CN216158174U - Shock absorber with dustproof function - Google Patents
Shock absorber with dustproof function Download PDFInfo
- Publication number
- CN216158174U CN216158174U CN202121564811.6U CN202121564811U CN216158174U CN 216158174 U CN216158174 U CN 216158174U CN 202121564811 U CN202121564811 U CN 202121564811U CN 216158174 U CN216158174 U CN 216158174U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- sealing
- oil seal
- oil
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides a shock absorber with a dustproof function, which comprises a piston rod, a piston, a cylinder body assembly, a dustproof cover and a multilayer oil seal assembly, wherein the dustproof cover is arranged on the outer side of the cylinder body assembly and sleeved on the piston rod, the piston is sleeved at one end of the piston rod, the piston rod is used for driving the piston to movably penetrate through the cylinder body assembly, the multilayer oil seal assembly comprises a first oil seal and a second oil seal, the first oil seal and the second oil seal are both sleeved on the piston rod, the first oil seal is arranged in the top end of the cylinder body assembly, and the second oil seal is arranged on the outer side of the top end of the cylinder body assembly and is positioned below the dustproof cover. Compared with the prior art, the utility model can play a dustproof role on devices in the cylinder body assembly through the arrangement of the dustproof cover and the multi-layer oil seal assembly and the arrangement between the positions of the dustproof cover and the oil seal assembly, thereby preventing external dust from entering the cylinder body assembly to pollute the devices and oil and prolonging the service life of the shock absorber.
Description
Technical Field
The utility model relates to the technical field of vibration reduction, in particular to a vibration reducer with a dustproof function.
Background
With the development of technology, shock absorbers have been widely used in the automotive field, but the prior art shock absorbers have drawbacks, such as:
the vibration damping capacity of the vibration damper in the prior art is fixed, the oil passing amount cannot be adjusted, the vibration damping capacity cannot be adjusted, and the rigidity requirements of various conditions and structures cannot be met; and external dust directly enters the shock absorber, so that devices and oil in the shock absorber are easily polluted, and the devices are damaged and the oil is destroyed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a shock absorber with a dustproof function, and the specific technical scheme is as follows:
a shock absorber with a dust-proof function, comprising:
the dustproof cover is arranged on the outer side of the top end of the cylinder body assembly and sleeved on the piston rod;
the piston is sleeved at one end of the piston rod, the piston rod is used for driving the piston to movably penetrate through the cylinder body assembly, and the piston and the inner wall of the cylinder body assembly form dynamic seal for oil in the cylinder body assembly;
the multilayer oil blanket subassembly includes first oil blanket and second oil blanket, first oil blanket with the second oil blanket is all established on the piston rod, first oil blanket sets up in the top of cylinder body subassembly, the second oil blanket sets up the outside on cylinder body subassembly top just is located the shield below.
In a specific embodiment, the second oil seal abuts against the outer side of the top end of the cylinder assembly through the dust cover;
the dustproof cover is detachably covered on the second oil seal, or the dustproof cover is fixedly connected with the second oil seal and forms an integrated dustproof structure with the second oil seal.
In a specific embodiment, the first oil seal comprises a first sealing tongue, a first sealing base and a first sealing body, the first sealing body and the first sealing tongue are both disposed on the first sealing base, and the first sealing tongue is connected to the first sealing body;
the second oil seal comprises a second sealing tongue, a second sealing base and a second sealing main body, wherein the second sealing main body and the second sealing tongue are arranged on the second sealing base, and the second sealing tongue is connected to the second sealing main body;
the first sealing tongue and the second sealing tongue are sleeved on the piston rod.
In a specific embodiment, the top of the first sealing body is in contact with or not in contact with the inner wall of the top end of the cylinder assembly, the side of the first sealing base and/or the side of the first sealing body abuts the inner side wall of the cylinder assembly, or the side of the first sealing base and/or the side of the first sealing body does not abut the inner side wall of the cylinder assembly;
the bottom of the second sealing substrate is abutted against the outer wall of the top of the cylinder assembly, and the side face of the second sealing substrate and/or the side face of the second sealing main body are/is contacted with the inner side wall of the dust cover, or the side face of the second sealing substrate and/or the side face of the second sealing main body are/is not contacted with the inner side wall of the dust cover.
In a specific embodiment, the first oil seal and the second oil seal are both integrally formed seal components;
the top of the first oil seal is in contact with or not in contact with the inner wall of the top end of the cylinder body assembly, and the side part of the first oil seal is abutted against the inner side wall of the cylinder body assembly;
the bottom of the second oil seal is abutted to the outer wall of the top of the cylinder body assembly, and the side part of the second oil seal is in contact with or not in contact with the inner side wall of the dustproof cover.
In a specific embodiment, when the dust cover forms an integrated dust-proof structure with the second oil seal, one end of the dust cover contacting the outer wall of the piston rod and/or one end of the dust cover contacting the second oil seal comprise an elastic member, and the elastic member can be stretched or compressed relative to the movement of the piston rod.
In a specific embodiment, the cross section of the dust cap includes a circle, a polygon, or an irregular circle having a through hole at a central position.
In a specific embodiment, the oil-gas separator further comprises a regulating valve, the cylinder body assembly comprises an inner cylinder, an intermediate cylinder and an outer cylinder, the piston is positioned in the inner cylinder and forms a dynamic seal for oil with the inner wall of the inner cylinder, and the dust cover is arranged on the outer side of the top end of the outer cylinder;
the inner cylinder is communicated with the middle cylinder, the middle cylinder is communicated with the outer cylinder, and the regulating valve is connected with the outer cylinder and the middle cylinder and is used for regulating the oil passing amount between the outer cylinder and the middle cylinder;
the bottom end of the inner cylinder is communicated or not communicated with the bottom end of the outer cylinder, the first oil seal is positioned at the top end of the inner cylinder and is abutted against the inner side wall of the top end of the outer cylinder, and the second oil seal is positioned at the outer side of the top of the outer cylinder.
In a particular embodiment, further comprising a pilot assembly and a base valve;
the guider component is arranged at the top end of the inner cylinder and sleeved on the piston rod, the side part of the guider component is abutted against the inner side wall of the outer cylinder, and the top part of the guider component is abutted against the bottom of the first oil seal;
the bottom valve is arranged at the bottom end of the outer cylinder, is connected with the bottom end of the inner cylinder and is used for opening or closing a passage between the bottom end of the inner cylinder and the bottom end of the outer cylinder.
In a particular embodiment, the oil seal assembly comprises a rubber oil seal assembly or a teflon oil seal assembly;
the dust cover comprises a metal dust cover or a plastic dust cover.
Compared with the prior art, the utility model has the following beneficial effects:
according to the shock absorber with the dustproof function, provided by the utility model, the dustproof effect is achieved on devices in the cylinder body assembly through the arrangement of the dustproof cover and the multi-layer oil seal assembly and the arrangement between the positions of the dustproof cover and the oil seal assembly, external dust is prevented from entering the cylinder body assembly to pollute the devices and oil, and the service life of the shock absorber is prolonged.
Further, the cylinder body subassembly includes inner casing, middle jar and outer jar, and this embodiment can be through the circulation relation between inner casing, outer jar and the middle jar, can adjust the oily volume of crossing in the shock absorber, can produce the throttling effect, and the impact energy is converted into heat energy and release, realizes the regulation to the damping capacity, adapts to the rigidity demand of multiple structure.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a first sectional view of a shock absorber with a dust-proof function in embodiment 1 (an oil seal assembly is not integrally molded);
fig. 2 is a second sectional view of the shock absorber with a dust-proof function in embodiment 1 (the oil seal assembly is not integrally molded);
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a partial sectional view of a first oil seal in embodiment 1 (the oil seal assembly is not integrally molded);
FIG. 5 is an enlarged view of a portion of FIG. 2 at B;
FIG. 6 is an enlarged view of a portion of FIG. 2 at C;
fig. 7 is a third sectional view of the shock absorber with a dust-proof function in embodiment 2 (the oil seal assembly is an integrally molded seal assembly);
fig. 8 is a fourth sectional view of the shock absorber with a dust-proof function in embodiment 2 (the oil seal assembly is an integrally molded seal assembly);
FIG. 9 is an enlarged view of a portion of FIG. 8 at A;
fig. 10 is a partial sectional view of a first oil seal in embodiment 2 (the oil seal assembly is an integrally molded seal assembly).
Reference numerals:
2-inner cylinder; 3-intermediate cylinder; 4-outer cylinder; 5-adjusting the valve; 6-an oil seal assembly; 7-a first oil seal; 8-a second oil seal; 9-a first sealing tongue; 10-a first sealing substrate; 11-a first sealing body; 12-a second sealing tongue; 13-a second sealing substrate; 14-a second sealing body; 15-dust cover; 16-a director assembly; 17-a bottom valve; 18-a piston rod; 19-piston.
Detailed Description
Example 1
As shown in fig. 1 to 6, the present embodiment provides a shock absorber having a dust-proof function, including:
The multilayer oil seal assembly 6 comprises a first oil seal 7 and a second oil seal 8, the first oil seal 7 and the second oil seal 8 are sleeved on the piston rod 18, the first oil seal 7 is arranged in the top end of the cylinder body assembly, and the second oil seal 8 is arranged on the outer side of the top end of the cylinder body assembly and located below the dust cover 15.
Specifically, the number of the oil seal assemblies 6 is preferably 2, and it should be noted that the number of the oil seal assemblies 6 is 2, which is only one of the preferences of the present embodiment, and in other embodiments, there are other numbers of layers, such as: 3 layers, 4 layers, 5 layers or more, and the like.
This embodiment can play dirt-proof effect to the device in the cylinder body subassembly through setting up between the setting of shield 15 and multilayer oil blanket subassembly 6 and the position of shield 15 and oil blanket subassembly 6, avoids outside dust to get into polluting device and fluid in the cylinder body subassembly, prolongs the life of shock absorber.
Specifically, for the convenience of installation, the bottom of cylinder body subassembly is provided with the lug, and this embodiment is no longer listed.
Specifically, the shock absorber with the dustproof function provided by the embodiment is suitable for damping the vibration of the body part of a vehicle such as a car, a truck or a motorcycle.
In this embodiment, the second oil seal 8 abuts against the outer side of the top end of the cylinder assembly through the dust cap 15, and the dust cap 15 is detachably covered on the second oil seal 8, or the dust cap 15 is fixedly connected to the second oil seal 8 and forms an integrated dust-proof structure with the second oil seal 8.
Specifically, the second oil seal 8 is disposed on the outer side of the top end of the cylinder assembly and pressed by the dust cap 15 during assembly, and the dust cap 15 and the second oil seal 8 may be of relatively independent structures or may be of a structure fixedly connected into a whole in advance through vulcanization, adhesion, welding or the like. In this embodiment, it is preferable that the dust cover 15 and the second oil seal 8 are relatively independent structures, and the dust cover 15 is detachably provided on the second oil seal 8.
In this embodiment, the first oil seal 7 includes a first sealing tongue 9, a first sealing base 10, and a first sealing main body 11, the first sealing main body 11 and the first sealing tongue 9 are both disposed on the first sealing base 10, the first sealing tongue 9 is connected to the first sealing main body 11, the second oil seal 8 includes a second sealing tongue 12, a second sealing base 13, and a second sealing main body 14, the second sealing main body 14 and the second sealing tongue 12 are both disposed on the second sealing base 13, and the second sealing tongue 12 is connected to the second sealing main body 14. The first sealing tongue 9 and the second sealing tongue 12 are both sleeved on the piston rod 18.
In this embodiment, the top of the first sealing body 11 may or may not contact the inner wall of the top end of the cylinder assembly, the side of the first sealing base 10 and/or the side of the first sealing body 11 may or may not abut the inner wall of the cylinder assembly, or the side of the first sealing base 10 and/or the side of the first sealing body 11 may or may not abut the inner wall of the cylinder assembly.
Specifically, in the present embodiment, the top of the first sealing body 11 preferably does not contact the inner wall of the top end of the cylinder assembly, and both the side of the first sealing base 10 and the side of the first sealing body 11 preferably abut the inner side wall of the cylinder assembly.
The bottom of the second sealing base 13 abuts against the outer wall of the top of the cylinder assembly, the top contacts or does not contact the inner wall of the dust cover 15, the side of the second sealing base 13 and/or the side of the second sealing body 14 contacts the inner side wall of the dust cover 15, or the side of the second sealing base 13 and/or the side of the second sealing body 14 does not contact the inner side wall of the dust cover 15.
Specifically, in the present embodiment, the top of the second sealing substrate 13 preferably contacts the inner wall of the dust cover 15, and both the side of the second sealing substrate 13 and the side of the second sealing body 14 preferably do not contact the inner side wall of the dust cover 15.
In this embodiment, when the dust cap 15 and the second oil seal 8 form an integrated dust-proof structure, one end of the dust cap 15 contacting the outer wall of the piston rod 18 and/or one end of the dust cap 15 contacting the second oil seal 8 include an elastic member, and the elastic member can be extended or compressed relative to the movement of the piston rod 18. The provision of the dust cap 15 further serves to protect the components within the cylinder assembly from dust, and to stop the ingress of external dust into the cylinder assembly.
In the present embodiment, the cross section of the dust cap 15 includes a circle, a polygon, or an irregular circle having a through hole at the center.
Specifically, in the present embodiment, the cross section of the dust cap 15 is preferably circular with a through hole at the center, and in other embodiments, the cross section of the dust cap 15 is preferably polygonal or irregular circular with a through hole at the center.
In the embodiment, the oil cylinder further comprises a regulating valve 5, the cylinder body assembly comprises an inner cylinder 2, a middle cylinder 3 and an outer cylinder 4, a piston 19 is positioned in the inner cylinder 2 and forms dynamic seal for oil with the inner wall of the inner cylinder 2, and a dust cover 15 is arranged on the outer side of the top end of the outer cylinder 4.
Specifically, the inner cylinder 2 is sleeved on the piston rod 18, the intermediate cylinder 3 is sleeved on the inner cylinder 2, and the outer cylinder 4 is sleeved on the intermediate cylinder 3. The side of the inner cylinder 2 comprises at least one through hole to communicate with the middle cylinder 3, the side of the middle cylinder 3 comprises at least one through hole to communicate with the outer cylinder 4, and the adjusting valve 5 is connected with the outer cylinder 4 and the middle cylinder 3 and is used for adjusting the oil passing amount between the outer cylinder 4 and the middle cylinder 3.
When the piston rod 18 drives the piston 19 to perform a stretching stroke (i.e., to move upward) in the inner cylinder 2, the fluid in the inner cylinder 2 enters the middle cylinder 3 from the through hole on the side of the inner cylinder 2, and when the piston rod 18 drives the piston 19 to perform a compressing stroke (i.e., to move downward) in the inner cylinder 2, the fluid in the middle cylinder 3 enters the inner cylinder 2 from the through hole on the side of the inner cylinder 2. When the piston rod 18 drives the piston 19 to move upwards or downwards in the inner cylinder 2, fluid flow is generated between the inner cylinder 2 and the middle cylinder 3 through the through hole on the side surface of the inner cylinder 2.
Specifically, the embodiment can adjust the oil passing amount in the shock absorber, can generate a throttling effect through the circulation relation among the inner cylinder 2, the outer cylinder 4 and the middle cylinder 3, convert impact energy into heat energy and release the heat energy, realize the adjustment of the shock absorption capacity, and adapt to the rigidity requirements of various structures.
Specifically, in the present embodiment, the side surface of the inner cylinder 2 preferably includes a through hole to communicate with the middle cylinder 3, and in other embodiments, there are other preferable numbers of through holes on the side surface of the inner cylinder 2, such as 2, 3, 4, or more than 4. The side of the intermediate cylinder 3 comprises a through hole for communication with the outer cylinder 4, in other embodiments there are other preferred numbers of through holes in the side of the intermediate cylinder 3, such as 2, 3, 4 or more than 4, etc.
It should be noted that the cylinder assembly including the inner cylinder 2, the middle cylinder 3 and the outer cylinder 4 is only a preferred embodiment, and in other embodiments, the cylinder assembly may also include the inner cylinder 2 and the middle cylinder 3, or include the inner cylinder 2 and the outer cylinder 4, or include the middle cylinder 3 and the outer cylinder 4. The number of cylinders is not limited to 3.
The first oil seal 7 is positioned at the top end of the inner cylinder 2 and is sleeved on the piston rod 18, the top of the first oil seal 7 is preferably not contacted with the inner wall of the top end of the outer cylinder 4, and the side surface of the first oil seal 7 is preferably abutted against the inner side wall of the top end of the outer cylinder 4. Specifically, the top of the first seal body 11 preferably does not contact the inner wall of the top end of the outer cylinder 4, and both the side of the first seal base 10 and the side of the first seal body 11 preferably abut the inner side wall of the top end of the outer cylinder 4.
The second oil seal 8 is positioned at the outer side of the top end of the outer cylinder 4 and is sleeved on the piston rod 18, the top of the second oil seal 8 is preferably contacted with the inner wall of the dust cover 15, and the side surface of the second oil seal 8 is preferably not contacted with the inner side wall of the dust cover 15. Specifically, the top of the second sealing body 14 preferably contacts the inner wall of the dust cover 15, and both the side of the second sealing substrate 13 and the side of the second sealing body 14 preferably do not contact the inner wall of the dust cover 15.
In the embodiment, the oil seal further comprises a guider component 16 and a bottom valve 17, wherein the guider component 16 is arranged at the top end of the inner cylinder 2 and sleeved on the piston rod 18, the side part of the guider component 16 is abutted against the inner side wall of the outer cylinder 4, and the top part of the guider component 16 is abutted against the bottom part of the first oil seal 7. A bottom valve 17 is provided at the bottom end of the outer cylinder 4 and connected to the bottom end of the inner cylinder 2 for opening or closing a passage between the bottom end of the inner cylinder 2 and the bottom end of the outer cylinder 4.
Specifically, the bottom of the guider component 16 is contacted with the top of the inner cylinder 2, the top of the guider component 16 is connected with the bottom of the first oil seal 7, and the side surface of the guider component 16 is abutted against the inner side wall of the top of the outer cylinder 4, so that the top end of the inner cylinder 2 and the inner side wall of the top end of the outer cylinder 4 form a tight seal for oil.
Specifically, a bottom valve 17 is provided at the bottom end of the outer cylinder 4 and connected to the bottom end of the inner cylinder 2 for opening or closing a passage between the bottom end of the inner cylinder 2 and the bottom end of the outer cylinder 4. The bottom end of the inner cylinder 2 is communicated or not communicated with the bottom end of the outer cylinder 4 through a bottom valve 17.
In this embodiment, the oil seal assembly 6 includes a rubber oil seal assembly or a teflon oil seal assembly, and the dust cap 15 includes a metal dust cap or a plastic dust cap.
Compared with the prior art, the shock absorber with dustproof function that this embodiment provided can play dirt-proof effect to the device in the cylinder body subassembly through the setting between the setting of shield and multilayer oil blanket subassembly and shield and oil blanket subassembly's the position, avoids outside dust to get into pollution device and fluid in the cylinder body subassembly, prolongs the life of shock absorber.
Specifically, the cylinder body subassembly includes inner tube, middle jar and outer jar, and this embodiment can be through the circulation relation between inner tube, outer jar and the middle jar, can adjust the oily volume of crossing in the shock absorber, can produce the throttling effect, and the impact energy is converted into heat energy and release, realizes the regulation to damping capacity, adapts to the rigidity demand of multiple structure.
Example 2
As shown in fig. 7 to 10, the present embodiment provides a shock absorber with a dustproof function, and compared with embodiment 1, the main differences of the present embodiment are:
in this embodiment, the first oil seal 7 and the second oil seal 8 are each an integrally formed seal assembly. The top of first oil blanket 7 contacts or does not contact the inner wall on cylinder body subassembly top, the lateral part butt cylinder body subassembly's of first oil blanket 7 inside wall, the outer wall at cylinder body subassembly top is propped to the bottom of second oil blanket 8, the inner wall of top contact or contactless shield 15, lateral part butt or the inside wall of not butt shield 15.
Specifically, the first oil seal 7 is located at the top end of the inner cylinder 2 and is sleeved on the piston rod 18, the top of the first oil seal 7 is preferably not contacted with the inner wall of the top end of the outer cylinder 4, and the side surface of the first oil seal 7 is preferably abutted against the inner side wall of the top end of the outer cylinder 4. The second oil seal 8 is positioned at the outer side of the top end of the outer cylinder 4 and is sleeved on the piston rod 18, the top of the second oil seal 8 is preferably contacted with the inner wall of the dust cover 15, and the side surface of the second oil seal 8 is preferably not contacted with the inner side wall of the dust cover 15.
Specifically, in the present embodiment, the first oil seal 7 includes a first seal tongue 9 and a first seal main body 11, and the first seal tongue 9 and the first seal main body 11 are connected to each other to constitute an integral seal assembly. The second oil seal 8 comprises a second sealing tongue 12 and a second sealing main body 14, and the second sealing tongue 12 and the second sealing main body 14 are connected with each other to form an integral sealing assembly.
In embodiment 1, the first oil seal 7 includes a first sealing tongue 9, a first sealing base 10, and a first sealing main body 11, the first sealing main body 11 and the first sealing tongue 9 are both disposed on the first sealing base 10, the first sealing tongue 9 is connected to the first sealing main body 11, the second oil seal 8 includes a second sealing tongue 12, a second sealing base 13, and a second sealing main body 14, the second sealing main body 14 and the second sealing tongue 12 are both disposed on the second sealing base 13, and the second sealing tongue 12 is connected to the second sealing main body 14. The first sealing tongue 9 and the second sealing tongue 12 are both sleeved on the piston rod 18.
The top of the first sealing body 11 is in contact with or not in contact with the inner wall of the top end of the cylinder assembly, the side of the first sealing base 10 and/or the side of the first sealing body 11 abuts the inner side wall of the cylinder assembly, or the side of the first sealing base 10 and/or the side of the first sealing body 11 does not abut the inner side wall of the cylinder assembly. Specifically, the top of the first sealing body 11 preferably does not contact the inner wall of the top end of the cylinder assembly, and both the side of the first sealing base 10 and the side of the first sealing body 11 preferably abut the inner side wall of the cylinder assembly.
The bottom of the second sealing base 13 abuts against the outer wall of the top of the cylinder assembly, the side of the second sealing base 13 and/or the side of the second sealing body 14 contacts the inner side wall of the dust cover 15, or the side of the second sealing base 13 and/or the side of the second sealing body 14 does not contact the inner side wall of the dust cover 15. Specifically, both the side surface of the second seal substrate 13 and the side surface of the second seal body 14 preferably do not contact the inner side wall of the dust cover 15.
Therefore, it is different from the present embodiment.
Other features of this embodiment are the same as those of embodiment 1, and are not described again.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above-mentioned invention numbers are merely for description and do not represent the merits of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. A shock absorber having a dustproof function, comprising:
the dustproof cover is arranged on the outer side of the top end of the cylinder body assembly and sleeved on the piston rod;
the piston is sleeved at one end of the piston rod, the piston rod is used for driving the piston to movably penetrate through the cylinder body assembly, and the piston and the inner wall of the cylinder body assembly form dynamic seal for oil in the cylinder body assembly;
the multilayer oil blanket subassembly includes first oil blanket and second oil blanket, first oil blanket with the second oil blanket is all established on the piston rod, first oil blanket sets up in the top of cylinder body subassembly, the second oil blanket sets up the outside on cylinder body subassembly top just is located the shield below.
2. The shock absorber with a dust-proof function according to claim 1, wherein:
the second oil seal abuts against the outer side of the top end of the cylinder body assembly through the dustproof cover;
the dustproof cover is detachably covered on the second oil seal, or the dustproof cover is fixedly connected with the second oil seal and forms an integrated dustproof structure with the second oil seal.
3. The shock absorber with a dust-proof function according to claim 2, wherein:
the first oil seal comprises a first seal tongue, a first seal base and a first seal main body, wherein the first seal main body and the first seal tongue are arranged on the first seal base, and the first seal tongue is connected to the first seal main body;
the second oil seal comprises a second sealing tongue, a second sealing base and a second sealing main body, wherein the second sealing main body and the second sealing tongue are arranged on the second sealing base, and the second sealing tongue is connected to the second sealing main body;
the first sealing tongue and the second sealing tongue are sleeved on the piston rod.
4. The shock absorber with a dustproof function according to claim 3, wherein:
the top of the first sealing body is in contact with or not in contact with the inner wall of the top end of the cylinder assembly, the side of the first sealing substrate and/or the side of the first sealing body abuts the inner side wall of the cylinder assembly, or the side of the first sealing substrate and/or the side of the first sealing body does not abut the inner side wall of the cylinder assembly;
the bottom of the second sealing substrate is abutted against the outer wall of the top of the cylinder assembly, and the side face of the second sealing substrate and/or the side face of the second sealing main body are/is contacted with the inner side wall of the dust cover, or the side face of the second sealing substrate and/or the side face of the second sealing main body are/is not contacted with the inner side wall of the dust cover.
5. The shock absorber with a dust-proof function according to claim 2, wherein:
the first oil seal and the second oil seal are integrally formed sealing components;
the top of the first oil seal is in contact with or not in contact with the inner wall of the top end of the cylinder body assembly, and the side part of the first oil seal is in butt joint with or not in butt joint with the inner side wall of the cylinder body assembly;
the bottom of the second oil seal is in contact with the outer wall of the top of the cylinder body assembly, and the side part of the second oil seal is in contact with or not in contact with the inner side wall of the dustproof cover.
6. The shock absorber with a dust-proof function according to claim 2, wherein:
when the shield in the second oil blanket constitutes integral type dustproof construction, the shield contact the one end of piston rod outer wall and/or the shield contact the one end of second oil blanket includes the elastic component, the elastic component can be relative the removal of piston rod is elongated or is compressed.
7. The shock absorber with a dust-proof function according to claim 1, wherein:
the cross section of the dust cover comprises a circle or a polygon with a through hole at the center.
8. The shock absorber with a dust-proof function according to claim 1, wherein:
the oil cylinder further comprises an adjusting valve, the cylinder body assembly comprises an inner cylinder, a middle cylinder and an outer cylinder, the piston is positioned in the inner cylinder and forms dynamic seal for oil with the inner wall of the inner cylinder, and the dustproof cover is arranged on the outer side of the top end of the outer cylinder;
the inner cylinder is communicated with the middle cylinder, the middle cylinder is communicated with the outer cylinder, and the regulating valve is connected with the outer cylinder and the middle cylinder and is used for regulating the oil passing amount between the outer cylinder and the middle cylinder;
the bottom end of the inner cylinder is communicated or not communicated with the bottom end of the outer cylinder, the first oil seal is positioned at the top end of the inner cylinder and contacts with the inner side wall of the top end of the outer cylinder, and the second oil seal is positioned at the outer side of the top of the outer cylinder.
9. The shock absorber with a dust-proof function according to claim 8, wherein:
the guide device also comprises a guide device component and a bottom valve;
the guider component is arranged at the top end of the inner cylinder and sleeved on the piston rod, the side part of the guider component is abutted against the inner side wall of the outer cylinder, and the top part of the guider component is abutted against the bottom of the first oil seal;
the bottom valve is arranged at the bottom end of the outer cylinder, is connected with the bottom end of the inner cylinder and is used for opening or closing a passage between the bottom end of the inner cylinder and the bottom end of the outer cylinder.
10. The shock absorber with a dust-proof function according to claim 1, wherein:
the oil seal assembly comprises a rubber oil seal assembly or a polytetrafluoroethylene oil seal assembly;
the dust cover comprises a metal dust cover or a plastic dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121564811.6U CN216158174U (en) | 2021-07-08 | 2021-07-08 | Shock absorber with dustproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121564811.6U CN216158174U (en) | 2021-07-08 | 2021-07-08 | Shock absorber with dustproof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216158174U true CN216158174U (en) | 2022-04-01 |
Family
ID=80836222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121564811.6U Active CN216158174U (en) | 2021-07-08 | 2021-07-08 | Shock absorber with dustproof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216158174U (en) |
-
2021
- 2021-07-08 CN CN202121564811.6U patent/CN216158174U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104696420B (en) | frequency-sensitive shock absorber | |
| US8978845B2 (en) | Frequency/pressure sensitive shock absorber | |
| CN104482102B (en) | Locomotive vehicle oil hydraulic damper | |
| CN105202092A (en) | Driven type particle damping shock absorber for railway vehicle | |
| CN2775391Y (en) | Double piston double oil seal multiple gear automatic control inflating type automobile shock reducer | |
| CN107830098B (en) | Damper for pantograph and method for adjusting maximum damping force of stretching of damper | |
| CN110925343B (en) | Comfortable damping anti-bottom-touching shock absorber and motor tricycle | |
| CN216158174U (en) | Shock absorber with dustproof function | |
| CN203477164U (en) | Barrel type automobile shock absorber | |
| CN216200078U (en) | Shock absorber with dustproof function | |
| CN204403250U (en) | A kind of sensing frequency conversion vibration damper | |
| CN104500636A (en) | Sensing variable-frequency vibration absorber | |
| CN216200077U (en) | Governing valve and have its shock absorber | |
| KR101756419B1 (en) | Dust seal assembly structure for shock absorber | |
| CN105020323A (en) | Dust sealing structure assembly | |
| CN109281971B (en) | high-performance shock absorber | |
| CN2562003Y (en) | Hydraulic dampers | |
| CN202674137U (en) | Damper and excavator comprising damper | |
| CN202971726U (en) | Reliably sealed shock absorber for automobile | |
| CN212177744U (en) | Self-adaptive hydraulic buffer of shock absorber | |
| CN104074912A (en) | Dustproof automotive shock absorber | |
| CN109441990B (en) | Double-cylinder support type automobile shock absorber | |
| KR101724736B1 (en) | Shock absorber for cars | |
| CN217029779U (en) | Sealing guide structure of shock absorber | |
| CN205298379U (en) | A buffer construction for car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |