CN202811752U - Oil drainage bolt - Google Patents
Oil drainage bolt Download PDFInfo
- Publication number
- CN202811752U CN202811752U CN 201220519066 CN201220519066U CN202811752U CN 202811752 U CN202811752 U CN 202811752U CN 201220519066 CN201220519066 CN 201220519066 CN 201220519066 U CN201220519066 U CN 201220519066U CN 202811752 U CN202811752 U CN 202811752U
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- CN
- China
- Prior art keywords
- hole
- oil
- bolt body
- plug
- bolt
- 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 relates to an oil drainage bolt comprising a bolt body, wherein the bolt body comprises a screw rod and a head portion, fastening threads used for the oil drainage bolt to be fixed in an oil hole are arranged on the periphery of the screw rod, an oil guide through hole is arranged in the bolt body along the axis direction of the bolt body, and the oil guide through hole is composed of an oil outlet hole arranged in the screw rod of the bolt body and a plug hole arranged in the head portion of the bolt body. An auxiliary oil drainage bolt is connected in the plug hole in a rotating mode, and comprises a screw rod portion and a cylindrical head portion. The end face of the cylindrical head portion is provided with a hexagonal operation hole, the plug hole is a step hole and composed of a large aperture section and a small aperture section provided with inner threads, the small aperture section is connected with the oil outlet hole, and an aperture of the large aperture section is matched with the diameter of the cylindrical head portion of the auxiliary oil drainage bolt. Compared with the prior art, the oil drainage bolt can regulate the oil drainage speed, achieves gentle oil drainage, reduces the operation frequency of an oil hole in an oil bottom shell, and prolongs service life of the oil hole in the oil bottom shell.
Description
Technical field
The utility model relates to fastening piece, definite says a kind of oil discharge screw.
Background technique
Nowadays, bolt has been applied to various fields as most basic connector element, by head and a screw rod class fastening piece dimerous, is widely used in every field.Oil discharge screw is a kind of as fastening piece, and it is installed in oil sump bottom, is used for stopping up oilhole, more during change engine oil, places waste oil container at needs below oil sump, slowly turns on oil discharge screw, and waste oil flows out from drain oil; Existing oil discharge screw needs whole bolt is taken out from oil sump when draining the oil, and can't control defuelling rate according to actual conditions, in the process of draining the oil, waste oil disorderly spatters easily, pollute, and existing oil discharge screw is single bolt setting, and after long-term the use, bolt thread damages and easily causes Bolt dismantling inconvenience and fragile oilhole place screw thread.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of defuelling rate controlled, drains the oil mild and oilhole seals reliable oil discharge screw.
For achieving the above object, the utility model provides following technological scheme: a kind of oil discharge screw, include bolt body, described bolt body comprises screw rod and head, described screw rod outer circumferential face is provided with for the binding thread that oil discharge screw is fixed on oilhole, it is characterized in that: offer the Oil Guide through hole that axially arranges along bolt body in the described bolt body, described Oil Guide through hole comprises the oil outlet that is positioned at bolt body screw rod place and the plug-hole that is positioned at the bolt body head, be connected with auxiliary oil discharge screw in the plug-hole, auxiliary oil discharge screw comprises screw portion and cylindrical head, offer the hexagon handle hole on the cheese head end surface, described plug-hole is step hole, plug-hole comprises the large aperture section and is provided with the small aperture section of internal thread, the small aperture section is connected with oil outlet, and the cylindrical head diameter of the aperture of large aperture section and auxiliary oil discharge screw is adaptive.
The utility model further is set to: the aperture of the plug-hole small aperture section of described bolt body is greater than the aperture of the oil outlet of bolt body.
Further be set to: it is opposite with the hand of spiral of internal thread in the Oil Guide through hole that the screw rod of described bolt body tightens screw thread again.
By adopting technique scheme, the utility model provides a kind of oil discharge screw that adopts two bolt combination, has following advantage: at bolt body an Oil Guide through hole is set, increased an oil discharge passage, realized the regulating and controlling of fuel-displaced flow, when the large flow of needs is drained the oil, the oilhole of bolt body from oil sump screwed off, when the needs small flow is drained the oil, only need to screw out auxiliary oil discharge screw, oil flows out from the Oil Guide through hole; In the plug-hole of the cylindrical head stud bolt body head of auxiliary oil discharge screw, realize the reliable sealing to the Oil Guide through hole simultaneously.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the structural representation of the utility model implementation;
Fig. 2 is the axial sectional view of the utility model implementation oil discharge screw;
Fig. 3 is the bolt body structural representation of the utility model implementation oil discharge screw.
Embodiment
Referring to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, the disclosed a kind of oil discharge screw of the utility model includes bolt body 1 and auxiliary oil discharge screw 2.Described bolt body 1 comprises screw rod 11 and head 10, and described screw rod 11 outer circumferential faces are provided with for the binding thread that oil discharge screw is fixed on oilhole.Offer the Oil Guide through hole 12 that axially arranges along bolt body 1 in the described bolt body 1; Described Oil Guide through hole 12 comprises the oil outlet 121 that is positioned at bolt body 1 screw rod 11 places and the plug-hole 120 that is positioned at bolt body 1 head 10; Spin in the plug-hole 120 and assist oil discharge screw 2, described plug-hole 120 is step hole, and plug-hole 120 comprises large aperture section 1200 and be provided with the small aperture section 1201 of internal thread that small aperture section 1201 is connected with oil outlet 121; Auxiliary oil discharge screw 2 comprises screw portion 21 and cylindrical head 20, offers hexagon handle hole 200 on cylindrical head 20 end faces; Cylindrical head 20 diameters of the aperture of the large aperture section 1200 of plug-hole 120 and auxiliary oil discharge screw 2 are adaptive, and the hole depth of large aperture section 1200 is less than the axial length of the cylindrical head 20 of auxiliary oil discharge screw 2.
In this specific embodiment, the aperture of the plug-hole 120 small aperture sections 1201 of described bolt body 1 is greater than oil outlet 121 apertures of bolt body 1.Oil Guide through hole 12 forms limited step in plug-hole 120 and oil outlet 121 joints like this, and limited step makes auxiliary oil discharge screw 2 lock onto plug-hole 120 can not lock when interior deeply, and the sealing effect of locking is better.
Be easy-to-operat, it is opposite with the hand of spiral of Oil Guide through hole 12 interior internal threads that the screw rod 11 of described bolt body 1 tightens screw thread.Like this when auxiliary oil discharge screw 2 screws out from plug-hole, can not cause because of identical hand of spiral in the oilhole of bolt body 1 from the oil sump looseningly, and cause leakage of oil.
Claims (3)
1. oil discharge screw, include bolt body, described bolt body comprises screw rod and head, described screw rod outer circumferential face is provided with for the binding thread that oil discharge screw is fixed on oilhole, it is characterized in that: offer the Oil Guide through hole that axially arranges along bolt body in the described bolt body, described Oil Guide through hole comprises the oil outlet that is positioned at bolt body screw rod place and the plug-hole that is positioned at the bolt body head, be connected with auxiliary oil discharge screw in the plug-hole, auxiliary oil discharge screw comprises screw portion and cylindrical head, offer the hexagon handle hole on the cheese head end surface, described plug-hole is step hole, plug-hole comprises the large aperture section and is provided with the small aperture section of internal thread, the small aperture section is connected with oil outlet, and the cylindrical head diameter of the aperture of large aperture section and auxiliary oil discharge screw is adaptive.
2. oil discharge screw according to claim 1, it is characterized in that: the aperture of the plug-hole small aperture section of described bolt body is greater than the aperture of the oil outlet of bolt body.
3. oil discharge screw according to claim 1 and 2 is characterized in that: it is opposite with the hand of spiral of internal thread in the Oil Guide through hole that the screw rod of described bolt body tightens screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519066 CN202811752U (en) | 2012-10-10 | 2012-10-10 | Oil drainage bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519066 CN202811752U (en) | 2012-10-10 | 2012-10-10 | Oil drainage bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811752U true CN202811752U (en) | 2013-03-20 |
Family
ID=47870632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220519066 Expired - Fee Related CN202811752U (en) | 2012-10-10 | 2012-10-10 | Oil drainage bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179417A (en) * | 2015-07-22 | 2015-12-23 | 苏州迪诺环保科技有限公司 | Screw |
| CN113531376A (en) * | 2021-07-08 | 2021-10-22 | 中国航发湖南动力机械研究所 | Engine lubricating oil discharging device |
-
2012
- 2012-10-10 CN CN 201220519066 patent/CN202811752U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179417A (en) * | 2015-07-22 | 2015-12-23 | 苏州迪诺环保科技有限公司 | Screw |
| CN113531376A (en) * | 2021-07-08 | 2021-10-22 | 中国航发湖南动力机械研究所 | Engine lubricating oil discharging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |