Anti-fatigue rubber joint

Abstract

The utility model relates to the technical field of rubber joints, in particular to an anti-fatigue rubber joint which comprises joint ends, the joint ends are symmetrically distributed along the two ends, an integrally-formed joint center is arranged between the two joint ends, and built-in grooves are formed in the joint ends. Through the design of the joint center and the side flaps, the anti-fatigue and anti-deformation capacity of the rubber joint is remarkably enhanced, when the rubber joint needs to be bent, damage caused by bending can be reduced, the damping effect is achieved when objects at the two ends are extruded and impacted, the side flaps are annularly distributed outside the joint center and can be matched to be bent when the joint center is bent, and the anti-fatigue and anti-deformation capacity of the rubber joint is improved. In addition, the joint end is wrapped by the woven sleeve made of the aluminum alloy material, the situation that the joint end is extruded and deformed when connected with a pipe fitting or a rod piece is avoided, and the fatigue resistance of the rubber joint is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of rubber joint technology, and in particular to an anti-fatigue rubber joint. Background Technology

[0002] Fatigue-resistant rubber joints are specially designed rubber joints to improve their durability and reliability under long-term dynamic loads. This type of rubber joint is commonly used in applications requiring frequent movement and subjected to repetitive stresses, such as automotive suspension systems, bridge seismic isolation systems, and aerospace equipment.

[0003] A search revealed that, according to authorization announcement number CN219866013U, a rubber joint is disclosed, comprising a first joint, a second joint, and a mandrel. The first joint corresponds to the second joint, and the mandrel is located at the axial center of the first and second joints. Both the first and second joints include an outer sleeve and an inner core. A rubber block is installed between the outer sleeve and the inner core, and the rubber block is obliquely fixed between the outer sleeve and the inner core. A threaded groove is formed on the inner wall of the inner core, and threaded blocks are installed on the circumference of the mandrel, with the threaded blocks corresponding to the threaded groove. This utility model, constructed by combining the first and second joints, and installing a rubber block between the outer sleeve and the inner core, obliquely fixing the rubber block between the outer sleeve and the inner core, can greatly improve the axial stiffness of the joint, making the axial height greater than one-fifth of the radial stiffness. The threaded groove on the inner wall of the inner core and the threaded blocks installed on the circumference of the mandrel can disperse the pressure of the mandrel on the inner core through the threaded blocks, thereby improving the service life of the rubber joint.

[0004] Currently, in the electromechanical equipment industry, most rubber joints have a single function, only used for specific connections when connecting shafts or pipes. Furthermore, in actual use, the shape of rubber joints is relatively simple, such as cylindrical or rectangular columns, which cannot achieve specific effects when some connections require a certain degree of bending or vibration reduction.

[0005] Therefore, a fatigue-resistant rubber joint is provided. Utility Model Content

[0006] The purpose of this utility model is to address the aforementioned technical problems by providing a fatigue-resistant rubber joint, thereby solving the problem that the types of supporting components and the overall shape of the rubber joint described in the background art are all limited.

[0007] In view of this, the present invention provides a fatigue-resistant rubber joint, including joint ends, the joint ends being symmetrically distributed at both ends, and an integrally formed joint center being disposed between the two joint ends. The joint ends are provided with an internal groove, and the joint center is provided with a central channel. The internal groove and the central channel are connected.

[0008] The end of the joint is provided with an edge protrusion, and the surface of the edge protrusion is provided with a mounting hole that penetrates through it. The inner wall of the built-in groove is provided with an inner ring protrusion.

[0009] The joint center has several side petals distributed in a ring around its outer surface. The side petals are integrally formed and connected to the joint ends distributed at both ends. The joint ends are covered with a woven sleeve.

[0010] The joint end includes a base layer, an anti-aging layer, an adhesive layer, and a wear-resistant layer. The surface of the base layer is coated with an anti-aging layer, and the surface of the anti-aging layer is bonded to the wear-resistant layer through the adhesive layer. The joint center, side flaps, and joint end have the same structural composition.

