Cylinder control system

Abstract

The utility model discloses an air cylinder control system which comprises an air cylinder and an electromagnetic valve, the air cylinder comprises a cylinder body and a piston, and an inner cavity of the piston cylinder body is divided into a first cavity body and a second cavity body; the electromagnetic valve comprises a valve body, a first valve element and a second valve element, the valve body is provided with a main channel, an air inlet, a first exhaust port, a second exhaust port, a first communication port and a second communication port, the air inlet, the first exhaust port, the second exhaust port, the first communication port and the second communication port are all communicated with the main channel, the first communication port is communicated with the first cavity, and the second valve element is used for blocking or opening the air inlet. The first valve element is arranged in the main channel in a sliding mode so that the valve body can be switched between a first air inlet mode and a second air inlet mode. The air cylinder control system is suitable for controlling the air cylinder to operate when the piston of the air cylinder is jammed, so that the piston can quickly respond to the control of the electromagnetic valve, the air cylinder is prevented from being jammed in action, and when the jamming degree of the piston is large, the piston can overcome the jamming to smoothly act, and normal operation of the air cylinder is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder control valves, in particular to a cylinder control system. Background Art

[0002] A double-control piston cylinder is a cylinder that can push (thrust) and pull (pull) at the same time. When compressed air enters the left or right side of the piston, it can control the piston to move to the right or left, driving the piston rod to extend or retract, thereby achieving push and pull work.

[0003] The dual-control piston cylinder is connected to a solenoid valve. By switching the state of the solenoid valve, the compressed air can be controlled to enter the left or right side of the piston, generating a pressure difference on both sides of the piston, thereby driving the piston rod to extend or retract. When the piston is stuck during operation, a larger pressure difference is required to drive the piston to move. Therefore, under the condition of constant intake pressure, it takes longer to reach a pressure difference sufficient to drive the piston to move after the solenoid valve state is switched, resulting in a longer piston response time and a stuck cylinder action. Even when the piston is stuck to a large extent, the pressure difference on both sides of the piston cannot drive the piston to operate. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the utility model proposes a cylinder control system, which is suitable for controlling the operation of the cylinder when the piston of the cylinder is stuck, so that the piston can quickly respond to the control of the solenoid valve to prevent the cylinder movement from being stuck due to the piston sticking; at the same time, when the degree of piston sticking is large, the piston can overcome the sticking and move smoothly to ensure the normal operation of the cylinder.

[0006] The cylinder control system of the embodiment of the utility model includes a cylinder and a solenoid valve, the cylinder includes a cylinder body and a piston, the cylinder body has an inner cavity, the piston is movably arranged in the inner cavity, and the inner cavity is divided into a first cavity and a second cavity; the solenoid valve includes a valve body, a first valve core and a second valve core, the valve body has a main channel and an air inlet, a first exhaust port, a second exhaust port, a first connecting port and a second connecting port, all of which are connected to the main channel, the first connecting port is connected to the first cavity, and the second connecting port is connected to the second cavity, the second valve core is arranged at the air inlet and is slidably connected to the valve body to block or open the air inlet, and the first valve core is slidably arranged in the main channel to enable the valve body to switch between a first air intake mode for controlling gas to enter the first cavity and a second air intake mode for controlling gas to enter the second cavity.

[0007] In some embodiments, an air intake channel is provided between the air inlet and the main channel, and the valve body has a control channel, which is arranged to intersect with the air intake channel to form an intersection section; the second valve core includes a blocking section, which is slidably provided in the control channel, and when the blocking section slides to the intersection section, the air intake channel is blocked.

[0008] In some embodiments, the second valve core further includes a rod segment, a cross section of the rod segment is smaller than a cross section of the blocking segment, and when the rod segment slides to the intersection segment, the air inlet passage is opened.

[0009] In some embodiments, the control passage intersects the intake passage perpendicularly.

[0010] In some embodiments, a cross-section of the control passage is the same as a cross-section of the intake passage.

[0011] In some embodiments, the solenoid valve also includes a control coil and a spring, wherein the control coil and the spring are both connected to the valve body and are respectively arranged at both ends of the second valve core, the control coil is energized to apply a first force to the second valve core, and the spring is energized to apply a second force to the second valve core, and the directions of the first force and the second force are opposite.

[0012] In some embodiments, the first valve core includes a first core body, a second core body and a third core body arranged in sequence along the extension direction of the main channel, the first core body, the second core body and the side wall of the main channel form a first connecting section, the second core body, the third core body and the side wall of the main channel form a second connecting section; in the first air intake mode, the first connecting port, the first connecting section and the air intake form a first air intake path, and the second connecting port, the second connecting section and the second exhaust port form a first exhaust path; in the second air intake mode, the second connecting port, the second connecting section and the air intake form a second air intake path, and the first connecting port, the first connecting section and the first exhaust port form a second exhaust path.

[0013] In some embodiments, the second valve core further includes a main rod, and the first core body, the second core body and the third core body are all connected to the main rod.

[0014] In some embodiments, the solenoid valve also includes a first coil and a second coil, the first coil and the second coil are arranged relatively at two ends of the main rod, the first coil is used to apply a first driving force to the main rod when the first coil is energized, and the second coil is used to apply a second driving force to the main rod when the second coil is energized, and the directions of the first driving force and the second driving force are opposite.

[0015] The cylinder control system of the embodiment of the utility model is suitable for controlling the operation of the cylinder when the piston of the cylinder is stuck, increasing the pressure difference between the first cavity and the second cavity, so that the piston can quickly respond to the control of the solenoid valve, and preventing the cylinder movement from being stuck due to the piston being stuck; at the same time, when the degree of piston sticking is large, the piston can overcome the sticking and move smoothly to ensure the normal operation of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a cylinder control system according to an embodiment of the utility model, in which the valve body is in the first air intake mode and the air intake port is blocked.

[0017] Figure 2 It is a schematic diagram of a cylinder control system according to an embodiment of the utility model, in which the valve body is in the first intake mode and the intake port is open.

[0018] Figure 3 It is a schematic diagram of a cylinder control system according to an embodiment of the utility model, in which the valve body is in the second air intake mode and the air intake port is blocked.

[0019] Figure 4 It is a schematic diagram of a cylinder control system according to an embodiment of the utility model, in which the valve body is in the second intake mode and the intake port is open.

[0020] Figure 5 It is a structural schematic diagram of a solenoid valve of a cylinder control system according to an embodiment of the utility model.

[0021] Figure 6 yes Figure 5 Sectional view along AA.

[0022] Reference numerals: 100, cylinder control system;

[0023] 10. Cylinder; 11. Cylinder body; 111. First cavity; 112. Second cavity; 12. Piston rod; 121. Piston; 122. Rod body;

[0024] 20. Solenoid valve;

[0025] 3. Valve body; 31. Main channel; 32. First exhaust port; 33. Air inlet; 34. Second exhaust port; 35. First communication port; 36. Second communication port; 37. Air inlet channel; 38. Control channel;

[0026] 4. first valve core; 41. first core body; 42. second core body; 43. third core body; 44. main rod;

[0027] 5. second valve core; 51. blocking section; 52. rod section; 53. sealing section;

[0028] 61. Control coil; 62. Spring;

[0029] 71. First coil; 72. Second coil. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0031] like Figure 1 As shown, the cylinder 10 includes a cylinder body 11 and a piston rod 12, the piston rod 12 includes a piston 121 and a rod body 122, the piston 121 divides the inner cavity of the cylinder body 11 into a first cavity 111 and a second cavity 112, the rod body 122 passes through the second cavity 112 and the cylinder wall of the cylinder body 11, and one end of the rod body 122 is arranged in the second cavity 112 and is connected to the piston 121, and the other end is used to connect the load.

[0032] like Figures 1 to 6 As shown, the cylinder control system 100 of the embodiment of the utility model includes a cylinder 10 and a solenoid valve 20; the cylinder 10 includes a cylinder body 11 and a piston 121, the piston 121 is movably arranged in the inner cavity of the cylinder body 11, and divides the inner cavity into a first cavity 111 and a second cavity 112; the solenoid valve 20 includes a valve body 3, a first valve core 4 and a second valve core 5, the valve body 3 has a main channel 31 and an air inlet 33, a first exhaust port 32, and a second exhaust port 34 all connected to the main channel 31 , a first connecting port 35 and a second connecting port 36, the first connecting port 35 is connected to the first cavity 111, the second connecting port 36 is connected to the second cavity 112, the second valve core 5 is arranged at the air inlet 33 and is slidably connected to the valve body 3 to block or open the air inlet 33, the first valve core 4 is slidably arranged in the main channel 31, so that the valve body 3 can switch between a first air intake mode for controlling the gas to enter the first cavity 111 and a second air intake mode for controlling the gas to enter the second cavity 112.

[0033] The cylinder control system 100 of the embodiment of the utility model is suitable for controlling the operation of the cylinder 10 when the piston 121 of the cylinder 10 is stuck, increasing the pressure difference between the first cavity 111 and the second cavity 112, so that the piston 121 can quickly respond to the control of the solenoid valve 20, and preventing the cylinder 10 from being stuck due to the piston 121 being stuck; at the same time, when the degree of sticking of the piston 121 is large, the piston 121 can overcome the sticking and move smoothly to ensure the normal operation of the cylinder 10.

[0034] Specifically, Figure 1 and Figure 2As shown, when the piston rod 12 needs to be extended, the control valve is switched to the first air intake mode, and the air inlet 33 is blocked for a preset time (the preset time in this embodiment is 20 seconds) through the second valve core 5. After the preset time, the air inlet 33 is controlled to open by the second valve core 5. Thus, before the compressed air enters the first cavity 111, the air in the second cavity 112 is discharged for 20 seconds through the second connection port and the second exhaust port 34, so that the air pressure in the second cavity 112 is reduced, and the pressure difference between the second cavity 112 and the first cavity 111 is increased; after 20 seconds, the air inlet 33 is opened, and the compressed air enters the first cavity 111 through the air inlet 33 and the first connection port. The pressure difference between the first cavity 111 and the second cavity 112 increases rapidly and is sufficient to drive the piston 121 to operate, so that the piston 121 can respond quickly, preventing the piston 121 from being stuck or even unable to move due to jamming when extending.

[0035] like Figure 3 and Figure 4 As shown, when the piston rod 12 needs to be retracted, the control valve is switched to the second air intake mode, and the air inlet 33 is blocked for a preset time (the preset time in this embodiment is 20 seconds) through the second valve core 5. After the preset time, the air inlet 33 is controlled to open by the second valve core 5. Thus, before the compressed air enters the second cavity 112, the air in the first cavity 111 is discharged for 20 seconds through the first connection port and the first exhaust port 32, so that the air pressure of the first cavity 111 is reduced, and the pressure difference between the first cavity 111 and the second cavity 112 is increased; after 20 seconds, the air inlet 33 is opened, and the compressed air enters the second cavity 112 through the air inlet 33 and the second connection port. The pressure difference between the second cavity 112 and the first cavity 111 increases rapidly and is sufficient to drive the piston 121 to operate, so that the piston 121 can respond quickly, preventing the piston 121 from being stuck or even unable to move due to jamming when retracting.

[0036] Of course, in other embodiments, the preset time may be set to 15 seconds, 25 seconds, etc., depending on the degree of sticking of the piston 121 .

[0037] In some embodiments, Figure 5 and Figure 6 As shown, an air intake channel 37 is provided between the air intake port 33 and the main channel 31, and the valve body 3 has a control channel 38, which intersects with the air intake channel 37 to form an intersection section; the second valve core 5 includes a blocking section 51, which is slidably provided on the control channel 38, and when the blocking section 51 slides to the intersection section, the air intake channel 37 is blocked.

[0038] The second valve core 5 is controlled to slide in the control channel 38. When the blocking section 51 slides to the intersection section, the air inlet channel 37 is blocked. When the blocking section 51 slides away from the intersection section, the air inlet channel 37 is opened. Therefore, by controlling the time when the blocking section 51 is located at the intersection section, the preset time when the air inlet 33 is blocked can be controlled. The structure is relatively simple and the processing cost can be reduced.

[0039] In some embodiments, the second valve core 5 further includes a rod section 52 , the cross section of the rod section 52 is smaller than the cross section of the blocking section 51 , and when the rod section 52 slides to the intersection section, the air inlet passage 37 is opened.

[0040] Through the above arrangement, when the rod segment 52 moves to the intersection segment, the outer side wall of the rod segment 52 and the side wall of the intersection segment form a gap, and compressed air can pass through the air inlet channel 37 through the gap, so that the air inlet 33 is opened.

[0041] As an example, Figure 5 and Figure 6 As shown, the control channel 38 and the air inlet channel 37 intersect, the control channel 38 runs through the valve body 3, and the second valve core 5 is slidably disposed in the control channel 38; the second valve core 5 also includes a sealing section 53, and the sealing section 53 and the blocking section 51 are respectively disposed at both ends of the rod section 52 and are both connected to the rod section 52. The sealing section 53 and the blocking section 51 can respectively seal the two ends of the control channel 38 to ensure the sealing of the control channel 38 and prevent gas from overflowing from the control channel 38.

[0042] In some embodiments, the cross-section of control passage 38 is the same as the cross-section of intake passage 37 .

[0043] Therefore, when the blocking portion moves to the intersection section, the air inlet passage 37 can be completely blocked, so that the compressed air cannot enter the first cavity 111 or the second cavity 112 through the air inlet 33 .

[0044] In some embodiments, control passage 38 intersects intake passage 37 at right angles.

[0045] By making the control passage 38 intersect the intake passage 37 vertically, the processing of the intake passage 37 and the control passage 38 is more convenient.

[0046] Of course, in other embodiments, the control channel 38 and the intake channel 37 may be intersected at an angle, for example, the center line of the control channel 38 and the center line of the intake channel 37 may be set at an angle α, where the range of α is 45° to 90°, for example 75° or 60°.

[0047] In some embodiments, the solenoid valve 20 also includes a control coil 61 and a spring 62, which are both connected to the valve body 3 and are respectively arranged at both ends of the second valve core 5. The control coil 61 is energized to apply a first force to the second valve core 5, and the spring 62 is energized to apply a second force to the second valve core 5. The directions of the first force and the second force are opposite.

[0048] The second valve core 5 can move back and forth under the action of the first force and the second force, so that the blocking section 51 and the rod section 52 are alternately arranged at the intersection section, so that the air inlet 33 can be freely switched on and off. In addition, the first force can be provided by electrifying the control coil 61, so that the first valve core 4 can be remotely controlled, thereby improving the convenience of operation.

[0049] As an example, Figure 6 As shown, the blocking section 51, the rod section 52 and the sealing section 53 are arranged in sequence along the direction away from the control coil 61. When the control coil 61 is energized, it can apply a thrust to the second valve core 5, that is, the first force is a thrust. The spring 62 is installed in the control channel 38. A mounting plate is connected to the outside of the valve body 3, and the mounting plate blocks the control channel 38. The two ends of the spring 62 are respectively connected to the sealing plate and the mounting plate. The spring 62 is in a compressed state. The spring 62 can apply a thrust to the second valve core 5, that is, the second force is also a thrust, and the second force is smaller than the first force.

[0050] The control coil 61 is energized for 20 seconds, and the first force overcomes the second force to push the second valve core 5 toward the direction close to the spring 62, so that the blocking section 51 is located in the intersection section, and the air inlet 33 is blocked for 20 seconds; after 20 seconds, the control coil 61 loses power, and the second valve core 5 slides toward the direction close to the control coil 61 under the push of the second force, so that the rod section 52 is located in the intersection section, and the air inlet 33 is opened.

[0051] In some embodiments, Figure 5 As shown, the first valve core 4 includes a first core body 41, a second core body 42 and a third core body 43 which are arranged in sequence along the extension direction of the main channel 31, the first core body 41, the second core body 42 and the side wall of the main channel 31 form a first connecting section, and the second core body 42, the third core body 43 and the side wall of the main channel 31 form a second connecting section; in the first air intake mode, the first connecting port 35, the first connecting section and the air intake port 33 form a first air intake path, and the second connecting port 36, the second connecting section and the second exhaust port 34 form a first exhaust path; in the second air intake mode, the second connecting port 36, the second connecting section and the air intake port 33 form a second air intake path, and the first connecting port 35, the first connecting section and the first exhaust port 32 form a second exhaust path.

[0052] By adjusting the positions of the first core 41 , the second core 42 and the third core 43 in the main channel 31 , the valve body 3 can be controlled to switch between the first air intake mode and the second air intake mode. The operation is relatively simple and the production cost is low.

[0053] In some embodiments, the second valve core 5 further includes a main rod 44 , and the first core body 41 , the second core body 42 and the third core body 43 are all connected to the main rod 44 .

[0054] The first core 41 , the second core 42 and the third core 43 are connected as a whole through the main rod 44 , and the movement of the first core 41 , the second core 42 and the third core 43 can be controlled simultaneously, thereby improving the convenience of operation.

[0055] As an example, Figure 5 As shown, the valve body 3 is in the shape of a rectangular parallelepiped, and the main channel 31 extends along the length direction of the valve body 3. The air inlet 33, the first exhaust port 32 and the second exhaust port 34 are arranged on one side of the main channel 31 and are all connected to the main channel 31. The first exhaust port 32, the air inlet 33 and the second exhaust port 34 are arranged in sequence along the extension direction of the main channel 31; the first connecting port 35 and the second connecting port 36 are arranged on one side of the main channel 31 and are both connected to the main channel 31. Along the extension direction of the main channel 31: the first connecting port 35 is arranged between the first exhaust port 32 and the air inlet 33, and the second connecting port 36 is arranged between the air inlet 33 and the second exhaust port 34.

[0056] The first core 41, the second core 42 and the third core 43 are arranged in sequence along the extension direction of the main channel 31. The first core 41 is closer to the first exhaust port 32 than the third core 43. The cross sections of the first core 41, the second core 42 and the third core 43 are the same as the cross section of the main channel 31. The main rod 44 passes through the first core 41, the second core 42 and the third core 43 in sequence. Moving the main rod 44 can move the first core 41, the second core 42 and the third core 43 at the same time.

[0057] In the first intake mode, the main rod 44 moves from the first core 41 to the direction of the third core 43, so that the first core 41 is located between the first exhaust port 32 and the first connecting port 35, the second core 42 is located between the intake port 33 and the second connecting port 36, and the third core 43 is located on the side of the second exhaust port 34 away from the intake port 33; the intake port 33, the first connecting section and the first connecting port 35 form a first intake path, and the second connecting port 36, the second connecting section and the second exhaust port 34 form a first exhaust path, compressed air can enter the first cavity 111 through the first intake path, and the air in the second cavity 112 can be discharged through the first exhaust path to drive the piston rod 12 of the cylinder 10 to extend.

[0058] In the second intake mode, the main rod 44 moves from the third core 43 toward the first core 41, so that the first core 41 is located on the side of the first exhaust port 32 away from the intake port 33, the second core 42 is located between the first connecting port 35 and the intake port 33, and the third core 43 is located between the second connecting port 36 and the second exhaust port 34; the intake port 33, the second connecting section and the second connecting port 36 form a second intake path, and the first connecting port 35, the first connecting section and the first exhaust port 32 form a second exhaust path, compressed air can enter the second cavity 112 through the second intake path, and the air in the first cavity 111 can be discharged through the second exhaust path to drive the piston rod 12 of the cylinder 10 to retract.

[0059] In some embodiments, the solenoid valve 20 also includes a first coil 71 and a second coil 72, which are arranged relatively at both ends of the main rod 44. When the first coil 71 is energized, it is used to apply a first driving force to the main rod 44, and when the second coil 72 is energized, it is used to apply a second driving force to the main rod 44. The directions of the first driving force and the second driving force are opposite.

[0060] By electrifying the first coil 71 and the second coil 72 , the first driving force and the second driving force can be provided to drive the first valve core 4 to reciprocate in the main channel 31 , thereby realizing remote control of the first valve core 4 and improving the convenience of operation.

[0061] Alternatively, if Figure 5 As shown, the first coil 71 is arranged close to the first core 41 , and the second coil 72 is arranged close to the third core 43 .

[0062] Therefore, when the first coil 71 is energized, the first valve core 4 moves away from the first coil 71, and the valve body 3 switches to the first intake mode. When the second coil 72 is energized, the first valve core 4 moves away from the second coil 72, and the valve body 3 switches to the second intake mode.

[0063] As an example, when the cylinder control system 100 controls the piston rod 12 to extend, it is necessary to control the first coil 71 to be energized so that the valve body 3 switches to the first air intake mode, and at the same time control the control coil 61 to be energized for a preset time so that the air inlet 33 is blocked for a preset time, and then control the control coil 61 to lose power so that the air inlet 33 opens.

[0064] When the cylinder control system 100 controls the piston rod 12 to retract, it is necessary to control the second coil 72 to be energized so that the valve body 3 switches to the second air intake mode. At the same time, it controls the control coil 61 to be energized for a preset time so that the air inlet 33 is blocked for a preset time. Then, the control coil 61 is controlled to lose power so that the air inlet 33 is opened.

[0065] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A cylinder control system (100), characterized in that: include: A cylinder (10), the cylinder (10) comprising a cylinder body (11) and a piston (121), the cylinder body (11) having an inner cavity, the piston (121) being movably disposed in the inner cavity and dividing the inner cavity into a first cavity (111) and a second cavity (112); A solenoid valve (20), the solenoid valve (20) comprising a valve body (3), a first valve core (4) and a second valve core (5); the valve body (3) having a main channel (31) and an air inlet (33), a first exhaust port (32), a second exhaust port (34), a first connecting port (35) and a second connecting port (36) all of which are connected to the main channel (31); the first connecting port (35) is connected to the first cavity (111); the second connecting port (36) is connected to the second cavity (112); the second valve core (5) is arranged at the air inlet (33) and is slidably connected to the valve body (3) to block or open the air inlet (33); the first valve core (4) is slidably arranged at the main channel (31) to enable the valve body (3) to switch between a first air inlet mode for controlling gas to enter the first cavity (111) and a second air inlet mode for controlling gas to enter the second cavity (112).

2. The cylinder control system (100) according to claim 1, characterized in that: An air intake channel (37) is provided between the air intake port (33) and the main channel (31), the valve body (3) has a control channel (38), and the control channel (38) and the air intake channel (37) are arranged to intersect and form an intersection section; The second valve core (5) comprises a blocking section (51), and the blocking section (51) is slidably arranged in the control channel (38). When the blocking section (51) slides to the intersection section, the air inlet channel (37) is blocked.

3. The cylinder control system (100) according to claim 2, characterized in that: The second valve core (5) further comprises a rod section (52), the cross section of the rod section (52) being smaller than the cross section of the blocking section (51), and when the rod section (52) slides to the intersection section, the air inlet passage (37) is opened.

4. The cylinder control system (100) according to claim 2, characterized in that: The control passage (38) intersects the air intake passage (37) perpendicularly.

5. The cylinder control system (100) according to claim 2, characterized in that: The cross section of the control passage (38) is the same as the cross section of the intake passage (37).

6. The cylinder control system (100) according to claim 2, characterized in that: The solenoid valve (20) further comprises a control coil (61) and a spring (62), wherein the control coil (61) and the spring (62) are both connected to the valve body (3) and are respectively arranged at two ends of the second valve core (5), wherein the control coil (61) is energized to apply a first force to the second valve core (5), and the spring (62) is energized to apply a second force to the second valve core (5), and the directions of the first force and the second force are opposite.

7. The cylinder control system (100) according to any one of claims 1 to 6, characterized in that: The first valve core (4) comprises a first core body (41), a second core body (42) and a third core body (43) which are sequentially arranged along the extension direction of the main channel (31); the first core body (41), the second core body (42) and the side wall of the main channel (31) form a first communication section; the second core body (42), the third core body (43) and the side wall of the main channel (31) form a second communication section; In the first air intake mode, the first communication port (35), the first communication section and the air intake port (33) form a first air intake path, and the second communication port (36), the second communication section and the second air exhaust port (34) form a first air exhaust path; In the second air intake mode, the second communication port (36), the second communication section and the air intake port (33) form a second air intake path, and the first communication port (35), the first communication section and the first exhaust port (32) form a second exhaust path.

8. The cylinder control system (100) according to claim 7, characterized in that: The second valve core (5) further comprises a main rod (44), and the first core body (41), the second core body (42) and the third core body (43) are all connected to the main rod (44).

9. The cylinder control system (100) according to claim 8, characterized in that: The solenoid valve (20) further comprises a first coil (71) and a second coil (72), wherein the first coil (71) and the second coil (72) are arranged at two ends of the main rod (44) in a relative manner, and the first coil (71) is used to apply a first driving force to the main rod (44) when the first coil (71) is energized, and the second coil (72) is used to apply a second driving force to the main rod (44) when the second coil (72) is energized, and the directions of the first driving force and the second driving force are opposite.

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