CN104154246A - Leak-proof stop valve - Google Patents
Leak-proof stop valve Download PDFInfo
- Publication number
- CN104154246A CN104154246A CN201410367761.0A CN201410367761A CN104154246A CN 104154246 A CN104154246 A CN 104154246A CN 201410367761 A CN201410367761 A CN 201410367761A CN 104154246 A CN104154246 A CN 104154246A
- Authority
- CN
- China
- Prior art keywords
- valve
- inlet tube
- outer pipe
- leakage stopping
- seal ring
- 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.)
- Pending
Links
Classifications
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- 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
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- 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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
Abstract
The invention provides a leak-proof stop valve. The leak-proof stop valve comprises a valve body and a valve stem disposed inside the valve body. One end of the valve stem extends out of the valve body; the part, close to the end of the valve stem, of the valve stem is sleeved with a sealing unit; the sealing unit comprises a spiral seal ring, a ring gasket and an adjusting spacer which are adjacent to one another; the ring gasket is located between the spiral seal ring and the adjusting spacer; the spiral seal ring is closed to one end of the valve stem; the ring gasket is made of polytetrafluoroethylene; the adjusting spacer is made of bronze. The leak-proof stop valve has the advantages that leakage of high-pressure gas and liquid can be effectively prevented, the leak-proof stop valve is applicable to coolants that various refrigerators use, and the leak-proof stop valve has good tightness under pressure and features ageing resistance, long service life, cost saving and the like.
Description
Technical field
The present invention relates to pipe-line control valve technical field, relate to particularly a kind of non-leakage stopping valve.
Background technique
At present, stop valve is mainly used in large-scale chiller plant, is the main kit of refrigerator.China nearly ten years, stop valve valve rod cylindrical leaks and the leakage of valve seat inner circle is the large technical barrier always perplexing in refrigerator industry, directly have influence on reliability and the stability of refrigerator product, make product all be subject to great impact in competitive ability and the produce market sale in market, bring very large difficulty in the use with in maintenance particularly to the user who buys refrigerator.Particularly, because the stop valve being arranged on refrigerator leaks, the economic loss directly and indirectly causing is very large.Because stop valve is the work of controlling the refrigeration agent fluorine of refrigerator, therefore, once stop valve leaks, fluorine, just at air evaporation, not only causes economic loss, and directly has influence on the normal work of refrigerator.
Due to the leakage of stop valve, affect the reliability and stability of refrigerator product, the producer that produces chiller plant is had a headache very much, the stop valve of China's manufacturer production of producing stop valve in all parts of the country all can not meet at present, and up-to-standard rate is extremely low.
Be applicable to the safe and reliable valve of refrigerator in the case of not finding, whole nation R&D institution, has particularly recommended a kind of valve that is named as corrugated valve to replace stop valve to the unit of valve research, although corrugated valve up-to-standard rate is higher than stop valve, but corrugated valve price comparison is high, poor reliability simultaneously.And the sealing medium of corrugated valve is only suitable for one to two kind of refrigeration agent, and applicability is narrow, and 123 fluorine, 121 fluorine, 122 fluorine, 134 fluorine that refrigerator is selected can not be general, gives and produce and apply and also brought difficulty.
Therefore,, in order to solve the technical barrier of refrigrant leakage in refrigerator, the present invention proposes a kind of new solution.
Summary of the invention
In order to solve the technical barrier in refrigerator production, the invention provides a kind of non-leakage stopping valve.Non-leakage stopping valve provided by the invention can effectively prevent the leakage of pressurized gas and liquid, can be applicable to the refrigeration agent that all refrigerators adopt, the in the situation that of pressurized, there is good sealing, there is ageing-resistant, long service life simultaneously, economize on the use of funds.
According to non-leakage stopping valve provided by the invention, it comprises valve body and valve rod is in the inner set, described valve body is stretched out in one end of described valve rod, on the position of a described end of the close described valve rod of described valve rod, overcoat has black box, described black box comprises tight close neighbour's spiral seal ring, seal ring and adjustment pad, described seal ring is between described spiral seal ring and described adjustment pad, and described spiral seal ring is near a described end of described valve rod.
Preferably, described seal ring is polytetrafluoroethylmaterial material, and described adjustment pad is bronze material.
Preferably, a described end of described valve rod is provided with assembling set, and described assembling set and described valve rod are integrated, and described assembling set can pass described black box.
Further, the other end relative with having a described end of described valve rod is provided with cone sealing head, and described cone sealing head and described valve rod are integrated, and the bottom end face of described cone sealing head is formed with valve stem seal face.
Further, described valve body comprises the valve seat pipe, inlet tube and the outer pipe that interconnect, described inlet tube is between described valve seat pipe and described outer pipe, the free-ended cylindrical of described valve seat pipe, described inlet tube and described outer pipe is equipped with screw thread, and the inner circle at the middle part of described valve seat pipe has with the valve stem seal face of described valve rod and coordinates the valve body sealing surface that forms sealing surface.
Alternatively, the pipeline rout of described inlet tube and the pipeline rout of described outer pipe are perpendicular, and described outer pipe is positioned at the side of described valve body.
Alternatively, the pipeline rout of described inlet tube is parallel with the pipeline rout of described outer pipe, and described inlet tube and described outer pipe lay respectively at the radially relative both sides of described valve body.
Alternatively, described valve seat pipe and described valve body are integral type or split type.
Further, described non-leakage stopping valve also comprises dust-proof cover, sealed connection nut and dust cap, described dust-proof cover is fixedly connected with described valve seat pipe by the screw thread of the cylindrical of described valve seat pipe, described sealed connection nut be provided with two and respectively the screw thread of the cylindrical by described inlet tube and described outer pipe be fixedly connected with described outer pipe with described inlet tube, described dust cap be provided with two and lay respectively at described sealed connection nut and described inlet tube and described outer pipe between.
Preferably, described sealed connection nut is bell metal material, and it comprises 30% tin and 70% copper.
According to non-leakage stopping valve provided by the invention, can bring one of at least following beneficial effect:
(1) effectively prevent the leakage of pressurized gas and liquid.Non-leakage stopping valve provided by the invention, on its valve rod, overcoat has black box, sealing assembly comprises tight close neighbour's spiral seal ring, seal ring and adjustment pad, sealing assembly can effectively prevent the leakage of pressurized gas and liquid, and stop valve is brought up to more than 98% by 30% original left and right without leaking up-to-standard rate;
(2) applicability is wide, can be applicable to the refrigeration agent that various refrigerators adopt.Non-leakage stopping valve provided by the invention, on its valve rod, overcoat has black box, sealing assembly comprises tight close neighbour's spiral seal ring, seal ring and adjustment pad, wherein seal ring is polytetrafluoroethylmaterial material, teflon is a kind of engineering plastics, this material can be applicable to the refrigeration agent that various refrigerators adopt, and 123 fluorine, 121 fluorine, 122 fluorine and 134 fluorine that refrigerator is selected can be general, and applicability is wide;
(3) long service life, economizes on the use of funds.Non-leakage stopping valve provided by the invention, on its valve rod, overcoat has black box, sealing assembly comprises tight close neighbour's spiral seal ring, seal ring and adjustment pad, wherein seal ring is polytetrafluoroethylmaterial material, this material has ageing-resistant feature, and the in the situation that of pressurized, there is good sealing, extended the working life of non-leakage stopping valve provided by the invention, saved fund.
Brief description of the drawings
Fig. 1 shows the package assembly schematic diagram of the non-leakage stopping valve that the embodiment of the present invention provides;
Fig. 2 shows the decomposition texture schematic diagram of the non-leakage stopping valve shown in Fig. 1;
Fig. 3 shows the package assembly schematic diagram of the non-leakage stopping valve that further embodiment of this invention provides;
Fig. 4 shows the decomposition texture schematic diagram of the non-leakage stopping valve shown in Fig. 3.
Embodiment
Introduce in detail with reference to the accompanying drawings exemplary embodiment of the present invention.The object that these exemplary embodiments are provided is in order to make those of ordinary skill in the art can be expressly understood the present invention, and can realize the present invention according to the description here.The drawings and specific embodiments are not intended to the present invention to limit, and scope of the present invention is defined by the following claims.
Fig. 1 shows the package assembly schematic diagram of the non-leakage stopping valve that the embodiment of the present invention provides; Fig. 2 shows the decomposition texture schematic diagram of the non-leakage stopping valve shown in Fig. 1; Fig. 3 shows the package assembly schematic diagram of the non-leakage stopping valve that further embodiment of this invention provides; Fig. 4 shows the decomposition texture schematic diagram of the non-leakage stopping valve shown in Fig. 3.Referring to figs. 1 through Fig. 4, non-leakage stopping valve provided by the invention, it comprises valve body 1 and valve rod 2 is in the inner set, above-mentioned valve body 1 is stretched out in one end of this valve rod 2, on the position of an above-mentioned end of the close above-mentioned valve rod 2 of this valve rod 2, overcoat has black box, sealing assembly comprises tight close neighbour's spiral seal ring 3, seal ring 4 and adjusts pad 5, sealing circle 4 is between above-mentioned spiral seal ring 3 and above-mentioned adjustment pad 5, and above-mentioned spiral seal ring 3 is near an above-mentioned end of above-mentioned valve rod 2.
Above-mentioned seal ring 4 is polytetrafluoroethylmaterial material, teflon is a kind of monomer cast nylon, also be the one of engineering plastics, it can meet the need of work of 123 fluorine, 121 fluorine, 122 fluorine and 134 fluorinated refrigerants, 123 fluorine, 121 fluorine, 122 fluorine and 134 fluorine refrigerator selected can be general, and non-leakage stopping valve provided by the invention has the advantages that applicability is wide because of the seal ring 4 that has adopted polytetrafluoroethylmaterial material.In addition, the friction factor of teflon is extremely low, cause it to there is lubrication, simultaneously teflon can antiacid alkali resistant, anti-various organic solvents, there is resistant to elevated temperatures feature, can be ageing-resistant, the feature of non-leakage stopping valve provided by the invention because having adopted the seal ring 4 of polytetrafluoroethylmaterial material to there is long service life, economize on the use of funds.
Above-mentioned adjustment pad 5 is bronze material, and thickness is 0.3mm-1.5mm.Above-mentioned spiral seal ring 3 has sealing and regulates the effect of pressure, this spiral seal ring 3, above-mentioned seal ring 4 and above-mentioned adjustment pad 5 form the black box of a combination, can ensure the normal work of above-mentioned valve rod 2, can make non-leakage stopping valve provided by the invention effectively prevent the leakage of pressurized gas and liquid, stop valve is brought up to more than 98% by 30% original left and right without leaking up-to-standard rate.
In order to ensure the reliability of product performance, detect the detected pressures of the up-to-standard rate of non-leakage stopping valve provided by the invention and bring up to 2.3MPa by 0.6MPa, the in the situation that of pressure 2.3MPa, direction switch limit travel 100 times, without any minute leakage, if by having been looked into a leakage, then add selective examination 10%, leaking depending on stop valve by the gross as occurred is substandard product again.Through above-mentioned detection, the up-to-standard rate of non-leakage stopping valve provided by the invention, more than 98%, illustrates that non-leakage stopping valve provided by the invention can effectively prevent the leakage of pressurized gas and liquid.
Referring to figs. 1 through Fig. 4, an above-mentioned end of above-mentioned valve rod 2 is provided with assembling set, and this assembling set and above-mentioned valve rod 2 are integrated, and this assembling set can pass above-mentioned black box.The other end relative with having an above-mentioned end of above-mentioned valve rod 2 is provided with cone sealing head 22, and this cone sealing head 22 is integrated with above-mentioned valve rod 2, and the bottom end face of this cone sealing head 22 is formed with valve stem seal face 221.
Before operation stop valve, above-mentioned assembling set is exposed to above-mentioned valve body 1, drive above-mentioned valve rod 2 to rotate with the above-mentioned assembling set of setting tool control; In the time that above-mentioned valve rod 2 is twisted to above-mentioned valve body 1 clockwise, stop valve is closed, otherwise stop valve is opened.Hence one can see that, and above-mentioned valve rod 2 is conveying control devices of the Fluid Volume of gas, liquid, is the regulating and controlling bar of flow and pressure, itself has the function of Leakage prevention gas and liquid.It should be noted that above-mentioned valve rod 2 mates one to one with above-mentioned black box, above-mentioned valve rod 2 can pass above-mentioned black box, and can and above-mentioned black box between form sealing, prevent the leakage of pressurized gas and liquid.
Above-mentioned assembling set has the installation convex button 211 or the mounting hole 212 that coordinate with above-mentioned setting tool, such as above-mentioned setting tool can be hexagon wrench, above-mentioned assembling set has the installation convex button 211 coordinating with above-mentioned hexagon wrench, and the cross section of this installation convex button 211 is hexagon.
Referring to figs. 1 through Fig. 4, above-mentioned valve body 1 comprises the valve seat pipe 11, inlet tube 12 and the outer pipe 13 that interconnect, this inlet tube 12 is between above-mentioned valve seat pipe 11 and above-mentioned outer pipe 13, the free-ended cylindrical of above-mentioned valve seat pipe 11, above-mentioned inlet tube 12 and above-mentioned outer pipe 13 is equipped with screw thread, the inner circle at the middle part of this valve seat pipe 11 has with the valve stem seal face 221 of above-mentioned valve rod 2 and coordinates the valve body sealing surface 111 that forms sealing surface, and this valve seat pipe 11 is integral type or split type with above-mentioned valve body 1.
Above-mentioned valve body 1 is the main body of refrigerator part, the inner circle at the middle part of the valve seat pipe 11 of this valve body 1 has with the valve stem seal face 221 of above-mentioned valve rod 2 and coordinates the valve body sealing surface 111 that forms sealing surface, and this valve body sealing surface 111 can coordinate with above-mentioned valve stem seal face 221 gaplesss.In the time that stop valve is closed, above-mentioned valve body sealing surface 111 fits tightly with above-mentioned valve stem seal face 221, between above-mentioned valve rod 2 and above-mentioned valve body 1, can form and be sealed and matched, and can prevent the leakage of pressurized gas and liquid.
Referring to Fig. 1 and Fig. 2, the non-leakage stopping valve providing according to the embodiment of the present invention, the pipeline rout of the inlet tube 12 on its valve body 1 and the pipeline rout of above-mentioned outer pipe 13 are perpendicular, and this outer pipe 13 is positioned at the side of above-mentioned valve body 1.
Referring to Fig. 3 and Fig. 4, the non-leakage stopping valve providing according to further embodiment of this invention, the pipeline rout of the inlet tube 12 on its valve body 1 is parallel with the pipeline rout of above-mentioned outer pipe 13, and this inlet tube 12 and above-mentioned outer pipe 13 lay respectively at the radially relative both sides of above-mentioned valve body 1.
According to above-mentioned two non-leakage stopping valves that embodiment provides, the non-leakage stopping valve that can select different embodiments to provide according to the different model of refrigerator, further illustrates non-leakage stopping valve provided by the invention and has the advantages that applicability is wide.
According to non-leakage stopping valve provided by the invention, it also comprises dust-proof cover 6, sealed connection nut 7 and dust cap 8, this dust-proof cover 6 is fixedly connected with above-mentioned valve seat pipe 11 by the screw thread of the cylindrical of above-mentioned valve seat pipe 11, and this dust-proof cover 6 has isolated air, anti-oxidation and antirust function; Sealing coupling nut 7 is provided with two and be fixedly connected with above-mentioned outer pipe 13 with above-mentioned inlet tube 12 by the screw thread of above-mentioned inlet tube 12 and the cylindrical of above-mentioned outer pipe 13 respectively, sealing coupling nut 7 is bell metal material, it comprises 30% tin and 70% copper, it has good flexibility and sealing, castability is good simultaneously, wear-resisting and stable chemical nature, is applicable to pressurized gas, fluid, has enough intensity and height constrictive force; This dust cap 8 be provided with two and lay respectively at above-mentioned sealed connection nut 7 and above-mentioned inlet tube 12 and above-mentioned outer pipe 13 between, the material of this dust cap 8 is monomer cast nylon, can ensure that air and dust do not enter in above-mentioned valve body 1, and precision is high.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a non-leakage stopping valve, it comprises valve body (1) and valve rod (2) is in the inner set, described valve body (1) is stretched out in one end of described valve rod (2), wherein, on the position of a described end of the close described valve rod (2) of described valve rod (2), overcoat has black box, described black box comprises tight close neighbour's spiral seal ring (3), seal ring (4) and adjustment pad (5), described seal ring (4) is positioned between described spiral seal ring (3) and described adjustment pad (5), described spiral seal ring (3) is near a described end of described valve rod (2).
2. non-leakage stopping valve according to claim 1, wherein, described seal ring (4) is polytetrafluoroethylmaterial material, described adjustment pad (5) is bronze material.
3. non-leakage stopping valve according to claim 2, wherein, a described end of described valve rod (2) is provided with assembling set, and described assembling set and described valve rod (2) are integrated, and described assembling set can pass described black box.
4. non-leakage stopping valve according to claim 2, wherein, the other end relative with having a described end of described valve rod (2) is provided with cone sealing head (22), described cone sealing head (22) is integrated with described valve rod (2), and the bottom end face of described cone sealing head (22) is formed with valve stem seal face (221).
5. non-leakage stopping valve according to claim 4, wherein, described valve body (1) comprises the valve seat pipe (11) interconnecting, inlet tube (12) and outer pipe (13), described inlet tube (12) is positioned between described valve seat pipe (11) and described outer pipe (13), described valve seat pipe (11), the free-ended cylindrical of described inlet tube (12) and described outer pipe (13) is equipped with screw thread, the inner circle at the middle part of described valve seat pipe (11) has with the valve stem seal face (221) of described valve rod (2) and coordinates the valve body sealing surface (111) that forms sealing surface.
6. non-leakage stopping valve according to claim 5, wherein, the pipeline rout of the pipeline rout of described inlet tube (12) and described outer pipe (13) is perpendicular, and described outer pipe (13) is positioned at the side of described valve body (1).
7. non-leakage stopping valve according to claim 5, wherein, the pipeline rout of described inlet tube (12) is parallel with the pipeline rout of described outer pipe (13), and described inlet tube (12) and described outer pipe (13) lay respectively at the radially relative both sides of described valve body (1).
8. non-leakage stopping valve according to claim 5, wherein, described valve seat pipe (11) is integral type or split type with described valve body (1).
9. according to the non-leakage stopping valve described in any one in claim 5 to 8, wherein, also comprise dust-proof cover (6), sealed connection nut (7) and dust cap (8), described dust-proof cover (6) is fixedly connected with described valve seat pipe (11) by the screw thread of the cylindrical of described valve seat pipe (11), described sealed connection nut (7) is provided with two and be fixedly connected with described outer pipe (13) with described inlet tube (12) by the screw thread of described inlet tube (12) and the cylindrical of described outer pipe (13) respectively, described dust cap (8) be provided with two and lay respectively at described sealed connection nut (7) and described inlet tube (12) and described outer pipe (13) between.
10. non-leakage stopping valve according to claim 9, wherein, described sealed connection nut (7) is bell metal material, it comprises 30% tin and 70% copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367761.0A CN104154246A (en) | 2014-07-29 | 2014-07-29 | Leak-proof stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367761.0A CN104154246A (en) | 2014-07-29 | 2014-07-29 | Leak-proof stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104154246A true CN104154246A (en) | 2014-11-19 |
Family
ID=51879825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410367761.0A Pending CN104154246A (en) | 2014-07-29 | 2014-07-29 | Leak-proof stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104154246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015350A1 (en) * | 2018-07-17 | 2020-01-23 | 珠海格力电器股份有限公司 | Charging valve, air conditioning system and electric vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2170419Y (en) * | 1993-07-24 | 1994-06-29 | 中山市调节阀厂 | Sealing structure of angle type stop valve for air conditioner |
| US20030062495A1 (en) * | 2001-08-17 | 2003-04-03 | Long Ted A. | Fluid control valve with low pressure drop ratio factor |
| CN202469018U (en) * | 2011-12-13 | 2012-10-03 | 新昌县利永达制冷机械有限公司 | Straight-through stop valve for cooling |
| CN203099036U (en) * | 2013-03-28 | 2013-07-31 | 浙江景加源机械有限公司 | Valve body structure of electromagnetic valve |
| CN204004450U (en) * | 2014-07-29 | 2014-12-10 | 重庆市蜀宇气动元器件成套技术公司 | Non-leakage stopping valve |
-
2014
- 2014-07-29 CN CN201410367761.0A patent/CN104154246A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2170419Y (en) * | 1993-07-24 | 1994-06-29 | 中山市调节阀厂 | Sealing structure of angle type stop valve for air conditioner |
| US20030062495A1 (en) * | 2001-08-17 | 2003-04-03 | Long Ted A. | Fluid control valve with low pressure drop ratio factor |
| CN202469018U (en) * | 2011-12-13 | 2012-10-03 | 新昌县利永达制冷机械有限公司 | Straight-through stop valve for cooling |
| CN203099036U (en) * | 2013-03-28 | 2013-07-31 | 浙江景加源机械有限公司 | Valve body structure of electromagnetic valve |
| CN204004450U (en) * | 2014-07-29 | 2014-12-10 | 重庆市蜀宇气动元器件成套技术公司 | Non-leakage stopping valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015350A1 (en) * | 2018-07-17 | 2020-01-23 | 珠海格力电器股份有限公司 | Charging valve, air conditioning system and electric vehicle |
| US11506298B2 (en) | 2018-07-17 | 2022-11-22 | Gree Electric Appliances, Inc. Of Zhuhai | Charging valve, air conditioning system and electric vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20141119 |