CN111577923A - Gas anti-theft ball valve - Google Patents
Gas anti-theft ball valve Download PDFInfo
- Publication number
- CN111577923A CN111577923A CN202010418688.0A CN202010418688A CN111577923A CN 111577923 A CN111577923 A CN 111577923A CN 202010418688 A CN202010418688 A CN 202010418688A CN 111577923 A CN111577923 A CN 111577923A
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- valve body
- hole
- password
- 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.)
- Granted
Links
Images
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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
-
- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
-
- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/08—Means to prevent accidental or unauthorised actuation requiring setting according to a code, e.g. permutation locks
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention discloses a gas anti-theft ball valve, which comprises a valve body, wherein a valve cavity is arranged in the valve body, the valve body is provided with a left channel, the right end of the valve body is fixedly provided with a right valve cover, the right channel is arranged on the right valve cover, a valve rod is rotationally connected in the valve body, a ball core is rotationally connected in the valve cavity, a communication hole is formed in the ball core along the direction vertical to the valve rod, an upper cavity and a lower cavity are formed between the valve rod and the valve body, incompressible fluid media are filled in the upper cavity and the lower cavity, and a password locking mechanism for controlling the channels of the upper cavity and the lower cavity is arranged in the valve; the gas anti-theft ball valve is simple in structure and more reliable in anti-theft structure.
Description
Technical Field
The invention belongs to the technical field of pipeline valves, and particularly relates to a gas anti-theft ball valve.
Background
The ball valve is a common valve used in pipelines of chemical industry, gas transportation, urban gas supply and tap water supply, and has the advantages of simple structure, reliable opening and closing and long service life. Therefore, it is widely used in the above fields. The common structure ball valve can be directly controlled by a user according to requirements, has control freedom and flexibility for direct users, but loses control right for management units of air supply and water supply, and the loss of the control right can cause potential safety hazards of tap water and gas leakage or risks of being stolen after the valve is operated by mistake or is operated without permission when front-end engineering construction is not finished or the conditions of air supply and water supply are not met. The existing valve is mainly opened without authorization by designing a valve rod pulling interface into a special interface form, and a special spanner or a special hand wheel is not arranged on the valve and only can be opened by a special person by using the special spanner or the special hand wheel. The special tool is bound to adopt a clamping structure which is convenient to connect and take out, the connection precision is low, the firmness is poor, and the special tool is easy to slip after being used for a period of time, so that the opening and closing effect is influenced; and the structure size is large, and the carrying is inconvenient. Although some ball valves which are provided with a locking mechanism and are locked and unlocked through a special key exist in the market at present, the ball valves have the defects of either complicated structure or inconvenient operation. For example, chinese patent publication No. CN204312756U, published as 2012 for 4.4.4, invents a utility model named "ball valve", and discloses a ball valve, which is provided with a locking screw between a handle and a valve body, and is unlocked and locked by a special key, and the key has a small structural size, is convenient to carry, and is labor-saving in locking and unlocking operations. However, the valve can be unlocked only after the locking screw is detached, and the defects of complex operation and easy loss of the screw exist.
Disclosure of Invention
The invention aims to provide a gas anti-theft ball valve which is simple in structure and more reliable in anti-theft structure.
In order to achieve the purpose, the invention provides the following technical scheme:
a fuel gas anti-theft ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a left passage communicated with the valve cavity is arranged on the left side of the valve body, a right valve cover is fixedly installed at the opening of the right end of the valve cavity of the valve body, a right passage communicated with the valve cavity is arranged on the right valve cover, a valve rod with the lower end extending into the valve cavity is connected in the valve body in a rotating mode, a ball core is connected in the valve cavity in a rotating mode, and the ball core is used for controlling the connection and disconnection of the left; a communicating hole is arranged in the ball core, when the ball valve is opened, the communicating hole and the left channel are in the coaxial position, and when the ball valve is closed, the communicating hole and the left channel are in the vertical position; the upper end of the ball core is provided with a square connecting hole, the lower end of the valve rod is provided with a square connecting block matched with the connecting hole, the valve rod can slide up and down relative to the valve body, when the valve rod slides to the lower end, the connecting block extends into the connecting hole, the valve rod can be driven to rotate by rotating the valve rod, when the valve rod slides to the upper end, the connecting block is separated from the connecting hole, and the valve rod cannot be driven to rotate by rotating the valve rod; the valve rod with be formed with last cavity and lower cavity between the valve body, it is full of incompressible fluid medium in last cavity and the lower cavity, be equipped with in the valve body and be used for control go up the password locking mechanical system of cavity and lower cavity break-make, when password locking mechanical system is in the lock state, cavity and lower cavity disconnection are gone up in the password locking mechanical system control, the valve rod can not slide from top to bottom in the valve body, when password locking mechanical system is in the state of unblanking, cavity and lower cavity intercommunication are gone up in the password locking mechanical system control, the valve rod can slide from top to bottom in the valve body.
Further, the valve rod includes drive section, convex shoulder section, linkage segment and connecting block from top to bottom, the drive section stretches out the top of valve body, the drive section with the diameter of linkage segment equals, the diameter of convex shoulder section is greater than the drive end with the diameter of linkage segment, the up end of convex shoulder section with form between the valve body go up the cavity, the lower terminal surface of convex shoulder section with form between the valve body down the cavity.
Furthermore, an installation cavity is arranged in the valve body, the password locking mechanism is arranged in the installation cavity and comprises a lock cover, a lock cylinder, a sliding sleeve and three password discs, the lock cover is fixedly arranged in the installation cavity, and a first sliding groove is axially formed in the lock cover; the sliding sleeve is fixedly arranged in the mounting cavity, and a through sliding sleeve through hole is formed in the sliding sleeve; the lock core is arranged in the mounting cavity in a left-right sliding mode, a first convex column matched with the first sliding groove is arranged at the left end of the lock core, the left end of the lock core penetrates through the lock cover and then extends out of the left end of the valve body, the right end of the lock core penetrates through a through hole of the sliding sleeve and then extends out of the right end of the sliding sleeve, and three second convex columns are arranged in the middle of the lock core from left to right; the three password disks are sleeved in the middle of the lock cylinder and can rotate around the lock cylinder, three avoiding grooves for the upper ends of the three password disks to extend out are formed in the valve body, and three second sliding grooves matched with the three second convex columns one by one are formed in the three password disks; when the code locking mechanism is in an unlocking state, the three second convex columns are opposite to the three second sliding grooves, and the three second convex columns can freely slide in the three second sliding grooves; when the code locking mechanism is in a locking state, at least one second sliding groove on one code disc is staggered with the second convex column, and the lock cylinder cannot slide left and right along the mounting cavity.
Furthermore, the outer circumference of the cipher disk is marked with scale values.
Furthermore, a first communicating hole communicated with the upper chamber and a second communicating hole communicated with the lower chamber are formed in the valve body, a communicating cavity used for communicating the first communicating hole with the second communicating hole is formed in the bottom of the installation cavity in the valve body, the lock cylinder can control the connection and disconnection of the first communicating hole and the second communicating hole, when the password locking mechanism is in a locking state, the right end of the lock cylinder closes the second communicating hole, and the first communicating hole is disconnected with the second communicating hole; when the password locking mechanism is in an unlocking state, the lock cylinder moves leftwards to open the second communication hole, so that the first communication hole is communicated with the second communication hole through the communication cavity.
Further, a handle is fixedly mounted at the upper end of the valve rod.
Advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages: when the gas anti-theft ball valve is in a locking state, the ball valve is closed, the password locking mechanism disconnects the upper cavity and the lower cavity, the valve rod cannot move downwards, the connecting block is separated from the connecting hole at the moment, and the rotating valve rod cannot drive the ball core to rotate; when a correct password is input, and the password locking mechanism is in an unlocking state, the password locking mechanism controls the upper cavity and the lower cavity to be communicated, the valve rod can slide up and down in the valve body, the connecting block can be connected with the connecting hole at the moment, and the rotating valve rod can drive the ball core to rotate, so that the ball valve is unlocked; the gas anti-theft ball valve controls whether the valve rod is connected with the ball core or not through the password locking mechanism to realize locking or unlocking of the ball core, so that the anti-theft structure of the gas anti-theft ball valve is simpler and more reliable.
Drawings
FIG. 1 is a cross-sectional view of the present invention with the core in the closed position and in the locked position;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a cross-sectional view of the present invention with the core in the closed position and in the unlocked position;
fig. 4 is an enlarged view at B in fig. 3.
Detailed Description
Referring to fig. 1-4, the gas anti-theft ball valve comprises a valve body 1, a valve cavity 101 is arranged in the valve body 1, a left passage 102 communicated with the valve cavity 101 is arranged on the left side of the valve body 1, a right valve cover 3 is fixedly arranged at the right end opening of the valve cavity 101 of the valve body 1, a right passage 31 communicated with the valve cavity 101 is arranged on the right valve cover 3, a valve rod 4 with the lower end extending into the valve cavity 101 is rotatably connected to the valve body 1, and a handle 8 is fixedly arranged at the upper end of the valve rod 4. A ball core 2 is rotatably connected in the valve cavity 101, and the ball core 2 is used for controlling the connection and disconnection of the left channel 102 and the right channel 31; a communication hole 22 is arranged in the ball core 2, when the ball valve is opened, the communication hole 22 and the left channel 102 are in a coaxial position, and when the ball valve is closed, the communication hole 22 and the left channel 102 are in a vertical position.
The upper end of ball core 2 is equipped with square connecting hole 21, the lower extreme of valve rod 4 be equipped with connecting hole 21 matched with square connecting block 431, valve rod 4 can for valve body 1 slides from top to bottom, works as when valve rod 4 slides to the lower extreme, connecting block 431 stretches into in the connecting hole 21, rotates valve rod 4 can drive ball core 2 rotates, works as when valve rod 4 slides to the upper end, connecting block 431 breaks away from connecting hole 21 rotates valve rod 4 can not drive ball core 2 rotates. Valve rod 4 with be formed with cavity 1a and lower cavity 1b between the valve body 1, it is full of incompressible fluid medium to go up cavity 1a and lower cavity 1b, be equipped with in the valve body 1 and be used for control go up the password locking mechanical system of cavity 1a and lower cavity 1b break-make, when password locking mechanical system is in lock state, cavity 1a and lower cavity 1b disconnection in the password locking mechanical system control, valve rod 4 can not slide from top to bottom in valve body 1, when password locking mechanical system is in the state of unblanking, cavity and lower cavity intercommunication in the password locking mechanical system control, valve rod 4 can slide from top to bottom in the valve body.
The valve rod 4 comprises a driving section 41, a shoulder section 42, a connecting section 43 and a connecting block 431 from top to bottom, the driving section 41 extends out of the upper portion of the valve body 1, the driving section 41 and the connecting section 43 are equal in diameter, the shoulder section 42 is larger than the driving end 41 and the connecting section 43 in diameter, the upper end face of the shoulder section 42 and the valve body 1 form an upper cavity 1a, and the lower end face of the shoulder section 42 and the valve body 1 form a lower cavity 1 b.
The valve body 1 is provided with an installation cavity, the password locking mechanism is arranged in the installation cavity and comprises a lock cover 6, a lock cylinder 5, a sliding sleeve 9 and three password discs 7, the lock cover 6 is fixedly arranged in the installation cavity, and the lock cover 6 is axially provided with a first sliding groove 61; the sliding sleeve 9 is fixedly arranged in the mounting cavity, and a through sliding sleeve through hole is formed in the sliding sleeve 9; the lock cylinder 5 is arranged in the mounting cavity in a left-right sliding manner, a first convex column 52 matched with the first sliding groove 61 is arranged at the left end of the lock cylinder 5, the left end of the lock cylinder 5 penetrates through the lock cover 6 and then extends out to the left end of the valve body 1, the right end of the lock cylinder 5 penetrates through a sliding sleeve through hole and then extends out to the right end of the sliding sleeve 9, and three second convex columns 51 are arranged in the middle of the lock cylinder 5 from left to right; the three password disk sleeves 7 are connected to the middle of the lock cylinder 5 and can rotate around the lock cylinder 5, three avoiding grooves 105 for the upper ends of the three password disks 7 to extend out are formed in the valve body 1, three second sliding grooves 71 matched with the three second convex columns 51 one by one are formed in the three password disks 7, and scale values are marked on the outer circumference of each password disk 7. When the code locking mechanism is in the unlocking state, the three second convex columns 51 are opposite to the three second sliding grooves 71, and the three second convex columns 51 can freely slide in the three second sliding grooves 71; when the code locking mechanism is in a locking state, at least one second sliding groove 71 on the code disc 7 is staggered with the second convex column 51, and the lock cylinder 5 cannot slide left and right along the installation cavity.
