CN211715624U

CN211715624U - High-efficient bumper shock absorber for car

Info

Publication number: CN211715624U
Application number: CN201922259133.1U
Authority: CN
Inventors: 王维芳; 赵凤莉; 薛耀光; 薛建军; 薛耀宗
Original assignee: Henan Wuyi Machinery Co ltd
Current assignee: Henan Wuyi Machinery Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-10-20
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a high-efficient bumper shock absorber for car, including protective housing and hydro-cylinder, the protective housing suit is on the hydro-cylinder, and the inner wall of hydro-cylinder passes through connecting block fixedly connected with second piston rod, and the outside cover of second piston rod is equipped with second damping spring, and one side fixedly connected with piston of second piston rod is kept away from to the sleeve, and telescopic one side and first piston rod fixed connection are kept away from to the piston, and the cover is equipped with first damping spring on the first piston rod, and slider sliding connection has the installation piece in the outside of protective housing. The utility model discloses the sleeve that sets up is when the piston motion, along with the piston is the up-and-down motion in the hydro-cylinder, the sleeve extrudees second damping spring with the position of second damping spring contact, makes second damping spring take place deformation, and second damping spring receives behind the certain pressure simultaneously, can produce thrust to the piston when recovering to original state, reduces the stroke that the piston moved in the hydro-cylinder, increases piston reciprocating motion's number of times, reduces the fluctuation of car, improves the shock attenuation effect.

Description

High-efficient bumper shock absorber for car

Technical Field

The utility model relates to a bumper shock absorber technical field specifically is a high-efficient bumper shock absorber for car.

Background

Automobile shock absorber's effect is experiencing direct relation to user's driving, the bumper shock absorber divide into fluid pressure type and inflatable, the majority of use in the automotive suspension system is hydraulic shock absorber, when hydraulic shock absorber passes through piston reciprocating motion in the cylinder of bumper shock absorber, pass through narrow hole flow to another inner chamber on the piston with fluid from the inner chamber, friction between fluid and piston and the cylinder body forms damping force, it makes the energy to consume vibrations, reach the shock attenuation purpose, present current hydraulic shock absorber exists when using, the shock attenuation effect is relatively poor, do not have multistage absorbing effect, the spring reciprocating motion's on the bumper shock absorber distance is longer when jolting of car, influence the ride comfort that the car went, therefore it is necessary to improve prior art, in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high-efficient bumper shock absorber for car has solved the relatively poor and longer problem of spring reciprocating motion's of car on the bumper shock absorber when jolting of shock attenuation effect.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-efficient bumper shock absorber for car, includes protective housing and hydro-cylinder, the protective housing suit is on the hydro-cylinder, the inner wall of hydro-cylinder passes through connecting block fixedly connected with second piston rod, the outside cover of second piston rod is equipped with second damping spring, and the second piston rod keeps away from the one end and the sleeve plug-in connection of connecting block, one side fixedly connected with piston that the second piston rod was kept away from to the sleeve, telescopic one side and first piston rod fixed connection are kept away from to the piston, the cover is equipped with first damping spring on the first piston rod, there is the installation piece the outside of protective housing through slider sliding connection, be provided with the filter screen between the installation piece, the outside of protective housing is connected with upper bracket and unders.

Preferably, the number of the pistons is two, oil holes are formed in the pistons, the upper portions of the pistons and the lower portions of the pistons are communicated through the oil holes, the oil holes are evenly distributed in the pistons, and the pistons are fixedly connected with two ends of the first piston rod respectively.

Preferably, the clamping blocks are arranged in two numbers, the clamping blocks are fixedly connected with the protective shell, clamping grooves are formed in the positions, corresponding to the upper support and the lower support, of the clamping blocks, and the clamping grooves are matched with the clamping blocks.

Preferably, the connecting block, the second piston rod and the second damping spring are arranged in two, the connecting block, the second piston rod and the second damping spring are arranged in one-to-one correspondence, and the second piston rod is connected with the sleeve in a sliding mode.

Preferably, the number of the mounting blocks is two, the mounting blocks are fixedly connected with the sliding block, and the inner diameter of each mounting block is equal to the outer diameter of the protective shell.

Preferably, the slider is provided with eight, the slider all is the inner wall of annular array distribution at the installation piece, vertical spout has all been seted up to the position department that the slider corresponds on the protective housing, and spout and slider mutually support.

Preferably, the both ends of first piston rod all run through the inside that protective housing and hydro-cylinder extended to the hydro-cylinder, the diameter of first piston rod is less than first damping spring's internal diameter, first damping spring's both ends all laminate with protective housing surface.

(III) advantageous effects

The utility model provides a high-efficient bumper shock absorber for car possesses following beneficial effect:

when the sleeve of the utility model moves, the contact part of the sleeve and the second damping spring extrudes the second damping spring along with the up-and-down movement of the piston in the oil cylinder to promote the deformation of the second damping spring, meanwhile, after the second damping spring is under a certain pressure, thrust can be generated on the piston when the second damping spring is restored to the original state, the stroke of the piston in the oil cylinder is reduced, the reciprocating motion frequency of the piston is increased, the fluctuation of an automobile is reduced, the damping effect is improved, the second damping spring can be protected by the second piston rod, the second damping spring is prevented from being deformed in the horizontal direction, the using effect of the second damping spring is influenced, the filter screen is arranged to block dust generated in the running process of the automobile outside the first damping spring, the dust is prevented from contacting the first piston rod and entering the oil cylinder through the first piston rod, the service life of the shock absorber is influenced, and the using effect of oil is promoted to be reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of point A of FIG. 1 according to the present invention;

fig. 3 is an enlarged schematic view of the mounting block of fig. 1 according to the present invention.

The reference numbers in the figures are: 1. an upper support; 2. a protective shell; 3. mounting blocks; 4. a filter screen; 5. a first damping spring; 6. a piston; 7. an oil hole; 8. a first piston rod; 9. an oil cylinder; 10. a clamping block; 11. a lower support; 12. connecting blocks; 13. a second piston rod; 14. a second damping spring; 15. a sleeve; 16. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention is shown; a high-efficiency shock absorber for an automobile comprises a protective shell 2 and an oil cylinder 9, wherein the protective shell 2 is sleeved on the oil cylinder 9, the oil cylinder 9 is reinforced, meanwhile, the arrangement of a vertical sliding groove is convenient to be connected with an installation block 3, a second piston rod 13 is fixedly connected to the inner wall of the oil cylinder 9 through a connecting block 12, a second shock absorption spring 14 is protected, the horizontal deformation is avoided when the second shock absorption spring 14 is stressed, the using effect of the shock absorber is influenced, the second shock absorption spring 14 is sleeved outside the second piston rod 13 and deforms under the extrusion of the connecting block 12 and a sleeve 15, the pressure is converted into elastic potential energy, the shock absorption effect of the shock absorber is improved, one end, far away from the connecting block 12, of the second piston rod 13 is connected with the sleeve 15 in an inserting mode, the sleeve fixes one end of the second piston rod 13, the arrangement of the second shock absorption spring 14 is convenient, meanwhile, the connection between a piston 6 and the second, the shock absorption is facilitated, the piston 6 is fixedly connected to one side, away from the second piston rod 13, of the sleeve 15, the piston 6 moves in the oil cylinder under stress to extrude oil, the oil is enabled to flow in the oil cylinder 9 through the oil hole 7, one side, away from the sleeve 15, of the piston 6 is fixedly connected with the first piston rod 8, the oil cylinder 9 is connected into a whole through the first piston rod 8, the shock absorber is conveniently installed, the first piston rod 8 is sleeved with the first shock absorption spring 5, the first shock absorption spring 5 deforms under stress to reduce the shock of a vehicle during running, the driving experience of a driver is improved, the mounting block 3 is connected to the outer portion of the protective shell 2 in a sliding mode through the sliding block 16, the mounting block 3 facilitates the arrangement of the filter screen 4, meanwhile, a gap cannot exist between the filter screen 4 and the protective shell 2 during up-down movement, dust is prevented from entering, the filter screen 4 is, avoid the dust to bond the surface of first piston rod 8, influence the life of bumper shock absorber, the outside of protective housing 2 rotates through fixture block 10 respectively and is connected with upper bracket 1 and undersetting 11, and the connection of bumper shock absorber and frame is convenient for to upper bracket 1, and undersetting 11 is convenient for the bumper shock absorber and is connected of axle.

Further, piston 6 is provided with two, and has all seted up oilhole 7 on the piston 6, and oilhole 7 communicates piston 6 upper portion and piston 6 lower part each other, and oilhole 7 evenly distributed is on piston 6, and piston 6 respectively with the both ends fixed connection of first piston rod 8, sets up the production that a plurality of pistons 6 increased the damping force, has improved the shock attenuation effect.

Further, fixture block 10 is provided with two, and fixture block 10 all with 2 fixed connection of protective housing, the draw-in groove has all been seted up to the position department on fixture block 10 corresponds upper bracket 1 and undersetting 11, and the draw-in groove all mutually supports with fixture block 10, and the setting up of fixture block 10 makes the connection of upper bracket 1 and undersetting 11 and frame and axle more convenient, the quick installation of the reduction gear of being convenient for.

Further, connecting block 12, second piston rod 13 and second damping spring 14 all are provided with two, and connecting block 12, second piston rod 13 and the corresponding setting of second damping spring 14 homogeneous, second piston rod 13 all with sleeve 15 sliding connection, with the setting of piston 6 one-to-one, make the stroke of piston 6 all restricted, reduce the displacement volume that the car took place when rocking from top to bottom, improve the shock attenuation effect.

Further, installation piece 3 is provided with two, and installation piece 3 all equals with slider 16 fixed connection, and the internal diameter of installation piece 3 and the external diameter of protective housing 2, and the setting is hugged closely to remaining protective housing 2 of installation piece 3, is convenient for to the protection of dust, and when the car rocked, installation piece 3 slided from top to bottom on protective housing 2 through slider 16.

Further, slider 16 is provided with eight, and slider 16 all is the inner wall of annular array distribution at installation piece 3, and slider 16 corresponds the position department on the protective housing 2 and has all seted up vertical spout, and spout and slider 16 mutually support, and the spout is convenient for the sliding connection between protective housing 2 and the installation piece 3, makes the automobile can not receive the damage in the connection between protective housing 2 and the installation piece 3 when rocking.

Further, the both ends of first piston rod 8 all run through the inside that protective housing 2 and hydro-cylinder 9 extended to hydro-cylinder 9, and the diameter of first piston rod 8 is less than first damping spring 5's internal diameter, and first damping spring 5's both ends all laminate with protective housing 2 surfaces, and first piston rod 8 runs through the position department of protective housing 2 and all is provided with sealed the pad, prevents staying of the inside fluid of hydro-cylinder 9, influences the result of use and the life of bumper shock absorber.

The working principle is as follows: when the automobile bumps, the frame and the axle exert opposite acting force on the shock absorber, so that the protective shell 2 on the upper portion pushes the first damping spring 5 downwards, the protective shell 2 on the lower portion pushes the first damping spring 5 upwards, meanwhile, the piston 6 slides upwards and downwards in the oil cylinder 9 respectively to extrude oil in the oil cylinder 9, when the oil is extruded by the piston 6, the oil hole 7 formed in the piston 6 flows to the other side of the piston 6, meanwhile, the sleeve 15 moves inside the oil cylinder 9 due to the force between the oil cylinder 9 and the piston 6, the second damping spring 14 is extruded, when the deformation amount of the second damping spring 14 reaches the maximum, the piston 6 is pushed to gradually recover the original position, the oil flows through the oil hole 7 again, and the first damping spring 5 recovers the original state after being deformed for multiple times to achieve the damping effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient bumper shock absorber for car, includes protective housing (2) and hydro-cylinder (9), its characterized in that: the protective shell (2) is sleeved on the oil cylinder (9), the inner wall of the oil cylinder (9) is fixedly connected with a second piston rod (13) through a connecting block (12), a second damping spring (14) is sleeved outside the second piston rod (13), and one end of the second piston rod (13) far away from the connecting block (12) is connected with the sleeve (15) in an inserting way, one side of the sleeve (15) far away from the second piston rod (13) is fixedly connected with a piston (6), one side of the piston (6) far away from the sleeve (15) is fixedly connected with the first piston rod (8), the first piston rod (8) is sleeved with a first damping spring (5), the outer part of the protective shell (2) is connected with a mounting block (3) in a sliding way through a sliding block (16), a filter screen (4) is arranged between the mounting blocks (3), and the outer side of the protective shell (2) is rotatably connected with an upper support (1) and a lower support (11) through a clamping block (10) respectively.

2. The high-efficiency shock absorber for the automobile as claimed in claim 1, wherein: the two pistons (6) are arranged, oil holes (7) are formed in the pistons (6), the upper portions of the pistons (6) and the lower portions of the pistons (6) are communicated with each other through the oil holes (7), the oil holes (7) are evenly distributed in the pistons (6), and the pistons (6) are fixedly connected with the two ends of the first piston rods (8) respectively.

3. The high-efficiency shock absorber for the automobile as claimed in claim 1, wherein: the clamping blocks (10) are arranged in two numbers, the clamping blocks (10) are fixedly connected with the protective shell (2), clamping grooves are formed in the positions, corresponding to the upper support (1) and the lower support (11), of the clamping blocks (10), and the clamping grooves are matched with the clamping blocks (10) mutually.

4. The high-efficiency shock absorber for the automobile as claimed in claim 1, wherein: connecting block (12), second piston rod (13) and second damping spring (14) all are provided with two, connecting block (12), second piston rod (13) and second damping spring (14) homogeneous one-to-one set up, second piston rod (13) all with sleeve (15) sliding connection.

5. The high-efficiency shock absorber for the automobile as claimed in claim 1, wherein: the mounting block (3) is provided with two, the mounting block (3) is fixedly connected with the sliding block (16), and the inner diameter of the mounting block (3) is equal to the outer diameter of the protective shell (2).

6. The high-efficiency shock absorber for the automobile as claimed in claim 1, wherein: slider (16) are provided with eight, slider (16) all are the inner wall of annular array distribution at installation piece (3), vertical spout has all been seted up to slider (16) position department on corresponding protective housing (2), and spout and slider (16) are mutually supported.

7. The high-efficiency shock absorber for the automobile as claimed in claim 1, wherein: the both ends of first piston rod (8) all run through the inside that protective housing (2) and hydro-cylinder (9) extended to hydro-cylinder (9), the diameter of first piston rod (8) is less than the internal diameter of first damping spring (5), the both ends of first damping spring (5) all laminate with protective housing (2) surface.