CN208348586U - Straight-through double check valve - Google Patents
Straight-through double check valve Download PDFInfo
- Publication number
- CN208348586U CN208348586U CN201820749781.8U CN201820749781U CN208348586U CN 208348586 U CN208348586 U CN 208348586U CN 201820749781 U CN201820749781 U CN 201820749781U CN 208348586 U CN208348586 U CN 208348586U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- valve body
- double check
- sealing cover
- 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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- Check Valves (AREA)
Abstract
The utility model discloses a kind of straight-through double check valves, including valve body, the inlet and outlet at valve body both ends are equipped with connection structure, the check-valves further includes the second spool damper assembly set on interior the first spool damper assembly for being used for through compressional deformation and resetting open-close valve inner passage of valve body and for being opened and closed the first valve core inside channel in the first spool damper assembly by stress compressional deformation and reset, and first valve core inside channel is connected to valve body internal passage.The utility model can be realized the effect of valve dual check, and the valve mechanism is simple, and easy to implement, use scope is wider.
Description
Technical field
The utility model belongs to liquid valve technical field, and in particular to a kind of straight-through double check valve.
Background technique
Valve used at present is largely only applicable to the disengaging of a flow medium, to be applied to Jie of two or more flows
The method of matter disengaging has: first is that valve group is used, second is that using multiple-way valve.They are to combine composition with several single valves, knot
Structure is simpler, but too heavy, operates cumbersome.The valve used now is all much on spool using multiple and different flows
Channel come realize different demands flow adjust.
CN104633150A discloses a kind of pull-type water diversion volume variable valve, it includes valve body, spool；Valve body is cylinder
Shape, the middle position of valve body are machined with the installation through-hole through axis, are machined with two or more on spool and run through
The adjusting through-hole that valve core axis' diameter gradually changes, spool are assemblied in the installation through-hole, each adjusting through-hole on spool
All design the limiting slot having along spool circumferential direction in top；The valve body upper design has dragging track, dress inside the dragging track
Equipped with spacing head, the tail portion of the spacing head, which is compressed by pressure spring with the end of dragging track, to be connected, by spacing head to spool
Limit assembly is carried out in limit groove location.In the valve, each adjusting through-hole can assembly corresponding with limbers respectively, due to
The diameter of adjustment hole is different, can adjust step by step to valve max water yield.But that there are structures is more complicated for the valve, adjusts
The defects of journey is cumbersome, and sensitivity is poor, and its effect that cannot achieve dual check.It does not occur and is not required in the prior art
Very important person is the opening and closing of operation control valve door, two-way to pass in and out fluid, and realizes the single valve knot of dual check effect
Structure.
Summary of the invention
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
For a kind of straight-through double check valve, it is therefore an objective to realize two-way disengaging fluid by single valve body structure, and there is dual check
Effect.
To achieve the goals above, the technical solution that the utility model is taken are as follows:
A kind of straight-through double check valve, including valve body, the inlet and outlet at valve body both ends are equipped with connection structure, the check-valves
It further include in valve body for the first spool damper assembly and use by compressional deformation and reset open-close valve inner passage
The second spool damping in the first valve core inside channel in through stress compressional deformation and reset the first spool damper assembly of opening and closing
Component, first valve core inside channel are connected to valve body internal passage.
The first spool damper assembly is including the first sealing cover, the first spool and is located in the first sealing cover and the first valve
The first damper between core, first sealing cover are equipped with first through hole, and valve body is equipped with and the end thereof contacts of the first spool
First contact surface, the first spool squeezes closed valve inner passage by stress, and the first damper can drive the first spool shape
Become and resets.
First contact surface is cascaded surface.
The check-valves further includes being coated at the first spool and being set between the first contact surface and the contact jaw of the first spool
The first sealing ring.
The second spool damper assembly is including the second spool, the second sealing cover and is located in the second sealing cover and the second valve
The second damper between core, second sealing cover is equipped with the second through-hole, and the second sealing cover is set to the first spool away from the
One end of one contact surface, the first spool are equipped with the second contact surface with the end thereof contacts of the second spool, and the second spool passes through stress
The first valve core inside channel of closing is squeezed, and the second damper can drive the second spool deformation to reset.
The check-valves further includes being coated at the second spool and being set between the second contact surface and the contact jaw of the second spool
The second sealing ring.
Second contact surface is cascaded surface.
The connection structure is internal thread structure.
One or more channels are equipped between the inlet and outlet and connector at the valve body both ends.
The valve body is cylindrical shape.
The utility model has the beneficial effects that the utility model can make corresponding under extraneous fluid material effect
Spool is opened, so that it is two-way by this valve to can be realized raw material, the effect of realization valve dual check is not needing artificial behaviour
Make the unlatching and closure of control valve, can effectively improve the efficiency of production.The valve mechanism is simple, easy to implement, uses
Range is wider.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram that the second spool of the utility model is opened；
Fig. 2 is the structural schematic diagram that the first spool of the utility model is opened.
In the figure, it is marked as
1, valve body, the 2, first sealing cover, the 3, first spool, the 4, first damper, the 5, first sealing ring, the 6, second spool,
7, the second sealing cover, the 8, second damper, the 9, first connector, the 10, second connector.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation, it is therefore an objective to help those skilled in the art to the design of the utility model, technical solution have it is more complete, accurate and
Deep understanding, and facilitate its implementation.
As shown in Figure 1 to Figure 2, a kind of straight-through double check valve, including valve body 1, valve body 1 can be cylindrical shape, valve body 1
The inlet and outlet at both ends are equipped with connection structure, which is preferably internal thread structure, when processing, by the both ends of valve body along axis
To the thread head of direction processing connection；The double check valve further includes being set in valve body 1 for by compressional deformation and reset
First spool damper assembly of open-close valve inner passage and for by stress compressional deformation and reset opening and closing the first spool resistance
The second spool damper assembly in the first valve core inside channel in Buddhist nun's component, the first valve core inside channel and valve body internal passage connect
It is logical.When the first spool damper assembly is by fluid compression, the first spool and valve body are closed, and the in the second spool damper assembly
Two spools not with the contact face contact of the first spool so that the first valve core inside channel conductive；When the second spool damper assembly by
When to fluid compression, the contact surface contact closure of the second spool and the first spool, the first spool separates with the contact surface of valve body, makes
Obtain valve body internal passage conducting.
First spool damper assembly is including the first sealing cover 2, the first spool 3 and is located in the first sealing cover 2 and the first valve
The first damper 4 between core 3, the first sealing cover 2 are equipped with first through hole, and valve body 1 is equipped with and the end thereof contacts of the first spool 3
First contact surface, the first spool 3 squeezes closed valve inner passage by stress, and the first damper 4 can drive the first spool 3
Deformation resets.Preferably, the first contact surface is cascaded surface.First damper preferably using can deformation reset spring-damper.
First sealing cover can be connect with valve interior surface for the mode being threadedly coupled, and the first spool is close by the first damper and first
Capping connection, when compress the first damper, the first contact surface of the first spool disengaging valve body, when the first spool stress is smaller or
When person does not stress, the first spool returns to original position by the reset response reset of the first damper.
In order to guarantee that the sealing effect between the first spool and valve body contact face, above-mentioned double check valve further include being coated at
First spool 3 and the first sealing ring 5 being set between the first contact surface and the contact jaw of the first spool 3.Specifically, being
First sealing ring is installed in one spool and valve body contact part.
Second spool damper assembly is including the second spool 6, the second sealing cover 7 and is located in the second sealing cover 7 and the second valve
The second damper 8 between core 6, the second sealing cover 7 is equipped with the second through-hole, and the second sealing cover 7 is set to the first spool 3 away from the
One end of one contact surface, the first spool 3 are equipped with the second contact surface with the end thereof contacts of the second spool 6, the second spool 6 by by
Power squeezes the first valve core inside channel of closing, and the second damper 8 can drive 6 deformation of the second spool to reset.Preferably, it second connects
Contacting surface is cascaded surface.Second damper also, it is preferred that using can deformation reset spring-damper.Second sealing cover and the first valve
In-core surface can connect for the mode being threadedly coupled, and the second spool is connect by the second damper with the second sealing cover, set
When setting, the first sealing cover and the second sealing cover are located near the both ends of valve body, specifically, the first sealing cover is screwed
It being connected in the inner passage of valve body one end, the threaded connection of the second sealing cover is fixed in one end inner passage of the first spool,
This fixes first spool one end of the second sealing cover and the valve body other end is close.When compressing the second damper, the second spool is de-
From the second contact surface with the first spool, when the second spool stress is smaller or does not stress, the second spool passes through the second damping
The reset response reset of device returns to original position.Made by the cooperation of the first spool damper assembly and the second spool damper assembly
With realization valve dual check effect.
In order to guarantee that the sealing effect between the second spool and the first valve body contact face, lid double check valve further include housing
In the second spool 6 and set on the second sealing ring between the second contact surface and the contact jaw of the second spool 6.Specifically, be
First spool and the second spool contact portion install second sealing ring.
