CN204201205U - Pressure regulator valve - Google Patents
Pressure regulator valve Download PDFInfo
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- CN204201205U CN204201205U CN201420660263.0U CN201420660263U CN204201205U CN 204201205 U CN204201205 U CN 204201205U CN 201420660263 U CN201420660263 U CN 201420660263U CN 204201205 U CN204201205 U CN 204201205U
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Abstract
The utility model discloses a kind of pressure regulator valve, comprise valve pipe, there is the valve seat of valve port, valve plate and valve rod; Described valve seat is fixedly arranged in described valve pipe; Described valve rod through described valve plate, and can drive described valve plate along described valve pipe move axially open or close described valve port; Described valve plate comprises can with the valve plate body of described valve port gluing, sealing with along described valve plate body shaft to the valve plate guide portion stretched out; Described valve plate guide portion is plugged in described valve seat, and the perisporium of described valve plate guide portion offers the connecting port of through valve support chamber.As above, this pressure regulator valve can ensure the gluing, sealing of valve plate and valve port, effective close port, and the reliability of product is higher.
Description
Technical field
The utility model relates to refrigeration control system technical field, particularly relates to a kind of pressure regulator valve.
Background technique
At present, common a kind of pressure regulator valve comprises spring seat and has the valve body of valve pocket; Described valve body is fixedly connected on the lower end of described spring seat.
Be provided with the valve seat with circulation passage in described valve body, this valve seat offers valve port, described valve pocket is divided into epicoele and cavity of resorption.Wherein, described epicoele is communicated with fluid connecting pipe respectively with described cavity of resorption.
The inwall of described spring seat is shape of threads; Be provided with adjusting screw in described spring seat, this adjusting screw can coordinate with the worm structure of spring seat inwall, and moving axially along spring seat.
Be provided with bellows in described epicoele, be also provided with pressure adjusting spring in described spring seat, its one end abuts with aforementioned adjusting screw, and its other end abuts with described bellows.
This pressure regulator valve also comprises valve plate and valve rod; Described valve plate coordinates with described valve port; The lower end of described bellows is fixed in one end of described valve rod, and the other end through described valve plate, and coordinates with described valve plate.
By regulating the upper-lower position of adjusting screw, the pretightening force of pressure adjusting spring can be regulated, thus regulate the preset pressure of pressure regulator valve.
According to the pressure difference of pressure and preset pressure that fluid flows into, valve rod can move up and down, and drives valve plate to move up and down, thus unlatching or close port, realizes being turned on or off of pressure regulator valve import and outlet.
In existing structure, the part that valve rod coordinates with valve plate is square post or rectangular column usually, correspondingly, valve plate arranges the square opening coordinated with valve rod or rectangular opening, thus valve plate can be driven when valve rod moves to move, thus unlatching or close port.
The above-mentioned fit system of valve plate and valve rod, the relative stem position of valve plate is fixed, in actual using process, if when valve rod is because of External Force Acting or other factors impact generation deflection, valve plate cannot be made adjustment, thus cannot fit with valve port well, causing cannot effective close port, affects the use of pressure regulator valve.
In view of this, how to improve the structure of pressure regulator valve, valve plate can effective close port all the time, is the current technical issues that need to address of those skilled in the art.
Model utility content
The purpose of this utility model is to provide a kind of pressure regulator valve, and the valve plate of this pressure regulator valve can be fitted with valve port all the time, guarantees effective closedown of valve port.
For solving the problems of the technologies described above, the utility model provides a kind of pressure regulator valve, comprises valve pipe, has the valve seat of valve port, valve plate and valve rod; Described valve seat is fixedly arranged in described valve pipe; Described valve rod through described valve plate, and can drive described valve plate along described valve pipe move axially open or close described valve port;
Described valve plate comprises can with the valve plate body of described valve port gluing, sealing with along described valve plate body shaft to the valve plate guide portion stretched out; Described valve plate guide portion is plugged in described valve seat, and described valve plate guide portion offers the connecting port of through valve support chamber.
As above design, valve plate is provided with along valve plate body shaft to the valve plate guide portion stretched out, this valve plate guide portion is plugged in valve seat, when valve plate moves axially unlatching or close port along valve pipe under the drive of valve rod, by the restriction of valve plate guide portion, the valve port of valve plate body and valve seat is in plumbness, that is, even if valve rod is by External Force Acting deflection, due to the restriction by valve plate guide portion, valve plate body also can keep vertical with valve port, thus, valve plate body can with valve port gluing, sealing, effective close port, the reliability of product is higher; In addition, perisporium due to valve plate guide portion offers the connecting port of through valve support chamber, so when valve plate opens valve port under the drive of valve rod, the import of valve pipe is communicated with by valve support chamber, described connecting port with outlet, and the setting of valve plate guide portion can not affect the normal use of pressure regulator valve.
The through hole that described valve plate coordinates with described valve rod is manhole.
Described valve rod comprises large-diameter portion and is positioned at the minor diameter part of described large-diameter portion lower end, and described valve plate is sheathed on described minor diameter part.
Sealing is provided with between described minor diameter part and described valve plate.
The bottom of described large-diameter portion offers groove, and the upper end of described Sealing is placed in described groove.
The diameter of the manhole of described valve plate is less than the external diameter of described large-diameter portion.
The lower end of described valve seat offers pilot hole; The lower end of described valve rod is through described pilot hole.
The bottom of described valve rod is provided with bounding means, moves axially distance with what limit described valve rod.
Also comprise the damping spring being sheathed on described valve rod, its one end abuts the lower end surface of described valve plate body, and its other end abuts the lower end surface of described valve support chamber.
Accompanying drawing explanation
Fig. 1 provides by the utility model the generalized section of a kind of embodiment of pressure regulator valve;
Fig. 2 is the structural representation of valve seat in Fig. 1, valve plate and valve rod cooperation place;
Fig. 3 provides by the utility model the structural representation of the first embodiment of the valve plate of pressure regulator valve;
Fig. 4 is the generalized section of Fig. 3;
Fig. 5 provides by the utility model the structural representation of the second embodiment of the valve plate of pressure regulator valve;
Fig. 6 is the generalized section of Fig. 5;
Fig. 7 provides by the utility model the generalized section of the first embodiment of the valve seat of pressure regulator valve;
Fig. 8 is the worm's eye view of Fig. 7;
Fig. 9 provides by the utility model the generalized section of the second embodiment of the valve seat of pressure regulator valve; Figure 10 is the worm's eye view of Fig. 9.
In Fig. 1-10:
Valve pipe 10, import 10a, outlet 10b;
Valve seat 20,20 ', valve support chamber 20a, 20 ' a, opening 20b, 20 ' b, pilot hole 20c, 20 ' c;
Valve plate 30, valve plate body 31, valve plate guide portion 32,32 ', intercommunicating pore 32a, notch 32 ' a;
Valve rod 40, large-diameter portion 41, minor diameter part 42, damping spring 43, stop nut 44;
Bellows 50, catch 51;
Adjustment seat 60, Regulation spring 61, adjusting nut 62, end cap 63;
Sealing 71, sealed member 72.
Embodiment
Core of the present utility model is to provide a kind of pressure regulator valve, and the valve plate of this pressure regulator valve can be fitted with valve port all the time, guarantees effective closedown of valve port.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Here it should be noted that, in literary composition, the upper and lower noun of locality that waits is that to close with the mutual alignment of component in Fig. 1-10 in figure and between component be benchmark definition; Should be appreciated that the use of the described noun of locality is just in order to state the clear and convenient of scheme, should not limit the protection domain of the application's request.
Please refer to Fig. 1-2, Fig. 1 provides by the utility model the generalized section of a kind of embodiment of pressure regulator valve; Fig. 2 is the structural representation of valve seat in Fig. 1, valve plate and valve rod cooperation place.
In this embodiment, described pressure regulator valve comprises valve pipe 10, valve pipe 10 offers import 10a and outlet 10b, can be connected with inlet tube and outer pipe respectively.
Be installed with valve seat 20 in valve pipe 10, this valve seat 20 offers the valve port be communicated with valve support chamber 20a, and valve support chamber 20a is communicated with import 10a all the time, by controlling the keying of valve port, can control import 10a and the conducting or non-conduction exporting 10b.
The upper end of valve seat 20 is provided with valve plate 30, the valve plate guide portion 32 that this valve plate 30 comprises valve plate body 31 and axially stretches out along valve plate body 31; Wherein, valve plate body 31 can with the valve port gluing, sealing of valve seat 20, valve plate guide portion 32 is plugged in valve seat 20, and the perisporium of valve plate guide portion 32 offers the connecting port of the valve support chamber 20a of through valve seat 20.
This pressure regulator valve also comprises the valve rod 40 through valve plate 30, this valve rod 40 can drive valve plate 30 along valve pipe 10 move axially open or close the valve port being located at valve seat 20.
Particularly, valve rod 40 and valve plate body 31 grafting, the periphery wall of valve plate guide portion 32 and the inner circle wall of valve seat 20 are fitted.
Perisporium due to valve plate guide portion 32 offers the connecting port of through valve support chamber 20a, so when move on valve plate body 31 is under the drive of valve rod 40 open valve port time, import 10a is communicated with outlet 10b through the connecting port of valve support chamber 20a and valve plate guide portion 32 perisporium, can not affect the connection that pressure regulator valve is imported and exported because of the setting of valve plate guide portion 32.
In concrete scheme, the connecting port of valve plate guide portion perisporium can be the form of intercommunicating pore 32a, as shown in Figures 3 and 4, valve plate guide portion 32 offers multiple intercommunicating pore 32a along its perisporium, these intercommunicating pores 32a is preferably evenly arranged along the circumference of valve plate guide portion 32, stablizes to make the uniform force of valve plate guide portion 32.Obviously, the shape of intercommunicating pore 32a is not limited to the circular port shown in figure, specifically can be set to ellipse or other shapes according to actual needs.
In concrete scheme, the connecting port of valve plate guide portion perisporium also can be the form of notch 32 ' a, and as shwon in Figures 5 and 6, valve plate guide portion 32 ' offers multiple notch 32 ' a along its perisporium, and these notches 32 ' a can be formed by the mode of groove milling.
Certainly, except above-mentioned form, the connecting port of valve plate guide portion perisporium also can be other forms, as long as can through valve support chamber 20a.
The top of valve rod 40 is fixed with bellows 50, and top and the catch 51 of bellows 50 are fixed, and catch 51 is socketed and is fixed on the step of valve pipe 10 upper end.
The upper end of catch 51 is fixed with adjustment seat 60, and the inwall of adjustment seat 60 is worm structure, is provided with adjusting nut 62 in it, and this adjusting nut 62 coordinates with the worm structure of adjustment seat 60 inwall, can moving axially along adjustment seat 60.
This pressure regulator valve also comprises Regulation spring 61, and this Regulation spring 61 is plugged in bellows 50, and its one end is connected to the lower end of adjusting nut 62, and its other end is connected to the top of valve rod 40.
Bellows 50 is scalable, and adjusting nut 62, by moving up and down with the screw-thread fit of adjustment seat 60, regulates the pretightening force of Regulation spring 61, thus regulates the pretightening force of bellows 50, and then regulates the preset pressure of pressure regulator valve.Obviously, adjusting nut 62 moves, described preset pressure reduces, otherwise adjusting nut 62 moves down, and described preset pressure increases.
Under the differential pressure action of preset pressure and import 10a place pressure, valve rod 40 can move up and down, thus drives valve plate 30 to move up and down the valve port opened or close valve seat 20, to regulate the conducting relation of import 10a and outlet 10b.
When import 10a place pressure is less than the preset pressure of pressure regulator valve, the valve plate body 31 of valve plate 30 and the valve port gluing, sealing of valve seat 20; When import 10a place pressure is greater than described preset pressure, promote valve rod 40 moves, compress bellows 50, drive valve plate 30 to move to be separated with valve port and realize valve opening.
The top of adjustment seat 60 is also provided with end cap 63, with the opening on shutoff adjustment seat 60 top.Further, between end cap 63 and adjustment seat 60, be also provided with sealed member 72, prevent moisture from entering valve member inside, erosion is caused to component such as Regulation spring 61 grade.
Wherein, after valve port is opened, the size of the outlet pressure of pressure regulator valve affects the aperture of valve port, when designing, usually makes effective lifting surface area of bellows 50 equal with effective lifting surface area of valve plate 30.
As above design, the valve plate 30 that the utility model provides is provided with the valve plate guide portion 32 axially stretched out along valve plate body 31, this valve plate guide portion 32 is plugged in valve seat 20, thus, when valve plate 30 moves axially along valve pipe 10 under the drive of valve rod 40, by the restriction of valve plate guide portion 32, valve plate body 31 and valve port are in plumbness, even if valve rod 40 affects deflection by external force, valve plate body 31 is under the restriction of valve plate guide portion 32, also can keep vertical with valve port, thus valve plate body 31 can with valve port gluing, sealing, effective close port, the reliability of product is higher.
Obviously, in order to make valve plate 30 when moving up and down, valve plate body 31 is all the time by the leading role of valve plate guide portion 32, and the length of valve plate guide portion 32 should meet following condition: when valve port is in full-gear, and valve plate guide portion 32 still can be plugged in valve seat 20.As above design, valve plate 30 can be avoided to move up and down in process, and valve plate guide portion 32 departs from valve port, cannot realize guiding.
Further, the through hole that valve rod 40 coordinates with valve plate body 31 is manhole.
So, when valve rod 40 is because of external force generation deflection, valve plate body 31 can rotate relative to valve rod 40 circumference, makes adjustment, and under the restriction of valve plate guide portion 32, keeps, with the plumbness of valve port, guaranteeing the validity that valve port is closed.
Further, valve rod 40 comprises large-diameter portion 41 and is positioned at the minor diameter part 42 of large-diameter portion 41 lower end, and valve plate 30 is sheathed on minor diameter part 42.
So, valve plate 30 is subject to the restriction of the valve port end face of large-diameter portion 41 lower end surface and valve seat 20 in the axial direction, valve plate 30 can be avoided along valve rod 40 axial float, affect the closedown of valve port.
Further, Sealing 71 is provided with between valve rod 40 and valve plate 30.
Particularly, Sealing 71 is arranged between valve rod 40 and valve plate body 31, so, can avoid leaking between valve rod 40 and valve plate body 31.
Further, the bottom of large-diameter portion 41 offers groove, and the upper end of Sealing 71 is placed in this groove.
Design like this, can prevent Sealing 71 in use aging due to excessive compression.
Further, the diameter of the manhole of valve plate body 31 is less than the external diameter of large-diameter portion 41.
Design like this, can prevent Sealing 71 in working procedure be squeezed and deviate from, affect coordinating between valve rod 40 with valve plate 30.
In concrete scheme, Sealing 71 can be set to up big and down small structure, as shown in Figure 2, the cross section of Sealing 71 is roughly T-shaped, the larger part in top is suitable with the groove of the large-diameter portion 41 of valve rod 40, and the periphery wall of the part that bottom is less coordinates with the inner circle wall of the through hole of valve plate body 31.
Please also refer to Fig. 7-8; Fig. 7 provides by the utility model the sectional drawing of the first embodiment of the valve seat of pressure regulator valve; Fig. 8 is the worm's eye view of Fig. 7.
Further, the lower end of valve seat 20 offers pilot hole 20c, and the lower end of valve rod 40 is through this pilot hole 20c; That is, valve rod 40 is through the pilot hole 20c also through valve seat 20 lower end after valve plate 30.
So, valve rod 40 moves up and down in process, is subject to the leading role of pilot hole 20c, the vertical of valve rod 40 and valve port can be guaranteed, avoid valve rod 40 by external force deflection, thus avoid because valve rod 40 deflection causes the deflection of valve plate 30, the gluing, sealing of valve plate 30 and valve port can be guaranteed further.
In concrete scheme, as shown in Figure 7, the lower end of valve seat 20 has base, offers the pilot hole 20c coordinated with valve rod 40 in the middle part of it, and in order to ensure being communicated with of valve support chamber 20a and import 10a, base offers communication port 20b.As shown in Figure 8, communication port 20b is circular port, and is uniformly distributed circumferentially; Obviously, the number of communication port 20b, shape and setting type are not limited to shown in figure, as long as can be communicated with the import 10a of valve support chamber 20a and valve pipe 10.Certainly, preferably make communication port 20b circumferentially be evenly arranged, so can make the uniform force of valve seat 20.
Further, the bottom of valve rod 40 is provided with bounding means, moves axially distance with what limit valve rod.
In concrete scheme, bounding means is stop nut 44, and with the bottom screw-thread fit of valve rod 40, after valve rod 40 moves to certain distance, stop nut 44 can engage with the base of valve seat 20, avoid valve rod 40 excessively on move.
Be appreciated that moving axially distance and should guaranteeing opening completely of valve port of valve rod 40.
Certainly, bounding means is not limited to stop nut 44, can also be set to the parts that other can interfere with the base of valve seat 20.
Further, valve rod 40 is also arranged with damping spring 43, one end of this damping spring 43 abuts the lower end surface of valve plate body 31, and the other end abuts the lower end surface of valve support chamber 20a, i.e. the upper-end surface of the base of valve seat 20.Design like this, can make the stable action of valve rod 40.
In concrete scheme, valve seat 20 can be integral type structure, and as shown in Figures 7 and 8, body and the base of valve seat 20 are structure as a whole.
Certainly, valve seat also can be set to split-type structural.Can refer to Fig. 9-10 to understand, Fig. 9 provides by the utility model the generalized section of the second embodiment of the valve seat of pressure regulator valve; Figure 10 is the worm's eye view of Fig. 9.
In the program, the body of valve seat 20 ' and base are Split type structure, and wherein, body has valve support chamber 20 ' a, and pilot hole 20 ' c is offered at the middle part of base, and offers opening 20 ' b, and body and base are fixed by riveting, welding or other modes.
The valve seat 20 ' of Split type structure, is convenient to processing, as its opening 20 ' b can adopt the mode of punching press to process, not only convenient but also reliable.The valve seat 20 of integral structure is when processing opening 20b and pilot hole 20c, higher to the requirement of cutter.
Understand the working principle of pressure regulator valve for convenience, illustrate with pressure regulator valve and supporting the use of heating power expansion valve Examples below.
During application, pressure regulator valve is arranged at after vaporizer, and namely the entrance of pressure regulator valve connects evaporator outlet, and that is, the inlet pressure of pressure regulator valve equals the outlet pressure of vaporizer.
According to actual needs, regulate the preset pressure of pressure regulator valve by adjustment adjusting nut 62, this sentences preset pressure be 2bar is example explanation.
When air-conditioning quilt is opened, when the refrigerant pressure of evaporator outlet is higher than 2bar, valve rod 40 is pushed and moves under the effect of pressure reduction, and drive valve plate 30 moves and opens valve port, refrigeration agent, from the import 10a of pressure regulator valve, flows through valve port, flows out from outlet 10b; Because effective lifting surface area of bellows 50 is equal with effective lifting surface area of valve plate 30, so the fluctuation of pressure regulator valve outlet pressure can not affect the aperture of valve port.
Along with the operation of air-conditioning, room temperature reaches setting requirement, now, the aperture of heating power expansion valve reduces, and the refrigeration agent flowing through vaporizer reduces, and the outlet pressure of vaporizer reduces, when pressure is lower than 2bar, valve rod 40 is pushed and moves down under the effect of pressure reduction, drives valve plate 30 to move down close port, now, still have refrigeration agent to flow out in vaporizer, along with the accumulation of refrigeration agent, the pressure of pressure regulator valve ingress increases, when again higher than 2bar, the valve port of pressure regulator valve is opened again.
Due to the setting of pressure regulator valve, when the refrigeration agent flowing through vaporizer reduces, the circulation between vaporizer and heating power expansion valve is cut off, and avoids, because very few flow of refrigerant is through heating power expansion valve, causing damage to heating power expansion valve.
Above pressure regulator valve provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and mode of execution, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (9)
1. pressure regulator valve, comprises valve pipe, has the valve seat of valve port, valve plate and valve rod; Described valve seat is fixedly arranged in described valve pipe; Described valve rod through described valve plate, and can drive described valve plate along described valve pipe move axially open or close described valve port;
It is characterized in that, described valve plate comprises can with the valve plate body of described valve port gluing, sealing with along described valve plate body shaft to the valve plate guide portion stretched out; Described valve plate guide portion is plugged in described valve seat, and the perisporium of described valve plate guide portion offers the connecting port of through valve support chamber.
2. pressure regulator valve according to claim 1, is characterized in that, the through hole that described valve plate coordinates with described valve rod is manhole.
3. pressure regulator valve according to claim 2, is characterized in that, described valve rod comprises large-diameter portion and is positioned at the minor diameter part of described large-diameter portion lower end, and described valve plate is sheathed on described minor diameter part.
4. pressure regulator valve according to claim 3, is characterized in that, is provided with Sealing between described minor diameter part and described valve plate.
5. pressure regulator valve according to claim 4, is characterized in that, the bottom of described large-diameter portion offers groove, and the upper end of described Sealing is placed in described groove.
6. pressure regulator valve according to claim 4, is characterized in that, the diameter of the manhole of described valve plate is less than the external diameter of described large-diameter portion.
7. pressure regulator valve according to claim 1, is characterized in that, the lower end of described valve seat offers pilot hole; The lower end of described valve rod is through described pilot hole.
8. pressure regulator valve according to claim 7, is characterized in that, the bottom of described valve rod is provided with bounding means, moves axially distance with what limit described valve rod.
9. pressure regulator valve according to claim 7, is characterized in that, also comprises the damping spring being sheathed on described valve rod, and its one end abuts the lower end surface of described valve plate body, and its other end abuts the lower end surface of described valve support chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660263.0U CN204201205U (en) | 2014-11-06 | 2014-11-06 | Pressure regulator valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660263.0U CN204201205U (en) | 2014-11-06 | 2014-11-06 | Pressure regulator valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201205U true CN204201205U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420660263.0U Active CN204201205U (en) | 2014-11-06 | 2014-11-06 | Pressure regulator valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201205U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092542A (en) * | 2016-06-27 | 2016-11-09 | 盛瑞传动股份有限公司 | Valve board checking device |
| CN107178936A (en) * | 2017-05-15 | 2017-09-19 | 上海奉申制冷控制器股份有限公司 | A kind of expansion valve |
| CN107763265A (en) * | 2016-08-23 | 2018-03-06 | 浙江三花制冷集团有限公司 | Pressure-regulating valve |
| CN111022736A (en) * | 2019-12-20 | 2020-04-17 | 广州朗达电子设备有限公司 | Evaporating pressure regulating valve capable of electrically regulating pressure |
| JP2022016894A (en) * | 2020-07-13 | 2022-01-25 | 株式会社鷺宮製作所 | Pressure regulating valve |
-
2014
- 2014-11-06 CN CN201420660263.0U patent/CN204201205U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092542A (en) * | 2016-06-27 | 2016-11-09 | 盛瑞传动股份有限公司 | Valve board checking device |
| CN107763265A (en) * | 2016-08-23 | 2018-03-06 | 浙江三花制冷集团有限公司 | Pressure-regulating valve |
| CN107763265B (en) * | 2016-08-23 | 2019-11-12 | 浙江三花制冷集团有限公司 | Pressure-regulating valve |
| CN107178936A (en) * | 2017-05-15 | 2017-09-19 | 上海奉申制冷控制器股份有限公司 | A kind of expansion valve |
| CN111022736A (en) * | 2019-12-20 | 2020-04-17 | 广州朗达电子设备有限公司 | Evaporating pressure regulating valve capable of electrically regulating pressure |
| CN111022736B (en) * | 2019-12-20 | 2022-04-22 | 广州朗达电子设备有限公司 | Evaporating pressure regulating valve capable of electrically regulating pressure |
| JP2022016894A (en) * | 2020-07-13 | 2022-01-25 | 株式会社鷺宮製作所 | Pressure regulating valve |
| JP7431118B2 (en) | 2020-07-13 | 2024-02-14 | 株式会社鷺宮製作所 | pressure regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170208 Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Patentee after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Patentee before: ZHEJIANG SANHUA Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20220822 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: Xia Li Quan, Chengguan Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |