CN218031219U

CN218031219U - Aluminum cylinder adjustable large-range damper

Info

Publication number: CN218031219U
Application number: CN202222335136.0U
Authority: CN
Inventors: 董志成; 马述生; 蔡卫国
Original assignee: Hangzhou Kingston Industrial Co ltd
Current assignee: Hangzhou Kingston Industrial Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-13
Anticipated expiration: 2032-09-01

Abstract

The utility model discloses an adjustable large-scale journey attenuator of aluminium section of thick bamboo, including the outer cylinder body, the inner cylinder body, the cylinder bottom, the piston rod assembly, adjust the optical axis, the position sleeve assembly, the rebound valve assembly, the compression valve assembly, oil blanket subassembly and guide holder, the one end of outer cylinder body is equipped with the inside flanging of cooperation oil blanket subassembly, the cylinder cap structure of the outer cylinder body is formed in the cooperation of inside flanging and oil blanket subassembly, the oil blanket subassembly is located between guide holder and the inside flanging and the back-off is on the guide holder, and the outer lane of oil blanket subassembly compresses tightly on the inner wall of outer cylinder body through the outer lane of guide holder, the compression valve assembly includes the disk seat, install the valve block on the disk seat, the throttle seat, valve gap and compression spring. The utility model can prevent the oil seal component from being extruded and deformed or even damaged when the inner flange of the aluminum cylinder body with lower hardness is bent, and ensure the sealing performance of the oil seal component; and is convenient to assemble; meanwhile, the overall height of the compression valve is reduced, the space occupied by the compression valve can be reduced, the sufficient stroke of the damper is ensured, and the use comfort is ensured.

Description

Aluminum cylinder adjustable large-range damper

Technical Field

The utility model relates to a attenuator especially relates to an adjustable large-scale journey attenuator of aluminium section of thick bamboo.

Background

In order to simplify the structure of the cylinder cover, an existing adjustable damper (especially a double-cylinder structure) usually bends one end of a cylinder body into an inward flange to match with an oil seal assembly to form the cylinder cover structure; however, the conventional cylinder cover structure formed by matching the oil seal assembly with the inner flanging is generally only suitable for an iron cylinder body and is not suitable for an aluminum cylinder body, mainly because the hardness of the aluminum cylinder body is low, the oil seal assembly is easily extruded and deformed or even damaged when the inner flanging is bent by the cylinder body, and the sealing property of the oil seal assembly is influenced;

in addition, an O-shaped ring is usually required to be arranged between the outer ring of the oil seal assembly and the inner wall of the cylinder body for sealing in the oil seal assembly adopted by the conventional aluminum cylinder body, and the O-shaped ring is used as an independent component in the structure, so that not only is the assembly troublesome, but also leakage points are increased to a certain extent;

in addition, the valve cover, the accelerator seat and other parts of the conventional aluminum cylinder seat damper compression valve are large in thickness or size, and the valve cover is generally coated at one end of the valve seat, so that the whole compression valve is high in height, too much space is occupied in the seat damper, the phenomenon of insufficient stroke of the damper is easy to occur, and the use comfort is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects and shortcomings in the prior art, the utility model provides a cylinder cover structure formed by matching an oil seal assembly reversely buckled on a guide seat with an inner flanging of an outer cylinder body, which ensures the supporting strength of the oil seal assembly, prevents the oil seal assembly from being deformed or even damaged by extrusion when the inner flanging of an aluminum cylinder body with lower hardness is bent, and ensures the sealing property of the oil seal assembly; the outer ring of the oil seal assembly is pressed on the outer wall of the outer cylinder body by the outer ring of the guide seat, so that an O-shaped ring is omitted, and the assembly is convenient; meanwhile, the thickness and the diameter of the valve cover and the accelerator seat of the compression valve are reduced, the original valve cover surrounds the valve seat, and the valve cover is changed into the valve cover which is embedded in the valve seat, so that the overall height of the compression valve is reduced, the space occupied by the compression valve can be reduced, the enough stroke of the damper is ensured, and the use comfort is ensured; meanwhile, the use of materials can be reduced to a certain extent, the assembly is more convenient and faster, the production cost is reduced, and the production efficiency is improved.

The technical scheme of the utility model: an aluminum tube adjustable large-stroke damper comprises an outer cylinder body, an inner cylinder body, a cylinder bottom, a piston rod assembly, an adjusting optical axis, a positioning sleeve assembly, a recovery valve assembly, a compression valve assembly, an oil seal assembly and a guide seat, wherein the guide seat is positioned between one end of the outer cylinder body and one end of the inner cylinder body, the compression valve assembly is positioned between the other end of the outer cylinder body and the other end of the inner cylinder body, one end of the outer cylinder body is provided with an inner flanging matched with the oil seal assembly, the inner flanging and the oil seal assembly are matched to form a cylinder cover structure of the outer cylinder body, the oil seal assembly is positioned between the guide seat and the inner flanging and is reversely buckled on the guide seat, the outer ring of the oil seal assembly is pressed on the inner wall of the outer cylinder body through the outer ring of the guide seat, the compression valve assembly comprises a valve seat, a valve plate installed on the valve seat, an oil valve seat, a valve cover and a compression spring, the valve cover is embedded in the valve seat, the top surface of the valve cover is flush with the top surface of the valve seat, the oil valve cover is installed between the valve seat and the valve seat, the diameter of the valve cover is smaller than the valve seat, and the diameter of the valve seat is smaller than the diameter of the valve seat.

The utility model adopts the oil seal component which is reversely buckled on the guide seat to match with the inner flanging of the outer cylinder body to form a cylinder cover structure, thereby ensuring the supporting strength of the oil seal component, preventing the oil seal component from being deformed or even damaged by extrusion when the inner flanging of the aluminum cylinder body with lower hardness is bent, and ensuring the sealing property of the oil seal component; the outer ring of the oil seal assembly is pressed tightly on the outer wall of the outer cylinder body by adopting the outer ring of the guide seat, so that an O-shaped ring is omitted, and the assembly is convenient; meanwhile, the thickness and the diameter of the valve cover and the accelerator seat of the compression valve are reduced, the original valve cover surrounds the valve seat, and the valve cover is changed into the valve cover which is embedded in the valve seat, so that the overall height of the compression valve is reduced, the space occupied by the compression valve can be reduced, the sufficient stroke of the damper is ensured, and the use comfort is ensured; meanwhile, the use of materials can be reduced to a certain extent, the assembly is more convenient and quicker, the production cost is reduced, and the production efficiency is improved.

Preferably, the outer cylinder body and the inner cylinder body are aluminum cylinder bodies, a reinforcing gasket is arranged between the oil seal assembly and the inner flanging, the diameter of the reinforcing gasket is smaller than the outer diameter of the oil seal assembly, and an arc-shaped chamfer matched with the inner flanging is arranged on one side of the outer ring of the reinforcing gasket.

The structure further ensures the supporting strength of the oil seal assembly and ensures the firmness of the cylinder cover structure.

Preferably, the outer ring of the oil seal assembly is provided with an inclined convex ring matched with the outer ring of the guide seat, the outer ring of one end of the guide seat is provided with an inclined pressing ring matched with the inclined convex ring, and the inner ring of the oil seal assembly is pressed on the piston rod assembly through a limiting spring.

The structure ensures that the outer ring of the oil seal component can be well pressed on the inner wall of the outer cylinder body by the guide seat, the inner ring of the oil seal component can be well pressed on the piston rod assembly by the limiting spring, and the all-dimensional sealing performance of the oil seal component is ensured.

Preferably, the adjusting optical axis is installed in the piston rod assembly, an adjusting pin shaft is connected to an end portion of the adjusting optical axis, and a pin shaft groove matched with the adjusting pin shaft is formed in one end of the piston rod assembly.

The structure facilitates the installation of the adjusting pin shaft and the adjustment of the adjusting pin shaft to drive the adjusting optical axis to rotate.

Preferably, be equipped with the valve gap mounting groove of cooperation valve gap and the throttle seat mounting groove of cooperation throttle seat on the disk seat, the valve gap mounting groove is located the outside of throttle seat mounting groove, the valve block is located the bottom of throttle seat mounting groove.

The structure ensures the stability and the reliability of the valve cover, the accelerator seat and the valve plate on the valve seat.

Preferably, the outer ring of the valve cover mounting groove is a valve cover check ring matched with the valve cover, the outer ring of the accelerator seat mounting groove is an accelerator seat check ring matched with the accelerator seat, and a gap is reserved between one side of the accelerator seat check ring and the accelerator seat.

The structure guarantees the integral strength of the valve seat on the premise of guaranteeing the installation stability of the valve cover and the accelerator seat.

Preferably, the middle part of the accelerator seat is provided with a limit boss matched with the compression spring, the compression spring is wide at the top and narrow at the bottom, the lower end of the compression spring is sleeved on the limit boss, the limit boss is narrow at the top and wide at the bottom, and the upper end of the compression spring is propped against the inner side of the valve cover.

The structure ensures that the compression spring can be well arranged between the valve cover and the accelerator seat.

Preferably, the valve cover comprises a valve cover outer ring and a cover top which are integrally formed in a bending mode, a valve cover through hole is formed in the middle of the cover top, and the upper end of the compression spring abuts against the joint of the valve cover outer ring and the cover top.

The structure facilitates the manufacture of the valve cover, reduces the manufacturing cost and further ensures the installation stability of the compression spring.

Preferably, the diameter of the valve cover through hole is larger than that of the limiting boss, and the diameter of the valve cover through hole is smaller than that of the throttle seat; the outer ring of the valve seat is provided with a limiting step, and chamfers are arranged on the outer side of the bottom of the limiting step and the outer side of the top of the valve cover retainer ring.

The structure further ensures the installation stability of the accelerator seat; the valve seat is convenient to assemble with the inner wall of the inner cylinder body and the outer cylinder body of the damper.

Preferably, the piston rod assembly includes the piston rod and connects the lug in piston rod one end, cylinder bottom and outer cylinder body integrated into one piece, be equipped with first oilless bearing on the lug, be equipped with the second oilless bearing on the cylinder bottom.

The structure ensures the integral strength and simultaneously facilitates the installation of the piston rod assembly and the outer cylinder body.

The utility model adopts the oil seal component which is reversely buckled on the guide seat to match with the inner flanging of the outer cylinder body to form a cylinder cover structure, thereby ensuring the supporting strength of the oil seal component, preventing the oil seal component from being deformed or even damaged by extrusion when the inner flanging of the aluminum cylinder body with lower hardness is bent, and ensuring the sealing property of the oil seal component; the outer ring of the oil seal assembly is pressed on the outer wall of the outer cylinder body by the outer ring of the guide seat, so that an O-shaped ring is omitted, and the assembly is convenient; meanwhile, the thickness and the diameter of the valve cover and the accelerator seat of the compression valve are reduced, the original valve cover surrounds the valve seat, and the valve cover is changed into the valve cover which is embedded in the valve seat, so that the overall height of the compression valve is reduced, the space occupied by the compression valve can be reduced, the sufficient stroke of the damper is ensured, and the use comfort is ensured; meanwhile, the use of materials can be reduced to a certain extent, the assembly is more convenient and quicker, the production cost is reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic cross-sectional view of a rebound valve assembly of the present invention extending to the bottom;

fig. 2 is a schematic cross-sectional view of the rebound valve assembly of the present invention returning to the bottom;

FIG. 3 is an enlarged view taken at I of FIG. 2;

fig. 4 is a schematic structural view of a middle compression valve assembly according to the present invention;

fig. 5 is a schematic structural view of the present invention;

in the drawing, 1, an outer cylinder body, 2, an inner cylinder body, 3, a cylinder bottom, 4, a piston rod assembly, 5, an adjusting optical axis, 6, a positioning sleeve assembly, 7, a recovery valve assembly, 8, a compression valve assembly, 9, an oil seal assembly, 10, a guide seat, 11, a valve cover, 12, a compression spring, 13, an accelerator seat, 14, a valve plate, 15, a valve seat, 16, a valve cover installation groove, 17, an accelerator seat installation groove, 18, a valve cover retainer ring, 19, an accelerator seat retainer ring, 20, a limiting boss, 21, a valve cover through hole, 22, a limiting step, 23, an adjusting pin shaft, 24, a reinforcing gasket, 25, a first oil-free bearing, 26, a second oil-free bearing, 27, an inner flanging, 28, an arc-shaped chamfer, 29, an inclined pressing ring, 30, an inclination and 31, a limiting spring are arranged.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1-5, an aluminum cylinder adjustable large-stroke damper includes an outer cylinder body 1, an inner cylinder body 2, a cylinder bottom 3, a piston rod assembly 4, an adjusting optical axis 5, a positioning sleeve assembly 6, a restoring valve assembly 7, a compression valve assembly 8, an oil seal assembly 9 and a guide seat 10, wherein the guide seat 10 is located between one end of the outer cylinder body 1 and one end of the inner cylinder body 2, and the compression valve assembly 8 is located between the other end of the outer cylinder body 1 and the other end of the inner cylinder body 2. One end of the outer cylinder body 1 is provided with an inner flanging 27 matched with the oil seal assembly 9, the inner flanging 27 and the oil seal assembly 9 are matched to form a cylinder cover structure of the outer cylinder body 1, the oil seal assembly 9 is positioned between the guide seat 10 and the inner flanging 27 and is reversely buckled on the guide seat 10, the outer ring of the oil seal assembly 9 is tightly pressed on the inner wall of the outer cylinder body 1 through the outer ring of the guide seat 10, the compression valve assembly 8 comprises a valve seat 15, a valve plate 14 installed on the valve seat 15, an accelerator seat 13, a valve cover 11 and a compression spring 12, the valve cover 11 is embedded in the valve seat 15, the top surface of the valve cover 11 is flush with the top surface of the valve seat 15, the accelerator seat 13 is installed between the valve cover 11 and the valve seat 15 and is tightly pressed on the valve seat 15 through the compression spring 12, the valve plate 14 is installed between the accelerator seat 13 and the valve seat 15, the diameter of the accelerator seat 13 is smaller than that of the valve cover 11, and the diameter of the valve cover 11 is smaller than that of the valve seat 15. The valve seat 15 is provided with a valve cover mounting groove 16 matched with the valve cover 11 and an accelerator seat mounting groove 17 matched with the accelerator seat 13, the valve cover mounting groove 16 is positioned at the outer side of the accelerator seat mounting groove 17, and the valve plate 14 is positioned at the bottom of the accelerator seat mounting groove 17. The outer ring of the valve cover mounting groove 16 is a valve cover retainer 18 matched with the valve cover 11, the outer ring of the accelerator seat mounting groove 17 is an accelerator seat retainer 19 matched with the accelerator seat 13, and a gap is reserved between one side of the accelerator seat retainer 19 and the accelerator seat 13. The middle part of accelerator seat 13 is equipped with spacing boss 20 of cooperation pressure spring 12, and pressure spring 12 is wide from top to bottom narrow (the biggest external diameter of the upper end of pressure spring is greater than the biggest external diameter of lower extreme), and its lower pot head is on spacing boss 20, and spacing boss 20 is narrow from top to bottom wide, and the upper end of pressure spring 12 pushes up the inboard at valve gap 11. The valve cover 11 comprises a valve cover outer ring and a cover top which are integrally formed in a bending mode, a valve cover through hole 21 is formed in the middle of the cover top, and the upper end of the compression spring 12 abuts against the joint of the valve cover outer ring and the cover top. The diameter of the valve cover through hole 21 is larger than that of the limiting boss 20, and the diameter of the valve cover through hole 21 is smaller than that of the accelerator seat 13. The outer ring of the valve seat 15 is provided with a limiting step 22, and the outer side of the bottom of the limiting step 22 and the outer side of the top of the valve cover retainer ring 18 are both provided with chamfers. The outer cylinder body 1 and the inner cylinder body 2 are both aluminum cylinder bodies, a reinforcing gasket 24 is arranged between the oil seal assembly 9 and the inner flanging 27, the diameter of the reinforcing gasket 24 is smaller than the outer diameter of the oil seal assembly 9, and an arc-shaped chamfer 28 matched with the inner flanging 27 is arranged on one side of the outer ring of the reinforcing gasket 24. An inclined convex ring 29 matched with the outer ring of the guide seat 10 is arranged on the outer ring of the oil seal assembly 9, an inclined pressing ring 30 matched with the inclined convex ring 29 is arranged on the outer ring of one end of the guide seat 10, and the inner ring of the oil seal assembly 9 is pressed on the piston rod assembly 4 through a limiting spring 31. The adjusting optical axis 5 is arranged in the piston rod assembly 4, the end part of the adjusting optical axis is connected with an adjusting pin shaft 23, and one end of the piston rod assembly 4 is provided with a pin shaft groove matched with the adjusting pin shaft 23. The piston rod assembly 4 comprises a piston rod and a lifting lug connected to one end of the piston rod, the cylinder bottom 3 and the outer cylinder body 1 are integrally formed, a first oilless bearing 25 is arranged on the lifting lug, and a second oilless bearing 26 is arranged on the cylinder bottom 3.

The utility model provides an adjust optical axis, position sleeve assembly and rebound valve assembly and become the conventional part of current adjustable damper, its concrete structure and theory of operation are conventional means, so do not describe in detail.

The utility model provides a compression valve assembly is brand-new, occupy the compression valve structure that the attenuator inner space is little, increase seat attenuator stroke, solves the not enough condition of some current small seat attenuator inner spaces and strokes. The novel design is carried out on the damper compression valve which is high in height and large in occupied space, so that the height of the compression valve seat is reduced, the size of the valve cover is reduced, the thickness and the outer diameter of the throttle seat are reduced, and the original valve cover surrounds the valve seat and is changed into the valve cover which is embedded in the valve seat; the space of the damper occupied by the compression valve of the seat shock absorber can be reduced, the use of a large amount of materials can be reduced, the assembly is more convenient and quicker, the production cost is reduced, and the production efficiency is improved.

It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications can be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Claims

1. The utility model provides an adjustable large-scale journey attenuator of aluminium section of thick bamboo, includes outer cylinder body, inner cylinder body, cylinder bottom, piston rod assembly, adjusts optical axis, position sleeve assembly, rebound valve assembly, compression valve assembly, oil blanket subassembly and guide holder, the guide holder is located between the one end of outer cylinder body and the one end of inner cylinder body, the compression valve assembly is located between the other end of outer cylinder body and the other end of inner cylinder body, its characterized in that: the compression valve assembly comprises a valve seat, a valve plate, an accelerator seat, a valve cover and a compression spring, wherein the valve plate, the accelerator seat, the valve cover and the compression spring are installed on the valve seat, the valve cover is embedded in the valve seat, the top surface of the valve cover is flush with the top surface of the valve seat, the accelerator seat is installed between the valve cover and the valve seat and is compressed on the valve seat through the compression spring, the valve plate is installed between the accelerator seat and the valve seat, the diameter of the accelerator seat is smaller than that of the valve cover, and the diameter of the valve cover is smaller than that of the valve seat.

2. The aluminum cylinder adjustable large stroke damper as claimed in claim 1, wherein: the outer cylinder body and the inner cylinder body are aluminum cylinder bodies, reinforcing gaskets are arranged between the oil seal assemblies and the inner flanging, the diameter of each reinforcing gasket is smaller than the outer diameter of each oil seal assembly, and an arc-shaped chamfer matched with the inner flanging is arranged on one side of the outer ring of each reinforcing gasket.

3. The aluminum cylinder adjustable large stroke damper as claimed in claim 1, wherein: the outer ring of the oil seal assembly is provided with an inclined convex ring matched with the outer ring of the guide seat, the outer ring of one end of the guide seat is provided with an inclined pressing ring matched with the inclined convex ring, and the inner ring of the oil seal assembly is pressed on the piston rod assembly through a limiting spring.

4. The aluminum cylinder adjustable large stroke damper as claimed in claim 1, wherein: the adjusting optical axis is arranged in the piston rod assembly, the end part of the adjusting optical axis is connected with an adjusting pin shaft, and one end of the piston rod assembly is provided with a pin shaft groove matched with the adjusting pin shaft.

5. The aluminum cylinder adjustable large stroke damper as claimed in claim 1, wherein: the throttle valve is characterized in that a valve cover mounting groove matched with a valve cover and a throttle seat mounting groove matched with a throttle seat are formed in the valve seat, the valve cover mounting groove is located in the outer side of the throttle seat mounting groove, and the valve block is located at the bottom of the throttle seat mounting groove.

6. The aluminum cylinder adjustable large stroke damper as claimed in claim 5, wherein: the outer ring of the valve cover mounting groove is a valve cover check ring matched with the valve cover, the outer ring of the accelerator seat mounting groove is an accelerator seat check ring matched with the accelerator seat, and a gap is reserved between one side of the accelerator seat check ring and the accelerator seat.

7. The aluminum cylinder adjustable large stroke damper as claimed in claim 5, wherein: the middle part of the accelerator seat is provided with a limiting boss matched with the compression spring, the compression spring is wide at the top and narrow at the bottom, the lower end of the compression spring is sleeved on the limiting boss, the limiting boss is narrow at the top and wide at the bottom, and the upper end of the compression spring is propped against the inner side of the valve cover.

8. The aluminum cylinder adjustable large stroke damper as recited in claim 7, wherein: the valve cover comprises a valve cover outer ring and a cover top which are integrally formed in a bending mode, a valve cover through hole is formed in the middle of the cover top, and the upper end of the compression spring abuts against the joint of the valve cover outer ring and the cover top.

9. The aluminum cylinder adjustable large stroke damper as recited in claim 8, wherein: the diameter of the valve cover through hole is larger than that of the limiting boss, and the diameter of the valve cover through hole is smaller than that of the accelerator seat; the outer ring of the valve seat is provided with a limiting step, and chamfers are arranged on the outer side of the bottom of the limiting step and the outer side of the top of the valve cover check ring.

10. The aluminum cylinder adjustable large stroke damper as claimed in claim 1, wherein: the piston rod assembly comprises a piston rod and a lifting lug connected to one end of the piston rod, the cylinder bottom and the outer cylinder body are integrally formed, a first oilless bearing is arranged on the lifting lug, and a second oilless bearing is arranged on the cylinder bottom.