Cable waterproof joint
By designing a cable waterproof joint that includes threaded connections and tapered sealing sleeves, the problem of easy water inflow at the cable connection parts in humid environments is solved, achieving higher waterproof performance and lower leakage risk.
Patent Information
- Application Number
- CN202421827216.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The cable connection area is prone to water in a humid environment, resulting in leakage accidents.
A cable waterproof joint is designed, including a first connecting sleeve, a first sealing sleeve, an abutment sleeve, a second connecting sleeve and a second sealing sleeve. The extrusion effect of the threaded connection and the tapered sealing sleeve is achieved to achieve sealing the outer wall of the cable.
The waterproof performance of the cable connection parts is improved, so that it can adapt to humid environments and reduce the occurrence of leakage accidents.
Smart Images
Figure CN222940526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable connection, and particularly relates to a cable waterproof joint. Background Art
[0002] A cable is usually a rope-like device structure formed by stranding several or several groups of wires (at least two wires in each group). The wires in each group are insulated from each other and are often twisted around a center. The whole is covered with a highly insulating covering layer. A cable has the characteristics of being energized inside and insulated outside.
[0003] In many construction sites, it is often necessary to lay cables. During the process of laying or repairing cables, the operation of connecting two cables is often involved. When electrical and mechanical personnel connect two cables, a relatively common connection method is as follows: First, strip the ends of the two cables to be connected so that each wire is exposed. Then, tightly wind the corresponding wires of the two cables together, and wrap the corresponding wires with insulating tape. Finally, use electrical tape to wrap all the wires together for protection, and also wrap the ends of the insulating layers outside the two cables together, aiming to improve the waterproof performance of the cable connection part.
[0004] In the related art, during the above-mentioned cable connection process, in order to improve the waterproof performance of the cable connection part, a large amount of electrical tape is used, resulting in a thick layer of electrical tape wrapped around the cable, wasting a lot and taking a lot of time. In addition, when the above-mentioned cable connection part is in a high-temperature and humid environment for a long time, it is easy to cause the viscosity of the electrical tape to fail, resulting in water ingress at the cable connection part, and finally a leakage accident occurs. Content of the Utility Model
[0005] The purpose of the utility model is to provide a cable waterproof joint to solve the problem that the cable connection part is prone to water ingress and leakage accidents when it is in a humid environment for a long time.
[0006] The utility model is realized by the following technical solutions:
[0007] A cable waterproof joint includes a first connecting sleeve, a first sealing sleeve, an abutting cylinder, a second connecting sleeve and a second sealing sleeve. One end of the inner hole wall of the first connecting sleeve is provided with an internal thread, and one end of the outer wall of the second connecting sleeve is provided with an external thread. The corresponding ends of the first connecting sleeve and the second connecting sleeve are connected by threads. The outer walls of the first sealing sleeve and the second sealing sleeve are both conical. A first ring plate is arranged inside the first connecting sleeve at the end far from the second connecting sleeve, and a second ring plate is arranged inside the second connecting sleeve at the end far from the first connecting sleeve. The central axes of the inner circles of the first ring plate, the first connecting sleeve, the second connecting sleeve and the second ring plate coincide. The first sealing sleeve is located inside the inner circle of the first ring plate, and the larger end of the first sealing sleeve is located inside the first connecting sleeve. The second sealing sleeve is located inside the inner circle of the second ring plate, and the larger end of the second sealing sleeve is located inside the second connecting sleeve. The abutting cylinder is located between the first sealing sleeve and the second sealing sleeve, and one end of the abutting cylinder abuts against the first sealing sleeve and the other end abuts against the second sealing sleeve.
[0008] Further, a first extrusion cylinder is arranged on one side of the first connecting sleeve close to the first ring plate. The inner hole of the first extrusion cylinder is conical. The smaller end of the inner hole of the first extrusion cylinder is connected to the inner hole of the first ring plate. The inner hole of the first extrusion cylinder presses against the outer wall of the first sealing sleeve. A second extrusion cylinder is arranged on one side of the second connecting sleeve close to the second ring plate. The inner hole of the second extrusion cylinder is conical. The smaller end of the inner hole of the second extrusion cylinder is connected to the inner hole of the second ring plate. The inner hole of the second extrusion cylinder presses against the outer wall of the second sealing sleeve.
[0009] Further, anti-slip portions are arranged on the outer walls of the first connecting sleeve and the second connecting sleeve. The cross-sectional shape of the anti-slip portion is a hexagonal prism.
[0010] Further, one end of the abutting cylinder close to the first sealing sleeve is hermetically connected to the corresponding end of the first sealing sleeve, and the other end is hermetically connected to the corresponding end of the second sealing sleeve.
[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0012] In the present utility model, when connecting two cables, first strip the ends of the two cables to be connected, then pass the first cable integrally through the inner holes of the first connecting sleeve, the first sealing sleeve, the abutting cylinder, the second connecting sleeve, and the second sealing sleeve. Then, wind and wrap the corresponding wires of the two cables with electrical tape. Subsequently, move the second connecting sleeve so that the second sealing sleeve is sleeved outside the insulating sleeve of the second cable, and at the same time, the first sealing sleeve is sleeved outside the insulating sleeve of the first cable. Then, twist the first connecting sleeve and the second connecting sleeve so that the second connecting sleeve moves towards the inside of the first connecting sleeve. In fact, at this time, both the first connecting sleeve and the second connecting sleeve move towards the direction close to the abutting cylinder. At the same time, both the first ring plate and the second ring plate move towards the direction close to the abutting cylinder. With the cooperation of the abutting cylinder, during the displacement process, the first ring plate will gradually increase the extrusion force on the conical first sealing sleeve, and the second ring plate will gradually increase the extrusion force on the conical second sealing sleeve during the moving process. Thereby, the first connecting sleeve and the first sealing sleeve seal the outer wall of the first cable, and the second connecting sleeve and the second sealing sleeve seal the outer wall of the second cable, thereby improving the waterproof performance of the connection part of the two cables, enabling the cable connection part to adapt to a relatively humid environment, and reducing the occurrence of electric leakage accidents. Brief Description of the Drawings
[0013] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model.
[0014] In the drawings:
[0015] Figure 1 is a sectional view structure diagram of the present utility model;
[0016] Figure 2 is a side view of the first connecting sleeve of the present utility model.
[0017] Marks in the drawings and corresponding component names:
[0018] 1. First connecting sleeve; 2. First sealing sleeve; 3. Abutting cylinder; 4. Second connecting sleeve; 5. Second sealing sleeve; 6. First ring plate; 7. Second ring plate; 8. First extrusion cylinder; 9. Second extrusion cylinder; 10. Anti-slip part. Detailed Embodiment
[0019] To make the purpose, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with embodiments and drawings. The illustrative embodiments and descriptions of the present utility model are only used to explain the present utility model and do not constitute a limitation to the present utility model. It should be noted that the present utility model has been in the actual R & D and use stage.
[0020] Example 1
[0021] A cable waterproof joint, referring to Figure 1 and Figure 2 , includes a first connecting sleeve 1, a first sealing sleeve 2, an abutting cylinder 3, a second connecting sleeve 4 and a second sealing sleeve 5. The interiors of the first connecting sleeve 1, the first sealing sleeve 2, the abutting cylinder 3, the second connecting sleeve 4 and the second sealing sleeve 5 are all hollow. One end of the inner hole wall of the first connecting sleeve 1 is provided with an internal thread, and one end of the outer wall of the second connecting sleeve 4 is provided with an external thread. The corresponding ends of the first connecting sleeve 1 and the second connecting sleeve 4 are connected by threads; the outer walls of the first sealing sleeve 2 and the second sealing sleeve 5 are both conical. A first ring plate 6 is arranged inside the first connecting sleeve 1 at the end far from the second connecting sleeve 4, and a second ring plate 7 is arranged inside the second connecting sleeve 4 at the end far from the first connecting sleeve 1. The central axes of the inner circles of the first ring plate 6, the first connecting sleeve 1, the second connecting sleeve 4 and the second ring plate 7 coincide; the first sealing sleeve 2 is located inside the inner circle of the first ring plate 6, and the larger end of the first sealing sleeve 2 is located inside the first connecting sleeve 1. The second sealing sleeve 5 is located inside the inner circle of the second ring plate 7, and the larger end of the second sealing sleeve 5 is located inside the second connecting sleeve 4; the abutting cylinder 3 is located between the first sealing sleeve 2 and the second sealing sleeve 5, and one end of the abutting cylinder 3 abuts against the first sealing sleeve 2 and the other end abuts against the second sealing sleeve 5.
[0022] In this solution, when connecting two cables, first strip the ends of the two cables to be connected, then pass the first cable integrally through the inner holes of the first connecting sleeve 1, the first sealing sleeve 2, the abutting cylinder 3, the second connecting sleeve 4 and the second sealing sleeve 5. Then wind and wrap the corresponding wires of the two cables with electrical tape. Subsequently, move the second connecting sleeve 4 so that the second sealing sleeve 5 is sleeved outside the insulating sleeve of the second cable, and at the same time, the first sealing sleeve 2 is sleeved outside the insulating sleeve of the first cable. Then twist the first connecting sleeve 1 and the second connecting sleeve 4 so that the second connecting sleeve 4 moves towards the inside of the first connecting sleeve 1. In fact, at this time, both the first connecting sleeve 1 and the second connecting sleeve 4 move towards the direction close to the abutting cylinder 3. At the same time, both the first ring plate 6 and the second ring plate 7 move towards the direction close to the abutting cylinder 3. With the cooperation of the abutting cylinder 3, the first ring plate 6 will gradually increase the extrusion force on the conical first sealing sleeve 2 during the displacement process, and the second ring plate 7 will gradually increase the extrusion force on the conical second sealing sleeve 5 during the movement process. Thus, the first connecting sleeve 1 and the first sealing sleeve 2 seal the outer wall of the first cable, and the second connecting sleeve 4 and the second sealing sleeve 5 seal the outer wall of the second cable, thereby improving the waterproof performance of the connection part of the two cables, enabling the cable connection part to adapt to a relatively humid environment, and reducing the occurrence of electric leakage accidents.
[0023] Example 2
[0024] On the basis of Example 1, in this example, referring to Figure 1 、 Figure 2 , on one side of the first connecting sleeve 1 close to the first ring plate 6, a first extrusion cylinder 8 is provided. The inner hole of the first extrusion cylinder 8 is conical. The smaller-diameter end of the inner hole of the first extrusion cylinder 8 is connected to the inner hole of the first ring plate 6, and the inner hole of the first extrusion cylinder 8 presses against the outer wall of the first sealing sleeve 2; on one side of the second connecting sleeve 4 close to the second ring plate 7, a second extrusion cylinder 9 is provided. The inner hole of the second extrusion cylinder 9 is conical. The smaller-diameter end of the inner hole of the second extrusion cylinder 9 is connected to the inner hole of the second ring plate 7, and the inner hole of the second extrusion cylinder 9 presses against the outer wall of the second sealing sleeve 5. When tightening the first connecting sleeve 1 and the second connecting sleeve 4, the extrusion effect on the corresponding sealing sleeve can be improved to a certain extent, and the first extrusion cylinder 8 and the second extrusion cylinder 9 move more smoothly, facilitating more easily pressing the first sealing sleeve 2 and the second sealing sleeve 5 against the corresponding cable outer wall.
[0025] Example 3
[0026] On the basis of Example 2, in this example, referring to Figure 1 、 Figure 2 , anti-slip portions 10 are provided on the outer walls of both the first connecting sleeve 1 and the second connecting sleeve 4. The cross-sectional shape of the anti-slip portion 10 is a hexagonal prism. When turning the first connecting sleeve 1 and the second connecting sleeve 4, two wrenches can be used to clamp on the corresponding anti-slip portions 10, facilitating more tightly fixing the joint at the joints of two cables.
