CN210949654U - Single-cylinder shock absorber one-way sealing structure and single-cylinder shock absorber adopting same - Google Patents
Single-cylinder shock absorber one-way sealing structure and single-cylinder shock absorber adopting same Download PDFInfo
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- CN210949654U CN210949654U CN201921165889.3U CN201921165889U CN210949654U CN 210949654 U CN210949654 U CN 210949654U CN 201921165889 U CN201921165889 U CN 201921165889U CN 210949654 U CN210949654 U CN 210949654U
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Abstract
The utility model provides a single cylinder shock absorber one-way seal structure and adopt single cylinder shock absorber of this structure, set up the valve on single cylinder shock absorber's bottom, the valve includes foraminiferous end cap, spring and toper piece, when aerifing to the gas receiver in through the valve, the toper piece pushes down, inflation equipment, valve and gas receiver intercommunication, can aerify in the gas receiver, need not specific frock and complicated inflation equipment, after inflating and finishing, the toper piece is bounced, closely laminate with the bottom, make valve self-sealing, whole seal structure is simple, and convenient for operation, the inflation process can not produce gaseous the revealing almost, and the production efficiency is greatly improved, and the production cost is saved.
Description
Technical Field
The utility model relates to a single-tube shock absorber field of making especially relates to a single-tube shock absorber one-way seal structure.
Background
Currently, in the field of automobile shock absorbers, dual-tube shock absorbers and single-tube shock absorbers are most commonly used, wherein a gas storage chamber filled with high-pressure nitrogen is required to be arranged at one end in a cylinder of the single-tube shock absorber, so that the change of the volume of the cylinder caused by the inlet and outlet of a piston rod can be compensated through the gas storage chamber, and therefore, the requirement on the sealing performance of the gas storage chamber is high.
Patent document CN201720851462.3 provides a one-way sealing structure of a single-tube shock absorber, which only seals the air storage chamber through a rubber sheet and a metal elastic sheet, and the rubber sheet and the metal elastic sheet are easily ineffective, resulting in an unsatisfactory sealing effect of the air storage chamber of the shock absorber.
Therefore, the structure of the existing gas storage chamber of the single-cylinder shock absorber is not reasonable, the single-cylinder shock absorber can be inflated only by matching with complex inflation equipment and assisting with a specific tool, the technical difficulty is high, the operation is complex, the production efficiency is extremely low, a large amount of gas can be generated in the inflation process, so that the resource waste is caused, and the production cost is increased.
Therefore, the one-way sealing structure of the single-cylinder shock absorber and the single-cylinder shock absorber adopting the structure are urgently needed, and the problems that the structure of the air storage chamber of the existing single-cylinder shock absorber is unreasonable, the inflation can be completed only by complex inflation equipment and specific tools, the operation is complex and the difficulty is high, a large amount of gas leakage can be generated, and the production efficiency is low and the production cost is high can be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a single-cylinder shock absorber one-way seal structure and adopt single-cylinder shock absorber of this structure to it is unreasonable to solve above-mentioned current single-cylinder shock absorber reservoir structure, needs complicated inflation equipment and specific frock just can accomplish and aerify, and the operation is complicated and the degree of difficulty is big, still can produce gaseous a large amount of revealing, causes the problem that production efficiency hangs down high in production cost.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a single-cylinder shock absorber one-way sealing structure, which comprises a floating piston, an outer cylinder and a bottom cover, wherein the floating piston is arranged inside the outer cylinder, the bottom cover is arranged at the bottom of the outer cylinder, the floating piston and the bottom cover enable the outer cylinder to form a sealed air storage chamber, and an air inlet matched with an air cock of an inflating device is arranged on the bottom cover;
the air inlet inner end is equipped with the valve, the valve is equipped with elastic telescopic sealing member, the sealing member can with the air inlet internal surface matches and makes its sealed, when aerifing, the sealing member receives inflation equipment's pressure, the valve is opened, and after the inflation is accomplished, the sealing member receives the elasticity of elastic component, the valve self-sealing.
Preferably, the middle aperture of the air inlet is gradually contracted from the inner end to the outer end to form a conical surface.
Preferably, the valve comprises a plug with a hole, a spring and a conical block, the plug with the hole is fixed at the inner end of the air inlet, the conical block is tightly attached to the conical surface, the spring is compressed between the plug with the hole and the conical block, when the air storage chamber is not inflated, the spring is in a compressed state, and when the air storage chamber is inflated, the spring is further compressed.
Preferably, the perforated plug is in threaded connection with the air inlet.
Preferably, the surface roughness of the tapered block and the tapered surface is Ra0.05-Ra0.1.
Preferably, the conical block is made of rubber.
Preferably, the outer end of the air inlet is provided with a fastening screw in a threaded manner, and a sealing gasket is arranged between the fastening screw and the bottom cover.
The utility model also provides a single-cylinder shock absorber, including floating piston, urceolus, bottom, oil blanket and piston assembly, be equipped with foretell single-cylinder shock absorber one-way seal structure on the bottom.
The utility model discloses following beneficial technological effect has been gained for prior art:
the utility model provides a pair of single-tube shock absorber one-way seal structure and adopt single-tube shock absorber of this structure, set up the valve on single-tube shock absorber's bottom, the valve includes foraminiferous end cap, spring and toper piece, when aerifing to the gas receiver in through the valve, the toper piece pushes down, inflation equipment, valve and gas receiver intercommunication, can aerify in the gas receiver, need not specific frock and complicated inflation equipment, after inflating and finishing, the toper piece is bounced, closely laminate with the bottom, make valve self-sealing, whole seal structure is simple, and convenient for operation, the inflation process can not produce gaseous the revealing almost, and the production efficiency is greatly improved, and the production cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a one-way sealing structure of a mono-tube shock absorber provided by the present invention without installing an air valve;
fig. 2 is a schematic structural view of the single-tube shock absorber one-way sealing structure provided by the present invention after the valve is installed;
fig. 3 is a schematic structural diagram of a mono-tube damper provided by the present invention;
in the figure: 1: floating piston, 2: outer cylinder, 3: bottom cover, 31: air inlet, 32: tapered surface, 4: air reservoir, 5: valve, 51: plug with hole, 52: spring, 53: conical block, 6: fastening screw, 7: gasket, 8: oil seal, 9: a piston assembly.
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.
The utility model aims at providing a single-cylinder shock absorber one-way seal structure and adopt single-cylinder shock absorber of this structure, through set up the air inlet on the shock absorber bottom cover, set up the valve in the air inlet, carminative toper piece closely laminates with the air inlet inner wall, it is unreasonable to solve current single-cylinder shock absorber reservoir structure, it can accomplish to inflate to need complicated inflation equipment and specific frock, the operation is complicated and the degree of difficulty is big, still can produce gaseous a large amount of reveals, cause the problem that production efficiency hangs down the high production cost.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example 1:
the embodiment provides a one-way sealing structure of a single-cylinder shock absorber, as shown in fig. 1 and fig. 2, the one-way sealing structure of the single-cylinder shock absorber comprises a floating piston 1, an outer cylinder 2 and a bottom cover 3, the floating piston 1 is installed inside the outer cylinder 2, a groove is formed in the side surface of the floating piston 1, a rubber sealing ring is sleeved in the groove and interacts with the inner wall of the outer cylinder 2 through the sealing ring, so as to further realize the separation of oil and gas, an internal thread is arranged at the bottom of the outer cylinder 2, the bottom cover 3 is installed at the bottom of the outer cylinder 2 through a thread, so that a sealed gas storage chamber 4 is formed between the floating piston 1 and the bottom cover 3 inside the outer cylinder 2, in order to conveniently inflate the gas storage chamber 4, gas leakage in the inflating process is reduced, an air inlet 31 is formed in the bottom cover 3, the outer end of the, the outer surface of the sealing element can be matched with the inner surface of the air inlet 31, when the air is inflated, the valve 5 is opened under the pressure of the inflating equipment, and after the air is inflated, the valve 5 is automatically closed under the pressure of the air storage chamber 4, so that the purposes of simple inflation and less air leakage are achieved.
Specifically, the central aperture of the air inlet 31 is set to a structure that gradually shrinks from the inner end to the outer end, so that the central part of the air inlet 31 forms a conical surface 32; correspondingly, the valve 5 comprises a perforated plug 51, the perforated plug 51 is screwed in and fixed at the inner end of the air inlet 31 through threads, a conical block 53 is installed in the middle of the air inlet 31, the outer surface of the conical block 53 can be tightly attached to the conical surface 32, so that a sealing structure is formed, a spring 52 is welded between the conical block 53 and the perforated plug 51, the spring 52 is always in a compression state, when the air storage chamber 4 is filled with air and the air faucet of the inflation device is not connected with the air inlet 31, the spring 52 is in the compression state, so that the spring 52 can give an outward elastic force to the conical block 53, the conical block 53 is tightly propped against the conical surface 32, when the air storage chamber 4 is inflated, the air faucet of the inflation device can prop against the conical block 53, and the spring 52 is further compressed, so that the air storage chamber 4, the valve 5 and the inflation device.
Further, in order to make the outer surface of the tapered block 53 and the tapered surface 32 fit more closely and prevent gas leakage in the gas storage chamber 4, the outer surface of the tapered block 53 and the surface of the tapered surface 32 are finely ground to have a surface roughness of ra0.05, so that when they are closely fitted, gas does not escape through the gap between the contact surfaces.
Further, in order to protect the air inlet 31, the inner surface of the outer end of the air inlet 31 is provided with threads, a fastening screw 6 matched with the threads is screwed into the outer end of the air inlet 31, and a gasket 7 is additionally arranged between the fastening screw 6 and the bottom cover 3, so that impurities such as soil can be prevented from entering the interior of the damper through the air inlet 31, and the damper is prevented from being damaged.
The embodiment also provides a monotube shock absorber, as shown in fig. 3, the monotube shock absorber comprises a floating piston 1, an outer cylinder 2, a bottom cover 3, an oil seal 8 and a piston assembly 9, wherein the bottom cover 3 is provided with the monotube shock absorber one-way sealing structure.
