CN112253825A - Exhaust valve capable of improving exhaust efficiency - Google Patents
Exhaust valve capable of improving exhaust efficiency Download PDFInfo
- Publication number
- CN112253825A CN112253825A CN202011141425.6A CN202011141425A CN112253825A CN 112253825 A CN112253825 A CN 112253825A CN 202011141425 A CN202011141425 A CN 202011141425A CN 112253825 A CN112253825 A CN 112253825A
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- exhaust
- valve body
- ring
- valve
- cylinder
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/08—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0473—Multiple-way safety 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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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
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention provides an exhaust valve for improving exhaust efficiency, wherein the lower end of a valve seat is provided with an air inlet for high-pressure air to enter, a floating ball for opening or closing the air inlet is installed in a valve body, the upper end of the floating ball is connected with a twist rod, a compression spring is wound on the twist rod, a circular ring with an inner ring in a spiral shape matched with the twist rod is spirally sleeved on the twist rod, a limiting device for preventing the circular ring from moving up and down is installed in the valve body, and the upper end of the circular ring is circumferentially connected with a plurality of fan blades which are distributed in an equidistant annular shape and used for accelerating the high-pressure air to be. The ring drives the fan blades to rotate, so that high-pressure gas is exhausted from the main exhaust hole at an accelerated speed, the exhaust rate is improved, the high-pressure gas is exhausted from the auxiliary exhaust hole at an accelerated speed, the equipment is prevented from being damaged due to high-pressure expansion, the double acceleration is realized, the exhaust efficiency is effectively improved, the service life of the equipment is prolonged, and the substantial characteristics and the remarkable progress are realized.
Description
Technical Field
The invention relates to the technical field of valves, in particular to an exhaust valve capable of improving exhaust efficiency.
Background
The exhaust valve is an essential auxiliary element in a pipeline system and is widely applied to boilers, petroleum and natural gas pipelines and water supply and drainage pipelines. The gas-liquid separator is often arranged at a height-making point or an elbow and the like, so that redundant gas in a pipeline is discharged, the use efficiency of the pipeline is improved, and the energy consumption is reduced. In the operation process of the heating and ventilation system and the heating and ventilation air-conditioning system, a plurality of adverse effects caused by gases (such as hydrogen, oxygen and the like) released by water during heating can damage the system and reduce the heat effect, and if the gases cannot be discharged in time, a plurality of adverse results can be generated. Such as: corrosion due to oxidation; forming an air bag in the radiator; hot water circulation is not smooth and balanced, so that some radiators are not hot locally; noise when the pipeline is running with air; vortex-void phenomenon of the circulation pump. The existing exhaust valve is low in exhaust efficiency, high-pressure gas cannot be exhausted quickly, and the expansion and damage of the pipe wall are easily caused.
Disclosure of Invention
Therefore, the present invention is directed to an exhaust valve with improved exhaust efficiency, and the main objective of the present invention is to overcome the problem that the conventional exhaust valve cannot rapidly and effectively exhaust high-pressure gas.
In order to realize the technical problem, the solution scheme adopted by the invention is as follows:
the utility model provides an improve exhaust efficiency's discharge valve, includes the valve body and installs the upper cover in the valve body upper end, and the main exhaust port that is used for discharging high-pressure gas with the inside intercommunication of valve body is seted up at the middle part of upper cover, the disk seat is installed to the lower part of valve body inner chamber, and the inlet port that is used for high-pressure gas to get into is offered to the lower extreme of disk seat, installs in the valve body to be used for realizing the floater of opening or closing to the inlet port, and the upper end of floater is connected with the fried dough twist pole, and around there being compression spring on the fried dough twist pole, compression spring's both ends are connected with the lateral wall of fried dough twist pole and the diapire of upper cover respectively, the spiral has cup jointed the inner circle on the fried dough twist pole and is the ring that matches the spiral with the fried dough twist pole.
The further improvement is that: the lateral wall symmetry of valve body is pegged graft and is had two cylinders that are located same horizontal plane with the ring, swing joint has the piston in the cylinder, and the one end that the ring was kept away from to the piston is connected with the piston rod, and it has reset spring to surround on the piston rod, reset spring's both ends respectively with the lateral wall of piston rod and the interior wall connection of cylinder, the one end of the directional ring of piston is connected with the connecting piece, and the other end of connecting piece is connected with the spur rack, the outside fixed cover of ring be located between two spur racks and with the gear of spur rack meshing, offer on the roof of cylinder and be used for carminative supplementary.
The further improvement is that: the connecting piece is of a folded plate structure with an obtuse angle.
The further improvement is that: one side of the cylinder close to the valve body is of an open structure.
The further improvement is that: the distance between the auxiliary exhaust hole and the inner side wall of the cylinder far away from one end of the valve body is smaller than the distance between the piston and the inner side wall of the cylinder far away from one end of the valve body.
The further improvement is that: stop device includes two L type poles of symmetric connection on the valve body inside wall, and the other end of L type pole is connected with the slider, the gliding annular spout of confession slider is seted up to the up end of ring.
The further improvement is that: the valve seat is of a horn-shaped structure inclined towards the air inlet.
The further improvement is that: the upper end of the valve seat close to the air inlet is circumferentially in an arc structure matched with the floating ball to form surface sealing.
By adopting the technical scheme, the invention has the beneficial effects that: the exhaust valve for improving the exhaust efficiency can push the floating ball to jack up and move up after the air pressure in the equipment reaches a certain value, high-pressure gas enters the valve body and is exhausted from the main exhaust hole, the twist rod is driven to move upwards under the limit of the compression spring, the twist rod is fixed due to the spiral structure of the twist rod to drive the circular ring to rotate, the circular ring drives the fan blades to rotate, thereby accelerating the discharge of high-pressure gas from the main exhaust hole and improving the exhaust rate, meanwhile, the circular ring drives the gear to rotate, the two straight racks meshed with the gear move in opposite directions, therefore, the piston is pushed to move towards the inside of the cylinder, when the piston moves to the other side of the auxiliary exhaust hole, high-pressure gas is exhausted from the auxiliary exhaust hole, the high-pressure gas is exhausted in an accelerated mode, the damage of equipment due to high-pressure expansion is prevented, double acceleration is achieved, the exhaust efficiency is effectively improved, the service life of the equipment is prolonged, and the piston has outstanding substantive characteristics and remarkable progress.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged view of the cross section A-A of FIG. 1 according to the present invention.
The reference numbers in the figures illustrate: the air-pressure type air-pressure valve comprises a valve body 1, a valve seat 2, an air inlet 3, a floating ball 4, a twisted rod 5, a circular ring 51, an upper cover 6, a main exhaust hole 7, a gear 8, an L-shaped rod 9, a sliding block 10, a straight rack 11, a connecting piece 12, a piston 13, a piston rod 14, a return spring 15, an air cylinder 16, an auxiliary exhaust hole 17, fan blades 18 and a compression spring 19.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention will now be further described with reference to the accompanying figures 1-2 and specific examples.
An exhaust valve for improving exhaust efficiency comprises a valve body 1 and an upper cover 6 arranged at the upper end of the valve body 1, wherein the middle part of the upper cover 6 is provided with a main exhaust hole 7 communicated with the inside of the valve body 1 and used for exhausting high-pressure gas, the lower part of the inner cavity of the valve body 1 is provided with a valve seat 2, the lower end of the valve seat 2 is provided with an air inlet 3 used for allowing the high-pressure gas to enter, the valve seat 2 is of a horn-shaped structure inclined towards the air inlet 3, liquid drops formed by high-temperature high-pressure gas liquefaction can fall conveniently, a floating ball 4 used for opening or closing the air inlet 3 is arranged in the valve body 1, the upper end of the valve seat 2 close to the air inlet 3 is circumferentially of an arc-shaped structure matched with the floating ball 4 to form surface sealing, the upper end of the floating ball 4 is connected with a twist rod 5, a compression spring 19 is wound on the twist rod 5, two ends of the compression spring 19 are respectively connected with the side, install the stop device who prevents ring 51 and reciprocate in the valve body 1, stop device includes two L type poles 9 of symmetric connection on the 1 inside wall of valve body, and the other end of L type pole 9 is connected with slider 10, and the gliding annular spout of confession slider 10 is seted up to ring 51's upper end face, and ring 51's upper end circumferential connection has a plurality of equidistance annular distribution to be used for accelerating high-pressure gas exhaust flabellum 18.
The lateral wall symmetry of valve body 1 is pegged graft there are two and is located cylinder 16 on the same horizontal plane with ring 51, one side that cylinder 16 is close to valve body 1 is open structure, swing joint has piston 13 in the cylinder 16, the one end that ring 51 was kept away from to piston 13 is connected with piston rod 14, it has reset spring 15 to surround on the piston rod 14, reset spring 15's both ends respectively with piston rod 14's lateral wall and cylinder 16's inner wall connection, the directional ring 51's of piston 13 one end is connected with connecting piece 12, the other end of connecting piece 12 is connected with spur rack 11, connecting piece 12 is for being obtuse folded plate structure, make two spur rack 11 be located the both sides of gear 8, the outside fixed cover of ring 51 is equipped with and is located between two spur rack 11 and with spur rack 11 meshed gear 8, set up on the roof of cylinder 16 and be used for carminative supplementary exhaust hole 17, supplementary exhaust hole 17 and cylinder 16 keep away from the distance between the inside wall of valve The distance between the walls.
The exhaust valve for improving the exhaust efficiency can push the floating ball 4 upwards after the air pressure in the equipment reaches a certain value, the floating ball 4 moves upwards, high-pressure gas enters the valve body 1 and is exhausted from the main exhaust hole 7, the twisted rod 5 is driven to move upwards under the limit of the compression spring 19, due to the spiral structure of the twisted rod 5, the twisted rod 5 does not move, the ring 51 is driven to rotate, the ring 51 drives the fan blades 18 to rotate, so that the high-pressure gas is exhausted from the main exhaust hole 7 at an accelerated speed, the exhaust rate is improved, meanwhile, the ring 51 drives the gear 8 to rotate, the two straight racks 11 meshed with the gear 8 move in opposite directions, the piston 13 is pushed to move towards the cylinder 16, when the piston 13 moves to the other side of the auxiliary exhaust hole 17, the high-pressure gas is exhausted from the auxiliary exhaust hole 17 at an accelerated speed, the equipment is prevented from being damaged due to high-pressure expansion, and double acceleration is realized, effectively improve the exhaust efficiency, prolong the service life of equipment, and have prominent substantive characteristics and remarkable progress.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an improve exhaust efficiency's discharge valve, includes valve body (1) and installs upper cover (6) in valve body (1) upper end, the middle part of upper cover (6) seted up with valve body (1) inside intercommunication be used for discharging high-pressure gas main exhaust hole (7), its characterized in that: disk seat (2) are installed to the lower part of valve body (1) inner chamber, and inlet port (3) that are used for high-pressure gas to get into are seted up to the lower extreme of disk seat (2), install in valve body (1) and be used for realizing opening or floater (4) closed inlet port (3), and the upper end of floater (4) is connected with fiber crops pole (5), and it has compression spring (19) to encircle on fiber crops pole (5), and the both ends of compression spring (19) are connected with the lateral wall of fiber crops pole (5) and the diapire of upper cover (6) respectively, spiral cover has connect on fiber crops pole (5) inner circle and is ring (51) that match the spiral with fiber crops pole (5), installs the stop device that prevents ring (51) and reciprocate in valve body (1), the upper end circumferential connection of ring (51) has a plurality of being equidistance annular distribution and is used for accelerating high-pressure gas exhaust flabellum (.
2. The exhaust efficiency improving exhaust valve according to claim 1, wherein: the lateral wall symmetry of valve body (1) is pegged graft and is had two cylinder (16) that lie in on the same horizontal plane with ring (51), swing joint has piston (13) in cylinder (16), and the one end that ring (51) were kept away from in piston (13) is connected with piston rod (14), and it has reset spring (15) to surround on piston rod (14), and the both ends of reset spring (15) are connected with the lateral wall of piston rod (14) and the inner wall of cylinder (16) respectively, the one end of directional ring (51) of piston (13) is connected with connecting piece (12), and the other end of connecting piece (12) is connected with spur rack (11), and the outside fixed cover of ring (51) is equipped with and is located between two spur rack (11) and with gear (8) of spur rack (11) meshing, offer on the cylinder (16) and be used for carminative supplementary exhaust hole (17).
3. The exhaust efficiency improving exhaust valve according to claim 2, wherein: the connecting piece (12) is of a folded plate structure with an obtuse angle.
4. The exhaust efficiency improving exhaust valve according to claim 2, wherein: one side of the cylinder (16) close to the valve body (1) is of an open structure.
5. The exhaust efficiency improving exhaust valve according to claim 2, wherein: the distance between the auxiliary exhaust hole (17) and the inner side wall of one end, far away from the valve body (1), of the air cylinder (16) is smaller than the distance between the piston (13) and the inner side wall of one end, far away from the valve body (1), of the air cylinder (16).
6. The exhaust efficiency improving exhaust valve according to claim 1, wherein: stop device includes two L type poles (9) of symmetric connection on valve body (1) inside wall, and the other end of L type pole (9) is connected with slider (10), the gliding annular spout of confession slider (10) is seted up to the up end of ring (51).
7. The exhaust efficiency improving exhaust valve according to claim 1, wherein: the valve seat (2) is of a horn-shaped structure which inclines towards the air inlet hole (3).
8. The exhaust efficiency improving exhaust valve according to claim 7, wherein: the upper end of the valve seat (2) close to the air inlet hole (3) is circumferentially matched with the floating ball (4) to form an arc-shaped structure with a sealed surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011141425.6A CN112253825B (en) | 2020-10-22 | 2020-10-22 | Exhaust valve capable of improving exhaust efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011141425.6A CN112253825B (en) | 2020-10-22 | 2020-10-22 | Exhaust valve capable of improving exhaust efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112253825A true CN112253825A (en) | 2021-01-22 |
| CN112253825B CN112253825B (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011141425.6A Active CN112253825B (en) | 2020-10-22 | 2020-10-22 | Exhaust valve capable of improving exhaust efficiency |
Country Status (1)
| Country | Link |
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| CN (1) | CN112253825B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117001923A (en) * | 2023-06-27 | 2023-11-07 | 宁波优诺姆机械有限公司 | Exhaust type injection molding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100994798B1 (en) * | 2010-04-28 | 2010-11-17 | 주식회사 충남도시가스 | Built in type gas cutoff apparatus |
| CN202972049U (en) * | 2012-12-25 | 2013-06-05 | 浙江工贸职业技术学院 | Automatic rotary type backflow-preventing valve |
| CN107940048A (en) * | 2017-11-22 | 2018-04-20 | 解钟敏 | Self-enclosed gas safety valving |
| CN109538795A (en) * | 2018-08-24 | 2019-03-29 | 严勇 | A kind of float type check valve |
| CN210240744U (en) * | 2019-03-08 | 2020-04-03 | 河南宇宙流体科技有限公司 | Quick exhaust valve for heating system |
| CN210510410U (en) * | 2019-09-06 | 2020-05-12 | 福建金化科技有限公司 | Rapid pressure relief device for production and processing of film forming additive |
| WO2020093184A1 (en) * | 2018-11-05 | 2020-05-14 | 卢润侨 | Pump control valve |
-
2020
- 2020-10-22 CN CN202011141425.6A patent/CN112253825B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100994798B1 (en) * | 2010-04-28 | 2010-11-17 | 주식회사 충남도시가스 | Built in type gas cutoff apparatus |
| CN202972049U (en) * | 2012-12-25 | 2013-06-05 | 浙江工贸职业技术学院 | Automatic rotary type backflow-preventing valve |
| CN107940048A (en) * | 2017-11-22 | 2018-04-20 | 解钟敏 | Self-enclosed gas safety valving |
| CN109538795A (en) * | 2018-08-24 | 2019-03-29 | 严勇 | A kind of float type check valve |
| WO2020093184A1 (en) * | 2018-11-05 | 2020-05-14 | 卢润侨 | Pump control valve |
| CN210240744U (en) * | 2019-03-08 | 2020-04-03 | 河南宇宙流体科技有限公司 | Quick exhaust valve for heating system |
| CN210510410U (en) * | 2019-09-06 | 2020-05-12 | 福建金化科技有限公司 | Rapid pressure relief device for production and processing of film forming additive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117001923A (en) * | 2023-06-27 | 2023-11-07 | 宁波优诺姆机械有限公司 | Exhaust type injection molding machine |
| CN117001923B (en) * | 2023-06-27 | 2024-03-05 | 宁波优诺姆机械有限公司 | Exhaust type injection molding machine |
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| Publication number | Publication date |
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| CN112253825B (en) | 2022-05-17 |
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