Dovetail groove type sliding table air cylinder with anti-falling mechanism

Abstract

The invention provides a dovetail groove type sliding table air cylinder with an anti-falling mechanism, and relates to the technical field of mechanical devices, a first connecting seat is fixedly mounted at the bottom of a wedge block, a sliding rail is fixedly mounted on the side wall of an air cylinder body, the first connecting seat is slidably mounted in the air cylinder body, and a first connecting rod is rotatably mounted on the side wall of the first connecting seat; a second connecting base is rotatably installed at the end, away from the first connecting base, of a first connecting rod, an anti-falling sliding plate is rotatably installed in the second connecting base, gas is added into a gas cavity through a gas conveying groove, the gas pushes a pneumatic push plate to push the outside of the air cylinder body, and the pneumatic push plate drives a first sliding plate to push the outside of the air cylinder body. When the air cylinder body falls, air in the air cavity leaks out, the air cylinder body drives the first sliding plate to move from top to bottom, the first sliding plate is collected into the air cylinder body along the inclined face of the wedge-shaped block, the air cylinder body falls to the top of the anti-falling sliding plate, and therefore the function of preventing the air cylinder body from falling is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical devices, and more specifically, particularly relates to a dovetail groove type slide cylinder with an anti-falling mechanism. Background Art

[0002] In the field of modern industrial automation, cylinders are widely used in various mechanical equipment as important actuators. Dovetail slide cylinders play a key role in many scenarios that require precise displacement control due to their high-precision linear motion guiding performance.

[0003] In actual applications, cylinders have certain safety hazards. In certain emergencies, such as sudden interruption of the gas source, damage to cylinder components, or mechanical failure, the cylinder may lose its supporting force and fall, which will not only cause damage to the equipment, but may also endanger the safety of the operator and affect production efficiency and product quality.

[0004] In view of the existing structure and defects, improvements are made to provide a dovetail groove slide cylinder with an anti-fall mechanism. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a dovetail type slide cylinder with an anti-fall mechanism to solve the above problems.

[0006] The anti-falling sliding plate is rotatably mounted on the side wall of the first sliding plate, and the anti-falling sliding plate is rotatably mounted on the side wall of the first sliding plate.

[0007] Preferably, a concave connecting plate is fixedly mounted on the top of the cylinder body, and a dovetail groove type slide body is slidably mounted on the side wall of the cylinder body.

[0008] Preferably, a connecting plate is fixedly installed on the side wall of the dovetail groove slide body, and a slide rail rod is fixedly installed on the bottom of the concave connecting plate.

[0009] Preferably, the slide rail rod is slidably installed inside the connecting plate, and a first cylindrical coil spring is fixedly installed at the bottom of the concave connecting plate.

[0010] Preferably, one end of the first cylindrical coil spring away from the concave connecting plate is fixedly mounted to the connecting plate, and the first cylindrical coil spring is sleeved inside the slide rail rod.

[0011] Preferably, a linear slide block is fixedly mounted on the side wall of the cylinder body, and the anti-fall sliding plate is slidably mounted inside the linear slide block.

[0012] Preferably, a first damping rod is fixedly mounted on the bottom of the cylinder body, and a connecting base plate is fixedly mounted on the side wall of the first damping rod.

[0013] Preferably, a second connecting rod is rotatably mounted inside the connecting base plate, and a third connecting seat is rotatably mounted on a side wall of the second connecting rod.

[0014] Preferably, a second cylindrical coil spring rod is fixedly mounted on the side wall of the third connecting seat, a U-shaped connecting frame is slidably mounted on the side wall of the third connecting seat, the U-shaped connecting frame is fixedly mounted on the second cylindrical coil spring rod, and a fixed base is fixedly mounted on the bottom of the U-shaped connecting frame.

[0015] Preferably, a rubber buffer gasket is fixedly installed on the top of the fixed base, an air pipe is fixedly installed on the side wall of the cylinder body, a first clamping block is fixedly installed on the side wall of the air pipe, a clamping ring is fixedly installed on the side wall of the air pipe, a connecting pipe is fixedly installed inside the air pipe, and a sealed gasket is fixedly installed on the side wall of the connecting pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, an anti-falling sliding plate is provided. When gas is added inside the cylinder body, the cylinder body pushes the pneumatic rod out of the cylinder body, and the cylinder body moves from bottom to top inside the dovetail groove slide body. The cylinder body drives the first sliding plate to move from bottom to top, and the first sliding plate drives the first connecting rod to flip from both sides to the middle. The first connecting rod drives the second connecting seat to move from both sides to the middle. The second connecting seat drives the anti-falling sliding plate to slide along the inside of the linear slide slider. The linear slide slider moves to the bottom of the cylinder body, and the gas is transmitted through the gas transmission The groove is added to the air cavity, and the gas will push the pneumatic push plate toward the outside of the cylinder body, and the pneumatic push plate drives the first sliding plate to push toward the outside of the cylinder body. At this time, if the pressure above the cylinder body is too large, the gas inside the air cavity will leak out, and the cylinder body will drive the first sliding plate to move from top to bottom, and the first sliding plate will be retracted into the cylinder body along the inclined surface of the wedge block. At this time, the cylinder body will quickly move from top to bottom along the dovetail groove slide body, and the cylinder body will fall to the top of the anti-fall sliding plate, thereby preventing the cylinder body from falling.

[0017] In the present invention, by providing a first clamping block, when the gas pipes are connected, the two gas pipes are aligned with each other, the connecting pipe is inserted into the gas pipes, and then one of the gas pipes is rotated counterclockwise, and the gas pipe drives the first clamping block to rotate counterclockwise. The first clamping block slides along the inclined surface of the clamping ring at the beginning, and when rotated ninety degrees, the two gas pipes will fit tightly together. At this time, the sealed gasket will be squeezed by force to fill the gap between the two gas pipes, thereby achieving the function of quickly installing the gas pipes.

[0018] In the present invention, by providing a slide rail rod, the cylinder body drives the concave connecting plate to move from top to bottom, and the concave connecting plate drives the slide rail rod to move from top to bottom, and the slide rail rod slides inside the connecting plate. At this time, the first cylindrical coil spring will be compressed by the concave connecting plate and the connecting plate, and the connecting plate will buffer the cylinder body to prevent the cylinder body from falling quickly and causing damage to the cylinder body.

[0019] In the present invention, by providing a first damping rod, the first damping rod will slowly contract. When the first damping rod contracts, the first damping rod drives the connecting base plate to move from top to bottom, the connecting base plate drives the second connecting rod to move from the middle to both sides, the second connecting rod drives the third connecting seat to move from the middle to both sides, the third connecting seat causes the second cylindrical coil spring rod to contract under force, the second cylindrical coil spring rod will be restricted by the U-shaped connecting frame, the second cylindrical coil spring rod will provide resistance to slow down the contraction speed of the first damping rod again, greatly alleviating the impact force of the cylinder body falling, thereby achieving the function of quickly reducing the impact force.

[0020] In the present invention, when the anti-fall sliding plate cannot block the cylinder body, the cylinder body will impact the top of the rubber buffer gasket. The rubber buffer gasket can reduce the impact force because it has good elasticity and can undergo a large deformation when impacted, converting the impact energy into elastic potential energy to absorb and disperse the impact force. There is a large internal friction between its molecules, which will consume part of the energy during the impact, and can recover to its original state relatively quickly after the impact force disappears. It also has certain damping characteristics, which can convert the impact energy into heat energy and dissipate it, thereby reducing the transmission of the impact force, thereby minimizing the damage to the cylinder body to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the anti-falling sliding plate of the present invention; Figure 3 It is a schematic diagram of the structure of the rubber buffer gasket of the present invention; Figure 4 It is a schematic diagram of the structure of the dovetail groove slide body of the present invention; Figure 5is a schematic diagram of the first connecting rod structure of the present invention; Figure 6 It is a schematic diagram of the structure of the second connecting socket of the present invention; Figure 7 The present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 It is a schematic diagram of the gas transmission pipe structure of the present invention; Fig. 9 The present invention Figure 8 The enlarged structural diagram at B in the middle; Fig.10 It is a schematic diagram of the structure of the first card block of the present invention.

[0022] In the figure, the correspondence between the component names and the figure numbers is: 11, cylinder body; 12, air cavity; 13, air delivery groove; 14, first sliding plate; 15, pneumatic push plate; 16, wedge block; 17, first connecting seat; 18, sliding track; 19, first connecting rod; 21, second connecting seat; 22, anti-fall sliding plate; 23, concave connecting plate; 24, dovetail groove slide body; 25, connecting plate; 26, slide rail rod; 27, first cylindrical helical spring; 29, linear slide slider; 31, first damping rod; 32, connecting base plate; 33, second connecting rod; 34, third connecting seat; 35, second cylindrical helical spring rod; 36, U-shaped connecting frame; 37, fixed base; 38, rubber buffer gasket; 39, air delivery pipe; 41, first clamping block; 42, clamping missing ring; 43, connecting pipe; 44, sealed gasket. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] See also Figure 1-Figure 10The present invention provides a dovetail groove slide cylinder with an anti-fall mechanism, including a cylinder body 11, an anti-fall mechanism is arranged inside the cylinder body 11, and the anti-fall mechanism includes an air cavity 12, an air delivery groove 13, a first sliding plate 14, a pneumatic push plate 15, a wedge block 16, a first connecting seat 17, a sliding track 18, a first connecting rod 19, a second connecting seat 21 and an anti-fall sliding plate 22, the air cavity 12 is opened inside the cylinder body 11, the air delivery groove 13 is opened inside the cylinder body 11, the first sliding plate 14 is slidably installed inside the air cavity 12, and the pneumatic push plate 15 is fixedly installed on the first connecting seat 21. The side wall of the sliding plate 14, the pneumatic push plate 15 is slidably installed in the air cavity 12, the wedge block 16 is slidably installed at the bottom of the first sliding plate 14, the first connecting seat 17 is fixedly installed at the bottom of the wedge block 16, the sliding track 18 is fixedly installed on the side wall of the cylinder body 11, the first connecting seat 17 is slidably installed in the cylinder body 11, the first connecting rod 19 is rotatably installed on the side wall of the first connecting seat 17, the second connecting seat 21 is rotatably installed on the end of the first connecting rod 19 away from the first connecting seat 17, and the anti-fall sliding plate 22 is rotatably installed in the second connecting seat 21. When the cylinder body 11 is filled with gas, the gas The cylinder body 11 pushes the pneumatic rod out of the cylinder body 11, and the cylinder body 11 moves from bottom to top inside the dovetail groove slide body 24. The cylinder body 11 drives the first sliding plate 14 to move from bottom to top, and the first sliding plate 14 drives the first connecting rod 19 to flip from both sides to the middle, and the first connecting rod 19 drives the second connecting seat 21 to move from both sides to the middle, and the second connecting seat 21 drives the anti-fall sliding plate 22 to slide along the inside of the linear slide slider 29, and the linear slide slider 29 moves to the bottom of the cylinder body 11, and the gas is added to the air cavity 12 through the gas delivery groove 13, and the gas will push the gas The dynamic push plate 15 is pushed toward the outside of the cylinder body 11, and the pneumatic push plate 15 drives the first sliding plate 14 to push toward the outside of the cylinder body 11. At this time, if the pressure above the cylinder body 11 is too large, the gas inside the air cavity 12 will leak out, and the cylinder body 11 will drive the first sliding plate 14 to move from top to bottom. The first sliding plate 14 will be retracted into the cylinder body 11 along the inclined surface of the wedge block 16. At this time, the cylinder body 11 will quickly move from top to bottom along the dovetail groove slide body 24, and the cylinder body 11 will fall to the top of the anti-fall sliding plate 22, thereby achieving the function of preventing the cylinder body 11 from falling.

[0025] A concave connecting plate 23 is fixedly installed on the top of the cylinder body 11, a dovetail groove type slide body 24 is slidably installed on the side wall of the cylinder body 11, a connecting plate 25 is fixedly installed on the side wall of the dovetail groove type slide body 24, a slide rail rod 26 is fixedly installed on the bottom of the concave connecting plate 23, and the slide rail rod 26 is slidably installed inside the connecting plate 25. A first cylindrical coil spring 27 is fixedly installed on the bottom of the concave connecting plate 23, and one end of the first cylindrical coil spring 27 away from the concave connecting plate 23 is fixedly installed with the connecting plate 25. The first cylindrical coil spring 27 is sleeved inside the slide rail rod 26, the cylinder body 11 drives the concave connecting plate 23 to move from top to bottom, the concave connecting plate 23 drives the slide rail rod 26 to move from top to bottom, and the slide rail rod 26 slides inside the connecting plate 25. At this time, the first cylindrical coil spring 27 will be compressed by the concave connecting plate 23 and the connecting plate 25, and the connecting plate 25 will buffer the cylinder body 11 to prevent the cylinder body 11 from falling quickly and causing damage to the cylinder body 11.

[0026] A linear slide block 29 is fixedly installed on the side wall of the cylinder body 11, and the anti-fall sliding plate 22 is slidably installed inside the linear slide block 29. A first damping rod 31 is fixedly installed on the bottom of the cylinder body 11, and a connecting base plate 32 is fixedly installed on the side wall of the first damping rod 31. A second connecting rod 33 is rotatably installed inside the connecting base plate 32, and a third connecting seat 34 is rotatably installed on the side wall of the second connecting rod 33. A second cylindrical coil spring rod 35 is fixedly installed on the side wall of the third connecting seat 34, and a U-shaped connecting frame 36 is slidably installed on the side wall of the third connecting seat 34. The U-shaped connecting frame 36 is fixedly installed with the second cylindrical coil spring rod 35, and a fixed U-shaped connecting frame 36 is fixedly installed on the bottom The first damping rod 31 will slowly contract when the first damping rod 31 contracts, and the first damping rod 31 drives the connecting base plate 32 to move from top to bottom, and the connecting base plate 32 drives the second connecting rod 33 to move from the middle to both sides, and the second connecting rod 33 drives the third connecting seat 34 to move from the middle to both sides, and the third connecting seat 34 forces the second cylindrical coil spring rod 35 to contract, and the second cylindrical coil spring rod 35 will be restricted by the U-shaped connecting frame 36, and the second cylindrical coil spring rod 35 will provide resistance to slow down the contraction speed of the first damping rod 31 again, greatly alleviating the impact force of the cylinder body 11 falling, thereby achieving the function of quickly reducing the impact force.

[0027] A rubber buffer gasket 38 is fixedly installed on the top of the fixed base 37. When the anti-fall sliding plate 22 cannot block the cylinder body 11, the cylinder body 11 will impact the top of the rubber buffer gasket 38. The rubber buffer gasket 38 can reduce the impact force because it has good elasticity and can undergo a large deformation when impacted, converting the impact energy into elastic potential energy to absorb and disperse the impact force. There is a large internal friction between its molecules, which will consume part of the energy during impact, and can return to its original state relatively quickly after the impact force disappears. It also has certain damping characteristics, which can convert the impact energy into heat energy and dissipate it, thereby reducing the transmission of impact force, thereby minimizing the damage to the cylinder body 11 to the greatest extent.

[0028] An air pipe 39 is fixedly installed on the side wall of the cylinder body 11, a first clamping block 41 is fixedly installed on the side wall of the air pipe 39, a clamping ring 42 is fixedly installed on the side wall of the air pipe 39, a connecting pipe 43 is fixedly installed inside the air pipe 39, and a sealed gasket 44 is fixedly installed on the side wall of the connecting pipe 43. When the air pipes 39 are connected, the two air pipes 39 are aligned with each other, and the connecting pipe 43 will be inserted into the air pipes 39. At this time, one of the air pipes 39 is rotated counterclockwise, and the air pipe 39 drives the first clamping block 41 to rotate counterclockwise. The first clamping block 41 starts to slide along the inclined surface of the clamping ring 42. When rotated ninety degrees, the two air pipes 39 will fit tightly together. At this time, the sealed gasket 44 will be squeezed to fill the gap between the two air pipes 39, thereby achieving the function of quickly installing the air pipes 39.

