Aerial work platform with brake cushioning protection function

Abstract

The aerial work platform comprises a supporting frame, driving tracks are installed on the outer walls of the two sides of the bottom of the supporting frame, a lifting table is arranged on the outer wall of one side of the supporting frame, sliding blocks are fixed to outer packages of the two ends of one side of the lifting table, and sliding grooves are symmetrically formed in the outer wall of the supporting frame; a screw hole is formed in the outer wall of the end, inserted into the sliding groove, of the sliding block, a screw is connected into the screw hole in a screwed mode, and the two ends of the screw are rotationally connected with the inner walls of the two ends of the sliding groove. Through the arrangement of the brake pull rope assembly, in the downward moving process of the lifting table, the winding box on the lifting table can move downwards along with the lifting table, the pull rope can be pulled out, and the winding disc is driven to rotate in the pulling-out process; the pull rope is pulled out to drive the connecting rod to move downwards to enable the end to be inserted into a tooth groove of the ring gear, rotation braking of the winding disc is achieved, the pulled-out pull rope is stressed to achieve the lifting function of the lifting platform, and the falling prevention function of the aerial work platform is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high altitude operation platform technical field, specifically, relate to a kind of high altitude operation platform with brake shock absorption protection function. BACKGROUND

[0002] High altitude operation platform is a kind of movable high altitude operation product serving each industry high altitude operation, equipment installation, maintenance etc., and the main types of high altitude operation platform include scissor high altitude operation platform, trailer high altitude operation platform, curved arm high altitude operation platform, straight arm high altitude operation platform, aluminum alloy high altitude operation platform, sleeve cylinder high altitude operation platform and spider high altitude operation platform etc., wherein, scissor high altitude operation platform is one of the most common types, it is provided with emergency lowering device under power failure condition, and different power forms can be selected according to different requirements, such as three-phase alternating current power supply, single-phase alternating current power supply, direct current power supply and internal combustion power etc., high altitude operation platform is suitable for industrial construction, municipal venue, power facility, petroleum chemical industry, metallurgy etc. Construction installation and post-maintenance, in the patent: CN 218465457 U discloses a kind of high altitude operation platform, including chassis, lifting mechanism and workbench, wherein lifting mechanism is telescopicly arranged on chassis, workbench is arranged on lifting structure, lifting mechanism includes at least one scissor arm assembly, scissor arm assembly includes two fork arm rod groups, wherein fork arm rod group includes hinged arm, upper telescopic arm, which is telescopicly arranged on the first end of hinged arm, and lower telescopic arm, which is telescopicly arranged on the second end of hinged arm, upper telescopic arm is hinged with workbench, lower telescopic arm is hinged with chassis, and the hinged arms of two fork arm rod groups are hinged.

[0003] However, the high altitude operation platform on the market has a relatively simple structure, and when the lifting platform moves abnormally downward, it cannot be emergency braked by stepping on the pedal, cannot play the role of high altitude operation platform anti-falling, the traditional high altitude operation platform does not have the function of downward shock absorption, cannot play the role of flexible protection for workers, and is not conducive to the stable operation of the operation platform. UTILITY MODEL CONTENT

[0004] The utility model aims at: in view of the existing high altitude operation platform, when moving abnormally downward, it cannot be emergency braked by stepping on the pedal, cannot play the role of high altitude operation platform anti-falling, the traditional high altitude operation platform does not have the function of downward shock absorption, cannot play the role of flexible protection for workers, and is not conducive to the stable operation of the operation platform.

[0005] In order to realize the above-mentioned utility model purposes, the utility model provides the following technical scheme:

[0006] The high altitude operation platform with brake shock absorption protection function is to improve the above-mentioned problems.

