An explosion-proof motor terminal box

Abstract

The utility model discloses an anti -explosion motor terminal box relates to motor terminal box technical field, including terminal box body, the one side of terminal box body is connected with the box cover through screw fixedly, the lateral wall fixed mounting of terminal box body has the terminal bolt, the one end of terminal bolt is sleeved with the wire clamp, the wire clamp is located the inside of terminal box body, the side screw thread connection of terminal bolt is close wire clamp and has fixed nut, the bottom fixed connection of wire clamp has external cable, the lateral wall of terminal box body is seted up and has the opening, the terminal box body is located the fixed connection of connecting disc at the opening, in the utility model, through the use of first sealing washer, sealing washer, second sealing washer, improve the sealing property of anti -explosion motor terminal box to can reduce the dust through the gap and enter the inside of terminal box body, reduce the possibility of explosion.

Description

Technical Field

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

[0002] Explosion-proof junction boxes typically feature a cast aluminum alloy shell with a powder-coated surface. Explosion-proof and corrosion-resistant series are made of glass fiber reinforced unsaturated polyester resin molded shells or stainless steel welded shells. Explosion-proof motor junction boxes are required in environments such as those filled with explosive dust or gases.

[0003] Traditional explosion-proof junction boxes often fail to secure and seal the wire inlet, which can lead to leaks and allow dust or gas to enter, potentially causing an explosion. Therefore, to meet market demands, it is essential to develop explosion-proof motor junction boxes that offer excellent sealing performance in both gas and dust explosion-proof environments. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an explosion-proof motor junction box.

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

[0006] An explosion-proof motor junction box includes a junction box body. A cover is fixedly connected to one side of the junction box body by screws. A wiring bolt is fixedly installed on the side wall of the junction box body. A wire clamp is sleeved on one end of the wiring bolt. The wire clamp is located inside the junction box body. A fixing nut is threadedly connected to the side of the wiring bolt near the wire clamp. An external cable is fixedly connected to the bottom of the wire clamp. An opening is provided on the side wall of the junction box body. A connecting plate is fixedly connected to the junction box body at the opening. A cover plate is fixedly installed on the outside of the connecting plate by screws. Two arc-shaped clamps are sleeved inside the connecting plate. The two arc-shaped clamps are symmetrically arranged to form a circular tube. The external cable extends to the outside of the junction box body through the arc-shaped clamps. An external thread is provided on the outer wall of the arc-shaped clamps. A fixing nut is threadedly connected to the outer wall of the arc-shaped clamps.

[0007] Preferably, a first sealing ring is fixedly connected to the inner wall of the box cover, and the other side of the first sealing ring is in contact with the outer wall of the junction box body.

[0008] Preferably, a second sealing ring is fixedly connected to the inner wall of the fixing nut, and the second sealing ring is in contact with the outer wall of the cover plate.

[0009] Preferably, the inner wall of the arc-shaped clamp is provided with a sealing gasket, and the sealing gasket is in contact with the outer wall of the external cable.

[0010] Preferably, grooves are provided on both sides of the outer wall of the connecting plate, a sleeve is placed inside the groove, a return spring is sleeved inside the sleeve, a connecting rod is slidably sleeved inside the sleeve, one end of the connecting rod is in contact with the return spring, and the other end of the connecting rod is fixedly connected to the outer wall of the arc-shaped clamp.

[0011] Preferably, a circular sleeve is fixedly welded inside the junction box body, a guide rod is fixedly connected to the inner wall of the circular sleeve, a conduit is slidably sleeved on the outer wall of the guide rod, and the other end of the conduit is fixedly connected to the outer wall of the arc-shaped clamp.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. In this utility model, the external cable is fixed and clamped by the arc-shaped clamp to prevent the external cable from shaking, and the two arc-shaped clamps are kept to form a circular tube. At this time, the sealing gaskets on the two arc-shaped clamps are in contact, and then the fixing nut is put on to fix the arc-shaped clamp.

[0014] 2. In this utility model, the use of the first sealing ring, the sealing gasket, and the second sealing ring improves the sealing performance of the explosion-proof motor junction box, thereby reducing the amount of dust entering the junction box body through the gap and reducing the possibility of explosion. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an explosion-proof motor junction box according to the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the round sleeve, guide rod, and conduit of an explosion-proof motor junction box according to this utility model.

[0017] Figure 3 This utility model relates to an explosion-proof motor junction box. Figure 2 A schematic diagram of the structure at point A in the middle.

[0018] Figure 4 This is a front view of the connection plate of an explosion-proof motor junction box according to this utility model.

[0019] Figure 5 This is a schematic diagram of the arc-shaped clamping plate of an explosion-proof motor junction box according to the present invention.

[0020] Figure 6 This utility model relates to an explosion-proof motor junction box. Figure 5 Cross-sectional view of BB.

[0021] Figure 7 This is a top view of an explosion-proof motor junction box according to the present invention.

[0022] The following are the labels in the diagram: 1. Junction box body; 2. Box cover; 3. Wiring bolt; 4. Wire clamp; 5. Fixing nut; 6. External cable; 7. First sealing ring; 8. Opening; 9. Connecting plate; 10. Cover plate; 11. Arc-shaped clamp; 12. Groove; 13. Sleeve; 14. Return spring; 15. Connecting rod; 16. Sealing gasket; 17. Fixing nut; 18. Second sealing ring; 20. Round sleeve; 21. Guide rod; 22. Conduit. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 7 As shown:

[0026] An explosion-proof motor junction box includes a junction box body 1. A cover 2 is fixedly connected to one side of the junction box body 1 by screws. A wiring bolt 3 is fixedly installed on the side wall of the junction box body 1. A wire clamp 4 is sleeved on one end of the wiring bolt 3. The wire clamp 4 is located inside the junction box body 1. A fixing nut 5 is threadedly connected to the side of the wiring bolt 3 near the wire clamp 4. An external cable 6 is fixedly connected to the bottom of the wire clamp 4. An opening 8 is opened on the side wall of the junction box body 1. A connecting plate 9 is fixedly connected to the junction box body 1 at the opening 8. A cover plate 10 is fixedly installed on the outside of the connecting plate 9 by screws. An arc-shaped clamp 11 is sleeved inside the connecting plate 9. There are two arc-shaped clamps 11, which are symmetrically arranged to form a circular tube. The external cable 6 extends to the outside of the junction box body 1 through the arc-shaped clamps 11. The outer wall of the arc-shaped clamp 11 is provided with external threads. A fixing nut 17 is threadedly connected to the outer wall of the arc-shaped clamp 11.

[0027] In the above technical solution, the wiring bolt 3 is soldered to the motor cable, and then the junction box body 1 is fixed to the outer wall of the explosion-proof motor with screws. The box cover 2 is removed, and the two arc-shaped clamps 11 are pushed outwards, allowing the external cable to extend into the junction box body 1 through the arc-shaped clamps 11. The fixing nut 5 is removed, and the wire clamp 4 is inserted onto the outside of the wiring bolt 3. Then, the fixing nut 5 is tightened to fix the wire clamp 4. Then, the two arc-shaped clamps 11 are pushed inwards, allowing the external cable to be inserted into the junction box body 1. The external cable 6 is fixedly clamped to prevent it from shaking, and the two arc-shaped clamps 11 are kept in a circular tube. At this time, the sealing gaskets 16 on the two arc-shaped clamps 11 are in contact. Then, the fixing nut 17 is put on to fix the arc-shaped clamps 11. The fixing nut 17 is tightened so that the second sealing ring 18 on the fixing nut 17 is in contact with the outer wall of the cover plate 10. Finally, the box cover 2 is put on and fixed to the outside of the junction box body 1 with screws to complete the installation and wiring.

[0028] The inner wall of the cover 2 is fixedly connected with a first sealing ring 7, and the other side of the first sealing ring 7 is in contact with the outer wall of the junction box body 1.

[0029] In the above technical solution, the use of the first sealing ring 7 improves the sealing between the junction box body 1 and the box cover 2, thereby reducing the possibility of explosion.

[0030] A second sealing ring 18 is fixedly connected to the inner wall of the fixing nut 17, and the second sealing ring 18 is in contact with the outer wall of the cover plate 10.

[0031] In the above technical solution, the use of the second sealing ring 18 improves the sealing performance between the second sealing ring 18 and the cover plate 10, thereby reducing the amount of dust entering the junction box body 1 through the gap between the arc-shaped clamp 11 and the cover plate 10, and reducing the possibility of explosion.

[0032] The inner wall of the arc-shaped clamp 11 is provided with a sealing gasket 16, and the sealing gasket 16 is in contact with the outer wall of the external cable 6.

[0033] In the above technical solution, the use of sealing gasket 16 improves the sealing between arc-shaped clamp 11 and external cable 6, thereby reducing the amount of dust entering the junction box body 1 through the gap between arc-shaped clamp 11 and external cable 6, and reducing the possibility of explosion.

[0034] The outer wall of the connecting plate 9 has grooves 12 on both sides. A sleeve 13 is placed inside the groove 12. A return spring 14 is sleeved inside the sleeve 13. A connecting rod 15 is slidably sleeved inside the sleeve 13. One end of the connecting rod 15 contacts the return spring 14, and the other end of the connecting rod 15 is fixedly connected to the outer wall of the arc-shaped clamp 11. A round sleeve 20 is fixedly welded inside the junction box body 1. A guide rod 21 is fixedly connected to the inner wall of the round sleeve 20. A conduit 22 is slidably sleeved on the outer wall of the guide rod 21. The other end of the conduit 22 is fixedly connected to the outer wall of the arc-shaped clamp 11. The conduit 22 and the guide rod 21 are used to support the arc-shaped clamp 11.

[0035] The specific usage and function of this embodiment are as follows:

[0036] When using this utility model, firstly, the wiring bolt 3 is soldered to the motor cable. Then, the junction box body 1 is fixed to the outer wall of the explosion-proof motor with screws. Remove the box cover 2, push the two arc-shaped clamps 11 outward, and the external cable extends into the junction box body 1 through the arc-shaped clamps 11. Remove the fixing nut 5, put the wire clamp 4 on the outside of the wiring bolt 3, and then tighten the fixing nut 5 to fix the wire clamp 4.

[0037] Then, the two arc-shaped clamps 11 are pushed inward to fix and hold the external cable 6, and the two arc-shaped clamps 11 form a circular tube. At this time, the sealing gaskets 16 on the two arc-shaped clamps 11 are in contact. Then, the fixing nut 17 is put on to fix the arc-shaped clamps 11, and the fixing nut 17 is tightened so that the second sealing ring 18 on the fixing nut 17 is in contact with the outer wall of the cover plate 10.

[0038] Finally, cover the box with the cover 2 and fix the cover 2 to the outside of the junction box body 1 with screws to complete the installation and wiring.

[0039] Please refer to the above structure and process. Figure 1-7 .

[0040] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An explosion-proof motor junction box, comprising a junction box body (1), characterized in that, A cover (2) is fixedly connected to one side of the junction box body (1) by screws. A wiring bolt (3) is fixedly installed on the side wall of the junction box body (1). A wire clamp (4) is sleeved on one end of the wiring bolt (3). The wire clamp (4) is located inside the junction box body (1). A fixing nut (5) is threadedly connected to the side of the wiring bolt (3) near the wire clamp (4). An external cable (6) is fixedly connected to the bottom of the wire clamp (4). An opening (8) is opened on the side wall of the junction box body (1). The junction box body (1) is located in the opening... A connecting plate (9) is fixedly connected at the opening (8). A cover plate (10) is fixedly installed on the outside of the connecting plate (9) by screws. An arc-shaped clamp (11) is sleeved inside the connecting plate (9). There are two arc-shaped clamps (11), which are symmetrically arranged to form a circular tube. The external cable (6) extends through the arc-shaped clamp (11) to the outside of the junction box body (1). The outer wall of the arc-shaped clamp (11) is provided with external threads, and a fixing nut (17) is threaded to the outer wall of the arc-shaped clamp (11).

2. The explosion-proof motor junction box according to claim 1, characterized in that, The inner wall of the cover (2) is fixedly connected to a first sealing ring (7), and the other side of the first sealing ring (7) is in contact with the outer wall of the junction box body (1).

3. The explosion-proof motor junction box according to claim 1, characterized in that, The inner wall of the fixing nut (17) is fixedly connected with a second sealing ring (18), and the second sealing ring (18) is in contact with the outer wall of the cover plate (10).

4. The explosion-proof motor junction box according to claim 1, characterized in that, The inner wall of each arc-shaped clamp (11) is provided with a sealing gasket (16), and the sealing gasket (16) is in contact with the outer wall of the external cable (6).

5. The explosion-proof motor junction box according to claim 1, characterized in that, The outer wall of the connecting plate (9) is provided with grooves (12) on both sides. A sleeve (13) is placed inside the groove (12). A return spring (14) is sleeved inside the sleeve (13). A connecting rod (15) is slidably sleeved inside the sleeve (13). One end of the connecting rod (15) is in contact with the return spring (14), and the other end of the connecting rod (15) is fixedly connected to the outer wall of the arc-shaped clamp (11).

6. The explosion-proof motor junction box according to claim 5, characterized in that, The junction box body (1) is fixedly welded with a round sleeve (20), and a guide rod (21) is fixedly connected to the inner wall of the round sleeve (20). A conduit (22) is slidably sleeved on the outer wall of the guide rod (21), and the other end of the conduit (22) is fixedly connected to the outer wall of the arc-shaped clamp (11).

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