An efficient cylinder

Abstract

The present invention provides an efficient cylinder, comprising a cylinder block and a piston rod; a low-pressure chamber, a high-pressure chamber and an auxiliary chamber are arranged inside the cylinder block, a sliding hole is formed in the front side of the cylinder block, and a high-pressure air inlet is formed in the rear side of the cylinder block; the piston rod is slidably connected to the sliding hole, a low-pressure piston is arranged in the low-pressure chamber, a high-pressure piston is arranged in the high-pressure chamber, and a blow molding hole is formed in the center of the piston rod; a low-pressure air inlet passage is arranged in the cylinder block, a connection port is arranged through the piston rod, and a control switch is arranged at a position of the connection port close to the blow molding hole; a reset mechanism is arranged in the auxiliary chamber, and the reset mechanism is connected to the high-pressure piston. During use, part of the high-pressure air enters the blow molding hole to blow the preform into shape, and part of the high-pressure air enters the high-pressure chamber to apply a thrust to the high-pressure piston to increase the sealing pressure of the cylinder, so that the piston rod of the cylinder is not easily disengaged from the preform, and the blow molding efficiency of the preform is not easily affected.

Description

Technical Field

[0001] The present invention relates to a cylinder for a blow molding machine, and in particular, to an efficient cylinder. Background Art

[0002] Currently, a Chinese patent with the publication number CN102211397B discloses a blowing device for a blow molding machine, which includes a fixing plate, a blowing needle arranged above the fixing plate, and an oil cylinder arranged below the fixing plate. An air inlet is arranged on the side wall of the blowing needle, and the air inlet is connected to an external air source through an air pipe. An air outlet is arranged at the upper end of the blowing needle, and the air outlet is communicated with the air inlet. The movable rod of the oil cylinder is connected to the fixing plate to drive the fixing plate to move up and down.

[0003] When it is necessary to blow a preform, the fixing plate is driven by the oil cylinder to approach the mold, so that the blowing needle extends into the preform. Then, compressed air is supplied by an external air source, and the compressed air flows through the air inlet and the air outlet and finally enters the inside of the preform.

[0004] However, in order to successfully blow the preform into shape, the external air source needs to provide compressed air with a relatively high pressure. During the process of blowing the preform with compressed air of relatively high pressure, since the sealing pressure of the oil cylinder is relatively low, the blowing needle is likely to withdraw from the mold under the action of the compressed air, seriously affecting the blowing efficiency of the preform. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an efficient cylinder, which has the advantages of high sealing pressure and is not likely to affect the blowing efficiency of the preform.

[0006] To solve the above technical problems, the technical solution of the present invention is: an efficient cylinder, including a cylinder body and a piston rod; a low-pressure chamber and a high-pressure chamber are arranged side by side inside the cylinder body, an auxiliary chamber is arranged on the side of the high-pressure chamber away from the low-pressure chamber, a sliding hole is opened on the front side of the cylinder body, and the sliding hole communicates with the low-pressure chamber and the high-pressure chamber. A high-pressure air inlet is opened on the rear side of the cylinder body, and the high-pressure air inlet communicates with the auxiliary chamber, and the inner diameter of the high-pressure air inlet is smaller than the inner diameter of the sliding hole;

[0007] The piston rod is slidably connected to the sliding hole, a low-pressure piston is arranged in the low-pressure chamber, the low-pressure piston is fixedly connected to the piston rod, a high-pressure piston is arranged in the high-pressure chamber, the high-pressure piston is fixedly connected to the piston rod, and a blow molding hole is opened at the center of the piston rod, and the blow molding hole is used to communicate with the high-pressure air inlet;

[0008] A low-pressure intake passage is provided in the cylinder block. One end of the low-pressure intake passage communicates with the low-pressure chamber, and the other end of the low-pressure intake passage communicates with the sliding hole. A connection port is provided through the piston rod. When the piston rod is in the sliding hole, the connection port always communicates with the low-pressure intake passage. A control switch is provided near the blow molding hole. When the low-pressure piston abuts against the side wall of the low-pressure chamber away from the high-pressure air inlet, the control switch closes the connection port. On the contrary, the control switch cuts off the blow molding hole and controls the connection between the side of the blow molding hole near the high-pressure air inlet and the connection port;

[0009] A reset mechanism is provided in the auxiliary chamber. The reset mechanism is connected to the high-pressure piston to drive the high-pressure piston to abut against the inner wall of the high-pressure chamber near the high-pressure air inlet.

[0010] Through the above technical solution, when the above cylinder is not yet in use, the end of the piston rod extending into the cylinder block abuts against the inner cavity wall of the auxiliary chamber near the high-pressure air inlet. The blow molding hole communicates with the high-pressure air inlet. The control switch cuts off the blow molding hole and controls the connection between the side of the blow molding hole near the high-pressure air inlet and the connection port.

[0011] When it is necessary to control the piston rod of the above cylinder to extend out of the cylinder block, high-pressure air is injected into the high-pressure air inlet through an external high-pressure air source. Initially, the high-pressure air flows through the blow molding hole and the connection port and finally enters the low-pressure chamber to push the low-pressure piston away from the high-pressure chamber side. The low-pressure piston drives the piston rod to extend out of the cylinder block during the movement. The piston rod drives the high-pressure piston to move towards the low-pressure chamber side during the process of extending out of the cylinder block. When the piston rod separates from the inner cavity wall of the auxiliary chamber, part of the high-pressure air can enter the auxiliary chamber to drive the high-pressure piston to move, making the process of the piston rod extending out more efficient.

[0012] When the low-pressure piston abuts against the inner cavity wall of the low-pressure chamber away from the high-pressure chamber, the high-pressure piston abuts against the inner cavity wall of the high-pressure chamber near the low-pressure chamber, and the piston rod has extended to the limit position. At this time, the control switch controls the connection port to close and simultaneously controls the blow molding hole to open. In this way, part of the high-pressure air enters the blow molding hole to blow the preform into shape, and part of the high-pressure air enters the high-pressure chamber to apply a thrust to the high-pressure piston to increase the sealing pressure of the cylinder, making it difficult for the piston rod of the cylinder to come out of the preform and making it difficult for the blowing efficiency of the preform to be affected.

[0013] When it is necessary to control the piston rod of the above cylinder to retract into the cylinder block, only the external high-pressure air source needs to be closed. At this time, the reset mechanism can pull the high-pressure piston to make the high-pressure piston away from the low-pressure chamber side. The high-pressure piston drives the piston rod to retract into the cylinder block during the movement. The piston rod drives the low-pressure piston to approach the high-pressure chamber side during the process of retracting into the cylinder block.

[0014] Preferably, the reset mechanism includes a plurality of reset springs which are evenly distributed along the circumferential direction of the piston rod. One end of each reset spring is fixedly connected to the high-pressure piston, and the other end of each reset spring is fixedly connected to the cylinder block.

[0015] Through the above technical solution, the plurality of reset springs can drive the high-pressure piston to reset more quickly and smoothly.

[0016] Preferably, the control switch includes a rotating plate, a response block and a trigger member;

[0017] The rotating plate includes a low-pressure shielding portion, a rotary connection portion and a high-pressure shielding portion which are connected in sequence. The low-pressure shielding portion is located in the low-pressure air inlet passage, and rotating the low-pressure shielding portion is used to control the opening and closing of the low-pressure air inlet passage. The rotary connection portion is rotatably connected to the connection between the connection port and the blow molding hole. The high-pressure shielding portion is located in the blow molding hole, and rotating the high-pressure shielding portion is used to control the opening and closing of the blow molding hole;

[0018] A sliding groove is formed in the inner hole wall of the blow molding hole and is close to the connection port. The response block is slidably connected to the sliding groove. When the high-pressure shielding portion controls the blow molding hole to be blocked, the response block protrudes from the sliding groove and abuts against the high-pressure shielding portion to support the high-pressure shielding portion;

[0019] One end of the trigger member penetrates through the outer wall of the piston rod, and the other end of the trigger member is connected to the response block. When the low-pressure piston abuts against the inner cavity wall of the low-pressure chamber facing away from the high-pressure chamber, the trigger member pulls the response block into the sliding groove. Otherwise, the trigger member pushes the response block out of the sliding groove.

