CN206290427U - A kind of stiffness-adjustable one-way valve structures - Google Patents
A kind of stiffness-adjustable one-way valve structures Download PDFInfo
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- CN206290427U CN206290427U CN201621373478.XU CN201621373478U CN206290427U CN 206290427 U CN206290427 U CN 206290427U CN 201621373478 U CN201621373478 U CN 201621373478U CN 206290427 U CN206290427 U CN 206290427U
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- Prior art keywords
- umbrella
- valve
- stiffness
- adjustable
- baffle plate
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Abstract
The utility model discloses a kind of stiffness-adjustable one-way valve structures, including valve body, baffle plate and valve film；The valve film is umbrella-shaped structure, the umbrella-shaped structure that wherein falls is made up of cylindrical section and umbrella cone section, the umbrella cone section is arranged at valve inner, cylindrical section is fixed in the centre bore of valve body right-hand member, the baffle plate is arranged on valve body inner side, and section inside edge is bored in the right side of baffle plate against umbrella, and the valve body outside is cylindrical structural, and two sealing rings are provided with outside cylinder, the valve film is made of silastic material.The utility model, using the elasticity of elastomeric material, realizes the one-way flow of gas by adjusting the structure of rubber valve film；Check valve assembly is formed integrally, convenient dismounting, it is possible to resolve the maintenance sex chromosome mosaicism of product, while decomposing the index of pump, meet seal pressure and the Opening pressure requirement of check valve, the Opening pressure and seal pressure of check valve are adjusted by valve film ensure the uniformity of the Input and Output Indexes of pump.
Description
Technical field
The utility model belongs to check valve technical field, is specifically related to a kind of stiffness-adjustable one-way valve structures.
Background technology
Check valve is the important accessory that gas pump realizes pumping function, and check valve is set by the import and export in pump,
Back flow of gas can be prevented, pumping function is realized.According to requirements, consumable accessory and attrition component should be designed to replaceable knot
Structure, convenient dismounting and in-orbit maintenance.
Dismantled to solve the problems, such as that check valve is convenient, the Chinese patent of Publication No. CN204042091U discloses one kind can
Detachable check valve, including valve body, are provided with fluid passage in valve body, dismountable Valve clack device, flap are provided with fluid passage
Be isolated into for fluid passage and flow into passage and flow pass by device, and the madial wall for flowing into passage is provided with passage internal thread, flap
Device includes the installation valve seat of ring-type, installs valve seat middle part and is provided with valve seat through-hole, and the side for installing valve seat by flow pass is provided with
The flap of the umbrella of fluid passage conducting is may make up, flap is elastomer, and flap is provided with can be opened under Fluid pressure punching press
The flap half-duplex channel for opening, described flap is provided with the reset bullet for closing flap half-duplex channel away from the side for installing valve seat
Spring, the lateral wall for installing valve seat is provided with the valve seat external screw thread matched with passage internal thread.And technical scheme is by installing valve
Seat uses the cooperation of screw thread with valve interior wall, it is possible to use instrument will install valve seat and flap dismounting.But the one-way valve structures
It is direct cementing structure form, by valve film on the valve body, physical dimension is uncontrolled, after the completion of splicing, cracking pressure and close
Envelope property is it has been determined that cracking pressure cannot be adjusted.For low-capacity pump, valve opening is very big to pump export technique Index Influence,
The product discreteness of generally positive batch is very big, and the unqualified situation reprocessed happens occasionally.Solution is also complicated and changeable, causes
Issue handling is difficult, and the requirement to operating personnel is very high, while being unfavorable for the decomposition and control of overall performance index.
Utility model content
The purpose of this utility model is to be difficult to adjust existing deficiency for existing check valve cracking pressure, there is provided
A kind of stiffness-adjustable one-way valve structures.
The utility model is achieved by the following technical programs.
A kind of stiffness-adjustable one-way valve structures, including valve body, baffle plate and valve film；The valve film is the knot of falling umbrella
Structure, wherein umbrella-shaped structure is made up of cylindrical section and umbrella cone section, the umbrella cone section is arranged at valve inner, and cylindrical section is fixed on valve
In the centre bore of body right-hand member, the baffle plate is arranged on valve body inner side, and section inside edge is bored in the right side of baffle plate against umbrella.
The valve body outside is cylindrical structural, and two sealing rings are provided with outside cylinder, and sealing ring is O-shaped close
Seal.
The umbrella cone section is combined and formed by the exumbrella conical surface and the interior umbrella conical surface.
The valve film is made of silastic material, and silastic material shore hardness is 30~40 degree.
The angle of the interior umbrella conical surface is less than the angle of the exumbrella conical surface, and the differential seat angle that the interior umbrella conical surface is formed with the exumbrella conical surface
It is 12 °~20 °.
The angle of the interior umbrella conical surface is 19 °~27 °.
The angle of the exumbrella conical surface is 33.5 °~41 °.
The baffle plate is stepped ring forging structure, and the wherein left end of stepped ring forging is fixed on valve body left end by thread forms,
The right part circular planes of stepped ring forging are contacted with the umbrella cone section outer rim of valve film.
Adjustment packing ring is set between the baffle plate and the screw thread end face of valve body.
The baffle plate inner side is provided with fillet away from valve film side.
The beneficial effects of the utility model are：
Compared with prior art, the utility model is by adjusting the structure of rubber valve film, using the elasticity of elastomeric material,
Realize the one-way flow of gas；Check valve assembly is formed integrally, convenient dismounting, it is possible to resolve the maintenance sex chromosome mosaicism of product, while
The index of pump is decomposed, seal pressure and the Opening pressure requirement of check valve is met, by valve film to the Opening pressure of check valve
Ensure the uniformity of the Input and Output Indexes of pump with the adjustment of seal pressure, the skill to operating personnel is reduced from whole machine angle
Art requirement.Be conducive to the standardization and modularized design of product.Verified by the production of product, can solve the problem that the performance one of product
Cause sex chromosome mosaicism.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A direction views of Fig. 1；
Fig. 3 is the structural representation of valve film in the utility model；
Fig. 4 is the B-B direction view of Fig. 3.
In figure：1- valve bodies, 2- baffle plates, 3- valve films, 4- sealing rings, 5- adjustment packing rings, 21- fillets, 31- cylindrical sections, 32-
Conical section, the 321- exumbrella conical surfaces, the umbrella conical surface in 322-.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed scope be not limited to it is described.
As shown in Figures 1 to 4, a kind of stiffness-adjustable one-way valve structures described in the utility model, including valve body 1, gear
Plate 2 and valve film 3；The valve film 3 is umbrella-shaped structure, wherein umbrella-shaped structure is made up of cylindrical section 31 and umbrella cone section 32,
The umbrella cone section 32 is arranged inside valve body 1, and cylindrical section 31 is fixed in the centre bore of the right-hand member of valve body 1, and the baffle plate 2 is arranged on
The inner side of valve body 1, and the inside edge of section 32 is bored in the right side of baffle plate 2 against umbrella.In actual applications, can be by using liquid-state silicon
The method that rubber is bonded is by the fixed valve body 1 of valve film 3.
The outside of the valve body 1 is cylindrical structural, and two sealing rings 4 are provided with outside cylinder.So, by cylindrical
Two sealing rings 4 and pump housing connection and sealing on post, so that independence is adjusted to the sealing rigidity and Opening pressure of check valve
It is whole, realize the decomposition and control of pump performance indicators.
The umbrella cone section 32 is combined and formed by the exumbrella conical surface 321 and the interior umbrella conical surface 322.
The valve film 3 is made of silastic material, and silastic material shore hardness is 30~40 degree.This technology side
Case, using the elasticity of elastomeric material, realizes the one-way flow of gas by adjusting the structure of rubber valve film 3.
The angle of the interior umbrella conical surface 322 is less than the angle of the exumbrella conical surface 321, and the interior umbrella conical surface 322 and the exumbrella conical surface 321
The differential seat angle of formation is 12 °~20 °；The angle of the wherein interior umbrella conical surface 322 is 19 °~27 °, and the angle of the exumbrella conical surface 321 is
33.5 °~41 °.Angle referred herein refers to the coning angle that the conical surface is formed；Due to differential seat angle so that two umbrella frustoconical bevel angles
Difference so that umbrella cone entity part is formed etc. than thickness difference, so as to obtain the elastic force difference of silastic material, more to umbrella outside
Edge, its elastic force is smaller.When baffle plate 2 is closer to the interior umbrella conical surface 322, the elastic force that valve film 3 is formed on the arc surface of baffle plate 2 is bigger,
Due to the elastic deformation of silastic material, good sealing property can be readily available.
The baffle plate 2 is stepped ring forging structure, and wherein the left end of stepped ring forging is fixed on the left side of valve body 1 by thread forms
End, the right part circular planes of stepped ring forging are contacted with the umbrella cone outer rim of section 32 of valve film 3.
Adjustment packing ring 5 is set between the baffle plate 2 and the screw thread end face of valve body 1.Can be with regulating fender 2 and valve film 3
The distance between interior umbrella conical surface 322, when the interior umbrella conical surface 322 of the baffle plate 2 away from valve film 3, valve film 3 acts on baffle plate 1 to be justified
Elastic force on anchor ring reduces so that the cracking pressure reduction of air-flow, sealing rigidity reduction, on the contrary then cracking pressure increase, sealing
Rigidity increase so that adjust check valve cracking pressure size and sealing rigidity, be allowed to be matched with pump diaphragm realize set flow,
Pressure is adjusted, and reduces power consumption.
The inner side of the baffle plate 2 is provided with fillet 21 away from the side of valve film 3.
The sealing ring 4 is O-ring seal.O-ring seal is the belt rubber seal with circular cross-section, main to use
The leakage of liquids and gases medium is prevented in a static condition in mechanical part, and O-ring seal can also be used as axially reciprocating
With the dynamic sealing element of low-speed rotation.The technical program is connected using O-ring seal on valve body 1 is cylindrical with the pump housing,
So that independence is adjusted to the sealing rigidity and Opening pressure of check valve, with good sealing effectiveness, its sealing effectiveness with
The raising of system pressure and improve.
Using above-mentioned technical proposal, due to the elastic force of rubber, the outer rim of valve film 3 has certain with the end circular loop face of baffle plate 2
Pretightning force, when air-flow flows along valve opening position, gas pressure overcomes the pretightning force of valve film 3, flow direction outlet, in work
When, the import and export of pump are provided in due to the check valve, therefore the pretightning force of valve film 3 is excessive, pump needs in gas return path
Setting up bigger air pressure is used to overcome the pretightning force, so as to increase the pressure loss in gas return path.When gas is intended to reversely return
During stream, initial sealing pressure is formed because the elastic force of valve film 3 acts on the end face of baffle plate 2, so that gas backstreaming is prevented, while working as
Gas backstreaming pressure increases, and pressure increase, seal pressure increase, so as to improve valve film 3 are formed on the diaphragm umbrella conical surface
Seal pressure, can effectively prevent gas backstreaming, so as to realize the one-way flow of gas.
Claims (10)
1. a kind of stiffness-adjustable one-way valve structures, it is characterised in that：Including valve body (1), baffle plate (2) and valve film (3)；It is described
Valve film (3) is to fall umbrella-shaped structure, wherein umbrella-shaped structure is bored section (32) and constitute by cylindrical section (31) and umbrella, the umbrella cone section
(32) it is arranged at valve body (1) internal, cylindrical section (31) is fixed in the centre bore of valve body (1) right-hand member, and the baffle plate (2) is arranged on
Valve body (1) inner side, and section (32) inside edge is bored in the right side of baffle plate (2) against umbrella.
2. a kind of stiffness-adjustable one-way valve structures as claimed in claim 1, it is characterised in that：It is outside the valve body (1)
Cylindrical structural, and two sealing rings (4) are provided with outside cylinder, it is O-ring seal to ask sealing ring (4).
3. a kind of stiffness-adjustable one-way valve structures as claimed in claim 1, it is characterised in that：The umbrella bores section (32) by outer
The umbrella conical surface (321) and the interior umbrella conical surface (322) combination are formed.
4. a kind of stiffness-adjustable one-way valve structures as claimed in claim 1, it is characterised in that：The valve film (3) uses
Silastic material is made, and silastic material shore hardness is 30~40 degree.
5. a kind of stiffness-adjustable one-way valve structures as claimed in claim 3, it is characterised in that：The interior umbrella conical surface (322)
Angle of the angle less than the exumbrella conical surface (321), and the differential seat angle that the interior umbrella conical surface (322) and the exumbrella conical surface (321) are formed is 12 °
~20 °.
6. a kind of stiffness-adjustable one-way valve structures as claimed in claim 5, it is characterised in that：The interior umbrella conical surface (322)
Angle be 19 °~27 °.
7. a kind of stiffness-adjustable one-way valve structures as claimed in claim 5, it is characterised in that：The exumbrella conical surface (321)
Angle be 33.5 °~41 °.
8. a kind of stiffness-adjustable one-way valve structures as claimed in claim 1, it is characterised in that：The baffle plate (2) is step
The left end of circular ring structure, wherein stepped ring forging is fixed on valve body (1) left end, the right part annulus of stepped ring forging by thread forms
Plane is contacted with umbrella cone section (32) outer rim of valve film (3).
9. a kind of stiffness-adjustable one-way valve structures as claimed in claim 1, it is characterised in that：The baffle plate (2) and valve body
(1) adjustment packing ring (5) is set between screw thread end face.
10. a kind of stiffness-adjustable one-way valve structures as claimed in claim 1, it is characterised in that：Baffle plate (2) inner side is remote
Valve film (3) side is provided with fillet (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373478.XU CN206290427U (en) | 2016-12-14 | 2016-12-14 | A kind of stiffness-adjustable one-way valve structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373478.XU CN206290427U (en) | 2016-12-14 | 2016-12-14 | A kind of stiffness-adjustable one-way valve structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290427U true CN206290427U (en) | 2017-06-30 |
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ID=59104610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621373478.XU Active CN206290427U (en) | 2016-12-14 | 2016-12-14 | A kind of stiffness-adjustable one-way valve structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762603A (en) * | 2016-12-14 | 2017-05-31 | 贵州航天林泉电机有限公司 | A kind of stiffness-adjustable check valve |
-
2016
- 2016-12-14 CN CN201621373478.XU patent/CN206290427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762603A (en) * | 2016-12-14 | 2017-05-31 | 贵州航天林泉电机有限公司 | A kind of stiffness-adjustable check valve |
| CN106762603B (en) * | 2016-12-14 | 2018-11-27 | 贵州航天林泉电机有限公司 | A kind of stiffness-adjustable check valve |
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