Automobile shock absorber with multi-stage shock absorption effect

Abstract

The utility model discloses an automobile shock absorber with a multi-stage shock absorption effect. The automobile damper with the multi-stage damping effect comprises an upper connector and a lower connector, a first telescopic rod is arranged at the bottom of the upper connector, a sleeve connected with the first telescopic rod in a sliding mode is arranged at the top of the lower connector, a first spring is connected to the outer side of the sleeve in a sleeving mode, and the first spring opens the upper connector and the lower connector; a sliding groove is formed in the middle of an inner cavity of the sleeve, a movable pressing plate is arranged in the sliding groove, a movable space is reserved between the top face of the movable pressing plate and the first telescopic rod, a second telescopic rod is arranged on the bottom face of the movable pressing plate, and the outer side of the second telescopic rod is sleeved with a second spring located in the sliding groove. The second spring supports the movable pressing plate at the top of the sliding groove, a movable strong magnet is arranged on the bottom face of the second telescopic rod, and a fixed strong magnet is arranged at the bottom of the sleeve. The problems that in the prior art, the damping effect is poor, and a vehicle-mounted person is prone to being uncomfortable are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing equipment technical field especially relates to a kind of automobile shock absorber with multistage damping effect. BACKGROUND

[0002] The China utility model patent with the name of "multistage buffer shock absorber" of the existing publication No.CN221033730U is described in the specification "when being impacted by external impact force, two fixed blocks 2 are extruded to internal shock absorber spring 1, the reset elasticity of the compression of shock absorber spring 1 is utilized, so that the impact force of outside is weakened, the damping effect is improved, when the sliding block 31 on extrusion rod 3 is extruded to elastic ring 5, elastic ring 5 can slide on fixed rod 51, so that two first springs 52 are extruded, the reset elasticity of first spring 52 is utilized, so that the impact force received by elastic ring 5 is quickly weakened, damping effect is achieved, and fixed block 2 drives auxiliary rod 6 to extrude second spring 62, so that positioning rod 61 slides inside positioning hole 42, so that second spring 62 is extruded, the reset elasticity of second spring 62 is utilized to achieve the effect of buffer damping". In combination with its disclosed drawings, elastic ring, first spring, second spring and shock absorber spring are synchronous deformation, and elastic ring, first spring and second spring are essentially only used to increase the deformation resistance of shock absorber spring, without achieving hierarchical effect, and if the deformation resistance of shock absorber spring is too large, shock absorber spring is difficult to be compressed, and high-frequency vibration (such as small jolt) in the driving process of vehicle is not easy to absorb, the damping effect is poor, and discomfort of vehicle-mounted personnel is easily caused. UTILITY MODEL CONTENT

[0003] The utility model aims at the deficiency existing in prior art, and provides a kind of automobile shock absorber with multistage damping effect, which has good damping effect and can improve the comfort of vehicle-mounted personnel.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model of a kind of automobile shock absorber with multistage damping effect is:

[0005] The utility model provides a car shock absorber with multistage damping effect, including upper connecting head and lower connecting head, the bottom of upper connecting head is provided with first telescopic link, the top of lower connecting head is provided with sleeve and is connected with first telescopic link slidingly, the outside of sleeve is sleeved with first spring, and first spring opens up upper connecting head and lower connecting head, so that sleeve and upper connecting head leave the activity space, the middle part of sleeve inner chamber is provided with sliding slot, and the top surface of movable pressing plate is provided with the activity space with first telescopic link, the bottom surface of movable pressing plate is provided with second telescopic link, the outside of second telescopic link is sleeved with second spring in sliding slot, and second spring supports movable pressing plate at the top of sliding slot, the bottom surface of second telescopic link is provided with movable strong magnet, and the bottom of sleeve is provided with fixed strong magnet, which is used for hindering the downward movement of second telescopic link.

[0006] Preferably, the sleeve comprises a first tube body in sliding connection with the first telescopic link, the upper side of the first tube body is provided with a bushing in sliding fit with the first telescopic link, the lower side of the first tube body is provided with a first recess, the lower part of the side wall of the first recess is connected with a second tube body allowing the second telescopic link to be inserted, the top surface of the second tube body, the side wall of the first recess and the bottom surface of the first recess constitute the sliding slot, the bottom surface of the second tube body is provided with a second recess, and the bottom of the second tube body is detachably connected with a cover plate, the cover plate is fixedly connected to the top surface of the lower connecting head, and the cover plate limits the fixed strong magnet in the second recess.

[0007] Preferably, the second telescopic link, the second tube body and the cover plate are made of non-magnetic material.

[0008] Preferably, the bottom of the first telescopic link is provided with a limiting boss matched with the bottom surface of the bushing.

[0009] Preferably, the bottom surface of the upper connecting head is provided with an upper spring limiting boss, the top surface of the lower connecting head is provided with a lower spring limiting boss, and the first spring is sleeved outside the upper and lower spring limiting bosses.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] During the driving of the vehicle, when encountering small vibration, the first spring works to absorb the vibration, when encountering medium vibration, the first telescopic link moves downward by a larger distance to push the movable pressing plate to compress the second spring, the second spring participates in absorbing the vibration, and when encountering large vibration, after the downward movement distance of the second telescopic link is increased, the movable strong magnet and the fixed strong magnet interact to participate in absorbing the vibration according to the principle that similar poles repel each other, thereby multistage damping can be realized according to the road conditions, the damping effect is good, and the comfort of the vehicle passengers is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the initial state diagram of the car shock absorber with multistage damping effect of the utility model.

[0013] Figure 2 is the structural diagram of the sleeve.

[0014] Figure 3 is the small vibration state diagram of the automobile shock absorber with multi-stage damping effect.

[0015] Figure 4 is the medium vibration state diagram of the automobile shock absorber with multi-stage damping effect.

[0016] Figure 5 is the large vibration state diagram of the automobile shock absorber with multi-stage damping effect.

[0017] Wherein, 1 upper connecting head, 11 upper spring limiting boss, 2 lower connecting head, 21 lower spring limiting boss, 3 first telescopic rod, 31 limiting boss, 4 sleeve, 41 first pipe body, 411 first recess, 42 bushing, 43 second pipe body, 431 second recess, 44 sliding groove, 45 cover plate, 5 first spring, 6 movable pressing plate, 61 second telescopic rod, 7 second spring, 8 movable strong magnet, 9 fixed strong magnet. DETAILED DESCRIPTION

[0018] The present application will be further illustrated by the following description and specific embodiments, and it should be understood that these embodiments are only used to illustrate the present application and not used to limit the scope of the present application, and after reading the present application, the modification of various equivalent forms of the present application by those skilled in the art falls within the scope defined by the appended claims of the present application.

[0019] As Figures 1-5The application discloses a car shock absorber with multi-stage damping effect, which comprises an upper connecting head 1 and a lower connecting head 2, the bottom surface of the upper connecting head is integrally formed with an upper spring limiting boss 11, the top surface of the lower connecting head is integrally formed with a lower spring limiting boss 21, the bottom center position of the upper spring limiting boss is threadedly connected with a first telescopic rod 3, the top center position of the lower spring limiting boss is provided with a sleeve 4, the sleeve comprises a first pipe body 41 which is slidably connected with the first telescopic rod, a bushing 42 which is slidably connected with the first telescopic rod is arranged on the upper side of the first pipe body, the bottom of the first telescopic rod is integrally formed with a limiting boss 31 which is matched with the bottom surface of the bushing, the outer side of the first pipe body is sleeved with a first spring 5, the upper end of the first spring is sleeved on the outer side of the upper spring limiting boss, the lower end of the first spring is sleeved on the outer side of the lower spring limiting boss, the upper and lower spring limiting bosses position the first spring and prevent the first spring from deviating, the first spring separates the upper and lower connecting heads, so that the first pipe body and the upper connecting head are provided with a moving space, and the limiting boss can abut against the bushing, so that the rigidity of the connection between the upper and lower connecting heads is improved, thereby facilitating vehicle loading, the lower side of the first pipe body is provided with a first recess 411, the lower part of the side wall of the first recess is threadedly connected with a second pipe body 43, the top surface of the second pipe body, the side wall of the first recess and the bottom surface of the first recess form a sliding groove 44, a movable pressing plate 6 is arranged in the sliding groove, the top surface of the movable pressing plate is provided with a moving space relative to the first telescopic rod, the bottom surface of the movable pressing plate is provided with a second telescopic rod 61 which can be inserted into the second pipe body, the outer side of the second telescopic rod is sleeved with a second spring 7 which is arranged in the sliding groove and supports the movable pressing plate on the top of the sliding groove, the bottom surface of the second telescopic rod is provided with a movable strong magnet 8, the bottom surface of the second pipe body is provided with a second recess 431, a fixed strong magnet 9 is arranged in the second recess, the bottom of the second pipe body is detachably connected with a cover plate 45, the cover plate is fixed to the top surface of the lower spring limiting boss, the cover plate limits the fixed strong magnet in the second recess, the top end of the fixed strong magnet has the same polarity as the bottom end of the movable strong magnet, and is used for impeding the downward movement of the second telescopic rod, the second telescopic rod, the second pipe body and the cover plate are all made of aluminum alloy, so that the iron parts are prevented from being magnetized.

[0020] The specific working process and principle of the utility model are: in the process of vehicle driving, when encountering small vibration, the upper connecting head moves downward to compress the first spring, and the first spring works to absorb vibration; when encountering medium vibration, the upper connecting head drives the first telescopic rod to move downward with increased distance, the first telescopic rod pushes the movable pressing plate to compress the second spring, the second spring participates in absorbing vibration, and the deformation amount of the first spring is reduced; when encountering large vibration, the upper connecting head drives the first telescopic rod to move downward with further increased distance, and simultaneously drives the second telescopic rod to move downward with increased distance, when the movable strong magnet approaches the fixed strong magnet, repulsion is generated due to same polarity, and the downward movement of the second telescopic rod and the upper connecting head is hindered, that is, the deformation amount of the first spring can be reduced. In the process of vibration increase, the utility model gradually cooperates the first spring to absorb vibration through the elastic force of the second spring and the interaction force between the movable strong magnet and the fixed strong magnet, thereby multi-level shock absorption can be realized according to road conditions, the shock absorption effect is good, and the comfort of vehicle-mounted personnel in the vehicle is improved.

Claims

1. A shock absorber for a vehicle having a multi-stage damping effect, characterized by: The upper connecting head is provided with a first telescopic rod at the bottom, the top of the lower connecting head is provided with a sleeve in sliding connection with the first telescopic rod, the outer side of the sleeve is sleeved with a first spring, the first spring separates the upper and lower connecting heads to leave a moving space between the sleeve and the upper connecting head, a sliding slot is formed in the middle of the inner cavity of the sleeve, a movable pressing plate is arranged in the sliding slot, a moving space is left between the top surface of the movable pressing plate and the first telescopic rod, the bottom surface of the movable pressing plate is provided with a second telescopic rod, the outer side of the second telescopic rod is sleeved with a second spring in the sliding slot, the second spring supports the movable pressing plate at the top of the sliding slot, the bottom surface of the second telescopic rod is provided with a movable strong magnet, the bottom of the sleeve is provided with a fixed strong magnet for preventing the downward movement of the second telescopic rod.

2. The automobile shock absorber having a multi-stage damping effect according to claim 1, characterized by: The sleeve comprises a first pipe body in sliding connection with the first telescopic rod, the upper side of the first pipe body is provided with a bushing in sliding fit with the first telescopic rod, the lower side of the first pipe body is provided with a first recess, the lower part of the side wall of the first recess is connected with a second pipe body allowing the insertion of the second telescopic rod, the top surface of the second pipe body, the side wall of the first recess and the bottom surface of the first recess constitute a sliding slot, the bottom surface of the second pipe body is provided with a second recess, the bottom of the second pipe body is detachably connected with a cover plate, the cover plate is fixedly connected to the top surface of the lower connecting head, and the cover plate limits the fixed strong magnet in the second recess.

3. The automobile shock absorber having a multi-stage damping effect according to claim 2, characterized by: The second telescopic rod, the second pipe body and the cover plate are made of non-magnetic material.

4. The automobile shock absorber having a multi-stage damping effect according to claim 2, characterized by: The bottom of the first telescopic rod is provided with a limiting boss matched with the bottom surface of the bushing.

5. The automobile shock absorber having a multi-stage damping effect according to claim 1, characterized by: The bottom surface of the upper connecting head is provided with an upper spring limiting boss, the top surface of the lower connecting head is provided with a lower spring limiting boss, and the first spring is sleeved outside the upper and lower spring limiting bosses.

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