CN211901715U - Double-gas-source pressure stabilizing valve and thermostat - Google Patents
Double-gas-source pressure stabilizing valve and thermostat Download PDFInfo
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- CN211901715U CN211901715U CN202020205545.7U CN202020205545U CN211901715U CN 211901715 U CN211901715 U CN 211901715U CN 202020205545 U CN202020205545 U CN 202020205545U CN 211901715 U CN211901715 U CN 211901715U
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Abstract
The utility model discloses a two air supply surge damping valves, include: the valve body comprises an upper valve body and a lower valve body; the diaphragm assembly divides the valve body into an upper chamber and a lower chamber, and the chamber surrounded by the diaphragm assembly and the lower valve body comprises an air inlet channel and an air outlet channel; the pressure regulating rod is slidably arranged in the upper valve body in a penetrating manner, and a transmission part is arranged at one end far away from the diaphragm assembly and can be driven by external force to drive the pressure regulating rod to slide; the first pressure spring is sleeved on the pressure regulating rod, and the pressure regulating rod can act on the diaphragm assembly under the driving of the elastic force of the first pressure spring; the second pressure spring is sleeved on the first pressure spring and acts on the diaphragm assembly; the air inlet channel is arranged on the air inlet side of the core shaft, the air outlet channel is arranged on the air inlet side of the core shaft, and the air outlet channel is arranged on the air inlet side of the core shaft. The quantity of the springs acting on the diaphragm assembly is changed to adapt to air pressure required by different air sources during combustion, so that output pressure can be adjusted according to different air sources.
Description
Technical Field
The utility model relates to a gas equipment field, in particular to two air supply surge damping valves and thermostat.
Background
At present, gas devices on the market all adopt a fixed gas mode, such as a liquefied gas mode, a natural gas mode or an artificial gas mode, and because the gas pressures required by different gas sources during combustion are different, the gas devices need different configurations and factory settings, so that a manufacturing factory needs to repeatedly deal with different types of gas sources, the production difficulty is high, the scheduling is difficult, and disputes are caused because customers often make purchasing errors because the customers do not know the requirements of the gas sources and the types of gas sources, which is a great trouble and a difficult problem for both the merchants and the customers.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a two air supply surge damping valves can adjust output pressure according to the difference of air supply.
The utility model discloses still provide a thermostat with above-mentioned two air supply surge damping valves.
According to the utility model discloses a two air supply surge damping valves of first aspect embodiment, include: the valve body comprises an upper valve body and a lower valve body; the diaphragm assembly is clamped between the upper valve body and the lower valve body and divides the valve body into an upper cavity and a lower cavity, and the cavity surrounded by the diaphragm assembly and the lower valve body comprises an air inlet channel and an air outlet channel; the pressure regulating rod is slidably arranged in the upper valve body in a penetrating mode and can abut against the diaphragm assembly, a transmission part is arranged at one end, far away from the diaphragm assembly, of the pressure regulating rod, and the transmission part can drive the pressure regulating rod to slide towards the direction far away from the diaphragm assembly when being driven by external force; the first pressure spring is sleeved on the pressure adjusting rod, a first abutting part is arranged on the upper valve body, a second abutting part is arranged on the pressure adjusting rod, one end of the first pressure spring abuts against the first abutting part, the other end of the first pressure spring abuts against the second abutting part, and the pressure adjusting rod can act on the diaphragm assembly under the driving of the elastic force of the first pressure spring; the second pressure spring is sleeved on the first pressure spring, one end of the second pressure spring is abutted against the first abutting part, and the other end of the second pressure spring is abutted against the diaphragm assembly; the air inlet channel is arranged on the diaphragm assembly, the air outlet channel is arranged on the diaphragm assembly, the air inlet channel is arranged on the diaphragm assembly, the air outlet channel is arranged on the air outlet channel, the air outlet channel is arranged on the air inlet channel, the air outlet channel is arranged on the air outlet channel, the air outlet channel.
According to the utility model discloses two air supply surge damping valves have following beneficial effect at least: when the transmission part is not driven by external force, the pressure adjusting rod is driven by the elastic force of the first pressure spring to act on the diaphragm assembly, meanwhile, the elastic force of the second pressure spring also acts on the diaphragm assembly, at the moment, the state of using liquefied petroleum gas is realized, and when the transmission part is driven by external force, the pressure adjusting rod is driven by the transmission part to be away from the diaphragm assembly, so that only the second pressure spring acts on the diaphragm assembly, at the moment, the state of using natural gas is realized, and the magnitude of acting force on the diaphragm assembly is changed by changing the number of the pressure springs acting on the diaphragm assembly, so that the required air pressure is adapted to combustion of different air sources, and the output pressure can be adjusted according to different air sources.
According to some embodiments of the utility model, the pressure regulating pole is kept away from the one end slidable ground of diaphragm subassembly is inserted and is located in the driving medium, just the pressure regulating pole with be equipped with the linkage subassembly between the driving medium, make can drive when the driving medium receives external force drive the pressure regulating pole orientation is kept away from the direction of diaphragm subassembly slides. And the transmission relation between the pressure regulating rod and the transmission part is realized through the linkage assembly.
According to some embodiments of the utility model, the linkage subassembly including set up in bar through-hole on the driving medium and wear to locate the pressure regulating pole is kept away from the round pin axle of the one end of diaphragm subassembly, the round pin axle with bar through-hole sliding connection. The round pin axle with the sliding fit of bar through-hole makes the pressure regulating pole has a stroke that can fluctuate from top to bottom, thereby adapts to the fluctuation that the diaphragm subassembly produced in the course of the work, through the round pin axle with the cooperation of bar through-hole realizes the pressure regulating pole with transmission relation between the driving medium, and above-mentioned structure is convenient for install and dismantle, is convenient for produce assembly and after-sales maintenance.
According to some embodiments of the invention, the first abutting portion is an adjusting knob, the adjusting knob and the upper valve body are in threaded connection. The adjusting knob can be adjusted by rotation to adjust the compression amount of the first pressure spring and the second pressure spring, thereby adjusting the acting force acting on the diaphragm assembly.
According to some embodiments of the present invention, the second abutting portion is sleeved on the pressure adjusting rod and is connected to the pressure adjusting rod by a screw. The second abutting portion can be rotationally adjusted to adjust the amount of compression of the first pressure spring, thereby adjusting the acting force acting on the diaphragm assembly.
According to the utility model discloses a some embodiments, the edge of second butt portion is equipped with first limit baffle, is favorable to preventing first pressure spring drunkenness or emergence skew have improved the stability of two air supply surge damping valves work.
According to the utility model discloses a some embodiments, the diaphragm subassembly with be equipped with the bearing board between the second compression spring, second compression spring keeps away from the one end butt of first butt portion in on the bearing board, avoided second compression spring direct action in on the diaphragm subassembly, avoided simultaneously the pressure regulating pole direct action in on the diaphragm subassembly, increased the atress area of diaphragm subassembly is favorable to reducing stress concentration to life and reliability have been increased.
According to the utility model discloses a some embodiments, the edge of bearing board is equipped with second limit baffle, is favorable to preventing second pressure spring drunkenness or emergence skew have improved the stability of two air supply surge damping valves work.
According to some embodiments of the utility model, the upper end of dabber runs through in proper order the diaphragm subassembly with the bearing board, the upper end of dabber be equipped with set up the structure and with the diaphragm subassembly and the bearing board is set up, set up the structure and can be riveted structure or helicitic texture isotructure, do not limit here, just the upper end of dabber is equipped with the toper draw-in groove. When the state of using the natural gas is switched to the state of using the liquefied petroleum gas, the pressure regulating rod slides downwards under the driving of the elastic force of the first pressure spring, the lower end of the pressure regulating rod can slide into the conical clamping groove under the guiding action of the inner wall of the conical clamping groove, so that the lower end of the pressure regulating rod can accurately act on the middle part of the diaphragm assembly, and the conical clamping groove can prevent the lower end of the pressure regulating rod from deviating in the working process.
According to the utility model discloses a thermostat of second aspect embodiment, it includes according to the utility model discloses above-mentioned first aspect embodiment's double-air-source surge damping valve.
According to the utility model discloses thermostat has following beneficial effect at least: when the transmission part is not driven by external force, the pressure adjusting rod is driven by the elastic force of the first pressure spring to act on the diaphragm assembly, meanwhile, the elastic force of the second pressure spring also acts on the diaphragm assembly, at the moment, the state of using liquefied petroleum gas is realized, and when the transmission part is driven by external force, the pressure adjusting rod is driven by the transmission part to be away from the diaphragm assembly, so that only the second pressure spring acts on the diaphragm assembly, at the moment, the state of using natural gas is realized, and the magnitude of acting force on the diaphragm assembly is changed by changing the number of the pressure springs acting on the diaphragm assembly, so that the required air pressure is adapted to combustion of different air sources, and the output pressure can be adjusted according to different air sources.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a first schematic cross-sectional view of an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
fig. 5 is a schematic cross-sectional view of the embodiment of the present invention.
Reference numerals:
the valve body 10, the upper valve body 11, the first abutting portion 111, the lower valve body 12, the air inlet passage 121, the air outlet passage 122, and the vent hole 123;
a diaphragm assembly 20;
the pressure regulating rod 30, the second abutting part 31, the first limit baffle 311 and the pin shaft 32;
a transmission member 40, a strip-shaped through hole 41;
a first pressure spring 50;
the second pressure spring 60;
a mandrel 70, an adjusting bolt 71 and a conical clamping groove 72;
a bearing plate 80 and a second limit baffle 81.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that if an orientation description is referred to, for example, the directions or positional relationships indicated by the upper, lower, front, rear, left, right, etc. are the directions or positional relationships shown on the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are several, greater than, less than, exceeding, above, below, within, etc., the terms, wherein several means are one or more, and several means are two or more, and greater than, less than, exceeding, etc. are understood as not including the number, and above, below, within, etc. are understood as including the number.
In the description of the present invention, if the terms first, second, etc. appear, they are only used for distinguishing technical features, but they are not to be interpreted as indicating or implying relative importance or implying that the number of the indicated technical features is indicated or that the precedence of the indicated technical features is implied.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and 3, the dual-gas-source pressure stabilizing valve according to the embodiment of the present invention includes a valve body 10, a diaphragm assembly 20, a pressure regulating rod 30, a first pressure spring 50, a second pressure spring 60, and a mandrel 70.
The valve body 10 comprises an upper valve body 11 and a lower valve body 12, the diaphragm assembly 20 is clamped between the upper valve body 11 and the lower valve body 12 and divides the valve body 10 into an upper chamber and a lower chamber, the chamber enclosed by the diaphragm assembly 20 and the lower valve body 12 comprises an air inlet channel 121 and an air outlet channel 122, the pressure regulating rod 30 slidably penetrates through the upper valve body 11 and can be abutted against the diaphragm assembly 20, a transmission part 40 is arranged at one end of the pressure regulating rod 30 far away from the diaphragm assembly 20, the transmission part 40 can drive the pressure regulating rod 30 to slide towards the direction far away from the diaphragm assembly 20 when being driven by external force, the first pressure spring 50 is sleeved on the pressure regulating rod 30, a first abutting part 111 is arranged on the upper valve body 11, a second abutting part 31 is arranged on the pressure regulating rod 30, one end of the first pressure spring 50 abuts against the first abutting part 111, the other end abuts against the second abutting part 31, the pressure regulating rod 30 can act on the diaphragm assembly 20 under, the second pressure spring 60 is sleeved on the first pressure spring 50, one end of the second pressure spring 60 abuts against the first abutting portion 111, the other end of the second pressure spring abuts against the diaphragm assembly 20, a vent hole 123 is arranged between the air inlet channel 121 and the air outlet channel 122, the core shaft 70 slidably penetrates through the vent hole 123, one end of the core shaft 70 is connected to the diaphragm assembly 20, the other end of the core shaft 70 is provided with an adjusting bolt 71 which can be matched with the vent hole 123 to adjust the ventilation amount, and an inclined arc surface is arranged on the adjusting bolt 71 corresponding to the vent hole 123, so that the ventilation amount can be adjusted when the adjusting bolt 71 is close to or far away from.
When driving medium 40 does not receive external force drive, pressure regulating rod 30 acts on diaphragm assembly 20 under the driving of the elastic force of first pressure spring 50, simultaneously the elastic force of second pressure spring 60 also acts on diaphragm assembly 20, be the state of using liquefied petroleum gas this moment, when driving medium 40 receives external force drive, pressure regulating rod 30 keeps away from diaphragm assembly 20 under driving of driving medium 40, make only second pressure spring 60 act on diaphragm assembly 20, be the state of using the natural gas this moment, through the quantity of the pressure spring that changes the action on diaphragm assembly 20, change the size of the effort that acts on diaphragm assembly 20 promptly, required atmospheric pressure when adapting to different air supplies burning, thereby can adjust output pressure according to the difference of air supply. It should be noted that the transmission member 40 may be driven by a pull rope, or the transmission member 40 may be driven by a self-locking button structure, a driving motor, a cylinder assembly, or other structures, which is not limited herein.
Referring to fig. 3 and 5, in some embodiments, one end of the pressure regulating rod 30 away from the diaphragm assembly 20 is slidably inserted into the transmission member 40, and a linkage assembly is disposed between the pressure regulating rod 30 and the transmission member 40, so that the transmission member 40 can drive the pressure regulating rod 30 to slide in a direction away from the diaphragm assembly 20 when driven by an external force. The driving relationship between the pressure regulating lever 30 and the driving member 40 is achieved by a linkage assembly.
Referring to fig. 1, 3 and 5, in some embodiments, the linkage assembly includes a through bar-shaped hole 41 disposed on the transmission member 40 and a pin 32 disposed through an end of the pressure-adjusting rod 30 away from the diaphragm assembly 20, wherein the pin 32 is slidably connected to the through bar-shaped hole 41. The sliding fit of the pin shaft 32 and the strip-shaped through hole 41 enables the pressure regulating rod 30 to have a stroke capable of fluctuating up and down, so that the fluctuation generated in the working process of the membrane assembly 20 is adapted, the transmission relation between the pressure regulating rod 30 and the transmission part 40 is realized through the fit of the pin shaft 32 and the strip-shaped through hole 41, and the structure is convenient to mount and dismount and convenient to produce, assemble and maintain after sale.
It should be noted that, in some embodiments, the linkage assembly may further be a strip-shaped through hole formed in one end of the pressure regulating rod away from the diaphragm assembly and a pin shaft penetrating through the transmission member, which is not limited herein.
Referring to fig. 3 and 5, in some of these embodiments, the first abutment 111 is an adjustment knob, which is threaded with the upper valve body 11. The amount of compression of the first and second pressure springs 50 and 60 can be adjusted by rotating the adjustment knob to adjust the force acting on the diaphragm assembly 20.
Referring to fig. 3 to 5, in some embodiments, the second abutting portion 31 is sleeved on the pressure adjusting rod 30 and is screwed with the pressure adjusting rod 30. The second abutting portion 31 can be rotationally adjusted to adjust the amount of compression of the first pressure spring 50, thereby adjusting the acting force acting on the diaphragm assembly 20.
Referring to fig. 4, in some embodiments, the edge of the second abutting portion 31 is provided with a first limit baffle 311, which is beneficial to preventing the first pressure spring 50 from shifting or deviating, and improves the stability of the operation of the dual-gas-source pressure stabilizing valve.
Referring to fig. 4, in some embodiments, a supporting plate 80 is disposed between the diaphragm assembly 20 and the second pressure spring 60, and one end of the second pressure spring 60, which is far away from the first abutting portion 111, abuts against the supporting plate 80, so that the second pressure spring 60 is prevented from directly acting on the diaphragm assembly 20, and the pressure regulating rod 30 is prevented from directly acting on the diaphragm assembly 20, thereby increasing the stressed area of the diaphragm assembly 20, facilitating to reduce stress concentration, and increasing the service life and reliability.
Referring to fig. 4, in some embodiments, a second limit baffle 81 is disposed at an edge of the supporting plate 80, which is beneficial to preventing the second pressure spring 60 from shifting or deviating, and improves the stability of the operation of the dual-air-source pressure stabilizing valve.
Referring to fig. 3 to 5, in some embodiments, the upper end of the mandrel 70 sequentially penetrates through the diaphragm assembly 20 and the support plate 80, the upper end of the mandrel 70 is provided with a fastening structure, which may be a riveting structure or a screw structure, and the like, and is not limited thereto, and the upper end of the mandrel 70 is provided with a tapered slot 72. When the state of using the natural gas is switched to the state of using the liquefied petroleum gas, the pressure regulating rod 30 slides downwards under the driving of the elastic force of the first pressure spring 50, the lower end of the pressure regulating rod 30 can slide into the conical clamping groove 72 under the guiding action of the inner wall of the conical clamping groove 72, so that the lower end of the pressure regulating rod 30 can accurately act on the middle part of the diaphragm assembly 20, and the conical clamping groove 72 can prevent the lower end of the pressure regulating rod 30 from deviating in the working process.
According to the utility model discloses the thermostat, it includes foretell two air supply surge damping valves.
When driving medium 40 does not receive external force drive, pressure regulating rod 30 acts on diaphragm assembly 20 under the driving of the elastic force of first pressure spring 50, simultaneously the elastic force of second pressure spring 60 also acts on diaphragm assembly 20, be the state of using liquefied petroleum gas this moment, when driving medium 40 receives external force drive, pressure regulating rod 30 keeps away from diaphragm assembly 20 under driving of driving medium 40, make only second pressure spring 60 act on diaphragm assembly 20, be the state of using the natural gas this moment, through the quantity of the pressure spring that changes the action on diaphragm assembly 20, change the size of the effort that acts on diaphragm assembly 20 promptly, required atmospheric pressure when adapting to different air supplies burning, thereby can adjust output pressure according to the difference of air supply.
In the description of the present specification, if reference is made to the description of "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", and "some examples", etc., it is intended that a particular feature, structure, material, or characteristic described in connection with the embodiment or example be included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A dual gas source pressure maintaining valve, comprising:
the valve body (10), the valve body (10) includes an upper valve body (11) and a lower valve body (12);
the diaphragm assembly (20) is clamped between the upper valve body (11) and the lower valve body (12) and divides the valve body (10) into an upper chamber and a lower chamber, and the chamber surrounded by the diaphragm assembly (20) and the lower valve body (12) comprises an air inlet channel (121) and an air outlet channel (122);
the pressure regulating rod (30) is slidably arranged in the upper valve body (11) in a penetrating manner, a transmission part (40) is arranged at one end, far away from the diaphragm assembly (20), of the pressure regulating rod (30), and the transmission part (40) can drive the pressure regulating rod (30) to slide towards the direction far away from the diaphragm assembly (20) when driven by external force;
the first pressure spring (50) is sleeved on the pressure adjusting rod (30), a first abutting part (111) is arranged on the upper valve body (11), a second abutting part (31) is arranged on the pressure adjusting rod (30), one end of the first pressure spring (50) abuts against the first abutting part (111), the other end of the first pressure spring (50) abuts against the second abutting part (31), and the pressure adjusting rod (30) can act on the diaphragm assembly (20) under the driving of the elastic force of the first pressure spring (50);
the second pressure spring (60) is sleeved on the first pressure spring (50), one end of the second pressure spring (60) abuts against the first abutting part (111), and the other end of the second pressure spring (60) abuts against the diaphragm assembly (20);
the air inlet channel (121) and the air outlet channel (122) are provided with a vent hole (123) therebetween, the mandrel (70) is slidably arranged in the vent hole (123), one end of the mandrel (70) is connected to the diaphragm assembly (20), and the other end of the mandrel is provided with an adjusting bolt (71) which can be matched with the vent hole (123) to adjust the ventilation amount.
2. The dual-gas-source pressure stabilizing valve as claimed in claim 1, wherein one end of the pressure regulating rod (30) far away from the diaphragm assembly (20) is slidably inserted into the transmission member (40), and a linkage assembly is arranged between the pressure regulating rod (30) and the transmission member (40), so that the transmission member (40) can drive the pressure regulating rod (30) to slide towards a direction far away from the diaphragm assembly (20) when driven by external force.
3. The dual-gas-source pressure stabilizing valve as claimed in claim 2, wherein the linkage assembly comprises a strip-shaped through hole (41) arranged on the transmission member (40) and a pin shaft (32) arranged at one end of the pressure regulating rod (30) far away from the diaphragm assembly (20), and the pin shaft (32) is connected with the strip-shaped through hole (41) in a sliding manner.
4. The dual source regulator valve according to claim 1, wherein said first abutment (111) is an adjustment knob, said adjustment knob being threadably connected to said upper valve body (11).
5. The dual source regulator valve according to claim 1, wherein the second abutting portion (31) is sleeved on the pressure regulating rod (30) and is in threaded connection with the pressure regulating rod (30).
6. The dual source regulator valve according to claim 1, wherein the edge of the second abutment (31) is provided with a first limit stop (311).
7. The dual gas supply regulator valve according to claim 1, wherein a support plate (80) is disposed between the diaphragm assembly (20) and the second pressure spring (60), and an end of the second pressure spring (60) away from the first abutting portion (111) abuts against the support plate (80).
8. The dual gas supply regulator valve as defined in claim 7 wherein the edge of the support plate (80) is provided with a second limit stop (81).
9. The dual gas supply regulator valve according to claim 7, wherein the upper end of the mandrel (70) sequentially penetrates through the diaphragm assembly (20) and the support plate (80), the upper end of the mandrel (70) is provided with a fastening structure and is fastened with the diaphragm assembly (20) and the support plate (80), and the upper end of the mandrel (70) is provided with a tapered clamping groove (72).
10. A thermostat comprising a dual gas supply pressure maintaining valve as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020205545.7U CN211901715U (en) | 2020-02-25 | 2020-02-25 | Double-gas-source pressure stabilizing valve and thermostat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020205545.7U CN211901715U (en) | 2020-02-25 | 2020-02-25 | Double-gas-source pressure stabilizing valve and thermostat |
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| Publication Number | Publication Date |
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| CN211901715U true CN211901715U (en) | 2020-11-10 |
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| CN202020205545.7U Active CN211901715U (en) | 2020-02-25 | 2020-02-25 | Double-gas-source pressure stabilizing valve and thermostat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111248795A (en) * | 2020-03-15 | 2020-06-09 | 西北工业大学 | Pressure-stabilizing temperature-equalizing self-suction shower |
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2020
- 2020-02-25 CN CN202020205545.7U patent/CN211901715U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111248795A (en) * | 2020-03-15 | 2020-06-09 | 西北工业大学 | Pressure-stabilizing temperature-equalizing self-suction shower |
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