An explosion-proof junction box that is easy to operate

Abstract

The utility model belongs to the technical field of explosion-proof junction boxes, and specifically relates to an explosion-proof junction box that is easy to operate, including an explosion-proof box body, the upper end of the explosion-proof box body contacts an explosion-proof box cover, the lower end of the explosion-proof box cover is fixedly connected with a plug rod, the plug rod is slidably connected to the explosion-proof box body, a clamping hole is provided on the surface of the plug rod, a guide plate is slidably connected to the inside of the explosion-proof box body, a clamping ball is fixedly connected to the horizontal part of the guide plate, the clamping ball is slidably connected to the clamping hole, four evenly distributed inlet pipes are fixedly connected to the surface of the explosion-proof box body, and a protective mechanism is arranged inside the inlet pipe. The utility model pulls the explosion-proof box cover upward to drive the plug rod to move, so that the clamping hole squeezes the clamping ball, and under the deformation action of the spring, the clamping ball is finally separated from the clamping hole, so that the operator can quickly remove the explosion-proof box cover and use it for wiring, which is convenient for the operator to operate conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof junction boxes, in particular to an explosion-proof junction box which is easy to operate. Background Art

[0002] As we all know, explosion-proof junction box is a device used for electrical connection and distribution in explosion-proof environment. It has special explosion-proof design and materials, which can effectively prevent accidents caused by dangerous factors such as sparks, arcs and explosions. Explosion-proof junction box is usually used in flammable and explosive places such as petroleum, chemical industry, coal mines, etc., to safely connect and distribute power, signal and control lines of electrical equipment.

[0003] In the utility model patent with the patent authorization announcement number CN220358765U, an explosion-proof junction box is disclosed, including a box body and a cover plate, a connecting piece is provided between the box body and the cover plate, a sealing ring is provided on the cover plate, a sealing groove is provided on the box body, a sealing gasket is provided between the sealing ring and the sealing groove, the shell wall of the box body includes an inner layer, a hollow layer and an outer layer, a one-way air valve is provided on the inner layer, a through hole and a plunger are provided on the outer layer, a pressure gauge and a warning light are provided on the cover plate, by providing the connecting piece, it is convenient to assemble the box body and the cover plate, by providing the sealing ring, the sealing groove and the sealing gasket, the connection sealing of the box body and the cover plate is improved, by providing the pressure gauge and the warning light, it is convenient to monitor and alarm the internal pressure of the box body, by providing the one-way air valve on the inner layer, the internal pressure is relieved to the hollow layer, so as to prevent the internal pressure of the junction box from increasing and causing explosion, and when the pressure in the hollow layer is too large, the plunger on the through hole is squeezed to open the through hole to release the pressure, so that the junction box has an explosion-proof effect.

[0004] However, the existing explosion-proof junction box also has certain shortcomings. The existing explosion-proof junction box mostly uses bolts to fix the box cover and the box body. Since the assembly of the bolts requires the use of professional assembly tools, it is obviously inconvenient for operators to operate and use;

[0005] Secondly, the existing explosion-proof junction boxes mostly simply use wire inlet tubes to pass wires and cables, which can easily cause wire surface wear due to factors such as friction on the inner wall of the wire inlet tube. Utility Model Content

[0006] The utility model aims to provide an explosion-proof junction box that is easy to operate, which solves the problem that the existing explosion-proof junction boxes mostly use bolts to fix the box cover and the box body, and the assembly of the bolts requires the use of professional assembly tools, which is inconvenient for operators to operate and use; and solves the problem that the existing explosion-proof junction boxes mostly simply use inlet pipes to pass wires and cables, etc., which is easy to cause the surface of the wires to be worn due to factors such as friction on the inner wall of the inlet pipe.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof junction box which is easy to operate, comprising an explosion-proof box body, the upper end of the explosion-proof box body contacts an explosion-proof box cover, the lower end of the explosion-proof box cover is fixedly connected with a plug rod, the plug rod is slidably connected to the explosion-proof box body, a clamping hole is provided on the surface of the plug rod, a guide plate is slidably connected to the inside of the explosion-proof box body, a clamping ball is fixedly connected to the horizontal part of the guide plate, the clamping ball is slidably connected to the clamping hole, four evenly distributed inlet pipes are fixedly connected to the surface of the explosion-proof box body, and a protective mechanism is arranged inside the inlet pipe.

[0008] Preferably, four evenly distributed mounting ears are fixedly connected to the surface of the explosion-proof box body, and a bolt is movably connected to the interior of each mounting ear. The explosion-proof junction box can be installed and used by setting the bolts.

[0009] Preferably, the lower end of the insertion rod is fixedly connected with an extrusion head, and the extrusion head is in contact with the explosion-proof box body. Through the provision of the extrusion head, the card ball can be extruded for use, which is convenient for subsequent assembly and use.

[0010] Preferably, a spring 1 is welded to the vertical portion of the guide plate, and the other end of the spring 1 is welded to the explosion-proof box body. Through the provision of the spring 1, the guide plate can be connected for use.

[0011] Preferably, the protection mechanism includes a telescopic rod, each of which is slidably connected to two symmetrically distributed telescopic rods inside the wire inlet tube, each of which is fixedly sleeved with a fixed disk on the outside of the telescopic rod, and a second spring is provided on the outside of each of the telescopic rods, and a jacket is fixedly connected to the end face of each telescopic rod, the jackets are in contact with each other, a friction groove is provided on the surface of the jacket, and two evenly distributed guide rods are fixedly connected to the surface of the jacket away from the friction groove, and each of the guide rods is slidably connected to the wire inlet tube, and the wire is inserted into the explosion-proof box body by pushing the wire through the wire inlet tube. In this process, the jacket pushes the telescopic rod to move under electrical extrusion and drives the fixed disk to move, the second spring is deformed, and the jacket can drive the guide rod to move when it moves, and guide the jacket to ensure the stable movement of the jacket and avoid the problem of jacket deviation. Under the deformation action of the second spring, the jacket can be pushed to always contact with the wire, thereby clamping the wire, and under the action of the friction groove, the clamping effect of the jacket can be improved to avoid the problem of wear on the wire skin.

[0012] Preferably, one end of the second spring is welded to the fixed disk, and the other end of the second spring is welded to the line inlet pipe. Through the provision of the second spring, the fixed disk can be connected for use.

[0013] Preferably, the overall shape of the jacket is semicircular and the jacket is made of rubber. The jacket can be used to clamp wires and the like, and the rubber material has good durability and flexibility.

[0014] Preferably, a plurality of the friction grooves are provided, and the plurality of friction grooves are evenly distributed on the jacket. The friction effect of the jacket can be improved by providing the friction grooves.

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

[0016] 1. The utility model pulls the explosion-proof box cover upward to drive the insertion rod to move, so that the card hole squeezes the card ball, and under the deformation action of the spring, the card ball is finally separated from the card hole, so that the operator can quickly remove the explosion-proof box cover and use the wiring, which is convenient for the operator to operate.

[0017] 2. The utility model pushes the wire through the wire inlet tube. Under the deformation of the second spring, the jacket can be pushed to always contact the wire. In combination with the friction groove, the clamping stability of the jacket can be improved, thereby protecting the wire and avoiding the wear of the wire surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0020] Figure 3 For the utility model Figure 1 A partially cutaway stereogram of

[0021] Figure 4 For the utility model Figure 2 A magnified image of point A;

[0022] Figure 5 For the utility model Figure 3 Enlarged view of point B.

[0023] In the figure: 1. explosion-proof box body; 2. explosion-proof box cover; 3. mounting ear; 4. bolt; 5. plug rod; 6. extrusion head; 7. clamping hole; 8. guide plate; 9. clamping ball; 10. spring 1; 11. inlet pipe; 12. protection mechanism; 121. telescopic rod; 122. fixing plate; 123. spring 2; 124. jacket; 125. friction groove; 126. guide rod. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , an explosion-proof junction box with convenient operation, comprising an explosion-proof box body 1, the upper end of the explosion-proof box body 1 contacts with an explosion-proof box cover 2, four evenly distributed mounting ears 3 are fixedly connected to the surface of the explosion-proof box body 1, and each mounting ear 3 is movably connected with a bolt 4 inside. Through the setting of the bolt 4, the explosion-proof junction box can be installed and used, and the lower end of the explosion-proof box cover 2 is fixedly connected with a plug rod 5, and the plug rod 5 is slidably connected to the explosion-proof box body 1, and the lower end of the plug rod 5 is fixedly connected with an extrusion head 6, and the extrusion head 6 contacts with the explosion-proof box body 1. Through the setting of the extrusion head 6, the card ball 9 can be squeezed and used, which is convenient for subsequent assembly and use, and a card hole 7 is opened on the surface of the plug rod 5, and a guide plate 8 is slidably connected to the inside of the explosion-proof box body 1, and a card ball 9 is fixedly connected to the horizontal part of the guide plate 8. The card hole 7 is slidably connected, and a spring 10 is welded to the vertical part of the guide plate 8, and the other end of the spring 10 is welded to the explosion-proof box body 1. Through the setting of the spring 10, the guide plate 8 can be connected and used. Four evenly distributed inlet pipes 11 are fixedly connected to the surface of the explosion-proof box body 1. By pulling the explosion-proof box cover 2 upward, the insertion rod 5 is driven to move. Under the extrusion of the inner wall of the card hole 7, the card ball 9 can be pushed to move, and then the guide plate 8 is pushed to move. The spring 10 is deformed, and finally the card ball 9 is separated from the card hole 7. Under the action of force, the card ball 9 slides along the surface of the insertion rod 5, and finally the card ball 9 is separated from the insertion rod 5, and the insertion rod 5 is separated from the explosion-proof box body 1, and the explosion-proof box cover 2 can be quickly removed, which is convenient for the operator to operate and use.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 5A protective mechanism 12 is provided inside the inlet pipe 11, and the protective mechanism 12 includes a telescopic rod 121. Two symmetrically distributed telescopic rods 121 are slidably connected inside each inlet pipe 11. A fixed disk 122 is fixedly sleeved on the outer side of each telescopic rod 121. A spring 2 123 is provided on the outer side of each telescopic rod 121. One end of the spring 2 123 is welded to the fixed disk 122, and the other end of the spring 2 123 is welded to the inlet pipe 11. Through the setting of the spring 2 123, the fixed disk 122 can be connected and used. A jacket 124 is fixedly connected to the end face of each telescopic rod 121. The jackets 124 are in contact with each other. The jacket 124 is semicircular as a whole. The jacket 124 is made of rubber. Through the setting of the jacket 124, wires can be clamped, and the rubber material has good durability and flexibility. A friction groove 125 is provided on the surface of the jacket 124. A plurality of friction grooves 125 are provided. The plurality of friction grooves 125 are arranged on the jacket 1 24 is evenly distributed, and the friction effect of the jacket 124 can be improved by setting the friction groove 125. The surface of the jacket 124 away from the friction groove 125 is fixedly connected with two evenly distributed guide rods 126, and each guide rod 126 is slidably connected to the inlet pipe 11. The wire is pushed through the inlet pipe 11 to insert the wire into the explosion-proof box body 1. In this process, the jacket 124 pushes the telescopic rod 121 to move under the electrical extrusion, and drives the fixed plate 122 to move. The spring 123 is deformed, and the guide rod 126 can be driven to move when the jacket 124 moves, and the jacket 124 is guided to ensure the stable movement of the jacket 124 and avoid the deviation problem of the jacket 124. Under the deformation action of the spring 123, the jacket 124 can be pushed to always contact with the wire, so as to clamp the wire, and under the action of the friction groove 125, the clamping effect of the jacket 124 can be improved to avoid the wear problem of the wire skin.

[0027] The specific implementation process of the utility model is as follows: when the explosion-proof junction box with convenient operation needs to be used, the explosion-proof box cover 2 is pulled upward to drive the plug rod 5 to move. Under the pressure of the inner wall of the card hole 7, the card ball 9 can be pushed to move, and then the guide plate 8 can be pushed to move, and the spring 10 is deformed, and finally the card ball 9 is separated from the card hole 7. Under the action of force, the card ball 9 slides along the surface of the plug rod 5, and finally the card ball 9 is separated from the plug rod 5, and the plug rod 5 is separated from the explosion-proof box body 1, and the explosion-proof box cover 2 can be quickly removed, which is convenient for the operator to operate and use;

[0028] The wires are inserted into the explosion-proof box body 1 by pushing the wires through the wire inlet tube 11. During this process, the jacket 124 pushes the telescopic rod 121 to move under electrical extrusion, and drives the fixed plate 122 to move. The spring 123 is deformed, and the jacket 124 can drive the guide rod 126 to move when moving, so as to guide the jacket 124 to ensure the stable movement of the jacket 124 and avoid the deviation of the jacket 124. Under the deformation of the spring 123, the jacket 124 can be pushed to always contact with the wires, so as to clamp the wires. Under the action of the friction groove 125, the clamping effect of the jacket 124 can be improved to avoid the wear of the wire surface.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof junction box that is easy to operate, comprising an explosion-proof box body (1), characterized in that: The upper end of the explosion-proof box body (1) contacts with an explosion-proof box cover (2), the lower end of the explosion-proof box cover (2) is fixedly connected with an insertion rod (5), the insertion rod (5) is slidably connected to the explosion-proof box body (1), a clamping hole (7) is provided on the surface of the insertion rod (5), a guide plate (8) is slidably connected to the inside of the explosion-proof box body (1), a clamping ball (9) is fixedly connected to the horizontal part of the guide plate (8), the clamping ball (9) is slidably connected to the clamping hole (7), four evenly distributed inlet pipes (11) are fixedly connected to the surface of the explosion-proof box body (1), and a protective mechanism (12) is provided inside the inlet pipe (11).

2. The explosion-proof junction box with convenient operation according to claim 1, characterized in that: Four evenly distributed mounting ears (3) are fixedly connected to the surface of the explosion-proof box body (1), and a bolt (4) is movably connected inside each mounting ear (3).

3. The explosion-proof junction box with convenient operation according to claim 1, characterized in that: The lower end of the insertion rod (5) is fixedly connected to an extrusion head (6), and the extrusion head (6) is in contact with the explosion-proof box body (1).

4. The explosion-proof junction box with convenient operation according to claim 1, characterized in that: A spring 1 (10) is welded to the vertical portion of the guide plate (8), and the other end of the spring 1 (10) is welded to the explosion-proof box body (1).

5. The explosion-proof junction box with convenient operation according to claim 1, characterized in that: The protection mechanism (12) comprises a telescopic rod (121), the interior of each of the inlet pipes (11) is slidably connected to two symmetrically distributed telescopic rods (121), the outer side of each of the telescopic rods (121) is fixedly sleeved with a fixed plate (122), the outer side of each of the telescopic rods (121) is provided with a second spring (123), the end surface of each of the telescopic rods (121) is fixedly connected to a jacket (124), the jackets (124) are in contact with each other, a friction groove (125) is provided on the surface of the jacket (124), and two uniformly distributed guide rods (126) are fixedly connected to the surface of the jacket (124) away from the friction groove (125), and each of the guide rods (126) is slidably connected to the inlet pipe (11).

6. The explosion-proof junction box with convenient operation according to claim 5, characterized in that: One end of the second spring (123) is welded to the fixed disk (122), and the other end of the second spring (123) is welded to the inlet pipe (11).

7. The explosion-proof junction box with convenient operation according to claim 5, characterized in that: The jacket (124) is in a semicircular shape as a whole and is made of rubber.

8. The explosion-proof junction box with convenient operation according to claim 5, characterized in that: A plurality of the friction grooves (125) are provided, and the plurality of the friction grooves (125) are evenly distributed on the jacket (124).

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