A sealing structure for cable connection

Abstract

The utility model discloses a kind of sealing structures for cable connection, it is related to the technical field of cable connection, including sealing cylinder, cable body is slidably penetrated in the inside of sealing cylinder, the inner wall of sealing cylinder is fixedly connected with baffle ring. The utility model design structure is reasonable, it can be through the cooperation between cable body, rubber ring, sealing cylinder and pressing plate, by the connecting place of two cable bodies is located in the inside of sealing cylinder, two rubber rings inside sealing cylinder are extruded deformation in combination, make it extruded contact with the inner wall of sealing cylinder and the outer surface of cable body, the space formed to two baffle rings is sealed, with the increase of use time, the problem that sealing ring long time contact with outside will accelerate the aging of sealing ring, and shorten its service life, lead to the sealing of cable interface place deterioration, make the interface place seep water, lead to the problem needing frequent replacement maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of cable connection, specifically a sealing structure for cable connection. Background Technology

[0002] Cable connection sealing structures are devices used to protect cable connections from external environmental factors (such as dust, moisture, chemicals, etc.). Their core functions are to provide waterproofing, dustproofing, anti-detachment, and mechanical protection, while ensuring the continuity of the circuit and electrical insulation. Currently, small components such as sealing rings are used to seal the interface at the connection of cable connections. This sealing method is still effective within a certain time limit.

[0003] However, with prolonged use, the sealing ring's long-term contact with the external environment accelerates its aging and shortens its lifespan. This leads to poor sealing at the cable interface, causing water leakage and requiring frequent replacement and maintenance. To address these issues, we offer a sealing structure for cable connections. Utility Model Content

[0004] 1) Technical problems to be solved This utility model proposes a sealing structure for cable connections. Through the cooperation between the cable body, rubber rings, sealing cylinder, and pressure plate, the connection point of the two cable bodies is located inside the sealing cylinder. The two rubber rings inside the sealing cylinder are squeezed and deformed, causing them to press against the inner wall of the sealing cylinder and the outer surface of the cable body, thus sealing the space formed by the two retaining rings. This solves the problem that with the increase of use time, the sealing ring will be in contact with the outside environment for a long time, which will accelerate the aging of the sealing ring, shorten its service life, and lead to poor sealing at the cable interface, resulting in water leakage and frequent replacement and maintenance.

[0005] (ii) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a sealing structure for cable connection, comprising a sealing cylinder, wherein a cable body is slidably passed through the interior of the sealing cylinder, a retaining ring is fixedly connected to the inner wall of the sealing cylinder, a rubber ring is provided on one side of the retaining ring, the outer surface of the rubber ring is slidably connected to the inner wall of the sealing cylinder, a threaded groove is provided on the inner wall of the sealing cylinder, and a threaded cylinder is threadedly connected to the outer surface of the threaded groove. A connecting plate is fixedly connected to the outer surface of the threaded cylinder, and a pressure plate is fixedly connected to the outer surface of the connecting plate. The outer surface of the pressure plate is slidably connected to the outer surface of the rubber ring, and the rubber ring is pressed by the pressure plate and fits against the inner wall of the sealing cylinder.

[0006] Furthermore, a circular hole is formed on the outer surface of the retaining ring, and the cable body passes through the interior of the circular hole.

[0007] Furthermore, an arc-shaped block is fixedly connected to the inner wall of the threaded cylinder, and a handle is fixedly connected to one end of the arc-shaped block.

[0008] Furthermore, a groove is provided at one end of the sealing cylinder, and an end cap is fitted into the inner wall of the groove.

[0009] Furthermore, the end cap has a perforation inside, and the outer surface of the cable body is slidably connected to the inner wall of the perforation.

[0010] Furthermore, two retaining rings are fixedly connected to the inner wall of the sealing cylinder, and the two retaining rings form a cavity inside the sealing cylinder, with the connection point of the two cable bodies located inside the cavity.

[0011] Furthermore, the outer surface of the rubber ring is provided with a fitting hole, and the outer surface of the fitting hole is slidably connected to the outer surface of the cable body.

[0012] (iii) Beneficial effects: Compared with existing technologies, this sealing structure for cable connections has the following advantages: I. The sealing structure for cable connection utilizes the cooperation between the cable body, rubber rings, sealing cylinder, and pressure plate. By placing the connection point of the two cable bodies inside the sealing cylinder, and by compressing and deforming the two rubber rings inside the sealing cylinder, they come into contact with the inner wall of the sealing cylinder and the outer surface of the cable body, sealing the space formed by the two retaining rings. This achieves the purpose of sealing the connection point using the rubber rings inside the sealing cylinder, reducing the aging of the rubber rings. It solves the problem that with prolonged use, the sealing rings are in contact with the outside environment for a long time, which accelerates their aging, shortens their service life, and leads to poor sealing at the cable interface, causing water leakage and requiring frequent replacement and maintenance.

[0013] Second, the sealing structure for cable connection, through the cooperation between the retaining ring, rubber ring, pressure plate and cable body, when using the device, when the rubber ring is squeezed, the presence of the retaining ring ensures that the rubber ring is only squeezed and does not move. When the diameter of the cable body changes, the rubber ring has a certain elasticity and deformation capability, which can be used for cable bodies of different diameters, thus improving the applicability of the device. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is an exploded view of the overall structure of this utility model; Figure 4 This is a partial exploded view of the structure of this utility model; Figure 5 For the present utility model Figure 3 Enlarged view of the structure of section A in the middle.

[0016] In the diagram: 1. Sealing cylinder; 2. Cable body; 3. Retaining ring; 4. Rubber ring; 5. Threaded groove; 6. Threaded cylinder; 7. Connecting plate; 8. Pressure plate; 9. Round hole; 10. Arc block; 11. Handle; 12. Groove; 13. End cap; 14. Perforation; 15. Cavity; 16. Fitting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. like Figure 1-5 As shown, this utility model provides a technical solution: a sealing structure for cable connection, including a sealing cylinder 1, one end of which has a groove 12, and an end cap 13 is snapped into the inner wall of the groove 12. A part of the end cap 13 can be embedded in the inner wall of the groove 12. The end cap 13 is made of rubber and can be deformed, which makes it easy to snap the end cap 13 into the inner wall of the groove 12 and supports quick assembly and disassembly. The cable body 2 slides through the inside of the sealing cylinder 1, and a retaining ring 3 is fixedly connected to the inner wall of the sealing cylinder 1.

[0018] The outer surface of the retaining ring 3 has a circular hole 9, through which the cable body 2 passes. The retaining ring 3 can prevent the rubber ring 4 from moving under pressure, thus limiting the movement of the rubber ring 4. Two retaining rings 3 are fixedly connected to the inner wall of the sealing cylinder 1. The two retaining rings 3 form a cavity 15 inside the sealing cylinder 1. The connection part of the two cable bodies 2 is located inside the cavity 15. The cavity 15 formed by the two retaining rings 3 can accommodate the cable connection part (such as a connector), making it convenient to use.

[0019] The outer surface of the rubber ring 4 is provided with a fitting hole 16. The outer surface of the fitting hole 16 is slidably connected to the outer surface of the cable body 2. Since the rubber ring 4 has a fitting hole 16 in the middle and the material of the fitting hole 16 is the same as that of the rubber ring 4, it can be deformed. Therefore, the connection part of the two cable bodies 2 can easily pass through the fitting hole 16 and be located inside the cavity 15.

[0020] A rubber ring 4 is provided on one side of the retaining ring 3. The rubber ring 4 is made of fluororubber and has the characteristics of high temperature resistance, oil resistance, ozone resistance and anti-aging. The end cap 13 has a through hole 14 inside. The outer surface of the cable body 2 is slidably connected to the inner wall of the through hole 14. When installing the end cap 13, the end cap 13 is passed through the cable body 2 and clamped at both ends of the sealing cylinder 1. The end cap 13 and the rubber ring 4 can provide double sealing for the connection part of the two cable bodies 2.

[0021] The outer surface of the rubber ring 4 is slidably connected to the inner wall of the sealing cylinder 1. The inner wall of the sealing cylinder 1 is provided with a threaded groove 5. The outer surface of the threaded groove 5 is threadedly connected to a threaded cylinder 6. The main body of the sealing cylinder 1 is made of engineering plastic, and the threaded cylinder 6 is made of stainless steel to ensure corrosion resistance and mechanical strength. The inner wall of the sealing cylinder 1 is coated with polytetrafluoroethylene to reduce the coefficient of friction and prevent corrosion.

[0022] A connecting plate 7 is fixedly connected to the outer surface of the threaded cylinder 6, and a pressure plate 8 is fixedly connected to the outer surface of the connecting plate 7. An arc-shaped block 10 is fixedly connected to the inner wall of the threaded cylinder 6, and a handle 11 is fixedly connected to one end of the arc-shaped block 10. Rotating the handle 11 can make the threaded cylinder 6 rotate, thereby driving the connecting plate 7 and the pressure plate 8 to squeeze the rubber ring 4.

[0023] The outer surface of the pressure plate 8 is slidably connected to the outer surface of the rubber ring 4. The rubber ring 4 is squeezed by the pressure plate 8 and fits against the inner wall of the sealing cylinder 1. After being squeezed by the pressure plate 8, the rubber ring 4 expands radially and forms an interference fit with the outer wall of the cable body 2 and the inner wall of the sealing cylinder 1, blocking the penetration of external contaminants. At the same time, after the threaded cylinder 6 is tightened through the threaded groove 5, it applies axial pressure to the rubber ring 4, enhancing the sealing stability. Moreover, the elastic deformation of the rubber ring 4 can adapt to the slight displacement of the cable body 2 (such as vibration environment), avoiding sealing failure.

[0024] Working principle: In use, first, the two cable bodies 2 to be connected are passed through the rubber rings 4 respectively. Then, one of the cable bodies 2 is passed through the inside of the sealing cylinder 1 and out through the inside of the corresponding retaining ring 3. The two cable bodies 2 are then connected. After that, the cable body 2 is pulled so that its connection position is between the two retaining rings 3. Then, the handle 11 drives the arc block 10 to rotate, so that the threaded cylinder 6 rotates and moves into the inside of the sealing cylinder 1. The threaded cylinder 6 drives the pressure plate 8 to squeeze the rubber ring 4 through the connecting plate 7. Due to the presence of the retaining ring 3, the rubber ring 4 is only squeezed and does not move, so that the side of the rubber ring 4 is pressed and contacts the inner wall of the sealing cylinder 1. At the same time, the fitting hole 16 opened in the rubber ring 4 contacts the outer surface of the cable body 2 through compression deformation, thereby achieving the purpose of sealing the connection end of the two cables. Finally, the end cap 13 is passed through the cable body 2 and clamped at both ends of the sealing cylinder 1. When the diameter of the cable body 2 changes, the rubber ring 4 has a certain elasticity and deformation ability, so it can be used for cable bodies 2 of different diameters, which improves the applicability of the device.

[0025] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A sealing structure for cable connection, comprising a sealing cylinder (1), characterized in that: The cable body (2) slides through the inside of the sealing cylinder (1). A retaining ring (3) is fixedly connected to the inner wall of the sealing cylinder (1). A rubber ring (4) is provided on one side of the retaining ring (3). The outer surface of the rubber ring (4) is slidably connected to the inner wall of the sealing cylinder (1). A threaded groove (5) is opened on the inner wall of the sealing cylinder (1). A threaded cylinder (6) is threadedly connected to the outer surface of the threaded groove (5). A connecting plate (7) is fixedly connected to the outer surface of the threaded cylinder (6), and a pressure plate (8) is fixedly connected to the outer surface of the connecting plate (7). The outer surface of the pressure plate (8) is slidably connected to the outer surface of the rubber ring (4). The rubber ring (4) is squeezed by the pressure plate (8) and fits against the inner wall of the sealing cylinder (1).

2. The sealing structure for cable connection according to claim 1, characterized in that: The outer surface of the retaining ring (3) is provided with a circular hole (9), and the cable body (2) passes through the interior of the circular hole (9).

3. The sealing structure for cable connection according to claim 1, characterized in that: An arc-shaped block (10) is fixedly connected to the inner wall of the threaded cylinder (6), and a handle (11) is fixedly connected to one end of the arc-shaped block (10).

4. The sealing structure for cable connection according to claim 1, characterized in that: One end of the sealing cylinder (1) is provided with a groove (12), and an end cap (13) is attached to the inner wall of the groove (12).

5. A sealing structure for cable connection according to claim 4, characterized in that: The end cap (13) has a perforation (14) inside, and the outer surface of the cable body (2) is slidably connected to the inner wall of the perforation (14).

6. The sealing structure for cable connection according to claim 1, characterized in that: The inner wall of the sealing cylinder (1) is fixedly connected to two retaining rings (3), which form a cavity (15) inside the sealing cylinder (1). The connection part of the two cable bodies (2) is located inside the cavity (15).

7. A sealing structure for cable connection according to claim 1, characterized in that: The outer surface of the rubber ring (4) is provided with a fitting hole (16), and the outer surface of the fitting hole (16) is slidably connected to the outer surface of the cable body (2).

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