Dustproof and waterproof elevator outbound box

Abstract

The utility model relates to a dustproof and waterproof elevator call-out box which comprises a box cover and a bottom shell. The bottom shell is provided with a rectangular opening communicated with an inner cavity of the bottom shell, the rectangular opening faces the box cover, and the box cover covers the rectangular opening to form a mounting cavity. Folded edges are horizontally arranged on four outer side walls of the bottom shell at the rectangular opening, and the side walls of every two adjacent folded edges are connected, so that the four folded edges form a sealing convex edge; a first sealing gasket is arranged on the sealing convex edge and covers the whole sealing convex edge, so that when the box cover and the bottom shell are connected in a matched mode, the first sealing gasket is located between the sealing convex edge and the inner side wall of the box cover, and the mounting cavity is sealed. According to the elevator call-out box, the sealing convex edge is arranged, and the first sealing gasket is arranged on the sealing convex edge, so that the sealing area of the sealing surface is increased, the dustproof and waterproof performance of the mounting cavity in the elevator call-out box is further guaranteed, and the service life of electronic components in the elevator call-out box is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to a dustproof and waterproof elevator external call box. Background Technology

[0002] Elevator users can select floors through the elevator control panel, which is equipped with an intercom button and an alarm button. In case of elevator malfunction, users can call and communicate using the intercom button and the alarm button.

[0003] Normally, the base box of the elevator control box and the car wall are fixed together. When the elevator control box is damaged, the car wall needs to be removed, and then the elevator control box needs to be removed for repair. The process of disassembling the car wall is very cumbersome and may damage the car wall, resulting in a long repair time. There are various electrical components inside the elevator control box, and these electrical components may also fail due to water ingress during use, causing the elevator to become unusable. Utility Model Content

[0004] This utility model provides a dustproof and waterproof elevator external call box. By setting a sealing flange and a first sealing gasket on the sealing flange, the sealing area of ​​the sealing surface is increased, further ensuring the dustproof and waterproof performance of its inner installation cavity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dustproof and waterproof elevator external call box, comprising a cover and a bottom shell;

[0007] The bottom shell has a rectangular opening communicating with its inner cavity, and the rectangular opening faces the lid, with the lid covering the rectangular opening to form an installation cavity.

[0008] The bottom shell at the rectangular opening has horizontal folded edges on its four outer side walls, and the side walls of two adjacent folded edges are connected to form a sealing flange.

[0009] The sealing flange is provided with a first sealing gasket, and the first sealing gasket covers the entire sealing flange, so that when the box cover and the bottom shell are connected, the first sealing gasket is located between the sealing flange and the inner wall of the box cover, sealing the mounting cavity.

[0010] Preferably, the lid includes a cover body and a liner, the liner and the bottom shell forming an installation cavity;

[0011] The aforementioned liner is installed on the inner wall of the aforementioned cover, and the outer wall of the aforementioned liner is located outside the aforementioned sealing flange. The aforementioned first sealing gasket is located between the aforementioned sealing flange and the aforementioned liner, and is pressed together by the two.

[0012] Preferably, the system further includes a second sealing gasket, which has an L-shaped structure. One end of the second sealing gasket is connected to the end of the first sealing gasket near the peripheral wall of the liner, and the other end of the second sealing gasket abuts against the inner wall of the cover, so as to enclose the liner located outside the first sealing gasket.

[0013] Preferably, the cover has a side enclosure extending from the periphery of the cover towards the bottom shell, which encloses the sealing flange.

[0014] Preferably, the bottom shell is provided with clamps on the two inner sidewalls distributed along its length, and the liner is provided with retaining springs on the two end sidewalls distributed along its length. The retaining springs are engaged with the clamps to connect the box cover and the bottom shell. The first sealing gasket is located between the sealing flange and the liner and is pressed together by the two.

[0015] Preferably, the liner is riveted with studs, the retaining ring is provided with mounting holes, the retaining ring is installed on the stud through the mounting holes and fixed with nuts;

[0016] The aforementioned clamps are connected to the inner wall of the bottom shell by bolts and nuts.

[0017] Preferably, the inner bottom sidewall of the bottom shell has a wire hole, and the wire hole is sealed with a waterproof connector.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. By setting folded edges at the rectangular opening of the bottom shell, the four folded edges form a sealing convex edge, making the sealing convex edge have a larger area than the outer wall of the bottom shell at the original rectangular opening, thus forming a larger sealing surface area and a better sealing effect.

[0020] 2. The sealing flange provides greater strength to the bottom shell sidewall at the rectangular opening.

[0021] 3. Setting a first sealing gasket on the sealing flange can further enhance the sealing effect. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the box lid and bottom shell in this embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the bottom shell in this embodiment of the present invention;

[0025] Figure 3 This is an overall sectional view of the device in this embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the overall device in this embodiment of the present invention;

[0027] Figure 5 This is an overall cross-sectional view of the device according to another embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Box lid; 11. Lid body; 12. Liner; 13. Side panel; 2. Bottom shell; 21. Rectangular opening; 22. Sealing flange; 221. Folded edge; 3. First sealing gasket; 4. Clamp; 5. Snap ring; 6. Waterproof connector; 7. Second sealing gasket. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] This utility model embodiment provides a dustproof and waterproof elevator external call box, such as Figures 1-4 As shown, it specifically includes a cover 1 and a bottom shell 2, wherein the bottom shell 2 has an inner cavity, and the side wall of the bottom shell 2 facing the cover 1 has a rectangular opening 21 that communicates with the inner cavity. The cover 1 is placed inside the rectangular opening 21 to form a mounting cavity, which is used to mount electronic components such as circuit boards.

[0034] In this embodiment, after the bottom shell 2 and the lid 1 are installed, the outer wall of the bottom shell 2 facing the lid 1 will abut against the inner wall of the lid 1. The gap between the outer wall of the bottom shell 2 and the inner wall of the lid 1 is the key to dust and water prevention. Simply sealing the gap can achieve the purpose of dust and water prevention for the outer shell. However, a sealing gasket can also be installed between the inner wall of the lid 1 and the outer wall of the bottom shell 2 to achieve the purpose of dust and water prevention. However, the existing outer wall of the bottom shell 2 facing the lid 1 is relatively narrow, resulting in a small area that abuts against the sealing gasket. This leads to an insufficient sealing surface for actual sealing and a poor sealing effect. Therefore, in this embodiment, four horizontal folded edges 221 are provided on the four outer walls of the bottom shell 2 at the rectangular opening 21, and the side walls of two adjacent folded edges 221 are integrally connected. The four folded edges 221 are formed into a single sealing flange 22, which surrounds the rectangular opening 21. The sealing flange 22 has an area several times larger than the outer wall of the original rectangular opening 21. Even if the sealing flange 22 directly contacts the inner wall of the lid 1, a good sealing effect can be achieved. In order to better seal the installation cavity, a first sealing gasket 3 is provided on the sealing flange 22, and the first sealing gasket 3 covers the entire sealing flange 22. That is, the area of ​​the first sealing gasket 3 is not less than the area of ​​the sealing flange 22. So when the lid 1 and the bottom shell 2 are connected, the first sealing gasket 3 is located between the sealing flange 22 and the inner wall of the lid 1, and the sealing area of ​​the sealing surface is larger, thereby better sealing the installation cavity.

[0035] Specifically, the cover 1 includes a cover body 11 and a liner 12. The liner 12 is installed on the inner wall of the cover body 11, specifically by adhesive bonding. It serves two purposes: installing electronic components and reinforcing the strength of the cover body 11. After the cover 1 is placed over the rectangular opening 21, the outer wall of the liner 12 is located outside the sealing flange 22, meaning the area of ​​the liner 12 is larger than the combined area of ​​the sealing flange 22 and the rectangular opening 21. This allows the first sealing gasket 3 to be positioned between the sealing flange 22 and the liner 12, sealing the gap between them. Because the liner 12 is more level on the inner wall of the cover 1, the first sealing gasket 3 abuts against the liner 12, and the liner 12 and the sealing flange 22 press together, resulting in a better sealing effect. Of course, both the liner 12 and the cover body 11 have mounting holes for buttons, but this is not the focus of this application and will not be elaborated upon further.

[0036] Of course, in another embodiment, such as Figure 5 As shown, it also includes a second sealing gasket 7, which has an L-shaped structure. One end of the second sealing gasket 7 is connected to the end of the first sealing gasket 3 near the periphery of the liner 12, and the other end abuts against the inner sidewall of the cover 11. This allows the liner 12 located outside the first sealing gasket 3 to be wrapped inside, forming an L-shaped seal, which further enhances the sealing effect.

[0037] Specifically, the cover 11 has a side wall 13 extending towards the bottom shell 2, forming a cavity with an opening. The sealing flange 22 enters the cavity through the opening and carries the first sealing gasket 3 to abut against the liner 12 inside the cavity. The side wall 13 can enhance the strength of the cover 11 and, because the sealing flange 22 is enclosed in the cavity, it can act as a barrier, thus achieving the purpose of blocking dust and water to a certain extent.

[0038] Specifically, the bottom shell 2 has clamps 4 on its two inner sidewalls along its length, and the liner 12 has spring clips 5 on its two end sidewalls along its length, so that the spring clips 5 on the liner 12 are engaged with the clamps 4 on the bottom shell 2, thereby connecting the lid 1 and the bottom shell 2. At this time, the first sealing gasket 3 is located between the sealing flange 22 and the liner 12 and is pressed by the two, which can realize the detachable connection between the bottom shell 2 and the liner 12. Since there are two engagement points, the two engagement points are distributed at both ends of the length of the liner 12, so that the bottom shell 2 and the cover 11 can be connected together more stably. Specifically, studs are riveted to both ends of the sidewalls of the liner 12 along its length. Correspondingly, the retaining spring 5 has mounting holes. The retaining spring 5 is installed on the studs through the mounting holes and fixed with nuts, thus achieving a detachable connection of the retaining spring 5. Similarly, through holes are provided on both inner sidewalls of the clamp 4 and the bottom shell 2 along their length. Bolts pass through the through holes on the inner sidewall of the bottom shell 2 and the through holes on the clamp 4 in sequence, and cooperate with nuts to detachably install the clamp 4 on the inner sidewall of the bottom shell 2. The clamp 4 and retaining spring 5 mentioned above are existing structures; for specific structures, refer to [reference needed]. Figure 1 .

[0039] Specifically, the inner bottom side wall of the bottom shell 2 has a wire hole, and a waterproof connector 6 is installed in the wire hole to seal the external connecting wires, so as to prevent dust and water.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A dustproof and waterproof elevator external call box, characterized in that, Includes the lid and bottom shell; The bottom shell has a rectangular opening communicating with its inner cavity, and the rectangular opening faces the lid, with the lid covering the rectangular opening to form an installation cavity; The bottom shell at the rectangular opening has horizontal folded edges on its four outer side walls, and the side walls of two adjacent folded edges are connected to form a sealing flange. A first sealing gasket is provided on the sealing flange, and the first sealing gasket covers the entire sealing flange, so that when the box cover and the bottom shell are connected, the first sealing gasket is located between the sealing flange and the inner sidewall of the box cover, sealing the mounting cavity.

2. The elevator external call box according to claim 1, characterized in that, The box cover includes a cover body and a liner, the liner and the bottom shell forming an installation cavity; The liner is installed on the inner side wall of the cover, and the outer side wall of the liner is located outside the sealing flange. The first sealing gasket is located between the sealing flange and the liner and is pressed together by the two.

3. The elevator external call box according to claim 2, characterized in that, It also includes a second sealing gasket, which has an L-shaped structure. One end of the second sealing gasket is connected to the end of the first sealing gasket near the peripheral wall of the liner, and the other end of the second sealing gasket abuts against the inner wall of the cover to enclose the liner located outside the first sealing gasket.

4. The elevator external call box according to claim 2, characterized in that, The cover has a side enclosure extending from its periphery toward the bottom shell, which encloses the sealing flange inside.

5. The elevator external call box according to claim 2, characterized in that, The bottom shell is provided with clamps on its two inner sidewalls distributed along its length, and the liner is provided with snap springs on its two end sidewalls distributed along its length. The snap springs are engaged with the clamps to connect the box cover and the bottom shell. The first sealing gasket is located between the sealing flange and the liner and is pressed together by both.

6. The elevator external call box according to claim 5, characterized in that, The liner is riveted with studs, and the snap ring is provided with mounting holes. The snap ring is installed on the studs through the mounting holes and fixed with nuts. The clamp is connected to the inner wall of the bottom shell by bolts and nuts.

7. The elevator external call box according to claim 1, characterized in that, The bottom sidewall of the bottom shell has a wire hole, and the wire hole is sealed with a waterproof connector.

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