CN113418015A - Refrigeration valve with locking protection mechanism - Google Patents
Refrigeration valve with locking protection mechanism Download PDFInfo
- Publication number
- CN113418015A CN113418015A CN202110965352.0A CN202110965352A CN113418015A CN 113418015 A CN113418015 A CN 113418015A CN 202110965352 A CN202110965352 A CN 202110965352A CN 113418015 A CN113418015 A CN 113418015A
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- China
- Prior art keywords
- valve
- ring
- sealing
- strip
- protection mechanism
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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
- 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
- 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
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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
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a refrigeration valve with a locking protection mechanism, which comprises a valve seat, wherein the valve seat is provided with a valve rod connecting mechanism, the bottom end of the valve rod connecting mechanism is provided with the protection mechanism, the protection mechanism comprises an electric push rod, a square guide sleeve, an elongated connecting rod, a square positioning block, a locking cover, a first sealing strip, a second sealing strip and a positioning locking strip, one end of the electric push rod is fixedly provided with the positioning locking strip, one side of the positioning locking strip is connected with the first sealing strip in a sliding manner, and the other side of the positioning locking strip is connected with the second sealing strip in a sliding manner. The invention can effectively enhance the regulation stability of the refrigeration valve and improve the regulation effect by carrying out locking protection when the refrigeration valve structure carries out pipeline diversion regulation.
Description
Technical Field
The invention relates to the technical field of refrigeration valves, in particular to a refrigeration valve with a locking protection mechanism.
Background
The air conditioner needs to use a refrigeration valve to adjust the refrigeration flow direction in the refrigeration process, and the basic structure of the refrigeration valve consists of a coil and a movable iron core positioned in the coil; when the coil of the refrigeration valve is electrified, a magnetic field is generated to drive the iron core, the valve is opened by the movement of the iron core, and the resetting action of the valve is completed by utilizing the gravity of the valve core and the elastic force of a spring arranged at the top of the valve core.
The existing refrigeration valve is easy to be influenced by the pressure in the pipeline when the pipeline is closed and adjusted, so that the sealing property is poor, and the structural stability is low.
Disclosure of Invention
The invention aims to provide a refrigeration valve with a locking protection mechanism, which aims to solve the problems that the existing refrigeration valve proposed in the background art is easy to be subjected to pressure in a pipeline when the pipeline is closed and adjusted, so that the sealing performance is poor, the structural stability is low and the like.
In order to achieve the purpose, the invention provides the following technical scheme: a refrigeration valve with a locking protection mechanism comprises a valve seat, a valve rod connecting mechanism is arranged on the valve seat, the bottom end of the valve rod connecting mechanism is provided with the protection mechanism, the protection mechanism comprises an electric push rod, a square guide sleeve, a lengthened connecting rod, a square positioning block, a locking cover, a first sealing strip, a second sealing strip and a positioning locking strip, one end of the electric push rod is fixedly provided with a positioning locking strip, one side of the positioning locking strip is connected with a first sealing strip in a sliding way, the other side of the positioning locking strip is connected with a second sealing strip in a sliding way, the outer sides of the first sealing strip and the second sealing strip are fixedly provided with square guide sleeves, one end of the positioning locking strip is provided with a square positioning block, the bottom end of the square positioning block is provided with a locking cover, the inboard of locking lid is installed the extension connecting rod, sealed stop gear is installed in the outside of valve rod coupling mechanism upper end.
Preferably, the valve rod connecting mechanism is connected with the valve seat through a sealing connecting ring.
Preferably, drive mechanism includes seal receptacle, mounting box, coil main part, supporting spring and iron core, the inside of mounting box is provided with the coil main part, the inboard sliding connection at mounting box middle part has the iron core, the upper end of iron core is provided with supporting spring, the seal receptacle is installed to supporting spring's upper end.
Preferably, the sealing and limiting mechanism comprises a buffer ring, a support ring, a connection ring and a retaining sheet, the support ring is installed on the outer side of the connection ring, the buffer ring is arranged on the upper end face of the support ring, and the retaining sheet is installed on the upper end face of the buffer ring.
Preferably, the valve rod connecting mechanism comprises a valve rod main body, a sealing conical head and a threaded ring, the sealing conical head is installed at the bottom end of the valve rod main body, and the valve rod main body is connected with the sealing conical head through the threaded ring.
Preferably, the bottom end of the lengthened connecting rod penetrates through the square positioning block and is connected with the locking cover through threads, three positioning grooves are formed in the two sides of the square positioning block, and one end of the positioning locking strip extends to the inner side of one positioning groove.
Preferably, one end of the electric push rod penetrates through the square guide sleeve and is fixedly connected with the positioning locking strip through a screw, and the positioning locking strip is connected with the square guide sleeve through a first sealing strip and a second sealing strip.
Preferably, the seal receptacle passes through threaded connection with the mounting box, the seal receptacle passes through supporting spring with the iron core and is connected, the mounting box passes through the screw with the disk seat and is connected fixedly, the inboard of mounting box and seal receptacle is provided with sealed the pad.
Preferably, the connecting ring is in threaded connection with the support ring, the buffer ring is fixedly bonded with the support ring, and the retaining sheet is made of stainless steel.
Preferably, the upper end of the sealing conical head extends to the inner side of the bottom end of the valve rod main body through the threaded ring, and the bottom end of the valve rod main body is in threaded connection with the threaded ring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, after a magnetic field is formed by electrifying the coil main body, the iron core is driven to move downwards on the inner side of the mounting box, and then the iron core drives the sealing conical head to be inserted into the inner side of the sealing connecting ring through the valve rod main body, so that a pipeline is conveniently sealed, the valve rod main body is connected with the sealing conical head through the threaded ring, and the valve rod main body and the sealing conical head are conveniently locked and mounted through the threaded ring;
2. the positioning locking strip is driven by the electric push rod to slide on the inner sides of the first sealing strip and the second sealing strip, the positioning locking strip is clamped with the square positioning block, so that the sealing conical head is fixed conveniently, and the stability of the whole refrigerating valve during adjustment is effectively improved;
3. according to the invention, the height of the square positioning block is adjusted, so that the protection effect on the structure in different adjusting states can be effectively met, and the square positioning block and the lengthened connecting rod are fixedly connected through the locking cover, so that the square positioning block is convenient to disassemble and assemble, and is convenient to overhaul and replace;
4. according to the invention, the buffer ring is arranged on the inner sides of the retaining sheet and the support ring, so that the valve rod main body is convenient to buffer through the buffer ring when moving upwards, and the retaining sheet is in contact with the inner wall of the valve seat, so that the shape of the buffer ring is convenient to be unchanged, and the service life is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a side view of the present invention in its entirety;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of a partial cross-sectional structure of the transmission mechanism of the present invention;
FIG. 5 is a schematic cross-sectional view of the sealing and spacing mechanism of the present invention;
fig. 6 is a partial structural view of the locking bar of the present invention.
In the figure: 1. a valve seat; 2. a protection mechanism; 201. an electric push rod; 202. a square guide sleeve; 203. lengthening the connecting rod; 204. a square positioning block; 205. a locking cover; 206. a first seal strip; 207. a second seal strip; 208. positioning the locking bar; 3. a transmission mechanism; 301. a sealing seat; 302. mounting a box; 303. a coil body; 304. a support spring; 305. an iron core; 4. a sealing and limiting mechanism; 401. a buffer ring; 402. a support ring; 403. a connecting ring; 404. a retention sheet; 5. a valve stem connection mechanism; 501. a valve stem body; 502. sealing the conical head; 503. a threaded ring; 6. and sealing the connecting ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 6, an embodiment of the present invention includes: a refrigeration valve with a locking protection mechanism comprises a valve seat 1, wherein the valve seat 1 is provided with a valve rod connecting mechanism 5, the bottom end of the valve rod connecting mechanism 5 is provided with a protection mechanism 2, the protection mechanism 2 comprises an electric push rod 201, a square guide sleeve 202, an elongated connecting rod 203, a square positioning block 204, a locking cover 205, a first sealing strip 206, a second sealing strip 207 and a positioning locking strip 208, one end of the electric push rod 201 is fixedly provided with the positioning locking strip 208, one side of the positioning locking strip 208 is connected with the first sealing strip 206 in a sliding manner, the other side of the positioning locking strip 208 is connected with the second sealing strip 207 in a sliding manner, the outer sides of the first sealing strip 206 and the second sealing strip 207 are fixedly provided with the square guide sleeve 202, one end of the positioning locking strip 208 is provided with the square positioning block 204, the square positioning locking strip 208 and the square positioning block 204 are clamped with each other so as to be convenient for locking the whole, the bottom end of the square positioning block 204 is provided with the locking cover 205, the square positioning block 204 is convenient to disassemble, assemble and replace through the locking cover 205, the lengthened connecting rod 203 is installed on the inner side of the locking cover 205, the sealing limiting mechanism 4 is installed on the outer side of the upper end of the valve rod connecting mechanism 5, the whole refrigerating valve structure is locked and protected when conducting pipeline diversion adjustment, and the adjusting stability and the adjusting effect of the refrigerating valve can be effectively enhanced.
The valve rod connecting mechanism 5 is connected with the valve seat 1 through the sealing connecting ring 6, and the sealing effect of the valve rod connecting mechanism 5 on the valve seat 1 is improved conveniently through the sealing connecting ring 6.
The transmission mechanism 3 comprises a sealing seat 301, a mounting box 302, a coil body 303, a supporting spring 304 and an iron core 305, the coil body 303 is arranged inside the mounting box 302, the iron core 305 is slidably connected to the inner side of the middle of the mounting box 302, the supporting spring 304 is arranged at the upper end of the iron core 305, the sealing seat 301 is arranged at the upper end of the supporting spring 304, and the valve rod is convenient to transmit and adjust through the transmission mechanism 3.
The sealing and limiting mechanism 4 comprises a buffer ring 401, a support ring 402, a connection ring 403 and a retaining sheet 404, the support ring 402 is mounted on the outer side of the connection ring 403, the buffer ring 401 is arranged on the upper end face of the support ring 402, the retaining sheet 404 is mounted on the upper end face of the buffer ring 401, and the structure can be conveniently buffered and sealed through the sealing and limiting mechanism 4.
The valve rod connecting mechanism 5 comprises a valve rod main body 501, a sealing conical head 502 and a threaded ring 503, the sealing conical head 502 is installed at the bottom end of the valve rod main body 501, the valve rod main body 501 is connected with the sealing conical head 502 through the threaded ring 503, and sealing and flow regulation are facilitated for the valve seat 1 through the valve rod connecting mechanism 5.
The bottom end of the lengthened connecting rod 203 penetrates through the square positioning block 204 and is connected with the locking cover 205 through threads, three positioning grooves are formed in the two sides of the square positioning block 204, one end of the positioning locking strip 208 extends to the inner side of one of the positioning grooves, and the square positioning block 204 is convenient to disassemble, assemble and replace through the locking cover 205.
One end of the electric push rod 201 penetrates through the square guide sleeve 202 and is fixedly connected with the positioning locking strip 208 through a screw, the positioning locking strip 208 and the square guide sleeve 202 are connected through the first sealing strip 206 and the second sealing strip 207, and the positioning locking strip 208 and the square positioning block 204 are clamped with each other, so that the whole body can be conveniently locked.
The connecting ring 403 is in threaded connection with the support ring 402, the buffer ring 401 is fixedly bonded with the support ring 402, the retaining sheet 404 is made of stainless steel, and buffering is facilitated through the buffer ring 401.
The upper end of the sealing conical head 502 penetrates through the threaded ring 503 and extends to the inner side of the bottom end of the valve stem main body 501, the bottom end of the valve stem main body 501 is connected with the threaded ring 503 through threads, and the valve stem main body 501 and the sealing conical head 502 are conveniently locked and installed through the threaded ring 503.
When the valve seat is used, whether the functions of all parts are good or not is checked, one end of the square guide sleeve 202 is welded and fixed with the valve seat 1, one end of the electric push rod 201 penetrates through the square guide sleeve 202 and is connected and fixed with the positioning locking strip 208 through screws, a power supply is switched on, two ends of the valve seat 1 are connected and fixed with a pipeline through screws, when the pipeline is adjusted, the coil body 303 is electrified to form a magnetic field, the driving iron core 305 moves downwards on the inner side of the mounting box 302, the iron core 305 drives the sealing conical head 502 to be inserted into the inner side of the sealing connecting ring 6 through the valve rod body 501, the pipeline is sealed conveniently, the valve rod body 501 is connected with the sealing conical head 502 through the threaded ring 503, the valve rod body 501 and the sealing conical head 502 are locked and mounted conveniently through the threaded ring 503, meanwhile, the sealing conical head 502 drives the lengthened connecting rod 203 to move downwards, the electric push rod 201 is started, and the electric push rod 201 drives the positioning locking strip 208 to move downwards on the first sealing strip 206 and the second sealing strip 206 under the supporting action of the valve seat 1 The inner sides of the two sealing strips 207 slide, and the two sides of the square positioning block 204 are respectively provided with three positioning grooves, so that one end of the positioning locking strip 208 is inserted into the inner side of one positioning groove, and the sealing conical head 502 is fixed conveniently by clamping the positioning locking strip 208 and the square positioning block 204, and the stability of the whole refrigerating valve during adjustment is effectively improved;
the positioning locking strip 208 is inserted when the height of the square positioning block 204 is adjusted, the protection effect on the structure when different adjustment states can be effectively met, the upper end of the lengthened connecting rod 203 is in threaded connection with the sealing conical head 502, the square positioning block 204 and the lengthened connecting rod 203 are fixedly connected through the locking cover 205, the square positioning block 204 is further convenient to disassemble and assemble, the maintenance and the replacement are convenient, the sealing limiting mechanism 4 is fixedly installed on the outer side of the middle part of the valve rod main body 501, the buffering ring 401 is installed on the inner sides of the retaining sheet 404 and the supporting ring 402, the buffering is convenient to perform through the buffering ring 401 when the valve rod main body 501 moves upwards, the retaining sheet 404 is in contact with the inner wall of the valve seat 1, the shape of the buffering ring 401 is convenient to change, and the service life is prolonged.
Claims (10)
1. The utility model provides a refrigeration valve with shutting protection mechanism, includes disk seat (1), disk seat (1) is equipped with valve rod coupling mechanism (5), drive mechanism (3), its characterized in that are installed to the upper end of valve rod coupling mechanism (5): the protection mechanism (2) is installed at the bottom end of the valve rod connecting mechanism (5), the protection mechanism (2) comprises an electric push rod (201), a square guide sleeve (202), a lengthened connecting rod (203), a square positioning block (204), a locking cover (205), a first sealing strip (206), a second sealing strip (207) and a positioning locking strip (208), one end of the electric push rod (201) is fixedly provided with the positioning locking strip (208), one side of the positioning locking strip (208) is slidably connected with the first sealing strip (206), the other side of the positioning locking strip (208) is slidably connected with the second sealing strip (207), the square guide sleeve (202) is fixedly installed on the outer sides of the first sealing strip (206) and the second sealing strip (207), the square positioning block (204) is installed at one end of the positioning locking strip (208), the locking cover (205) is installed at the bottom end of the square positioning block (204), the inboard of locking lid (205) is installed extension connecting rod (203), sealed stop gear (4) are installed to the outside of valve rod coupling mechanism (5) upper end.
2. A refrigeration valve with lockout protection mechanism as claimed in claim 1 wherein: the valve rod connecting mechanism (5) is connected with the valve seat (1) through a sealing connecting ring (6).
3. A refrigeration valve with lockout protection mechanism as claimed in claim 1 wherein: drive mechanism (3) are including seal receptacle (301), mounting box (302), coil main part (303), supporting spring (304) and iron core (305), the inside of mounting box (302) is provided with coil main part (303), the inboard sliding connection at mounting box (302) middle part has iron core (305), the upper end of iron core (305) is provided with supporting spring (304), seal receptacle (301) are installed to the upper end of supporting spring (304).
4. A refrigeration valve with lockout protection mechanism as claimed in claim 1 wherein: the sealing and limiting mechanism (4) comprises a buffer ring (401), a support ring (402), a connection ring (403) and a retaining sheet (404), the support ring (402) is installed on the outer side of the connection ring (403), the buffer ring (401) is arranged on the upper end face of the support ring (402), and the retaining sheet (404) is installed on the upper end face of the buffer ring (401).
5. A refrigeration valve with lockout protection mechanism as claimed in claim 2 wherein: the valve rod connecting mechanism (5) comprises a valve rod main body (501), a sealing conical head (502) and a threaded ring (503), the sealing conical head (502) is installed at the bottom end of the valve rod main body (501), and the valve rod main body (501) is connected with the sealing conical head (502) through the threaded ring (503).
6. A refrigeration valve with lockout protection mechanism as claimed in claim 1 wherein: the bottom of extension connecting rod (203) runs through square locating piece (204) and is connected through screw thread and locking lid (205), the both sides of square locating piece (204) all are provided with three constant head tank, the one end of location locking strip (208) extends to the inboard of one of them constant head tank.
7. A refrigeration valve with lockout protection mechanism as claimed in claim 1 wherein: one end of the electric push rod (201) penetrates through the square guide sleeve (202) and is fixedly connected with the positioning locking strip (208) through a screw, and the positioning locking strip (208) is connected with the square guide sleeve (202) through a first sealing strip (206) and a second sealing strip (207).
8. A refrigeration valve with lockout protection mechanism as claimed in claim 3 wherein: seal receptacle (301) and mounting box (302) pass through threaded connection, seal receptacle (301) are connected through supporting spring (304) with iron core (305), mounting box (302) are fixed through bolted connection with valve seat (1), mounting box (302) are provided with sealed the pad with the inboard of seal receptacle (301).
9. A refrigeration valve with lockout protection mechanism as claimed in claim 4, wherein: the connecting ring (403) is in threaded connection with the support ring (402), the buffer ring (401) is fixedly bonded with the support ring (402), and the retaining sheet (404) is made of stainless steel.
10. A refrigeration valve with lockout protection mechanism as claimed in claim 5, wherein: the upper end of the sealing conical head (502) penetrates through the threaded ring (503) and extends to the inner side of the bottom end of the valve rod main body (501), and the bottom end of the valve rod main body (501) is connected with the threaded ring (503) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965352.0A CN113418015B (en) | 2021-08-23 | 2021-08-23 | Refrigeration valve with locking protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965352.0A CN113418015B (en) | 2021-08-23 | 2021-08-23 | Refrigeration valve with locking protection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113418015A true CN113418015A (en) | 2021-09-21 |
| CN113418015B CN113418015B (en) | 2021-11-05 |
Family
ID=77719722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110965352.0A Active CN113418015B (en) | 2021-08-23 | 2021-08-23 | Refrigeration valve with locking protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113418015B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561127U (en) * | 2009-08-31 | 2010-08-25 | 潘佩聪 | Special oxygen emergent stop valve |
| CN106286957A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | Through type control valve |
| CN106369178A (en) * | 2016-10-28 | 2017-02-01 | 江阴市天润机械制造有限公司 | Solenoid valve with long service life |
| CN108730608A (en) * | 2018-06-26 | 2018-11-02 | 芜湖裕优机械科技有限公司 | A kind of safety valve and its working method of hot water supply system |
| CN210950130U (en) * | 2019-10-23 | 2020-07-07 | 浙江良开阀门有限公司 | Multifunctional water pump control high-pressure valve |
| CN212959866U (en) * | 2020-07-14 | 2021-04-13 | 富山阀门实业(东台)有限公司 | High-strength stop valve |
-
2021
- 2021-08-23 CN CN202110965352.0A patent/CN113418015B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561127U (en) * | 2009-08-31 | 2010-08-25 | 潘佩聪 | Special oxygen emergent stop valve |
| CN106286957A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | Through type control valve |
| CN106369178A (en) * | 2016-10-28 | 2017-02-01 | 江阴市天润机械制造有限公司 | Solenoid valve with long service life |
| CN108730608A (en) * | 2018-06-26 | 2018-11-02 | 芜湖裕优机械科技有限公司 | A kind of safety valve and its working method of hot water supply system |
| CN210950130U (en) * | 2019-10-23 | 2020-07-07 | 浙江良开阀门有限公司 | Multifunctional water pump control high-pressure valve |
| CN212959866U (en) * | 2020-07-14 | 2021-04-13 | 富山阀门实业(东台)有限公司 | High-strength stop valve |
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| Publication number | Publication date |
|---|---|
| CN113418015B (en) | 2021-11-05 |
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