Gas pressure and flow stabilizing device

Abstract

The utility model belongs to the technical field of pressure and flow stabilizing devices, and particularly relates to a gas pressure and flow stabilizing device which comprises a valve body, a pressure regulating valve module, a gas flow stabilizing valve module and a flow regulating valve module. A pressure stabilizing structure cavity and a flow stabilizing structure cavity are formed in the valve body, and the pressure regulating valve module is arranged in the pressure stabilizing structure cavity and divides the interior of the pressure stabilizing structure cavity into a lower air inlet cavity and an upper pressure stabilizing cavity. The airflow stabilizing valve module is arranged in the flow stabilizing structure cavity; the flow regulating valve module is arranged on the three-way connecting pipeline and is used for regulating the flow of the gas conveyed to the flow stabilizing structure cavity; the pressure regulating valve module is linked with the air flow stabilizing valve module, so that the demand quantity of air during welding can be reduced to the minimum through automatic regulation of air pressure and air flow in the pressure and flow stabilizing device under different pressures, and meanwhile, the requirement of air consumption during welding can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure and flow stabilization devices, and in particular relates to a gas pressure and flow stabilization device. Background Art

[0002] The current 14th Five-Year Plan for National Economic and Social Development and the long-term goal for 2035 are to reduce carbon dioxide emissions per unit of GDP by 18% (a binding indicator). Shipbuilding, engineering machinery, and steel structure companies all rely heavily on argon arc welding and carbon dioxide welding equipment for welding. Due to different gas supply methods and usage habits among companies, the air pressure in long-distance pipelines is unbalanced, and the air pressure at the gas-consuming equipment at the end of the gas supply system is low. To ensure welding quality and stability, the pipeline pressure is generally increased to increase the system pressure. However, this results in higher air pressure at the gas-consuming equipment at the front end of the gas supply system, resulting in varying degrees of waste during the welding process. Therefore, reducing carbon dioxide emissions is a primary issue for companies seeking energy conservation and emission reduction.

[0003] Therefore, there is an urgent need for a pressure and flow stabilizing device that can minimize the gas demand during welding through automatic adjustment within the pressure and flow stabilizing device under different pressures, while ensuring that the gas demand during welding is met. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a gas pressure and flow stabilizing device, which can reduce the gas demand during welding to a minimum through automatic adjustment within the pressure and flow stabilizing device under different pressures, while ensuring that the gas demand during welding is met.

[0005] One solution of the present invention provides a gas pressure and flow stabilization device, comprising a valve body, a pressure regulating valve module, an airflow stabilization valve module and a flow regulating valve module;

[0006] The valve body has a pressure stabilizing structure cavity and a flow stabilizing structure cavity inside, and the pressure stabilizing structure cavity and the flow stabilizing structure cavity are connected through a three-way connecting pipe;

[0007] The pressure regulating valve module is disposed inside the pressure stabilizing structure cavity, dividing the interior of the pressure stabilizing structure cavity into a lower air intake cavity and an upper pressure stabilizing cavity. The lower air intake cavity is communicated with the air intake port A of the valve body. The pressure regulating valve module is configured to regulate the pressure of the gas transported from the lower air intake cavity to the upper pressure stabilizing cavity.

[0008] The airflow stabilization valve module is arranged in the flow stabilization structure cavity, and the flow stabilization structure cavity is communicated with the air outlet port B of the valve body;

[0009] The flow regulating valve module is arranged on the three-way connecting pipeline and is used to regulate the flow of the gas delivered to the flow stabilizing structure cavity.