[0007] The present application is as follows:

[0008] The support frame is provided with driving caterpillar belts on the bottom two-side outer walls, a lifting platform is arranged on one side outer wall of the support frame, sliding blocks are fixed on both ends of one side outer wall of the lifting platform, sliding grooves are symmetrically arranged on the outer walls of the support frame, screw holes are arranged on the outer walls of one end of the sliding grooves, screw rods are screwed into the screw holes, the both ends of the screw rods are rotatably connected with the inner walls of both ends of the sliding grooves, a speed changer is arranged on the top outer wall of one side of the support frame, first sprockets are fixed on the end portions of the output shaft of the speed changer and the screw rod shaft, a first chain is sleeved between the first sprockets, second sprockets are fixed on the end portions of the output shaft of the speed changer and the screw rod shaft, a second chain is sleeved between the second sprockets, a driving motor is arranged on the bottom outer wall of the speed changer, the driving motor, the speed changer, the first sprockets and the second sprockets are coaxially connected, the first sprockets and the second sprockets are of the same specification, a brake pull rope assembly is arranged on the top outer wall of the lifting platform, and a falling pneumatic damping assembly is arranged on both sides of the top outer wall of the lifting platform.

[0009] As a preferred technical scheme of the present application, the brake pull rope assembly comprises a winding box fixed on one side of the top outer wall of the lifting platform, mounting shafts are rotatably arranged on both sides of the inner wall of the winding box, a winding disc is fixedly sleeved on the middle portion of the mounting shaft, a pull rope is fixedly wound on the outer wall of the winding disc, a through hole is formed through one side of the outer wall of the winding box, one end of the pull rope outside the through hole is fixedly connected with one side of the top outer wall of the support frame, an inner groove is formed in the bottom inner wall of the winding box, a clock spring is sleeved on the outer wall of one end inside the inner groove, a through hole is formed through one side of the top outer wall of the winding box, a connecting rod is inserted into the through hole, a limiting block is fixedly sleeved on the outer wall of one end inside the winding box, the top end of the connecting rod is fixed with a pedal, a first spring is sleeved on the outer wall below the pedal, and a ring gear is fixedly sleeved on the top outer wall of the winding disc.

[0010] As a preferred technical scheme of the present application, the falling pneumatic damping assembly comprises cylinder tubes which are fixedly distributed and inlaid on the top outer walls of four corners of the lifting platform, second springs are arranged on the top inner walls of the cylinder tubes, pistons are arranged on the inner walls below the second springs, pressing rods are fixed on the bottom outer walls of the pistons, the bottom ends of the pressing rods penetrate the outer portions of the cylinder tubes, air blowing rings are fixed on the top outer walls of the sliding blocks and above the screw holes, an air bag pad is fixedly attached to the top outer wall of the lifting platform, first air blowing pipes are communicated with one side of the top outer wall of each of the cylinder tubes, one end of each of the first air blowing pipes is respectively connected to the inner portions of the air blowing rings and the air bag pad, and guardrails are connected between the outer walls of the cylinder tubes.

[0011] As the preferred technical scheme of the present application, the connecting rod and the ring gear are matched components, and the bottom end of the connecting rod is inserted into the tooth groove of the ring gear.

[0012] As the preferred technical scheme of the present application, the top outer wall of the pedal is provided with friction grooves.

[0013] As the preferred technical scheme of the present application, one end of the clock spring is fixed with the end outer wall of the mounting shaft, and the other end of the clock spring is fixedly connected with the inner wall of one side of the inner groove.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] In the scheme of the present application:

[0016] 1. By arranging the brake pull rope assembly, during the descending process of the lifting platform, the winding box on the lifting platform will descend with the lifting platform, and the pull rope will be pulled out, and the winding disc will be driven to rotate during the pulling-out process. When the lifting platform needs to be braked in an emergency state, the user can step on the pedal to drive the connecting rod to descend and make the end portion be inserted into the tooth groove of the ring gear, so as to brake the rotation of the winding disc, make the pulled-out pull rope bear the force to play the role of lifting the lifting platform, play the role of braking the descending of the lifting platform, and play the role of preventing the aerial work platform from falling.

[0017] 2. By arranging the falling pneumatic damping assembly, during the descending process of the lifting platform, the pressing rod arranged at the bottom of the lifting platform first contacts the ground, and the pressing rod will drive the piston to ascend in the barrel during the descending process, and the second spring is compressed during the process to play the role of damping the descending of the lifting platform when contacting the ground, so that the aerial work platform is more stable and safe during lifting. During the ascending process of the piston in the barrel, the air in the barrel is compressed and discharged through the first air blowing pipe, so that the air is blown into the air blowing ring to play the role of blowing dust and cleaning the screw hole, which is beneficial to the stable operation of the work platform. The air is also input into the air bag cushion through the first air blowing pipe, and the air bag cushion is inflated to play the role of flexible protection for the workers on the lifting platform. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The present application provides the overall three-dimensional structure schematic diagram of the aerial work platform with the braking and damping protection function;

[0019] Figure 2 The present application provides the structure enlarged view of the A area of the aerial work platform with the braking and damping protection function;

[0020] Figure 3 The present application provides the structure enlarged view of the B area of the aerial work platform with the braking and damping protection function;

[0021] Figure 4The stereogram of the brake rope assembly of the aerial work platform with the brake shock protection function is provided in the application;

[0022] Figure 5 The structure enlarged view of the C area of the aerial work platform with the brake shock protection function is provided in the application;

[0023] Figure 6 The structure enlarged view of the D area of the aerial work platform with the brake shock protection function is provided in the application.

[0024] Indicated in the figure:

[0025] 1, support frame; 2, driving track; 3, lifting platform; 4, sliding block; 5, sliding groove; 6, screw hole; 7, screw rod; 8, speed changer; 9, first sprocket; 10, first chain; 11, driving motor; 12, brake rope assembly; 13, falling pneumatic shock absorption assembly; 14, friction groove; 15, second sprocket; 16, second chain;

[0026] 121, winding box; 122, mounting shaft; 123, winding disc; 124, rope; 125, through hole; 126, inner groove; 127, clockwork spring; 128, perforation; 129, connecting rod; 1210, limiting block; 1211, pedal; 1212, first spring; 1213, ring gear;

[0027] 131, barrel; 132, second spring; 133, piston; 134, pressing rod; 135, air blowing ring; 136, air bag pad; 137, first air blowing pipe; 138, guardrail. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0029] Therefore, the detailed description of the embodiments of the present application below is not intended to limit the scope of the claimed present application, but only represents some embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0030] It should be noted that the embodiments in the present application and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0031] It should be noted that like reference numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it should not require further defining and explaining in subsequent views.

[0032] In the description of the utility model, it needs to explain, the term "upper", "lower" and so on indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawing, or is the orientation or position relationship of the utility model product when using the usual place, or is the orientation or position relationship that the person skilled in the art usually understands, the terms are only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate with a particular orientation, therefore, it can not be understood as the limitation of the utility model.In addition, the terms "first", "second" and so on are only used for distinguishing description, and can not be understood as indicating or implying relative importance.

[0033] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6 , the embodiment proposes a high-altitude operation platform with brake shock absorption protection function, including support frame 1, the bottom of support frame 1 is installed with driving caterpillar band 2 on both sides of outer wall, the outer wall of one side of support frame 1 is provided with lifting platform 3, the outer wall of both ends of one side of lifting platform 3 is fixed with sliding block 4, the outer wall of one end of sliding groove 5 is provided with screw hole 6, the inner screw hole 6 is connected with screw rod 7, and the both ends of screw rod 7 are rotatably connected with the inner wall of both ends of sliding groove 5, the outer wall of one side of top of support frame 1 is installed with transmission 8, the end of transmission output shaft and one side screw rod 7 rotating shaft is fixed with first sprocket 9, first chain 10 is sleeved between first sprocket 9, the end of transmission output shaft and the other side screw rod 7 rotating shaft is fixed with second sprocket 15, second chain 16 is sleeved between second sprocket 15, driving motor 11 is installed on the outer wall of bottom of transmission 8, driving motor 11, transmission 8, first sprocket 9 and second sprocket 15 are coaxially connected, and first sprocket 9 and second sprocket 15 are the same specification, brake pull rope assembly 12 is arranged on the outer wall of top of lifting platform 3, falling pneumatic shock absorption assembly 13 is arranged on the outer wall of both sides of top of lifting platform 3, during the use of the high-altitude operation platform, the working platform is moved to the use place through driving caterpillar band 2, and is positioned and fixed;Control driving motor 11 works through transmission 8 variable speed drive first sprocket 9 and second sprocket 15 synchronous rotation, drive both sides screw rod 7 synchronous rotation under the cooperation transmission of first chain 10 and second chain 16, sliding block 4 is driven to move up and down along sliding groove 5 under the cooperation of screw rod 7 and screw hole 6, so as to drive lifting platform 3 to move up and down, realize the work of high-altitude operation platform.

[0034] As a preferred embodiment, on the basis of the above-mentioned mode, further, the brake rope assembly 12 comprises a winding box 121 fixed on one side of the outer wall of the top of the lifting platform 3, the mounting shaft 122 is rotatably installed on the inner wall of both sides of the winding box 121, the winding disc 123 is fixedly sleeved on the outer wall of the middle part of the mounting shaft 122, the rope 124 is fixedly wound on the outer wall of the winding disc 123, the through hole 125 is throughly formed on one side of the outer wall of the winding box 121, one end of the rope 124 outside the through hole 125 is fixedly connected with the top of one side of the outer wall of the support frame 1, the inner groove 126 is formed on the bottom inner wall of the winding box 121, the clock spring 127 is sleeved on the outer wall of the end inside the inner groove 126, the through hole 128 is throughly formed on one side of the top of the winding box 121, the connecting rod 129 is inserted in the through hole 128, the limiting block 1210 is fixedly sleeved on the outer wall of the end inside the winding box 121, the pedal 1211 is fixed on the top end of the connecting rod 129, the first spring 1212 is sleeved on the outer wall below the pedal 1211, the ring gear 1213 is fixedly sleeved on the top outer wall of the winding disc 123, during the descending of the lifting platform 3, the winding box 121 on the lifting platform 3 will follow the descending, so that the rope 124 fixed on the top end of the support frame 1 is drawn out, the drawing out of the rope 124 will drive the winding disc 123 to rotate under the action of the mounting shaft 122, when the lifting platform 3 needs to be braked abnormally during the descending, the user can step on the pedal 1211, so as to drive the connecting rod 129 to descend and make the end inserted into the gear slot of the ring gear 1213, realize the braking of the rotation of the winding disc 123, make the drawn-out rope 124 bear force to play the role of descending the lifting platform 3, play the role of braking the descending of the lifting platform 3, and play the role of preventing the aerial work platform from falling; the winding disc 123 will drive the clock spring 127 to expand and elastically deform during the unwinding, the winding disc 123 will be driven to rotate back under the action of the clock spring 127 during the ascending of the lifting platform 3 in the later period, the winding of the drawn-out rope 124 is carried out, and the normal operation of the aerial work platform is ensured.

[0035] As a preferred implementation, on the basis of the above manner, further, the falling pneumatic damping assembly 13 comprises cylinder pipes 131 distributed and embeddedly fixed on the outer walls of the four corners of the top of the lifting platform 3, second springs 132 are arranged on the inner walls of the tops of the cylinder pipes 131, pistons 133 are arranged on the inner walls below the second springs 132, pressing rods 134 are fixed on the bottom outer walls of the pistons 133, the bottom ends of the pressing rods 134 penetrate the outside of the cylinder pipes 131, air blowing rings 135 are fixed on the top outer walls of the sliding blocks 4 and are located above the screw holes 6, air bag pads 136 are fixed on the top outer walls of the lifting platform 3, first air blowing pipes 137 are communicated with the outer walls of one side of the tops of the cylinder pipes 131, one ends of the first air blowing pipes 137 are respectively connected to the inside of the air blowing rings 135 and the air bag pads 136, and guardrails 138 are connected between the outer walls of the cylinder pipes 131. During the lowering process of the aerial work platform lifting platform 3, the pressing rods 134 distributed and arranged on the bottom of the lifting platform 3 first contact the ground, the pressing rods 134 drive the pistons 133 to move upward in the cylinder pipes 131 during the lowering process, the second springs 132 are compressed during the process, the second springs 132 play a role in damping the lowering of the lifting platform 3, the aerial work platform lifting is more stable and safe, the air in the cylinder pipes 131 is compressed and discharged through the first air blowing pipes 137 during the upward movement of the pistons 133 in the cylinder pipes 131, the air is blown into the air blowing rings 135 to play a role in dust blowing and cleaning of the screw holes 6, which is beneficial to the stable operation of the work platform, and the air is also input into the air bag pads 136 through the first air blowing pipes 137, the air bag pads 136 are inflated and expanded to play a role in flexible protection of the workers on the lifting platform 3.

