CN111637264A - Switching valve and pressure regulating valve integrated device - Google Patents
Switching valve and pressure regulating valve integrated device Download PDFInfo
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- CN111637264A CN111637264A CN202010596640.9A CN202010596640A CN111637264A CN 111637264 A CN111637264 A CN 111637264A CN 202010596640 A CN202010596640 A CN 202010596640A CN 111637264 A CN111637264 A CN 111637264A
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- pressure regulating
- valve
- regulating valve
- pressure
- interface
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
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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
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses an integrated device of a switch valve and a pressure regulating valve, which relates to the technical field of fluid control devices and comprises a main pipeline, a pressure regulating valve assembly and a switch valve assembly. The invention mainly solves the problem of how to improve the integrity among the switch valve, the pressure regulating valve and the pressure gauge; during installation, the fluid inlet of the main pipeline is connected with the pipeline of the gas supply end, the fluid outlet is connected with the pipeline of the gas using equipment, and a connecting part is not arranged among the pressure regulating valve assembly, the switch valve assembly and the pressure gauge, so that the installation is convenient, the system size is small, the problem that gas is leaked at the connecting part among the traditional switch valve, the pressure regulating valve and the pressure gauge is solved, and the quality and the service life of the gas pipeline are improved.
Description
Technical Field
The invention relates to the technical field of fluid control devices, in particular to a device integrating a switch valve and a pressure regulating valve.
Background
In gas supply systems such as laboratory gas supply lines, industrial welding gas supply lines, semiconductor gas supply lines, automatic control equipment gas supply lines, etc., switching valves, pressure regulating valves, and pressure gauges are generally used to switch, regulate, and indicate the pressure of gas.
If want to link together mutually independent ooff valve, air-vent valve and manometer, need use multiunit joint and connecting pipe, these connect and connecting pipe usually pass through threaded connection, not only the installation is inconvenient, bulky, and each junction all has the possibility of leaking gas moreover, influences gas supply system's quality, life and security.
In summary, the problem to be solved in the air supply system at present is how to improve the integrity among the switch valve, the pressure regulating valve and the pressure gauge.
Disclosure of Invention
The invention aims to provide an integrated device of a switch valve and a pressure regulating valve, which combines a main pipeline, a pressure regulating valve component and the switch valve component into a whole and improves the integrity between the switch valve and the pressure regulating valve.
In order to achieve the purpose, the invention provides the following technical scheme: an integrated device of a switch valve and a pressure regulating valve comprises a main pipeline, a pressure regulating valve assembly and a switch valve assembly; a pressure regulating valve interface and a switch valve interface are formed on the main pipeline, and a front fluid channel and a rear fluid channel are formed in an inner cavity of the main pipeline; the tail end of the front fluid channel is connected to the inner side of the pressure regulating valve interface, the pressure regulating valve interface is provided with a pressure regulating valve cavity towards the inner side of the main pipeline, and the pressure regulating valve cavity is communicated with the starting end of the rear fluid channel; a switch valve cavity is formed in the rear fluid passage and communicated with the inner side of the switch valve interface; the pressure regulating valve assembly comprises a pressure regulating knob, a pressure regulating valve cover, a pressure regulating valve rod, a pressure regulating spring, a pressure regulating diaphragm, an injector, a pressure valve, a spring base and a pressure valve spring; the pressure regulating diaphragm covers the pressure regulating valve interface, and the pressure regulating valve cover is in threaded connection with the pressure regulating valve interface and presses the pressure regulating diaphragm; the pressure regulating valve rod penetrates through the pressure regulating valve cover and is in threaded connection with the pressure regulating valve cover, a spring pressing sheet is arranged at one end, located in the pressure regulating valve cover, of the pressure regulating valve rod, the pressure regulating spring is located between the spring pressing sheet and the pressure regulating pressing sheet, and the pressure regulating knob is fixed at one end, located outside the pressure regulating valve cover, of the pressure regulating valve rod; the injector is arranged at the joint of the pressure regulating valve cavity and the pressure regulating valve interface, the spring base is positioned at the bottom of the pressure regulating valve cavity, the pressure valve is arranged in the pressure regulating valve cavity, the pressure valve is provided with a spring pressing rib, the pressure valve spring is positioned between the spring pressing rib and the spring base, and the pressure valve can be propped against the communication port of the injector; the switch valve component comprises a switch valve, a switch valve cover and a handle; the switch valve cover is in threaded connection with a switch valve interface, the switch valve comprises a valve body and a valve rod which are connected with each other, a valve body passage is formed in the valve body, the valve body is located in the switch valve cavity and can rotate in the switch valve cavity, the valve body passage can be communicated or cut off the rear fluid passage, the valve rod penetrates out of the switch valve cover, and the handle is fixed at one end of the valve rod, which penetrates out of the switch valve cover.
In the technical scheme, a pressure gauge interface is further formed on the main pipeline and communicated with the front fluid channel; and a pressure gauge is connected to the pressure gauge interface.
In the above technical scheme, an injector interface is arranged in the pressure regulating valve interface, and the injector is in threaded connection with the injector interface.
In the above technical scheme, a diaphragm is arranged between the pressure regulating spring and the pressure regulating diaphragm.
In the above technical scheme, a first sealing ring is arranged between the diaphragm plate and the pressure regulating film.
In the above technical solution, the pressure regulating valve assembly further comprises a second sealing ring; the pressure regulating valve cover presses the pressure regulating film through the second sealing ring.
In the technical scheme, a third sealing ring is embedded at the communication port of the injector, and the pressure valve can be propped against the third sealing ring.
In the above technical solution, the switch valve assembly further comprises a lower assembly and an upper assembly; the lower assembly and the upper assembly are combined up and down to form a four-way passage, the lower assembly and the upper assembly are both arranged in the switch valve cavity, two opposite openings of the four-way passage are communicated with the rear fluid passage, and the other two opposite openings of the four-way passage face to the inner wall of the switch valve cavity; the valve body passage on the valve body can be aligned with any two opposite openings on the four-way passage.
In the above technical solution, the switch valve assembly further includes an upper gland head, a fourth seal ring, and a lower gland head; the switch valve cover presses the upper assembly through the upper gland head, the fourth sealing ring and the lower gland head from top to bottom in sequence.
In the technical scheme, the four-way passage is communicated with an opening of the rear fluid passage, and a side ring is embedded in the opening of the four-way passage facing the inner wall of the switch valve cavity.
Compared with the prior art, the invention has the beneficial effects that: this kind of ooff valve and air-vent valve integrated form device, including the trunk line, air-vent valve subassembly and switch valve subassembly, with the trunk line, pressure-vent valve subassembly and switch valve subassembly combination are as an organic whole, during the installation, with the fluid inlet of trunk line with the pipe connection of air feed end, with the fluid export with the pipe connection of gas appliances can, to the finished product of this kind of ooff valve and air-vent valve integrated form device, the air-vent valve subassembly, do not have the coupling part between switch valve subassembly and the manometer, and not only simple to operate, the system is small, still avoided traditional ooff valve, the gaseous problem is revealed to the junction between air-vent valve and the manometer, the quality and the life-span.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a partially enlarged view of a in fig. 3.
Fig. 5 is a perspective view of another form of the present invention.
Fig. 6 is an exploded view of another form of the invention.
The reference signs are: 1. a main pipeline; 11. a fluid inlet; 12. a front fluid channel; 13. a pressure gauge interface; 14. a pressure regulating valve interface; 15. a pressure regulating valve cavity; 16. a throttle section; 161. an injector interface; 17. a switching valve interface; 18. opening and closing the valve cavity; 19. a rear fluid channel; 10. a fluid outlet; 2. a pressure gauge; 3. a pressure regulating valve assembly; 301. a pressure regulating valve cover; 302. a pressure regulating valve rod; 303. pressing a spring plate; 304. a pressure regulating spring; 305. a diaphragm plate; 306. film regulating and pressing; 307. a first seal ring; 308. a second seal ring; 309. an injector; 310. a third seal ring; 311. a pressure valve; 312. pressing ribs by springs; 313. a spring mount; 314. a pressure valve spring; 315. a pressure regulating knob; 316. a stabilizer bar; 4. a switch valve assembly; 41. an on-off valve; 411. a valve body; 412. a valve stem; 413. a valve body passage; 42. a lower assembly; 43. an upper assembly; 44. an edge ring; 45. a side pad; 46. a valve cover is opened and closed; 47. an upper gland head; 48. a fourth seal ring; 49. a lower gland head; 40. a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, an integrated switching valve and pressure regulating valve device includes a main pipe 1, a pressure regulating valve assembly 3 and a switching valve assembly 4.
The main pipeline 1 is an integrally formed tubular metal part made of stainless steel or aluminum alloy; a pressure regulating valve interface 14 and a switch valve interface 17 are formed on the main pipeline 1, and the pressure regulating valve interface 14 and the switch valve interface 17 are both annular and are integrally formed with the main pipeline 1; wherein the on-off valve interface 17 has an internal thread; a front fluid channel 12 and a rear fluid channel 19 which are horizontally arranged are formed in the inner cavity of the main pipeline 1, the front fluid channel 12 is not directly communicated with the rear fluid channel 19, the starting end of the front fluid channel 12 is a fluid inlet 11, the tail end of the rear fluid channel 19 is a fluid outlet 10, and the fluid inlet 11 and the fluid outlet 10 are both internal thread parts; the tail end of the front fluid passage 12 is upwards connected to the inner side of the pressure regulating valve interface 14, the pressure regulating valve interface 14 is provided with a pressure regulating valve cavity 15 towards the inner side of the main pipeline 1, the pressure regulating valve cavity 15 is a cylindrical cavity and is coaxial with the pressure regulating valve interface 14, the pressure regulating valve cavity 15 is communicated with the starting end of the rear fluid passage 19, and the communicated part is positioned on the peripheral surface of the pressure regulating valve cavity 15; the rear fluid passage 19 has a switch valve chamber 18 formed therein, the switch valve chamber 18 communicating with the inside of the switch valve port 17, and the switch valve chamber 18 is a cylindrical cavity coaxial with the switch valve port 17.
The pressure regulating valve assembly 3 comprises a pressure regulating knob 315, a pressure regulating valve cover 301, a pressure regulating valve rod 302, a pressure regulating spring 304, a pressure regulating membrane 306, an injector 309, a pressure valve 311, a spring base 313 and a pressure valve spring 314; the pressure regulating membrane 306 is a disc-shaped stainless steel sheet, which covers the pressure regulating valve interface 14, and the area between the pressure regulating membrane 306 and the bottom of the pressure regulating valve interface 14 is a throttling part 16; the pressure regulating valve cover 301 is a stainless steel cover body, an internal threaded hole is formed in the middle of the pressure regulating valve cover 301, and the pressure regulating valve cover 301 is in threaded connection with the pressure regulating valve interface 14 and presses the pressure regulating diaphragm 306; as shown in fig. 1 and 2, in some possible embodiments, the on-off valve interface 17 has external threads, the cover ring of the pressure regulating valve cover 301 has internal threads, and the internal threads of the pressure regulating valve cover 301 are matched with the external threads of the on-off valve interface 17, so that the pressure regulating valve cover 301 covers the outside of the on-off valve interface 17; in other possible embodiments, as shown in fig. 5 and 6, the on-off valve port 17 has internal threads, and the bottom of the pressure regulating valve cap 301 has external threads, and the external threads of the pressure regulating valve cap 301 are engaged with the internal threads of the on-off valve port 17, so that the pressure regulating valve cap 301 is screwed into the on-off valve port 17. The pressure regulating valve rod 302 is a metal rod, external threads are arranged on the periphery of the pressure regulating valve rod 302, the pressure regulating valve rod 302 penetrates through an internal thread hole of the pressure regulating valve cover 301 and is in threaded connection with the internal thread hole of the pressure regulating valve cover 301, a spring pressing sheet 303 is arranged at one end, located in the pressure regulating valve cover 301, of the pressure regulating valve rod 302, and the spring pressing sheet 303 is sleeved at one end of the pressure regulating valve rod 302 and is welded with the pressure regulating; the pressure regulating spring 304 is positioned between the spring pressing sheet 303 and the pressure regulating film 306, so that the pressure regulating spring 304 can respectively apply pressure to the spring pressing sheet 303 and the pressure regulating film 306; the pressure regulating knob 315 is a cylindrical plastic knob, and the pressure regulating knob 315 is fixed at one end of the pressure regulating valve rod 302 outside the pressure regulating valve cover 301; the injector 309 is a stainless steel workpiece and is approximately annular, two end openings of the injector 309 are communication ports for communicating the throttling part 16 with the pressure regulating valve cavity 15, and the injector 309 is arranged at the connection part of the pressure regulating valve cavity 15 and the throttling part 16; the spring base 313 is a tubular stainless steel workpiece, the bottom of the spring base 313 is provided with radial convex ribs, the spring base 313 is positioned at the bottom of the pressure regulating valve cavity 15, the convex ribs of the spring base 313 are tightly attached to the bottom of the pressure regulating valve cavity 15, and the spring base 313 is used for providing support for the pressure valve spring 314 and the pressure valve 311; the pressure valve 311 is a stainless steel member, the top of the pressure valve 311 is an apex cone, the upper portion of the apex cone is a conical portion, a circle of spring pressing rib 312 is formed at the bottom of the apex cone, stabilizing rods 316 axially extend from the top and the bottom of the apex cone, the stabilizing rods 316 at the top penetrate into the injector 309 but do not contact with the injector 309, the stabilizing rods 316 at the bottom penetrate into the spring base 313, the pressure valve spring 314 is located between the spring pressing rib 312 and the spring base 313, so that the pressure valve spring 314 can respectively apply pressure to the spring pressing rib 312 and the spring base 313, and the apex cone of the pressure valve 311 can prop against a communication port of the injector 309.
The switch valve assembly 4 includes a switch valve 41, a switch valve cover 46, and a handle 40; the switch valve cover 46 is a stainless steel cover body, the middle part of the switch valve cover 46 is provided with a through hole, the lower part of the switch valve cover 46 is provided with external threads, and the switch valve cover 46 is in threaded connection with the switch valve connector 17; the switch valve 41 is a stainless steel member and comprises a valve body 411 and a valve rod 412 which are connected with each other, the valve body 411 and the valve rod 412 are integrally formed, a valve body passage 413 is formed on the valve body 411, the valve body 411 is positioned in the switch valve cavity 18 and can rotate in the switch valve cavity 18, the valve body passage 413 can be communicated or cut off with the rear fluid passage 19, and the valve rod 412 penetrates out of the switch valve cover 46; the handle 40 is a strip-shaped plastic handle 40, and the handle 40 is fixed at one end of the valve rod 412 which penetrates out of the switch valve cover 46.
Further, a pressure gauge interface 13 is formed on the main pipe 1, the pressure gauge interface 13 is a threaded hole formed in the main pipe 1 and communicated with the front fluid channel 12, and a pressure gauge 2 is connected to the pressure gauge interface 13; the pressure gauge 2 is provided so that a user can read the fluid pressure in the main pipe 1, and the adaptability of the switching valve and pressure regulating valve integrated device is improved.
Further, an injector interface 161 is provided in the pressure regulating valve interface 14, that is, the injector interface 161 is located on the throttling portion 16, the injector interface 161 is an internal threaded interface and is coaxial with the pressure regulating valve interface 14, an external thread is provided on the lower portion of the injector 309, and the injector 309 is screwed with the injector interface 161.
Further, a diaphragm 305 is arranged between the pressure regulating spring 304 and the pressure regulating diaphragm 306, the diaphragm 305 is a circular stainless steel sheet, the pressure regulating spring 304 presses on the diaphragm 305, and the pressure regulating diaphragm 306 is pressed by the diaphragm 305; set up the cross slab 305 and can avoid pressure regulating spring 304 direct action to pressure regulating diaphragm 306, increase pressure regulating diaphragm 306's lifting surface area, make pressure regulating diaphragm 306 atress even, improve pressure regulating diaphragm 306's life.
Further, a first sealing ring 307 is arranged between the diaphragm plate 305 and the pressure regulating film 306, and the first sealing ring 307 is a rubber or polymer sealing ring; the first seal ring 307 is provided so as to improve the degree of sealing between the diaphragm 305 and the pressure regulating diaphragm 306.
Further, the pressure regulating valve assembly 3 further comprises a second sealing ring 308; the second sealing ring 308 is a rubber or polymer sealing ring and is positioned at the outer edge of the pressure regulating membrane 306, and the pressure regulating membrane 306 is pressed by the pressure regulating valve cover 301 through the second sealing ring 308; a second seal ring 308 is provided to improve the degree of sealing between the pressure regulating diaphragm 306 and the throttle portion 16.
Further, a third sealing ring 310 is embedded in a communication port of the injector 309, the third sealing ring 310 is made of rubber or polymer, specifically, an annular rib is formed near the communication port of the injector 309, the third sealing ring 310 is embedded in the annular rib, and a tip cone of the pressure valve 311 can be pressed against the third sealing ring 310; a third seal 310 is provided to improve the degree of sealing between the pressure valve 311 and the communication port of the injector 309.
Further, the switch valve assembly 4 further includes a lower assembly 42 and an upper assembly 43; the lower assembly piece 42 and the upper assembly piece 43 are both polymer workpieces, the lower assembly piece 42 and the upper assembly piece 43 are combined up and down to form a cubic part, the part is provided with a four-way channel, namely the part is hollow, and four side surfaces of the part are circular openings communicated with the hollow part of the part; the lower assembly 42 and the upper assembly 43 are arranged in the switch valve cavity 18 and tightly attached to the inner wall of the switch valve cavity 18, two opposite openings of the four-way passage are communicated with the rear fluid passage 19, and the other two opposite openings of the four-way passage face to the inner wall of the switch valve cavity 18; the valve body passage 413 on the valve body 411 can be aligned with any two opposing openings on the four-way passage.
Further, the switch valve assembly 4 further includes an upper flange 47, a fourth sealing ring 48 and a lower flange 49; the upper gland head 47 and the lower gland head 49 are both stainless steel parts, the upper gland head 47 is a circular sheet-shaped cover plate, the lower gland head 49 is a hollow cylindrical box body, the upper gland head 47 and the lower gland head 49 can be combined to form a hollow cylindrical workpiece, and the middle parts of the upper gland head 47, the fourth sealing ring 48 and the lower gland head 49 are all provided with circular through holes for the valve rod 412 to pass through; a fourth seal ring 48 is received between the upper and lower gland heads 47, 49; the valve rod 412 sequentially passes through the lower gland head 49, the fourth sealing ring 48 and the upper gland head 47, and the switch valve cover 46 sequentially passes through the upper gland head 47, the fourth sealing ring 48 and the lower gland head 49 from top to bottom to press the upper assembly 43; an upper flange 47, a fourth seal ring 48, and a lower flange 49 are provided to improve the degree of sealing between the switching valve assembly 4 and the switching valve port 17.
Furthermore, a side ring 44 is embedded in an opening of the four-way passage communicated with the rear fluid passage 19, a side pad 45 is embedded in an opening of the four-way passage facing the inner wall of the switch valve cavity 18, and the materials of the side ring 44 and the side pad 45 are the same as those of the lower assembly 42 and the upper assembly 43; edge ring 44 and edge pad 45 are provided to increase the tightness of valve body passage 413 with respect to lower sub-assembly 42 and upper sub-assembly 43.
When the integrated type switch valve and pressure regulating valve integrated device is installed, the fluid inlet 11 of the main pipeline 1 is connected with a pipeline at a gas supply end through threads, and the fluid outlet 10 is connected with a pipeline of gas equipment through threads.
The pressure regulating principle of the pressure regulating valve assembly 3 is as follows: gas enters the throttling part 16 from the front fluid passage 12, when the pressure of the gas in the throttling part 16 is enough to overcome the elastic force of the pressure valve spring 314 and push the pressure valve 311 away from the injector 309, the gas can enter the rear fluid passage 19 through the pressure regulating valve cavity 15, and when the pressure of the gas entering the pressure regulating valve cavity 15 and the elastic force of the pressure valve spring 314 reach a balanced state, the gas can be continuously supplied to the gas-using equipment at a relatively constant pressure; when the air supply pressure needs to be adjusted, the pressure adjusting knob 315 is screwed, and then the pressure adjusting valve rod 302 is screwed, so that the spring pressing sheet 303 at the bottom of the pressure adjusting valve rod 302 translates towards the inner side or the outer side of the pressure adjusting valve cover 301, and thus the pressure on the pressure adjusting spring 304 is increased or reduced, and further the pressure on the pressure adjusting film 306 by the pressure adjusting spring 304 is increased or reduced; when the pressure of the pressure regulating diaphragm 306 is increased, the outward deformation degree of the pressure regulating diaphragm is small, so that the pressure of the throttling part 16 is increased, the pressure valve 311 is more easily jacked by gas, and the gas supply pressure is improved; when the pressure of the pressure regulating diaphragm 306 is reduced, the degree of outward deformation of the pressure regulating diaphragm is large, so that the pressure of the throttling part 16 is reduced, the pressure valve 311 is more difficult to jack up by gas, and the gas supply pressure is reduced.
When the invention is used, the switch valve 41 is pulled by the handle 40, so that the valve body channel 413 on the valve body 411 is communicated with the rear fluid channel 19, and gas can be supplied to gas-using equipment; during pressure regulation, the pressure regulating knob 315 is rotated to regulate the air supply pressure, which can be read from the pressure gauge 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An integrated device of a switch valve and a pressure regulating valve is characterized by comprising a main pipeline, a pressure regulating valve component and a switch valve component;
a pressure regulating valve interface and a switch valve interface are formed on the main pipeline, and a front fluid channel and a rear fluid channel are formed in an inner cavity of the main pipeline; the tail end of the front fluid channel is connected to the inner side of the pressure regulating valve interface, the pressure regulating valve interface is provided with a pressure regulating valve cavity towards the inner side of the main pipeline, and the pressure regulating valve cavity is communicated with the starting end of the rear fluid channel; a switch valve cavity is formed in the rear fluid passage and communicated with the inner side of the switch valve interface;
the pressure regulating valve assembly comprises a pressure regulating knob, a pressure regulating valve cover, a pressure regulating valve rod, a pressure regulating spring, a pressure regulating diaphragm, an injector, a pressure valve, a spring base and a pressure valve spring; the pressure regulating diaphragm covers the pressure regulating valve interface, and the pressure regulating valve cover is in threaded connection with the pressure regulating valve interface and presses the pressure regulating diaphragm; the pressure regulating valve rod penetrates through the pressure regulating valve cover and is in threaded connection with the pressure regulating valve cover, a spring pressing sheet is arranged at one end, located in the pressure regulating valve cover, of the pressure regulating valve rod, the pressure regulating spring is located between the spring pressing sheet and the pressure regulating pressing sheet, and the pressure regulating knob is fixed at one end, located outside the pressure regulating valve cover, of the pressure regulating valve rod; the injector is arranged at the joint of the pressure regulating valve cavity and the pressure regulating valve interface, the spring base is positioned at the bottom of the pressure regulating valve cavity, the pressure valve is arranged in the pressure regulating valve cavity, the pressure valve is provided with a spring pressing rib, the pressure valve spring is positioned between the spring pressing rib and the spring base, and the pressure valve can be propped against the communication port of the injector;
the switch valve component comprises a switch valve, a switch valve cover and a handle; the switch valve cover is in threaded connection with a switch valve interface, the switch valve comprises a valve body and a valve rod which are connected with each other, a valve body passage is formed in the valve body, the valve body is located in the switch valve cavity and can rotate in the switch valve cavity, the valve body passage can be communicated or cut off the rear fluid passage, the valve rod penetrates out of the switch valve cover, and the handle is fixed at one end of the valve rod, which penetrates out of the switch valve cover.
2. The integrated switching valve and pressure regulating valve device according to claim 1, wherein: and a pressure gauge interface is also formed on the main pipeline and is communicated with the front fluid channel, and a pressure gauge is connected to the pressure gauge interface.
3. The integrated switching valve and pressure regulating valve device according to claim 1, wherein: an injector interface is arranged in the pressure regulating valve interface, and the injector is in threaded connection with the injector interface.
4. The integrated switching valve and pressure regulating valve device according to claim 1, wherein: and a diaphragm plate is arranged between the pressure regulating spring and the pressure regulating diaphragm.
5. The integrated switching valve and pressure regulating valve device according to claim 4, wherein: and a first sealing ring is arranged between the diaphragm plate and the pressure regulating film.
6. The integrated switching valve and pressure regulating valve device according to claim 1, wherein: the pressure regulating valve assembly further comprises a second sealing ring; the pressure regulating valve cover presses the pressure regulating film through the second sealing ring.
7. The integrated switching valve and pressure regulating valve device according to claim 1, wherein: and a third sealing ring is embedded in the communication port of the injector, and the pressure valve can be propped against the third sealing ring.
8. The integrated switching valve and pressure regulating valve device according to claim 1, wherein: the switch valve assembly further comprises a lower assembly and an upper assembly;
the lower assembly and the upper assembly are combined up and down to form a four-way passage, the lower assembly and the upper assembly are both arranged in the switch valve cavity, two opposite openings of the four-way passage are communicated with the rear fluid passage, and the other two opposite openings of the four-way passage face to the inner wall of the switch valve cavity;
the valve body passage on the valve body can be aligned with any two opposite openings on the four-way passage.
9. The integrated switching valve and pressure regulating valve device according to claim 8, wherein: the switch valve assembly further comprises an upper gland head, a fourth sealing ring and a lower gland head; the switch valve cover presses the upper assembly through the upper gland head, the fourth sealing ring and the lower gland head from top to bottom in sequence.
10. The integrated switching valve and pressure regulating valve device according to claim 8 or 9, wherein: an edge ring is embedded in an opening of the four-way passage communicated with the rear fluid passage, and an edge pad is embedded in an opening of the four-way passage facing the inner wall of the switch valve cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010596640.9A CN111637264A (en) | 2020-06-28 | 2020-06-28 | Switching valve and pressure regulating valve integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010596640.9A CN111637264A (en) | 2020-06-28 | 2020-06-28 | Switching valve and pressure regulating valve integrated device |
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| Publication Number | Publication Date |
|---|---|
| CN111637264A true CN111637264A (en) | 2020-09-08 |
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|---|---|---|---|
| CN202010596640.9A Pending CN111637264A (en) | 2020-06-28 | 2020-06-28 | Switching valve and pressure regulating valve integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775786A (en) * | 2021-09-08 | 2021-12-10 | 哈电集团哈尔滨电站阀门有限公司 | Pneumatic discharge device and working method thereof |
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2020
- 2020-06-28 CN CN202010596640.9A patent/CN111637264A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775786A (en) * | 2021-09-08 | 2021-12-10 | 哈电集团哈尔滨电站阀门有限公司 | Pneumatic discharge device and working method thereof |
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