A remote explosion-proof terminal box

Abstract

The application relates to the technical field of junction boxes, in particular to a remote explosion-proof junction box which is composed of a junction box body and a junction cover fixedly installed on the junction box body. A junction column is arranged in the middle of the junction box body and is used for being connected with an external cable; a plurality of junction barrels are further fixedly arranged on the junction box body, so that cable access is facilitated and the cables are ensured to be orderly arranged. Each junction barrel is provided with a fixing adjusting device which mainly functions to fix the external cable, so as to prevent the cable from being loosened or falling off in the use process. When the cable needs to be accessed, an operator will first pass the cable through the junction barrel, and then connect the end of the cable to the junction column. After ensuring that the cable is firmly connected with the junction column, the operator will further fix the cable in the junction barrel by adjusting the fixing adjusting device, so as to ensure the stability and safety of the cable in the junction box.

Description

Technical Field

[0001] This application relates to the field of junction box technology, and in particular to a remote explosion-proof junction box. Background Technology

[0002] The primary function of an explosion-proof junction box is to safely connect and branch cables in flammable and explosive environments. Through its unique explosion-proof structure, it can withstand the pressure generated by an internal explosion and prevent the escape of explosion flames and products from the junction box, thereby preventing the spread of the explosion and the occurrence of larger accidents. These junction boxes are widely used in flammable and explosive environments such as petrochemical plants, coal mines, and ships, and are one of the important pieces of equipment for ensuring safe industrial production.

[0003] To ensure that the cable can enter the junction box normally, the conduit connecting the cable to the junction box is larger than the cable itself. Therefore, after the cable is installed, it is easy for it to move in the conduit, resulting in an unstable connection between the cable and the inside of the junction box. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a remote explosion-proof junction box to solve the above-mentioned technical problems.

[0005] The above-mentioned objective of this application is achieved through the following technical solution: a remote explosion-proof junction box, including a junction box body and a junction cover fixedly installed on the junction box body, wherein a terminal post for connecting an external cable is fixedly provided in the middle of the junction box body, and a plurality of junction tubes are fixedly provided on the junction box body, each of which is provided with a fixing and adjusting device for fixing the external cable.

[0006] By adopting the above technical solution, when connecting the cable, the cable is first passed through the junction box and then connected to the terminal block. The cable in the junction box is then fixed by adjusting the fixing device.

[0007] Furthermore, the fixed adjustment device includes a pair of vertical plates slidably connected to the terminal block. An arc groove is provided on the side of the vertical plates that are close to each other, and an adjustment stud is rotatably provided on the side of the vertical plates that are far apart from each other. A rotating nut is rotatably provided on the outside of the terminal block, and the rotating nut and the adjustment stud are threadedly connected.

[0008] By adopting the above technical solution, when fixing the cable, the rotating nuts on both sides are rotated to make the adjusting studs drive the vertical plates to move in the junction box, so that the arc grooves on the vertical plates on both sides can hold the cable, thereby fixing the cable.

[0009] Furthermore, a flexible rubber layer is provided on the arc groove and fixedly connected to the vertical plate.

[0010] By adopting the above technical solution, the flexible rubber layer can ensure that the outside of the cable is not subjected to excessive pressure when adjusting the vertical plate.

[0011] Furthermore, a fixing device is provided on the outside of the rotating nut. The fixing device includes a fixing frame with a circular groove that matches the rotating nut. A connecting flange is fixedly provided at the bottom of the fixing frame, and a groove that matches the connecting flange is provided on the connector.

[0012] By adopting the above technical solution, after adjusting the rotating nut, the connecting flange on the fixed frame is aligned with the groove on the wiring tube for installation. At this time, the rotating nut cannot be adjusted.

[0013] Furthermore, a magnet is fixedly installed at the bottom of the groove, and the connecting flange is made of metal.

[0014] By adopting the above technical solution, the connection between the flange and the groove is further improved by setting the magnet.

[0015] Furthermore, the junction box is equipped with a clamping device for installing cables onto the terminals.

[0016] Furthermore, the clamping device includes a base fixedly connected to the junction box body, a threaded post rotatably disposed on one side of the base, a connecting post rotatably disposed on the other side, an adjusting plate disposed on the base, the adjusting plate being threadedly connected to the threaded post, the connecting post and the adjusting plate being slidably connected, and a knob being fixedly disposed on the upper end of the threaded post.

[0017] By adopting the above technical solution, when installing the cable onto the terminal block, the cable passes between the base and the adjusting plate. After the cable reaches the terminal block, the knob is turned to adjust the threaded post so that the adjusting plate is pressed down to limit the cable. At the same time, if the distance between the cable and the terminal block is too large, the cable can be adjusted by adjusting the knob.

[0018] Furthermore, a flexible plate is fixedly installed on the side of the base and the adjustment plate that are close to each other.

[0019] By adopting the above technical solutions, damage to the cables can be avoided.

[0020] In summary, this application offers the following beneficial technical advantages: The junction box, through its fixed installation of the box body and cover, along with the centrally located terminal post and multiple junction tubes, provides a stable foundation for connecting external cables. The fixing and adjusting device ensures the cable is securely fixed within the junction tubes, preventing potential safety hazards caused by cable loosening or detachment. Furthermore, the remote explosion-proof design effectively prevents explosions caused by cable faults or external ignition sources, further enhancing the overall safety of the equipment. Cables can be easily threaded through the junction tubes and connected to the terminal posts, then secured by adjusting the fixing and adjusting device. This design not only simplifies the cable connection process and reduces operational difficulty but also facilitates subsequent maintenance and inspection. When cable replacement or inspection is required, the cable can be easily released by adjusting the fixing and adjusting device, eliminating the need for complex disassembly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure in the embodiment;

[0022] Figure 2 This is a schematic diagram of the internal structure of the junction box in the embodiment;

[0023] Figure 3 yes Figure 2 Another structural diagram from a different perspective.

[0024] Reference numerals: 1. Junction box body; 10. Junction cover; 2. Junction tube; 21. Adjusting stud; 22. Rotating nut; 23. Vertical plate; 24. Flexible rubber layer; 3. Fixing frame; 31. Connecting flange; 32. Groove; 4. Base; 41. Adjusting plate; 42. Connecting post; 43. Threaded post; 44. Knob; 45. Flexible plate; 5. Terminal post. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] Example, refer to Figure 1 A remote explosion-proof junction box comprises a junction box body 1 and a terminal cover 10 fixedly mounted on the junction box body 1. A terminal post 5 is located in the middle of the junction box body 1 for connecting to external cables. Multiple terminal tubes 2 are also fixed on the junction box body 1 to facilitate cable access and ensure orderly cable arrangement. Each terminal tube 2 is equipped with a fixing and adjusting device, the main function of which is to secure the external cable and prevent it from loosening or falling off during use. When a cable needs to be connected, the operator first passes the cable through the terminal tube 2, and then connects the end of the cable to the terminal post 5. After ensuring a secure connection between the cable and the terminal post 5, the operator further secures the cable in the terminal tube 2 by adjusting the fixing and adjusting device to ensure the stability and safety of the cable within the junction box.

[0027] In this application, the junction box body 1 and the junction cover 10 can be connected by bolts or other means.

[0028] In this embodiment, refer to Figure 2 as well as Figure 3 The fixing and adjusting device includes a pair of vertical plates 23 slidably connected to the junction box 2. An arcuate groove is formed on the side of the vertical plates 23 closest to each other, and an adjusting stud 21 is rotatably mounted on the side of the vertical plates 23 furthest from each other. A rotating nut 22 is rotatably mounted on the outside of the junction box 2, and the rotating nut 22 and the adjusting stud 21 are threadedly connected. When fixing the cable, rotating the rotating nuts 22 on both sides causes the adjusting stud 21 to move the vertical plates 23 within the junction box 2, allowing the arcuate grooves on the vertical plates 23 to engage the cable, thereby fixing the cable in place.

[0029] In this embodiment, a flexible rubber layer 24 is fixedly connected to the vertical plate 23 on the arc groove, and the flexible rubber layer 24 extends to the side of the vertical plate 23 adjacent to it. The flexible rubber layer 24 ensures that the outside of the cable is not subjected to excessive pressure when adjusting the vertical plate 23.

[0030] In this embodiment, a fixing device is provided on the outside of the rotating nut 22. The fixing device includes a fixing frame 3, on which a circular groove matching the rotating nut 22 is opened. A connecting flange 31 is fixedly provided at the bottom of the fixing frame 3, and a groove 32 matching the connecting flange 31 is opened on the terminal block 2. After the rotating nut 22 is adjusted, the connecting flange 31 on the fixing frame 3 is aligned with the groove 32 on the terminal block 2 for installation. At this time, the rotating nut 22 can no longer be adjusted.

[0031] In this embodiment, a magnet is fixedly disposed at the bottom of the groove 32, and the connecting flange 31 is made of metal. The connection between the connecting flange 31 and the groove 32 is further improved by the placement of the magnet.

