Adjusting mechanism of shock absorber

Abstract

The utility model belongs to the technical field of shock absorbers, and discloses an adjusting mechanism of a shock absorber, which comprises a damping cylinder, a damping piston rod is inserted into the lower end of the damping cylinder in a sliding manner, the lower end of the damping piston rod is fixedly connected with a lower check block, and external threads are arranged on the outer wall of the upper end of the damping cylinder. An upper adjusting check block is rotationally installed on the outer wall of the damping cylinder through external threads in a threaded mode, the damping piston rod is sleeved with a damping spring, the upper end of the damping spring abuts against the bottom of the upper adjusting check block, the bottom of the damping spring presses the top of the lower check block, and a driving mechanism is arranged on the upper adjusting check block. The upper adjusting check block capable of rotating in the threaded mode is arranged on the outer wall of the damping cylinder, the driving mechanism capable of rotating in the rotating direction is arranged, the compression length of the damping spring is conveniently adjusted, and compared with a traditional damper adjusting mode, complex tools and tedious operation steps are not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber technical field, especially a kind of adjusting mechanism of shock absorber. BACKGROUND

[0002] Shock absorber is used to suppress the oscillation of spring shock-absorbing rebound and absorb impact from road surface, and is widely used in motorcycle, to accelerate the attenuation of frame and vehicle body vibration, to improve the ride comfort of motorcycle. When passing uneven road, although shock-absorbing spring can filter road vibration, spring itself will still have reciprocating motion, and shock absorber is used to suppress this spring jumping.

[0003] The utility model discloses a kind of motorcycle shock absorbers of Chinese utility model patent No.CN213981788U, including working cylinder, the inside of the working cylinder is slidably connected with piston rod, the outside of the working cylinder and piston rod is equipped with shock-absorbing spring, the bottom of the working cylinder is fixedly connected with bottom plate, the top end outer surface of the piston rod is equipped with fixed connector top plate, the outer surface of the bottom plate is equipped with first protective cylinder, the outer surface of the first protective cylinder is equipped with slidably connected second protective cylinder.

[0004] The above shock absorber although solve some defects existing in existing shock absorber, but still exist some deficiencies in actual use process, for example, when the compression length of shock-absorbing spring needs to be adjusted, by rotating second knob, to drive second support cylinder to move upwards or downwards, to complete the adjustment of shock-absorbing spring compression length. Since shock absorber is generally installed in the rear of motorcycle, and the operation space is limited, when using wrench to rotate second knob, it can be rotated less than a circle, and due to the obstruction of frame, wrench needs to be taken down again, and second knob is rotated from appropriate position, and the operation is complex and inconvenient.

[0005] Therefore, an adjusting mechanism of shock absorber is provided. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an adjusting mechanism of shock absorber, to solve or at least alleviate one or more of the above problems and other aspects in prior art.

[0007] In order to achieve the above purpose, the main technical scheme adopted by the utility model includes:

[0008] The adjusting mechanism of a shock absorber comprises a damping cylinder, a damping piston rod is slidingly inserted into the lower end of the damping cylinder, a lower stopper is fixedly connected to the lower end of the damping piston rod, an outer thread is formed on the outer wall of the upper end of the damping cylinder, an upper adjusting stopper is threadedly rotatably installed on the outer wall of the damping cylinder, a shock absorbing spring is sleeved on the damping piston rod, the upper end of the shock absorbing spring abuts against the bottom of the upper adjusting stopper, the bottom of the shock absorbing spring is pressed against the top of the lower stopper, and a driving mechanism is arranged on the upper adjusting stopper.

[0009] The driving mechanism comprises a ratchet wheel and a rotating shell, the ratchet wheel is fixedly connected to the top of the upper adjusting stopper, the rotating shell is rotatably installed on the ratchet wheel, the inner part of the rotating shell is respectively provided with a first pawl and a second pawl, the ends, away from the ratchet wheel, of the first pawl and the second pawl are rotatably installed on the rotating shell, when the first pawl meshes with the ratchet wheel, the ratchet wheel can be driven to rotate clockwise, when the second pawl meshes with the ratchet wheel, the ratchet wheel can be driven to rotate counterclockwise, the inner part of the rotating shell is provided with a pawl switching assembly, the outer wall of the rotating shell is formed with a hinged seat, and a handle is hinged to the hinged seat.

[0010] In the adjusting mechanism of a shock absorber according to the utility model, the inner part of the rotating shell is provided with a first elastic sheet and a second elastic sheet, one end of the first elastic sheet and one end of the second elastic sheet are fixedly connected to the inner wall of the rotating shell, the movable end of the first elastic sheet abuts against the upper end on one side of the first pawl, and the movable end of the second elastic sheet abuts against the upper end of the second pawl.

[0011] In the adjusting mechanism of a shock absorber according to the utility model, the pawl switching assembly comprises a switching head, the switching head is rotatably installed in the inner part of the rotating shell through a rotating rod, and the switching head is arranged between the first pawl and the second pawl.

[0012] In the adjusting mechanism of a shock absorber according to the utility model, one end, away from the switching head, of the rotating rod is fixedly connected with a switching knob after rotating through the rotating shell.

[0013] In the adjusting mechanism of a shock absorber according to the utility model, the inner part of the rotating shell is formed with an annular plate, the inner side of the annular plate and the area surrounded by the rotating shell form a bearing assembly part, the top of the ratchet wheel is fixedly connected with a steel ring, the outer wall of the steel ring is rotatably sleeved with a bearing, and the outer ring of the bearing is fixedly connected in the inner part of the bearing assembly part.

[0014] The utility model discloses a kind of adjusting mechanism of shock absorber, wherein, the outer wall of the damping cylinder is fixedly connected with receiving card holder, the upper end of the handle can be clamped in the inside of the receiving card holder.

[0015] The utility model at least has following beneficial effects:

[0016] The utility model discloses a kind of adjusting mechanism of shock absorber, wherein, the outer wall of the damping cylinder is fixedly connected with receiving card holder, the upper end of the handle can be clamped in the inside of the receiving card holder. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application, and form part of the present application, the illustrative embodiment of the present application and its explanation are used to explain the present application, and do not constitute undue limitation on the present application.In the drawings:

[0018] Figure 1 It is the structure schematic view of adjusting mechanism of shock absorber of the utility model;

[0019] Figure 2 It is the structure schematic view of adjusting mechanism of shock absorber of the utility model; Figure 1

[0020] Figure 3 It is the structure schematic view of adjusting mechanism of shock absorber of the utility model;

[0021] Figure 4 It is the structure schematic view of adjusting mechanism of shock absorber of the utility model; Figure 3

[0022] Figure 5 It is the connection structure schematic view of ratchet wheel and rotating shell of the utility model;

[0023] Figure 6 It is the structure schematic view of rotating shell of the utility model.

[0024] EXPLANATION OF DRAWINGS:

[0025] 1, damping cylinder;101, external thread;102, receiving card holder;2, damping piston rod;3, lower block;4, upper adjusting block;5, drive mechanism;501, ratchet wheel;5011, steel ring;502, rotating shell;5021, hinged seat;5022, handle;5023, annular plate;5024, bearing assembly part;503, switching knob;504, switching head;505, first pawl;506, first elastic sheet;507, second pawl;508, second elastic sheet;6, shock absorbing spring.​​ DETAILED DESCRIPTION

[0026] The implementation of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the realization process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0027] Please refer to Figures 1 to 6 The embodiment of the utility model provides a shock absorber's adjusting mechanism, including damping cylinder 1, the lower extreme of damping cylinder 1 is slidably inserted with damping piston rod 2, the lower extreme of damping piston rod 2 is fixedly connected with lower stopper 3, the upper end outer wall of damping cylinder 1 is equipped with external thread 101, the outer wall of damping cylinder 1 is installed with upper adjusting stopper 4 through external thread 101 screw thread rotation, damping piston rod 2 is equipped with shock absorber spring 6, the upper end of shock absorber spring 6 is in upper adjusting stopper 4's bottom, the bottom of shock absorber spring 6 is pressed in lower stopper 3's top, and upper adjusting stopper 4 is provided with drive mechanism 5;Drive mechanism 5 includes ratchet wheel 501 and rotary shell 502, ratchet wheel 501 is fixedly connected in upper adjusting stopper 4's top, and rotary shell 502 is rotatably installed on ratchet wheel 501, and the inside of rotary shell 502 is provided with first pawl 505 and second pawl 507 respectively, the end of first pawl 505 and second pawl 507 away from ratchet wheel 501 is rotatably installed on rotary shell 502, when first pawl 505 engages with ratchet wheel 501, can drive ratchet wheel 501 clockwise rotation, when second pawl 507 engages with ratchet wheel 501, can drive ratchet wheel 501 counterclockwise rotation, the inside of rotary shell 502 is provided with pawl switching assembly, the outer wall of rotary shell 502 is shaped and is provided with hinged seat 5021, and hinged seat 5021 is hinged with handle 5022.

