CN217164931U

CN217164931U - Gas transmission pressure regulating device, gas supply device for spraying equipment and powder supply center

Info

Publication number: CN217164931U
Application number: CN202123448768.XU
Authority: CN
Inventors: 林江; 林国正
Original assignee: Guangdong Zeheng Intelligent Technology Co ltd
Current assignee: Guangdong Zeheng Intelligent Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-12
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a gas transmission pressure regulating device, including air inlet, gas outlet, low pressure gas transmission passageway and high pressure gas transmission passageway, the air inlet respectively with the access connection of low pressure gas transmission passageway and high pressure gas transmission passageway, the gas outlet respectively with the exit linkage of low pressure gas transmission passageway and high pressure gas transmission passageway, low pressure gas transmission passageway with it all is equipped with gas transmission valve to set up on the high pressure gas transmission passageway, be provided with first air-vent valve in the low pressure gas transmission passageway, first air-vent valve set up in between the entry and the export of low pressure gas transmission passageway. The utility model provides a pair of gas transmission pressure regulating device, be used for spraying equipment's air feeder and supply powder center, the function is perfect more, the air feed effect is better.

Description

Gas transmission pressure regulating device, gas supply device for spraying equipment and powder supply center

Technical Field

The utility model relates to a powder spraying technical field, concretely relates to gas transmission pressure regulating device, be used for spraying equipment's air feeder and supply powder center.

Background

Along with the rapid development of science and technology, the air supply device is welcomed by industrial equipment, most of light industrial products and heavy industrial equipment in the market at present adopt an air pump or an air supply system, the overall working efficiency can be improved, certain labor force can be saved, an electric air pump is mainly adopted, a piston in an air cylinder in the air pump is driven to move freely through power provided by external force, the piston compresses air in the air cylinder to an air outlet of the air cylinder in the process of unidirectional movement, and the compressed air is pushed into an air storage device needing to be inflated.

Chinese patent CN201920102558.9 discloses an air supply pressure regulating device on spraying equipment, including main intake pipe, first branch pipe and second branch pipe, first branch pipe communicates with each other with main intake pipe, and second branch pipe communicates with each other with main intake pipe, has arranged first atmospheric pressure on first branch pipe and has adjusted the table, has arranged first excessive pressure safety valve on first branch pipe the check valve has been arranged on first branch pipe, this kind of structure is fairly simple, and mainly used atmospheric pressure is to spouting the influence of picture quality, and the function is fairly single.

SUMMERY OF THE UTILITY MODEL

The utility model provides a function is perfect more, the better air feeder of air feed effect is pressed the device and is used for spraying equipment's air feeder.

In order to realize the utility model discloses a purpose, the utility model provides a gas transmission pressure regulating device, including air inlet, gas outlet, low pressure gas transmission passageway and high pressure gas transmission passageway, the air inlet respectively with the access connection of low pressure gas transmission passageway and high pressure gas transmission passageway, the gas outlet respectively with the exit linkage of low pressure gas transmission passageway and high pressure gas transmission passageway, low pressure gas transmission passageway with it all is equipped with gas transmission valve to set up on the high pressure gas transmission passageway, be provided with first air-vent valve in the low pressure gas transmission passageway, first air-vent valve set up in between the entry and the export of low pressure gas transmission passageway.

Preferably, the high-pressure gas transmission channel comprises a first gas transmission channel and a second gas transmission channel, inlets of the first gas transmission channel and the second gas transmission channel are both connected with the gas inlet, and the first gas transmission channel and the second gas transmission channel are both provided with gas transmission valves, the gas outlets comprise a first gas outlet and a second gas outlet, the first air outlet is positioned at the tail end of the first air transmission channel, the second air outlet is positioned at the tail end of the second air transmission channel, the first gas transmission channel is provided with a first connecting port, the second gas transmission channel is provided with a second connecting port, the first connecting port is positioned between the inlet of the first gas transmission channel and the first gas outlet, the second connecting port is positioned between the inlet of the second gas transmission channel and the second gas outlet, and the gas transmission valve is positioned between the inlet of the high-pressure gas transmission channel and the connecting port.

Preferably, the low-pressure gas transmission channel further comprises a first diversion channel and a second diversion channel, a third connecting port is arranged at the tail end of the first diversion channel, a fourth connecting port is arranged at the tail end of the second diversion channel, one end of the first pressure regulating valve is connected with the inlet of the low-pressure gas transmission channel, and the other end of the first pressure regulating valve is connected with the inlets of the first diversion channel and the second diversion channel through the gas transmission valve.

Preferably, the gas transmission pressure regulating device still includes first circulation passageway, the air inlet is located in the first circulation passageway, first circulation passageway one side be equipped with the connector that low pressure gas transmission passageway and high pressure gas transmission passageway are connected, the opposite side is equipped with the valve island subassembly, the valve island subassembly includes valve island and control valve, the valve island with the control valve is connected, just the valve island is a plurality ofly.

Preferably, the utility model also provides an air feeder for spraying equipment, including admission valve, pressure regulating subassembly and defeated gas pressure regulating device, pressure regulating subassembly's one end with the admission valve is connected, pressure regulating subassembly's the other end with defeated gas pressure regulating device connects, defeated gas pressure regulating device is equipped with the gas outlet.

Preferably, the gas supply device further comprises a second gas transmission device and a second pressure regulating valve, one end of the second pressure regulating valve is connected with the gas transmission pressure regulating device, and the other end of the second pressure regulating valve is connected with the second gas transmission device.

Preferably, the gas supply installation still includes the fixed plate, be equipped with the supporting shoe on the fixed plate, the supporting shoe is a plurality of, a plurality of supporting shoes are followed the tip of fixed plate sets gradually to the middle part, a plurality of supporting shoe one end with the fixed plate is connected, the other end for the fixed plate upwards outstanding setting and with pressure regulating subassembly, gas transmission pressure regulating device and second gas transmission device fixed connection, still be equipped with electrically controlled device and controlling means on the fixed plate, controlling means is located just keep away from on the fixed plate a plurality of supporting shoe settings, electrically controlled device with controlling means connects.

Preferably, the second gas transmission device comprises a second circulation channel, a high-pressure channel and a low-pressure channel, an inlet of the second circulation channel is connected with the second pressure regulating valve, inlets of the high-pressure channel and the low-pressure channel are connected with an outlet of the second circulation channel, gas transmission valves are arranged on the high-pressure channel and the low-pressure channel, the high-pressure channel comprises a third gas transmission channel and a fourth gas transmission channel, gas transmission valves are arranged on the third gas transmission channel and the fourth gas transmission channel, a fifth connecting port and a third gas outlet are arranged on the third gas transmission channel, a sixth connecting port and a fourth gas outlet are arranged on the fourth gas transmission channel, the third gas outlet and the fourth gas outlet are respectively located at the tail ends of the third gas transmission channel and the fourth gas transmission channel, and the fifth connecting port is located between the inlet of the third gas transmission channel and the third gas outlet, the sixth connecting port is located between the inlet of the fourth gas transmission channel and the fourth gas outlet, and the gas transmission valve is located between the inlet of the high-pressure channel and the connecting port.

Preferably, the low-pressure channel comprises a third pressure regulating valve, a third diversion channel and a fourth diversion channel, the tail ends of the third diversion channel and the fourth diversion channel are respectively provided with a seventh connecting port and an eighth connecting port, one end of the third pressure regulating valve is connected with the inlet of the low-pressure channel, and the other end of the third pressure regulating valve is connected with the inlets of the third diversion channel and the fourth diversion channel through gas delivery valves.

Preferably, the utility model also provides a supply powder center, including box and air feeder, its characterized in that, still be equipped with on the box and supply the powder case, take out the powder device and lead to the valve body more, supply to be equipped with feed inlet and discharge gate on the powder case, lead to the valve body more with the feed inlet is connected, lead to the valve body more still with take out the powder device with air feeder connects, supply the powder case to be equipped with outward and supply the spray gun connector of powder incasement portion connection.

The utility model has the advantages that: the utility model provides a function is more perfect, the better air feed effect's of air delivery pressure regulating device, be used for spraying equipment's air feeder and supply powder center.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual size, emphasis instead being placed upon illustrating the subject matter.

Fig. 1 is a schematic structural diagram of an air supply device for a spraying apparatus in a top view state according to an embodiment of the present invention;

fig. 2 is a perspective view of a specific structure of an air supply device for a spraying apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first conveying device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second conveying device according to an embodiment of the present invention;

fig. 5 is a specific flowchart of a connection port and an air outlet provided in an embodiment of the present invention;

fig. 6 is a schematic side view of a powder supply center according to an embodiment of the present invention;

in the figure: 1-air inlet valve, 10-fixing plate, 11-pressure regulating assembly, 2-first flow channel, 21-control valve, 22-first pressure regulating valve, 23-valve island, 24-first air transmission channel, 241-first connection port, 242-first air outlet, 25-second air transmission channel, 251-second connection port, 252-second air outlet, 26-first flow dividing channel, 261-third connection port, 27-second flow dividing channel, 271-fourth connection port, 3-second pressure regulating valve, 4-second flow channel, 41-third pressure regulating valve, 42-third air transmission channel, 421-fifth connection port, 422-third air outlet, 43-fourth air transmission channel, 431-fourth air outlet, 432-sixth connection port, 44-a third diversion channel, 441-a seventh connecting port, 45-a fourth diversion channel, 451-an eighth connecting port, 5-an electric control device, 6-a control device, 7-an air conveying valve, 8-an air supply device, 9-a powder pumping device and 91-a multi-way valve body.

Detailed Description

To facilitate an understanding of the present invention, the present invention will now be described more fully with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this document belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, and reference to high pressure and low pressure within this specification is not to be taken as a specific value, but rather to be taken as two pressures having a difference in magnitude, and not to represent a specific value.

Referring to fig. 1-6, an embodiment of the present invention provides a pressure regulating device for gas transmission, including an air inlet, an air outlet, a low pressure gas transmission channel and a high pressure gas transmission channel, wherein the air inlet is connected to inlets of the low pressure gas transmission channel and the high pressure gas transmission channel, the air outlet is connected to outlets of the low pressure gas transmission channel and the high pressure gas transmission channel, gas transmission valves 7 are disposed on the low pressure gas transmission channel and the high pressure gas transmission channel, a first pressure regulating valve 22 is disposed in the low pressure gas transmission channel, and the first pressure regulating valve 22 is disposed between an inlet and an outlet of the low pressure gas transmission channel.

Referring to fig. 1-6, the utility model provides an air feeder for spraying equipment, gas gets into from the air inlet, then flow into first gas transmission passageway 24 and second gas transmission passageway 25, the remainder jumps the monkeys through first air-vent valve 22 and gets into in first diversion channel 26 and the second diversion channel 27, then the gas after the compression flows into first connector 241 and second connector 251 respectively through third connector 261 and fourth connector 271, finally supply gas or clear blowing to the external equipment through first gas outlet 242 and second gas outlet 252, clear blowing through high-pressure gas and low-pressure gas collocation can make the clear efficiency of blowing better (the high-pressure gas of single use can have some residual cleaning, the low-pressure gas of single use can cause the air feed insufficient), gas transmission valve 7 generally is solenoid valve or other control valve 21.

The utility model has the advantages that: compress the air through a plurality of air-vent valves, then use through the collocation of high-pressure gas and low-pressure gas and clear up equipment, high-pressure gas and low-pressure gas collocation are clear to blow and can make and blow the efficiency better (the high-pressure gas of exclusive use can exist some residue and clear up, and the low-pressure gas of exclusive use can cause the air feed not enough).

Referring to fig. 3, in a preferred embodiment, the high pressure gas transmission channel includes a first gas transmission channel 24 and a second gas transmission channel 25, inlets of the first gas transmission channel 24 and the second gas transmission channel 25 are connected with a gas inlet, and gas transmission valves 7 are arranged on the first gas transmission channel 24 and the second gas transmission channel 25, the gas outlets comprise a first gas outlet 242 and a second gas outlet 252, the first gas outlet 242 is positioned at the tail end of the first gas transmission channel 24, the second gas outlet 252 is positioned at the tail end of the second gas transmission channel 25, a first connecting port 241 is arranged on the first gas transmission channel 24, a second connecting port 251 is arranged on the second gas transmission channel 25, the first connecting port 241 is positioned between the inlet of the first gas transmission channel 24 and the first gas outlet 242, the second connecting port 251 is positioned between the inlet of the second gas transmission channel 25 and the second gas outlet 252, and the gas transmission valves 7 are positioned between the inlet of the high-pressure gas transmission channel and the connecting ports. The gas in the first gas transmission channel 24 and the second gas transmission channel 25 is controlled through the gas transmission valve 7, when high-pressure gas is needed for gas supply, the gas transmission valve 7 on the high-pressure gas transmission channel is opened, when low-pressure gas is needed for gas supply, the gas transmission valve 7 on the low-pressure gas transmission channel is opened, and when low-pressure gas is needed for gas supply, the gas transmission valve 7 on the low-pressure gas transmission channel is closed, and the gas transmission valve 7 on the high-pressure gas transmission channel is closed.

Referring to fig. 3, in a preferred embodiment, the low pressure gas transmission channel further includes a first diversion channel 26 and a second diversion channel 27, a third connection port 261 is disposed at a terminal of the first diversion channel 26, a fourth connection port 271 is disposed at a terminal of the second diversion channel 27, one end of the first pressure regulating valve 22 is connected to an inlet of the low pressure gas transmission channel, and the other end is connected to inlets of the first diversion channel 26 and the second diversion channel 27 through the gas transmission valve 7.

Referring to fig. 3, in a further preferred embodiment, the air pressure regulating device further includes a first flow channel 2, the air inlet is located in the first flow channel 2, one side of the first flow channel 2 is provided with a connection port connected to the low pressure air channel and the high pressure air channel, the other side of the first flow channel 2 is provided with a valve island 23 assembly, the valve island 23 assembly includes a valve island 23 and a control valve 21, the valve island 23 is connected to the control valve 21, and the number of the valve islands 23 is multiple. The gas is conveyed via the first flow channel 2 into the first gas supply channel 24, the second gas supply channel 25 and the first and second

flow dividing channels

26, 27.

Referring to fig. 1-2, in a further preferred embodiment, the present invention further provides an air supply device for a spraying apparatus, comprising an air inlet valve 1, a pressure regulating assembly 11 and an air transmission pressure regulating device, wherein one end of the pressure regulating assembly 11 is connected to the air inlet valve 1, the other end of the pressure regulating assembly 11 is connected to the air transmission pressure regulating device, and the air transmission pressure regulating device is provided with an air outlet.

Referring to fig. 1-5, the air pressure regulating device and the air supply device for spraying equipment provided by the present invention first connect the interfaces of the air inlet valve 1, the air pressure regulating device and the second air transmission device, then open the air inlet valve 1, let the air in through the air inlet valve 1, then regulate the pressure through the pressure regulating assembly 11, and deliver the pressure-regulated air to the first flow channel 2 of the air pressure regulating device, then flow into the first air transmission channel 24, the second air transmission channel 25 and the low pressure air transmission channel through the first flow channel 2, when the air enters the low pressure air transmission channel, the pressure is regulated again through the first pressure regulating valve 22, then the pressure-regulated air flows into the first diversion channel 26 and the second diversion channel 27, then the air in the first diversion channel 26 and the second diversion channel 27 flows into the first connection interface 241 and the second connection interface 251 through the third connection port 261 and the fourth connection port 271, then, the first air outlet 242 and the second air outlet 252 perform a cleaning and blowing or air supply function for the external device, and the specific cleaning and blowing function is as follows: firstly, closing the gas transmission valve 7 on the low-pressure gas transmission channel, then simultaneously opening the gas transmission valves 7 on the first gas transmission channel 24 and the second gas transmission channel 25 to carry out the cleaning and blowing of external equipment, closing the gas transmission valves 7 on the first gas transmission channel 24 and the second gas transmission channel 25 after the cleaning and blowing is carried out for about five seconds, opening the gas transmission valves 7 on the low-pressure gas transmission channel, carrying out the cleaning and blowing of the external equipment on the gas in the first diversion channel 26 and the gas in the second diversion channel 27, and then carrying out the reciprocating circulation until the cleaning and blowing process of the external equipment is completed; partial gas in the first circulation channel 2 enters the second pressure regulating valve 3 for pressure regulation, the gas with pressure regulation flows into the high-pressure channel and the low-pressure channel through the second circulation channel 4, the specific flowing process and the gas using process are the same as the gas circulation process in the gas transmission pressure regulating device, and the description is omitted here.

Assuming that the gas entering the intake valve 1 is 8 kg, the gas entering the first gas delivery passage 24 and the second gas delivery passage 25 is 6 kg, the gas pressure entering the first diversion passage 26 and the second diversion passage 27 is 4 kg, the gas pressure entering the third gas delivery passage 42 and the fourth gas delivery passage 43 is 2 kg, and the gas pressure entering the third diversion passage 44 and the fourth diversion passage 45 is 1 kg. (this example is for reference only)

Referring to fig. 1-2, in a preferred embodiment, the gas supply device further includes a second gas transmission device and a second pressure regulating valve 3, one end of the second pressure regulating valve 3 is connected to the gas transmission pressure regulating device, and the other end of the second pressure regulating valve 3 is connected to the second gas transmission device.

Referring to fig. 1-2, in a further preferred embodiment, the air supply device further includes a fixing plate 10, a plurality of supporting blocks are disposed on the fixing plate 10, the plurality of supporting blocks are sequentially disposed from an end portion to a middle portion of the fixing plate 10, one end of each of the plurality of supporting blocks is connected to the fixing plate 10, the other end of each of the plurality of supporting blocks protrudes upward relative to the fixing plate 10 and is fixedly connected to the pressure regulating assembly 11, the air and pressure delivery device and the second air delivery device, an electric control device 5 and a control device 6 are further disposed on the fixing plate 10, the control device 6 is located on the fixing plate 10 and is far away from the plurality of supporting blocks, and the electric control device 5 is connected to the control device 6. The fixed plate 10 is mainly used for fixing the pressure regulating assembly 11, the gas transmission pressure regulating device and the second gas transmission device, and a plurality of matching grooves are further formed in the fixed plate 10 and are mainly used for being connected with external equipment.

Referring to fig. 4, in a preferred embodiment, the second gas transmission device includes a second flow channel 4, a high pressure channel and a low pressure channel, an inlet of the second flow channel 4 is connected to the second pressure regulating valve 3, inlets of the high pressure channel and the low pressure channel are connected to an outlet of the second flow channel 4, and gas transmission valves 7 are disposed on the high pressure channel and the low pressure channel. The second gas transmission device has the same structure as the gas transmission and pressure regulation device, so the implementation effect of the second gas transmission device is not repeated, the high-pressure channel comprises a third gas transmission channel 42 and a fourth gas transmission channel 43, gas transmission valves 7 are arranged on the third gas transmission channel 42 and the fourth gas transmission channel 43, a fifth connecting port 421 and a third gas outlet 422 are arranged on the third gas transmission channel 42, a sixth connecting port 432 and a fourth gas outlet 431 are arranged on the fourth gas transmission channel 43, the third gas outlet 422 and the fourth gas outlet 431 are respectively located at the tail ends of the third gas transmission channel 42 and the fourth gas transmission channel 43, the fifth connecting port 421 is located between the inlet of the third gas transmission channel 42 and the third gas outlet 422, the sixth connecting port 432 is located between the inlet of the fourth gas transmission channel 43 and the fourth gas outlet 431, and the gas transmission valve 7 is located between the inlet of the high-pressure channel and the inlet of the high-pressure channel. The seventh and

eighth connection ports

441 and 451 are connected to the fifth and

sixth connection ports

421 and 432, respectively, so that the low pressure gas and the high pressure gas can be used in combination.

Referring to fig. 4, in a preferred embodiment, the low pressure channel includes a third pressure regulating valve 41, a third diversion channel 44 and a fourth diversion channel 45, the ends of the third diversion channel 44 and the fourth diversion channel 45 are respectively provided with a seventh connection port 441 and an eighth connection port 451, one end of the third pressure regulating valve 41 is connected with the inlet of the low pressure channel, and the other end is connected with the inlets of the third diversion channel 44 and the fourth diversion channel 45 through the gas transmission valve 7. (the gas valves 7 on the first gas transmission channel 24, the second gas transmission channel 25, the third gas transmission channel 42, the fourth gas transmission channel 43, the low-pressure gas transmission channel and the low-pressure channel adopt the same gas valve 7 and have basically the same function)

Referring to fig. 6, in a preferred embodiment, the present invention further provides a powder supply center, which includes a box body and an air supply device, and is characterized in that the box body is further provided with a powder supply box, a powder pumping device and a multi-way valve body, the powder supply box is provided with a feed inlet and a discharge outlet, the multi-way valve body is connected to the feed inlet, the multi-way valve body is further connected to the powder pumping device and the air supply device, and the powder supply box is externally provided with a spray gun connector connected to the interior of the powder supply box.

The utility model provides a supply whitewashed center, earlier carry out corresponding tube coupling with external equipment outside trachea and external equipment, in the use, earlier carry the powder through external equipment earlier and take out in the powder device 9, then transport the powder through taking out the powder device 9 and lead to the valve body 91 more, air feeder 8 supplies the air to leading to valve body 91 more, ensure that the powder can carry and supply in the powder case, then carry the feed inlet that supplies the powder case and carry and supply powder incasement portion through leading to the valve body 91 more, then use the spray gun to connect the spray gun connector and will supply the powder in the powder case to extract and use, thereby accomplish spraying work. The feed inlet is divided into a new powder feed inlet and a recovered powder feed inlet.

The utility model has the advantages that: the utility model provides a gas transmission pressure regulating device with more perfect function and better gas supply effect, a gas supply device for spraying equipment and a powder supply center.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The utility model provides a gas transmission pressure regulating device, its characterized in that includes air inlet, gas outlet, low pressure gas transmission passageway and high pressure gas transmission passageway, the air inlet respectively with the entry linkage of low pressure gas transmission passageway and high pressure gas transmission passageway, the gas outlet respectively with the exit linkage of low pressure gas transmission passageway and high pressure gas transmission passageway, low pressure gas transmission passageway with high pressure gas transmission passageway is last to be provided with all to be equipped with gas transmission valve, be provided with first air-vent valve in the low pressure gas transmission passageway, first air-vent valve set up in between the entry and the export of low pressure gas transmission passageway.

2. The gas transmission pressure regulating device according to claim 1, wherein the high pressure gas transmission channel comprises a first gas transmission channel and a second gas transmission channel, inlets of the first gas transmission channel and the second gas transmission channel are both connected with the gas inlet, gas transmission valves are arranged on the first gas transmission channel and the second gas transmission channel, the gas outlet comprises a first gas outlet and a second gas outlet, the first gas outlet is arranged at the tail end of the first gas transmission channel, the second gas outlet is arranged at the tail end of the second gas transmission channel, a first connecting port is arranged on the first gas transmission channel, a second connecting port is arranged on the second gas transmission channel, the first connecting port is arranged between the inlet of the first gas transmission channel and the first gas outlet, and the second connecting port is arranged between the inlet of the second gas transmission channel and the second gas outlet, the gas transmission valve is positioned between the inlet of the high-pressure gas transmission channel and the connecting port.

3. The gas transmission and pressure regulation device of claim 2, wherein the low-pressure gas transmission channel further comprises a first diversion channel and a second diversion channel, a third connection port is arranged at the tail end of the first diversion channel, a fourth connection port is arranged at the tail end of the second diversion channel, one end of the first pressure regulating valve is connected with the inlet of the low-pressure gas transmission channel, and the other end of the first pressure regulating valve is connected with the inlets of the first diversion channel and the second diversion channel through the gas transmission valve.

4. The gas transmission pressure regulating device according to claim 1, further comprising a first circulation channel, wherein the gas inlet is located in the first circulation channel, one side of the first circulation channel is provided with a connection port connected with the low-pressure gas transmission channel and the high-pressure gas transmission channel, the other side of the first circulation channel is provided with a valve island assembly, the valve island assembly comprises a valve island and a control valve, the valve island is connected with the control valve, and the number of the valve islands is multiple.

5. An air supply device for spraying equipment, which is characterized by comprising an air inlet valve, a pressure regulating component and the air transmission pressure regulating device as claimed in any one of claims 1 to 4, wherein one end of the pressure regulating component is connected with the air inlet valve, the other end of the pressure regulating component is connected with the air transmission pressure regulating device, and the air transmission pressure regulating device is provided with an air outlet.

6. The gas supply device for a painting apparatus according to claim 5, further comprising a second gas supply device and a second pressure regulating valve, wherein one end of the second pressure regulating valve is connected to the gas supply pressure regulating device, and the other end of the second pressure regulating valve is connected to the second gas supply device.

7. The gas supply device for the spraying equipment according to claim 6, wherein the gas supply device further comprises a fixing plate, a plurality of supporting blocks are arranged on the fixing plate, the supporting blocks are arranged in sequence from the end part to the middle part of the fixing plate, one ends of the supporting blocks are connected with the fixing plate, the other ends of the supporting blocks are arranged upwards in a protruding mode relative to the fixing plate and fixedly connected with the pressure regulating assembly, the gas transmission pressure regulating device and the second gas transmission device, an electric control device and a control device are further arranged on the fixing plate, the control device is located on the fixing plate and far away from the supporting blocks, and the electric control device is connected with the control device.

8. The gas supply device for painting equipment according to claim 6, wherein the second gas transmission device includes a second flow channel, a high pressure channel, and a low pressure channel, an inlet of the second flow channel is connected to the second pressure regulating valve, inlets of the high pressure channel and the low pressure channel are connected to an outlet of the second flow channel, gas transmission valves are disposed on the high pressure channel and the low pressure channel, the high pressure channel includes a third gas transmission channel and a fourth gas transmission channel, gas transmission valves are disposed on the third gas transmission channel and the fourth gas transmission channel, a fifth connection port and a third gas outlet are disposed on the third gas transmission channel, a sixth connection port and a fourth gas outlet are disposed on the fourth gas transmission channel, the third gas outlet and the fourth gas outlet are respectively located at ends of the third gas transmission channel and the fourth gas transmission channel, the fifth connection port is located between an inlet of the third gas transmission channel and the third gas outlet, the sixth connecting port is positioned between the inlet of the fourth gas transmission channel and the fourth gas outlet, and the gas transmission valve is positioned between the inlet of the high-pressure channel and the connecting port.

9. The air supply device for the painting equipment as claimed in claim 8, wherein the low pressure passage includes a third pressure regulating valve, a third diversion passage and a fourth diversion passage, ends of the third diversion passage and the fourth diversion passage are respectively provided with a seventh connection port and an eighth connection port, one end of the third pressure regulating valve is connected with an inlet of the low pressure passage, and the other end of the third pressure regulating valve is connected with inlets of the third diversion passage and the fourth diversion passage through air delivery valves.

10. A powder supply center comprises a box body and an air supply device according to any one of claims 5 to 9, and is characterized in that the box body is further provided with a powder supply box, a powder pumping device and a multi-way valve body, the powder supply box is provided with a feed inlet and a discharge outlet, the multi-way valve body is connected with the feed inlet, the multi-way valve body is further connected with the powder pumping device and the air supply device, and a spray gun connecting port connected with the inside of the powder supply box is arranged outside the powder supply box.