CN114319825A

CN114319825A - Scaffold for building external wall construction

Info

Publication number: CN114319825A
Application number: CN202111447151.8A
Authority: CN
Inventors: 姚丹; 王孟; 冯娟; 赵丽红; 张雪江; 王岩; 陈妞; 张渊博; 林之浩; 李佩涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-04-12

Abstract

The invention belongs to the technical field of scaffolds, and discloses a scaffold for building external wall construction, which comprises a support piece, wherein a toothed plate sleeve is fixedly connected to the side end of the support piece, a first T-shaped sliding groove is formed in the upper end of the toothed plate sleeve, a first T-shaped sliding block is slidably connected inside the first T-shaped sliding groove, a toothed plate is fixedly connected to the rear end of the first T-shaped sliding block, a workbench is fixedly connected to the upper end of the toothed plate, a motor base is fixedly connected to the inner wall of the support piece on the right side, a self-locking motor is fixedly connected to the upper end of the motor base, a cross-shaped sliding groove is formed in the side end of the support piece on the left side, a supporting bar is slidably connected inside the cross-shaped sliding groove, the lower end of the supporting bar is rotatably connected with a lead screw, the lead screw is in threaded connection with an extrusion plate, the lead screw penetrates through a base, a third T-shaped sliding groove is formed in the base, a third T-shaped sliding block is slidably connected inside the third T-shaped sliding groove, and the upper end of the third T-shaped sliding block is fixedly connected with the extrusion plate, the invention realizes convenient lifting of the scaffold, and simultaneously reinforces the lifted scaffold, thereby improving the construction safety.

Description

Scaffold for building external wall construction

Technical Field

The invention belongs to the technical field of scaffolds, and particularly relates to a scaffold for building exterior wall construction.

Background

The scaffold is a working platform which is erected for ensuring that each construction process is smoothly carried out. Divide into outer scaffold frame, interior scaffold frame according to the position of setting up, can divide into wood scaffold frame, bamboo scaffold frame, steel pipe scaffold frame according to the material difference, divide into pole setting formula scaffold frame, bridge type scaffold frame, gate-type scaffold frame, suspension type scaffold frame, hanging scaffold frame, choose formula scaffold frame, climb formula scaffold frame according to the structural style, the wide application of sending out is in various building construction fields.

However, at present, it is comparatively arduous when common construction scaffold frame goes up and down, and the intensity of labour who goes up and down is big, and operability is high, influences the efficiency of scaffold frame construction, and goes up and down the back scaffold frame focus and uprise, and easy unstability also need fix scaffold frame lift platform, consequently provides a convenient lift to carry out the construction scaffold device fixed to scaffold frame lift platform after going up and down.

Based on the technical scheme, the invention designs the scaffold for building outer wall construction to solve the problems.

Disclosure of Invention

The scaffold for building exterior wall construction has the advantages of ensuring the stability of the scaffold in the using process, reducing the risk coefficient in the construction process and reducing the gravity center of the scaffold.

In order to achieve the purpose, the invention provides the following technical scheme: a scaffold for building outer wall construction comprises a support piece, wherein a toothed plate sleeve is fixedly connected to the side end of the support piece, a first T-shaped sliding groove is formed in the upper end of the toothed plate sleeve, a first T-shaped sliding block is slidably connected to the inside of the first T-shaped sliding groove, a toothed plate is fixedly connected to the rear end of the first T-shaped sliding block, a workbench is fixedly connected to the upper end of the toothed plate, a third gear is meshed with the toothed plate, the third gear is meshed with a first gear and a second gear, the support piece is symmetrically provided with two support pieces which are respectively a left support piece and a right support piece, a motor base and a first bearing base are fixedly connected to the inner wall of the support piece on the right side, a self-locking motor is fixedly connected to the upper end of the motor base, a first gear is fixedly connected to the output shaft end of the self-locking motor, the inside of the first bearing base is rotatably connected with the shaft end of the first gear, and a second gear is meshed with the first gear, the lower end of the supporting piece is provided with a second T-shaped sliding groove, a second T-shaped sliding block is connected inside the second T-shaped sliding groove in a sliding manner, the side end of the second T-shaped sliding block is fixedly connected with the toothed plate, the inner wall of the left supporting piece is fixedly connected with a second bearing seat, the inside of the second bearing seat is rotatably connected with the shaft end of a second gear, the side end of the left supporting piece is provided with a cross sliding groove, the inside of the cross sliding groove is connected with a supporting bar in a sliding manner, the upper end of the supporting bar is fixedly connected with the lower end of the workbench, the inner wall of the workbench is hinged with a door plate, the lower end of the supporting bar is penetrated with a lead screw, the lead screw is connected with an extrusion plate in a threaded manner, the lead screw is penetrated with a base, the lead screw penetrates through the supporting bar and is connected with the supporting piece in a sliding manner, one end of the lead screw, which is far away from the extrusion plate, is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the utility model discloses a gear unreeling device, including base, support piece, bearing seat, unwinding shaft, unwinding gear, first T shape spout, third T shape spout has been seted up to base inside, the inside sliding connection of third T shape spout has third T shape slider, third T shape slider upper end and stripper plate fixed connection, be provided with in the support piece and be used for focus adjustment mechanism, focus adjustment mechanism include a set of with primary shaft bearing parallel arrangement's bracing piece, it unreels the axle to rotate between the bracing piece, it unreels the reel to be provided with on the unreeling shaft, it is provided with on unreeling the reel and unreels the steel cable to unreel the winding, it is provided with the counterweight to unreel the steel cable free end, the first gear that unreels of fixedly connected with on self-locking motor's the output shaft, unreel the epaxial be provided with the first second that unreels gear meshing sets up unreels the gear.

As a preferable technical scheme of the invention, two first T-shaped sliding grooves and two first T-shaped sliding blocks are arranged in the toothed plate sleeve and are symmetrically distributed on two sides of the toothed plate. During operation, the self-locking motor starts, drives first gear revolve, finally makes the pinion rack rise, and when the pinion rack rose in the pinion rack cover, the first T shape slider in the first T shape spout slided, and first T shape spout has limiting displacement to first T shape slider, lets the pinion rack steadily rise promptly, can not acutely rock in the pinion rack cover.

As a preferred technical scheme of the present invention, two third gears, two toothed plates and two toothed plate sleeves are symmetrically arranged, and the inside of the supporting member is rotatably connected with the third gears. During operation, the self-locking motor starts to drive the first gear to rotate, the first gear rotates to drive the second gear to rotate, meanwhile, the first gear drives the third gear on the right side to rotate, the second gear drives the third gear on the left side to rotate, the symmetrical toothed plates are enabled to ascend simultaneously, and finally stable ascending of the workbench is achieved.

As a preferred technical scheme of the invention, the two cross sliding grooves and the two supporting bars are symmetrically distributed in the front and the back of the toothed plate sleeve. The during operation rises as the pinion rack, drives the workstation back that rises, meanwhile, because the workstation lower extreme is fixed with the support bar, the support bar in the cross spout also upwards slides along with it to driving the base and rising, support bar and base shift up the back, adapted to the height of workstation, convenient after consolidate the support bar.

As a preferred technical scheme, the rear end of the second bevel gear is fixedly connected with a connecting shaft, and the rear end of the connecting shaft is fixedly connected with a rocking handle. During operation, realize rising when the workstation, the support bar shifts up, the drive base, the lead screw shifts up along the position of cross spout, constructor can climb up stair and wave the rocking handle, make the connecting axle rotate, drive the rotation of second bevel gear, the second gear drives first bevel gear and rotates, make the lead screw rotate, the third T shape slider in the third T shape spout slides, drive the stripper plate and remove to support piece, third T shape slider has the spacing effect to the removal of stripper plate simultaneously, make the stripper plate get into in the cross spout and contact support piece, under the effect of frictional force, the stripper plate chucking of L type is in the cross spout, the stripper plate obtains fixedly, the fixing of support bar position has been realized promptly.

As a preferred technical scheme of the invention, the front end of the supporting piece is fixedly connected with two stairs which are symmetrically distributed on the front side and the rear side of the workbench, and the height of the stairs is higher than that of the workbench. During operation, after the height of the workbench is adjusted by the self-locking motor, as the height of the stair is higher than that of the workbench, constructors can climb up the workbench by utilizing the stair, and the rocking handle can be rotated to fix the supporting bars in the cross sliding grooves when climbing up the stair.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through the matching use of the toothed plate sleeve, the cross sliding groove, the workbench, the self-locking motor, the first gear, the toothed plate, the first T-shaped sliding groove, the first T-shaped sliding block, the second gear and the third gear teeth, the self-locking motor is started to drive the first gear to rotate, the first gear drives the right third gear to rotate and simultaneously drives the second gear to rotate, so that the left third gear of the second gear rotates, and finally the third gear rotates to drive the toothed plate to rotate.

2. The invention can realize the rotation of the connecting shaft by rotating the rocking handle through the matching use of the supporting piece, the stair, the gear plate sleeve, the cross sliding groove, the supporting strip, the screw rod, the base, the first bevel gear, the second bevel gear, the rocking handle, the connecting shaft, the workbench, the third T-shaped sliding groove and the third T-shaped sliding block, so as to drive the second bevel gear to rotate and drive the screw rod to rotate, because the third T-shaped sliding groove and the third T-shaped sliding block limit the movement of the extrusion plate, after the screw rod rotates, the extrusion plate moves into the cross sliding groove and contacts with the supporting piece, when the L-shaped extrusion plate closely contacts with the supporting piece, the extrusion plate is fixed under the action of friction force, even if the supporting strip in the cross sliding groove is fixed, the supporting strip, the workbench and the supporting piece form a triangular stable structure, the workbench after lifting is reinforced, so that the lifting workbench is more stable, the problem of scaffold frame lift back focus uprise, easy unstability is solved, realized fixing scaffold frame work platform after the lift, improved the security.

3. When staff control self-locking motor drives first gear revolve and then drives work platform and shift up, self-locking motor drives first gear revolve of unreeling equally, first gear that unreels drives the second and unreels gear revolve, thereby it rotates to drive the axle of unreeling, the axle of unreeling rotation direction is opposite with the rotation direction of motor output shaft this moment, when work platform rose, self-locking motor can drive the axle of unreeling and unreel, thereby make the weight member descend, thereby make the focus of whole scaffold frame balanced, the condition that leads to the scaffold frame head overweight easily to empty can not appear owing to excessively shifting up.

4. Through setting up focus adjustment mechanism, when work platform reachd the take-up weight, the balancing weight descends, and under the effect of balancing weight, unreels the axle and can have the moment of torsion, and unreel the axle the moment of torsion can unreel gear transmission to self-locking motor's output shaft through first unreeling gear and second on, can reduce self-locking motor because the produced load of work platform action of gravity to reach the effect that improves self-locking motor life.

5. Because of the arrangement of the gravity center adjusting mechanism, the output shaft of the self-locking motor can have torque generated by the gravity of the counterweight, the torque acts in the opposite direction to the torque due to the weight of the work platform and the weight of the worker, meanwhile, in the descending process of the working platform, the counterweight part rises, friction force is generated between the counterweight part and the limiting groove, the friction force can increase the torque acted on the unwinding shaft by the gravity of the counterweight part, namely, the torque acted on the output shaft of the self-locking motor generated by the gravity of the counterweight part and the friction force can balance more torque acted on the output shaft of the self-locking motor by the gravity of the working platform and workers, and the working platform still falls when the current torque is less than the latter torque, but the working platform can stably descend because free falling body motion cannot be carried out in the falling process, so that the damage of workers on the working platform caused by free falling body is avoided; when the torque of the former is completely balanced by the torque of the latter, the working platform still cannot fall even if the self-locking function of the self-locking motor fails, so that the gravity center adjusting mechanism can also play a role in falling prevention.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 3 is a right side view of the present invention;

FIG. 4 is a rear view of the present invention;

FIG. 5 is a schematic sectional view of a portion of the structure of the present invention in a top view;

fig. 6 is a sectional view of the internal structure of the tooth plate sleeve of the present invention;

FIG. 7 is an enlarged view of portion B of FIG. 5 in accordance with the present invention;

FIG. 8 is an enlarged view of portion C of FIG. 6 in accordance with the present invention;

FIG. 9 is an enlarged view of portion D of FIG. 6 in accordance with the present invention;

FIG. 10 is a bottom view of the present invention;

FIG. 11 is a left side view of the present invention;

FIG. 12 is an enlarged view of section E of FIG. 11 in accordance with the present invention;

FIG. 13 is an enlarged view of portion F of FIG. 11 in accordance with the present invention;

FIG. 14 is a schematic cross-sectional view of the structural relationship of the stripper plate, lead screw and support member of the present invention;

fig. 15 is a schematic structural diagram of the gravity adjusting mechanism of the present invention.

In the figure: 1. a support member; 2. a staircase; 3. a gear plate sleeve; 4. a cross-shaped chute; 5. a supporting strip; 6. a screw rod; 7. a base; 8. a first bevel gear; 9. a second bevel gear; 10. a rocking handle; 11. a connecting shaft; 12. A work table; 13. a door panel; 14. a motor base; 15. a self-locking motor; 16. a pressing plate; 17. a first gear; 18. a first bearing housing; 19. a second bearing housing; 20. a toothed plate; 21. a first T-shaped chute; 22. A first T-shaped slider; 23. a second T-shaped chute; 24. a second T-shaped slider; 25. a second gear; 26. A third gear; 27. a third T-shaped chute; 28. a third T-shaped slider; 29. a support bar; 30. unwinding the reel; 31. unwinding a steel cable; 32. a counterweight; 33. a first unwinding gear; 34. a second unwinding gear; 35. placing the winding drum; 36. a limiting ring; 37. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 14, the invention provides a scaffold for building exterior wall construction, which comprises a support member 1, a toothed plate sleeve 3 is fixedly connected to a side end of the support member 1, a first T-shaped sliding groove 21 is formed in an upper end of the toothed plate sleeve 3, a first T-shaped sliding block 22 is slidably connected to the inside of the first T-shaped sliding groove 21, a toothed plate 20 is fixedly connected to a rear end of the first T-shaped sliding block 22, a workbench 12 is fixedly connected to an upper end of the toothed plate 20, a third gear 26 is engaged with the toothed plate 20, a first gear 17 and a second gear 25 are engaged with the third gear 26, two support members 1 are symmetrically arranged, which are respectively a left support member 1 and a right support member 1, a motor base 14 and a first bearing base 18 are fixedly connected to an upper end of the motor base 14, a first gear 17 is fixedly connected to an output shaft end of the self-locking motor 15, the inside of the first bearing base 18 is rotatably connected to a shaft end of the first gear 17, the first gear 17 is engaged with a second gear 25, the lower end of the support member 1 is provided with a second T-shaped sliding groove 23, the inside of the second T-shaped sliding groove 23 is connected with a second T-shaped sliding block 24 in a sliding manner, the side end of the second T-shaped sliding block 24 is fixedly connected with the toothed plate 20, the inner wall of the left support member 1 is fixedly connected with a second bearing seat 19, the inside of the second bearing seat 19 is rotatably connected with the shaft end of the second gear 25, the side end of the left support member 1 is provided with a cross sliding groove 4, the inside of the cross sliding groove 4 is connected with a support bar 5 in a sliding manner, the upper end of the support bar 5 is fixedly connected with the lower end of the workbench 12, the inner wall of the workbench 12 is hinged with a door plate 13, the lower end of the support bar 5 is penetrated with a screw rod 6, the screw rod 6 is in threaded connection with an extrusion plate 16, the screw rod 6 is penetrated with a base 7, the screw rod 6 is penetrated through the support bar 5 and is in a sliding connection with the support member 1, and one end of the screw rod 6 far away from the extrusion plate 16 is fixedly connected with a first bevel gear 8, the first bevel gear 8 is engaged with the second bevel gear 9, a third T-shaped sliding groove 27 is formed in the base 7, a third T-shaped sliding block 28 is connected in the third T-shaped sliding groove 27 in a sliding mode, and the upper end of the third T-shaped sliding block 28 is fixedly connected with the extrusion plate 16.

Wherein, first T shape spout 21, the first T shape slider 22 in the pinion rack cover 3 are provided with two, and the symmetric distribution is in pinion rack 20 both sides. During operation, self-locking motor 15 starts, drives first gear 17 and rotates, finally makes pinion rack 20 rise, and when pinion rack 20 rose in pinion rack cover 3, first T shape slider 22 in the first T shape spout 21 slided, and first T shape spout 21 has the limiting displacement to first T shape slider 22, lets pinion rack 20 stably rise promptly, can not acutely rock in pinion rack cover 3.

Wherein, the third gear 26, the toothed plate 20 and the toothed plate sleeve 3 are symmetrically arranged in two, and the inside of the support member 1 is rotatably connected with the third gear 26. During operation, the self-locking motor 15 starts to drive the first gear 17 to rotate, the first gear 17 rotates to drive the second gear 25 to rotate, meanwhile, the first gear 17 drives the third gear 26 on the right side to rotate, the second gear 25 drives the third gear 26 on the left side to rotate, so that the symmetrical toothed plates 20 simultaneously ascend, and finally, the workbench 12 stably ascends.

Meanwhile, considering that in a working state, the working platform and the workers both rise to a certain height, and at this time, the center of gravity of the whole scaffold moves upwards due to the fact that the working platform and the workers both rise, and at this time, the situation that the head of the scaffold is overweight and easy to incline down occurs, a center-of-gravity adjusting mechanism for adjusting the center of gravity is arranged in the support member 1, the center-of-gravity adjusting mechanism comprises a group of support rods 29 which are arranged in parallel with the first bearing seat 18, a unreeling shaft 30 is rotatably arranged between the support rods 29, a unreeling cylinder 35 is fixedly arranged on the unreeling shaft 30, an unreeling steel cable 31 is arranged on the unreeling cylinder 35, a counterweight member 32 is arranged at the free end of the unreeling steel cable 31, and considering that in order to avoid the situation that the unreeling steel cable 31 can swing back and forth in the movement process of the counterweight member 32, a limiting ring 36 for limiting the moving position of the unreeling steel cable 31 is arranged on the support member 1, the output shaft of the self-locking motor 15 is fixedly connected with a first unwinding gear 33, the unwinding shaft 30 is fixedly provided with a second unwinding gear 34 meshed with the first unwinding gear 33, and the diameter of the first unwinding gear 33 is smaller than that of the second unwinding gear 34. When the staff controls self-locking motor 15 to drive first gear 17 and rotate and then drive work platform and shift up, self-locking motor 15 drives first unwinding gear 33 and rotates equally, first unwinding gear 33 drives second unwinding gear 34 and rotates, thereby drive unwinding shaft 30 and rotate, the rotation direction of unwinding shaft 30 and the rotation direction of motor output shaft are opposite this moment, when work platform rises, self-locking motor 15 can drive unwinding shaft 30 and unreel, thereby make counterweight 32 descend, thereby make the focus of whole scaffold frame balanced, the condition that leads to the scaffold frame head overweight easily to empty can not appear owing to excessively shifting up.

Further, considering that the weight 32 may shake between the supporting members 1 during use, the weight 32 may shift the center of gravity of the entire scaffold during shaking, and therefore the movement space of the weight needs to be limited. A limiting groove 37 for the movement of the weight elements is arranged on one side of the supporting element 1 facing the self-locking motor 15, the weight elements 32 are connected in the limiting groove 37 in a sliding manner, and the limiting groove 37 is formed by two U-shaped groove openings which are opposite.

When the working platform reaches a required height, the self-locking motor 15 is locked by a worker, at the moment, due to the action of the gravity of the working platform and the action of the gravity of the worker on the working platform, the toothed plate 20 tends to descend, the gravity of the working platform and the gravity of the worker on the working platform are transmitted to the second gear 25 and the third gear 26 through the toothed plate 20, so that the torque generated by the gravity of the working platform and the worker is transmitted to the first gear 17, namely to the output shaft of the self-locking motor 15, the torque transmitted to the first gear 17 by the second gear 25 and the first gear 17 is the same-direction torque, the torque generated by the gravity of the working platform and the gravity of the worker is called as torque a, so that the output shaft of the self-locking motor 15 receives a unidirectional torque, and the output shaft of the self-locking motor 15 can only rely on the self-locking function of the self-locking motor 15 in order to prevent the rotation of the output shaft of the self-locking motor 15, this causes a large load to the self-locking motor 15, and causes a large damage to the self-locking motor 15 when used for a long time. However, through setting up the focus adjustment mechanism, when work platform reachs a take-up height, the balancing weight descends, and under the effect of balancing weight, unreel axle 30 can have the moment of torsion, and the moment of torsion of unreeling axle 30 can unreel gear 33 and second through first unreeling on gear 34 transmits to self-locking motor 15's the output shaft, down to this because the moment of torsion that balancing weight action of gravity transmitted to self-locking motor 15 output shaft is moment of torsion B, moment of torsion B and moment of torsion A opposite direction, consequently moment of torsion A on self-locking motor 15's the output shaft can be balanced a part or moment of torsion A can be balanced with moment of torsion B by moment of torsion B, consequently, the load of self-locking motor 15 can be reduced, thereby reach the effect that improves self-locking motor 15 life.

Further, considering that when working at high altitude, if the self-locking motor 15 fails, the self-locking effect is lost, the working platform on which the worker stands will fall quickly, when the working platform falls down, the toothed plate 20 will drive the third gear 26 to rotate, because the self-locking motor 15 loses the self-locking function, the output shaft of the self-locking motor 15 will rotate quickly under the action of the torque a, and in this embodiment, because of the arrangement of the gravity center adjusting mechanism, the torque B opposite to the action direction of the torque a will exist on the output shaft of the self-locking motor 15, and meanwhile, in the descending process of the working platform, the weight 32 will rise, friction will be generated between the weight 32 and the limiting groove 37, the friction will make the torque acting on the unwinding shaft 30 become larger, that is, the torque B transmitted to the output shaft of the self-locking motor 15 will become larger, that is, more torque a will be balanced by the torque B, when the torque A is larger than the torque B, the working platform still falls, but free falling body movement cannot be performed in the falling process of the torque B, and the working platform can stably descend, so that the damage of workers on the working platform due to free falling is avoided; when the torque A is completely balanced by the torque B, the working platform still cannot fall even if the self-locking function of the self-locking motor 15 fails, so that the gravity center adjusting mechanism can also play a role in falling prevention.

Further, the weight 32 may be provided as an integral body, or may be provided as a separate body. When setting up the weight 32 for split type, whole weight 32 can divide into a plurality of balancing weights, and it is comparatively suitable that the staff can decide how many balancing weights need to be placed on the weight 32 according to how many of the number of people on the work platform.

Wherein, cross spout 4, support bar 5 are provided with two, and the symmetric distribution is around pinion rack cover 3. During operation, when the pinion rack 20 rises, drive the back that workstation 12 rises, meanwhile, because workstation 12 lower extreme is fixed with support bar 5, support bar 5 in the cross spout 4 also upwards slides along with it to driving base 7 and rising, after support bar 5 and base 7 moved up, adapted to the height of workstation 12, it is convenient afterwards to consolidate support bar 5.

Wherein, the rear end of the second bevel gear 9 is fixedly connected with a connecting shaft 11, and the rear end of the connecting shaft 11 is fixedly connected with a rocking handle 10. When the workbench 12 ascends, the supporting bar 5 moves upwards to drive the base 7 and the screw rod 6 to move upwards along the position of the cross sliding groove 4, a constructor can climb up the stairs 2 to shake the rocking handle 10 to enable the connecting shaft 11 to rotate to drive the second bevel gear 9 to rotate, the second gear 25 drives the first bevel gear 8 to rotate to enable the screw rod 6 to rotate, the third T-shaped sliding block 28 in the third T-shaped sliding groove 27 slides to drive the extrusion plate 16 to move, meanwhile, the third T-shaped sliding block 28 has a limiting effect on the movement of the extrusion plate 16, the extrusion plate 16 enters the lower end of the cross sliding groove 4, the extrusion plate 16 enters the cross sliding groove 4 and contacts the supporting piece 1, the L-shaped extrusion plate 16 is clamped in the cross sliding groove 4 under the action of friction force, the extrusion plate 16 is fixed, and the fixing of the position of the supporting bar 5 is achieved, and the reinforcement of the workbench is completed.

Wherein, support piece 1 front end fixedly connected with stair 2, and stair 2 are provided with two, and the symmetric distribution is both sides around workstation 12, and the height setting of stair 2 is higher than the height of workstation 12. When the lifting device works, after the height of the workbench 12 is adjusted by the self-locking motor 15, because the height of the stair 2 is higher than that of the workbench 12, a constructor can climb the workbench 12 by using the stair 2 and can rotate the rocking handle 10 to fix the supporting bars 5 in the cross sliding grooves 4 when climbing the stair 2.

The working principle and the using process of the invention are as follows:

when the device is used, firstly, the device is moved to one side of a construction wall body, so that the side, which is not shielded by the workbench 12, is close to the wall body, when the construction is required to the height of the wall body, the self-locking motor 15 can be opened, the first gear 17 rotates, the first gear 17 drives the second gear 25 to rotate and simultaneously drives the right third gear 26 to rotate, the second gear 25 drives the left third gear 26 to rotate, the symmetrically-distributed third gears 26 finally drive the symmetrical toothed plates 20 to ascend, when the toothed plates 20 ascend, the first T-shaped sliding grooves 21 and the first T-shaped sliding blocks 22 play a limiting role on the toothed plates 20, so that the toothed plates 20 cannot shake violently in the toothed plate sleeve 3, meanwhile, the second T-shaped sliding blocks 24 in the second T-shaped sliding grooves 23 also ascend along with the toothed plates 20, when the toothed plates 20 ascend to a certain height, the second T-shaped sliding blocks 24 are shielded by the upper ends of the second T-shaped sliding grooves 23, when the toothed plate 20 rises to the highest position, the toothed plate 20 cannot be separated from the toothed plate sleeve 3, the toothed plate 20 also drives the workbench 12 to rise, namely, the scaffold is raised, when the self-locking motor 15 rotates reversely, the workbench 12 can be lowered, after the self-locking motor 15 stops rotating with electricity, the first gear 17 fixed at the output shaft end is self-locked, finally, the second gear 25 and the third gear 26 are fixed, the toothed plate 20 is fixed, namely, the height of the workbench 12 is fixed, the workbench 12 can drive the supporting bar 5 in the cross sliding groove 4 to rise after rising, and also drives the base 7 to rise, at the moment, constructors can climb up the symmetrical stair 2 to the workbench 12, enter the workbench 12 to construct a wall body by pushing the door plate 13, and when climbing up the stair 2, the constructors can rotate the rocking handle 10 rising along with the base 7, so that the second bevel gear 9 drives the first bevel gear 8 to rotate, further, the screw rod 6 is rotated, under the restriction of the third T-shaped sliding groove 27 and the third T-shaped sliding block 28, the L-shaped extrusion plate 16 enters the cross-shaped sliding groove 4 and contacts the support piece 1, under the action of friction force, the extrusion plate 16 is clamped in the cross-shaped sliding groove 4, the extrusion plate 16 is fixed, as the screw rod 6 penetrates through the lower end of the support strip 5, after the extrusion plate 16 is fixed, the support strip 5, the support piece 1 and the workbench 12 form a triangular stable structure, the reinforcement after the workbench 12 is lifted is completed, after the construction of a wall body is completed, when constructors get down from the stairs 2, the rocking handle 10 can be rotated to separate the L-shaped extrusion plate 16 from the support piece 1, then the self-locking motor 15 is reversed, the toothed plate 20 descends along with the rotation, and the height of the workbench 12 returns to the original position, the invention solves the problem that the common hand frame is laboursome time when lifted, meanwhile, the problems that the center of gravity of the scaffold is high after the scaffold is lifted and unstable are solved, the scaffold is convenient to lift, the working platform is reinforced after the scaffold is lifted, the labor intensity of construction is reduced, and the safety of scaffold building construction is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a scaffold frame for construction of building outer wall, includes support piece (1), its characterized in that: the side end of the support member (1) is fixedly connected with a toothed plate sleeve (3), a first T-shaped sliding groove (21) is formed in the upper end of the toothed plate sleeve (3), a first T-shaped sliding block (22) is connected inside the first T-shaped sliding groove (21) in a sliding manner, a toothed plate (20) is fixedly connected to the rear end of the first T-shaped sliding block (22), a workbench (12) is fixedly connected to the upper end of the toothed plate (20), a third gear (26) is meshed with the toothed plate (20), a first gear (17) and a second gear (25) are meshed with the third gear (26), the support member (1) is symmetrically provided with two support members (1) which are respectively arranged on the left side and the right side, a motor base (14) and a first bearing base (18) are fixedly connected to the inner wall of the support member (1) on the right side, and a self-locking motor (15) is fixedly connected to the upper end of the motor base (14), the output shaft end fixedly connected with first gear (17) of auto-lock motor (15), the inside axle head rotation with first gear (17) of first bearing frame (18) is connected, first gear (17) meshing has second gear (25), second T shape spout (23) have been seted up to support piece (1) lower extreme, the inside sliding connection of second T shape spout (23) has second T shape slider (24), second T shape slider (24) side and pinion rack (20) fixed connection, left support piece (1) inner wall fixedly connected with second bearing frame (19), the inside axle head rotation with second gear (25) of second bearing frame (19) is connected, and is left cross spout (4) have been seted up to support piece (1) side, cross spout (4) inside sliding connection has support bar (5), support bar (5) upper end and workstation (12) lower extreme fixed connection, the inner wall of the workbench (12) is hinged with a door plate (13), the lower end of the supporting bar (5) penetrates through a screw rod (6), the screw rod (6) is in threaded connection with an extrusion plate (16), the screw rod (6) penetrates through a base (7), the screw rod (6) penetrates through the supporting bar (5) and is in sliding connection with a supporting piece (1), one end, far away from the extrusion plate (16), of the screw rod (6) is fixedly connected with a first bevel gear (8), the first bevel gear (8) is meshed with a second bevel gear (9), a third T-shaped sliding groove (27) is formed in the base (7), a third T-shaped sliding groove (27) is internally and slidably connected with a third T-shaped sliding block (28), the upper end of the third T-shaped sliding block (28) is fixedly connected with the extrusion plate (16), a gravity center adjusting mechanism is arranged in the supporting piece (1), and the gravity center adjusting mechanism comprises a set of supporting rods (29) which are parallel to the first shaft (18), rotate between bracing piece (29) and be provided with unreel axle (30), it puts reel (35) to be provided with on unreeling axle (30), it is provided with on reel (35) and unreels steel cable (31) to unreel the winding, it is provided with counterweight (32) to unreel steel cable (31) free end, fixedly connected with first unreels gear (33) on the output shaft of self-locking motor (15), unreel the axle (30) on be provided with first second that unreels gear (33) meshing setting unreels gear (34).

2. The scaffold for construction of an exterior wall of a building according to claim 1, wherein: two first T-shaped sliding grooves (21) and two first T-shaped sliding blocks (22) are arranged in the toothed plate sleeve (3) and are symmetrically distributed on two sides of the toothed plate (20).

3. The scaffold for construction of an exterior wall of a building according to claim 1, wherein: the third gear (26), the toothed plate (20) and the toothed plate sleeve (3) are symmetrically arranged, and the third gear (26) is rotatably connected inside the supporting piece (1).

4. The scaffold for construction of an exterior wall of a building according to claim 1, wherein: the cross sliding grooves (4) and the supporting bars (5) are arranged in two numbers and are symmetrically distributed in the front and the back of the toothed plate sleeve (3).

5. The scaffold for construction of an exterior wall of a building according to claim 1, wherein: the rear end of the second bevel gear (9) is fixedly connected with a connecting shaft (11), and the rear end of the connecting shaft (11) is fixedly connected with a rocking handle (10).

6. The scaffold for construction of an exterior wall of a building according to claim 1, wherein: support piece (1) front end fixedly connected with stair (2), and stair (2) are provided with two, and the symmetric distribution is both sides around workstation (12), and the height setting of stair (2) is higher than the height of workstation (12).