CN217814733U

CN217814733U - Suspension shock absorber piston rod

Info

Publication number: CN217814733U
Application number: CN202222278653.9U
Authority: CN
Inventors: 梁燕军; 王姝; 周宏宇; 潘峰; 卢友军; 梁军起
Original assignee: Shanghai Siruijie Architectural Technology Co ltd
Current assignee: Shanghai Siruijie Architectural Technology Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-11-15
Anticipated expiration: 2032-08-29

Abstract

The utility model provides a suspension shock absorber piston rod, including cylinder, oil blanket, sealed cowling, buffer spring, connecting plate and piston rod structure, piston rod structure includes piston rod body and piston structure, piston structure includes piston body, ring channel, circle shape rubber pad and spacing collar structure, spacing collar structure includes spacing piece structure one, spacing piece structure two and bolt, spacing piece structure includes arc piece, connection limit, spacing groove, cylindricality lead to groove, screw hole and stopper, the arc piece outer lane is equipped with connect the limit, arc piece one end is equipped with the spacing groove, the cylindricality leads to groove one end through connection limit and arc piece outer lane and is connected with spacing groove one side, screw hole one end is kept away from cylindricality and is led to groove one side by the spacing groove and stretch into the inside setting of arc piece, spacing piece structure one and spacing piece structure two mutually insert the setting, two bolt one end all passes cylindricality lead to groove and stopper block screw and twist and close inside the screw hole.

Description

Suspension shock absorber piston rod

Technical Field

The utility model relates to a piston rod technical field, in particular to suspension bumper shock absorber piston rod.

Background

The suspension vibration damper is characterized in that the vibration damper is installed in parallel with the elastic element in the suspension system for damping vibration, most of the vibration dampers are hydraulic vibration dampers in the suspension system of the automobile, the working principle of the suspension vibration damper is that when the frame and the axle vibrate and move relatively, a piston in each vibration damper moves up and down, oil in a cavity of each vibration damper repeatedly flows into the other cavity from one cavity through different pores, a piston rod in each suspension vibration damper is one of important components of the suspension vibration damper and is a connecting component for supporting the piston to do work, most of the suspension vibration dampers are applied to oil cylinders and air cylinder movement execution components and are moving components with frequent movement and high technical requirements, and the piston in the piston rod and the component in the piston rod and the piston in the cylinder are easy to wear due to long-time reciprocating movement of the piston in the piston rod and the component in the cylinder.

For example, chinese patent publication No. is a suspension bumper shock absorber piston rod that provides in CN210290334U, it is serious to have solved wearing and tearing between the piston rod body and the cylinder, the surface of having avoided the piston rod damages easily, and then leads to the damage of bumper shock absorber, and then has shortened the problem of the life of bumper shock absorber, however, the piston of piston rod bottom is because of the material is rubber material, it is worn and torn to change than the piston rod material relatively, and need change the piston whole after wearing and tearing, the maintenance cost is higher, this utility model discloses can not solve this problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a purpose is in order to solve the shortcoming that exists among the prior art, and the suspension bumper shock absorber piston rod that proposes is equipped with a plurality of ring shape rubber pads outside the piston, supports to close at the cylinder inner wall through a plurality of ring shape rubber pads, replaces piston avris to close and reciprocates at the cylinder inner wall, when ring shape rubber pad wearing and tearing, only needs to change the ring shape rubber pad of one of them or a plurality of wearing and tearing, need not change the piston body, reduces piston maintenance cost among the piston rod structure.

The utility model adopts the technical proposal that:

a suspension shock absorber piston rod comprises a cylinder barrel, an oil seal, a sealing cover, a buffer spring, a connecting plate and a piston rod structure, wherein the piston rod structure comprises a piston rod body and a piston structure, the piston structure comprises a piston body, an annular groove, a ring-shaped rubber pad and a limiting ring structure, the limiting ring structure comprises a first limiting sheet structure, a second limiting sheet structure and a bolt, the limiting sheet structure comprises an arc-shaped sheet, a connecting edge, a limiting groove, a cylindrical through groove, a threaded hole and a limiting block, the connecting edge is arranged on the outer ring of the arc-shaped sheet, the limiting groove is arranged at one end of the arc-shaped sheet, one end of the cylindrical through groove penetrates through the connecting edge and the outer ring of the arc-shaped sheet to be connected with one side of the limiting groove, one end of the threaded hole extends into the arc-shaped sheet from one side of the limiting groove away from the cylindrical through groove, one end of the limiting block is fixedly connected with one end of the arc-shaped sheet away from the limiting groove, the first limiting sheet structure and the second limiting sheet structure are mutually inserted, one ends of the two bolts penetrate through the cylindrical through the through groove and the limiting block body and are screwed in the threaded hole, a plurality of the annular grooves are arranged in the same distance from the outer ring-shaped groove,

the ring-shaped rubber pads and the limiting ring structures are arranged in the plurality of annular grooves in a mutually penetrating mode, the bottom end of the piston rod body penetrates through the center of a piston body in the piston structure, the bottom end of the piston rod body is used for fixing the piston structure through nuts, the piston rod structure is movably placed inside the cylinder, the top end of the piston rod body movably extends out of the top end of the cylinder, the connecting plates are movably sleeved on the piston rod body, the buffer spring is sleeved on the piston rod body, the upper end and the lower end of the buffer spring are abutted to the two connecting plates, the oil seal is sleeved at the intersection of the piston rod body and the top end of the cylinder, the center position of the seal cover is movably sleeved on the piston rod body, and the inner side of the outer ring of the cover body is sleeved on the top end of the cylinder.

As an improvement, two sides of the outer ring of the connecting edge are respectively provided with a chamfer surface.

As an improvement, the first limiting piece structure and the second limiting piece structure are the same in structure.

As an improvement, the limiting grooves are matched with the limiting blocks, and the two limiting grooves and the two limiting blocks in the first limiting sheet structure and the second limiting sheet structure are mutually inserted together.

As an improvement, the ring-shaped rubber pad and the arc-shaped sheet are matched with the annular groove.

As an improvement, the inner ring of the ring-shaped rubber gasket is sleeved in the annular groove, and the two arc-shaped sheets in the limiting ring structure are clamped in the annular groove.

As an improvement, a plurality of outer rings of the ring-shaped rubber pads in the piston rod structure are movably abutted against the inner side of the cylinder barrel.

The beneficial effects of the utility model are that:

the utility model relates to a suspension shock absorber piston rod,

7 outer lanes of piston body do not contact with 1 inboard of cylinder, and the outer lane is equipped with a plurality of ring channels 8, with the crisscross cover each other of ring-shaped rubber pad 9 and spacing collar structure 10 put inside a plurality of ring channels 8, through 8 outer lanes of a plurality of ring channels to closing at 1 inner wall of cylinder, 7 antithetical couplets of fungible piston body carry out up-and-down reciprocating motion at 1 inner wall of cylinder, wherein spacing collar structure 10 can provide holding power and limiting displacement for the ring-shaped rubber pad 9 of stirring up-and-down reciprocating, in order to prevent that spacing collar structure 10 outer lane from leading to the fact the damage to ring-shaped rubber pad 9, spacing collar structure 10's outer lane has the limit of connection 14 of scarf for the two sides, spacing collar structure 10 is detachable construction, be convenient for change ring-shaped rubber pad 9 also be convenient for the maintenance.

Drawings

FIG. 1 is a schematic view of the main section structure of the present invention;

FIG. 2 is a schematic view of the top view of the spacing ring structure of the present invention;

FIG. 3 is a schematic top view of the limiting plate structure of the present invention;

FIG. 4 is an enlarged schematic view of part A of the present invention;

FIG. 5 is an enlarged schematic view of the part B of the present invention;

FIG. 6 is an enlarged schematic view of the section C of the present invention;

fig. 7 is a schematic view of the D-portion amplifying structure of the present invention.

Reference symbol comparison table:

1. a cylinder barrel; 2. a piston rod body; 3. oil sealing; 4. a sealing cover; 5. a buffer spring; 6. a connecting plate; 7. a piston body; 8. an annular groove; 9. a ring-shaped rubber pad; 10. a limiting ring structure; 11. the limiting piece structure I; 12. a second limiting piece structure; 13. an arc-shaped sheet; 14. a connecting edge; 15. a limiting groove; 16. a cylindrical through groove; 17. a threaded hole; 18. a limiting block; 19. a bolt; 20. a piston rod structure; 21. a piston structure.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in figures 1-7, a suspension shock absorber piston rod comprises a cylinder barrel 1, an oil seal 3, a seal cover 4, a buffer spring 5, a connecting plate 6 and a piston rod structure 20, wherein the piston rod structure 20 comprises a piston rod body 2 and a piston structure 21, the piston structure 21 comprises a piston body 7, an annular groove 8, a ring-shaped rubber gasket 9 and a limiting ring structure 10, the limiting ring structure 10 comprises a limiting sheet structure I11, a limiting sheet structure II 12 and a bolt 19, the limiting sheet structure I11 comprises an arc-shaped sheet 13, a connecting edge 14, a limiting groove 15, a cylindrical through groove 16, a threaded hole 17 and a limiting block 18, the outer ring of the arc-shaped sheet 13 is provided with a connecting edge 14, two sides of the outer ring of the connecting edge 14 are respectively provided with a chamfer to prevent the ring-shaped rubber gasket 9 from being damaged, one end of the arc-shaped sheet 13 is provided with the limiting groove 15 for the limiting block 18 to be inserted in, one end of the cylindrical through groove 16 penetrates through the connecting edge 14 and the arc-shaped sheet 13 to be connected with one side of the limiting groove 15, the bolt 19 is used for passing through, one end of a threaded hole 17 extends into the arc-shaped piece 13 from one side of a limiting groove 15 far away from the cylindrical through groove 16 and is arranged, one end of the bolt 19 penetrates through the limiting block 18 and then is screwed and fixed in the threaded hole 17 to fix the limiting block 18, one end of the limiting block 18 is connected and fixed with one end of the arc-shaped piece 13 far away from the limiting groove 15, the limiting piece structure I11 is the same as the limiting piece structure II 12 in structure, the limiting piece structure I11 and the limiting piece structure II 12 are mutually inserted and arranged, the limiting groove 15 is adaptive to the limiting block 18, the two limiting grooves 15 and the two limiting blocks 18 in the limiting piece structure I11 and the limiting piece structure II 12 are mutually inserted and arranged together, the operation is convenient, one ends of the two bolts 19 penetrate through the cylindrical through groove 16 and the limiting block 18 and are screwed and combined in the threaded hole 17, and the limiting piece structure I11 and the limiting piece structure II 12 are mutually fixed together, a plurality of annular grooves 8 are arranged in parallel and equidistantly on the outer ring of the piston body 7, a plurality of ring-shaped rubber pads 9 and arc-shaped sheets 13 are matched with the annular grooves 8, the ring-shaped rubber pads 9 and a plurality of limiting ring structures 10 are arranged in the annular grooves 8 in an interpenetration mode, the inner rings of the ring-shaped rubber pads 9 are sleeved in the annular grooves 8, two arc-shaped sheets 13 in the limiting ring structures 10 are clamped in the annular grooves 8 and can provide supporting force and limiting effect for the ring-shaped rubber pads 9 which are shifted up and down in a reciprocating mode, the bottom end of the piston rod body 2 penetrates through the center of the piston body 7 in the piston structure 21, the bottom end of the piston rod body 2 fixes the piston structure 21 through nuts, and the piston rod structure 20 is movably arranged in the cylinder barrel 1, the equal activity of a plurality of ring shape rubber pads 9 outer lane is supported and is closed 1 inboardly at cylinder in the piston rod structure 20, replace piston body 7 to support and close and carry out reciprocating motion from top to bottom at 1 inner wall of cylinder, 2 top activities of piston rod body stretch out 1 top settings of cylinder, two equal movable sleeve of connecting plate 6 are established on piston rod body 2, the cover is equipped with buffer spring 5 on piston rod body 2 goes up the body, and buffer spring 5 upper and lower both ends all support and close in two 6 relative one sides of connecting plate, further provide the cushioning effect for the suspension bumper shock absorber, piston rod body 2 is overlapped with oil blanket 3 with the crossing department cover in cylinder 1 top, 4 central point of sealed cowling puts the movable sleeve and establishes on piston rod body 2, and cover body outer lane inboard cover closes on 1 top of cylinder.

When the utility model is used, the utility model is provided with a cover,

when the piston rod body 2 and the piston rod structure 20 at the bottom end of the piston rod body perform up-and-down reciprocating motion in the cylinder barrel 1, a plurality of ring-shaped rubber gaskets 9 arranged on the outer ring of the piston body 7 in the piston rod structure 20 can abut against the inner wall of the cylinder barrel 1 to perform up-and-down reciprocating motion, and the main performance is that the outer ring of the ring-shaped rubber gasket 9 can be bent and swung up and down due to up-and-down movement, if the bending degree of the body is too large, the self supporting force can be influenced, because a plurality of spacing ring structures 10 are arranged among the plurality of ring-shaped rubber gaskets 9, the supporting force is provided for the ring-shaped rubber gasket 9 through the spacing ring structures 10, the ring-shaped rubber gasket 9 is prevented from being bent excessively, if one of the ring-shaped rubber gaskets 9 is abraded, and only one ring-shaped rubber gasket 9 needs to be replaced independently.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a suspension shock absorber piston rod, its characterized in that, includes cylinder (1), oil blanket (3), sealed cowling (4), buffer spring (5), connecting plate (6) and piston rod structure (20), piston rod structure (20) include piston rod body (2) and piston structure (21), piston structure (21) are including piston body (7), ring channel (8), circle shape rubber pad (9) and spacing collar structure (10), spacing collar structure (10) are including spacing piece structure one (11), spacing piece structure two (12) and bolt (19), spacing piece structure one (11) are including arc piece (13), connect limit (14), spacing groove (15), cylindricality logical groove (16), screw hole (17) and stopper (18), arc piece (13) outer lane is equipped with connect limit (14), arc piece (13) one end is equipped with spacing groove (15), cylindricality logical groove (16) one end runs through connect limit (14) and arc piece (13) and is connected with spacing groove (15) one side, arc piece outer lane (15) one end is kept away from by cylindricality piece (15) logical groove (13) fixed thread hole (13), spacing groove (15) one end is set up by cylindricality piece (15) one end and spacing groove (15) one end is connected, spacing groove (15) is connected to arc piece (15), spacing groove (15) one end is kept away from arc piece (13) outer lane one end The first limiting piece structure (11) and the second limiting piece structure (12) are mutually inserted and arranged, one end of each bolt (19) penetrates through the cylindrical through groove (16) and the limiting block (18) to form a block body, the block body is screwed in the threaded hole (17), the outer ring of the piston body (7) is parallel to the annular groove (8) in an equidistant mode,

the oil seal structure is characterized in that a plurality of ring-shaped rubber gaskets (9) and a plurality of limiting ring structures (10) are arranged in the annular grooves (8) in an interpenetration mode, the bottom end of the piston rod body (2) penetrates through the center of the piston body (7) in the piston structure (21), the bottom end of the piston rod body (2) is fixed to the piston structure (21) through nuts, the piston rod structure (20) is movably placed inside the cylinder (1), the top end of the piston rod body (2) movably extends out of the top end of the cylinder (1) and is provided with two connecting plates (6), the connecting plates (6) are movably sleeved on the piston rod body (2), the buffer spring (5) is sleeved on the piston rod body (2) in a sleeved mode, the upper end and the lower end of the buffer spring (5) are abutted to the two connecting plates (6) in opposite surfaces, the oil seals (3) are sleeved at the intersection positions of the piston rod body (2) and the top end of the cylinder (1), the sealing cover body (4) is movably sleeved on the piston rod body (2), and the inner side of the cover body is sleeved on the top end of the cylinder (1).

2. A suspension damper piston rod according to claim 1, characterized in that the connecting edge (14) is provided with a chamfer on each side of the outer circumference.

3. A suspension damper piston rod according to claim 1 characterized in that said first stopper structure (11) is identical in structure to said second stopper structure (12).

4. A suspension damper piston rod according to claim 3, characterized in that the limiting groove (15) is adapted to the limiting block (18), and the two limiting grooves (15) and the two limiting blocks (18) in the first limiting piece structure (11) and the second limiting piece structure (12) are inserted into each other.

5. A suspension damper piston rod according to claim 1, characterized in that the ring-shaped rubber pad (9) and the arc-shaped piece (13) are fitted to the annular groove (8).

6. A suspension damper piston rod according to claim 5, characterized in that the inner ring of the ring-shaped rubber gasket (9) is nested in the annular groove (8), and both of the arc-shaped pieces (13) of the retainer ring structure (10) are clamped in the annular groove (8).

7. A suspension damper piston rod according to claim 6, characterized in that the outer rings of the ring-shaped rubber pads (9) in the piston rod structure (20) are movably abutted against the inner side of the cylinder tube (1).