An explosion-proof terminal box

Abstract

The utility model provides a kind of explosion-proof terminal box, including box, the box cover connected with box by several screws, nut and the several joints connected in the both sides of box, further include nameplate and dust cover covered on nameplate, the mounting table for installing nameplate is set up on the box cover, connecting post is set in the four corners of mounting table, the connecting hole compatible with connecting post is set in the four corners of nameplate, connecting block is equipped in the four corners of dust cover, the mounting hole compatible with connecting post is set in the connecting block. The utility model can prolong the service life of nameplate, and then can be convenient for operator maintenance, repair.

Description

Technical Field

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

[0002] Explosion-proof junction boxes are special equipment used in various high-risk locations. Compared with civilian junction boxes, they are junction boxes that have undergone various explosion-proof modifications to have explosion-proof functions. They are made of die-cast aluminum alloy or welded stainless steel. Explosion-proof and corrosion-resistant junction boxes are classified as follows: according to function and material form: intrinsically safe explosion-proof junction boxes, aluminum alloy explosion-proof junction boxes, stainless steel explosion-proof junction boxes, and steel plate explosion-proof junction boxes; according to their structure: wall-mounted explosion-proof junction boxes and freestanding explosion-proof junction boxes.

[0003] There is an existing Chinese patent with application number CN201921253213.X and patent name "An Explosion-proof Junction Box", which discloses "An explosion-proof junction box, including a housing (3), characterized in that a plurality of openings on one side of the housing (3) are fixedly provided with a clamping nut assembly (1), a mounting plate (8) is provided in the middle of the bottom end of the housing (3), a second screw hole corresponding to the position is provided on both sides of the inner wall of the bottom end of the housing (3) and the top two sides of the mounting plate (8), a second flat washer (11) is provided at both ends of the top of the mounting plate (8), a second spring washer (10) is provided at the top of the second flat washer (11), a screw (9) is inserted and connected through the second opening in the middle of the second spring washer (10), and one end of the screw (9) passes through the second flat washer." (11) The second opening in the middle is threaded to the second screw hole. The top center of the mounting plate (8) is fixedly provided with a terminal (12). A third screw hole is opened at one corner of the front of the housing (3), and a third flat washer (16) is provided in a corresponding position. A third spring washer (15) is provided on one side of the third flat washer (16). A second bolt (14) is inserted and connected to the third opening in the middle of the third spring washer (15). One end of the second bolt (14) passes through the third opening in the middle of the third flat washer (16) and is threaded to the third screw hole. A nameplate (17) is fixedly provided on one side of the top of the cover (4). The nameplate is exposed to the outside, which is easy to oxidize and accumulate dust, resulting in unclear product parameters on it, which is not convenient for operators to identify, and makes product maintenance or repair inefficient. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide an explosion-proof junction box that can extend the service life of the nameplate and thus facilitate maintenance and repair by operators.

[0005] To address the above problems, the following technical solution is provided: an explosion-proof junction box, including a box body, a box cover connected to the box body by a number of screws and nuts, and a number of connectors connected to both sides of the box body, and also including a nameplate and a dust cover covering the nameplate. The box cover has a raised mounting platform for mounting the nameplate, and each of the four corners of the mounting platform has a connecting post. Each of the four corners of the nameplate has a connecting hole adapted to the connecting post. Each of the four corners of the dust cover has a connecting block, and each connecting block has a mounting hole adapted to the connecting post.

[0006] In the above structure, the dust cover protects the nameplate, preventing dust accumulation or oxidation that could render parameter information unreadable and preventing it from falling off, thus extending its lifespan. This allows operators to quickly read and identify parameters for maintenance or repair, improving the efficiency of this invention. The mounting platform facilitates nameplate installation and identification, enabling operators to quickly locate the nameplate's position. It also works in conjunction with the dust cover to hold the nameplate, improving its stability and the reliability of its protection, thereby enhancing the overall reliability of this invention. The dust cover is fitted onto the nameplate via mounting holes on the connecting block and a connecting post, facilitating its installation and removal, and improving the ease of installation.

[0007] The present invention is further configured such that arc-shaped grooves are provided at the four corners of the mounting platform, the connecting column is located on the arc-shaped grooves, and the nameplate is provided with downward protruding abutment blocks at the four corners that are adapted to the arc-shaped grooves.

[0008] In the above structure, the nameplate can be limited by the cooperation of the abutment block and the arc groove, thereby improving the stability of the nameplate installation and the reliability of this utility model.

[0009] The present invention is further configured such that the top of the abutting block is provided with an abutting groove corresponding to the arc-shaped groove, and the end of the connecting block facing the nameplate is provided with an extension portion adapted to the abutting groove.

[0010] In the above structure, by providing an extension that cooperates with the abutment groove, the tightness of the fit between the dust cover and the nameplate can be further improved, thereby improving the reliability of the dust cover protection.

[0011] The present invention is further provided that a groove is formed on the end face of the dust cover that abuts against the nameplate, and a sealing gasket is installed in the groove.

[0012] The above structure improves the seal between the dust cover and the nameplate, thereby enhancing the protective effect and reliability of the dust cover.

[0013] The present invention is further provided that a sealing groove is formed on the outer circumferential wall of the connecting column.

[0014] In the above structure, by setting a sealing groove, a sealing ring can be fitted in the sealing groove, thereby improving the connection strength between the dust cover and the connecting column and improving the reliability of this utility model.

[0015] The present invention is further configured such that two sealing grooves are spaced apart in the axial direction relative to the connecting column.

[0016] The above structure can further improve the connection strength between the dust cover and the connecting column.

[0017] The present invention is further configured such that the dust cover is transparent.

