CN212225863U - Segmented adjustable shock absorber - Google Patents

Abstract

The utility model discloses a bumper shock absorber with adjustable based on sectional type has solved the problem that current bumper shock absorber can not fine adaptation vehicle use travelling comfort, solves the technical measure that this technical problem taken: the utility model provides a bumper shock absorber with adjustable based on sectional type, includes the hydro-cylinder, pegs graft the piston rod in the hydro-cylinder, the outer tip hookup of piston rod has lower rings, the outer tip hookup of hydro-cylinder has last rings, has cup jointed the spring in the periphery of hydro-cylinder and piston rod, its characterized in that, the spring is the sectional type structure, is equipped with a pair of regulating wheel between the tip of the spring section that is close to mutually, and the regulating wheel hookup is on helicitic texture, and a regulating wheel is inconsistent with a tip of spring section. The precompression of the spring section is adjusted by rotating the adjusting wheel, so that the rigidity of the shock absorber can be adjusted, the rigidity change caused by the use or length change of the shock absorber can be compensated, and the rigidity of the shock absorber is kept at a proper value.

Description

Segmented adjustable shock absorber

Technical Field

The utility model relates to a bumper shock absorber especially relates to a bumper shock absorber for vehicle with adjustable.

Background

In the present trade, on the vehicle shock attenuation that uses in electric motor car or motorcycle field, because its service environment is more complicated, not only the instrument of riding instead of walk is more likely to be a cargo carrying tool, and regional special road conditions in addition, the motorcycle type of conventional single state hardly satisfies all customers' demand, and local area customer customization motorcycle type can increase the burden on the development cost for vehicle manufacturer again. In order to solve the problems, the industry uses the shock absorption with adjustable force value, and the shock absorption can be adjusted to a comfortable state within a certain range according to the use requirement of a client. However, the adjustable shock absorber sold on the market can only be adjusted on the set gear, the adjustable range is relatively limited, and the operation is difficult (special auxiliary tools are needed). And the damping device is influenced by the conditions of the self rigidity of the spring, the yield strength and the like, and simultaneously meets the requirements of comfort and large force value within the controllable damping stroke range of the whole vehicle structure, which is difficult.

Chinese patent document (publication No. CN 108458036A) discloses a shock absorber with adjustable damping and inertia-volume coefficients. The invention relates to a shock absorber which comprises a flywheel chamber, a stroke chamber, a ball screw and a nut; the upper shaft end of the ball screw is connected with a flywheel positioned in the flywheel chamber, and the lower shaft end of the ball screw is connected with a blade wheel positioned in the stroke chamber; the nut is fixed at the upper end of the stroke chamber and is in threaded connection with the ball screw; magnetorheological fluid is filled in the lower part in the stroke chamber cavity; and an electromagnetic coil is wound on the shell of the stroke chamber corresponding to the magnetorheological fluid. The shock absorber provided by the invention can adjust the damping coefficient and the inertia-capacitance coefficient at the same time, can realize that the inertia-capacitance coefficient changes along with the change of external input, has the advantages of high sensitivity, small volume, simple structure, no time lag phenomenon and the like, and improves the adaptability of the shock absorber to the working environment.

The shock absorber is hard to adjust, cannot be finely adjusted, and cannot well meet the requirements of comfort and large force value.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who needs the solution: the utility model provides a bumper shock absorber based on sectional type is adjustable, this bumper shock absorber application scope is wide, can satisfy the use travelling comfort requirement of bumper shock absorber well.

For solving the technical problem, the technical scheme of the utility model: the utility model provides a bumper shock absorber with adjustable based on sectional type, includes the hydro-cylinder, pegs graft the piston rod in the hydro-cylinder, the outer tip hookup of piston rod has lower rings, the outer tip hookup of hydro-cylinder has last rings, has cup jointed the spring in the periphery of hydro-cylinder and piston rod, its characterized in that, the spring is the sectional type structure, is equipped with a pair of regulating wheel between the tip of the spring section that is close to mutually, and the regulating wheel hookup is on helicitic texture, and a regulating wheel is inconsistent with a tip of spring section.

At least two spring sections on one shock absorber can adjust the pre-compression of the spring sections by rotating the adjusting wheel when the elastic force of the spring changes or the length of the shock absorber changes. The elastic structure may be formed on the outer circumferential surface of the cylinder or on a coupling sleeve described below.

Furthermore, a coupling sleeve is sleeved on the periphery of the oil cylinder, and the thread structure is formed on the peripheral surface of the coupling sleeve. The coupling sleeve can be sleeved on the peripheral surface of the oil cylinder in a floating manner, namely the coupling sleeve can axially displace on the peripheral surface of the oil cylinder. The coupling sleeve can also be axially fixed on the outer peripheral surface of the oil cylinder.

Furthermore, a convex outward convex ring is formed in the middle of the connecting sleeve, and the two adjusting wheels are respectively arranged on two opposite sides of the outward convex ring. The two spring sections can be adjusted respectively, so that the adjustment is convenient.

Furthermore, a lower support table which is used for being abutted against the end part of the spring section is connected to the lower lifting ring, and the lower support table is connected to the outer end part of the piston rod in a threaded mode. The lower support platform can rotate at the end of the piston rod to change the overall length of the shock absorber, and the requirements of vehicles on different lengths of the shock absorber can be well met.

Furthermore, a clamping nut is connected to the piston rod in a threaded manner and is used for abutting against the inner end face of the lower support table. The clamping nut is abutted and tightened against the lower supporting platform, so that the connection stability between the lower supporting platform and the piston rod is good, and the length dimension of the shock absorber can be well kept once being adjusted and determined.

Compared with the prior art, the utility model discloses the beneficial effect who has: the springs on the shock absorber are arranged in sections, and two adjusting wheels are arranged between two adjacent spring sections and used for adjusting the pre-compression of the supported spring sections, so that the rigidity of the springs can be changed. When the length of the shock absorber is changed due to the fact that the shock absorber is suitable for different use occasions, the rigidity of the shock absorber can be enabled to be in a value required by design through adjustment of the adjusting wheels, and the requirement for using comfort of a vehicle can be well met. When the rigidity of the shock absorber changes after the shock absorber is used for a long time, the rigidity of the spring section can be corrected. Through the connection of the adjusting wheel and the threaded structure, the displacement of the adjusting wheel on the threaded structure can be accurately controlled, and fine adjustment of pre-compression of the spring section is facilitated.

Drawings

FIG. 1 is a block diagram of a segmented adjustable shock absorber in its normal state.

Fig. 2 is a view showing the structure of fig. 1 after the adjustment wheel is rotated.

Fig. 3 is a structural view after the lower hanging ring is adjusted on the basis of fig. 1.

Fig. 4 is a structural view of the lower suspension ring and the lower support base coupled to the piston rod.

Fig. 5 is a structural view of the coupling sleeve.

Detailed Description

The sectional type adjustable shock absorber is applied to an electric vehicle or a motorcycle and is used for providing shock absorption support for the vehicle when the vehicle moves forwards under load.

The structure of the shock absorber comprises a cylindrical oil cylinder 5, a piston rod 8 is inserted in the oil cylinder 5, and the outer end of the piston rod 8 extends out of the outer side of the oil cylinder 5. The outer end part of the piston rod 8 is connected with a lower lifting ring 7, the outer end part of the oil cylinder 5 is connected with an upper lifting ring 1, and in the using process, the upper lifting ring 1 and the lower lifting ring 7 are respectively connected to two parts of a vehicle which need to be supported. Springs are sleeved on the peripheries of the oil cylinder 5 and the piston rod 8, the springs are of sectional structures, and two spring sections 2 are arranged on one shock absorber. A pair of adjusting wheels 3 are arranged between the end parts of the two spring sections 2 close to each other, internal threads are formed on the inner circumferential surfaces of the adjusting wheels 3, the adjusting wheels 3 are connected to the external thread structures in a threaded mode, and the outer end face of one adjusting wheel 3 is abutted against one end part of one spring section 2 to support the spring section 2.

The periphery of the oil cylinder 5 is sleeved with a connecting sleeve 9, the connecting sleeve 9 is sleeved with the oil cylinder 5 in a clearance mode, and the connecting sleeve 9 can have certain axial displacement on the periphery of the oil cylinder 5. Referring to fig. 4, a convex outward protruding ring 4 is formed at the middle position of the connecting sleeve 9, external threads are respectively formed on the outer circumferential surface of the connecting sleeve 9 at the two opposite sides of the outward protruding ring 4, and two adjusting wheels 3 are respectively arranged at the two opposite sides of the outward protruding ring 4 and are respectively in threaded connection with the external threads.

The lower lifting ring 7 is connected with a lower supporting platform 6 which is used for abutting against the end part of the spring section 2, the lower supporting platform 6 is in a truncated cone shape, and the spring section 2 abuts against the end face of the large head of the lower supporting platform 6. Referring to fig. 5, the lower support table 6 is threadedly coupled to an outer end portion of the piston rod 8, and by rotating the lower suspension ring 7, an axial position of the lower support table 6 on the piston rod 8 can be changed, thereby changing an axial length of the shock absorber. In order to stabilize the position of the shock absorber after the axial length thereof is changed, a union nut 10 is threadedly coupled to the piston rod 8, and the union nut 10 is adapted to abut against and tighten the inner end surface of the lower support table 6.

In fig. 1, two regulating screw wheels 3 are abutted against an outward convex ring 4. In fig. 2, the two adjusting wheels 3 are respectively adjusted towards the outer side, a gap is formed between each adjusting wheel 3 and the outward convex ring 4, and the two spring sections 2 are respectively compressed, so that the rigidity value of the shock absorber can be improved. In fig. 3, after the lower suspension ring 7 is rotated, the damper is shortened, and if the rigidity of the damper is kept unchanged, both adjusting wheels 3 can be adjusted towards the direction of the outward convex ring 4 on the basis of fig. 2, so that the compression amount of the spring segment 2 is kept consistent in practice.

Claims (5)

1. The utility model provides a bumper shock absorber with adjustable based on sectional type, includes the hydro-cylinder, pegs graft the piston rod in the hydro-cylinder, the outer tip hookup of piston rod has lower rings, the outer tip hookup of hydro-cylinder has last rings, has cup jointed the spring in the periphery of hydro-cylinder and piston rod, its characterized in that, the spring is the sectional type structure, is equipped with a pair of regulating wheel between the tip of the spring section that is close to mutually, and the regulating wheel hookup is on helicitic texture, and a regulating wheel is inconsistent with a tip of spring section.

2. The shock absorber according to claim 1, wherein a coupling sleeve is fitted over an outer circumference of the cylinder, and the thread structure is formed on an outer circumferential surface of the coupling sleeve.

3. The damper according to claim 2, wherein a convex outward-projecting ring is formed at a middle position of the coupling sleeve, and the two regulating wheels are arranged on opposite sides of the outward-projecting ring.

4. The shock absorber according to claim 1, 2 or 3, wherein a lower support table is attached to the lower suspension ring for abutting against the end of the spring section, the lower support table being threadedly attached to the outer end of the piston rod.

5. A shock absorber according to claim 4 wherein a draw nut is threadedly coupled to the piston rod and adapted to abut against an inner end surface of the lower support table.

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