Rubber flexible joint for vehicle
By adopting a multi-layer structural design in the rubber soft joint, combining self-healing fluoroelastomer and nanofiber rubber composite materials, the problem of aging and cracking of rubber soft joints in complex environments is solved, achieving higher durability and lower maintenance costs.
Patent Information
- Application Number
- CN202421796392.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Automotive rubber soft joints are prone to aging, hardening or cracking in complex environments, affecting the sealing effect and performance, requiring frequent replacement, and high maintenance costs.
The multi-layer structure design is adopted for inner layer, outer layer and intermediate layer, where the inner layer is made of soft and corrosion-resistant self-healing fluoroelastomer, the outer layer is made of polymer rubber composite material with nanofiber added, and a quick connection mechanism is provided at both ends of the outer layer.
Improves overall durability of rubber soft joints, extends service life, reduces maintenance costs, and simplifies replacement process with quick connection mechanisms.
Smart Images
Figure CN222772844U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of joints, and in particular to a rubber flexible joint for vehicles. Background Art
[0002] Automotive rubber flexible joints are important components installed in automotive pipeline systems. They are mainly used to compensate for the displacement of pipelines caused by temperature differences, vibrations, etc., while absorbing and reducing the impact of vibrations on pipeline systems. This type of joint is made of a variety of materials, and different properties can be obtained through material adjustment to meet the needs of various complex working environments. Rubber flexible joints have good toughness and the ability to restore the original shape. They can not only repair pipeline tilting, but also reduce vibration and noise.
[0003] However, the operating environment of automobiles is complex and changeable. The rubber materials on general rubber flexible joints are prone to aging, hardening or cracking when facing a changing operating environment, which affects their sealing effect and performance. They need to be replaced frequently, which is troublesome and has high maintenance costs. Utility Model Content
[0004] In order to improve the durability of a rubber flexible joint for a vehicle, the present application provides a rubber flexible joint for a vehicle.
[0005] The present application provides a vehicle rubber flexible joint, which adopts the following technical solution:
[0006] A rubber flexible joint for a vehicle comprises an inner layer and an outer layer sleeved outside the inner layer, an intermediate layer is arranged between the inner layer and the outer layer, the inner layer is made of a soft and corrosion-resistant self-repairing fluororubber, the wall of the inner layer is arranged in a corrugated shape, the outer layer is made of a polymer rubber composite material with nanofiber added, the surface of the outer layer is arranged smoothly, thermal insulation cotton is laid in the intermediate layer, quick connection mechanisms are arranged at both ends of the outer layer, and the two ends of the outer layer are detachably connected to a vehicle pipeline through two sets of quick connection mechanisms.
[0007] By adopting the above technical scheme, the rubber flexible joint is set to a multilayer structure of an inner layer, an outer layer and an intermediate layer, wherein the inner layer is made of a soft and corrosion-resistant self-repairing fluororubber and is arranged in a corrugated shape, so that the inner layer can have good elasticity and buffering performance while conveying the medium in the pipeline, can absorb and disperse impact energy, and ensure the stability of the inner layer when the car is bumped during driving; the outer layer is set to be an outer layer made of a polymer rubber composite material with nanofibers added, and the surface of the outer layer is set smoothly. The nanofibers form countless tiny physical cross-linking points in the rubber, which can not only improve the mechanical strength of the rubber, but also prevent the diffusion of corrosive media inside the rubber, and the smooth surface makes the outer layer less susceptible to wear and tear by impurities in the environment, thereby improving the durability of the outer layer in a complex environment; thermal insulation cotton is arranged in the intermediate layer between the inner layer and the outer layer, so as to insulate the inner layer and the outer layer, reduce the probability that the extreme temperature in the working environment will have an adverse effect on the deformation of the inner layer material, etc., in summary, through the cooperation of the outer layer, the inner layer and the intermediate layer, the overall durability of the rubber flexible joint is greatly improved. Quick connection mechanisms are provided at both ends of the outer layer, and the outer layer is detachably connected to the automobile pipeline through the quick connection mechanism. Therefore, when the outer layer is damaged, the outer layer can be removed and replaced through the quick connection mechanism without replacing the rubber flexible joint as a whole. This is convenient and fast with high work efficiency.
[0008] Optionally, a plurality of reinforcement rings are evenly distributed on the inner side wall of the outer layer, and reinforcement ribs are provided between two adjacent reinforcement rings.
[0009] By adopting the above technical solution, a number of reinforcement rings are evenly fixed on the inner wall of the outer layer, and reinforcement ribs are installed between two adjacent reinforcement rings, thereby improving the deformation resistance of the outer layer and making the outer layer more durable.
[0010] Optionally, the quick connection mechanism includes:
[0011] a first connecting ring, the first connecting ring being arranged on the automobile pipeline;
[0012] a second connecting ring, the second connecting ring being disposed on the outer layer;
[0013] The third connecting half ring and the fourth connecting half ring, one end of the third connecting half ring and the fourth connecting half ring are rotatably installed together, and a limiting component is arranged on the other end of the third connecting half ring and the fourth connecting half ring, and the inner ring walls of the third connecting half ring and the fourth connecting half ring are provided with clamping grooves that are interconnected, and the third connecting half ring and the fourth connecting half ring clamp the first connecting ring and the second connecting ring in the clamping groove under the action of the limiting component.
[0014] By adopting the above technical solution, the outer layer is moved so that the second connecting ring is pressed against the first connecting ring, and then the third connecting half ring and the fourth connecting half ring are moved, and the clamping grooves on the third connecting half ring and the fourth connecting half ring are clamped with the first connecting ring and the second connecting ring. Finally, the limiting component is used to position the third connecting half ring and the fourth connecting half ring with the limiting column, so as to complete the connection between the outer layer and the pipeline; when the outer layer needs to be replaced, it is only necessary to unlock the limiting component, and then rotate the third connecting half ring and the fourth connecting half ring to disengage from the first connecting ring and the second connecting ring. The structure is simple and convenient.
[0015] Optionally, the limiting component includes:
[0016] A first limiting plate, wherein the first limiting plate is arranged on the third connecting half ring;
[0017] a second limiting plate, wherein the second limiting plate is arranged on the fourth connecting semi-ring;
[0018] A limiting screw, wherein the first limiting plate and the second limiting plate are respectively provided with a first through hole and a second through hole which are interconnected, and the limiting screw passes through the first through hole and the second through hole in sequence;
[0019] A limiting nut is threadedly connected to the limiting screw and pressed against the second limiting plate.
[0020] By adopting the above technical solution, when the third connecting half ring and the fourth connecting half ring are rotated to clamp the first connecting ring and the second connecting ring, the first limiting plate and the second limiting plate are pressed together, and then the limiting screw is moved to pass through the first through hole and the second through hole in sequence, and then the limiting nut is screwed on the limiting screw and pressed against the second limiting plate, so that the limiting work of the third connecting half ring and the fourth connecting half ring can be completed.
[0021] Optionally, the second connecting ring includes a transverse ring and a vertical ring, the transverse ring is passed through the inner layer, the transverse ring is pressed against the inner side wall of the inner layer, the vertical ring is arranged at the end of the transverse ring, the vertical ring is pressed against the end walls of the inner layer and the outer layer, the clamping grooves of the third connecting half ring and the fourth connecting half ring clamp the vertical ring and the first connecting ring, and the third connecting half ring and the fourth connecting half ring cooperate with the transverse ring to clamp the inner layer, the middle layer and the outer layer.
[0022] By adopting the above technical solution, the second connecting ring is set as a horizontal ring and a vertical ring, the horizontal ring is inserted into the inner layer and cooperates with the third connecting half ring and the fourth connecting half ring and the horizontal ring to clamp the inner layer, the middle layer and the outer layer, and the vertical ring cooperates with the first connecting ring to be clamped in the clamping groove, thereby completing the connection between the inner layer, the middle layer and the outer layer and the third connecting half ring and the fourth connecting half ring, and also completing the connection between the outer layer and the pipeline.
[0023] Optionally, an inclined chamfer is provided on one end of the transverse ring away from the vertical ring.
[0024] By adopting the above technical solution, an inclined chamfer is provided on the end of the transverse ring away from the vertical ring, so that when the medium inside the inner layer moves, the chamfer can guide the medium, thereby reducing the impact force of the medium on the transverse ring when moving, ensuring the medium conveying effect and the stability of the transverse ring.
[0025] Optionally, rubber sealing strips are provided on the inner ring walls of the third connecting half ring and the fourth connecting half ring.
[0026] By adopting the above technical solution, rubber sealing strips are installed on the inner ring walls of the third connecting half ring and the fourth connecting half ring, thereby improving the friction and sealing between the third connecting half ring and the fourth connecting half ring and the pipeline and the outer layer, ensuring the stability of the connection between the outer layer and the pipeline, and reducing the probability of medium leakage.
[0027] In summary, the present application includes at least one of the following beneficial technical effects:
[0028] 1. By setting the rubber flexible joint into a multi-layer structure of an inner layer, an outer layer and a middle layer, the outer layer, the inner layer and the middle layer work together, which greatly improves the overall durability of the rubber flexible joint;
[0029] 2. When the third connecting half ring and the fourth connecting half ring are rotated to clamp the first connecting ring and the second connecting ring, the first limiting plate and the second limiting plate are pressed together, and then the limiting screw is moved to pass through the first through hole and the second through hole in sequence, and then the limiting nut is screwed on the limiting screw and pressed against the second limiting plate, so that the limiting work of the third connecting half ring and the fourth connecting half ring can be completed;
[0030] 3. By installing rubber sealing strips on the inner ring walls of the third connecting half ring and the fourth connecting half ring, the friction and sealing between the third connecting half ring and the pipeline and the outer layer are improved, the stability of the connection between the outer layer and the pipeline is ensured, and the probability of medium leakage is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a three-dimensional structural schematic diagram of the present application;
[0032] Figure 2 It is a schematic diagram of the structure of the quick connection mechanism and the limit assembly in the present application, in which the second connection ring and the inner layer are exploded, and the outer layer side wall is cut away.
[0033] Figure numerals: 11, inner layer; 12, outer layer; 13, middle layer; 14, reinforcement ring; 15, reinforcement rib; 17, rubber sealing strip; 2, quick connection mechanism; 21, first connecting ring; 22, second connecting ring; 23, third connecting half ring; 24, fourth connecting half ring; 25, horizontal ring; 26, vertical ring; 3, limiting assembly; 31, first limiting plate; 32, second limiting plate; 33, limiting screw; 34, limiting nut. DETAILED DESCRIPTION
[0034] The following is combined with Figure 1 -Attached Figure 2 This application is described in further detail.
[0035] The embodiment of the present application discloses a rubber flexible joint for a vehicle.
[0036] Reference Figure 1 and Figure 2 The vehicle rubber flexible joint includes an inner layer 11 and an outer layer 12 sleeved outside the inner layer 11, and an intermediate layer 13 is provided between the inner layer 11 and the outer layer 12. The inner layer 11 is made of a soft and corrosion-resistant self-repairing fluororubber, and the wall of the inner layer 11 is arranged in a corrugated shape. The outer layer 12 is made of a polymer rubber composite material with nanofibers added, and the surface of the outer wall of the outer layer 12 is smooth. A plurality of reinforcing rings 14 are evenly distributed and fixedly installed on the inner wall of the outer layer 12 along the axial direction, and reinforcing ribs 15 are fixedly installed between two adjacent reinforcing rings 14. Insulation cotton 16 is laid in the intermediate layer 13.
[0037] Reference Figure 1 and Figure 2 The rubber flexible joint is arranged into a multi-layer structure of an inner layer 11, an outer layer 12 and an intermediate layer 13. The inner layer 11 is made of a soft and corrosion-resistant self-repairing fluororubber and is arranged in a corrugated shape, so that the inner layer 11 can have good elasticity and buffering performance while conveying the medium in the pipeline, and can absorb and disperse impact energy. The stability of the inner layer 11 is ensured when the car is bumped during driving.
[0038] Reference Figure 1 The outer layer 12 is made of a polymer rubber composite material with nanofibers added thereto, and the surface of the outer layer 12 is smooth. The nanofibers form numerous tiny physical cross-linking points in the rubber, which not only improve the mechanical strength of the rubber, but also prevent the diffusion of corrosive media inside the rubber. The smooth surface makes the outer layer 12 less susceptible to wear and tear by impurities in the environment, thereby improving the durability of the outer layer 12 in complex environments.
