CN108591449A - A kind of leather cup and the check valve equipped with the leather cup - Google Patents
A kind of leather cup and the check valve equipped with the leather cup Download PDFInfo
- Publication number
- CN108591449A CN108591449A CN201810607233.6A CN201810607233A CN108591449A CN 108591449 A CN108591449 A CN 108591449A CN 201810607233 A CN201810607233 A CN 201810607233A CN 108591449 A CN108591449 A CN 108591449A
- Authority
- CN
- China
- Prior art keywords
- leather cup
- valve body
- shirt rim
- convex ribs
- check valve
- 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.)
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- 239000010985 leather Substances 0.000 title claims abstract description 77
- 230000007704 transition Effects 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 210000002435 tendon Anatomy 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
-
- 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
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
-
- 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
- F16K27/0236—Diaphragm cut-off apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of leather cup, the outer rim of middle part boss is linked together by the front end of transition part and shirt rim, and annular groove is formed between the front end and transition part of middle part boss, and the slot bottom of the annular groove is sealing surface；It is formed with annular ridge on the excircle of shirt rim rear end, the outer circumference surface of the annular ridge is the first card plane, and the rear end face of shirt rim is the second card plane.The invention also discloses a kind of check valves, including the first valve body and the second valve body that can be mutually socketed, leather cup is located in the inner cavity of the first valve body, sealing surface on leather cup is close to the rear end face of annular convex platform, axial convex ribs block the first card plane on leather cup on first valve body, the second card plane of the radial convex ribs compressing leather cup on the second valve body.The included sealing of leather cup of the present invention and elastic reset function, it is simple in structure, it is easy to make, production cost is low, and assembly is convenient, and efficiency of assembling is high, and good reliability, service life are long.
Description
Technical field
The invention belongs to valve technology fields, specifically, more particularly to a kind of leather cup and the check valve equipped with the leather cup.
Background technology
Check valve is also known as check-valves or non-return valve, is suitable for controlling the conveying of liquid, gas, and fluid can only be along check valve
Input adapter flow into, then flowed out from out splice going splice, the medium of conveying is impermissible for flowing back.What is connect with check valve input adapter
External equipment is connected on pipeline, the liquid or gas of check valve conveying are controlled by the external equipment.For controlling water
The check valve of stream, pressure of supply water is in 0.6Mpa hereinafter, from the flow that out splice going splice flows out, into the outer tank of connection, water
For the water level of case within 1 meter, hydraulic pressure is smaller.
Common check valve is made of two different valve bodies on the market, and respectively there are one pagoda connectors for each valve body, lead to
Crossing sebific duct can just be such that check valve is connected with external pipe；The rest part of valve body is a cylinder, and two cylinders can
It is set in together.The inside of valve body cylinder will generally assemble two accessories:One (is had plenty of as the rubbery flat gasket of sealing element
Sealed using O-shaped ring), in closed check valve, the front of the plain cushion will seal valve inner and come liquid (or gas) direction
Port；In the reverse side of the plain cushion, a spring is set, after spring is coupled, glue plain cushion can be made reliably to seal, it is ensured that do not fall
It fills.
The purpose that spring is configured on check valve is that it is possible to that check valve is made reliably to seal, and spring can not be really up to the mark, otherwise can
Influence flow；Can not be excessively soft, it otherwise can seal bad.Common one-way valve spring in the market is with diameter 0.2mm or so
Steel wire wound form.Since the type spring is too small, negative effect is：1. increasing difficulty to spring is made；2. worker
Larger trouble can be encountered when correct group shock mount, efficiency of assembling can be thus substantially reduced, increase cost of manufacture；3. on the market
The spring of many check valves can enter the import end shield of out splice going splice, at this point, fluid is (micro- between adjacent every circle by spring
It is small) gap enter out splice going splice, it is possible to result in blockage, to influence the performance of check valve, or even shorten making for check valve
Use the service life.