A first communication hole 103 communicated with the upper chamber 1a and a second communication hole 104 communicated with the lower chamber 1b are formed in the valve body 1, a communication cavity for communicating the first communication hole 103 with the second communication hole 104 is formed in the bottom of the installation cavity in the valve body 1, the lock cylinder 5 can control the connection and disconnection of the first communication hole 103 and the second communication hole 104, when the password locking mechanism is in a locked state, the second communication hole 104 is closed by the right end of the lock cylinder 5, and the first communication hole 103 is disconnected from the second communication hole 104; when the code locking mechanism is in an unlocked state, the lock cylinder 5 moves leftwards to open the second communication hole 104, so that the first communication hole 103 is communicated with the second communication hole 104 through the communication cavity.
When the three password disks 7 are all rotated to the correct password position, the ball valve is in an unlocking state, the three second convex columns 51 are opposite to the three second sliding grooves 71, at the moment, the three second convex columns 51 can slide along the three second sliding grooves 71, the lock cylinder 5 is controlled to move leftwards to open the second communication holes 104, the upper cavity 1a can be communicated with the lower cavity 1b, then the handle 8 is pressed downwards to drive the valve rod 4 to move downwards, fluid media in the lower cavity 1b flow into the upper cavity after passing through the second communication holes 104, the communication cavities and the first communication hole 103, when the connecting block 431 extends into the connecting hole 21 due to the downward movement of the valve rod 4, the handle 8 is rotated to drive the ball core 2 to rotate, the ball valve is opened, and the opening and closing of the ball core 2 can be adjusted at will through the handle 8.
When the ball valve needs to be locked, the ball core 2 is firstly rotated to a closed position, then the handle 8 is lifted upwards to drive the connecting block 431 to be separated from the connecting hole 21, then the lock core 5 is pushed to move rightwards, the lock core 5 seals the second communicating hole 104, and then 3 password discs 7 are disordered, at the moment, because the upper cavity 1a is isolated from the lower cavity 1b, the lower cavity 1b forms a closed space, and when the handle 8 is pressed downwards, because incompressible fluid media in the lower cavity 1b cannot be discharged, the valve rod 4 cannot move downwards, and then the connecting block cannot be combined with the connecting hole 21, at the moment, the rotating handle 8 only enables the handle 8 to idle and drive the ball core 2 to rotate, and therefore the locking of the gas anti-theft ball valve is realized.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A fuel gas anti-theft ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a left passage communicated with the valve cavity is arranged on the left side of the valve body, a right valve cover is fixedly installed at the opening of the right end of the valve cavity of the valve body, a right passage communicated with the valve cavity is arranged on the right valve cover, a valve rod with the lower end extending into the valve cavity is connected in the valve body in a rotating mode, a ball core is connected in the valve cavity in a rotating mode, and the ball core is used for controlling the connection and disconnection of the left; a communicating hole is arranged in the ball core, when the ball valve is opened, the communicating hole and the left channel are in the coaxial position, and when the ball valve is closed, the communicating hole and the left channel are in the vertical position; it is characterized in that the preparation method is characterized in that,
the upper end of the ball core is provided with a square connecting hole, the lower end of the valve rod is provided with a square connecting block matched with the connecting hole, the valve rod can slide up and down relative to the valve body, when the valve rod slides to the lower end, the connecting block extends into the connecting hole, the valve rod can be driven to rotate by rotating the valve rod, when the valve rod slides to the upper end, the connecting block is separated from the connecting hole, and the valve rod cannot be driven to rotate by rotating the valve rod; the valve rod with be formed with last cavity and lower cavity between the valve body, it is full of incompressible fluid medium in last cavity and the lower cavity, be equipped with in the valve body and be used for control go up the password locking mechanical system of cavity and lower cavity break-make, when password locking mechanical system is in the lock state, cavity and lower cavity disconnection are gone up in the password locking mechanical system control, the valve rod can not slide from top to bottom in the valve body, when password locking mechanical system is in the state of unblanking, cavity and lower cavity intercommunication are gone up in the password locking mechanical system control, the valve rod can slide from top to bottom in the valve body.
