• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a system comprising a powder blasting device and a top element for cleaning the powder blasting device, wherein the powder blasting device comprises a chamber (3) for a powdery agent, a main body (4) with a media inlet region (5) for the entry of a medium and a media exit region (6) for discharging the powdery agent, the main body (4) having a first media line (7) leading from an outlet region (8) of the chamber (3) to the media exit region (6) and a second media line (9), which is arranged leading from the media entry area (5) to the media exit area (6). The attachment element is suitable for connection to the media exit region (6) and configured to conductively connect the second media line (9) to the first media line (7) for a cleaning fluid in such a way that the second entry line (5) enters the second exit Media line (9) inflowing cleaning fluid flows to the attachment element and from there through the first media line (7) to the outlet region (8) of the chamber (3).
    公开号:CH714985A2
    申请号:CH4492019
    申请日:2019-04-03
    公开日:2019-11-15
    发明作者:Haarmann Markus；Dangel Klaus
    申请人:Kaltenbach & Voigt；
    IPC主号:
    专利说明:

    Description: The invention relates to a system with a powder jet device and an attachment element for cleaning the powder jet device.
    A powder jet device is known from the prior art, which has a chamber for a powdery agent, and a media inlet area, via which water and compressed air can be passed into the powder jet device. The powder jet device has a cannula at a front end region. A compressed air line leads from the media inlet area to the chamber, so that a compressed air can be introduced into the chamber during functional operation. The compressed air then mixes in the chamber with the powdery agent located there, so that a mixture of the compressed air and the powdery agent, also referred to here briefly as a powder-air mixture, is formed. This mixture is then conveyed from the chamber via a further line to the front end region and released into the open via the cannula.
    In addition, a water pipe leads from the media inlet area to the front end area, so that in functional operation water can be conducted via the water line to the front end area and then released into the open via the cannula. The cannula is designed so that the powder-air mixture and the water mix when they exit.
    The chamber is formed by a chamber housing element that can be screwed onto a main body of the powder jet device. The cannula can also be reversibly separated from the main body.
    The following procedure is known for cleaning the powder jet device: the cannula and the chamber housing element are separated from the main body. The media inlet area formed on the main body is then connected to a coupling of a cleaning device, so that in the subsequent cleaning operation, a cleaning fluid is passed via the coupling both into the water line and into the compressed air line, and in this way these two lines are cleaned. A corresponding cleaning device is known, for example, from DE 196-26 871 A1.
    However, the cleaning fluid is not passed through the further line through which the powder-air mixture is passed from the chamber to the cannula during operation. There is therefore a risk that this additional line will not be cleaned sufficiently.
    The invention has for its object to provide a system with a powder jet device, which enables a particularly suitable cleaning of the powder jet device. In particular, see a media line of the powder jet device. can be cleaned particularly well, via which a powder-air mixture is guided from the chamber to the front end area during operation. In addition, an attachment element is to be specified with which a particularly suitable cleaning of a corresponding powder jet device is made possible.
    This object is achieved according to the invention with the objects mentioned in the independent claims. Particular embodiments of the invention are specified in the dependent claims.
    According to the invention, a system is provided with a powder jet device and an attachment element for cleaning the powder jet device. The powder jet device has a chamber for a powdery agent.Furthermore, the powder jet device has a main body with a media entry area for the entry of at least one medium and a media exit area for the exit of the powdery agent.The main body has a first media line which leads from an outlet area to the Chamber is arranged leading to the media exit area and a second media line, which is arranged leading from the media entry area to the media exit area. The attachment element is suitable for connection to the media outlet area and is designed to conductively connect the second media line to the first media line for a cleaning fluid such that the cleaning fluid flowing into the second media line via the media entry area flows to the attachment element and from there through the first media line to the outlet area of the chamber.
    With the attachment element, the cleaning fluid can be guided through the first media line, specifically from the media outlet area to the outlet area of the chamber. In this way, the first media line can be cleaned in a particularly suitable manner.
    Preferably, the attachment element has a, at least in the first approximation, rod-shaped area, which can be arranged so as to be connected to the media outlet area in a recess formed by the media outlet area. This is particularly advantageous with regard to handling when connecting the attachment element to the media outlet area of the main body.
    Preferably, the attachment element is designed cap-shaped, it being for connection to the media outlet area. The latter can be arranged comprehensively. This is also advantageous with regard to handling when connecting the attachment element to the media outlet area of the main body.
    Preferably, the attachment element has a sealing element which bears sealingly against a wall area of the media outlet area when the attachment element is connected to the media outlet area as provided. The sealing element can be used in a technically simple way to prevent cleaning
    CH 714 985 A2 process the cleaning fluid emerges between the media outlet area of the main body and the attachment element and is therefore no longer available for cleaning the first media line.
    The media outlet area preferably has an outer wall area which is at least approximately cylindrical, so that a main axis of the media outlet area is defined by the corresponding cylinder axis, the attachment element being parallel to one another by a plug-in movement. the main axis or a rotary movement about the main axis can be connected to the media outlet area. This is advantageous with regard to a simple establishment of the connection between the attachment element and the media outlet area.
    [0015] The media outlet area preferably has a first opening which forms a front end area of the first media line, the main axis running through the first opening. As a result, the first media line is particularly suitable for directing a mixture of the powdery medium and compressed air, in short a powder-air mixture, to the media outlet area.
    [0016] The media outlet area preferably also has a second opening which forms a front end area of the second media line, the second opening being formed radially outside the main axis. As a result, the second media line is particularly suitable for guiding water or air to the media outlet area.
    Preferably, the first media line is formed to extend parallel to the main axis. As a result, the first media line is particularly suitable for directing the powder-air mixture.
    [0018] The first media line is preferably designed to extend in a straight line. This is advantageous with regard to the line of the powder-air mixture to the media outlet area.
    The media outlet area is preferably designed to be connected to a cannula element of the powder jet device. The cannula element enables a particularly suitable, external delivery of the powder-air mixture.
    The chamber is preferably formed by a chamber housing element which can be reversibly connected to the main body, in particular via a screw connection. In order to prepare for a cleaning process, the chamber housing element can be separated from the main body of the powder jet device in a particularly suitable manner.
    Preferably, the main body also has a third media line, which is arranged leading from the media entry area into the chamber. This third media line allows compressed air to be fed into the chamber in a particularly suitable manner, through which the powder-air mixture can then be formed in the chamber.
    [0022] The main body preferably also has a fourth media line, which is arranged to lead from the media entry area to the media exit area. In this way, another medium can be suitably made available at the media exit area.
    Preferably, the design is such that the fourth media line at the media exit area is open to the outside when the attachment element is allied to the media exit area as provided. This enables a suitable, simple design of the attachment element.
    According to a further aspect of the invention, an attachment element for cleaning a powder jet device is provided, which can be reversibly connected to a media outlet region of a main body of the powder jet device, the design being such that the attachment element, if it is provided as intended is connected to the media outlet area, a second media line of the main body, which leads from a media inlet area of the main body to a media outlet area of the main body, is conductively connected for cleaning fluid to a first media line of the main body, which is from a chamber for a powdery agent of the powder jet device to the media outlet area leads.
    The invention is explained below using an exemplary embodiment and with reference to the drawings. It shows:
    1 is a perspective sketch of a main body of a powder jet device, the media outlet area of which is connected to an attachment element according to the application and the media inlet area is connected to a coupling, via which a cleaning fluid can be passed into the main body for cleaning the main body,
    2 is a perspective sketch of the powder jet device,
    3 shows a sketch of a side view of the main body of the powder jet device with the attachment element placed on the media outlet area,
    4 shows a schematic sketch of media lines of the main body,
    5 shows a sketch of the area designated by A in FIG. 4,
    CH 714 985 A2
    6 shows a sketch of the area designated B in FIG. 4,
    Fig. 7 is a schematic sketch of media lines of the main body according to a second embodiment and
    8 shows a sketch of the area designated 0 in FIG. 7.
    2, a powder jet device 1 is schematically outlined in perspective. The powder jet device 1 can in particular be a dental powder jet device. For example, the powder jet device 1 can be designed to clean tooth surfaces by dispensing a powder-air mixture under excess pressure.
    The powder jet device 1 has a main body 4 with a media entry area 5 for the entry of at least one medium. Media, for example in the form of water or compressed air, can be introduced into the main body 4 through the media inlet area 5.
    At a front end area of the main body 4, a media outlet area 6 of the main body 4 is formed, which is designed to be connected in particular reversibly to a cannula element 11 of the powder jet device 1. The design is such that media, such as the powdery medium, in particular in the form of a powder-air mixture, can emerge from the latter via the media outlet area 6 of the main body 4 and are guided into the cannula element 11 and further on at a front End region of the cannula element 11 are released to the outside.