In use, valve body one end is threadedly coupled with the first connector 9, the valve body other end and 10 screw thread of the second connector connect
It connects, one or more channels can be equipped between the inlet and outlet and connector at valve body both ends.The setting in channel is according to specific need
It is selected, as a kind of more preferably set-up mode, two passes is set in the connecting pin of the first connector and valve body, the
A channel is arranged in the connecting pin of two connectors and valve body.
The working principle of the straight-through double check valve is as follows:
One, when valve body upper end, raw material is more, and when pressure is larger, fluid material can squeeze the second spool 6, makes its closing the
One valve core inside channel, and then the first damper 4 is compressed, it is thus to realize valve from top to bottom that the first spool 3, which moves down,
On state, when raw material reduce, pressure reduce when, the first spool 3 resets under the action of the first damper 4.
Two, when valve body lower end raw material is more, when pressure is larger, fluid material can squeeze the first spool 3, make its closing with
The channel of valve body contact end face, and then the second damper 8 is compressed, the second spool 6 moves up, and is thus to realize valve under
On state on and, when raw material is reduced, and pressure reduces, the second spool 6 resets under the action of the second damper 8.
The utility model is exemplarily described in conjunction with attached drawing above.Obviously, the utility model implements not
It is limited by aforesaid way.As long as the various unsubstantialities that the method concept and technical solution that use the utility model carry out
Improvement；Or it is not improved, the above-mentioned conception and technical scheme of the utility model are directly applied into other occasions, at this
Within the protection scope of utility model.
Claims (10)
1. a kind of straight-through double check valve, including valve body, the inlet and outlet at valve body both ends are equipped with connection structure, it is characterised in that:
The check-valves further includes in valve body for the first spool resistance by compressional deformation and reset open-close valve inner passage
Buddhist nun's component and for by stress compressional deformation and resetting the of the first valve core inside channel in the first spool damper assembly of opening and closing
Two spool damper assemblies, first valve core inside channel are connected to valve body internal passage.
2. leading directly to double check valve according to claim 1, it is characterised in that: the first spool damper assembly includes first
Sealing cover, the first spool and the first damper being located between the first sealing cover and the first spool, first sealing cover are set
There is first through hole, valve body is equipped with the first contact surface with the end thereof contacts of the first spool, and the first spool is squeezed by stress and closed
Valve body internal passage, and the first damper can drive the first spool deformation to reset.
3. leading directly to double check valve according to claim 2, it is characterised in that: first contact surface is cascaded surface.
4. leading directly to double check valve according to claim 2, it is characterised in that: the check-valves further includes being coated at the first valve
Core and the first sealing ring being set between the first contact surface and the contact jaw of the first spool.
5. leading directly to double check valve according to claim 2, it is characterised in that: the second spool damper assembly includes second
Spool, the second sealing cover and the second damper being located between the second sealing cover and the second spool, second sealing cover are set
There is the second through-hole, and the second sealing cover is set to one end that the first spool deviates from the first contact surface, the first spool is equipped with and the second valve
Second contact surface of the end thereof contacts of core, the second spool squeeze the first valve core inside channel of closing, and the second damping by stress
Device can drive the second spool deformation to reset.
6. leading directly to double check valve according to claim 5, it is characterised in that: the check-valves further includes being coated at the second valve
Core and the second sealing ring being set between the second contact surface and the contact jaw of the second spool.
7. leading directly to double check valve according to claim 5, it is characterised in that: second contact surface is cascaded surface.
8. leading directly to double check valve according to claim 1, it is characterised in that: the connection structure is internal thread structure.
9. leading directly to double check valve according to claim 1, it is characterised in that: the inlet and outlet and connector at the valve body both ends
Between be equipped with one or more channels.
10. according to claim 1 to any one of 9 straight-through double check valves, it is characterised in that: the valve body is cylinder
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749781.8U CN208348586U (en) | 2018-05-21 | 2018-05-21 | Straight-through double check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749781.8U CN208348586U (en) | 2018-05-21 | 2018-05-21 | Straight-through double check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348586U true CN208348586U (en) | 2019-01-08 |
Family
ID=64889800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820749781.8U Expired - Fee Related CN208348586U (en) | 2018-05-21 | 2018-05-21 | Straight-through double check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368432A (en) * | 2021-06-29 | 2021-09-10 | 安徽省国发石化设备有限责任公司 | Fire control unit based on full flexible hose |
-
2018
- 2018-05-21 CN CN201820749781.8U patent/CN208348586U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368432A (en) * | 2021-06-29 | 2021-09-10 | 安徽省国发石化设备有限责任公司 | Fire control unit based on full flexible hose |
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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 |
Granted publication date: 20190108 Termination date: 20190521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |