Explosion-proof junction box with good sealing effect

Abstract

The utility model discloses an explosion-proof junction box with a good sealing effect, which belongs to the field of junction boxes and comprises a box body, two ends of the bottom of an inner cavity of the box body are fixedly connected with supporting clamping plates, the lower ends of two sides of the box body are provided with through holes, and the middle end of the top of the box body is movably connected with a screw rod through a bearing. The threaded part of the screw rod is in threaded connection with a movable plate; according to the utility model, through the arrangement of the through holes, the arrangement of wires connected in the box body is facilitated, through the arrangement of the screw rod, the moving plate, the air guide cylinder, the piston, the vertical rod, the fixed clamping plate and the supporting clamping plate, the effect of effectively clamping and fixing the wires is achieved, and the situation that the wires are loosened due to the stress in the use process is effectively avoided, so that the service life of the wires is prolonged. And meanwhile, under the action of cooperation among an air guide cylinder, a piston and a hollow rubber ring, the space between the electric wire and the through hole can be blocked, and the sealing effect in the whole using process is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of junction boxes, and in particular relates to an explosion-proof junction box with good sealing effect. Background Art

[0002] The junction box is a box used for branching wires. It does not have electrical components such as switches, leakage protectors, etc. It serves as a transition and is easy to maintain. It has a simple structure, and the wires are connected on the inside of the junction box, so that the junction box can protect and connect the wires.

[0003] For example, a Chinese utility model provides "a junction box for conveniently storing wires", and its announcement number is: CN219980359U. The application includes an outer box, an installation component is installed on the outer side of the outer box, and a storage component is installed on the inner side of the outer box. The installation component includes four installation blocks fixedly connected to the outer side of the outer box, and screws are threadedly connected to the front of the installation block. Three connecting holes are opened on the left and right sides of the outer box. The front of the outer box is hinged with a protective door through a hinge, and the top of the protective door is fixedly connected with evenly distributed fixing blocks, and the front of the fixing block and the front of the outer box are threadedly connected. Bolts, the storage assembly includes three storage blocks fixedly connected to the inner side of the outer box, the front of the storage block is provided with a storage groove, and the front of the storage block is fixedly connected with two groups of evenly distributed protection boxes. The junction box for convenient storage of wires can conveniently and neatly store the wires, thereby effectively improving the practicality of the junction box. Although the junction box in the above technology is convenient for storing wires, due to the lack of good sealing protection at the connecting holes on both sides, external dust and moisture are easy to enter the interior during long-term use, which has an adverse effect on the wiring of the wires and cannot meet the use needs of personnel. Utility Model Content

[0004] The utility model aims to provide an explosion-proof junction box with good sealing effect to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof junction box with good sealing effect, comprising a box body, both ends of the bottom of the inner cavity of the box body are fixedly connected with supporting splints, through holes are opened at the lower ends of both sides of the box body, the middle end of the top of the box body is movably connected with a screw through a bearing, the threaded part of the screw is threadedly connected with a movable plate, both sides of the movable plate are fixedly connected with an air guide tube, the upper end of the air guide tube is fixedly connected with a conduit, a hollow rubber ring is fixedly connected between the lower end of the conduit and the surface of the through hole, the lower end of the inner cavity of the air guide tube is movably connected with a piston, the middle end of the bottom of the piston is fixedly connected with a vertical rod, and the bottom of the vertical rod is fixedly connected with a fixed splint.

[0006] By adopting the above scheme, through the setting of the through holes, it is convenient to arrange the wires connected inside the box. Through the setting of the screw, the movable plate, the air guide cylinder, the piston, the vertical rod, the fixed clamp and the supporting clamp, the effect of effectively clamping and fixing the wires is achieved, which effectively prevents the wires from loosening at the connection point due to force during use. At the same time, under the cooperation of the air guide cylinder, the piston and the hollow rubber ring, the wires and the through holes can be sealed, which effectively improves the sealing effect during the overall use process, prevents dust or moisture from entering, and ensures the overall safe and long-term use.

[0007] As a preferred embodiment of an explosion-proof junction box with good sealing effect, both ends of the movable plate are movably connected with sliding rods, and the top of the sliding rod is fixedly connected to the top of the inner cavity of the box.

[0008] By adopting the above solution and setting the slide bar, the purpose of guiding the movable plate is achieved, thereby preventing the movable plate from rotating and tilting during the movement.

[0009] As a preferred embodiment of an explosion-proof junction box with good sealing effect, guide grooves are provided at the upper ends of both sides of the vertical poles, and the upper ends of the guide grooves are movably connected to guide rods, and the surfaces of the guide rods are fixedly connected to the lower end of the inner cavity of the air guide cylinder.

[0010] By adopting the above solution, the purpose of guiding the vertical pole is achieved through the provision of the guide groove and the guide rod, thereby preventing the vertical pole from tilting and rotating during the movement.

[0011] As a preferred embodiment of an explosion-proof junction box with good sealing effect, a sealing ring is fixedly installed on the middle end of the piston, and the surface of the sealing ring is movably connected to the inner cavity of the air guide cylinder.

[0012] By adopting the above scheme and setting the sealing ring, the sealing performance of the contact between the piston and the gas guide cylinder is improved.

[0013] As a preferred embodiment of an explosion-proof junction box with good sealing effect, a support spring is fixedly connected to the top of the piston, and the top of the support spring is fixedly connected to the top of the inner cavity of the air guide cylinder.

[0014] By adopting the above solution and setting the supporting spring, the purpose of supporting the piston is achieved.

[0015] As a preferred embodiment of an explosion-proof junction box with good sealing effect, the left end of the front surface of the box is movably connected to a box door through a hinge, the middle end of the bottom of the box is fixedly installed with a pressure relief valve through a pipeline, and the top of the outer surface of the box is fixedly connected with a mounting plate.

[0016] By adopting the above scheme, the front of the box can be protected by the setting of the box door. The pressure relief valve can effectively relieve the pressure when the pressure inside the box increases, thereby improving the overall explosion-proof effect. The installation plate can facilitate personnel to install and fix the box.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model facilitates the arrangement of wires connected inside the box by setting the through holes. The arrangement of the screw, the movable plate, the air guide cylinder, the piston, the vertical rod, the fixed clamping plate and the supporting clamping plate achieves the effect of effectively clamping and fixing the wires, effectively preventing the wires from loosening at the connection due to force during use. At the same time, under the cooperation of the air guide cylinder, the conduit, the piston and the hollow rubber ring, the wires and the through holes can be blocked, effectively improving the sealing effect during the overall use process, preventing dust or moisture from entering, and ensuring the overall safe and long-term use.

[0019] 2. The utility model achieves the purpose of guiding the movable plate by setting the sliding rod, and avoids the movable plate from rotating and tilting during the movement; achieves the purpose of guiding the vertical rod by setting the guide groove and the guide rod, and avoids the vertical rod from tilting and rotating during the movement; improves the sealing performance of the contact between the piston and the air guide cylinder by setting the sealing ring; achieves the purpose of supporting the piston by setting the supporting spring; facilitates the protection of the front of the box by setting the box door; effectively performs pressure relief operation when the internal pressure of the box increases by setting the pressure relief valve, thereby improving the overall explosion-proof effect; and facilitates personnel to install and fix the box by setting the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 It is a partial cross-sectional structural schematic diagram of the gas guide cylinder of the utility model.

[0023] In the figure: 1. box body; 2. pressure relief valve; 3. supporting splint; 4. box door; 5. fixing splint; 6. air guide cylinder; 7. mounting plate; 8. screw; 9. through hole; 10. hollow rubber ring; 11. moving plate; 12. sliding rod; 13. supporting spring; 14. guide groove; 15. vertical rod; 16. piston; 17. sealing ring; 18. guide rod; 19. conduit. DETAILED DESCRIPTION

[0024] See also Figure 1-3 The utility model provides an explosion-proof junction box with good sealing effect, including a box body 1, both ends of the bottom of the inner cavity of the box body 1 are fixedly connected with supporting clamps 3, the lower ends of both sides of the box body 1 are provided with through holes 9, the middle end of the top of the box body 1 is movably connected with a screw rod 8 through a bearing, the threaded part of the screw rod 8 is threadedly connected with a movable plate 11, both sides of the movable plate 11 are fixedly connected with an air guide tube 6, the upper end of the air guide tube 6 is fixedly connected with a conduit 19, the lower end of the conduit 19 and the surface of the through hole 9 are fixedly connected with a hollow rubber ring 10, the lower end of the inner cavity of the air guide tube 6 is movably connected with a piston 16, the middle end of the bottom of the piston 16 is fixedly connected with a vertical rod 15, and the bottom of the vertical rod 15 is fixedly connected with a piston 16. A fixed clamping plate 5 is connected, and the arrangement of the through hole 9 facilitates the arrangement of the wires connected inside the box body 1. The arrangement of the screw 8, the movable plate 11, the air cylinder 6, the piston 16, the vertical rod 15, the fixed clamping plate 5 and the supporting clamping plate 3 achieves the effect of effectively clamping and fixing the wires, and effectively prevents the wires from loosening at the connection point due to force during use. At the same time, under the cooperation of the air cylinder 6, the conduit 19, the piston 16 and the hollow rubber ring 10, the wires and the through hole 9 can be blocked, which effectively improves the sealing effect during the overall use, prevents dust or moisture from entering, and ensures the overall safe and long-term use.

[0025] See Figure 2 As shown, both ends of the movable plate 11 are movably connected with slide rods 12, and the top of the slide rod 12 is fixedly connected to the top of the inner cavity of the box body 1. Through the setting of the slide rod 12, the purpose of guiding the movable plate 11 is achieved, and the movable plate 11 is prevented from rotating and tilting during the movement.

[0026] See Figure 3 As shown, guide grooves 14 are provided at the upper ends of both sides of the vertical pole 15, and the upper ends of the guide grooves 14 are movably connected with guide rods 18, and the surfaces of the guide rods 18 are fixedly connected to the lower end of the inner cavity of the air guide cylinder 6. By setting the guide grooves 14 and the guide rods 18, the purpose of guiding the vertical pole 15 is achieved, and the vertical pole 15 is prevented from tilting and rotating during the movement.

[0027] See Figure 3 As shown, a sealing ring 17 is fixedly installed at the middle end of the piston 16, and the surface of the sealing ring 17 is movably connected to the inner cavity of the gas cylinder 6. The setting of the sealing ring 17 improves the sealing performance of the contact between the piston 16 and the gas cylinder 6.

[0028] See Figure 2-3 As shown, the top of the piston 16 is fixedly connected with a support spring 13, and the top of the support spring 13 is fixedly connected to the top of the inner cavity of the gas guide cylinder 6. By setting the support spring 13, the purpose of supporting the piston 16 is achieved.

[0029] See Figure 1As shown, the left end of the front surface of the box body 1 is movably connected to a box door 4 through a hinge, the middle end of the bottom of the box body 1 is fixedly installed with a pressure relief valve 2 through a pipeline, and the top of the outer surface of the box body 1 is fixedly connected with a mounting plate 7. The arrangement of the box door 4 facilitates the protection of the front of the box body 1. The arrangement of the pressure relief valve 2 allows effective pressure relief operations to be performed when the internal pressure of the box body 1 increases, thereby improving the overall explosion-proof effect. The arrangement of the mounting plate 7 facilitates personnel to install and fix the box body 1.

[0030] When in use, the arrangement of the through hole 9 makes it convenient to arrange the wires connected inside the box body 1, and the movable plate 11 is driven to move downward by rotating the control screw 8. The movement of the movable plate 11 can drive the air guide cylinder 6, the piston 16, the vertical rod 15 and the fixed clamping plate 5 to move downward, so that the fixed clamping plate 5 and the supporting clamping plate 3 can be in close contact with the two sides of the wire, thereby achieving the effect of effectively clamping and fixing the wires, and effectively preventing the wires from loosening at the connection point due to force during use. At the same time, under the action of the continuous movement of the air guide cylinder 6, the piston 16 can compress the air inside the air guide cylinder 6, so that the air can be input into the hollow rubber ring 10 through the conduit 19. Under the action of the continuous input of air, the volume of the hollow rubber ring 10 expands, and the wire can be blocked from the through hole 9, which effectively improves the sealing effect during the overall use, prevents dust or moisture from entering, and ensures the overall safe and long-term use.

Claims

1. An explosion-proof junction box with good sealing effect, characterized in that: The invention comprises a box body (1), wherein both ends of the bottom of the inner cavity of the box body (1) are fixedly connected with supporting clamps (3), the lower ends of both sides of the box body (1) are provided with through holes (9), the middle end of the top of the box body (1) is movably connected with a screw rod (8) through a bearing, the threaded part of the screw rod (8) is threadedly connected with a movable plate (11), both sides of the movable plate (11) are fixedly connected with an air guide cylinder (6), the upper end of the air guide cylinder (6) is fixedly connected with a conduit (19), a hollow rubber ring (10) is fixedly connected between the lower end of the conduit (19) and the surface of the through hole (9), the lower end of the inner cavity of the air guide cylinder (6) is movably connected with a piston (16), the middle end of the bottom of the piston (16) is fixedly connected with a vertical rod (15), and the bottom of the vertical rod (15) is fixedly connected with a fixed clamp (5).

2. The explosion-proof junction box with good sealing effect according to claim 1, characterized in that: Both ends of the movable plate (11) are movably connected to a sliding rod (12), and the top of the sliding rod (12) is fixedly connected to the top of the inner cavity of the box body (1).

3. The explosion-proof junction box with good sealing effect according to claim 1, characterized in that: The upper ends of both sides of the vertical rod (15) are provided with guide grooves (14), the upper ends of the guide grooves (14) are movably connected with guide rods (18), and the surface of the guide rods (18) is fixedly connected to the lower end of the inner cavity of the air guide cylinder (6).

4. The explosion-proof junction box with good sealing effect according to claim 1, characterized in that: A sealing ring (17) is fixedly mounted on the middle end of the piston (16), and the surface of the sealing ring (17) is movably connected to the inner cavity of the air guide cylinder (6).

5. The explosion-proof junction box with good sealing effect according to claim 1, characterized in that: The top of the piston (16) is fixedly connected to a support spring (13), and the top of the support spring (13) is fixedly connected to the top of the inner cavity of the air guide cylinder (6).

6. The explosion-proof junction box with good sealing effect according to claim 1, characterized in that: The left end of the front surface of the box body (1) is movably connected to a box door (4) via a hinge, a pressure relief valve (2) is fixedly installed at the middle end of the bottom of the box body (1) via a pipeline, and a mounting plate (7) is fixedly connected to the top of the outer surface of the box body (1).

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