Manual and pneumatic electromagnetic valve integrated control system

Abstract

The invention relates to a manual and pneumatic electromagnetic valve integrated control system which comprises an air cylinder and a pneumatic electromagnetic valve, the air cylinder is provided with a first air chamber and a second air chamber, and the pneumatic electromagnetic valve is provided with a first air port A, a first air port B and a first air port C. The manual and pneumatic electromagnetic valve integrated control system further comprises a manual electromagnetic valve. The manual electromagnetic valve is provided with a second air port A, a second air port B, a second air port C and an operating part, the second air port A and the first air port A are both communicated with one air chamber, the first air port B is communicated with the other air chamber, the second air port B is connected with the first air port C, the second air port C is an air inlet, and the operating part is connected with the second air port C; and the operation piece moves to switch the second air port C to be communicated with the second air port A or the second air port B. According to the technical scheme, the manual and pneumatic electromagnetic valve integrated control system combines manual operation and pneumatic operation, when the pneumatic operation has an obstacle, the air cylinder can be driven to work through manual operation, and normal operation of the air cylinder is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of cylinder control systems, and in particular to an integrated control system for a manual pneumatic solenoid valve. Background Art

[0002] The cylinder includes a cylinder barrel, a piston and a piston rod. The piston is arranged in the cylinder barrel and divides the cylinder barrel into a first air chamber and a second air chamber. One end of the piston rod is connected to the piston, and the other end extends outside the cylinder barrel, and extends out of the second air chamber or retracts into the second air chamber under the action of air pressure. The cylinder barrel is provided with an air port A communicating with the first air chamber and an air port B communicating with the second air chamber. In the prior art, the air port on the cylinder is connected to the solenoid valve, and the solenoid valve controls the air intake from the air port A or the air intake from the air port B to realize the extension or retraction of the piston rod. However, when the solenoid valve is blocked, the cylinder cannot work, thereby affecting the normal operation of the valve. Summary of the invention

[0003] Purpose of the invention: In order to overcome the defects of the prior art, the present invention provides an integrated control system for a manual pneumatic solenoid valve, which combines manual operation with pneumatic operation. When there is an obstacle in the pneumatic operation, the cylinder can be driven to work by manual operation without affecting the normal operation of the cylinder.

[0004] The technical solution of the present invention: a manual pneumatic solenoid valve integrated control system, including a cylinder and a pneumatic solenoid valve, the cylinder is provided with a first air chamber and a second air chamber, the pneumatic solenoid valve is provided with a first air port A, a first air port B and a first air port C, and also includes a manual solenoid valve, the manual solenoid valve is provided with a second air port A, a second air port B, a second air port C and an operating member, the second air port A and the first air port A are both connected to one of the air chambers, and a one-way valve is provided between the second air port A and its first air port A, the first air port B is connected to another air chamber, the second air port B is connected to the first air port C, the second air port C is an air inlet connected to an external air supply device, the movement of the operating member can switch the second air port C to be connected to the second air port A or to the second air port B, and the operation of the pneumatic solenoid valve can drive the first air port C to be connected to the first air port A or to the first air port B.

[0005] By adopting the above technical solution, the cylinder can be used to control the opening or closing of the valve, and it has both electric and manual control functions, which is more practical. When the valve is normally open, you can independently choose to control the valve closing through pneumatic operation or manual operation. However, when the pneumatic solenoid valve fails and cannot be driven, you can choose manual drive to avoid affecting normal work.

[0006] The present invention is further configured as follows: the cylinder is further provided with a third air port A communicating with the first air chamber and a third air port B communicating with the second air chamber; When the pneumatic solenoid valve works and drives the first air port C to be connected with the first air port A, the second air port C, the second air port B, the first air port C, the first air port A and the third air port A are connected in sequence to form a first air intake passage, and the piston rod of the cylinder extends. When the pneumatic solenoid valve works and drives the first air port C to be connected with the first air port B, the second air port C, the second air port B, the first air port C, the first air port B and the third air port B are connected in sequence to form a second air intake passage, and the piston rod of the cylinder retracts. When the manual operating part moves outward to drive the second air port C to be connected with the second air port A, the second air port C, the second air port A and the third air port A are connected in sequence to form a third air intake passage, and the piston rod of the cylinder extends. When the manual operating part moves inward to drive the second air port C to be connected with the second air port B, the second air port C, the second air port B, the first air port C, the first air port B and the third air port B are connected in sequence to form a fourth air intake passage, and the piston rod of the cylinder retracts.

[0007] With the above further arrangement, during manual operation, the operating member is pulled outward, the second air port C is connected to the second air port A, the gas flows out from the second air port A and enters the first air chamber from the third air port A, the piston in the first air chamber is pushed toward the second air chamber, the piston rod extends out of the cylinder, the operating member is pressed inward, the second air port C is disconnected from the second air port A, and connected to the second air port B, the gas flows out from the second air port B, passes through the first air port C and the first air port B, and finally enters the second air chamber from the third air port B, pushing the piston to drive the piston rod to retract. During pneumatic operation, the first air port C is connected with the first air port A, and the second air port C is connected with the second air port B. The gas flows out from the second air port B, passes through the first air port C and the first air port A, and finally enters the first air chamber from the third air port A, pushing the piston in the first air chamber toward the second air chamber, and the piston rod extends out of the cylinder. When the first air port C is disconnected from the first air port A and connected with the first air port B, the gas flows from the second air port C to the second air port B, and flows out from the second air port B, passes through the first air port C and the first air port B, and finally enters the second air chamber from the third air port B, pushing the piston to drive the piston rod to retract.

[0008] The present invention is further configured as follows: the pneumatic solenoid valve is provided with a first exhaust port, and the manual solenoid valve is provided with a second exhaust port; When the piston rod of the cylinder is extended during pneumatic operation, the third air port B, the first air port B and the first exhaust port are connected in sequence to form a first exhaust passage; when the piston rod of the cylinder is retracted during pneumatic operation, the third air port A, the first air port A and the first exhaust port are connected in sequence to form a second exhaust passage; When manually operated and the piston rod of the cylinder is extended, the third air port B, the first air port B, the first air port C, the second air port B and the second exhaust port are connected in sequence to form a third exhaust passage. When manually operated and the piston rod of the cylinder is retracted, the third air port A, the first air port A and the first exhaust port are connected in sequence to form a fourth exhaust passage.

[0009] With the above further arrangement, when air is taken into one of the air chambers, the piston is pushed to move, and the gas in the other air chamber is discharged, the gas in the air chamber is emptied, ensuring that the piston is in place and preventing the piston rod from rebounding.

[0010] The present invention is further configured as follows: a three-way valve is provided between the first air port A, the second air port A and the third air port A.

[0011] By adopting the above further arrangement, the connection is convenient and the flow direction of the gas can be controlled easily.

[0012] The present invention is further configured as follows: the first exhaust port is provided with two, namely the first exhaust port A and the first exhaust port B. When pneumatic operation is performed and the piston rod of the cylinder is extended, the third air port B, the first air port B and the first exhaust port B are connected. When pneumatic operation is performed and the piston rod of the cylinder is retracted, the third air port A, the first air port A and the first exhaust port A are connected.

[0013] By adopting the above further arrangement, it is better to distinguish whether the piston rod of the gas rod is extended or retracted, and the first gas port A corresponds to the first exhaust port A, and the first gas port B corresponds to the first exhaust port B, so the exhaust route is short and more reasonable.

[0014] The present invention is further provided with a muffler on each of the first exhaust port and the second exhaust port.

[0015] The above further configuration is adopted to achieve a silencing effect, so that the noise during exhaust is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a pneumatic solenoid valve in a specific embodiment of the present invention when it is working and the piston rod is extended; Figure 2 It is a schematic diagram of a pneumatic solenoid valve in a specific embodiment of the present invention when it is working and the piston rod is retracted; Figure 3 It is a schematic diagram of a manual solenoid valve in a specific embodiment of the present invention when it is working and the piston rod is extended; Figure 4 It is a schematic diagram of a pneumatic solenoid valve according to a specific embodiment of the present invention; Figure 5 It is a schematic diagram of a manual solenoid valve according to a specific embodiment of the present invention.

[0017] In the figure, 1, cylinder; 11, first air chamber; 12, second air chamber; 13, third air port A; 14, third air port B; 15, piston; 16, piston rod; 2, pneumatic solenoid valve; 21, first air port A; 22, first air port B; 23, first air port C; 24, first exhaust port; 241, first exhaust port A; 242, second exhaust port B; 3, manual solenoid valve; 31, second air port A; 32, second air port B; 33, second air port C; 34, operating member; 35, one-way valve; 36, second exhaust port; 4, three-way valve. DETAILED DESCRIPTION

[0018] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, in the present invention, the descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0021] In addition, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by those skilled in the art. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] like Figure 1-5As shown, a manual pneumatic solenoid valve integrated control system includes a cylinder 1 and a pneumatic solenoid valve 2, wherein the cylinder 1 is provided with a first air chamber 11 and a second air chamber 12, the pneumatic solenoid valve 2 is provided with a first air port A21, a first air port B22 and a first air port C23, and also includes a manual solenoid valve 3, wherein the manual solenoid valve 3 is provided with a second air port A31, a second air port B32, a second air port C33 and an operating member 34, the first air port A21 and the second air port A31 are both connected to one of the air chambers, and a one-way valve 35 is provided between the second air port A31 and the first air port A21, and the first air port B22 is connected to the other air chamber, and the first air port A21 and the second air port A31 can be both connected to the first air chamber 11, and the first air port B22 is connected to the second air chamber 12, or the first air port A21 and the second air port A31 are both connected to the second air chamber 12, and the first air port B22 is connected to The first air chamber 11 is connected, and the second air port B32 is connected to the first air port C23. The second air port C33 is an air inlet connected to an external air supply device. The movement of the operating member 34 can switch the second air port C33 to be connected to the second air port A31 or to the second air port B32. The operating member 34 can be pulled outward or pressed inward to switch. The pneumatic solenoid valve can switch the first air port C23 to be connected to the first air port A21 or to the first air port B22. The cylinder can be used to control the opening or closing of the valve. It has both electric and manual control functions, which is more practical. When the valve is normally open, you can choose to control the valve to be closed by pneumatic operation or manual operation. However, when the pneumatic solenoid valve fails and cannot be driven, you can choose manual drive to avoid affecting normal operation. The setting of the one-way valve 35 makes the gas flow from the first air port A21. It can only flow toward the air chamber, but not toward the second air port A31. Figure 1-3 The arrow in the middle indicates the flow direction of the gas, and the arrow next to the piston rod indicates the movement direction of the piston rod.

[0023] Specifically, the technical solution of the present application is that the first air port A21 and the second air port A31 are both connected to the first air chamber 11, the first air port B22 is connected to the second air chamber 12, and the cylinder 1 is further provided with a third air port A13 connected to the first air chamber 11 and a third air port B14 connected to the second air chamber 12; When the pneumatic solenoid valve works to drive the first air port C23 to be connected with the first air port A21, the second air port C33, the second air port B32, the first air port C23, the first air port A21 and the third air port A13 are connected in sequence to form a first air intake passage, and the piston rod 16 of the cylinder 1 extends. When the pneumatic solenoid valve works to drive the first air port C23 to be connected with the first air port B22, the second air port C33, the second air port B32, the first air port C23, the first air port B22 and the third air port B14 are connected in sequence to form a second air intake passage, and the piston rod 16 of the cylinder 1 retracts; When the manual operating member 34 moves outward to drive the second air port C33 to communicate with the second air port A31, the second air port C33, the second air port A31 and the third air port A13 are connected in sequence to form a third air intake passage, and the piston rod 16 of the cylinder 1 extends. When the manual operating member 34 moves inward to drive the second air port C33 to communicate with the second air port B32, the second air port C33, the second air port B32, the first air port C23, the first air port B22 and the third air port A13 are connected in sequence to form a third air intake passage. The air ports B14 are connected in sequence to form a fourth air intake passage. The piston rod 16 of the cylinder 1 is retracted. During pneumatic operation, the second air port C33 is connected to the second air port B32. The gas flows out from the second air port B32 and passes through the first air port C23 and the first air port A21. Finally, the gas enters the first air chamber 11 from the third air port A13, pushing the piston 15 in the first air chamber 11 toward the second air chamber 12. The piston rod 16 extends out of the cylinder and is connected to the second air port C33. The second air port B32 is disconnected, and when it is connected to the second air port B32, the gas flows out from the second air port B32, passes through the first air port C23, the first air port B22, and finally enters the second air chamber 12 from the third air port B14, pushing the piston 15 to drive the piston rod 16 to retract. When manually operated, the operating member 34 is pulled outward, so that the second air port C33 is connected to the second air port A31, and the gas flows out from the second air port A31 and enters the first air chamber 12 from the third air port A13. In the air chamber 11, the piston 15 in the first air chamber 11 is pushed toward the second air chamber 12, the piston rod 16 extends out of the cylinder, and the operating member 34 is pressed inward, so that the second air port C33 is disconnected from the second air port A31, and when it is connected with the second air port B32, the gas flows out from the second air port B32, passes through the first air port C23 and the first air port B22, and finally enters the second air chamber 12 from the third air port B14, pushing the piston 15 to drive the piston rod 16 to retract.

[0024] The pneumatic solenoid valve 2 is provided with a first exhaust port 24, and the manual solenoid valve 3 is provided with a second exhaust port 36; When the pneumatic operation is performed and the piston rod of the cylinder 1 is extended, the third air port B14, the first air port B22 and the first exhaust port 24 are connected in sequence to form a first exhaust passage; when the pneumatic operation is performed and the piston rod 16 of the cylinder 1 is retracted, the third air port A13, the first air port A21 and the first exhaust port 24 are connected in sequence to form a second exhaust passage; When the piston rod of the cylinder 1 is extended by manual operation, the third air port B14, the first air port B22, the first air port C23, the second air port B32 and the second exhaust port 36 are connected in sequence to form a third exhaust passage. When the piston rod of the cylinder 1 is retracted by manual operation, the third air port A13, the first air port A21 and the first exhaust port 24 are connected in sequence to form a fourth exhaust passage. When air is taken into one of the air chambers, the piston 15 is pushed to move, and the gas in the other air chamber is discharged to empty the gas in the air chamber, thereby ensuring that the piston 15 is in place and preventing the piston rod 16 from rebounding.

[0025] A three-way valve 4 is provided between the first gas port A21, the second gas port A31 and the third gas port A13, which is convenient for connection and for controlling the flow direction of the gas.

[0026] The first exhaust port 24 is provided with two, namely the first exhaust port A241 and the first exhaust port B242; when pneumatic operation is performed and the piston rod 16 of the cylinder 1 is extended, the third air port B14, the first air port B22 and the first exhaust port B242 are connected, and when pneumatic operation is performed and the piston rod 16 of the cylinder 1 is retracted, the third air port A13, the first air port A21 and the first exhaust port A241 are connected, so as to better distinguish whether the piston rod 16 of the air rod is extended or retracted, and the first air port A21 corresponds to the first exhaust port A, and the first air port B22 corresponds to the first exhaust port B, so the exhaust route is short and more reasonable; the first exhaust port 24 and the second exhaust port 36 are both provided with a muffler, which has a muffler effect and reduces the noise during exhaust.

Claims

1. A manual pneumatic solenoid valve integrated control system, comprising a cylinder (1) and a pneumatic solenoid valve (2), wherein the cylinder (1) is provided with a first air chamber (11) and a second air chamber (12), and the pneumatic solenoid valve (2) is provided with a first air port A (21), a first air port B (22) and a first air port C (23), characterized in that: The invention also comprises a manual solenoid valve (3), wherein the manual solenoid valve (3) is provided with a second air port A (31), a second air port B (32), a second air port C (33) and an operating member (34), wherein the second air port A (31) and the first air port A (21) are both connected to one of the air chambers, and a one-way valve (35) is provided between the second air port A (31) and the first air port A (21), the first air port B (22) is connected to the other air chamber, the second air port B (32) is connected to the first air port C (23), the second air port C (33) is an air inlet connected to an external air supply device, the operating member (34) can be moved to switch the second air port C (33) to be connected to the second air port A (31) or to be connected to the second air port B (32), and the pneumatic solenoid valve can switch the first air port C (23) to be connected to the first air port A (21) or to be connected to the first air port B (22).

2. The integrated control system of a manual pneumatic solenoid valve according to claim 1, characterized in that: The cylinder is also provided with a third air port A (13) communicating with the first air chamber (11) and a third air port B (14) communicating with the second air chamber (12); When the pneumatic solenoid valve is operated to drive the first air port C (23) to be connected with the first air port A (21), the second air port C (33), the second air port B (32), the first air port C (23), the first air port A (21) and the third air port A (13) are connected in sequence to form a first air intake passage, and the piston rod (16) of the cylinder (1) is extended; when the pneumatic solenoid valve is operated to drive the first air port C (23) to be connected with the first air port B (22), the second air port C (33), the second air port B (32), the first air port C (23), the first air port B (22) and the third air port B (14) are connected in sequence to form a second air intake passage, and the piston rod (16) of the cylinder (1) is retracted; When the manual operating member (34) moves outward and drives the second air port C (33) to communicate with the second air port A (31), the second air port C (33), the second air port A (31) and the third air port A (13) are connected to form a fourth air intake passage, and the piston rod (16) of the cylinder (1) extends. When the manual operating member (34) moves inward and drives the second air port C (33) to communicate with the second air port B (32), the second air port C (33), the second air port B, the first air port C (23), the first air port B (22) and the third air port B (14) are connected in sequence to form a fourth air intake passage, and the piston rod (16) of the cylinder (1) retracts.

3. The integrated control system of a manual pneumatic solenoid valve according to claim 2, characterized in that: The pneumatic solenoid valve (2) is provided with a first exhaust port (24), and the manual solenoid valve (3) is provided with a second exhaust port (36); When the piston rod (16) of the cylinder (1) is pneumatically operated and extended, the third air port B (14), the first air port B (22) and the first exhaust port (24) are connected in sequence to form a first exhaust passage; when the piston rod (16) of the cylinder (1) is pneumatically operated and retracted, the third air port A (13), the first air port A (21) and the first exhaust port (24) are connected in sequence to form a second exhaust passage; When the piston rod (16) of the cylinder (1) is extended during manual operation, the third air port B (14), the first air port B (22), the first air port C (23), the second air port B (32) and the second exhaust port (36) are connected in sequence to form a third exhaust passage. When the piston rod (16) of the cylinder (1) is retracted during manual operation, the third air port A (13), the first air port A (21) and the first exhaust port (24) are connected in sequence to form a fourth exhaust passage.

4. The integrated control system for a manual pneumatic solenoid valve according to claim 2 or 3, characterized in that: A three-way valve (4) is provided between the third air port A (13), the first air port A (21) and the second air port A (31).

5. The integrated control system of a manual pneumatic solenoid valve according to claim 3, characterized in that: The first exhaust port (24) is provided with two, namely a first exhaust port A (241) and a first exhaust port B (242). When the piston rod (16) of the cylinder (1) is extended by pneumatic operation, the third air port B (14), the first air port B (22) and the first exhaust port B (242) are connected. When the piston rod (16) of the cylinder (1) is retracted by pneumatic operation, the third air port A (13), the first air port A (21) and the first exhaust port A (241) are connected.

6. The integrated control system for a manual pneumatic solenoid valve according to claim 3 or 5, characterized in that: The first exhaust port (24) and the second exhaust port (36) are both provided with a muffler.

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