[0027] Example 4
[0028] On the basis of Example 3, in this example, referring to Figure 1 、 Figure 2 , one end of the abutting cylinder 3 close to the first sealing sleeve 2 is hermetically connected to the corresponding end of the first sealing sleeve 2 by glue, and the other end is hermetically connected to the corresponding end of the second sealing sleeve 5 by glue, and the abutting cylinder 3 coincides with the central axis of the first connecting sleeve 1. On the one hand, by fixing the first sealing sleeve 2, the abutting cylinder 3 and the second sealing sleeve 5, it is convenient to quickly pass the cable through the entire joint; on the other hand, it makes the joint form a more stable overall structure with stronger stability; on the other hand, even if moisture enters the inside of the connecting sleeve through the gap between the sealing sleeve and the connecting sleeve, due to the hermetic connection between the abutting cylinder 3 and the two sealing sleeves, it is difficult for the moisture to further enter the inside of the abutting cylinder 3 to contact the cable.
[0029] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A cable waterproof connector, characterized in that: The invention comprises a first connecting sleeve (1), a first sealing sleeve (2), an abutting sleeve (3), a second connecting sleeve (4) and a second sealing sleeve (5); one end of the inner hole wall of the first connecting sleeve (1) is provided with an internal thread, one end of the outer wall of the second connecting sleeve (4) is provided with an external thread, and the corresponding ends of the first connecting sleeve (1) and the second connecting sleeve (4) are connected by threads; the outer walls of the first sealing sleeve (2) and the second sealing sleeve (5) are both conical; a first ring plate (6) is provided inside the end of the first connecting sleeve (1) away from the second connecting sleeve (4), and a second ring plate (7) is provided inside the end of the second connecting sleeve (4) away from the first connecting sleeve (1). 7), the first ring plate (6), the first connecting sleeve (1), the second connecting sleeve (4) and the inner ring central axis of the second ring plate (7) coincide with each other; the first sealing sleeve (2) is located in the inner ring of the first ring plate (6), and the larger end of the first sealing sleeve (2) is located inside the first connecting sleeve (1); the second sealing sleeve (5) is located in the inner ring of the second ring plate (7), and the larger end of the second sealing sleeve (5) is located inside the second connecting sleeve (4); the abutting sleeve (3) is located between the first sealing sleeve (2) and the second sealing sleeve (5), and one end of the abutting sleeve (3) abuts against the first sealing sleeve (2) and the other end abuts against the second sealing sleeve (5).
2. A cable waterproof connector according to claim 1, characterized in that: A first extrusion cylinder (8) is arranged on the side of the first connecting sleeve (1) close to the first ring plate (6), the inner hole of the first extrusion cylinder (8) is tapered, the end of the first extrusion cylinder (8) with a smaller inner hole size is connected to the inner hole of the first ring plate (6), and the inner hole of the first extrusion cylinder (8) is pressed against the outer wall of the first sealing sleeve (2); a second extrusion cylinder (9) is arranged on the side of the second connecting sleeve (4) close to the second ring plate (7), the inner hole of the second extrusion cylinder (9) is tapered, the end of the second extrusion cylinder (9) with a smaller inner hole size is connected to the inner hole of the second ring plate (7), and the inner hole of the second extrusion cylinder (9) is pressed against the outer wall of the second sealing sleeve (5).
3. A cable waterproof connector according to claim 2, characterized in that: The outer walls of the first connecting sleeve (1) and the second connecting sleeve (4) are both provided with an anti-slip portion (10), and the cross-sectional shape of the anti-slip portion (10) is a hexagonal prism.
4. A cable waterproof connector according to claim 3, characterized in that: One end of the abutment sleeve (3) close to the first sealing sleeve (2) is sealedly connected to the corresponding end of the first sealing sleeve (2), and the other end is sealedly connected to the corresponding end of the second sealing sleeve (5).