Example 2:
the utility model provides a single-cylinder shock absorber one-way seal structure's another kind of embodiment, toper piece 53 adopts the rubber material to set up the groove that spring 52 placed on toper piece 53, like this, the roughness of toper face 32 only need reach Ra3.2 can, need not meticulous processing, because the rubber texture is softer, after receiving the elasticity of spring 52, it can be hugged closely on toper face 32 equally, prevents gaseous effusion.
This embodiment is the same as embodiment 1 except that the structures of the tapered block 53 and the tapered surface 32 are different from embodiment 1.
The utility model provides a single-cylinder shock absorber one-way seal structure and adopt single-cylinder shock absorber of this structure, when using, at first install floating piston 1 in urceolus 2, pack into air inlet 31 with toper piece 53, spring 52 and foraminiferous end cap 51 in proper order, make toper piece 53 laminate with conical surface 32, and compress tightly spring 52, screw in foraminiferous end cap 51 in the inner of air inlet 31, screw in bottom 3 the bottom of urceolus 2 again, bottom 3 and floating piston 1 just so can make urceolus 2 inside form an inclosed reservoir 4, obtain single-cylinder shock absorber one-way seal structure; after the single-cylinder shock absorber is assembled, the air tap of the inflation device is inserted into the outer end of the air inlet 31, the conical block 53 is pressed against the air valve 5 to be communicated, the air storage chamber 4 is inflated, the air tap is pulled out after the inflation is completed, the conical block 53 is automatically attached to the conical surface 32 under the dual effects of the elastic force of the spring 52 and the pressure of the air in the air storage chamber 4 to form a sealing structure, finally the gasket 7 is sleeved on the fastening screw 6, and the fastening screw 6 is screwed into the outer end of the air inlet 31, so that the single-cylinder shock absorber is obtained.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete examples, and the explanation of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present description should not be construed as a limitation of the present invention.
Claims (8)
1. A one-way sealing structure of a single-cylinder shock absorber comprises a floating piston (1), an outer cylinder (2) and a bottom cover (3), wherein the floating piston (1) is installed inside the outer cylinder (2), the bottom cover (3) is installed at the bottom of the outer cylinder (2), and the floating piston (1) and the bottom cover (3) enable the outer cylinder (2) to form a sealed air storage chamber (4), and is characterized in that: an air inlet (31) matched with an air tap of the inflating equipment is formed in the bottom cover (3);
the air inlet (31) inner end is installed with valve (5), valve (5) are equipped with the sealing member that can elastically stretch out and draw back, the sealing member can with air inlet (31) internal surface matches and makes its sealed, when aerifing, the sealing member receives inflation equipment's pressure, valve (5) are opened, and when the inflation is finished, the sealing member receives the elasticity of elastic component, valve (5) self-sealing.
2. The one-way sealing structure of the mono-tube shock absorber according to claim 1, wherein: the middle aperture of the air inlet (31) is gradually contracted from the inner end to the outer end to form a conical surface (32).
3. The one-way sealing structure of the monotube shock absorber according to claim 2, wherein: the air valve (5) comprises a hole plug (51), a spring (52) and a conical block (53), the hole plug (51) is fixed at the inner end of the air inlet (31), the conical block (53) is tightly attached to the conical surface (32), the spring (52) is compressed between the hole plug (51) and the conical block (53), when the air storage chamber (4) is not inflated, the spring (52) is in a compressed state, and when the air storage chamber (4) is inflated, the spring (52) is further compressed.
4. The one-way sealing structure of the mono-tube shock absorber according to claim 3, wherein: the perforated plug (51) is connected with the air inlet (31) through threads.
5. The one-way sealing structure of the mono-tube damper as claimed in claim 4, wherein: the surface roughness of the tapered block (53) and the tapered surface (32) is Ra0.05-Ra0.1.
6. The one-way sealing structure of the mono-tube damper as claimed in claim 4, wherein: the conical block (53) is made of rubber.
7. The one-way sealing structure of the mono-tube shock absorber according to claim 1, wherein: and a fastening screw (6) is installed at the outer end of the air inlet (31) in a threaded manner, and a sealing gasket (7) is arranged between the fastening screw (6) and the bottom cover (3).
8. The utility model provides a monotube shock absorber, includes floating piston (1), urceolus (2), bottom (3), oil blanket (8) and piston assembly (9), its characterized in that: the bottom cover (3) is provided with the one-way sealing structure of the monotube shock absorber as claimed in claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165889.3U CN210949654U (en) | 2019-07-19 | 2019-07-19 | Single-cylinder shock absorber one-way sealing structure and single-cylinder shock absorber adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165889.3U CN210949654U (en) | 2019-07-19 | 2019-07-19 | Single-cylinder shock absorber one-way sealing structure and single-cylinder shock absorber adopting same |
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| Publication Number | Publication Date |
|---|---|
| CN210949654U true CN210949654U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921165889.3U Active CN210949654U (en) | 2019-07-19 | 2019-07-19 | Single-cylinder shock absorber one-way sealing structure and single-cylinder shock absorber adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210949654U (en) |
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