Rubber joint convenient to replace and used for oil pressure shock absorber

Abstract

The utility model discloses a convenient-to-replace rubber node for an oil pressure shock absorber, and relates to the technical field of vehicle accessories. The device comprises a rubber outer sleeve, side grooves connected with the core shaft are formed in the side walls of the two ends of the rubber outer sleeve, upper grooves and lower grooves are further formed in the inner walls of the two sides of each side groove, outer protruding blocks and inner protruding blocks are welded to the outer walls of the two sides of the core shaft, a core sleeve is welded to the side wall of the outer end of the core shaft, ear plates are welded to the inner wall of the core sleeve, and a connecting assembly is arranged on the outer wall of the core sleeve. The connecting assembly comprises an inner ring plate connected to the outer wall of the core sleeve in a clamped mode, a semicircular plate is welded to the outer wall of the inner ring plate, a connecting block is welded to the outer wall of the semicircular plate, and a locking rod is installed on the connecting block. According to the rubber joint, the effect of connecting tightness between the rubber outer sleeve and the core sleeve can be improved through the rubber outer sleeve and the core sleeve, the rubber joint can be conveniently detached from the core sleeve through the connecting assembly, and meanwhile the rubber joint can be conveniently detached from an oil pressure shock absorber and a bogie.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle parts technology, and in particular relates to a rubber joint for a hydraulic shock absorber that is easy to replace. Background Technology

[0002] Rubber joints are one of the most important elastic components in vehicle parts. They are used to connect bogies and hydraulic shock absorbers. A rubber joint typically consists of a metal mandrel, a rubber sleeve, and a connecting flange. The rubber sleeve is fixed to the outside of the metal mandrel by vulcanization. The metal mandrel is a hollow cylindrical structure. The connecting flange is used to connect the two ends of the metal mandrel.

[0003] Chinese patent application CN209833632U discloses a rubber joint for a railway train bogie, comprising a mandrel, a rubber layer, and an outer sleeve. The outer sleeve is a hollow cylinder, and the mandrel is located inside the outer sleeve. A rubber layer is located between the mandrel and the outer sleeve. The rubber layer is vulcanized and bonded to both sides of the mandrel and the outer sleeve. The mandrel includes a mandrel cylinder and symmetrical protruding ears on both sides of the mandrel cylinder, with the protruding ears integrally connected to the mandrel cylinder. Both ends of the rubber layer have rubber-molded surfaces. The bonding surface between the mandrel and the rubber layer only has the symmetrical outer surface on both sides, and the bonding surface between the outer sleeve and the rubber layer also only has the symmetrical inner surface on both sides. The cross-section of the rubber-molded surface is elliptical. The rubber joint structure with rubber-molded surfaces effectively reduces the stiffness of the rubber joint, saves rubber usage, and reduces costs. The special structure of the rubber joint mandrel ensures that the joint stiffness is adequate while guaranteeing the limiting function of the rubber joint under extreme loads.

