CN113074273A - Steam regulating valve capable of being automatically closed - Google Patents
Steam regulating valve capable of being automatically closedDownload PDFInfo
- Publication number
- CN113074273A CN113074273ACN202110444986.1ACN202110444986ACN113074273ACN 113074273 ACN113074273 ACN 113074273ACN 202110444986 ACN202110444986 ACN 202110444986ACN 113074273 ACN113074273 ACN 113074273A
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- plate
- fixedly connected
- sleeve
- regulating valve
- rectangular box
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- 230000001105regulatory effectEffects0.000titleclaimsabstractdescription50
- XLYOFNOQVPJJNP-UHFFFAOYSA-NwaterSubstancesOXLYOFNOQVPJJNP-UHFFFAOYSA-N0.000claimsdescription8
- 239000011148porous materialSubstances0.000claimsdescription5
- 230000000149penetrating effectEffects0.000claimsdescription3
- 230000001276controlling effectEffects0.000claimsdescription2
- 238000012423maintenanceMethods0.000description2
- 238000000034methodMethods0.000description2
- 230000009286beneficial effectEffects0.000description1
- 230000007547defectEffects0.000description1
- 239000000463materialSubstances0.000description1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- 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
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
Description
Technical Field
The invention relates to the technical field of regulating valves, in particular to a steam regulating valve capable of being automatically closed.
Background
The steam regulating valve takes compressed air as a power source, takes an air cylinder as an actuator, drives a valve by means of accessories such as an electric valve positioner, a converter, an electromagnetic valve, a position-protecting valve and the like, realizes switching value or proportional regulation, and receives a control signal of an industrial automatic control system to regulate a pipeline medium: flow rate, pressure, temperature, etc. The pneumatic regulating valve has the characteristics of simple control, quick response and intrinsic safety, and no additional explosion-proof measures are needed.
The steam control valve needs start-up cylinder when using, begins work, and the back is accomplished in the work, needs artifical manual to close, and the operating duration that needs strict control steam control valve sometimes, manual regulation's inaccuracy, need wait for a long time moreover, can not realize self-closing, and when utilizing computer control, the cost is higher, and the maintenance is difficult, so we propose a steam control valve that can self-closing for solve above-mentioned problem.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an automatically-closed steam regulating valve.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a but self-closing's steam control valve, includes the rectangle case, the bottom inner wall fixedly connected with governing valve body of rectangle case, one side inner wall sliding connection of rectangle case has the sliding plate, the same first spring of fixedly connected with between the top of sliding plate and the top inner wall of rectangle case, the top fixedly connected with fixed block of sliding plate, the below of sliding plate is provided with and is used for control flap to close the control assembly who opens, the top inner wall of rectangle case is provided with the fixed subassembly that is used for fixed block, one side inner wall fixedly connected with backup pad of rectangle case, the top of backup pad is provided with the adjusting part who is used for adjusting the self-closing time.
Preferably, the control assembly comprises an air cylinder fixedly connected to the top of the regulating valve body, a piston rod of the air cylinder is fixedly connected to the bottom of the sliding plate, a valve rod is fixedly connected to the bottom of the sliding plate, the bottom of the valve rod penetrates through the regulating valve body and extends into the regulating valve body, a rubber sleeve is fixedly arranged on the outer wall of the valve rod in a fixing mode, and a water inlet and a water outlet are formed in the two ends of the regulating valve body respectively.
Preferably, the fixed subassembly includes fixed plate of fixed connection at rectangle roof portion inner wall and the draw-in groove of seting up in fixed block one side, sliding connection has the fixture block with draw-in groove looks block complex is run through to the inside of fixed plate, the fixed cover of outer wall of fixture block is equipped with first lagging, the same second spring of one side fixedly connected with that first lagging and fixed plate are close to each other, the second spring housing is established on the fixture block, the first arm-tie of one end fixedly connected with of fixture block.
Preferably, the adjusting part includes the regulating box of fixed connection at the backup pad top, the inside of regulating box is provided with the piston board, the top fixedly connected with lifter of piston board, regulating box and fixedly connected with sleeve are run through at the top of lifter, the sleeve is located one side of fixture block, telescopic top and the bottom of first arm-tie are inconsistent, the same third spring of fixedly connected with between the top of regulating box and the telescopic bottom, the third spring housing is established on the lifter, second through-hole and first through-hole have been seted up to one side of regulating box, the second through-hole is located the top of first through-hole.
Preferably, the adjusting part still includes the pull rod of running through sliding connection in rectangle case one side, the same third lagging of both sides inner wall fixedly connected with of rectangle case, the one end that the pull rod is located rectangle incasement portion runs through the third lagging, the outer wall sliding sleeve of pull rod is equipped with the second lagging, be provided with same fourth spring between second lagging and the third lagging, the both ends of fourth spring are inconsistent with one side that second lagging and third lagging are close to each other respectively, the fourth spring housing is established on the pull rod, the one end fixedly connected with plectane that the pull rod is located rectangle incasement portion, a plurality of gas pockets have been seted up to the inside of plectane, the pull rod is located the outside one end fixedly connected with second pulling plate of rectangle case.
Preferably, the inner walls of the two sides of the rectangular box are rotatably connected with the same rotating shaft, a gear is fixedly sleeved on the outer wall of the rotating shaft, one side of the sleeve, which is close to the gear, is fixedly connected with a first rack meshed with the gear, one side of the sliding plate, which is close to the gear, is fixedly connected with a vertical plate, and one side of the vertical plate, which is close to the gear, is fixedly connected with a second rack.
Preferably, one side fixedly connected with scale plate of rectangle case, the outer wall fixedly connected with pointer of second arm-tie, mark the scale of automatic closing time on the scale plate.
Preferably, the pore sizes of the plurality of pores are different from each other.
Compared with the prior art, the invention has the beneficial effects that:
1. starting the air cylinder, driving a sliding plate to vertically move upwards by a piston rod of the air cylinder, extruding a first spring by the sliding plate and driving a fixed block and a vertical plate to vertically move upwards, driving a second rack to vertically move upwards by the vertical plate, driving a gear to rotate by the second rack, driving a first rack to vertically move downwards by the gear, driving a sleeve to vertically move downwards by the first rack, further preventing the sleeve from being in contact with a first pulling plate, and then releasing the brake of the clamping block;
2. the fixed block continues to move upwards, the clamping block is clamped with the clamping groove, the fixed block is fixed, the sleeve drives the lifting rod to vertically move downwards and extrude the third spring, and the lifting rod drives the piston plate to vertically move downwards;
3. the second pulling plate is pulled transversely and rotates, the pulling rod drives the circular plate to move transversely, the circular plate drives the second sleeve plate to move transversely and extrude the fourth spring, the second pulling plate drives the pulling rod and the pointer to rotate, the pulling rod drives the circular plate to rotate, so that air holes with different apertures are communicated with the second through hole, the air outlet speed is adjusted, and the automatic closing time is determined according to the scales on the scale plate;
4. close the cylinder, the piston board is slowly kick-backed, the piston board drives the vertical rebound of lifter, the lifter drives the vertical rebound of sleeve, the sleeve drives first arm-tie lateral shifting, first arm-tie drives fixture block lateral shifting, and then remove with the block state of fixed block, the sliding plate restores to the throne under the spring action of first spring, the gliding in-process, the second gear drive gear rotates, the gear can drive the sleeve and carry out the rebound of less range, and then close the governing valve body.
According to the automatic air outlet control valve, the air cylinder is started to open the adjusting valve body, the second pulling plate is transversely pulled and rotated according to actual requirements, so that the air holes with different apertures are communicated with the second through hole, the air outlet speed is adjusted, the automatic closing time is determined according to the scales on the scale plate, manual watching is not needed, the automatic closing is performed at the appointed time, a large amount of manpower and material resources are saved, the maintenance cost is reduced, technology and experience are not needed, the structure is simple, and the operation is convenient.
Drawings
FIG. 1 is a schematic sectional view of a self-closing steam control valve according to the present invention;
FIG. 2 is a schematic sectional view of the regulating valve body of the present invention;
FIG. 3 is an enlarged view of portion A of the present invention;
FIG. 4 is an enlarged view of portion B of the present invention;
FIG. 5 is a side view schematically illustrating the structure of the circular plate according to the present invention;
FIG. 6 is a front sectional view of the regulating box according to the present invention;
fig. 7 is a side view of the scale plate according to the present invention.
In the figure: 1. a rectangular box; 2. a first spring; 3. a lifting rod; 4. an adjusting box; 5. a support plate; 6. a vertical plate; 7. a regulating valve body; 8. a rubber sleeve; 9. a valve stem; 10. a cylinder; 11. a sliding plate; 12. a water inlet; 13. a water outlet; 14. a card slot; 15. a fixed block; 16. a first deck; 17. a clamping block; 18. a second spring; 19. a fixing plate; 20. a first pulling plate; 21. a sleeve; 22. a first rack; 23. a gear; 24. a rotating shaft; 25. a second rack; 26. a third spring; 27. a second pulling plate; 28. a pointer; 29. a fourth spring; 30. a second deck; 31. a circular plate; 32. a third deck of plates; 33. a pull rod; 34. a scale plate; 35. air holes; 36. a first through hole; 37. a second through hole; 38. a piston plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-7, a steam regulating valve capable of being automatically closed, which comprises arectangular box 1, a regulatingvalve body 7 is fixedly connected to the inner wall of the bottom of therectangular box 1, a slidingplate 11 is slidably connected to the inner wall of one side of therectangular box 1, the samefirst spring 2 is fixedly connected between the top of the slidingplate 11 and the inner wall of the top of therectangular box 1, a fixedblock 15 is fixedly connected to the top of the slidingplate 11, a control component for controlling the valve to be closed and opened is arranged below the slidingplate 11, a fixed component for fixing the fixedblock 15 is arranged on the inner wall of the top of therectangular box 1, a supportingplate 5 is fixedly connected to the inner wall of one side of therectangular box 1, and an adjusting.
According to the invention, the control assembly comprises anair cylinder 10 fixedly connected to the top of the regulatingvalve body 7, a piston rod of theair cylinder 10 is fixedly connected with the bottom of a slidingplate 11, the bottom of the slidingplate 11 is fixedly connected with avalve rod 9, the bottom of thevalve rod 9 penetrates through the regulatingvalve body 7 and extends into the regulatingvalve body 7, arubber sleeve 8 is fixedly sleeved on the outer wall of thevalve rod 9, and awater inlet 12 and awater outlet 13 are respectively formed in two ends of the regulatingvalve body 7.
According to the invention, the fixing component comprises a fixingplate 19 fixedly connected to the inner wall of the top of therectangular box 1 and a clampinggroove 14 formed in one side of the fixingblock 15, a clampingblock 17 clamped and matched with the clampinggroove 14 penetrates through the fixingplate 19 in a sliding mode, afirst sleeve plate 16 is fixedly sleeved on the outer wall of the clampingblock 17, one side, close to each other, of thefirst sleeve plate 16 and one side, close to the fixingplate 19, of the fixingplate 19 are fixedly connected with a samesecond spring 18, thesecond spring 18 is sleeved on the clampingblock 17, and one end of the clampingblock 17 is fixedly connected.
According to the invention, the adjusting assembly comprises anadjusting box 4 fixedly connected to the top of a supportingplate 5, apiston plate 38 is arranged inside theadjusting box 4, a liftingrod 3 is fixedly connected to the top of thepiston plate 38, the top of the liftingrod 3 penetrates through theadjusting box 4 and is fixedly connected with asleeve 21, thesleeve 21 is located on one side of aclamping block 17, the top of thesleeve 21 is abutted to the bottom of the first pullingplate 20, a samethird spring 26 is fixedly connected between the top of theadjusting box 4 and the bottom of thesleeve 21, thethird spring 26 is sleeved on the liftingrod 3, a second throughhole 37 and a first throughhole 36 are formed in one side of theadjusting box 4, and the second throughhole 37 is located above the first throughhole 36.
In the invention, the adjusting assembly further comprises apull rod 33 which is connected to one side of therectangular box 1 in a penetrating and sliding manner, the inner walls of two sides of therectangular box 1 are fixedly connected with the samethird sleeve plate 32, one end of thepull rod 33, which is positioned inside therectangular box 1, penetrates through thethird sleeve plate 32, the outer wall of thepull rod 33 is sleeved with thesecond sleeve plate 30 in a sliding manner, the samefourth spring 29 is arranged between thesecond sleeve plate 30 and thethird sleeve plate 32, two ends of thefourth spring 29 are respectively abutted against one side, which is close to thesecond sleeve plate 30 and thethird sleeve plate 32, thefourth spring 29 is sleeved on thepull rod 33, one end of thepull rod 33, which is positioned inside therectangular box 1, is fixedly connected with acircular plate 31, a plurality ofair holes 35 are formed inside thecircular plate 31, and one end of.
In the invention, the inner walls of two sides of therectangular box 1 are rotatably connected with the samerotating shaft 24, the outer wall of therotating shaft 24 is fixedly sleeved with agear 23, one side of thesleeve 21 close to thegear 23 is fixedly connected with afirst rack 22 meshed with thegear 23, one side of the slidingplate 11 close to thegear 23 is fixedly connected with avertical plate 6, and one side of thevertical plate 6 close to thegear 23 is fixedly connected with asecond rack 25.
In the present invention, the pore diameters of the plurality ofpores 35 are different from each other.
Example two
The embodiment is improved on the basis of the first embodiment: ascale plate 34 is fixedly connected to one side of therectangular box 1, apointer 28 is fixedly connected to the outer wall of the second pullingplate 27, and scales for automatically closing time are marked on thescale plate 34.
The working principle is as follows: when the device is used, the cylinder 10 is started, the piston rod of the cylinder 10 drives the sliding plate 11 to vertically move upwards, the sliding plate 11 extrudes the first spring 2 and drives the fixed block 15 and the vertical plate 6 to vertically move upwards, the vertical plate 6 drives the second rack 25 to vertically move upwards, the second rack 25 drives the gear 23 to rotate, the gear 23 drives the first rack 22 to vertically move downwards, the first rack 22 drives the sleeve 21 to vertically move downwards, so that the sleeve 21 is not abutted against the first pulling plate 20, at the moment, the clamping block 17 is in a brake-released state, the fixed block 15 continues to move upwards, so that the clamping block 17 is clamped with the clamping groove 14, the fixed block 15 is further fixed, the sleeve 21 drives the lifting rod 3 to vertically move downwards and extrude the third spring 26, the lifting rod 3 drives the piston plate 38 to vertically move downwards, the second pulling plate 27 is transversely pulled and rotates, the pull rod 33 drives the circular plate 31 to transversely move, the circular plate 31 drives the second pulling plate 30 to, the second pulling plate 27 drives the pulling rod 33 and the pointer 28 to rotate, the pulling rod 33 drives the circular plate 31 to rotate, so that the air holes 35 with different apertures are communicated with the second through hole 37, the air outlet speed is adjusted, the time of automatic closing is determined according to the scales on the scale plate 34, the air cylinder 10 is closed, the piston plate 38 rebounds slowly, the piston plate 38 drives the lifting rod 3 to move vertically upwards, the lifting rod 3 drives the sleeve 21 to move vertically upwards, the sleeve 21 drives the first pulling plate 20 to move transversely, the first pulling plate 20 drives the clamping block 17 to move transversely, the clamping state with the fixed block 15 is released, the sliding plate 11 returns to the original position under the elastic force action of the first spring 2, in the sliding process, the second rack 25 drives the gear 23 to rotate, the gear 23 can drive the sleeve 21 to move upwards in a smaller range, and the adjusting valve body 7 is closed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A steam regulating valve capable of being automatically closed comprises a rectangular box (1) and is characterized in that, the inner wall of the bottom of the rectangular box (1) is fixedly connected with a regulating valve body (7), a sliding plate (11) is connected with the inner wall of one side of the rectangular box (1) in a sliding way, the same first spring (2) is fixedly connected between the top of the sliding plate (11) and the inner wall of the top of the rectangular box (1), the top of the sliding plate (11) is fixedly connected with a fixed block (15), a control component for controlling the valve to be closed and opened is arranged below the sliding plate (11), the inner wall of the top of the rectangular box (1) is provided with a fixing component for fixing a fixing block (15), a supporting plate (5) is fixedly connected with the inner wall of one side of the rectangular box (1), the top of the supporting plate (5) is provided with an adjusting component for adjusting the automatic closing time.
2. The steam regulating valve capable of being automatically closed according to claim 1, wherein the control assembly comprises a cylinder (10) fixedly connected to the top of the regulating valve body (7), a piston rod of the cylinder (10) is fixedly connected to the bottom of a sliding plate (11), a valve rod (9) is fixedly connected to the bottom of the sliding plate (11), the bottom of the valve rod (9) penetrates through the regulating valve body (7) and extends into the regulating valve body (7), a rubber sleeve (8) is fixedly sleeved on the outer wall of the valve rod (9), and a water inlet (12) and a water outlet (13) are respectively opened at two ends of the regulating valve body (7).
3. The steam regulating valve capable of being automatically closed is characterized in that the fixing assembly comprises a fixing plate (19) fixedly connected to the inner wall of the top of the rectangular box (1) and a clamping groove (14) formed in one side of the fixing plate (15), a clamping block (17) in clamping fit with the clamping groove (14) is connected to the inside of the fixing plate (19) in a penetrating and sliding mode, a first sleeve plate (16) is fixedly sleeved on the outer wall of the clamping block (17), the same second spring (18) is fixedly connected to the side, close to each other, of the first sleeve plate (16) and the fixing plate (19), the second spring (18) is sleeved on the clamping block (17), and a first pulling plate (20) is fixedly connected to one end of the clamping block (17).
4. The steam regulating valve capable of being automatically closed according to claim 1, wherein the regulating assembly comprises a regulating box (4) fixedly connected to the top of a supporting plate (5), a piston plate (38) is arranged inside the regulating box (4), a lifting rod (3) is fixedly connected to the top of the piston plate (38), the top of the lifting rod (3) penetrates through the regulating box (4) and is fixedly connected with a sleeve (21), the sleeve (21) is located on one side of a clamping block (17), the top of the sleeve (21) is abutted to the bottom of a first pulling plate (20), a same third spring (26) is fixedly connected between the top of the regulating box (4) and the bottom of the sleeve (21), the third spring (26) is sleeved on the lifting rod (3), a second through hole (37) and a first through hole (36) are formed in one side of the regulating box (4), the second through hole (37) is located above the first through hole (36).
5. The steam regulating valve capable of being automatically closed according to claim 1, wherein the regulating assembly further comprises a pull rod (33) which is connected to one side of the rectangular box (1) in a penetrating and sliding manner, the inner walls of two sides of the rectangular box (1) are fixedly connected with the same third sleeve plate (32), one end of the pull rod (33) located inside the rectangular box (1) penetrates through the third sleeve plate (32), the outer wall of the pull rod (33) is slidably sleeved with the second sleeve plate (30), the same fourth spring (29) is arranged between the second sleeve plate (30) and the third sleeve plate (32), two ends of the fourth spring (29) are respectively abutted to one side of the second sleeve plate (30) and the third sleeve plate (32) close to each other, the fourth spring (29) is sleeved on the pull rod (33), one end of the pull rod (33) located inside the rectangular box (1) is fixedly connected with a circular plate (31), a plurality of air holes (35) are formed in the circular plate (31), and the pull rod (33) is fixedly connected with a second pull plate (27) at one end outside the rectangular box (1).
6. The steam regulating valve capable of being automatically closed is characterized in that the inner walls of two sides of the rectangular box (1) are rotatably connected with the same rotating shaft (24), the outer wall of the rotating shaft (24) is fixedly sleeved with a gear (23), one side of the sleeve (21) close to the gear (23) is fixedly connected with a first rack (22) meshed with the gear (23), one side of the sliding plate (11) close to the gear (23) is fixedly connected with a vertical plate (6), and one side of the vertical plate (6) close to the gear (23) is fixedly connected with a second rack (25).
7. The steam regulating valve capable of being automatically closed is characterized in that a scale plate (34) is fixedly connected to one side of the rectangular box (1), a pointer (28) is fixedly connected to the outer wall of the second pulling plate (27), and scales of automatic closing time are marked on the scale plate (34).
8. An automatically closable steam regulating valve according to claim 5, characterized in that the pore sizes of said air holes (35) are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110444986.1ACN113074273B (en) | 2021-04-24 | 2021-04-24 | Steam regulating valve capable of being automatically closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110444986.1ACN113074273B (en) | 2021-04-24 | 2021-04-24 | Steam regulating valve capable of being automatically closed |
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| CN113074273Atrue CN113074273A (en) | 2021-07-06 |
| CN113074273B CN113074273B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110444986.1AActiveCN113074273B (en) | 2021-04-24 | 2021-04-24 | Steam regulating valve capable of being automatically closed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018313A (en)* | 2021-08-24 | 2022-02-08 | 贵州宝智达网络科技有限公司 | A temperature and humidity acquisition device based on NB-IoT wireless communication |
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| CN210422061U (en)* | 2019-06-04 | 2020-04-28 | 江苏乐可视智能系统股份有限公司 | Solar energy lift stereo garage |
| CN212745212U (en)* | 2020-07-17 | 2021-03-19 | 杭州力琪阀门有限公司 | Combined regulating valve |
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| CN114018313A (en)* | 2021-08-24 | 2022-02-08 | 贵州宝智达网络科技有限公司 | A temperature and humidity acquisition device based on NB-IoT wireless communication |
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| CN113074273B (en) | 2023-06-06 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | Denomination of invention:A steam regulating valve that can automatically close Granted publication date:20230606 Pledgee:China Minsheng Banking Corp Wenzhou branch Pledgor:Jinggong Valve Group Co.,Ltd. Registration number:Y2024980005148 |