• 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:
    Electrical installation system presenting a hollow wall box (10) with a tubular base body (11) for housing an insert of the electrical installation, the tubular base body (11) being closed at its first end with a bottom wall (12) and presenting at its second end a fastening lug (13) joined by molding with the base body (11) that protrudes radially outwards, the base body (11) presenting two fixing housings (14) opposite in the circumference, a mounting frame (20) with first openings (24) to pass respectively a fixing element (30) cooperating with one of the fixing housings (14), and a recess (23) for housing the clamping ear (13), where the mounting frame (20) rests on a surface of the hollow wall (1) being flush with it. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2856093A1
    申请号:ES202030248
    申请日:2020-03-26
    公开日:2021-09-27
    发明作者:Flo Jorge Busquets
    申请人:Fabrica Electrotecnica Josa S A U；
    IPC主号:
    专利说明:

    [0004] The invention relates to an electrical installation system, presenting a hollow wall box for housing an insert of the electrical installation, for example a switch, a push button, a socket or the like, as well as a mounting frame that It can be fixed in the hollow wall box.
    [0006] When carrying out the electrical equipment of buildings, electrical lines are placed from a distributor of the electrical installation to the different rooms to connect plug boxes, switches, thermostats, light outlets or the like with the electrical network. Socket boxes, switches, pushbuttons, but also dimmers, actuators and sensors are also called electrical installation inserts. Since the electrical installation nowadays is no longer installed on the wall but inside the wall "flush-mounted", as a general rule, so-called flush-mounted boxes are used to house the inserts of the electrical installation. In most cases they are containers made of plastic cups, which are inserted into the wall, for example made of bricks or concrete, and then plastered. It must be taken into account that the recessed boxes are placed at the correct depth in the wall and that they have a firm hold on the wall. Recessed boxes of this type are intended for the subsequent mounting of sockets, switches, dimmers, thermostats, boxes for telephones and antennas, for derivations and connections of lines or similar and can be purchased, depending on the use, in different sizes , with different depths and with a different number of possible cable entries.
    [0008] Unlike solid walls, for walls with hollow spaces, for example drywall walls built with drywall, as used in most cases for flexible construction of room interiors, so-called hollow wall boxes are used. . The hollow-wall boxes, called and also used as junction boxes or junction boxes, are the suitable equivalent of the flush-mounted box and also serve to accommodate the inserts of the electrical installation indicated above, for example for the mounting of switches and socket outlets. As a rule, at the rear of the hollow-wall box there are inlets for conduit lines. different sizes to run power lines of different thicknesses. The hollow wall box is generally fixed with two clamping screws or metal claws on the sides. For reasons related to fire protection, the hollow wall boxes are generally made of a material resistant to ignition.
    [0010] From the European document EP 2 882 056 B1 a hollow wall box is known which has at the end of its substantially cylindrical base body an outwardly projecting annular rim, which prevents that, when the hollow wall box is inserted into an opening made in the hollow wall, it is inserted too deep into the opening. However, for the hollow wall box to end after insertion into the corresponding opening flush with the wall surface, the opening must be provided with a circumferential annular concavity in which the annular rim of the box is housed. of hollow wall leaving the surfaces flush.
    [0012] However, since the realization of the annular concavity represents an additional effort in the preparation of the assembly, the present invention aims to provide an electrical installation system with a hollow wall box that can be manufactured economically and assembled In a simple way. This object is achieved according to the invention by the electrical installation system according to claim 1. The dependent claims relate to advantageous configurations.
    [0014] The electrical installation system according to the invention has a hollow wall box as well as a mounting frame. The hollow-wall box in this case has a tubular base body for housing an insert of the electrical installation, for example a switch, a push-button, a socket or the like, and can be inserted into an opening made in a wall. hollow. At its first end, the tubular base body is closed with a bottom wall and at its second end it has a clamping lug joined by molding with the base body that protrudes radially outward. Furthermore, the base body has two fixing housings arranged opposite each other on the circumference. To this end, the mounting frame has first openings to allow a fixing element to pass through respectively, which cooperates with one of the fixing housings, in order to fix the mounting frame in the hollow wall box. In addition, the mounting frame has a recess to accommodate the retaining lug, so that the mounting frame rests on the surface of the hollow wall and is flush with it. This eliminates the need to use a special tool to machine the opening in the hollow wall and allows a perfect fit between the protective frame and the wall.
    [0016] The tubular or cylindrical base body does not have an annular rim joined by molding with it that protrudes radially outwards, but only a tab-like fastening lug, which is not annular, but is only molded together in a short section. with the edge of the tubular base body and which serves to limit the depth of entry of the hollow wall box into the hollow wall. Since the hollow-walled box does not have an annular rim, an annular concavity does not have to be made either when the opening is made. In the assembled state, the clamping lug protrudes from the second end of the base body and abuts the surface of the hollow wall, while the second end of the tubular base body ends with the surface of the hollow wall being flush with it. In this way, the effort to make the opening can be clearly reduced.
    [0018] In order to further prevent the mounting frame from having a distance in the mounted state caused by the thickness of the retaining lug from the surface of the hollow wall, the mounting frame has a recess which, relative to its size and position, corresponds to the size already the position of the clamping ear, so that the clamping ear is completely housed in the recess. In this way it is ensured that there is no distance between the clamping frame and the surface of the hollow wall and that the mounting frame rests on the surface of the hollow wall with the surfaces being flush.
    [0020] For fixing the mounting frame to the hollow-wall box, it has two fixing housings arranged opposite each other on the circumference, into which fixing elements, for example screws, can be inserted. For this purpose, the mounting frame has first openings corresponding to their position through which the fixing means are made to pass and can be connected to the fixing housings.
    [0022] In an advantageous variant of the electrical installation system, the base body has two fastening elements arranged opposite each other on the circumference for the positive fit fastening of the hollow wall box in the opening.
    [0023] With the aid of the two fastening elements, the hollow wall box can be securely fastened in the opening made in the hollow wall. This can be done irreversibly, i.e. only by breaking the fastening elements, for example by means of flexible snap hooks, molded into the hollow wall box, which when inserting the hollow wall box into the hollow wall they fit behind the rear side of the same, or also reversibly, that is to say fixed but removable, for example by means of separating elements that can be actuated by screws, which when screwing in the screws also engage behind the rear side of the hollow wall . The two alternatives allow a simple and safe fixing of the hollow wall box on the hollow wall.
    [0025] In another advantageous variant of the electrical installation system, the fixing housings and the fixing elements are made in a regular offset manner relative to one another on the circumference of the base body.
    [0027] When two fixing housings as well as two fixing elements are arranged respectively opposite each other on the circumference of the base body, a fixing housing and a fixing element respectively have an angle of 90 ° on the circumference one with respect to the other. This clearly simplifies the mounting of the hollow-wall box in the opening in the hollow-wall, as well as of the mounting frame in the hollow-wall box. It is also possible to arrange more than two fixing housings and / or fixing elements on the circumference.
    [0029] In a further advantageous variant of the electrical installation system, at least one pair of clamping lugs is molded to the base body which protrudes radially outwards, the mounting frame having at least one pair of recesses for accommodating respectively one pair of fastening ears.
    [0031] Thanks to the pairwise arrangement of the clamping ears, the position of the hollow wall box can be more easily defined by inserting it into the opening of the hollow wall. As a result, assembly is clearly simplified. According to the invention, two or more pairs of clamping lugs can also be molded into the base body here.
    [0033] In another advantageous variant of the electrical installation system, the clamping ears are arranged equidistant on the circumference of the base body.
    [0035] Thanks to the equidistant arrangement of the clamping ears, that is to say at regular distances between them, a more exact positioning of the hollow wall box is achieved in the opening of the hollow wall. The clamping ears are arranged respectively in pairs opposite each other, so that in the case of two clamping ears they have an angle of 180 ° on the circumference, in the case of four clamping ears an angle of 90 ° in the circumference.
    [0037] In another advantageous variant of the electrical installation system, the recesses made in the mounting frame correspond with respect to their number and position to the number and position of the fastening ears made in the base body of the hollow-wall box.
    [0039] However, it is essential for the invention that the recesses made in the mounting frame correspond with respect to their position to the position of the clamping ears, that is to say that the clamping ears are all housed in the recesses, so that a gap caused by the clamping lugs is not formed between the cavity wall surface and the mounting frame.
    [0041] In another advantageous variant of the electrical installation system, the fixing housings and the fixing elements, on the one hand, as well as the clamping ears, on the other hand, are made offset at regular distances on the circumference of the base body.
    [0043] Thanks to the offset arrangement, the different functions of the fixing housings, the fixing elements, as well as the clamping lugs can be separated in space, thereby further simplifying the assembly.
    [0045] Next, an embodiment example of the electrical installation system will be explained in more detail with reference to the attached Figures. In the Figures they show:
    [0047] Figures 1 and 2, schematic representations of a first known arrangement.
    [0049] Figures 3 and 4, schematic representations of a second known arrangement.
    [0051] Figures 3 to 7, schematic representations of the electrical installation system according to the invention.
    [0053] In the different Figures of the drawing, the same parts are always provided with the same reference sign. The description is valid for all the Figures in the drawing in which the corresponding part can also be seen.
    [0055] Figures 1 and 2 show schematic representations of a first arrangement already known from the state of the art of an electrical installation system in different views and assembly states. In this case, Figure 1 shows an exploded perspective representation of the electrical installation system, while Figure 2 shows the newly assembled electrical installation system in a side sectional representation. The electrical installation system is substantially formed by a hollow wall box 10, as well as a mounting frame 20 which can be connected with the help of suitable fixing elements to the hollow wall box 10.
    [0057] The hollow wall box 10 serves to house an insert of the electrical installation, for example a switch, a push button, a socket or the like, and can be inserted into an opening 2 made in a hollow wall 1. The box The hollow wall 10 is generally made of plastic and has a substantially cylindrical, tubular base body 11 which at its first end is closed with a bottom wall 12. At its second end, the base body 11 has a clamping flange. 16 joined by molding that protrudes radially outward, which serves to limit the depth of insertion of the hollow wall box 10 into the opening 2. Since the clamping flange 16 has a larger diameter than the opening 2, in the The assembled state rests on the surface of the hollow wall 1. Furthermore, the hollow wall box 10 has two fixing housings 14 which are arranged on an inner side of the base body 11 and which serve for fixing the sea. clamping unit 20 in the hollow wall box 10.
    [0059] For this purpose, the mounting frame 20 has two first openings 24 for allowing a fixing element, for example a screw, to pass through respectively, one of the fixing housings 14, in order to securely fix the mounting frame 20 in the hollow wall box 10. In addition, the mounting frame 20 has two second openings 25, corresponding relative to its position with two fastening elements 15 made on the base body 11. The fastening elements 15 serve for snap fastening positive of the hollow wall box 10 in the opening 2 and can be actuated with a suitable tool, for example a screwdriver, through the two second openings 25. To offer a visually pleasing appearance, the holding frame 20 can be covered after mounting by a decorative or protective frame 40 which can be fixed in the same.
    [0061] However, the arrangement shown in Figures 1 and 2 has the drawback that the clamping flange 16 rests on the outer surface of the hollow wall 1, whereby the clamping frame 20 subsequently fixed in the wall box hollow 10 and therefore also the protective frame 40 fixed therein has a distance a from the surface of the hollow wall 1.
    [0063] In Figures 3 and 4, corresponding to the representations of Figures 1 and 2, a second arrangement already known from the state of the art of an electrical installation system is schematically shown in different views and assembly states. Figure 3 in turn shows an exploded representation in perspective of the electrical installation system, while Figure 4 in turn represents the electrical installation system just assembled in a lateral sectional representation. Unlike the arrangement shown in Figures 1 and 2, the opening 2 made in the hollow wall 1 has an annular concavity 3. It is a cylindrical concavity that serves to house the clamping flange 16 as a collar, so that the hollow wall box 10 inserted in the opening 2 ends flush with the surface of the hollow wall 1. In this way it can Avoid a distance between the mounting frame 20 and the surface of the hollow wall 1, as shown in Figure 2. However, for this, the concavity 3 must additionally be made when the opening 2 is made, which is associated with an effort additional mounting.
    [0065] In Figures 5 to 7, the electrical installation system according to the invention is schematically represented in different states of assembly. Figure 5 here shows the hollow wall box 10 and the mounting frame 20 before insertion into the opening 2 made in the hollow wall 1, while in Figure 6 the hollow wall box 10 is already inserted into the opening 2. Figure 7 finally shows the hollow wall box 10 inserted with the mounting frame 20 mounted therein by two fixing elements 30.
    [0067] Unlike the arrangements represented in Figures 1 to 4, the system of electrical installation according to the invention is characterized in that the hollow wall box 10 does not have any clamping flange but only four clamping lugs 13, which at the second end of the base body 11 are joined by molding with it so that they protrude radially outward. Analogously to the clamping flange 16 shown in Figures 1 to 4, the clamping lugs 13 of the hollow wall box 10 according to the invention serve to limit its insertion depth in the opening 2. It should be added that the opening 2 it does not present any concavity: the clamping ears 13 bear, like the clamping flange 16 shown in Figure 2, directly on the surface of the hollow wall 1.
    [0069] In order to avoid a distance a between the mounting frame 20 and the surface of the hollow wall 1 as represented in Figure 2, the clamping frame 20 according to the invention has four notches 23, which with respect to their position and size correspond to the position and to the size of the four clamping ears 13 made in the hollow wall box 10. This means that, in the assembled state, the clamping ears 13 are completely housed in the recesses 23. As a result, there is no distance between the mounting frame 20 and the surface of the hollow wall; the holding frame rests (in the assembled state) on the surface of the hollow wall 1, the surfaces being flush.
    [0071] In the example shown, the two fixing housings 14 and the two fixing elements 15 are made respectively opposite each other on the circumference of the base body 11. Furthermore, the fixing housings 14 and the fixing elements 15 are made of shape displaced at regular distances from each other on the circumference of the base body 11, that is, with an angle of 90 ° on the circumference between them. However, this is not essential. The fastening elements 15 in the present case each have a fastening screw 15a, by means of which a fastening claw 15b can be actuated such that when the fastening screw 15a is tightened, the clamping claw 15b is moved from the body base 11 radially outward to engage in the positively fitted mounted state behind the hollow wall 1. The fastening elements 15 serve for the positively fit fastening of the hollow wall box 10 in the opening 2 and can be actuated with a A suitable tool for this, for example a screwdriver, passing the same through the two second openings 25. In this way it is possible to fix the hollow wall box 10 inserted in the opening 2 first only slightly by means of the fixing elements 15, to first align the clamping frame 20 with respect to the hollow wall box 10 and fix it. Then the elements of The fastening 15 can be fully tightened, to achieve a secure hold of the hollow wall box 10 on the hollow wall 1. To facilitate the horizontal or vertical adjustment of the fastening frame 20, the first and second openings 23, 24 are respectively made as elongated holes.
    [0073] Furthermore, the four clamping ears 13 are joined by molding with the base body 11 in such a way that they are arranged at an offset by 45 ° with respect to the clamping housings and the clamping elements, that is, the clamping ears 13 have a 45 ° angle on the circumference relative to the fixing housings / fixing elements 14, 15.
    [0074] List of reference signs
    [0076] 1 Hollow wall
    [0077] 2 Opening
    [0078] 3 Concavity
    [0080] 10 Hollow wall box 11 Base body
    [0081] 12 Background wall
    [0082] 13 Clamping ear 14 Fixing housing 15 Fixing element 15a Fixing screw 15b Fixing claw
    [0083] 16 Clamping flange
    [0085] 20 Mounting frame 23 Cut-out
    [0086] 24 First opening 25 Second opening
    [0088] 30 Fixing element
    [0090] 40 Protective frame
    [0092] from distance
    权利要求:
    Claims (7)
    [1]
    1. Electrical installation system, presenting:
    - a hollow wall box (10) with a tubular base body (11) for housing an insert of the electrical installation, for example a switch, a push button, a socket or the like, which can be inserted into an opening ( 2) made in a hollow wall (1),
    - the tubular base body (11) being closed at its first end with a bottom wall (12) and presenting at its second end a fastening lug (13) joined by molding with the base body (11) that protrudes radially towards the Exterior,
    - the base body (11) presenting two fixing housings (14) arranged opposite each other on the circumference, as well as
    - a mounting frame (20) with first openings (24) for respectively passing a fixing element (30), which respectively cooperates with one of the fixing housings (14) to fix the mounting frame (20) in the hollow wall box (10),
    characterized by what
    The mounting frame (20) has a recess (23) to accommodate the retaining ear (13), so that the mounting frame (20) rests on a surface of the hollow wall (1) while remaining flush with the same.
    [2]
    Electrical installation system according to claim 1, characterized in that the base body (11) has two fastening elements (15) arranged opposite each other on the circumference for positively fitting fastening of the hollow wall box (10 ) into the opening (2).
    [3]
    Electrical installation system according to one of the preceding claims, characterized in that the fixing housings (14) and the fixing elements (15) are made offset from one another at regular distances on the circumference of the base body (11 ).
    [4]
    Electrical installation system according to one of the preceding claims, characterized in that
    - at least one pair of clamping ears (13) projecting radially outward is joined by molding to the base body (11),
    - the mounting frame (20) has at least one pair of recesses (23) for the respectively housing a pair of fastening ears (13).
    [5]
    5. Electrical installation system according to claim 4, characterized in that the clamping ears (13) are arranged equidistant on the circumference of the base body (11).
    [6]
    Electrical installation system according to one of claims 4 or 5, characterized in that the recesses (23) made in the mounting frame (20) correspond with respect to their number and position to the number and position of the retaining ears ( 13).
    [7]
    Electrical installation system according to one of Claims 4 to 6, characterized in that the fixing housings (14) and the fixing elements (15), on the one hand, as well as the fixing lugs (13), on the other hand On the other hand, some are made offset with respect to the others at regular distances on the circumference of the base body (11).
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    同族专利:
    公开号 | 公开日
    ES2856093B2|2022-01-28|
    EP3886280A1|2021-09-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB592624A|1944-11-28|1947-09-24|Smart And Brown Engineers Ltd|Improvements in or relating to the installation in walls or the like of electrical contact-making apparatus such as switches or wall-sockets|
    GB2310762A|1996-02-29|1997-09-03|Caradon Mk Electric Ltd|An electrical accessory mounting|
    US5828002A|1997-05-27|1998-10-27|Fedun; Wayne|Electrical box support frame|
    ES2536152A1|2015-02-13|2015-05-20|Schneider Electric España, S.A.|Set of box and frame for the installation of electrical or similar elements in hollow walls such as laminated plates or similar |
    DE19618818C2|1996-05-10|2001-04-12|Berker Geb|Socket center piece for rear mounting in a mounting plate|
    CH695972A5|2002-11-06|2006-10-31|Kaiser Gmbh & Co Kg|Hollow wall box for electrotechnical purposes has fastening areas, which are arranged within circumferential curve of box body whereby circumferential curve is formed by outer circumferential contour of box body|
    FR3013914B1|2013-11-22|2015-12-11|Legrand France|APPARATUS SUPPORT COMPRISING A FIXING ACCESSORY FOR FASTENING TO A WALLBOX, ACCESSORY OF GRIFFING, GRIFFING ASSEMBLY AND ELECTRICAL EQUIPMENT THEREFOR|
    FR3014608B1|2013-12-09|2017-08-25|Legrand France|MOUNTING FRAME FOR RECOVERING AN ELECTRICAL BOX IN A WALL AND ASSEMBLY COMPRISING SUCH A MOUNTING FRAME AND AN ELECTRIC BOX|
    法律状态:
    2021-09-27| BA2A| Patent application published|Ref document number: 2856093 Country of ref document: ES Kind code of ref document: A1 Effective date: 20210927 |
    2022-01-28| FG2A| Definitive protection|Ref document number: 2856093 Country of ref document: ES Kind code of ref document: B2 Effective date: 20220128 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES202030248A|ES2856093B2|2020-03-26|2020-03-26|ELECTRICAL INSTALLATION SYSTEM|ES202030248A| ES2856093B2|2020-03-26|2020-03-26|ELECTRICAL INSTALLATION SYSTEM|
    EP21164361.4A| EP3886280A1|2020-03-26|2021-03-23|Electric installation system|
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