Waterproof device of electrical junction box

Abstract

The utility model belongs to the technical field of junction boxes, and particularly relates to a waterproof device of an electrical junction box, which comprises a junction box, a sealing cover is arranged at the top of the junction box, a positioning assembly for limiting the sealing cover is arranged on the junction box, and a clamping groove is fixedly arranged in the junction box. A frame corresponding to the clamping groove is fixedly installed at the bottom of the sealing cover, the bottom end of the frame extends into the clamping groove, and an air bag is arranged in the frame in a surrounding mode. According to the waterproof device of the electrical junction box, the sealing performance of the waterproof device of the electrical junction box can be improved through the installed frame and the installed air bag, the frame extends into the clamping groove, the connecting plate moves, the connecting plate pushes the compression block to move through the driving rod when moving, and the compression block moves to extrude air in the compression groove; and extruded air flows into the air bag through the connecting pipe, so that the volume of the air bag is expanded, the sealing performance of a gap between the junction box and the sealing cover can be improved, the waterproof effect is improved, and the practicability of the waterproof device of the electrical junction box is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of junction box, concretely is a waterproof device of electrical junction box. BACKGROUND

[0002] The electrical junction box is a device for protecting and connecting electrical wires, usually made of durable materials such as plastic or metal, and its main function is to safely connect electrical wires together to prevent short circuits, electrical leakage and other electrical faults, while also protecting electrical wires from external environmental influences, reducing the risk of electrical fires and electric shock, and providing convenient wiring points for cable connection and distribution.

[0003] The existing waterproof device of the electrical junction box can provide basic waterproof function when sealing the edge of the connection box, but still has some limitations in actual application, which may affect its waterproof effect and long-term reliability. If the connection box bottom and the upper cover are not tightly fitted, gaps may be formed, allowing water to seep into the box. In this case, the edge sealing alone cannot achieve effective waterproofing.

[0004] Patent document CN219106988U discloses a junction box, "including a box body, a cover body is arranged on the box body, the box body and the cover body are connected by clamping, the cover body is provided with a wiring part, two groups of wire entry holes and wire exit holes are arranged between the box body and the cover body, the wire entry holes and the wire exit holes are arranged on the side of the wiring part, the originally external power cord is hidden between the box body and the cover body through the two groups of wire entry holes and wire exit holes, and the protective cover is matched to prevent the connected power cord from falling off", but the waterproof device of the electrical junction box in the above-mentioned disclosure mainly considers preventing the connected power cord from falling off, but does not consider the waterproof effect, therefore, it is necessary to research a waterproof device of an electrical junction box. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a waterproof device of an electrical junction box to solve the technical problem of not being convenient to improve the waterproof effect of the electrical junction box in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a waterproof device of an electrical junction box, comprising a junction box, a sealing cover is arranged on the top of the junction box, a positioning assembly for limiting the sealing cover is arranged on the junction box, a clamping groove is fixedly arranged in the junction box, a frame corresponding to the clamping groove is fixedly installed at the bottom of the sealing cover, and the bottom end of the frame extends into the clamping groove, an air bag is arranged around the frame and the clamping groove, a square frame is inlaid in the sealing cover, and an inflating assembly for the air bag is arranged in the square frame.

[0007] Preferably, positioning plates are symmetrically arranged on the junction box, and holes are arranged on the positioning plates.

[0008] Preferably, connecting heads are symmetrically mounted on the junction box, and the connecting heads are communicated with the junction box.

[0009] Preferably, the positioning assembly comprises a threaded cylinder, a positioning bolt and a limiting ring, the threaded cylinder is fixedly mounted on the junction box, the limiting ring is fixedly mounted on the sealing cover and corresponds to the threaded cylinder in a one-to-one manner, and the positioning bolt is threadedly connected with the threaded cylinder through the limiting ring.

[0010] Preferably, a connecting pipe is arranged on the frame, and one end of the connecting pipe is communicated with the air bag.

[0011] Preferably, the inflating assembly comprises a compression groove, a compression block, a driving rod, a reset spring, a connecting plate and a driving assembly, the compression groove is symmetrically mounted in the square frame, the compression block is arranged in the compression groove, the driving rod is fixedly mounted on one side of the compression block and extends out of the compression groove at one end, the connecting plate is fixedly connected with one end of the driving rod, and the reset spring is arranged around the driving rod and fixedly connected with the compression groove.

[0012] Preferably, the driving assembly comprises a driving shaft and a pressure applying block, the driving shaft is rotatably arranged in the square frame and arranged at a central position of the square frame, and the pressure applying block is fixedly mounted on the driving shaft.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The frame and the air bag are installed, the sealing property of the waterproof device of the electrical junction box is improved, the frame extends into the clamping groove, the connecting plate moves, the compression block moves through the driving rod when the connecting plate moves, the air in the compression groove is extruded when the compression block moves, the extruded air flows into the air bag through the connecting pipe, the volume of the air bag is expanded, the sealing property of the gap between the junction box and the sealing cover is improved, the waterproof effect is improved, and the practicality of the waterproof device of the electrical junction box is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a junction box structure schematic view of the utility model;

[0017] Figure 3 It is a clamping groove structure schematic view of the utility model;

[0018] Figure 4 It is a square frame structure schematic view of the utility model.

[0019] In the figure: 1, junction box; 2, positioning plate; 3, connector; 4, threaded cylinder; 5, sealing cover; 6, positioning bolt; 7, clamping groove; 8, frame; 9, air bag; 10, connecting pipe; 11, square frame; 12, drive shaft; 13, pressing block; 14, compression groove; 15, compression block; 16, drive rod; 17, return spring; 18, connecting plate; 19, limiting ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1 to 4 A waterproof device of an electrical junction box, comprising a junction box 1, the junction box 1 is provided with a sealing cover 5 at the top, the junction box 1 is provided with a positioning assembly for limiting the sealing cover 5, the junction box 1 is fixedly provided with a clamping groove 7 inside, the sealing cover 5 is fixedly provided with a frame 8 corresponding to the clamping groove 7 at the bottom, and the bottom end of the frame 8 extends into the clamping groove 7, the frame 8 and the clamping groove 7 are provided with an air bag 9 therearound, the sealing cover 5 is inlaid with a square frame 11 inside, the square frame 11 is provided with an inflation assembly for the air bag 9 inside, the junction box 1 is a waterproof junction box mainly used outdoors or in a humid environment, providing better protection for the line, if the junction box 1 is not tightly fitted between the bottom and the upper cover, a gap may be formed, allowing moisture to penetrate into the box, and when the waterproof device of the electrical junction box is used, the connecting line is connected by being arranged inside the junction box 1, the sealing cover 5 is arranged on the junction box 1, and at the same time the frame 8 extends into the clamping groove 7, so that the gap between the sealing cover 5 and the junction box 1 can be sealed, achieving the purpose of sealing and waterproofing, and at the same time the positioning assembly is used to fixedly connect the sealing cover 5 and the junction box 1, the inflation assembly allows compressed air to enter the air bag 9 inside, so that the volume of the air bag 9 expands, thereby improving the sealing performance of the gap between the junction box 1 and the sealing cover 5, improving the waterproof effect and improving the practicability of the waterproof device of the electrical junction box.

[0022] Please refer to Figure 1 And Figure 2 The junction box 1 is provided with a positioning plate 2 symmetrically, and the positioning plate 2 is provided with a hole, and the junction box 1 can be fixed on the ground by using a bolt through the positioning plate 2.

[0023] Please refer to Figure 1The connecting head 3 is symmetrically arranged on the terminal box 1 and is in communication with the terminal box 1, and external wires can enter the terminal box 1 through the connecting head 3 to be connected.

[0024] Please refer to Figure 1 The positioning assembly comprises a threaded cylinder 4, a positioning bolt 6 and a limiting ring 19. The threaded cylinder 4 is fixedly arranged on the terminal box 1, the limiting ring 19 is fixedly arranged on the sealing cover 5 and corresponds to the threaded cylinder 4, and the positioning bolt 6 is in threaded connection with the threaded cylinder 4 through the limiting ring 19. When the sealing cover 5 is connected with the terminal box 1, the sealing cover 5 is arranged on the terminal box 1, the threaded cylinder 4 corresponds to the limiting ring 19, the positioning bolt 6 passes through the limiting ring 19, the positioning bolt 6 is in threaded connection with the threaded cylinder 4, and then the sealing cover 5 is fixedly connected with the terminal box 1.

[0025] Please refer to Figure 3 and Figure 4 The frame 8 is provided with a connecting pipe 10, one end of the connecting pipe 10 is in communication with the air bag 9, and compressed air flows into the air bag 9 through the connecting pipe 10 to expand the volume of the air bag 9.

[0026] Please refer to Figure 4 The inflating assembly comprises a compression groove 14, a compression block 15, a driving rod 16, a reset spring 17, a connecting plate 18 and a driving assembly. The compression groove 14 is symmetrically arranged in the square frame 11, the compression block 15 is arranged in the compression groove 14, the driving rod 16 is fixedly arranged on one side of the compression block 15 and extends out of the compression groove 14 at one end, the connecting plate 18 is fixedly connected with one end of the driving rod 16, the reset spring 17 is arranged around the driving rod 16 and is fixedly connected with the compression groove 14. The connecting plate 18 is moved by the driving assembly, and the compression block 15 is moved by the driving rod 16 when the connecting plate 18 moves. The compression block 15 moves to extrude the air in the compression groove 14, the extruded air flows into the air bag 9 through the connecting pipe 10 to expand the volume of the air bag 9 and seal it. The reset spring 17 resets the connecting plate 18, which in turn resets the compression block 15. The connecting pipe 10 is provided with a ball valve, the movement of the ball valve is controlled, and the opening and closing state of the connecting pipe 10 is controlled. After the compressed gas enters the air bag 9, the gas leakage is avoided, and the sealing effect is affected.

[0027] Please refer to Figure 1 and Figure 4The driving assembly comprises a driving shaft 12 and a pressing block 13, the driving shaft 12 is rotatably arranged inside the square frame 11 and is arranged at the center position of the square frame 11, the pressing block 13 is fixedly installed on the driving shaft 12, rotating the driving shaft 12 can drive the pressing block 13 to move, when the pressing block 13 moves and contacts the connecting plate 18, the connecting plate 18 is pushed to move, a cross slot is arranged at the top end of the driving shaft 12, cooperating the screwdriver with the cross slot can make the driving shaft 12 rotate, meanwhile, the cross slot corresponds to the position of the pressing block 13, the position of the pressing block 13 can be judged by observing the position of the cross slot.

[0028] The working principle is that first, the line is connected after being arranged in the junction box 1, then the sealing cover 5 is arranged on the junction box 1, at the same time, the frame 8 extends into the clamping groove 7, the gap between the sealing cover 5 and the junction box 1 can be sealed, the waterproof purpose is achieved, when the sealing cover 5 is connected with the junction box 1, after the sealing cover 5 is arranged on the junction box 1, the threaded cylinder 4 corresponds to the limiting ring 19, the positioning bolt 6 passes through the limiting ring 19, the positioning bolt 6 is screwed with the threaded cylinder 4, then the sealing cover 5 is fixedly connected with the junction box 1, rotating the driving shaft 12 can drive the pressing block 13 to move, when the pressing block 13 moves and contacts the connecting plate 18, the connecting plate 18 is pushed to move, when the connecting plate 18 moves, the driving rod 16 pushes the compression block 15 to move, the compression block 15 moves to extrude the air in the compression groove 14, the extruded air flows into the air bag 9 through the connecting pipe 10, the volume of the air bag 9 is expanded, then the sealing property of the gap between the junction box 1 and the sealing cover 5 is improved, the waterproof effect is improved, the practicability of the waterproof device of the electrical junction box is improved.

[0029] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A waterproofing device for an electrical junction box comprising a junction box (1), characterised in that: The sealing cover (5) is arranged on the top of the junction box (1), the junction box (1) is provided with a positioning assembly for limiting the sealing cover (5), the junction box (1) is fixedly provided with a clamping groove (7) inside, the sealing cover (5) is fixedly provided with a frame (8) corresponding to the clamping groove (7) at the bottom, and the bottom end of the frame (8) extends into the clamping groove (7), the frame (8) and the clamping groove (7) are surrounded by an air bag (9), and the sealing cover (5) is inlaid with a square frame (11), and the square frame (11) is provided with an inflation assembly for the air bag (9) inside.

2. A waterproofing device for an electrical junction box according to claim 1, wherein: The positioning plate (2) is symmetrically arranged on the junction box (1), and the positioning plate (2) is provided with a hole.

3. A waterproofing device for an electrical junction box according to claim 2, wherein: The connecting head (3) is symmetrically mounted on the junction box (1), and the connecting head (3) is connected with the junction box (1).

4. A waterproofing device for an electrical junction box according to claim 3, wherein: The positioning assembly comprises a threaded cylinder (4), a positioning bolt (6) and a limiting ring (19), the threaded cylinder (4) is fixedly installed on the junction box (1), the limiting ring (19) is fixedly installed on the sealing cover (5), and corresponds to the threaded cylinder (4), the positioning bolt (6) is threaded connected with the threaded cylinder (4) through the limiting ring (19).

5. A waterproofing device for an electrical junction box according to claim 4, wherein: The connecting pipe (10) is arranged on the frame (8), and one end of the connecting pipe (10) is connected with the air bag (9).

6. A waterproofing device for an electrical junction box according to claim 1, wherein: The inflation assembly comprises a compression groove (14), a compression block (15), a driving rod (16), a reset spring (17), a connecting plate (18) and a driving assembly, the compression groove (14) is symmetrically mounted inside the square frame (11), the compression block (15) is arranged inside the compression groove (14), the driving rod (16) is fixedly installed on one side of the compression block (15), and one end of the driving rod (16) extends out of the compression groove (14), the connecting plate (18) is fixedly connected with one end of the driving rod (16), and the reset spring (17) is arranged on the driving rod (16) and is fixedly connected with the compression groove (14).

7. A waterproofing device for an electrical junction box according to claim 6, wherein: The driving assembly comprises a driving shaft (12) and a pressure applying block (13), the driving shaft (12) is rotatably arranged inside the square frame (11), and the driving shaft (12) is arranged at the center position of the square frame (11), and the pressure applying block (13) is fixedly installed on the driving shaft (12).

Images