    4 shows a schematic sketch in which the main body 4 can be seen here, with the cannula element 11 removed.
    The powder jet device 1 has a chamber 3 for a powdery agent, in particular an abrasive agent. The chamber 3 is preferably formed by a chamber housing element 31 which can be reversibly connected to the main body 4, in particular by means of a screw connection.
    The main body 4 has a first media line 7, which is arranged leading from an outlet area 8 of the chamber 3 to the media outlet area 6. In particular, this first media line 7 is designed to convey the powder / air mixture from the chamber 3 to the media outlet area 6. For this purpose, the first media line 7 preferably extends in a straight line.
    Furthermore, the main body 4 has a second media line 9, which is arranged leading from the media entry area 5 to the media exit area 6. For example, the second media line 9 can be configured to convey water under excess pressure.
    For example, the design can be such that, in functional operation, the water conducted via the second media line 9 was conducted outwards via the cannula element 11, as was the powder-air mixture. At the front end of the cannula element 3, a nozzle can be formed through which the emerging powder-air mixture and the emerging water are mixed together.
    To clean the powder jet device 1, it can be provided that a cleaning fluid is introduced into the main body 4 via the media inlet area 5, in particular into the second media line 9. In this way it can be achieved that the second media line 9 is cleaned by the cleaning fluid. As shown in a perspective sketch in FIG. 1, it can be provided, for example, that the media inlet area 5 is connected to a coupling 50 of a cleaning device (not shown as such in the figures), so that in the subsequent cleaning operation the cleaning fluid via the coupling; 50 is introduced into the second media line 9. A corresponding cleaning device is known, for example, from DE 19 626 871 A1.
    A system according to the application comprises, in addition to the powder jet device 1, an attachment element 2 which is used for connecting to the. Media exit area 6 is suitable or designed. A side view is sketched in FIG. 3, in which - as also in FIG. 1 - the attachment element 2 is shown in a state connected to the media outlet area 6 as intended.
    The attachment element 2 is designed to conductively connect the second media line 9 to the first media line 7 for the cleaning fluid such that the cleaning fluid flowing into the second media line 9 via the media inlet area 5 leads to the attachment element 2 flows and from there on through the first media line 7 to the outlet area 8 of the chamber 3. Thus, it can be achieved by the attachment element 2 that the first media line 7 flows through with the cleaning fluid and is cleaned in this way.
    5, the section designated by A in FIG. 4 is outlined in more detail. In the embodiment shown here, the attachment element 2 has an at least approximately rod-shaped area 2, which can be arranged so as to be connected to the media outlet area 6 in a recess 66 formed by the media outlet area 6.
    The media outlet area 6 here has a first opening 63 which forms a front end area of the first media line 7 and a second opening 64 which forms a front end area of the second media line 9. If
    CH 714 985 A2 the attachment element 2, as provided, is connected to the media outlet area 6, the first media line 7 is accordingly connected to the second media line 9. For example, the attachment element 2 can have an approximately L-shaped tube 22 for this purpose.
    Preferably, the attachment element 2 has a sealing element 21, which bears sealingly against a wall area 61 of the media outlet area 6 when the attachment element 2 is connected to the media outlet area 6 as provided. In the example shown in FIG. 5, the wall area 61 is formed by a preferably cylindrical inner wall area of the recess 66.
    The media outlet area 6 preferably has an at least approximately cylindrical outer wall area 62, so that a main axis H of the media outlet area 6 is defined by the corresponding cylinder axis. The attachment element 2 can preferably be connected to the media outlet area 6 by a plug-in movement parallel to the main axis H or a rotary movement about the main axis H.
    As indicated in FIG. 5, the design is preferably such that the main axis H runs through the first opening 63. Furthermore, the second opening 64 is preferably designed to lie radially outside the main axis H.
    As indicated in FIG. 4, the first media line 7 preferably extends parallel to the main axis H or along the main axis H. The main axis H preferably further forms a main axis of the main body
    4. The media entry area 5 is preferably formed on a lateral extension 41 of the main body 4, which extends, for example, along a minor axis N of the main body 4. For example, the design can be such that the secondary axis N forms an angle α with the main axis H, which is between 45 ° and 90 °, preferably between 35 ° and 70 °.
    [0043] Furthermore, the main body 4 preferably has a third media line: 13, which leads from the media entry area. 5 is arranged leading into the chamber 3. The third media line 13 can be provided, in particular, for introducing compressed air into the chamber 3 during the functional operation of the powder jet device 1, which is then mixed with the powdery agent which is located in the chamber 3, so that in this way the powder-air mixture , is formed. In addition, the powder-air mixture is then passed through the first media line 7 to the media outlet area 6 due to compressed air and finally discharged to the outside via the cannula element 11.
    During a cleaning process, the cleaning fluid can also be introduced into the third media line 13, for example via the coupling 50, which is cleaned in this way.
    In the example shown, the main body 4 has a rear connection piece 32, on which both the outlet area 8 of the chamber 3 is formed, and an outlet area 33 of the third media line 13. The connection piece 32 preferably lies on the main axis H.
    6, the section designated by B in FIG. 4 is sketched in more detail. Two openings of the outlet area 33 are indicated, through which the compressed air is guided into the chamber 3 in the functional mode. The direction of this compressed air flow is indicated by arrows. In cleaning operation, the cleaning agent can be passed through accordingly, so that the cleaning fluid also flows in the indicated direction.
    As indicated by a further arrow along the first media line 7, the cleaning fluid can be driven through the first media line 7 in the cleaning operation in such a way that it flows through the outlet area 8 of the chamber 3 into the latter. In the puncture mode, on the other hand, the powder-air mixture is conveyed in the other direction through the first media line 7, that is to say from the outlet area 8 of the chamber 3 to the media outlet area 5. Because the first media line 7 thus flows retrogradely, so to speak, for cleaning a particularly effective cleaning can be achieved.
    7 and 8, a second embodiment is outlined. In the following, essentially only the differences from the first exemplary embodiment are discussed. The reference symbols are used analogously.
    As indicated in FIG. 7, the main body 4 here also has a fourth media line 14, which is arranged to lead from the media entry area 5 to the media exit area 6. In this embodiment, the fourth media line 14 can be provided in particular for water, while the second media line 9 - in contrast to the above - can be provided for further compressed air. It can thus be achieved that the powder-air mixture is made available at the media outlet area 6 via the first media line 7, water via the second media line 9 and compressed air via the fourth media line 14.
    8, the section designated by C in FIG. 7 is sketched in more detail. Here the attachment element is 2 cap-shaped. To connect to the media exit area 6, the latter can be arranged comprehensively. The sealing element 21 lies, sealingly, against a wall region 61 of the media outlet region 6, which here forms the cylindrical outer wall region 62 of the media outlet region 6.
    The arrows in turn relate to the direction of flow of the cleaning fluid in the cleaning operation or during the cleaning process.
    As further indicated in FIG. 8, the design here is preferably such that the fourth media line 14 at the media outlet area 6 is open to the outside when the attachment element 2 is provided with the media outlet as intended
    CH 714 985 A2 area 6 is connected. For example, the fourth media line 14 can open radially outward at the outer wall area 62, specifically at a location that is not included in the attachment element 2 if it is connected to the media outlet area 6 as provided.
    In the cleaning operation, the cleaning fluid can be introduced via the media inlet area 5 into the second media line 9 and into the third media line 13 and into the fourth media line 14. The attachment element 2 connects the second media line 9 to the first media line 7, so that the cleaning fluid in turn flows retrograde through the first media line 7 and reaches the outside via the connection piece 32. The cleaning fluid flowing through the fourth media line 14 emerges at the media outlet area 6.
    [0054] A method according to the application for cleaning the powder jet device 1 comprises the following steps:
    a) connecting the attachment element 2 with the media outlet area 6 of the main body 4 and
    b) Introducing a cleaning fluid via the media inlet area 6 of the main body 4 into the second media line 9, so that the cleaning fluid is conducted through the second media line 9 to the media outlet area 6, is redirected there via the attachment element 2 and through the first media line 7 to the Outlet area 8 of the chamber 3 flows.
    权利要求:
    Claims (15)
    [1]
    claims
    1. System with a powder jet device (1) and an attachment element (2) for cleaning the powder jet device (1), the powder jet device (1) having the following:
    - a chamber (3) for a powdery agent,
    - A main body (4) with a media entry area (5) for entry: at least one medium and with a media exit area (6) for the exit of the powdery medium, the main body (4) having a first media line (7) leading from an outlet area ( 8) of the chamber (3) leading to the media outlet area (6) and a second media line (9) leading from the media inlet area (5) to the media outlet area (6), the attachment element (2) for Connection to the media outlet area (6) is suitable and is designed to conductively connect the second media line (9) to the first media line (7) for a cleaning fluid in such a way that it flows into the second media line (9) via the media inlet area (5). Incoming cleaning fluid flows to the attachment element (2) and from there, on through the first media line (7) to the outlet area (8) of the chamber (3).
