Intermittent spraying control device

Abstract

The invention discloses an intermittent spraying control device. The device is characterized in that an outlet of an air filtering combined duplex piece is connected with an air inlet of a two-lever roller type pneumatic machine control valve, and an air outlet of the two-lever roller type pneumatic machine control valve is connected with control ports at two ends of a two-position five-way pneumatic valve; two air outlets of the two-position five-way pneumatic valve are connected with two air ports of the double-outlet-rod non-rotation air cylinder through connecting pipelines. The first ball valve and the second ball valve are double-acting air valves and are provided with opening ports and closing ports, the opening ports of the first ball valve and the second ball valve are connected into the same connecting pipeline in parallel, and the closing ports of the first ball valve and the second ball valve are connected into the other connecting pipeline in parallel; the two piston rods of the double-outlet-rod non-rotation air cylinder can touch the idler wheels of the two lever idler wheel type pneumatic machine control valves, and the opening and closing states of the lever idler wheel type pneumatic machine control valves are changed. The problem that water is accumulated on the ground due to long-time spraying can be avoided, and a more efficient dust removal mode is achieved in a wind-water linkage mode.

Description

Technical Field

[0001] The invention relates to the field of coal mine dust removal, and in particular to a control device for fine water gap spray dust removal. Background Art

[0002] A large amount of dust is generated during coal production, of which dust with a particle size of less than 5μm is called respirable dust. Respirable dust can directly enter the alveoli and deposit, causing pneumoconiosis, which is an important occupational hazard factor that damages the health of workers.

[0003] The existing coal mine dust removal technology solutions include wet rock drilling, ventilation dust removal, air flow purification, tunnel spraying, rock loading and water sprinkling, flushing of tunnel walls, etc. Among them, spray dust removal is a common method with obvious effects. At present, coal mine tunnel spray devices mostly use uninterrupted spraying, which has the defect of long-term spraying and causing water accumulation on the ground. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and propose an intermittent spray control device that can avoid the problem of water accumulation on the ground due to long-term spraying, while achieving a more efficient dust removal method through the linkage of wind and water.

[0005] To achieve the above objectives, the present invention proposes the following technical solutions: An intermittent spray control device comprises an air filter assembly two-piece, a two-position five-way pneumatic valve, a double-rod non-rotating cylinder, a first ball valve for controlling water supply, a second ball valve for controlling air supply and two lever roller type pneumatic motor-controlled valves.

[0006] The outlets of the air filter assembly two-piece are respectively connected to the air inlets of the two-position five-way pneumatic valve and two lever roller pneumatic motor-controlled valves, and the air outlets of the two lever roller pneumatic motor-controlled valves are respectively connected to the control ports at both ends of the two-position five-way pneumatic valve.

[0007] The double-rod non-rotating cylinder is a cylinder with two piston rods that do not rotate during operation. It is provided with two air ports. The two piston rods can extend from both ends of the cylinder and move in opposite directions. This is already known in the prior art.

[0008] The two air outlets of the two-position five-way pneumatic valve are connected with the two air outlets of the double-rod non-rotating cylinder through connecting pipes.

[0009] The first ball valve and the second ball valve are double-acting stainless steel pneumatic ball valves, and the opening and closing of the valve body are achieved by a pneumatic actuator. The pneumatic actuator is provided with two control ports, namely an open port and a closed port. Gas enters from the open port to open the first ball valve and the second ball valve, and gas is discharged from the closed port. Gas enters from the closed port to close the first ball valve and the second ball valve, and gas is discharged from the open port.

[0010] The first ball valve is connected to the water supply pipe of the spray head, and the second ball valve is connected to the air supply pipe of the spray head. The first ball valve and the second ball valve need to be opened or closed at the same time to realize the start and stop of spraying. When the first ball valve and the second ball valve are opened at the same time, spraying starts, and when the first ball valve and the second ball valve are closed at the same time, spraying stops. This part belongs to the existing content in the prior art.

[0011] The first ball valve and the second ball valve are connected in parallel to the connecting pipes of the two-position five-way pneumatic valve and the double-rod non-rotating cylinder respectively, the opening ports of the first ball valve and the second ball valve are connected in parallel to the same connecting pipe, and the closing ports of the first ball valve and the second ball valve are connected in parallel to another connecting pipe, so that the first ball valve and the second ball valve are opened or closed synchronously.

[0012] Two lever roller pneumatic motor-controlled valves are arranged on both sides of the double-rod non-rotating cylinder. The two piston rods of the double-rod non-rotating cylinder can touch the rollers of the two lever roller pneumatic motor-controlled valves, and apply external force to the rollers to change the switching state of the lever roller pneumatic motor-controlled valve, which can prompt the lever roller pneumatic motor-controlled valve to open, so that the pressure gas of the air filter combination two-piece enters the control ports at both ends of the two-position five-way pneumatic valve through the lever roller pneumatic motor-controlled valve, switches the valve stem position of the two-position five-way pneumatic valve, and changes the air outlet state of the two-position five-way pneumatic valve. When the piston rod is away from the two lever roller pneumatic motor-controlled valves, the lever roller pneumatic motor-controlled valve returns to the closed state.

[0013] Preferably, a one-way throttle valve is respectively arranged on the connecting pipe of the two-position five-way pneumatic valve and the double-rod non-rotating cylinder to control the flow rate of the pressurized gas flowing from the two-position five-way pneumatic valve to the double-rod non-rotating cylinder. The gas can also flow from the double-rod non-rotating cylinder to the two-position five-way pneumatic valve but the flow rate is not controlled. The spray time or intermittent time can be changed by adjusting the flow rate of the one-way throttle valve.

[0014] Preferably, the opening ports of the first ball valve and the second ball valve are connected to the same connecting pipe at the same parallel point, and the closing ports of the first ball valve and the second ball valve are connected to another connecting pipe at the same parallel point to better ensure the synchronization of gas and water supply.

[0015] Preferably, the one-way throttle valve is placed between the parallel access point of the first ball valve and the second ball valve and the air port of the double-rod non-rotating cylinder, controlling the flow rate of the pressurized gas flowing from the two-position five-way pneumatic valve to the double-rod non-rotating cylinder but not controlling the flow rate from the two-position five-way pneumatic valve to the first ball valve and the second ball valve, thereby ensuring the timeliness of starting and stopping the spray while ensuring the intermittent nature of the spray.

[0016] Preferably, an adjustment platform is provided underneath the lever roller type pneumatic motor-controlled valve, and a screw and a slider are provided on the adjustment platform, the screw and the slider are threadedly connected, and an adjustment wheel is provided on the screw, and the slider can be moved along the axis of the screw by rotating the adjusting wheel, a pointer is provided at the bottom of the slider, and a ruler is provided under the adjustment platform, the pointer corresponds to the ruler, and the position of the slider is confirmed by the ruler; the lever roller type pneumatic motor-controlled valve is fixed on the slider of the adjustment platform to form a machine-controlled valve device, and rotating the adjusting wheel can drive the lever roller type pneumatic motor-controlled valve to move synchronously, and the position of the adjustment platform can be adjusted to adjust the distance between the piston rod of the double-rod non-rotating cylinder and the lever roller type pneumatic motor-controlled valve, thereby changing the movement time of the piston rod and thus changing the spray time or intermittent time.

[0017] Preferably, it also includes two shuttle valves and two manual two-position three-way valves, the air inlets of the two manual two-position three-way valves are connected to the outlet of the air filter assembly two-piece, the two air inlets of the shuttle valve are respectively connected to the air outlet of the manual two-position three-way valve and the air outlet of the lever roller type pneumatic motor-controlled valve, the pressurized gas enters the shuttle valve through the manual two-position three-way valve or the lever roller type pneumatic motor-controlled valve, and both of them can open the shuttle valve, the air outlets of the two shuttle valves are respectively connected to the control ports at both ends of the two-position five-way pneumatic valve, the arrangement of the shuttle valve and the manual two-position three-way valve can realize temporary stopping and temporary starting of the spraying to prevent people from getting their clothes wet, and can also spray in time when dust removal is needed, thereby improving the flexibility of the spraying device.

[0018] Specifically, the two air outlets of the two-position five-way pneumatic valve are the first air outlet and the second air outlet. The left air outlet is set as the first air outlet, and the right air outlet is set as the second air outlet. The first control port is on the same side as the first air outlet on the two-position five-way pneumatic valve, and the second control port is on the same side as the second air outlet.

[0019] Of the two air ports of the double-rod non-rotating cylinder, the one corresponding to the first air outlet is the first air port, the one corresponding to the second air outlet is the second air port, the piston rod on the same side as the first air port is the first piston rod, the piston rod on the same side as the second air port is the second piston rod, the lever-roller pneumatic motor-controlled valve corresponding to the first piston rod is the first lever-roller pneumatic motor-controlled valve, and the lever-roller pneumatic motor-controlled valve corresponding to the second piston rod is the second lever-roller pneumatic motor-controlled valve.

[0020] The connecting pipe between the first air outlet and the first air port is the first connecting pipe, and the connecting pipe between the second air outlet and the second air port is the second connecting pipe.

[0021] The opening ports of the first ball valve and the second ball valve are connected in parallel to the first connecting pipeline, and the closing ports of the first ball valve and the second ball valve are connected in parallel to the second connecting pipeline.

[0022] Assume that in the initial state, the valve stem of the two-position five-way pneumatic valve is on the right, the first air outlet of the two-position five-way pneumatic valve is in a connected state, and the second air outlet is closed, that is, the pressurized gas of the air filter assembly two-piece enters the two-position five-way pneumatic valve, and enters the double-rod non-rotating cylinder through the first air outlet, the first connecting pipe, and the first air port of the two-position five-way pneumatic valve, so that the second piston rod of the double-rod non-rotating cylinder moves to the right, and at the same time, the pressurized gas enters the opening ports of the first ball valve and the second ball valve, opens the first ball valve and the second ball valve, and starts spray dust removal.

[0023] During the rightward movement of the second piston rod, the gas on the right side of the double-rod non-rotating cylinder flows out from the second gas port, mixes with the gas flowing out of the closed ports of the first ball valve and the second ball valve, and is discharged through the exhaust port of the two-position five-way pneumatic valve.

[0024] The second piston rod moves to the right until it touches the second lever roller pneumatic motor-controlled valve, opening the second lever roller pneumatic motor-controlled valve, allowing the pressurized air to enter the second control port of the two-position five-way pneumatic valve through the second lever roller pneumatic motor-controlled valve, changing the valve stem position of the two-position five-way pneumatic valve, pushing the valve stem of the two-position five-way pneumatic valve to the left, closing the first air outlet of the two-position five-way pneumatic valve and connecting the second air outlet, and the pressurized gas enters the right side of the double-rod non-rotating cylinder through the second air outlet, the second connecting pipe, and the second air port, pushing the first piston rod to move left, and at the same time, the pressurized gas enters the closing ports of the first ball valve and the second ball valve, closing the first ball valve and the second ball valve, and stopping the spraying.

[0025] During the leftward movement of the first piston rod, the gas on the left side of the double-rod non-rotating cylinder flows out from the first gas port, mixes with the gas flowing out of the opening ports of the first ball valve and the second ball valve, and is discharged through the exhaust port of the two-position five-way pneumatic valve.

[0026] The first piston rod moves to the left until it touches the first lever roller pneumatic motor-controlled valve, opens the first lever roller pneumatic motor-controlled valve, and the pressure gas enters the first control port of the two-position five-way pneumatic valve through the first lever roller pneumatic motor-controlled valve, changes the valve stem position of the two-position five-way pneumatic valve, pushes the valve stem of the two-position five-way pneumatic valve to the right, closes the second air outlet of the two-position five-way pneumatic valve, connects the first air outlet, and the pressure gas enters the double-rod non-rotating cylinder through the first air outlet and the first air port, so that the second piston rod of the double-rod non-rotating cylinder moves to the right. At the same time, the pressure gas enters the opening port of the first ball valve and the second ball valve, so that the first ball valve and the second ball valve are opened, and the spray is restored. During the rightward movement of the second piston rod, the gas on the left side of the double-rod non-rotating cylinder flows out from the second air port, mixes with the gas flowing out of the closing port of the first ball valve and the second ball valve, and is discharged through the exhaust port of the two-position five-way pneumatic valve. Thus, intermittent spraying is performed reciprocatingly.

[0027] The beneficial effects of the present invention are: The present invention uses an air filter combination two-piece, a two-position five-way pneumatic valve, a double-rod non-rotating cylinder, a first ball valve for controlling water supply, a second ball valve for controlling air supply and two lever roller pneumatic control valves to form an intermittent spray execution component, thereby avoiding the problem of water accumulation on the ground due to long-term spraying, and achieving a more efficient dust removal method in a Feng Shui linkage manner.

[0028] The present invention provides an adjustment platform under the lever roller type pneumatic motor-controlled valve, and the lever roller type pneumatic motor-controlled valve adjustment platform constitutes a motor-controlled valve device. Rotating the adjustment wheel of the adjustment platform can drive the lever roller type pneumatic motor-controlled valve to move synchronously, and the spray time or intermittent time can be changed by adjusting the position of the adjustment platform.

[0029] The present invention can realize temporary stopping and temporary starting of spraying by setting the shuttle valve and the manual two-position three-way valve, thereby preventing people from getting their clothes wet, and can also spray in time when dust removal is needed, thereby improving the flexibility of the spraying device.

[0030] By adopting the above scheme, the present invention can avoid the problem of water accumulation caused by long-term spraying on the ground, and at the same time achieve a more efficient dust removal method in a wind and water linkage manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 these drawings without paying creative labor.

[0032] Figure 1 It is a flowchart of the first embodiment.

[0033] Figure 2 It is a first flow chart of the second embodiment.

[0034] Figure 3 4 is a second flow chart of the second embodiment.

[0035] In the figure, 1-first shuttle valve, 1-1 second shuttle valve, 2-first manual two-position three-way valve, 2-1-second manual two-position three-way valve, 3-two-position five-way pneumatic valve, 31-first air outlet, 32-second air outlet, 33-first control port, 34-second control port, 4-air filter combination two-piece, 5-first ball valve, 5-1-second ball valve, 6-first adjustment table, 6-1-second adjustment table, 7-first lever roller pneumatic motor-controlled valve, 7-1-second lever roller pneumatic motor-controlled valve, 8-first one-way throttle valve, 8-1-second one-way throttle valve, 9-double-rod non-rotating cylinder, 91-first piston rod, 92-second piston rod, 93-first air port, 94-second air port. Implementation

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] First embodiment: like Figure 1 As shown, it includes an air filter assembly two-piece 4, a two-position five-way pneumatic valve 3, a double-rod non-rotating cylinder 9, a first ball valve 5 for controlling water supply, a second ball valve 5-1 for controlling air supply, and two lever roller type pneumatic motor-controlled valves.

[0041] The outlets of the air filter assembly two-piece 4 are respectively connected to the air inlets of the two-position five-way pneumatic valve 3 and two lever roller pneumatic motor-controlled valves, and the air outlets of the two lever roller pneumatic motor-controlled valves are respectively connected to the control ports at both ends of the two-position five-way pneumatic valve 3.

[0042] The double-rod non-rotating cylinder 9 is a cylinder with two piston rods that do not rotate during operation. It is provided with two air ports. The two piston rods can extend from both ends of the cylinder and move in opposite directions. This is already known in the prior art.

[0043] The two air outlets of the two-position five-way pneumatic valve 3 are connected to the two air outlets of the double-rod non-rotating cylinder 9 through connecting pipes.

[0044] The first ball valve 5 and the second ball valve 5-1 are double-acting stainless steel pneumatic ball valves, and the opening and closing of the valve body are realized by a pneumatic actuator. The pneumatic actuator is provided with two control ports, namely an open port and a closed port. Gas enters from the open port to open the first ball valve 5 and the second ball valve 5-1, and gas is discharged from the closed port. Gas enters from the closed port to close the first ball valve 5 and the second ball valve 5-1, and gas is discharged from the open port.

[0045] The first ball valve 5 is connected to the water supply pipe of the spray head, and the second ball valve 5-1 is connected to the air supply pipe of the spray head. The first ball valve 5 and the second ball valve 5-1 need to be opened or closed at the same time to realize the start and stop of spraying. When the first ball valve 5 and the second ball valve 5-1 are opened at the same time, spraying starts, and when the first ball valve 5 and the second ball valve 5-1 are closed at the same time, spraying stops. This part belongs to the existing content in the prior art.

[0046] The first ball valve 5 and the second ball valve 5-1 are connected in parallel to the connecting pipes between the two-position five-way pneumatic valve 3 and the double-rod non-rotating cylinder 9 respectively. The opening ports of the first ball valve 5 and the second ball valve 5-1 are connected in parallel to the same connecting pipe, and the closing ports of the first ball valve 5 and the second ball valve 5-1 are connected in parallel to another connecting pipe, so that the first ball valve 5 and the second ball valve 5-1 are opened or closed synchronously.

[0047] Two lever roller pneumatic motor-controlled valves are arranged on both sides of the double-rod non-rotating cylinder 9. The two piston rods of the double-rod non-rotating cylinder 9 can touch the rollers of the two lever roller pneumatic motor-controlled valves, and apply external force to the rollers to change the switching state of the lever roller pneumatic motor-controlled valves, which can prompt the lever roller pneumatic motor-controlled valves to open, so that the pressurized gas of the air filter combination two-piece 4 enters the control ports at both ends of the two-position five-way pneumatic valve 3 through the lever roller pneumatic motor-controlled valve, switches the valve stem position of the two-position five-way pneumatic valve 3, and changes the air outlet state of the two-position five-way pneumatic valve 3. When the piston rod is away from the two lever roller pneumatic motor-controlled valves, the lever roller pneumatic motor-controlled valves return to the closed state.

[0048] Specifically, the two air outlets of the two-position five-way pneumatic valve 3 are the first air outlet 31 and the second air outlet 32. The left air outlet is set as the first air outlet 31, and the right air outlet is set as the second air outlet 32. The first control port 33 is on the same side as the first air outlet 31 of the two-position five-way pneumatic valve 3, and the second control port 34 is on the same side as the second air outlet 32.

[0049] Of the two air ports of the double-rod non-rotating cylinder 9, the first air port 93 corresponds to the first air port 31, and the second air port 94 corresponds to the second air port 32. The piston rod on the same side as the first air port 93 is the first piston rod 91, and the piston rod on the same side as the second air port 94 is the second piston rod 92. The lever-roller pneumatic motor-controlled valve corresponding to the first piston rod 91 is the first lever-roller pneumatic motor-controlled valve 7, and the lever-roller pneumatic motor-controlled valve corresponding to the second piston rod 92 is the second lever-roller pneumatic motor-controlled valve 7-1.

[0050] The connecting pipe between the first air outlet 31 and the first air port 93 is a first connecting pipe, and the connecting pipe between the second air outlet 32 ​​and the second air port 94 is a second connecting pipe.

[0051] The openings of the first ball valve 5 and the second ball valve 5 - 1 are connected in parallel to the first connecting pipeline, and the closing ports of the first ball valve 5 and the second ball valve 5 - 1 are connected in parallel to the second connecting pipeline.

[0052] Assume that in the initial state, the valve stem of the two-position five-way pneumatic valve 3 is on the right, the first air outlet 31 of the two-position five-way pneumatic valve 3 is in a connected state, and the second air outlet 32 ​​is closed, that is, the pressurized gas of the air filter assembly two-piece 4 enters the two-position five-way pneumatic valve 3, and enters the double-rod non-rotating cylinder 9 through the first air outlet 31, the first connecting pipe, and the first air port 93 of the two-position five-way pneumatic valve 3, so that the second piston rod 92 of the double-rod non-rotating cylinder 9 moves to the right, and at the same time, the pressurized gas enters the opening of the first ball valve 5 and the second ball valve 5-1, opens the first ball valve 5 and the second ball valve 5-1, and starts spray dust removal.

[0053] During the rightward movement of the second piston rod 92 , the gas on the right side of the double-rod non-rotating cylinder flows out from the second gas port 94 , mixes with the gas flowing out of the closed ports of the first ball valve 5 and the second ball valve 5 - 1 , and is discharged through the exhaust port of the two-position five-way pneumatic valve 3 .

[0054] The second piston rod 92 moves to the right until it touches the second lever roller pneumatic motor controlled valve 7-1, opening the second lever roller pneumatic motor controlled valve 7-1, allowing the pressurized air to enter the second control port 34 of the two-position five-way pneumatic valve 3 through the second lever roller pneumatic motor controlled valve 7-1, changing the valve stem position of the two-position five-way pneumatic valve 3, pushing the valve stem of the two-position five-way pneumatic valve 3 to move left, so that the first air outlet 31 of the two-position five-way pneumatic valve 3 is closed and the second air outlet 32 ​​is connected. Figure 1 As shown, the pressurized gas enters the right side of the double-rod non-rotating cylinder 9 through the second air outlet 32, the second connecting pipe, and the second air port 94, pushing the first piston rod 91 to move left. At the same time, the pressurized gas enters the closing ports of the first ball valve 5 and the second ball valve 5-1, closing the first ball valve 5 and the second ball valve 5-1 and stopping the spraying.

[0055] During the leftward movement of the first piston rod 91, the gas on the left side of the double-rod non-rotating cylinder 9 flows out from the first air port 93, mixes with the gas flowing out of the openings of the first ball valve 5 and the second ball valve 5-1, and is discharged through the exhaust port of the two-position five-way pneumatic valve 3.

[0056] The first piston rod 91 moves to the left until it touches the first lever roller pneumatic motor controlled valve 7, opening the first lever roller pneumatic motor controlled valve 7, and the pressurized gas enters the first control port 33 of the two-position five-way pneumatic valve 3 through the first lever roller pneumatic motor controlled valve 7, changing the valve stem position of the two-position five-way pneumatic valve 3, pushing the valve stem of the two-position five-way pneumatic valve 3 to move right, so that the second air outlet 32 ​​of the two-position five-way pneumatic valve 3 is closed, and the first air outlet 31 is connected, and the pressurized gas passes through the first air outlet 31 and the first air port 93. Entering the double-rod non-rotating cylinder 9, the second piston rod 92 of the double-rod non-rotating cylinder 9 moves to the right, and at the same time, the pressure gas enters the opening of the first ball valve 5 and the second ball valve 5-1, so that the first ball valve 5 and the second ball valve 5-1 are opened, and the spray is restored. During the rightward movement of the second piston rod 92, the gas on the left side of the double-rod non-rotating cylinder 9 flows out from the second gas port 94, mixes with the gas flowing out of the closed ports of the first ball valve 5 and the second ball valve 5-1, and is discharged through the exhaust port of the two-position five-way pneumatic valve 3. Thus, intermittent spraying is performed reciprocatingly.

[0057] Second embodiment: like Figure 2 and 3 As shown, it includes an air filter assembly two-piece 4, a two-position five-way pneumatic valve 3, a double-rod non-rotating cylinder 9, a first ball valve 5 for controlling water supply, a second ball valve 5-1 for controlling air supply, and two lever roller type pneumatic motor-controlled valves.

[0058] The outlets of the air filter assembly two-piece 4 are respectively connected to the air inlets of the two-position five-way pneumatic valve 3 and two lever roller pneumatic motor-controlled valves, and the air outlets of the two lever roller pneumatic motor-controlled valves are respectively connected to the control ports at both ends of the two-position five-way pneumatic valve 3.

[0059] The double-rod non-rotating cylinder 9 is a cylinder with two piston rods that do not rotate during operation. It is provided with two air ports. The two piston rods can extend from both ends of the cylinder and move in opposite directions. This is already known in the prior art.

[0060] The two air outlets of the two-position five-way pneumatic valve 3 are connected to the two air outlets of the double-rod non-rotating cylinder 9 through connecting pipes.

[0061] The first ball valve 5 and the second ball valve 5-1 are double-acting stainless steel pneumatic ball valves, and the opening and closing of the valve body are realized by a pneumatic actuator. The pneumatic actuator is provided with two control ports, namely an open port and a closed port. Gas enters from the open port to open the first ball valve 5 and the second ball valve 5-1, and gas is discharged from the closed port. Gas enters from the closed port to close the first ball valve 5 and the second ball valve 5-1, and gas is discharged from the open port.

[0062] The first ball valve 5 is connected to the water supply pipe of the spray head, and the second ball valve 5-1 is connected to the air supply pipe of the spray head. The first ball valve 5 and the second ball valve 5-1 need to be opened or closed at the same time to realize the start and stop of spraying. When the first ball valve 5 and the second ball valve 5-1 are opened at the same time, spraying starts, and when the first ball valve 5 and the second ball valve 5-1 are closed at the same time, spraying stops. This part belongs to the existing content in the prior art.

[0063] The first ball valve 5 and the second ball valve 5-1 are connected in parallel to the connecting pipes between the two-position five-way pneumatic valve 3 and the double-rod non-rotating cylinder 9 respectively. The opening ports of the first ball valve 5 and the second ball valve 5-1 are connected in parallel to the same connecting pipe, and the closing ports of the first ball valve 5 and the second ball valve 5-1 are connected in parallel to another connecting pipe, so that the first ball valve 5 and the second ball valve 5-1 are opened or closed synchronously.

[0064] Two lever roller pneumatic motor-controlled valves are arranged on both sides of the double-rod non-rotating cylinder 9. The two piston rods of the double-rod non-rotating cylinder 9 can touch the rollers of the two lever roller pneumatic motor-controlled valves, and apply external force to the rollers to change the switching state of the lever roller pneumatic motor-controlled valves, which can prompt the lever roller pneumatic motor-controlled valves to open, so that the pressurized gas of the air filter combination two-piece 4 enters the control ports at both ends of the two-position five-way pneumatic valve 3 through the lever roller pneumatic motor-controlled valve, switches the valve stem position of the two-position five-way pneumatic valve 3, and changes the air outlet state of the two-position five-way pneumatic valve 3. When the piston rod is away from the two lever roller pneumatic motor-controlled valves, the lever roller pneumatic motor-controlled valves return to the closed state.

[0065] One-way throttle valves are respectively arranged on the connecting pipes of the two-position five-way pneumatic valve 3 and the double-rod non-rotating cylinder 9 to control the flow rate of the pressurized gas flowing from the two-position five-way pneumatic valve to the double-rod non-rotating cylinder 9. The gas can also flow from the double-rod non-rotating cylinder 9 to the two-position five-way pneumatic valve 3 but the flow rate is not controlled. The spray time or intermittent time can be changed by adjusting the flow rate of the one-way throttle valve.

[0066] The openings of the first ball valve 5 and the second ball valve 5-1 are connected to the same connecting pipeline at the same parallel point, and the closing ports of the first ball valve 5 and the second ball valve 5-1 are connected to another connecting pipeline at the same parallel point, so as to better ensure the synchronization of gas and water supply.

[0067] The one-way throttle valve is placed between the parallel connection point of the first ball valve 5 and the second ball valve 5-1 and the air port of the double-rod non-rotating cylinder 9, controlling the flow rate of the pressurized gas flowing from the two-position five-way pneumatic valve 3 to the double-rod non-rotating cylinder 9 but not controlling the flow rate from the two-position five-way pneumatic valve 3 to the first ball valve 5 and the second ball valve 5-1, thereby ensuring the timeliness of starting and stopping the spray while ensuring the intermittent nature of the spray.

[0068] An adjusting platform is provided below the lever roller type pneumatic motor-controlled valve, and a screw and a slider are provided on the adjusting platform. The screw and the slider are threadedly connected, and an adjusting wheel is provided on the screw. The slider can be moved along the axis of the screw by rotating the adjusting wheel. A pointer is provided at the bottom of the slider, and a ruler is provided below the adjusting platform. The pointer corresponds to the ruler, and the position of the slider is confirmed by the ruler. The lever roller type pneumatic motor-controlled valve is fixed on the slider of the adjusting platform to form a machine-controlled valve device. Rotating the adjusting wheel can drive the lever roller type pneumatic motor-controlled valve to move synchronously. By adjusting the position of the adjusting platform, the distance between the piston rod of the double-rod non-rotating cylinder and the lever roller type pneumatic motor-controlled valve can be adjusted, thereby changing the movement time of the piston rod and thus changing the spray time or intermittent time.

[0069] It also includes two shuttle valves and two manual two-position three-way valves, the air inlets of the two manual two-position three-way valves are connected to the outlet of the air filter combination two-piece 4, the two air inlets of the shuttle valves are respectively connected to the air outlet of the manual two-position three-way valve and the air outlet of the lever roller type pneumatic control valve, and the air outlets of the two shuttle valves are respectively connected to the control ports at both ends of the two-position five-way pneumatic valve. Through the setting of the shuttle valves and the manual two-position three-way valves, the spray can be temporarily stopped and started to prevent people from getting their clothes wet, and spraying can be carried out in time when dust removal is needed, thereby improving the flexibility of the spray device.

[0070] Specifically, the two air outlets of the two-position five-way pneumatic valve 3 are the first air outlet 31 and the second air outlet 32. The left air outlet is set as the first air outlet 31, and the right air outlet is set as the second air outlet 32. The first control port 33 is on the same side as the first air outlet 31 of the two-position five-way pneumatic valve 3, and the second control port 34 is on the same side as the second air outlet 32.

[0071] Of the two air ports of the double-rod non-rotating cylinder 9, the first air port 93 corresponds to the first air port 31, and the second air port 94 corresponds to the second air port 32. The piston rod on the same side as the first air port 93 is the first piston rod 91, and the piston rod on the same side as the second air port 94 is the second piston rod 92. The lever-roller pneumatic motor-controlled valve corresponding to the first piston rod 91 is the first lever-roller pneumatic motor-controlled valve 7, and the lever-roller pneumatic motor-controlled valve corresponding to the second piston rod 92 is the second lever-roller pneumatic motor-controlled valve 7-1.

[0072] The adjustment platform corresponding to the first lever roller type pneumatically controlled valve 7 is the first adjustment platform 6 .

[0073] The adjustment platform corresponding to the second lever roller type pneumatic motor-controlled valve 7 - 1 is the second adjustment platform 6 - 1 .

[0074] The connecting pipe between the first air outlet 31 and the first air port 93 is a first connecting pipe, and the connecting pipe between the second air outlet 32 ​​and the second air port 94 is a second connecting pipe.

[0075] The openings of the first ball valve 5 and the second ball valve 5 - 1 are connected in parallel to the first connecting pipeline, and the closing ports of the first ball valve 5 and the second ball valve 5 - 1 are connected in parallel to the second connecting pipeline.

[0076] The one-way throttle valve arranged on the first connecting pipeline is the first one-way throttle valve 8, and the one-way throttle valve arranged on the second connecting pipeline is the second one-way throttle valve 8-1.

[0077] The shuttle valve connected to the air outlet of the first lever roller pneumatic motor-controlled valve 7 is the first shuttle valve 1, and the manual two-position three-way valve connected to the air outlet of the first shuttle valve 1 is the first manual two-position three-way valve 2; the shuttle valve connected to the air outlet of the second lever roller pneumatic motor-controlled valve 7-1 is the second shuttle valve 1-1, and the manual two-position three-way valve connected to the air outlet of the second shuttle valve 1-1 is the second manual two-position three-way valve 2-1.

[0078] Assume that in the initial state, the valve stem of the two-position five-way pneumatic valve 3 is on the right side, the first air outlet 31 of the two-position five-way pneumatic valve 3 is in a connected state, and the second air outlet 32 ​​is closed, that is, the pressurized gas of the air filter assembly two-piece 4 enters the two-position five-way pneumatic valve 3, and enters the double-rod non-rotating cylinder 9 through the first air outlet 31 of the two-position five-way pneumatic valve 3, the first one-way throttle valve 8 on the first connecting pipe, and the first air port 93, so that the second piston rod 92 of the double-rod non-rotating cylinder 9 moves to the right, and at the same time, the pressurized gas enters the opening of the first ball valve 5 and the second ball valve 5-1, opens the first ball valve 5 and the second ball valve 5-1, and starts spray dust removal. Figure 2 shown.

[0079] During the rightward movement of the second piston rod 92, the gas on the right side of the double-rod non-rotating cylinder 9 flows out from the second gas port 94, mixes with the gas flowing out of the closed ports of the first ball valve 5 and the second ball valve 5-1, and is discharged through the exhaust port of the second one-way throttle valve 8-1 and the two-position five-way pneumatic valve 3.

[0080] The second piston rod 92 moves to the right until it touches the second lever roller pneumatic motor-controlled valve 7-1, opening the second lever roller pneumatic motor-controlled valve 7-1, allowing the pressurized air to enter the second control port 34 of the two-position five-way pneumatic valve 3 through the second lever roller pneumatic motor-controlled valve 7-1 and the second shuttle valve 1-1, changing the valve stem position of the two-position five-way pneumatic valve 3, pushing the valve stem of the two-position five-way pneumatic valve 3 to move left, so that the first air outlet 31 of the two-position five-way pneumatic valve 3 is closed and the second air outlet 32 ​​is connected. Figure 3 As shown, the pressurized gas enters the right side of the double-rod non-rotating cylinder 9 through the second air outlet 32, the second one-way throttle valve 8-1 on the second connecting pipe, and the second air port 94, pushing the first piston rod 91 to move left. At the same time, the pressurized gas enters the closing ports of the first ball valve 5 and the second ball valve 5-1, causing the first ball valve 5 and the second ball valve 5-1 to close and stop spraying.

[0081] During the leftward movement of the first piston rod 91, the gas on the left side of the double-rod non-rotating cylinder 9 flows out from the first air port 93, mixes with the gas flowing out from the opening ports of the first ball valve 5 and the second ball valve 5-1, and is discharged through the exhaust ports of the first one-way throttle valve 8 and the two-position five-way pneumatic valve 3.

[0082] The first piston rod 91 continues to move leftward until it touches the first lever roller pneumatic motor-controlled valve 7, opening the first lever roller pneumatic motor-controlled valve 7, and the pressurized gas enters the first control port 33 of the two-position five-way pneumatic valve 3 through the first lever roller pneumatic motor-controlled valve 7 and the first shuttle valve 1, changing the valve stem position of the two-position five-way pneumatic valve 3, pushing the valve stem of the two-position five-way pneumatic valve 3 to move rightward, so that the second air outlet 32 ​​of the two-position five-way pneumatic valve 3 is closed, and the first air outlet 31 is connected. Figure 2 As shown, the pressurized gas enters the left side of the double-rod non-rotating cylinder 9 through the first gas outlet 31, the first one-way throttle valve 8 on the first connecting pipe, and the first gas port 93, so that the second piston rod 92 of the double-rod non-rotating cylinder 9 moves to the right, and at the same time, the pressurized gas enters the opening of the first ball valve 5 and the second ball valve 5-1, so that the first ball valve 5 and the second ball valve 5-1 are opened, and the spray is restored. During the rightward movement of the second piston rod 92, the gas on the right side of the double-rod non-rotating cylinder 9 flows out from the second gas port 94, and mixes with the gas flowing out of the closed ports of the first ball valve 5 and the second ball valve 5-1, and is discharged through the second one-way throttle valve 8-1 and the exhaust port of the two-position five-way pneumatic valve 3. Thus, intermittent spraying is performed reciprocatingly.

[0083] During the intermittent spraying process, the second manual two-position three-way valve 2-1 is pressed to open the second manual two-position three-way valve 2-1, and at the same time, the second shuttle valve 1-1 is opened, so that the pressurized gas enters the second control port 34 of the two-position five-way pneumatic valve 3 through the second manual two-position three-way valve 2-1 and the second shuttle valve 1-1, and the valve stem position of the two-position five-way pneumatic valve 3 is changed or maintained, so that the valve stem of the two-position five-way pneumatic valve 3 is on the left, that is, the second air outlet 32 ​​is connected, and the first air outlet 31 is closed, and the pressurized gas enters the right side of the double-rod non-rotating cylinder 9 through the second air outlet 32, the second one-way throttle valve 8-1 on the second connecting pipe, and the second air port 94, pushing the first piston rod 91 to move left, and at the same time, the pressurized gas enters the closing ports of the first ball valve 5 and the second ball valve 5-1, so that the first ball valve 5 and the second ball valve 5-1 are closed, and the spraying is temporarily stopped, and then the intermittent spraying is automatically resumed.

[0084] During the intermittent spraying process, the first manual two-position three-way valve 2 is pressed to open the first manual two-position three-way valve 2, and at the same time, the first shuttle valve 1 is opened, so that the pressurized gas enters the first control port 33 of the two-position five-way pneumatic valve 3 through the first manual two-position three-way valve 2 and the first shuttle valve 1, and the valve stem position of the two-position five-way pneumatic valve 3 is changed or maintained, so that the valve stem of the two-position five-way pneumatic valve 3 is on the right side, that is, the first air outlet 31 is connected, and the second air outlet 32 ​​is closed, and the pressurized gas enters the left side of the double-rod non-rotating cylinder 9 through the first air outlet 31, the first one-way throttle valve 8 on the first connecting pipe, and the first air port 93, pushing the first piston rod 91 to move right, and at the same time, the pressurized gas enters the opening ports of the first ball valve 5 and the second ball valve 5-1, so that the first ball valve 5 and the second ball valve 5-1 are opened, and the spraying is resumed, and then the intermittent spraying is automatically resumed.

[0085] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intermittent spray control device, comprising an air filter assembly two-piece, a two-position five-way pneumatic valve, a first ball valve for controlling water supply and a second ball valve for controlling air supply, wherein the outlet of the air filter assembly two-piece is connected to the air inlet of the two-position five-way pneumatic valve, and characterized in that: It also includes a double-rod non-rotating cylinder and two lever-roller pneumatic motor-controlled valves, the outlet of the air filter assembly two-piece is connected to the air inlet of the two lever-roller pneumatic motor-controlled valves, and the air outlets of the two lever-roller pneumatic motor-controlled valves are respectively connected to the control ports at both ends of the two-position five-way pneumatic valve; the two air outlets of the two-position five-way pneumatic valve are connected to the two air ports of the double-rod non-rotating cylinder through connecting pipes; the first ball valve and the second ball valve are double-acting stainless steel pneumatic ball valves, which are provided with an opening port and a closing port, the opening ports of the first ball valve and the second ball valve are connected in parallel to the same connecting pipe, and the closing ports of the first ball valve and the second ball valve are connected in parallel to another connecting pipe; the two lever-roller pneumatic motor-controlled valves are arranged on both sides of the double-rod non-rotating cylinder, and the two piston rods of the double-rod non-rotating cylinder can touch the rollers of the two lever-roller pneumatic motor-controlled valves to change the switching state of the lever-roller pneumatic motor-controlled valve to switch the valve stem position of the two-position five-way pneumatic valve.

2. An intermittent spray control device according to claim 1, characterized in that: One-way throttle valves are respectively arranged on the connecting pipelines of the two-position five-way pneumatic valve and the double-rod non-rotating cylinder to control the flow of the pressure gas flowing from the two-position five-way pneumatic valve to the double-rod non-rotating cylinder.

3. An intermittent spray control device according to claim 1, characterized in that: The openings of the first ball valve and the second ball valve are connected to the same connecting pipeline at the same parallel point, and the closing ports of the first ball valve and the second ball valve are connected to another connecting pipeline at the same parallel point.

4. An intermittent spray control device according to claim 1, characterized in that: An adjustment platform is provided below the lever roller type pneumatic machine-controlled valve, a screw and a slider are provided on the adjustment platform, the screw and the slider are threadedly connected, an adjustment wheel is provided on the screw, and the slider can be moved along the axis of the screw by rotating the adjustment wheel, a pointer is provided at the bottom of the slider, a scale is provided below the adjustment platform, and the pointer corresponds to the scale; the lever roller type pneumatic machine-controlled valve is fixed on the slider of the adjustment platform to form a machine-controlled valve device.

5. The intermittent spray control device according to claim 1, characterized in that: It also includes two shuttle valves and two manual two-position three-way valves. The air inlets of the two manual two-position three-way valves are connected to the outlet of the air filter assembly two-piece. The two air inlets of the shuttle valves are respectively connected to the air outlet of the manual two-position three-way valve and the air outlet of the lever roller type pneumatic control valve. The air outlets of the two shuttle valves are respectively connected to the control ports at both ends of the two-position five-way pneumatic valve.

6. An intermittent spray control device according to claim 2, characterized in that: The one-way throttle valve is placed between the parallel connection point of the first ball valve and the second ball valve and the air port of the double-rod non-rotating cylinder.

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