CN204283542U - A kind of engine valve guide - Google Patents
A kind of engine valve guide Download PDFInfo
- Publication number
- CN204283542U CN204283542U CN201420820679.4U CN201420820679U CN204283542U CN 204283542 U CN204283542 U CN 204283542U CN 201420820679 U CN201420820679 U CN 201420820679U CN 204283542 U CN204283542 U CN 204283542U
- Authority
- CN
- China
- Prior art keywords
- catheter tube
- thread groove
- endoporus
- handed thread
- hole wall
- 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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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model discloses a kind of engine valve guide, comprise catheter tube, the endoporus be slidably matched with valve stem is provided with in described catheter tube, described catheter tube one end is provided with the chamfering of increasing, the other end is provided with shoulder, and described endoporus hole wall is provided with double end right-handed thread groove, described double end right-handed thread groove from described catheter tube one end to the described catheter tube the other end, be covered with whole endoporus hole wall, described double end right-handed thread groove bottom is provided with rounding off.The utility model has scientific and reasonable for structure, long service life, oil storage effect and high lubricating effect feature.
Description
Technical field
The utility model relates to a kind of valve guide bushing, specifically a kind of engine valve guide, belongs to mechanical parts technical field of improvement.
Background technique
Valve guide bushing, as the key components and parts in cylinder cap assembly, provides valve motion to lead and lubrication.Conventional engine valve catheter tube inner hole wall is smooth setting mostly, lubricant oil can not be stored, valve guide bushing at high temperature works, its endoporus will produce distortion to a certain degree with the valve stem be arranged in endoporus, the surface friction drag of valve stem and endoporus is caused to strengthen, thus harmful effect is caused to the operation of motor, for overcoming this situation, set out some valve guide bushings in the market, guide pipe inner hole wall arranges the oil groove that the degree of depth differs, as existing china national practical new-type patent, the patent No. is the engine valve guide bush of 201220173873.9, guide pipe inner hole wall arranges the oil groove that the degree of depth differs, and be also provided with axial limiting face simultaneously, although improve the bulk strength of engine valve guide to a certain extent, provide good lubrication effect, but because the oil groove arranged parallels with catheter tube central axis, and the oil groove arranged is not covered with whole catheter tube inner hole wall, overall oil storage effect and lubrication effect can't meet market demand.
Model utility content
For the problems referred to above, the problem that the utility model quasi-solution is determined is to provide a kind of engine valve guide of scientific and reasonable for structure, long service life, oil storage effect and high lubricating effect.
For achieving the above object, the utility model is by the following technical solutions: a kind of engine valve guide, comprise catheter tube, the endoporus be slidably matched with valve stem is provided with in described catheter tube, described catheter tube one end is provided with the chamfering of increasing, and the other end is provided with shoulder, and described endoporus hole wall is provided with double end right-handed thread groove, described double end right-handed thread groove to the described catheter tube the other end, is covered with whole endoporus hole wall from described catheter tube one end.
As preferably, described double end right-handed thread groove bottom is provided with rounding off.
Effective achievement of the present utility model: the utility model is scientific and reasonable for structure, catheter tube one end is provided with the chamfering of increasing on the one hand, be convenient to be arranged on cylinder cover, the catheter tube the other end is provided with shoulder, be convenient to mounting O-shaped seal ring, good sealing effect, endoporus hole wall is provided with double end right-handed thread groove on the other hand, double end right-handed thread groove from catheter tube one end to the catheter tube the other end, be covered with whole endoporus hole wall, and double end right-handed thread groove bottom is provided with rounding off, while guarantee catheter tube bulk strength, its oil storage effect and lubrication effect are improved greatly, the surface friction drag of effective reduction valve stem and endoporus, increase the service life.
In sum, the utility model has scientific and reasonable for structure, long service life, oil storage effect and high lubricating effect feature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-catheter tube, 2-endoporus, 3-chamfering, 4-shoulder, 5-double end right-handed thread groove.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the present embodiment, clear, complete description is carried out to the technological scheme in the utility model embodiment.
As shown in Figure 1, the utility model discloses a kind of engine valve guide, comprise catheter tube 1, be provided with the endoporus 2 be slidably matched with valve stem in catheter tube 1, catheter tube 1 one end is provided with the chamfering 3 of increasing, and the other end is provided with shoulder 4, endoporus 2 hole wall is provided with double end right-handed thread groove 5, double end right-handed thread groove 5 to catheter tube 1 the other end from catheter tube 1 one end, is covered with whole endoporus 2 hole wall, is provided with rounding off bottom double end right-handed thread groove 5.
The utility model is scientific and reasonable for structure, catheter tube 1 one end is provided with the chamfering 3 of increasing on the one hand, be convenient to be arranged on cylinder cover, catheter tube 1 the other end is provided with shoulder 4, be convenient to mounting O-shaped seal ring, good sealing effect, endoporus 2 hole wall is provided with double end right-handed thread groove 5 on the other hand, double end right-handed thread groove 5 from catheter tube 1 one end to catheter tube 1 the other end, be covered with whole endoporus 2 hole wall, and be provided with rounding off bottom double end right-handed thread groove 5, while guarantee catheter tube 1 bulk strength, its oil storage effect and lubrication effect are improved greatly, the surface friction drag of effective reduction valve stem and endoporus 2, increase the service life.
Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (2)
1. an engine valve guide, comprise catheter tube (1), the endoporus (2) be slidably matched with valve stem is provided with in described catheter tube (1), it is characterized in that: described catheter tube (1) one end is provided with the chamfering (3) of increasing, the other end is provided with shoulder (4), described endoporus (2) hole wall is provided with double end right-handed thread groove (5), described double end right-handed thread groove (5) to described catheter tube (1) the other end, is covered with whole endoporus (2) hole wall from described catheter tube (1) one end.
2. engine valve guide according to claim 1, is characterized in that: described double end right-handed thread groove (5) bottom is provided with rounding off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820679.4U CN204283542U (en) | 2014-12-09 | 2014-12-09 | A kind of engine valve guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820679.4U CN204283542U (en) | 2014-12-09 | 2014-12-09 | A kind of engine valve guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283542U true CN204283542U (en) | 2015-04-22 |
Family
ID=52866712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420820679.4U Expired - Fee Related CN204283542U (en) | 2014-12-09 | 2014-12-09 | A kind of engine valve guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870050A (en) * | 2017-03-30 | 2017-06-20 | 广西玉柴机器股份有限公司 | Valve guide bushing |
-
2014
- 2014-12-09 CN CN201420820679.4U patent/CN204283542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870050A (en) * | 2017-03-30 | 2017-06-20 | 广西玉柴机器股份有限公司 | Valve guide bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312352 Shangyu Economic Development Zone, Zhejiang Patentee after: Shaoxing City, Shangyu Chunhui internal combustion engine fittings Company Limited Address before: 312352 Shangyu Economic Development Zone, Zhejiang Patentee before: Shangyu Internal-combustion Accessories 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: 20150422 Termination date: 20181209 |