CN207796182U - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
- Publication number
- CN207796182U CN207796182U CN201721348549.5U CN201721348549U CN207796182U CN 207796182 U CN207796182 U CN 207796182U CN 201721348549 U CN201721348549 U CN 201721348549U CN 207796182 U CN207796182 U CN 207796182U
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- valve
- valve body
- check valve
- entrance
- screw rod
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Abstract
The utility model belongs to valve technology field, discloses a kind of check valve.It includes：Valve body, non-return component and regulator are provided with the entrance flowed into for fluid and the outlet flowed out for fluid on valve body；Non-return component is arranged in entrance and the opening and closing for controlling check valve, and non-return component includes the spool, spring and spring base set gradually from entrance to valve inner；Regulator is set between entrance and exit, including the adjusting screw rod of one end and spring base screw-thread fit and the guide rail that is fixed on valve inner and coordinates with spring base, the other end of adjusting screw rod are pierced by valve body, and the guide direction of guide rail is identical as the length direction of spring.The utility model check valve is angie type structure, and pressure, which is adjusted, uses external, and on-line control is more convenient and accurate.
Description
Technical field
The utility model is related to valve technology field more particularly to a kind of angie type check valves.
Background technology
The structural shape of check valve is generally through-type at present.As shown in Figure 1, through-type check valve mainly by 1 ＇ of valve body,
2 ＇ of valve seat, 3 ＇ of spool, 4 ＇ of spring and adjusting bolt 5 ＇ compositions, 1 ＇ of valve body includes straight tube, and 2 ＇ of valve seat is arranged in one end of straight tube, valve
3 ＇ of core is resisted against on 2 ＇ of valve seat, and 4 ＇ of the spring is set gradually along the axis direction of straight tube in sides of 3 ＇ of spool far from 2 ＇ of valve seat
With 5 ＇ of the adjusting bolt, check valve, by 5 ＇ of adjusting bolt in Rotary straight pipe, makes 5 ＇ of adjusting bolt along axis in pressure regulation
Line direction moves, and the Opening pressure that 4 ＇ of spring stretches either compression check valve therewith reduces or increases.When Fluid pressure is more than
When the Opening pressure of check valve, 3 ＇ of fluid forces spool is moved to the direction far from 2 ＇ of valve seat, and fluid flows into straight tube, when fluid pressure
When power is less than the Opening pressure of check valve, fluid can not push 3 ＇ of spool, fluid that cannot pass through 1 ＇ of valve body.Reverse fluid flow
When, fluid will be such that 3 ＇ of spool is pressed on 2 ＇ of valve seat, and fluid can not pass through.
Above-mentioned through-type check valve has a defect that Opening pressure on-line control is difficult, needs to remove list from pipeline
To valve, the position of the adjusting bolt of check valve valve inner is then adjusted, check valve, which is reinstalled pipeline, later detects Opening pressure,
Judge whether the Opening pressure of check valve reaches required pressure.If Opening pressure adjusts inaccuracy, need to adjusting bolt
It repeatedly adjusts, that is, needs to carry out being dismounted for multiple times to check valve, it is time-consuming and laborious, bring difficulty to execute-in-place.
Secondly, using O-ring seal when through-type check valve sealing, the sealing ring of this structure is in Fluid pressure mistake
Greatly, outlet pressure resistance not enough, pressure difference it is high when, be easily separated from seal groove, and seal groove is caused not have the effect of sealing, it is easy to lead
It causes fluid to leak into the at one end in valve outlet direction, trouble is caused to the course of work.
Therefore, there is an urgent need for a kind of Novel check valves to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of check valves, to solve the Opening pressure on-line control of existing check valve
Difficult, regulation flow process complexity problem.
For this purpose, the utility model uses following technical scheme：
A kind of check valve comprising：
Valve body is provided with the entrance flowed into for fluid and the outlet flowed out for fluid；
Non-return component is arranged in the entrance and for controlling the opening and closing of the check valve, the non-return component
Include the spool, spring and spring base set gradually from the entrance to the valve inner；
Regulator is set between the entrance and the outlet, including one end and the spring base screw-thread fit
Adjusting screw rod and the guide rail for being fixed on the valve inner and coordinating with the spring base, the other end of the adjusting screw rod are pierced by
The valve body, the guide direction of the guide rail are identical as the length direction of the spring.
Preferably, the regulator further includes the thrust bearing being set on the valve body, the thrust bearing is worn
On the adjusting screw rod.
Preferably, the regulator further includes locking nut, described valve body one end spiral shell is pierced by with the adjusting screw rod
Line coordinates.
Preferably, one end that the adjusting screw rod stretches out the valve body is cuboid.
Preferably, further including safety guard, the safety guard connect to form accommodating cavity with valve body, for housing the adjusting
Screw rod is pierced by the part of the valve body.
Preferably, the spool includes valve core, gasket and valve core case, the gasket is set to the valve core
Between the valve core case, be provided with position-limited needle on the valve core, the valve core case is provided with limit hole, the valve core with
The valve core case is limited by position-limited needle and limit hole cooperation, and the spool coordinates with the sealing structure for forming the entrance.
Preferably, the valve body includes orthogonal pipe straight branch and side leads to branch pipe, the side leads to branch pipe by described
Pipe straight branch connects, and one end of the pipe straight branch is the entrance, and the side leads to end of the branch pipe far from the pipe straight branch
For the outlet.
Preferably, further including valve seat and valve deck, the valve seat is set in the valve body and is located at described entrance one end,
The valve deck is set to the other end of the pipe straight branch and is connect with the valve seal.
Preferably, the non-return component is set in the pipe straight branch of the valve body, the institute of the non-return component
It states spool and is resisted against the valve seat.
Preferably, the spring base of the regulator, the guide rail and the thrust bearing are set to the valve
In the pipe straight branch of body, the regulator is arranged at the valve deck.
The beneficial effects of the utility model：The utility model check valve is angie type structure, by using external pressure tune
Regulating device, realizing can keep adjustment process more convenient and accurate when unidirectional valve regulation Opening pressure with the purpose of on-line control；
Using thrust bearing, reduces the peripheral force when rotating adjusting screw rod, keep adjusting lighter；
Using gasket replace O-ring seals, improve the reliability of sealing, when check valve be in pressure difference it is high when will not
Fluid leakage phenomenon occurs.
Description of the drawings
Fig. 1 is the structural schematic diagram for the through-type check valve that the prior art provides；
Fig. 2 is the explosive view for the check valve that the utility model embodiment provides；
Fig. 3 is the sectional view for the check valve that the utility model embodiment provides.
In figure：
1 ＇, valve body；2 ＇, valve seat；3 ＇, spool；4 ＇, spring；5 ＇, adjusting screw rod；
1, valve body；11, entrance；12, it exports；
2, valve seat；
3, non-return component；31, spool；311, valve core；312, gasket；313, valve core case；32, spring；33, spring
Seat；
4, regulator；41, guide rail；42, adjusting screw rod；43, thrust bearing；44, locking nut；
5, valve deck；6, safety guard.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Fig. 2, the check valve that present embodiment proposes, including valve body 1, non-return component 3 and regulator 4；Valve body 1
Lead to branch pipe including orthogonal pipe straight branch and side, side leads to branch pipe and connected by pipe straight branch, and one end of pipe straight branch is as stream
The entrance 11 that body flows into, side lead to the outlet 12 that end of the branch pipe far from pipe straight branch is flowed out as fluid.The setting of non-return component 3 exists
In the pipe straight branch of valve body 1 and at entrance 11, include from entrance 11 to valve body 1 inside the spool 31, the spring that set gradually
32 and spring base 33, the opening and closing for controlling check valve, while the flow direction that can control fluid can only be entered from fluid
Mouth 11 flows into, and 12 outflow of outlet, fluid is unable to negative direction and passes through check valve；Regulator 4 be set to entrance 11 and outlet 12 it
Between, structure include the adjusting screw rod 42 of one end and 33 screw-thread fit of spring base and be fixed on the inside of valve body 1 and with spring base 33
The other end of the guide rail 41 of cooperation, adjusting screw rod 42 is pierced by valve body 1, the guide direction of guide rail 41 and the length direction phase of spring 32
Together.By rotating adjusting screw rod 42, spring base 33 with matching will leading downward along adjusting screw rod 42 in guide rail 41
Axis direction move in a straight line, if spring base 33 towards 11 direction of entrance move, can compressed spring 32, make check valve
Opening pressure become larger, conversely, then reducing Opening pressure value.
In 1 pipe straight branch of valve body, the at one end opposite with fluid inlet 11 is provided with valve deck 5, valve deck 5 and valve body 1 it
Between be tightly connected.
Thrust bearing 43 is additionally provided on valve body 1, thrust bearing 43 is arranged on adjusting screw rod 42, and thrust bearing 43 abuts
Valve deck 5 is arranged, and the advantage is that, when turning adjusting screw rod 42, thrust bearing 43 can reduce along 42 circumferential direction of adjusting screw rod
Power, using thrust bearing 43 make rolling friction replace sliding friction, make adjusting more easily it is laborsaving.
In the outside of valve body 1 and 5 end of valve deck is acted against equipped with locking nut 44, locking nut 44 and adjusting screw rod 42
It is screw-thread fit to be pierced by 1 one end of valve body, and when user regulates required Opening pressure by adjusting screw rod 42, needing further will lock
Tight nut 44 acts against 5 end of valve deck, makes remains stationary state under the influence of not by external force of adjusting screw rod 42, to prevent adjusting
The position that section screw rod 42 makes circumferential movement and influences spring base 33 changes the Opening pressure value set in turn.
Pressure adjusting is carried out to check valve in order to facilitate user, one end that adjusting screw rod 42 stretches out valve body 1 is set as cuboid,
Convenient for user by the tool of spanner one kind, adjusting screw rod 42 is adjusted.When user is adjusting end and tightening locking screw
After mother 44, the safety guard 6 on an end shield of valve deck 5 is needed on valve body 1, locking nut 44 is avoided to be interfered by external force.
Valve seat 2 is arranged at the fluid inlet 11 of check valve, and non-return component 3 is resisted against on valve seat 2, wherein non-return component 3
In spool 31 further include valve core 311, gasket 312 and valve core case 313, wherein valve core 311 is located in valve seat 2, valve seat
2 edge is fitted closely with gasket 312, and valve core 311 is inserted into valve core case 313 by position-limited needle across gasket 312
In limit hole, the assembly of entire spool 31 is realized, at fluid inlet 11, the pressure value of fluid needs the unlatching for reaching check valve
When pressure value, the open-top spool 31 of fluid realizes the flowing of fluid.Before this, spool 31 with the valve seat 2 at entrance 11 by adopting
It is realized and is sealed with oil resistant rubber gasket 312.
Spring base 33, guide rail 41 and thrust bearing 43 in regulator 4 are located in the pipe straight branch of valve body 1, and close
At valve deck 5, facilitate check valve so regulator 4 is placed at valve deck 5 since check valve adjusts pressure using external
Pressure is adjusted in real time.
Fig. 3 is check valve configuration schematic diagram, and check valve is when being adjusted, first by safety guard 6 from valve body 1
On remove, then locking nut 44 is unscrewed to there is certain gap between valve deck 5 with spanner, then spiral shell is adjusted with spanner clamping
One end of the cuboid of bar 42 is rotated along the circumferential direction of adjusting screw rod 42, rotates adjusting screw rod, while spring base 33 is in valve
Leading for guide rail 41 inside body 1 moves down, if user needs to tune up Opening pressure, by spring base 33 towards entrance 11
Direction movement, conversely, then towards 5 one end of valve deck move.When setting the Opening pressure value of needs, with spanner by locking nut
44 locking to adjusting screw rods 42 no longer rotate, then safety guard 6 is mounted on valve body 1, then complete Primary regulation process.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (10)
1. a kind of check valve, which is characterized in that including：
Valve body（1）, it is provided with the entrance flowed into for fluid（11）With the outlet flowed out for fluid（12）；
Non-return component（3）, it is arranged in the entrance（11）Place and the opening and closing for being used to control the check valve, it is described non-return
Component（3）Including by the entrance（11）To the valve body（1）The spool that inside is set gradually（31）, spring（32）And spring base
（33）；
Regulator（4）, it is set to the entrance（11）With the outlet（12）Between, including one end and the spring base（33）
The adjusting screw rod of screw-thread fit（42）Be fixed on the valve body（1）It is internal and with the spring base（33）The guide rail of cooperation
（41）, the adjusting screw rod（42）The other end be pierced by the valve body（1）, the guide rail（41）Guide direction and the spring
（32）Length direction it is identical.
2. check valve according to claim 1, which is characterized in that the regulator（4）Further include being set to the valve
Body（1）On thrust bearing（43）, the thrust bearing（43）It is arranged in the adjusting screw rod（42）On.
3. check valve according to claim 2, which is characterized in that the regulator（4）It further include locking nut（44）,
The locking nut（44）With the adjusting screw rod（42）It is pierced by the valve body（1）Threaded one end coordinates.
4. check valve according to claim 1, which is characterized in that the adjusting screw rod（42）Stretch out the valve body（1）'s
One end is cuboid.
5. check valve according to claim 1, which is characterized in that further include safety guard（6）, the safety guard（6）With valve
Body（1）Connection forms accommodating cavity, the safety guard（6）For housing the adjusting screw rod（42）It is pierced by the valve body（1）Portion
Point.
6. check valve according to claim 1, which is characterized in that the spool（31）Including valve core（311）, gasket
（312）And valve core case（313）, the gasket（312）It is set to the valve core（311）With the valve core case（313）Between,
The valve core（311）On be provided with position-limited needle, the valve core case（313）It is provided with limit hole, the valve core（311）With institute
State valve core case（313）It is limited by position-limited needle and limit hole cooperation, the spool（31）With the formation entrance（11）Structure
Sealing cooperation.
7. check valve according to claim 2, which is characterized in that the valve body（1）Including orthogonal pipe straight branch
Lead to branch pipe with side, the side leads to branch pipe and connected by the pipe straight branch, and one end of the pipe straight branch is the entrance（11）, institute
It states side and leads to end of the branch pipe far from the pipe straight branch for the outlet（12）.
8. check valve according to claim 7, which is characterized in that further include valve seat（2）And valve deck（5）, the valve seat（2）
It is set to the valve body（1）It is interior and be located at the entrance（11）One end, the valve deck（5）It is set to the another of the pipe straight branch
End and with the valve body（1）It is tightly connected.
9. check valve according to claim 8, which is characterized in that the non-return component（3）It is set to the valve body（1）'s
In the pipe straight branch, the non-return component（3）The spool（31）It is resisted against the valve seat（2）.
10. check valve according to claim 8, which is characterized in that the regulator（4）The spring base（33）、
The guide rail（41）With the thrust bearing（43）It is set to the valve body（1）The pipe straight branch in, the regulator
（4）Close to the valve deck（5）Place's setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721348549.5U CN207796182U (en) | 2017-10-19 | 2017-10-19 | A kind of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721348549.5U CN207796182U (en) | 2017-10-19 | 2017-10-19 | A kind of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207796182U true CN207796182U (en) | 2018-08-31 |
Family
ID=63273766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721348549.5U Active CN207796182U (en) | 2017-10-19 | 2017-10-19 | A kind of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207796182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654702A (en) * | 2017-10-19 | 2018-02-02 | 上海诺科泵业有限公司 | A kind of check valve |
| CN113739994A (en) * | 2021-08-25 | 2021-12-03 | 成都飞机工业（集团）有限责任公司 | Low-loss temperature and pressure composite sensor air connecting nozzle |
-
2017
- 2017-10-19 CN CN201721348549.5U patent/CN207796182U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654702A (en) * | 2017-10-19 | 2018-02-02 | 上海诺科泵业有限公司 | A kind of check valve |
| CN107654702B (en) * | 2017-10-19 | 2024-05-17 | 上海诺科泵业有限公司 | One-way valve |
| CN113739994A (en) * | 2021-08-25 | 2021-12-03 | 成都飞机工业（集团）有限责任公司 | Low-loss temperature and pressure composite sensor air connecting nozzle |
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