CN210013441U

CN210013441U - But height-adjusting's stable form engineering construction scaffold

Info

Publication number: CN210013441U
Application number: CN201920804309.4U
Authority: CN
Inventors: 王诚; 罗涛; 张燕鹏; 姬法云; 裴文静
Original assignee: China Railway Construction Engineering Group Co Ltd
Current assignee: China Railway Construction Engineering Group Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-02-04
Anticipated expiration: 2029-05-30

Abstract

The application relates to the technical field of engineering construction equipment, and particularly discloses a stable engineering construction scaffold with adjustable height, which comprises a base, a scissor-type support frame and a lifting platform; the upper end and the lower end of the scissor type support frame are respectively connected with the lifting platform and the base; a motor is fixed on the base, the output end of the motor is fixedly connected with a transmission shaft with threads, the transmission shaft is in threaded connection with a transmission block, and the transmission block is fixedly connected with one side of the lower end of the scissor type support frame; two opposite sides of the base are provided with grooves, two stabilizing supports are respectively arranged at two ends in the grooves, and the stabilizing supports can be opened in a horizontal rotating mode relative to the grooves. The purpose of this patent is to solve the current scaffold height problem of not adjustable.

Description

But height-adjusting's stable form engineering construction scaffold

Technical Field

The utility model relates to an engineering construction equipment technical field, in particular to but height-adjusting's stable form engineering construction scaffold.

Background

The engineering construction is a special subject for accounting of the integrated accounting engineering cost of a building installation enterprise, and is characterized in that the engineering construction is carried out by carrying out new construction, extension and reconstruction activities on a construction project according to the requirements of a construction project design file, and four particulars such as labor cost, material cost, mechanical cost and other direct cost are set under the engineering construction. The scaffold is a common working platform which is set up for ensuring smooth progress of each construction process in engineering construction, however, many construction scaffolds are provided, the structure is simple, the construction scaffolds are spliced by supporting rods, the height adjustment can not be realized, and meanwhile, due to the spliced structure, poor stability and no complete protection facility, the construction personnel need to frequently go up and down the scaffold when the construction position needs to be changed, time and energy are wasted, no protection facility exists, and accidents that the scaffold turns over and collapses or the construction personnel fall down from the top end of the scaffold due to instability of the scaffold are complicated in the construction process.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a technical problem provide a but height-adjusting's stable form engineering construction scaffold, solve current scaffold height unadjustable problem.

In order to solve the above problem, the utility model discloses the technical scheme who adopts is: a stable type engineering construction scaffold with adjustable height comprises a base, a scissor type supporting frame and a lifting platform; one end of the base is provided with a lower horizontal sliding groove, and the bottom surface of the lifting platform is provided with an upper horizontal sliding groove matched with the lower horizontal sliding groove; the upper end of the scissor type supporting frame is provided with an upper fixing foot and an upper moving foot, and the lower end of the scissor type supporting frame is provided with a lower fixing foot and a lower moving foot; the upper fixed foot is hinged to one end, far away from the upper horizontal sliding groove, of the bottom surface of the lifting platform, the upper moving foot is limited in the upper horizontal sliding groove and can slide along the upper horizontal sliding groove, the lower fixed foot is hinged to the upper surface of the base, the lower moving foot is limited in the lower horizontal sliding groove and can slide along the lower horizontal sliding groove, a motor driven by a power supply is fixed on the base, the motor can rotate forwards and backwards, a motor steering switch for controlling the motor to rotate forwards and backwards is arranged on the lifting platform, the motor steering switch is electrically connected with the motor, the motor steering switch is pressed, the motor is rotated forwards after being electrified and then pressed, and the motor is rotated backwards after being electrified; the output end of the motor is fixedly connected with a transmission shaft with threads, the transmission shaft is connected with a transmission block through threads, and the transmission block is fixedly connected with the lower moving foot; two opposite sides of the base are provided with grooves, two stabilizing supports are arranged at two ends in each groove, one ends, far away from each other, of the two stabilizing supports in the same groove are connected with a groove pin shaft, and the stabilizing supports can be opened in a horizontal rotating mode around the pin shaft connection position.

The technical principle of the basic scheme is as follows: the motor rotates forwards to drive the transmission shaft to rotate forwards, the threads on the transmission shaft drive the transmission block to drive the lower moving foot to move downwards to fix the foot to be close to the lower moving foot, and therefore the shear type support frame extends to drive the lifting platform to ascend; the motor rotates reversely to drive the transmission shaft to rotate reversely, and the threads on the transmission shaft drive the transmission block to drive the lower moving foot to be away from the lower fixing foot, so that the shear type support frame contracts to drive the lifting platform to descend; after the stabilizing support in the groove is horizontally and outwards rotated and opened around the pin shaft joint, the stabilizing support and the base are matched to form a rigid whole with a large bottom area, and the effect of stabilizing and preventing the scaffold from tilting and overturning when the scaffold is too high is achieved.

The beneficial effect that this scheme produced is:

1. compare with the high non-adjustable of current scaffold, through corotation and reversal after motor steering switch control motor circular telegram in this scheme, rethread power switch control motor opens and stops, then rotates through the transmission shaft and drives the motion of transmission piece along the horizontal direction, makes the lower fixed foot of moving downwards of cutting fork formula support frame be close to or keep away from, thereby realizes extension or the shrink of support frame and drive lift platform upwards or move downwards, realizes the stable regulation to the scaffold height.

2. Stability with current scaffold is emptyd easily inadequately and is compared, sets up the outrigger through the recess at the scaffold base in this scheme, with the outrigger around the outside rotation of round pin hub connection department level open the back, the outrigger forms the rigidity of a big end area with the base cooperation wholly, has played the effect of stably and preventing the scaffold slope and overturn when the scaffold is too high.

Furthermore, guard railings are arranged around the lifting platform, guard doors are arranged on the guard railings, and the bottoms of the guard doors are connected with side pin shafts of the lifting platform.

When the protective door is closed, the protective door can play a role in protection, so that operators are prevented from falling; when constructor need get into or leave lift platform, constructor opens the guard gate and the top that makes the guard gate and ground contact of overturning downwards, and the guard gate can regard as the cat ladder to use, makes things convenient for operating personnel to board or leave lift platform.

Further, the top of the groove is provided with a support positioning hole for communicating the upper end of the bottom frame with the inside of the groove, and the stabilizing support is annularly provided with a plurality of support pin holes matched with the support positioning hole along the rotation center.

The rotation angle of the stabilizing support can be conveniently adjusted and the stabilizing support is limited.

Further, after the stabilizing support is unfolded, one end, away from the base, of the stabilizing support is provided with a supporting leg and a holding groove for holding the supporting leg, the supporting leg can be rotatably contained in the holding groove of the stabilizing support, a supporting leg positioning hole is formed in the side wall of the stabilizing support, a plurality of supporting leg pin holes matched with the supporting leg positioning hole are annularly arranged on the supporting leg along the rotation center, and a foot pad is arranged on the grounding end of the supporting leg.

When the ground unevenness, conveniently carry on spacingly through rotatory supporting legs and to the supporting legs to the angle between adjustment supporting legs and the outrigger, thereby realize that this scaffold can place steadily subaerial at unevenness.

Furthermore, the bottom of base is equipped with universal auto-lock wheel.

This scaffold is conveniently removed and can carry on spacingly to the scaffold, avoids this scaffold to slide and causes constructor to fall at the in-process that uses.

Further, the power is a storage battery fixed on the base, and a charging interface is arranged on the storage battery.

The motor can be powered by a storage battery and can also be powered by an external power supply.

Furthermore, a control switch is arranged on the lifting platform, the storage battery, the control switch and the motor are electrically connected, and the control switch is a power switch of the motor.

After the operator gets on the lifting platform, the control switch is started to electrify the motor and realize the lifting of the lifting platform.

Furthermore, an interlocking device is arranged on the guardrail on one side of the protective door, the interlocking device is connected with the control switch and the motor in series, and when the control switch is turned on and the interlocking device is pressed, the motor is electrified; when the control switch is closed or the interlocking device is not pressed, the motor is powered off; when the guard door is closed, the guard door can be pressed to the interlock.

The control switch is pressed, and after the protective door is closed and the interlocking device is extruded, the motor can be electrified to work, and the lifting platform can be lifted; if the protective door is suddenly opened due to accidents or misoperation in the working process, the interlocking device is not extruded any more, the interlocking device can cut off the power supply to stop the motor from rotating, and the lifting platform stops lifting to prevent accidents.

Drawings

Fig. 1 is a front view of the overall structure.

Fig. 2 is a top view of the base.

Fig. 3 is a partial view of the lift platform with the guard door open.

Fig. 4 is a partial view of the lift platform with the guard door closed.

Fig. 5 is a partial side view of a stabilizing brace supporting foot.

Fig. 6 is a partial top view of the support foot.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a base 1, a scissor type support frame 2, a lifting platform 3, a lower water smooth groove 4, an upper horizontal sliding groove 5, a motor 6, a transmission shaft 7, a transmission block 8, an upper fixing foot 21, an upper moving foot 22, a lower fixing foot 23, a lower moving foot 24, a protective guard 31, a protective door 32, a ladder 33, an interlocking device 34, a control switch 35, a groove 101, a stabilizing support 102, a support positioning hole 103, a support pin hole 104, a support leg 105, a support leg positioning hole 106, a support leg pin hole 107, a storage battery 108, a charging interface 109, a universal self-locking wheel 110 and a foot pad 111.

The embodiments are substantially as shown in figures 1 to 6 of the accompanying drawings:

a stable type engineering construction scaffold with adjustable height is shown in figure 1 and comprises a base 1, a scissor type supporting frame 2 and a lifting platform 3; the bottom symmetry of base 1 is provided with 4 universal auto-lock wheels 110, conveniently removes this scaffold and can carry on spacingly to this scaffold, avoids this scaffold to slide at the in-process that uses and causes constructor to fall. Two sides all offer along the recess 101 that the horizontal direction was arranged around base 1, and the both ends of recess 101 inside respectively are provided with a stabilizing support 102.

The ends of the two stabilizing supports 102 in the same groove 101, which are far away from each other, are pin-connected to the groove 101, so that the stabilizing supports 102 can be opened by rotating horizontally around the pin-connection. The stabilising bracket 102 cooperates with the base 1 to form a rigid whole of large footprint which acts to stabilise and prevent the scaffold tipping over when it is too high.

As shown in fig. 2, the top of the groove 101 is provided with a bracket positioning hole 103 for communicating the upper end of the base 1 with the inside of the groove 101, the bracket positioning hole 103 is arranged along the vertical direction, and the stabilizing bracket 102 is provided with 6 bracket pin holes 104 matching with the bracket positioning hole 103 along the rotation center in a ring shape. The angle of rotation of stabilizing support 102 is conveniently adjusted, then use with support pinhole 104 matched with pin to carry on spacingly to stabilizing support 102, increase the steadiness of this scaffold.

As shown in fig. 5 and 6, after the stabilizing support 102 is horizontally expanded, one end of the stabilizing support 102 away from the base 1 is rotatably connected with a supporting foot 105, one end of the stabilizing support 102 away from the base 1 is provided with an accommodating groove for accommodating the supporting foot 105, the supporting foot 105 is rotatably accommodated in the accommodating groove of the stabilizing support 102, the side wall of the stabilizing support 102 is provided with supporting foot positioning holes 106, the supporting foot 105 is annularly provided with 9 supporting foot pin holes 107 matched with the supporting foot positioning holes 106 along the rotation center, and after pins matched with the supporting foot pin holes 107 are inserted into the supporting foot positioning holes 106 and the supporting foot pin holes 107, the supporting foot 105 can be limited. When ground unevenness, conveniently through rotatory supporting legs 105 to suitable angle and carry on spacingly to supporting legs 105 to the angle between adjustment support foot and the outrigger 102, thereby realize that this scaffold can place steadily subaerial at unevenness. The grounding ends of the supporting legs 105 are provided with foot pads 111, so that the contact area between the supporting legs 105 and the ground is increased, and the scaffold is placed on the ground more stably.

As shown in fig. 1, a lower fixing plate is welded to the upper end surface of the base 1, the lower fixing plate is arranged in the vertical direction, a lower horizontal smooth groove 4 arranged in the horizontal direction is formed in the right end of the lower fixing plate, and the lower horizontal smooth groove 4 is a through groove. The bottom surface welding of lift platform 3 has an upper fixed plate, and upper fixed plate arranges along vertical direction, and last horizontal spout 5 has been seted up to the right-hand member of upper fixed plate, and last horizontal spout 5 is logical groove, and last horizontal spout 5 aligns with lower water smooth groove 4 all around.

The upper end of the scissor type support frame 2 is respectively fixed with an upper fixed foot 21 and an upper movable foot 22, and the lower end of the scissor type support frame 2 is respectively fixed with a lower fixed foot 23 and a lower movable foot 24; the upper fixing foot 21 is hinged to the left end of the upper fixing plate, the upper moving foot 22 is in a pin shape, the upper moving foot 22 comprises a head part and a straight rod part, the size of the head part of the upper moving foot 22 is larger than that of the upper horizontal sliding groove 5, the size of the straight rod part of the upper moving foot 22 is smaller than that of the upper horizontal sliding groove 5, and the straight rod part of the upper moving foot 22 penetrates through the upper horizontal sliding groove 5 and is welded at the right upper end of the scissor type support frame 2, so that the upper moving foot 22 is limited in the upper horizontal sliding groove 5 and can slide along the upper horizontal sliding groove 5.

The lower fixing foot 23 is hinged to the left end of the lower fixing plate, the lower moving foot 24 is in a pin shape, the lower moving foot 24 comprises a head part and a straight rod part, the size of the head part of the lower moving foot 24 is larger than that of the lower horizontal sliding groove 4, the size of the straight rod part of the lower moving foot 24 is smaller than that of the lower horizontal sliding groove 4, and the straight rod part of the lower moving foot 24 penetrates through the lower horizontal sliding groove 4 and is welded at the right lower end of the scissor type support frame 2, so that the lower moving foot 24 is limited in the lower horizontal sliding groove 4 and can slide along the lower horizontal sliding groove 4, and the lower moving foot 24 is limited in the lower horizontal sliding groove 4 and can slide along the lower horizontal sliding groove 4.

When the lower moving foot 24 moves left and right relative to the lower fixing foot 23, the up-and-down movement of the lifting platform 3 can be realized.

As shown in fig. 2, a storage battery 108 is fixed on the base 1, a charging interface 109 is arranged on the storage battery 108, the storage battery 108 is electrically connected with the motor 6, the motor 6 can rotate forward and backward, a motor steering switch for controlling the motor 6 to rotate forward and backward is arranged on the lifting platform 3, the motor steering switch is electrically connected with the motor 6, the motor steering switch is pressed once, the motor 6 rotates forward after being electrified and then is pressed once, and the motor 6 rotates backward after being electrified; the output end of the motor 6 is fixedly connected with a transmission shaft 7 with threads, the transmission shaft 7 is connected with a transmission block 8 through threads, and the transmission block 8 is fixedly connected with a lower moving foot 24; the motor 6 rotates forwards to drive the transmission shaft 7 to rotate forwards, the threads on the transmission shaft 7 drive the transmission block 8 to drive the lower moving foot 24 to move downwards to fix the foot 23 close to the lower moving foot, and therefore the scissor-type support frame 2 extends to drive the lifting platform 3 to ascend; the motor 6 rotates reversely to drive the transmission shaft 7 to rotate reversely, the thread on the transmission shaft 7 drives the transmission block 8 to drive the moving foot 24 to be away from the lower fixing foot 23, and therefore the scissor-type support frame 2 contracts to drive the lifting platform 3 to descend.

As shown in fig. 1, guard rails 31 are welded around the lifting platform 3, openings are formed in the guard rails 31, guard doors 32 are hinged to the openings of the guard rails 31, the right sides of the guard doors 32 are detachably connected with the guard rails 31 through door bolts, and the door bolts are of the conventional structure. The bottom of the protective door 32 is pin-connected with the front side surface of the lifting platform 3. As shown in fig. 3, when the protective door 32 is closed, the protective door 32 can function as a guard to prevent the operator from falling. As shown in fig. 4, when the constructor needs to enter or leave the lifting platform 3, the constructor opens the protective door 32 and turns downwards to make the top of the protective door 32 contact with the ground, and the protective door 32 can be used as a ladder 33, which is convenient for the operator to get on or leave the lifting platform 3.

As shown in fig. 3 or 4, the lifting platform 3 is provided with a control switch 35. The storage battery 108, the control switch 35 and the motor 6 are electrically connected, and the control switch 35 is a power switch of the motor 6. After the operator gets on the lifting platform 3, the control switch 35 is started again to electrify the motor 6 and realize the lifting of the lifting platform 3.

As shown in fig. 3 and 4, an interlock device 34 is fixed to a fence at the left side of the guard door 32, and the interlock device 34 is constructed like a push button switch in the related art, and a push button of the interlock device 34 is protruded to the right. The interlock device 34 is connected in series with the control switch 35 and the motor 6. When the control switch 35 is turned on and the interlock device 34 is pressed, the motor 6 is energized; when the control switch 35 is closed or the interlock device 34 is not pressed, the motor 6 is de-energized.

The distance between the left end of the guard door 32 and the left guard rail 31 when the guard door 32 is closed is smaller than the distance between the right end of the button of the interlock 34 and the left guard rail 31 when the interlock 34 is not pressed by 0.5cm, thereby achieving that the guard door 32 can press the button of the interlock 34 when the guard door 32 is closed. After the control switch 35 is pressed down and the protective door 32 is closed and the interlocking device 34 is squeezed, the motor 6 can be electrified to work, and the lifting platform 3 can be lifted; if the protective door 32 is suddenly opened due to an accident or misoperation in the working process, the interlocking device 34 is not extruded any more, the interlocking device 34 can cut off the power supply to stop the motor 6 from rotating, and the lifting platform 3 stops lifting, so that the accident is prevented.

The specific implementation process is as follows:

when the scaffold is used, a constructor firstly self-locks the universal self-locking wheel 110 below the scaffold, then screws out the stabilizing support 102 and uses the pin for limiting, opens the supporting foot 105 to enable the foot pad 111 to be in contact with the ground, and then locks the supporting foot 105 and the stabilizing support 102 by the pin, at the moment, the supporting foot 105 and the stabilizing support 102 enlarge the fixed area of the scaffold base 1, and the stability of the scaffold is enhanced. Then, the constructor opens the protective door 32 and turns over the protective door 32 and puts down it to become a ladder 33, after the constructor climbs up the lifting platform 3 along the ladder 33, close the protective door 32, press the motor steering switch to make the motor 6 can rotate forward after being electrified, open the control switch 35 to make the motor 6 electrified, because the button of the interlocking device 34 is pressed, the current is switched on to the motor 6, the motor 6 rotates forward, the motor 6 drives the transmission shaft 7 to rotate and drives the transmission block 8 to move along the horizontal direction, the lower moving foot 24 of the scissor-type support frame 2 moves towards the direction close to the lower fixed foot 23, and then the scissor-type support frame 2 extends upwards, thereby driving the lifting platform 3 to move upwards, and achieving the stable adjustment of the height of the scaffold. After the construction is finished, the motor steering switch is pressed to enable the motor 6 to rotate reversely, the motor 6 drives the transmission shaft 7 to rotate to drive the transmission block 8 to move along the horizontal direction, the lower moving foot 24 of the scissor-type support frame 2 moves towards the direction far away from the lower fixing foot 23, and then the scissor-type support frame 2 contracts downwards, so that the lifting platform 3 is driven to move downwards.

If the protective door 32 is suddenly opened during the lifting of the lifting platform 3 in midway due to accidents or misoperation, the interlocking device 34 is not pressed any more, the motor 6 is powered off, and the lifting platform 3 stops lifting immediately, so that accidents are prevented.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a but height-adjusting's stable form engineering construction scaffold which characterized in that: comprises a base, a scissor-type supporting frame and a lifting platform; one end of the base is provided with a lower horizontal sliding groove, and the bottom surface of the lifting platform is provided with an upper horizontal sliding groove matched with the lower horizontal sliding groove; the upper end of the scissor type supporting frame is provided with an upper fixing foot and an upper moving foot, and the lower end of the scissor type supporting frame is provided with a lower fixing foot and a lower moving foot; the upper fixed foot is hinged to one end, far away from the upper horizontal sliding groove, of the bottom surface of the lifting platform, the upper moving foot is limited in the upper horizontal sliding groove and can slide along the upper horizontal sliding groove, the lower fixed foot is hinged to the upper surface of the base, the lower moving foot is limited in the lower horizontal sliding groove and can slide along the lower horizontal sliding groove, a motor driven by a power supply is fixed on the base, the motor can rotate forwards and backwards, a motor steering switch for controlling the motor to rotate forwards and backwards is arranged on the lifting platform, the motor steering switch is electrically connected with the motor, the motor steering switch is pressed, the motor is rotated forwards after being electrified and then pressed, and the motor is rotated backwards after being electrified; the output end of the motor is fixedly connected with a transmission shaft with threads, the transmission shaft is connected with a transmission block through threads, and the transmission block is fixedly connected with the lower moving foot; two opposite sides of the base are provided with grooves, two stabilizing supports are arranged at two ends in each groove, one ends, far away from each other, of the two stabilizing supports in the same groove are connected with a groove pin shaft, and the stabilizing supports can be opened in a horizontal rotating mode around the pin shaft connection position.

2. A stabilized type of construction scaffold with adjustable height according to claim 1, wherein: guard railings are arranged on the periphery of the lifting platform, guard doors are arranged on the guard railings, and the bottoms of the guard doors are connected with side pin shafts of the lifting platform.

3. A stable type engineering construction scaffold with adjustable height according to claim 2, wherein: the top of the groove is provided with a support positioning hole for communicating the upper end of the underframe with the inside of the groove, and the stabilizing support is annularly provided with a plurality of support pin holes matched with the support positioning hole along the rotating center.

4. A stable type engineering construction scaffold of adjustable height according to claim 3, characterized in that: after the stabilizing support is unfolded, one end, away from the base, of the stabilizing support is provided with a supporting leg and a containing groove for containing the supporting leg, the supporting leg can be rotatably contained in the containing groove of the stabilizing support, a supporting leg positioning hole is formed in the side wall of the stabilizing support, a plurality of supporting leg pin holes matched with the supporting leg positioning hole are annularly arranged on the supporting leg along the rotation center, and a foot pad is arranged at the grounding end of the supporting leg.

5. A stable type engineering construction scaffold capable of adjusting height according to claim 4, wherein: the bottom of base is equipped with universal auto-lock wheel.

6. A stable type engineering construction scaffold capable of adjusting height according to claim 5, wherein: the power is a storage battery fixed on the base, and a charging interface is arranged on the storage battery.

7. A stable type engineering construction scaffold capable of adjusting height according to claim 6, wherein: the lifting platform is provided with a control switch, the storage battery, the control switch and the motor are electrically connected, and the control switch is a power switch of the motor.

8. A stabilized type of construction scaffold with adjustable height according to claim 7, wherein: the guardrail on one side of the protective door is provided with an interlocking device, the interlocking device is connected with the control switch and the motor in series, and when the control switch is turned on and the interlocking device is pressed, the motor is electrified; when the control switch is closed or the interlocking device is not pressed, the motor is powered off; when the guard door is closed, the guard door can be pressed to the interlock.