Pressure-resistant rubber joint with high bearing capacity
By installing pressure-bearing components, including collars and elastic elements or elastic bands, on the flange of the rubber joint, the problems of creep and bursting of the rubber joint under high pressure are solved, thus improving the service life of the rubber joint.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-03
AI Technical Summary
Rubber joints are prone to creep and bursting under long-term high pressure, which affects their service life.
Flanges are installed at both ends of the rubber joint, and pressure-bearing components, including collars and elastic elements or elastic bands, are set on the flanges to distribute pressure and limit the expansion of the rubber body.
By utilizing the pressure-sharing components, the pressure on the rubber body during material conveying is reduced, thus extending the service life of the rubber joint.
Smart Images

Figure CN224079817U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline connection technology, and in particular to a high-load-bearing pressure-resistant rubber joint. Background Technology
[0002] Rubber joints are flexible connection components that compensate for displacement, vibration, and noise in pipeline systems through elastic deformation. They typically consist of an inner rubber layer, a reinforcing layer, and an outer rubber layer. Currently, these products are widely used in pipeline systems in water supply and drainage, chemical, and power industries, primarily serving functions such as vibration reduction, noise reduction, compensation for thermal expansion and contraction, and mitigation of installation deviations.
[0003] Because rubber deforms during material transport, rubber joints are prone to creep and bursting under long-term high pressure. Utility Model Content
[0004] To address the aforementioned problems, this application provides a high-load-bearing pressure-resistant rubber joint.
[0005] This application provides a high-load-bearing pressure-resistant rubber joint, which adopts the following technical solution:
[0006] A high-load-bearing pressure-resistant rubber joint includes a rubber body, with flanges installed at both ends along the length of the rubber body. Each flange has a pressure-bearing component on the side closest to the rubber body for distributing pressure to the rubber body.
[0007] Optionally, the pressure-bearing assembly includes two collars, each collar corresponding to a flange, the two collars being arranged opposite each other, and each collar including two half-rings, both of which are slidably connected to the corresponding flange.
[0008] Optionally, an elastic element is provided between the two semi-rings.
[0009] Optionally, some of the elastic elements are springs.
[0010] Optionally, each of the two semi-rings includes two sub-rings, which are arranged opposite to each other.
[0011] Optionally, a number of elastic bands are provided between the two sub-rings located on the same half-ring.
[0012] In summary, this application includes at least one of the following beneficial technical effects:
[0013] 1. When conveying materials, if the flow rate of the material is too large, causing the rubber body to expand, the rubber body will come into contact with the pressure-bearing component during the expansion process. The pressure-bearing component will distribute the pressure on the rubber body, thereby slowing down the expansion of the rubber body, reducing the pressure on the rubber body during material conveying, and thus improving the service life of the rubber body.
[0014] 2. When the rubber body expands, it contacts the semi-ring, and the semi-ring slides on the flange. Under the action of the elastic element, the expansion range of the rubber body is limited, thereby reducing the pressure on the rubber body during material transportation and thus improving the service life of the rubber body.
[0015] 3. When the rubber body expands, it comes into contact with several elastic bands. The elastic bands limit the expansion range of the rubber body, thereby reducing the pressure on the rubber body during material transportation and thus improving the service life of the rubber body. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1.
[0017] Figure 2 This is a cross-sectional schematic diagram highlighting the semi-ring in Example 1.
[0018] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2.
[0019] Figure 4 This is a cross-sectional schematic diagram highlighting the elastic band in Example 2.
[0020] Explanation of reference numerals in the attached drawings: 1. Rubber body; 2. Flange; 3. Collar; 4. Half ring; 5. Elastic element; 6. Elastic band. Detailed Implementation
[0021] The present application will be further described in detail below with reference to all the accompanying drawings.
[0022] This application discloses a high-load-bearing pressure-resistant rubber joint.