Invention content
In view of the drawbacks described above of the prior art, one of the objects of the present invention is to provide a kind of leather cups.
Technical solution to achieve the above object is as follows：A kind of leather cup, including middle part boss and shirt rim, it is characterized in that：Institute
The outer rim for stating middle part boss is linked together by the front end of transition part and shirt rim, the shape between the front end and transition part of middle part boss
At there is annular groove, the slot bottom of the annular groove is sealing surface；The shirt rim is pre-small post-large taper, one on the excircle of shirt rim rear end
Body is formed with annular ridge, and the outer circumference surface of the annular ridge is the first card plane, and the rear end face of the shirt rim is the second screens
Face.
Leather cup is a kind of rubber seal being commonly used in ball-cock assembly product, usually by middle part boss and shirt rim two
It is grouped as, sealing function is played the role of in the keying of its middle part boss control valve, and there are two one is constraint skin for its shirt rim
Bowl central boss position, makes it be moved along correct track, the second is, partition is played to the liquid on two surface of shirt rim, thus
It is found that if leather cup is damaged, ball-cock assembly will fail.
The present invention improves aforementioned leather cup structure by ingenious, makes to connect by transition part between the middle part boss of leather cup and shirt rim
It is integrated, and the slot bottom of the annular groove between middle part boss and transition part is as sealing surface, shirt rim at this time not only has constraint work(
Can, the movement of central boss can be made without departing from correct track, also there is spring function, acted on using the elastic force of rubber parts, energy
Enough sealing surface is made to be adjacent to control hole, prevents from pouring in down a chimney phenomenon.Shirt rim at this time, it is no longer necessary to cutting function above-mentioned, even if
It, also being capable of normal use when shirt rim occurs a little damaged.
The counter structure on the first card plane cooperation valve body on the shirt rim of leather cup of the present invention plays circumferentially positioned, shirt rim
On the second card plane cooperation valve body on counter structure play axially position, the bullet of recycling shirt rim and transition part itself
Power can constrain leather cup position, and the middle part boss of leather cup is enable to move in the straight direction, it is ensured that the normal work of check valve
Make.The sealing function of glue plain cushion in traditional check valve and the reset function of spring are integrated in one by the leather cup in the present invention, a side
Face processing and fabricating is easy, and production cost is lower, on the other hand, is enormously simplified assembly manipulation, is effectively increased packaging efficiency, and
And the risk not blocked, better reliability, the service life is longer.By adjusting shirt rim, the thickness of transition part and shape, so that it may
To adjust its coefficient of elasticity, it is adapted to different check valves, use scope is very extensive.
Preferably, the middle part boss is pre-small post-large step-like.
Preferably, the transition part is arc top annular groove shape facing forward, and the arc top of transition part and the middle part boss
Front end face is not concordant.
Preferably, the thickness of the shirt rim thinnest part is 0.3-0.4mm.
The second object of the present invention is to provide a kind of check valve.
Technical solution to achieve the above object is as follows：A kind of check valve, including the first valve body that can be mutually socketed and
Two valve bodies are formed with input adapter on the first valve body, and the inside of the input adapter is connected to the inner cavity of the first valve body, institute
It states and is formed with out splice going splice on the second valve body, the inside of out splice going splice is connected to the inner cavity of the second valve body, it is characterized in that：Institute
The inner wall for stating input adapter integrally extends backward, and annular convex platform is formed in the inner cavity of the first valve body, and the leather cup is located at first
In the inner cavity of valve body, the front end of the middle part boss of the leather cup is stretched into annular convex platform, the sealing surface and annular convex platform on leather cup
Rear end face is close to, and multiple axial convex ribs being distributed by even circumferential, the axis are formed in the inner cavity of first valve body
The first card plane on leather cup is blocked to convex ribs, is formed in the inner cavity of second valve body multiple by even circumferential point
The radial convex ribs of cloth, the radial direction convex ribs are aligned with axial convex ribs, do not misplace one by one, and the second card on radial convex ribs compressing leather cup
Plane.
