CN208734947U - A kind of check valve assembly - Google Patents

A kind of check valve assembly Download PDF

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Publication number
CN208734947U
CN208734947U CN201821350617.6U CN201821350617U CN208734947U CN 208734947 U CN208734947 U CN 208734947U CN 201821350617 U CN201821350617 U CN 201821350617U CN 208734947 U CN208734947 U CN 208734947U
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CN
China
Prior art keywords
valve body
valve
check valve
positioning step
oil duct
Prior art date
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Active
Application number
CN201821350617.6U
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Chinese (zh)
Inventor
熊鸿斌
蒋宁
罗恒
孙国强
杨登明
张宇航
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI SAIENSI TECHNOLOGY Co Ltd
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HUBEI SAIENSI TECHNOLOGY Co Ltd
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Priority to CN201821350617.6U priority Critical patent/CN208734947U/en
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Publication of CN208734947U publication Critical patent/CN208734947U/en
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Abstract

The utility model relates to a kind of check valve assemblies, including check valve installation oil duct, valve body, valve seat and plug, the valve body is the axis body that one end is provided with the first positioning step, the valve seat is the cylindric part that a side is provided with the second positioning step, it also abuts and has elastic component between first positioning step and second positioning step, the valve body, elastic element, valve seat and plug are sequentially coaxially mounted on inside the check valve installation oil duct;Impurity can be in helicla flute when valve body slides, will not valve body is stuck, and impurity can be back and forth run with valve body in the helicla flute being slipped on valve body automatically, and the fuel oil flowed is taken away;Simultaneously by being provided with helicla flute, the contact area of valve body and valve seat inner hole when being slidably matched can be reduced, reduces friction, so that sliding is smooth, is opened and closed more flexible.

Description

A kind of check valve assembly
Technical field
The utility model relates to a kind of valve field more particularly to a kind of check valve assemblies.
Background technique
Check valve is that fluid can only be flowed along water inlet, and water outlet medium can not but flow back, for preventing in hydraulic system Oil stream reverse flow.Check valve has through type and two kinds of right-angle type.Straight check valve, which is threadedly coupled, to be installed on the pipeline.
However for the check valve in fuel system, in particular for meeting state IV, state V, VI discharge standard diesel engine of state The integrated type electrical oil transfer pump of vehicle oil circuit feed system, pump oil heat prefilter, and fuel-oil-water is trembled with fear the check valve that uses of treasured, usually because Impure to mix in fuel oil, the reciprocating motion of the stuck valve body of particulate species impurity influences the service life of check valve.
Utility model content
The utility model for the technical problems in the prior art, provides a kind of check valve assembly, has sealing effect Fruit is good, and flow resistance is small, not stuck, is opened and closed flexible feature.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of check valve assembly, including check valve peace Charge of oil road, valve body, valve seat and plug, the valve body are the axis body that one end is provided with the first positioning step, and the valve seat is side End is provided with the cylindric part of the second positioning step, also abuts between first positioning step and second positioning step Have elastic component, the valve body, elastic element, valve seat and plug are sequentially coaxially mounted on inside the check valve installation oil duct; There is suction after having pressure either check valve in oil duct, before check valve, the elastic force of check valve, that is, openable, elastic element is lower than Oil duct captured area is greater than the design of normal oil duct inner hole after vehicle flow resistance requires design, check valve to open, so flow resistance very little, Preferably, the elastic element is spring.
Further, at least one spiral groove is provided on the axis body surface of the valve body.
Preferably, the first positioning step of the valve body is type conical bench, and the conical step surface is equipped with annular groove, O-ring is connected on the annular groove.
V-seal face, the type conical bench of the first positioning step of the valve body are provided in the check valve installation oil duct Face is abutted with the V-seal face by O-ring, is formed and is sealed under the pressure of elastic element, economy, conveniently, sealing performance It is good.
The beneficial effects of the utility model are:
1) if fuel oil has impurity, impurity can be in helicla flute when valve body slides, will not valve body is stuck, and impurity can be with Valve body is back and forth run in the helicla flute being slipped on valve body automatically, and the fuel oil flowed is taken away;
2) by being provided with helicla flute, the contact area of valve body and valve seat inner hole when being slidably matched can be reduced, reduction rubs It wipes, so that sliding is smooth, is opened and closed more flexible;
3) elastic element is connected between valve body and valve seat, and valve body and seat design have spring positioning step, guarantees to protect Card elastic element will not deviate, and in combination with O-ring and V-seal face, can have good sealing effect.
Detailed description of the invention
Fig. 1 is a kind of decomposition diagram of check valve of the utility model;
Fig. 2 is a kind of installation oil duct schematic cross-section of check valve of the utility model;
Fig. 3 is a kind of valve body schematic diagram of check valve of the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1, check valve installation oil duct, 2,0 type circle, 3, valve body, 4, elastic element, 5, valve seat, 6, plug, 7, V-seal face, 8, spiral groove.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical It is novel, it is not intended to limit the scope of the utility model.
As shown in Figs. 1-2, a kind of check valve, including check valve installation oil duct 1, valve body 3, valve seat 5 and plug 6, the valve Body 3 is the axis body that one end is provided with the first positioning step, and the valve seat 5 is the cylindrical shape that a side is provided with the second positioning step Part also abuts between first positioning step and second positioning step and has elastic component 4, the valve body 3, elasticity member Part 4, valve seat 5 and plug 6 are sequentially coaxially mounted on the inside of the check valve installation oil duct 1;Have before the oil duct internal check valve There is suction after pressure either check valve, the elastic force of check valve, that is, openable, elastic element 4 requires to set lower than vehicle flow resistance Meter, oil duct captured area is greater than the design of normal oil duct inner hole after check valve is opened, so flow resistance very little, it is preferred that the bullet Property element 4 be spring.
As shown in figure 3, a spiral groove 8 is provided on the axis body surface of the valve body 3, if there is impurity in fuel oil, Impurity will be in helicla flute when valve body 3 slides, will not valve body 3 is stuck;If the axis body of valve body 3 is smooth surface, then any one Point granule foreign is likely to the reciprocal operation of the stuck valve body of meeting, there is spiral groove 8, if there is impurity reciprocal with valve body 3 Operation is slipped in the spiral groove 8 of 3 bar of valve body automatically, and the fuel oil flowed is taken away;It, can simultaneously by being provided with helicla flute The contact area of valve body and valve seat inner hole when being slidably matched is reduced, friction is reduced, so that sliding is smooth, is opened and closed more flexible.
Preferably, the first positioning step of the valve body 3 is type conical bench, and it is recessed that the conical step surface is equipped with annular Slot is connected with O-ring 2 on the annular groove.
V-seal face 7, the taper platform of the first positioning step of the valve body 3 are provided in the check valve installation oil duct 1 Terrace is abutted by O-ring 2 with the V-seal face 7, has good sealing effect under the pressure of elastic element 4.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (4)

1. a kind of check valve assembly, which is characterized in that including check valve installation oil duct (1), valve body (3), valve seat (5) and plug (6), the valve body (3) is the axis body that one end is provided with the first positioning step, and the valve seat (5) is cylindric part, the valve Seat (5) is provided with the second positioning step far from the one end of valve body (3), first positioning step and second positioning step it Between also abut have elastic component (4), the valve body (3), elastic element (4), valve seat (5) and plug (6) are sequentially coaxially mounted on Check valve installation oil duct (1) is internal, is provided at least one spiral groove (8) on the axis body surface of the valve body (3).
2. a kind of check valve assembly according to claim 1, it is characterised in that: the first positioning step of the valve body (3) For type conical bench, the conical step surface is equipped with annular groove, is connected with O-ring (2) on the annular groove.
3. a kind of check valve assembly according to claim 2, it is characterised in that: set in check valve installation oil duct (1) It is equipped with V-seal face (7), the first positioning step of the valve body (3) is abutted by O-ring with the V-seal face (7).
4. a kind of check valve assembly according to claim 1, it is characterised in that: the elastic element (4) is spring.
CN201821350617.6U 2018-08-21 2018-08-21 A kind of check valve assembly Active CN208734947U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821350617.6U CN208734947U (en) 2018-08-21 2018-08-21 A kind of check valve assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821350617.6U CN208734947U (en) 2018-08-21 2018-08-21 A kind of check valve assembly

Publications (1)

Publication Number Publication Date
CN208734947U true CN208734947U (en) 2019-04-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821350617.6U Active CN208734947U (en) 2018-08-21 2018-08-21 A kind of check valve assembly

Country Status (1)

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CN (1) CN208734947U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108843826A (en) * 2018-08-21 2018-11-20 湖北赛恩斯科技股份有限公司 A kind of check valve assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108843826A (en) * 2018-08-21 2018-11-20 湖北赛恩斯科技股份有限公司 A kind of check valve assembly

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A one-way valve assembly

Effective date of registration: 20230303

Granted publication date: 20190412

Pledgee: Bank of China Limited Xiangyang Branch

Pledgor: HUBEI SAIENSI SCIENCE & TECHNOLOGY CO.,LTD.

Registration number: Y2023980033919

PE01 Entry into force of the registration of the contract for pledge of patent right