A waterproof and dustproof junction box

Abstract

The utility model relates to the technical field of junction box, specifically relates to a dustproof and waterproof junction box, including box body and the box cover of being established at the top of box body, is equipped with the access port for wire to wear into the inside of box body on the box body, is equipped with the plane groove in the box body, is equipped with the plugging assembly for preventing dust and rainwater to enter the inside of box body in the plane groove, the plugging assembly includes the limiting plate of sliding connection in the plane groove, is equipped with the air bag for being able to hold the wire plugging wire and the clearance between access port in the limiting plate, the utility model discloses a plugging assembly can appear when wire and access port exist clearance when wire and wire do not match in junction box, through the rotation of rotation block makes the threaded rod rotate, makes the limiting plate move and lets the air bag gradually adhere to wire and extrude in the middle, to make the air bag can occur gradually and wrap wire, and then make the clearance between wire and access port through the air bag and plug, prevent external dust and rainwater from entering.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a dustproof and waterproof junction box. Background Technology

[0002] In home renovation, junction boxes are one of the electrical accessories. Because the wires used in renovation run through conduits, junction boxes are used as transitions at the joints of the wires (such as when the wire is long or the conduit needs to turn a corner). The conduit connects to the junction box, and the wires inside the conduit are connected in the junction box, which serves to protect and connect the wires. This is what a junction box is.

[0003] When installing junction boxes for outdoor use, a mismatch often occurs between the wires and the junction box's inlets. If the size difference between the two is significant, there will be a large gap between the wires and the inlets on the junction box. Since the outdoor environment is more complex, rainwater, dust, and other impurities may enter the inner cavity of the junction box through the gap, thereby affecting the internal circuitry of the junction box.

[0004] Therefore, a dustproof and waterproof junction box is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a dustproof and waterproof junction box to solve the problem mentioned in the background art that when installing outdoor junction boxes, the wires and the junction box inlets often do not match. If the size difference between the two is large, there will be a large gap between the wires and the junction box inlets. Since the outdoor environment is more complex, rainwater and dust impurities may enter the inner cavity of the junction box through the gap, thereby affecting the internal circuit of the junction box.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dustproof and waterproof junction box, comprising a box body and a box cover disposed at the top of the box body. The box body has an inlet for wires to pass through into the box body, and a flat groove is provided in the box body. The flat groove is provided with a blocking component for preventing dust and rainwater from entering the box body. The blocking component includes a limiting plate slidably connected in the flat groove. The limiting plate is provided with an air bladder for clamping the wire and blocking the gap between the wire and the inlet. A pipe is also fixedly connected to the box body, and a foam sponge for absorbing water is provided in the pipe. The foam sponge is provided with a clamp for shrinking the foam sponge.

[0007] Preferably, a threaded rod is rotatably connected to the box body, the threaded rod is threadedly connected to the limiting plate, and the threaded rod is a bidirectional threaded rod, with a rotating block fixedly connected to the threaded rod.

[0008] Preferably, a push plate is slidably connected to the limiting plate, and a spring is fixedly connected between the push plate and the limiting plate, and the push plate is fixedly connected to the airbag.

[0009] Preferably, the limiting plate is provided with an arc-shaped opening to provide space for the airbag to deform and expand, and one side of the airbag is arc-shaped.

[0010] Preferably, the portion of the foamed sponge located in the pipe is adhered to the inner wall of the pipe, a connecting plate is fixedly connected to the clamp, a guide block is fixedly connected to the pipe, a T-slot is provided on the guide block, the T-slot is adapted to the connecting plate, and the connecting plate is slidably connected in the T-slot.

[0011] Preferably, a convex frame is fixedly connected to the box lid, and a frame groove adapted to the convex frame is provided on the box body.

[0012] Preferably, the lid has a limiting opening, and the frame groove has a sealing ring.

[0013] The beneficial effects of this utility model are: This invention, by incorporating a blocking component, addresses the issue of gaps between the wire and the connector due to mismatch between the junction box and the wire. Rotating the rotating block causes the threaded rod to rotate, moving the limiting plate and gradually pressing the airbag towards the center to adhere to the wire. This causes the airbag to indent and gradually enclose the wire, effectively blocking the gap between the wire and the connector and preventing external dust and rainwater from entering. Furthermore, rotating the clamp compresses and contracts the foam sponge to adhere to the wire, further enhancing the junction box's waterproof effect through the foam sponge's absorbency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of a dustproof and waterproof junction box according to an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the junction box body of a dustproof and waterproof junction box according to an embodiment of the present utility model; Figure 3 This invention relates to a dustproof and waterproof junction box. Figure 2 Enlarged structural diagram at point A in the middle; Figure 4This is a schematic diagram of the cover structure of a dustproof and waterproof junction box according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the airbag structure of a dustproof and waterproof junction box according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the pipe structure of a dustproof and waterproof junction box according to an embodiment of the present invention.

[0016] The markings in the diagram are as follows: 1. Box body; 2. Box cover; 3. Inlet; 4. Flat groove; 5. Limiting plate; 6. Airbag; 7. Pipe; 8. Foam sponge; 9. Clamp; 10. Threaded rod; 11. Rotating block; 12. Push plate; 13. Spring; 14. Arc opening; 15. Connecting plate; 16. Guide block; 17. T-slot; 18. Convex frame; 19. Frame groove; 20. Limiting port. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] like Figures 1 to 6As shown in the figure, a specific embodiment of this utility model provides a dustproof and waterproof junction box, including a box body 1 and a box cover 2 located at the top of the box body 1. The box body 1 has an inlet 3 for wires to pass through into the box body 1. When in use, the junction box connects external wires to the inside of the junction box through the inlet 3. The box body 1 has a flat groove 4; the flat groove 4 is provided with a blocking component to prevent dust and rainwater from entering the box body 1. Since it is difficult to match the wires of the exact size of the inlet 3 during the installation of the junction box, there is a gap between the two. Therefore, the anti-clogging component is provided. The components ensure that after the junction box is installed and used in the outside environment, dust, impurities, and rainwater will not enter the interior of the junction box through the gap between the wire and the inlet 3 and affect the normal use of the junction box. The blocking component includes a limiting plate 5 that is slidably connected in the flat groove 4. The limiting plate 5 is provided with an airbag 6 that can clamp the wire and block the gap between the wire and the inlet 3. A pipe 7 is also fixedly connected to the box body 1, and a foam sponge 8 for absorbing water is provided in the pipe 7. The foam sponge 8 is provided with a clamp 9 for shrinking the foam sponge 8.

[0020] like Figures 1 to 6As shown, specifically, during installation and use, the external wire passes through the inlet 3 and enters the interior of the junction box. Inside, it connects with other wires or terminals. A threaded rod 10 is rotatably connected to the box body 1, and the threaded rod 10 is threadedly connected to the limiting plate 5. The threaded rod 10 is a bidirectional threaded rod, and a rotating block 11 is fixedly connected to the threaded rod 10. When there is a gap between the wire and the inlet 3, rotating the rotating block 11 causes the threaded rod 10 to rotate, thereby causing the limiting plate 5 to move towards the center in the plane groove 4. The airbag 6 in the limiting plate 5 gradually moves closer to the wire in the middle. As the airbag 6 gradually adheres to the wire and squeezes it, the airbag 6 gradually deforms under the squeezing force. That is, the airbags 6 in the two limiting plates 5 gradually adhere to and wrap around the wire in the middle, so that the gap between the wire and the inlet 3 is blocked under the wrapping of the airbag 6, thereby preventing rainwater, dust, etc. from entering the interior of the junction box through the gap. A push plate 12 is slidably connected to the limiting plate 5, and... A spring 13 is fixedly connected between the push plate 12 and the limiting plate 5. The push plate 12 is also fixedly connected to the airbag 6. The limiting plate 5 has an arc-shaped opening 14 to provide space for the airbag 6 to deform and expand. One side of the airbag 6 is arc-shaped. As the limiting plate 5 gradually moves closer to the center, i.e., as the airbag 6 gradually wraps the wire, the spring 13 will overcome the reaction force generated when the airbag 6 is concave and wraps the wire. After the airbag 6 has finished wrapping the wire, as the limiting plate 5 continues to move closer to the center, i.e., the two airbags 6 continue to move and squeeze each other to generate a greater reaction force, the spring 13 provides a buffering effect on the force. The airbag 6 squeezes the push plate 12, causing the spring 13 to contract under force, thereby preventing the airbag 6 from exploding and rupturing when the two limiting plates 5 move closer and stick together after the airbag 6 has finished wrapping the wire and the airbags 6 continue to squeeze each other to generate a greater force. The arc-shaped opening 14 provides space for the airbag 6 to deform and expand when wrapping the wire.

[0021] like Figures 1 to 6As shown, specifically, the portion of the foamed sponge 8 located within the pipe 7 is adhered to the inner wall of the pipe 7. A connecting plate 15 is fixedly connected to the clamp 9, and a guide block 16 is fixedly connected to the pipe 7. The guide block 16 has a T-slot 17, which is adapted to the connecting plate 15, and the connecting plate 15 is slidably connected in the T-slot 17. After the wire passes through the inlet 3, it passes through the foamed sponge 8 in the pipe 7. At this time, rotating the clamp 9 causes the clamp 9 to gradually contract, thereby causing the foamed sponge 8 to gradually contract along with it under the contraction action of the clamp 9. Because the foamed sponge 8 has a certain shrinkage and extension capacity, thus... Under the action of clamp 9, the wire gradually deforms and shrinks to wrap around it. As clamp 9 gradually shrinks, connecting plate 15 moves downward in T-groove 17 on guide block 16 to cooperate with the shrinkage of clamp 9. At this time, the part of foam sponge 8 in pipe 7 is attached to the inner wall of pipe 7, and the part of foam sponge 8 on the outside of pipe 7 wraps the wire under the shrinkage of clamp 9. Thus, the foam sponge 8 set between the wire and pipe 7 further enhances the waterproof effect of junction box. Through the water absorption of foam sponge 8 itself, rainwater and water vapor are prevented from entering.

[0022] like Figures 1 to 6 As shown, a convex frame 18 is fixedly connected to the cover 2, and a frame groove 19 adapted to the convex frame 18 is provided on the body 1. The cover 2 is provided with a limiting port 20, and a sealing ring is provided in the frame groove 19. After the wires are installed and the dust and water are prevented between the wires and the junction box, the cover 2 is fastened to the body 1, so that the convex frame 18 on the cover 2 enters the frame groove 19. The cooperation between the convex frame 18 and the frame groove 19 provides waterproof and dustproof protection between the cover 2 and the body 1, preventing external rainwater from entering the junction box through the connection between the cover 2 and the body 1. The sealing ring is used to enhance the waterproof and dustproof effect, and the limiting port 20 allows the rotating block 11 to be located in the limiting port 20. The limiting port 20 prevents the rotating block 11 from rotating freely after the cover 2 is installed, so that the rotating block 11 will not be able to rotate freely when the junction box is in use, thus preventing the rotating block 11 from affecting the activity of the airbag 6 inside the junction box.

[0023] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0024] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dustproof and waterproof junction box, comprising a box body (1) and a box cover (2) disposed at the top of the box body (1), characterized in that, The box (1) has an inlet (3) for wires to pass through into the box (1), and the box (1) has a flat groove (4). The flat groove (4) is provided with a blocking component to prevent dust and rainwater from entering the box (1). The blocking component includes a limiting plate (5) slidably connected in the flat groove (4). The limiting plate (5) is provided with an airbag (6) for clamping the wire and blocking the gap between the wire and the inlet (3). The box (1) is also fixedly connected with a pipe (7), and the pipe (7) is provided with a foam sponge (8) for absorbing water. The foam sponge (8) is provided with a clamp (9) for shrinking the foam sponge (8).

2. The dustproof and waterproof junction box according to claim 1, characterized in that, A threaded rod (10) is rotatably connected in the box (1). The threaded rod (10) is threadedly connected to the limiting plate (5), and the threaded rod (10) is a bidirectional threaded rod. A rotating block (11) is fixedly connected to the threaded rod (10).

3. A dustproof and waterproof junction box according to claim 1, characterized in that, A push plate (12) is slidably connected in the limiting plate (5), and a spring (13) is fixedly connected between the push plate (12) and the limiting plate (5). The push plate (12) is fixedly connected to the airbag (6).

4. A dustproof and waterproof junction box according to claim 1, characterized in that, The limiting plate (5) is provided with an arc-shaped opening (14) for providing space for the airbag (6) to deform and expand, and one side of the airbag (6) is arc-shaped.

5. A dustproof and waterproof junction box according to claim 1, characterized in that, The foamed sponge (8) located in the pipe (7) is bonded to the inner wall of the pipe (7). A connecting plate (15) is fixedly connected to the clamp (9). A guide block (16) is fixedly connected to the pipe (7). A T-groove (17) is provided on the guide block (16). The T-groove (17) is adapted to the connecting plate (15), and the connecting plate (15) is slidably connected in the T-groove (17).

6. A dustproof and waterproof junction box according to claim 1, characterized in that, A convex frame (18) is fixedly connected to the lid (2), and a frame groove (19) adapted to the convex frame (18) is provided on the body (1).

7. A dustproof and waterproof junction box according to claim 6, characterized in that, The lid (2) is provided with a limiting opening (20), and the frame groove (19) is provided with a sealing ring.

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