Resilience adjustment mechanism for shock absorbers

Abstract

The present invention relates to a rebound force adjustment mechanism for a shock absorber, including a suspension ring, characterized in that: a first mounting hole and a second mounting hole are provided at the end of the suspension ring, the suspension ring is detachably connected with a hollow connecting rod through the first mounting hole, the hollow connecting rod is slidably connected with an adjusting rod, an adjusting member is arranged in the second mounting hole and distributed along a direction perpendicular to the axis of the adjusting rod, a first external thread is provided on the outer periphery of the adjusting member, a first internal thread is provided in the second mounting hole, and a conical surface is provided on the outer periphery of the adjusting member and distributed along its own axial direction. The beneficial effect of the present invention is: to provide a rebound force adjustment mechanism for a shock absorber. Compared with the prior art, an adjusting member is arranged at the suspension ring and a conical surface is arranged on the adjusting member, which can not only realize the adjustment of the rebound force of the shock absorber, but also enrich the functions of the suspension ring.

Description

Technical Field

[0001] The present invention specifically relates to a resilience adjustment mechanism for a shock absorber. Background Art

[0002] To mitigate vehicle jitter problems caused by factors such as uneven road surfaces, a shock absorber is essential for a vehicle body. A shock absorber mainly consists of an oil storage cylinder, a guide seat, a piston, a connecting rod, etc. The quality of the shock absorber directly affects the comfort of the vehicle.

[0003] The patent application document with the application number " CN201310291579.7 " discloses a shock absorber. The shock absorber includes an oil storage cylinder and a dust cover. The material of the dust cover is elastic rubber. One end of the dust cover is sealingly connected to the upper suspension ring, and the other end is sealingly connected to the oil storage cylinder. Vent holes are provided on the dust cover. In this technical solution, no adjustable damping force structure is provided at the suspension ring, so the damping force cannot be adjusted. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a resilience adjustment mechanism for a shock absorber in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: A resilience adjustment mechanism for a shock absorber, including a suspension ring. It is characterized in that a first mounting hole is provided at the end of the suspension ring, and a second mounting hole communicated with the first mounting hole is provided inside the suspension ring. The central axes of the second mounting hole and the first mounting hole are perpendicular to each other. The suspension ring is detachably connected with a hollow connecting rod through the first mounting hole. The hollow connecting rod is slidably connected with an adjusting rod. An adjusting member is provided in the second mounting hole and distributed along a direction perpendicular to the axis of the adjusting rod. A first external thread is provided on the outer periphery of the adjusting member, and a first internal thread connected to the first external thread is provided in the second mounting hole. The end of the adjusting rod extends towards the adjusting member until it abuts against the outer wall of the adjusting member. A conical surface is provided on the outer periphery of the adjusting member and distributed along its own axial direction.

[0006] To better understand the above technical solution, the connection relationship between this resilience adjustment device and the shock absorber is described as follows: When this device is assembled and connected to the shock absorber, the hollow connecting rod is connected to the oil seal seat on the shock absorber. An oil outlet hole is provided in the oil seal seat, and the adjusting rod is used to control the size of the oil outlet hole.

[0007] With the above technical solution, compared with the prior art, an adjusting member is provided at the eyelet, and a conical surface is provided on the adjusting member, which can not only adjust the restoring force of the shock absorber, but also enrich the functions of the eyelet; the first mounting hole is used for the detachable connection between the hollow connecting rod and the eyelet; the second mounting hole is used for the movable mounting of the adjusting member to realize the adjustment of the restoring force; the adjusting member is threadedly connected to the eyelet, so that the adjusting member can reciprocate along its own axis. Whenever the adjusting member is in a different position, the contact position between the adjusting rod and the conical surface will also be different. Thus, under the action of the oil pressure and the limiting action of the adjusting member, the adjusting rod will move along its own axis, thereby controlling the size of the oil outlet hole and realizing the adjustment of the restoring force, making reasonable use of space and having a clever concept.

[0008] The above-mentioned restoring force adjusting mechanism for the shock absorber can be further arranged as follows: a third mounting hole which is open towards the second mounting hole is provided on the adjusting member, and a first spring and a first steel ball are arranged in the third mounting hole. The first steel ball is in contact connection with the inner wall of the second mounting hole under the action of the first spring.

[0009] With the above technical solution, when the adjusting member rotates, the first spring and the first steel ball will make a sound, which has a gear position prompting function; when the adjusting member does not rotate, the first spring and the first steel ball will limit the adjusting member to prevent the adjusting member from rotating.

[0010] The above-mentioned restoring force adjusting mechanism for the shock absorber can be further arranged as follows: a limiting ring protruding towards the outside is provided on the adjusting member, and a limiting step is provided in the second mounting hole.

[0011] With the above technical solution, by providing the limiting ring and the limiting step, the adjusting member can be limited along the axis direction of the second mounting hole to prevent excessive rotation, so that the adjusting rod and the adjusting member always keep in contact at the conical surface, which is convenient for realizing the adjustment of the restoring force.

[0012] The above-mentioned restoring force adjusting mechanism for the shock absorber can be further arranged as follows: a first sealing ring is provided between the second mounting hole and the adjusting member.

[0013] With the above technical solution, leakage is avoided.

[0014] The above-mentioned restoring force adjusting mechanism for the shock absorber can be further arranged as follows: a hexagonal socket wrench hole is provided at the end of the adjusting member away from the second mounting hole.

[0015] With the above technical solution, a hexagonal socket wrench hole is provided at the end of the adjusting member, and tools such as a hexagonal socket wrench can be used to control the rotation of the adjusting member, which is convenient for people to adjust.

[0016] The above-mentioned resilience adjustment mechanism for the shock absorber can be further configured as follows: A driving member is also hinged to the second mounting hole. The end of the driving member is provided with a second external thread, and the upper end of the adjusting member is provided with a second internal thread. The driving member is connected to the adjusting member through the second external thread and the second internal thread.

[0017] With the above technical solution, compared with the prior art, by providing an adjusting member at the eyelet and a conical surface on the adjusting member, not only can the resilience of the shock absorber be adjusted, but also the functions of the eyelet can be enriched. Moreover, when adjusting the resilience, the driving member will not move telescopically, only the adjusting member will move telescopically. Compared with the technical solution of separately providing an adjusting member, the components in this technical solution will not protrude from the second mounting hole during adjustment. During adjustment, when the driving member is rotated, since the driving member is hinged in the second mounting hole, the driving member will not move along the axis of the second mounting hole. Also, due to the action of the second external thread and the second internal thread, the adjusting member will move along the axis of the second mounting hole, changing the position of the conical surface, thereby changing the position of the adjusting rod and realizing the adjustment of the resilience.

[0018] The above-mentioned resilience adjustment mechanism for the shock absorber can be further configured as follows: The eyelet is further provided with a fourth mounting hole that is parallel to the second mounting hole. A second spring and a second steel ball are provided in the fourth mounting hole. The second steel ball is in contact connection with the driving member under the action of the second spring.

[0019] With the above technical solution, when the driving member rotates, the second spring and the second steel ball will make a sound, having a gear position prompting function. When the driving member does not rotate, the second spring and the second steel ball will limit the driving member to prevent the driving member from rotating.

[0020] The above-mentioned resilience adjustment mechanism for the shock absorber can be further configured as follows: The driving member is provided with several groups of grooves on the circumferential line corresponding to the position of the second steel ball.

[0021] With the above technical solution, by providing grooves on the driving member, the driving member can bring vibrations when rotating, further prompting the change of the gear position.

[0022] The above-mentioned resilience adjustment mechanism for the shock absorber can be further configured as follows: A nut is threadedly connected to the end of the driving member away from the adjusting member. A washer is further provided between the nut and the driving member.

[0023] With the above technical solution, by adding a nut, compared with using only the driving member, the force transmission is more stable, and the force transmission components combined by the nut and the driving member are more stable in force and not easily deformed.

[0024] The above-mentioned resilience adjustment mechanism for the shock absorber can be further configured as follows: A second sealing ring is provided between the nut and the second mounting hole.

[0025] By adopting the above technical solution, leakage can be avoided.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0027] Figure 1 It is a cross-sectional schematic diagram of the first embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the connection structure between the first embodiment of the present invention and the shock absorber;

[0029] Figure 3 It is a cross-sectional schematic diagram of the second embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of the connection structure between the second embodiment of the present invention and the shock absorber.

[0031] Label Annotations: Hoop 1, Hollow Connecting Rod 2, Adjusting Member 3, Conical Surface 31, First External Thread 32, Third Mounting Hole 33, Limiting Ring 34, Second Internal Thread 35, Hexagon Socket Wrench Hole 36, Adjusting Rod 4, First Spring 5, First Steel Ball 6, First Sealing Ring 7, Driving Member 8, Second External Thread 81, Groove 82, Second Spring 9, Second Steel Ball 10, First Mounting Hole 11, Second Mounting Hole 12, First Internal Thread 13, Limiting Step 14, Fourth Mounting Hole 15, Second Sealing Ring 16, Nut 17, Washer 18. Specific Embodiments

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: As Figures 1 to 2The restoring force adjustment mechanism for the shock absorber shown in the figure comprises a lifting ring 1, the lifting ring 1 is connected with a hollow connecting rod 2, an adjustment mechanism is arranged between the lifting ring 1 and the hollow connecting rod 2, the adjustment mechanism comprises an adjustment member 3, the adjustment member 3 is arranged along a direction perpendicular to the axis of the hollow connecting rod 2 and the adjustment member 3 is threadedly connected to the lifting ring 1, the hollow connecting rod 2 is slidably connected with an adjustment rod 4, the end of the adjustment rod 4 extends toward the adjustment member 3 until it contacts the outer wall of the adjustment member 3, and the outer periphery of the adjustment member 3 is provided with a conical surface 31 arranged along its own axial distribution. The lifting ring 1 is provided with a first mounting hole 11 at the end, and a second mounting hole 12 is provided inside to be conductively connected to the first mounting hole 11, the central axes of the second mounting hole 12 and the first mounting hole 11 are perpendicular to each other, the hollow connecting rod 2 is detachably connected to the lifting ring 1 through the first mounting hole 11, the adjustment member 3 is distributed in the second mounting hole 12, the outer periphery of the adjustment member 3 is provided with a first external thread 32, and the second mounting hole 12 is provided with a first internal thread 13 connected to the first external thread 32. The first mounting hole 11 is used for the detachable connection between the hollow connecting rod 2 and the lifting ring 1; the second mounting hole 12 is used for the movable installation of the adjusting member 3 to adjust the restoring force. Compared with the prior art, the adjusting member 3 is arranged at the lifting ring 1, and the conical surface 31 is arranged on the adjusting member 3, which can not only adjust the restoring force of the shock absorber, but also enrich the function of the lifting ring 1; the adjusting member 3 is threadedly connected to the lifting ring 1, so that the adjusting member 3 can move back and forth along its own axis. Whenever the adjusting member 3 is located at a different position, the contact position between the adjusting rod 4 and the conical surface 31 will also be different. Therefore, the adjusting rod 4 will move along its own axis under the action of the oil pressure and the limiting action of the adjusting member 3, thereby controlling the size of the oil outlet hole, achieving the adjustment of the restoring force, making reasonable use of space, and having an ingenious design.

[0034] The adjusting member 3 is provided with a third mounting hole 33 which is opened toward the second mounting hole 12, and the third mounting hole 33 is provided with a first spring 5 and a first steel ball 6. The first steel ball 6 is connected with the inner wall of the second mounting hole 12 under the action of the first spring 5. When the adjusting member 3 rotates, the first spring 5 and the first steel ball 6 will make a sound, which has a gear position prompting function; when the adjusting member 3 does not rotate, the first spring 5 and the first steel ball 6 will limit the adjusting member 3 to prevent the adjusting member 3 from rotating.

[0035] The adjusting member 3 is provided with a stop ring 34 protruding outward, and the second mounting hole 12 is provided with a stop step 14. By providing the stop ring 34 and the stop step 14, the adjusting member 3 can be limited along the axis direction of the second mounting hole 12 to avoid excessive rotation, so that the adjusting rod 4 and the adjusting member 3 are always kept in contact at the conical surface 31, so as to facilitate the adjustment of the restoring force.

[0036] A first sealing ring 7 is provided between the second mounting hole 12 and the adjusting member 3 to avoid leakage.

[0037] The end of the adjusting member 3 away from the second mounting hole 12 is provided with an Allen wrench hole 36. By providing the Allen wrench hole 36 at the end of the adjusting member, tools such as an Allen wrench can be used to control the rotation of the adjusting member, facilitating adjustment by people.

[0038] Principle of adjusting the restoring force in Embodiment 1: Use an Allen wrench or the like to rotate the adjusting member 3 through the Allen wrench hole 36. Under the action of the first external thread 32 and the first internal thread 13, the adjusting member 3 will rotate within the second mounting hole 12 and at the same time move axially along the second mounting hole 12. The adjusting rod 4 always faces the adjusting member 3 under the pressure of the oil in the shock absorber. During the rotation of the adjusting rod 4, the adjusting rod 4 will contact different positions of the adjusting rod 4, thereby realizing the adjustment of the restoring force; and during the adjustment process, the first steel ball 6 and the first spring 5 will make sounds to indicate the gear change.

[0039] Embodiment 2: As Figures 3 to 4The rebound force adjustment mechanism for a shock absorber shown in the figure includes a suspension ring 1, the suspension ring 1 is connected with a hollow connecting rod 2, an adjustment mechanism is arranged between the suspension ring 1 and the hollow connecting rod 2, the adjustment mechanism includes an adjustment part 3, the adjustment part 3 is arranged along the direction perpendicular to the axis of the hollow connecting rod 2 and the adjustment part 3 is threadedly connected with the suspension ring 1, an adjustment rod 4 is slidably connected to the hollow connecting rod 2, the end of the adjustment rod 4 extends towards the adjustment part 3 until it contacts the outer wall of the adjustment part 3, and a conical surface 31 is arranged on the outer periphery of the adjustment part 3 along its own axial direction. The end of the suspension ring 1 is provided with a first installation hole 11 and internally provided with a second installation hole 12 which is conductively connected with the first installation hole 11, the central axes of the second installation hole 12 and the first installation hole 11 are perpendicular to each other, the hollow connecting rod 2 is detachably connected with the suspension ring 1 through the first installation hole 11, the adjustment part 3 is distributed in the second installation hole 12, a first external thread 32 is arranged on the outer periphery of the adjustment part 3, and a first internal thread 13 which is connected with the first external thread 32 is arranged in the second installation hole 12. The second installation hole 12 is also hinged with a driving part 8, a second external thread 81 is arranged at the end of the driving part 8, a second internal thread 35 is arranged at the upper end of the adjustment part 3, and the driving part 8 is connected with the adjustment part 3 through the second external thread 81 and the second internal thread 35. Compared with the prior art, the adjustment part 3 is arranged at the suspension ring 1 and the conical surface 31 is arranged on the adjustment part 3, which can not only realize the adjustment of the shock absorber rebound force, but also enrich the functions of the suspension ring 1; and when adjusting the rebound force, the driving part 8 will not make telescopic movement, only the adjustment part 3 makes telescopic movement. Compared with the technical solution of arranging the adjustment part 3 alone, the phenomenon that the component extends out of the second installation hole 12 will not occur during adjustment; during adjustment, when the driving part 8 is rotated, since the driving part 8 is hinged in the second installation hole 12, the driving part 8 will not move along the axis of the second installation hole 12. Also due to the action of the second external thread 81 and the second internal thread 35, the adjustment part 3 will move along the axis of the second installation hole 12, changing the position of the conical surface 31, thereby changing the position of the adjustment rod 4 to realize the adjustment of the rebound force.

[0040] A fourth installation hole 15 which is parallel to the second installation hole 12 is also arranged on the suspension ring 1, a second spring 9 and a second steel ball 10 are arranged in the fourth installation hole 15, and the second steel ball 10 is in contact connection with the driving part 8 under the action of the second spring 9. When the driving part 8 rotates, the second spring 9 and the second steel ball 10 will make a sound, which has a gear position prompting function; when the driving part 8 does not rotate, the second spring 9 and the second steel ball 10 will limit the driving part 8 to prevent the driving part 8 from rotating.

[0041] A plurality of groups of grooves 82 are arranged on the driving part 8 on the circumferential line corresponding to the position of the second steel ball 10. By arranging the grooves 82 on the driving part 8, the driving part 8 can bring vibrations when rotating, further prompting the gear position change.

[0042] A nut 17 is threadedly connected to the end of the driving member 8 away from the adjusting member 3, and a washer 18 is further provided between the nut 17 and the driving member 8. By adding the nut 17, compared with using only the driving member 8, the force transmission is more stable, and the force transmission components combined by the nut 17 and the driving member 8 are more stable in force and not easily deformed.

[0043] A second sealing ring 16 is provided between the nut 17 and the second mounting hole 12. To avoid leakage.

[0044] Principle of adjusting the restoring force in the second embodiment: When the driving member 8 is rotated, the driving member 8 only rotates and does not move axially along the second mounting hole 12. Under the action of the second external thread 81 and the second internal thread 35, the adjusting member 3 rotates in the second mounting hole 12 and also moves axially along the second mounting hole 12. The adjusting rod 4 always faces the adjusting member 3 under the pressure of the oil in the shock absorber. During the rotation of the adjusting rod 4, the adjusting rod 4 will contact different positions of the adjusting rod 4, thereby realizing the adjustment of the restoring force; and during the adjustment process, the second steel ball 10 and the second spring 9 will make sounds to indicate the gear change.

[0045] Differences between the first embodiment and the second embodiment: Both embodiments can achieve the adjustment of the restoring force. However, in the first embodiment during adjustment, the adjusting rod 4 will move axially during the process of manually rotating the adjusting rod 4; while in the second embodiment during adjustment, when manually rotating the driving member 8, the driving member 8 only rotates in the second mounting hole 12 and does not move axially, so the manual operation is more convenient.

[0046] To better understand the above two specific embodiments, the connection relationship between the restoring force adjusting device and the shock absorber is described as follows: When the two embodiments are assembled and connected to the shock absorber, the hollow connecting rod 2 is connected to the oil seal seat on the shock absorber, and an oil outlet hole is provided in the oil seal seat. The adjusting member 3 is used to control the size of the oil outlet hole.

Claims

1. The resilience adjustment mechanism for a shock absorber, including a suspension ring, is characterized in that: The end of the eyebolt is provided with a first mounting hole, and a second mounting hole communicated with the first mounting hole is arranged inside. The central axes of the second mounting hole and the first mounting hole are perpendicular to each other. The eyebolt is detachably connected with a hollow connecting rod through the first mounting hole. The hollow connecting rod is slidably connected with an adjusting rod. An adjusting member is arranged in the second mounting hole and distributed along a direction perpendicular to the axis of the adjusting rod. A first external thread is arranged on the outer periphery of the adjusting member, and a first internal thread connected with the first external thread is arranged in the second mounting hole. The end of the adjusting rod extends towards the adjusting member until it abuts against the outer wall of the adjusting member. A conical surface is arranged on the outer periphery of the adjusting member and distributed along its own axial direction. A driving member is rotatably arranged in the second mounting hole. When the driving member rotates, the driving member will not move along the axis of the second mounting hole. A second external thread is arranged at the end of the driving member, and a second internal thread is arranged at the upper end of the adjusting member. The driving member is connected with the adjusting member through the second external thread and the second internal thread. The eyebolt is also provided with a fourth mounting hole parallel to the second mounting hole. A second spring and a second steel ball are arranged in the fourth mounting hole. The second steel ball is in abutting connection with the driving member under the action of the second spring. A plurality of groups of grooves are arranged on the driving member on the circumferential line corresponding to the position of the second steel ball. A nut is threadedly connected to the end of the driving member away from the adjusting member. A washer is also arranged between the nut and the driving member. When the resilience adjusting mechanism is installed on the shock absorber, the hollow connecting rod is connected with the oil seal seat on the shock absorber. An oil outlet hole is arranged in the oil seal seat. The adjusting rod is used to control the size of the oil outlet hole.

2. The resilience adjustment mechanism for a shock absorber according to claim 1, characterized in that: A second sealing ring is arranged between the nut and the second mounting hole.

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