Hoop type rubber joint
By setting a sealing ring on the inner wall of the rubber joint and using pipe vibration to promote its expansion and fit, the joint folds and water leakage caused by clamp tightening are solved, which significantly improves the sealing effect.
Patent Information
- Application Number
- CN202422094266.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-28
AI Technical Summary
When the pipe diameter of the existing rubber joints is smaller than the inner diameter of the joint, the clamp tightening causes the joint to fold at both ends, which cannot fully fit the outer wall of the pipe, resulting in water leakage and reducing the sealing effect.
A sealing ring is provided on the inner wall of the rubber joint between the clamp and the pipe. The sealing ring is closely connected with the pipe, and the vibration of the pipe forces the sealing ring to expand, promoting the fit between the sealing ring and the pipe surface, eliminating gaps, and avoiding water leakage.
Through the expansion and fit of the sealing ring, the gap between the sealing ring and the pipe is eliminated to the greatest extent, significantly improving the sealing effect and preventing water leakage.
Smart Images
Figure CN222963526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rubber joints, and specifically, to a clamp-type rubber joint. Background Art
[0002] A clamp-type rubber joint is a device commonly used for pipeline connection, usually used to connect two sections of pipelines or between a pipeline and a device to achieve the purpose of sealing and connection. This kind of joint is usually made of rubber, has flexibility and durability, can absorb vibration in the pipeline system, compensate for the displacement between pipelines, and reduce the noise and vibration transmission in the pipeline system. Clamps are installed at both ends of the joint, and the two ends of the joint can be fixed to the pipeline through the clamps.
[0003] For the existing rubber joints, when they are fixed to the pipeline by clamps, when the pipeline diameter is smaller than the inner diameters of both ends of the rubber joint, the tightened clamps will cause wrinkles at both ends of the rubber joint. These wrinkles will prevent the rubber joint from completely fitting with the outer wall of the pipeline, resulting in gaps, and further leading to water leakage, reducing the sealing effect of the rubber joint. Summary of the Utility Model
[0004] The utility model provides a clamp-type rubber joint, which can set a sealing ring on the inner wall of the rubber joint between the clamp and the pipeline, make the sealing ring tightly abut against the pipeline, and use the vibration of the pipeline to force the sealing ring to expand, thereby promoting the fitting of the sealing ring with the pipeline surface, eliminating the gap between the sealing ring and the pipeline to the greatest extent, avoiding water leakage caused by the wrinkles of the rubber joint, and effectively improving the sealing effect of the device.
[0005] Therefore, the adopted technical solution is as follows:
[0006] A clamp-type rubber joint includes a rubber joint. Clamps are sleeved and fixed at both ends of the rubber joint. A sealing ring is fixed on the inner wall of the rubber joint at the position where the clamps are located. The sealing ring has a cavity inside. An expansion block that abuts against the inner wall of the sealing ring is fixed in the cavity. A plurality of heat generating components distributed in a circular array are also fixed inside the cavity. The heat generating component includes a first friction block and a second friction block that abut against each other. The other ends of the first friction block and the second friction block that do not contact each other are respectively connected to the expansion block and the sealing ring.
[0007] Further, friction lines are engraved on one end of the first friction block and the second friction block that abut against each other.
[0008] Further, first mounting blocks are inlaid on the outer walls of both ends of the rubber joint. A color-changing block is fixed inside the first mounting block. One side of the sealing ring is fixed with a water-absorbing fiber ring. One end of the water-absorbing fiber ring extends into the first mounting block and is connected to the color-changing block.
[0009] A further technical solution lies in that the water-absorbing fiber ring is fixed to the outer side of the sealing ring.
[0010] A further technical solution lies in that mounting openings are also formed in the side walls at both ends of the rubber joint. An movable block is provided inside the mounting opening. Both sides of the movable block are respectively connected to the side wall of the mounting opening through a spring. The spring is arranged along the axial direction of the rubber joint. In the natural state of the spring, the movable block is located at the center of the mounting opening. An adhesive sticker is fixed to the inner end of the movable block.
[0011] A further technical solution lies in that a protective side wall surrounds the mounting opening, and scale lines are engraved on the protective side wall.
[0012] A further technical solution lies in that the movable block and the protective side wall are slidably connected through a slide rail.
[0013] The working principle and beneficial effects of the present application are as follows:
[0014] 1. By arranging a sealing ring on the inner wall of the rubber joint between the clamp and the pipeline, the sealing ring is tightly abutted against the pipeline, and the vibration of the pipeline is used to force the sealing ring to expand, thereby promoting the fitting of the sealing ring to the surface of the pipeline, eliminating the gap between the sealing ring and the pipeline to the greatest extent, avoiding water leakage caused by the wrinkles generated by the rubber joint, and effectively improving the sealing effect of the device.
[0015] 2. Through the arrangement of the color-changing block and the water-absorbing fiber ring, the user can timely discover water leakage and thus take remedial measures in time.
[0016] 3. Through the arrangement of the movable block, it is convenient for the user to observe whether relative displacement occurs between the rubber joint and the pipeline and the degree of displacement, thereby reminding the user whether it is necessary to reinforce the clamp to prevent water leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The following further describes the present application in detail with reference to the drawings and specific embodiments.
[0018] Figure 1 is a schematic diagram of the overall structure of the present application;
[0019] Figure 2 is a schematic diagram of the partial structure of the present application;
[0020] Figure 3 is a schematic diagram of the front partial sectional structure of the present application;
[0021] Figure 4 is Figure 3 the enlarged schematic diagram at A in
[0022] Figure 5 Schematic diagram of the partial explosion structure of the present application;
[0023] Figure 6 Schematic diagram of the internal structures of the first mounting block and the mounting opening described in the present application;
[0024] Figure 7 Schematic diagram of the bottom structure of the movable block described in the present application.
[0025] Among them, the reference numerals in the figures are as follows:
[0026] 1, rubber joint; 2, clamp; 3, sealing ring; 4, expansion block; 5, heating component; 501, first friction block; 502, second friction block; 6, water-absorbing fiber ring; 7, first mounting block; 8, color-changing block; 9, mounting opening; 10, movable block; 11, spring; 12, adhesive tape. Detailed implementation manners
[0027] Next, embodiments of the present utility model will be combined to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.
[0028] As Figures 1 - 4 shown, the present application provides a clamp-type rubber joint, including a rubber joint 1. Clamps 2 are sleeved and fixed at both ends of the rubber joint 1. It is characterized in that a sealing ring 3 is fixed on the inner wall of the rubber joint 1 at the position where the clamp 2 is located. The sealing ring 3 has a cavity inside. An expansion block 4 that abuts against the inner wall of the sealing ring 3 is fixed inside the cavity; a plurality of heat-generating components 5 distributed in a circular array are also fixed inside the cavity. The heat-generating component 5 includes a first friction block 501 and a second friction block 502 that abut against each other. The other ends of the first friction block 501 and the second friction block 502 that do not contact each other are respectively connected to the expansion block 4 and the sealing ring 3. Friction lines are engraved on one end of the first friction block 501 and the second friction block 502 that abut against each other.
[0029] In this solution, the cavity inside the sealing ring 3 is filled with air, making the sealing ring 3 arched. The user places the rubber joint 1 between a pair of pipes to be connected, and inserts the mutually approaching ends of the pair of pipes into the two ends of the rubber joint 1 respectively. Then, by tightening a pair of clamps 2, the two ends of the rubber joint 1 are contracted, squeezing the outer walls of the pipes, so as to fix the rubber joint 1 to the outer ends of the pipes. Rubber has good sealing performance. When the rubber joint 1 is in close contact with the outer ends of the pipes, it can effectively prevent water leakage. Therefore, in this solution, after the user tightens the clamp 2, the sealing ring 3 is squeezed between the rubber joint 1 and the pipes, and the air inside the sealing ring 3 is compressed. Since the sealing ring 3 has the ability to deform, the inner end of the sealing ring 3 is closely attached to the outer surface of the pipes, effectively reducing the existence of gaps between the sealing ring 3 and the pipes.
[0030] When water flows through the pipes, the pipes will inevitably vibrate, and the vibration of the pipes will cause the pipes to continuously squeeze the sealing ring 3, so that multiple first friction blocks 501 and second friction blocks 502 inside the sealing ring 3 rub against each other during the squeezing. Friction grooves are provided at the mutually approaching ends of the first friction blocks 501 and the second friction blocks 502, and both the first friction blocks 501 and the second friction blocks 502 can be made of polyethylene material, which has good wear resistance and a low friction coefficient, and can quickly heat up and release heat through friction. The expansion block 4 can be made of polyethylene foam material, which has the characteristics of light weight and softness, and can expand rapidly after absorbing a small amount of heat. Therefore, after the first friction blocks 501 and the second friction blocks 502 generate heat by friction, the expansion block 4 can absorb the heat released by them and expand, so as to extrude the sealing ring 3 outward from the inner side of the sealing ring 3, making the sealing ring 3 fit more closely with the pipes, eliminating gaps to the greatest extent, and ensuring the sealing effect of the rubber joint 1.
[0031] As Figures 5 - 6 shown, first mounting blocks 7 are inlaid on the outer walls of both ends of the rubber joint 1, a color-changing block 8 is fixed inside the first mounting block 7, a water-absorbing fiber ring 6 is fixed on one side of the sealing ring 3, and one end of the water-absorbing fiber ring 6 extends into the first mounting block 7 and is connected to the color-changing block 8. Among them, the water-absorbing fiber ring 6 is fixed on the outer side of the sealing ring 3.
[0032] In the existing rubber joint, once water leakage occurs, if the amount of water leakage is small, it is difficult for users to detect, which easily causes waste of water sources. In this solution, once water leakage occurs in the rubber joint 1, the water flow will surely leak through the gap between the sealing ring 3 and the pipeline. Then, after the water leaks, it will first contact the water-absorbing fiber ring 6. The water-absorbing fiber ring 6 will quickly absorb the water and conduct the water to the color-changing block 8. The color-changing block 8 can be made of water-sensitive paper and will change color significantly when encountering water. Therefore, once the user observes that the color-changing block 8 changes color during use, it means that the pipeline has leaked, and the user can take remedial measures in time.
[0033] As Figures 6 - 7 shown, mounting openings 9 are also formed in the side walls at both ends of the rubber joint 1. An movable block 10 is arranged inside the mounting opening 9. Both sides of the movable block 10 are respectively connected with the side wall of the mounting opening 9 through a spring 11. The spring is arranged along the axial direction of the rubber joint 1. In the natural state of the spring, the movable block 10 is located at the center position of the mounting opening 9. A sticker 12 is fixed to the inner end of the movable block 10. The periphery of the mounting opening 9 is surrounded by a protective side wall, and scale lines are engraved on the protective side wall. The movable block 10 and the protective side wall are slidably connected through a slide rail.
[0034] In the existing clamp-type rubber joint, if the clamp is not tightened during the fixing process, it is difficult for users to detect. And in the long-term vibration environment of the water pipe, the joint is prone to relative displacement with the pipeline, which easily leads to water leakage or even the detachment of the joint. In this solution, the user can tear off the sticker 12 at the bottom end of the movable block 10 in advance. After the pipeline is inserted into the inner side of the rubber joint 1 and fixed by the clamp 2, the user presses down the movable block 10, so that the movable block 10 is adhered to the surface of the pipeline through the sticker 12. A pair of springs 11 can keep the movable block 10 at the center position of the mounting opening 9. Once the pipeline and the rubber joint 1 have relative displacement, the movable block 10 will slide in the mounting opening 9 and cause extrusion or stretching of the spring 11. By regularly comparing the position of the movable block 10 with the scale line, the user can know whether the rubber joint 1 has displacement and the degree of displacement, so as to reinforce the clamp 2 in time to prevent water leakage.
[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A clamp-type rubber joint, comprising a rubber joint (1), wherein both ends of the rubber joint (1) are sleeved and fixed with clamps (2), characterized in that: A sealing ring (3) is fixed on the inner wall of the rubber joint (1) at the location of the clamp (2); the sealing ring (3) has a cavity inside, and an expansion block (4) is fixed in the cavity and is tightly pressed against the inner wall of the sealing ring (3); A plurality of heating components (5) distributed in an annular array are also fixed inside the cavity, and the heating components (5) include a first friction block (501) and a second friction block (502) abutting against each other, and the other ends of the first friction block (501) and the second friction block (502) that are not in contact with each other are respectively connected to the expansion block (4) and the sealing ring (3).
2. A clamp-type rubber joint according to claim 1, characterized in that: The ends of the first friction block (501) and the second friction block (502) that abut against each other are both engraved with friction lines.
3. The clamp-type rubber joint according to claim 1, characterized in that: First mounting blocks (7) are inlaid on the outer walls of both ends of the rubber joint (1), a color-changing block (8) is fixed inside the first mounting block (7), a water-absorbing fiber ring (6) is fixed on one side of the sealing ring (3), and one end of the water-absorbing fiber ring (6) extends to the inside of the first mounting block (7) and is connected to the color-changing block (8).
4. The clamp-type rubber joint according to claim 3, characterized in that: The water-absorbing fiber ring (6) is fixed on the outside of the sealing ring (3).
5. The clamp-type rubber joint according to claim 1, characterized in that: The side walls at both ends of the rubber joint (1) are provided with mounting openings (9), and a movable block (10) is provided inside the mounting opening (9). Both sides of the movable block (10) are connected to the side walls of the mounting opening (9) via a spring (11), respectively. The spring is arranged along the axis of the rubber joint (1), and in the natural state of the spring, the movable block (10) is located at the center of the mounting opening (9), and an adhesive tape (12) is fixed to the inner end of the movable block (10).
6. The clamp-type rubber joint according to claim 5, characterized in that: The installation opening (9) is surrounded by a protective side wall, and scale lines are engraved on the protective side wall.
7. The clamp-type rubber joint according to claim 6, characterized in that: The movable block (10) is slidably connected to the protective side wall via a slide rail.