[0028] When needing to adjust the compression length of shock absorber spring 6, operating personnel rotates rotary shell 502 by operating handle 5022. According to the need, first pawl 505 or second pawl 507 is engaged with ratchet wheel 501 by pawl switching assembly. If first pawl 505 engages with ratchet wheel 501, rotary shell 502 rotates and drives ratchet wheel 501 to rotate clockwise, thereby making upper adjusting stopper 4 move upwards along the external thread 101 of damping cylinder 1, and the compression degree of shock absorber spring 6 is reduced;If second pawl 507 engages with ratchet wheel 501, rotary shell 502 rotates and drives ratchet wheel 501 to rotate counterclockwise, and upper adjusting stopper 4 moves downwards, and the compression degree of shock absorber spring 6 is increased.

[0029] In the embodiment, the inside of rotary shell 502 is provided with first elastic sheet 506 and second elastic sheet 508, one end of first elastic sheet 506 and one end of second elastic sheet 508 are fixedly connected to the inner wall of rotary shell 502, the movable end of first elastic sheet 506 abuts against the upper end of one side of first pawl 505, and the movable end of second elastic sheet 508 abuts against the upper end of second pawl 507.

[0030] The first elastic sheet 506 and the second elastic sheet 508 provide pre-tightening force for the first pawl 505 and the second pawl 507 respectively, so that the pawls and the ratchet wheel 501 are always in good engagement state, preventing the pawls from being disengaged from the ratchet wheel 501 under the action of vibration or external force, and improving the stability and reliability of the adjusting mechanism. During the rotation of the rotating shell 502, the active end of the first elastic sheet 506 is always against the upper end of one side of the first pawl 505, and the active end of the second elastic sheet 508 is against the upper end of the second pawl 507. When the pawls contact the ratchet wheel 501, the elastic force of the elastic sheet makes the pawls tightly fit on the tooth surface of the ratchet wheel 501, ensuring effective power transmission. Even when the shock absorber works and vibrates, the elastic sheet can compensate for the slight displacement between the pawls and the ratchet wheel 501, maintaining good engagement.

[0031] In this embodiment, the pawl switching assembly includes a switching head 504, which is rotatably installed in the rotating shell 502 through a rotating rod. The switching head 504 is arranged between the first pawl 505 and the second pawl 507, and is rotated when the adjusting direction needs to be switched. When the switching head 504 is rotated, one of the pawls is pushed to disengage from the ratchet wheel 501, while the other pawl is engaged with the ratchet wheel 501. For example, when it is needed to switch from clockwise adjustment to counterclockwise adjustment, the first pawl 505 is lifted to disengage from the ratchet wheel 501 by rotating the switching head 504, and at this time the second pawl 507 is engaged with the ratchet wheel 501 under the elastic pressing of the second elastic sheet 508, so as to realize the change of the adjusting direction.

[0032] In this embodiment, the end of the rotating rod away from the switching head 504 is rotatably fixedly connected with a switching knob 503 after penetrating through the rotating shell 502. The operator rotates the switching knob 503, the switching knob 503 drives the rotating rod fixedly connected therewith to rotate, and the rotating rod drives the switching head 504 in the rotating shell 502 to rotate, thereby realizing the switching of the engagement state of the first pawl 505 and the second pawl 507 with the ratchet wheel 501.

[0033] In this embodiment, an annular plate 5023 is formed in the interior of the rotating shell 502, and the inner side of the annular plate 5023 and the area surrounded by the rotating shell 502 form a bearing assembly part 5024. The top of the ratchet wheel 501 is fixedly connected with a steel ring 5011, the outer wall of the steel ring 5011 is rotatably sleeved with a bearing, and the outer ring of the bearing is fixedly connected in the interior of the bearing assembly part 5024. The setting of the bearing greatly reduces the rotating friction between the rotating shell 502 and the ratchet wheel 501, makes the rotating operation more smooth, reduces energy loss, and improves the adjusting efficiency.

[0034] In the embodiment, the outer wall of the damping cylinder 1 is fixedly connected with a card receiving clip 102, the upper end of the handle 5022 can be clamped inside the card receiving clip 102, and the card receiving clip 102 provides a storage function for the handle 5022, so that the handle 5022 can be stored when the adjusting mechanism is not used.

[0035] Working principle: when the damping performance of the shock absorber needs to be adjusted, the operator needs to take out the handle 5022 from the card receiving clip 102, if the first pawl 505 is engaged with the ratchet wheel 501, when the rotating shell 502 rotates, the ratchet wheel 501 will rotate clockwise, because the ratchet wheel 501 is fixedly connected with the upper adjusting block 4, the upper adjusting block 4 will move upwards along the outer thread 101 of the damping cylinder 1, so that the compression degree of the damping spring 6 is reduced, and the damping effect of the shock absorber is weakened, if the second pawl 507 is engaged with the ratchet wheel 501, the rotating shell 502 rotates to drive the ratchet wheel 501 to rotate counterclockwise, and the upper adjusting block 4 moves downwards along the outer thread 101, so that the compression degree of the damping spring 6 is increased, and the damping effect of the shock absorber is strengthened, during the adjustment process, if it is necessary to change the adjusting direction, the switching knob 503 can be operated to achieve the purpose.

[0036] The above description shows and describes several preferred embodiments of the utility model, but as described above, it should be understood that the utility model is not limited to the forms disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified by the above teaching or related technical or knowledge within the scope of the utility model concept described herein. The modification and change made by the person skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the protection scope of the claims attached to the utility model.

Claims

1. A damping force adjustment mechanism for a shock absorber, characterized by comprising: The damping cylinder is provided with a damping piston rod inserted in the lower end of the damping cylinder, a lower stopper fixedly connected to the lower end of the damping piston rod, an outer thread formed on the outer wall of the upper end of the damping cylinder, an upper adjusting stopper threadedly and rotatably installed on the damping cylinder through the outer thread, a damping spring sleeved on the damping piston rod, the upper end of the damping spring abutting against the bottom of the upper adjusting stopper, the bottom of the damping spring pressing against the top of the lower stopper, and a driving mechanism arranged on the upper adjusting stopper.

2. A shock absorber adjusting mechanism according to claim 1, characterized in that: The driving mechanism comprises a ratchet fixedly connected to the top of the upper adjusting stopper and a rotating shell rotatably installed on the ratchet, the rotating shell is provided with a first pawl and a second pawl inside, the first pawl and the second pawl are rotatably installed on the rotating shell at the end away from the ratchet, the first pawl can drive the ratchet to rotate clockwise when the first pawl engages with the ratchet, the second pawl can drive the ratchet to rotate counterclockwise when the second pawl engages with the ratchet, the rotating shell is provided with a pawl switching assembly inside, and the rotating shell is provided with a hinged seat formed on the outer wall, and a handle is hinged to the hinged seat.

3. A shock absorber adjustment mechanism according to claim 2, wherein: The rotating shell is provided with a first elastic sheet and a second elastic sheet inside, one end of the first elastic sheet and one end of the second elastic sheet are fixedly connected to the inner wall of the rotating shell, the movable end of the first elastic sheet abuts against the upper end of one side of the first pawl, and the movable end of the second elastic sheet abuts against the upper end of the second pawl.

4. A shock absorber adjusting mechanism according to claim 3, wherein: The pawl switching assembly comprises a switching head rotatably installed in the rotating shell through a rotating rod, and the switching head is arranged between the first pawl and the second pawl.

5. A shock absorber adjustment mechanism according to claim 4, wherein: The end of the rotating rod away from the switching head is fixedly connected to a switching knob after rotating through the rotating shell.

6. A shock absorber adjustment mechanism according to claim 5, wherein: The rotating shell is provided with an annular plate formed inside, the inner side of the annular plate and the area surrounded by the rotating shell form a bearing assembly part, the top of the ratchet is fixedly connected to a steel ring, the outer wall of the steel ring is rotatably sleeved with a bearing, and the outer ring of the bearing is fixedly connected to the inside of the bearing assembly part.

7. A shock absorber adjustment mechanism according to claim 6, wherein: The outer wall of the damping cylinder is fixedly connected to a receiving card clamp, and the upper end of the handle can be clamped inside the receiving card clamp.

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