CN204221709U - A kind of pressure head of valve oil seal - Google Patents
A kind of pressure head of valve oil seal Download PDFInfo
- Publication number
- CN204221709U CN204221709U CN201420688496.1U CN201420688496U CN204221709U CN 204221709 U CN204221709 U CN 204221709U CN 201420688496 U CN201420688496 U CN 201420688496U CN 204221709 U CN204221709 U CN 204221709U
- Authority
- CN
- China
- Prior art keywords
- oil seal
- valve oil
- hole
- valve
- pressure head
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to technical field of automobile components, provides a kind of pressure head of valve oil seal, comprises depression bar and backstay, and described depression bar is provided with the through hole that diameter is less than valve oil seal external diameter; Described backstay comprises guide section and get thing section, and described guide section slides axially and is plugged in described through hole, described in get the endoporus of thing section through described valve oil seal, coaxially insert valve guide bushing, and described guide section clamps described valve oil seal.The utility model by backstay respectively with the coaxial setting of valve oil seal, backstay; ensure that and press-fit the coaxial of valve oil seal and valve guide bushing in process; avoid crooked, the trimming phenomenon that press-fit rear valve oil seal; protect valve oil seal; improve the sealing of valve guide bushing, ensure that the normal work of engine.
Description
Technical field
The utility model belongs to technical field of automobile parts, is specifically related to a kind of pressure head of valve oil seal.
Background technology
Valve oil seal is used for the sealing of engine cylinder cap air valve conduit, can prevent machine oil from entering air inlet-outlet pipe, prevent the mist of gasoline and air and discharging waste gas from leaking, prevent engine motor oil from entering combustion chamber, valve oil seal needs at high temperature to contact with gasoline and machine oil, and its assembly quality affects the performance of engine complete machine.Need after assembling to ensure that the centre bore of valve oil seal is coaxial with valve guide bushing, and valve oil seal and engine valve oil seal support compress.
Existing pressure head of valve oil seal, for circular bar shape, what comprise depression bar 101 and be slidably mounted on depression bar gets thing bar 102, get thing bar 102 and stretch out one end of depression bar through valve oil seal 103, and clamped, when press-fiting, will promote depression bar 101 to valve oil seal direction, depression bar 101 promotes valve oil seal 103 and is installed on valve guide bushing.
The positioner that existing pressure head of valve oil seal is apneustic between oil sealing and valve guide bushing, pressure head of valve oil seal is when press-fiting, owing to being only plane contact, there is error in operation, be difficult to ensure that valve oil seal and valve guide bushing coaxially press-fit, after press-fiting, find that there is through often that valve oil seal is crooked, the phenomenon of trimming, easily damage valve oil seal, cause valve guide bushing poorly sealed close, and then cause the quality problems such as engine gas leakage leakage of oil.
Utility model content
The purpose of this utility model is to provide a kind of pressure head of valve oil seal; coaxially arranged with valve oil seal, valve guide bushing respectively by backstay; ensure that and press-fit the coaxial of rear valve oil seal and valve guide bushing; protect valve oil seal; improve the sealing of valve guide bushing, ensure that the normal work of engine.
To achieve these goals, the utility model provides following technical scheme:
A kind of pressure head of valve oil seal, comprise depression bar and backstay, described depression bar is provided with the through hole that diameter is less than valve oil seal external diameter; Described backstay comprises guide section and get thing section, and described guide section slides axially and is plugged in described through hole, described in get the endoporus of thing section through described valve oil seal, coaxially insert valve guide bushing, and described guide section clamps described valve oil seal.
Preferably, described in get thing section and insert one section of described valve guide bushing for pyramidal structure, its cross section diminishes to the direction away from described guide section.
Preferably, gap is provided with between described guide section and described through hole.
Preferably, be provided with Hookean spring between described guide section and described through hole, described guide section is plugged in described Hookean spring.
Preferably, described depression bar is provided with chocking construction at the interlude near described valve oil seal, and described backstay is stopped at described through hole one end near described valve oil seal by described chocking construction.
Preferably, described chocking construction comprises is located at the shaft shoulder of described guide section away from described valve oil seal one end, with be located at the first step hole of described through hole away from described valve oil seal one end, the diameter of the described shaft shoulder is greater than the diameter of described through hole, the diameter in described first step hole is greater than the diameter of the described shaft shoulder, and the described shaft shoulder is overlapped in the end face of described first step hole near described valve oil seal.
Preferably, described first step hole is provided with position limiting structure away from one end of described valve oil seal, and described backstay is stopped at described through hole one end away from described valve oil seal by described position limiting structure.
