CN211715848U - Safety valve capable of preventing valve core and valve seat from being abraded - Google Patents
Safety valve capable of preventing valve core and valve seat from being abraded Download PDFInfo
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- CN211715848U CN211715848U CN201921414950.3U CN201921414950U CN211715848U CN 211715848 U CN211715848 U CN 211715848U CN 201921414950 U CN201921414950 U CN 201921414950U CN 211715848 U CN211715848 U CN 211715848U
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Abstract
The utility model relates to the technical field of valve equipment, and a can prevent relief valve of case disk seat wearing and tearing is disclosed, including valve body, control valve pipe and safety guard, the first flange of top fixedly connected with of valve body, the bottom fixedly connected with second flange of control valve pipe pass through screw fixed connection between first flange and the second flange, the top fixedly connected with third flange of control valve pipe, the bottom fixedly connected with fourth flange of safety guard. This can prevent relief valve of case disk seat wearing and tearing, it shifts up and leaves the disk seat in-process to withstand the case through the inside medium pressure of inlet pipe, and the limiting plate moves to the top of buffering extension board along with moving the body, and when the pressure release was ended, the elasticity of second spring made the valve rod drive case move down, utilizes buffer spring to cushion moving down of limiting plate to make the collision strength greatly reduced of case and disk seat, the case is difficult to impaired with the disk seat, thereby has improved the life of relief valve.
Description
Technical Field
The utility model relates to a valve equipment technical field specifically is a can prevent relief valve of case disk seat wearing and tearing.
Background
The safety valve is a special valve which is in a normally closed state under the action of external force, when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium pressure in the pipeline or the equipment is prevented from exceeding the specified value by discharging the medium to the outside of the system, belongs to the automatic valve class, is mainly used for boilers, pressure vessels and pipelines, controls the pressure to be not more than the specified value, and plays an important role in protecting personal safety and equipment operation.
Because the contact of case and valve rod is controlled through the spring to current relief valve, make the relief valve be in normal close state, it removes to withstand the case through medium pressure rise in the pipeline, realize the pressure release with the disk seat separation, however, after the automatic pressure release of relief valve, because the elasticity of spring is great, make case and disk seat contact process in, have certain collision, long this has been in the past, the contact surface of case and disk seat is worn and torn easily, make the life of relief valve reduce, and the spring of relief valve uses after a period, the elastic coefficient can reduce, need change it, and current relief valve is when changing the spring, need plug up the both ends of pipeline, prevent the pipeline medium from flowing, change again, make the spring of relief valve change more troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model provides a safety valve capable of preventing abrasion of a valve core and a valve seat, which has the advantages of preventing the damage of collision between the valve core and the valve seat after pressure relief and facilitating the replacement of a spring, and solves the problems that the prior safety valve controls the contact between the valve core and a valve rod through the spring, so that the safety valve is in a normally closed state, the valve core is jacked to move through the increase of medium pressure in a pipeline, and the pressure relief is realized by separating from the valve seat, however, after the automatic pressure relief of the safety valve is finished, because the elasticity of the spring is larger, certain collision can be generated in the contact process of the valve core and the valve seat, in the past, the contact surface of the valve core and the valve seat is easy to abrade, so that the service life of the safety valve is reduced, and after the spring of the safety valve is used for a period, the elastic coefficient can be reduced, then the replacement is carried out, so that the replacement of the spring of the safety valve is troublesome.
The utility model provides a following technical scheme: a safety valve capable of preventing a valve core and a valve seat from being abraded comprises a valve body, a control valve pipe and a safety cover, wherein a first flange is fixedly connected to the top end of the valve body, a second flange is fixedly connected to the bottom end of the control valve pipe, the first flange and the second flange are fixedly connected through screws, a third flange is fixedly connected to the top end of the control valve pipe, a fourth flange is fixedly connected to the bottom of the safety cover, the third flange and the fourth flange are fixedly connected through screws, a movable pipe body is movably sleeved inside the control valve pipe, a fixed block is fixedly connected to one side of the top of the inner cavity of the movable pipe body, a driven plate is movably sleeved on the other side of the inner part of the movable pipe body, a limiting plate is fixedly connected to the side of the driven plate, one end, far away from the driven plate, of the limiting plate extends to the outer part of the movable pipe body, one end of the steel wire rope penetrates through the fixed block and extends to the outside of the top end of the movable pipe body, the other side of the driven plate is fixedly connected with a first spring, one end, far away from the driven plate, of the first spring is fixedly connected with the side face of the fixed block, the side face of the control valve pipe is fixedly connected with a buffer pipe, the bottom of the inner cavity of the buffer pipe is fixedly connected with a buffer spring, the top end of the buffer spring is fixedly connected with a sliding plate, two sides of the top of the sliding plate are fixedly connected with coupling shafts, the top ends of the two coupling shafts are fixedly connected with buffer support plates, the top of the side wall of the inner cavity of the buffer pipe is fixedly connected with a stop block, the other side of the control valve pipe is fixedly connected with a limiting pipe, an adjusting screw rod is sleeved on the side face of the limiting pipe in a threaded manner, a linkage pipe is movably sleeved outside the linkage block, a sealing plate is fixedly connected to the side surface of the linkage pipe, the side surface of the sealing plate is fixedly connected with a limiting shaft, one end of the limiting shaft, which is far away from the sealing plate, extends to the inside of the control valve pipe, the bottom of the movable pipe body is fixedly connected with a limiting block, the middle part of the bottom end of the limiting block is fixedly connected with a valve rod, the bottom end of the valve rod extends into the valve body and is fixedly connected with a valve core, the top of the movable pipe body is fixedly connected with a spring sleeve, a second spring is movably sleeved at the top of the spring sleeve, a spring sleeve is movably sleeved at the top of the second spring, the side wall of the inner cavity of the control valve pipe is fixedly connected with a positioning block, one side of the bottom of the valve body is provided with an inlet pipe, an outlet pipe is arranged on the other side of the bottom of the valve body, and a valve seat located between the inlet pipe and the outlet pipe is fixedly installed inside the valve body.
Preferably, the top of the end, far away from the driven plate, of the limiting plate is designed to be an inclined plane, and the limiting plate is located between the two linkage shafts.
Preferably, the steel wire rope is movably sleeved with the first spring, the steel wire rope is movably sleeved with the fixed block, and the steel wire rope is not in contact with the spring sleeve.
Preferably, the side surface of the limiting block is provided with a slotted hole, the outer diameter of the slotted hole on the limiting block is larger than the inner diameter of the slotted hole, and the slotted hole on the limiting block is movably sleeved with one end of the limiting shaft.
Preferably, the valve core is positioned right above the valve seat, and the diameter of the top of the valve core is larger than that of the inside of the valve seat.
Preferably, a sliding groove matched with the limiting plate is formed in the joint of the buffer tube and the control valve tube, and the inner wall of the buffer tube is movably sleeved with the outer edge of the buffer support plate.
Preferably, the stop block is positioned below the sliding groove at the joint of the buffer tube and the control valve tube, and the stop block is positioned above the buffer support plate.
Preferably, the side surface of the linkage pipe is movably sleeved with one end of the adjusting screw rod, and the width value inside the linkage pipe is equal to that of the linkage block.
Preferably, the positioning block is located above the movable pipe body, the side face of the positioning block is not in contact with the side face of the second spring, and the bottom of the positioning block is fixedly connected with one end of the steel wire rope.
The utility model discloses possess following beneficial effect:
1. this can prevent relief valve of case disk seat wearing and tearing, it shifts up and leaves the disk seat in-process to withstand the case through the inside medium pressure of inlet pipe, and the limiting plate moves to the top of buffering extension board along with moving the body, and when the pressure release was ended, the elasticity of second spring made the valve rod drive case move down, utilizes buffer spring to cushion moving down of limiting plate to make the collision strength greatly reduced of case and disk seat, the case is difficult to impaired with the disk seat, thereby has improved the life of relief valve.
2. This can prevent relief valve of case disk seat wearing and tearing makes the closing plate drive the restriction axle and remove through rotating adjusting screw for in the restriction axle extends to the slotted hole on the restriction piece, utilize the restriction axle to carry on spacingly to the restriction piece, make the case remain throughout with the contact of disk seat, when changing the spring, need not to seal the both ends of pipeline again, the maintenance personal of being convenient for changes the spring of relief valve.
3. This can prevent relief valve of case disk seat wearing and tearing, elastic force effect through first spring, make the state that the limiting plate moved left all the time, when moving the body and moving upward, utilize the inclined plane design of limiting plate, make the limiting plate can move the top of buffering extension board, thereby be convenient for after the pressure release, utilize buffer spring to cushion, and at the in-process that moves down of removal body, wire rope withstands the limiting plate and moves to the right, before case contact valve rod, limiting plate and buffering extension board separation, make the top of buffering extension board removals limiting plate, thereby ensure that buffer spring can play the cushioning effect all the time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the structure control valve pipe of the present invention;
fig. 3 is a schematic view of the movable tube body of the structure of fig. 2 of the present invention;
fig. 4 is a section view of the structure limiting pipe of the utility model.
In the figure: 1. a valve body; 101. an inlet pipe; 102. an outlet pipe; 103. a valve seat; 2. a control valve tube; 21. moving the tube body; 211. a fixed block; 212. a passive plate; 213. a limiting plate; 214. a wire rope; 215. a first spring; 22. a limiting block; 23. a valve stem; 24. a valve core; 25. a buffer tube; 251. a buffer spring; 252. a sliding plate; 253. a linkage shaft; 254. a buffering support plate; 255. a stopper; 26. a limiting pipe; 261. adjusting the screw rod; 262. a rotating wheel; 263. a linkage block; 264. a linkage pipe; 265. a sealing plate; 266. defining an axis; 27. a spring sleeve; 28. a second spring; 29. positioning blocks; 3. a safety shield; 4. a first flange; 5. a second flange; 6. a third flange; 7. and a fourth flange.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a safety valve capable of preventing abrasion of a valve core and a valve seat comprises a valve body 1, a control valve tube 2 and a safety cover 3, wherein a first flange 4 is fixedly connected to the top end of the valve body 1, a second flange 5 is fixedly connected to the bottom end of the control valve tube 2, the first flange 4 and the second flange 5 are fixedly connected through screws, a third flange 6 is fixedly connected to the top end of the control valve tube 2, a fourth flange 7 is fixedly connected to the bottom of the safety cover 3, the third flange 6 and the fourth flange 7 are fixedly connected through screws, a movable tube body 21 is movably sleeved in the control valve tube 2, a fixed block 211 is fixedly connected to one side of the top of an inner cavity of the movable tube body 21, a driven plate 212 is movably sleeved on the other side of the inner part of the movable tube body 21, a limit plate 213 is fixedly connected to the side of the driven plate 212, and the top of, and the limit plate 213 is located between the two linking shafts 253, when the pressure of the fluid medium is larger, the upward moving height of the valve core 24 is higher, in the upward moving process of the limit plate 213, the inclined surface design of the limit plate 213 is utilized, so that when the limit plate 213 contacts with the buffer support plate 254, the limit plate 213 moves to the right, and the limit plate 213 can move to the upper side of the buffer support plate 254, so that the support of the buffer support plate 254 is utilized, and the buffer effect is performed when the valve rod 23 drives the valve core 24 to move downward after the pressure relief is finished, thereby greatly reducing the collision strength between the valve core 24 and the valve seat 103, well protecting the valve rod 23 and the valve seat 103, when the pressure relief strength is lower, the limit plate 213 can not move to the upper side of the buffer support plate 254, but the distance between the valve core 24 and the valve seat 103 is shorter, after the pressure relief is finished, the collision strength between the, and one end of the limiting plate 213 far from the driven plate 212 extends to the outside of the moving tube 21, the other side of the driven plate 212 is fixedly connected with a steel wire rope 214, the steel wire rope 214 is movably sleeved with a first spring 215, the steel wire rope 214 is movably sleeved with the fixed block 211, the steel wire rope 214 is not contacted with the spring sleeve 27, the limiting plate 213 moves downwards and moves rightwards while utilizing the steel wire rope 214, the limiting plate 213 is separated from the buffer support plate 254 before the valve core 24 is contacted with the valve seat 103, the elastic force of the buffer spring 251 is ensured not to influence the action of the second spring 28, the critical point of separation of the limiting plate 213 and the buffer support plate 254 can be tested to obtain a result, when the limiting plate 213 is separated from the buffer support plate 254, the valve core 24 is not contacted with the valve seat 103, one end of the steel wire rope 214 penetrates through the fixed block 211 and extends, one end of