CN116576271A - Pressure reducing switching valve - Google Patents
Pressure reducing switching valve Download PDFInfo
- Publication number
- CN116576271A CN116576271A CN202310848681.6A CN202310848681A CN116576271A CN 116576271 A CN116576271 A CN 116576271A CN 202310848681 A CN202310848681 A CN 202310848681A CN 116576271 A CN116576271 A CN 116576271A
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- China
- Prior art keywords
- flow passage
- pressure reducing
- cavity
- sleeve
- valve core
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- 230000001603 reducing effect Effects 0.000 title claims abstract description 51
- 230000006837 decompression Effects 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 238000013016 damping Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The application specifically discloses a pressure reducing switching valve which comprises a valve body and a valve core, wherein the valve core is arranged in the valve body in a sliding manner, a first inlet flow passage, a second inlet flow passage and a first outlet flow passage are arranged on the valve body, a main flow passage is arranged in the valve core along the radial direction, a pressure reducing limiting assembly is arranged in the main flow passage, the pressure reducing limiting assembly comprises a sleeve, a third elastic piece, a limiting nut and a pressure reducing column, the end part of the sleeve can extend into the first outlet flow passage, and the pressure reducing column is arranged in the sleeve and used for reducing the pressure of fluid. The pressure reducing limiting assembly can realize the pressure reduction of gas fluid, simplifies the valve structure, can automatically lock after the valve core moves to the working position, prevents misoperation, and improves the safety of gas using equipment; the decompression post can be detachable to be changed, and the decompression effect of fluid can be conveniently adjusted, and the pressure difference at two ends of the sleeve can be increased, so that the sleeve can be moved under the pressure difference.
Description
Technical Field
The application relates to the technical field of valve products, in particular to a pressure reducing switching valve.
Background
Valve-like elements are automated basic elements used to control fluids, typically for adjusting the direction, flow, velocity, and other parameters of a medium in an industrial control system. In industrial control systems, pneumatic switching valves are very important and common control elements for controlling gaseous media to meet relevant operating requirements. However, in industrial automation machines, a large number of valves are often required to perform fluid control, so that complex operations are realized, and in various operations, different types of operations have strict sequence and cannot be performed simultaneously, once misoperation occurs, operation of equipment is easy to fail, and even safety accidents occur.
Meanwhile, in the same pneumatic system, the gas pressures required by different pneumatic elements may be different, and when a high-pressure medium is conveyed into a low-pressure element, a separate pressure reducing valve is required to be adopted to reduce the pressure of the high-pressure medium, so that the pneumatic system has a complex structure, high installation difficulty and high cost.
Disclosure of Invention
The application aims to solve the problems of complex structure, high safety risk, high installation difficulty and the like of valve products in the prior art, and provides a pressure reducing switching valve.
In order to achieve the above object, according to a first aspect of the present application, there is provided a pressure reducing switching valve, including a valve body and a valve core, wherein the valve core is slidably disposed in the valve body, one side of the valve body is provided with a first inlet flow channel and a second inlet flow channel, the other side of the valve body is provided with a first outlet flow channel, the valve core is radially provided with a main flow channel, the left end of the valve core is provided with a first cavity, a first elastic component is disposed in the first cavity, the right end of the valve core is provided with a second cavity, the second cavity is disposed in the second cavity and is communicated with the first outlet flow channel through a first bypass flow channel, the second cavity is communicated with the second outlet flow channel through a second bypass flow channel, the outlet end of the main flow channel is provided with an annular mounting groove, one end of the mounting groove is provided with a step, the other end of the mounting groove extends to a port of the main flow channel, the mounting groove is internally provided with a pressure reducing limiting component, the pressure reducing limiting component comprises a sleeve, a third elastic component, a limiting nut and a post, the limiting nut is fixedly disposed in the first cavity, the mounting groove is provided with a first elastic component, the mounting groove is provided with a second elastic component is disposed in the second cavity, the second cavity is communicated with the first elastic component is disposed in the first cavity, and the second cavity is disposed in the second cavity is in the mounting groove is axially extends between the mounting groove and the first cavity and the second cavity through the second cavity, and the second cavity is further comprises a second piston is axially extends along the end of the mounting groove; the pressure reducing column is arranged inside the sleeve and used for reducing the fluid pressure.
Preferably, the valve body is arranged at a main inlet, and the main inlet is respectively communicated with the first inlet flow passage and the second inlet flow passage.
Preferably, a left end cover is fixedly arranged at the left end of the valve body, and a right end cover is fixedly arranged at the right end of the valve body.
Preferably, the first elastic component comprises a first elastic piece, a first spring seat and a first adjusting rod, one end of the first elastic piece is abutted against the valve core, the other end of the first elastic piece is abutted against one end of the first spring seat, the other end of the first spring seat is abutted against one end of the first adjusting rod, and the other end of the first adjusting rod penetrates through the left end cover.
Preferably, the second elastic component comprises a second elastic piece, a second spring seat and a second adjusting rod, one end of the second elastic piece is abutted against the valve core, the other end of the second elastic piece is abutted against one end of the second spring seat, the other end of the second spring seat is abutted against one end of the second adjusting rod, and the other end of the second adjusting rod penetrates through the right end cover.
Preferably, the end of the limit nut is flush with the port of the mounting groove, and the pressure reducing column is detachably mounted in the sleeve.
Preferably, one end of the first outlet flow passage and one end of the second outlet flow passage, which is close to the valve core, are respectively provided with a first limiting step and a second limiting step, and the first limiting step and the second limiting step are used for limiting the sleeve.
Preferably, the valve core is provided with a damping channel along the axial direction, the damping channel penetrates through the valve core, and the damping channel is sequentially communicated with the first cavity, the main flow channel and the second cavity.
Preferably, the damping channel has an inner diameter smaller than the inner diameters of the first bypass flow channel and the second bypass flow channel, and the first bypass flow channel and the second bypass flow channel have an inner diameter smaller than the inner diameters of the first outlet flow channel and the second outlet flow channel.
Preferably, the first outlet flow passage is connected with a first gas element, and the second outlet flow passage is connected with a second gas element.
The pressure reducing switching valve provided by the application has the beneficial effects that:
1. the decompression limiting component can realize the decompression of the gas medium, no separate decompression valve is needed, the valve structure is simplified, and the installation space and the cost are saved.
2. The decompression limiting component can be automatically locked after the valve core moves to the working position, and can be unlocked only after equipment at the working position is closed, so that multi-equipment operation conflict caused by misoperation is prevented, and the safety of gas utilization equipment is improved.
3. The pressure reducing column can be detachably replaced, so that the pressure reducing effect of the fluid can be conveniently adjusted; meanwhile, the pressure reducing column can also increase the pressure difference at two ends of the sleeve, and is beneficial to the movement of the sleeve under the pressure difference.
4. The first elastic component and the second elastic component can adjust the balance position of the valve core, so that the opening and closing sensitivity of downstream gas utilization equipment is adjusted.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of a pressure reducing switching valve of the present application in an initial position;
FIG. 2 is a schematic view of a pressure reducing switching valve of the present application in a first position;
FIG. 3 is a schematic diagram of a pressure reducing switching valve in a second position according to the present application;
FIG. 4 is a schematic view of the structure of the pressure reducing and limiting assembly of the present application;
fig. 5 is a schematic structural view of the sleeve of the present application.
In the figure: valve body 1, main inlet 101, first inlet flow passage 102, second inlet flow passage 103, first outlet flow passage 104, second outlet flow passage 105, first bypass flow passage 106, second bypass flow passage 107, first limit step 108, second limit step 109, first cavity 110, second cavity 111, valve element 2, main flow passage 201, damping passage 202, mounting groove 203, left end cover 301, right end cover 302, first elastic member 401, first spring seat 402, first adjustment rod 403, second elastic member 501, second spring seat 502, second adjustment rod 503, pressure-reducing limit assembly 6, sleeve 601, boss 6011, barrel 6012, third elastic member 602, limit nut 603, pressure-reducing column 604.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments herein more apparent, the technical solutions in the embodiments herein will be clearly and completely described below with reference to the accompanying drawings in the embodiments herein, and it is apparent that the described embodiments are some, but not all, embodiments herein. All other embodiments, based on the embodiments herein, which a person of ordinary skill in the art would obtain without undue burden, are within the scope of protection herein. It should be noted that, without conflict, the embodiments and features of the embodiments herein may be arbitrarily combined with each other.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
Referring to fig. 1-5, there is provided a first embodiment of the present disclosure, which includes a valve body 1, a valve core 2, where the valve core 2 is slidably disposed in the valve body 1, one side of the valve body 1 is provided with a first inlet flow channel 102 and a second inlet flow channel 103, the other side of the valve body 1 is provided with a first outlet flow channel 104 and a second outlet flow channel 105, the valve core 2 is radially provided with a main flow channel 201, a left end of the valve core 2 is provided with a first cavity 110, a first elastic component is disposed in the first cavity 110, a right end of the valve core 2 is provided with a second cavity 111, a second elastic component is disposed in the second cavity 111, the first cavity 110 is communicated with the first outlet flow channel 104 through a first bypass flow channel 106, the second cavity 111 is communicated with the second outlet flow channel 105 through a second bypass flow channel 107, the outlet end of the main flow channel 201 is provided with an annular mounting groove 203, one end of the mounting groove 203 is provided with a step, the other end of the mounting groove 203 extends to a port of the main flow channel 201, a decompression limiting component 6 is arranged in the mounting groove 203, the decompression limiting component 6 comprises a sleeve 601, a third elastic piece 602, a limiting nut 603 and a decompression column 604, the limiting nut 603 is fixedly arranged at the port of the mounting groove 203, the sleeve 601 is slidably arranged in the mounting groove 203, the sleeve 601 comprises a boss 6011 extending along the axial direction of the valve core 2 and a barrel 6012 extending along the radial direction of the valve core 2, the boss 6011 is attached to the inner wall of the mounting groove 203 and is positioned between the step of the mounting groove 203 and the limiting nut 603, the third elastic piece 602 is arranged between the boss 6011 and the limiting nut 603, the barrel 6012 slides along the inner wall of the limiting nut 603, and the end of the barrel 6012 can extend into the first outlet flow channel 104; the pressure reducing column 604 is provided inside the sleeve 601 for reducing the fluid pressure. According to the application, the decompression limiting assembly 6 is arranged in the main flow channel 201 of the valve core 2 of the switching valve, when the first outlet flow channel 104 is communicated with a downstream device (such as a first electromagnetic valve), the pressure of the first outlet flow channel 104 is reduced, so that the pressure of the first cavity 110 is reduced, the balance of two ends of the valve core 2 is broken, the valve core 2 is enabled to move into the first cavity 110 under the action of the internal gas pressure of the second cavity 111 and the pressure of the second elastic assembly, so that the first inlet flow channel 102, the main flow channel 201 and the first outlet flow channel 104 are communicated, fluid passes through the decompression limiting assembly 6, on one hand, the pressure can be reduced, the independent decompression valve is not required to be connected, the space and the cost are saved, on the other hand, under the action of the fluid pressure, the upstream pressure of the decompression limiting assembly 6 is larger than the downstream pressure, after the main flow channel 201 is aligned with the first outlet flow channel 104, one end of the sleeve 601 can extend into the first outlet flow channel 104 under the action of gas pressure, at this moment, the valve core 2 can not move axially again, and is in a locking state, so that the first inlet flow channel 102, the first outlet flow channel 201, the first outlet flow channel 104 and the second outlet flow channel 104 are kept at the position 105 are not communicated with each other, or the downstream device is not in the unexpected state, and the first outlet flow channel 105 is prevented from being opened, or the downstream device is in the unexpected state, and the first outlet flow channel 105 is opened; when the downstream device of the first outlet flow passage 104 is closed (i.e. the downstream device stops working), the pressures in the first outlet flow passage 104 and the first cavity 110 rise, the pressures at two ends of the pressure reducing limiting assembly 6 tend to be consistent, under the action of the third elastic member 602, the pressure reducing limiting assembly 6 is moved and restored to the mounting groove 203, so that the locking of the valve core 2 is released, at this time, if the downstream device communicated with the second outlet flow passage 105 is opened, the pressures of the second outlet flow passage 105 and the second cavity 111 fall, and under the action of the internal gas pressure of the first cavity 110 and the pressure of the first elastic member, the valve core 2 moves to the second cavity 111, so that the valve core 2 moves to the second position communicated with the second outlet flow passage 105, the main flow passage 201 and the second outlet flow passage 105, and the specific working process is the same as the working process of the valve core 2 moving to the first cavity 110.
The valve body 1 is arranged at a main inlet 101, and the main inlet 101 is respectively communicated with a first inlet flow passage 102 and a second inlet flow passage 103. Since the first inlet flow channel 102 and the second inlet flow channel 103 are both fluid inlets, the total inlet 111 is adopted to input fluid, so that the number of interfaces can be reduced, and the possibility of leakage is reduced.
The left end of the valve body 1 is fixedly provided with a left end cover 301, the right end of the valve body 1 is fixedly provided with a right end cover 302, and the disassembly and the installation of parts in the valve are convenient.
The first elastic assembly comprises a first elastic piece 401, a first spring seat 402 and a first adjusting rod 403, one end of the first elastic piece 401 is abutted against the valve core 2, the other end of the first elastic piece 401 is abutted against one end of the first spring seat 402, the other end of the first spring seat 402 is abutted against one end of the first adjusting rod 403, and the other end of the first adjusting rod 403 penetrates through the left end cover 301; the second elastic assembly comprises a second elastic piece 501, a second spring seat 502 and a second adjusting rod 503, one end of the second elastic piece 501 is abutted against the valve core 2, the other end of the second elastic piece 501 is abutted against one end of the second spring seat 502, the other end of the second spring seat 502 is abutted against one end of the second adjusting rod 503, and the other end of the second adjusting rod 503 penetrates through the right end cover 302. The first elastic member 401 and the second elastic member 501 are springs, the elastic assemblies at two ends of the valve core 2 are spring devices which can be adjusted by adopting an adjusting rod, the pretightening force of the corresponding springs can be adjusted by rotating the adjusting rod, and the balance position of the valve core is changed, so that the response speed of the operation of the downstream devices of the first outlet flow channel 104 and the second outlet flow channel 105 is changed, for example, when the pretightening force of the first elastic member 401 is small and the pretightening force of the second elastic member 501 is large, the balance position of the valve core 2 relatively deviates to the first outlet flow channel 104, the distance between the main flow channel 201 and the second outlet flow channel 105 is closer, the pressure difference between the main flow channel 201 and the second outlet flow channel 105 is smaller, and therefore, when the downstream device of the first outlet flow channel 104 is opened, the gas fluid flows in by the smaller pressure difference, and the reaction time required by the moving process of the valve core 2 is shorter, namely, the downstream device of the first outlet flow channel 104 is more sensitive; conversely, downstream devices of the second outlet flow passage 105 may be more retarded.
The end of the limit nut 603 is flush with the port of the mounting groove 203, so that the sliding of the valve core 2 can be ensured, the volume of the sleeve 601 can be reduced, and the sleeve 601 can be conveniently and rapidly moved to the first outlet flow passage 104 or the second outlet flow passage 105; the pressure reducing column 604 is detachably installed in the sleeve 601, the pressure reducing column 604 can adopt a pressure reducing structure in the prior art, and a tortuous narrow flow passage is generally adopted to generate resistance to the flow of fluid, so that the purpose of reducing pressure is achieved, and the pressure reducing effect of the flow passages with different numbers and bending degrees is also different; meanwhile, the pressure reducing column 604 can improve the pressure difference at two ends of the sleeve 601 due to the pressure reducing effect, is beneficial to the movement of the sleeve 601, is convenient for the sleeve 601 to react quickly, and locks the valve core 2.
The ends of the first outlet flow passage 104 and the second outlet flow passage 105, which are close to the valve core 2, are respectively provided with a first limiting step 108 and a second limiting step 109, and the first limiting step 108 and the second limiting step 109 are used for limiting the sleeve 601. Through setting up first spacing step 108 the spacing step 109 of second can carry out spacingly to the removal of sleeve 601, prevents that sleeve 601 from moving the range too big, compresses the excessive compression of third elastic component 602, also makes sleeve 601 reset time easier.
The valve core 2 is provided with a damping channel 202 along the axial direction, the damping channel 202 penetrates through the valve core 2, and the damping channel 202 is sequentially communicated with the first cavity 110, the main flow channel 201 and the second cavity 111. Through setting up damping passageway 202, can be with less flow intercommunication first cavity 110 and second cavity 111 for when the device stopped working, case 2 both ends pressure tends to balance, is favorable to the quick reset of case 2.
The inner diameter of the damping channel 202 is smaller than the inner diameters of the first bypass channel 106 and the second bypass channel 107, the inner diameters of the first bypass channel 106 and the second bypass channel 107 are smaller than the inner diameters of the first outlet channel 104 and the second outlet channel 105, and the inner diameters of the first outlet channel 104 and the second outlet channel 105 are equal to the inner diameter of the main flow channel 201. The smaller inner diameter of the damping channel 202 enables, on the one hand, the damping channel 202 to communicate the first cavity 110 with the second cavity 111 at a smaller flow rate, and, on the other hand, when the device is in an operating state (i.e. the downstream device of the first outlet flow channel 104 or the second outlet flow channel 105 is opened), the flow rate of the damping channel 202 is negligible relative to the main flow channel 201 or other flow channels, so that the movement of the valve element 2 is not substantially affected.
The first outlet flow passage 104 is connected to a first gas component, the second outlet flow passage 105 is connected to a second gas component, and the first gas component and the second gas component may be electromagnetic valves or cylinders, where downstream devices (i.e., gas components) of the first outlet flow passage 104 or the second outlet flow passage 105 are electromagnetic valves, which are common usage scenarios, and of course, in some other scenarios, the downstream devices may be other gas consuming devices, such as cylinders, etc.
The working process (in this embodiment, the first gas element and the second gas element are both electromagnetic valves, that is, the first outlet flow passage 104 is connected to the first electromagnetic valve, and the second outlet flow passage 105 is connected to the second electromagnetic valve): when the first electromagnetic valve is opened, the pressure in the first outlet flow passage 104, the first bypass flow passage 106 and the first cavity 110 is reduced, the balance of the two ends of the valve core 2 is broken, the valve core 2 moves into the first cavity 110 under the action of the internal gas pressure of the second cavity 111 and the pressure of the second elastic piece 501, so that the first inlet flow passage 102, the main flow passage 201 and the first outlet flow passage 104 are communicated, fluid is decompressed through the decompression limiting assembly 6, and because of the pressure difference between the two ends of the decompression limiting assembly 6, one end of the decompression limiting assembly 6 moves to the first limiting step 108 of the first outlet flow passage 104, the valve core 2 is in a relatively locked state, and at the moment, only the first gas valve can work; when the first gas valve is closed, the pressures in the first outlet flow passage 104, the first bypass flow passage 106 and the first cavity 110 gradually rise, when the pressure of the pressure reducing and limiting assembly 6 is nearly uniform, the pressure reducing and limiting assembly 6 is retracted into the main flow passage 201 under the action of the third elastic member 602, the locking of the valve core 2 is released, and the valve core 2 gradually returns to the initial equilibrium position under the condition that the pressure difference between the two ends gradually disappears. When the second solenoid valve is opened, the valve core 2 moves toward the second chamber 111, which has the same operation as that of the first solenoid valve, and will not be described again.
While preferred embodiments herein have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all alterations and modifications as fall within the scope herein.
It will be apparent to those skilled in the art that various modifications and variations can be made herein without departing from the spirit and scope of the disclosure. Thus, given that such modifications and variations herein fall within the scope of the claims herein and their equivalents, such modifications and variations are intended to be included herein.
Claims (10)
1. The utility model provides a decompression switching valve, includes valve body (1), case (2) slide set up in valve body (1), valve body (1) one side is equipped with first entry runner (102), second entry runner (103), valve body (1) opposite side is equipped with first export runner (104), second export runner (105), case (2) radially are equipped with main flow channel (201), case (2) left end has first cavity (110), be equipped with first elastic component in first cavity (110), case (2) right-hand member has second cavity (111), be equipped with second elastic component in second cavity (111), first cavity (110) through first bypass runner (106) with first export runner (104) intercommunication, second cavity (111) through second bypass runner (107) with second export runner (105) intercommunication, its characterized in that:
the outlet end of the main flow channel (201) is provided with an annular mounting groove (203), one end of the mounting groove (203) is provided with a step, the other end of the mounting groove extends to a port of the main flow channel (201), a decompression limiting component (6) is arranged in the mounting groove (203), the decompression limiting component (6) comprises a sleeve (601), a third elastic piece (602), a limiting nut (603) and a decompression column (604), the limiting nut (603) is fixedly arranged at the port of the mounting groove (203), the sleeve (601) is slidably arranged in the mounting groove (203), the sleeve (601) comprises a boss (6011) extending along the axial direction of the valve core (2) and a barrel part (6012) extending along the radial direction of the valve core (2), the boss (6011) is attached to the inner wall of the mounting groove (203) and is positioned between the step of the mounting groove (203) and the limiting nut (603), the third elastic piece (602) is arranged between the boss (6011) and the limiting nut (603), the barrel part (6012) slides along the inner wall of the limiting nut (603), and the end part of the barrel part (6012) can extend into the first flow channel (104); the pressure reducing column (604) is arranged inside the sleeve (601) and is used for reducing the fluid pressure.
2. The pressure reducing switching valve according to claim 1, wherein the valve body (1) is provided at a main inlet (101), and the main inlet (101) is respectively communicated with a first inlet flow passage (102) and a second inlet flow passage (103).
3. The pressure reducing switching valve according to claim 1, wherein a left end cover (301) is fixedly arranged at the left end of the valve body (1), and a right end cover (302) is fixedly arranged at the right end of the valve body (1).
4. The pressure reducing switching valve according to claim 3, wherein the first elastic assembly comprises a first elastic member (401), a first spring seat (402) and a first adjusting rod (403), one end of the first elastic member (401) is abutted against the valve core (2), the other end of the first elastic member (401) is abutted against one end of the first spring seat (402), the other end of the first spring seat (402) is abutted against one end of the first adjusting rod (403), and the other end of the first adjusting rod (403) passes through the left end cover (301).
5. The pressure reducing switching valve according to claim 3, wherein the second elastic assembly comprises a second elastic member (501), a second spring seat (502) and a second adjusting rod (503), one end of the second elastic member (501) is abutted against the valve core (2), the other end of the second elastic member (501) is abutted against one end of the second spring seat (502), the other end of the second spring seat (502) is abutted against one end of the second adjusting rod (503), and the other end of the second adjusting rod (503) passes through the right end cover (302).
6. The pressure reducing switching valve according to claim 1, wherein an end of the limit nut (603) is flush with a port of the mounting groove (203), and the pressure reducing column (604) is detachably mounted in the sleeve (601).
7. The pressure reducing switching valve according to claim 1, wherein a first limit step (108) and a second limit step (109) are respectively arranged at one end of the first outlet flow passage (104) and one end of the second outlet flow passage (105) close to the valve core (2), and the first limit step (108) and the second limit step (109) are used for limiting the sleeve (601).
8. The pressure reducing switching valve according to claim 1, wherein the valve core (2) is provided with a damping channel (202) along an axial direction, the damping channel (202) penetrates through the valve core (2), and the damping channel (202) is sequentially communicated with the first cavity (110), the main flow channel (201) and the second cavity (111).
9. The pressure reducing switching valve according to claim 8, wherein an inner diameter of the damping passage (202) is smaller than inner diameters of the first bypass flow passage (106) and the second bypass flow passage (107), and inner diameters of the first bypass flow passage (106) and the second bypass flow passage (107) are smaller than inner diameters of the first outlet flow passage (104) and the second outlet flow passage (105).
10. The pressure reducing switching valve according to claim 1, wherein the first outlet flow passage (104) is connected to a first gas element and the second outlet flow passage (105) is connected to a second gas element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310848681.6A CN116576271B (en) | 2023-07-12 | 2023-07-12 | Pressure reducing switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310848681.6A CN116576271B (en) | 2023-07-12 | 2023-07-12 | Pressure reducing switching valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116576271A true CN116576271A (en) | 2023-08-11 |
| CN116576271B CN116576271B (en) | 2023-11-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310848681.6A Active CN116576271B (en) | 2023-07-12 | 2023-07-12 | Pressure reducing switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116576271B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1130164A (en) * | 1965-06-04 | 1968-10-09 | Dowty Hydraulic Units Ltd | Slide valves |
| CN204985903U (en) * | 2015-08-31 | 2016-01-20 | 宁波索诺工业自控设备有限公司 | Precise pressure reducing valve |
| US20160091101A1 (en) * | 2014-09-29 | 2016-03-31 | Robert Bosch Gmbh | Pressure Reducing Valve with Separate Radial Bores for Different Fluid Flow Paths |
| US20190309837A1 (en) * | 2018-04-05 | 2019-10-10 | Asco Controls B.V. | Valve with a locked set screw that is covered with a cap having a rotation space fitting freely over a nut and a female threaded portion screwed onto the set screw |
| CN216867589U (en) * | 2021-07-26 | 2022-07-01 | 杭州富鑫精密机械有限公司 | Pressure regulating valve with pressure detection function |
-
2023
- 2023-07-12 CN CN202310848681.6A patent/CN116576271B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1130164A (en) * | 1965-06-04 | 1968-10-09 | Dowty Hydraulic Units Ltd | Slide valves |
| US20160091101A1 (en) * | 2014-09-29 | 2016-03-31 | Robert Bosch Gmbh | Pressure Reducing Valve with Separate Radial Bores for Different Fluid Flow Paths |
| CN204985903U (en) * | 2015-08-31 | 2016-01-20 | 宁波索诺工业自控设备有限公司 | Precise pressure reducing valve |
| US20190309837A1 (en) * | 2018-04-05 | 2019-10-10 | Asco Controls B.V. | Valve with a locked set screw that is covered with a cap having a rotation space fitting freely over a nut and a female threaded portion screwed onto the set screw |
| CN216867589U (en) * | 2021-07-26 | 2022-07-01 | 杭州富鑫精密机械有限公司 | Pressure regulating valve with pressure detection function |
Non-Patent Citations (1)
| Title |
|---|
| 石玉鹏;鲁雪生;: "减压器启动冲击解决方案", 上海航天, no. 04, pages 61 - 64 * |
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| Publication number | Publication date |
|---|---|
| CN116576271B (en) | 2023-11-10 |
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