Pneumatic automatic pulse valve

Abstract

The pneumatic automatic pulse valve comprises a front end cover and a rear end cover, the front end cover and the rear end cover are connected with each other to form a pulse valve body, a piston cylinder body is arranged in the rear end cover, and a valve element sliding sleeve is arranged on the side, close to the front end cover, of the piston cylinder body; a valve element is arranged in the valve element sliding sleeve in a sliding mode, a piston is arranged in the piston cylinder body in a sliding mode, the bottom end of the valve element makes contact with the piston, a spring is arranged between the piston and the piston cylinder body, and a sealing cavity is formed between the side, away from the valve element, of the piston and the piston cylinder body. The pneumatic automatic pulse valve can be installed on a blower gun, a nozzle and other structures needing blowing operation, pulse airflow can be generated through ventilation of the pulse valve, the pulse valve does not need to be electrically connected with a control system, occupied control signals are reduced, and the pulse airflow can save gas, reduce energy consumption, save energy, reduce emission and achieve better dust removal and cleaning effects.

Description

Technical Field

[0001] The invention relates to the technical field of pulse valves, in particular to a pneumatic automatic pulse valve. Background Art

[0002] A pulse valve is a diaphragm valve that is controlled by a pilot valve such as an electromagnetic or pneumatic valve and can instantly open and close a high-pressure gas source to generate pulses. The pulse valve relies on the flow of air through the air resistance and the delay effect of the air capacity to convert the input long signal into a pulse signal. When the pulse valve is energized, the valve core is lifted upward by the electromagnetic force, the pressure relief hole opens, and the gas is ejected.

[0003] The existing pulse valve needs to be connected to the control mechanism of the equipment, and the opening and closing of the valve is driven by the electromagnetic mechanism, which occupies the control signal and cannot realize the automatic control of the pulse valve. Summary of the Invention

[0004] The purpose of the present invention is to provide a pneumatic automatic pulse valve to solve the problems raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pneumatic automatic pulse valve, comprising a front end cover and a rear end cover, the front end cover and the rear end cover being connected to each other and forming a pulse valve body, a piston cylinder body being provided inside the rear end cover, a valve core sliding sleeve being provided on the side of the piston cylinder body close to the front end cover, a valve core being slidably provided inside the valve core sliding sleeve, a piston being slidably provided inside the piston cylinder body, a bottom end of the valve core being in contact with the piston, a spring being provided between the piston and the piston cylinder body, and a sealed chamber being formed between the side of the piston away from the valve core and the piston cylinder body;

[0007] A first air manifold is provided inside the sealed cavity, a second air pipe manifold is provided inside the rear end cover, the second air pipe manifold is communicated with the first air manifold, a fixed bracket is provided inside the front end cover, a sealing rubber gasket is provided between the fixed bracket and the front end cover, the front end inclined surface of the valve core is fitted with the sealing rubber gasket, the gas enters from the front end cover and opens the valve by pushing the valve core to move, the gas enters the sealed cavity along the air manifold and closes the valve by pushing the piston to move in the opposite direction.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional solution: a support ring is provided on a side of the rear end cover close to the front end cover, and the support ring is fixedly connected to the piston cylinder.

[0010] In an optional solution: a first sealing ring is installed between the valve core and the valve core sliding sleeve, and a second sealing ring is provided between the support ring and the front end cover.

[0011] In an optional solution: a third sealing ring and a fourth sealing ring are provided between the piston cylinder body and the rear end cover, and a fifth sealing ring is provided between the valve core sliding sleeve and the piston cylinder body.

[0012] In an optional solution, a sixth sealing ring is provided between the piston and the piston cylinder.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The pneumatic automatic pulse valve can be installed on structures such as air guns and nozzles that require blowing operations. The pulse valve can generate pulse airflow when ventilated. There is no need to electrically connect to the control system, reducing the occupation of control signals. The gas enters from the front cover and pushes the valve core, and the valve opens. At the same time, the gas will pass through the air manifold of the rear cover to reach the piston cavity, pushing the piston to extend. The piston extends and pushes the valve core to extend. After the valve core extends, the valve is closed. The valve core opens and closes repeatedly and generates pulse airflow. The pulse airflow can save gas, reduce energy consumption, save energy and reduce emissions. The pulse airflow can generate pulse shock waves, and the dust removal and cleaning effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a pneumatic automatic pulse valve.

[0016] Figure 2 It is a cross-sectional view of a pneumatic automatic pulse valve.

[0017] Figure 3 This is a structural diagram of the connection between the pneumatic automatic pulse valve and the air gun.

[0018] Figure 4 This is a structural diagram of the connection between the pneumatic automatic pulse valve and the nozzle.

[0019] Notes on figure numbers: 1-front end cover, 2-rear end cover, 3-sealing gasket, 4-fixing bracket, 5-valve core, 6-valve core sleeve, 7-first sealing ring, 8-second sealing ring, 9-support ring, 10-piston, 11-fourth sealing ring, 12-fifth sealing ring, 13-sixth sealing ring, 14-piston, 15-piston cylinder, 16-spring, 17-first air manifold, 18-second air pipe manifold, 19-sealing chamber. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. In the drawings or descriptions, similar or identical parts are denoted by the same reference numerals, and in actual applications, the shape, thickness, or height of each component may be enlarged or reduced. The various embodiments listed in the present invention are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0021] In one embodiment, Figure 1-4 As shown, a pneumatic automatic pulse valve comprises a front end cover 1 and a rear end cover 2, wherein the front end cover 1 is fixedly connected to the rear end cover 2 and constitutes a pulse valve body, a piston cylinder 15 is provided inside the rear end cover 2, a valve core sliding sleeve 6 is provided on the side of the piston cylinder 15 close to the front end cover 1, a valve core 5 is slidably provided inside the valve core sliding sleeve 6, a piston 14 is slidably provided inside the piston cylinder 15, the bottom end of the valve core 5 is in contact with the piston 14, a spring 16 is provided between the piston 14 and the piston cylinder 15, and a sealing chamber 19 is formed between the side of the piston 10 away from the valve core 5 and the piston cylinder 15;

[0022] A first air manifold 17 is provided inside the sealing cavity 19, a second air pipe manifold 18 is provided inside the rear end cover 2, the second air pipe manifold 18 is communicated with the first air manifold 17, a fixing bracket 4 is provided inside the front end cover 1, a sealing rubber gasket 3 is provided between the fixing bracket 4 and the front end cover 1, that is, the sealing rubber gasket 3 is installed inside the front end cover 1 through the fixing bracket 4, and the front end inclined surface of the valve core 5 is in contact with the sealing rubber gasket 3 to form an open and closed channel for gas flow.

[0023] The pneumatic automatic pulse valve includes a front cover 1, a rear cover 2, a valve core 5, a valve core sleeve 6, a piston 14 and a piston cylinder 15. The pulse valve is connected to an air gun or a nozzle. The gas enters from the front cover 1 and pushes the valve core 3. The valve opens and the gas flows out from the rear cover 2. After the gas flows through the rear cover 2, the gas will also pass through the air manifold of the rear cover 2 to reach the cavity of the piston 14, pushing the piston 14 to extend. The piston 14 extends and pushes the valve core 5 to extend. After the valve core 5 extends, the valve is closed. After the valve is closed, no gas passes through the rear cover 2. After the gas is cut off, the valve core 5 will be reopened, and the pulse airflow is repeatedly generated. As an embodiment, the left, right, up and down positions of the various components given in the accompanying drawings are only an arrangement method. The specific position is set according to specific needs.

[0024] In one embodiment, Figure 1-2 As shown, a support ring 9 is provided on one side of the rear end cover 2 close to the front end cover 1 . The support ring 9 is fixedly connected to the piston cylinder 15 , and the piston cylinder 15 is installed inside the rear end cover 2 through the support ring 9 .

[0025] In one embodiment, Figure 1-2 As shown, a first sealing ring 7 is installed between the valve core 5 and the valve core sliding sleeve 6, and a second sealing ring 8 is provided between the support ring 9 and the front end cover 1.

[0026] In one embodiment, Figure 1-2 As shown, a third sealing ring 10 and a fourth sealing ring 11 are provided between the piston cylinder body 15 and the rear end cover 2 , and a fifth sealing ring 12 is provided between the valve core sliding sleeve 6 and the piston cylinder body 15 .

[0027] In one embodiment, Figure 1-2 As shown, a sixth sealing ring 13 is provided between the piston 14 and the piston cylinder 15 .

[0028] The above embodiment of the present invention provides a pneumatic automatic pulse valve, in which the front end cover 1 is fixedly connected to the rear end cover 2, a first sealing ring 7 is installed on the valve core 5, the valve core 5 is installed inside the valve core sleeve 6, and the valve core 5 can slide back and forth in the valve core sleeve 6, a spring 16 is installed at the bottom of the piston 14, the outer end of the spring 16 is fixed inside the piston cylinder 15, and then the piston 14 is installed in the piston cylinder 15; the outer ring of the piston cylinder 15 is fixed to the rear end cover 2 after the sealing ring is installed, and the air manifold in the piston cylinder 15 is communicated with the air manifold of the rear end cover 2 through the sealing chamber 19, so that the installation of the pulse valve is completed. The pulse valve can be installed on structures such as air guns and nozzles that require blowing operations, and can generate pulse airflow. The pulse airflow can save gas, reduce energy consumption, save energy and reduce emissions. At the same time, the pulse airflow can generate pulse shock waves, and the dust removal and cleaning effect is better.

[0029] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A pneumatic automatic pulse valve, comprising a front cover and a rear cover, characterized in that: The front end cover and the rear end cover are connected to each other and constitute the pulse valve body. A piston cylinder is provided inside the rear end cover. A valve core sliding sleeve is provided on the side of the piston cylinder close to the front end cover. A valve core is slidingly provided inside the valve core sliding sleeve. A piston is slidingly provided inside the piston cylinder. The bottom end of the valve core is in contact with the piston. A spring is provided between the piston and the piston cylinder. A sealing chamber is formed between the side of the piston away from the valve core and the piston cylinder. A first air manifold is provided inside the sealed cavity, a second air pipe manifold is provided inside the rear end cover, the second air pipe manifold is communicated with the first air manifold, a fixed bracket is provided inside the front end cover, a sealing rubber gasket is provided between the fixed bracket and the front end cover, the front end inclined surface of the valve core is fitted with the sealing rubber gasket, the gas enters from the front end cover and opens the valve by pushing the valve core to move, the gas enters the sealed cavity along the air manifold and closes the valve by pushing the piston to move in the opposite direction.

2. The pneumatic automatic pulse valve according to claim 1, characterized in that: A support ring is provided on one side of the rear end cover close to the front end cover, and the support ring is fixedly connected to the piston cylinder.

3. The pneumatic automatic pulse valve according to claim 2, characterized in that: A first sealing ring is installed between the valve core and the valve core sliding sleeve, and a second sealing ring is provided between the support ring and the front end cover.

4. The pneumatic automatic pulse valve according to claim 1, characterized in that: A third sealing ring and a fourth sealing ring are provided between the piston cylinder body and the rear end cover, and a fifth sealing ring is provided between the valve core sliding sleeve and the piston cylinder body.

5. The pneumatic automatic pulse valve according to claim 1, characterized in that: A sixth sealing ring is provided between the piston and the piston cylinder.

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