CN109084057A - A kind of nut check valve - Google Patents
A kind of nut check valve Download PDFInfo
- Publication number
- CN109084057A CN109084057A CN201811187911.4A CN201811187911A CN109084057A CN 109084057 A CN109084057 A CN 109084057A CN 201811187911 A CN201811187911 A CN 201811187911A CN 109084057 A CN109084057 A CN 109084057A
- Authority
- CN
- China
- Prior art keywords
- cavity
- nut
- sealing ring
- spool
- inner cavity
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 208000002925 dental caries Diseases 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 claims 2
- 238000003466 welding Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 12
- 238000004378 air conditioning Methods 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 5
- 239000003507 refrigerant Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of nut check valves, including valve body, the inner cavity of the valve body successively offers the first cavity, the second cavity, third cavity, the 4th cavity and the 5th cavity from left to right, the inner cavity of the third cavity is provided with spool, the left end of the spool extends to the inner cavity of the second cavity, the surface of the spool is arranged with the first sealing ring, washer is provided on the left of first sealing ring, the washer is set in the surface of spool, the surface of the spool and be located at the first sealing ring on the right side of be arranged with spring, the inner cavity of spool is provided with guide post.The present invention is not limited by the space of process equipment, it reduces costs, solving most of check valve in the automobile-used air-conditioning system of current electric car is using welded structure, that is left valve barrel and adapter tube is welded using flame, right valve barrel and adapter tube are welded using flame, the problem of whole argonaut welding connects check valve again, processes very complicated, and fraction defective greatly increases.
Description
Technical field
The present invention relates to check valve technical field, specially a kind of nut 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, and be commonly called as check valve.Check valve is again
Claim check-valves or non-return valve.It is empty for preventing oil stream reverse flow in hydraulic system, or for preventing from compressing in pneumatic system
Gas 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.Right angle
Formula check valve has threaded connection, board-like connection and three kinds of forms of flanged joint.
In the automobile-used air-conditioning system of electric car, check valve has become indispensable component part, check valve installation
In the exhaust ports of compressor, compressor reverse rotation when for preventing from shutting down, or prevent refrigerant from flowing to not from the compressor of operating
The compressor of operating, most of check valve is using welded structure, i.e. left valve barrel in the automobile-used air-conditioning system of electric car at present
It is welded with adapter tube using flame, right valve barrel and adapter tube are welded using flame, are then reloaded into the components such as spool, then whole automatic argon
Arc welding check valve is influenced due to being connect the device space by argonaut welding, and adapter tube is necessary for when welding with left valve barrel, right valve barrel
Straight tube, bend pipe can not just weld, and check valve and first two pipe nipples of check valve be carried out with bend pipe, at cleaning when piping connection
Reason, to keep check valve connecting line more complicated cumbersome, and fraction defective can greatly increase.
Summary of the invention
The purpose of the present invention is to provide a kind of nut check valves, have check valve reliable in quality, avoid welding, make curved
Plumber's skill is simpler, and quality is relatively reliable, and the lower advantage of cost solves in the automobile-used air-conditioning system of current electric car
Most of check valve is using welded structure, i.e. left valve barrel and adapter tube is welded using flame, and right valve barrel and adapter tube use flame
The problem of welding, then whole argonaut welding connect check valve, process very complicated, and fraction defective greatly increases.
To achieve the above object, the invention provides the following technical scheme: a kind of nut check valve, including valve body, the valve
The inner cavity of body successively offers the first cavity, the second cavity, third cavity, the 4th cavity and the 5th cavity from left to right, described
The inner cavity of third cavity is provided with spool, and the left end of the spool extends to the inner cavity of the second cavity, the surface set of the spool
Equipped with the first sealing ring, washer is provided on the left of first sealing ring, the washer is set in the surface of spool, the valve
The surface of core and be located at the first sealing ring on the right side of be arranged with spring, the inner cavity of the spool is provided with guide post, the guide post
Right side extends to the inner cavity of the 4th cavity, and one end that the guide post is located at the 4th cavity inner cavity is arranged with baffle, and the described 4th is empty
The inner cavity of chamber is provided with retaining ring, and the retaining ring is located at the right side of baffle, the left side of the retaining ring and the right contact of baffle, described
The surface of baffle offers through-hole.
Preferably, the right side of first cavity is connected to the left side of the second cavity, the right side of second cavity and the
The left sides of three cavitys is connected to, and the right side of the third cavity is connected to the left side of the 4th cavity, the right side of the 4th cavity and
The left side of 5th cavity is connected to, and the diameter of the 5th cavity is greater than the diameter of the first cavity, and the diameter of first cavity is big
In the diameter of the second cavity.