The check valve of adaptation leather cup of the present invention improves on two valve bodies, the part area of the second card plane of leather cup
Domain is so that its contact position is had a little deformation in design on the multiple radial convex ribs being pressed in the second body cavity, thus produce
Raw appropriate elastic force can drive the annular convex platform rear port that the sealing surface of leather cup is close to the first valve body, avoid pouring in down a chimney；Leather cup
Two card planes, constrained respectively by the radial convex ribs of the axial convex ribs of the first valve body and the second valve body, benefit is：Skin
The middle part boss of bowl can efficiently accomplish the keying task of check valve always in correct position.
Preferably, the middle part of the axial direction convex ribs is equipped with the step for constraining the annular ridge.
Preferably, it is formed with positioning convex tendon on the outer wall of first valve body, positioning convex tendon insertion second
In the positioning groove being correspondingly arranged on valve interior wall.
Preferably, boss in the middle part of the leather cup is pre-small post-large step-like.
Preferably, the transition part is arc top annular groove shape facing forward, and the arc top of transition part and the middle part boss
Front end face is not concordant.
Preferably, the thickness of the shirt rim thinnest part is 0.3-0.4mm.
The beneficial effects of the invention are as follows：
1) the included sealing of leather cup and elastic reset function, the glue plain cushion and spring that can be substituted in traditional structure are used for unidirectionally
The keying of valve, it is simple in structure, it is easy to make, production cost is low.
2) shirt rim on leather cup does not require sealing function, even if there is small breakage in shirt rim, will not influence sealing effect
Fruit, service life are long.
3) the radial convex ribs cooperation on the axial convex ribs and the second valve body on leather cup and the first valve body, can constrain leather cup
Position enables leather cup central boss to move in the straight direction, it is ensured that the reliability of check valve.
4) spring tiny in traditional structure is eliminated, and equipped with guiding, location structure on two valve bodies, filled in this way
More simply, conveniently with operation, efficiency of assembling is effectively increased.
5) by adjusting leather cup shirt rim, the thickness of transition part and shape, so that it may to adjust its coefficient of elasticity, be adapted to different
Check valve, use scope are very extensive.
Description of the drawings
Fig. 1 is the structural schematic diagram of leather cup.
Fig. 2 is the structural schematic diagram of check valve.
Fig. 3 is the A-A sectional views of Fig. 2.
Fig. 4 is the structural schematic diagram of the first valve body.
Fig. 5 is the right view of Fig. 4.
Fig. 6 is the structural schematic diagram of the second valve body.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the B-B sectional views of Fig. 6.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples：
As shown in Figure 1, a kind of leather cup, has middle part boss 1, shirt rim 2 and transition part 3.After middle part boss 1 is small before being preferably
Big two-part is step-like, and all sides of 1 leading portion of middle part boss are pre-small post-large circular conical surface.Shirt rim 2 is located at middle part boss 1
Periphery, the axial line of shirt rim 2 and the axial line of middle part boss 1 are located on straight line.The front end of shirt rim 2 passes through transition part 3
It is linked together with the outer rim of middle part boss 1, junction is preferably placed at all sides at 1 middle part of middle part boss.Transition part 3 is arc top court
Preceding annular groove shape, and the arc top of transition part 3 and the front end face of middle part boss 1 be not concordant, the front end face of middle part boss 1 is more than transition
The arc top in portion 3.Annular groove 4 is formed between the front end of middle part boss 1 and transition part 3, the slot bottom of the annular groove 4 is sealing surface C, close
Cover C is cricoid plane.
As shown in Figure 1, shirt rim 2 is pre-small post-large taper, taper determines according to actual needs.Shirt rim 2 may be used
Thickness structure, can also thickness increase step by step from front to back, the thickness of 2 thinnest part of shirt rim is 0.3-0.4mm.In 2 rear end of shirt rim
Excircle on be formed with annular ridge 21, the outer circumference surface of the annular ridge 21 is the first card plane A, annular ridge 21
Rear end face it is concordant with the rear end face of shirt rim 2, the rear end face of shirt rim 2 is the second card plane B.
As shown in Fig. 2 to Fig. 8, a kind of check valve equipped with above-mentioned leather cup, by the first valve body 5, the second valve being mutually socketed
Body 6 and leather cup composition.It is formed with positioning convex tendon 54 on the outer wall of the first valve body 5, the positioning convex tendon 54 insertion second
In the positioning groove 63 being correspondingly arranged on 6 inner wall of valve body.Positioning convex tendon 54 and positioning groove 63 match, rise be oriented to and positioning
Effect makes the first valve body 5 and the second valve body 6 be easy to align in assembly, and assembly manipulation is simpler, quick.On the first valve body 5
It is formed with input adapter 51, the inside of the input adapter 51 is connected to the inner cavity of the first valve body 5, one on the second valve body 6
It is formed with out splice going splice 61, the inside of out splice going splice 61 is connected to the inner cavity of the second valve body 6, out splice going splice 61 and input adapter 51
It is preferably placed on straight line.
As shown in Figures 1 to 8, the inner wall of input adapter 51 integrally extends backward, and ring is formed in the inner cavity of the first valve body 5
Shape boss 52.Leather cup is located in the inner cavity of the first valve body 5, and the front end of the middle part boss 1 of the leather cup is stretched into annular convex platform 52, skin
Sealing surface C on bowl is close to the rear end face of annular convex platform 52, the inner cavity of shirt rim 2 and transition part 3 and the first valve body 5 on leather cup
There is gap between wall.Multiple axial convex ribs 53 being distributed by even circumferential, axis are formed in the inner cavity of the first valve body 5
Extend from front to back to convex ribs 53, the number of axial convex ribs 53 determines according to actual needs, and the present embodiment is preferably six.Each axis
The first card plane A on leather cup is blocked to convex ribs 53, the middle part of axial convex ribs 53 is equipped with for constraining leather cup annular ridge 21
Step D, do not contacted with the annular ridge 21 on leather cup when step D is flat, pour in down a chimney moment flow it is larger when, the step is to ring
Shape fin 21 limits, and prevents its displacement from causing leather cup that cannot reset.It is formed in the inner cavity of the second valve body 6 multiple by circle
Week equally distributed radial convex ribs 62, which corresponds with axial convex ribs 53, i.e., each radial direction convex ribs 62 with it is right
The axial convex ribs 53 answered are narrowly focused towards, do not misplace, and radial convex ribs 62 oppress the second card plane B on leather cup.
Check valve step when assembled is：1) allow the front end of boss in the middle part of leather cup towards the annular in 5 inner cavity of the first valve body
Leather cup is placed in the inner cavity of the first valve body 1 by boss 52, at this point, the axial convex ribs 53 of six on the first valve body 5 are just by leather cup
On the first card plane A block；2) positioning groove 63 of the second valve body 6 is aligned to the positioning convex tendon 54 of the first valve body 5, reinforcing pressure
Under, so that two valve bodies is blocked；3) ultrasonic bonding mode is used, two valve body weldings are fixed.
In the present invention：Second card plane B of leather cup is pressed on six radial convex ribs 62 of the second valve body 6, is being set
Its contact position is set to have a little deformation, resulting appropriateness elastic force that the sealing surface C of leather cup can be driven to be close to the first valve body 5 on meter
52 port of annular convex platform, avoids pouring in down a chimney；Two card planes A and B of leather cup, respectively by six axial directions of the first valve body 5
The constraint of six radial convex ribs 62 of convex ribs 53 and the second valve body 6, benefit is that the middle part boss 2 of leather cup is always in correct position
It sets, the keying task of check valve can be efficiently accomplished.
Present invention eliminates the springs that traditional structure makes of steel wire, devise a kind of novel leather cup, and leather cup not only has
Standby sealing function, also has the function of spring, can ideally replace original wire spring.The middle part boss structure of leather cup,
It is analogous to the glue plain cushion of check valve on the market, the effect of middle part boss peripheral skirt is：1) after coordinating with valve body relevant portion, energy
Enough constraint leather cup positions enable boss in the middle part of leather cup to move in the straight direction, it is ensured that the normal work of check valve；2) it adjusts
The thickness of shirt rim and the shape of relevant range, so that it may to adjust its coefficient of elasticity, be adapted to different check valves.
By taking check valve conveys water as an example, its work is such：When conveying water to check valve, there is the water of certain pressure
Stream washes boss 1 in the middle part of leather cup open by input adapter 51, and away from annular convex platform 52, flow enters the valve of check valve therewith
Chamber is finally flowed out from the out splice going splice of check valve 61 by the gap between leather cup shirt rim and valve chamber inner wall；When stopping is to unidirectional
When valve supply water, under the action of leather cup elastic force, boss 1 has sealed 52 port of annular convex platform of the first valve body 5 again in the middle part of leather cup, no
It will appear flow backwards phenomenon.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
Need creative work according to the present invention can conceive number and the position made many modifications and variations, for example change convex ribs
It sets or the shape etc. of leather cup shirt rim.Therefore, all technician in the art are under this invention's idea in the prior art
On the basis of by the available technical solution of logical analysis, reasoning, or a limited experiment, all should be by claims
In identified protection domain.
Claims (10)
1. a kind of leather cup, including middle part boss (1) and shirt rim (2), it is characterized in that：The outer rim of the middle part boss (1) passed through
It crosses portion (3) and the front end of shirt rim (2) to be linked together, annular groove is formed between the front end of middle part boss (1) and transition part (3)
(4), the slot bottom of the annular groove (4) is sealing surface (C)；The shirt rim (2) is pre-small post-large taper, in the outer of shirt rim (2) rear end
Annular ridge (21) is formed on circumference, the outer circumference surface of the annular ridge (21) is the first card plane (A), the shirt rim
(2) rear end face is the second card plane (B).
2. leather cup as described in claim 1, it is characterized in that：The middle part boss (1) is pre-small post-large step-like.
3. leather cup as claimed in claim 1 or 2, it is characterized in that：The transition part (3) is arc top annular groove shape facing forward, and mistake
Arc top and the front end face of the middle part boss (1) for crossing portion (3) be not concordant.
4. leather cup as claimed in claim 3, it is characterized in that：The thickness of shirt rim (2) thinnest part is 0.3-0.4mm.
5. a kind of check valve equipped with leather cup as described in claim 1, including the first valve body (5) that can be mutually socketed and the second valve
Body (6) is formed with input adapter (51) on the first valve body (5), inside and the first valve body (5) of the input adapter (51)
Inner cavity connection, out splice going splice (61), inside and the second valve of out splice going splice (61) are formed on second valve body (6)
The inner cavity of body (6) is connected to, it is characterized in that：The inner wall of the input adapter (51) integrally extends backward, in the interior of the first valve body (5)
Annular convex platform (52) is formed in chamber, the leather cup is located in the inner cavity of the first valve body (5), before the middle part boss (1) of the leather cup
End is stretched into annular convex platform (52), and the sealing surface (C) on leather cup is close to the rear end face of annular convex platform (52), in first valve
It is formed with multiple axial convex ribs (53) being distributed by even circumferential in the inner cavity of body (5), the axial direction convex ribs (53) are by leather cup
On the first card plane (A) block, be formed with multiple diameters being distributed by even circumferential in the inner cavity of second valve body (6)
To convex ribs (62), which is aligned with axial convex ribs (53), does not misplace one by one, and radial convex ribs (62) oppress leather cup
On the second card plane (B).
6. check valve as claimed in claim 5, it is characterized in that：The middle part of the axial direction convex ribs (53) is equipped with described for constraining
The step (D) of annular ridge (21).
7. check valve as claimed in claim 5, it is characterized in that：It is fixed to be formed on the outer wall of first valve body (5)
Position convex ribs (54), the positioning convex tendon (54) are embedded in the positioning groove (63) being correspondingly arranged on the second valve body (6) inner wall.
8. the check valve as described in claim 5 or 6 or 7, it is characterized in that：The middle part boss (1) is pre-small post-large step
Shape.
9. check valve as claimed in claim 8, it is characterized in that：The transition part (3) is arc top annular groove shape facing forward, and transition
The arc top in portion (3) and the front end face of the middle part boss (1) be not concordant.
10. check valve as claimed in claim 9, it is characterized in that：The thickness of shirt rim (2) thinnest part is 0.3-0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607233.6A CN108591449A (en) | 2018-06-13 | 2018-06-13 | A kind of leather cup and the check valve equipped with the leather cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607233.6A CN108591449A (en) | 2018-06-13 | 2018-06-13 | A kind of leather cup and the check valve equipped with the leather cup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108591449A true CN108591449A (en) | 2018-09-28 |
Family
ID=63628257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810607233.6A Withdrawn CN108591449A (en) | 2018-06-13 | 2018-06-13 | A kind of leather cup and the check valve equipped with the leather cup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591449A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137308A (en) * | 1994-10-24 | 1996-12-04 | 雷塞尔国际合股有限公司 | Liner mode sheath valve |
| US6390120B1 (en) * | 1999-11-12 | 2002-05-21 | Industrie Borla S.P.A. | Check valve for medical infusion lines and the like |
| US20060108554A1 (en) * | 2004-10-01 | 2006-05-25 | Enerson Jon R | Dome check valve |
| CN201031949Y (en) * | 2007-05-22 | 2008-03-05 | 欧健 | Diaphragm for water-off self-closing valve |
| CN102913649A (en) * | 2012-10-31 | 2013-02-06 | 浙江爱力浦泵业有限公司 | Safety backpressure check valve |
| CN104114922A (en) * | 2012-02-09 | 2014-10-22 | Mgi库贴公司 | Diaphragm check valve |
| CN107429853A (en) * | 2015-03-25 | 2017-12-01 | 株式会社泰克米纳 | Check-valves and valve element |
| CN208364774U (en) * | 2018-06-13 | 2019-01-11 | 卢欣渝 | Leather cup and check valve equipped with the leather cup |
-
2018
- 2018-06-13 CN CN201810607233.6A patent/CN108591449A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137308A (en) * | 1994-10-24 | 1996-12-04 | 雷塞尔国际合股有限公司 | Liner mode sheath valve |
| US6390120B1 (en) * | 1999-11-12 | 2002-05-21 | Industrie Borla S.P.A. | Check valve for medical infusion lines and the like |
| US20060108554A1 (en) * | 2004-10-01 | 2006-05-25 | Enerson Jon R | Dome check valve |
| CN201031949Y (en) * | 2007-05-22 | 2008-03-05 | 欧健 | Diaphragm for water-off self-closing valve |
| CN104114922A (en) * | 2012-02-09 | 2014-10-22 | Mgi库贴公司 | Diaphragm check valve |
| CN102913649A (en) * | 2012-10-31 | 2013-02-06 | 浙江爱力浦泵业有限公司 | Safety backpressure check valve |
| CN107429853A (en) * | 2015-03-25 | 2017-12-01 | 株式会社泰克米纳 | Check-valves and valve element |
| CN208364774U (en) * | 2018-06-13 | 2019-01-11 | 卢欣渝 | Leather cup and check valve equipped with the leather cup |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180928 |
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| WW01 | Invention patent application withdrawn after publication |