[0004] The aforementioned rubber joint for a railway train bogie has a mandrel inside its outer sleeve, bonded together by a vulcanized rubber layer to form an integrated structure. The interface between the mandrel and the outer sleeve is planar, meaning the bonding surfaces are also planar. However, the adhesive force formed by the vulcanized rubber layer on this vertical plane is limited, resulting in a relatively low connection tightness between the mandrel and the outer sleeve. Under external forces, this interface is prone to tearing. Furthermore, the outer end of the mandrel cylinder has an integrated protruding lug connected to a flange. However, the protruding lug is an elliptical structure made of metal, which is extremely difficult to fit with the annular flange, and the independent disassembly and assembly of the flange is also difficult. Therefore, we provide a replaceable rubber joint for hydraulic shock absorbers to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a rubber joint for a hydraulic shock absorber that is easy to replace. The rubber outer sleeve and the core sleeve can improve the tightness of the connection between the rubber outer sleeve and the core sleeve. The connecting component makes it easy to remove it from the core sleeve, and also makes it easy to remove the rubber joint from the hydraulic shock absorber and the bogie. This solves the problems of the aforementioned rubber joint for a railway train bogie.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a replaceable rubber joint for a hydraulic shock absorber, comprising a rubber outer sleeve; side grooves for connecting to a mandrel are formed on the side walls at both ends of the rubber outer sleeve, and upper and lower grooves are formed on the inner walls of both sides of the side grooves; outer and inner protrusions are welded to the outer walls of both sides of the mandrel; a core sleeve is welded to the outer side wall of the mandrel; an ear plate is welded to the inner wall of the core sleeve; a connecting assembly is provided on the outer wall of the core sleeve; the connecting assembly includes an inner ring plate snapped onto the outer wall of the core sleeve; a semi-circular plate is welded to the outer wall of the inner ring plate; a connecting block is welded to the outer wall of the semi-circular plate; and a locking rod is installed on the connecting block.

[0008] The present invention is further configured such that the outer protrusions are arranged in a one-to-one correspondence with the upper groove, the inner protrusions are arranged in a one-to-one correspondence with the lower groove, and there are six outer protrusions and six inner protrusions, which are arranged in a ring array structure.

[0009] The present invention is further configured such that the outer protrusion is connected to the upper groove, the inner protrusion is connected to the lower groove, and the outer protrusion and the inner protrusion are arranged in a semi-cylindrical shape.

[0010] The present invention is further configured such that the semicircular plate and the inner ring plate are arranged in an arc shape, and the thickness of the semicircular plate is the same as the thickness of the core sleeve, and both the semicircular plate and the inner ring plate are arranged in a semicircular ring shape.

[0011] The present invention is further configured such that an outer ring groove is provided on the outer wall of the core sleeve, and shaft holes are provided at both ends of the outer ring groove. The outer ring groove is engaged with the inner ring plate, and connecting shafts are provided at both ends of the inner ring plate.

[0012] The present invention is further configured such that the width of the outer ring groove is half the thickness of the core sleeve, and the connecting shaft passes through the inner ring plate and is fixedly connected to the shaft hole on the core sleeve.

[0013] The present invention is further configured such that there are two connecting components, which are arranged opposite to each other, and two connecting blocks are arranged on the outer wall of the semicircular plate, and the four connecting blocks on the two semicircular plates are arranged in a ring array structure.

[0014] The present invention is further configured such that a circular hole is provided on the connecting block, and a locking sleeve is fixedly provided in the circular hole. The connecting block is connected to one end of the locking rod through the locking sleeve, and a locking sleeve is also fixedly provided at the other end of the locking rod.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model, by setting a rubber outer sleeve and a core sleeve, has side grooves at both ends of the rubber outer sleeve, and upper and lower grooves on the inner walls of the side grooves. A mandrel is set on the side wall of the core sleeve opposite to the rubber outer sleeve. Inner and outer protrusions are set on the inner and outer side walls of the mandrel. The outer protrusions are set one-to-one with the upper grooves, and the inner protrusions are set one-to-one with the lower grooves. The mandrel is also connected to the side grooves on the rubber outer sleeve. Through the mutual cooperation between the outer protrusions, inner protrusions, upper grooves and lower grooves, the contact surface between the rubber outer sleeve and the core sleeve can be improved. Furthermore, the groove and protrusion structure can ensure that the contact surfaces between the rubber outer sleeve and the core sleeve are not on the same vertical or horizontal plane, thereby further increasing the tightness of the connection between the rubber outer sleeve and the core sleeve.

[0017] 2. This utility model, by setting a core sleeve and a connecting assembly, has an outer ring groove on the outer wall of the core sleeve for installing the connecting assembly. The connecting assembly includes an inner ring plate set in the outer ring groove. The two ends of the inner ring plate are connected to the core sleeve through connecting shafts. A semi-circular plate is also welded to the outer wall of the inner ring plate. A connecting block is welded to the outer wall of the semi-circular plate. The connecting block is connected to the hydraulic shock absorber and bogie through a locking rod and a locking sleeve. It is fixed to the outer wall of the core sleeve by two semi-circular connecting assemblies. This allows for easy removal and assembly of the connecting assembly from the core sleeve. Furthermore, the connecting assembly is also easy to remove from the hydraulic shock absorber and bogie through the connecting block and locking rod. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a rubber joint for an easily replaceable hydraulic shock absorber.

[0020] Figure 2 This is a structural disassembly diagram of a rubber joint for an easily replaceable hydraulic shock absorber.

[0021] Figure 3 for Figure 2 Enlarged view of the structure at point A in the image.

[0022] Figure 4 This is a schematic diagram of the core sleeve structure.

[0023] Figure 5 This is a structural disassembly diagram of the connecting components.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Rubber jacket, 101-Side groove, 102-Upper groove, 103-Lower groove, 2-Core sleeve, 201-Core shaft, 201a-Outer protrusion, 201b-Inner protrusion, 202-Ear plate, 203-Outer ring groove, 203a-Shaft hole, 3-Connecting assembly, 301-Semicircular plate, 302-Inner ring plate, 303-Connecting shaft, 304-Connecting block, 304a-Round hole, 305-Locking rod, 305a-Locking sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figure 1-4 This utility model is a rubber joint for a hydraulic shock absorber that is easy to replace, including a rubber outer sleeve 1 and a core sleeve 2. The rubber outer sleeve 1 and the core sleeve 2 can improve the connection tightness between the rubber outer sleeve 1 and the core sleeve 2.

[0029] Specifically, the rubber sleeve 1 has side grooves 101 at both ends, and the outer and inner side walls of the side grooves 101 have upper grooves 102 and lower grooves 103 respectively. The rear side wall of the core sleeve 2 is welded with a spindle 201 connected to the side grooves 101, and the outer and inner side walls of the spindle 201 are welded with outer protrusions 201a and inner protrusions 201b respectively. An ear plate 202 is fixedly installed on the inner wall of the outer end of the spindle 201.

[0030] Furthermore, the upper groove 102 is positioned opposite to the outer protrusion 201a, the lower groove 103 is positioned opposite to the inner protrusion 201b, and the rubber outer sleeve 1 and the core sleeve 2 are connected by vulcanization bonding.

[0031] Example 2

[0032] Please see Figure 4-5Based on embodiment 1, a connecting component 3 is also provided, which facilitates the removal of the rubber node from the core sleeve 2 and also facilitates the removal of the rubber node from the hydraulic shock absorber and the bogie.

[0033] Specifically, the outer ring groove 203 is provided on the outer side wall of the core sleeve 2, and the connecting component 3 includes an inner ring plate 302 disposed in the outer ring groove 203. A semi-circular plate 301 is welded on the outer wall of the inner ring plate 302, and a connecting block 304 is welded on the outer wall of the semi-circular plate 301. The connecting block 304 is connected to the hydraulic shock absorber and the bogie through a locking rod 305.

[0034] Furthermore, the outer ring groove 203 has shaft holes 203a at both ends, the inner ring plate 302 has connecting shafts 303 installed at both ends, and the connecting shafts 303 are also fixedly connected to the shaft holes 203a. The connecting block 304 has a round hole 304a, and the round hole 304a is threadedly connected to the locking rod 305. There are two connecting components 3 in total, and the two connecting components 3 are arranged opposite to each other. There are two connecting blocks 304 on the outer wall of the semicircular plate 301, and the four connecting blocks 304 on the two connecting components 3 are arranged in a ring array structure.

[0035] The operation process of this embodiment is as follows: When in use, align the inner ring plate 302 of a connecting component 3 with the outer ring groove 203 and insert it into it. Then, take out the connecting shaft 303 and insert it from the outside of the core sleeve 2 into the shaft hole 203a and the inner ring plate 302 until the other end protrudes from the outer wall of the core sleeve 2. Lock the screw sleeves at both ends to fix the semicircular plate 301 and the inner ring plate 302 to the outer wall of the core sleeve 2. Finally, insert one end of the locking rod 305 into the connecting block 304 and the other end into the hydraulic shock absorber and the bogie, and lock both ends of it with the locking sleeve 305a.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A replaceable rubber joint for a hydraulic shock absorber, comprising a rubber outer sleeve (1); characterized in that: The rubber jacket (1) has side grooves (101) on both sides of its sidewalls that are connected to the mandrel (201). The inner walls of the side grooves (101) also have upper grooves (102) and lower grooves (103). The outer walls of the mandrel (201) are welded with outer protrusions (201a) and inner protrusions (201b). The outer sidewall of the mandrel (201) is welded with a core sleeve (2). The inner wall of the core sleeve (2) is welded with an ear plate (202). The outer wall of the core sleeve (2) is provided with a connecting component (3). The connecting component (3) includes an inner ring plate (302) that is snapped onto the outer wall of the core sleeve (2). The outer wall of the inner ring plate (302) is welded with a semi-circular plate (301). The outer wall of the semi-circular plate (301) is welded with a connecting block (304). A locking rod (305) is installed on the connecting block (304).

2. The easily replaceable rubber joint for a hydraulic shock absorber according to claim 1, characterized in that, The outer protrusion (201a) is arranged in a one-to-one correspondence with the upper groove (102), and the inner protrusion (201b) is arranged in a one-to-one correspondence with the lower groove (103). There are six outer protrusions (201a) and six inner protrusions (201b), and the six outer protrusions (201a) and six inner protrusions (201b) are arranged in a ring array structure.

3. The easily replaceable rubber joint for a hydraulic shock absorber according to claim 2, characterized in that, The outer protrusion (201a) is connected to the upper groove (102), and the inner protrusion (201b) is connected to the lower groove (103). The outer protrusion (201a) and the inner protrusion (201b) are arranged in a semi-cylindrical shape.

4. The easily replaceable rubber joint for a hydraulic shock absorber according to claim 1, characterized in that, The semicircular plate (301) and the inner ring plate (302) are arranged in an arc shape, and the thickness of the semicircular plate (301) is the same as the thickness of the core sleeve (2). The semicircular plate (301) and the inner ring plate (302) are both arranged in a semicircular ring shape.

5. A replaceable rubber joint for a hydraulic shock absorber according to claim 1, characterized in that, The outer wall of the core sleeve (2) is provided with an outer ring groove (203), and the two ends of the outer ring groove (203) are provided with shaft holes (203a). The outer ring groove (203) is engaged with the inner ring plate (302), and the two ends of the inner ring plate (302) are provided with connecting shafts (303).

6. A replaceable rubber joint for a hydraulic shock absorber according to claim 5, characterized in that, The width of the outer ring groove (203) is half the thickness of the core sleeve (2), and the connecting shaft (303) passes through the inner ring plate (302) and is fixedly connected to the shaft hole (203a) on the core sleeve (2).

7. The easily replaceable rubber joint for a hydraulic shock absorber according to claim 1, characterized in that, There are two connecting components (3), and the two connecting components (3) are arranged opposite to each other. There are two connecting blocks (304) on the outer wall of the semicircular plate (301), and the four connecting blocks (304) on the two semicircular plates (301) are arranged in a ring array structure.

8. A replaceable rubber joint for a hydraulic shock absorber according to claim 7, characterized in that, The connecting block (304) has a circular hole (304a) and a locking sleeve (305a) is fixedly installed inside the circular hole (304a). The connecting block (304) is connected to one end of the locking rod (305) through the locking sleeve (305a), and the other end of the locking rod (305) is also fixedly installed with a locking sleeve (305a).

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