CN205977662U - Rear end blanking cover anticreep mounting structure of machine oil pump shell voltage limiting valve mounting hole - Google Patents
Rear end blanking cover anticreep mounting structure of machine oil pump shell voltage limiting valve mounting hole Download PDFInfo
- Publication number
- CN205977662U CN205977662U CN201620887554.2U CN201620887554U CN205977662U CN 205977662 U CN205977662 U CN 205977662U CN 201620887554 U CN201620887554 U CN 201620887554U CN 205977662 U CN205977662 U CN 205977662U
- Authority
- CN
- China
- Prior art keywords
- limiting valve
- blanking cover
- voltage limiting
- pressure limiting
- mounting hole
- 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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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a rear end blanking cover anticreep mounting structure of machine oil pump shell voltage limiting valve mounting hole, the machine be provided with on the oil pump shell with the communicating voltage limiting valve mounting hole of inside oil duct, voltage limiting valve mounting hole install finite pressure valve, the front end of voltage limiting valve follow voltage limiting valve mounting hole is packed into in the voltage limiting valve mounting hole to with the front seal of voltage limiting valve mounting hole, still include the blanking cover, the blanking cover from the back end pressure of voltage limiting valve mounting hole rivet get into voltage limiting valve mounting hole in, and the end is provided with the conquassation point that is the circumference equipartition behind the voltage limiting valve mounting hole, thereby conquassation point orientation is inboard to drop the spacing blanking cover that prevents of blanking cover. The structure of encrypting the seal with traditional bolt changes the blanking cover into and presses and rivet and combine conquassation point anticreep, structure and simple process, greatly reduced manufacturing cost.
Description
Technical field
This utility model is related to fuel pump structure and in particular to the rear end blanking cover of pressure limiting valve installing hole on oil pump casing
Anticreep mounting structure.
Background technology
The pressure limiting valve installing hole being communicated with internal galleries is provided with oil pump casing, pressure limiting valve installing hole is built with pressure limiting
Valve, when in oil pump casing, oil pressure is excessive, by pressure limiting valve pressure release.Pressure limiting valve is from the front loaded pressure limiting of pressure limiting valve installing hole
In the hole installed by valve, and the forward end seal by pressure limiting valve installing hole.Bolt seal is passed through in the rear end of pressure limiting valve installing hole, and is equipped with close
Seal, structure and complex process, manufacturing cost is high.
Utility model content
This utility model aims to provide a kind of rear end blanking cover anticreep mounting structure of oil pump casing pressure limiting valve installing hole, letter
Change structure and technique, reduces cost.
For this reason, the technical scheme that this utility model is adopted is：A kind of rear end of oil pump casing pressure limiting valve installing hole is blocked up
Lid anticreep mounting structure, described oil pump casing is provided with the pressure limiting valve installing hole being communicated with internal galleries, and pressure limiting valve is installed
Equipped with pressure limiting valve, pressure limiting valve installs in the hole from the front loaded pressure limiting valve of pressure limiting valve installing hole in the hole, and by pressure limiting valve installing hole
Forward end seal, also include blanking cover, described blanking cover from the rear end of pressure limiting valve installing hole press entrance pressure limiting valve install in the hole, and limit
Pressure valve installing hole follower head is provided with circumferentially uniform crush point, described crush point towards inner side by spacing for blanking cover thus preventing
Blanking cover comes off.
Preferred as such scheme, described crush point totally four.
The beneficial effects of the utility model：The structure that traditional bolt is encrypted seal is changed to blanking cover and presses and combine conquassation
Point anticreep, structure and process is simple, greatly reduce manufacturing cost.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A direction view of Fig. 1.
Specific embodiment
Below by embodiment and combine accompanying drawing, the utility model is described in further detail：
In conjunction with shown in Fig. 1, Fig. 2, a kind of rear end blanking cover anticreep mounting structure of oil pump casing pressure limiting valve installing hole, mainly
It is made up of oil pump casing 1, pressure limiting valve and blanking cover 3.
The pressure limiting valve installing hole 2 being communicated with internal galleries is provided with oil pump casing 1, pressure limiting valve installing hole 2 built with
Pressure limiting valve.Pressure limiting valve is in the front loaded pressure limiting valve installing hole 2 of pressure limiting valve installing hole 2, and the front end by pressure limiting valve installing hole 2
Sealing, when the oil pressure of oil pump casing 1 is too high, by pressure limiting valve pressure release.
Blanking cover 3 presses in entrance pressure limiting valve installing hole 2 from the rear end of pressure limiting valve installing hole 2, and pressure limiting valve installing hole 2 rear end
Head is provided with circumferentially uniform crush point 2a, and crush point 2a is formed in pressure limiting valve installing hole 2 follower head surface rolling by press.
Crush point 2a will be spacing for blanking cover 3 towards inner side thus preventing blanking cover 3 from coming off.
Preferably, crush point 2a totally four.
Claims (2)
1. a kind of rear end blanking cover anticreep mounting structure of oil pump casing pressure limiting valve installing hole, described oil pump casing (1) sets
It is equipped with the pressure limiting valve installing hole (2) communicating with internal galleries, the built-in limited valve of pressure limiting valve installing hole (2), pressure limiting valve is from pressure limiting
The front loaded pressure limiting valve installing hole (2) of valve installing hole (2) is interior, and the forward end seal by pressure limiting valve installing hole (2), and its feature exists
In：Also include blanking cover (3), described blanking cover (3) presses in entrance pressure limiting valve installing hole (2) from the rear end of pressure limiting valve installing hole (2),
And pressure limiting valve installing hole (2) follower head is provided with circumferentially uniform crush point (2a), described crush point (2a) will towards inner side
Blanking cover (3) spacing thus preventing blanking cover (3) from coming off.
2. according to the rear end blanking cover anticreep mounting structure of the oil pump casing pressure limiting valve installing hole described in claim 1, its feature
It is：Described crush point (2a) totally four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887554.2U CN205977662U (en) | 2016-08-16 | 2016-08-16 | Rear end blanking cover anticreep mounting structure of machine oil pump shell voltage limiting valve mounting hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887554.2U CN205977662U (en) | 2016-08-16 | 2016-08-16 | Rear end blanking cover anticreep mounting structure of machine oil pump shell voltage limiting valve mounting hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977662U true CN205977662U (en) | 2017-02-22 |
Family
ID=58030642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620887554.2U Expired - Fee Related CN205977662U (en) | 2016-08-16 | 2016-08-16 | Rear end blanking cover anticreep mounting structure of machine oil pump shell voltage limiting valve mounting hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977662U (en) |
-
2016
- 2016-08-16 CN CN201620887554.2U patent/CN205977662U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20190816 |