[0039] Reference Figure 1 and Figure 2Insulation cotton is arranged in the middle layer 13 between the inner layer 11 and the outer layer 12, so as to insulate the inner layer 11 from the outer layer 12, thereby reducing the probability that the extreme temperature in the working environment will have an adverse effect on the deformation of the material of the inner layer 11,
[0040] Reference Figure 1 and Figure 2 The outer layer 12 is provided with quick connection mechanisms 2 at both ends, and the outer layer 12 is detachably connected to the automobile pipeline through two sets of quick connection mechanisms 2. The quick connection mechanism 2 includes a first connection ring 21, a second connection ring 22, a third connection half ring 23 and a fourth connection half ring 24. The first connection ring 21 is fixedly mounted on the automobile pipeline.
[0041] Reference Figure 1 and Figure 2 The second connecting ring 22 includes a transverse ring 25 and a vertical ring 26. The transverse ring 25 is pressed against the inner wall of the inner layer 11. An inclined chamfer is provided on one end of the transverse ring 25 close to the center of the inner layer 11. One end of the vertical ring 26 is fixedly connected to one end of the transverse ring 25 located at the end of the inner layer 11. The other end of the vertical ring 26 extends to the outside of the outer layer 12 along the radial direction of the outer layer 12. One side wall of the vertical ring 26 is pressed against the end walls of the inner layer 11 and the outer layer 12, and the other side wall of the vertical ring 26 is pressed against the first connecting ring 21.
[0042] Reference Figure 1 and Figure 2 , one end of the third connecting half ring 23 and the fourth connecting half ring 24 are rotatably mounted together. A limiting assembly 3 is provided on the other end of the third connecting half ring 23 and the fourth connecting half ring 24. The inner ring walls of the third connecting half ring 23 and the fourth connecting half ring 24 are provided with mutually connected clamping grooves. Under the action of the limiting assembly 3, the third connecting half ring 23 and the fourth connecting half ring 24 clamp the first connecting ring 21 and the second connecting ring 22 in the clamping groove. A rubber sealing strip 17 is provided on the inner side wall of the third connecting half ring 23 and the fourth connecting half ring 24 located on the side of the clamping groove.
[0043] Reference Figure 1 and Figure 2 The limiting assembly 3 includes a first limiting plate 31, a second limiting plate 32, a limiting screw 33 and a limiting nut 34. The first limiting plate 31 is fixedly connected to the outer wall of the third connecting semi-ring 23 and is located at one end of the third connecting semi-ring 23 close to the fourth connecting semi-ring 24. The second limiting plate 32 is fixedly connected to the outer wall of the fourth connecting semi-ring 24 and is located at one end of the fourth connecting semi-ring 24 close to the third connecting semi-ring 23. The first limiting plate 31 and the second limiting plate 32 are respectively provided with a first through hole and a second through hole that are interconnected. The limiting screw 33 passes through the first through hole and the second through hole in sequence. The limiting nut 34 is threadedly connected to the limiting screw 33 and is pressed against the second limiting plate 32.
[0044] Reference Figure 1 and Figure 2 , move the outer layer 12 so that the second connection ring 22 is pressed against the first connection ring 21, and then move the third connection semi-ring 23 and the fourth connection semi-ring 24, and clamp the clamping grooves on the third connection semi-ring 23 and the fourth connection semi-ring 24 with the first connection ring 21 and the second connection ring 22. At this time, the first limiting plate 31 and the second limiting plate 32 are pressed together, and then the limiting screw 33 is moved to pass through the first through hole and the second through hole in sequence, and then the limiting nut 34 is screwed on the limiting screw 33 and pressed against the second limiting plate 32, and the limiting work of the third connection semi-ring 23 and the fourth connection semi-ring 24 can be completed.
[0045] The working principle of the embodiment of the present application is as follows:
[0046] The rubber flexible joint is configured to have a multilayer structure of an inner layer 11, an outer layer 12 and an intermediate layer 13, wherein the inner layer 11 is made of a soft and corrosion-resistant self-repairing fluororubber and is configured in a corrugated shape, so that the inner layer 11 can have good elasticity and buffering performance while transporting the medium in the pipeline, and can absorb and disperse impact energy, thereby ensuring the stability of the inner layer 11 when various bumps occur during the driving of the car; the outer layer 12 is configured to be an outer layer 12 made of a polymer rubber composite material with nanofibers added, and the surface of the outer layer 12 is configured to be smooth, and the nanofibers form countless tiny physical cross-linking points in the rubber These cross-linking points can not only improve the mechanical strength of the rubber, but also prevent the diffusion of corrosive media inside the rubber. The smooth surface makes the outer layer 12 not easily worn by impurities in the environment, thereby improving the durability of the outer layer 12 in complex environments; a thermal insulation cotton 16 is arranged in the middle layer 13 between the inner layer 11 and the outer layer 12, so as to insulate the inner layer 11 and the outer layer 12, reducing the probability that the extreme temperature in the working environment will have an adverse effect on the deformation of the inner layer 11 material. In summary, through the cooperation of the outer layer 12, the inner layer 11 and the middle layer 13, the overall durability of the rubber flexible joint is greatly improved.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A rubber flexible joint for a vehicle, characterized in that: The invention comprises an inner layer (11) and an outer layer (12) sleeved outside the inner layer (11), wherein an intermediate layer (13) is arranged between the inner layer (11) and the outer layer (12), wherein the inner layer (11) is made of a soft and corrosion-resistant self-repairing fluororubber, wherein the wall of the inner layer (11) is arranged in a corrugated shape, wherein the outer layer (12) is made of a polymer rubber composite material added with nanofibers, wherein the surface of the outer layer (12) is arranged smoothly, wherein heat-insulating cotton is laid in the intermediate layer (13), wherein both ends of the outer layer (12) are provided with quick connection mechanisms (2), and wherein the two ends of the outer layer (12) are detachably connected to automobile pipes through two sets of quick connection mechanisms (2).
2. The vehicle rubber flexible joint according to claim 1, characterized in that: A plurality of reinforcement rings (14) are evenly distributed on the inner side wall of the outer layer (12), and reinforcement ribs (15) are arranged between two adjacent reinforcement rings (14).
3. The vehicle rubber flexible joint according to claim 1, characterized in that: The quick connection mechanism (2) comprises: A first connecting ring (21), wherein the first connecting ring (21) is arranged on a vehicle pipeline; A second connecting ring (22), wherein the second connecting ring (22) is arranged on the outer layer (12); A third connecting half ring (23) and a fourth connecting half ring (24), one end of the third connecting half ring (23) and the fourth connecting half ring (24) are rotatably mounted together, a limiting assembly (3) is provided on the other end of the third connecting half ring (23) and the fourth connecting half ring (24), inner ring walls of the third connecting half ring (23) and the fourth connecting half ring (24) are provided with mutually connected clamping grooves, and the third connecting half ring (23) and the fourth connecting half ring (24) clamp the first connecting ring (21) and the second connecting ring (22) in the clamping grooves under the action of the limiting assembly (3).
4. The vehicle rubber flexible joint according to claim 3, characterized in that: The limiting component (3) comprises: A first limiting plate (31), wherein the first limiting plate (31) is arranged on the third connecting half ring (23); A second limiting plate (32), wherein the second limiting plate (32) is arranged on the fourth connecting half ring (24); A limiting screw (33), wherein the first limiting plate (31) and the second limiting plate (32) are respectively provided with a first through hole and a second through hole which are interconnected, and the limiting screw (33) passes through the first through hole and the second through hole in sequence; A limiting nut (34), wherein the limiting nut (34) is threadedly connected to the limiting screw rod (33) and is tightly pressed against the second limiting plate (32).
5. The vehicle rubber flexible joint according to claim 3, characterized in that: The second connecting ring (22) comprises a transverse ring (25) and a vertical ring (26), wherein the transverse ring (25) is inserted into the inner layer (11), the transverse ring (25) is pressed against the inner wall of the inner layer (11), the vertical ring (26) is arranged at the end of the transverse ring (25), the vertical ring (26) is pressed against the end walls of the inner layer (11) and the outer layer (12), the clamping grooves of the third connecting half ring (23) and the fourth connecting half ring (24) clamp the vertical ring (26) and the first connecting ring (21), and the third connecting half ring (23) and the fourth connecting half ring (24) cooperate with the transverse ring (25) to clamp the inner layer (11), the middle layer (13) and the outer layer (12).
6. The vehicle rubber flexible joint according to claim 5, characterized in that: An inclined chamfer is provided on one end of the transverse ring (25) away from the vertical ring (26).
7. The vehicle rubber flexible joint according to claim 3, characterized in that: Rubber sealing strips (17) are provided on the inner ring walls of the third connecting half ring (23) and the fourth connecting half ring (24).