Split type control arm lining

Abstract

The utility model relates to a split type control arm bushing which comprises an outer sleeve, an inner sleeve, a rubber bushing, a first bolt and a second bolt, and the end face of the first bolt and the end face of the second bolt are connected with a first limiting barrel and a second limiting barrel respectively. A plurality of first limiting plates and second limiting plates in an annular array are formed on the end faces of the first limiting cylinder and the second limiting cylinder correspondingly, and first limiting protrusions and second limiting protrusions are formed on the outer side faces of the first limiting plates and the outer side faces of the second limiting plates correspondingly; a first limiting ring groove and a second limiting ring groove which are matched with the first limiting protrusion and the second limiting protrusion respectively are formed in the inner wall of the inner sleeve, and the first plug pin and the second plug pin are inserted into the inner sleeve from the two ends of the inner sleeve respectively and are in interference fit with the inner sleeve. The first limiting protrusion and the second limiting protrusion are clamped into the first limiting ring groove and the second limiting ring groove respectively. According to the split type control arm lining, the axial limiting effect is exerted on the bolt, the bolt is prevented from loosening and disengaging, and the driving safety of a vehicle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle suspension accessories, in particular to a split control arm bushing. Background Art

[0002] Split control arm bushings are mostly used in control arm shock absorbers of vehicle suspension systems. For example, the utility model patent: A bushing assembly for connecting a control arm and a subframe (application number: 201320764197.7) discloses a split bushing, the pins at both ends of which are pressed in from the direction of the inner tube and are evenly interference fit with the inner tube. However, when the above-mentioned split bushing is subjected to long-term and large road excitation (such as severe vibration of the vehicle body, encountering large potholes during driving), the impact strength exceeds the yield strength of the material itself, and the split pins in the bushing will become loose or even fall off, posing a safety hazard to vehicle driving.

[0003] In view of the above problems, the present invention makes improvements. Utility Model Content

[0004] The utility model provides a split control arm bushing, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A split control arm bushing comprises an outer sleeve, an inner sleeve, a rubber bushing, a first latch and a second latch, the end faces of the first latch and the second latch are respectively connected with a first limiting cylinder and a second limiting cylinder, the end faces of the first limiting cylinder and the second limiting cylinder are respectively formed with a plurality of first limiting plates and a second limiting plates in an annular array, the outer faces of the first limiting plate and the second limiting plate are respectively formed with a first limiting protrusion and a second limiting protrusion, the inner wall of the inner sleeve is provided with a first limiting ring groove and a second limiting ring groove respectively matching with the first limiting protrusion and the second limiting protrusion, when the first latch and the second latch are respectively inserted into the inner sleeve from both ends of the inner sleeve and are interference connected with the inner sleeve, the first limiting protrusion and the second limiting protrusion are respectively stuck in the first limiting ring groove and the second limiting ring groove.

[0007] Preferably, a limiting column with an outer diameter matching the inner diameter of the inner sleeve is arranged in the inner sleeve between the first limiting cylinder and the second limiting cylinder, and a limiting portion is formed at the end of the limiting column facing the first limiting cylinder, which is inserted between a plurality of first limiting plates and abuts against the inner side surfaces of the first limiting plates, and a limiting inclined surface is formed at the end of the limiting column facing the second limiting cylinder, and a spring arranged between the limiting portion and the first limiting cylinder pushes the limiting column to make the limiting inclined surface abut against the second limiting plate.

[0008] Preferably, the first limiting cylinder and the second limiting cylinder are screwed onto the first latch pin and the second latch pin respectively.

[0009] Preferably, the first limiting cylinder, the first limiting plate and the first limiting protrusion are integrally formed of stainless steel, and the second limiting cylinder, the second limiting plate and the second limiting protrusion are integrally formed of stainless steel.

[0010] Preferably, a plurality of reinforcing convex rings embedded in the rubber bushing are formed on the outer side surface of the inner sleeve.

[0011] Preferably, a reinforcement groove is provided on the side surface of the reinforcement convex ring, and the rubber bushing is embedded in the reinforcement groove.

[0012] Preferably, a reinforcement ring embedded in the rubber bushing is formed at the end of the outer sleeve.

[0013] To sum up, the beneficial effect of the utility model is that the first limiting protrusion and the second limiting protrusion are respectively inserted into the first limiting ring groove and the second limiting ring groove, thereby applying axial limiting to the first pin and the inner sleeve and the second pin and the inner sleeve respectively, thereby preventing the first pin and the second pin from loosening in the inner sleeve and preventing the first pin and the second pin from falling out of the inner sleeve, thereby ensuring that the first pin and the second pin can stably support and shock-absorb the wheel, thereby ensuring the safety of vehicle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 2 It is an exploded schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the middle and outer sleeves of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the inner sleeve in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the first limiting cylinder in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the limiting column in the utility model.

