Sliding rail type moving platform for building tower crane

Abstract

The invention discloses a sliding rail type moving platform for a building tower crane, and relates to the technical field of sliding rail type moving platforms, the sliding rail type moving platform comprises a tower crane main body, moving equipment and a plurality of fixing parts, the fixing parts are fixedly connected with the moving equipment, two sliding rails are fixedly installed on the side edge of the tower crane main body, two supporting shafts are fixedly installed on each fixing part, and the sliding rails are fixedly connected with the moving equipment. And rolling hubs are rotationally mounted on the supporting shafts correspondingly, and the rolling hubs are slidably mounted in the corresponding sliding rails correspondingly. The tower crane has the advantages that if the tower crane body shakes, the contact pressure between the two opposite sides of the rolling hub and the sliding rails can be balanced through cooperation of the pushing mechanism, the extrusion mechanism and the pressure adjusting mechanism, so that the stability and safety in the process that a mobile device is stressed to drive a worker to ascend and descend can be improved, and the working efficiency is improved. Meanwhile, if the mobile equipment is stalled and ascends and descends, the moving speed of the mobile equipment can be slowed down to a certain extent through the speed adjusting assembly, and the safety of the mobile equipment in the ascending and descending process is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of slide rail type mobile platforms, and in particular to a slide rail type mobile platform used for a building tower crane. Background Art

[0002] With the continuous development of the construction industry, the height and scale of buildings are constantly increasing, and the demand for high-altitude transportation and precise positioning of construction materials is also increasing. Construction tower cranes are widely used in the existing construction industry due to their powerful lifting capacity, high space utilization and precise lifting functions. At the same time, in order to improve the convenience and efficiency of workers getting on and off the construction tower cranes, lifting devices and mobile platforms are usually added to the existing construction tower cranes. Through the cooperation of the two, the convenience of workers getting on and off the construction tower cranes is improved; At the same time, in order to ensure the stability of the mobile equipment during the lifting and lowering process of the workers, slide rails and rollers are usually added between the existing construction tower crane and the mobile equipment. However, if the construction tower crane is shaken by factors such as wind, it is easy to increase the pressure on one side of the contact between the slide rail and the roller. If the contact pressure between the roller on this side and the slide rail is large, or continues to increase, it is easy to cause the risk of jamming and vibration of the mobile equipment during the lifting process, reducing the stability and safety of the mobile equipment during the lifting and lowering of the workers on the tower crane body 1. For this reason, we propose a slide rail mobile platform for construction tower cranes to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to solve the problems raised in the background technology and to propose a slide rail type mobile platform for a building tower crane.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A slide rail type mobile platform for a building tower crane, comprising a tower crane body, a mobile device, and a plurality of fixings, wherein the fixings are all fixedly connected to the mobile device, two slide rails are fixedly installed on the side of the tower crane body, two support shafts are fixedly installed on the fixings, rollers are rotatably installed on the support shafts, and the rollers are slidably installed in the corresponding slide rails, an adjustment component is commonly arranged between the rollers for balancing the friction between the opposite sides of the rollers and the corresponding slide rails, and an air adjustment component is commonly arranged between the rollers; The adjustment assembly comprises support frames respectively fixedly mounted on support shafts, two rotating shafts are rotatably mounted on the support frames, roller bodies are fixedly mounted on the rotating shafts, a pushing mechanism is commonly mounted between the rotating shafts, and a squeezing mechanism is commonly mounted between the support shafts; The air regulating assembly includes two air bags fixedly mounted on the sides of the roller respectively, and the right air bags are sealed and penetrated and slidably mounted on the corresponding support shafts, and a pressure regulating mechanism is installed between the support shafts for adjusting the air pressure of the air bags.

[0005] In the above-mentioned slide rail type mobile platform for building tower crane, the pushing mechanism comprises discs respectively fixedly mounted on the rotating shafts, and the discs are provided with placement grooves evenly distributed in an annular shape; A spring telescopic rod is fixedly installed on the placement groove, a limit frame is fixedly installed on one end of the spring telescopic rod, a cylinder is slidably installed on the limit frame, an arc plate is fixedly installed on one side of the cylinder, a limit disk matched with the corresponding arc plate is rotatably installed on the rotating shaft, and a limit component is installed between the disks.

[0006] In the above-mentioned slide rail type mobile platform for building tower cranes, the limiting component includes a plurality of slide grooves respectively opened on the disc, and the slide grooves are all connected with the corresponding placement grooves, and sliding blocks are slidably installed on the slide grooves, and the sliding blocks are fixedly connected with the corresponding limiting frames.

[0007] In the above-mentioned sliding rail type mobile platform for building tower cranes, the extrusion mechanism includes two limit members respectively fixedly mounted on the support shafts, each of the limit members has a rod body passing through and slidably mounted thereon, each of the rod bodies has a connecting rod fixedly mounted thereon, each of the connecting rods has a sliding plate fixedly mounted thereon that matches the corresponding arc-shaped plate, and a pressing component is commonly mounted between the connecting rods.

[0008] In the above-mentioned sliding rail type mobile platform for building tower cranes, the pressure components include extrusion plates respectively fixedly installed on one end of the rod body, a limiting groove is provided on the support shaft, a sealing plate is fixedly installed on the other end of the rod body, and the sealing plate is sealingly slidably installed on the corresponding limiting groove.

[0009] In the above-mentioned sliding rail type mobile platform for building tower cranes, the pressure regulating mechanism includes two limit grooves respectively opened on the supporting shaft, and the two limit grooves are connected with the corresponding one limit grooves, and the supporting shaft is provided with a square opening connected with the corresponding two limit grooves, and two pistons are sealed and slidably installed on the two limit grooves, and a shielding component is installed between the two limit grooves.

[0010] In the above-mentioned slide rail type mobile platform for building tower crane, the shielding component includes two baffles respectively fixedly mounted on the second limiting groove, and an air pipe is fixedly connected between the two corresponding baffles.

[0011] In the above-mentioned slide rail type mobile platform for building tower cranes, a speed regulating assembly is commonly arranged between the support shafts, and the speed regulating assembly includes air vents respectively opened on the support shafts, and air valves are installed on the air vents, and the air valves are fixedly connected with air ducts, and the air ducts are sealed and passed through and fixedly installed on the corresponding support shafts, and one end of the air ducts is sealed and passed through and fixedly installed on the corresponding air supply pipes, and one end of the air ducts is fixedly connected with multiple exhaust pipes.

[0012] In the above-mentioned slide rail type mobile platform for a building tower crane, a mobile device is fixedly mounted between the fixing parts.

[0013] Compared with the prior art, the present invention has the following advantages: 1: In the present invention, if the tower crane body shakes, causing the contact pressure between one side of the roller and the corresponding slide rail to increase, and driving the roller body on this side to rotate, the contact pressure between the opposite side of the roller and the corresponding slide rail can be adaptively increased through the cooperation of the pushing mechanism and the extruding mechanism, so as to achieve the effect of balancing the contact pressure between the opposite sides of the roller and the slide rail, which helps to improve the stability and safety of the mobile equipment when driving the staff to lift.

[0014] 2: In the present invention, if the contact pressure between the slide rail and the airbag on one side increases due to the shaking of the tower crane body, the pressure regulating mechanism can be used to increase the gas pressure inside the airbag on the opposite side, thereby increasing the contact pressure between the airbag on the opposite side and the slide rail. This can achieve the effect of balancing the contact pressures between the two airbags, that is, the contact pressures between the opposite sides of the roller and the slide rail, which helps to further improve the stability and safety of the mobile equipment during the lifting process of the staff driven by the force.

[0015] 3: When the mobile device stalls and is lifted or lowered, the present invention can increase the friction force between the surrounding of the roller and the corresponding slide rail by cooperating with the speed adjustment component and the corresponding two rollers and the airbag. At this time, the sum of the friction resistance between the multiple rollers and the two slide rails can slow down the moving speed of the mobile device to a certain extent, further improving the safety of the mobile device during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a slide rail type mobile platform for a building tower crane proposed by the present invention; Figure 2 for Figure 1 Exploded diagram of the mobile equipment and two slide rails; Figure 3 for Figure 2 A top view of the middle slide rail; Figure 4 for Figure 3 A three-dimensional schematic diagram of a cross-section of the middle slide rail; Figure 5 Figure 4 A schematic cross-sectional view of the middle roller hub; Figure 6 for Figure 5 Schematic diagram of the structure after the middle roller hub rotates a certain angle; Figure 7 for Figure 6 A schematic diagram of the structure of the internal components of the middle roller hub; Figure 8 for Figure 7 The structural diagram of the middle regulating component; Fig. 9 for Figure 8 The structural diagram of the middle push mechanism; Fig.10 for Fig. 9 A schematic diagram of the structure of part A in the middle; Fig.11 for Figure 4 A cross-sectional view of the middle roller hub after it rotates a certain angle; Fig.12 for Fig.11 A schematic diagram of the structure of part B in the middle; Fig.13 for Fig.12 Schematic diagram of the structure of the central air conditioning assembly; Fig.14 for Fig.13 Structural diagram of the middle pressure regulating mechanism; Fig.15 for Fig.14 A schematic diagram of the structure enlargement of the middle C part; Fig.16 for Fig.15 The structural diagram of the middle speed regulating component; Fig.17 for Fig.16 A schematic diagram of the structure of the internal components of the middle support shaft; Fig.18 for Fig.17 Schematic diagram of the enlarged structure of part D.

[0017] In the figure: 1. Tower crane body; 2. Mobile equipment; 3. Slide rail; 4. Fixing parts; 5. Support shaft; 6. Roller hub; 7. Adjustment assembly; 71. Support frame; 72. Rotating shaft; 73. Roller body; 74. Placement slot; 75. Limiting plate; 76. Disc; 77. Limiting piece; 78. Rod body; 79. Extrusion plate; 710. Sealing plate; 711. Push plate; 712. Connecting rod; 713. Spring telescopic rod; 714. Limiting frame; 715. Cylinder; 716. Arc plate; 717. Slide slot; 718. Sliding block; 719. Limiting slot 1; 8. Gas regulating assembly; 81. Air bag; 82. Second limiting groove; 83. Piston; 84. Baffle; 85. Gas pipe; 86. Square opening; 9. Speed ​​regulating assembly; 91. Air valve; 92. Air guide pipe; 93. Exhaust pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Reference Figure 1-Figure 18 A slide rail mobile platform for building tower cranes includes a tower crane body 1, a mobile device 2, and a plurality of fixing members 4, and the fixing members 4 are fixedly connected to the mobile device 2. Two slide rails 3 are fixedly installed on the side of the tower crane body 1, and two support shafts 5 are fixedly installed on the fixing members 4. Rollers 6 are rotatably installed on the support shafts 5, and the rollers 6 are slidably installed in the corresponding slide rails 3. Adjustment components 7 are commonly arranged between the rollers 6 for balancing the friction between the opposite sides of the rollers 6 and the corresponding slide rails 3. Air adjustment components 8 are commonly arranged between the rollers 6.

[0020] Attachment of the present invention Figure 1 The tower crane body 1 shown in FIG. 1 is a schematic diagram of the partial structure of an existing building tower crane.

[0021] When the staff needs to go up or down the tower crane body 1, the mobile device 2 can cooperate with the existing lifting device (such as the vertical lifting driving force formed by the cooperation of the driving motor, the hoist, and the traction rope) to drive the staff to automatically go up and down. For example, when the staff needs to reach the top of the building tower crane, at this time, the door body on the mobile device 2 is opened (from the Figure 1 As can be seen in the figure, after the staff stands firmly inside the mobile device 2 and closes the door, the existing lifting device can be started to drive the mobile device 2 to drive the staff to move upward. When the mobile device 2 moves to the top of the building tower crane, the operation of the lifting device is stopped at this time, and the staff can open the door on the side of the mobile device 2 to enter the operating table provided on the top of the tower crane body 1.

[0022] During the operation of the existing lifting device, when the mobile device 2 is driven to lift the workers, the movement direction of the mobile device 2 can be limited by the cooperation of multiple rollers 6 and two slide rails 3, ensuring that the mobile device 2 always reciprocates and lifts in the vertical direction, which can help improve the stability of the mobile device 2 in driving the workers to move up and down.

[0023] Reference Figure 1-Figure 12 The adjustment assembly 7 includes support frames 71 respectively fixedly mounted on the support shafts 5, two rotating shafts 72 are rotatably mounted on the support frames 71, roller bodies 73 are fixedly mounted on the rotating shafts 72, a pushing mechanism is commonly installed between the rotating shafts 72, and an extrusion mechanism is commonly installed between the support shafts 5.

[0024] The inner walls of the two slide rails 3 and the inner and outer walls of the multiple rollers 6, as well as the multiple roller bodies 73 are all made of hard materials, such as chrome-plated carbon steel and other hard materials with good wear resistance, and are set in the initial state. The roller bodies 73 are in contact with the inner walls of the corresponding rollers 6, and the friction between the two is relatively small. When the existing lifting device is running to drive the moving equipment 2 to move up and down, the roller 6 rolls and displaces inside the corresponding slide rail 3. At this time, it is hindered by the static friction between the roller 6 and the corresponding roller body 73, and the roller body 73 will not rotate with the corresponding roller 6.

[0025] In the actual operation of the tower crane, when the tower crane body 1 is affected by external factors such as wind and shakes, a force that is not perpendicular to the slide rail 3 will be formed. According to the force decomposition principle, this force can be decomposed into two components, one is the component perpendicular to the direction of the slide rail 3, and the other is the component along the direction of the slide rail 3. Among them, the component perpendicular to the slide rail 3 will affect the positive pressure between the roller 6 and the corresponding slide rail 3, causing it to change. For example, when the tower crane body 1 shakes to one side, the positive pressure between the roller 6 and the slide rail 3 on that side will increase, thereby increasing the contact pressure between the roller 6 and the slide rail 3 on that side; When the contact pressure between one side of the roller 6 and the corresponding slide rail 3 increases, the friction between the side of the roller 6 and the slide rail 3 will increase accordingly. When the contact pressure between the two is too large, that is, the friction is too large, it will easily cause the mobile equipment 2 to get stuck, vibrate, and other risks during the lifting process, reducing the stability and safety of the mobile equipment 2 in the process of driving the staff to move up and down.

[0026] like Figure 5 In the direction shown, if the tower crane body 1 swings to the right due to factors such as wind force, the two slide rails 3 will also swing to the right. When the contact pressure between the left side of the roller 6 and the inner wall of the slide rail 3 continues to increase, due to the relative movement trend between the inner wall of the roller 6 and the left roller body 73, the friction between the two will also increase accordingly. The increased friction will apply a tangential force to the roller body 73, thereby driving the side roller body 73 to drive the corresponding rotating shaft 72 to rotate.

[0027] Reference Figure 1-Figure 12 The pushing mechanism includes disks 76 respectively fixedly mounted on the rotating shafts 72, and the disks 76 are provided with placement grooves 74 evenly distributed in an annular shape (drawn but not marked in the figure, from Fig.10 As can be seen in the figure, a spring telescopic rod 713 is fixedly installed on the placement groove 74, a limit frame 714 is fixedly installed on one end of the spring telescopic rod 713, a cylinder 715 is slidably installed on the limit frame 714, an arc plate 716 is fixedly installed on one side of the cylinder 715, a limit disk 75 matched with the corresponding arc plate 76 is rotatably installed on the rotating shaft 72, and a limit component is installed between the disks 716.

[0028] The limiting component includes a plurality of slide grooves 717 respectively opened on the disc 76, and the slide grooves 717 are all connected with the corresponding placement grooves 74, and sliding blocks 718 are slidably installed on the slide grooves 717, and the sliding blocks 718 are fixedly connected with the corresponding limit frames 714 (when the limit frame 714 is forced to move from the corresponding placement grooves 74, at this time, the cooperation between the corresponding two sliding blocks 718 and the two slide grooves 717 can help improve the stability of the movement of the limit frame 714, that is, it helps to improve the stability of the limit frame 714 driving the corresponding cylinder 715 and the arc plate 716 to move).

[0029] The extrusion mechanism includes two limit members 77 respectively fixedly mounted on the support shaft 5, each limit member 77 has a rod body 78 penetrating and slidably mounted thereon, each rod body 78 has a connecting rod 712 fixedly mounted thereon, each connecting rod 712 has a push plate 711 fixedly mounted thereon that matches the corresponding arc plate 716, and a pressing component is commonly mounted between the connecting rods 712.

[0030] The pressing member includes an extrusion plate 79 fixedly mounted on one end of the rod body 78, a limiting groove 719 is provided on the support shaft 5, and a sealing plate 710 is fixedly mounted on the other end of the rod body 78 (the one end and the other end can be referred to as Figure 8 , Figure 8 The position of the roller body 73 marked in the figure is one end, and the position of the sealing plate 710 marked in the figure is the other end), and the sealing plate 710 is sealed and slidably installed in the corresponding limit groove 719 (a return spring 1 is fixedly installed between the sealing plate 710 and the side wall of the corresponding limit groove 719).

[0031] Multiple extrusion plates 79 and multiple push plates 711 are all made of elastic materials, such as polyurethane, natural rubber, etc., which can be elastically deformed due to their own elasticity when subjected to extrusion force, and return to their original shapes due to their own elasticity when the pressure disappears. At the same time, multiple extrusion plates 79 and corresponding roller bodies 73 are in a fitted state in the initial state, and multiple push plates 711 and corresponding arc plates 716 are also in a fitted state in the initial state.

[0032] At the same time, a limiting groove 719 is provided, which is located between two adjacent sealing plates 710 and is filled with gas in the initial state.

[0033] When the contact pressure between the left side of the roller 6 and the inner wall of the corresponding slide rail 3 continues to increase, and the roller body 73 and the rotating shaft 72 on the left side are driven to rotate (such as Figure 6 As shown in the direction, the rotating shaft 72 will drive the corresponding disc 76 to rotate together. When the disc 76 drives the multiple cylinders 715 thereon to rotate intermittently to the right side, the movement limit of the corresponding limit disc 75 on the corresponding arc plate 716 disappears (as shown in the direction shown in the figure). Figure 8 In the direction shown), the centrifugal force generated during the rotation of the disc 76 can drive the cylinder 715 to drive the corresponding arc-shaped plate 716 to move to the right side (there is a small friction between the multiple cylinders 715 and the corresponding limit frames 714, and the cylinder 715 on the disc 76 can be thrown out by the small centrifugal force generated by the rotating shaft 72 to drive the corresponding disc 76 to rotate), and the thrust generated by the arc-shaped plate 716 moving to the right side on the corresponding push plate 711 can push the push plate 711 to drive the corresponding connecting rod 712, the rod body 78 and the extrusion plate 79 to move to the right side together; When the push plate 711 is forced to drive the rod body 78, the extrusion plate 79 and the sealing plate 710 to move to the right, the sealing plate 710 can push the right sealing plate 710 and the rod body 78 to move to the right together by squeezing the gas between the adjacent sealing plates 710 (combined with Fig.11 and Fig.12 The right rod body 78 is forced to move to the right, and the extrusion force applied to the right roller body 73 is transmitted to the right side of the roller 6 and the slide rail 3 by squeezing the corresponding extrusion plate 79. In this way, the contact pressure between the right side of the roller 6 and the slide rail 3 can be increased, so as to balance the contact pressure and friction between the left and right sides of the roller 6 and the slide rail 3. This helps to improve the uniformity of the contact pressure between the left and right sides of the roller 6 and the slide rail 3 when the tower crane body 1 shakes, and helps to improve the stability and safety of the mobile equipment 2 in the process of driving the staff up and down.

[0034] At the same time, if Figure 5 In the direction shown, if the contact pressure between the left inner wall of the slide rail 3 and the left side of the roller 6 continues to increase, and the tangential friction force between the inner wall of the roller 6 and the left roller body 73 continues to increase, the roller body 73 is driven by the force to drive the corresponding rotation shaft 72 to increase accordingly. When the centrifugal force generated in the process of the corresponding disk 76 driven by the rotation shaft 72 is greater than the elastic restoring force and static friction force of the corresponding multiple spring telescopic rods 713 themselves, when the disk 76 is driven by the force to rotate the corresponding spring telescopic rod 713 to the right, the corresponding limit frame 714, the cylinder 715, and the arc plate 716 can be driven to move to the right together, thereby effectively increasing the distance that the arc plate 716 is pushed to the right by the corresponding push plate 711, the connecting rod 712, the rod body 78, and the sealing plate 710 (combined with Fig.11 and Fig.12 direction shown); As the distance the left sealing plate 710 moves toward the right gradually increases, the distance the gas squeezes the opposite side, i.e., the distance the right sealing plate 710 moves, also increases accordingly. When the right sealing plate 710 drives the corresponding rod 78 to move toward the right gradually increases (e.g., Fig.10 In the direction shown in the figure), by squeezing the corresponding squeezing plate 79, the squeezing force applied to the right roller body 73 will also increase accordingly, so that when the contact pressure between the left side of the roller 6 and the slide rail 3 continues to increase (such as Figure 5 In the direction shown), by adaptively increasing the squeezing force transmitted by the right roller body 73 to the right side of the roller 6, the contact pressure between the right side of the roller 6 and the slide rail 3 is increased, thereby achieving the effect of adaptively increasing the contact pressure and friction between the right side of the roller 6 and the slide rail 3 according to the size of the increased contact pressure between the left side of the roller 6 and the slide rail 3, which helps to further improve the balance of the contact pressure between the opposite sides of the roller 6 and the slide rail 3 when the roller 6 slides inside the slide rail 3.

[0035] At the same time, when the tower crane body 1 stops shaking, the contact pressure between the left side of the slide rail 3 and the left side of the roller 6 returns to its initial state, that is, the tangential friction between the roller 6 and the left roller body 73 inside it gradually decreases. At this time, under the action of the self-elastic force of the left spring telescopic rod 713, the corresponding limit frame 714, cylinder 715 and arc plate 716 can be driven to move and reset. At the same time, under the action of the self-elastic force of the reset spring 1 installed between the corresponding two sealing plates 710 and the corresponding limit groove 1 719, the two sealing plates 1 710 can be driven to drive the corresponding rod body 78, extrusion plate 79 and push plate 711 to move and reset quickly, so that it is convenient for the subsequent automatic adjustment of the contact pressure between the left and right sides of the roller 6 and the slide rail 3 through the cooperation of the corresponding two extrusion plates 79 and the sealing plate 710.

[0036] At the same time Figure 5 In the direction shown, if the contact pressure between the right side wall of the slide rail 3 and the right side of the roller 6 continues to increase, through the above operation, the contact pressure between the left side of the roller 6 and the slide rail 3 can be adaptively increased to achieve the effect of balancing the contact pressure between the opposite sides of the roller 6 and the slide rail 3, that is, the effect of friction.

[0037] Reference Figure 4 , Figure 11-Figure 15 The air conditioning assembly 8 includes two air bags 81 (such as Fig.13 In the direction shown, the side of the roller 6 here refers to the left and right sides of the roller 6, and the airbags 81 are fixedly installed on both sides, and the right airbags 81 are sealed and penetrated and slidably installed on the corresponding support shaft 5 (the right side here refers to Fig.13 , Fig.13The support shaft 5 is located at the right side in the figure), and a pressure regulating mechanism is installed between the support shafts 5 to adjust the air pressure of the airbag 81.

[0038] The pressure regulating mechanism includes two limit grooves 82 respectively opened on the support shaft 5, and the two limit grooves 82 are connected with the corresponding limit grooves 719, and the support shaft 5 is provided with a square opening 86 connected with the corresponding limit grooves 82, and two pistons 83 are sealed and slidably installed on the two limit grooves 82 (a return spring 2 is fixedly installed between the piston 83 and the corresponding limit groove 82, which is not drawn in the figure), and a shielding component is installed between the two limit grooves 82.

[0039] The shielding component includes two baffles 84 respectively fixedly mounted on the second limiting groove 82 , and an air delivery pipe 85 is fixedly connected between the two corresponding baffles 84 .

[0040] like Fig.13 In the direction shown, a through hole 1 (drawn in the figure but not marked) is opened on the right side of the left airbag 81, and a through hole 2 (drawn in the figure but not marked) is opened on the left side of the roller 6, and the through hole 1 and the corresponding through hole 2 and the limiting groove 2 82 are interconnected, so as to facilitate the mutual flow of gas between the left airbag 81 and the corresponding limiting groove 2 82.

[0041] At the same time, when it is set in the initial state, the inside of the airbag 81 is filled with gas. At this time, the airbag 81 is in a fit state with the inner wall of the corresponding slide rail 3, and the friction between the airbag 81 and the inner wall of the corresponding slide rail 3 is relatively small. At the same time, the inside of the limit groove 82 (including the limit groove 82 located at the middle position of the corresponding two pistons 83) is also filled with gas in the initial state.

[0042] like Fig.13 In the direction shown, if the tower crane body 1 drives the slide rail 3 to swing to the right, the contact pressure between the left wall of the slide rail 3 and the left air bag 81 will increase accordingly, and the extrusion force applied by the side wall of the slide rail 3 to the left air bag 81 will squeeze the gas inside the left air bag 81 into the corresponding limiting groove 2 82 through the cooperation of the corresponding through hole 1 and through hole 2, and the thrust applied by this part of the gas to the left piston 83 will drive the left piston 83 to move to the right, and in the process of the left piston 83 moving to the right, the thrust applied to the corresponding right piston 83 by squeezing the gas between it and the corresponding right piston 83 can push the right piston 83 to move to the right (as shown in FIG. Fig.14In the direction shown), the gas on the right side of the limiting groove 82 is squeezed to the right airbag 81 through the corresponding square opening 86, so as to increase the pressure and air pressure inside the right airbag 81, that is, increase the contact pressure between the right airbag 81 and the right side wall of the slide rail 3, and achieve the effect of balancing the contact pressure and friction between the left and right sides of the roller 6 and the corresponding slide rail 3, which helps to further improve the stability of the mobile device 2 during the up and down process.

[0043] On the contrary, if Fig.13 In the direction shown, if the tower crane body 1 drives the slide rail 3 to swing to the left, and the contact pressure between the right side wall of the slide rail 3 and the right air bag 81 gradually increases, then through the above operation, the pressure and air pressure of the gas inside the left air bag 81 can be increased, and the contact pressure between the left air bag 81 and the corresponding slide rail 3 can be increased, thereby achieving the effect of balancing the contact pressure between the two air bags 81, that is, the left and right sides of the roller 6 and the slide rail 3.

[0044] At the same time, the purpose of adding two baffles 84 between the limit groove 82 and the corresponding limit groove 1 719 is to prevent the corresponding two sealing plates 710 from being forced to move, and when the gas is squeezed in the moving direction, this part of the gas is squeezed into the corresponding limit groove 82 and acts on the corresponding two pistons 83. On the contrary, when the two pistons 83 are forced to move and the gas is squeezed in the moving direction, the cooperation of the two baffles 84 can prevent the part of the squeezed gas from entering the corresponding limit groove 1 719 and acting on the corresponding two sealing plates 710.

[0045] Reference Figure 11-Figure 18 , a speed regulating assembly 9 is provided between the support shafts 5, and the speed regulating assembly 9 includes vent holes (drawn but not marked in the figure, from Fig.11 As can be seen in the figure), the vent holes are all equipped with air valves 91, the air valves 91 are all fixedly connected with air guide pipes 92, and the air guide pipes 92 are sealed and penetrated and fixedly installed on the corresponding support shafts 5, and one end of the air guide pipes 92 are sealed and penetrated and fixedly installed on the corresponding air supply pipes 85, and one end of the air guide pipes 92 are fixedly connected with multiple exhaust pipes 93.

[0046] The air valve 91 is usually designed with a movable valve core or valve flap inside. When the moving device 2 is stationary or is lifted and lowered at a low speed under force, the air pressure inside and outside the support shaft 5 is relatively balanced, and the air valve 91 is in a closed state. If the lifting device fails or other factors cause the moving device 2 to lift and lower rapidly, that is, stall lift and lower, then according to the principles of aerodynamics, the support shaft 5, that is, the air flow rate outside the vent, will increase, which will cause the air pressure outside the vent to decrease. Since the air pressure inside the vent is still kept at a relatively high state, a pressure difference is formed inside and outside the vent. When the pressure difference is sufficient to overcome the resistance of the valve core or valve flap of the air valve 91, such as gravity and spring force, the valve core or valve flap can be pushed to move, so that the air valve 91 is automatically opened, thereby prompting the external gas to enter the corresponding air guide pipe 92.

[0047] When the mobile device 2 stalls and rises, the air valve 91 automatically opens, and the outside gas enters the corresponding air duct 92. At this time, this part of the gas will enter the corresponding multiple exhaust pipes 93 along the pipe wall of the air duct 92, and finally be uniformly ejected from the corresponding multiple exhaust pipes 93. The gas uniformly ejected from the corresponding multiple exhaust pipes 93 applies a driving force to the corresponding two sealing plates 710 and the two pistons 83, which can drive the corresponding two sealing plates 710 to drive the corresponding rod bodies 78 away from each other. The extrusion force applied by the corresponding two rod bodies 78 to the corresponding roller body 73 by squeezing the corresponding extrusion plate 79 can help increase the friction between the left rear side and the right front side of the roller 6 and the corresponding slide rail 3 (such as Fig.16 direction shown); At the same time, the driving force applied by the two exhaust pipes 93 to the corresponding pistons 83 can drive the corresponding two pistons 83 to move away from each other, and the corresponding two pistons 83 move relatively, and the squeezing force applied by the gas to the corresponding airbags 81 can help increase the friction between the corresponding two airbags 81 and the slide rail 3, that is, the friction between the lower left side and the upper right side of the roller 6 and the slide rail 3 (such as Fig.16 In the direction shown in the figure), during the stall lifting process of the mobile device 2, by increasing the friction resistance between the roller 6 and the slide rail 3, the moving speed of the mobile device 2 can be slowed down to a certain extent, which helps to reduce the probability of safety accidents or the severity of safety accidents.

[0048] At the same time, valve cores or valve flaps are provided at both the upper and lower ends of the air valve 91, so that when the pressure difference formed inside and outside the vent reaches a certain level during the process of the mobile equipment 2 stalling up and stalling down, the air valve 91 can be automatically opened, and the moving speed of the mobile equipment 2 can be slowed down by cooperating with the speed regulating component 9, the regulating component 7 and the air regulating component 8. The specific working principle and internal components of the air valve 91 are existing mature technologies and will not be further elaborated here.

[0049] At the same time, a tube body (not shown in the figure) is added to the air guide tube 92, and electric valves are installed on the tube body. When the stalled mobile device 2 gradually slows down and the staff leaves the mobile device 2, multiple electric valves are started. At this time, under the elastic force of the corresponding two reset springs 1 and 2, the corresponding two sealing plates 710 can be driven to drive the corresponding extrusion plate 79 to move and reset, and squeeze the excess gas between the two into the corresponding air guide tube 92. At the same time, in the process of the corresponding two pistons 83 being forced to move and reset, the excess gas between the two will also be squeezed into the corresponding air guide tube 92, and the gas entering the inside of the air guide tube 92 can eventually be discharged along the corresponding tube body, so as to facilitate the subsequent automatic adjustment of the contact pressure between the roller 6 and the slide rail 3 by the equipment.

[0050] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0051] In the present invention, in the process of driving the mobile device 2 to drive the workers to move vertically on the tower crane body 1 through the existing lifting device, the cooperation of the two slide rails 3 and the multiple rollers 6 can help improve the stability of the mobile device 2 in the process of driving the workers to move up and down.

[0052] like Figure 5 In the direction shown, if the tower crane body 1 is shaken by factors such as wind, the slide rail 3 is driven to shake to the right, and the contact pressure between the left inner wall of the slide rail 3 and the left side of the roller 6 continues to increase, and the tangential friction between the inner wall of the roller 6 and the roller body 73 gradually increases (such as Figure 5 The left roller 73 can be driven to drive the corresponding rotating shaft 72 to rotate. When the left rotating shaft 72 drives the corresponding disc 76 to rotate, the centrifugal force generated can drive the right rod 78 to move to the right (as shown in the direction) through the cooperation of the pushing mechanism and the extrusion mechanism. Fig.12 The extrusion force exerted by the right rod body 78 on the corresponding extrusion plate 79 when it moves to the right can be transmitted to the right side of the roller 6 through the right roller body 73, so as to achieve the effect of balancing the contact pressure and friction between the left and right sides of the roller 6 and the slide rail 3, which helps to improve the stability and safety of the mobile equipment 2 in the process of lifting the staff.

[0053] At the same time Fig.13In the direction shown, if the tower crane body 1 is shaken by factors such as wind, driving the slide rail 3 to shake to the right, when the contact pressure between the left air bag 81 and the slide rail 3 continues to increase, the slide rail 3 will squeeze the gas inside the left air bag 81 into the corresponding limit groove 2 82. At this time, through cooperation with the pressure regulating mechanism, the contact pressure between the right air bag 81 and the slide rail 3 can be increased by increasing the air pressure and pressure of the gas inside the right air bag 81, thereby achieving the effect of balancing the contact pressure between the left and right sides of the roller 6 and the slide rail 3, which helps to further improve the stability and safety of the mobile equipment 2 in the process of driving the staff to lift.

[0054] At the same time, if the mobile device 2 stalls during the lifting process under force, the air valve 91 can be automatically opened due to the pressure difference between the inside and outside of the vent hole, allowing external gas to enter the air duct 92. At this time, the air duct 92 cooperates with the corresponding multiple exhaust pipes 93 to spray the gas on the corresponding two sealing plates 710 and the piston 83, which can drive the corresponding two sealing plates 710, the rod body 78 and the piston 83 to move away from each other. In this way, the friction between the roller 6 and the slide rail 3 around the roller 6, that is, the friction resistance during the lifting process of the mobile device 2, can be increased, so as to achieve the effect of slowing down the moving speed of the mobile device 2 to a certain extent, which helps to reduce the probability of safety accidents caused by the stall of the mobile device 2, or the severity of safety accidents.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slide rail type mobile platform for a building tower crane, comprising a tower crane body (1), a mobile device (2), and a plurality of fixing members (4), wherein the fixing members (4) are all fixedly connected to the mobile device (2), two slide rails (3) are fixedly mounted on the side of the tower crane body (1), two support shafts (5) are fixedly mounted on the fixing members (4), rollers (6) are rotatably mounted on the support shafts (5), and the rollers (6) are slidably mounted in the corresponding slide rails (3), characterized in that: An adjustment component (7) is provided between the rollers (6) for balancing the friction between the two opposite sides of the rollers (6) and the corresponding slide rails (3); an air adjustment component (8) is provided between the rollers (6); The adjustment assembly (7) comprises support frames (71) respectively fixedly mounted on the support shafts (5), two rotating shafts (72) being rotatably mounted on the support frames (71), roller bodies (73) being fixedly mounted on the rotating shafts (72), a pushing mechanism being commonly mounted between the rotating shafts (72), and a squeezing mechanism being commonly mounted between the support shafts (5); The air regulating assembly (8) comprises two air bags (81) respectively fixedly mounted on the sides of the roller (6), and the right air bags (81) are sealed and penetrated and slidably mounted on the corresponding support shafts (5), and a pressure regulating mechanism is installed between the support shafts (5) for regulating the air pressure of the air bags (81).

2. A slide rail type mobile platform for a building tower crane according to claim 1, characterized in that: The pushing mechanism comprises disks (76) respectively fixedly mounted on the rotating shafts (72), and the disks (76) are each provided with placement grooves (74) evenly distributed in an annular shape; A spring telescopic rod (713) is fixedly mounted on the placement groove (74), a limit frame (714) is fixedly mounted on one end of the spring telescopic rod (713), a cylinder (715) is slidably mounted on the limit frame (714), an arc plate (716) is fixedly mounted on one side of the cylinder (715), a limit disk (75) matching the corresponding arc plate (716) is rotatably mounted on the rotating shaft (72), and a limit component is installed between the disks (76).

3. A slide rail type mobile platform for a building tower crane according to claim 2, characterized in that: The limiting component comprises a plurality of slide grooves (717) respectively formed on the disc (76), and the slide grooves (717) are all connected to the corresponding placement grooves (74), and a sliding block (718) is slidably mounted on the slide grooves (717), and the sliding block (718) is fixedly connected to the corresponding limiting frame (714).

4. The slide rail type mobile platform for a building tower crane according to claim 2, characterized in that: The extrusion mechanism comprises two limit members (77) respectively fixedly mounted on the support shaft (5); a rod body (78) is passed through and slidably mounted on each of the limit members (77); a connecting rod (712) is fixedly mounted on each of the rod bodies (78); a push plate (711) matched with a corresponding arc-shaped plate (716) is fixedly mounted on each of the connecting rods (712); and a pressing component is commonly mounted between the connecting rods (712).

5. A slide rail type mobile platform for a building tower crane according to claim 4, characterized in that: The pressing components include extrusion plates (79) respectively fixedly mounted on one end of the rod body (78), the support shaft (5) is provided with a limiting groove (719), the other end of the rod body (78) is fixedly mounted with a sealing plate (710), and the sealing plate (710) is sealingly slidably mounted on the corresponding limiting groove (719).

6. The slide rail type mobile platform for a building tower crane according to claim 1, characterized in that: The pressure regulating mechanism comprises two limiting grooves (82) respectively formed on the support shaft (5), and each of the two limiting grooves (82) is connected to the corresponding one limiting groove (719). The support shaft (5) is provided with a square opening (86) connected to the corresponding one limiting groove (82). Two pistons (83) are sealingly and slidably mounted on the second limiting groove (82), and a shielding component is installed between the second limiting grooves (82).

7. A slide rail type mobile platform for a building tower crane according to claim 6, characterized in that: The shielding component comprises two baffles (84) respectively fixedly mounted on the second limiting groove (82), and an air delivery pipe (85) is fixedly connected between the two corresponding baffles (84).

8. The slide rail type mobile platform for a building tower crane according to claim 7, characterized in that: A speed regulating assembly (9) is commonly provided between the support shafts (5), the speed regulating assembly (9) comprising ventilation holes respectively provided on the support shafts (5), the ventilation holes each being provided with an air valve (91), the air valve (91) each being fixedly connected to an air guide pipe (92), the air guide pipe (92) being sealed and passing through and fixedly installed on the corresponding support shaft (5), one end of the air guide pipe (92) being sealed and passing through and fixedly installed on the corresponding air delivery pipe (85), and one end of the air guide pipe (92) being fixedly connected to a plurality of exhaust pipes (93).

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