CN207687253U - A kind of anti-oil leakage damper - Google Patents
A kind of anti-oil leakage damper Download PDFInfo
- Publication number
- CN207687253U CN207687253U CN201721506930.XU CN201721506930U CN207687253U CN 207687253 U CN207687253 U CN 207687253U CN 201721506930 U CN201721506930 U CN 201721506930U CN 207687253 U CN207687253 U CN 207687253U
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- China
- Prior art keywords
- handle pipe
- bottom cylinder
- damping
- damper
- cylinder
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Abstract
The utility model discloses a kind of anti-oil leakage dampers, belong to damper technical field.The damper of the utility model, including bottom cylinder, handle pipe, piston rod and damping piston, one end of handle pipe is sheathed in the cylinder of bottom, the bottom of bottom cylinder is fixed in one end of piston rod, the other end sealing of piston rod is arranged in handle pipe, and be connected with the damping piston in handle pipe, the bottom of bottom cylinder is equipped with the lower seals of sealing bottom cylinder, and the top of bottom cylinder is equipped with the top seal coordinated with the handle seal of tube；The handle pipe spring being compressed between damping piston and handle tube top portion is equipped in the rodless cavity of handle pipe, the damping oil of height residing for damping piston when being full of in handle pipe or pushing range higher than damper equipped with oil mass.The utility model not only fundamentally solves the problems, such as shock-absorber cylinder oil leak, but also effectively prevents the problem of handle pipe hits bottom cylinder；Meanwhile shock absorber structure is simpler, the building block selection of damper is more flexible, and cost of manufacture is cheaper.
Description
Technical field
The utility model is related to a kind of dampers, more specifically to a kind of anti-oil leakage damper.
Background technology
Currently, the use of damper is very extensive, type is also more, is broadly divided into spring type shock absorber, spring-air
Damp type damper, hydraulic damping formula damper, air over type shock absorber for front fork and inflated with nitrogen hydraulic damper etc..Fluid power
Damp type damper has preferable damping effect, compared to the air-pressure dampings dampers such as air or nitrogen, hydraulic damping formula damping
The damping oil of device is not easy to leak, relatively low to sealing performance requirement, and sealing structure is also relatively more simple, and cost of manufacture is lower
It is honest and clean.
Hydraulic damping formula damper usually requires cooperation spring and uses, to reach more preferably damping.Currently, usually existing
Spring is arranged in the outside of hydraulic damping damper, and even now installation is more convenient, but spring pocket is on the outside of damper, spring
Size is larger, and required cost is higher, and spring is exposed to outside, is easy to be corroded by external environment, increases maintenance cost.
In addition, existing hydraulic damping formula damper is mainly made of handle pipe, bottom cylinder and piston rod etc., handle pipe lower end is located at bottom
In cylinder upper end, piston rod upper end is located in handle pipe lower end, and one end of piston rod is arranged with damper valves, the other end of piston rod
End face is connected by fastening bolt with bottom cylinder；Hydraulic piston rod intracavitary is equipped with damping oil.When motorcycle vibration absorber works, piston
The Impact direction of bar can constantly change because of vibrations, and piston rod is connected with bottom cylinder by fastening bolt, in vibrations, tightly
Gap will occur between fixing bolt and bottom cylinder, cause oil leak.It is existing in order to solve the Leakage of hydraulic damping formula damper
Way be to install " O " type rubber seal or copper backing additional between fastening bolt and bottom cylinder, it is close using " O " type rubber seal
Envelope, since " O " type rubber seal has elasticity, although having certain oil-leakage-prevention effect, it makes fastening bolt and bottom cylinder
It cannot contact, piston rod fastens loosely, still will appear oil leakage phenomenon during vibrations, moreover, using " O " type rubber seal
After circle sealing, need to smear fluid sealant in fastening bolt, when needing dismounting, fastening bolt is generally difficult to dismantle, and generally requires use
Fire baking bottom cylinder, makes " O " type rubber seal and fluid sealant softening and shedding, but can lead to the damage of bottom cylinder again in this way；Using copper
Gasket seal, in assembly, the torsional forces of fastening bolt can force copper backing deformation to be sealed, and need being sealed
Face is smooth bright and clean when processing, and copper is flexible material, may make copper backing deformation inadequate after torsional forces is too small, lead to damper
Oil leak.In actual use, above two sealing means do not fully achieve damper sealing, can not solve to subtract from the root cause
The problem of shaking device oil leak.
Invention content
1. utility model technical problems to be solved
The purpose of the utility model is to overcome existing damper there are easy oil leakage, it is of high cost the deficiencies of, provide a kind of anti-
Oil leak damper, using the technical solution of the utility model, the internal air cavity for forming sealing of bottom cylinder, be equipped in handle pipe damping oil and
Spring not only fundamentally solves the problems, such as shock-absorber cylinder oil leak, but also effectively prevents the problem of handle pipe hits bottom cylinder；
Meanwhile shock absorber structure is simpler, the building block selection of damper is more flexible, and cost of manufacture is cheaper.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model is：
A kind of anti-oil leakage damper of the utility model, including bottom cylinder, handle pipe, piston rod and damping piston, the handle
One end of pipe is sheathed in the cylinder of bottom, and the bottom of bottom cylinder is fixed in one end of the piston rod, and the other end sealing of piston rod is worn
It is connected in handle pipe, and with the damping piston in handle pipe, the bottom of bottom cylinder is equipped with the bottom of sealing bottom cylinder
The top of sealing element, bottom cylinder is equipped with the top seal coordinated with the handle seal of tube, makes the internal air cavity for forming sealing of bottom cylinder；It is described
Handle pipe rodless cavity in be equipped with and be compressed in handle pipe spring between damping piston and handle tube top portion, be full of in the handle pipe or
The damping oil of height residing for damping piston when pushing range higher than damper equipped with oil mass.
Further, it is additionally provided with damping spring in the rod chamber of the handle pipe.
Further, the piston rod uses solid bar member or surface treated hollow rod.
Further, bottom cylinder is equipped with the air inflation nozzle or gas cylinder of connection air cavity.
Further, bottom cylinder uses aluminium alloy integrated formed structure or Welded structure.
3. advantageous effect
It is had the advantages that compared with existing known technology using technical solution provided by the utility model：
(1) a kind of anti-oil leakage damper of the utility model, the bottom of bottom cylinder are equipped with the lower seals of sealing bottom cylinder,
The top of bottom cylinder is equipped with the top seal coordinated with the handle seal of tube, makes the internal air cavity for forming sealing of bottom cylinder；Handle pipe without bar
Intracavitary is equipped with the handle pipe spring being compressed between damping piston and handle tube top portion, is full of in handle pipe or is higher than damper equipped with oil mass
The damping oil of height residing for damping piston when pushing range；Not only fundamentally solve asking for shock-absorber cylinder oil leak
Topic, and effectively prevent the problem of handle pipe hits bottom cylinder；Meanwhile good damping effect is all had when damper compression and rebound
Fruit, damping effect protrude；
(2) a kind of anti-oil leakage damper of the utility model is additionally provided with damping spring in the rod chamber of handle pipe, improves
The damping force and stability of damper, and spring is set to inside damper, spring sizes are small, it is at low cost, avoid spring
Corroded by external environment, reduces the maintenance cost of damper；
(3) a kind of anti-oil leakage damper of the utility model, piston rod use solid bar member or surface treated sky
Core bar part, bottom cylinder are equipped with the air inflation nozzle or gas cylinder of connection air cavity, and bottom cylinder uses aluminium alloy integrated formed structure or aluminum alloy welding
Binding structure；Shock absorber structure is simpler, and the building block selection of damper is more flexible, and cost of manufacture is cheaper, improves
The cost performance of damper.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of anti-oil leakage damper of the utility model embodiment 1；
Fig. 2 is a kind of structural schematic diagram of anti-oil leakage damper of the utility model embodiment 2.
Label declaration in schematic diagram：
1, bottom cylinder；1-1, lower seals；1-2, top seal；2, handle pipe；2-1, handle pipe spring；2-2, damping oil；
2-3, damping spring；2-4, guide part；2-5, handle seals；3, piston rod；3-1, sealing block；4, damping piston.
Specific implementation mode
To further appreciate that the content of the utility model, the utility model is described in detail in conjunction with attached drawing.
In conjunction with shown in Fig. 1 and Fig. 2, a kind of anti-oil leakage damper of the utility model, including bottom cylinder 1, handle pipe 2, piston rod 3
It is sheathed in bottom cylinder 1 with one end of damping piston 4, handle pipe 2, the bottom of bottom cylinder 1 is fixed in one end of piston rod 3, piston rod 3
Other end sealing is arranged in handle pipe 2, and is connected with the damping piston 4 in handle pipe 2, and the bottom of bottom cylinder 1 is equipped with sealing
The lower seals 1-1 of bottom cylinder 1, the top of bottom cylinder 1 are equipped with the top seal 1-2 with the sealing cooperation of handle pipe 2, make in bottom cylinder 1
Portion forms the air cavity of sealing；The handle pipe spring being compressed between 2 top of damping piston 4 and handle pipe is equipped in the rodless cavity of handle pipe 2
2-1 is additionally provided with damping spring 2-3 in the rod chamber of handle pipe 2, is full of or is pushed higher than damper equipped with oil mass maximum in handle pipe 2
The damping oil 2-2 of height residing for damping piston 4 when stroke.A kind of anti-oil leakage damper of the utility model, bottom cylinder 1 are interior without damping
Oil, thus fundamentally solve the problems, such as bottom cylinder 1 and 3 coupling part poor sealing of piston rod and oil leak, and inside bottom cylinder 1
The air cavity for forming sealing, when work, handle pipe 2 pushes the air (or the gas mediums such as nitrogen) in compression bottom cylinder 1, so as to avoid
Handle pipe 2 hits the problem of bottom 1 bottom of cylinder, and damping effect protrudes.
With reference to embodiment, the utility model will be further described.
Embodiment 1
As shown in Figure 1, a kind of anti-oil leakage damper of the present embodiment, including bottom cylinder 1, handle pipe 2, piston rod 3 and damping are lived
Plug 4, handle pipe 2 it is closed at both ends, one end of handle pipe 2 is sheathed in bottom cylinder 1, and the bottom of bottom cylinder 1 is fixed in one end of piston rod 3,
The other end sealing of piston rod 3 is arranged in handle pipe 2, and is connected with the damping piston 4 in handle pipe 2, further, living
Stopper rod 3 is specifically connected using hanging bolt with bottom cylinder 1, and handle pipe 2 is equipped with handle seals with 3 matched one end of piston rod
2-5, the both sides of handle seals 2-5 be also respectively arranged on 3 matched guide part 2-4 of piston rod, handle pipe 2 and bottom cylinder 1 between
Gap coordinates, and guide part can also be arranged between handle pipe 2 and bottom cylinder 1；The concrete structure and operation principle of damping piston 4 can be found in patent
Numbers 201521134991.9, a kind of entitled " gas spring damping shock absorber " or the patent No. 201620335073.0 is entitled
Damping piston in " a kind of modified air-pressure damping piston and apply its air-pressure damping damper ", not according to resisting medium
Together, the damping hole of damping piston is adaptively adjusted.Unlike the prior art, the bottom of bottom cylinder 1 is equipped with sealing
The lower seals 1-1 of bottom cylinder 1, the top of bottom cylinder 1 are equipped with the top seal 1-2 with the sealing cooperation of handle pipe 2, make in bottom cylinder 1
Portion forms the air cavity of sealing；The handle pipe spring being compressed between 2 top of damping piston 4 and handle pipe is equipped in the rodless cavity of handle pipe 2
2-1, handle pipe 2 is interior to be full of damping oil 2-2.When work, when handle pipe 2 pushes, damping piston 4 is generated with the damping oil 2-2 in handle pipe 2
Hydraulic damping acts on, and the 2-1 compressions of handle pipe spring generate spring damping effect, while the air cavity in bottom cylinder 1 compresses to form air pressure resistance
Buddhist nun's power keeps damper compression damping effect more preferable；When handle pipe 2 is sprung back, the rebound effect of handle pipe spring 2-1 makes damper return
Bullet, damping piston 4 generate opposite hydraulic damping power with the damping oil 2-2 in handle pipe 2, and handle pipe spring 2-1 is allowed slowly to spring back, full
The soft or hard requirement of foot damper compression and rebound, improves the damping comfort of damper.
In addition, in the present embodiment, damping spring 2-3 is additionally provided in the rod chamber of handle pipe 2, damping spring 2-3 is arranged
In the damping force and stability that on piston rod 3, improve damper, and spring is set to inside damper, spring sizes are small,
It is at low cost, avoid spring and corroded by external environment, reduce the maintenance cost of damper.Piston rod 3 uses solid bar member, with
Existing finished product piston rod is identical；Bottom cylinder 1 is equipped with the air inflation nozzle of connection air cavity, convenient for bottom 1 air cavity tonifying Qi of cylinder；Bottom cylinder 1 uses aluminium
Alloy integrated formed structure is also identical as existing finished product bottom cylinder；Dust cover knot is had both on top seal 1-2 on bottom cylinder 1
Structure can effectively prevent dust to enter.Simpler with structure, damper building block selection is more flexible, is fabricated to
The advantages that this cheaper, raising damper cost performance.
Embodiment 2
As shown in Fig. 2, a kind of anti-oil leakage damper of the present embodiment, with embodiment 1, difference exists basic structure
In：In the present embodiment, height residing for damping piston 4 subtracts when pushing range higher than damper equipped with oil mass in handle pipe 2
Oil 2-2 is shaken, damping oil reduces the dosage of damping oil without being full of.Piston rod 3 uses surface treated hollow rod, empty
It is equipped with the sealing block 3-1 for blocking damping oil in core bar part, damper is made in the case where not reducing piston rod intensity
Quality is lighter.Bottom cylinder 1 is equipped with the gas cylinder of connection air cavity, ensure that bottom 1 air cavity of cylinder has good air-pressure damping.Bottom cylinder 1 is adopted
With Welded structure, have that the production is simple and convenient, production efficiency height, low manufacture cost, product quality stabilization, service life
The advantages that long.The concrete structure of Welded bottom cylinder 1 can be found in the number of patent application 201720854137.2 of applicant's submission,
The patent application case of entitled " a kind of damper Integral aluminum alloy welding aluminum barrel ".
A kind of anti-oil leakage damper of the utility model, bottom cylinder is interior without damping oil, fundamentally solves bottom cylinder and lives
Stopper rod coupling part poor sealing and the problem of oil leak, and the internal air cavity for forming sealing of bottom cylinder, when work, handle pipe pushes pressure
Air in the cylinder of contracting bottom avoids the problem of handle pipe hits bottom cylinder bottom；Meanwhile shock absorber structure is simpler, damper
Building block selection is more flexible, and cost of manufacture is cheaper.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in also be the utility model one of embodiment, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, without creatively designing
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (5)
1. a kind of anti-oil leakage damper, including bottom cylinder (1), handle pipe (2), piston rod (3) and damping piston (4), the handle pipe
(2) one end is sheathed in bottom cylinder (1), and the bottom of bottom cylinder (1) is fixed in one end of the piston rod (3), piston rod (3)
Other end sealing is arranged in handle pipe (2), and is connected with the damping piston (4) in handle pipe (2), it is characterised in that：Institute
The bottom for the bottom cylinder (1) stated is equipped with the lower seals (1-1) of sealing bottom cylinder (1), and the top of bottom cylinder (1) is equipped with and handle pipe (2)
The top seal (1-2) for sealing cooperation makes the air cavity that sealing is formed inside bottom cylinder (1)；In the rodless cavity of the handle pipe (2)
Equipped with the handle pipe spring (2-1) between being compressed at the top of damping piston (4) and handle pipe (2), it is full of or sets in the handle pipe (2)
The damping oil (2-2) of height residing for damping piston (4) when thering is oil mass to push range higher than damper.
2. a kind of anti-oil leakage damper according to claim 1, it is characterised in that：In the rod chamber of the handle pipe (2)
It is additionally provided with damping spring (2-3).
3. a kind of anti-oil leakage damper according to claim 1 or 2, it is characterised in that：The piston rod (3) is using real
Core bar part or surface treated hollow rod.
4. a kind of anti-oil leakage damper according to claim 3, it is characterised in that：The bottom cylinder (1) is equipped with connection
The air inflation nozzle or gas cylinder of air cavity.
5. a kind of anti-oil leakage damper according to claim 4, it is characterised in that：The bottom cylinder (1) uses aluminium alloy
Integrated formed structure or Welded structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721506930.XU CN207687253U (en) | 2017-11-13 | 2017-11-13 | A kind of anti-oil leakage damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721506930.XU CN207687253U (en) | 2017-11-13 | 2017-11-13 | A kind of anti-oil leakage damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207687253U true CN207687253U (en) | 2018-08-03 |
Family
ID=62989221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721506930.XU Expired - Fee Related CN207687253U (en) | 2017-11-13 | 2017-11-13 | A kind of anti-oil leakage damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207687253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319145A (en) * | 2019-08-12 | 2019-10-11 | 常州市一上电动车辆配件有限公司 | A kind of good hydraulic damper of damping and its hydraulic damping system |
-
2017
- 2017-11-13 CN CN201721506930.XU patent/CN207687253U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319145A (en) * | 2019-08-12 | 2019-10-11 | 常州市一上电动车辆配件有限公司 | A kind of good hydraulic damper of damping and its hydraulic damping system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20211113 |