CN207620951U - One kind being used for assembly upper cover check valve choke apparatus - Google Patents
One kind being used for assembly upper cover check valve choke apparatus Download PDFInfo
- Publication number
- CN207620951U CN207620951U CN201721457565.8U CN201721457565U CN207620951U CN 207620951 U CN207620951 U CN 207620951U CN 201721457565 U CN201721457565 U CN 201721457565U CN 207620951 U CN207620951 U CN 207620951U
- Authority
- CN
- China
- Prior art keywords
- check valve
- upper cover
- assembly upper
- oil inlet
- choke apparatus
- 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
Cost is reduced the utility model is related to a kind of, one kind convenient for assembly is used for assembly upper cover check valve choke apparatus, and to achieve the above object, the utility model provides following technical solution：One kind is used for assembly upper cover check valve choke apparatus, including fuel oil pump assembly upper cover, and the fuel oil pump assembly upper cover includes oil inlet and oil outlet, it is characterized in that：Cavity is equipped between the oil inlet and outlet, the cavity is equipped with the oil inlet opening being connected to oil inlet and oil outlet and oil outlet opening, the cavity is equipped with mounting structure in oil inlet opening, the mounting structure is equipped with the check valve choke apparatus of adaptation, the check valve choke apparatus includes check valve, the check valve is equipped with the unidirectional valve body for preventing fuel flow returns, and the unidirectional valve body is equipped with the sealing surface for closed cavity and oil inlet opening.
Description
Technical field
The utility model is related to fuel oil pump technical fields, and in particular to one kind being used for assembly upper cover check valve choke apparatus.
Background technology
The amount of fuel of fuel pump supply is bigger than the maximum distributive value of engine calls, to be protected under various applying working conditions
Hold fuel transfer pressure, a check valve be additionally provided in the exit of fuel pump, when preventing engine cut-off oil pressure decline suddenly and can
Fuel oil can be caused to flow backwards phenomenon.
The individual event valve of existing oil return line fix by guide rod, takes back oil pipe, and oil is drained into low cylinder, the waste of such mechanism at
This, also plain another return check valve installation steps are more for appearance, of high cost, are unfavorable for assembling.
Utility model content
The technical problem to be solved by the utility model is in view of the above shortcomings of the prior art, provide it is a kind of reduce at
This, one kind convenient for assembly is used for assembly upper cover check valve choke apparatus.
To achieve the above object, the utility model provides following technical solution：One kind is hindered for assembly upper cover check valve
Flowing device, including assembly upper cover, the assembly upper cover includes oil inlet and oil outlet, it is characterized in that：The oil inlet with go out
Cavity is equipped between hydraulic fluid port, the cavity is equipped with the oil inlet opening being connected to oil inlet and oil outlet and oil outlet is opened
Mouthful, the cavity is equipped with mounting structure in oil inlet opening, and the mounting structure is equipped with the check valve choke apparatus of adaptation, institute
It includes check valve to state check valve choke apparatus, and the check valve is equipped with the unidirectional valve body for preventing liquid reflux, the list
The sealing surface being open with oil inlet for closed cavity is equipped with to valve body.
Further setting is the utility model：The sealing surface includes that first be fixedly connected with unidirectional valve body is shut off
Face and what is be bonded with oil inlet opening side cavity wall second shut off face, described first shuts off face and the second face of shutting off passes through company
Junction is fixedly connected.
Further setting is the utility model：The unidirectional valve body is used to prevent list equipped with what is be adapted to mounting structure
Deviate from the position limiting structure of mounting structure to valve body.
Further setting is the utility model：The position limiting structure includes the limiting section for being set to unidirectional valve body, institute
It includes the unidirectional valve body overstriking position that diameter is more than mounting structure diameter to state limiting section.
The utility model as characterized above：Reach prevent fuel flow returns purpose while, reduce materials'use,
Assembling process is simplified, cost has been saved.
Further setting is the utility model：The oil inlet, oil outlet and cavity outer surface are equipped with fixed cover, institute
Fixed cover is stated to be fixedly connected with assembly upper cover.
Further setting is the utility model：It includes being set to always that the fixed cover, which is fixedly connected with mode with assembly upper cover,
At the fixed point of upper cover, the fixed cover is fixed with fixed point by ultrasonic bonding.
The utility model as characterized above：Fixed cover is for fixing oil inlet, oil outlet and mechanism of unidirectionally shutting off
With the connection of assembly upper cover, while ultrasonic bonding simultaneously, the conveniently and efficiently fixed cover of installation.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Specific implementation mode
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
One kind as shown in Figure 1 is used for assembly upper cover check valve choke apparatus, including assembly upper cover 1, the assembly upper cover 1
Including oil inlet 2 and oil outlet 3, it is characterized in that：Cavity 11, the cavity 11 are equipped between the oil inlet 2 and oil outlet 3
Equipped with the oil inlet opening 9 and oil outlet opening 12 being connected to oil inlet 2 and oil outlet 3, the cavity 11 is in oil inlet
It is open at 9 and is equipped with the check valve choke apparatus of adaptation, the check valve choke apparatus packet equipped with mounting structure, the mounting structure
Check valve is included, the check valve is equipped with the unidirectional valve body 8 for preventing fuel flow returns, and the unidirectional valve body 8 is equipped with and is used for
The sealing surface of closed cavity and oil inlet opening, the sealing surface include that first be fixedly connected with unidirectional valve body 8 is shut off face 4
And second be bonded with oil inlet opening side cavity wall is shut off face 5, the described first face 4 of shutting off passes through with the second face 5 of shutting off
Joint face 10 is fixedly connected, and the unidirectional valve body 8 is used to prevent unidirectional valve body abjection peace equipped with what is be adapted to mounting structure
The position limiting structure of assembling structure, the position limiting structure include the limiting section for being set to unidirectional valve body, and the limiting section includes diameter
More than the unidirectional valve body overstriking position of mounting structure diameter, the oil inlet 2, oil outlet 3 and 11 outer surface of cavity are equipped with
Fixed cover 6, the fixed cover 6 are fixedly connected with assembly upper cover 1, and the fixed cover 6 is fixedly connected with mode with assembly upper cover 1 and includes
It is set to the fixed point 7 of assembly upper cover 1, the fixed cover 6 is fixed with fixed point 7 by ultrasonic bonding.
Claims (6)
1. one kind is used for assembly upper cover check valve choke apparatus, including assembly upper cover, the assembly upper cover include oil inlet and
Oil outlet, it is characterized in that：Cavity is equipped between the oil inlet and outlet, the cavity is equipped with and oil inlet and oil outlet
The oil inlet of connection is open and oil outlet opening, and the cavity is equipped with mounting structure, the installation knot in oil inlet opening
Structure is equipped with the check valve choke apparatus of adaptation, and the check valve choke apparatus includes check valve, and the check valve is equipped with for preventing
The only unidirectional valve body of liquid reflux, the unidirectional valve body are equipped with the sealing surface for closed cavity and oil inlet opening.
2. it is according to claim 1 a kind of for assembly upper cover check valve choke apparatus, it is characterized in that：The sealing bread
It includes and unidirectional valve body is fixedly connected first shuts off face and what is be bonded with oil inlet opening side cavity wall second shut off face,
Described first face of shutting off is fixedly connected with the second face of shutting off by joint face.
3. it is according to claim 1 a kind of for assembly upper cover check valve choke apparatus, it is characterized in that：The check valve master
Body is equipped with the position limiting structure for preventing unidirectional valve body abjection mounting structure being adapted to mounting structure.
4. it is according to claim 3 a kind of for assembly upper cover check valve choke apparatus, it is characterized in that：The position limiting structure
Limiting section including being set to unidirectional valve body, the limiting section include that diameter adds more than the unidirectional valve body of mounting structure diameter
Thick portion position.
5. it is according to claim 1 a kind of for assembly upper cover check valve choke apparatus, it is characterized in that：The oil inlet,
Oil outlet and cavity outer surface are equipped with fixed cover, and the fixed cover is fixedly connected with assembly upper cover.
6. it is according to claim 5 a kind of for assembly upper cover check valve choke apparatus, it is characterized in that：The fixed cover with
It includes being set to the fixed point of assembly upper cover that assembly upper cover, which is fixedly connected with mode, and the fixed cover passes through supersonic welding with fixed point
Connect fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457565.8U CN207620951U (en) | 2017-11-03 | 2017-11-03 | One kind being used for assembly upper cover check valve choke apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457565.8U CN207620951U (en) | 2017-11-03 | 2017-11-03 | One kind being used for assembly upper cover check valve choke apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207620951U true CN207620951U (en) | 2018-07-17 |
Family
ID=62827701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721457565.8U Expired - Fee Related CN207620951U (en) | 2017-11-03 | 2017-11-03 | One kind being used for assembly upper cover check valve choke apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207620951U (en) |
-
2017
- 2017-11-03 CN CN201721457565.8U patent/CN207620951U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180717 Termination date: 20201103 |