A waterproof joint

CN224610478UActive Publication Date: 2026-08-07DONGGUAN HANGTONG ELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN HANGTONG ELECTRIC TECH CO LTD
Filing Date
2025-07-07
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0005]为了弥补以上不足,本实用新型提供了一种防水接头,旨在改善现有技术中防水接头不方便对不同直径的电缆进行使用的问题

Benefits of technology

[0023]1. In this utility model, by rotating the nut, the nut moves downward and compresses the sealing ring inward, making the sealing ring fit tightly with the cable. This prevents moisture from entering through the gap between the cable and the device. When the nut rotates downward to the bottom, the triangular teeth engage with the groove at the bottom of the nut, preventing the nut from loosening. Through the contraction of the sealing ring, the device can be used with cables of different diameters, improving its practicality and meeting the needs of users.

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Abstract

The utility model relates to waterproof joint technical field discloses a waterproof joint, including fixed sheet, the top of fixed sheet is provided with sealing mechanism, sealing mechanism includes screw pipe, the top of fixed sheet is fixedly connected in screw pipe, the top fixedly connected with tightening ring of screw pipe, the outside of screw pipe is connected with the nut of screw thread, the bottom of nut is provided with bevel tooth slot, the top front side of fixed sheet is opened to have recess, the inside sliding connection of recess has triangle tooth, triangle tooth and bevel tooth slot meshing connection. In the utility model, through rotating the nut and making the nut move down, make it to the inside extrude tightening ring, make sealing ring and cable close tightly, make moisture not through the gap of cable and the device, triangle tooth and the recess of nut bottom meshing, make the nut not to take place loose, through the contraction of sealing ring, make the device can use to different diameter cable.
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Description

Technical Field

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

[0002] A waterproof connector is a special connector used to connect wires, cables, or pipes. It effectively prevents water, moisture, or dust and impurities from entering the connection, extending the service life of related equipment and ensuring operational safety.

[0003] With the rapid development of modern industry, electrical equipment is being used and upgraded more and more widely. Electrical equipment is gradually extending to outdoor, humid and various complex environments. Early ordinary connectors could not meet the outdoor use requirements of cables due to their poor sealing performance. At this time, a waterproof connector is needed.

[0004] Currently, waterproof connectors on the market mainly consist of nuts, bolts, bushings, and waterproof washers. During use, the nuts and bolts connect to connect the cables, and the waterproof washers provide waterproofing. However, if the threads are not tightened properly or the sealing ring is misaligned during installation, the seal will fail. To solve this problem, existing technologies use positioning and marking methods to prevent misalignment of the sealing ring. However, because cables of different specifications have different diameters, this device can only be used with cables of the corresponding diameter, making it inconvenient to use with cables of different diameters, reducing its practicality and failing to meet user needs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a waterproof connector, which aims to improve the problem that existing waterproof connectors are inconvenient to use with cables of different diameters.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a waterproof connector, including a fixing plate, a sealing mechanism provided on the top of the fixing plate, the sealing mechanism being used to improve the waterproofness of the connector, and a fixing mechanism provided on the bottom of the fixing plate, the fixing mechanism being used to fix the cable;

[0007] The sealing mechanism includes a threaded tube, which is fixedly connected to the top of the fixing plate. A tightening ring is fixedly connected to the top of the threaded tube. A nut is threadedly connected to the outer side of the threaded tube. A helical tooth groove is provided at the bottom of the nut. A groove is provided on the front side of the top of the fixing plate. A triangular tooth is slidably connected inside the groove. The triangular tooth is engaged with the helical tooth groove.

[0008] As a further description of the above technical solution:

[0009] The fixing mechanism includes a fixing tube, an inner ring fixedly connected to the bottom inner side of the fixing tube, a plurality of clamping claws rotatably connected to the top of the inner ring at equal intervals, an outer ring rotatably connected to the top outer side of the inner ring, a sliding rod fixedly connected to one side of the bottom of the clamping claws, a connecting piece slidably connected to the front side of the outer ring, an annular tooth slidably connected to the upper middle part of the outer side of the fixing tube, and an annular fixing groove fixedly connected to the top outer side of the fixing tube, the annular tooth engaging with the annular fixing groove.

[0010] As a further description of the above technical solution:

[0011] The sealing mechanism also includes a buffer pad, which is fixedly connected to the top of the nut, and an arrow is fixedly connected to the front side of the top of the buffer pad.

[0012] As a further description of the above technical solution:

[0013] The sealing mechanism also includes a spring, and two springs are respectively fixedly connected to the bottom left and right sides of the triangular tooth.

[0014] As a further description of the above technical solution:

[0015] The sealing mechanism also includes a pull rod.

[0016] As a further description of the above technical solution:

[0017] The fixing mechanism also includes telescopic rods, two of which are fixedly connected to the bottom left and right sides of the ring tooth respectively, and springs are provided on the outer side of the telescopic rods.

[0018] As a further description of the above technical solution:

[0019] The fixing mechanism also includes a connecting tube, which is fixedly connected to the bottom of the fixing tube, and the inner size of the fixing tube matches the outer size.

[0020] As a further description of the above technical solution:

[0021] The sealing mechanism also includes an anti-slip ridge, which is fixedly connected to the top of the outer side of the nut, and a sealing ring is provided on the inner side of the tightening ring.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by rotating the nut, the nut moves downward and compresses the sealing ring inward, making the sealing ring fit tightly with the cable. This prevents moisture from entering through the gap between the cable and the device. When the nut rotates downward to the bottom, the triangular teeth engage with the groove at the bottom of the nut, preventing the nut from loosening. Through the contraction of the sealing ring, the device can be used with cables of different diameters, improving its practicality and meeting the needs of users.

[0024] 2. In this utility model, by pulling down the ring tooth, the ring tooth disengages from the ring fixing groove, and by rotating the ring tooth, the outer ring rotates through the connecting piece, so that multiple clamping claws can rotate inward at the same time to fix the wires inside the fixing tube. The ring tooth is pushed upward by the spring to engage with the ring fixing groove, so that the clamping claws will not loosen and the cable can be firmly fixed, which improves the convenience of the device. Attached Figure Description

[0025] Figure 1 This is a perspective view of a waterproof connector proposed in this utility model;

[0026] Figure 2 This is a front view of a waterproof connector proposed in this utility model;

[0027] Figure 3 This is a partial structural exploded view of a waterproof connector proposed in this utility model;

[0028] Figure 4 This is a partial structural exploded view of the sealing mechanism of a waterproof joint proposed in this utility model;

[0029] Figure 5 This is a partial structural exploded view of the fixing mechanism for a waterproof connector proposed in this utility model;

[0030] Figure 6 for Figure 5 Enlarged view of point A in the image;

[0031] Figure 7 This is a partial structural diagram of a waterproof connector proposed in this utility model.

[0032] Legend:

[0033] 1. Fixing plate; 2. Sealing mechanism; 21. Threaded tube; 22. Tightening ring; 23. Nut; 24. Slanted tooth groove; 25. Groove; 26. Triangular tooth; 27. Spring 1; 28. Pull rod; 29. ​​Anti-slip ridge; 210. Sealing ring; 211. Buffer pad; 212. Arrow; 3. Fixing mechanism; 31. Fixing tube; 32. Inner ring; 33. Clamping claw; 34. Outer ring; 35. Sliding rod; 36. Connecting plate; 37. Ring tooth; 38. Ring fixing groove; 39. Telescopic rod; 310. Spring 2; 311. Connecting tube. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 2 , Figure 3 and Figure 4 The present invention provides an embodiment of a waterproof connector, including a fixing plate 1, a sealing mechanism 2 provided on the top of the fixing plate 1, the sealing mechanism 2 being used to improve the waterproofness of the connector, and a fixing mechanism 3 provided on the bottom of the fixing plate 1, the fixing mechanism 3 being used to fix the cable.

[0036] The sealing mechanism 2 includes a threaded tube 21, which is fixedly connected to the top of the fixing plate 1. A tightening ring 22 is fixedly connected to the top of the threaded tube 21, which is used to tightly fit the sealing ring 210 with the cable. A nut 23 is threadedly connected to the outer side of the threaded tube 21. A helical tooth groove 24 is formed at the bottom of the nut 23. A groove 25 is formed on the front side of the top of the fixing plate 1. A triangular tooth 26 is slidably connected inside the groove 25. The triangular tooth 26 engages with the helical tooth groove 24 to provide resistance. To prevent the nut 23 from rotating, the sealing mechanism 2 also includes a spring 27. Two springs 27 are fixedly connected to the bottom left and right sides of the triangular tooth 26 respectively. The two springs 27 are used to push the triangular tooth 26 out of the groove 25. The sealing mechanism 2 also includes a pull rod 28, which is used to pull the triangular tooth 26 into the groove 25. The sealing mechanism 2 also includes an anti-slip ridge 29, which is used to prevent slippage when tightening the nut 23. The anti-slip ridge 29 is fixedly connected to the top of the outer side of the nut 23. A sealing ring 210 is provided on the inner side of the tightening ring 22.

[0037] Specifically, when the nut 23 is rotated, the inclined surface inside the nut 23 compresses the tightening ring 22 inward, causing it to contract. The tightening ring 22 pushes the sealing ring 210 inward, making the sealing ring 210 fit tightly against the cable. As the nut 23 gradually moves to the bottom, the inclined tooth groove 24 at the bottom of the nut 23 engages with the triangular tooth 26 at the top of the fixing plate 1, preventing the nut 23 from rotating. The pull rod 28 is then pulled to move the triangular tooth 26 into the groove 25, causing the triangular tooth 26 to disengage from the inclined tooth groove 24. The nut 23 rotates upward and no longer compresses the tightening ring 22. Both the tightening ring 22 and the sealing ring 210 unfold outward, allowing the cable to be removed.

[0038] Reference Figure 5 , Figure 6 and Figure 7 The fixing mechanism 3 includes a fixing tube 31. An inner ring 32 is fixedly connected to the bottom inner side of the fixing tube 31. Multiple clamping claws 33 are rotatably connected at equal intervals to the top of the inner ring 32. The clamping claws 33 are used to fix the cable entering the waterproof connector. An outer ring 34 is rotatably connected to the top outer side of the inner ring 32. The outer ring 34 is used to control the opening and closing of the clamping claws 33. A sliding rod 35 is fixedly connected to one side of the bottom of the clamping claws 33. A connecting piece 36 is slidably connected to the front side of the outer ring 34. The connecting piece 36 is used to connect the annular tooth 37 and the outer ring 34. 4. A ring tooth 37 is slidably connected to the upper middle part of the outer side of the fixed tube 31. The ring tooth 37 is used to control the rotation of the outer ring 34. A ring fixing groove 38 is fixedly connected to the top of the outer side of the fixed tube 31. The ring tooth 37 is engaged with the ring fixing groove 38. The fixing mechanism 3 also includes a telescopic rod 39. The telescopic rod 39 is used to push the ring tooth 37 to move upward and engage with the ring fixing groove 38. The two telescopic rods 39 are fixedly connected to the bottom left and right sides of the ring tooth 37 respectively. A spring 310 is provided on the outer side of the telescopic rod 39.

[0039] Specifically, pull down the ring tooth 37 to disengage it from the ring fixing groove 38, thereby releasing the limit on the ring tooth 37. Rotate the ring tooth 37 to make the outer ring 34 connected by the connecting piece 36 rotate. The rotation of the outer ring 34 will drive the sliding rod 35 to move. Since the bottom of the clamping claw 33 is connected to the inner ring 32, the sliding rod 35 will drive the clamping claw 33 to rotate. Multiple clamping claws 33 move towards the middle at the same time, which can fix the cable inside the device.

[0040] Reference Figure 1 and Figure 2 The sealing mechanism 2 also includes a buffer pad 211, which is used to reduce the impact of the impact on the inside of the waterproof joint. The buffer pad 211 is fixedly connected to the top of the nut 23. An arrow 212 is fixedly connected to the front side of the top of the buffer pad 211. The arrow 212 is used to indicate the direction of rotation to the user.

[0041] Specifically, the buffer pad 211 is used to provide protection for the device, and the arrow 212 is used to indicate the direction of rotation.

[0042] Reference Figure 1 and Figure 5 The fixing mechanism 3 also includes a connecting pipe 311, which is used to connect other equipment. The connecting pipe 311 is fixedly connected to the bottom of the fixing pipe 31, and the inner size of the fixing pipe 31 matches the size of the outer ring 34.

[0043] Specifically, when in use, the connecting tube 311 is connected to other equipment, and the inner size of the fixing tube 31 matches the size of the outer ring 34 so that the outer ring 34 will not wobble.

[0044] Working principle: When using this device, the wire needs to be placed into the waterproof connector first. Rotate the nut 23 and move it downward. The inside of the nut 23 will squeeze the tightening ring 22, causing the tightening ring 22 to contract inward and push the sealing ring 210 to fit with the wire to achieve waterproofing. As the nut 23 moves downward, it will gradually engage with the triangular teeth 26 on the fixing plate 1, preventing the nut 23 from rotating and thus causing it to loosen. When disassembling, pulling the lever 28 will allow the triangular teeth 26 to enter the groove 25 downward. At this time, rotate the nut 23 to take out the wire from the waterproof connector. The tightening ring 22 squeezes the sealing ring 210, which achieves the contraction of the sealing ring 210, enabling the use of cables of different diameters.

[0045] Furthermore, when the wire enters the waterproof connector, the annular tooth 37 is pulled down to disengage from the annular fixing groove 38. The annular tooth 37 rotates, and the outer ring 34 connected to the connecting piece 36 rotates simultaneously. Since the bottom of the clamping claw 33 is connected to the inner ring 32, the rotation of the outer ring 34 will push the clamping claw 33 to rotate through the sliding rod 35. At this time, multiple clamping claws 33 will rotate towards the center at the same time, fixing the cable firmly. The second spring 310 will push the annular tooth 37 to move upward, so that the annular tooth 37 engages with the annular fixing groove 38, preventing the clamping claw 33 from loosening, thereby fixing the wire firmly and preventing it from loosening.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof connector, comprising a fixing plate (1), characterized in that: The top of the fixing plate (1) is provided with a sealing mechanism (2), which is used to improve the waterproofness of the connector. The bottom of the fixing plate (1) is provided with a fixing mechanism (3), which is used to fix the cable. The sealing mechanism (2) includes a threaded tube (21), which is fixedly connected to the top of the fixing plate (1). A tightening ring (22) is fixedly connected to the top of the threaded tube (21). A nut (23) is threadedly connected to the outside of the threaded tube (21). A helical tooth groove (24) is provided at the bottom of the nut (23). A groove (25) is provided on the front side of the top of the fixing plate (1). A triangular tooth (26) is slidably connected inside the groove (25). The triangular tooth (26) meshes with the helical tooth groove (24).

2. A waterproof connector according to claim 1, characterized in that: The fixing mechanism (3) includes a fixing tube (31), an inner ring (32) is fixedly connected to the bottom inner side of the fixing tube (31), a plurality of clamping claws (33) are equidistantly rotatably connected to the top of the inner ring (32), an outer ring (34) is rotatably connected to the top outer side of the inner ring (32), a sliding rod (35) is fixedly connected to one side of the bottom of the clamping claw (33), a connecting piece (36) is slidably connected to the front side of the outer ring (34), an annular tooth (37) is slidably connected to the upper middle part of the outer side of the fixing tube (31), and an annular fixing groove (38) is fixedly connected to the top outer side of the fixing tube (31). The annular tooth (37) and the annular fixing groove (38) are engaged and connected.

3. A waterproof connector according to claim 1, characterized in that: The sealing mechanism (2) also includes a buffer pad (211), which is fixedly connected to the top of the nut (23), and an arrow (212) is fixedly connected to the front side of the top of the buffer pad (211).

4. A waterproof connector according to claim 1, characterized in that: The sealing mechanism (2) also includes a spring (27), and the two springs (27) are respectively fixedly connected to the bottom left and right sides of the triangular tooth (26).

5. A waterproof connector according to claim 4, characterized in that: The sealing mechanism (2) also includes a pull rod (28).

6. A waterproof connector according to claim 1, characterized in that: The fixing mechanism (3) also includes telescopic rods (39), and the two telescopic rods (39) are respectively fixedly connected to the bottom left and right sides of the ring tooth (37), and springs (310) are provided on the outside of the telescopic rods (39).

7. A waterproof connector according to claim 2, characterized in that: The fixing mechanism (3) also includes a connecting tube (311), which is fixedly connected to the bottom of the fixing tube (31), and the inner size of the fixing tube (31) matches the size of the outer ring (34).

8. A waterproof connector according to claim 1, characterized in that: The sealing mechanism (2) also includes an anti-slip ridge (29), which is fixedly connected to the top of the outer side of the nut (23), and a sealing ring (210) is provided on the inner side of the tightening ring (22).