CN118373363B - Safety protection device for aerial working platform - Google Patents
Safety protection device for aerial working platform Download PDFInfo
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- CN118373363B CN118373363B CN202410815496.1A CN202410815496A CN118373363B CN 118373363 B CN118373363 B CN 118373363B CN 202410815496 A CN202410815496 A CN 202410815496A CN 118373363 B CN118373363 B CN 118373363B
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- 230000007246 mechanism Effects 0.000 claims abstract description 96
- 210000001503 joint Anatomy 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 11
- 230000003028 elevating effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 17
- 230000001174 ascending effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to the technical field of high-altitude operation machinery and discloses a safety protection device for an high-altitude operation platform, which comprises a mast lifting mechanism, wherein one side of the mast lifting mechanism is in butt joint with a fly arm mechanism, one end of the fly arm mechanism is in butt joint with an operation platform assembly through a connecting structure, the operation platform assembly comprises a platform main part, the bottom of the platform main part is in butt joint with two supporting arms through an offset detection assembly, the top of the platform main part is provided with a telescopic fence, the telescopic fence comprises a plurality of three-stage telescopic struts, and the three-stage telescopic struts are fixedly connected at the top of the platform main part.
Description
Technical Field
The invention relates to the technical field of aerial working machinery, in particular to a safety protection device for an aerial working platform.
Background
The utility model provides an aerial working platform is a professional aerial working equipment for lift up work such as construction, installation, maintenance to certain height with staff, instrument, material etc. chinese patent (CN 117509491 a) discloses a walking aerial working platform, including walking base, be equipped with the revolving stage on the walking base, be fixed with mast elevating gear on the revolving stage, articulated the one end that has telescopic big support arm on the mast elevating gear, the other end of big support arm is connected with the working platform through connection structure, be equipped with luffing mechanism between big support arm and the mast elevating gear, be equipped with the leveling mechanism between mast elevating gear, big support arm and the connection structure, this working platform can also send the working platform to the operating point even under the circumstances of meetting the obstacle, and can make the working platform remain the horizontality all the time, simultaneously can carry out accurate monitoring to the load of working platform in whole process, thereby ensure operating personnel's safety.
The prior operation platform has some defects, firstly, the operation platform is provided with a fence for preventing operators from falling off, the fence is usually limited in height for facilitating the construction of the operators, the operators cannot be comprehensively protected, and in the process of lifting the operation platform, the upper body part of the operators has collision risks with buildings or the periphery, so that good protection effect cannot be achieved; secondly, when an emergency exists, equipment shake is caused by the conditions such as severe and strong wind weather or collision obstacles during movement, and the equipment cannot make emergency measures, so that certain potential safety hazards exist.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a safety protection device for an aerial working platform, which solves the problems that the safety protection effect is insufficient in the prior art in the background art, such as that an operation platform fence cannot comprehensively protect operators and shaking caused by equipment under emergency cannot make emergency measures.
The invention provides the following technical scheme: the safety protection device for the aerial working platform comprises a mast lifting mechanism, wherein one side of the mast lifting mechanism is abutted with a fly arm mechanism, one end of the fly arm mechanism is abutted with a working platform assembly through a connecting structure, the working platform assembly comprises a platform main part, two supporting arms are abutted through an offset detection assembly at the bottom of the platform main part, a telescopic fence is arranged at the top of the platform main part and comprises a plurality of three-stage telescopic support posts, the three-stage telescopic support posts are fixedly connected at the top of the platform main part, the top ends of the three-stage telescopic support posts are fixedly connected with a fence main part, the fence main part is in transmission connection with the platform main part through the three-stage telescopic mechanism, the side walls of the three-stage telescopic support posts are fixedly connected with a first fence frame and a second fence frame, and one side of the two supporting arms are connected with the connecting structure;
The deflection detection assembly comprises a transverse moving mechanism and a longitudinal moving mechanism, wherein the transverse moving mechanism is in butt joint with the side wall of a supporting arm, the longitudinal moving mechanism is in butt joint with the top of the transverse moving mechanism, a platform main part is fixedly connected with the top of the longitudinal moving mechanism, the inner side surfaces of the two supporting arms are fixedly connected with fixing plates, the top of each fixing plate is fixedly connected with a square static block, the side wall of each square static block is movably sleeved with a square movable housing, the square movable housing is fixedly connected with the bottom of the platform main part, pressure sensors penetrating through the inside are respectively arranged on four sides of the square movable housing, and an alarm is fixedly arranged at the bottom of each fixing plate; the pressure sensor is used for triggering the control system to control the alarm to operate, the mast lifting mechanism to operate and descend, and the three-stage telescopic mechanism to operate and extend.
Further, tertiary flexible pillar is including one-level post, second grade post, tertiary post, the second grade post cup joints at one-level post lateral wall slip, tertiary post cup joints at second grade post lateral wall slip, limit groove one has been seted up to second grade post lateral wall, tertiary post inner wall fixedly connected with stopper one, stopper one cup joints in limit groove one slip, fence frame one is at tertiary post lateral wall fixed connection, fence frame two is at second grade post lateral wall fixed connection.
Further, a second limit groove is formed in the side wall of the primary column, a second limit block is fixedly connected to the inner wall of the secondary column, and the second limit block is in sliding sleeve connection in the second limit groove.
Further, tertiary telescopic machanism is including one-level cover shell, the inside second grade cover shell that has cup jointed of one-level cover shell, the inside third grade cover shell that has cup jointed of second grade cover shell, one-level cover shell top is connected with the rail main part through connecting seat one, third grade cover shell bottom is connected with the platform main part through connecting seat two, second grade cover shell positive back is provided with groove box one, groove box two respectively, groove box one, groove box two are inside to have movably cup jointed threaded rod one, threaded rod two respectively, threaded rod one lateral wall screw has cup jointed connecting block one, its connecting block one and third grade cover shell external wall connection, groove box two lateral wall screw cup jointed connecting block two, its connecting block two and one-level cover shell internal wall connection, second grade cover shell side fixed mounting has two to revolve to drive the mechanism, two drive mechanism output and threaded rod two, threaded rod one bottom butt joint respectively.
Further, the double-rotation driving mechanism comprises a motor, two driving bevel gears and two driven bevel gears, wherein the inner sides of the driving bevel gears are fixedly connected through a transmission rod, the driving bevel gears are respectively meshed with the two driven bevel gears, the driven bevel gears are respectively connected with one bottom end of a threaded rod and two bottoms of the threaded rod, the driving bevel gears are respectively located on the front side and the back side of the three-stage casing, the motor is fixedly installed on the outer wall of the two-stage casing through a connecting plate, and an output shaft of the motor penetrates through the connecting plate to be connected with one driving bevel gear.
Further, the front and back surfaces of the three-stage casing are provided with vertical through grooves, and the transmission rod penetrates through the vertical through grooves and is sleeved in a sliding manner in the vertical through grooves.
Further, the two driven bevel gears are located on the outer sides of the two driving bevel gears, and the two driven bevel gears are located on the tops of the two driving bevel gears.
Further, the sideslip mechanism is including two locating plates, movable support, two the locating plate is at bracket top fixed connection, movable support is at bracket top slip socket joint, movable support is located two locating plate clearance departments, and movable support both ends all are connected with two locating plate transmission through a plurality of spring one, the spout has been seted up at movable support top, the mechanism that indulges is sliding socket joint in movable support spout.
Further, two locating plate medial surface fixedly connected with a plurality of anticreep bars, movable support cup joints at anticreep bar lateral wall slip.
Further, the longitudinal moving mechanism comprises a top connecting plate, ear blocks are fixedly connected to two ends of the bottom of the top connecting plate, two ear blocks are located on the outer side faces of the two supporting arms, and the two ear blocks are in transmission connection with the transverse moving mechanism on the two supporting arms through a plurality of springs II.
The invention has the technical effects and advantages that:
According to the invention, the deflection detection assembly is arranged to detect the shaking of the equipment, when the equipment shakes, the pressure sensor is contacted with the square static block under the action of the transverse moving mechanism and the longitudinal moving mechanism, the alarm is used for carrying out safety warning, and the mast lifting mechanism is controlled to descend in the process, so that the height of the operation platform assembly is reduced to achieve the emergency risk avoiding effect, and the safety of operators is ensured;
Through setting up telescopic rail, move through tertiary telescopic machanism in the high lifting process of operation platform subassembly, rail overall height increases to protect the whole body of operating personnel, the collision of operating personnel upper body part and foreign matter can be avoided in the operation platform subassembly rising process, more excellent safety protection effect is reached, then control telescopic rail through tertiary telescopic machanism to retract and switch into the half body protection state in the operation process, avoids causing the interference to the operation process;
And when the telescopic fence collides with a building or the periphery, the telescopic fence can be linked with the transverse moving mechanism and the longitudinal moving mechanism, the square static block can be contacted with the pressure sensor, the pressure sensor detects that the pressure control mast lifting mechanism descends, the effect of collision loss reduction is achieved, the influence on an internal operator caused by the deformation of the fence is avoided, in addition, when the equipment suddenly shakes, the pressure sensor triggers the control mast lifting mechanism to descend, and meanwhile, the telescopic fence is linked with the three-stage telescopic mechanism, so that the telescopic fence ascends again for whole body protection, and the safety protection performance in the emergency risk avoiding process can be further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the work platform assembly of FIG. 1 according to the present invention;
FIG. 3 is an exploded view of the work platform assembly of FIG. 1 according to the present invention;
FIG. 4 is a schematic diagram of the offset detection assembly of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the three-stage telescoping leg structure of FIG. 3 in accordance with the present invention;
FIG. 6 is a schematic view of the three stage telescoping mechanism of FIG. 3 according to the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6A according to the present invention;
FIG. 8 is a schematic view of the traversing mechanism of FIG. 4 according to the present invention;
fig. 9 is a schematic view of the longitudinal moving mechanism in fig. 4 according to the present invention.
The reference numerals are: 1. a mast lift mechanism; 2. a fly arm mechanism; 3. a connection structure; 4. an operation platform assembly; 41. a platform master; 42. an offset detection assembly; 43. a bracket arm; 44. three-stage telescopic support columns; 45. a rail main part; 46. a first column frame; 47. a second frame; 48. a three-stage telescopic mechanism; 421. a traversing mechanism; 422. a longitudinal movement mechanism; 423. a fixing plate; 424. square static block; 425. square movable cover shell; 426. a pressure sensor; 427. an alarm; 441. a primary column; 442. a secondary column; 443. a third-stage column; 444. a first limit groove; 445. a first limiting block; 446. a limiting groove II; 447. a second limiting block; 481. a first-stage casing; 482. a secondary casing; 483. a three-stage casing; 484. a second groove box; 485. a second threaded rod; 486. a first groove box; 487. a first threaded rod; 488. a double-rotation driving mechanism; 4881. a transmission rod; 4882. a driving bevel gear; 4883. a passive bevel gear; 4884. a connecting plate; 4885. a motor; 4211. a positioning plate; 4212. a movable support; 4213. an anti-drop bar; 4214. a first spring; 4221. a top connecting plate; 4222. ear pieces; 4223. and a second spring.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings.
Referring to fig. 1-4, the invention provides a safety protection device for an aerial working platform, which comprises a mast lifting mechanism 1, wherein one side of the mast lifting mechanism 1 is butted with a fly arm mechanism 2, one end of the fly arm mechanism 2 is butted with a working platform assembly 4 through a connecting structure 3, the working platform assembly 4 comprises a platform main part 41, the bottom of the platform main part 41 is butted with two supporting arms 43 through an offset detection assembly 42, the top of the platform main part 41 is provided with a telescopic fence, the telescopic fence comprises a plurality of three-stage telescopic support posts 44, the three-stage telescopic support posts 44 are fixedly connected with a fence main part 45 at the top of the platform main part 41, the fence main part 45 is in transmission connection with the platform main part 41 through a three-stage telescopic mechanism 48, the side walls of the three-stage telescopic support posts 44 are fixedly connected with a fence frame one 46 and a fence frame two 47, and one side of the two supporting arms 43 are connected with the connecting structure 3;
The offset detection assembly 42 comprises a traversing mechanism 421 and a longitudinal moving mechanism 422, wherein the traversing mechanism 421 is in butt joint with the side walls of the supporting arms 43, the longitudinal moving mechanism 422 is in butt joint with the top of the traversing mechanism 421, the platform main part 41 is fixedly connected with the top of the longitudinal moving mechanism 422, the inner side faces of the two supporting arms 43 are fixedly connected with a fixed plate 423, the top of the fixed plate 423 is fixedly connected with a square static block 424, the side walls of the square static block 424 are movably sleeved with a square movable housing 425, the square movable housing 425 is fixedly connected with the bottom of the platform main part 41, the four sides of the square movable housing 425 are respectively provided with a pressure sensor 426 penetrating through the inside, and the bottom of the fixed plate 423 is fixedly provided with an alarm 427; the pressure sensor 426 is used to trigger the control system to control the operation of the alarm 427, the operation of the mast lift 1 down and the operation of the three stage telescoping mechanism 48 extended.
Referring to fig. 5, the three-stage telescopic support 44 includes a first stage post 441, a second stage post 442, and a third stage post 443, the second stage post 442 is slidably sleeved on a side wall of the first stage post 441, the third stage post 443 is slidably sleeved on a side wall of the second stage post 442, a first limit groove 444 is formed on a side wall of the second stage post 442, a first limit block 445 is fixedly connected to an inner wall of the third stage post 443, the first limit block 445 is slidably sleeved in the first limit groove 444, the first frame 46 is fixedly connected to a side wall of the third stage post 443, the second frame 47 is fixedly connected to a side wall of the second stage post 442, during the extending process of the three-stage telescopic support 44, the first stage post 443 moves upward on a side wall of the second stage post 442 to drive the first frame 46 to move upward, and then the first limit groove 444 slides upward on a side wall of the first stage post 441 under the cooperation of the limit groove 445 and the first limit groove 444, and the first limit groove 47 are driven to move upward in the first frame 47, and the first frame 46 moves upward synchronously during the upward movement of the first frame 47, so that the first frame 46 and the second frame 47 move upward and the second frame 47 are extended during the extending process of the three-stage telescopic support 44 to form a lower body guard rail.
Referring to fig. 5, a second limit groove 446 is formed in the side wall of the first stage column 441, a second limit block 447 is fixedly connected to the inner wall of the second stage column 442, and the second limit block 447 is slidably sleeved in the second limit groove 446, so that the second stage column 442 is prevented from falling off from the side wall of the first stage column 441.
Referring to fig. 6, tertiary telescopic machanism 48 is including one-level sleeve 481, one-level sleeve 481 inside slip has cup jointed second-level sleeve 482, second-level sleeve 482 inside slip has cup jointed tertiary sleeve 483, one-level sleeve 481 top is connected with rail main part 45 through connecting seat one, tertiary sleeve 483 bottom is connected with platform main part 41 through connecting seat two, second-level sleeve 482 just back is provided with groove box one 486 respectively, groove box two 484, groove box one 486, threaded rod one 487 has been cup jointed to groove box two 484 inside activity respectively, threaded rod two 485, connecting block one has been cup jointed to one of the lateral wall screw thread, its connecting block one and tertiary sleeve 483 outer wall connection, groove box two 484 lateral wall screw has cup jointed connecting block two, its connecting block two and one-level sleeve 481 inner wall connection, second-level sleeve 482 side fixed mounting has the bispin to drive mechanism 488, bispin drive mechanism 488 output respectively with two 485, threaded rod one 487 bottom butt joint through bispin drive mechanism during the use, the threaded rod two 485 is rotatory with threaded rod one 487, make one, connecting block two displacement under the thread structure effect, drive three-level sleeve 483 by the inside slip by the second-level sleeve 483, by the connecting block 48 is reached by the three-level telescopic machanism.
Referring to fig. 6 and 7, the dual rotation driving mechanism 488 includes a motor 4885, two driving bevel gears 4882, two driven bevel gears 4883, the inner sides of the two driving bevel gears 4882 are fixedly connected through a transmission rod 4881, the two driving bevel gears 4882 are respectively meshed with the two driven bevel gears 4883, the two driven bevel gears 4883 are respectively connected with the bottom end of a first threaded rod 487 and the bottom end of a second threaded rod 485, the two driving bevel gears 4882 are respectively located on the front surface and the back of a third-stage casing 483, the motor 4885 is fixedly installed on the outer wall of the second-stage casing 482 through a connecting plate 4884, an output shaft of the motor 4885 penetrates through the connecting plate 4884 and is connected with one driving bevel gear 4882, and when in use, the motor 4885 drives one driving bevel gear 4882 to rotate under the connecting effect of the transmission rod 4881, the two driving bevel gears 4882 are simultaneously rotated under the meshing effect, and accordingly the first threaded rod 487 and the second threaded rod 485 are driven to rotate.
Referring to fig. 7, the front and back surfaces of the three-stage casing 483 are provided with vertical through grooves, and the transmission rod 4881 passes through the vertical through grooves and is in sliding sleeve connection in the vertical through grooves, so that the restriction of the downward sliding of the double-rotation driving mechanism 488 to the three-stage casing 483 is avoided.
Referring to fig. 7, two driven bevel gears 4883 are located on the outer sides of two driving bevel gears 4882, and two driven bevel gears 4883 are located on the top of two driving bevel gears 4882, and according to the characteristics of the bevel gears, the two driven bevel gears 4883 can rotate in opposite directions, so that the first connecting block and the second connecting block can displace in opposite directions.
Referring to fig. 8, the traversing mechanism 421 includes two positioning plates 4211 and a movable support 4212, the two positioning plates 4211 are fixedly connected at the top of the bracket 43, the movable support 4212 is slidably sleeved at the top of the bracket 43, the movable support 4212 is located at a gap between the two positioning plates 4211, two ends of the movable support 4212 are respectively connected with the two positioning plates 4211 through a plurality of springs 4214 in a transmission manner, a sliding groove is formed at the top of the movable support 4212, the longitudinal shifting mechanism 422 is slidably sleeved in the sliding groove of the movable support 4212, the platform main member 41 can be laterally shifted through the connection relationship between the movable support 4212 and the bracket 43, the offset distance is limited by the two positioning plates 4211, the initial state of the movable support 4212 can be located at the middle between the two positioning plates 4211 through the arrangement of the springs 4214, and the automatic resetting of the movable support 4212 can be ensured, the longitudinal shifting mechanism 422 can be longitudinally shifted through the connection relationship between the longitudinal shifting mechanism 422 and the movable support 4212, so that the platform main member 41 can be longitudinally shifted.
Referring to fig. 8, a plurality of anti-falling bars 4213 are fixedly connected to the inner sides of the two positioning plates 4211, and the movable support 4212 is slidably sleeved on the side walls of the anti-falling bars 4213, so that falling of the movable support 4212 can be avoided through the arrangement.
Referring to fig. 9, the vertical movement mechanism 422 includes a top connecting plate 4221, two ends of the bottom of the top connecting plate 4221 are fixedly connected with ear blocks 4222, two ear blocks 4222 are located on the outer sides of two supporting arms 43, and the two ear blocks 4222 are in transmission connection with the lateral movement mechanisms 421 on the two supporting arms 43 through a plurality of springs 4223, the vertical movement distance of the vertical movement mechanism 422 can be limited by setting the two ear blocks 4222, so that potential safety hazards caused by large deflection of the platform main part 41 are avoided, the initial state position of the vertical movement mechanism 422 is ensured by setting the springs 4223, and the vertical movement mechanism 422 is convenient to automatically reset after moving.
The working principle of the invention is as follows: in the ascending process of the operation platform assembly 4, the three-stage telescopic mechanism 48 is used for running the telescopic extension height, so that the fence main part 45 ascends to form an upper fence to carry out safety protection on the upper body part of an operator, meanwhile, the three-stage telescopic support posts 44 synchronously telescopic in the ascending process of the fence main part 45, the first fence frame 46 and the second fence frame 47 ascend and increase the distance, the lower fence is formed to carry out safety protection on the lower body part of the operator, the upper body part of the human body collides with foreign objects in the ascending process of the operation platform, the safety protection effect of the operation platform can be improved, and in the operation process, the three-stage telescopic mechanism 48 is retracted to enable the fence main part 45 to descend and reset to avoid interference on the operation process;
In the ascending process of the operation platform, when the telescopic fence collides with an external object, the platform main part 41 can deviate a certain distance along the opposite direction of the collision under the action of the transverse moving mechanism 421 and the longitudinal moving mechanism 422, at the moment, the square movable housing 425 and the square static block 424 are dislocated, the square static block 424 is propped against a pressure sensor 426, the pressure sensor 426 detects the pressure and sends a pressure signal to the equipment control system, the control system controls the alarm 427 to run for safety warning, and meanwhile controls the mast lifting mechanism 1 to run and descend, so that the whole height of the operation platform assembly 4 is lowered, the telescopic fence is prevented from being continuously deformed under pressure, the loss reducing effect is achieved, and meanwhile, the influence of the deformed fence on operators is prevented;
in the operation process, when the equipment shakes, under the action of the transverse moving mechanism 421 and the longitudinal moving mechanism 422, the platform main part 41 deviates a certain distance, so that the pressure sensor 426 triggers the mast lifting mechanism 1 to operate and descend through the control system, the alarm 427 operates to perform safety warning and the telescopic fence operates to ascend, and therefore the equipment can shake when in emergency, and emergency response measures can be made; the alarm 427 is used for reminding an operator, the mast lifting mechanism 1 is used for operating and lowering the height of the operation platform assembly 4, the operator is prevented from falling off and being hurt at the excessive height, and the falling risk of the operator is lowered by lifting the telescopic fence, so that the safety performance of the equipment is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. The present invention is not limited to the above-described embodiments, and the above-described embodiments and descriptions merely illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an aerial working platform safety device, includes mast elevating system (1), mast elevating system (1) one side butt joint has fly arm mechanism (2), fly arm mechanism (2) one end has work platform subassembly (4), its characterized in that through connection structure (3) butt joint:
The operation platform assembly (4) comprises a platform main part (41), two supporting arms (43) are butted at the bottom of the platform main part (41) through an offset detection assembly (42), a telescopic fence is arranged at the top of the platform main part (41), the telescopic fence comprises a plurality of three-stage telescopic support posts (44), the three-stage telescopic support posts (44) are fixedly connected with the top of the platform main part (41), the top ends of the three-stage telescopic support posts (44) are fixedly connected with a fence main part (45), the fence main part (45) is in transmission connection with the platform main part (41) through a three-stage telescopic mechanism (48), a first fence frame (46) and a second fence frame (47) are fixedly connected with the side walls of the three-stage telescopic support posts (44), and one side of each supporting arm (43) is connected with the connecting structure (3);
The deviation detection assembly (42) comprises a transverse moving mechanism (421) and a longitudinal moving mechanism (422), the transverse moving mechanism (421) is in butt joint with the side wall of the supporting arm (43), the longitudinal moving mechanism (422) is in butt joint with the top of the transverse moving mechanism (421), the platform main part (41) is fixedly connected with the top of the longitudinal moving mechanism (422), the inner side faces of the supporting arm (43) are fixedly connected with a fixing plate (423), the top of the fixing plate (423) is fixedly connected with a square static block (424), the side wall of the square static block (424) is movably sleeved with a square movable housing (425), the square movable housing (425) is fixedly connected with the bottom of the platform main part (41), four sides of the square movable housing (425) are respectively provided with a pressure sensor (426) penetrating through the inside, and the bottom of the fixing plate (423) is fixedly provided with an alarm (427). The pressure sensor (426) is used for triggering the control system to control the alarm (427) to operate, the mast lifting mechanism (1) to operate and descend, and the three-stage telescopic mechanism (48) to operate and extend;
The transverse moving mechanism (421) comprises two positioning plates (4211) and a movable support (4212), wherein the two positioning plates (4211) are fixedly connected at the top of a supporting arm (43), the movable support (4212) is in sliding sleeve connection with the top of the supporting arm (43), the movable support (4212) is positioned at the gap between the two positioning plates (4211), two ends of the movable support (4212) are in transmission connection with the two positioning plates (4211) through a plurality of springs (4214), a sliding groove is formed in the top of the movable support (4212), and the longitudinal moving mechanism (422) is in sliding sleeve connection with the sliding groove of the movable support (4212);
the inner side surfaces of the two positioning plates (4211) are fixedly connected with a plurality of anti-falling bars (4213), and the movable support (4212) is sleeved on the side walls of the anti-falling bars (4213) in a sliding manner;
the vertical moving mechanism (422) comprises a top connecting plate (4221), ear blocks (4222) are fixedly connected to two ends of the bottom of the top connecting plate (4221), two ear blocks (4222) are located on the outer side faces of two supporting arms (43), and the two ear blocks (4222) are in transmission connection with the upper transverse moving mechanisms (421) of the two supporting arms (43) through a plurality of springs (4223).
2. An aerial work platform safety device as claimed in claim 1, wherein: the three-stage telescopic support column (44) comprises a first-stage column (441), a second-stage column (442) and a third-stage column (443), wherein the second-stage column (442) is sleeved on the side wall of the first-stage column (441) in a sliding mode, the third-stage column (443) is sleeved on the side wall of the second-stage column (442) in a sliding mode, a first limit groove (444) is formed in the side wall of the second-stage column (442), a first limit block (445) is fixedly connected to the inner wall of the third-stage column (443), the first limit block (445) is sleeved in the first limit groove (444) in a sliding mode, the first column frame (46) is fixedly connected to the side wall of the third-stage column (443), and the second column frame (47) is fixedly connected to the side wall of the second-stage column (442).
3. An aerial work platform safety device as claimed in claim 2, wherein: the limiting groove II (446) is formed in the side wall of the primary column (441), the limiting block II (447) is fixedly connected to the inner wall of the secondary column (442), and the limiting block II (447) is in sliding sleeve connection in the limiting groove II (446).
4. An aerial work platform safety device as claimed in claim 1, wherein: tertiary telescopic machanism (48) are including one-level sleeve shell (481), one-level sleeve shell (481) inside slip has cup jointed second grade sleeve shell (482), second grade sleeve shell (482) inside slip has cup jointed tertiary sleeve shell (483), one-level sleeve shell (481) top is connected with rail main part (45) through connecting seat one, tertiary sleeve (483) bottom is connected with platform main part (41) through connecting seat two, second grade sleeve (482) positive back is provided with groove box one (486) respectively, groove box two (484), threaded rod one (487) and threaded rod two (485) have been cup jointed to inside activity respectively of groove box one (486), groove box two (484), threaded rod one (487) lateral wall screw has cup jointed connecting block one, and its connecting block one and tertiary sleeve (483) outer wall connection, groove box two (484) lateral wall screw cup joints connecting block two, its connecting block two and one-level sleeve (481) inner wall connection, second grade sleeve (482) side fixed mounting has bispin to drive mechanism (488), bispin drive mechanism (488) output end (485) respectively with threaded rod one (487) butt joint.
5. The aerial work platform safety device of claim 4, wherein: the double-rotation driving mechanism comprises a motor (4885), two driving bevel gears (4882) and two driven bevel gears (4883), wherein the inner side faces of the driving bevel gears (4882) are fixedly connected through a transmission rod (4881), the driving bevel gears (4882) are respectively meshed with the two driven bevel gears (4883), the driven bevel gears (4883) are respectively connected with the bottom end of a first threaded rod (487) and the bottom end of a second threaded rod (485), the driving bevel gears (4882) are respectively located on the front face and the back of a third-stage casing (483), the motor (4885) is fixedly installed on the outer wall of the second-stage casing (482) through a connecting plate (4884), and an output shaft of the motor (4885) penetrates through the connecting plate (4884) to be connected with one driving bevel gear (4882).
6. An aerial work platform safety device as claimed in claim 5, wherein: the three-stage casing (483) is characterized in that the front side and the back side of the three-stage casing are respectively provided with a vertical through groove, and the transmission rod (4881) penetrates through the vertical through grooves and is in sliding sleeve connection in the vertical through grooves.
7. An aerial work platform safety device as claimed in claim 5, wherein: the two driven bevel gears (4883) are positioned on the outer sides of the two driving bevel gears (4882), and the two driven bevel gears (4883) are positioned on the tops of the two driving bevel gears (4882).
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| FR3007013B1 (en) * | 2013-06-17 | 2016-09-02 | Haulotte Group | PLATFORM OF LIFT PLATFORM AND LIFT PLATFORM EQUIPPED WITH SUCH A PLATFORM |
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| CN111792592B (en) * | 2020-06-22 | 2021-05-28 | 湖南中联重科智能高空作业机械有限公司 | Anti-extrusion device and aerial work machine |
| CN116477538A (en) * | 2023-03-08 | 2023-07-25 | 安徽众邦金属结构工程有限公司 | Straight arm type aerial work platform capable of finely adjusting height |
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| CN112969658A (en) * | 2018-10-26 | 2021-06-15 | 欧历胜集团 | Weighing system for a work platform of an aerial work platform with a mast |
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