Waterproof rubber part compatible with cables with various cable diameters
By designing a rubber component structure compatible with multiple wire diameters, including a sleeve, rubber ring, and liquid bladder, the problem of rubber components being unable to adapt to multiple wire diameters is solved, thereby improving the sealing performance and service life of various cables, and providing wire diameter detection and buffer cooling functions.
Patent Information
- Application Number
- CN202520200014.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-08
AI Technical Summary
Existing rubber components cannot accommodate cables of various diameters, resulting in poor waterproof and dustproof performance.
A rubber component structure was designed, comprising an outer wall, a sleeve, a rubber ring, a liquid bladder, and a viewing tube. The rubber ring has tensile strength, the liquid bladder is used for cushioning and shock absorption, the viewing tube determines the wire diameter by the liquid level, and a baffle plate prevents the liquid bladder from expanding, ensuring a sealing effect.
It achieves compatibility with cables of various diameters, improves sealing and service life, can judge wire diameter compatibility in real time, prevents damage to rubber parts, and has cooling and buffering functions.
Smart Images

Figure CN223967604U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cable protection technology, specifically relating to a rubber component for waterproofing cables of various diameters. Background Technology
[0002] Rubber components designed for waterproofing cables of various diameters are the result of comprehensive consideration of material selection, structural design, processing technology, and performance testing. By selecting appropriate rubber materials, optimizing structural design, and strictly controlling the production process, high-quality rubber components that possess both excellent sealing performance and adaptability to the needs of cables of different diameters can be manufactured.
[0003] Currently, a waterproof seal for a device port used for connecting cables, with announcement number CN218731988U, is available on the market. It includes a plug and a tail forming a sheath. One end of the plug has a sealing structure and a locking structure. The sealing structure seals the connection between the plug and the device port, and the locking structure locks the connection between the plug and the device port. The plug is made of rigid plastic, and one end of an elastic rubber tube is sealed, while the other end is fixedly fitted onto the outer wall of the second end of the plug. When a device has unused ports, this port seal can protect the device from environmental influences.
[0004] However, there is also a problem: cables generally come in various models, and when rubber parts are used, the sizes will be inconsistent, causing the rubber parts to fail to perform their function of waterproofing and dustproofing. Utility Model Content
[0005] This solution provides a rubber component for waterproofing cables of various wire diameters, addressing the problem that existing rubber components cannot adapt to cables of different wire diameters.
[0006] This solution provides a rubber component for waterproofing cables of various diameters, including an outer wall with a sleeve through which the cable passes; and a rubber ring in the shape of a funnel, which is fixedly connected to the sleeve at the larger diameter section, and which cooperates with the cable, and has a certain tensile strength.
[0007] The principle of this solution is as follows: when the operator inserts the cable into the sleeve, the cable will come into contact with the rubber ring. If the cable diameter is large, the rubber ring will be stretched open, allowing the cable to still pass through. At the same time, the rubber ring can play a sealing role.
[0008] The advantages of this solution are: the outer wall provides support to prevent collapse, the middle sleeve has space for clearance, and the rubber ring structure is funnel-shaped, making the sleeve compatible with various wire diameters of different specifications.
[0009] Furthermore, it also includes a circular rib, which is fixedly connected to the small diameter section of the rubber ring. There is a transitional circular rib at the bottom small diameter section, primarily to prevent the rubber component from cracking when the wire harness is inserted, and also to reinforce IP protection for cables of different sizes.
[0010] Furthermore, the sleeve includes a first sleeve and a second sleeve, with the first sleeve and the second sleeve fitting together. The double sleeve ensures that two cables pass through the seal.
[0011] Furthermore, it also includes a liquid bladder, which is fixedly connected to the rubber ring and located between the rubber ring and the sleeve. The liquid bladder can act as a buffer and shock absorber. When the cable vibrates or sways, the rubber ring is easily subjected to high-frequency wear. At this time, the liquid bladder can absorb and reduce the vibration, thereby improving the service life of the rubber ring.
[0012] Furthermore, it also includes a viewing tube and a piston. The viewing tube is a transparent pipe, which is fixedly connected to the outer wall and communicates with the liquid bladder. The viewing tube is higher than the liquid bladder and has graduations. The piston is slidably and sealingly connected to the viewing tube, and the liquid bladder contains viewing fluid.
[0013] The rubber ring diameter of this solution is adaptable to a certain range. Many cables may not have their diameter marked, and sometimes operators need to know the cable diameter but do not have other tools.
[0014] Based on the principle of communicating vessels, this solution ensures that when the liquid bladder is connected to the viewing tube, the liquid level in the bladder will be reflected in the viewing tube, allowing the user to determine the initial liquid level. When the cable is inserted, the smaller diameter section of the rubber ring is compressed, causing it to press against the liquid bladder. This compression forces liquid towards the viewing tube, causing the liquid level in the viewing tube to rise. The cable diameter is then determined by the rise in liquid level. Furthermore, if the liquid level in the viewing tube exceeds the set height, the operator can detect that the cable is incompatible with the device and replace it promptly, preventing the device from failing to achieve its intended effect and reducing its waterproofing performance.
[0015] Furthermore, it also includes a baffle plate, which is fixedly connected to the rubber ring and slidably connected to the outer wall. The baffle plate closes the liquid bladder between the rubber ring and the sleeve, preventing the liquid bladder from expanding in other directions when the rubber ring squeezes it, thus ensuring that liquid can enter the viewing tube. When the rubber ring moves, the baffle plate moves accordingly. Attached Figure Description
[0016] Figure 1 This is a structural diagram of a rubber component used for waterproofing cables of various diameters.
[0017] Figure 2 This is a cross-sectional view of a rubber component used for waterproofing cables of various diameters.
[0018] Figure 3 This is a cross-sectional view of a rubber component used for waterproofing cables of various wire diameters.
[0019] The reference numerals in the accompanying drawings include: 1. Outer wall; 2. First sleeve; 3. Second sleeve; 4. Liquid bladder; 5. Baffle plate; 6. Piston; 7. Viewing tube; 21. First rubber ring; 22. First circular rib; 23. First limiting ring; 31. Second rubber ring; 32. Second circular rib; 33. Second limiting ring. Detailed Implementation
[0020] As attached Figure 1 , Figure 2 As shown:
[0021] This invention relates to a wire guide structure compatible with various wire diameters and achieving IP67 protection. The material used is silicone rubber with EPDM backing, and it features self-lubricating oil. The product's structural features include an outer wall 1 that supports the sleeve, and a funnel-shaped rubber ring at the wire threading section.
[0022] This solution provides a rubber component for waterproofing cables of various diameters, including an outer wall 1 and rubber rings. The outer wall 1 has two sleeves extending through it: a first sleeve 2 and a second sleeve 3. The two sleeves are the same size and on the same horizontal line, symmetrically arranged, and the sleeves allow cables to pass through. The first sleeve 2 has a first rubber ring 21, and the second sleeve 3 has a second rubber ring 31. The first rubber ring 21 and the second rubber ring 31 are identical.
[0023] The rubber ring is funnel-shaped and is fixedly connected to the sleeve at the larger diameter section. The rubber ring and the sleeve are parallel. The rubber ring in this embodiment is suitable for cables with a diameter of 2.5-5.0mm, and the rubber ring has a certain tensile strength.
[0024] The first sleeve 2 is provided with a first circular rib 22 and a first limiting ring 23. The first circular rib 22 is fixedly connected to the small diameter part of the rubber ring, and the first circular rib 22 and the rubber ring are coaxially arranged. The first limiting ring 23 is fixedly connected to the sleeve, and the first limiting ring 23 is located above the large diameter part of the rubber ring.
[0025] The second sleeve 3 is provided with a second circular rib 32 and a second limiting ring 33. The second circular rib 32 is fixedly connected to the small diameter part of the rubber ring, and the second circular rib 32 and the rubber ring are coaxially arranged. The second limiting ring 33 is fixedly connected to the sleeve, and the second limiting ring 33 is located above the large diameter part of the rubber ring.
[0026] As attached Figure 2 , Figure 3 As shown:
[0027] It also includes a liquid bladder 4, which is fixedly connected to a rubber ring and is located between the rubber ring and the sleeve. The liquid bladder 4 is an annular liquid bladder 4, and the liquid inside the liquid bladder 4 is silicone oil with a boiling point of 500 degrees Celsius. The silicone oil is not easily volatile, which can ensure the stability of the viewing tube 7 and also play a role in cooling. When the cable heats up, the silicone oil can absorb heat and cool down.
[0028] The liquid bladder 4 can act as a buffer and shock absorber. When the cable vibrates or sways, the rubber ring is easily worn at high frequency. At this time, the liquid bladder 4 can absorb and reduce the vibration, thus improving the service life of the rubber ring.
[0029] It also includes a viewing tube 7 and a piston 6. The viewing tube 7 is a transparent pipe. The viewing tube 7 is fixedly connected to the outer wall 1 and communicates with the liquid bladder 4. The viewing tube 7 is higher than the liquid bladder 4. The viewing tube 7 is engraved with graduations. The piston 6 is slidably sealed to the viewing tube 7. The liquid bladder 4 contains viewing fluid.
[0030] It also includes a baffle plate 5, which is fixedly connected to the rubber ring and slidably connected to the outer wall 1. The baffle plate 5 closes the liquid bladder 4 between the rubber ring and the sleeve, preventing the liquid bladder 4 from expanding in other directions when the rubber ring squeezes it, thus ensuring that the liquid can enter the viewing tube 7. When the rubber ring moves, the baffle plate 5 moves accordingly.
[0031] As attached Figure 1 , Figure 2 , Figure 3 As shown:
[0032] The principle of this solution is as follows: when the operator inserts the cable into the sleeve, the cable will come into contact with the rubber ring. If the cable diameter is large, the rubber ring will be stretched open, allowing the cable to still pass through. At the same time, the rubber ring can play a sealing role.
[0033] When an oversized cable is inserted, the limiting ring will block the cable from entering, preventing the rubber ring from being damaged. After the cable is inserted, the smaller diameter section of the rubber ring will be compressed, causing the rubber ring to compress the liquid bladder 4. Due to the baffle plate 5, the compressed liquid bladder 4 will force liquid towards the viewing tube 7. At this time, the liquid level in the viewing tube 7 will rise, and the cable diameter can be determined by the rise height. At the same time, the liquid bladder 4 also acts as a buffer and shock absorber. When the cable vibrates or sways, the rubber ring is prone to high-frequency wear. The liquid bladder 4 can absorb and reduce the vibration, thus improving the service life of the rubber ring.
[0034] The beneficial effects of this design are as follows: 1. The outer wall 1 provides support to prevent collapse, and the middle has a space for clearance. The product structure is funnel-shaped, compatible with various wire diameters of different specifications. 2. The limiting ring will block excessively large cables from entering, preventing the rubber ring from being damaged. 3. There is a transitional rounded rib at the bottom for smaller wire diameters, mainly to prevent the rubber parts from breaking when the wire harness is inserted, and also to reinforce the IP protection of cables of different sizes. 4. The cable diameter can be determined through the viewing tube 7, solving the problem of not being able to determine the cable diameter when the device is compatible with multiple wire diameters. 5. The liquid in the liquid bladder 4 is silicone oil with a boiling point of 500 degrees Celsius. Silicone oil is not easily volatile, ensuring the stability of the viewing tube 7, and also has a cooling effect. When the cable heats up, the silicone oil can absorb heat and cool down.
[0035] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A rubber component for waterproofing cables of various diameters, comprising: Outer wall (1): The outer wall (1) is provided with a sleeve through which the cable passes; Its characteristic is that it further includes: Rubber ring: The rubber ring is funnel-shaped, and the large diameter part of the rubber ring is fixedly connected to the sleeve. The rubber ring cooperates with the cable, and the rubber ring has a certain tensile strength.
2. A rubber component for waterproofing cables of various wire diameters according to claim 1, characterized in that, It also includes circular ribs, which are fixedly connected to the small diameter part of the rubber ring.
3. A rubber component for waterproofing cables of various wire diameters according to claim 1, characterized in that, It also includes a limiting ring, which is fixedly connected to the sleeve and cooperates with a rubber ring.
4. A rubber component for waterproofing cables of various wire diameters according to claim 1, characterized in that, The sleeve includes a first sleeve (2) and a second sleeve (3), with the first sleeve (2) and the second sleeve (3) cooperating with each other.
5. A rubber component for waterproofing cables of various wire diameters according to claim 1, characterized in that, It also includes a liquid bladder (4), which is fixedly connected to a rubber ring and is located between the rubber ring and the sleeve.
6. A rubber component for waterproofing cables of various wire diameters according to claim 5, characterized in that, It also includes a viewing tube (7) and a piston (6). The viewing tube (7) is a transparent pipe. The viewing tube (7) is fixedly connected to the outer wall (1). The viewing tube (7) is connected to the liquid bladder (4) and the viewing tube (7) is higher than the liquid bladder (4). The viewing tube (7) is engraved with a scale. The piston (6) is slidably sealed to the viewing tube (7). The liquid bladder (4) contains viewing liquid.
7. A rubber component for waterproofing cables of various wire diameters according to claim 5, characterized in that, It also includes a baffle plate (5), which is fixedly connected to a rubber ring and slidably connected to the outer wall (1).