• 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 device for high-pressure cleaning of surfaces, with cleaning nozzles (2) aligned in the direction of a cleaning area (1), a screen (3) surrounding the cleaning area (1) peripherally, forming a surface support (4) and one above the cleaning area (1). arranged suction channel (5) described. In order to design a device of the type described above so that contamination of a surrounding surface can be avoided and a high cleaning performance can be achieved, it is proposed that the nozzle axes (6) of at least four pairs of cleaning nozzles (2) form a common point of intersection (7) and in that the screen (3) has air inflow openings (14) obstructing the escape of stagnant liquid.
    公开号:AT521115A1
    申请号:T50309/2018
    申请日:2018-04-11
    公开日:2019-10-15
    发明作者:
    申请人:Klaus Diplinger；
    IPC主号:
    专利说明:

    The invention relates to a device for high-pressure cleaning of surfaces, with cleaning nozzles (2) aligned in the direction of a cleaning area (1), a screen (3) surrounding the cleaning area (1) peripherally, forming a surface support (4) and one above the cleaning area (1). arranged suction channel (5) described. In order to design a device of the type described above so that contamination of a surrounding surface can be avoided and a high cleaning performance can be achieved, it is proposed that the nozzle axes (6) of at least four pairs of cleaning nozzles (2) form a common point of intersection (7) and in that the screen (3) has air inflow openings (14) obstructing the escape of stagnant liquid.
    (Fig. 1) / 12 (41866) KA
    The invention relates to a device for high pressure cleaning of surfaces, with cleaning nozzles aligned in the direction of a cleaning area, a screen surrounding the cleaning area, forming a surface support, and a suction channel arranged above the cleaning area.
    Devices for cleaning surfaces are known from the prior art, which show a screen with at least one cleaning nozzle opening into it and a suction channel (DE 10155342 A1). The screen is on the edge of the surface to be cleaned to form a circumferentially enclosed by the screen cleaning area. A cleaning liquid is supplied as a cleaning jet to the cleaning area via the nozzles with high pressure, so that solid contaminants can be removed from the surface, after which the dirt particles are transported together with the supplied cleaning liquid through the suction channel from the cleaning area or from the screen. The disadvantage, however, is that in a partially resting on the surface of the screen, the impinging cleaning liquid can escape together with the detached contaminants under the screen edge of the cleaning area, so that thereby the surrounding surface is contaminated. In the case of a completely overlying screen, on the other hand, accumulated liquid accumulates, which can not be completely sucked off when pivoting or lifting the screen, so that the storage liquid contaminates the surrounding surface.
    / 12
    The invention is therefore based on the object, a device of the type described in such a way that contamination of a surrounding surface avoided while a high cleaning performance can be achieved.
    The invention solves the problem set by the fact that the nozzle axes of at least four pairwise opposed cleaning nozzles form a common point of intersection and that the screen has the outlet of Stauflüssigkeit obstructing Lufteinströmöffnungen.
    The invention is based on the observation that a cleaning jet of a single cleaning nozzle impinging perpendicularly on the surface is fanned out in radially outwardly projecting jet portions from the point of occurrence. In an inclined to the vertical angle of incidence, the beam portions do not fan uniformly in all directions, but extend substantially within a useful range and a storage area to be distinguished in which collects cleaning fluid in the form of a Stauwulstes. In this case, the beam portions running in the useful region always have a horizontal vectorial component of the incidence vector of the cleaning beam in the direction of the cleaning region and represent the beam components which perform an effective cleaning work.
    The inventive arrangement of the cleaning nozzles is thus achieved that the respective beam portions of the four pairwise opposed cleaning nozzles meet within the working area and thus not only prevent each other from reaching the respective opposite edge of the screen, but also distract when meeting in the direction of the suction. The common point of intersection of the nozzle axes can at the same time be the common point of occurrence of the cleaning jets on the cleaning area, or else they can only be located at a point below the cleaning area, thereby increasing the effective effective area. The suction itself is favored by the air inlet openings provided according to the invention, which avoid the formation of a negative pressure within the screen and thus enable a continuous removal of the used cleaning liquid from the cleaning area. Due to the features of the invention / 12 therefore the cleaning liquid is not only already deflected in the direction of the suction and thereby prevented from escaping under the screen, but at the same time favors their suction even by inflowing ambient air, so that contamination of the area outside the screen can be effectively avoided can. Although the arrangement of the air inlet openings can basically be chosen freely, particularly favorable cleaning conditions result when the air inflow openings are arranged, for example, in a marginal contact area of the screen. Consequently, the accumulating between the Nutzbereich and the screen inner edge Stauflüssigkeit acts as an additional seal the Lufteinströmöffnungen, provided that they are designed so that they favor entry of air, but prevent leakage of cleaning fluid, for example, due to their state of matter or their surface tension.
    In order to avoid leakage of cleaning liquid even with larger amounts of liquid, it is proposed that the nozzle axes of each two opposite cleaning nozzles form an angle between 30 ° and 90 °, preferably 70 °. This avoids that due to a too steep angle of incidence of the cleaning jets, namely less than 15 °, forms a too large Stauflüssigkeitswulst that can no longer be detected by the suction flow and removed. In return, an excessively low angle of incidence over 45 ° would reduce the size of the stagnation liquid bead, but this would be at the expense of the effective cleaning power of the blasting in the working area. If the respectively opposite cleaning nozzles enclose an angle of preferably 70 °, so that the angle of incidence is 35 °, the beam portions in the useful area have a sufficiently high cleaning power, while a liquid retention bead can form in an advantageous manner so that it surrounds the effective area as a liquid seal and still be well detected by the suction flow.
    The escape of cleaning fluid through the air inflow can be avoided for larger amounts of liquid, when the air inflow / 12 are formed as meandering channels. According to these features, a path extension and thus an increase in surface area formed as channels air inlet openings is effected, so that an exit of the accumulating backwater is further complicated by the thereby adjusting higher interfacial tensions, while an air inlet from the outside to form a suction unrestricted.
    In order to prevent that even in case of failure or malfunction of one or more cleaning nozzles and the associated elimination of the mutual prevention of beam propagation, the high-pressure beam components directly from the useful area in the air inlet and thus can pass the screen edge, it is proposed that the Air inlet openings tangentially to the screen inner wall opening channels form. According to one embodiment, the channels may be arranged, for example, in the edge-side support area such that they run equidistant from each other and without a common intersection of their channel longitudinal axes.
    Simple constructive conditions arise when the cleaning nozzles have in the suction channel adjoining the screen extending supply lines. As a result, a high-pressure line which feeds the cleaning nozzles and comprises a parallel supply line bundle can be covered in a protective manner by the suction channel, so that a compact construction and good handling of the device are achieved.
    In the drawing, the subject invention is shown, for example. Show it
    1 shows a schematic section of a device according to the invention,
    2 is a schematic plan view of a cleaning area on a larger scale,
    Fig. 3 is a schematic bottom view of a surface support forming a screen, also on a larger scale and
    Fig. 4 is a section along the line IV-IV of Fig. 1 on a larger scale.
    / 12
    A device according to the invention has cleaning nozzles 2 aligned in the direction of a cleaning area 1. The cleaning area 1 can be circular and is circumferentially surrounded by a screen 3, which at the same time forms a resting on the surface to be cleaned annular surface support 4. Of course, however, cleaning area 1 and screen 3 may also have other geometric shapes. Above the cleaning area 1, a suction channel 5 is arranged. In this case, the surface support 4 may be formed, for example, as an exchangeable and attached to the suction channel 5 mouthpiece whose geometry can be adapted to the surface contours to be cleaned, such as corners or curves.
    The nozzle axes 6 of the cleaning nozzles 2 form a common point of intersection 7, which is preferably located below the cleaning area 1. As a result, the cleaning jets of the respective cleaning nozzles 2 have no common point of occurrence, but span a useful area 8 shown in FIG. 2, which is located within the respective points 9 of the cleaning nozzles 2 in the cleaning area 1 and in which the effective cleaning work beam portions 10 of the cleaning liquid run. In the middle of the working area 8, a collision zone 11 is formed, in which the beam portions 10 meet and are thereby deflected upwards in the direction of the suction channel 5 and are sucked off together with the detached impurities.
    The useful area 8 is enclosed on the circumference by a storage area 12 in which the portions of the jet forming a stagnation liquid bead 13 run.
    In addition, the screen 3 to the outlet of Stauflüssigkeit obstructing air inflow openings 14. As can be seen in FIG. 3, the air inflow openings 14 can form channels which open tangentially to the screen inner wall. In this case, the channels can be formed open to the surface lying down. In a simple structural embodiment, the surface support 4 may have a separate support element 15 in which the channels extend. The Auflageele6 / 12 element 15 may be made for example of plastic or of a sealing material.
    In addition, the cleaning nozzles 2 can have supply lines 16 extending in the suction channel 5 adjoining the screen 3. In this case, a coupling element 17 can bring together the high pressure line 18 feeding the cleaning nozzles 2 with the feed lines 16 running in the suction channel 5. The coupling element 17 also has suction openings 19 which connect the suction channel 5 with a suction device. In advantageous embodiments it can therefore be provided that the device according to the invention is part of a handle connected to a wet suction device and a valve lever for regulating the injection power.
    权利要求:
    Claims (5)
    [1]
    1. A device for high-pressure cleaning of surfaces, with in the direction of a cleaning area (1) aligned cleaning nozzles (2), a cleaning area (1) circumferentially surrounding, a surface support (4) forming the screen (3) and one above the cleaning area (1) arranged Suction duct (5), characterized in that the nozzle axes (6) of at least four pairwise opposed cleaning nozzles (2) form a common point of intersection (7) and that the screen (3) the outlet of Stauflüssigkeit obstructing Lufteinströmöffnungen (14).
    [2]
    2. Apparatus according to claim 1, characterized in that the nozzle axes (6) in each case two opposite cleaning nozzles (2) together form an angle between 30 ° and 90 °, preferably 70 °.
    [3]
    3. Apparatus according to claim 1 or 2, characterized in that the air inflow openings (14) are formed as meandering channels.
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the air inflow openings (14) form tangential to the screen inner wall opening channels.
    [5]
    5. Device according to one of claims 1 to 4, characterized in that the cleaning nozzles (2) in which the screen (3) adjoining the suction channel (5) extending supply lines (16).
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3574817A1|2019-12-04|
    AT521115B1|2021-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5125126A|1989-12-04|1992-06-30|Cogema - Compagnie Generale Des Matieres Nucleaires|High pressure cleaner equipped with a recovery means for the cleaning liquid and waste|
    DE2700595A1|1977-01-08|1978-07-13|Woma Maasberg Co Gmbh W|Washer vacuum cleaner|
    CH679131A5|1989-06-13|1991-12-31|Technolizenz Ets|Surface-spraying machine - has guide casing enclosing slewing nozzle ring|
    US5970574A|1997-04-24|1999-10-26|Hydrochem Industrial Services, Inc.|Apparatus and method for cleaning surfaces by removing and containing waste|CN112958527A|2021-02-02|2021-06-15|叶永盛|Medical instrument negative pressure belt cleaning device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50309/2018A|AT521115B1|2018-04-11|2018-04-11|Device for high pressure cleaning of surfaces|ATA50309/2018A| AT521115B1|2018-04-11|2018-04-11|Device for high pressure cleaning of surfaces|
    EP19167292.2A| EP3574817A1|2018-04-11|2019-04-04|Device for high pressure cleaning of surfaces|
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