An explosion-proof junction box convenient for wiring

Abstract

The utility model discloses an explosion-proof junction box which is convenient for wiring, comprising a box body and a first wiring tube. The top surface of the box body is hinged with a top cover by a hinge, and the top cover is locked with the box body by a fixing piece. The first wiring tube is provided with a plurality of groups and is respectively arranged at two sides of the box body. Two groups of fixing plates which are arranged horizontally up and down are arranged in the first wiring tube, and the surfaces of the fixing plates are all connected with a plurality of balls in a rolling manner. By passing the wiring harness through the second wiring tube and the first wiring tube at both sides of the box body, and by rotating the first threaded rod, the first threaded rod drives the fixing plate to move downward, so that the two sides of the wiring harness are in contact with the rollers on the surfaces of the two groups of fixing plates, so that when the wiring harness is pulled into the box body to move, the wiring harness can drive the balls on the surfaces of the fixing plates to roll when moving in the first wiring tube, so that the wiring harness can move more smoothly in the first wiring tube through the rolling rollers, thereby avoiding abrasion or scratching of the wiring harness.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof junction boxes, and in particular relates to an explosion-proof junction box which is convenient for wiring. Background Art

[0002] An explosion-proof junction box is a highly sealed junction box with a certain explosion-proof grade. Explosion-proof junction boxes are mostly made of materials such as stainless steel, aluminum alloy and cast steel. The larger the box, the higher the cost.

[0003] Some existing relatively small explosion-proof junction boxes facilitate the connection of the wire harness with the wiring terminals inside the box by inserting the cables from both sides of the box body during the wiring operation. However, since the junction box is relatively small, when the wire harness is inserted into the box body through the wiring tubes on both sides of the box body during the wiring operation, the space inside the wiring tubes is relatively compact. After the wire harness passes through the wiring tubes, a certain length of the wire harness needs to be pulled into the box body to facilitate the subsequent connection with the wiring terminals inside the box body. However, in the process of pulling the wire harness to move, since the box body and the wiring tube are made of metal materials such as stainless steel and aluminum alloy, when the wire harness moves in the compact space of the wiring tube, friction is easily generated between the wire harness and the metal wiring tube, which makes it easy for the wire harness to be subjected to certain resistance when being pulled, and the metal wiring tube is easy to cause wear or scratches on the wire harness, thereby affecting the normal use of the wire harness. Utility Model Content

[0004] The utility model aims to provide an explosion-proof junction box which is convenient for wiring, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an explosion-proof junction box that is convenient for wiring, comprising:

[0006] A box body, wherein a top cover is hingedly connected to the top surface of the box body through a hinge, and the top cover is locked with the box body through a fixing piece;

[0007] The first wiring tube is provided with a plurality of groups and respectively arranged on both sides of the box body, the first wiring tube is provided with two groups of fixing plates which are arranged horizontally up and down, and a plurality of balls are rollingly connected on the surfaces of the fixing plates, the top of the upper fixing plate is rotatably connected with a first threaded rod, and the other end of the first threaded rod rotates and passes through the first wiring tube, and the bottom of the lower fixing plate is fixedly connected with the first wiring tube.

[0008] Preferably, a second wiring tube is provided on one side of the first wiring tube, an arc-shaped clamping block is provided in the second wiring tube, a second threaded rod is rotatably connected to the top of the arc-shaped clamping block, and the other end of the second threaded rod rotates through the second wiring tube.

[0009] Preferably, a protective cover is provided inside the second wiring tube and on the bottom surface of the arc-shaped clamping block.

[0010] Preferably, both ends of the top of the fixing plate are fixedly connected with guide rods, and the other end of the guide rods slides through the first wiring tube, so that the moving direction of the fixing plate is guided by the guide rods.

[0011] Preferably, the fixing member comprises a connecting plate and a lock shell, the connecting plate is fixedly connected to the surface of the top cover, the lock shell is fixedly connected to the top surface of the box body, and a plug rod is fixedly connected to the bottom of the connecting plate.

[0012] Preferably, a card slot is provided on the surface of the insertion rod, and a slot is provided on the surface of the lock housing, and the insertion rod is plugged into the slot in a matching manner.

[0013] Preferably, a card rod is slidably connected to one side of the lock shell, and a spring is sleeved on one end of the card rod located outside the lock shell. The two ends of the spring are respectively fixedly connected to the limit block on the surface of the card rod and the lock shell. When the card rod is pulled, the spring is stretched, and when the card rod is released, the spring rebounds to reset the card rod.