[0020] Through the above technical solution, when the low-pressure piston has not abutted against the inner cavity wall of the low-pressure chamber facing away from the high-pressure chamber, the trigger member pushes the response block out of the sliding groove and abuts against the side wall of the high-pressure shielding portion away from the high-pressure air inlet to limit the high-pressure shielding portion, so as to ensure that the high-pressure shielding portion can effectively block the blow molding hole. When the low-pressure piston abuts against the inner wall of the low-pressure chamber facing away from the high-pressure chamber, the trigger member pulls the response block into the sliding groove, and the rotary connection portion rotates around the rotation axis until the low-pressure shielding portion covers the connection port and the high-pressure shielding portion abuts against the inner hole wall of the blow molding hole.

[0021] Preferably, an activity groove is axially formed in the outer wall of the piston rod, a connection channel is arranged in the piston rod, one end of the connection channel communicates with the end of the activity groove close to the high-pressure chamber, and the other end of the connection channel communicates with the sliding groove;

[0022] The triggering member includes a triggering block, a connecting rope, and a thrust spring. The triggering block is slidably connected to the movable groove. A receiving groove for placing the triggering block is formed in the end face of the low-pressure piston facing away from the high-pressure chamber. The connecting rope is disposed in the connecting channel. One end of the connecting rope is connected to the triggering block, and the other end of the connecting rope is connected to the response block. The thrust spring is disposed in the sliding groove. One end of the thrust spring is fixedly connected to the inner groove wall of the sliding groove, and the other end of the thrust spring is fixedly connected to the response block.

[0023] Through the above technical solution, during the process of the low-pressure piston moving away from the high-pressure chamber, the triggering block gradually approaches the receiving groove. When the triggering block is received inside the receiving groove, the low-pressure piston can drive the triggering block to move in the movable groove. At the same time, the triggering block can drive the response block through the connecting rope, so that the response block is received in the sliding groove. During the process of the low-pressure piston moving towards the high-pressure chamber, the thrust spring pushes the response block out of the sliding groove through the elastic force, and the response block pushes the high-pressure shielding portion, causing the rotating plate to rotate. At the same time, the pushing block pulls the triggering block through the connecting rope, so that the triggering block can still be received in the receiving groove. When the response block moves to the limit position, the triggering block begins to separate from the low-pressure piston.

[0024] Preferably, the piston rod includes two rod bodies fixed by welding. The movable groove, the connecting channel, and the sliding groove are all enclosed by the two rod bodies.

[0025] Through the above technical solution, the piston rod is formed by welding two rod bodies, and the movable groove, the connecting channel, and the sliding groove are all enclosed by the two rod bodies, making the processing process of the movable groove, the connecting groove, and the sliding groove more convenient and fast.

[0026] Preferably, the cylinder block includes a front cover, an aluminum outer sleeve, a middle seat, a steel outer sleeve, and a rear cover connected in sequence. The low-pressure chamber is enclosed by the front cover, the aluminum outer sleeve, and the middle seat. The high-pressure chamber is enclosed by the middle seat, the steel outer sleeve, and the rear cover.

[0027] Through the above technical solution, compared with the steel outer sleeve, the aluminum outer sleeve has the advantage of lower cost, which can reduce the production cost of the cylinder to a certain extent. Compared with the aluminum outer sleeve, the steel outer sleeve has the advantage of higher structural strength and is not easily deformed or damaged in a high-pressure environment, which helps to ensure the service life of the cylinder.

[0028] Preferably, a first connecting protrusion is provided on the rear side of the front cover, and a second connecting protrusion is provided on the front side of the middle seat. The two ends of the aluminum outer sleeve are respectively sleeved on the first connecting protrusion and the second connecting protrusion.

[0029] Through the above technical solution, both ends of the aluminum outer sleeve are respectively sleeved on the first connecting protrusion and the second connecting protrusion, making the connection process between the aluminum outer sleeve and the front cover and the middle seat more convenient.

[0030] Preferably, a third connecting protrusion is provided on the rear side of the middle seat, and a fourth connecting protrusion is provided on the front side of the rear cover. Both ends of the steel outer sleeve are respectively sleeved on the third connecting protrusion and the fourth connecting protrusion.

[0031] Through the above technical solution, both ends of the steel outer sleeve are respectively sleeved on the third connecting protrusion and the fourth connecting protrusion, making the connection process between the steel outer sleeve and the middle seat and the rear cover more convenient.

[0032] Preferably, a rubber anti-collision ring is provided on the front inner wall of the low-pressure chamber.

[0033] Through the above technical solution, the rubber anti-collision ring can protect the low-pressure piston when it touches the low-pressure piston, making the low-pressure piston not easily damaged. Description of the Drawings

[0034] Figure 1 is a schematic structural diagram of the embodiment;

[0035] Figure 2 is a schematic cross-sectional view of the embodiment;

[0036] Figure 3 is Figure 2 an enlarged view of part A of

[0037] Figure 4 is Figure 2 an enlarged view of part B of

[0038] Reference numerals: 1, low-pressure chamber; 2, high-pressure chamber; 3, auxiliary chamber; 4, cylinder block; 41, front cover; 42, aluminum outer sleeve; 43, middle seat; 44, steel outer sleeve; 45, rear cover; 5, piston rod; 6, sliding hole; 7, high-pressure air inlet; 8, low-pressure piston; 9, high-pressure piston; 10, blow molding hole; 11, low-pressure air inlet passage; 12, connection port; 13, control switch; 131, rotating plate; 1311, low-pressure shielding part; 1312, rotary connection part; 1313, high-pressure shielding part; 132, response block; 133, triggering part; 1331, triggering block; 1332, connecting rope; 1333, thrust spring; 14, reset mechanism; 15, sliding groove; 16, moving groove; 17, connection channel; 18, first connecting protrusion; 19, second connecting protrusion; 20, third connecting protrusion; 21, fourth connecting protrusion; 22, rubber anti-collision ring. Detailed Description of the Invention

[0039] The following further details the specific embodiments of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and master.

[0040] An efficient cylinder, as Figures 1 to 4 shown, includes a cylinder block 4 and a piston rod 5.

[0041] Inside the cylinder block 4, a low-pressure chamber 1 and a high-pressure chamber 2 are arranged side by side, and an auxiliary chamber 3 is arranged on the side of the high-pressure chamber 2 away from the low-pressure chamber 1. The cylinder block 4 includes a front cover 41, an aluminum outer sleeve 42, a middle seat 43, a steel outer sleeve 44, and a rear cover 45 connected in sequence. The low-pressure chamber 1 is enclosed by the front cover 41, the aluminum outer sleeve 42, and the middle seat 43, and the high-pressure chamber 2 and the auxiliary chamber 3 are enclosed by the middle seat 43, the steel outer sleeve 44, and the rear cover 45.

[0042] On the rear side of the front cover 41, there is a connecting protrusion one 18, and on the front side of the middle seat 43, there is a connecting protrusion two 19. Both ends of the aluminum outer sleeve 42 are sleeved on the connecting protrusion one 18 and the connecting protrusion two 19 respectively. On the rear side of the front cover 41, there is a rubber anti-collision ring 22. On the rear side of the middle seat 43, there is a connecting protrusion three 20, and on the front side of the rear cover 45, there is a connecting protrusion four 21. Both ends of the steel outer sleeve 44 are sleeved on the connecting protrusion three 20 and the connecting protrusion four 21 respectively.

[0043] A sliding hole 6 is opened on the front cover 41, and the sliding hole 6 penetrates through the middle seat 43 to communicate the low-pressure chamber 1 and the high-pressure chamber 2. A high-pressure air inlet 7 is opened on the rear cover 45, and the high-pressure air inlet 7 communicates with the auxiliary chamber 3, and the inner diameter of the high-pressure air inlet 7 is smaller than the inner diameter of the sliding hole 6.

[0044] The piston rod 5 is slidably connected to the sliding hole 6. A low-pressure piston 8 is arranged in the low-pressure chamber 1, and the low-pressure piston 8 is fixedly connected to the piston rod 5. A high-pressure piston 9 is arranged in the high-pressure chamber 2, and the high-pressure piston 9 is fixedly connected to the piston rod 5. A blow molding hole 10 is opened at the center of the piston rod 5, and the blow molding hole 10 is used to communicate with the high-pressure air inlet 7.

[0045] A reset mechanism 14 is arranged in the auxiliary chamber 3. The reset mechanism 14 is connected to the high-pressure piston 9 to drive the high-pressure piston 9 to abut against the inner wall of the high-pressure chamber 2 close to the high-pressure air inlet 7. The reset mechanism 14 includes a plurality of reset springs. The plurality of reset springs are evenly distributed along the circumferential direction of the piston rod 5. One end of the reset spring is fixedly connected to the high-pressure piston 9, and the other end of the reset spring is fixedly connected to the cylinder block 4.

[0046] A low-pressure air inlet passage 11 is provided in the middle seat 43. One end of the low-pressure air inlet passage 11 communicates with the low-pressure chamber 1, and the other end of the low-pressure air inlet passage 11 communicates with the sliding hole 6. A connection port 12 is provided through the piston rod 5. When the piston rod 5 is in the sliding hole 6, the connection port 12 always communicates with the low-pressure air inlet passage 11. A control switch 13 is provided near the blow molding hole 10. When the low-pressure piston 8 abuts against the side wall of the low-pressure chamber 1 away from the high-pressure air inlet 7, the control switch 13 closes the connection port 12. Conversely, the control switch 13 cuts off the blow molding hole 10 and controls the side of the blow molding hole 10 near the high-pressure air inlet 7 to communicate with the connection port 12.

[0047] The control switch 13 includes a rotating plate 131, a response block 132, and a trigger 133.

[0048] The rotating plate 131 includes a low-pressure shielding portion 1311, a rotary connection portion 1312, and a high-pressure shielding portion 1313 connected in sequence. The low-pressure shielding portion 1311 is located in the low-pressure air inlet passage 11, and rotating the low-pressure shielding portion 1311 is used to control the opening and closing of the low-pressure air inlet passage 11. The rotary connection portion 1312 is rotatably connected to the connection between the connection port 12 and the blow molding hole 10. The high-pressure shielding portion 1313 is located in the blow molding hole 10, and rotating the high-pressure shielding portion 1313 is used to control the opening and closing of the blow molding hole 10.

[0049] A sliding groove 15 is formed in the inner hole wall of the blow molding hole 10. The sliding groove 15 is close to the connection port 12, and the response block 132 is slidably connected to the sliding groove 15. When the high-pressure shielding portion 1313 controls the blow molding hole 10 to be cut off, the response block 132 protrudes from the sliding groove 15 and abuts against the high-pressure shielding portion 1313 to support the high-pressure shielding portion 1313.

[0050] One end of the trigger 133 penetrates through the outer wall of the piston rod 5, and the other end of the trigger 133 is connected to the response block 132. When the low-pressure piston 8 abuts against the inner wall of the low-pressure chamber 1 away from the high-pressure chamber 2, the trigger 133 pulls the response block 132 into the sliding groove 15. Conversely, the trigger 133 pushes the response block 132 out of the sliding groove 15.

[0051] An activity groove 16 is axially formed on the outer wall of the piston rod 5. A connection channel 17 is provided in the piston rod 5. One end of the connection channel 17 communicates with the end of the activity groove 16 close to the high-pressure chamber 2, and the other end of the connection channel 17 communicates with the sliding groove 15. The trigger member 133 includes a trigger block 1331, a connection rope 1332 and a thrust spring 1333. The trigger block 1331 is slidably connected to the activity groove 16. A storage groove for placing the trigger block 1331 is formed on the end face of the low-pressure piston 8 facing away from the high-pressure chamber 2. The connection rope 1332 is disposed in the connection channel 17. One end of the connection rope 1332 is connected to the trigger block 1331, and the other end of the connection rope 1332 is connected to the response block 132. The thrust spring 1333 is disposed in the sliding groove 15. One end of the thrust spring 1333 is fixedly connected to the inner groove wall of the sliding groove 15, and the other end of the thrust spring 1333 is fixedly connected to the response block 132.

[0052] The piston rod 5 includes two rod bodies fixed by welding. The activity groove 16, the connection channel 17 and the sliding groove 15 are all enclosed by the two rod bodies.

[0053] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementation manners. Any technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. An efficient cylinder, comprising a cylinder block (4) and a piston rod (5); characterized in that: Inside the cylinder block (4), a low-pressure chamber (1) and a high-pressure chamber (2) are arranged side by side. An auxiliary chamber (3) is arranged on the side of the high-pressure chamber (2) away from the low-pressure chamber (1). A sliding hole (6) is formed in the front side of the cylinder block (4), and the sliding hole (6) communicates with the low-pressure chamber (1) and the high-pressure chamber (2). A high-pressure air inlet (7) is formed in the rear side of the cylinder block (4), and the high-pressure air inlet (7) communicates with the auxiliary chamber (3), and the inner diameter of the high-pressure air inlet (7) is smaller than the inner diameter of the sliding hole (6). The piston rod (5) is slidably connected to the sliding hole (6). A low-pressure piston (8) is arranged in the low-pressure chamber (1), and the low-pressure piston (8) is fixedly connected to the piston rod (5). A high-pressure piston (9) is arranged in the high-pressure chamber (2), and the high-pressure piston (9) is fixedly connected to the piston rod (5). A blow molding hole (10) is formed at the center of the piston rod (5), and the blow molding hole (10) is used to communicate with the high-pressure air inlet (7). A low-pressure air inlet passage (11) is arranged in the cylinder block (4). One end of the low-pressure air inlet passage (11) communicates with the low-pressure chamber (1), and the other end of the low-pressure air inlet passage (11) communicates with the sliding hole (6). A connection port (12) is arranged through the piston rod (5). When the piston rod (5) is in the sliding hole (6), the connection port (12) always communicates with the low-pressure air inlet passage (11). A control switch (13) is arranged near the blow molding hole (10) of the connection port (12). When the low-pressure piston (8) abuts against the side wall of the low-pressure chamber (1) away from the high-pressure air inlet (7), the control switch (13) closes the connection port (12). On the contrary, the control switch (13) cuts off the blow molding hole (10) and controls the communication between the side of the blow molding hole (10) close to the high-pressure air inlet (7) and the connection port (12). A reset mechanism (14) is arranged in the auxiliary chamber (3), and the reset mechanism (14) is connected to the high-pressure piston (9) to drive the high-pressure piston (9) to abut against the inner wall of the high-pressure chamber (2) close to the high-pressure air inlet (7).

2. An efficient cylinder according to claim 1, characterized in that: The reset mechanism (14) includes a plurality of reset springs. The plurality of reset springs are evenly distributed along the circumferential direction of the piston rod (5). One end of the reset spring is fixedly connected to the high-pressure piston (9), and the other end of the reset spring is fixedly connected to the cylinder block (4).

3. An efficient cylinder according to claim 1, characterized in that: The control switch (13) includes a rotating plate (131), a response block (132) and a trigger member (133). The rotating plate (131) includes a low-pressure shielding part (1311), a rotating connection part (1312), and a high-pressure shielding part (1313) connected in sequence. The low-pressure shielding part (1311) is located in the low-pressure air inlet channel (11), and rotating the low-pressure shielding part (1311) is used to control the opening and closing of the low-pressure air inlet channel (11). The rotating connection part (1312) is rotatably connected to the connection between the connection port (12) and the blow molding hole (10). The high-pressure shielding part (1313) is located in the blow molding hole (10), and rotating the high-pressure shielding part (1313) is used to control the opening and closing of the blow molding hole (10). A sliding groove (15) is formed in the inner hole wall of the blow molding hole (10). The sliding groove (15) is close to the connection port (12). The response block (132) is slidably connected to the sliding groove (15). When the high-pressure shielding part (1313) controls the blow molding hole (10) to be blocked, the response block (132) protrudes from the sliding groove (15) and abuts against the high-pressure shielding part (1313) to support the high-pressure shielding part (1313). One end of the trigger member (133) penetrates through the outer wall of the piston rod (5), and the other end of the trigger member (133) is connected to the response block (132). When the low-pressure piston (8) abuts against the inner cavity wall of the low-pressure chamber (1) away from the high-pressure chamber (2), the trigger member (133) pulls the response block (132) into the sliding groove (15). Otherwise, the trigger member (133) pushes the response block (132) out of the sliding groove (15).

4. The high-efficiency cylinder according to claim 3 is characterized in that: An activity groove (16) is axially formed in the outer wall of the piston rod (5). A connection channel (17) is arranged in the piston rod (5). One end of the connection channel (17) communicates with the end of the activity groove (16) close to the high-pressure chamber (2), and the other end of the connection channel (17) communicates with the sliding groove (15). The trigger member (133) includes a trigger block (1331), a connection rope (1332), and a thrust spring (1333). The trigger block (1331) is slidably connected to the activity groove (16). A storage groove for the trigger block (1331) to be placed is formed in the end face of the low-pressure piston (8) away from the high-pressure chamber (2). The connection rope (1332) is arranged in the connection channel (17). One end of the connection rope (1332) is connected to the trigger block (1331), and the other end of the connection rope (1332) is connected to the response block (132). The thrust spring (1333) is arranged in the sliding groove (15). One end of the thrust spring (1333) is fixedly connected to the inner groove wall of the sliding groove (15), and the other end of the thrust spring (1333) is fixedly connected to the response block (132).

5. The high-efficiency cylinder according to claim 4, characterized in that: The piston rod (5) includes two rod bodies fixed by welding, and the moving groove (16), the connecting channel (17) and the sliding groove (15) are all formed by enclosing the two rod bodies.

6. The high-efficiency cylinder according to claim 1, wherein: The cylinder block (4) includes a front cover (41), an aluminum outer sleeve (42), a middle seat (43), a steel outer sleeve (44) and a rear cover (45) connected in sequence. The low-pressure chamber (1) is formed by enclosing the front cover (41), the aluminum outer sleeve (42) and the middle seat (43), and the high-pressure chamber (2) is formed by enclosing the middle seat (43), the steel outer sleeve (44) and the rear cover (45).

7. An efficient cylinder according to claim 6, wherein: A first connecting protrusion (18) is provided on the rear side of the front cover (41), a second connecting protrusion (19) is provided on the front side of the middle seat (43), and both ends of the aluminum outer sleeve (42) are respectively sleeved on the first connecting protrusion (18) and the second connecting protrusion (19).

8. The high-efficiency cylinder according to claim 6, characterized in that: A third connecting protrusion (20) is provided on the rear side of the middle seat (43), a fourth connecting protrusion (21) is provided on the front side of the rear cover (45), and both ends of the steel outer sleeve (44) are respectively sleeved on the third connecting protrusion (20) and the fourth connecting protrusion (21).

9. An efficient cylinder according to claim 1, characterized in that: A rubber anti-collision ring (22) is provided on the inner wall of the front side of the low-pressure chamber (1).

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