[0010] In one solution of the present invention, the pressure regulating valve module includes a first thread seat, a first thread cover, a first valve core, a first spring and an adjusting thread cover;

[0011] The first tooth seat is fixed to the bottom of the air inlet lower cavity, and a rubber ring groove is provided on the top of the first tooth seat for installing a sealing ring;

[0012] The first tooth cover is arranged between the air inlet lower chamber and the pressure stabilizing upper chamber, a first vent hole is arranged on the side of the first tooth cover, and a second vent hole connected to the first vent hole is arranged on the top of the first tooth cover;

[0013] The first valve core is slidably arranged along the receiving hole in the center of the first tooth cover, and the first valve core is slidably sleeved with the top of the first tooth seat. A sealing rubber layer is provided on the outer side of the first valve core, and a ventilation pipeline is provided at the center of the first valve core. The top of the first valve core is semicircular;

[0014] The first spring is arranged between the first valve core and the first tooth seat;

[0015] The regulating tooth cover is fixedly arranged in the threaded hole at the top of the valve body, and the bottom of the regulating tooth cover is in contact with the first valve core. The regulating tooth cover is used to enable the first valve core to adjust the air pressure.

[0016] In one solution of the present invention, the adjusting tooth cover further comprises an adjusting bolt, a second spring, a metal rubber sheet, and a spring pressing sheet;

[0017] The metal rubber sheet is arranged between the regulating tooth cover and the threaded hole at the top of the valve body, and is used to seal the threaded hole to form the pressure-stabilizing upper cavity, and the metal rubber sheet abuts against the top end of the first valve core;

[0018] The second spring is arranged on the top of the metal rubber sheet, and the second spring is embedded in the adjusting tooth cover;

[0019] The adjusting bolt and the spring pressing piece are arranged on the top of the adjusting tooth cover and are used to adjust the elastic stroke of the second spring.

[0020] In one solution of the present invention, the airflow stabilizing valve module includes a second tooth seat, a second valve core, and a third spring;

[0021] The second tooth seat is fixedly arranged at the bottom of the flow stabilizing structure cavity;

[0022] The second valve core is slidably arranged at the connection between the top of the flow stabilizing structure cavity and the three-way connecting pipeline;

[0023] The third spring is arranged between the second tooth seat and the second valve core;

[0024] Wherein, the top end of the second valve core is semicircular.

[0025] In one solution of the present invention, the flow control valve module includes a threaded body seat, an adjustment component, and an inner hole retaining spring.

[0026] The threaded body seat is provided in the threaded hole at the top of the valve body, and the bottom of the threaded body seat is connected to the three-way connecting pipe, so as to control the flow rate of the gas by the depth of the threaded body seat;

[0027] The adjusting assembly is in transmission connection with the threaded body seat, and is used to adjust and lock the current depth of the threaded body seat;

[0028] The inner hole retaining ring is arranged in the threaded hole at the top of the valve body and is used to limit the threaded body seat.

[0029] In one of the solutions of the present invention, the bottom of the threaded body seat is in a gradually shrinking conical shape;

[0030] And / or, a rubber ring groove is provided on the outer side of the threaded body seat for installing a sealing ring.

[0031] In one embodiment of the present invention, the gas circuit formed by the pressure regulating valve module includes at least one of the following:

[0032] The sealing rubber layer on the outer side of the first valve core abuts against the bottom of the first tooth cover, and the top of the first valve core abuts against the first vent hole and the second vent hole. The first valve core is in a sealed state, closing the ventilation line that transports air from the lower air intake chamber to the upper pressure stabilizing chamber;

[0033] Alternatively, the sealing rubber layer on the outer side of the first valve core is completely separated from the bottom of the first tooth cover, the top of the first valve core is in contact with the second vent hole, the first valve core is in a semi-open state, and air is transported from the air inlet lower chamber to the pressure stabilizing upper chamber through the vent pipe provided at the center of the first valve core and the first vent hole;

[0034] Alternatively, the sealing rubber layer on the outside of the first valve core is completely separated from the bottom of the first tooth cover, the top of the first valve core is not in contact with the first air vent and the second air vent, the first valve core is in a fully open state, and the air flow is transported from the air inlet lower chamber to the pressure stabilizing upper chamber through the first air vent and the second air vent.

[0035] In one solution of the present invention, the regulating thread cover is formed in the threaded hole at the top of the valve body to form a pressure regulating cavity;

[0036] When the pressure in the pressure regulating cavity is greater than the pressure in the upper pressure stabilizing cavity, the pressure regulating cavity expands and the height position of the first valve core drops, so that the first valve core is in a semi-open state or a fully open state;

[0037] Alternatively, when the pressure in the pressure regulating cavity is lower than the pressure in the upper pressure stabilizing cavity, the pressure regulating cavity contracts and the height position of the first valve core rises, so that the first valve core is in a sealed state.

[0038] In one embodiment of the present invention, a pressure gauge is further included, which is provided on the three-way connecting pipeline and is used to display the pressure of the gas output through the gas outlet port B;

[0039] And / or, it further includes a filter screen, which is arranged between the air outlet end of the air inlet connector and the air inlet port A of the valve body, and is used to filter the pressurized gas delivered by the air inlet connector.

[0040] From the above technical solutions, it can be seen that the gas pressure and flow stabilizing device of the present invention has the following advantages:

[0041] 1. The pressure regulating valve module adjusts and stabilizes the pressure according to the different pressure differences in the pipeline, and automatically adjusts the pressure of the gas transported from the lower air inlet chamber to the upper pressure stabilizing chamber, so that the gas pressure and flow stabilizing device can stably output the airflow that meets the operating air pressure; and, through the airflow stabilizing valve module and the flow regulating valve module, the flow of the gas transported from the upper pressure stabilizing chamber to the flow stabilizing structure chamber is automatically adjusted, so that the gas flow and gas flow rate output by the gas pressure and flow stabilizing device can be stabilized within the range that meets the operating requirements; therefore, the utility model can automatically adjust the air pressure and airflow in the pressure and flow stabilizing device under different pressures, thereby reducing the gas demand during welding to a minimum, while ensuring that the gas demand during welding is met.

[0042] 2. The first valve core in the pressure regulating valve module is linked to the second valve core in the airflow stabilizing valve module. When the air outlet port B is opened, the gas flows out, the height position of the second valve core is lowered, and the air pressure in the flow stabilizing structure cavity is reduced. After the pressure is reduced to a certain level, the metal rubber sheet in the adjusting tooth cover is pressed down to lower the height position of the first valve core, so that the first valve core is in a semi-open or fully open state, and the air flow is transported from the air inlet lower cavity to the pressure stabilizing upper cavity to realize the ventilation function; therefore, the utility model can realize the output pressure adjustment of the airflow, and at the same time, the first valve core is in a sealed state when not started, thereby avoiding energy waste caused by excessive output pressure.

[0043] 3. The regulating tooth cover in the pressure regulating valve module is installed on the valve body by means of a threaded connection. By adjusting the connection depth of the thread, the initial size of the pressure regulating cavity can be adjusted simply and conveniently, which is convenient for the operator to operate and has low difficulty in getting started. By setting an adjusting component, the current depth of the threaded body seat can be adjusted and locked to achieve consistent ventilation volume and pressure each time it is used. By setting multiple sealing rings in the pressure regulating valve module, the airflow stabilizing valve module and the flow regulating valve module, the sealing performance of the device is good, and leakage is basically prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0045] Figure 1 A schematic diagram showing the cross-sectional structure of the entire utility model;

[0046] Figure 2 A schematic diagram showing the structure of the valve body of the utility model;

[0047] Figure 3 A schematic structural diagram showing a pressure regulating valve module of the present invention;

[0048] Figure 4 A schematic diagram showing the structure of the adjustable tooth cover of the present invention;

[0049] Figure 5 A schematic diagram showing the structure of the airflow stabilizing valve module of the present invention;

[0050] Figure 6 A schematic diagram showing the structure of a flow control valve module of the present invention;

[0051] Figure 7 A schematic diagram showing the structure of the air intake port side of the present invention;

[0052] Figure 8 It is a schematic diagram showing the structure of the gas outlet port side of the present invention.

[0053] The following are the descriptions of the reference numerals:

[0054] 1-valve body; 101-pressure stabilizing structure cavity; 1011-intake lower cavity; 1012-pressure stabilizing upper cavity; 102-flow stabilizing structure cavity; 103-three-way connecting pipe;

[0055] 2 - pressure regulating valve module; 201 - first tooth seat; 202 - first tooth cover; 2021 - first vent hole; 2022 - second vent hole; 203 - first valve core; 204 - first spring; 205 - adjustment tooth cover; 2051 - adjustment bolt; 2052 - second spring; 2053 - metal rubber sheet; 2054 - spring pressure piece;

[0056] 3-airflow stabilization valve module; 301-second tooth seat; 302-second valve core; 303-third spring;

[0057] 4-flow regulating valve module; 401-threaded body seat; 402-adjustment assembly; 403-inner hole retaining ring;

[0058] 5-Pressure gauge; 6-Filter. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0060] Please refer to the attached Figure 1-8 One embodiment of the present invention provides a gas pressure and flow stabilizing device, comprising a valve body 1, a pressure regulating valve module 2, an airflow stabilizing valve module 3 and a flow regulating valve module 4;

[0061] The valve body 1 has a pressure stabilizing structure cavity 101 and a flow stabilizing structure cavity 102 inside, and the pressure stabilizing structure cavity 101 and the flow stabilizing structure cavity 102 are connected through a three-way connecting pipe 103;

[0062] The pressure regulating valve module 2 is disposed inside the pressure stabilizing structural chamber 101, dividing the interior of the pressure stabilizing structural chamber 101 into a lower air intake chamber 1011 and an upper pressure stabilizing chamber 1012. The lower air intake chamber 1011 is communicated with the air intake port A of the valve body 1. The pressure regulating valve module 2 is configured to regulate the pressure of the gas transported from the lower air intake chamber 1011 to the upper pressure stabilizing chamber 1012.

[0063] The airflow stabilizing valve module 3 is disposed in the flow stabilizing structure cavity 102 , and the flow stabilizing structure cavity 102 is communicated with the air outlet port B of the valve body 1 ;

[0064] The flow regulating valve module 4 is provided on the three-way connecting pipeline 103 and is used to regulate the flow of the gas delivered to the flow stabilizing structure cavity 102 .

[0065] In this embodiment, the pressure regulating valve module 2 adjusts and stabilizes the pressure according to the different pressure differences in the pipeline, and automatically adjusts the pressure of the gas delivered from the lower air inlet chamber 1011 to the pressure stabilizing upper chamber 1012, so that the gas pressure and flow stabilizing device can stably output an airflow that meets the operating air pressure; and, through the airflow stabilizing valve module 3 and the flow regulating valve module 4, the flow of the gas delivered from the pressure stabilizing upper chamber 1012 to the flow stabilizing structure chamber 102 is automatically adjusted, so that the gas flow and gas flow rate output by the gas pressure and flow stabilizing device can be stabilized within a range that meets the operating requirements; therefore, the utility model can automatically adjust the air pressure and airflow in the pressure and flow stabilizing device under different pressures to minimize the gas demand during welding, while ensuring that the gas demand during welding is met.

[0066] In one embodiment of the present invention, the pressure regulating valve module 2 includes a first tooth seat 201, a first tooth cover 202, a first valve core 203, a first spring 204 and an adjusting tooth cover 205;

[0067] The first tooth seat 201 is fixed to the bottom of the lower air inlet cavity 1011, and a rubber ring groove is provided on the top of the first tooth seat 201 for installing a sealing ring;

[0068] The first tooth cover 202 is disposed between the air inlet lower chamber 1011 and the pressure stabilizing upper chamber 1012 . A first vent hole 2021 is disposed on the side of the first tooth cover 202 , and a second vent hole 2022 communicating with the first vent hole 2021 is disposed on the top of the first tooth cover 202 .

[0069] The first valve core 203 is slidably arranged along the receiving hole in the center of the first tooth cover 202. The first valve core 203 is slidably sleeved with the top of the first tooth seat 201. A sealing rubber layer is provided on the outside of the first valve core 203. A ventilation pipe is provided at the center of the first valve core 203. The top of the first valve core 203 is semicircular.

[0070] The first spring 204 is disposed between the first valve core 203 and the first tooth seat 201;

[0071] The regulating tooth cover 205 is fixedly arranged in the threaded hole at the top of the valve body 1, and the bottom of the regulating tooth cover 205 is in contact with the first valve core 203. The regulating tooth cover 205 is used to enable the first valve core 203 to adjust the air pressure.

[0072] In this embodiment, the pressure regulating valve module 2 can be used to achieve air pressure regulation, and automatically adjust the output air pressure under different pressures to minimize the gas demand during welding.

[0073] In one embodiment of the present invention, the adjusting tooth cover 205 further includes an adjusting bolt 2051 , a second spring 2052 , a metal rubber sheet 2053 , and a spring pressing sheet 2054 ;

[0074] The metal rubber sheet 2053 is disposed between the regulating tooth cover 205 and the threaded hole at the top of the valve body 1 . The metal rubber sheet 2053 is used to seal the threaded hole to form the pressure-stabilizing upper chamber 1012 , and the metal rubber sheet 2053 abuts against the top of the first valve core 203 .

[0075] The second spring 2052 is disposed on the top of the metal rubber sheet 2053 , and the second spring 2052 is embedded in the adjusting tooth cover 205 ;

[0076] The adjusting bolt 2051 and the spring pressing piece 2054 are arranged on the top of the adjusting tooth cover 205 to adjust the elastic stroke of the second spring 2052.

[0077] In one embodiment of the present invention, the airflow stabilizing valve module 3 includes a second tooth seat 301, a second valve core 302, and a third spring 303;

[0078] The second tooth seat 301 is fixedly arranged at the bottom of the flow stabilizing structure cavity 102;

[0079] The second valve core 302 is slidably disposed at the connection between the top of the flow stabilizing structure cavity 102 and the three-way connecting pipe 103;

[0080] The third spring 303 is disposed between the second tooth seat 301 and the second valve core 302;

[0081] The top end of the second valve core 302 is semicircular.

[0082] In one embodiment of the present invention, the flow control valve module 4 includes a threaded body seat 401, an adjustment component 402, and an inner hole retaining ring 403.

[0083] The threaded seat 401 is provided in the threaded hole at the top of the valve body 1 , and the bottom of the threaded seat 401 is connected to the three-way connecting pipe 103 , so as to control the flow of gas by adjusting the depth of the threaded seat 401 ;

[0084] The adjusting component 402 is in transmission connection with the threaded body seat 401 and is used to adjust and lock the current depth of the threaded body seat 401;

[0085] The inner hole retaining ring 403 is arranged in the threaded hole at the top of the valve body 1 to limit the threaded body seat 401.

[0086] In this embodiment, an adjustment component 402 is provided to adjust and lock the current depth of the threaded body seat 401 so as to achieve consistent ventilation volume and pressure each time it is used.

[0087] In one embodiment of the present invention, the bottom of the threaded body seat 401 is in a gradually shrinking conical shape;

[0088] And / or, a rubber ring groove is provided on the outer side of the threaded body seat 401 for installing a sealing ring.

[0089] In this embodiment, the bottom of the threaded body seat 401 is in a gradually shrinking cone shape, which makes it easy to control the depth of the threaded body seat 401 to achieve consistent ventilation volume and pressure each time it is used; and by providing a sealing ring, the device has good sealing performance, basically eliminating the occurrence of leakage.

[0090] In one embodiment of the present invention, the gas circuit formed by the pressure regulating valve module 2 includes at least one of the following:

[0091] The sealing rubber layer on the outer side of the first valve core 203 abuts against the bottom of the first tooth cover 202, and the top of the first valve core 203 abuts against the first vent hole 2021 and the second vent hole 2022. The first valve core 203 is in a sealed state, closing the ventilation line for transporting air from the lower air intake chamber 1011 to the upper pressure stabilizing chamber 1012.

[0092] Alternatively, the sealing rubber layer on the outer side of the first valve core 203 is completely separated from the bottom of the first tooth cover 202, the top of the first valve core 203 is in contact with the second vent hole 2022, the first valve core 203 is in a semi-open state, and air is transported from the air inlet lower chamber 1011 to the pressure stabilizing upper chamber 1012 through the ventilation pipeline provided at the center of the first valve core 203 and the first vent hole 2021;

[0093] Alternatively, the sealing rubber layer on the outside of the first valve core 203 is completely separated from the bottom of the first tooth cover 202, the top of the first valve core 203 is not in contact with the first air vent 2021 and the second air vent 2022, the first valve core 203 is in a fully open state, and the air flow is transported from the air inlet lower chamber 1011 to the pressure stabilizing upper chamber 1012 through the first air vent 2021 and the second air vent 2022.

[0094] In this embodiment, the first valve core 203 in the pressure regulating valve module 2 is linked to the second valve core 302 in the airflow stabilizing valve module 3. When the air outlet port B is opened, the gas flows out, the height position of the second valve core 302 is reduced, and the air pressure in the flow stabilizing structure cavity 102 is reduced. After the pressure is reduced to a certain level, the metal rubber sheet 2053 in the regulating tooth cover 205 is pressed down to reduce the height position of the first valve core 203, so that the first valve core 203 is in a semi-open or fully open state, and the airflow is transported from the air inlet lower cavity 1011 to the pressure stabilizing upper cavity 1012 to realize the ventilation function; therefore, the utility model can realize the output pressure adjustment of the airflow, and at the same time, the first valve core 203 is in a sealed state when not started, thereby avoiding energy waste caused by excessive output pressure.

[0095] In one embodiment of the present utility model, the regulating thread cover 205 is formed in the threaded hole at the top of the valve body 1 to form a pressure regulating cavity;

[0096] When the pressure in the pressure regulating cavity is greater than the pressure in the upper pressure stabilizing cavity 1012 , the pressure regulating cavity expands and the height position of the first valve core 203 drops, so that the first valve core 203 is in a semi-open state or a fully open state;

[0097] Alternatively, when the pressure in the pressure regulating cavity is lower than the pressure in the pressure stabilizing upper cavity 1012 , the pressure regulating cavity contracts and the height position of the first valve core 203 rises, so that the first valve core 203 is in a sealed state.

[0098] In this embodiment, the pressure regulating cavity is formed by the internal cavity of the regulating tooth cover 205 and the metal rubber sheet 2053, and by arranging a second spring 2052 in the pressure regulating cavity for support, the pressure regulating cavity has a longer service life under high pressure environment. At the same time, the metal part in the metal rubber sheet 2053 is adapted to the first valve core 2032 to avoid damage to the rubber part.

[0099] In one embodiment of the present invention, a pressure gauge 5 is further included. The pressure gauge 5 is provided on the three-way connecting pipe 103 and is used to display the pressure of the gas output through the gas outlet port B.

[0100] And / or, it further includes a filter screen, which is arranged between the air outlet end of the air inlet connector and the air inlet port A of the valve body 1, and is used to filter the pressurized gas delivered by the air inlet connector.

[0101] In this embodiment, the pressure change of the output pressure is displayed by the pressure gauge 5, which makes it convenient for the operator to adjust the pressure regulating valve module 2 in time by observing the reading of the pressure gauge; and by setting a filter net, impurities in the compressed gas can be filtered to avoid affecting the normal operation of the device and extend its service life.

[0102] The gas pressure and flow stabilizing device of the utility model has the following advantages:

[0103] 1. The regulating tooth cover 205 in the pressure regulating valve module 2 is installed on the valve body 1 by means of a threaded connection. By adjusting the connection depth of the thread, the initial size of the pressure regulating cavity can be adjusted simply and conveniently, which is convenient for the operator to operate and has low difficulty in getting started; and by setting the adjusting component 402, the current depth of the threaded body seat 401 is adjusted and locked to achieve consistent ventilation volume and pressure each time it is used; by setting multiple sealing rings in the pressure regulating valve module 2, the airflow stabilizing valve module 3 and the flow regulating valve module 4, the sealing performance of the device is good, and leakage is basically prevented.

[0104] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gas pressure and flow stabilizing device, characterized in that: It comprises a valve body (1), a pressure regulating valve module (2), an airflow stabilizing valve module (3) and a flow regulating valve module (4); The valve body (1) has a pressure stabilizing structure cavity (101) and a flow stabilizing structure cavity (102) inside, and the pressure stabilizing structure cavity (101) and the flow stabilizing structure cavity (102) are connected via a three-way connecting pipe (103); The pressure regulating valve module (2) is arranged inside the pressure stabilizing structural cavity (101), dividing the interior of the pressure stabilizing structural cavity (101) into an air intake lower cavity (1011) and a pressure stabilizing upper cavity (1012); the air intake lower cavity (1011) is communicated with the air intake port A of the valve body (1); and the pressure regulating valve module (2) is configured to regulate the pressure of the gas transported from the air intake lower cavity (1011) to the pressure stabilizing upper cavity (1012); The airflow stabilizing valve module (3) is arranged in the flow stabilizing structure cavity (102), and the flow stabilizing structure cavity (102) is in communication with the air outlet port B of the valve body (1); The flow regulating valve module (4) is arranged on the three-way connecting pipeline (103), and the flow regulating valve module (4) comprises a threaded body seat (401), an adjusting component (402), and an inner hole retaining spring (403); the threaded body seat (401) is arranged in a threaded hole at the top of the valve body (1), and the bottom of the threaded body seat (401) is connected to the three-way connecting pipeline (103); the bottom of the threaded body seat (401) is in a gradually shrinking conical shape, and is used to adjust the flow rate of the gas delivered to the flow stabilizing structure cavity (102) by adjusting the depth of the threaded body seat (401).

2. The gas pressure and flow stabilizing device according to claim 1, characterized in that: The pressure regulating valve module (2) comprises a first tooth seat (201), a first tooth cover (202), a first valve core (203), a first spring (204) and a regulating tooth cover (205); The first tooth seat (201) is fixed to the bottom of the air inlet lower cavity (1011), and a rubber ring groove is provided on the top of the first tooth seat (201) for installing a sealing ring; The first tooth cover (202) is arranged between the air inlet lower chamber (1011) and the pressure stabilizing upper chamber (1012); a first vent hole (2021) is provided on the side of the first tooth cover (202); and a second vent hole (2022) in communication with the first vent hole (2021) is provided on the top of the first tooth cover (202); The first valve core (203) is slidably arranged along the accommodating hole in the center of the first tooth cover (202), the first valve core (203) is slidably sleeved with the top of the first tooth seat (201), a sealing rubber layer is provided on the outside of the first valve core (203), a ventilation pipeline is provided at the center of the first valve core (203), and the top of the first valve core (203) is semicircular; The first spring (204) is arranged between the first valve core (203) and the first tooth seat (201); The regulating tooth cover (205) is fixedly arranged in the threaded hole at the top of the valve body (1), and the bottom of the regulating tooth cover (205) is in contact with the first valve core (203). The regulating tooth cover (205) is used to enable the first valve core (203) to achieve the function of regulating air pressure.

3. The gas pressure and flow stabilizing device according to claim 2, characterized in that: The adjusting tooth cover (205) further includes an adjusting bolt (2051), a second spring (2052), a metal rubber sheet (2053), and a spring pressing sheet (2054); The metal rubber sheet (2053) is arranged between the regulating tooth cover (205) and the threaded hole at the top of the valve body (1), and the metal rubber sheet (2053) is used to seal the threaded hole to form the pressure-stabilizing upper chamber (1012), and the metal rubber sheet (2053) abuts against the top end of the first valve core (203); The second spring (2052) is arranged on the top of the metal rubber sheet (2053), and the second spring (2052) is embedded in the adjusting tooth cover (205); The adjusting bolt (2051) and the spring pressing piece (2054) are arranged on the top of the adjusting tooth cover (205) and are used to adjust the elastic stroke of the second spring (2052).

4. The gas pressure and flow stabilizing device according to claim 2, characterized in that: The airflow stabilizing valve module (3) comprises a second tooth seat (301), a second valve core (302), and a third spring (303); The second tooth seat (301) is fixedly arranged at the bottom of the flow stabilizing structure cavity (102); The second valve core (302) is slidably arranged at the connection between the top of the flow stabilizing structure cavity (102) and the three-way connecting pipeline (103); The third spring (303) is arranged between the second tooth seat (301) and the second valve core (302); Wherein, the top end of the second valve core (302) is semicircular.

5. The gas pressure and flow stabilizing device according to claim 2, characterized in that: The adjusting component (402) is in transmission connection with the threaded body seat (401) and is used to adjust and lock the current depth of the threaded body seat (401); The inner hole retaining ring (403) is arranged in the threaded hole at the top of the valve body (1) and is used to limit the threaded body seat (401).

6. The gas pressure and flow stabilizing device according to claim 5, characterized in that: The outer side of the threaded body seat (401) is provided with a rubber ring groove for installing a sealing ring.

7. The gas pressure and flow stabilizing device according to any one of claims 2 to 6, characterized in that: The gas path formed by the pressure regulating valve module (2) includes at least one of the following: The sealing rubber layer on the outer side of the first valve core (203) abuts against the bottom of the first tooth cover (202), and the top of the first valve core (203) abuts against the first vent hole (2021) and the second vent hole (2022). The first valve core (203) is in a sealed state, closing the ventilation line for transporting air from the air inlet lower chamber (1011) to the pressure stabilizing upper chamber (1012); Alternatively, the sealing rubber layer on the outer side of the first valve core (203) is completely separated from the bottom of the first tooth cover (202), the top of the first valve core (203) is in contact with the second vent hole (2022), the first valve core (203) is in a semi-open state, and air flow is transported from the air intake lower chamber (1011) to the pressure stabilizing upper chamber (1012) through the vent pipe provided at the center of the first valve core (203) and the first vent hole (2021); Alternatively, the sealing rubber layer on the outside of the first valve core (203) is completely separated from the bottom of the first tooth cover (202), the top of the first valve core (203) does not abut against the first air vent (2021) and the second air vent (2022), the first valve core (203) is in a fully open state, and the air flow is transported from the air inlet lower chamber (1011) to the pressure stabilizing upper chamber (1012) through the first air vent (2021) and the second air vent (2022).

8. The gas pressure and flow stabilizing device according to claim 7, characterized in that: The regulating thread cover (205) is formed in the threaded hole at the top of the valve body (1) to form a pressure regulating cavity; When the pressure of the pressure regulating cavity is greater than the pressure of the pressure stabilizing upper cavity (1012), the pressure regulating cavity expands and the height position of the first valve core (203) decreases, so that the first valve core (203) is in a semi-open state or a fully open state; Alternatively, when the pressure of the pressure regulating cavity is lower than the pressure of the pressure stabilizing upper cavity (1012), the pressure regulating cavity contracts and the height position of the first valve core (203) rises, so that the first valve core (203) is in a sealed state.

9. The gas pressure and flow stabilizing device according to claim 8, characterized in that: It also includes a pressure gauge, which is arranged on the three-way connecting pipeline (103) and is used to display the pressure of the gas output through the gas outlet port B.

10. The gas pressure and flow stabilizing device according to claim 8, characterized in that: It also includes a filter screen (6), which is arranged between the air intake lower chamber (1011) and the air intake port A of the valve body.

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