[0023] Example 1:
[0024] Reference Figure 1 and Figure 2 A high-load-bearing pressure-resistant rubber joint includes a rubber body 1. Flanges 2 are installed at both ends of the rubber body 1 along its length. Pressure-bearing components are provided on the side of each flange 2 near the rubber body 1 to distribute pressure on the rubber body 1. When conveying materials, if the flow rate of the material is too large, causing the rubber body 1 to expand, the rubber body 1 comes into contact with the pressure-bearing components during the expansion process. The pressure-bearing components distribute pressure on the rubber body 1, thereby slowing down the expansion amplitude of the rubber body 1, reducing the pressure on the rubber body 1 during material conveying, and thus improving the service life of the rubber body 1.
[0025] Reference Figure 1 and Figure 2The pressure-bearing component includes two collars 3, each corresponding to a flange 2. The two collars 3 are arranged opposite each other, and each collar 3 includes two half-rings 4, which are slidably connected to the corresponding flange 2. Each half-ring 4 has a sliding rod on the side near the corresponding flange. The flange 2 has a sliding groove adapted to the sliding rod. The end of the sliding rod away from the half-ring 4 has a sliding block, and the flange 2 also has a sliding groove adapted to the sliding block. When conveying materials, if the flow rate of the material is too large, the rubber body 1 will expand. During the expansion process, the rubber body 1 will come into contact with the two half-rings 4. As the rubber body 1 expands, it will drive the two half-rings 4 to move away from each other.
[0026] Reference Figure 1 and Figure 2 An elastic element 5 is provided between the two semi-rings 4. As the rubber body 1 continues to expand, the tension of the elastic element 5 will cause the two semi-rings 4 to move closer to each other.
[0027] In this embodiment, the elastic element 5 is a spring, which can pull the two half-rings 4.
[0028] Reference Figure 1 and Figure 2 The two semi-rings 4 distribute pressure on the rubber body 1 under the tension of the elastic element 5, which can reduce the expansion range of the rubber body 1, thereby reducing the pressure on the rubber body 1 during material transportation and thus improving the service life of the rubber body 1.
[0029] Example 2:
[0030] Reference Figure 3 and Figure 4 The difference between Example 2 and Example 1 lies in the setting of the semi-ring 4.
[0031] Reference Figure 3 and Figure 4 Each of the two semi-rings 4 includes two sub-rings, which are arranged opposite each other. When the rubber body 1 expands, the rubber body 1 contacts several semi-rings 4, and several semi-rings 4 slide on the flange 2. Under the action of the elastic element 5, the expansion range of the rubber body 1 is limited. The contact area between several semi-rings 4 and the rubber body 1 is large, which further reduces the pressure on the rubber body 1 during material conveying, thereby improving the service life of the rubber body 1.
[0032] Reference Figure 3 and Figure 4 Several elastic bands 6 are provided between two sub-rings on the same half ring 4. The rubber body 1 is in contact with the elastic bands 6. Under the action of the elastic bands 6, the expansion range of the rubber body 1 is limited, thereby reducing the pressure on the rubber body 1 during material conveying and thus improving the service life of the rubber body 1.
[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-load-bearing pressure-resistant rubber joint, comprising a rubber body (1), characterized in that: Flanges (2) are installed at both ends of the rubber body (1) along its length. Each of the two flanges (2) is provided with a pressure-bearing component on the side of the rubber body (1) to distribute pressure to the rubber body (1). The pressure-bearing component includes two collars (3), each collar (3) corresponding to a flange (2) one-to-one. The two collars (3) are arranged opposite to each other. Each collar (3) includes two half-rings (4), and the two half-rings (4) are slidably connected to the corresponding flange (2). An elastic element (5) is provided between the two semi-rings (4); Some of the elastic elements (5) are springs.
2. The high-load-bearing pressure-resistant rubber joint according to claim 1, characterized in that: Both of the two semi-rings (4) include two sub-rings, which are arranged opposite to each other.
3. A high-load-bearing pressure-resistant rubber joint according to claim 2, characterized in that: Several elastic bands (6) are provided between the two sub-rings located on the same half ring (4).