    [2]
    2. System according to claim 1, characterized in that the attachment element (2) has an at least in the first approximation rod-shaped area (23) which for connection to the media outlet area (6) into a recess formed by the media outlet area (6) (66) can be arranged enclosing.
    [3]
    3. System according to claim 1 or 2, characterized in that the attachment element (2) is cap-shaped and for connecting to the media outlet area (6) the latter can be arranged comprehensively.
    [4]
    4. System according to any one of the preceding claims, characterized in that the attachment element (2) has a sealing element (21) which bears sealingly against a wall area (61) of the media outlet area (6) when the attachment element (2) is connected to the media outlet area (6) as provided.
    [5]
    5. System according to one of the preceding claims, characterized in that the media outlet region (6) has an at least approximately cylindrical outer wall region (62), so that the corresponding cylinder axis has a main axis (H); of the media outlet area (6) is fixed, the attachment element (2) being connectable to the media outlet area (6) by a plug-in movement parallel to the main axis (H) or a rotary movement about the main axis (H).
    [6]
    6. System according to claim 5, characterized in that the media outlet area (6) has a first opening (63) which forms a front end area of the first media line (7), the main axis (A) through the first opening (62) runs.
    [7]
    7. System according to claim 6, characterized in that the media outlet region (6) also has a second opening (64) which forms a front end region of the second media line (9), the second opening (63) radially outside the main axis (H ) is horizontal.
    [8]
    8. System, according to one of claims 5 to 7, characterized in that the first media line (7) is formed extending parallel to the main axis (H).
    [9]
    9. System according to any one of the preceding claims, characterized in that the. first media line (7) is designed to extend in a straight line.
    [10]
    10. System according to one of the preceding claims »characterized in that the media outlet area (6) is designed to be connected to a cannula element (11) of the powder jet device (1).
    CH 714 985 A2
    [11]
    11. System according to any one of the preceding claims, characterized in that the chamber (3) is formed by a chamber housing element (31) which is reversibly connectable to the main body (4), in particular via a screw connection.
    [12]
    12. System according to one of the preceding claims, characterized in that, the main body (4) has a third media line (13) which is arranged leading from the media inlet area (5) into the chamber (3).
    [13]
    13. System according to claim 12, characterized in that the main body (4) has a fourth media line (4) which is arranged leading from the media entry area (5) to the media exit area (6).
    [14]
    14. System according to claim 13, characterized in that the. The design is such that the fourth media line (14) at the media outlet area (6) is open to the outside when the attachment element (2) is connected to the media outlet area (6) as provided.
    [15]
    15. attachment element (2) for cleaning a powder jet device (1) which can be reversibly connected to a media outlet area (6) of a main body (4) of the powder jet device 1, the design being such that, by means of, the attachment element (2), if it is connected to the media outlet area (6) as provided, a second media line (9) of the main body (4) which leads from a media entry area (5) of the main body (4) to a media outlet area (6) of the main body ( 4) leads, for a cleaning fluid, to a first media line (9) of the main body (4), which leads from a chamber (2) for a powdery agent of the powder jet device (1) to the media outlet area (6).
    CH 714 985 A2

    Rg.1
    CH 714 985 A2

    CH 714 985 A2

    CH 714 985 A2

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    CH 714 985 A2

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    同族专利:
    公开号 | 公开日
    FR3080785A1|2019-11-08|
    DE202018102427U1|2019-08-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE9110650U1|1990-09-25|1991-10-24|Streit Ag Lack- Und Farbenfabrik, Frauenfeld, Ch|
    DE19626871B4|1996-07-04|2005-01-27|Miele & Cie. Kg|Flushing device for internal flushing and holding dental handpieces and contra-angle handpieces|
    TWM418736U|2011-09-01|2011-12-21|Strong Fortress Tool Co Ltd|Spray gun apparatus|
    EP2650052B2|2012-04-13|2021-01-27|J. Wagner AG|Powder beaker spray gun and spray coating device with same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE202018102427.2U|DE202018102427U1|2018-05-02|2018-05-02|System with a powder blasting device and an attachment element for cleaning the powder blasting device|
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