Stable intelligent traffic equipment

Abstract

The invention discloses stable intelligent traffic equipment, and relates to the technical field of intelligent traffic, the stable intelligent traffic equipment comprises a base, the top of the base is fixedly provided with a bearing column, the top of the bearing column is provided with a signal lamp, the top of the signal lamp is fixedly provided with a solar panel, and the bottom of the base is provided with a stabilizing device. A lifting device is arranged in the bearing column, a buffering device is arranged in the base, the rolling wheels are slidably installed at the bottom of the base, a contraction groove is formed in the bottom of the base, the fixed end of the hydraulic rod is fixedly installed at the top of the inner wall of the contraction groove, and the output end of the hydraulic rod is fixedly installed at the top of the rolling wheels. And the output end of the transmission rod is fixedly mounted at the top of a roller, and the roller moves towards the top to drive the output end of the transmission rod to move towards the top, so that the problem of carrying difficulty caused by heavy equipment is solved, and the practicability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent transportation, and specifically to a stable intelligent transportation device. Background Art

[0002] A stable intelligent transportation device can refer to various devices used for monitoring, managing, and optimizing traffic flow, which are designed to improve the efficiency, safety, and sustainability of road traffic.

[0003] The patent with the patent announcement number CN114120678B relates to a stable intelligent transportation device, including a lamp body, a support rod, and a bottom box. The support rod is vertically arranged, the bottom box is arranged at the bottom end of the support rod, the lamp body is arranged at the top end of the support rod, a snow removal mechanism is arranged on the support rod, a stabilizing mechanism is arranged on the bottom box. The snow removal mechanism includes a fixed pipe, a rotating pipe, a bearing, a fan blade, a power assembly, and at least two snow removal components. Each snow removal component includes a friction rod and two guiding units. The stabilizing mechanism includes a lifting ring and at least three stabilizing components. Each stabilizing component includes a connecting pipe, a suction cup, and a stabilizing unit. The connecting pipe is vertically arranged at the bottom of the bottom box, and the suction cup is installed at the bottom end of the connecting pipe. This stable intelligent transportation device realizes the function of snow removal through the snow removal mechanism. Moreover, the stability is improved through the stabilizing mechanism.

[0004] In the above patent, the function of snow removal is realized through the snow removal mechanism. Moreover, the stability is improved through the stabilizing mechanism. However, when the original traffic signal at the intersection fails, a mobile temporary signal lamp needs to be used. It is rather troublesome when the temporary signal lamp is moved. And after the mobile signal lamp is hit, the damaged signal lamp may cause traffic interference, especially at busy intersections or on highways. The signal lamp that fails to work properly may cause traffic congestion, chaos, and accidents, affecting the operation efficiency and safety of the entire traffic system. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a stable intelligent transportation device, which solves the problems put forward in the above background art.

[0006] To achieve the above purposes, the present invention is realized through the following technical solutions: A stable intelligent transportation device, including a base, a load-bearing column is fixedly installed on the top of the base, a signal lamp is arranged on the top of the load-bearing column, a solar panel is fixedly installed on the top of the signal lamp, a stabilizing device is arranged at the bottom of the base, a lifting device is arranged inside the load-bearing column, and a buffering device is arranged inside the base; Among them, the stabilizing device includes: a roller, a hydraulic rod, a transmission rod, a gear, a telescopic rod, a transmission block, a stabilizing seat and a button. The roller is slidably installed at the bottom of the base. A contraction groove is formed at the bottom of the base. The fixed end of the hydraulic rod is fixedly installed at the top of the inner wall of the contraction groove. The output end of the hydraulic rod is fixedly installed at the top of the roller. The fixed end of the transmission rod is fixedly installed at the top of the inner wall of the contraction groove. The output end of the transmission rod is fixedly installed at the top of the roller. When the roller moves upward, it will drive the output end of the transmission rod to move upward. A tooth teeth are arranged on the surface of the output end of the transmission rod. The gear is rotatably installed on the surface of the inner wall of the contraction groove. The gear meshes with the A tooth teeth. The output end of the telescopic rod is fixedly installed at the top of the inner wall of the contraction groove. B tooth teeth are arranged on the surface of the output end of the telescopic rod. The B tooth teeth mesh with the gear. The transmission block is fixedly installed on the surface of the output end of the telescopic rod. When the output end of the telescopic rod moves, it will drive the transmission block to move. The stabilizing seat is fixedly installed on the surface of the transmission block. The button is arranged on the top of the base. The button is electrically connected to the hydraulic rod.

[0007] According to the above technical solution, the lifting device includes: a support column, a sliding plate, a rotating plate, a wrench, a rotating plate, a limiting rod, an electric telescopic rod and a first spring. The support column passes through and is slidably installed in the inner wall of the load-bearing column. A limiting groove A and a limiting groove B are formed on the circumferential surface of the support column. A sliding groove is formed on the surface of the load-bearing column. The sliding plate is slidably installed on the surface of the sliding groove. The rotating plate is slidably installed on the surface of the sliding plate. The wrench is rotatably installed on the surface of the rotating plate. C tooth teeth are arranged on the surface of the wrench. When the wrench moves, it will drive the C tooth teeth to move.

[0008] According to the above technical solution, the C tooth teeth are in contact with the limiting groove A. A sliding groove is arranged on the surface of the sliding plate close to the rotating plate.

[0009] According to the above technical solution, the lifting device further includes: the rotating plate is fixedly installed on the top of the base. The limiting rod is rotatably installed on the surface of the rotating plate. The fixed end of the electric telescopic rod is fixedly installed on the top of the base. The output end of the electric telescopic rod is fixedly installed at the bottom of the limiting rod. When the electric telescopic rod moves downward, it will drive the end of the limiting rod close to the base to move downward.

[0010] According to the above technical solution, a first spring is arranged between the limiting rod and the base. The limiting rod is in contact with the limiting groove B. The limiting rod is driven to reset by the first spring.

[0011] According to the above technical solution, an induction module and a control module are arranged inside the electric telescopic rod. The induction module is electrically connected to the control module.

[0012] According to the above technical solution, the buffer device includes: an air storage cylinder, a piston, a push rod, a buffer plate, a shrapnel and a second spring. A buffer groove is formed on the surface of the base. The air storage cylinder is fixedly installed on the top of the buffer groove. An air outlet hole is formed on the circumferential surface of the air storage cylinder. The piston is slidably installed on the inner wall of the air storage cylinder. One end of the push rod is fixedly installed on the top of the piston. The movement of the push rod will drive the movement of the piston. The buffer plate is fixedly installed on the top of the other end of the push rod. The shrapnel is fixedly installed on the inner wall of the load-bearing column.

[0013] According to the above technical solution, a second spring is arranged between the piston and the air storage cylinder. The buffer plate contacts the support column. The piston is driven to reset by the second spring.

[0014] The present invention provides a stable intelligent transportation device. It has the following beneficial effects: (1) In this invention, the convenience during movement is improved by setting rollers at the bottom of the base, which enhances the practicality of the device. After moving to the required position, press the button, and the button will control the output end of the hydraulic rod to move upward. The movement of the output end of the hydraulic rod will drive the movement of the rollers, so that when the device reaches the required position, the rollers can be retracted to make the base contact the ground, increasing the grounding area of the device and improving stability. When the rollers move, they will drive the output end of the transmission rod to move. The movement of the output end of the transmission rod will drive the gear to rotate. The rotation of the gear will drive the output end of the telescopic rod to move downward. The movement of the output end of the telescopic rod will drive the stabilizing seat to move downward, so that the stabilizing seat contacts the ground to prevent the device from shaking when being impacted, further improving the stability and safety of the device.

[0015] (2) In this invention, by pushing the wrench towards the support column, the movement of the wrench drives the movement of the C teeth. The C teeth will mesh with the A limit slot during movement. Then, by rotating the wrench downwards, the rotation of the wrench drives the support group to move upwards, realizing the adjustment of the signal lamp according to the required height, preventing the signal lamp from being too low for the driver to clearly observe. Before adjustment, hold one end of the limit rod close to the base. The movement of one end of the limit rod close to the base drives the other end of the limit rod away from the base to move away from the B limit. When the limit rod no longer contacts the B limit slot, the limit on the support column is released. After pressing one end of the limit rod close to the base, the limit rod will reset through the first spring and drive the limit rod to catch the B limit slot again, enabling quick limitation of the support column, preventing the signal lamp from falling during operation and affecting normal work, and improving the stability of the device. When the base is impacted, the sensing module will activate the control module, and the control module will control the output end of the electric telescopic rod to move downwards. The movement of the output end of the electric telescopic rod drives the rotation of the limit rod, and the rotation of the limit rod releases the limit on the support column, causing the signal lamp to quickly fall downwards after being impacted, reducing the center of gravity of the device, improving stability, and preventing the signal lamp from tipping over and causing injury to personnel when it is too high and then impacted.

[0016] (3) In this invention, when the signal lamp contracts, the support column will contact the buffer plate. The movement of the buffer plate squeezes the elastic sheet. After being squeezed, the elastic sheet will deform. After the elastic sheet deforms, the contact area with the buffer plate increases. With the increased contact area, the descending speed of the buffer plate is slowed down, preventing the signal lamp from descending too fast and being damaged, and improving the protection of the device. The movement of the buffer plate drives the movement of the push rod, the movement of the push rod drives the movement of the piston, and the piston moves to slowly discharge the air in the air storage cylinder through the air outlet hole, thus slowing down the descending speed of the signal lamp and further improving the protection and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the positional relationship between the roller and the base of the present invention; Figure 3 is a schematic diagram of the stabilizing device of the present invention; Figure 4 is a schematic diagram of the positional relationship between the limit rod and the B limit slot of the present invention; Figure 5 is the present invention Figure 4 a magnified schematic diagram of the A part structure in; Figure 6 is a schematic diagram of the lifting device of the present invention; Figure 7 is a schematic diagram of the buffer device of the present invention; Figure 8 This is a schematic cross-sectional structure diagram of the air storage cylinder of the present invention.

[0018] In the figure: 1, base; 2, load-bearing column; 3, signal lamp; 4, solar panel; 51, roller; 52, hydraulic rod; 53, transmission rod; 54, gear; 55, telescopic rod; 56, transmission block; 57, stable seat; 58, button; 61, support column; 62, sliding plate; 63, rotating plate; 64, wrench; 65, rotating plate; 66, limiting rod; 67, electric telescopic rod; 68, first spring; 71, air storage cylinder; 72, piston; 73, push rod; 74, buffer plate; 75, elastic sheet; 76, second spring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 3 , an embodiment of the present invention is: a stable intelligent transportation device, including a base 1, a load-bearing column 2 is fixedly installed on the top of the base 1, a signal lamp 3 is arranged on the top of the load-bearing column 2, a solar panel 4 is fixedly installed on the top of the signal lamp 3, and a stabilizing device is arranged at the bottom of the base 1; The stabilizing device includes: a roller 51, a hydraulic rod 52, a transmission rod 53, a gear 54, a telescopic rod 55, a transmission block 56, a stable seat 57 and a button 58. The roller 51 is slidably installed at the bottom of the base 1. A contraction groove is opened at the bottom of the base 1. The fixed end of the hydraulic rod 52 is fixedly installed on the top of the inner wall of the contraction groove, and the output end of the hydraulic rod 52 is fixedly installed on the top of the roller 51. The fixed end of the transmission rod 53 is fixedly installed on the top of the inner wall of the contraction groove, and the output end of the transmission rod 53 is fixedly installed on the top of the roller 51. A tooth teeth A are arranged on the surface of the output end of the transmission rod 53. The gear 54 is rotatably installed on the surface of the inner wall of the contraction groove, and the gear 54 meshes with the tooth teeth A. The output end of the telescopic rod 55 is fixedly installed on the top of the inner wall of the contraction groove, and tooth teeth B are arranged on the surface of the output end of the telescopic rod 55. The tooth teeth B mesh with the gear 54. The transmission block 56 is fixedly installed on the surface of the output end of the telescopic rod 55, the stable seat 57 is fixedly installed on the surface of the transmission block 56, the button 58 is arranged on the top of the base 1, and the button 58 is electrically connected to the hydraulic rod 52, so that the stable seat 57 contacts the ground, preventing the device from shaking when being hit, and further improving the stability and safety of the device.

