A driving device and an exterior building scaffold

Abstract

The present invention relates to the technical field of construction industry, and particularly to a driving device and an external building scaffold. By setting up the cooperation of steel pipes, racks, first pulley assemblies, coupling gears and double-stage worm and worm gear reducers, the driving mechanism can slide stably on the track mechanism, thereby realizing stable lifting and lowering; due to the adoption of a double-stage worm and worm gear reducer, it can automatically enter the double-stage braking state after the driving stops, thus ensuring the safety and reliability of the use of the driving device; the driving device designed in this solution can be used for concrete pouring and other external wall projects until all external wall operations are completed, and the utilization rate is more than twice that of the existing climbing scaffolds; applying the driving device designed in this solution to external wall operations, stable lifting and lowering are realized by matching with tower racks and layer racks, improving the operation stability, and being safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of construction, and particularly relates to a driving device and an exterior building scaffold. Background Art

[0002] Currently, electric hoists are used to lift the exterior scaffold, which can only move upward and cannot move downward. The utilization rate of the exterior scaffold is not high and it becomes useless after pouring the top. Moreover, the lifting of each electric hoist is not synchronized, and the balance error of the exterior scaffold is large (more than 100 mm), which easily causes deformation of the exterior scaffold and poses a safety hazard. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a driving device and an exterior building scaffold that can lift and lower stably.

[0004] To solve the above technical problem, the first technical solution adopted by the present invention is as follows:

[0005] A driving device includes a track mechanism and a driving mechanism. The driving mechanism is installed on the track mechanism and is slidably connected to the track mechanism. The track mechanism includes a rack and two parallel steel pipes. The rack is installed on the steel pipes and the extending direction of the rack is the same as the extending direction of the steel pipes. The driving mechanism includes a first mounting seat. On one side of the first mounting seat, there are two groups of first pulley assemblies and a coupling gear. The two groups of first pulley assemblies are symmetrically arranged at opposite ends of one side of the first mounting seat respectively. The coupling gear is located between the two groups of first pulley assemblies. Each first pulley assembly includes two juxtaposed first pulleys. The two steel pipes and the rack are located between the two first pulleys, and the two steel pipes are respectively slidably connected to the corresponding first pulleys. The coupling gear meshes with the rack;

[0006] On the opposite side of one side of the first mounting seat, there is a double-stage worm and worm gear reducer. One end of the double-stage worm and worm gear reducer passes through the first mounting seat and is connected to the coupling gear.

[0007] The second technical solution adopted by the present invention is as follows:

[0008] An exterior building scaffold includes more than two tower scaffolds, more than two layer scaffolds and a driving device;

[0009] Two of the tower scaffolds and one layer scaffold form one layer of the exterior scaffold. The driving mechanism of the driving device is installed on the tower scaffold, and the track mechanism of the driving device is installed on an external wall.

[0010] The beneficial effects of the present invention are as follows:

[0011] By setting up the cooperation of the steel pipe, rack, first pulley assembly, coupling gear and double-stage turbine worm reducer, the driving mechanism can slide stably on the track mechanism, thus realizing stable lifting; due to the adoption of the double-stage turbine worm reducer, it can automatically enter the double-stage braking state after the driving stops, thus ensuring the safety and reliability of the driving device; the driving device designed in this scheme can be used for concrete pouring and other exterior wall project operations until all exterior wall operations are completed, and the utilization rate is more than twice that of the existing climbing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. [X] is a schematic structural diagram of a driving device according to the present invention;

[0013] Figure 2 FIG. [X] is a schematic structural diagram of the driving mechanism of a driving device according to the present invention;

[0014] Figure 3 FIG. [X] is a schematic structural diagram of the driving mechanism of a driving device according to the present invention;

[0015] Figure 4 FIG. [X] is a schematic structural diagram of the driven mechanism of a driving device according to the present invention;

[0016] Figure 5 FIG. [X] is a schematic structural diagram of the track mechanism of a driving device according to the present invention;

[0017] Figure 6 FIG. [X] is a schematic structural diagram of the installation mechanism of a building exterior scaffold according to the present invention;

[0018] Figure 7 FIG. [X] is a schematic structural diagram of the installation mechanism of a building exterior scaffold according to the present invention;

[0019] Figure 8 FIG. [X] is a schematic structural diagram of the tower of a building exterior scaffold according to the present invention;

[0020] Figure 9 FIG. [X] is a schematic structural diagram of the assembled tower of a building exterior scaffold according to the present invention;

[0021] Figure 10 FIG. [X] is a schematic structural diagram of the assembled tower and floor of a building exterior scaffold according to the present invention;

[0022] Figure 11 FIG. [X] is a schematic structural diagram of the assembled driving device according to the present invention;

[0023] Figure 12 FIG. [X] is a schematic structural diagram of the assembled building exterior scaffold according to the present invention;

[0024] Figure 13Schematic diagram of the assembled structure of an exterior building scaffold according to the present invention;

[0025] Figure 14 Schematic diagram of the assembled structure of an exterior building scaffold according to the present invention;

[0026] Label description:

[0027] 1. Track mechanism; 11. Rack; 12. Steel pipe;

[0028] 2. Driving mechanism; 21. First mounting seat; 22. First pulley assembly; 23. Coupling gear; 24. Double-stage worm and worm gear reducer; 25. First safety corner guard assembly; 26. Rack pressure wheel; 27. First braking mechanism; 271. First brake bolt; 272. First brake rocker arm; 273. First screw; 274. First connecting block; 275. First brake cover; 276. First brake tooth; 277. First fixing rod;

[0029] 3. Driven mechanism; 31. Second mounting seat; 32. Second pulley assembly; 33. Second safety corner guard assembly; 34. Second braking mechanism; 341. Second brake bolt; 342. Second brake rocker arm; 343. Second screw; 344. Second connecting block; 345. Second brake cover; 346. Second brake tooth; 347. Second fixing rod;

[0030] 4. Tower;

[0031] 5. Layer rack; 51. Tower shoulder;

[0032] 6. Installation mechanism; 61. Adjustable bracket; 62. Embedded part; 63. Eccentric hole sleeve; 64. Gasket; 65. Third screw;

[0033] 7. Exterior scaffold;

[0034] 8. Wall. Detailed implementation method

[0035] To describe in detail the technical content, achieved objectives and effects of the present invention, the following is described in conjunction with the implementation methods and with reference to the accompanying drawings.

[0036] Please refer to Figure 1 , a technical solution provided by the present invention:

[0037] A driving device includes a track mechanism and a driving mechanism. The driving mechanism is mounted on the track mechanism and is slidably connected to the track mechanism. The track mechanism includes a rack and two parallel steel pipes. The rack is mounted on the steel pipes and the extending direction of the rack is the same as that of the steel pipes. The driving mechanism includes a first mounting seat. On one side surface of the first mounting seat, there are two groups of first pulley assemblies and a coupling gear. The two groups of first pulley assemblies are symmetrically arranged at the opposite ends of one side surface of the first mounting seat respectively. The coupling gear is located between the two groups of first pulley assemblies. Each first pulley assembly includes two juxtaposed first pulleys. Both of the two steel pipes and the rack are located between the two first pulleys and the two steel pipes are respectively slidably connected to the corresponding first pulleys. The coupling gear meshes with the rack;

[0038] On the opposite side surface of one side surface of the first mounting seat, there is a double-stage worm and worm gear reducer. One end of the double-stage worm and worm gear reducer passes through the first mounting seat and is connected to the coupling gear.

[0039] As can be seen from the above description, the beneficial effects of the present invention are as follows:

[0040] Through the cooperation of the steel pipes, the rack, the first pulley assemblies, the coupling gear and the double-stage worm and worm gear reducer, the driving mechanism can slide stably on the track mechanism, so as to realize stable lifting; due to the adoption of the double-stage worm and worm gear reducer, it can automatically enter the double-stage braking state after the driving stops, thus ensuring the safety and reliability of the use of the driving device; the driving device designed in this scheme can be used for concrete pouring and other projects on the exterior wall until all exterior wall operations are completed, and the utilization rate is more than twice that of the existing climbing frames.

[0041] Further, on one side surface of the first mounting seat, there are also two groups of first safety angle holders. The two groups of first safety angle holders are symmetrically arranged between the two groups of first pulley assemblies. Each first safety angle holder includes two first limit blocks. There is a first groove on the first limit block for the steel pipe to pass through.

[0042] As can be seen from the above description, by setting the first safety angle holders, when a failure occurs in the bearing of the pulley, the driving mechanism will not disengage from the track mechanism, thus ensuring the safety and reliability of the use of the driving device.

[0043] Further, on one side surface of the first mounting seat, there is also a first rack press wheel. The first rack press wheel is arranged opposite to the coupling gear. The rack is located between the first rack press wheel and the coupling gear. The first rack press wheel abuts against the rack.

[0044] As can be seen from the above description, by setting the first rack pressing wheel to cooperate with the rack and driving it by a double-stage worm and worm gear reducer, the rack pressing wheel presses tightly against the rack, which can further improve the stability of the coupling drive between the coupling gear and the rack, thus ensuring the safety and reliability of the driving device during use.

[0045] Further, a first braking mechanism is also provided on one side surface of the first mounting seat. The first braking mechanism is located between two groups of first pulley assemblies. The first braking mechanism includes a first brake bolt, a first brake rocker arm, a first screw rod, a first connecting block, a first brake cover, a first brake tooth and a first fixing rod. The first brake cover is fixedly arranged on one side surface of the first mounting seat. The first brake tooth is located inside the first brake cover, and the meshing end of the first brake tooth extends outside the first brake cover. One end of the first screw rod extends into the first brake cover and is connected to the first brake tooth. One end of the first brake rocker arm is hinged to one end of the first connecting block. The other end of the first connecting block opposite to one end is fixedly connected to the first brake cover. One end of the first fixing rod sequentially passes through the first brake rocker arm and the first brake cover and is fixedly connected to the first brake tooth. A first fixing block is provided on the first brake cover. The first brake bolt is hinged to the first fixing block. A first strip-shaped groove is provided on the outer wall of the first brake cover. One end of the first brake bolt extends into the first strip-shaped groove.

[0046] As can be seen from the above description, before starting the driving device, first adjust the first screw rod, push open the first brake bolt, and dial the first brake rocker arm outwards to tighten it. The movement of the first brake rocker arm drives the movement of the first brake tooth. Then, dial down the first brake bolt to lock the first brake cover, so that the first brake tooth is in a released state. After the lifting is completed, repeat the above steps to make the first brake tooth in a state of meshing with the rack, further improving the safety of the driving device.

[0047] Further, a driven mechanism is also included. The driven mechanism is installed on the track mechanism and is slidably connected to the track mechanism. The driven mechanism includes a second mounting seat. Two groups of second pulley assemblies are provided on one side surface of the second mounting seat. The two groups of second pulley assemblies are symmetrically arranged at opposite ends of one side surface of the second mounting seat respectively. Each second pulley assembly includes two second pulleys arranged side by side. Both the two steel pipes and the rack are located between the two second pulleys, and the two steel pipes are respectively slidably connected to the corresponding second pulleys.

[0048] As can be seen from the above description, by setting the driven mechanism, the driving stability can be further improved, thus ensuring the safety and reliability of the driving device during use.

[0049] Further, two groups of second safety corner guards are provided on one side surface of the second mounting base. The two groups of second safety corner guards are symmetrically arranged between the two groups of second pulley assemblies. Each second safety corner guard includes two second limit blocks, and a second groove for a steel pipe to pass through is provided on each second limit block.

[0050] As can be seen from the above description, by providing the second safety corner guards, when a failure occurs in the bearing of the pulley, the driven mechanism will not disengage from the track mechanism, thereby ensuring the safety and reliability of the driving device during use.

[0051] Further, a second braking mechanism is provided on one side surface of the second mounting base. The second braking mechanism is located between the two groups of second pulley assemblies. The second braking mechanism includes a second brake bolt, a second brake rocker arm, a second screw rod, a second connecting block, a second brake housing, a second brake gear, and a second fixing rod. The second brake housing is fixedly arranged on one side surface of the second mounting base. The second brake gear is located inside the second brake housing, and the meshing end of the second brake gear extends outside the second brake housing. One end of the second screw rod extends into the second brake housing and is connected to the second brake gear. One end of the second brake rocker arm is hinged to one end of the second connecting block. The other end of the second connecting block opposite to one end is fixedly connected to the second brake housing. One end of the second fixing rod sequentially passes through the second brake rocker arm and the second brake housing and is fixedly connected to the second brake gear. A second fixing block is provided on the second brake housing. The second brake bolt is hinged to the second fixing block. A second strip-shaped groove is provided on the outer wall of the second brake housing. One end of the second brake bolt extends into the second strip-shaped groove.

[0052] As can be seen from the above description, before starting the driving device, first adjust the second screw rod, push open the second brake bolt, and dial the second brake rocker arm outwards to tighten it. The movement of the second brake rocker arm drives the movement of the second brake gear. Then, dial down the second brake bolt to lock the second brake housing, so that the second brake gear assembly is in a released state. After the lifting is completed, repeat the above steps to make the second brake gear in a state of meshing with the rack, further improving the safety of the driving device.

[0053] Another technical solution provided by the present invention:

[0054] A building exterior scaffold includes more than two tower frames, more than two story frames, and a driving device;

[0055] Two of the tower frames and one story frame form one layer of the exterior scaffold. The driving mechanism of the driving device is installed on the tower frame, and the track mechanism of the driving device is installed on an external wall.

