CN217107395U - Fuel pump with one-way valve easy to disassemble - Google Patents
Fuel pump with one-way valve easy to disassemble Download PDFInfo
- Publication number
- CN217107395U CN217107395U CN202220729482.4U CN202220729482U CN217107395U CN 217107395 U CN217107395 U CN 217107395U CN 202220729482 U CN202220729482 U CN 202220729482U CN 217107395 U CN217107395 U CN 217107395U
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- valve
- shell
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- valve port
- inlay card
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Abstract
The utility model discloses a check valve quick detachable fuel pump, including the end cover, be equipped with out oil pipe on the end cover, the entrance that goes out oil pipe sets up the inlay card groove, inlay card inslot inlay card has independent check valve subassembly, check valve subassembly includes the shell of a section of thick bamboo shape, case and case frame, shell and inlay card groove phase-match, the shell inlay card is in the inlay card inslot, be equipped with the valve port on the blind end of shell, the open end inlay card case frame of shell, the case includes valve rod and plug head, be equipped with the flexible guide hole of confession valve rod activity on the case frame, the mobile interlude of valve rod is on the guide hole, plug head is towards the valve port, the valve port is the open butt face of arc towards the port setting of valve port, after the plug head bears the hydraulic pressure of backward flow liquid, plug head butt is on the butt face on the valve port and the shutoff valve port. Therefore, the technical effects of reliable structure and convenient installation and disassembly are achieved, and the maintenance and assembly efficiency is greatly improved.
Description
Technical Field
The utility model relates to a car fuel pump, concretely relates to quick detachable fuel pump of check valve.
Background
The end cover of the existing fuel pump is provided with a check valve structure, as shown in fig. 1, the end cover 1 of the fuel pump is provided with an oil outlet pipe 2, a valve core 3 and a valve block 4 are arranged in a channel of the oil outlet pipe 2, during installation, a valve rod of the valve core 3 can movably penetrate through a guide hole 5 in the oil outlet pipe, a plugging head 31 at the other end of the valve core 3 is arranged to be hemispherical, a valve port 41 is arranged on the valve block 4, the valve block is clamped and embedded at the inlet end of the oil outlet pipe, when liquid flows back, the valve core 3 is subjected to the pressure of the backflow, the plugging head 31 can be plugged on the valve port 41 of the valve block, when the oil outlet pipe outputs the liquid, the flowing liquid can push open the valve port opened by the plugging head, one-way passing is realized, and the structure causes that the installation and the disassembly of the check valve structure are more complicated, and the efficiency of maintenance and assembly is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide a fuel pump is quick detachable to check valve that the structure is reliable and the installation is convenient with the dismantlement to improve the efficiency of maintenance and assembly greatly.
In order to achieve the above purpose, the utility model provides a following technical scheme: the fuel pump with the check valve easy to disassemble comprises an end cover, wherein an oil outlet pipeline is arranged on the end cover, a clamping groove is arranged at the inlet of the oil outlet pipeline, an independent one-way valve component is embedded in the embedding groove in a clamping manner, the one-way valve component comprises a cylindrical shell, a valve core and a valve core frame, the shell is matched with the embedding groove, the shell is embedded in the embedding groove, a valve port is arranged on the closed end of the shell, the open end of the shell is embedded in the valve core frame in a clamping way, the valve core comprises a valve rod and a blocking head, the valve core frame is provided with a guide hole for the movable extension of the valve rod, the valve rod can be movably inserted in the guide hole, the blocking head faces the valve port, the port of the valve port facing the valve port is provided with an arc-shaped open abutting surface, after the blocking head bears the hydraulic pressure of the backflow liquid, the blocking head abuts against the abutting surface on the valve port and blocks the valve port.
The plugging head is in a semicircular or conical shape.
The valve core is made of fluororubber.
The utility model discloses a structure for the check valve structure carries out solitary direct mount through check valve subassembly's form, effectively improves the efficiency of check valve structure assembly, when dismantling simultaneously, the export of accessible oil outlet pipe insert the ejector pin ejecting can, it is convenient to change, has greatly improved the efficiency of dismouting and the convenience of installation, and the structure is reliable moreover.
The invention is further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a partial block diagram of a prior art fuel pump;
FIG. 2 is a block diagram of an embodiment of the present invention;
fig. 3 is a block diagram of a one-way valve assembly according to an embodiment of the present invention.
Detailed Description
The present invention is described in detail below with reference to the following examples, which are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention.
As shown in fig. 2 and fig. 3, the embodiment discloses a fuel pump with a check valve easy to detach, which includes an end cover 1, an oil outlet pipe 2 is disposed on the end cover 1, an insertion groove 21 is disposed at an inlet of the oil outlet pipe 2, an independent check valve assembly 3 is inserted in the insertion groove 21, the check valve assembly 3 includes a cylindrical housing 31, a valve core 32 and a valve core frame 33, the housing 31 is matched with the insertion groove 21, the housing 31 is inserted in the insertion groove 21, a valve port 4 is disposed on a closed end of the housing 31, the open end of the housing 31 is inserted in the valve core frame 33, the valve core 32 includes a valve rod 321 and a plug 322, a guide hole 5 for the valve rod 321 to movably extend and retract is disposed on the valve core frame 33, the valve rod 321 is movably inserted in the guide hole 5, the plug 322 faces the valve port 4, the valve port of the valve port 4 is disposed with an arc-shaped open abutting surface 41 (the abutting surface 41 is similar to a chamfer structure), after the plug 322 bears the hydraulic pressure of the backflow liquid, the stopper 322 abuts on the abutment surface 41 on the valve port 4 and blocks the valve port 4.
The semi-circular plug 322 can be effectively abutted against the abutting surface 41 and plug the valve port 4, and the plug 322 can also be conical to achieve the same plugging effect.
The valve element 32 is made of fluororubber. Due to the introduction of fluorine atoms, the fluororubber endows the rubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance, and can effectively prolong the service life of the valve core 32.
Adopt above-mentioned technical scheme for the check valve structure carries out solitary direct mount through check valve subassembly 3's form, effectively improves the efficiency of check valve structure assembly, and during the dismantlement simultaneously, the export of accessible oil outlet pipe 2 insert the ejector pin ejecting can, it is convenient to change, has greatly improved the efficiency of dismouting and the convenience of installation, and the structure is reliable moreover.
Claims (3)
1. The utility model provides a quick detachable fuel pump of check valve, includes the end cover, be equipped with out oil pipe way on the end cover, its characterized in that: the inlet of the oil outlet pipeline is provided with an embedded groove, an independent check valve assembly is embedded in the embedded groove in a clamping mode, the check valve assembly comprises a cylindrical shell, a valve core and a valve core frame, the shell is matched with the embedded groove, the shell is embedded in the embedded groove in a clamping mode, a valve port is arranged on the closed end of the shell, the open end of the shell is embedded in the valve core frame in a clamping mode, the valve core comprises a valve rod and a blocking head, a guide hole for the valve rod to movably stretch out and draw back is formed in the valve core frame, the valve rod can movably penetrate through the guide hole, the blocking head faces the valve port, an arc-shaped open abutting surface is arranged on the port of the valve port facing the valve port, and after the blocking head bears the hydraulic pressure of backflow liquid, the blocking head abuts against the abutting surface on the valve port and blocks the valve port.
2. The quick disconnect fuel pump of one-way valve of claim 1, wherein: the plugging head is in a semicircular or conical shape.
3. The quick disconnect fuel pump of one-way valve of claim 1, wherein: the valve core is made of fluororubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220729482.4U CN217107395U (en) | 2022-03-31 | 2022-03-31 | Fuel pump with one-way valve easy to disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220729482.4U CN217107395U (en) | 2022-03-31 | 2022-03-31 | Fuel pump with one-way valve easy to disassemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217107395U true CN217107395U (en) | 2022-08-02 |
Family
ID=82577954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220729482.4U Active CN217107395U (en) | 2022-03-31 | 2022-03-31 | Fuel pump with one-way valve easy to disassemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217107395U (en) |
-
2022
- 2022-03-31 CN CN202220729482.4U patent/CN217107395U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |