Waterproof cable junction box

Abstract

The utility model discloses a waterproof cable junction box, which comprises a junction box body and an upper cover arranged at the top of the junction box body, two ends of the junction box body and the upper cover respectively clamp two mutually connected cables, a closed space for accommodating cable joints is formed between the junction box body and the upper cover, and a drying agent is arranged in the closed space. A sealing strip is arranged between the side wall of the junction box body and the upper cover, a limiting block is arranged on the outer side of each end of the upper cover and the junction box body, the two limiting blocks located at the same end of the upper cover and the junction box body are fixedly connected and clamp a cable at the same end, and a sealing ring is arranged between each limiting block and the clamped cable. According to the utility model, the drying agent is arranged in the junction box body while the cable joints in the junction box body are sealed, so that a small amount of water can be absorbed by the drying agent even if the water can permeate into the junction box body, and a short-circuit fault cannot be caused, thereby effectively improving the reliability of cable power supply and ensuring the normal operation of an electronic product.

Description

Technical Field

[0001] The utility model relates to a novel waterproof cable junction box, belonging to the technical field of cable or wire installation. Background Art

[0002] As people's living standards continue to improve, electronic products are used more and more widely. The power required by electronic products is provided by cables. Since power supply lines are generally long, multiple cables need to be connected together through junction boxes when laying cables to ensure that the adjacent cables are firmly connected and to prevent water from entering the connection parts, causing cable short circuits and affecting the normal transmission of power. However, due to the unreasonable structure of existing junction boxes, short circuit faults often occur due to water infiltration, and the cable connection is not firm enough, so it is easy to fall off from the junction box when stressed, reducing the power supply reliability of the cable. Utility Model Content

[0003] The utility model aims to provide a waterproof cable junction box to improve the power supply reliability of the cable and ensure the normal operation of electronic products in view of the drawbacks of the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A waterproof cable junction box comprises a junction box body and an upper cover arranged on the top of the junction box body, the two ends of which respectively clamp two cables connected to each other, and a closed space for accommodating cable joints is formed in the middle, and a desiccant is arranged inside the closed space, a sealing strip is arranged between the side wall of the junction box body and the upper cover, and a limit block is arranged on the outside of each end of the upper cover and the junction box body, and the two limit blocks located at the same end of the upper cover and the junction box body are fixedly connected and clamp the cable at that end, and a sealing ring is arranged between the limit block and the clamped cable.

[0006] The above-mentioned waterproof cable junction box has a cable fixing device inside the junction box body, and the cable fixing device includes four clamping mechanisms, which are respectively located at the four corners of the inner wall at the bottom of the junction box body. Each clamping mechanism includes a support block, a screw and a clamping block. The support block is fixed to the bottom of the junction box body. The screw is screwed into the horizontal threaded hole on the support block and is opposite to the cable in the junction box body. The end of the screw opposite to the cable is rotatably connected to the clamping block through a clamping block.

[0007] In the waterproof cable junction box, the desiccant is divided into two storage chambers, which are fixed on the inner wall of the bottom of the junction box body and are respectively located on both sides of the cable connector, and each storage chamber is provided with a plurality of water absorption holes.

[0008] In the waterproof cable junction box, a rubber pad is fixedly connected to the side of the pressing block opposite to the cable, and a side of the rubber pad opposite to the cable is a curved surface matching the outer surface of the cable.

[0009] In the waterproof cable junction box, each limit block is provided with a semi-cylindrical clamping groove matching the outer surface shape of the cable, and connecting blocks are provided on both sides of the limit block. The upper cover and the connecting blocks on both sides of the two limit blocks at the same end of the junction box body are connected by fixing bolts.

[0010] In the waterproof cable junction box, the sealing strip is arranged on the junction box body, and the upper cover is provided with a sealing groove matching the sealing strip.

[0011] In the waterproof cable junction box, a clamping groove corresponding to the sealing ring is provided on the inner wall of the semi-cylindrical clamping groove of the limiting block.

[0012] The waterproof cable junction box has four sealing rings, and two sealing rings are mounted on the cables clamped by the upper cover and each end of the junction box body.

[0013] In the waterproof cable junction box, the upper cover and the cable clamping positions at both ends of the junction box body are provided with semi-cylindrical grooves, and the diameter of the grooves is equal to the outer diameter of the cable.

[0014] The utility model not only seals the cable joint in the junction box body, but also arranges a desiccant in the junction box body. Even if a small amount of moisture can penetrate, it will be absorbed by the desiccant and will not cause a short circuit fault, thereby effectively improving the reliability of the cable power supply and ensuring the normal operation of the electronic products.

[0015] The cable fixing device composed of four clamping mechanisms is used to securely fix the cable to prevent the connection part from loosening or directly falling off from the junction box when subjected to external tension, thereby further improving the reliability of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is an exploded view of the utility model;

[0018] Figure 2 It is an overall schematic diagram of the utility model;

[0019] Figure 3 for Figure 1 Bottom view of the middle upper cover;

[0020] Figure 4 for Figure 1 Exploded view of the middle clamping mechanism;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the middle storage chamber;

[0022] Figure 6 for Figure 1 Schematic diagram of the cable structure.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Upper cover; 101. Sealing groove; 2. Limit block; 201. Card slot; 3. Connection block; 301. Fixing bolt; 302. Screw hole; 4. Junction box body; 401. Sealing strip; 5. Clamping mechanism; 501. Rubber pad; 502. Clamping block; 503. Card block; 504. Support block; 505. Screw; 6. Storage chamber; 601. Water absorption hole; 7. Cable; 701. Sealing ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0026] See also Figure 1 , Figure 2 , Figure 4 and Figure 6The utility model comprises a junction box body 4 and an upper cover 1 arranged above the junction box body 4. The upper cover 1 cooperates with the junction box body 4 to form a closed environment to protect the connection position of the cable 7. The bottom inner wall of the junction box body 4 is provided with a clamping mechanism 5 and a storage chamber 6. The clamping mechanism 5 is used to fix the part of the cable 7 located in the junction box body 4. The storage chamber 6 stores a desiccant. When the junction box is opened for wiring, moisture in the air enters the interior of the box body and is absorbed by the desiccant in the storage chamber 6. A sealing strip 401 is fixedly connected to the upper surface of the junction box body 4. When the upper cover 1 is connected to the junction box body 4, the sealing strip 401 is completely snapped into the sealing groove 101 opened on the upper cover 1 to seal the gap at the contact position between the upper cover 1 and the junction box body 4. The front and rear surfaces of the upper cover 1 and the junction box body 4 are fixedly connected with the limiting blocks 2, which increases the contact area between the upper cover 1 and the junction box body 4 and the cable 7, so that the junction box will not slide on the cable 7. , and it is convenient to set a sealing ring 701 to seal the contact part between the cable 7 and the upper cover 1 and the junction box body 4. The outer surface of the cable 7 between the cover 1 and the junction box body 4 is covered with a sealing ring 701, which cooperates with the card slot 201 opened on the limit block 2 to seal the gap between the cable 7 and the limit block 2; the clamping mechanism 5 includes a support block 504, and a screw 505 is threadedly connected to the support block 504. One end of the screw 505 is rotatably connected to the clamping block 502 through the clamping block 503 , the surface of the clamping block 502 away from the screw rod 505 is fixedly connected with the rubber pad 501. After completing the wiring between the cables 7, adjust the position of the cable 7 in the junction box body 4, rotate the screw rod 505 clockwise, and the screw rod 505 moves toward the middle of the junction box body 4 on the support block 504, and pushes the rubber pad 501 toward the middle of the junction box body 4 through the clamping block 502, so that the rubber pad 501 contacts the outer surface of the cable 7, and fixes the part of the cable 7 located inside the junction box body 4.

[0027] Among them Figure 1-3As shown, the upper cover 1 and the limit blocks 2 on the junction box body 4 are arranged in a one-to-one correspondence to ensure the firmness of the cable 7. The left and right sides of the limit blocks 2 are fixedly connected with connection blocks 3 to facilitate the connection between the upper cover 1 and the junction box body 4. The upper cover 1 and the connection blocks 3 arranged on the upper limit blocks 2 of the junction box body 4 are fixedly connected by fixing bolts 301. The connection using the fixing bolts 301 facilitates the disassembly of the junction box and the inspection of the connection part of the cable 7. The fixing bolts 301 are provided with screw holes 302 at the positions on the connection blocks 3 corresponding to the positions of the fixing bolts 301. The setting of the screw hole 302 facilitates the use of the fixing bolt 301. A slot 201 is provided on the inner wall of the limit block 2. The slot 201 is used to clamp the sealing ring 701, increase the contact area between the limit block 2 and the sealing ring 701, and improve the sealing effect of the junction box. The slot 201 and the sealing ring 701 cooperate with each other. The inner diameter of the limit block 2 is equal to the outer diameter of the cable 7, ensuring that there is no gap between the cable 7 and the limit block 2, improving the connection between the junction box and the cable 7, and the junction box will not slide on the cable 7 after the cable 7 is connected.

[0028] like Figure 1 , 5 As shown, there are four clamping mechanisms 5 inside the junction box body 4, and the clamping mechanisms 5 are distributed in a rectangular array on the bottom inner wall of the junction box body 4. The distance between the clamping mechanism 5 on the left side of the inner wall of the junction box body 4 and the clamping mechanism 5 on the right side is greater than the outer diameter of the cable 7, which is convenient for placing the cable 7 between the clamping mechanisms 5 and fixing it using the clamping mechanism 5. The inner diameter of the rubber pad 501 on the clamping mechanism 5 is equal to the outer diameter of the cable 7, which increases the contact area between the rubber pad 501 and the cable 7. The rubber pad 501 can increase the friction between the clamping block 502 and the cable 7, thereby improving the fixing effect of the clamping mechanism 5 on the cable 7. There are two storage chambers 6 inside the junction box body 4, and the storage chambers 6 are symmetrically arranged on the vertical plane where the symmetry axis of the junction box body 4 is located, so as to dry the left and right sides of the cable 7 connection part respectively, so as to improve the dryness inside the junction box, and water absorption holes 601 are evenly arranged on the upper surface of the storage chamber 6, and water absorption holes 601 are evenly arranged on the upper part of the side of the storage chamber 6 near the middle position of the junction box body 4. The water absorption holes 601 are arranged to facilitate the desiccant in the storage chamber 6 to absorb the moisture in the junction box, and the water absorption holes 601 are arranged corresponding to the middle part of the junction box body 4 to improve the drying effect of the desiccant on the connection part of the cable 7.

[0029] like Figure 3 As shown, a sealing groove 101 is provided on the upper cover 1, and the sealing groove 101 cooperates with the sealing strip 401 to improve the waterproof performance of the junction box. Grooves are provided at positions corresponding to the cable 7 on the upper cover 1 and the junction box body 4, and the diameter of the groove is equal to the outer diameter of the cable 7. The opening of the groove facilitates a close fit between the cable 7 and the limit block 2.

[0030] The utility model has the following advantages:

[0031] 1. The utility model not only seals the cable joint in the junction box body, but also arranges a desiccant in the junction box body. Even if a small amount of moisture can penetrate, it will not cause a short circuit fault, thereby improving the reliability of the cable power supply.

[0032] 2. The utility model provides a cable fixing device composed of a clamping mechanism on the inner wall of the junction box body. After the cable is connected, the position of the cable is adjusted, and the screw on the support block is rotated clockwise. The screw moves toward the inside of the junction box body on the support block and pushes the rubber pad and the clamping block toward the inside of the junction box. The corresponding rubber pad clamps the cable and fixes the position of the cable to prevent the connection part from loosening or directly falling off from the junction box when the cable is subjected to tension, thereby solving the problem that the cable is easy to fall off from the junction box.

[0033] 3. The utility model provides a sealing strip on the junction box body. When the junction box is connected to the upper cover, the sealing strip cooperates with the sealing groove provided on the upper cover to fully seal the gap between the contact surface of the upper cover and the junction box body. By sleeved a sealing ring on the outer surface of the cable and providing a card slot on the limit block, when the upper cover is connected to the junction box body, the sealing ring cooperates with the card slot to seal the gap between the limit block and the cable, thereby improving the waterproof effect of the junction box. The sealing ring can fix the cable in the limit block, and has the function of preventing the cable from falling off, thereby solving the problem that the waterproof effect of the junction box is poor and moisture easily penetrates from the connection gap between the upper cover and the junction box body.

[0034] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein are within the protection scope of the present invention.

Claims

1. A waterproof cable junction box, characterized in that: The structure comprises a junction box body (4) and an upper cover (1) arranged on the top of the junction box body (4), the two ends of which respectively clamp two cables connected to each other, and a closed space for accommodating the cable joint is formed in the middle, and a desiccant is arranged inside the closed space, and a sealing strip (401) is arranged between the side wall of the junction box body (4) and the upper cover (1), and a limit block (2) is arranged on the outer side of each end of the upper cover (1) and the junction box body (4), and the two limit blocks (2) located at the same end of the upper cover (1) and the junction box body (4) are fixedly connected and clamp the cable at that end, and a sealing ring (701) is arranged between the limit block (2) and the clamped cable.

2. A waterproof cable junction box according to claim 1, characterized in that: A cable fixing device is provided inside the junction box body (4), the cable fixing device comprising four clamping mechanisms, which are respectively located at four corners of the inner wall at the bottom of the junction box body (4), each clamping mechanism comprising a support block (504), a screw rod (505) and a clamping block (502), the support block (504) being fixed to the bottom of the junction box body (4), the screw rod (505) being screwed into a horizontal threaded hole on the support block (504) and being opposite to the cable in the junction box body (4), and the end of the screw rod (505) opposite to the cable being rotatably connected to the clamping block (502) via a clamping block (503).

3. A waterproof cable junction box according to claim 2, characterized in that: The desiccant is divided into two storage chambers (6), the two storage chambers (6) are fixed on the inner wall of the bottom of the junction box body (4) and are respectively located on both sides of the cable connector, and each storage chamber (6) is provided with a plurality of water absorption holes (601).

4. A waterproof cable junction box according to claim 3, characterized in that: A rubber pad (501) is fixedly connected to the side of the pressing block (502) opposite to the cable, and a side of the rubber pad (501) opposite to the cable is a curved surface matching the outer surface of the cable.

5. A waterproof cable junction box according to claim 4, characterized in that: Each limit block (2) is provided with a semi-cylindrical clamping groove matching the shape of the outer surface of the cable, and connecting blocks (3) are provided on both sides of the limit blocks (2). The connecting blocks (3) on both sides of the two limit blocks (2) at the same end of the upper cover (1) and the junction box body (4) are connected by fixing bolts (301).

6. A waterproof cable junction box according to claim 5, characterized in that: The sealing strip (401) is arranged on the junction box body (4), and a sealing groove (101) matching the sealing strip (401) is provided on the upper cover (1).

7. A waterproof cable junction box according to claim 6, characterized in that: A clamping groove (201) corresponding to the sealing ring (701) is provided on the inner wall of the semi-cylindrical clamping groove of the limiting block (2).

8. A waterproof cable junction box according to claim 7, characterized in that: Four sealing rings (701) are provided, and two sealing rings (701) are mounted on the cables clamped at each end of the upper cover (1) and the junction box body (4).

9. A waterproof cable junction box according to claim 8, characterized in that: Semi-cylindrical grooves are provided at the positions where the cables are clamped at both ends of the upper cover (1) and the junction box body (4), and the diameter of the groove is equal to the outer diameter of the cable.

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