[0018] The above structure allows operators to directly identify parameters without removing the dust cover, thus improving the convenience of reading nameplate parameters. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram showing the disassembled structure of the nameplate and dust cover in this utility model.

[0021] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0022] Figure 4 This is a schematic diagram of the nameplate and dust cover in this utility model.

[0023] Figure 5 This is a schematic diagram of the dust cover in this utility model.

[0024] The labels in the diagram have the following meanings: 1-Box body; 2-Box cover; 3-Connector; 4-Nameplate; 5-Dust cover; 11-Mounting platform; 111-Connecting column; 41-Connecting hole; 51-Connecting block; 511-Mounting hole; 113-Arc groove; 42-Abutting block; 421-Abutting groove; 512-Extension; 52-Groove; 1111-Sealing groove. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] like Figures 1 to 5 The explosion-proof junction box shown includes a box body 1, a box cover 2 connected to the box body 1 by a number of screws and nuts, and a number of connectors 3 connected to both sides of the box body 1. It also includes a nameplate 4 and a dust cover 5 covering the nameplate 4. The box cover 2 has a raised mounting platform 11 for mounting the nameplate 4. Each of the four corners of the mounting platform 11 has a connecting post 111. Each of the four corners of the nameplate 4 has a connecting hole 41 that matches the connecting post 111. Each of the four corners of the dust cover 5 has a connecting block 51. Each of the connecting blocks 51 has a mounting hole 511 that matches the connecting post 111.

[0028] In the above structure, the dust cover 5 protects the nameplate 4 from dust or oxidation, preventing the parameter information from becoming unreadable and preventing the nameplate 4 from falling off, thus extending its service life. This allows operators to quickly read and identify parameters for maintenance or repair, improving the efficiency of maintenance or repair. The mounting platform 11 facilitates the installation and identification of the nameplate 4, allowing operators to quickly locate its position. It also works with the dust cover 5 to hold the nameplate 4, improving its stability and the reliability of its protection, thereby enhancing the reliability of the invention. The dust cover 5 is fitted onto the nameplate 4 through the mounting hole 511 on the connecting block 51, engaging with the connecting post 111, facilitating its installation and removal and improving the ease of installation.

[0029] In this embodiment, the mounting platform 11 has arc-shaped grooves 113 at each of its four corners, the connecting column 111 is located on the arc-shaped grooves 113, and the nameplate 4 has a downward protruding abutment block 42 at each of its four corners that is adapted to the arc-shaped grooves 113.

[0030] In the above structure, the nameplate 4 can be limited by the cooperation between the abutment block 42 and the arc groove 113, thereby improving the stability of the nameplate 4 installation and improving the reliability of this utility model.

[0031] In this embodiment, the top of the abutting block 42 is provided with an abutting groove 421 corresponding to the arc groove 113, and the end of the connecting block 51 facing the nameplate 4 is provided with an extension portion 512 adapted to the abutting groove 421.

[0032] In the above structure, by providing the extension 512 to cooperate with the abutment groove 421, the tightness of the fit between the dust cover 5 and the nameplate 4 can be further improved, thereby improving the reliability of the dust cover 5 in protection.

[0033] In this embodiment, a groove 52 is provided on the end face of the dust cover 5 that abuts against the nameplate 4, and a sealing gasket is installed in the groove 52.

[0034] By adopting the above structure, the sealing between the dust cover 5 and the nameplate 4 can be improved, thereby improving the protective effect of the dust cover 5 and its reliability.

[0035] In this embodiment, a sealing groove 1111 is provided on the outer circumferential wall of the connecting column 111.

[0036] In the above structure, by setting the sealing groove 1111, a sealing ring can be fitted in the sealing groove 1111, thereby improving the connection strength between the dust cover 5 and the connecting column 111 and improving the reliability of this utility model.

[0037] In this embodiment, two sealing grooves 1111 are provided at intervals in the axial direction relative to the connecting column 111.

[0038] The above structure can further improve the connection strength between the dust cover 5 and the connecting post 111.

[0039] In this embodiment, the dust cover 5 is transparent.

[0040] The above structure allows operators to directly identify parameters without removing the dust cover 5, thus improving the convenience of reading the parameters on the nameplate 4.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. An explosion-proof junction box, comprising a box body, a box cover connected to the box body by a plurality of screws and nuts, and a plurality of connectors connected to both sides of the box body, characterized in that: It also includes a nameplate and a dust cover covering the nameplate. The cover has a raised mounting platform for mounting the nameplate. Each of the four corners of the mounting platform has a connecting post. Each of the four corners of the nameplate has a connecting hole that matches the connecting post. Each of the four corners of the dust cover has a connecting block. Each connecting block has a mounting hole that matches the connecting post.

2. The explosion-proof junction box according to claim 1, characterized in that: The mounting platform has arc-shaped grooves at all four corners, the connecting column is located on the arc-shaped grooves, and the nameplate has downward protruding abutment blocks at all four corners that are adapted to the arc-shaped grooves.

3. The explosion-proof junction box according to claim 2, characterized in that: The top of the abutting block is provided with an abutting groove corresponding to the arc-shaped groove, and the end of the connecting block facing the nameplate is provided with an extension portion that matches the abutting groove.

4. The explosion-proof junction box according to claim 3, characterized in that: A groove is provided on the end face of the dust cover that abuts against the nameplate, and a sealing gasket is installed in the groove.

5. The explosion-proof junction box according to claim 1, characterized in that: A sealing groove is provided on the outer circumferential wall of the connecting column.

6. The explosion-proof junction box according to claim 5, characterized in that: The sealing grooves are provided at intervals in the axial direction relative to the connecting column.

7. The explosion-proof junction box according to claim 1, characterized in that: The dust cover is transparent.

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