[0011] In detail, the joint center is cylindrical, and both the inner and outer walls have a corrugated structure.

[0012] In detail, a number of inner ring protrusions are distributed on the inner wall of the same built-in groove, and the inner ring protrusions are equidistantly distributed along the vertical direction.

[0013] In detail, the braided sleeve is made of aluminum alloy and includes several loops and vertical pieces. The loops and vertical pieces are arranged vertically and alternately, and the vertical pieces are also fixedly assembled to the joint ends by screws.

[0014] In detail, the base layer is made of rubber material.

[0015] In detail, the anti-aging layer is made of titanium dioxide coating material.

[0016] In detail, the adhesive layer is made of resin adhesive material.

[0017] In detail, the wear-resistant layer is made of polyvinyl chloride film material.

[0018] Compared with the prior art, the present invention provides a fatigue-resistant rubber joint with the following beneficial effects:

[0019] 1. This utility model possesses fatigue resistance and deformation resistance capabilities, specifically:

[0020] The design of the joint center and side flaps significantly enhances its fatigue and deformation resistance. The joint center is cylindrical with corrugated inner and outer walls. This design reduces the damage caused by bending when the rubber joint needs to bend and provides shock absorption when objects at both ends are squeezed and impacted.

[0021] 2. This utility model has durability and weather resistance. Specifically, the side petals are distributed in a ring outside the joint center, which can cooperate with the bending when the joint center bends and prevent excessive bending, thereby improving the fatigue resistance of the entire rubber joint.

[0022] 3. This utility model possesses durability and weather resistance, specifically as follows:

[0023] The rubber joint, composed of a base layer, an anti-aging layer, an adhesive layer, and a wear-resistant layer, significantly improves its durability and weather resistance. Furthermore, through the composition of multiple materials, the rubber joint can maintain excellent performance and extend its service life in various harsh environments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an anti-fatigue rubber joint proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of an anti-fatigue rubber joint proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the edge lobe distribution of an anti-fatigue rubber joint proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the braided sleeve structure of an anti-fatigue rubber joint proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the joint end structure of an anti-fatigue rubber joint proposed in this utility model.

[0029] In the diagram: 1. Joint end; 11. Edge protrusion; 12. Inner ring protrusion; 13. Mounting hole; 14. Joint center; 15. Side flap; 16. Braided sleeve; 101. Internal groove; 1001. Base layer; 1002. Anti-aging layer; 1003. Adhesive layer; 1004. Wear-resistant layer; 1401. Central channel; 1601. Ring belt; 1602. Vertical piece. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.

[0032] Example 1

[0033] Please see Figures 1-5 A fatigue-resistant rubber joint includes joint ends 1, which are symmetrically distributed at both ends. An integrally formed joint hub 14 is provided between the two joint ends 1. The joint ends 1 at both ends can be used to dock with pipes or rods. Through the setting of the built-in groove 101, it can be inserted and installed with pipes or rods. The joint ends 1 have built-in grooves 101 inside, and the joint hub 14 has a central channel 1401 inside. The built-in grooves 101 and the central channel 1401 are connected and form a complete internal channel structure. When two pipes are connected based on this rubber joint, liquid or gas can be transported without damaging the rubber joint material.

[0034] The end of the joint end 1 is provided with an edge protrusion 11. The surface of the edge protrusion 11 is provided with a mounting hole 13 that penetrates through it. The mounting hole 13 can be used to pass screws or bolts. The edge protrusion 11 can be connected to the connection part reserved on the outer wall of the pipe or rod for installation, thereby achieving stable installation of the rubber joint and the objects at both ends. The inner wall of the built-in groove 101 is provided with an inner ring protrusion 12. The inner ring protrusion 12 mainly plays a squeezing effect. It is a water-swellable rubber material and is bonded and fixed to the inner wall of the built-in groove 101 by composite adhesive. After the pipe or rod is inserted into the built-in groove 101, the inner ring protrusion 12 can achieve a stronger fit. In addition, it can play a leak-proof effect when the pipe structure is connected and liquid is transported.

[0035] The outer ring of the joint center 14 has several side petals 15. When the joint center 14 is bent, the side petals 15 can bend in coordination and at the same time play a role in preventing excessive bending, thereby improving the fatigue resistance of the entire rubber joint. The side petals 15 are integrally molded and connected to the joint ends 1 distributed at both ends. The joint ends 1 are covered with a braided sleeve 16. The braided sleeve 16 can prevent compression deformation when the joint ends 1 are connected to the tube or rod, which also ensures the fatigue resistance of the rubber joint.

[0036] The joint end 1 includes a base layer 1001, an anti-aging layer 1002, an adhesive layer 1003, and a wear-resistant layer 1004. The surface of the base layer 1001 is coated with the anti-aging layer 1002. The surface of the anti-aging layer 1002 is bonded and fixed to the wear-resistant layer 1004 through the adhesive layer 1003. The joint center 14 and the side flap 15 have the same structure as the joint end 1. Through the composition of multiple materials, the durability of the rubber joint can be improved, thereby achieving the effect of improving fatigue resistance.

[0037] It should be further noted that the joint center 14 is cylindrical, and both the inner and outer walls are corrugated. The corrugated structure not only reduces the damage caused by bending when the rubber joint needs to bend, but also provides a shock absorption effect when objects at both ends are squeezed and impacted, thereby improving the overall functionality of the joint.

[0038] It should be further noted that a number of inner ring protrusions 12 are distributed on the inner wall of the same built-in groove 101, and the inner ring protrusions 12 are equidistantly distributed in the vertical direction. By setting multiple sets of inner ring protrusions 12, the tightness of the connection between the component and the joint end 1 and the sealing performance of the joint end 1 can be further improved.

[0039] It should be further noted that the braided sleeve 16 is made of aluminum alloy. The braided sleeve 16 includes several rings 1601 and vertical pieces 1602. The rings 1601 and vertical pieces 1602 are arranged vertically and alternately. The vertical pieces 1602 are also fixedly assembled to the joint end 1 by screws. Through the composition of the rings 1601 and vertical pieces 1602, it can stably cover the outer ring wall of the joint end 1, ensuring the deformation resistance of the joint end 1.

[0040] It should be further noted that the base layer 1001 is made of rubber material, which has good elasticity and resilience, and can effectively absorb and release energy.

[0041] It should be further noted that the anti-aging layer 1002 is made of titanium dioxide coating material. By setting a titanium dioxide coating with UV protection capability, the entire material has good weather resistance and anti-aging performance.

[0042] It should be further noted that the adhesive layer 1003 is made of resin adhesive material, which has good and permanent bonding ability.

[0043] It should be further noted that the wear-resistant layer 1004 is made of polyvinyl chloride film material, which has good corrosion and wear resistance. During normal use, it can prevent the base layer 1001 from being damaged due to scratches and impacts, thus reducing the fatigue resistance.

[0044] In operation, this solution forms a complete internal channel structure through the built-in groove 101 and the central channel 1401, enabling the transport of liquids or gases. The built-in groove 101 of the joint end 1 is inserted and installed with pipes or rods. The compression action of the inner ring protrusion 12 ensures the tightness and sealing of the connection. The inner ring protrusion 12 is made of water-swellable rubber material. When the pipe is inserted, the inner ring protrusion 12 expands when it comes into contact with liquid, further enhancing the fit and preventing liquid leakage. In addition, multiple inner ring protrusions 12 are distributed on the inner wall of the built-in groove 101, equidistantly arranged in the vertical direction. This design not only improves the stability of the connection, but also further enhances the sealing performance through the synergistic effect of multiple sets of inner ring protrusions 12.

[0045] This is achieved through the structural design of the joint center 14 and the side flaps 15. The joint center 14 is cylindrical with corrugated inner and outer walls. This design reduces stress concentration and damage caused by bending when the rubber joint is bent. At the same time, the corrugated structure can act as a shock absorber when objects at both ends are squeezed or impacted, protecting the internal structure of the joint from damage. The side flaps 15 are distributed in a ring around the outside of the joint center 14. They can cooperate with bending when the joint is bent, while limiting excessive bending and preventing the rubber joint from failing due to excessive deformation. In addition, the joint end 1 is covered with an aluminum alloy braided sleeve 16. The braided sleeve 16 is composed of interlaced rings 1601 and vertical plates 1602. This structure can effectively prevent the joint end 1 from being squeezed and deformed when connected to pipes or rods, further enhancing the fatigue resistance of the rubber joint. Through this fatigue-resistant and deformation-resistant structural design, the rubber joint can maintain stability and durability under complex working conditions.

[0046] The joint end 1 is composed of a base layer 1001, an anti-aging layer 1002, an adhesive layer 1003, and a wear-resistant layer 1004. The joint center 14 and the side petals 15 also adopt the same multi-layer material structure, further improving the overall durability. Through this multi-layer material composite design, the rubber joint can maintain excellent fatigue resistance and functionality during long-term use and adapt to various complex working conditions.

[0047] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A fatigue-resistant rubber joint, comprising a joint end (1), characterized in that: The joint ends (1) are symmetrically distributed at both ends, and an integrally formed joint center (14) is provided between the two joint ends (1). The joint ends (1) are provided with an internal groove (101), and the joint center (14) is provided with a central channel (1401). The internal groove (101) and the central channel (1401) are connected. The end of the joint end (1) is provided with an edge protrusion (11), and the surface of the edge protrusion (11) is provided with a mounting hole (13) that penetrates its interior. The inner wall of the built-in groove (101) is provided with an inner ring protrusion (12). The joint center (14) has several side petals (15) distributed in a ring around its outer side. The side petals (15) are integrally formed and connected to the joint ends (1) distributed at both ends. The joint ends (1) are covered with a woven sleeve (16). The joint end (1) includes a base layer (1001), an anti-aging layer (1002), an adhesive layer (1003), and a wear-resistant layer (1004). The surface of the base layer (1001) is coated with an anti-aging layer (1002). The surface of the anti-aging layer (1002) is bonded and fixed to the wear-resistant layer (1004) by the adhesive layer (1003). The joint center (14) and the side flap (15) have the same structural composition as the joint end (1).

2. The fatigue-resistant rubber joint according to claim 1, characterized in that: The joint center (14) is cylindrical, and both the inner and outer walls are corrugated.

3. The fatigue-resistant rubber joint according to claim 1, characterized in that: Several inner ring protrusions (12) are distributed on the inner wall of the same built-in groove (101), and the inner ring protrusions (12) are equidistantly distributed in the vertical direction.

4. The fatigue-resistant rubber joint according to claim 1, characterized in that: The braided sleeve (16) is made of aluminum alloy material. The braided sleeve (16) includes several rings (1601) and vertical pieces (1602). The rings (1601) and vertical pieces (1602) are arranged vertically and alternately. The vertical pieces (1602) are also fixedly assembled with the joint end (1) by screws.

5. The fatigue-resistant rubber joint according to claim 1, characterized in that: The base layer (1001) is made of rubber material.

6. The fatigue-resistant rubber joint according to claim 1, characterized in that: The anti-aging layer (1002) is made of titanium dioxide coating material.

7. The fatigue-resistant rubber joint according to claim 1, characterized in that: The adhesive layer (1003) is made of resin adhesive material.

8. The fatigue-resistant rubber joint according to claim 1, characterized in that: The wear-resistant layer (1004) is made of polyvinyl chloride film material.

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