CN208634446U - Check valve - Google Patents
Check valve Download PDFInfo
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- CN208634446U CN208634446U CN201820871382.9U CN201820871382U CN208634446U CN 208634446 U CN208634446 U CN 208634446U CN 201820871382 U CN201820871382 U CN 201820871382U CN 208634446 U CN208634446 U CN 208634446U
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- valve
- valve seat
- outlet
- valve body
- check valve
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Abstract
The utility model relates to valve technology fields, it include valve body more particularly to a kind of check valve, valve seat and core assembly, the valve body has valve chamber, the core assembly is housed in the valve chamber, it is offered on the valve body with the import entered for fluid media (medium), for the outlet of fluid media (medium) outflow, the import, the outlet is connected to setting with the valve chamber, the valve seat have be oppositely arranged to the first end that is housed in the outlet and with the second end on the outside of the outlet, have between welding between the valve seat and the valve body, solder is filled in the welded gaps, the soldering opening to be connected to setting with the welded gaps is offered on the valve body and/or valve seat, it is welded between the valve body and the second end of the valve seat by gas brazing.Compared with prior art, the check valve advantage is: the temperature of welding is low, is welded into power height；Integral solder position is far from core assembly, so that the influence to core assembly is smaller.
Description
Technical field
The utility model relates to valve technology fields, more particularly to a kind of check valve.
Background technique
Check valve is that fluid can only be flowed along water inlet, and water outlet medium can not but flow back.Check valve be also known as check-valves or
Non-return valve.For preventing oil stream reverse flow in hydraulic system, or for preventing compressed air reverse flow in pneumatic system.
Check valve mainly includes the components such as valve body, valve seat, core assembly.Core assembly is set to the unlatching in valve body to control check valve
Or close, valve seat is arranged and on the valve body.
And for now, largely using welded connecting between the valve body and valve seat of existing check valve, and welding
Cheng Zhong, be easy to cause valve body or valve seat are cracked, cause leakage phenomenon, and weld qualification rate it is low；Secondly, existing valve body with
Welded between valve seat be located proximate to and core assembly, the high temperature welded in welding process will affect the close of the leakproofness of core assembly
Sealing property leads to leakage in check valve.
Utility model content
Based on this, it is necessary in view of the above technical problems, it is high to provide a kind of simple structure, convenient welding and solder yield
Check valve.
In order to achieve the above objectives, the utility model uses following technical proposal: a kind of check valve, including valve body, valve seat
And core assembly, the valve body have valve chamber, the core assembly is housed in the valve chamber, opens up on the valve body useful
The import entered for fluid media (medium), the outlet flowed out for fluid media (medium), the valve chamber are located at the import and the outlet
Between, and with the import, the outlet be arranged, the valve seat have be oppositely arranged to be housed in the outlet
First end and be located at the outlet on the outside of second end, between the valve seat and the valve body have welded gaps, it is described
It is filled with solder in welded gaps, the weldering to be connected to setting with the welded gaps is offered on the valve body and/or valve seat
Interface is welded between the valve body and the second end of the valve seat by gas brazing.
In this application, by will be welded between the valve body and the second end of the valve seat by gas brazing.It can be with
Understand, the core assembly uses gas brazing far from welding position, and the temperature of welding is lower, and in flame pricker
During welding, the core assembly far from welding position, thus reduce because welding when welding temperature to core assembly
It influences, and then improves the qualification rate of welding；Secondly, by setting soldering opening, so that the operation of welding is more convenient.
The cross section of the soldering opening is V-shaped as a further improvement of the utility model, arc or it is trapezoidal in
Any one.
The temperature range of the welding of the gas brazing as a further improvement of the utility model, are as follows: 600 DEG C -680
℃。
The outlet has inner wall as a further improvement of the utility model, and the inner wall of the outlet is equipped with installation
Step, the valve seat have the first end and second end being oppositely arranged, and the first end of the valve seat is resisted against the installation step,
The second end of the valve seat is stretched out from the outlet, and is connect between the inner wall of the outlet by gas brazing.
The valve seat has outer wall, the outer wall of the valve seat and the outlet as a further improvement of the utility model,
Inner wall between have the welded gaps.
It is equipped with baffle as installation step described in further improvement of the utility model, the baffle, which has, to be oppositely arranged
First side and second side, the first end of the valve seat is resisted against the first side of the baffle, and the core assembly connects
It is connected in the second side of the baffle.
The core assembly includes sealing element, spring base, attachment base and bullet as a further improvement of the utility model,
Property part, the attachment base are connected in the second side of the baffle, the spring socket sleeve be located on the attachment base and with institute
It states attachment base to be slidably connected, the elastic component is set on the spring base, and one end of the elastic component is resisted against the gear
In the second side of plate, the other end is resisted against on the spring base, and the sealing element is set on the spring base to control
State unlatching/closing of import.
The spring base is equipped with fixed plate as a further improvement of the utility model, and the sealing element passes through described
Fixed plate is retained on the spring base.
The first connecting tube is connected on the valve body as a further improvement of the utility model, is connected on the valve seat
There is the second connecting tube.
Compared with prior art, the check valve is by will pass through flame between the valve body and the second end of the valve seat
Welding.It is understood that the core assembly is far from welding position, and uses gas brazing, the temperature of welding compared with
It is low, and during gas brazing connects, the core assembly is far from welding position, to reduce welding temperature when because of welding
Influence to core assembly, and then improve the qualification rate of welding；Secondly, by setting soldering opening, so that the operation of welding is more
Add conveniently.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of check valve provided by the utility model；
Fig. 2 is check valve cross-sectional view provided by the utility model；
Fig. 3 is the valve body structure schematic diagram that the utility model supplies；
Fig. 4 is valve seat construction schematic diagram provided by the utility model；
Fig. 5 is the enlarged drawing in Fig. 2 of the utility model confession at A；
Fig. 6 is another example structure schematic diagram provided by the utility model；
Fig. 7 is the enlarged drawing in Fig. 6 of the utility model confession at B.
In figure, check valve 100, welded gaps 101, valve body 10, valve chamber 11, the first end 12 of valve body, the second end of valve body
13, import 14, the first connecting tube 141, outlet 15, the inner wall 15a of outlet, installation step 15b, baffle 151, through-hole 151a, gear
The first side 151b of plate, the second side 151c of baffle, valve seat 20, the first end 21 of valve seat, the second end of valve seat 22, second
Connecting tube 221, connecting hole 23, soldering opening 24, the outer wall 25 of valve seat, core assembly 30, sealing element 31, spring base 32, fixed plate
321, attachment base 33, elastic component 34.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that it can be directly on another component when component is referred to as " being installed in " another component
Or there may also be components placed in the middle.When a component is considered as " being set to " another component, it, which can be, is directly set
Set on another component or may be simultaneously present component placed in the middle.When a component is considered as " being fixed on " another group
Part, it, which can be, is directly anchored on another component or may be simultaneously present component placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
Any and all combinations of one or more related listed items.
Referring to Fig. 1, the utility model provides a kind of check valve 100, the check valve 100 in hydraulic system to prevent
Oil stream reverse flow, or to prevent compressed air reverse flow in pneumatic system.In the present embodiment, the check valve
100 be non-return valve for vehicle, to prevent air conditioning for automobiles compressed air reverse flow.
Referring to Fig. 2, the check valve 100, including valve body 10, valve seat 20 and core assembly 30.The valve body 10 has
There is valve chamber 11, the core assembly 30 is housed in the valve chamber 11, to realize conducting or the pass of the check valve 100
It closes, the valve seat 20 is sheathed on the valve body 10.
Referring to Fig. 3, the valve body 10 is cylindrical in shape.Certainly, in other embodiments, the valve body 10 can also be in other
Shape, such as: it is rectangular etc..Preferably, the valve body 10 is by aluminium casting and forming.
The valve body 10 has the first end 12 and second end 13 being oppositely arranged, and the second end 12 of the valve body is far from institute
State the setting of core assembly 30.The valve seat 20 is sheathed on the second end 13 of the valve body.
Offered on the valve body 10 with the import 14 entered for fluid media (medium) and with for flow of fluid medium go out
Outlet 15.The valve chamber 11 is connected to setting with the import 14, the outlet 15.The fluid media (medium) from the import 14 into
Enter, under the control of the core assembly 30 after the valve chamber 11, from 15 outflow of outlet.
Herein, the fluid media (medium) includes gas, liquid etc..
Further, the import 14 is located at the first end 12 of the valve body, and the outlet 15 is located at the of the valve body
Two ends 13.20 partial receipt of valve seat is tightly connected in the outlet 15, and between the outlet 15.
The first connecting tube 141 is connected at the import 14, first connecting tube 141 is exterior line connection.At this
In embodiment, inserting type interface is equipped at the import 14, to realize between first connecting tube 141 and the import 14
Push-in connection.Certainly, in other embodiments, first connecting tube 141 can be passes through between the import 14
The modes such as welding connect.
The outlet 15 has inner wall 15a, has installation step 15b on the inner wall 15a of the outlet.The valve seat 20 is received
Hold in the outlet 15 and on the installation step 15b.Further, the installation step 15b is equipped with baffle 151.Institute
It states and offers through-hole 151a on baffle 151.The through-hole 151a between the valve chamber 11 and the valve seat 20 will be connected to.
Preferably, the baffle 151 has the first side 151b and second side 151c being oppositely arranged, the valve seat 20
It is housed in the outlet 15 and with the first side 151b of the baffle against the core assembly 30 is connected to the baffle
Second side 151c on.
Referring to Fig. 4, the valve seat 20 is cylindrical in shape.The valve seat 20 is by aluminium casting and forming.
The valve seat 20 has the first end 21 and second end 22 being oppositely arranged.The first end 21 of the valve seat is resisted against
The first side 151b of the baffle, the second end 22 of the valve seat stretch out the outlet 15, and the inner wall 15a with the outlet
Between be tightly connected.
Connecting hole 23 is offered on the valve seat 20, the connecting hole 23 is connected by the through-hole 151a and the valve chamber 11
It is logical, so that fluid media (medium) enters from the import 15, under the control of the core assembly 30, by the valve chamber 11 and
Through-hole 151a is flowed out from the connecting hole 23.
Preferably, the connecting hole 23 is stepped hole.The aperture of the connecting hole 23, from the first end 21 of the valve body to
The second end 22 of the valve body is successively successively decreased.
Further, the second end 22 of the valve seat is equipped with the second connecting tube 221, and second connecting tube 221 is outside
Pipeline.Second connecting tube 221 is connected in the connecting hole 23.Preferably, it is equipped in the connecting hole 23 push-in
Interface is to realize the quick connection of second connecting tube 221.
Fig. 2, Fig. 3 and Fig. 5 are please referred to, is had between the second end 22 of the valve seat and the second end 13 of the valve body
Welded gaps 101.Solder is filled in the welded gaps 101.It is opened up in the second end 13 and/or valve seat 20 of the valve body
There is the soldering opening 24 for being connected to setting with the welded gaps 101, passes through between the valve seat 20 and the second end 13 of the valve body
Gas brazing welding.It is understood that will be welded between the valve seat 20 and the second end 13 of the valve body using gas brazing
Connect, and since the temperature of welding is lower, and during gas brazing connects, the core assembly 30 far from welding position, from
And reduce influence of the welding temperature to core assembly 30 when because of welding, improve the qualification rate of product.
Further, in the present embodiment, the solder is solder.The temperature range of the gas brazing welding are as follows: 600
℃-680℃.Preferably: 650 DEG C.
And will be welded between valve body 10 and valve seat 20 using argon arc welding in the prior art, temperature when argon arc welding welding is reachable
To 10000 DEG C or more, so that the valve body 10, the valve seat 20 be easy to cause to crack, the leakage of check valve 100 is caused；
And the welding at a temperature of, will affect the sealing element of core assembly, cause the interior leakage of the check valve 100.Herein, fixed
Justice: it is high temperature that welding temperature, which is more than 1500 DEG C,.
Further, the valve seat 20 has outer wall 25.The valve seat 20 is installed in the outlet 15.The valve seat
There are the welded gaps 101 between outer wall 25 and the inner wall 15a of the outlet.
Referring to Fig. 5, in one embodiment, being equipped at the outlet 15 of the valve body 10 and being connected to the welded gaps 101
The soldering opening 24.The cross section of the soldering opening 24 is V-shaped, arc or it is trapezoidal in any one.Certainly, described
Soldering opening 24 can also be other shapes, in the present invention with no restriction.Preferably, in the present embodiment, the welding
The cross section of mouth 24 is V-shaped.And by setting soldering opening 24, so that the operation of welding is more convenient.
Fig. 6 and Fig. 7 is please referred to, in another embodiment, is offered between the welding on the outer wall 25 of the valve seat
The soldering opening 24 that gap 101 is connected to.Equally, the cross section of the soldering opening 24 is V-shaped, arc or it is trapezoidal in it is any
It is a kind of.And in the present embodiment, the cross section of the soldering opening 24 is arc-shaped.
In other embodiments, the soldering opening 24 can be set in the valve body 10 and the valve seat 20.
Referring to Fig. 2, the core assembly 30 includes sealing element 31, spring base 32, attachment base 33 and elastic component 34.Institute
Sealing element 31 is stated on the spring base 32 to control unlatching/closing of the import 14, to realize the check valve
100 unlatching/closing.
The attachment base 33 is connected on the second side 151b of the baffle.The spring base 32 is set in the connection
It is slidably connected on seat 33 and between the attachment base 33.The elastic component 34 is set on the spring base 32.Further,
The elastic component 34 has the first end and second end being oppositely arranged, and the first end of the elastic component 34 is resisted against the baffle
On second side 151b, the second end of the elastic component 34 is resisted against on the spring base.
The spring base 32 is equipped with fixed plate 321, and the fixed plate 321 is set to the spring base 32 far from the baffle
151 side.The sealing element 31 is retained on the spring base 32 by the fixed plate 321.
The working principle of the check valve 100 is as follows:
The fluid media (medium) enters from the import 14, and the elastic component 34 is overcome under the pressure of the fluid media (medium)
Elastic force and compress the elastic component 34, the sealing element 31, which is pushed open, is connected to the import 14 with valve chamber 11, described in realization
The unlatching of check valve 100.It is described close under the restoring force effect of the elastic component 34 when the pressure reduction that the import 14 goes out
Sealing 31 resets, and the import 14 is blocked, realizes the closing of the check valve 100.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Several embodiments of the utility model above described embodiment only expresses, the description thereof is more specific and detailed, but
It cannot be understood as the limitations to utility model patent range.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of check valve, including valve body, valve seat and core assembly, the valve body has valve chamber, the core assembly receiving
In the valve chamber, offered on the valve body with the import entered for fluid media (medium), for the outlet of fluid media (medium) outflow, institute
Valve chamber is stated between the import and the outlet, the import, the outlet are connected to setting with the valve chamber, and feature exists
In, the valve seat have be oppositely arranged to the first end that is housed in the outlet and be located on the outside of the outlet
Second end has welded gaps, is filled with solder, the valve body in the welded gaps between the valve seat and the valve body
And/or it is offered on valve seat to be connected to the soldering opening being arranged, the valve body and the second of the valve seat with the welded gaps
It is welded between end by gas brazing.
2. check valve according to claim 1, which is characterized in that the cross section of the soldering opening is V-shaped, arc or
Any one in trapezoidal.
3. check valve according to claim 1, which is characterized in that the temperature range of the welding of the gas brazing are as follows: 600
℃-680℃。
4. check valve according to claim 1, which is characterized in that described export has inner wall, on the inner wall of the outlet
Equipped with installation step, the valve seat has the first end and second end being oppositely arranged, and the first end of the valve seat is resisted against described
The second end of installation step, the valve seat is stretched out from the outlet, and is connected between the inner wall of the outlet by gas brazing
It connects.
5. check valve according to claim 4, which is characterized in that the valve seat have outer wall, the outer wall of the valve seat with
There are the welded gaps between the inner wall of the outlet.
6. check valve according to claim 4, which is characterized in that the installation step is equipped with baffle, the baffle tool
There are the first side and second side being oppositely arranged, the first end of the valve seat is resisted against the first side of the baffle, described
Core assembly is connected in the second side of the baffle.
7. check valve according to claim 6, which is characterized in that offered on the baffle to be connected to the valve chamber
Through-hole, offer the connecting hole being connected to the through-hole on the valve seat.
8. check valve according to claim 6, which is characterized in that the core assembly includes sealing element, spring base, connection
Seat and elastic component, the attachment base are connected in the second side of the baffle, and the spring socket sleeve is located at the attachment base
Upper and be slidably connected with the attachment base, the elastic component is set on the spring base, and one end of the elastic component against
On the baffle, the other end is resisted against on the spring base, and the sealing element is set on the spring base described to control
Unlatching/closing of import.
9. check valve according to claim 8, which is characterized in that the spring base is equipped with fixed plate, the sealing element
It is retained on the spring base by the fixed plate.
10. check valve according to claim 1, which is characterized in that the entrance is connected with the first connecting tube, the valve
The second connecting tube is connected on seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820871382.9U CN208634446U (en) | 2018-06-06 | 2018-06-06 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820871382.9U CN208634446U (en) | 2018-06-06 | 2018-06-06 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208634446U true CN208634446U (en) | 2019-03-22 |
Family
ID=65733829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820871382.9U Active CN208634446U (en) | 2018-06-06 | 2018-06-06 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208634446U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594123A (en) * | 2019-08-19 | 2019-12-20 | 奇鋐科技股份有限公司 | Water-cooling pump structure with check valve and water-cooling module thereof |
| CN113513608A (en) * | 2020-04-10 | 2021-10-19 | 盾安环境技术有限公司 | Combination valve |
| CN114370515A (en) * | 2021-12-28 | 2022-04-19 | 浙江银轮机械股份有限公司 | Flow passage plate structure |
-
2018
- 2018-06-06 CN CN201820871382.9U patent/CN208634446U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594123A (en) * | 2019-08-19 | 2019-12-20 | 奇鋐科技股份有限公司 | Water-cooling pump structure with check valve and water-cooling module thereof |
| CN113513608A (en) * | 2020-04-10 | 2021-10-19 | 盾安环境技术有限公司 | Combination valve |
| CN114370515A (en) * | 2021-12-28 | 2022-04-19 | 浙江银轮机械股份有限公司 | Flow passage plate structure |
| CN114370515B (en) * | 2021-12-28 | 2024-05-28 | 浙江银轮机械股份有限公司 | Flow passage plate structure |
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