CN115183049B - Valve head safety alarm - Google Patents
Valve head safety alarm Download PDFInfo
- Publication number
- CN115183049B CN115183049B CN202210756300.7A CN202210756300A CN115183049B CN 115183049 B CN115183049 B CN 115183049B CN 202210756300 A CN202210756300 A CN 202210756300A CN 115183049 B CN115183049 B CN 115183049B
- Authority
- CN
- China
- Prior art keywords
- valve
- annular
- coaxial
- ring
- air bag
- 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.)
- Active
Links
- 239000012530 fluid Substances 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims description 36
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 12
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/228—Movable sealing bodies
- F16K1/2285—Movable sealing bodies the movement being caused by the flowing medium
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0066—Hydraulic or pneumatic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a valve head safety alarm which comprises a valve body, a fluid channel, a circular ring valve seat, an annular groove, a first annular air bag, an annular pressure sensing device, a valve clack, a valve rod, external threads, a pressurizing structure, a valve cover mounting tube, an operating hole and a singlechip controller, wherein the fluid channel is arranged in the valve body, the inner wall of the fluid channel is provided with the coaxial circular ring valve seat, the middle part of the inner hole wall of the circular ring valve seat is provided with the coaxial annular groove, and the coaxial first annular air bag is arranged in the annular groove. The invention has simple structure and reasonable design, can monitor the tightness between the valve clack and the valve seat in real time after the valve is closed, can discover the leakage in time after the valve is closed, and ensures that the safety of the valve is higher.
Description
[ field of technology ]
The invention relates to the technical field of valve head safety alarms, in particular to the technical field of valve head safety alarms.
[ background Art ]
The valve (valve) is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing countercurrent, stabilizing pressure, diverting or overflow pressure relief and the like. Valves for fluid control systems range from the simplest shut-off valves to the various valves used in extremely complex automatic control systems, which are quite diverse in variety and specification. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.
The tightness between the valve clack and the valve seat is particularly important in the use process, once the tightness between the valve clack and the valve seat is poor, the valve can leak fluid, serious potential safety hazards can be caused when serious, the tightness between the valve clack and the valve seat can not be monitored in real time when the current valve is closed, and the leakage of the valve can not be found in time.
[ invention ]
The invention aims to solve the problems in the prior art, and provides a valve head safety alarm which can monitor the tightness between a valve clack and a valve seat in real time after a valve is closed, and can discover the leakage in time after the valve is closed, so that the safety of the valve is higher.
In order to achieve the aim, the invention provides a valve head safety alarm which comprises a valve body, a fluid channel, a circular valve seat, an annular groove, a first annular air bag, an annular pressure sensing device, a valve clack, a valve rod, external threads, a pressurizing structure, a valve cover mounting tube, an operation hole and a singlechip controller, wherein the fluid channel is arranged in the valve body, the inner wall of the fluid channel is provided with the coaxial circular valve seat, the middle part of the inner wall of the circular valve seat is provided with the coaxial annular groove, the coaxial first annular air bag is arranged in the annular groove, the annular pressure sensing device is arranged between the inner bottom of the annular groove and the first annular air bag, the inner hole of the circular valve seat is provided with the valve clack which is matched, the left end face of the valve clack is provided with the valve rod, the lower end of the valve rod is hinged with the bottom of the inner hole of the fluid channel, the upper end of the valve rod extends out of the valve body, the top of the valve body is provided with the pressurizing structure, the pressurizing structure comprises a sealing tube, an annular blind hole, a second annular air bag, a connecting tube, a compression ring, a hinging tube, a first hand wheel and a locking nut, wherein the sealing tube is arranged at the top end of the outer wall of the valve body, the upper end of a valve rod penetrates through the inner hole of the sealing tube, the upper end surface of the sealing tube is provided with the coaxial annular blind hole, the inner bottom of the annular blind hole is provided with the coaxial second annular air bag, the connecting tube is connected between the second annular air bag and the first annular air bag, the second annular air bag and the first annular air bag are filled with liquid, the upper end surface of the second annular air bag is provided with the coaxial compression ring, the upper end surface of the compression ring is provided with the coaxial hinging tube, the compression ring and the hinging tube are hinged, the hinging shaft is a hinging tube axis, the upper end surface of the hinging tube is provided with the coaxial first hand wheel, the side wall of the valve rod above the sealing tube is provided with external threads, the first hand wheel is screwed on the external threads, the upper end surface of the first hand wheel is provided with the coaxial locking nut is screwed on the external threads, the top end of the outer wall of the valve body is provided with a valve cover, the valve cover installation pipe is arranged on the outer side of the supercharging structure, an operation hole is formed in the pipe wall of the valve cover installation pipe and is adaptive to the first hand wheel and the locking nut, the outer wall of the valve cover installation pipe is provided with a single-chip microcomputer controller, a battery and an alarm are arranged in the single-chip microcomputer controller, and the annular pressure sensing device is adaptive to and connected with the single-chip microcomputer controller.
Preferably, the middle parts of the annular surfaces at the left end and the right end of the first annular air bag are respectively provided with a coaxial sealing fixing ring, and the sealing fixing rings are fixed on the inner wall of the annular groove.
Preferably, the connecting tube communicates with the first annular bladder through the sealing securing ring.
Preferably, the valve cover mounting pipe top is provided with a valve cover, the valve rod extends out of the valve cover top, and the valve rod top is provided with a second hand wheel.
Preferably, a plurality of sealing rings are arranged between the inner hole of the sealing tube and the valve rod.
Preferably, the external thread extends upwards from the upper end surface of the sealing tube to the lower end surface of the valve cover.
Preferably, the first annular bladder is compressed against the annular pressure sensing device inner bore wall.
Preferably, the first annular air bag and the second annular air bag are both made of corrosion-resistant rubber.
The invention has the beneficial effects that: the invention has simple structure and reasonable design, can monitor the tightness between the valve clack and the valve seat in real time after the valve is closed, can discover in time when leakage occurs after the valve is closed, and ensures that the safety of the valve is higher; by arranging the annular groove, the first annular air bag and the annular pressure sensing device, the annular pressure sensing device can monitor the tightness between the valve clack and the annular valve seat in real time, and once fluid leakage occurs between the valve clack and the annular valve seat, the fluid leakage can be found out in time, so that the safety of the valve is improved; through the mode that sets up supercharging structure, can improve the leakproofness and the fault tolerance of first annular gasbag, ensure that the valve is closed the back, first annular gasbag inner wall effectively presses on the valve clack outer annular wall, first annular gasbag outer wall effectively presses on annular pressure sensing device inner wall, simultaneously because the effective powerful pressure of first annular gasbag inner wall can be on the valve clack outer annular wall, first annular gasbag outer wall can be effective powerful pressure on annular pressure sensing device inner wall, then fluid also must possess very big impact force and just can follow the valve clack, leak between the ring disk seat, also can exert great pressure to first annular gasbag when fluid leaks, do benefit to annular pressure sensing device monitor accurately, make annular pressure sensing device can not be because leak fluid pressure between first annular gasbag and annular pressure sensing device, the valve clack is too little and can not monitor, ensure annular pressure sensing device can effective monitoring.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic front view of a valve head safety alarm of the present invention;
FIG. 2 is a schematic front view of a valve head safety alarm of the present invention.
[ detailed description ] of the invention
Referring to fig. 1 and 2, the valve head safety alarm comprises a valve body 1, a fluid channel 11, a circular valve seat 2, an annular groove 21, a first annular air bag 22, an annular pressure sensing device 23, a valve clack 3, a valve rod 61, an external thread 611, a pressurizing structure 4, a valve cover mounting tube 5, an operation hole 51 and a singlechip controller 7, wherein the fluid channel 11 is arranged in the valve body 1, the coaxial circular valve seat 2 is arranged on the inner wall of the fluid channel 11, the coaxial annular groove 21 is arranged in the middle part of the inner hole wall of the circular valve seat 2, the coaxial first annular air bag 22 is arranged in the annular groove 21, the annular pressure sensing device 23 is arranged between the inner bottom of the annular groove 21 and the first annular air bag 22, the inner hole of the circular valve seat 2 is provided with a valve clack 3 which is matched with the valve clack, the left end face of the valve rod 61 is hinged with the bottom of the inner hole of the fluid channel 11, the upper end of the valve rod 61 extends out of the valve body 1, the top end of the valve body 1 is provided with a pressurizing structure 4, the pressurizing structure 4 comprises a sealing tube 40, an annular blind hole 41, a second annular air bag 42, a connecting tube 421, a compression ring 43, a hinging tube 44, a first hand wheel 45 and a lock nut 46, the sealing tube 40 is arranged at the top end of the outer wall of the valve body 1, the upper end of a valve rod 61 penetrates through the inner hole of the sealing tube 40, the upper end surface of the sealing tube 40 is provided with a coaxial annular blind hole 41, the inner bottom of the annular blind hole 41 is provided with a coaxial second annular air bag 42, the connecting tube 421 is connected between the second annular air bag 42 and the first annular air bag 22, liquid is filled in the second annular air bag 42 and the first annular air bag 22, the upper end surface of the second annular air bag 42 is provided with a coaxial compression ring 43, the upper end surface of the compression ring 43 is provided with a coaxial hinging tube 44, the compression ring 43 and the hinging tube 44 are hinged with a hinging tube 44 axis, the upper end surface of the hinging tube 44 is provided with a coaxial first hand wheel 45, the valve rod 61 lateral wall of seal tube 40 top is equipped with external screw thread 611, first hand wheel 45 is twisted on external screw thread 611, first hand wheel 45 up end is equipped with coaxial lock nut 46, lock nut 46 is twisted on external screw thread 611, valve body 1 outer wall top is equipped with valve gap installation tube 5, valve gap installation tube 5 is established in the booster structure 4 outside, be equipped with operating hole 51 on the valve gap installation tube 5 pipe wall, operating hole 51 suits with first hand wheel 45, lock nut 46, valve gap installation tube 5 outer wall is equipped with singlechip controller 7, be equipped with battery 71 in the singlechip controller 7, alarm 72, annular pressure sensing device 23 and singlechip controller 7 adaptation link to each other.
Wherein, the middle parts of the annular surfaces at the left end and the right end of the first annular air bag 22 are respectively provided with a coaxial sealing fixing ring 221, and the sealing fixing rings 221 are fixed on the inner wall of the annular groove 21.
Wherein the connection pipe 421 communicates with the first annular air bag 22 through the sealing fixing ring 221.
Wherein, valve gap 6 is equipped with on valve gap installation tube 5 top, and valve rod 61 stretches out from valve gap 6 top, and valve rod 61 top is equipped with second hand wheel 62.
Wherein, a plurality of sealing rings 401 are arranged between the inner hole of the sealing tube 40 and the valve rod 61.
Wherein the external thread 611 extends upward from the upper end surface of the sealing tube 40 to the lower end surface of the valve cap 6.
Wherein the first annular air bag 22 is pressed against the inner hole wall of the annular pressure sensing device 23.
Wherein the first annular bladder 22 and the second annular bladder 42 are each made of a corrosion resistant rubber.
The working process of the invention comprises the following steps:
the valve head safety alarm is in the working process;
a valve closing process;
the first step: the valve rod 61 is rotated through the second hand wheel 62, so that the valve clack 3 is adaptively clamped in the inner hole of the circular valve seat 2 after rotating by a proper angle;
and a second step of: rotating the first hand wheel 45 through the operation hole 51 to enable the first hand wheel 45 to rotate and move downwards, pressing the second annular air bag 42 downwards through the pressing ring 43, enabling fluid in the second annular air bag 42 to enter the first annular air bag 22, expanding the first annular air bag 22, enabling the inner hole wall of the first annular air bag 22 to press the outer annular wall of the valve clack 3, enabling the outer hole wall of the first annular air bag 22 to press the inner hole wall of the annular pressure sensing device 23, and enabling pressure data detected by the annular pressure sensing device 23 to be gradually increased due to expansion of the first annular air bag 22;
and a third step of: when the pressure data detected by the annular pressure sensing device 23 increases to a certain value, the rotation of the first hand wheel 45 is stopped, and at this time, the pressure data detected by the annular pressure sensing device 23 tends to be stable.
Judging whether the valve is leaked after being closed;
if the valve is not leaked, the pressure data detected by the annular pressure sensing device 23 can be stable and unchanged;
if the valve leaks, fluid leaks out from the valve clack 3 and the inner hole of the annular valve seat 2, at this time, the fluid can squeeze the first annular air bag 22 to the inner hole wall of the annular pressure sensing device 23, the pressure data detected by the annular pressure sensing device 23 can be increased, and at this time, the singlechip controller 7 controls the alarm 72 to give an alarm.
The invention has simple structure and reasonable design, can monitor the tightness between the valve clack and the valve seat in real time after the valve is closed, can discover in time when leakage occurs after the valve is closed, and ensures that the safety of the valve is higher; by arranging the annular groove 21, the first annular air bag 22 and the annular pressure sensing device 23, the annular pressure sensing device 23 can monitor the tightness between the valve clack 3 and the annular valve seat 2 in real time, and once the fluid leakage occurs between the valve clack 3 and the annular valve seat 2, the fluid leakage can be found out in time, so that the safety of the valve is improved; through the mode that sets up pressurization structure 4, can improve the leakproofness and the fault-tolerant of first annular gasbag 22, ensure that the valve is closed the back, first annular gasbag 22 inner wall effectively presses on the valve clack 3 outer annular wall, first annular gasbag 22 outer wall effectively presses on annular pressure sensing device 23 inner wall, simultaneously because first annular gasbag 22 inner wall can effectively powerful pressure on valve clack 3 outer annular wall, first annular gasbag 22 outer wall can effectively powerful pressure on annular pressure sensing device 23 inner wall, then fluid also must possess very big impact force just can leak from valve clack 3, annular disk seat 2, also can apply great pressure to first annular gasbag 22 during the fluid leakage, do benefit to annular pressure sensing device 23 and monitor accurately, make annular pressure sensing device 23 can not monitor because the leakage fluid pressure between first annular gasbag 22 and annular pressure sensing device 23, valve clack 3 is too little, ensure that annular pressure sensing device 23 can effectively monitor.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (8)
1. A valve head safety alarm which is characterized in that: including valve body (1), fluid channel (11), ring disk seat (2), ring channel (21), first annular gasbag (22), annular pressure sensing device (23), valve clack (3), valve rod (61), external screw thread (611), booster structure (4), valve gap installation tube (5), operating hole (51), singlechip controller (7), be equipped with fluid channel (11) in valve body (1), fluid channel (11) inner wall is equipped with coaxial ring disk seat (2), ring disk seat (2) hole wall middle part is equipped with coaxial ring channel (21), be equipped with coaxial first annular gasbag (22) in ring channel (21), be equipped with annular pressure sensing device (23) between inner bottom of ring channel (21) and first annular gasbag (22), ring disk seat (2) hole is equipped with adaptive valve clack (3), valve rod (61) are equipped with to valve rod (3) on the left end face, valve rod (61) lower extreme and fluid channel (11) hole bottom are articulated, valve body (1) are stretched out to valve body (1) top, booster structure (4) are equipped with on valve body (1), booster structure (4) contain sealed tube (40), annular blind hole (41), second annular gasbag (42), annular gasbag (42) are equipped with in ring channel (21) The valve body is characterized in that a compression ring (43), a hinging pipe (44), a first hand wheel (45) and a locking nut (46) are arranged at the top end of the outer wall of the valve body (1), the upper end of a valve rod (61) penetrates through the inner hole of the sealing pipe (40), a coaxial annular blind hole (41) is arranged on the upper end face of the sealing pipe (40), a coaxial second annular air bag (42) is arranged at the inner bottom of the annular blind hole (41), a connecting pipe (421) is connected between the second annular air bag (42) and the first annular air bag (22), liquid is filled in the second annular air bag (42) and the first annular air bag (22), the upper end face of the second annular air bag (42) is provided with a coaxial compression ring (43), the upper end face of the compression ring (43) is provided with a coaxial hinging pipe (44), the compression ring (43) and the hinging pipe (44) is hinged between the hinging pipes, the axes of the hinging pipes (44), the upper end face of the hinging pipe (44) is provided with a coaxial first hand wheel (45), an external thread (611) is arranged on the side wall of the valve rod (61) above the sealing pipe (40), the first hand wheel (45) is screwed on the external thread (611), the coaxial hand wheel (45) is provided with the coaxial compression ring, the coaxial ring is filled with the coaxial ring (44) and the coaxial ring is filled with the coaxial ring, the sealing ring, and the sealing nut is filled with the coaxial ring and the sealing ring, and the sealing nut is filled with the sealing ring and the sealing ring. The valve gap installation pipe (5) is established in supercharging structure (4) outside, is equipped with operation hole (51) on valve gap installation pipe (5) pipe wall, and operation hole (51) are suited with first hand wheel (45), lock nut (46), and valve gap installation pipe (5) outer wall is equipped with singlechip controller (7), is equipped with battery (71), alarm (72) in singlechip controller (7), and annular pressure sensing device (23) are suited with singlechip controller (7) and are linked to each other.
2. A valve head safety alarm as defined in claim 1, wherein: the middle parts of the annular surfaces at the left end and the right end of the first annular air bag (22) are respectively provided with a coaxial sealing fixing ring (221), and the sealing fixing rings (221) are fixed on the inner wall of the annular groove (21).
3. A valve head safety alarm as defined in claim 1, wherein: the connecting pipe (421) passes through the sealing fixing ring (221) to be communicated with the first annular air bag (22).
4. A valve head safety alarm as defined in claim 1, wherein: the valve cover mounting pipe (5) top is equipped with valve gap (6), and valve rod (61) stretches out from valve gap (6) top, and valve rod (61) top is equipped with second hand wheel (62).
5. A valve head safety alarm as defined in claim 1, wherein: a plurality of sealing rings (401) are arranged between the inner hole of the sealing tube (40) and the valve rod (61).
6. A valve head safety alarm as defined in claim 1, wherein: the external thread (611) extends upwards from the upper end face of the sealing tube (40) to the lower end face of the valve cover (6).
7. A valve head safety alarm as defined in claim 1, wherein: the first annular air bag (22) is pressed on the inner hole wall of the annular pressure sensing device (23).
8. A valve head safety alarm as defined in claim 1, wherein: the first annular air bag (22) and the second annular air bag (42) are made of corrosion-resistant rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210756300.7A CN115183049B (en) | 2022-06-29 | 2022-06-29 | Valve head safety alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210756300.7A CN115183049B (en) | 2022-06-29 | 2022-06-29 | Valve head safety alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115183049A CN115183049A (en) | 2022-10-14 |
| CN115183049B true CN115183049B (en) | 2024-01-05 |
Family
ID=83516099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210756300.7A Active CN115183049B (en) | 2022-06-29 | 2022-06-29 | Valve head safety alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115183049B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565458A (en) * | 2014-12-15 | 2015-04-29 | 湖北力拓阀业有限公司 | Spherical non-rising-stem stop check valve |
| CN208750019U (en) * | 2018-07-17 | 2019-04-16 | 湖北汇金环保装备有限公司 | A kind of valve core device of effusion recovery channel valve |
| CN109869220A (en) * | 2019-03-28 | 2019-06-11 | 上海轩度汽车科技有限公司 | A kind of receiver assembly with leak detection |
| CN113357439A (en) * | 2021-05-31 | 2021-09-07 | 闻静 | Can reveal monitoring alarm pipeline interface protection gallows |
| CN215645498U (en) * | 2021-09-03 | 2022-01-25 | 山东辉达电力有限公司 | Flame-proof switch equipment |
| CN215981113U (en) * | 2021-10-11 | 2022-03-08 | 江苏明汇阀门有限公司 | Bellows stop valve with leak protection detects function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005073605A1 (en) * | 2004-01-29 | 2005-08-11 | Asahi Organic Chemicals Industry Co., Ltd. | Valve |
| US20130320252A1 (en) * | 2011-02-17 | 2013-12-05 | Egc Enterprises, Inc. | Control valve assembly |
-
2022
- 2022-06-29 CN CN202210756300.7A patent/CN115183049B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565458A (en) * | 2014-12-15 | 2015-04-29 | 湖北力拓阀业有限公司 | Spherical non-rising-stem stop check valve |
| CN208750019U (en) * | 2018-07-17 | 2019-04-16 | 湖北汇金环保装备有限公司 | A kind of valve core device of effusion recovery channel valve |
| CN109869220A (en) * | 2019-03-28 | 2019-06-11 | 上海轩度汽车科技有限公司 | A kind of receiver assembly with leak detection |
| CN113357439A (en) * | 2021-05-31 | 2021-09-07 | 闻静 | Can reveal monitoring alarm pipeline interface protection gallows |
| CN215645498U (en) * | 2021-09-03 | 2022-01-25 | 山东辉达电力有限公司 | Flame-proof switch equipment |
| CN215981113U (en) * | 2021-10-11 | 2022-03-08 | 江苏明汇阀门有限公司 | Bellows stop valve with leak protection detects function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115183049A (en) | 2022-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211117614U (en) | Hard seal flange stop valve | |
| CN210372220U (en) | Static sealing structure between valve and pipeline | |
| CN115183049B (en) | Valve head safety alarm | |
| CN208476526U (en) | A kind of value pressure test tooling | |
| CN217714134U (en) | Online water seal gate valve replacing device | |
| CN217030030U (en) | Slag conveying pipeline valve capable of preventing inner leakage and outer leakage | |
| CN114922986A (en) | High-temperature and high-pressure resistant welding type stop valve | |
| CN214502875U (en) | Performance test system for valve production | |
| CN204459240U (en) | A kind of instrument root valve | |
| CN220416304U (en) | Novel combination valve of ball valve and pressure reducing valve | |
| CN219639449U (en) | Anti-scouring stop valve with double sealing effect | |
| CN213121025U (en) | Pipeline under pressure welding department detection device | |
| CN219263239U (en) | All-metal hard-seal ball valve with five eccentric structures | |
| CN213451705U (en) | Combined stainless steel valve | |
| CN215928454U (en) | Valve assembly and engine assembly | |
| CN220248956U (en) | Butterfly valve with good sealing effect | |
| CN214579249U (en) | High temperature and high pressure resistant stop valve | |
| CN211571852U (en) | Fire hydrant emergency valve | |
| CN220204735U (en) | Valve with leak-proof function | |
| CN208919449U (en) | A kind of Y-shaped cut-off valve | |
| CN220910592U (en) | Quick mounting structure of stop valve | |
| CN215763346U (en) | Water-saving leakproof valve faucet | |
| CN212429757U (en) | Industrial fireproof stop valve | |
| CN213512117U (en) | Balance structure of flat stop valve | |
| CN214305480U (en) | Self-sealing valve cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xia Xinmei Inventor after: Zhou Kun Inventor after: Gan Yujia Inventor after: Wang Xiaoxue Inventor after: Zhang Fei Inventor after: Zhang Chunyan Inventor before: Zhou Kun Inventor before: Gan Yujia Inventor before: Wang Xiaoxue Inventor before: Zhang Fei Inventor before: Zhang Chunyan |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |