Shock absorber with stroke limiting structure

Abstract

The shock absorber with the stroke limiting structure comprises an upper oil filling port, a supporting top seat, a spring and a rotary disc, a group of pressure top seats used for sealing and covering the upper end of an oil tank are arranged at the lower end of the upper oil filling port, and a group of connecting bridges are arranged on the left side of the pressure top seats. And the left side of the connecting bridge is provided with a group of supporting top seats which are used for being connected, fixed and limited with the damping cylinder and the external thread shell. Compared with the prior art, the spring clamping device has the following beneficial effects that after the supporting top seats or the supporting bases are stressed, the supporting top seats or the clamping seats are used for pressing the spring; when the spring generates compression deformation, the inner pressing rod drives the inner sealing piston to extrude the interior of the inner cavity, the inner sealing piston extrudes hydraulic oil in the interior of the inner cavity, damping slow release is generated, the reverse acting force degree of the spring is limited according to the viscous release degree of oil in the damping cylinder, and therefore the requirement for stable use of the device in different environments is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile shock absorber, and relates to a shock absorber with stroke limiting structure. BACKGROUND

[0002] The existing shock absorber has several shortcomings in terms of being unable to adjust the spring stroke length, mainly including poor adaptability to different road conditions, reduced vehicle ride comfort, and potential loss of vehicle performance. The root cause of these shortcomings lies in the fixed matching mode of the shock absorber and the spring, which results in the inability to effectively adjust the stroke length when facing different road impacts, thereby failing to provide the best damping effect. When driving on uneven roads, the fixed stroke length may cause the shock absorber to fail to fully absorb the impact, resulting in vehicle jolting and affecting ride comfort; at the same time, the compression and elongation of the spring cannot be optimally controlled, which may have a negative impact on the handling performance of the vehicle and the grip of the tires, and cannot provide the best damping effect, therefore, there is an urgent need for a shock absorber with stroke limiting structure to solve the above problems. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a shock absorber with stroke limiting structure to solve the problems raised in the background art.

[0004] The utility model discloses the following technical scheme realizes: a shock absorber with stroke limiting structure, comprising: an upper oil filler and a rotary disc, a group of pressure top seats for sealing the upper end of the oil tank are arranged at the lower end of the upper oil filler, a group of connecting bridges are arranged at the left side of the pressure top seats, a group of support top seats for connecting and fixing the damping cylinder and the outer threaded shell and limiting are arranged at the left side of the connecting bridges;

[0005] A group of inner oil paths for transmitting and flowing pressure oil are arranged in the support top seats, the connecting bridges and the pressure top seats, the inner oil paths are in communication with the oil tank and the damping cylinder, the damping cylinder is a hydraulic damper, and the connecting bridges, the support top seats and the pressure top seats are integrated.

[0006] As a preferred embodiment, a group of oil tanks for storing pressure oil are arranged at the lower end of the pressure top seats, and a group of pressure ring sleeves for keeping the upper end of the oil tank sealed are arranged between the oil tanks and the pressure top seats.

[0007] As a preferred implementation, the pressure ring is made of rubber material, and is connected with the lower end of the pressure top seat through thread sealing and screwing in the threaded groove on the upper end of the oil tank. A group of damping cylinders are arranged at the lower end of the middle position of the support top seat for buffering the pressure of the support top seat. When the user installs the shock absorber in the relevant structure, the support top seat or the support bottom seat is stressed, and then the spring is pressed through the support top seat or the embedded seat. The spring generates compression deformation, drives the inner pressure rod, and extrudes the inner sealing piston in the inner cavity. The inner sealing piston extrudes the hydraulic oil in the inner cavity and generates damping buffering. The degree of the reverse force of the spring is limited according to the degree of oil viscosity in the damping cylinder, so as to meet the stable use of the device in different environments.

[0008] As a preferred implementation, the outer side of the upper end of the damping cylinder is provided with a group of external thread shells for limiting the stroke length of the spring. The external thread shell is arranged in a concentric manner with the cross section of the damping cylinder. The upper end of the damping cylinder and the external thread shell are connected and fixed with the lower end of the pressure top seat.

[0009] As a preferred implementation, the outer side of the external thread shell is provided with a group of adjusting rings for limiting the stroke height of the spring. The inner side of the adjusting ring is provided with an internal thread. The adjusting ring is connected with the external thread shell through thread screwing. A group of springs are arranged at the lower end of the adjusting ring for buffering the shock absorbing degree of the automobile driving. When the user needs to adjust the stroke height of the spring, the adjusting ring is rotated along the outer side of the external thread shell. The stroke length of the spring is adjusted according to the rotation height of the adjusting ring during the rotation of the adjusting ring on the outer side of the external thread shell, so as to reach the required state. In this way, the soft and hard degree of the spring buffering is adjusted, and different use requirements are met.

[0010] As a preferred implementation, the inner cavity is arranged in the damping cylinder for oil buffering. A group of inner pressure rods are arranged at the lower end of the middle position of the inner cavity for maintaining the pressure invasion.

[0011] A group of inner sealing pistons are arranged at the outer side of the upper end of the inner pressure rod for active sealing connection with the inner wall of the inner cavity. The inner sealing piston is active sealing connected with the inner cavity. The inner pressure rod and the support bottom seat are also provided with oil cavities, which are in communication with the inner cavity and the lower oil outlet.

[0012] As a preferred implementation, a group of support soft plugs are arranged at the outer side of the middle position of the inner pressure rod for limiting the stroke height of the inner pressure rod. The support soft plug is connected and fixed with the inner pressure rod. The support soft plug is made of rubber material, and is sealingly and limitingly embedded with the lower end interface of the inner cavity.

[0013] As a preferred embodiment, the spring and the lower end of the inner pressure rod are provided with a set of embedding seats for supporting them, the lower end of the embedding seats is provided with a set of support bases for externally connecting and fixing the shock-absorbing structure, and the inner part of the lower end of the support base and the upper end of the support base are respectively provided with a set of connecting holes for connecting with the external structure.

[0014] As a preferred embodiment, the right side of the support base is provided with a set of lower oil outlets for discharging and replacing hydraulic oil, and the outer sides of the lower oil outlets and the upper oil inlets are respectively provided with a set of screw caps, and the outer sides of the screw caps are provided with external anti-skid patterns for increasing the rotating friction.

[0015] After the above technical scheme is adopted, the beneficial effects of the present application are as follows: when the support top or the support base is stressed, the spring is pressed by the support top or the embedding seat, the spring is compressed and deformed, the inner pressure rod is driven to extrude the inner sealing piston in the inner cavity, the inner sealing piston extrudes the hydraulic oil in the inner cavity and generates damping and slow release, and the degree of the reverse force of the spring is limited according to the viscosity of the oil in the damping cylinder, so that the device can be stably used in different environments.

[0016] When the user needs to adjust the stroke height of the spring, the adjusting ring is rotated along the outer side of the outer threaded shell, the stroke length of the spring is adjusted according to the rotation height of the adjusting ring during the rotation of the adjusting ring along the outer side of the outer threaded shell, and the required state is achieved, so that the softness and hardness of the slow release of the spring are adjusted, and different use requirements are met. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a front view structural schematic diagram of the shock absorber with the stroke limiting structure of the present application;

[0019] Figure 2 It is a front side top view structural position schematic diagram of the inner pressure rod and the support soft plug in the shock absorber with the stroke limiting structure of the present application;

[0020] Figure 3 It is a front view structural schematic diagram of the shock absorber with the stroke limiting structure of the present application; Figure 2 It is an enlarged schematic diagram of the structure at A in the shock absorber with the stroke limiting structure of the present application;

[0021] Figure 4The utility model relates to a damping cylinder and right oblique front side overhead structure diagram of oil tank with stroke limiting structure of shock absorber,

[0022] In the figure: 100 - upper oil inlet, 110 - pressure top seat, 120 - pressure ring cover, 130 - oil tank, 140 - support top seat, 150 - outer threaded shell, 160 - adjusting ring, 170 - spring, 180 - damping cylinder, 190 - inner pressure rod, 200 - support soft plug, 210 - embedding seat, 220 - support base, 230 - lower oil outlet, 240 - rotary disc. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figures 1-4 A shock absorber with stroke limiting structure, comprising: upper oil inlet 100, pressure top seat 110, support top seat 140, spring 170 and rotary cover 240, a group of pressure top seats 110 for sealing cover on the upper end of the oil tank 130 are arranged at the lower end of the upper oil inlet 100, a group of connecting bridges are arranged at the left side of the pressure top seat 110, a group of support top seats 140 for connecting and fixing and limiting the damping cylinder 180 and the outer threaded shell 150 are arranged at the left side of the connecting bridge.

[0025] A group of inner oil paths for transmitting pressure oil are arranged in the support top seat 140, the connecting bridge and the pressure top seat 110, the inner oil paths are in communication with the inside of the oil tank 130 and the inside of the damping cylinder 180, the damping cylinder 180 is a hydraulic damper, and the connecting bridge, the support top seat 140 and the pressure top seat 110 are integrated.

[0026] A group of oil tanks 130 for storing pressure oil are arranged at the lower end of the pressure top seat 110, and a group of pressure ring covers 120 for keeping the upper end of the oil tank 130 sealed are arranged between the oil tank 130 and the pressure top seat 110.

[0027] The pressure ring cover 120 is made of rubber material and is connected by thread sealing and screwing with the upper end threaded groove of the oil tank 130 and the lower end of the pressure top seat 110, and a group of damping cylinders 180 for slowly releasing the pressure of the support top seat 140 are arranged at the lower end of the middle position of the support top seat 140.

[0028] Please refer to Figures 1-4, as the first embodiment of the utility model: when the user installs the shock absorber in the relevant structure, the support top 140 or the support base 220 is stressed, then the spring 170 is pressed and held through the support top 140 or the embedded position seat 210, the spring 170 generates compression deformation, the inner compression rod 190 drives the inner sealing piston to extrude in the inner cavity, and the inner sealing piston extrudes hydraulic oil in the inner cavity and generates damping slow release, and the reverse force degree of the spring 170 is limited according to the oil viscosity degree in the damping cylinder 180, so that the device can be stably used in different environments.

[0029] A group of external thread shells 150 for limiting the stroke length of the spring 170 are arranged on the outer side of the upper end of the damping cylinder 180, the external thread shell 150 is arranged in a concentric manner with the cross section of the damping cylinder 180, and the upper end of the damping cylinder 180 and the upper end of the external thread shell 150 are connected and fixed with the lower end of the pressure top 110.

[0030] A group of adjusting rings 160 for limiting the stroke height of the spring 170 are arranged on the outer side of the external thread shell 150, the inner side of the adjusting ring 160 is provided with internal threads, the adjusting ring 160 is connected in a threaded rotation manner with the external thread shell 150, and the lower end of the adjusting ring 160 is provided with a group of springs 170 for matching the damping cylinder 180 to slow release the shock absorbing degree of the automobile driving.

[0031] Please refer to Figures 1-4 , as the second embodiment of the utility model: based on the description in the above embodiment, further, when the user needs to adjust the stroke height of the spring 170, the adjusting ring 160 is rotated along the outer side of the external thread shell 150, the stroke length of the spring 170 is adjusted according to the rotation height of the adjusting ring 160 in the rotation process of the adjusting ring 160 on the outer side of the external thread shell 150, so as to reach the required state, so as to adjust the soft and hard degree of the slow release of the spring 170, and different use requirements are met.

[0032] The inner cavity for oil slow release is arranged in the damping cylinder 180, a group of inner compression rods 190 for keeping pressure invasion are arranged at the lower end of the middle position of the inner cavity;

[0033] A group of inner sealing pistons for movably sealing connection with the inner wall of the inner cavity are arranged on the outer side of the upper end of the inner compression rod 190, the inner sealing piston is movably sealed with the inner cavity, and the inner compression rod 190 and the support base 220 are also provided with oil cavities, which are in communication with the inner cavity and the inner part of the lower oil outlet 230.

[0034] A group of support soft plugs 200 for limiting the invasion stroke height of the inner compression rod 190 are arranged on the outer side of the middle position of the inner compression rod 190, the support soft plug 200 is connected and fixed with the inner compression rod 190, the support soft plug 200 is made of rubber material, and is sealingly and limitingly embedded with the lower end interface of the inner cavity.

[0035] The spring 170 and the lower end of the inner pressure rod 190 are provided with a set of embedding seats 210 for supporting them, the lower end of the embedding seats 210 is provided with a set of support bases 220 for externally connecting and fixing the shock-absorbing structure, the inner part of the lower end of the support base 220 and the inner part of the upper end of the support top base 140 are respectively provided with a set of connecting holes for connecting with the external structure.

[0036] The right side of the support base 220 is provided with a set of lower oil outlets 230 for discharging and replacing hydraulic oil, the outer sides of the lower oil outlets 230 and the upper oil injection port 100 are both provided with a set of screw caps 240, and the outer sides of the screw caps 240 are provided with outer anti-skid patterns for increasing the rotating friction force.

[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A shock absorber having a stroke limiting structure, comprising: The upper oil inlet (100), the supporting top seat (140), the spring (170) and the screw cap (240) are characterized in that: the lower end of the upper oil inlet (100) is provided with a group of pressure top seats (110) for sealing the upper end of the oil tank (130), the left side of the pressure top seat (110) is provided with a group of connecting bridges, the left side of the connecting bridge is provided with a group of supporting top seats (140) for connecting and fixing the damping cylinder (180) and the outer threaded shell (150) and limiting; The inside of the supporting top seat (140), the inside of the connecting bridge and the inside of the pressure top seat (110) are all provided with a group of inner oil paths for transmitting and flowing the pressure oil, the inside of the inner oil path is in communication with the inside of the oil tank (130) and the inside of the damping cylinder (180), the damping cylinder (180) is a kind of hydraulic damper, and the connecting bridge, the supporting top seat (140) and the pressure top seat (110) are an integral structure.

2. The shock absorber with stroke limiting structure according to claim 1, characterized in that: The lower end of the pressure top seat (110) is provided with a group of oil tanks (130) for storing pressure oil, and a group of pressure ring sleeves (120) are arranged between the oil tank (130) and the pressure top seat (110) for sealing the upper end of the oil tank (130).

3. The shock absorber with stroke limiting structure according to claim 2, characterized in that: The pressure ring sleeve (120) is made of rubber material and is connected by thread sealing and screwing with the upper end threaded groove of the oil tank (130) and the lower end of the pressure top seat (110), and the lower end of the supporting top seat (140) is provided with a group of damping cylinders (180) for slowly releasing the pressure of the supporting top seat (140).

4. The shock absorber with stroke limiting structure according to claim 3, characterized in that: The outer threaded shell (150) is coaxially arranged with the damping cylinder (180) in cross section, and the upper ends of the damping cylinder (180) and the outer threaded shell (150) are fixedly connected with the lower end of the pressure top seat (110).

5. The shock absorber with stroke limiting structure according to claim 4, characterized in that: The outer side of the outer threaded shell (150) is provided with a group of adjusting rings (160) for limiting the stroke height of the spring (170), the inner side of the adjusting ring (160) is provided with an inner thread, the adjusting ring (160) is threadedly connected with the outer threaded shell (150), and the lower end of the adjusting ring (160) is provided with a group of springs (170) for matching the damping cylinder (180) to release the degree of automobile driving damping.

6. The shock absorber with stroke limiting structure according to claim 5, characterized in that: The inside of the damping cylinder (180) is provided with an inner cavity for oil release, and the lower end of the inner cavity is provided with a group of inner pressure rods (190) for maintaining pressure invasion; The outer side of the upper end of the inner pressure rod (190) is provided with a group of inner sealing pistons for movably sealing connection with the inner wall of the inner cavity, the inner sealing piston is movably sealingly connected with the inner cavity, and the inside of the inner pressure rod (190) and the inside of the supporting bottom seat (220) are also provided with oil cavities and are in communication with the inside of the inner cavity and the inside of the lower oil outlet (230).

7. The shock absorber with stroke limiting structure according to claim 6, characterized in that: The inner pressure rod (190) is provided with a group of support soft plugs (200) outside the middle position for limiting the intrusion height of the inner pressure rod (190), the support soft plug (200) is connected and fixed with the inner pressure rod (190), the support soft plug (200) is made of rubber material and is sealed and limited to fit with the lower end interface of the inner cavity.

8. The shock absorber with stroke limiting structure according to claim 5, characterized in that: The lower end of the spring (170) and the inner pressure rod (190) is provided with a group of embedding seats (210) for supporting them, the lower end of the embedding seat (210) is provided with a group of support bases (220) for connecting and fixing the external shock absorbing structure, the lower end inside of the support base (220) and the upper end inside of the support top (140) are respectively provided with a group of connecting holes for connecting with the external structure.

9. The shock absorber with stroke limiting structure according to claim 8, characterized in that: The right side of the support base (220) is provided with a group of lower oil outlets (230) for discharging and replacing hydraulic oil, the outer side of the lower oil outlet (230) and the upper oil inlet (100) is respectively provided with a group of screw caps (240), the outer side of the screw cap (240) is provided with external anti-skid lines for increasing the rotating friction.

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