2. The gas anti-theft ball valve according to claim 1, wherein the valve rod comprises a driving section, a shoulder section, a connecting section and a connecting block from top to bottom, the driving section extends out of the valve body, the driving section and the connecting section have the same diameter, the shoulder section has a diameter larger than the driving section and the connecting section, the upper cavity is formed between the upper end surface of the shoulder section and the valve body, and the lower cavity is formed between the lower end surface of the shoulder section and the valve body.
3. The gas anti-theft ball valve according to claim 2, wherein a mounting cavity is provided in the valve body, the password locking mechanism is provided in the mounting cavity, the password locking mechanism comprises a lock cover, a lock cylinder, a sliding sleeve and three password disks, the lock cover is fixedly mounted in the mounting cavity, and a first sliding groove is provided in the lock cover along the axial direction; the sliding sleeve is fixedly arranged in the mounting cavity, and a through sliding sleeve through hole is formed in the sliding sleeve; the lock core is arranged in the mounting cavity in a left-right sliding mode, a first convex column matched with the first sliding groove is arranged at the left end of the lock core, the left end of the lock core penetrates through the lock cover and then extends out of the left end of the valve body, the right end of the lock core penetrates through a through hole of the sliding sleeve and then extends out of the right end of the sliding sleeve, and three second convex columns are arranged in the middle of the lock core from left to right; the three password disks are sleeved in the middle of the lock cylinder and can rotate around the lock cylinder, three avoiding grooves for the upper ends of the three password disks to extend out are formed in the valve body, and three second sliding grooves matched with the three second convex columns one by one are formed in the three password disks; when the code locking mechanism is in an unlocking state, the three second convex columns are opposite to the three second sliding grooves, and the three second convex columns can freely slide in the three second sliding grooves; when the code locking mechanism is in a locking state, at least one second sliding groove on one code disc is staggered with the second convex column, and the lock cylinder cannot slide left and right along the mounting cavity.
4. The gas anti-theft ball valve according to claim 3, wherein a scale value is marked on the outer circumference of the code disc.
5. The gas anti-theft ball valve according to claim 3, wherein a first communicating hole communicated with the upper chamber and a second communicating hole communicated with the lower chamber are arranged in the valve body, a communicating cavity for communicating the first communicating hole and the second communicating hole is arranged at the bottom of the mounting cavity in the valve body, the lock cylinder can control the connection and disconnection of the first communicating hole and the second communicating hole, when the password locking mechanism is in a locking state, the right end of the lock cylinder closes the second communicating hole, and the first communicating hole is disconnected with the second communicating hole; when the password locking mechanism is in an unlocking state, the lock cylinder moves leftwards to open the second communication hole, so that the first communication hole is communicated with the second communication hole through the communication cavity.
6. The gas anti-theft ball valve according to claim 1, wherein a handle is fixedly mounted on an upper end of the valve stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010418688.0A CN111577923B (en) | 2020-05-18 | 2020-05-18 | Gas anti-theft ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010418688.0A CN111577923B (en) | 2020-05-18 | 2020-05-18 | Gas anti-theft ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111577923A true CN111577923A (en) | 2020-08-25 |
| CN111577923B CN111577923B (en) | 2021-07-30 |
Family
ID=72126787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010418688.0A Active CN111577923B (en) | 2020-05-18 | 2020-05-18 | Gas anti-theft ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111577923B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524323A (en) * | 2020-12-12 | 2021-03-19 | 浙江巨运管业有限公司 | Electromagnetic gas valve locked manually |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100504A (en) * | 1994-08-01 | 1995-03-22 | 成都铁路局科学技术研究所 | Pressure program-controlled anti-closing valve |
| JP2001280529A (en) * | 2000-03-31 | 2001-10-10 | Chuo Motor Wheel Co Ltd | Valve device having residual pressure release function |
| CN102252129A (en) * | 2011-07-01 | 2011-11-23 | 初春 | Device for locking and unlocking ball valve through cipher |
| CN203906992U (en) * | 2014-02-13 | 2014-10-29 | 董长胜 | Handle-free anti-theft water faucet |
| CN207406901U (en) * | 2017-11-14 | 2018-05-25 | 哈尔滨电机厂有限责任公司 | The ball valve position hydraulic pressure locking device being installed on pivoted arm |
-
2020
- 2020-05-18 CN CN202010418688.0A patent/CN111577923B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100504A (en) * | 1994-08-01 | 1995-03-22 | 成都铁路局科学技术研究所 | Pressure program-controlled anti-closing valve |
| JP2001280529A (en) * | 2000-03-31 | 2001-10-10 | Chuo Motor Wheel Co Ltd | Valve device having residual pressure release function |
| CN102252129A (en) * | 2011-07-01 | 2011-11-23 | 初春 | Device for locking and unlocking ball valve through cipher |
| CN203906992U (en) * | 2014-02-13 | 2014-10-29 | 董长胜 | Handle-free anti-theft water faucet |
| CN207406901U (en) * | 2017-11-14 | 2018-05-25 | 哈尔滨电机厂有限责任公司 | The ball valve position hydraulic pressure locking device being installed on pivoted arm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524323A (en) * | 2020-12-12 | 2021-03-19 | 浙江巨运管业有限公司 | Electromagnetic gas valve locked manually |
| CN112524323B (en) * | 2020-12-12 | 2023-06-09 | 广东三竺新能源有限公司 | Manual-locking electromagnetic gas valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111577923B (en) | 2021-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111577923B (en) | Gas anti-theft ball valve | |
| CA2617417A1 (en) | Cable connection assembly | |
| CN201074502Y (en) | Dual-valve plate type subsurface safety valve | |
| CN105350912B (en) | Downhole tool for reducing friction resistance of sliding directional drilling | |
| CN111473154B (en) | Butterfly valve | |
| CN206860926U (en) | A kind of ball valve | |
| CN111550573A (en) | Novel ball valve | |
| CN111536301A (en) | Ball valve | |
| CN209924961U (en) | Underground manual blowout prevention switch valve | |
| CN2916293Y (en) | Valve with coded lock | |
| CN204609834U (en) | A kind of ceramics plate type leak-resistance valve | |
| CN202597877U (en) | Locking stop valve | |
| CN202338657U (en) | Quick-close type double-pin plug valve | |
| CN205781300U (en) | There is the lock controlled ball valve of Anti-theft-dismounting joint | |
| CN212407681U (en) | Multipurpose pressure-cutting plug valve | |
| CN202215778U (en) | Magnetic locking ball valve for filter | |
| CN111577924A (en) | Ball valve with prevent arbitrary regulatory function | |
| CN112682531B (en) | Three-position four-way electromagnetic reversing valve | |
| CN110735963A (en) | magnetic control switch gate valve and valve opening and closing tool for magnetic control switch gate valve | |
| CN103307328B (en) | Tap capable of being automatically turned off in absence of water | |
| CN202215837U (en) | Magnetic locking ball valve | |
| CN215410418U (en) | Connecting structure of valve body and valve cover | |
| CN111536255A (en) | High-pressure ball valve | |
| CN219570927U (en) | Cutting ferrule ball valve convenient to handle dismouting | |
| CN215761571U (en) | Unlimited secondary bypass valve device |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210709 Address after: 317600 Yuhuan electromechanical Industrial Park, Taizhou City, Zhejiang Province Applicant after: TAIZHOU AIDI XISHENGDA TUBE Co.,Ltd. Address before: 315000 No. 510 Chuangyuan Road, Ningbo National High-tech Zone, Zhejiang Province Applicant before: Shao Likun |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |