阅读说明：本技术 一种在发生意外时可以对工作人员进行保护的塔吊设备 (Tower crane equipment capable of protecting workers in case of accident ) 是由 张朋 于 2021-01-06 设计创作，主要内容包括：本发明涉及起重机相关领域,尤其是一种在发生意外时可以对工作人员进行保护的塔吊设备,包括箱体,一种在发生意外时可以对工作人员进行保护的塔吊设备,能够实现利用弹射装置实现在塔吊发生倒塌时对操作室箱体弹飞,实现与塔吊架之间脱离,能够实现利用保护装置带动气囊运动对操作腔中工作人员进行保护,能够实现利用传动装置带动螺旋桨运动减慢操作室箱体下降的速度,避免落地时速度过快对操作人员造成伤害,能够实现利用传动装置的运动带动减震杆运动实现减震,避免在下降触地的瞬间震动过大对人体造成伤害,能够实现利用启动装置运动实现电机的自动启动,从而带动其他装置运动实现对人体的保护,保护了工作人员的生命健康。(The invention relates to the related field of cranes, in particular to tower crane equipment capable of protecting workers in case of accidents, which comprises a box body and the tower crane equipment capable of protecting the workers in case of accidents, can realize the ejection of the box body of an operating room when the tower crane collapses by using an ejection device, realize the separation between the box body and a tower hanger, can realize the protection of the workers in an operating cavity by using a protection device to drive an air bag to move, can realize the reduction of the descending speed of the box body of the operating room by using a transmission device to drive a propeller to move, avoids the injury to the operators due to the overhigh speed when the tower crane falls to the ground, can realize the shock absorption by using the motion of the transmission device to drive a shock absorption rod to move, avoids the injury to human bodies due to overlarge shock at the moment of falling to the ground, and can realize the automatic starting of a motor by using, thereby driving other devices to move to realize the protection of the human body and protecting the life health of the working personnel.)

1. A tower crane device capable of protecting workers in accidents comprises a box body and first cavities which are fixedly arranged in the box body in a bilateral symmetry mode, worm shafts are rotatably arranged between the left end wall and the right end wall of each first cavity in a penetrating mode, the worm shafts on the right side are in power connection with a main shaft of a motor, the motor is fixedly arranged on the right end wall of the first cavity on the right side, transmission cavities are fixedly arranged in the first cavities between the first cavities, a first transmission device used for transmission between the worm shafts and a propeller is fixedly arranged on the outer surface of the tail end of the left side of the worm shaft on the right side, a worm is fixedly arranged on the outer surface of the worm shaft in the first cavity, the worm and a worm wheel are in meshing transmission, the worm wheel is fixedly arranged on the outer surface of the tail end of the upper side of the worm shaft, a gear cavity is fixedly arranged in the box body, the outer surface of the tail end of the lower side of the worm wheel shaft in the gear cavity is fixedly provided with a second transmission device for transmission between the worm wheel shaft and the damping rod, the box body at the lower side of the transmission cavity is internally and fixedly provided with an operation cavity for operating tower crane movement by workers in the operation cavity, the box body at one side of the gear cavity far away from the operation cavity is fixedly provided with a damping cavity, the tail end of the lower side of the left end wall and the right end wall of the damping cavity is fixedly provided with a first damping block in a bilateral symmetry mode, the left end wall and the right end wall of the damping cavity at the upper side of the first damping block are fixedly provided with wedge block installation cavities in a bilateral symmetry mode, wedge blocks are arranged in the wedge block installation cavities in a sliding mode, the wedge blocks and the wedge block installation cavities are far away from the end wall at one side of the damping cavity and are, the operation chamber downside the internal fixed decompression piece installation cavity that is provided with of box, fixedly connected with pressure relief spring on the side end wall of decompression piece installation cavity, the terminal fixedly connected with decompression piece of downside of pressure relief spring, the contact between the upside end wall surface of decompression piece and mounting panel, box slidable mounting be in on the side end wall of mounting panel, bilateral symmetry fixed mounting has in the mounting panel and is used for the jettison device that the box launched, the transmission chamber upside the internal fixed upside open-ended second cavity that is provided with of box, decompression piece installation cavity right side the box is installed and is used for the starting drive that the motor started.

2. The tower crane equipment capable of protecting workers in case of accidents according to claim 1, characterized in that: the first transmission device comprises the worm shaft, a first bevel gear is fixedly arranged on the outer surface of the tail end of one side of the worm shaft in the transmission cavity, the first bevel gear is in meshing transmission with a second bevel gear, the second bevel gear is fixedly arranged on the outer surface of a screw rod, the screw rod is rotatably arranged on the lower side end wall of the transmission cavity, the outer surface of the screw rod on the upper side of the second bevel gear is rotatably connected with a nut block, the nut block is slidably arranged in a nut block sliding cavity, the nut block sliding cavity is fixedly arranged in the lower side tail end of a sliding frame, the sliding frame is slidably arranged on the upper side end wall of the transmission cavity in a penetrating manner, the end wall of the nut block sliding cavity, which is far away from the screw rod, is connected with the nut block through a nut block connecting spring, and second brake blocks are fixedly arranged, the terminal slidable mounting that runs through of lead screw upside has the pivot, the pivot both sides the fixed spout that is provided with of bilateral symmetry in the lead screw, slidable mounting has the dog in the spout, the fixed bilateral symmetry of dog is installed the terminal surface of pivot downside, the terminal surface fixed mounting of upside of pivot has the mounting disc, the mounting disc is kept away from pivot one side end wall surface fixed array is installed the screw.

3. The tower crane equipment capable of protecting workers in case of accidents according to claim 1, characterized in that: the second transmission device comprises the worm gear shaft, a gear is fixedly arranged on the outer surface of the tail end of the lower side of the worm gear shaft, the gear is meshed with a meshing groove, a fixed circumference array of the meshing groove is arranged on the end wall of one side, far away from the damping cavity, of a rotary disc, the rotary disc is fixedly arranged on the outer surface of the tail end of one side, far away from the damping cavity, of a rotary disc shaft, the rotary disc shaft is rotatably arranged on the end wall of one side, close to the damping cavity, of the gear cavity in a penetrating manner, a rotary block is fixedly arranged on the outer surface of the tail end of one side, far away from the rotary disc, of the rotary disc shaft, a meshing tooth sliding cavity is fixedly arranged in the rotary block, meshing teeth are slidably arranged in the meshing tooth sliding cavity, the meshing teeth are connected with the bottom wall of the meshing tooth sliding cavity through, the terminal surface fixed mounting of rack downside has the slide, slide slidable mounting is in between the end wall about the shock attenuation chamber, the dead lever is installed to the downside end wall fixed surface array of slide, the dead lever internal fixation is provided with the shock attenuation pole sliding chamber, run through slidable mounting on the shock attenuation pole sliding chamber downside end wall have the shock attenuation pole, the upside end wall surface of shock attenuation pole with connect through damping spring between the downside end wall in shock attenuation pole sliding chamber, damping spring nested install the surface of shock attenuation pole.

4. The tower crane equipment capable of protecting workers in case of accidents according to claim 1, characterized in that: the protection device comprises the worm shaft, a power generation cavity is fixedly arranged in the box body between the transmission cavity and the first cavity, magnets are fixedly and symmetrically arranged on the left end wall and the right end wall of the power generation cavity, a metal conductor is arranged on the outer surface fixed array of the worm shaft in the power generation cavity, the metal conductor cuts a magnetic induction line generated between the magnets to generate electric energy to supply power to the air pump, an air bag cavity is arranged on the end wall of the operation cavity in a fixed array manner, the air pump is fixedly arranged on the end wall of the air bag cavity far away from the end wall of one side of the operation cavity, the air pump is fixedly connected with the safety air bag, the safety air bag is arranged in the air bag cavity in a compressed manner, the air bag cavity is close to the end wall of one side of the operation cavity and is rotatably provided with a stop lever mounting shaft, a baffle is fixedly, the torsion spring is nested and installed on the outer surface of the stop lever installation shaft.

5. The tower crane equipment capable of protecting workers in case of accidents according to claim 1, characterized in that: the ejection device comprises the mounting plate, ejection cavities are fixedly arranged in the mounting plate in a bilateral symmetry manner, fixed blocks are slidably mounted in the ejection cavities, the fixed blocks are fixedly mounted on the outer surface of the end wall of the lower side of the box body in a bilateral symmetry manner, pin grooves are fixedly arranged on the fixed blocks, pins are inserted into the pin grooves in a sliding manner, connecting ropes are fixedly connected onto the end wall of one side of the pins far away from the pressure reducing block, the ends of one side of the connecting ropes far away from the pins are fixedly connected with sliding blocks, the sliding blocks are slidably mounted in the sliding block cavities, the sliding block cavities are fixedly arranged in the mounting plate in a bilateral symmetry manner, in a normal condition, the sliding blocks are tightly pressed between the tower frame on the lower side of the mounting plate and the end wall on the upper side of the sliding block cavities and cannot move, the ejection cavity is far away from one side of the pressure reducing block, and a sliding cavity is fixedly arranged in the mounting plate.

6. The tower crane equipment capable of protecting workers in case of accidents according to claim 1, characterized in that: the starting device comprises a contact rod, the contact rod is installed on the lower side end wall of a contact rod installation cavity in a penetrating and sliding mode, the contact rod installation cavity is fixedly arranged in the box body on the right side of the decompression block installation cavity, the outer surface of the upper side end wall of the contact rod is connected with a support of the lower side end wall of the contact rod installation cavity through a contact rod return spring, the contact rod return spring is installed on the outer surface of the contact rod in a nested mode, a wire rope is fixedly connected to the outer surface of the upper side end wall of the contact rod, the tail end, far away from one side of the contact rod, of the wire rope is fixedly connected with the outer surface of the right side end wall of the starting rod, the starting rod is installed on the left side end wall of a starting cavity in a penetrating and sliding mode, the starting cavity is fixedly arranged in, the actuating spring is nested on the outer surface of the actuating rod.

Technical Field

The invention relates to the related field of cranes, in particular to tower crane equipment capable of protecting workers in case of accidents.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. The application of hoist in our life is more and more extensive, and along with building floor's height is higher and higher, the application of tower crane on the building site is also more and more, and present tower crane can only realize the promotion to the object, can not realize when the unexpected condition of collapsing appears in the tower crane to operating personnel's protection, consequently need set up one kind and can carry out the tower crane equipment of protection when the accident takes place and improve above-mentioned problem to the staff.

Disclosure of Invention

The invention aims to provide tower crane equipment capable of protecting workers in case of accidents, which can overcome the defects in the prior art and improve the practicability of the equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to tower crane equipment capable of protecting workers in case of accidents, which comprises a box body and first cavities which are symmetrically and fixedly arranged in the box body from left to right, a worm shaft is rotatably arranged between the left end wall and the right end wall of each first cavity in a penetrating manner, the right worm shaft is in power connection with a main shaft of a motor, the motor is fixedly arranged on the right end wall of the right first cavity, a transmission cavity is fixedly arranged in each first cavity between the first cavities, a first transmission device for transmission between the worm shaft and a propeller is fixedly arranged on the outer surface of the tail end of the left worm shaft on the right, a worm is fixedly arranged on the outer surface of the worm shaft in the first cavity, the worm and a worm wheel are in meshing transmission, the worm wheel is fixedly arranged on the outer surface of the tail end of the upper side of a worm wheel shaft, and a gear cavity is fixedly arranged in the box body on the lower, the outer surface of the tail end of the lower side of the worm wheel shaft in the gear cavity is fixedly provided with a second transmission device for transmission between the worm wheel shaft and the damping rod, the box body at the lower side of the transmission cavity is internally and fixedly provided with an operation cavity for operating tower crane movement by workers in the operation cavity, the box body at one side of the gear cavity far away from the operation cavity is fixedly provided with a damping cavity, the tail end of the lower side of the left end wall and the right end wall of the damping cavity is fixedly provided with a first damping block in a bilateral symmetry mode, the left end wall and the right end wall of the damping cavity at the upper side of the first damping block are fixedly provided with wedge block installation cavities in a bilateral symmetry mode, wedge blocks are arranged in the wedge block installation cavities in a sliding mode, the wedge blocks and the wedge block installation cavities are far away from the end wall at one side of the damping cavity and are, the operation chamber downside the internal fixed decompression piece installation cavity that is provided with of box, fixedly connected with pressure relief spring on the side end wall of decompression piece installation cavity, the terminal fixedly connected with decompression piece of downside of pressure relief spring, the contact between the upside end wall surface of decompression piece and mounting panel, box slidable mounting be in on the side end wall of mounting panel, bilateral symmetry fixed mounting has in the mounting panel and is used for the jettison device that the box launched, the transmission chamber upside the internal fixed upside open-ended second cavity that is provided with of box, decompression piece installation cavity right side the box is installed and is used for the starting drive that the motor started.

Further, the first transmission device comprises the worm shaft, a first bevel gear is fixedly arranged on the outer surface of the tail end of one side of the worm shaft in the transmission cavity, the first bevel gear and a second bevel gear are in meshing transmission, the second bevel gear is fixedly arranged on the outer surface of a screw rod, the screw rod is rotatably arranged on the end wall of the lower side of the transmission cavity, the outer surface of the screw rod on the upper side of the second bevel gear is rotatably connected with a nut block, the nut block is slidably arranged in a nut block sliding cavity, the nut block sliding cavity is fixedly arranged in the tail end of the lower side of a sliding frame, the sliding frame is slidably arranged on the end wall of the upper side of the transmission cavity in a penetrating manner, the end wall of the nut block sliding cavity, which is far away from the screw rod, is connected with the nut block through a nut block connecting spring, and second brake, the terminal slidable mounting that runs through of lead screw upside has the pivot, the pivot both sides the fixed spout that is provided with of bilateral symmetry in the lead screw, slidable mounting has the dog in the spout, the fixed bilateral symmetry of dog is installed the terminal surface of pivot downside, the terminal surface fixed mounting of upside of pivot has the mounting disc, the mounting disc is kept away from pivot one side end wall surface fixed array is installed the screw.

Further, the second transmission device comprises the worm gear shaft, a gear is fixedly mounted on the outer surface of the tail end of the lower side of the worm gear shaft, the gear is meshed with a meshing groove, a fixed circumference array of the meshing groove is arranged on the end wall of one side, far away from the damping cavity, of the rotary table, the rotary table is fixedly mounted on the outer surface of the tail end of one side, far away from the damping cavity, of the rotary table shaft, the rotary table shaft is rotatably mounted on the end wall of one side, close to the damping cavity, of the gear cavity in a penetrating manner, a rotary block is fixedly mounted on the outer surface of the tail end of one side, far away from the rotary table, of the rotary table shaft, a meshing tooth sliding cavity is fixedly arranged in the rotary block, meshing teeth are slidably mounted in the meshing tooth sliding cavity, the meshing teeth are connected with the bottom wall of the meshing tooth sliding cavity through meshing tooth, the terminal surface fixed mounting of rack downside has the slide, slide slidable mounting is in between the end wall about the shock attenuation chamber, the dead lever is installed to the downside end wall fixed surface array of slide, the dead lever internal fixation is provided with the shock attenuation pole sliding chamber, run through slidable mounting on the shock attenuation pole sliding chamber downside end wall have the shock attenuation pole, the upside end wall surface of shock attenuation pole with connect through damping spring between the downside end wall in shock attenuation pole sliding chamber, damping spring nested install the surface of shock attenuation pole.

Further, the protection device comprises the worm shaft, a power generation cavity is fixedly arranged in the box body between the transmission cavity and the first cavity, magnets are fixedly and symmetrically arranged on the left end wall and the right end wall of the power generation cavity, a metal conductor is arranged on the outer surface fixing array of the worm shaft in the power generation cavity, the metal conductor cuts a magnetic induction line generated between the magnets to generate electric energy to supply power to the air pump, an air bag cavity is arranged on the end wall of the operation cavity in a fixed array manner, the air pump is fixedly arranged on the end wall of the air bag cavity far away from the end wall of one side of the operation cavity, the air pump is fixedly connected with the safety air bag, the safety air bag is compressed and arranged in the air bag cavity, the air bag cavity is close to the end wall of one side of the operation cavity and is rotatably provided with a stop lever installation shaft, a baffle is fixedly arranged on the outer, the torsion spring is nested and installed on the outer surface of the stop lever installation shaft.

Further, the ejection device comprises the mounting plate, ejection cavities are fixedly arranged in the mounting plate in a bilateral symmetry manner, fixed blocks are arranged in the ejection cavities in a sliding manner, the fixed blocks are fixedly arranged on the outer surface of the end wall of the lower side of the box body in the bilateral symmetry manner, pin grooves are fixedly arranged on the fixed blocks, pins are inserted into the pin grooves in a sliding manner, connecting wire ropes are fixedly connected onto the end wall of one side of the pins far away from the pressure reducing block, the tail ends of one side of the connecting wire ropes far away from the pins are fixedly connected with the sliding blocks, the sliding blocks are arranged in the sliding block cavities in a sliding manner, the sliding blocks are fixedly arranged in the mounting plate in the bilateral symmetry manner, in a normal condition, the sliding blocks are pressed between the tower frame on the lower side of the mounting plate and the end wall on the upper side of the sliding, the ejection cavity is far away from one side of the pressure reducing block, and a sliding cavity is fixedly arranged in the mounting plate.

Further, the starting device comprises a contact rod, the contact rod is installed on the lower side end wall of a contact rod installation cavity in a penetrating and sliding mode, the contact rod installation cavity is fixedly arranged in the box body on the right side of the decompression block installation cavity, the outer surface of the upper side end wall of the contact rod is connected with the support of the lower side end wall of the contact rod installation cavity through a contact rod return spring, the contact rod return spring is installed on the outer surface of the contact rod in a nested mode, the outer surface of the upper side end wall of the contact rod is fixedly connected with a wire rope, the end, far away from the contact rod, of the wire rope is fixedly connected with the outer surface of the right side end wall of the starting rod, the starting rod is installed on the left side end wall of a starting cavity in a penetrating and sliding mode, the starting cavity is fixedly arranged in the box body on the right, the actuating spring is nested on the outer surface of the actuating rod.

The invention has the beneficial effects that: the utility model provides a tower crane equipment that can protect staff when meeting accident, can realize utilizing ejection device to realize flying to the control room box bullet when the tower crane takes place to collapse, realize breaking away from between the tower gallows, can realize utilizing protection device to drive the gasbag motion and protect staff in the operation chamber, can realize utilizing transmission to drive the speed that the screw motion slows down the control room box and descends, speed is too fast when avoiding falling to the ground causes the injury to operating personnel, can realize utilizing transmission's motion to drive the shock attenuation pole motion and realize the shock attenuation, avoid falling to touch to the ground vibrations in the twinkling of an eye and excessively cause the injury to the human body, can realize utilizing the automatic start-up of starting drive motion realization motor, thereby drive other device motion and realize the protection to the human body, staff's life health has been protected.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of a tower crane device capable of protecting workers in case of accidents.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is an enlarged schematic view of C in fig. 1.

Fig. 5 is an enlarged schematic view of D in fig. 1.

Fig. 6 is an enlarged schematic view of E in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

With reference to fig. 1-6, a tower crane device capable of protecting workers during accidents comprises a box body 11 and first cavities 12 symmetrically arranged in the box body 11, wherein worm shafts 18 are rotatably arranged between the left end wall and the right end wall of the first cavity 12 in a penetrating manner, the worm shafts 18 on the right side are in power connection with a main shaft of a motor 13, the motor 13 is fixedly arranged on the right end wall of the first cavity 12 on the right side, transmission cavities 22 are fixedly arranged in the first cavity 12 between the first cavity 12, a first transmission device 100 for transmission between the worm shafts 18 and a propeller 20 is fixedly arranged on the outer surface of the tail end of the left side of the worm shaft 18 on the right side, a worm 55 is fixedly arranged on the outer surface of the worm shaft 18 in the first cavity 12, and the worm 55 and a worm wheel 56 are in a meshing transmission manner, worm wheel 56 fixed mounting is at the terminal surface of upside of worm-wheel shaft 30, first cavity 12 downside the box 11 internal fixation is provided with gear chamber 51, in gear chamber 51 the terminal surface fixed mounting of downside of worm-wheel shaft 30 has and is used for driven second transmission 101 between worm-wheel shaft 30 and shock attenuation pole 78, the transmission chamber 22 downside the box 11 internal fixation is provided with operation chamber 35, be used for staff's operation tower crane motion in the operation chamber 35, gear chamber 51 keeps away from operation chamber 35 one side the box 11 is fixed and is provided with shock attenuation chamber 32, the terminal bilateral symmetry fixed mounting of shock attenuation chamber 32 left and right side end wall downside has brake block one 82, brake block one 82 upside the fixed wedge installation chamber 76 that is provided with of bilateral symmetry on the end wall about shock attenuation chamber 32, slidable mounting has wedge 75 in the wedge installation chamber 76, the wedge block 75 and the wedge block installation cavity 76 are connected through a wedge block connecting spring 77 between the end wall on one side of the damping cavity 32, a protection device 102 for protecting workers in the operation cavity 35 is arranged on the end wall of the operation cavity 35 in a fixed array mode, a pressure reducing block installation cavity 46 is fixedly arranged in the box body 11 on the lower side of the operation cavity 35, a pressure reducing spring 47 is fixedly connected on the end wall on the upper side of the pressure reducing block installation cavity 46, a pressure reducing block 45 is fixedly connected at the tail end of the lower side of the pressure reducing spring 47, the pressure reducing block 45 is in contact with the outer surface of the end wall on the upper side of the installation plate 83, the box body 11 is slidably arranged on the end wall on the installation plate 83, ejection devices 103 for ejecting the box body 11 are fixedly arranged in the bilateral symmetry mode in the installation plate 83, and an upper side open-sided second cavity 21, the box body 11 on the right side of the decompression block mounting cavity 46 is provided with a starting device 104 for starting the motor 13.

Advantageously, the first transmission 100 comprises the worm shaft 18, a bevel gear wheel 71 is fixedly mounted on the outer surface of one side end of the worm shaft 18 in the transmission cavity 22, the bevel gear wheel 71 and a bevel gear wheel 61 are in mesh transmission, the bevel gear wheel 61 is fixedly mounted on the outer surface of a screw 67, the screw 67 is rotatably mounted on the lower side end wall of the transmission cavity 22, a nut block 63 is rotatably connected on the outer surface of the screw 67 on the upper side of the bevel gear wheel 61, the nut block 63 is slidably mounted in a nut block sliding cavity 70, the nut block sliding cavities 70 are fixedly arranged in an array in the lower side end of a sliding frame 68, the sliding frame 68 is slidably mounted on the upper side end wall of the transmission cavity 22 in a penetrating manner, and the end wall of the nut block sliding cavity 70 far away from the screw 67 is connected with the nut block 63 through a nut block connecting spring 62, carriage 68 terminal surface bilateral symmetry fixed mounting in downside has brake block two 69, the terminal slidable mounting that runs through of lead screw 67 upside has pivot 24, 24 both sides of pivot the fixed spout 66 that is provided with of bilateral symmetry in the lead screw 67, slidable mounting has dog 65 in the spout 66, the fixed bilateral symmetry of dog 65 is installed the terminal surface of 24 downside of pivot, the terminal surface fixed mounting in upside of pivot 24 has mounting disc 23, mounting disc 23 is kept away from pivot 24 a side end wall surface fixed array installs screw 20.

Advantageously, the second transmission device 101 includes the worm wheel shaft 30, a gear 54 is fixedly mounted on an outer surface of a lower end of the worm wheel shaft 30, the gear 54 is engaged with the engaging groove 52, a fixed circumferential array of the engaging groove 52 is disposed on an end wall of a side of the rotary plate 53 away from the shock absorbing cavity 32, the rotary plate 53 is fixedly mounted on an outer surface of a side end of the rotary plate shaft 34 in the gear cavity 51, the rotary plate shaft 34 is rotatably mounted on an end wall of a side of the gear cavity 51 close to the shock absorbing cavity 32, a rotary block 57 is fixedly mounted on an outer surface of a side of the rotary plate shaft 34 away from the rotary plate 53, an engaging tooth sliding cavity 60 is disposed on an inner fixed array of the rotary block 57, an engaging tooth 58 is slidably mounted in the engaging tooth sliding cavity 60, the engaging tooth 58 is connected with a bottom wall of the engaging tooth sliding cavity 60 through an engaging, the meshing transmission between meshing tooth 58 and the rack 31, rack 31 slidable mounting is in on the upside end wall of shock attenuation chamber 32, the terminal fixed surface of rack 31 downside installs slide 33, slide 33 slidable mounting is in between the left and right end wall of shock attenuation chamber 32, the dead lever 74 is installed to the downside end wall fixed surface array of slide 33, the dead lever 74 internal fixation is provided with shock attenuation pole sliding chamber 73, run through slidable mounting on the shock attenuation pole sliding chamber 73 downside end wall have shock attenuation pole 78, the upside end wall surface of shock attenuation pole 78 with connect through damping spring 72 between the downside end wall of shock attenuation pole sliding chamber 73, damping spring 72 nested install the surface of shock attenuation pole 78.

Beneficially, the protection device 102 includes the worm shaft 18, the transmission cavity 22 and the first cavity 12 are fixed in the box 11 and provided with a power generation cavity 26, magnets 19 are symmetrically installed on the left end wall and the right end wall of the power generation cavity 26, a metal conductor 25 is installed in the power generation cavity 26 in an outer surface fixed array of the worm shaft 18, the metal conductor 25 cuts a magnetic induction line generated between the magnets 19 to generate electric energy to power the air pump 29, an air bag cavity 27 is installed on the end wall of the operation cavity 35 in a fixed array, the air pump 29 is fixedly installed on the end wall of the side, far away from the operation cavity 35, of the air bag cavity 27, the air pump 29 is fixedly connected with the air bag 28, the air bag 28 is installed in the air bag cavity 27 in a compressed manner, a stopper rod installation shaft 81 is installed on the end wall of the side of the operation cavity 35 in a counter-rotating manner, the outer fixed surface of shelves pole installation axle 81 has baffle 79, baffle 79 with connect through torsional spring 80 between the gasbag chamber 27 end wall, torsional spring 80 nested install the surface of shelves pole installation axle 81.

Advantageously, the ejection device 103 comprises the mounting plate 83, an ejection cavity 43 is fixedly arranged in the mounting plate 83 in a bilateral symmetry manner, a fixed block 84 is slidably arranged in the ejection cavity 43, the fixed block 84 is fixedly arranged in the outer surface of the lower end wall of the box body 11 in a bilateral symmetry manner, a latch groove 44 is fixedly arranged on the fixed block 84, a latch 41 is slidably inserted in the latch groove 44, a connecting wire rope 37 is fixedly connected to the end wall of one side of the latch 41 away from the decompression block 45, the end of one side of the connecting wire rope 37 away from the latch 41 is fixedly connected with a slide block 40, the slide block 40 is slidably arranged in a slide block cavity 38, the slide block cavity 38 is fixedly arranged in the mounting plate 83 in a bilateral symmetry manner, and the slide block 40 is normally pressed and immovably by the tower on the lower side of the mounting plate 83 and the upper, the end wall of the side, away from the ejection cavity 43, of the slider cavity 38 is connected with the slider 40 through a slider connecting spring 39, and a sliding cavity 36 is fixedly arranged in the mounting plate 83 on the side, away from the decompression block 45, of the ejection cavity 43.

Advantageously, the actuating device 104 includes a contact rod 48, the contact rod 48 is slidably mounted through a lower end wall of a contact rod mounting cavity 49, the contact rod mounting cavity 49 is fixedly disposed in the casing 11 at the right side of the pressure reducing block mounting cavity 46, an outer surface of an upper end wall of the contact rod 48 is connected with a bracket of the lower end wall of the contact rod mounting cavity 49 through a contact rod return spring 50, the contact rod return spring 50 is nested in an outer surface of the contact rod 48, an outer surface of an upper end wall of the contact rod 48 is fixedly connected with a wire 15, a side end of the wire 15 away from the contact rod 48 is fixedly connected with an outer surface of a right end wall of an actuating rod 16, the actuating rod 16 is slidably mounted through a left end wall of an actuating cavity 14, the actuating cavity 14 is fixedly disposed in the casing 11 at the right side of the motor 13, and an outer surface of a right end wall of the actuating rod 16 is fixedly connected with an outer surface And the starting spring 17 is nested and arranged on the outer surface of the starting rod 16.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

In the initial state: the decompression spring 47 is compressed, the eject spring 42 is compressed, the latch 41 is inserted into the latch groove 44, the slider link spring 39 is extended, the link cord 37 is loosened, the cord 15 is tightened, the contact lever return spring 50 is extended, and the activation spring 17 is extended.

Sequence of mechanical actions of the whole device:

when the equipment of the invention works, when the tower crane is in unexpected conditions such as unexpected collapse, the slide block 40 is loosened, the slide block 40 is driven to move due to the action of the slide block connecting spring 39, so that the connecting wire rope 37 is tightened, the bolt 41 is driven to slide out of the bolt groove 44 and enter the sliding cavity 36, and the fixed block 84 is driven to move upwards due to the action of the ejection spring 42, so that the box body 11 is ejected out of contact with the mounting plate 83.

The contact between the box body 11 and the mounting plate 83 is broken, the contact rod 48 is driven to move downwards due to the action of the contact rod return spring 50, so that the wire rope 15 is loosened, and the starting rod 16 moves rightwards due to the action of the starting spring 17 to be contacted by the motor 13, so that the motor 13 is started.

The motor 13 is started to drive the worm shaft 18 to rotate, so that the bevel gear I71 rotates, the bevel gear I71 is meshed with the bevel gear II 61 to drive the screw rod 67 to rotate, the screw rod 67 is rotationally connected with the nut block 63 to drive the sliding frame 68 to move upwards, so that the rotating shaft 24 moves upwards, so that the propeller 20 moves upwards, the rotating shaft 24 moves upwards, so that the stop block 65 moves upwards, when the stop block 65 moves upwards to be in contact with the upper side end wall of the sliding groove 66, the brake block II 69 moves upwards to be in contact with the upper side end wall of the transmission cavity 22, the sliding frame 68 does not move upwards any more, so that the nut block 63 reciprocates in the nut block sliding cavity 70, and the screw rod 67 rotates, thereby rotating the rotating shaft 24, so that the mounting plate 23 is rotated, and the propeller 20 is rotated to generate buoyancy to slow down the falling speed of the box 11.

Worm axle 18 rotates, thereby drives metallic conductor 25 rotates the cutting production the magnetic induction line that produces between the magnet 19 produces the electric current and gives air pump 29 supplies power, air pump 29 starts, thereby gives inflate among the air bag 28, thereby make air bag 28 inflation motion goes out outside the gasbag chamber 27, air bag 28 with baffle 79 contact, thereby drive baffle 79 rotates, thereby make shelves pole installation axle 81 rotates, thereby makes torsional spring 80 moves, parcel staff after the air bag 28 inflation produces the injury to the staff when preventing to fall and ground contact.

The worm shaft 18 rotates to rotate the worm 55, the worm 55 and the worm wheel 56 are in meshing transmission, the worm wheel shaft 30 is rotated, the gear 54 and the meshing groove 52 are in meshing transmission, the rotary disc 53 is rotated, the rotary disc shaft 34 is rotated, the rotary block 57 is rotated, the meshing teeth 58 are rotated, the meshing transmission between the meshing teeth 58 and the rack 31 is in meshing transmission, the sliding plate 33 is moved downwards, the fixing rod 74 is moved downwards, the damping rod 78 is moved downwards, when the sliding plate 33 is moved downwards to be in contact with the wedge block 75, the wedge block 75 is moved into the wedge block mounting cavity 76, and the wedge block connecting spring 77 is compressed, when the sliding plate 33 moves downwards to contact with the shock absorbing spring 72, the sliding plate 33 does not move downwards any more, so that the engaging teeth 58 reciprocate in the engaging teeth sliding cavities 60, and the wedge block 75 moves out of the wedge block mounting cavity 76 to limit the sliding plate 33 due to the action of the wedge block connecting spring 77, so that the sliding plate 33 is prevented from moving upwards when the shock absorbing rod 78 contacts with the ground.

When shock attenuation pole 78 is during with ground contact, the whole downstream of box 11, thereby make damping spring 72 is tensile, and is right the speed of box 11 slows down and prevents produce great vibrations when falling with ground contact and cause the injury to the staff, because pressure reducing spring 47's effect, thereby make pressure reducing piece 45 moves out in the pressure reducing piece installation cavity 46, pressure reducing piece 45 contacts with ground, drives pressure reducing spring 47 compression carries out the secondary shock attenuation, the protection staff.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.