Preferably, the diameter of first sealing ring is greater than the diameter of washer, the left side of first sealing ring and washer
Right contact, the washer is located at the inner cavity of the second cavity, and the left end of the spool is fixedly connected with pillar, and described first is close
Seal and washer are set in the surface of pillar.
Preferably, the diameter of the spring is greater than the diameter of guide post, and the left end of the spring is contacted with spool, the spring
Right end and baffle left contact, the quantity of the through-hole is three, and the fretwork area of the retaining ring inner hole is greater than in baffle
Fretwork area.
Preferably, the first nut is arranged on the left of the valve body, the inner wall of first nut is provided with internal screw thread, institute
It states and is provided with external screw thread compatible with the first nut on the left of valve body surface, the valve body is connect with the first nut thread, institute
The inner cavity for stating the first cavity is provided with the first adapter tube, and the left end of first adapter tube through the first nut and extends to the first nut
Left side.
Preferably, the surface that first adapter tube is located at first nut intracavity one end is fixedly connected with first boss rank, institute
The inner wall for stating the first nut offers first step slot compatible with first boss rank, and the first boss rank connects far from first
The side of pipe extends to the inner cavity of first step slot.
Preferably, the surface that first adapter tube is located at first cavity inner cavity one end offers the first groove, and described first
The inner cavity of groove is provided with the second sealing ring, and the side of second sealing ring is contacted with the inner wall of the first groove, and described second
Side of the sealing ring far from the first groove inner wall is contacted with the inner wall of the first cavity.
Preferably, the second nut is arranged on the right side of the valve body, the inner wall of second nut is provided with internal screw thread, institute
It states and is provided with external screw thread compatible with the second nut on the right side of valve body surface, the valve body is connect with the second nut thread, institute
The inner cavity for stating the 5th cavity is provided with the second adapter tube, and the right end of second adapter tube through the second nut and extends to the second nut
Right side.
Preferably, the surface that second adapter tube is located at second nut intracavity one end is fixedly connected with second boss rank, institute
The inner wall for stating the second nut offers second step slot compatible with second boss rank, and the second boss rank connects far from second
The side of pipe extends to the inner cavity of second step slot.
Preferably, the surface that second adapter tube is located at second cavity inner cavity one end offers the second groove, and described second
The inner cavity of groove is provided with third sealing ring, and the side of the third sealing ring is contacted with the inner wall of the second groove, the third
Side of the sealing ring far from the second groove inner wall is contacted with the inner wall of the 5th cavity.
Compared with prior art, beneficial effects of the present invention are as follows:
1, the present invention by valve body, spool, the first sealing ring, washer, spring, guide post, baffle, retaining ring, through-hole, the first nut,
The cooperation of first adapter tube, the second nut and the second adapter tube, eliminates the welding of previous valve body and connecting tube, using integrative valve body
The structure of built-in retaining ring, part overheat when avoiding welding in check valve and the risk damaged reduce welding and corresponding clear
Process is washed, more environmentally-friendly, check valve reliable in quality avoids welding, keeps bent tube technique simpler, and quality is relatively reliable, system
Make more convenient, is not limited, reduced costs by the space of process equipment, solved in the automobile-used air-conditioning system of current electric car
Most of check valve is using welded structure, i.e. left valve barrel and adapter tube is welded using flame, and right valve barrel and adapter tube use flame
The problem of welding, then whole argonaut welding connect check valve, process very complicated, and fraction defective greatly increases.
2, the present invention enhances the leakproofness between spool and the second cavity, passes through setting by the first sealing ring of setting
Support can be fixed to the first sealing ring in washer, by the way that the first nut is arranged, convenient for the first adapter tube of connection, pass through setting
Second nut enhances the first adapter tube and the first sky by the first groove of setting and the second sealing ring convenient for the second adapter tube of connection
Leakproofness between cavity wall is enhanced between the 5th cavity and the second adapter tube by the second groove of setting and third sealing ring
Leakproofness.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is valve body of the present invention and the first adapter tube attachment structure schematic diagram.
Fig. 3 is valve body structure cross-sectional view of the present invention.
Fig. 4 is baffle side structure schematic view of the present invention.
Fig. 5 is retaining ring side structure schematic view of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Fig. 1-5 is please referred to, the present invention includes valve body 1, and the inner cavity of valve body 1 successively offers the first cavity 2, from left to right
Two cavitys 3, third cavity 4, the 4th cavity 5 and the 5th cavity 6, the inner cavity of third cavity 4 are provided with spool 7, the left end of spool 7
The inner cavity of the second cavity 3 is extended to, the surface of spool 7 is arranged with the first sealing ring 8, and the left side of the first sealing ring 8 is provided with pad
Circle 9, washer 9 are set in the surface of spool 7, the surface of the spool 7 and right side for being located at the first sealing ring 8 is arranged with spring 10, valve
The inner cavity of core 7 is provided with guide post 11, and the right side of guide post 11 extends to the inner cavity of the 4th cavity 5, and guide post 11 is located in the 4th cavity 5
One end of chamber is arranged with baffle 12, and the inner cavity of the 4th cavity 5 is provided with retaining ring 13, and retaining ring 13 is located at the right side of baffle 12, retaining ring
13 left side and the right contact of baffle 12, the surface of baffle 12 offer through-hole 14, the right side of the first cavity 2 and the second cavity
3 left side connection, the right side of the second cavity 3 are connected to the left side of third cavity 4, the right side of third cavity 4 and the 4th cavity 5
Left side connection, the right side of the 4th cavity 5 are connected to the left side of the 5th cavity 6, and the diameter of the 5th cavity 6 is greater than the first cavity 2
Diameter, the diameter of the first cavity 2 are greater than the diameter of the second cavity 3, and the diameter of the first sealing ring 8 is greater than the diameter of washer 9, and first
The left side of sealing ring 8 and the right contact of washer 9, washer 9 are located at the inner cavity of the second cavity 3, and the left end of spool 7 is fixedly connected with
Pillar 15, the first sealing ring 8 and washer 9 are set in the surface of pillar 15, and the diameter of spring 10 is greater than the diameter of guide post 11, bullet
The left end of spring 10 is contacted with spool 7, and the right end of spring 10 and the left contact of baffle 12, the quantity of through-hole 14 are three, retaining ring
The fretwork area of 13 inner holes is greater than fretwork area in baffle 12, and the left side of valve body 1 is arranged with the first nut 16, the first nut 16
Inner wall is provided with internal screw thread, and external screw thread compatible with the first nut 16, valve body 1 and first are provided on the left of 1 surface of valve body
Nut 16 is threadedly coupled, and the inner cavity of the first cavity 2 is provided with the first adapter tube 17, and the first nut 16 is run through in the left end of the first adapter tube 17
And the left side of the first nut 16 is extended to, the surface that the first adapter tube 17 is located at 16 inner cavity one end of the first nut is fixedly connected with first
Boss rank 18, the inner wall of the first nut 16 offer first step slot 19 compatible with first boss rank 18, first boss rank
18 sides far from the first adapter tube 17 extend to the inner cavity of first step slot 19, and the first adapter tube 17 is located at 2 inner cavity one of the first cavity
The surface at end offers the first groove 20, and the inner cavity of the first groove 20 is provided with the second sealing ring 21, and the one of the second sealing ring 21
Side is contacted with the inner wall of the first groove 20, in side of second sealing ring 21 far from 20 inner wall of the first groove and the first cavity 2
Wall contact, the right side of valve body 1 are arranged with the second nut 22, and the inner wall of the second nut 22 is provided with internal screw thread, the right side on 1 surface of valve body
Side is provided with external screw thread compatible with the second nut 22, and valve body 1 is threadedly coupled with the second nut 22, the inner cavity of the 5th cavity 6
It is provided with the second adapter tube 23, the right end of the second adapter tube 23 runs through the second nut 22 and extends to the right side of the second nut 22, and second
The surface that adapter tube 23 is located at 22 inner cavity one end of the second nut is fixedly connected with second boss rank 24, and the inner wall of the second nut 22 opens up
There is second step slot 25 compatible with second boss rank 24, second boss rank 24 extends to far from the side of the second adapter tube 23
The inner cavity of two step grooves 25, the surface that the second adapter tube 23 is located at 3 inner cavity one end of the second cavity offer the second groove 26, and second is recessed
The inner cavity of slot 26 is provided with third sealing ring 27, and the side of third sealing ring 27 is contacted with the inner wall of the second groove 26, and third is close
Seal 27 is contacted far from the side of 26 inner wall of the second groove with the inner wall of the 5th cavity 6, by the way that the first sealing ring 8, enhancing is arranged
Support can be fixed to the first sealing ring 8 by the way that washer 9 is arranged in leakproofness between spool 7 and the second cavity 3, logical
The first nut 16 of setting is crossed, convenient for the first adapter tube 17 of connection, by the way that the second nut 22 is arranged, convenient for the second adapter tube 23 of connection, is led to
The first groove 20 of setting and the second sealing ring 21 are crossed, the leakproofness between 2 inner wall of the first adapter tube 17 and the first cavity is enhanced, is led to
The second groove 26 of setting and third sealing ring 27 are crossed, the leakproofness between the 5th cavity 6 and the second adapter tube 23 is enhanced, passes through valve
Body 1, spool 7, the first sealing ring 8, washer 9, spring 10, guide post 11, baffle 12, retaining ring 13, through-hole 14, the first nut 16,
The cooperation of one adapter tube 17, the second nut 22 and the second adapter tube 23 eliminates the welding of previous valve body 1 and connecting tube, using one
Change the built-in retaining ring 13 of valve body 1 structure, when avoiding welding in check valve part overheat and damage risk, reduce welding and
Corresponding cleaning process, more environmentally-friendly, check valve reliable in quality avoids welding, keeps bent tube technique simpler, and quality is more
Reliably, production is more convenient, is not limited, is reduced costs by the space of process equipment, solves the automobile-used sky of current electric car
Most of check valve is using welded structure in adjusting system, i.e. left valve barrel and adapter tube is welded using flame, right valve barrel and adapter tube
It is welded using flame, then the problem of whole argonaut welding connects check valve, processes very complicated, and fraction defective greatly increases.
In use, refrigerant enters from the left end of the first adapter tube 17, refrigerant successively passes through the first cavity 2 and the second cavity
3, refrigerant pushes the left end of spool 7, and spool 7 is made to move right, and spool 7 squeezes spring 10, and the left end of guide post 11 is made to put in valve
The inner cavity of core 7, after spool 7 moves right, refrigerant enters third cavity 4, passes through through-hole 14 and retaining ring 13, refrigerant passes through again
The 4th cavity 5, the 5th cavity 6 and the second adapter tube 23 are crossed, is finally discharged from the right end of the second adapter tube 23.
Claims (10)
1. a kind of nut check valve, including valve body (1), it is characterised in that: the inner cavity of the valve body (1) successively opens up from left to right
There are the first cavity (2), the second cavity (3), third cavity (4), the 4th cavity (5) and the 5th cavity (6), the third cavity
(4) inner cavity is provided with spool (7), and the left end of the spool (7) extends to the inner cavity of the second cavity (3), the spool (7)
Surface is arranged with the first sealing ring (8), is provided with washer (9) on the left of first sealing ring (8), and the washer (9) is arranged
On the surface of spool (7), the surface of the spool (7) and be located at the first sealing ring (8) on the right side of be arranged with spring (10), it is described
The inner cavity of spool (7) is provided with guide post (11), and the inner cavity of the 4th cavity (5) is extended on the right side of the guide post (11), described to lead
One end that column (11) is located at the 4th cavity (5) inner cavity is arranged with baffle (12), and the inner cavity of the 4th cavity (5) is provided with retaining ring
(13), the retaining ring (13) is located at the right side of baffle (12), the left side of the retaining ring (13) and the right contact of baffle (12), institute
The surface for stating baffle (12) offers through-hole (14).
2. a kind of nut check valve according to claim 1, it is characterised in that: the right side of first cavity (2) and the
The left side of two cavitys (3) is connected to, and the right side of second cavity (3) is connected to the left side of third cavity (4), the third cavity
(4) right side is connected to the left side of the 4th cavity (5), is connected on the left of the right side of the 4th cavity (5) and the 5th cavity (6)
Logical, the diameter of the 5th cavity (6) is greater than the diameter of the first cavity (2), and it is empty that the diameter of first cavity (2) is greater than second
The diameter of chamber (3).
3. a kind of nut check valve according to claim 1, it is characterised in that: the diameter of first sealing ring (8) is big
Diameter in washer (9), the right contact in the left side of first sealing ring (8) and washer (9), the washer (9) are located at the
The left end of the inner cavity of two cavitys (3), the spool (7) is fixedly connected with pillar (15), first sealing ring (8) and washer
(9) it is set in the surface of pillar (15).
4. a kind of nut check valve according to claim 1, it is characterised in that: the diameter of the spring (10) is greater than guide post
(11) left end of diameter, the spring (10) is contacted with spool (7), the right end of the spring (10) and the left side of baffle (12)
Contact, the quantity of the through-hole (14) are three, and the fretwork area of retaining ring (13) inner hole is greater than hollow out face in baffle (12)
Product.
5. a kind of nut check valve according to claim 1, it is characterised in that: be arranged on the left of the valve body (1)
One nut (16), the inner wall of first nut (16) are provided with internal screw thread, are provided on the left of valve body (1) surface and the
The compatible external screw thread of one nut (16), the valve body (1) are threadedly coupled with the first nut (16), first cavity (2)
Inner cavity is provided with the first adapter tube (17), and the left end of first adapter tube (17) through the first nut (16) and extends to the first nut
(16) left side.
6. a kind of nut check valve according to claim 5, it is characterised in that: first adapter tube (17) is located at the first spiral shell
The surface of female (16) inner cavity one end is fixedly connected with first boss rank (18), and the inner wall of first nut (16) offers and the
The compatible first step slot (19) of one boss rank (18), the first boss rank (18) are prolonged far from the side of the first adapter tube (17)
Extend to the inner cavity of first step slot (19).
7. a kind of nut check valve according to claim 5, it is characterised in that: it is empty that first adapter tube (17) is located at first
The surface of chamber (2) inner cavity one end offers the first groove (20), and the inner cavity of first groove (20) is provided with the second sealing ring
(21), the side of second sealing ring (21) is contacted with the inner wall of the first groove (20), and second sealing ring (21) is separate
The side of the first groove (20) inner wall is contacted with the inner wall of the first cavity (2).
8. a kind of nut check valve according to claim 1, it is characterised in that: be arranged on the right side of the valve body (1)
Two nuts (22), the inner wall of second nut (22) are provided with internal screw thread, are provided on the right side of valve body (1) surface and the
The compatible external screw thread of two nuts (22), the valve body (1) are threadedly coupled with the second nut (22), the 5th cavity (6)
Inner cavity is provided with the second adapter tube (23), and the right end of second adapter tube (23) through the second nut (22) and extends to the second nut
(22) right side.
9. a kind of nut check valve according to claim 8, it is characterised in that: second adapter tube (23) is located at the second spiral shell
The surface of female (22) inner cavity one end is fixedly connected with second boss rank (24), and the inner wall of second nut (22) offers and the
The compatible second step slot (25) of two boss ranks (24), the second boss rank (24) are prolonged far from the side of the second adapter tube (23)
Extend to the inner cavity of second step slot (25).
10. a kind of nut check valve according to claim 8, it is characterised in that: second adapter tube (23) is located at second
The surface of cavity (3) inner cavity one end offers the second groove (26), and the inner cavity of second groove (26) is provided with third sealing
It encloses (27), the side of the third sealing ring (27) is contacted with the inner wall of the second groove (26), and the third sealing ring (27) is remote
Side from the second groove (26) inner wall is contacted with the inner wall of the 5th cavity (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187911.4A CN109084057A (en) | 2018-10-12 | 2018-10-12 | A kind of nut check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187911.4A CN109084057A (en) | 2018-10-12 | 2018-10-12 | A kind of nut check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109084057A true CN109084057A (en) | 2018-12-25 |
Family
ID=64843584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811187911.4A Withdrawn CN109084057A (en) | 2018-10-12 | 2018-10-12 | A kind of nut check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109084057A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431949A (en) * | 2020-12-12 | 2021-03-02 | 威海鸣川汽车技术有限公司 | H-shaped one-way valve |
| CN114009482A (en) * | 2021-10-25 | 2022-02-08 | 湖南省嘉品嘉味生物科技有限公司 | Belt cleaning device is used in meat products processing |
| EP4575296A1 (en) * | 2023-12-20 | 2025-06-25 | Stiebel Eltron GmbH & Co. KG | Hydraulic connection for a heat pump |
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| CN207584094U (en) * | 2017-12-14 | 2018-07-06 | 浙江易达汽车零部件有限公司 | A kind of check valve |
| CN208519232U (en) * | 2018-06-19 | 2019-02-19 | 浙江易达汽车零部件有限公司 | A kind of check valve |
| CN208967130U (en) * | 2018-10-12 | 2019-06-11 | 浙江易达汽车零部件有限公司 | A kind of nut check valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431949A (en) * | 2020-12-12 | 2021-03-02 | 威海鸣川汽车技术有限公司 | H-shaped one-way valve |
| CN114009482A (en) * | 2021-10-25 | 2022-02-08 | 湖南省嘉品嘉味生物科技有限公司 | Belt cleaning device is used in meat products processing |
| EP4575296A1 (en) * | 2023-12-20 | 2025-06-25 | Stiebel Eltron GmbH & Co. KG | Hydraulic connection for a heat pump |
| DE102023136087A1 (en) * | 2023-12-20 | 2025-06-26 | Stiebel Eltron Gmbh & Co. Kg | Hydraulic connection for a heat pump |
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Application publication date: 20181225 |