Preferably, be provided with retracting spring between described position limiting structure and the described shaft shoulder, one end of described retracting spring is connected to described position limiting structure, and the other end is connected to the described shaft shoulder.
Preferably, described through hole is provided with the second step hole suitable with described valve oil seal near one end of described valve oil seal, and its axial dimension is less than the axial dimension of described valve oil seal, and radial dimension is greater than the radial dimension of described valve oil seal; Described valve oil seal is affixed on described second step hole near one end of described through hole.
Preferably, described depression bar is provided with protective jacket near the oil sealing section of described valve oil seal, and described protective jacket is set in the outer wall of described oil sealing section, and coated described valve oil seal.
The beneficial effects of the utility model are:
The utility model by backstay respectively with the coaxial setting of valve oil seal, backstay; ensure that and press-fit the coaxial of valve oil seal and valve guide bushing in process; avoid crooked, the trimming phenomenon that press-fit rear valve oil seal; protect valve oil seal; improve the sealing of valve guide bushing, ensure that the normal work of engine.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressure head of valve oil seal in prior art;
Fig. 2 is the structural representation of a kind of detailed description of the invention of pressure head of valve oil seal provided by the utility model;
Fig. 3 is the partial enlarged view at I place in Fig. 2.
Reference numeral:
In FIG:
101, depression bar, 102, get thing bar, 103, valve oil seal;
At Fig. 2-Fig. 3:
201, contiguous block, 202, gasket ring, 203, countersunk head plug screw, 204, depression bar, 205, retracting spring, 206, the shaft shoulder, 207, guide section, 208, valve oil seal, 209, get thing section, 210, valve guide bushing, 211, protective jacket, 212, second step hole, 213, holding screw, 214, through hole, 215, first step hole.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to Fig. 2-3, in a kind of detailed description of the invention, pressure head of valve oil seal provided by the utility model, comprises depression bar 204 and backstay, and depression bar 204 is provided with the through hole 214 that diameter is less than valve oil seal 208 external diameter; Backstay comprises guide section 207 and gets thing section 209, and guide section 207 slides axially and is plugged in through hole 214, gets the endoporus of thing section 209 through valve oil seal 208, coaxial insertion valve guide bushing 210, and guide section 207 clamps valve oil seal 208.
This structure by backstay respectively with the coaxial setting of valve oil seal 208, valve guide bushing 210; make to press-fit in process; ensure that the coaxial of valve oil seal 208 and valve guide bushing 210; avoid crooked, the trimming phenomenon that press-fit rear valve oil seal 208; protect valve oil seal 208; improve the sealing of valve guide bushing 210, ensure that the normal work of engine.
Get thing section 209 and insert one section of valve guide bushing 210 for pyramidal structure, its cross section diminishes to the direction away from described guide section.Pyramidal structure makes to get the centre bore that thing section 209 more easily inserts valve oil seal 208 and valve guide bushing 210, operates more convenient.Certainly, getting thing section 209 also can be direct rod shape, or other prism structure.
Gap is provided with between guide section 207 and through hole 214.This gap makes in valve oil seal 208 plug-in mounting process, and backstay and depression bar 204 can Relative Floatings, makes depression bar 204 can vertical depression, reduce to press down in process the resistance caused between backstay and depression bar 204, press-fit more smooth and easy, and structure is simple, processing cost is low.Certain guide section 207 also can be fitted with through hole 214, can increase the friction between depression bar 204 and backstay like this, add Radial resistant force therebetween, be not easy to press-fit.
Be provided with Hookean spring between guide section 207 and through hole 214, guide section 207 is plugged in Hookean spring.This structure both can provide the radial support of backstay axially-movable, can play again the return effect after axially-movable.Also can be other compressing tablet springs between certain guide section 207 and through hole 214, but compressing tablet spring can only play certain radial support, and during axially-movable, resistance be too large.
Guide section 207 and depression bar 204 also can be other floating structure, and such as ball floats, air floating, but these structures all more complicated, increase cost.
Depression bar 204 is provided with chocking construction at the interlude near valve oil seal 208, and backstay is stopped at through hole 214 one end near valve oil seal 208 by chocking construction.This structure can prevent from throwing off near one end of valve oil seal 208 and depression bar 204 during backstay axially-movable.
Preferably, chocking construction comprises is located at the shaft shoulder 206 of guide section 207 away from valve oil seal 208 one end, with be located at the first step hole 215 of through hole 214 away from valve oil seal 208 one end, the diameter of the shaft shoulder 206 is greater than the diameter of through hole 214, the diameter in first step hole 215 is greater than the diameter of the shaft shoulder 206, and the shaft shoulder 206 is overlapped in the end face of first step hole 215 near valve oil seal 208.This structure does not need to increase other parts can realize locking function, and structure is simple, convenient processing and assembling.
Certain chocking construction also can, for being installed on the screw of depression bar 204 near valve oil seal 208 interlude, make screw extend into the first through hole 214, to realize stop.Bolt structure needs at depression bar side-wall hole, processing difficulties.Chocking construction also can be taper hole and conical structure, through hole 214 is provided with taper hole away from valve oil seal 208 one end, this taper hole diminishes near valve oil seal 208 orient diameter, and guide section 207 is provided with the conical structure suitable with taper hole away from valve oil seal 208 one end, and circular cone slips into taper hole and realizes stop.Taper hole is compared with cylinder with circular hole with conical structure, is also inconvenient to process.
First step hole 215 is provided with position limiting structure away from one end of valve oil seal 208, and backstay is stopped at through hole 214 one end away from valve oil seal 208 by position limiting structure.This structure can prevent from skidding off depression bar 204 one end away from valve oil seal 208 during backstay axially-movable.
Preferred position limiting structure comprises countersunk head plug screw 203 and the screwed hole on depression bar 204, and first step hole 215 is provided with the internal thread suitable with countersunk head plug screw 203 away from one end of valve oil seal 208, and countersunk head plug screw 203 is installed on first step hole 215 by internal thread.This structure is simple, is convenient to processing and assembling, and has enough intensity.
Certainly, position limiting structure also can, for being installed on the screw of depression bar 204 away from valve oil seal 208, make screw extend into first step hole 215, spacing to realize.Bolt structure needs at depression bar side-wall hole, processing difficulties.Position limiting structure also can be taper hole and conical structure, taper hole is established away from valve oil seal 208 one end in first step hole 215, this taper hole diminishes to the orient diameter away from valve oil seal 208, guide section 207 is provided with the conical structure suitable with taper hole away from valve oil seal 208 one end, and circular cone slips into taper hole and realizes stop.Taper hole is compared with cylinder with circular hole with conical structure, is also inconvenient to process.
Particularly, be provided with retracting spring 205 between position limiting structure and the shaft shoulder 206, one end of retracting spring 205 is connected to position limiting structure, and the other end is connected to the shaft shoulder 206.This structure makes to press-fit rear backstay and more easily gets back to position to be press-fited, and is convenient to the control of pressure assembling force.
Through hole 214 is provided with the second step hole 212 suitable with valve oil seal 208 near one end of valve oil seal 208, and its axial dimension is less than the axial dimension of valve oil seal 208, and radial dimension is greater than the radial dimension of valve oil seal 208; Valve oil seal 208 is affixed on one end near through hole 214, second step hole 212.This structure is used for splendid attire valve oil seal 208, contacts after making it clamp with depression bar 204, is convenient to follow-uply to press-fit.The radial dimension in second step hole 212 is greater than the radial dimension of valve oil seal 208, and the resistance that when can avoid floating between depression bar 204 and backstay in piling process, valve oil seal applies, reduces pressure assembling force.
Further, depression bar 204 is provided with protective jacket 211 near the oil sealing section of valve oil seal 208, and protective jacket 211 is set in the outer wall of oil sealing section, and coated valve oil seal 208.This structure can protect valve oil seal 208 press-fiting in process.
The structure of protective jacket 211 can be cylindric, with suitable with valve oil seal 208, and is fixed on depression bar 204 one end near valve oil seal by holding screw.
Depression bar 204 is connected with contiguous block 201 away from one end of valve oil seal 208, and the other end of contiguous block 201 is connected to and press-fits power source.This structure by power source press-fit make to press-fit more convenient.Contiguous block 201 and the connection of depression bar 204 can be weld, rivet, or are threaded, and are preferably threaded, make processing and assemble more convenient.
Gasket ring 202 is also provided with, to make connection more tight between contiguous block 201 and depression bar 204.
Although the utility model is described in conjunction with above embodiment, but the utility model is not limited to above-described embodiment, and only by the restriction of claim, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present utility model and scope.
Claims (10)
1. a pressure head of valve oil seal, comprises depression bar and backstay, it is characterized in that, described depression bar is provided with the through hole that diameter is less than valve oil seal external diameter; Described backstay comprises guide section and get thing section, and described guide section slides axially and is plugged in described through hole, described in get the endoporus of thing section through described valve oil seal, coaxially insert valve guide bushing, and described guide section clamps described valve oil seal.
2. pressure head of valve oil seal according to claim 1, is characterized in that, described in get thing section and insert one section of described valve guide bushing for pyramidal structure, its cross section diminishes to the direction away from described guide section.
3. pressure head of valve oil seal according to claim 1 and 2, is characterized in that, is provided with gap between described guide section and described through hole.
4. pressure head of valve oil seal according to claim 3, is characterized in that, is provided with Hookean spring between described guide section and described through hole, and described guide section is plugged in described Hookean spring.
5. the pressure head of valve oil seal according to any one of claim 1 or 2, it is characterized in that, described depression bar is provided with chocking construction at the interlude near described valve oil seal, and described backstay is stopped at described through hole one end near described valve oil seal by described chocking construction.
6. pressure head of valve oil seal according to claim 5, it is characterized in that, described chocking construction comprises is located at the shaft shoulder of described guide section away from described valve oil seal one end, with be located at the first step hole of described through hole away from described valve oil seal one end, the diameter of the described shaft shoulder is greater than the diameter of described through hole, the diameter in described first step hole is greater than the diameter of the described shaft shoulder, and the described shaft shoulder is overlapped in the end face of described first step hole near described valve oil seal.
7. be the pressure head of valve oil seal described in any one according to claim 6, it is characterized in that, described first step hole is provided with position limiting structure away from one end of described valve oil seal, and described backstay is stopped at described through hole one end away from described valve oil seal by described position limiting structure.
8. pressure head of valve oil seal according to claim 7, is characterized in that, is provided with retracting spring between described position limiting structure and the described shaft shoulder, and one end of described retracting spring is connected to described position limiting structure, and the other end is connected to the described shaft shoulder.
9. the pressure head of valve oil seal according to any one of claim 1,2,4,6,7,8, it is characterized in that, described through hole is provided with the second step hole suitable with described valve oil seal near one end of described valve oil seal, and its axial dimension is less than the axial dimension of described valve oil seal, radial dimension is greater than the radial dimension of described valve oil seal; Described valve oil seal is affixed on described second step hole near one end of described through hole.
10. the pressure head of valve oil seal according to any one of claim 1,2,4,6,7,8, it is characterized in that, described depression bar is provided with protective jacket near the oil sealing section of described valve oil seal, and described protective jacket is set in the outer wall of described oil sealing section, and coated described valve oil seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688496.1U CN204221709U (en) | 2014-11-17 | 2014-11-17 | A kind of pressure head of valve oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688496.1U CN204221709U (en) | 2014-11-17 | 2014-11-17 | A kind of pressure head of valve oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204221709U true CN204221709U (en) | 2015-03-25 |
Family
ID=52919849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420688496.1U Expired - Fee Related CN204221709U (en) | 2014-11-17 | 2014-11-17 | A kind of pressure head of valve oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204221709U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108701A (en) * | 2015-09-09 | 2015-12-02 | 温州瑞明工业股份有限公司 | Press-fitting device of valve guide pipe of cylinder cover |
| CN106501896A (en) * | 2016-12-28 | 2017-03-15 | 飞迅科技(苏州)有限公司 | A kind of slotting light-guiding pillar drift |
| CN107457557A (en) * | 2017-08-02 | 2017-12-12 | 合肥江淮朝柴动力有限公司 | A kind of valve oil seal press-fitting tool |
| CN110509318A (en) * | 2019-09-23 | 2019-11-29 | 中国工程物理研究院化工材料研究所 | A kind of explosive column overlap is repaired except device and is repaired except method |
-
2014
- 2014-11-17 CN CN201420688496.1U patent/CN204221709U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108701A (en) * | 2015-09-09 | 2015-12-02 | 温州瑞明工业股份有限公司 | Press-fitting device of valve guide pipe of cylinder cover |
| CN106501896A (en) * | 2016-12-28 | 2017-03-15 | 飞迅科技(苏州)有限公司 | A kind of slotting light-guiding pillar drift |
| CN106501896B (en) * | 2016-12-28 | 2023-08-25 | 飞迅科技(苏州)有限公司 | Plug-in light guide column punch |
| CN107457557A (en) * | 2017-08-02 | 2017-12-12 | 合肥江淮朝柴动力有限公司 | A kind of valve oil seal press-fitting tool |
| CN110509318A (en) * | 2019-09-23 | 2019-11-29 | 中国工程物理研究院化工材料研究所 | A kind of explosive column overlap is repaired except device and is repaired except method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| 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: 20150325 Termination date: 20191117 |