CN210686814U - Internal and external sealing structure of oil storage cylinder of large-cylinder-diameter shock absorber - Google Patents
Internal and external sealing structure of oil storage cylinder of large-cylinder-diameter shock absorber Download PDFInfo
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- CN210686814U CN210686814U CN201921592389.8U CN201921592389U CN210686814U CN 210686814 U CN210686814 U CN 210686814U CN 201921592389 U CN201921592389 U CN 201921592389U CN 210686814 U CN210686814 U CN 210686814U
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- oil pipe
- outer oil
- oil
- shock absorber
- guide sleeve
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Abstract
The utility model relates to a spare part of shock absorber especially relates to an interior outer seal structure of big cylinder diameter shock absorber oil storage section of thick bamboo, including outer oil pipe, interior oil pipe and piston rod and set up uide bushing and the oil blanket between outer oil pipe, interior oil pipe and piston rod, be equipped with outer oil tube cap between oil blanket, uide bushing and the outer oil pipe, the one end chucking of outer oil tube cap is between outer oil pipe and uide bushing, and the other end of outer oil tube cap compresses tightly the oil blanket between uide bushing and piston rod, be equipped with the sealing washer between outer oil tube cap, outer oil pipe and the uide bushing. The utility model discloses an outer oil pipe cover consolidates the oil blanket, prevents that the oil blanket from being strikeed the deformation by big damping force to design the sealing washer between outer oil pipe cover, outer oil pipe and uide bushing, improve intensity and leakproofness ensure the inboard sealed effect in the outside with the oil blanket, guarantee the normal steady work of shock absorber.
Description
Technical Field
The utility model relates to a spare part of shock absorber especially relates to an interior outer seal structure of big cylinder diameter shock absorber oil storage section of thick bamboo.
Background
At present, a sealing structure of a large-bore shock absorber generally adopts a plate-type oil seal to match an outer oil pipe, an inner oil pipe and a piston rod to realize inner and outer sealing of the shock absorber (as shown in fig. 3), the strength of the sealing structure is not high enough, so that the shock absorber is not impact-resistant, when the damping force is large, the plate-type oil seal is easy to deform and arch, so that oil leakage can be generated between the inner side of the oil seal and the piston rod, oil leakage can be generated between the outer side of the oil seal and the outer oil pipe, the sealing performance of the shock absorber is seriously affected, and even.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the leakproofness problem that current big damping shock absorber of big cylinder diameter exists, provide one kind and adopt outer oil pipe cover to consolidate the oil blanket, prevent that the oil blanket from being strikeed by big damping force and warp to design the sealing washer between outer oil pipe cover, outer oil pipe and uide bushing, improve intensity and leakproofness ensure the inboard sealed effect in the outside of oil blanket, guarantee the interior outer seal structure of the big cylinder diameter shock absorber oil storage section of thick bamboo of shock absorber normal steady work.
Therefore, the utility model adopts the following technical scheme: the utility model provides an interior outer seal structure of big cylinder diameter shock absorber oil storage section of thick bamboo, includes outer oil pipe, interior oil pipe and piston rod and sets up uide bushing and the oil blanket between outer oil pipe, interior oil pipe and the piston rod, be equipped with outer oil pipe lid between oil blanket, uide bushing and the outer oil pipe, the one end chucking of outer oil pipe lid is between outer oil pipe and uide bushing, and the other end of outer oil pipe lid compresses tightly the oil blanket between uide bushing and piston rod, be equipped with the sealing washer between outer oil pipe lid, outer oil pipe and the uide bushing.
The utility model discloses an outer oil pipe cover consolidates the oil blanket, prevents that the oil blanket from being strikeed the deformation by big damping force to design the sealing washer between outer oil pipe cover, outer oil pipe and uide bushing, improve intensity and leakproofness ensure the inboard sealed effect in the outside with the oil blanket, guarantee the normal steady work of shock absorber.
Preferably, the outer oil pipe cover comprises a pressing ring at the top, a clamping ring at the bottom and a connecting ring for connecting the pressing ring and the clamping ring, and the top of the outer oil pipe is provided with a sealing flange matched with the clamping ring.
This kind of structure further ensures the intensity and the sealed effect of seal structure.
Preferably, the cross-sectional area of the space at the joint of the outer oil pipe, the guide sleeve and the outer oil pipe cover is 0.5 × 4.25=9.03, and the cross-sectional area of the sealing ring is pi × 1.75= 9.6.
The space sectional area of the joint of the outer oil pipe, the guide sleeve and the outer oil pipe cover is smaller than the sectional area of the sealing ring, so that the sealing ring can seal the space of the joint of the outer oil pipe, the guide sleeve and the outer oil pipe cover, and the oil leakage phenomenon in the gap between the outer oil pipe, the guide sleeve and the outer oil pipe cover is prevented.
Preferably, the oil seal is compressed between the guide sleeve and the piston rod by the compression ring to form an inner sealing structure, the clamping ring is clamped between the sealing flanging and the guide sleeve, and sealing rings are arranged among the clamping ring, the guide sleeve and the outer oil pipe to form an outer sealing structure.
The oil seal of the utility model provides an inner sealing function for the shock absorber; the sealing ring is arranged between the outer oil pipe cover, the guide sleeve and the outer oil pipe to provide an outer sealing effect for the shock absorber; the oil seal is reduced to be hidden in the outer oil pipe cover, so that the oil seal is protected more, the oil seal cannot be arched and deformed due to overlarge pressure of the inner cavity of the guide sleeve when the oil seal is exposed to impact with large damping, and the outer oil pipe cover is thickened to increase the strength and impact resistance of the shock absorber.
Preferably, the guide sleeve is provided with a support ring for supporting the oil seal, and the inner diameter of the connecting ring is matched with the outer diameter of the oil seal and the outer diameter of the support ring.
The utility model discloses reducing the plate-type oil blanket of original major diameter, in the outer oil pipe lid of impressing, making the oil blanket closely paste the jail with outer oil pipe lid, produce the fixed action to the oil blanket, make the oil blanket can bear the produced powerful impact force of big damping, shift some impact force to more strong outer oil pipe simultaneously and cover, cover the bodiness with outer oil pipe, improve impact strength resistance.
The utility model discloses an outer oil pipe cover consolidates the oil blanket, prevents that the oil blanket from being strikeed the deformation by big damping force to design the sealing washer between outer oil pipe cover, outer oil pipe and uide bushing, improve intensity and leakproofness ensure the inboard sealed effect in the outside with the oil blanket, guarantee the normal steady work of shock absorber.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the outer oil pipe cap of the present invention;
fig. 3 is a schematic structural view of a sealing structure in the background art of the present invention;
in the figure, 1, an outer oil pipe, 2, an inner oil pipe, 3, an oil seal, 4, a guide sleeve, 5, a piston rod, 6, an outer oil pipe cover, 7, a sealing ring, 8, a pressing ring, 9, a clamping ring, 10, a connecting ring, 11, a sealing flanging and 12, a support ring 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 and 2, the inner and outer sealing structure of the oil storage cylinder of the large-bore shock absorber comprises an outer oil pipe 1, an inner oil pipe 2, a piston rod 5, a guide sleeve 4 and an oil seal 3 which are arranged between the outer oil pipe 1, the inner oil pipe 2 and the piston rod 5. An outer oil pipe cover 6 is arranged between the oil seal 3, the guide sleeve 4 and the outer oil pipe 1, one end of the outer oil pipe cover 6 is clamped between the outer oil pipe 1 and the guide sleeve 4, the oil seal 3 is tightly pressed between the guide sleeve 4 and the piston rod 5 by the other end of the outer oil pipe cover 6, and a sealing ring 7 is arranged between the outer oil pipe cover 6, the outer oil pipe 1 and the guide sleeve 4. The outer oil pipe cover 6 comprises a pressing ring 8 at the top, a clamping ring 9 at the bottom and a connecting ring 10 for connecting the pressing ring 8 and the clamping ring 9, and a sealing flange 11 matched with the clamping ring 9 is arranged at the top of the outer oil pipe 1. The cross-sectional area of the space at the joint of the outer oil pipe 1, the guide sleeve 4 and the outer oil pipe cover 6 is S1=0.5 × 4.25=9.03, the cross-sectional area of the sealing ring 7 is S2= π × 1.75=9.6, S2 > S1, and the sealing ring can sufficiently seal the space at the joint of the three parts to prevent oil leakage from occurring in the gap between the three parts. The oil seal 3 is tightly pressed between the guide sleeve 4 and the piston rod 5 by the pressing ring 8 to form an inner sealing structure, the clamping ring 9 is tightly clamped between the sealing flanging 11 and the guide sleeve 4, and the sealing ring 7 is arranged among the clamping ring 9, the guide sleeve 4 and the outer oil pipe 1 to form an outer sealing structure. The guide sleeve 4 is provided with a support ring 12 for supporting the oil seal 3, and the inner diameter of the connecting ring 10 is matched with the outer diameter of the oil seal 3 and the outer diameter of the support ring 12.
The utility model discloses an outer oil pipe cover consolidates the oil blanket, prevents that the oil blanket from being strikeed the deformation by big damping force to design the sealing washer between outer oil pipe cover, outer oil pipe and uide bushing, improve intensity and leakproofness ensure the inboard sealed effect in the outside with the oil blanket, guarantee the normal steady work of shock absorber.
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 and modifications of the present invention may 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 (5)
1. The utility model provides an interior outer seal structure of big bore shock absorber oil storage section of thick bamboo, includes outer oil pipe, interior oil pipe and piston rod and sets up uide bushing and the oil blanket between outer oil pipe, interior oil pipe and the piston rod, its characterized in that: an outer oil pipe cover is arranged among the oil seal, the guide sleeve and the outer oil pipe, one end of the outer oil pipe cover is clamped between the outer oil pipe and the guide sleeve, the oil seal is tightly pressed between the guide sleeve and the piston rod by the other end of the outer oil pipe cover, and sealing rings are arranged among the outer oil pipe cover, the outer oil pipe and the guide sleeve.
2. The inner and outer seal structure of the reserve tube of the large-bore shock absorber according to claim 1, wherein: the outer oil pipe cover comprises a pressing ring at the top, a clamping ring at the bottom and a connecting ring for connecting the pressing ring and the clamping ring, and a sealing flange matched with the clamping ring is arranged at the top of the outer oil pipe.
3. The inner and outer seal structure of the reserve tube of the large-bore shock absorber according to claim 1, wherein: the space cross-sectional area of the joint of the outer oil pipe, the guide sleeve and the outer oil pipe cover is 0.5 x 4.25=9.03, and the cross-sectional area of the sealing ring is pi x 1.75= 9.6.
4. The inner and outer seal structure of the reserve tube of the large-bore shock absorber according to claim 2, wherein: the oil seal is tightly pressed between the guide sleeve and the piston rod by the pressing ring to form an inner sealing structure, the clamping ring is tightly clamped between the sealing flanging and the guide sleeve, and sealing rings are arranged among the clamping ring, the guide sleeve and the outer oil pipe to form an outer sealing structure.
5. The inner and outer seal structure of the reserve tube of the large-bore shock absorber according to claim 2, wherein: and a support ring for supporting the oil seal is arranged on the guide sleeve, and the inner diameter of the connecting ring is matched with the outer diameter of the oil seal and the outer diameter of the support ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592389.8U CN210686814U (en) | 2019-09-24 | 2019-09-24 | Internal and external sealing structure of oil storage cylinder of large-cylinder-diameter shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592389.8U CN210686814U (en) | 2019-09-24 | 2019-09-24 | Internal and external sealing structure of oil storage cylinder of large-cylinder-diameter shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686814U true CN210686814U (en) | 2020-06-05 |
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ID=70901239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921592389.8U Active CN210686814U (en) | 2019-09-24 | 2019-09-24 | Internal and external sealing structure of oil storage cylinder of large-cylinder-diameter shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210686814U (en) |
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2019
- 2019-09-24 CN CN201921592389.8U patent/CN210686814U/en active Active
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