[0021] In the figure: 1. outer sleeve; 11. reinforcement ring; 2. inner sleeve; 21. first limit ring groove; 22. second limit ring groove; 23. reinforcement convex ring; 24. reinforcement groove; 3. rubber bushing; 4. first latch; 5. second latch; 6. first limit cylinder; 61. first limit plate; 62. first limit protrusion; 7. second limit cylinder; 71. second limit plate; 72. second limit protrusion; 8. limit column; 81. limit part; 82. limit inclined surface; 9. spring. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the utility model Figure 1-6 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As shown in the figure, a split control arm bushing comprises an outer sleeve 1, an inner sleeve 2, a rubber bushing 3, a first latch 4 and a second latch 5. The outer sleeve 1, the inner sleeve 2 and the rubber bushing 3 are integrally vulcanized and formed. The first latch 4 and the second latch 5 are respectively inserted into the inner sleeve 2 from both ends of the inner sleeve 2 and are interference-connected with the inner sleeve 2. The end surfaces of the first latch 4 and the second latch 5 are respectively connected with a first limiting tube 6 and a second limiting tube 7. The end surfaces of the first limiting tube 6 and the second limiting tube 7 are respectively formed with a plurality of annular arrays of first limiting plates 61 and second limiting plates 71. The outer surfaces of the first limiting plates 61 and the second limiting plates 71 are respectively formed with first limiting protrusions 62 and second limiting protrusions 73. The outer diameters of the first limiting tube 6 and the second limiting tube 7 are consistent with or slightly smaller than the inner diameter of the inner sleeve 2, so that the first limiting tube 6 and the second limiting tube 7 will not be inserted into the inner sleeve 2 along with the first latch 4 and the second latch 5. To produce jamming, a first limiting ring groove 21 and a second limiting ring groove 22 are respectively matched with the first limiting protrusion 62 and the second limiting protrusion 73 on the inner wall of the inner sleeve 2. When the first latch pin 4 and the second latch pin 5 are respectively inserted into the inner sleeve 2 from both ends of the inner sleeve 2 and are interference connected with the inner sleeve 2, the first limiting protrusion 62 and the second limiting protrusion 73 are respectively inserted into the first limiting ring groove 21 and the second limiting ring groove 22. In the above structure, the first limiting protrusion 62 and the second limiting protrusion 73 are respectively inserted into the first limiting ring groove 21 and the second limiting ring groove 22, respectively, and axial limiting is applied between the first latch pin 4 and the inner sleeve 2 and between the second latch pin 5 and the inner sleeve 2, respectively, to prevent the first latch pin 4 and the second latch pin 5 from loosening in the inner sleeve 2, and also to prevent the first latch pin 4 and the second latch pin 5 from falling out of the inner sleeve 2, to ensure that the first latch pin 4 and the second latch pin 5 can stably support and shock-absorb the wheel, thereby ensuring the safety of vehicle driving.

[0024] In order to further strengthen the axial limiting effect on the first latch pin 4 and the second latch pin 5, a limiting column 8 with an outer diameter matching the inner diameter of the inner sleeve 2 is arranged between the first limiting cylinder 6 and the second limiting cylinder 7 in the inner sleeve 2, and a limiting portion 81 is formed on the end of the limiting column 8 facing the first limiting cylinder 6 and inserted between a plurality of first limiting plates 61 and in contact with the inner side surface of the first limiting plate 61, and a limiting inclined surface 82 is formed on the end of the limiting column 8 facing the second limiting cylinder 7, and a spring 9 is arranged between the limiting portion 81 and the first limiting cylinder 6 to push the limiting column 8 to limit The inclined surface 82 contacts the second limiting plate 71. When the first latch pin 4 and the second latch pin 5 are inserted and interference-connected in the inner sleeve 2, the first latch pin 4 and the second limiting tube 7 are inserted into the inner sleeve 2, so that the first limiting protrusion 62 is inserted into the first limiting ring groove 21, and then the limiting column 8 is inserted into the inner sleeve 2 with the limiting portion 81 facing the first limiting tube 6. Since the outer diameter of the limiting column 8 matches the inner diameter of the inner sleeve 2, the limiting column 8 can slide in the inner sleeve 2. When the second latch pin 5 is inserted into the inner sleeve 2, the second limiting protrusion 73 is inserted into the first limiting ring groove 21. Before the second limiting ring groove 22 is completed, the end of the second limiting plate 71 pushes the limiting column 8 to slide toward the first limiting tube 6 so that the limiting portion 81 is inserted between the first limiting plates 61 and contacts the first limiting plates 61 and compresses the spring 9. The sliding of the limiting column 8 makes room for the second protrusion to be inserted into the second limiting ring groove 22. After the second limiting protrusion 73 is inserted into the second limiting ring groove 22, the limiting column 8 slides toward the second limiting tube 7 under the action of the spring 9 so that the limiting inclined surface 82 contacts the end of the second limiting plate 71. At this time, part of the limiting portion 81 is still located between the first limiting plates 61 and the first limiting plates 61. A limit plate 61 is in contact with the first limit plate 61, and radial limitation is applied to the first limit protrusion 62 and the second limit protrusion 73 through the contact between the limit portion 81 and the first limit plate 61 and the contact between the limit inclined surface 82 and the second limit plate 71, so that the first limit protrusion 62 and the second limit protrusion 73 are more stably maintained in the first limit ring groove 21 and the second limit ring groove 22, and axial limitation is applied to the first pin 4 and the second pin 5, thereby further enhancing the stability of the interference connection between the first pin 4 and the second pin 5 and the inner sleeve 2.

[0025] In order to facilitate the processing and production of the first limiting cylinder 6 and the second limiting cylinder 7, the first limiting cylinder 6 and the second limiting cylinder 7 are respectively screwed on the first latch 4 and the second latch 5. Through this detachable connection method, the first latch 4 and the second latch 5 and the first limiting cylinder 6 and the second limiting cylinder 7 can be processed and formed with different materials and then connected. There is no need to replace the original production line involving the first latch 4 and the second latch 5, thereby reducing the production cost.

[0026] In order to achieve a better limiting effect, the first limiting cylinder 6, the first limiting plate 61 and the first limiting protrusion 62 are integrally formed of stainless steel, the second limiting cylinder 7, the second limiting plate 71 and the second limiting protrusion 73 are integrally formed of stainless steel, the first latch 4 and the second latch 5 are made of aluminum alloy, and the first latch 4 and the second latch 5 made of aluminum alloy reduce the unsprung mass of the car. The first limiting cylinder 6 and the second limiting cylinder 7 supported by stainless steel ensure a certain toughness so that the first limiting protrusion 62 and the second limiting protrusion 73 can be inserted into the first limiting ring groove 21 and the second limiting ring groove 22 while having good strength, thereby ensuring that the first limiting cylinder 6 and the second limiting cylinder 7 have a better limiting effect on the first latch 4 and the second latch 5.

[0027] In order to strengthen the connection stability between the rubber bushing 3 and the inner sleeve 2 , a plurality of reinforcing convex rings 23 embedded in the rubber bushing 3 are formed on the outer surface of the inner sleeve 2 , and reinforcing grooves 24 are formed on the side surfaces of the reinforcing convex rings 23 , into which the rubber bushing 3 is embedded.

[0028] In order to strengthen the connection stability between the rubber bushing 3 and the outer sleeve 1 , a reinforcement ring 11 embedded in the rubber bushing 3 is formed at the end of the outer sleeve 1 .

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A split control arm bushing, comprising an outer sleeve (1), an inner sleeve (2), a rubber bushing (3), a first latch (4) and a second latch (5), characterized in that: The first stopper (4) and the second stopper (5) are connected to the end surfaces thereof respectively. A plurality of first stopper plates (61) and second stopper plates (71) in an annular array are formed on the end surfaces thereof respectively. The first stopper plates (61) and the second stopper plates (71) are formed on the outer surfaces thereof respectively with first stopper protrusions (62) and second stopper protrusions (73). The inner wall of the inner sleeve (2) is provided with first stopper ring grooves (21) and second stopper ring grooves (22) respectively matching the first stopper protrusions (62) and the second stopper protrusions (73). When the first stopper (4) and the second stopper (5) are respectively inserted into the inner sleeve (2) from both ends thereof and are interference-connected with the inner sleeve (2), the first stopper protrusions (62) and the second stopper protrusions (73) are respectively inserted into the first stopper ring grooves (21) and the second stopper ring grooves (22).

2. A split control arm bushing according to claim 1, characterized in that: A limiting column (8) having an outer diameter matching the inner diameter of the inner sleeve (2) is arranged inside the inner sleeve (2) and between the first limiting cylinder (6) and the second limiting cylinder (7); the limiting column (8) has a limiting portion (81) formed at the end thereof facing the first limiting cylinder (6) and inserted between a plurality of first limiting plates (61) and abutting against the inner side surface of the first limiting plates (61); the limiting column (8) has a limiting inclined surface (82) formed at the end thereof facing the second limiting cylinder (7); a spring (9) arranged between the limiting portion (81) and the first limiting cylinder (6) pushes the limiting column (8) so that the limiting inclined surface (82) abuts against the second limiting plate (71).

3. A split control arm bushing according to claim 2, characterized in that: The first limiting cylinder (6) and the second limiting cylinder (7) are respectively screwed onto the first latch pin (4) and the second latch pin (5).

4. A split control arm bushing according to claim 3, characterized in that: The first limiting cylinder (6), the first limiting plate (61) and the first limiting protrusion (62) are integrally formed from a stainless steel material, and the second limiting cylinder (7), the second limiting plate (71) and the second limiting protrusion (73) are integrally formed from a stainless steel material.

5. The split control arm bushing according to claim 1, characterized in that: A plurality of reinforcing convex rings (23) embedded in the rubber bushing (3) are formed on the outer side surface of the inner sleeve (2).

6. A split control arm bushing according to claim 5, characterized in that: A reinforcement groove (24) is provided on the side surface of the reinforcement convex ring (23), and the rubber bushing (3) is embedded in the reinforcement groove (24).

7. The split control arm bushing according to claim 5, characterized in that: The end of the outer sleeve (1) is formed with a reinforcement ring (11) embedded in the rubber bushing (3).

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