[0021] During the operation of this embodiment: The solar panel 4 absorbs sunlight and converts light energy into electrical energy to supply power to the signal lamp 3 and the hydraulic rod 52, pushing the base 1. When the base 1 moves, it drives the roller 51 to rotate, facilitating the movement of the device, solving the problem of difficult handling caused by the heavy weight of the device, and improving the practicability of the device. When the device moves to the required position, press the button 58. The button 58 will control the output end of the hydraulic rod 52 to contract, and the output end of the hydraulic rod 52 will move upward. The movement of the hydraulic rod 52 will drive the roller 51 to move upward, so that when the device reaches the required position, the roller 51 can be retracted, making the base 1 contact the ground, increasing the grounding area of the device and improving stability. The upward movement of the roller 51 will drive the output end of the transmission rod 53 to move upward. The movement of the output end of the transmission rod 53 will drive the A tooth to move. The movement of the A tooth will drive the gear 54 to rotate. The rotation of the gear 54 will drive the B tooth to move downward. The movement of the B tooth will drive the output end of the telescopic rod 55 to move. The movement of the output end of the telescopic rod 55 will drive the transmission block 56 to move. The movement of the transmission block 56 will drive the stable seat 57 to move, making the stable seat 57 contact the ground and preventing the device from shaking when being impacted, further improving the stability and safety of the device.

[0022] Please refer to Figures 1 - 8 , on the basis of the above embodiment, in another embodiment of the present invention, a lifting device is provided inside the load-bearing column 2, and a buffer device is provided inside the base 1. The lifting device includes: a support column 61, a sliding plate 62, a rotating plate 63, a wrench 64, a rotating plate 65, a limiting rod 66, an electric telescopic rod 67, and a first spring 68. The support column 61 penetrates and is slidably installed on the inner wall of the load-bearing column 2. A limit groove A and a limit groove B are provided on the circumferential surface of the support column 61. A sliding groove is provided on the surface of the load-bearing column 2. The sliding plate 62 is slidably installed on the surface of the sliding groove. The rotating plate 63 is slidably installed on the surface of the sliding plate 62. The wrench 64 is rotatably installed on the surface of the rotating plate 63. C teeth are provided on the surface of the wrench 64, realizing that the signal lamp 3 can be adjusted according to the required height, preventing the signal lamp 3 from being too low for the driver to clearly observe the signal lamp 3.

[0023] The C teeth are in contact with the limit groove A. A sliding groove is provided on the surface of the sliding plate 62 close to the rotating plate 63.

[0024] The lifting device further includes: the rotating plate 65 is fixedly installed on the top of the base 1. The limiting rod 66 is rotatably installed on the surface of the rotating plate 65. The fixed end of the electric telescopic rod 67 is fixedly installed on the top of the base 1. The output end of the electric telescopic rod 67 is fixedly installed at the bottom of the limiting rod 66. After the support column 61 loses its limit, it will quickly fall to the bottom, reducing the center of gravity of the device and improving stability, preventing the signal lamp 3 from tipping over when being impacted after rising too high and causing injury to personnel.

[0025] A first spring 68 is arranged between the limit rod 66 and the base 1. The limit rod 66 contacts the B limit groove, and the limit rod 66 is driven by the first spring 68 to reset.

[0026] An induction module and a control module are arranged inside the electric telescopic rod 67, and the induction module is electrically connected to the control module.

[0027] The buffer device includes: an air storage cylinder 71, a piston 72, a push rod 73, a buffer plate 74, a spring piece 75 and a second spring 76. A buffer groove is formed on the surface of the base 1. The air storage cylinder 71 is fixedly installed at the top of the buffer groove. Air outlet holes are formed on the circumferential surface of the air storage cylinder 71. The piston 72 is slidably installed on the inner wall of the air storage cylinder 71. One end of the push rod 73 is fixedly installed on the top of the piston 72. The buffer plate 74 is fixedly installed on the top of the other end of the push rod 73. The spring piece 75 is fixedly installed on the inner wall of the load-bearing column 2. When the piston 72 moves, the air in the air storage cylinder 71 will be slowly discharged through the air outlet holes, so as to slow down the descending speed of the signal lamp 3, and further improve the protection and safety of the device.

[0028] A second spring 76 is arranged between the piston 72 and the air storage cylinder 71. The buffer plate 74 contacts the support column 61, and the piston 72 is driven by the second spring 76 to reset.

[0029] During the operation of this embodiment: Push the wrench 64 towards the load-bearing column 2. The movement of the wrench 64 will drive the movement of the C teeth. The movement of the C teeth will contact the A limit groove. After the C teeth are engaged with the A limit groove, rotate the end of the wrench 64 away from the load-bearing column 2 towards the bottom. The movement of the end of the wrench 64 away from the load-bearing column 2 towards the bottom will drive the end of the wrench 64 close to the load-bearing column 2 to move towards the top. The movement of the end of the wrench 64 close to the load-bearing column 2 towards the top will drive the support column 61 to move towards the top. The movement of the support column 61 will drive the signal lamp 3 to move, realizing the adjustment of the signal lamp 3 according to the required height, preventing the signal lamp 3 from being too low for the driver to clearly observe. Before adjusting the signal lamp 3, press the end of the limit rod 66 close to the base 1. The movement of the end of the limit rod 66 close to the base 1 will drive the end of the limit rod 66 away from the base 1 to move away from the B limit groove. The movement of the end of the limit rod 66 away from the base 1 will release the limit on the B limit groove, so that the height of the support column 61 can be adjusted. After the height adjustment is completed, stop pressing the end of the limit rod 66 close to the base 1. The reset of the first spring 68 drives the end of the limit rod 66 close to the base 1 to move towards the top. The movement of the end of the limit rod 66 close to the base 1 towards the top will drive the end of the limit rod 66 close to the B limit groove to move towards the limit groove. The movement of the end of the limit rod 66 close to the B limit groove will contact the B limit groove and limit the support column 61, enabling quick limitation of the support column 61 and preventing the signal lamp 3 from falling during operation and affecting normal work, improving the stability of the device. When the base 1 is impacted, the sensing module will detect the impact and then start the control module. The control module controls the output end of the electric telescopic rod 67 to move towards the bottom. The movement of the electric telescopic rod 67 towards the bottom will drive the end of the limit rod 66 close to the base 1 to move towards the bottom. The movement of the end of the limit rod 66 close to the base 1 will drive the end of the limit rod 66 away from the base 1 to move away from the B limit groove. The movement of the end of the limit rod 66 away from the base 1 will release the limit on the B limit groove. After the support column 61 loses the limit, it will quickly fall towards the bottom, reducing the center of gravity of the device and improving stability, preventing the signal lamp 3 from tipping over when it is hit after rising too high and causing injury to personnel.

[0030] When the signal lamp 3 falls rapidly after being impacted, the support column 61 will contact the buffer plate 74. The movement of the signal lamp 3 will drive the buffer plate 74 to move towards the bottom. The movement of the buffer plate 74 will contact and squeeze the elastic piece 75. After being squeezed, the elastic piece 75 will deform, increasing the contact area with the buffer plate 74. Due to the increased contact area between the buffer plate 74 and the elastic piece 75, the frictional force increases. After the frictional force increases, it will slow down the descending speed of the support column 61, preventing the signal lamp 3 from being damaged due to too fast a descending speed, improving the protection of the device. The movement of the buffer plate 74 will drive the push rod 73 to move towards the bottom. The movement of the push rod 73 will drive the piston 72 to move. The movement of the piston 72 will slowly discharge the air in the air storage cylinder 71 through the air outlet holes, so as to slow down the descending speed of the signal lamp 3, further improving the protection and safety of the device.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable intelligent transportation device, comprising a base (1), characterized in that: A load-bearing column (2) is fixedly mounted on the top of the base (1), a signal light (3) is arranged on the top of the load-bearing column (2), a solar panel (4) is fixedly mounted on the top of the signal light (3), a stabilizing device is arranged at the bottom of the base (1), a lifting device is arranged inside the load-bearing column (2), and a buffer device is arranged inside the base (1); The stabilizing device comprises: a roller (51), a hydraulic rod (52), a transmission rod (53), a gear (54), a telescopic rod (55), a transmission block (56), a stabilizing seat (57) and a button (58); the roller (51) is slidably mounted on the bottom of the base (1); a contraction groove is provided at the bottom of the base (1); a fixed end of the hydraulic rod (52) is fixedly mounted on the top of the inner wall of the contraction groove; an output end of the hydraulic rod (52) is fixedly mounted on the top of the roller (51); a fixed end of the transmission rod (53) is fixedly mounted on the top of the inner wall of the contraction groove; an output end of the transmission rod (53) is fixedly mounted on the top of the roller (51); The output end surface of the transmission rod (53) is provided with A teeth, the gear (54) is rotatably mounted on the inner wall surface of the contraction groove, the gear (54) meshes with the A teeth, the output end of the telescopic rod (55) is fixedly mounted on the top of the inner wall of the contraction groove, the output end surface of the telescopic rod (55) is provided with B teeth, the B teeth mesh with the gear (54), the transmission block (56) is fixedly mounted on the surface of the output end of the telescopic rod (55), the stabilizing seat (57) is fixedly mounted on the surface of the transmission block (56), the button (58) is arranged on the top of the base (1), and the button (58) is electrically connected to the hydraulic rod (52).

2. A stable intelligent traffic device according to claim 1, characterized in that: The lifting device comprises: a support column (61), a sliding plate (62), a rotating plate (63), a wrench (64), a rotating plate (65), a limit rod (66), an electric telescopic rod (67) and a No. 1 spring (68); the support column (61) penetrates and is slidably mounted on the inner wall of the load-bearing column (2); a limit groove A and a limit groove B are provided on the circumferential surface of the support column (61); a sliding groove is provided on the surface of the load-bearing column (2); the sliding plate (62) is slidably mounted on the surface of the sliding groove; the rotating plate (63) is slidably mounted on the surface of the sliding plate (62); the wrench (64) is rotatably mounted on the surface of the rotating plate (63); and the surface of the wrench (64) is provided with C teeth.

3. A stable intelligent traffic device according to claim 2, characterized in that: The C teeth are in contact with the A limit grooves, and a sliding groove is provided on a surface of the sliding plate (62) close to the rotating plate (63).

4. A stable intelligent transportation device according to claim 3, characterized in that: The lifting device further comprises: the rotating plate (65) is fixedly mounted on the top of the base (1); the limiting rod (66) is rotatably mounted on the surface of the rotating plate (65); the fixed end of the electric telescopic rod (67) is fixedly mounted on the top of the base (1); and the output end of the electric telescopic rod (67) is fixedly mounted on the bottom of the limiting rod (66).

5. A stable intelligent transportation device according to claim 4, characterized in that: A No. 1 spring (68) is provided between the limiting rod (66) and the base (1), and the limiting rod (66) is in contact with the limiting groove B.

6. A stable intelligent transportation device according to claim 5, characterized in that: The electric telescopic rod (67) is provided with a sensing module and a control module inside, and the sensing module is electrically connected to the control module.

7. A stable intelligent transportation device according to claim 6, characterized in that: The buffer device comprises: an air cylinder (71), a piston (72), a push rod (73), a buffer plate (74), a spring (75) and a No. 2 spring (76); a buffer groove is provided on the surface of the base (1); the air cylinder (71) is fixedly mounted on the top of the buffer groove; an air outlet hole is provided on the circumferential surface of the air cylinder (71); the piston (72) is slidably mounted on the inner wall of the air cylinder (71); one end of the push rod (73) is fixedly mounted on the top of the piston (72); the buffer plate (74) is fixedly mounted on the top of the other end of the push rod (73); and the spring (75) is fixedly mounted on the inner wall of the load-bearing column (2).

8. A stable intelligent traffic device according to claim 7, characterized in that: A No. 2 spring (76) is provided between the piston (72) and the air storage cylinder (71), and the buffer plate (74) is in contact with the support column (61).

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