[0029] Working principle: In the first step, when the cylinder body 11 is filled with gas, the cylinder body 11 pushes the pneumatic rod out of the cylinder body 11, and the cylinder body 11 moves from bottom to top inside the dovetail groove slide body 24. The cylinder body 11 drives the first sliding plate 14 to move from bottom to top, and the first sliding plate 14 drives the first connecting rod 19 to flip from both sides to the middle, and the first connecting rod 19 drives the second connecting seat 21 to move from both sides to the middle, and the second connecting seat 21 drives the anti-fall sliding plate 22 to slide along the inside of the linear slide slider 29, and the linear slide slider 29 moves to the bottom of the cylinder body 11, and the gas is added to the air cavity 12 through the gas delivery groove 13 Inside, the gas will push the pneumatic push plate 15 toward the outside of the cylinder body 11, and the pneumatic push plate 15 will drive the first sliding plate 14 to push toward the outside of the cylinder body 11. At this time, if the pressure above the cylinder body 11 is too large, the gas inside the air cavity 12 will leak out, and the cylinder body 11 will drive the first sliding plate 14 to move from top to bottom. The first sliding plate 14 will be retracted into the cylinder body 11 along the inclined surface of the wedge block 16. At this time, the cylinder body 11 will quickly move from top to bottom along the dovetail groove slide body 24, and the cylinder body 11 will fall to the top of the anti-fall sliding plate 22, thereby achieving the function of preventing the cylinder body 11 from falling.

[0030] In the second step, the cylinder body 11 drives the concave connecting plate 23 to move from top to bottom, and the concave connecting plate 23 drives the slide rail 26 to move from top to bottom. The slide rail 26 slides inside the connecting plate 25. At this time, the first cylindrical coil spring 27 will be compressed by the concave connecting plate 23 and the connecting plate 25, and the connecting plate 25 will buffer the cylinder body 11 to prevent the cylinder body 11 from falling quickly and causing damage to the cylinder body 11.

[0031] In the third step, the first damping rod 31 will slowly contract. The first damping rod 31 contracts, and the first damping rod 31 drives the connecting base plate 32 to move from top to bottom. The connecting base plate 32 drives the second connecting rod 33 to move from the middle to both sides. The second connecting rod 33 drives the third connecting seat 34 to move from the middle to both sides. The third connecting seat 34 forces the second cylindrical coil spring rod 35 to contract. The second cylindrical coil spring rod 35 will be restricted by the U-shaped connecting frame 36. The second cylindrical coil spring rod 35 will provide resistance to slow down the contraction speed of the first damping rod 31 again, greatly alleviating the impact force of the cylinder body 11 falling, thereby achieving the function of quickly reducing the impact force.

[0032] The fourth step is that when the anti-fall sliding plate 22 cannot block the cylinder body 11, the cylinder body 11 will impact the top of the rubber buffer gasket 38. The rubber buffer gasket 38 can reduce the impact force because it has good elasticity and can undergo a large deformation when impacted, converting the impact energy into elastic potential energy to absorb and disperse the impact force. There is a large internal friction between its molecules, which will consume part of the energy during the impact, and can return to its original state relatively quickly after the impact force disappears. It also has certain damping characteristics, which can convert the impact energy into heat energy and dissipate it, reducing the transmission of the impact force, thereby minimizing the damage to the cylinder body 11 to the greatest extent.

[0033] The fifth step, when connecting the gas pipes 39, align the two gas pipes 39 with each other, and insert the connecting pipe 43 into the gas pipes 39. At this time, rotate one of the gas pipes 39 counterclockwise, and the gas pipe 39 drives the first clamping block 41 to rotate counterclockwise. The first clamping block 41 starts to slide along the inclined surface of the clamping ring 42. When rotated ninety degrees, the two gas pipes 39 will fit tightly together. At this time, the sealed gasket 44 will be squeezed to fill the gap between the two gas pipes 39, thereby achieving the function of quickly installing the gas pipes 39.

[0034] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A dovetail groove slide cylinder with an anti-fall mechanism, comprising a cylinder body (11), characterized in that: The cylinder body (11) is provided with an anti-falling mechanism inside, and the anti-falling mechanism comprises an air cavity (12), an air delivery groove (13), a first sliding plate (14), a pneumatic push plate (15), a wedge block (16), a first connecting seat (17), a sliding track (18), a first connecting rod (19), a second connecting seat (21) and an anti-falling sliding plate (22), wherein the air cavity (12) is provided inside the cylinder body (11), the air delivery groove (13) is provided inside the cylinder body (11), the first sliding plate (14) is slidably mounted inside the air cavity (12), the pneumatic push plate (15) is fixedly mounted on the side wall of the first sliding plate (14), and the The pneumatic push plate (15) is slidably mounted inside the air cavity (12), the wedge block (16) is slidably mounted on the bottom of the first sliding plate (14), the first connecting seat (17) is fixedly mounted on the bottom of the wedge block (16), the sliding track (18) is fixedly mounted on the side wall of the cylinder body (11), the first connecting seat (17) is slidably mounted inside the cylinder body (11), the first connecting rod (19) is rotatably mounted on the side wall of the first connecting seat (17), the second connecting seat (21) is rotatably mounted on one end of the first connecting rod (19) away from the first connecting seat (17), and the anti-fall sliding plate (22) is rotatably mounted inside the second connecting seat (21).

2. A dovetail slide cylinder with an anti-fall mechanism as claimed in claim 1, characterized in that: A concave connecting plate (23) is fixedly mounted on the top of the cylinder body (11); Wherein, a dovetail groove type slide table body (24) is slidably mounted on the side wall of the cylinder body (11).

3. A dovetail slide cylinder with an anti-fall mechanism as claimed in claim 2, characterized in that: A connecting plate (25) is fixedly mounted on the side wall of the dovetail groove slide body (24); Wherein, a slide rail rod (26) is fixedly mounted on the bottom of the concave connecting plate (23).

4. A dovetail slide cylinder with an anti-fall mechanism as claimed in claim 3, characterized in that: The slide rail rod (26) is slidably mounted inside the connection plate (25); Wherein, a first cylindrical helical spring (27) is fixedly mounted on the bottom of the concave connecting plate (23).

5. A dovetail slide cylinder with an anti-fall mechanism as claimed in claim 4, characterized in that: One end of the first cylindrical coil spring (27) away from the concave connecting plate (23) is fixedly mounted on the connecting plate (25); Wherein, the first cylindrical coil spring (27) is sleeved inside the slide rail rod (26).

6. A dovetail slide cylinder with an anti-fall mechanism as claimed in claim 2, characterized in that: A linear guide rail slider (29) is fixedly mounted on the side wall of the cylinder body (11); The anti-fall sliding plate (22) is slidably mounted inside the linear slide rail slider (29).

7. A dovetail slide cylinder with an anti-fall mechanism as claimed in claim 6, characterized in that: A first damping rod (31) is fixedly mounted on the bottom of the cylinder body (11); Wherein, a connecting base plate (32) is fixedly mounted on the side wall of the first damping rod (31).

8. A dovetail slide cylinder with an anti-fall mechanism as claimed in claim 7, characterized in that: A second connecting rod (33) is rotatably mounted inside the connecting base plate (32); Wherein, a third connecting seat (34) is rotatably mounted on the side wall of the second connecting rod (33).

9. A dovetail type slide cylinder with an anti-fall mechanism as claimed in claim 8, characterized in that: A second cylindrical helical spring rod (35) is fixedly mounted on the side wall of the third connecting seat (34), and a U-shaped connecting frame (36) is slidably mounted on the side wall of the third connecting seat (34); The U-shaped connection frame (36) is fixedly mounted to the second cylindrical helical spring rod (35), and a fixed base (37) is fixedly mounted on the bottom of the U-shaped connection frame (36).

10. A dovetail type slide cylinder with an anti-fall mechanism as claimed in claim 9, characterized in that: A rubber buffer gasket (38) is fixedly mounted on the top of the fixed base (37), and an air delivery pipe (39) is fixedly mounted on the side wall of the cylinder body (11); A first clamping block (41) is fixedly mounted on the side wall of the gas delivery pipe (39), a clamping missing ring (42) is fixedly mounted on the side wall of the gas delivery pipe (39), a connecting pipe (43) is fixedly mounted inside the gas delivery pipe (39), and a sealing gasket (44) is fixedly mounted on the side wall of the connecting pipe (43).

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