[0036] As a preferred implementation, on the basis of the above manner, further, the connecting rods 129 and the ring gears 1213 are cooperating members, the bottom ends of the connecting rods 129 are inserted into the tooth grooves of the ring gears 1213, the connecting rods 129 are inserted into the tooth grooves of the ring gears 1213 to play a role in braking the rotation of the winding discs 123, so as to realize the braking of the lowering of the lifting platform 3.

[0037] As a preferred implementation, on the basis of the above manner, further, friction grooves 14 are distributed and arranged on the top outer walls of the pedals 1211, the friction of the surfaces of the pedals 1211 is increased, and the pedals 1211 are facilitated to be stepped on.

[0038] As a preferred implementation, on the basis of the above manner, further, one end of the clockwork spring 127 is fixed with the end outer wall of the mounting shaft 122, and the other end of the clockwork spring 127 is fixedly connected with one side inner wall of the inner groove 126, the clockwork spring 127 drives the winding disc 123 to rotate under the elastic action of the clockwork spring 127, and the winding disc 123 winds up the pull rope 124.

[0039] Specifically, the aerial work platform with brake shock protection function in working / use: the aerial work platform during use, through the drive track 2 to move the work platform to the use of land, and positioning and fixing; control drive motor 11 work through the transmission 8 variable speed drive first sprocket 9 and second sprocket 15 synchronous rotation, in the first chain 10 and the second chain 16 transmission under the cooperation of both sides of the screw rod 7 synchronous rotation, in the screw rod 7 and the screw hole 6 cooperation will drive the slider 4 along the groove 5 to move up and down, thus driving the lifting platform 3 to move up and down, realize the work of aerial work platform; the above lifting platform 3 down during the process, the lifting platform 3 on the winding box 121 will follow down, so that the fixed in the support frame 1 top pull rope 124 extraction, pull rope 124 extraction will drive the winding disc 123 under the action of the installation shaft 122 to turn, in the lifting platform 3 down abnormal process needs emergency brake, the user can step on the pedal 1211, thus driving the connecting rod 129 to move down and make the end of the ring gear 1213 is inserted into the tooth groove, realize the winding disc 123 rotation brake, make the extracted pull rope 124 force play the role of lifting platform 3 hoisting down, play the role of lifting platform 3 down brake, play the role of aerial work platform anti falling; winding disc 123 rotation during the process of rope will drive the spring 127 to expand the elastic deformation, the later lifting platform 3 up during the process under the action of the spring 127 will drive the winding disc 123 to rotate, to extract the winding of pull rope 124, ensure the normal operation of aerial work platform; aerial work platform lifting platform 3 down during the process, the pressure bar 134 is distributed in the bottom of the lifting platform 3 first contact with the ground, the pressure bar 134 will drive the piston 133 in the cylinder tube 131 up during the process, compression second spring 132 play the role of lifting platform 3 landing shock absorption, make the aerial work platform lifting more stable and safe, the above piston 133 in the cylinder tube 131 up during the process, will the air in the cylinder tube 131 through the first blowing pipe 137 compression discharge, make the air into the blowing ring 135 to screw hole 6 play the role of blowing dust cleaning, conducive to the stable operation of the work platform, air through the first blowing pipe 137 will also be input to the air bag cushion 136, air bag cushion 136 inflation, to the staff on the lifting platform 3 play the role of flexible protection.

[0040] The above examples are only used to illustrate the present application and are not limited to the technical solutions described in the present application. Although the present application has been described in detail with reference to the above embodiments, the present application is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present application; and all technical solutions and improvements within the spirit and scope of the present application are covered by the claims of the present application.

Claims

1. An aerial work platform having a brake shock protection function, characterized by, The utility model provides a support frame (1), drive caterpillar band (2) is installed on the bottom both sides outer wall of support frame (1), and the one side outer wall of support frame (1) is provided with lifting platform (3), and the one side both ends outer package of lifting platform (3) is fixed with sliding block (4), and the outer wall of support frame (1) is provided with symmetrical slide groove (5), and the outer wall of one end inside slide groove (5) is provided with screw hole (6) that inserts joint, and the inside screw hole (6) is connected with screw rod (7) of screwing, and the both ends of screw rod (7) are rotatably connected with the both ends inner wall of slide groove (5), and the one side top outer wall of support frame (1) is installed with transmission (8), and the end of transmission (8) output shaft and one side screw rod (7) rotation axis is all fixed with first sprocket (9), and the first sprocket (9) between the sleeve of first chain (10) is installed, and the end of transmission (8) output shaft and the other side screw rod (7) rotation axis is all fixed with second sprocket (15), and the sleeve of second chain (16) between second sprocket (15), and the bottom outer wall of transmission (8) is installed with drive motor (11), and drive motor (11), transmission (8), first sprocket (9) and second sprocket (15) are coaxially connected, and first sprocket (9) and second sprocket (15) are same specification, and the top outer wall of lifting platform (3) is provided with brake pull rope subassembly (12), and the top both sides outer wall of lifting platform (3) is provided with fall pneumatic shock attenuation subassembly (13).

2. The aerial work platform with brake shock protection function according to claim 1, characterized in that, The brake pull rope subassembly (12) includes a winding box (121) fixed to the top outer wall of the lifting platform (3), mounting shafts (122) rotatably mounted on the inner walls of the winding box (121), a winding disc (123) fixedly sleeved to the outer wall of the mounting shaft (122), a pull rope (124) fixedly wound to the outer wall of the winding disc (123), a through hole (125) penetratingly formed in the outer wall of one side of the winding box (121), one end of the pull rope (124) penetratingly formed in the outer wall of the other end of the through hole (125) fixedly connected to the top outer wall of the support frame (1), an inner groove (126) formed in the bottom inner wall of the winding box (121), a clockwork spring (127) sleeved to the outer wall of one end of the inner groove (126) penetratingly formed in the mounting shaft (122), a through hole (128) penetratingly formed in the top outer wall of one side of the winding box (121), a connecting rod (129) insertedly formed in the through hole (128), a limiting block (1210) fixedly sleeved to the outer wall of one end of the winding box (121) penetratingly formed in the connecting rod (129), a pedal (1211) fixed to the top end of the connecting rod (129), a first spring (1212) sleeved to the outer wall of the connecting rod (129) below the pedal (1211), and a ring gear (1213) fixedly sleeved to the top outer wall of the winding disc (123).

3. The aerial platform of claim 1, wherein, The falling pneumatic damping assembly (13) comprises cylinder tubes (131) fixed in distribution on the outer walls of the four corners of the top of the lifting platform (3), second springs (132) are arranged on the inner walls of the top of the cylinder tubes (131), pistons (133) are arranged on the inner walls below the second springs (132), pressing rods (134) are fixed on the bottom outer walls of the pistons (133), the bottom ends of the pressing rods (134) penetrate the outside of the cylinder tubes (131), air blowing rings (135) are fixed on the top outer walls of the sliding blocks (4) and are located above the screw holes (6), air bag pads (136) are fixed on the top outer walls of the lifting platform (3), first air blowing pipes (137) are in communication with the outer walls of one side of the top of the cylinder tubes (131), one end of the first air blowing pipes (137) penetrates and is connected to the inside of the air blowing rings (135) and the air bag pads (136) respectively, and guardrails (138) are connected to the outer walls between the cylinder tubes (131).

4. The aerial platform of claim 2, wherein, The connecting rod (129) and the ring gear (1213) are matched members, and the bottom end of the connecting rod (129) is inserted into the tooth groove of the ring gear (1213).

5. The aerial platform of claim 2, wherein, The top outer walls of the pedals (1211) are provided with friction grooves (14) in distribution.

6. The aerial platform of claim 2, wherein, One end of the clockwork spring (127) is fixed with the end outer wall of the mounting shaft (122), and the other end of the clockwork spring (127) is fixedly connected with one side inner wall of the inner groove (126).

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