[0032] In this embodiment, the junction box 1 is equipped with a clamping device for installing cables onto the terminal blocks 5. The clamping device includes a base 4 fixedly connected inside the junction box 1. A threaded post 43 is rotatably mounted on one side of the base 4, and a connecting post 42 is rotatably mounted on the other side. An adjusting plate 41 is mounted on the base 4, threadedly connected to the threaded post 43. The connecting post 42 and the adjusting plate 41 are slidably connected. A knob 44 is fixedly mounted on the upper end of the threaded post 43. When installing the cable onto the terminal block 5, the cable passes between the base 4 and the adjusting plate 41. When the cable reaches the terminal block 5, the knob 44 is rotated to adjust the threaded post 43, causing the adjusting plate 41 to press down, thus limiting the cable. If the distance between the cable and the terminal block 5 is too large, the cable can be adjusted simply by adjusting the knob 44.

[0033] In this embodiment, flexible plates 45 are fixedly installed on the sides of the base 4 and the adjusting plate 41 that are close to each other to avoid damage to the cable.

[0034] Specific implementation process: Pass the external cable through the junction box 2, ensuring that the cable can smoothly reach the terminal 5. When connecting the cable to the terminal 5, ensure that the connection is firm and reliable to avoid loosening or poor contact.

[0035] To secure the cable, a fixing and adjusting device is required. By rotating the rotating nuts 22 on both sides, the adjusting studs 21 can move the vertical plates 23 within the connector 2. When the arc grooves on the vertical plates 23 on both sides engage the cable, the cable is securely fixed. During this process, special attention must be paid to the condition of the flexible rubber layer 24 to ensure that the outer side of the cable is not subjected to excessive pressure, thus protecting the cable's integrity.

[0036] After securing the cable, the rotating nut 22 needs further tightening. Align the connecting flange 31 on the fixing frame 3 with the groove 32 on the junction box 2 and install it. At this point, the rotating nut 22 cannot be adjusted, ensuring a more stable cable fixation. If a magnet is provided at the bottom of the groove 32 and the connecting flange 31 is made of metal, the connection will be even more secure and reliable.

[0037] When installing the cable onto terminal 5, a clamping device is also required. The cable passes between base 4 and adjusting plate 41. Once the cable reaches terminal 5, the threaded post 43 is adjusted by turning knob 44, causing adjusting plate 41 to press down and limit the cable's movement. If the distance between the cable and terminal 5 is too large, simply continue adjusting knob 44 to adjust the cable appropriately. During this process, the condition of flexible plate 45 must also be monitored to avoid damaging the cable.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A remote explosion-proof junction box, characterized in that, Includes a junction box body (1) and a junction box cover (10) fixedly installed on the junction box body (1). A terminal post (5) for connecting external cables is fixedly provided in the middle of the junction box body (1). Multiple terminal tubes (2) are fixedly provided on the junction box body (1). Each terminal tube (2) is provided with a fixing and adjusting device for fixing external cables.

2. The remote explosion-proof junction box according to claim 1, characterized in that, The fixed adjustment device includes a pair of vertical plates (23) slidably connected to the terminal block (2). The vertical plates (23) have an arc groove on the side closer to each other, and an adjustment stud (21) is rotatably provided on the side of the vertical plates (23) away from each other. A rotating nut (22) is rotatably provided on the outside of the terminal block (2). The rotating nut (22) and the adjustment stud (21) are threadedly connected.

3. The remote explosion-proof junction box according to claim 2, characterized in that, A flexible rubber layer (24) is fixedly connected to the vertical plate (23) on the arc groove.

4. The remote explosion-proof junction box according to claim 2, characterized in that, A fixing device is provided on the outside of the rotating nut (22). The fixing device includes a fixing frame (3). A circular groove matching the rotating nut (22) is provided on the fixing frame (3). A connecting flange (31) is fixedly provided at the bottom of the fixing frame (3). A groove (32) matching the connecting flange (31) is provided on the connecting tube (2).

5. A remote explosion-proof junction box according to claim 4, characterized in that, A magnet is fixedly installed at the bottom of the groove (32), and the connecting flange (31) is made of metal.

6. A remote explosion-proof junction box according to claim 5, characterized in that, The junction box (1) is provided with a clamping device for installing cables onto the terminal block (5).

7. A remote explosion-proof junction box according to claim 6, characterized in that, The clamping device includes a base (4) fixedly connected inside the junction box (1). A threaded post (43) is rotatably provided on one side of the base (4), and a connecting post (42) is rotatably provided on the other side. An adjusting plate (41) is provided on the base (4). The adjusting plate (41) is threadedly connected to the threaded post (43). The connecting post (42) and the adjusting plate (41) are slidably connected. A knob (44) is fixedly provided at the upper end of the threaded post (43).

8. A remote explosion-proof junction box according to claim 7, characterized in that, Flexible plates (45) are fixedly installed on the side of the base (4) and the adjusting plate (41) that are close to each other.

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