Explosion-proof stainless steel junction box

Abstract

The explosion-proof stainless steel junction box comprises a box body, a wiring cavity is arranged in the box body, a connecting port is arranged at the top of the box body, the connecting port is communicated with the wiring cavity, a cover body is installed on the box body through the connecting port, an internal thread is arranged in the connecting port, a convex block is fixedly connected to the bottom of the surface of the cover body, and the convex block is fixedly connected to the bottom of the surface of the cover body. The outer wall of the protruding block is provided with an external thread, and the external thread is connected with the internal thread in an engaged mode. The bottom of the cover body is provided with the protruding block, and the protruding block is filled with the sponge, so that when the interior of the box body goes wrong, generated chippings can firstly impact the protruding block instead of directly impacting the cover body, the cover body is prevented from being loosened due to impact, and the anti-explosion protection capacity of the box body is improved.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof junction box technology, specifically an explosion-proof stainless steel junction box. Background Technology

[0002] Explosion-proof junction boxes are special power distribution equipment used in various high-risk locations. Compared with civilian junction boxes, they are electrical wiring boxes with explosion-proof functions that have undergone various explosion-proof modifications. Explosion-proof junction boxes are mostly made of die-cast aluminum alloy or welded stainless steel.

[0003] In the prior art, such as the explosion-proof junction box proposed in patent application number "CN201320238645.X", the box cover is directly fixed to the explosion-proof junction box with bolts. When a problem occurs inside the explosion-proof junction box, the generated debris directly impacts the box cover, which may cause the box cover to loosen and affect the sealing performance of the explosion-proof junction box. Summary of the Invention

[0004] The purpose of this utility model is to provide an explosion-proof stainless steel junction box to solve the problem mentioned in the background art, such as the explosion-proof junction box proposed in patent application number "CN201320238645.X", where the box cover is directly fixed to the explosion-proof junction box with bolts. When a problem occurs inside the explosion-proof junction box, the generated debris directly impacts the box cover, which may cause the box cover to loosen and affect the sealing performance of the explosion-proof junction box.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof stainless steel junction box, comprising a box body, a wiring cavity being provided inside the box body, a connection port being provided on the top of the box body and communicating with the wiring cavity, a cover being installed on the box body through the connection port, an internal thread being provided inside the connection port, a protrusion being fixedly connected to the bottom of the surface of the cover, an external thread being provided on the outer wall of the protrusion and engaging with the internal thread.

[0006] Preferably, the protrusion has a filling cavity, which is filled with sponge.

[0007] Preferably, the top surface of the housing is provided with multiple threaded holes at the connection ports and other locations.

[0008] Preferably, the cover surface is provided with a plurality of connecting holes arranged in a ring, and the connecting holes and threaded holes are connected by fasteners.

[0009] Preferably, the protrusion is adapted to the connection port.

[0010] Preferably, two reinforcing ribs are fixedly connected to the top surface of the cover, and the two reinforcing ribs adopt a cross-shaped design.

[0011] Beneficial effects

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0013] By setting protrusions at the bottom of the cover and filling the protrusions with sponge, when a problem occurs inside the box, the debris generated will first impact the protrusions instead of directly impacting the cover, thus preventing the cover from loosening due to impact and improving the explosion-proof protection capability of the box. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the cover of this utility model.

[0017] The correspondence between the labels and component names in the attached figures is as follows:

[0018] 1. Housing; 2. Cover; 11. Connection port; 12. Wiring cavity; 13. Internal thread; 14. Threaded hole;

[0019] 21. Protrusion; 22. External thread; 23. Reinforcing rib; 24. Connecting hole; 25. Filling cavity; 26. Sponge. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "vertical," and "horizontal," 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 the invention 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.

[0022] like Figure 1-3This is a structural schematic diagram of a preferred embodiment of the present invention: an explosion-proof stainless steel junction box. In this embodiment, the explosion-proof stainless steel junction box includes a box body 1, a wiring cavity 12 inside the box body 1, a connection port 11 on the top of the box body 1 communicating with the wiring cavity 12, a cover 2 installed on the box body 1 through the connection port 11, an internal thread 13 inside the connection port 11, and a protrusion 21 fixedly connected to the bottom surface of the cover 2. The design utilizes the protrusion 21 at the bottom of the cover 2 and the internal thread 13 inside the protrusion 21. The filling sponge 26 ensures that when a problem occurs inside the enclosure 1, the resulting debris will first impact the protrusion 21 instead of directly impacting the cover 2, thus preventing the cover 2 from becoming loose due to impact and improving the explosion-proof protection capability of the enclosure 1. The outer wall of the protrusion 21 is provided with an external thread 22, which engages with the internal thread 13. At the same time, the engagement between the external thread 22 and the internal thread 13 enhances the connection between the enclosure 1 and the cover 2, preventing the cover from becoming loose and affecting the sealing performance of the explosion-proof junction box.

[0023] In this embodiment, the protrusion 21 has a filling cavity 25, which is filled with sponge 26. This structural design can effectively prevent debris from impacting the surface of the protrusion 21, thus providing a buffering effect and preventing the cover 2 from becoming loose due to impact.

[0024] In this embodiment, the top surface of the box 1 is provided with multiple threaded holes 14 at the connection port 11, and the surface of the cover 2 is provided with multiple connecting holes 24 arranged in a ring. The connecting holes 24 and the threaded holes 14 are connected by fasteners to realize the connection and fixation between the box 1 and the cover 2. Furthermore, the anti-loosening effect between the cover 2 and the box 1 is enhanced by the cooperation between the connecting holes 24 and the threaded holes 14 and the engagement of the external thread 22 and the internal thread 13.

[0025] In this embodiment, the protrusion 21 is adapted to the connection port 11. This structural design can better improve the connection capability between them.

[0026] In this embodiment, two reinforcing ribs 23 are fixedly connected to the top surface of the cover 2, and the two reinforcing ribs 23 adopt a cross-shaped design. This structure enhances the anti-deformation ability of the cover 2 itself.

[0027] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An explosion-proof stainless steel terminal box, comprising a box body (1), a terminal cavity (12) is formed in the box body (1), a connecting port (11) is formed on the top of the box body (1) and communicates with the terminal cavity (12), and a cover body (2) is installed on the box body (1) through the connecting port (11), characterized in that: The connecting port (11) is internally provided with an internal thread (13), the cover (2) is fixedly connected with a protrusion (21) at the bottom surface, the outer wall of the protrusion (21) is provided with an external thread (22), and the external thread (22) is in meshing connection with the internal thread (13). ​ 2. The explosion-proof stainless steel junction box according to claim 1, characterized in that: The protrusion (21) is internally provided with a filling cavity (25), and the filling cavity (25) is filled with a sponge (26).

3. The explosion-proof stainless steel junction box according to claim 1, wherein: The top surface of the box (1) is provided with a plurality of threaded holes (14) at the connecting port (11).

4. The explosion-proof stainless steel junction box according to claim 1, wherein: The surface of the cover (2) is annularly arranged with a plurality of connecting holes (24), and the connecting holes (24) are connected with the threaded holes (14) through fasteners.

5. The explosion-proof stainless steel junction box according to claim 2, wherein: The protrusion (21) is adapted to the connecting port (11).

6. The explosion-proof stainless steel junction box according to claim 4, wherein: The top surface of the cover (2) is fixedly connected with two reinforcing ribs (23), and the two reinforcing ribs (23) adopt a cross design.

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