A fast pulse pneumatic switch control valve device

Abstract

The present invention discloses a fast pulse air pressure switch control valve device, comprising a valve body, wherein an air intake cavity and an air exhaust cavity are respectively arranged on the top and bottom of the valve body, a connecting cavity is arranged on the side of the valve body, the air intake cavity and the air exhaust cavity are connected through the connecting cavity, a rubber bowl and a pushing block are arranged in the connecting cavity, a connecting hole is arranged at the bottom of the rubber bowl, the pushing block is provided with an air exhaust hole and a connecting column, the connecting column passes through the connecting hole, a first spring is arranged between the rubber bowl and the pushing block, the present invention forms a valve core by cooperating with the rubber bowl and the pushing block, can quickly ventilate and automatically restore air-locking, the exhaust is stable, and the operation is simple.

Description

Technical Field

[0001] The invention relates to the field of air pressure control, and in particular to a fast pulse air pressure switch control valve device. Background Art

[0002] When a pipeline is blocked, a pneumatic dredge is usually used to dredge it. The pneumatic switches used in current pneumatic dredges have the following problems: 1) The air pressure cannot be discharged quickly, the operating pressure is too high, unstable, difficult to control, and the exhaust volume and pressure are low; 2) Air can only be injected when it is closed, which is easy to leak air and cause low pressure; 3) It cannot be discharged multiple times in a controlled manner. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a fast pulse air pressure switch control valve device which is easy to operate, can ventilate quickly and can automatically restore closing.

[0004] In order to solve the above technical problems, the technical solution of the present invention is:

[0005] A fast pulse air pressure switch control valve device, characterized in that it includes a valve body, the top and bottom of the valve body are respectively provided with an air intake chamber and an exhaust chamber, the side of the valve body is provided with a connecting chamber, the air intake chamber and the exhaust chamber are connected through the connecting chamber, a rubber bowl and a pushing block are provided in the connecting chamber, a connecting hole is provided at the bottom of the rubber bowl, the pushing block is provided with an exhaust hole and a connecting column, the connecting column passes through the connecting hole, and a first spring is provided between the rubber bowl and the pushing block.

[0006] Furthermore, the connecting cavity includes a first connecting cavity, a second connecting cavity and a third connecting cavity which are connected in sequence, the connecting column can move in the first connecting cavity, the bottom of the rubber bowl is arranged in the second connecting cavity, the pushing block is arranged in the third connecting cavity, the air intake cavity is connected with the second connecting cavity, and the exhaust cavity is connected with the first connecting cavity.

[0007] Furthermore, the diameter of the connecting hole gradually increases in a direction approaching the valve body.

[0008] Furthermore, the inner bottom of the rubber bowl is provided with a groove, the first spring is arranged in the groove, and the connecting column is arranged in the inner ring of the first spring.

[0009] Furthermore, it also includes a switch component connected to the connecting cavity, a push rod is provided in the switch component, the push rod can push the pushing block, a first button is connected to the end of the push rod, and a second spring is provided between the first button and the switch component.

[0010] Furthermore, the switch element includes a first connecting portion and a main body which are connected to each other, the first connecting portion is screwed to the communicating cavity, the main body is provided with a mounting hole, and the push rod passes through the mounting hole.

[0011] Furthermore, the push rod includes a connecting head, a rod body and a pushing head connected in sequence, the first button is screwed to the connecting head, the rod body is arranged in the mounting hole, the end of the rod body is provided with an inclined section whose diameter gradually increases along the pushing direction, the end diameter of the inclined section is suitable for the aperture of the mounting hole, and the side of the main body is provided with an air outlet hole connected to the mounting hole.

[0012] Furthermore, a first sealing ring is provided between the inclined section and the pushing head, and a second sealing ring is provided between the first connecting portion and the pushing block.

[0013] Furthermore, a positioning washer is provided at one end of the main body away from the valve body, the rod body passes through the positioning washer, and a third sealing ring cooperating with the rod body is provided on one side of the positioning washer.

[0014] Furthermore, the switch element also includes a second connecting portion connected to the other end of the main body, the second connecting portion is screwed with a shell, a second button is arranged in the shell, the first button is arranged in the second button, and a third spring is arranged between the second button and the main body.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the rubber bowl is arranged in the connecting cavity to hinder the connection between the air inlet cavity and the air exhaust cavity, so that the valve body is in a closed and non-ventilated state; the pushing block is pressed, and the pushing block squeezes the rubber bowl to discharge the air in the rubber bowl from the exhaust hole, and the air pressure in the rubber bowl is reduced to generate suction, so that the rubber bowl and the pushing block are connected as one. After the pressure is released, the pushing block moves back under the elastic force of the first spring. At this time, the rubber bowl is connected to the pushing block and moves, so that the exhaust cavity is connected to the air inlet cavity through the connecting cavity. At the same time, the air pressure in the rubber bowl gradually returns to normal. Under the action of the first spring, the pushing block and the rubber bowl are restored to their original positions to achieve automatic closing. The whole process is completed in an instant to achieve rapid ventilation. The pushing block is not affected by the ventilation pressure and only needs to be touched lightly. The operating pressure is low, the operation is flexible and stable, the valve body will automatically close the ventilation, and continuous ventilation can be achieved. It can be pressed multiple times to form pulsed excretion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structural decomposition of the present invention;

[0017] Figure 2 is a cross-sectional view of the present invention;

[0018] Figure 3 is a cross-sectional view of the valve body;

[0019] Figure 4 It is a cross-sectional view of the rubber bowl;

[0020] Figure 5 is a cross-sectional view of the push block;

[0021] Figure 6 is a cross-sectional view of a switch member;

[0022] Figure 7 is a cross-sectional view of the push rod;

[0023] In the figure, the markings are as follows: 100, valve body; 110, air inlet chamber; 120, exhaust chamber; 130, connecting chamber; 131, first connecting chamber; 132, second connecting chamber; 133, third connecting chamber; 140, rubber bowl; 141, connecting hole; 142, groove; 150, push block; 151, connecting column; 152, exhaust hole; 160, first spring; 200, switch member; 210, push rod; 211, connector; 212 , rod body; 213, push head; 214, inclined section; 215, first sealing ring; 220, first button; 230, second spring; 240, first connecting part; 241, second sealing ring; 250, main body; 251, mounting hole; 252, air outlet; 253, positioning gasket; 254, third sealing ring; 260, second connecting part; 300, outer shell; 310, second button; 320, third spring. DETAILED DESCRIPTION

[0024] like Figures 1 to 7The embodiment of the present invention is a fast pulse air pressure switch control valve device, including a valve body 100, the top and bottom of the valve body 100 are respectively provided with an air intake chamber 110 and an exhaust chamber 120, and the side of the valve body 100 is provided with a connecting chamber 130, the air intake chamber 110 and the exhaust chamber 120 are connected through the connecting chamber 130, and a rubber cup 140 and a pushing block 150 are provided in the connecting chamber 130. Specifically, the connecting chamber 130 includes a first connecting chamber 131, a second connecting chamber 132 and a third connecting chamber 133 which are connected in sequence in a direction away from the valve body 100, and the apertures of the first connecting chamber 131, the second connecting chamber 132 and the third connecting chamber 133 increase in sequence, the air intake chamber 110 is connected with the second connecting chamber 132, the exhaust chamber 120 is connected with the first connecting chamber 131, and the rubber cup 140 is connected with the exhaust chamber 120. The valve body 100 includes a bottom and a bowl wall. The bottom of the rubber bowl 140 is arranged in the second connecting cavity 132 to block the communication between the air inlet cavity 110 and the second connecting cavity 132 and the air exhaust cavity 120 and the first connecting cavity 131, so that the valve body 100 is in a closed and airtight state. The pushing block 150 is arranged in the third connecting cavity 133. The bottom of the rubber bowl 140 is provided with a connecting hole 141. The pushing block 150 is provided with an air exhaust hole 152 and a connecting column 151 matched with the connecting hole 141. The connecting column 151 is vertically connected to the pushing block 150. The connecting column 151 passes through the connecting hole 141. The connecting column 151 can move in the first connecting cavity 131 along the axial direction of the connecting hole 141. A first spring 160 is provided between the rubber bowl 140 and the pushing block 150. A groove 142 is provided on the inner bottom of the rubber bowl 140. The first spring 160 is arranged in the groove 142 for positioning, and the connecting column 151 is arranged in the inner ring of the first spring 160. When the valve body 100 needs to be opened for ventilation, it is only necessary to press the pushing block 150, and the pushing block 150 pushes the rubber bowl 140. Since the aperture of the first connecting cavity 131 is smaller than the aperture of the second connecting cavity 132, the cavity wall of the first connecting cavity 131 hinders the movement of the rubber bowl 140, and the connecting column 151 moves axially along the connecting hole 141. At the same time, the first spring 160 is compressed, and the pushing block 150 squeezes the bowl wall of the rubber bowl 140, so that the air in the rubber bowl 140 is discharged through the exhaust hole 152. The air pressure in the rubber bowl 140 is less than the suction force generated by the outside world, so that the rubber bowl 140 and the pushing block 150 are connected as a whole. After releasing the pushing block 150, Under the elastic force of 160, the pushing block 150 moves to its original position, and the rubber bowl 140 moves with the pushing block 150, and the rubber bowl 140 is separated from the second connecting chamber 132. At this time, the air inlet chamber 110, the second connecting chamber 132, the first connecting chamber 131 and the exhaust chamber 120 are connected in sequence, and the valve body 100 is ventilated. The outside air will enter the rubber bowl 140 from the exhaust hole 152. The bottom of the rubber bowl 140 is provided with an air inlet hole. The position of the air inlet hole does not affect the rubber bowl 140 from hindering the valve body 100 from being connected. The air in the air inlet chamber 110 will also enter the rubber bowl 140 from the air inlet hole, so that the air pressure in the rubber bowl 140 gradually returns to normal, and the suction force gradually disappears. At the same time, under the elastic force of the first spring 160, the pushing block 150 is separated from the rubber bowl 140.Each returns to its original position, and the aperture of the connecting hole 141 gradually expands in the direction close to the valve body 100, which helps to separate the rubber cup 140 from the pushing block 150. The valve body 100 is closed and does not ventilate. The whole process is completed in an instant, realizing rapid ventilation. The pushing block is not affected by the pressure of ventilation, and only needs to be touched lightly. The operating pressure is low, and the operation is flexible and stable. The valve body 100 will automatically close the ventilation, and continuous ventilation can be achieved. Multiple presses can form pulsed excretion.

[0025] The present invention also includes a switch member 200 connected to the connecting cavity 130, a push rod 210 is provided in the switch member 200, the push rod 210 can push the push block 150, the end of the push rod 210 is connected to the first button 220, a second spring 230 is provided between the first button 220 and the switch member 200, pressing the first button 220 can make the push rod 210 push the push block 150, which is convenient for operation, and the second spring 230 can automatically restore the first button 220 and the push rod 210 to their original positions. Specifically, the switch member 200 includes a first connecting portion 240 and a main body 250 connected to each other, the first connecting portion 240 is screwed to the connecting cavity 130, and the end of the first connecting portion 240 is The push block is fitted with a second sealing ring 241 between the first connecting portion 240 and the pushing block 150, and the second sealing ring 241 is installed on the first connecting portion 240. The second sealing ring 241 ensures the sealing between the first connecting portion 240 and the pushing block 150. The main body 250 is provided with a mounting hole 251, and the push rod 210 passes through the mounting hole 251. The push rod 210 includes a connecting head 211, a rod body 212 and a pushing head 213 connected in sequence. The first button 220 is screwed with the connecting head 211, and the rod body 212 is arranged in the mounting hole 251. The diameter of the rod body 212 is smaller than the diameter of the mounting hole 251. The end of the rod body 212 is provided with a diameter that is gradually increased along the pushing direction. The gradually increasing inclined section 214, the end diameter of the inclined section 214 is suitable for the aperture of the mounting hole 251, just blocking the mounting hole 251, a first sealing ring 215 is provided between the inclined section 214 and the push head 213, the first sealing ring 215 is installed on the push head 213, the first sealing ring 215 ensures the sealing between the inclined section 214 and the mounting hole 251, the side of the main body 250 is provided with an air outlet 252 connected to the mounting hole 251, the end of the main body 250 away from the valve body 100 is provided with a positioning gasket 253 matched with the push rod 210, the rod body 212 passes through the positioning gasket 253 for positioning, and one side of the positioning gasket 253 is provided with a gasket connected to the rod body 212 cooperates with the third sealing ring 254, and the third sealing ring 254 is installed in the main body 250. The third sealing ring 254 ensures the sealing of the push rod 210 and the other end of the mounting hole 251. When the push rod 210 is stationary, the inclined section 214 blocks the mounting hole 251. When pushed to move toward the pushing block 150, the inclined section 214 is separated from the mounting hole 251. Since the diameter of the rod body 212 is smaller than the diameter of the mounting hole 251, the air exhausted through the exhaust hole 152 will be discharged through the mounting hole 251 to the air outlet 252. After the push rod 210 is reset, the mounting hole 251 will be blocked again to ensure the stability of the air pressure between the switch member 200 and the pushing block 150.

[0026] The switch element 200 of the present invention also includes a second connecting portion 260 connected to the other end of the main body 250. The second connecting portion 260 is screwed with the shell 300. A second button 310 is arranged in the shell 300. The first button 220 is arranged in the second button 310. A third spring 320 is arranged between the second button 310 and the main body 250. The shell 300 wraps the exposed part to keep the valve body 100 neat in appearance. The valve body 100 can be opened by pressing the second button 310.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A fast pulse air pressure switch control valve device, characterized in that: The invention comprises a valve body (100), wherein the top and bottom of the valve body (100) are respectively provided with an air intake chamber (110) and an air exhaust chamber (120), and the side of the valve body (100) is provided with a connecting chamber (130), wherein the air intake chamber (110) and the air exhaust chamber (120) are connected via the connecting chamber (130), wherein a rubber bowl (140) and a push block (150) are provided in the connecting chamber (130), wherein the bottom of the rubber bowl (140) is provided with a connecting hole (141), wherein the push block (150) is provided with an air exhaust hole (152) and a connecting column (151), wherein the connecting column (151) passes through the connecting hole (141), and wherein a first spring (160) is provided between the rubber bowl (140) and the push block (150); wherein the connecting chamber (130) comprises a plurality of connecting holes (141) and a plurality of connecting holes (141) connected in sequence. A first connecting cavity (131), a second connecting cavity (132) and a third connecting cavity (133), the connecting column (151) can move in the first connecting cavity (131), the bottom of the rubber bowl (140) is arranged in the second connecting cavity (132), the pushing block (150) is arranged in the third connecting cavity (133), the air intake cavity (110) is connected with the second connecting cavity (132), and the air exhaust cavity (120) is connected with the first connecting cavity (131); the aperture of the connecting hole (141) gradually increases in the direction approaching the valve body (100); the inner bottom of the rubber bowl (140) is provided with a groove (142), the first spring (160) is arranged in the groove (142), and the connecting column (151) is arranged in the inner ring of the first spring (160).

2. The fast pulse air pressure switch control valve device according to claim 1, characterized in that: The invention also comprises a switch member (200) connected to the connecting cavity (130), wherein a push rod (210) is provided in the switch member (200), and the push rod (210) can push the push block (150), and a first button (220) is connected to the end of the push rod (210), and a second spring (230) is provided between the first button (220) and the switch member (200).

3. The fast pulse air pressure switch control valve device according to claim 2 is characterized in that: The switch element (200) comprises a first connecting portion (240) and a main body (250) which are connected to each other. The first connecting portion (240) is screwed to the communicating cavity (130). The main body (250) is provided with a mounting hole (251), and the push rod (210) passes through the mounting hole (251).

4. The fast pulse air pressure switch control valve device according to claim 3 is characterized in that: The push rod (210) comprises a connecting head (211), a rod body (212) and a pushing head (213) which are connected in sequence; the first button (220) is screwed to the connecting head (211); the rod body (212) is arranged in the mounting hole (251); the end of the rod body (212) is provided with an inclined section (214) whose diameter gradually increases along the pushing direction; the end diameter of the inclined section (214) is adapted to the hole diameter of the mounting hole (251); and the side of the main body (250) is provided with an air outlet (252) which is in communication with the mounting hole (251).

5. The fast pulse air pressure switch control valve device according to claim 4, characterized in that: A first sealing ring (215) is provided between the inclined section (214) and the pushing head (213), and a second sealing ring (241) is provided between the first connecting portion (240) and the pushing block (150).

6. The fast pulse gas pressure switch control valve device according to claim 4, characterized in that: A positioning gasket (253) is provided at one end of the main body (250) away from the valve body (100), the rod body (212) passes through the positioning gasket (253), and a third sealing ring (254) matching with the rod body (212) is provided on one side of the positioning gasket (253).

7. The fast pulse gas pressure switch control valve device according to claim 3, characterized in that: The switch element (200) further comprises a second connection portion (260) connected to the other end of the main body (250); the second connection portion (260) is screwed to a housing (300); a second button (310) is arranged in the housing (300); the first button (220) is arranged in the second button (310); and a third spring (320) is arranged between the second button (310) and the main body (250).

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