[0056] As can be seen from the above description, the beneficial effects of the present invention are as follows:

[0057] By setting up the cooperation of the steel pipe, the rack, the first pulley assembly, the coupling gear and the double-stage worm and worm gear reducer, the driving mechanism can slide stably on the track mechanism, thus realizing stable lifting; due to the adoption of the double-stage worm and worm gear reducer, it can automatically enter the double-stage braking state after the driving stops, thus ensuring the safety and reliability of the driving device; the driving device designed in this scheme can be used for concrete pouring and other exterior wall projects until all exterior wall operations are completed, and its utilization rate is more than twice that of the existing climbing frames; applying the driving device designed in this scheme to exterior wall operations, stable lifting is achieved by matching with the tower and the layer frame, improving the operation stability, safety and reliability.

[0058] Furthermore, the track mechanism is connected to the peripheral wall through an installation mechanism, and the installation mechanism includes a track adjustable bracket, a pre-embedded part, an eccentric hole sleeve, a gasket and a third screw. The pre-embedded part is fixedly arranged on the peripheral wall, a through hole is opened on the track adjustable bracket, the eccentric hole sleeve is arranged in the through hole, and one end of the third screw sequentially passes through the gasket and the eccentric hole sleeve and is threadedly connected to the pre-embedded part.

[0059] As can be seen from the above description, after the concrete of the pre-embedded part reaches the strength requirement, the pre-embedded part is driven into the peripheral wall, the eccentric hole sleeve is pulled out about 15 mm, the position of the adjustable bracket is adjusted, the through hole is aligned, then the eccentric hole sleeve and the gasket are sleeved, and the adjustable bracket is locked with the third screw to complete the stable installation between the track mechanism and the peripheral wall.

[0060] Furthermore, the tower is a hollow cube, a tower shoulder is connected to one end of the tower, and adjacent layers of the tower are connected through the tower shoulder. The layer frame is fixedly sleeved outside the tower shoulder.

[0061] As can be seen from the above description, the tower is a hollow cube, and a tower shoulder is connected to one end of the tower, which can be used for distance compensation dimensions, also avoids the deformation of the outer frame failure, improves the operation stability, safety and reliability.

[0062] Please refer to Figures 1 to 5 , the first embodiment of the present invention is:

[0063] Please refer to Figures 1 to 4, a driving device, comprising a track mechanism 1 and a driving mechanism 2. The driving mechanism 2 is mounted on the track mechanism 1 and is slidably connected to the track mechanism 1. The track mechanism 1 includes a rack 11 and two parallel steel pipes 12. The rack 11 is mounted on the steel pipes 12, and the extending direction of the rack 11 is the same as the extending direction of the steel pipes 12. The driving mechanism 2 includes a first mounting seat 21. On one side of the first mounting seat 21, there are two groups of first pulley assemblies 22 and a coupling gear 23. The two groups of first pulley assemblies 22 are symmetrically arranged at opposite ends of one side of the first mounting seat 21. The coupling gear 23 is located between the two groups of first pulley assemblies 22. The first pulley assembly 22 includes two juxtaposed first pulleys. Both of the two steel pipes 12 and the rack 11 are located between the two first pulleys, and the two steel pipes 12 are respectively slidably connected to the corresponding first pulleys. The coupling gear 23 meshes with the rack 11;

[0064] On the opposite side of one side of the first mounting seat 21, there is a two-stage worm and worm gear reducer 24. One end of the two-stage worm and worm gear reducer 24 passes through the first mounting seat 21 and is connected to the coupling gear 23.

[0065] The two-stage worm and worm gear reducer 24 includes a motor and a rotating mechanism. The rotating mechanism is fixedly connected to the output shaft of the motor;

[0066] The rotating mechanism includes a first worm, a second worm, a first turbine, a second turbine and a connecting rod. The output shaft of the motor is fixedly connected to one end of the first worm. The first turbine meshes with the first worm. One end of the second worm is fixedly inserted into the inner cavity of the first turbine. The second turbine meshes with the second worm. One end of the connecting rod is fixedly inserted into the inner cavity of the second turbine. The opposite end of one end of the connecting rod passes through the first mounting seat 21 and is fixedly connected to the coupling gear 23.

[0067] On one side of the first mounting seat 21, there are also two groups of first safety clamping angle assemblies 25. The two groups of first safety clamping angle assemblies 25 are symmetrically arranged between the two groups of first pulley assemblies 22. The first safety clamping angle assembly 25 includes two first limit blocks. There is a first groove on the first limit block for the steel pipe 12 to pass through.

[0068] On one side of the first mounting seat 21, there is also a first rack pressing wheel 26. The rack pressing wheel 26 is arranged opposite to the coupling gear 23. The rack 11 is located between the rack pressing wheel 26 and the coupling gear 23. The rack pressing wheel 26 abuts against the rack 11.

[0069] On one side of the first mounting seat 21, there is also a first braking mechanism 27. The first braking mechanism 27 is located between two groups of first pulley assemblies 22. The first braking mechanism 27 includes a first brake bolt 271, a first brake rocker arm 272, a first screw rod 273, a first connecting block 274, a first brake cover 275, a first brake tooth 276 and a first fixing rod 277. The first brake cover 275 is fixedly arranged on one side of the first mounting seat 21. The first brake tooth 276 is located inside the cavity of the first brake cover 275, and the meshing end of the first brake tooth 276 extends outside the first brake cover 275. One end of the first screw rod 273 extends into the cavity of the first brake cover 275 and is connected to the first brake tooth 276. One end of the first brake rocker arm 272 is hinged to one end of the first connecting block 274. The other end of the first connecting block 274 opposite to one end is fixedly connected to the first brake cover 275. One end of the first fixing rod 277 sequentially passes through the first brake rocker arm 272 and the first brake cover 275 and is fixedly connected to the first brake tooth 276. There is a first fixing block on the first brake cover 275. The first brake bolt 271 is hinged to the first fixing block. There is a first strip-shaped groove on the outer wall of the first brake cover 275. One end of the first brake bolt 271 extends into the first strip-shaped groove.

[0070] Please refer to Figure 5 , and further includes a driven mechanism 3. The driven mechanism 3 is installed on the track mechanism 1 and is slidably connected to the track mechanism 1. The driven mechanism 3 includes a second mounting seat 31. On one side of the second mounting seat 31, there are two groups of second pulley assemblies 32. The two groups of second pulley assemblies 32 are respectively symmetrically arranged at opposite ends of one side of the second mounting seat 31. The second pulley assembly 32 includes two second pulleys arranged in parallel. Both the steel pipes 12 and the rack 11 are located between the two second pulleys, and the two steel pipes 12 are respectively slidably connected to the corresponding second pulleys.

[0071] On one side of the second mounting seat 31, there are also two groups of second safety angle holding assemblies 33. The two groups of second safety angle holding assemblies 33 are symmetrically arranged between the two groups of second pulley assemblies 32. The second safety angle holding assembly 33 includes two second limiting blocks, and a second groove for the steel pipe 12 to pass through is provided on the second limiting block.

[0072] On one side of the second mounting base 31, a second braking mechanism 34 is further provided. The second braking mechanism 34 is located between two groups of second pulley assemblies 32. The second braking mechanism 34 includes a second brake bolt 341, a second brake rocker arm 342, a second screw 343, a second connecting block 344, a second brake cover 345, a second brake gear 346 and a second fixing rod 347. The second brake cover 345 is fixedly arranged on one side of the second mounting base 31. The second brake gear 346 is located inside the second brake cover 345, and the meshing end of the second brake gear 346 extends to the outside of the second brake cover 345. One end of the second screw 343 extends into the inner cavity of the second brake cover 345 and is connected to the second brake gear 346. One end of the second brake rocker arm 342 is hinged to one end of the second connecting block 344. The other end of the second connecting block 344 opposite to one end is fixedly connected to the second brake cover 345. One end of the second fixing rod 347 sequentially passes through the second brake rocker arm 342 and the second brake cover 345 and is fixedly connected to the second brake gear 346. A second fixing block is provided on the second brake cover 345. The second brake bolt 341 is hinged to the second fixing block. A second strip-shaped groove is provided on the outer wall of the second brake cover 345. One end of the second brake bolt 341 extends into the second strip-shaped groove.

[0073] The working principle of the above driving device is as follows:

[0074] Before the driving device is started, first adjust the first screw 273 and the second screw 343 respectively, push the first brake bolt 271 and the second brake bolt 341 away respectively, and pull the first brake rocker arm 272 and the second brake rocker arm 342 outwards and tighten them. The movement of the first brake rocker arm 272 drives the movement of the first brake gear 276, and the movement of the second brake rocker arm 342 drives the movement of the second brake gear 346. Then, pull the first brake bolt 271 and the second brake bolt 341 down respectively to lock the first brake cover 275 and the second brake cover 345, so that both the first brake gear 276 and the second brake gear 346 are in a released state;

[0075] Start the motor to drive the rotating mechanism to rotate. The rotation of the rotating mechanism drives the coupling gear 23 to rotate. The coupling gear 23 meshes with the rack 11, thereby driving the whole to slide on the steel pipe 12 to realize lifting. After the lifting stops and stabilizes, the first braking mechanism 27 and the second braking mechanism 34 repeat the above operation steps to further brake the driving device.

[0076] Please refer to Figures 6 to 14 , Embodiment 2 of the present invention is:

[0077] Please refer to Figures 12 to 14 , A building exterior scaffold includes more than two tower frames 4, more than two layer frames 5 and a driving device;

[0078] Two of the said tower racks 4 and one shelf 5 form an outer frame 7. The driving mechanism's driving mechanism 2 is installed on the tower rack 4, and the driving mechanism's rail mechanism 1 is installed on the peripheral wall 8.

[0079] The shelf 5 is equipped with pedals. The border square tubes of the pedals are also connected and strengthened diagonally with square tubes, and the upper part is covered with a mesh plate. Inside the outer square tube, there is a pair of angle pieces that extend downward and then open outward, used to be sleeved into the square tube above the outside of the shelf 5. Inside the inner square tube, a pair of pins is installed. After the outer angle pieces are sleeved into the inner side of the outer square tube of the shelf 5, the pins are inserted into the inner side of the inner square tube of the border, making the pedal stable on the shelf 5, which is safe and convenient.

[0080] Please refer to Figure 6 and Figure 7 As shown in, the rail mechanism 1 and the peripheral wall 8 are connected through the installation mechanism 6. The installation mechanism 6 includes a rail adjustable bracket 61, an embedded part 62, an eccentric hole sleeve 63, a gasket 64, and a third screw rod 65. The embedded part 62 is fixedly arranged on the peripheral wall 8. The rail adjustable bracket 61 is provided with a through hole. The eccentric hole sleeve 63 is arranged in the through hole. One end of the third screw rod 65 sequentially passes through the gasket 64 and the eccentric hole sleeve 63 and is threadedly connected to the embedded part 62.

[0081] Please refer to Figures 8 to 10 As shown in, the tower rack 4 is a hollow cube. One end of the tower rack 4 is connected with a tower shoulder 51. The tower racks 4 of adjacent two layers are connected through the tower shoulder 51. The shelf 5 is fixedly sleeved outside the tower shoulder 51.

[0082] Please refer to Figure 11 In this embodiment, four layers of outer frames 7 are adopted, using two driving mechanisms 2, four driven mechanisms 3, and six rail mechanisms 1. One driving mechanism 2, two driven mechanisms 3, and three rail mechanisms 1 are in a group. The rail mechanism 1 starts to be installed from the second layer of the outer frame 7. The overall height of one rail mechanism 1 is adapted to the overall height of one layer of the outer frame 7. One driving mechanism 2 and one driven mechanism 3 are installed on the rail mechanism 1 installed on the second layer of the outer frame 7. One driven mechanism 3 is installed on the rail mechanism 1 installed on the third layer of the outer frame 7.

[0083] The first design intention of this solution:

[0084] Regarding the length control of the three - layer rack (L represents the length of one - layer rack), the length of the three - layer rack is 3L = a + 2*b, where a = 3016 mm is the length of an 8 - module 120 - tooth rack, and b=(3016 - 25.14)mm = 2990.86 mm is the length of an 8 - module 119 - tooth rack;

[0085] 1. The length of the theoretical three-layer rack is a + b + b = (3016 + 2990.86 + 2990.86) mm = 8997.72 mm;

[0086] 2. The length of the thirty-layer rack is (8997.72 * 10) mm = 89977.2 mm;

[0087] 3. The height of the thirty-two-story building is 96000 mm. Subtracting the first and the topmost floors, the height of the building where the theoretical track mechanism is installed is approximately 90000 mm;

[0088] 4. The theoretical tolerance between the thirty-two-story building and the track mechanism installation is (90000 - 89977.2) mm = -22.8 mm;

[0089] 5. The theoretical tolerance between the ninety-two-story building and the track mechanism installation is -(22.8 * 3) mm = -68.4 mm;

[0090] 6. After the upper pedal of the external frame is leveled, the center distance between the end face of the track mechanism and the center of the second pulley on the driven mechanism is approximately 300 mm ( Figure 12 represented by the letter H in the figure);

[0091] 7. If it is a ninety-two-story building and the external frame of this patent is leveled, the surplus of the rack stroke = (300 - 68.4) mm = 231.6 mm;

[0092] 8. In actual operation of the track mechanism, the cumulative installation tolerance should be added. The cumulative installation tolerance of the three-layer track mechanism is approximately (+1) mm to (+2) mm. Therefore, the total installation size of the three-layer track mechanism is approximately equal to 9000 mm;

[0093] 9. Therefore, the theoretical three-layer combined track mechanism can be repeatedly installed and applied to a 200-story building. In actual situation, the cumulative tolerance should be added. Therefore, the number of installation floors is not limited.

[0094] The second design intention of this solution:

[0095] The external frame is lifted and lowered, and the three-layer track mechanism is repeatedly applied for displacement installation;

[0096] When the external frame is in the leveled state of the pedal and the external frame needs to rise, the track mechanism must be installed on the fourth floor of the external frame. If not, it means that the track mechanism is installed on the bottommost floor of the external frame, but there is no pulley acting on the track on this floor. The track mechanism on this floor should be removed and installed on the fourth floor of the external frame; when the external frame needs to descend, the displacement installation of the track mechanism is opposite to that during rising. Therefore, only three-layer track mechanisms are required, and the external frame of any number of floors can be lifted and lowered to the designated position.

[0097] The third design intention of this solution:

[0098] One driving mechanism and two driven mechanisms are installed on each column of the track mechanism, mainly to enhance the reliability, stability and safety of the external scaffold application; and the three mechanisms are distributed on two layers of the track mechanism, mainly to facilitate one layer of the track mechanism to be used for transferring floors, and the disassembly and assembly of the track mechanism can be carried out inside the fourth-layer external scaffold and the first-layer external scaffold.

[0099] This product overcomes the shortcomings of other external scaffolds, and the comparison is as follows:

[0100] 1. When using this product, after the casting is completed, the external scaffold can be lowered for external wall operations until all external wall construction is completed;

[0101] 2. When using this product, the lifting and lowering stroke of the external scaffold can be numerically controlled, and the stroke can be accurate to 1 mm;

[0102] 3. When using this product, it has good mobility. Every two driving devices form a group to lift and lower the external scaffold. Each group can be lifted and lowered independently according to requirements without affecting safety, and control balance synchronization can be achieved between groups;

[0103] 4. This product can select driving methods such as servo motors, stepper motors, AC motors, DC motors, and hydraulic motors according to the requirements of the user. The driving coupling gear 23 travels on the rack 11, and the operation is stable;

[0104] 5. This product uses an optical encoder to measure the lifting and lowering stroke, which is stable, accurate, and the stroke is numerically controlled;

[0105] 6. This product can adopt PLC program control, with stable performance, convenient maintenance, high reliability, automatic text prompt alarm for abnormal points, and high efficiency in troubleshooting faults.

[0106] At present, for the external scaffold (climbing scaffold) of a building, because the power is an electric hoist, when the external scaffold is lifted, the steel wire rope has a driving force on the external scaffold, but the driving balance of each electric hoist is poor; and when it needs to be lowered, the electric hoist has no driving force on the external scaffold, and only relies on the electric hoist to control the length of the steel cable, and the external scaffold descends by its own weight, and the balance of the external scaffold cannot be controlled at all, and the external scaffold is extremely easy to twist. Therefore, in actual use, it cannot be lowered and operated.

[0107] For this patent, gear-rack coupling drive is adopted, and the external scaffold runs up and down freely; for a 30-story building, it takes about half a year to complete the casting; and the subsequent external wall construction takes at least more than half a year; therefore, each installation of the external scaffold of this patent can be used until the building construction is completed, and the application time of the external scaffold of this patent is more than twice that of the existing climbing scaffold.

[0108] At present, for external wall construction, basically after the climbing scaffold is removed, a hanging basket is installed separately, which is labor-consuming, has a low safety factor, and poor balance stability.

[0109] In summary, a driving device and an external building scaffold provided by the present invention, through the cooperation of a steel pipe, a rack, a first pulley assembly, a coupling gear, and a double-stage worm and worm gear reducer, enable the driving mechanism to slide stably on the track mechanism, thereby realizing stable lifting and lowering; due to the adoption of a double-stage worm and worm gear reducer, it can automatically enter the double-stage braking state after the driving stops, thus ensuring the safety and reliability of the use of the driving device; the driving device designed in this solution can be used for concrete pouring and other external wall projects until all external wall operations are completed, and the utilization rate is more than twice that of the existing climbing scaffolds; applying the driving device designed in this solution to external wall operations, stable lifting and lowering are achieved by matching with a tower and a floor frame, improving the running stability, safety and reliability.

[0110] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A driving device, characterized in that, It includes an orbital mechanism and a driving mechanism. The driving mechanism is installed on the orbital mechanism and is slidably connected to the orbital mechanism. The orbital mechanism includes a rack and two parallel steel pipes. The rack is installed on the steel pipes and the extending direction of the rack is the same as that of the steel pipes. The driving mechanism includes a first mounting seat. On one side of the first mounting seat, there are two sets of first pulley assemblies and a coupling gear. The two sets of first pulley assemblies are symmetrically arranged at the opposite ends of one side of the first mounting seat respectively. The coupling gear is located between the two sets of first pulley assemblies. The first pulley assembly includes two juxtaposed first pulleys. Both of the two steel pipes and the rack are located between the two first pulleys and the two steel pipes are respectively slidably connected to the corresponding first pulleys. The coupling gear meshes with the rack; On the opposite side of one side of the first mounting seat, there is a double-stage worm and worm gear reducer. One end of the double-stage worm and worm gear reducer passes through the first mounting seat and is connected to the coupling gear; On one side of the first mounting seat, there is also a first braking mechanism. The first braking mechanism is located between the two sets of first pulley assemblies. The first braking mechanism includes a first brake bolt, a first brake rocker arm, a first screw rod, a first connecting block, a first brake cover, a first brake tooth and a first fixing rod. The first brake cover is fixedly arranged on one side of the first mounting seat. The first brake tooth is located inside the cavity of the first brake cover and the meshing end of the first brake tooth extends outside the first brake cover. One end of the first screw rod extends into the cavity of the first brake cover and is connected to the first brake tooth. One end of the first brake rocker arm is hinged to one end of the first connecting block. The opposite end of one end of the first connecting block is fixedly connected to the first brake cover. One end of the first fixing rod passes through the first brake rocker arm and the first brake cover in sequence and is fixedly connected to the first brake tooth. There is a first fixing block on the first brake cover. The first brake bolt is hinged to the first fixing block. There is a first strip-shaped groove on the outer wall of the first brake cover. One end of the first brake bolt extends into the first strip-shaped groove; It further includes a driven mechanism. The driven mechanism is installed on the orbital mechanism and is slidably connected to the orbital mechanism. The driven mechanism includes a second mounting seat. On one side of the second mounting seat, there are two sets of second pulley assemblies. The two sets of second pulley assemblies are symmetrically arranged at the opposite ends of one side of the second mounting seat respectively. The second pulley assembly includes two juxtaposed second pulleys. Both of the two steel pipes and the rack are located between the two second pulleys and the two steel pipes are respectively slidably connected to the corresponding second pulleys; On one side of the second mounting seat, there are also two sets of second safety clamping angle assemblies. The two sets of second safety clamping angle assemblies are symmetrically arranged between the two sets of second pulley assemblies. The second safety clamping angle assembly includes two second limiting blocks. There is a second groove for the steel pipe to pass through on the second limiting block; On one side of the second mounting base, there is also a second braking mechanism, which is located between two groups of second pulley assemblies. The second braking mechanism includes a second brake bolt, a second brake rocker arm, a second screw rod, a second connecting block, a second brake cover, a second brake gear and a second fixing rod. The second brake cover is fixedly arranged on one side of the second mounting base. The second brake gear is located inside the second brake cover, and the meshing end of the second brake gear extends to the outside of the second brake cover. One end of the second screw rod extends into the inner cavity of the second brake cover and is connected to the second brake gear. One end of the second brake rocker arm is hinged to one end of the second connecting block. The other end of the second connecting block opposite to one end is fixedly connected to the second brake cover. One end of the second fixing rod sequentially passes through the second brake rocker arm and the second brake cover and is fixedly connected to the second brake gear. There is a second fixing block on the second brake cover. The second brake bolt is hinged to the second fixing block. There is a second strip-shaped groove on the outer wall of the second brake cover. One end of the second brake bolt extends into the second strip-shaped groove.

2. The drive device according to claim 1, characterized in that On one side of the first mounting base, there are also two groups of first safety corner holders. The two groups of first safety corner holders are symmetrically arranged between two groups of first pulley assemblies. The first safety corner holder includes two first limiting blocks, and a first groove for a steel pipe to pass through is formed on the first limiting block.

3. The drive device according to claim 1, characterized in that, On one side of the first mounting base, there is also a rack pressing wheel. The rack pressing wheel is arranged opposite to the coaxial gear. The rack is located between the rack pressing wheel and the coaxial gear, and the rack pressing wheel is in contact with the rack.

4. A building exterior scaffold, characterized in that, It includes more than two tower frames, more than two layer frames and the driving device according to any one of claims 1-3; Two of the tower frames and one layer frame form an outer layer frame. The driving mechanism of the driving device is installed on the tower frame, and the track mechanism of the driving device is installed on an external wall.

5. The building exterior scaffold according to claim 4, characterized in that, The track mechanism is connected to the external wall through a mounting mechanism. The mounting mechanism includes a track adjustable bracket, a pre-embedded part, an eccentric hole sleeve, a gasket and a third screw rod. The pre-embedded part is fixedly arranged on the external wall. A through hole is formed on the track adjustable bracket. The eccentric hole sleeve is arranged in the through hole. One end of the third screw rod sequentially passes through the gasket and the eccentric hole sleeve and is threadedly connected to the pre-embedded part.

6. The building exterior scaffold according to claim 4, characterized in that, The tower frame is a hollow cube. A tower shoulder is connected to one end of the tower frame. Adjacent layers of tower frames are connected through the tower shoulder. The layer frame is fixedly sleeved outside the tower shoulder.

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