the first spring 215, which is far away from the driven plate 212, is fixedly connected with the side of the fixed block 211, the side of the control valve tube 2 is fixedly connected with a buffer tube 25, a sliding groove matched with the limit plate 213 is formed at the joint of the buffer tube 25 and the control valve tube 2, so that one end of the limit plate 213 can be ensured to be contacted with the buffer support plate 254, the buffer support plate 254 is utilized to match the elastic action of the buffer spring 251, so that the buffer effect on the downward movement of the limit plate 213 is achieved, the inner wall of the buffer tube 25 is movably sleeved with the outer edge of the buffer support plate 254, so that the buffer support plate 254 is ensured to be always kept in a balanced state, so that the stable buffer effect on the downward movement of the limit plate 213 is achieved, the buffer spring 251 is fixedly connected with the bottom of the inner cavity of the buffer tube 25, the top end of the buffer spring 251 is fixedly, the top of the side wall of the inner cavity of the buffer tube 25 is fixedly connected with a stop 255, the stop 255 is positioned below the sliding groove at the joint of the buffer tube 25 and the control valve tube 2, the stop 255 is positioned above the buffer support 254, the buffer support 254 is limited by the stop 255, the vertical distance between the buffer support 254 and the limit plate 213 under normal conditions is short, the limit plate 213 can be moved above the buffer support 254 when the pressure of a fluid medium is large, the buffer spring 251 is in a compressed state, the buffering strength of the buffer spring 251 is improved, the other side of the control valve tube 2 is fixedly connected with a limit tube 26, the side thread of the limit tube 26 is sleeved with an adjusting screw 261, one end of the adjusting screw 261 is fixedly connected with a rotating wheel 262 positioned outside the limit tube 26, the other end of the adjusting screw 261 is fixedly connected with a linkage block 263 positioned inside the limit tube 26, the linkage block 263 is movably sleeved with a linkage tube 264, the side surface of the linkage pipe 264 is movably sleeved with one end of the adjusting screw 261, and the width value of the interior of the linkage pipe 264 is equal to the width value of the linkage block 263, so that when the adjusting screw 261 rotates, the sealing plate 265 drives the limiting shaft 266 to move, the limiting block 22 is conveniently limited by the limiting shaft 266, the valve core 24 is contacted with the valve seat 103, the second spring 28 is conveniently replaced, the sealing plate 265 is utilized to improve the sealing effect of the interior of the control valve pipe 2, the side surface of the linkage pipe 264 is fixedly connected with the sealing plate 265, the side surface of the sealing plate 265 is fixedly connected with the limiting shaft 266, one end of the limiting shaft 266 far away from the sealing plate 265 extends to the interior of the control valve pipe 2, the bottom of the moving pipe body 21 is fixedly connected with the limiting block 22, the side surface of the limiting block 22 is provided with a slotted hole, the outer diameter of the slotted hole on the limiting block 22 is larger than, through the rotation of the adjusting screw 261, the limiting shaft 266 is clamped with the slotted hole on the limiting block 22, thereby fixing the valve core 24, and ensuring that the fluid medium in the inlet pipe 101 cannot flow out when the second spring 28 is replaced, which is convenient for an operator to directly replace the second spring 28, the middle part of the bottom end of the limiting block 22 is fixedly connected with the valve rod 23, the bottom end of the valve rod 23 extends into the valve body 1 and is fixedly connected with the valve core 24, the valve core 24 is positioned right above the valve seat 103, and the diameter of the top part of the valve core 24 is larger than that of the inside of the valve seat 103, so as to ensure that the valve core 24 can block the valve seat 103, the top part of the movable tube body 21 is fixedly connected with the spring sleeve 27, the top part of the spring sleeve 27 is movably sleeved with the second spring 28, the top part of the second spring 28 is movably sleeved with the spring sleeve 27, the side surface of the positioning block 29 is not in contact with the side surface of the second spring 28, the bottom of the positioning block 29 is fixedly connected with one end of the steel wire rope 214, the fixed connection between the positioning block 29 and the steel wire rope 214 is utilized to ensure that the limiting plate 213 can move rightwards in the downward moving process of the movable pipe body 21, so that the limiting plate 213 can be separated from the buffering support plate 254, the inlet pipe 101 is arranged on one side of the bottom of the valve body 1, the outlet pipe 102 is arranged on the other side of the bottom of the valve body 1, and the valve seat 103 located between the inlet pipe 101 and.
