CN202673939U - Hollow bolt - Google Patents
Hollow bolt Download PDFInfo
- Publication number
- CN202673939U CN202673939U CN 201220319477 CN201220319477U CN202673939U CN 202673939 U CN202673939 U CN 202673939U CN 201220319477 CN201220319477 CN 201220319477 CN 201220319477 U CN201220319477 U CN 201220319477U CN 202673939 U CN202673939 U CN 202673939U
- Authority
- CN
- China
- Prior art keywords
- hole
- screw rod
- hollow bolt
- bolt
- radial direction
- 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
Links
Abstract
The utility model discloses a hollow bolt. The hollow bolt comprises a bolt head and a bolt rod, wherein a channel is arranged on the bolt rod along an axial direction; a radial through hole is arranged at the upper part of the bolt rod; the radial through hole is communicated with the channel, and a filter net is arranged at the position of an opening of the radial through hole to cover the opening. The hollow bolt can prevent an impurity in lubricating oil from entering into an oil duct, and avoids blocking of an oil way, and the filter net is convenient to replace and clean.
Description
Technical field
The utility model relates to bolt, is specifically related to a kind of hollow bolt.
Background technique
At present, oneself hollow bolt be widely used on motor, is used for being connected between oil pipe and the component.Existing hollow bolt comprises bolt head and screw rod, offers vertically passage on screw rod, and the top of screw rod offers radial direction through hole, and this radial direction through hole is connected with described passage, and the bottom of screw rod is provided with screw thread.Because existing hollow bolt is without filtrating equipment, the impurity in the lubricant oil directly enters the engine lubrication oil duct through hollow bolt, is easy to make oil circuit to stop up, and causes motor normally to move.Particularly for the VVT motor, stop up in order to prevent the VVT oil circuit, filter screen is set in oil duct usually, because filter screen is arranged on the inside of oil duct, Quick-detachable cleaning not when filter screen stops up.
Summary of the invention
The purpose of this utility model provides a kind of hollow bolt, enters the engine lubrication oil duct to avoid the impurity in the lubricant oil, and is convenient to the cleaning of filter screen.
Hollow bolt described in the utility model, comprise bolt head and screw rod, on screw rod, offer vertically passage, the top of screw rod offers radial direction through hole, and this radial direction through hole is connected with described passage, the bottom of screw rod is provided with screw thread, and the position, aperture of described radial direction through hole is provided with filter screen described aperture is covered.
Screw rod is the plane in the position, aperture of radial direction through hole, and described filter screen is fixed on this plane.
During work, lubricant oil enters through the radial direction through hole of filter screen by screw rod top, enters the engine lubrication oil duct by the passage in the screw rod again.Lubricant oil is behind the process filter screen, and the impurity in the lubricant oil is filtered the net filtration interception.
Hollow bolt described in the utility model, owing to be provided with filter screen in the position, aperture of the radial direction through hole on hollow bolt top, filter screen can be with the interception of the contaminant filter in the lubricant oil, so can avoid the impurity in the lubricant oil to enter the engine lubrication oil duct; Because filter screen is to be fixed on the hollow bolt, when filter screen is blocked, only need pulls down hollow bolt and can change or clean filter screen, very convenient.
Description of drawings
Fig. 1 is the main pseudosection of hollow bolt described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Hollow bolt as shown in Figure 1 comprises bolt head 1 and the screw rod 3 that combines as a whole with bolt head 1, and the bottom of screw rod 3 is provided with screw thread 5, offers vertically passage 4 on screw rod 3, and the top of screw rod 3 offers radial direction through hole 2, and radial direction through hole 2 is connected with passage 4.Screw rod 3 is plane 7 in the position, aperture of radial direction through hole 2, is fixed with filter screen 6 on this plane 7 of the position, aperture at radial direction through hole 2 two ends, and filter screen 6 covers described aperture.
Claims (2)
1. hollow bolt, comprise bolt head (1) and screw rod (3), on screw rod, offer vertically passage (4), the top of screw rod offers radial direction through hole (2), and this radial direction through hole is connected with described passage, the bottom of screw rod is provided with screw thread (5), it is characterized in that: the position, aperture of described radial direction through hole is provided with filter screen (6) described aperture is covered.
2. hollow bolt according to claim 1, it is characterized in that: screw rod is plane (7) in the position, aperture of radial direction through hole (2), and described filter screen (6) is fixed on this plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319477 CN202673939U (en) | 2012-07-04 | 2012-07-04 | Hollow bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319477 CN202673939U (en) | 2012-07-04 | 2012-07-04 | Hollow bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673939U true CN202673939U (en) | 2013-01-16 |
Family
ID=47494847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319477 Expired - Fee Related CN202673939U (en) | 2012-07-04 | 2012-07-04 | Hollow bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197128A (en) * | 2014-09-17 | 2014-12-10 | 平湖市当湖街道飞天人机械图文设计服务部 | Bolt of oil circuit of numerical-control lathe and process for thermally treating bolt |
| CN114704465A (en) * | 2022-04-11 | 2022-07-05 | 浙江创为真空设备股份有限公司 | Pre-pumping structure of Roots vacuum pump |
-
2012
- 2012-07-04 CN CN 201220319477 patent/CN202673939U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197128A (en) * | 2014-09-17 | 2014-12-10 | 平湖市当湖街道飞天人机械图文设计服务部 | Bolt of oil circuit of numerical-control lathe and process for thermally treating bolt |
| CN114704465A (en) * | 2022-04-11 | 2022-07-05 | 浙江创为真空设备股份有限公司 | Pre-pumping structure of Roots vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20130704 |