[0014] Preferably, the clamping rod is engaged with the clamping slot in a matching manner.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The wire harness is passed through the second wiring tube and the first wiring tube on both sides of the box body. When the wire harness passes between the two sets of fixed plates in the first wiring tube, the first threaded rod is rotated, and the first threaded rod drives the fixed plate to move downward, and contacts the wire harness through the rollers at the bottom of the fixed plate, so that the two sides of the wire harness contact the rollers on the surfaces of the two sets of fixed plates, so that when the wire harness is pulled into the box body, the wire harness can drive the balls on the surfaces of the fixed plates to roll when moving in the first wiring tube, so that the wire harness can move more smoothly in the first wiring tube through the rolling rollers, thereby avoiding wear or scratches on the wire harness.

[0017] (2) After the wire harness passes through the second wiring tube, when the wiring is completed and the wire harness is fixed, the second threaded rod is rotated, and the second threaded rod drives the arc-shaped clamping block to move toward one end close to the wire harness, so that the arc-shaped clamping block contacts the wire harness. Under the action of the continuously rotating second threaded rod, the arc-shaped clamping block clamps the wire harness between the second wiring tubes, thereby fixing the wire harness, enhancing the stability of the wire harness after wiring, and preventing the wire harness from loosening after wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3For this utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0021] In the figure: 1. box body; 2. top cover; 3. fixing piece; 4. first wiring tube; 5. fixing plate; 6. ball bearing; 7. first threaded rod; 8. second wiring tube; 9. arc clamping block; 10. second threaded rod; 11. protective cover; 12. guide rod; 13. connecting plate; 14. lock shell; 15. plug rod; 16. slot; 17. slot; 18. plug rod; 19. spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-3 The explosion-proof junction box shown is convenient for wiring, comprising:

[0024] The box body 1 has a top cover 2 hingedly connected to the top surface of the box body 1 through a hinge, and the top cover 2 is locked with the box body 1 through a fixing member 3.

[0025] The first wiring tube 4 is provided with a plurality of groups and respectively arranged on both sides of the box body 1, the first wiring tube 4 is provided with two groups of fixing plates 5 which are arranged horizontally up and down, and a plurality of balls 6 are rollingly connected on the surfaces of the fixing plates 5, the top of the upper fixing plate 5 is rotatably connected with a first threaded rod 7, and the other end of the first threaded rod 7 rotates and penetrates the first wiring tube 4, and the bottom of the lower fixing plate 5 is fixedly connected to the first wiring tube 4.

[0026] A second wiring tube 8 is provided on one side of the first wiring tube 4, and an arc-shaped clamping block 9 is provided in the second wiring tube 8. The top of the arc-shaped clamping block 9 is rotatably connected to a second threaded rod 10, and the other end of the second threaded rod 10 rotates and penetrates the second wiring tube 8. When the second threaded rod 10 rotates, it drives the arc-shaped clamping block 9 to clamp the wiring harness.

[0027] A protective cover 11 is provided inside the second wiring tube 8 and on the bottom surface of the arc-shaped clamping block 9. The protective cover 11 is made of rubber material to prevent the insulating skin on the surface of the wiring harness from being worn when the arc-shaped clamping block 9 and the second wiring tube 8 clamp the wiring harness.

[0028] Both ends of the top of the fixed plate 5 are fixedly connected with guide rods 12, and the other end of the guide rod 12 slides through the first wiring tube 4. The moving direction of the fixed plate 5 is guided by the guide rods 12 on both sides of the fixed plate 5, thereby enhancing the stability of the movement of the fixed plate 5.

[0029] The fixing member 3 includes a connecting plate 13 and a lock shell 14. The connecting plate 13 is fixedly connected to the surface of the top cover 2, and the lock shell 14 is fixedly connected to the top surface of the box body 1. An insertion rod 15 is fixedly connected to the bottom of the connecting plate 13. When the top cover 2 is flipped over, the insertion rod 15 can be inserted into a slot 17 on the surface of the lock shell 14.

[0030] A slot 16 is provided on the surface of the insertion rod 15, and a slot 17 is provided on the surface of the lock shell 14. The insertion rod 15 is matched and plugged with the slot 17. A clamping rod 18 is slidably connected to one side of the lock shell 14. One end of the clamping rod 18 located outside the lock shell 14 is sleeved with a spring 19. The two ends of the spring 19 are respectively fixedly connected to the limit blocks on the surface of the clamping rod 18 and the lock shell 14. The clamping rod 18 is matched and engaged with the slot 16. When it is necessary to open the sealed box body 1, the clamping rod 18 is moved by pulling the clamping rod 18 to one side, and the clamping rod 18 falls off the engagement with the clamping slot 16 on the surface of the insertion rod 15, thereby breaking away from the fixation of the top cover 2, and flipping the top cover 2 hinged by the hinge, thereby opening the sealed box body 1.

[0031] The explosion-proof junction box convenient for wiring is moved by pulling the clamping rod 18 to one side, and the clamping rod 18 is disengaged from the clamping connection with the clamping groove 16 on the surface of the plug rod 15, thereby breaking away from the fixation of the top cover 2, and flipping the top cover 2 hinged by the hinge to open the sealed box body 1, and passing the wire harness through the second wiring tube 8 and the first wiring tube 4 on both sides of the box body 1. When the wire harness passes through the two sets of fixing plates 5 in the first wiring tube 4, the first threaded rod 7 is rotated, and the first threaded rod 7 drives the fixing plate 5 to move downward. When the fixing plate 5 moves, the guide rods 12 on both sides of the fixing plate 5 are pressed against the fixing plate 5. The moving direction of the fixed plate 5 is guided, thereby enhancing the stability of the movement of the fixed plate 5. When the first threaded rod 7 drives the fixed plate 5 to move toward the wiring harness, the rollers at the bottom of the fixed plate 5 contact the wiring harness, so that the two sides of the wiring harness contact with the rollers on the surfaces of the two groups of fixed plates 5, so that when the wiring harness is pulled from the inside of the box body 1 to move, the wiring harness can drive the balls 6 on the surface of the fixed plate 5 to roll when moving in the first wiring tube 4, so that the rolling rollers make the wiring harness move more smoothly and reduce friction when moving in the first wiring tube 4, avoiding wear or scratches on the wiring harness.

[0032] When the wiring harness passes through the second wiring tube 8 and is fixed, the second threaded rod 10 is rotated, and the second threaded rod 10 drives the arc clamping block 9 to move toward one end close to the wiring harness, so that the arc clamping block 9 comes into contact with the wiring harness. Under the action of the continuously rotating second threaded rod 10, the arc clamping block 9 clamps the wiring harness between the second wiring tube 8, thereby fixing the wiring harness, enhancing the stability of the wiring harness after wiring, and preventing the wiring harness from loosening after wiring.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An explosion-proof junction box that is convenient for wiring, characterized in that: include: A box body (1), wherein a top cover (2) is hingedly connected to the top surface of the box body (1) via a hinge, and the top cover (2) and the box body (1) are locked via a fixing member (3); A first wiring tube (4), wherein the first wiring tube (4) is provided with a plurality of groups and is respectively provided on both sides of the box body (1), wherein two groups of fixing plates (5) are provided in the first wiring tube (4) and are arranged horizontally in an upper and lower direction, and a plurality of balls (6) are rollingly connected to the surfaces of the fixing plates (5), a first threaded rod (7) is rotatably connected to the top of the fixing plate (5) located at the upper part, and the other end of the first threaded rod (7) is rotatably passed through the first wiring tube (4), and a bottom of the fixing plate (5) located at the lower part is fixedly connected to the first wiring tube (4).

2. The explosion-proof junction box for easy wiring according to claim 1, characterized in that: A second wiring tube (8) is provided on one side of the first wiring tube (4), an arc-shaped clamping block (9) is provided inside the second wiring tube (8), a second threaded rod (10) is rotatably connected to the top of the arc-shaped clamping block (9), and the other end of the second threaded rod (10) is rotatably passed through the second wiring tube (8).

3. The explosion-proof junction box for easy wiring according to claim 2, characterized in that: A protective cover (11) is provided inside the second wiring tube (8) and on the bottom surface of the arc-shaped clamping block (9).

4. The explosion-proof junction box for easy wiring according to claim 1, characterized in that: Both ends of the top of the fixing plate (5) are fixedly connected to guide rods (12), and the other end of the guide rod (12) slides through the first wiring tube (4).

5. The explosion-proof junction box for easy wiring according to claim 1, characterized in that: The fixing member (3) comprises a connecting plate (13) and a lock shell (14); the connecting plate (13) is fixedly connected to the surface of the top cover (2); the lock shell (14) is fixedly connected to the top surface of the box body (1); and a plug rod (15) is fixedly connected to the bottom of the connecting plate (13).

6. The explosion-proof junction box for easy wiring according to claim 5, characterized in that: The surface of the insertion rod (15) is provided with a card slot (16), the surface of the lock housing (14) is provided with a slot (17), and the insertion rod (15) and the slot (17) are matched and plugged.

7. The explosion-proof junction box for easy wiring according to claim 6, characterized in that: A clamping rod (18) is slidably connected to one side of the lock housing (14); one end of the clamping rod (18) located outside the lock housing (14) is sleeved with a spring (19); and two ends of the spring (19) are respectively fixedly connected to a limit block on the surface of the clamping rod (18) and the lock housing (14).

8. The explosion-proof junction box for easy wiring according to claim 7, characterized in that: The clamping rod (18) is matched and clamped with the clamping slot (16).

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