When in use, firstly, fluid medium enters through the inlet pipe 101, abuts against the valve core 24 to drive the valve rod 23 to move upwards, so that the movable pipe body 21 drives the limit plate 213 to move upwards to the upper part of the buffer support plate 254, then, after the pressure relief is finished, the valve rod 23 moves downwards under the action of the elastic force of the second spring 28, so that the movable pipe body 21 drives the limit plate 213 to move downwards, the limit plate 213 is buffered through the elastic force of the buffer spring 251, the limit plate 213 moves rightwards in the downward moving process of the limit plate 213 through the steel wire rope 214, one end of the limit plate 213 is separated from the buffer support plate 254, the buffer support plate 254 moves to the upper part of the limit plate 213 under the action of the elastic force of the buffer spring 251, finally, before the second spring 28 is replaced, the rotating wheel 262 is rotated to rotate the adjusting screw 261, one end of the limit shaft 266 is driven to move to the inside of, and separating the third flange 6 from the fourth flange 7, and replacing the second spring 28.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 a can prevent relief valve of case disk seat wearing and tearing, includes valve body (1), control valve pipe (2) and safety guard (3), its characterized in that: the top end of the valve body (1) is fixedly connected with a first flange (4), the bottom end of the control valve pipe (2) is fixedly connected with a second flange (5), the first flange (4) and the second flange (5) are fixedly connected through screws, the top end of the control valve pipe (2) is fixedly connected with a third flange (6), the bottom of the safety shield (3) is fixedly connected with a fourth flange (7), the third flange (6) and the fourth flange (7) are fixedly connected through screws, a movable pipe body (21) is movably sleeved in the control valve pipe (2), a fixed block (211) is fixedly connected to one side of the top of an inner cavity of the movable pipe body (21), a passive plate (212) is movably sleeved on the other side of the interior of the movable pipe body (21), a limiting plate (213) is fixedly connected to the side of the passive plate (212), and one end, far away from the passive plate (212), of the limiting plate (213) extends to the exterior of the movable pipe body (21), the other side of the driven plate (212) is fixedly connected with a steel wire rope (214), one end of the steel wire rope (214) penetrates through the fixed block (211) and extends to the outside of the top end of the movable pipe body (21), the other side of the driven plate (212) is fixedly connected with a first spring (215), one end, far away from the driven plate (212), of the first spring (215 is fixedly connected with the side face of the fixed block (211), the side face of the control valve pipe (2) is fixedly connected with a buffer pipe (25), the bottom of an inner cavity of the buffer pipe (25) is fixedly connected with a buffer spring (251), the top end of the buffer spring (251) is fixedly connected with a sliding plate (252), two sides of the top of the sliding plate (252) are fixedly connected with linkage shafts (253), the top ends of the two linkage shafts (253) are fixedly connected with buffer support plates (254), and the top of the inner cavity, the other side of the control valve pipe (2) is fixedly connected with a limiting pipe (26), the side surface of the limiting pipe (26) is in threaded sleeve connection with an adjusting screw rod (261), one end of the adjusting screw rod (261) is fixedly connected with a rotating wheel (262) positioned outside the limiting pipe (26), the other end of the adjusting screw rod (261) is fixedly connected with a linkage block (263) positioned inside the limiting pipe (26), the outside of the linkage block (263) is movably sleeved with a linkage pipe (264), the side surface of the linkage pipe (264) is fixedly connected with a sealing plate (265), the side surface of the sealing plate (265) is fixedly connected with a limiting shaft (266), one end, far away from the sealing plate (265), of the limiting shaft (266) extends into the inside of the control valve pipe (2), the bottom of the movable pipe body (21) is fixedly connected with a limiting block (22), and the middle part of the bottom end of the limiting block (22) is, the bottom of valve rod (23) extends to the inside and fixedly connected with case (24) of valve body (1), the top fixedly connected with spring bushing (27) of removal body (21), the top movable sleeve of spring bushing (27) is equipped with second spring (28), the top movable sleeve of second spring (28) is equipped with spring bushing (27), the lateral wall fixedly connected with locating piece (29) of control valve pipe (2) inner chamber, one side of valve body (1) bottom is equipped with import pipe (101), the opposite side of valve body (1) bottom is equipped with outlet pipe (102), the inside fixed mounting of valve body (1) has disk seat (103) that are located between import pipe (101) and outlet pipe (102).
2. The safety valve of claim 1, wherein the valve seat is protected from wear by: the top of one end, away from the driven plate (212), of the limiting plate (213) is designed to be an inclined surface, and the limiting plate (213) is located between the two linkage shafts (253).
3. The safety valve of claim 1, wherein the valve seat is protected from wear by: the steel wire rope (214) is movably sleeved with the first spring (215), the steel wire rope (214) is movably sleeved with the fixed block (211), and the steel wire rope (214) is not in contact with the spring sleeve (27).
4. The safety valve of claim 1, wherein the valve seat is protected from wear by: the side surface of the limiting block (22) is provided with a slotted hole, the outer diameter of the slotted hole on the limiting block (22) is larger than the inner diameter of the slotted hole, and the slotted hole on the limiting block (22) is movably sleeved with one end of the limiting shaft (266).
5. The safety valve of claim 1, wherein the valve seat is protected from wear by: the valve core (24) is positioned right above the valve seat (103), and the diameter of the top of the valve core (24) is larger than that of the inside of the valve seat (103).
6. The safety valve of claim 1, wherein the valve seat is protected from wear by: the connection part of the buffer tube (25) and the control valve tube (2) is provided with a sliding groove matched with the limiting plate (213), and the inner wall of the buffer tube (25) is movably sleeved with the outer edge of the buffer support plate (254).
7. The safety valve of claim 1, wherein the valve seat is protected from wear by: the stop block (255) is positioned below the chute at the joint of the buffer tube (25) and the control valve tube (2), and the stop block (255) is positioned above the buffer support plate (254).
8. The safety valve of claim 1, wherein the valve seat is protected from wear by: the side surface of the linkage pipe (264) is movably sleeved with one end of the adjusting screw rod (261), and the width value of the interior of the linkage pipe (264) is equal to that of the linkage block (263).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414950.3U CN211715848U (en) | 2019-08-29 | 2019-08-29 | Safety valve capable of preventing valve core and valve seat from being abraded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414950.3U CN211715848U (en) | 2019-08-29 | 2019-08-29 | Safety valve capable of preventing valve core and valve seat from being abraded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715848U true CN211715848U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921414950.3U Active CN211715848U (en) | 2019-08-29 | 2019-08-29 | Safety valve capable of preventing valve core and valve seat from being abraded |
Country Status (1)
| Country | Link |
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| CN (1) | CN211715848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135700A (en) * | 2021-12-01 | 2022-03-04 | 刘杰 | Multi-section pressure release valve of boiler |
| CN117167493A (en) * | 2023-11-03 | 2023-12-05 | 华英阀业有限公司 | Valve assembly based on valve rod and use method thereof |
-
2019
- 2019-08-29 CN CN201921414950.3U patent/CN211715848U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135700A (en) * | 2021-12-01 | 2022-03-04 | 刘杰 | Multi-section pressure release valve of boiler |
| CN117167493A (en) * | 2023-11-03 | 2023-12-05 | 华英阀业有限公司 | Valve assembly based on valve rod and use method thereof |
| CN117167493B (en) * | 2023-11-03 | 2024-03-08 | 华英阀业有限公司 | Valve assembly based on valve rod and use method thereof |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211122 Address after: 110027 No. 5-8, Hunhe 15th Street, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee after: Liaoning Dayuan Energy Management Co.,Ltd. Address before: 251800 No. 529, Yangcheng 4th Road, Yangxin County, Binzhou City, Shandong Province Patentee before: Wang Jixin |
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| TR01 | Transfer of patent right |