CN222936382U

CN222936382U - Lifting scaffold

Info

Publication number: CN222936382U
Application number: CN202421680961.7U
Authority: CN
Inventors: 黄晶晶; 王小鹏; 孔德源; 陈展龙; 陈志尚; 康海祥; 梅超; 杨林鸿; 陈剑飞; 马俊杰
Original assignee: China Construction Xinjiang Construction Engineering Group First Construction Engineering Co Ltd
Current assignee: China Construction Xinjiang Construction Engineering Group First Construction Engineering Co Ltd
Priority date: 2024-07-16
Filing date: 2024-07-16
Publication date: 2025-06-03
Anticipated expiration: 2034-07-16

Abstract

The utility model belongs to the technical field of auxiliary devices for building construction, and specifically discloses a lifting scaffold, including a bracket, a frame slidably connected in the bracket, an operating platform slidably connected in the frame, a transmission unit 1 for longitudinally moving the frame is provided on the bracket, a transmission unit 2 for longitudinally moving the operating platform is provided on the frame, a groove is provided on the operating platform, an extension panel is slidably connected in the groove, and a limit assembly for limiting the movement of the extension panel is provided in the groove. Existing lifting scaffolds have the safety hazard of falling objects from high altitudes. The utility model provides a pull-out and retractable extension panel on the original liftable operating platform, so that the operator can stand on the original operating platform and put all the tools on the extension panel, and the safety hazard caused by the operator accidentally touching the tool and causing the tool to fall from the operating platform can be greatly reduced.

Description

Lifting scaffold

Technical Field

The utility model relates to the technical field of auxiliary devices for building construction, in particular to a lifting scaffold.

Background

Scaffold is one of the indispensable auxiliary devices in building construction, in traditional interior decoration or outdoor decoration, when building wall height or house top need be installed, the fitment personnel is usually required to climb to the high place by means of scaffold to carry out fitment operation. The scaffold has the characteristics of strong bearing capacity, flexible erection, high safety and the like, and is widely applied to actual production and life. Scaffolding can function to a greater extent in situations where long or frequent work is required. The scaffold can be built to a certain height according to the requirement, and a working platform with a certain space can be provided, so that the scaffold is convenient for constructors to carry out decoration operation.

With the progress and development of society, people are continuously improving the scaffold, and the scaffold is intended to be developed towards more convenience and humanization. The scaffold in the prior art comprises a scaffold with a lifting platform, wherein the height of the operating platform can be adjusted according to actual needs, such as a patent with the application number 202320786224.4 and the publication number CN220377758U, and the small lifting scaffold has the working principle that the scaffold comprises a supporting structure, an operating platform and a power device. The supporting structure comprises a lower supporting frame and an upper supporting frame, and the upper supporting frame is in sliding connection with the lower supporting frame. The operation platform is in sliding connection with the upper supporting frame. The power device is mounted on the support structure. The power device comprises a driving machine, a fixed pulley and a lifting rope. The driving machine is positioned at the bottom of the lower supporting frame. The driving machine is a winding machine. The fixed pulleys comprise two groups of five fixed pulleys, and the five fixed pulleys are respectively welded and installed on the lower part of the lower support frame, the upper part of the upper support frame, the lower part of the upper support frame and the lower part of the operating platform. The lifting ropes comprise two groups of fixed pulleys, the two lifting ropes respectively bypass the two groups of fixed pulleys in a one-to-one correspondence manner, one end of each lifting rope is connected to the driving end of the driving machine, and the other end of each lifting rope is connected to the lower end of the operating platform. When the winch starts to rotate, the exposed steel wire rope becomes shorter gradually when the winch rolls up the steel wire rope, the upper supporting frame rises along with the steel wire rope, and the operating platform is continuously improved when the height is limited; when the hoist is used for placing the steel wire rope outside, the height of the upper support frame is continuously reduced, so that the lifted operation platform is lowered.

However, the lifting scaffold disclosed in the patent has certain drawbacks and disadvantages in the practical application process, and when working procedures such as wall surface and top surface painting, gypsum board installation or suspended ceiling installation are carried out due to decoration, if decoration personnel and tools are all located on the same operation platform, decoration tools such as paint barrels, wrenches, electric screwdrivers and the like are easily touched by the decoration personnel in the process of moving on the operation platform, and if the tools fall from the operation platform, people or floors on the ground can be hit by the tools, so that certain potential safety hazards exist.

Disclosure of utility model

The utility model aims to provide a lifting scaffold which solves the problem that the lifting scaffold in the patent has potential safety hazards of falling objects at high altitude.

The lifting scaffold comprises a support, a frame is connected in the support in a sliding mode, an operation platform is connected in the frame in a sliding mode, a transmission unit I used for enabling the frame to longitudinally move is arranged on the support, a transmission unit II used for enabling the operation platform to longitudinally move is arranged on the frame, a groove is formed in the operation platform, an expansion panel is connected in the groove in a sliding mode, and a limiting assembly used for limiting movement of the expansion panel is arranged in the groove.

The utility model has the principle and beneficial effects that by arranging the extension panel capable of being pulled out and retracted on the original liftable operation platform, operators can stand on the original operation platform to put tools on the extension panel, the operation space of the operators can be increased, the operators do not need to touch the tools in the moving process of the operation platform, and the potential safety hazard caused by the fact that the tools drop from the operation platform due to the fact that the operators touch the tools by mistake can be reduced to a great extent.

The second scheme is based on the optimization, the first transmission unit comprises a winch, a first fixed pulley, a second fixed pulley, a third fixed pulley, a first nut and a first steel wire rope, wherein the winch, the first fixed pulley, the second fixed pulley and the first nut are fixedly connected with the bracket, the third fixed pulley is fixedly connected with the frame, one end of the first steel wire rope is fixedly connected with the winch, and the other end of the first steel wire rope sequentially bypasses the first fixed pulley, the second fixed pulley and the third fixed pulley and is fixedly connected with the first nut. The first steel wire rope is started by the winch, sequentially bypasses the first fixed pulley, the second fixed pulley and the third fixed pulley, is finally fixedly connected with the first nut to form a set of transmission system, and the first steel wire rope is recycled inwards or released outwards through the winch to realize the movement of the frame in the vertical direction relative to the support, so that the height of the frame can be conveniently adjusted.

The third scheme is based on the scheme, the second transmission unit comprises a first transmission component and a second transmission component which are arranged on two sides of the frame, the first transmission component comprises two nuts, two fixed pulleys, two overload plates and a second steel wire rope, the two nuts are fixedly connected with the bracket, the two fixed pulleys are fixedly connected with the frame, the frame and the operating platform are in sliding connection through the overload plates, two ends of the second steel wire rope penetrate through the two nuts respectively and bypass the two fixed pulleys to be fixedly connected with the overload plates, and the first transmission component and the second transmission component have the same structure. The two ends of the second steel wire rope respectively pass through the second nut and then bypass the fourth fixed pulley and are finally fixedly connected with the overload plate, and the connecting route of the second steel wire rope enables the frame to move along with the operation platform when moving in the vertical direction relative to the bracket, so that the height of the operation platform can be conveniently adjusted.

The four scheme is the preference of this basic scheme, and spacing subassembly includes slide rail strip and director, and two slide rail strips respectively with recess both sides inner wall rigid coupling, director and slide rail strip sliding connection, director and extension panel rigid coupling, the both ends of two slide rail strips all are equipped with the stopper. The extension panel can be easily pulled out or retracted by an operator through the arrangement of the slide rail and the guide, and the movement distance of the extension panel is limited in a specific range through the arrangement of the limiter.

Fifth, the preferable mode is that the bottom of the bracket is provided with casters. The arrangement of the casters allows the scaffold to be moved to a target site as required.

In a sixth aspect, the fifth aspect is preferable, and the caster is provided with a brake. The arrangement of the brake is convenient for manually braking the truckles when the scaffold is placed in situ, so that the scaffold can be stably stopped in situ.

And seventhly, the operation platform is provided with handrails as the optimization of the basic scheme. The arrangement of the handrails is convenient for operators to provide supporting points for the handrails when the operators need to contact the position above the limit height of the scaffold, and meanwhile, the arrangement of the handrails can ensure the safety of the operators to a certain extent.

According to the eighth scheme, the lifting support leg is connected to the bottom of the support in a threaded mode, and a support leg disc is arranged at the bottom of the lifting support leg. The lifting support leg can adjust the height of the lifting support leg when the scaffold is placed in situ, so that the support leg disc is in contact with the ground, the contact area between the scaffold and the ground is effectively increased, the scaffold is more stable when placed in situ, and the safety of operators on an operation platform is higher.

Drawings

Fig. 1 is a perspective view of a lifting scaffold;

fig. 2 is a left side view of a lifting scaffold;

Fig. 3 is a front view of a lifting scaffold;

FIG. 4 is a schematic view of the structure of a slide rail and guide and stop of a lifting scaffold;

Fig. 5 is a schematic structural view of an operating platform and an overload plate of the lifting scaffold;

fig. 6 is a schematic view of a lifting leg and leg plate structure of a lifting scaffold.

Detailed Description

The utility model is described in further detail below by way of specific embodiments:

The reference numerals in the drawings of the specification comprise a bracket 1, a frame 2, an operation platform 3, a groove 4, an expansion panel 5, a winch 6, a fixed pulley I7, a fixed pulley II 8, a fixed pulley III 9, a nut I10, a wire rope I11, a nut II 12, a fixed pulley IV 13, an overload plate 14, a wire rope II 15, a slide rail 16, a guide 17, a limiter 18, a trundle 19, a brake 20, an armrest 21, a lifting support 22 and a support disc 23.

Examples

As shown in fig. 1 to 6, the lifting scaffold comprises a support 1, a frame 2 is connected in a sliding manner in the support 1, an operation platform 3 is connected in a sliding manner in the frame 2, a transmission unit I for enabling the frame 2 to longitudinally move is arranged on the support 1, the transmission unit I comprises a winch 6, a fixed pulley I7, a fixed pulley II 8, a fixed pulley III 9, a nut I10 and a steel wire rope I11, the winch 6, the fixed pulley I7, the fixed pulley II 8 and the nut I10 are fixedly connected with the support 1, the fixed pulley III 9 is fixedly connected with the frame 2, one end of the steel wire rope I11 is fixedly connected with the winch 6, and the other end of the steel wire rope I11 sequentially bypasses the fixed pulley I7, the fixed pulley II 8 and the fixed pulley III 9 and is fixedly connected with the nut I10.

The frame 2 is provided with a transmission unit II for enabling the operation platform 3 to longitudinally move, the transmission unit II comprises a transmission component I and a transmission component II which are arranged on two sides of the frame 2, the transmission component I comprises two nuts II 12, two fixed pulleys IV 13, two overload plates 14 and a steel wire rope II 15, the two nuts II are fixedly connected with the support 1, the two fixed pulleys IV 13 are fixedly connected with the frame 2, the frame 2 and the operation platform 3 are in sliding connection through the overload plates 14, two ends of the steel wire rope II 15 respectively penetrate through the two nuts II 12 and bypass the two fixed pulleys IV 13 to be fixedly connected with the overload plates 14, and the transmission component I and the transmission component II are identical in structure.

The operation platform 3 is provided with a groove 4, the expansion panel 5 is connected in the groove 4 in a sliding manner, a limiting component used for limiting the movement of the expansion panel is arranged in the groove 4, the limiting component comprises slide rails 16 and a guider 17, the two slide rails 16 are fixedly connected with the inner walls of the two sides of the groove 4 respectively, the guider 17 is connected with the slide rails 16 in a sliding manner, the guider 17 is fixedly connected with the expansion panel 5, two ends of the two slide rails 16 are respectively provided with a limiter 18, the bottom of the support 1 is provided with a truckle 19, the truckle 19 is provided with a brake 20, the operation platform 3 is provided with a handrail 21, the bottom of the support 1 is connected with lifting support legs 22 in a threaded manner, and the bottom of the lifting support legs 22 is provided with support leg discs 23.

The implementation manner of this example is as follows:

When it is necessary to pull out the expansion panel 5, the expansion panel 5 is pulled in a direction away from the operation platform 3, the guide 17 moves with it, and the guide 17 moves along the slide rail 16 until the guide 17 comes into contact with the stopper 18.

When the operation platform 3 needs to be lifted, the winch 6 is started at first, the winch 6 recovers the first steel wire rope 11 inwards, the first steel wire rope 11 drives the first fixed pulley 7, the second fixed pulley 8 and the third fixed pulley 9 to rotate, the frame 2 moves in a direction away from the bracket 1 under the action of power transmission, and in the upward movement process of the frame 2, the second steel wire rope 15 drives the operation platform 3 to move upwards along with the rotation of the fourth fixed pulley 13.

When the operation platform 3 needs to be lowered, the winch 6 is started at first, the winch 6 outwards releases the first steel wire rope 11, the first steel wire rope 11 drives the first fixed pulley 7, the second fixed pulley 8 and the third fixed pulley 9 to rotate, the frame 2 moves towards the direction close to the bracket 1 under the action of power transmission, and in the downward movement process of the frame 2, the second steel wire rope 15 and the operation platform 3 move downwards along with the rotation of the fourth fixed pulley 13.

When placing the scaffold in place, the brake 20 is first pulled down until the brake 20 abuts the castor wheel 19, and then the height of the lifting leg 22 is adjusted until the leg disc 23 contacts the ground.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The utility model provides a lifting scaffold, its characterized in that, including support (1), sliding connection has frame (2) in support (1), sliding connection has operation platform (3) in frame (2), be equipped with on support (1) and be used for making frame (2) longitudinal movement's drive unit one, be equipped with on frame (2) and be used for making operation platform (3) longitudinal movement's drive unit two, be equipped with recess (4) on operation platform (3), sliding connection has extension panel (5) in recess (4), be equipped with the spacing subassembly that is used for restricting extension panel and removes in recess (4).

2. The lifting scaffold according to claim 1, wherein the first transmission unit comprises a winch (6), a first fixed pulley (7), a second fixed pulley (8), a third fixed pulley (9), a first nut (10) and a first steel wire rope (11), wherein the winch (6), the first fixed pulley (7), the second fixed pulley (8) and the first nut (10) are fixedly connected with the bracket (1), the third fixed pulley (9) is fixedly connected with the frame (2), one end of the first steel wire rope (11) is fixedly connected with the winch (6), and the other end of the first steel wire rope (11) sequentially bypasses the first fixed pulley (7), the second fixed pulley (8) and the third fixed pulley (9) and is fixedly connected with the first nut (10).

3. The lifting scaffold according to claim 1, wherein the second transmission unit comprises a first transmission assembly and a second transmission assembly which are arranged on two sides of the frame (2), the first transmission assembly comprises two nuts two (12), two fixed pulleys four (13), two overload plates (14) and a second steel wire rope (15), the two nuts two (12) are fixedly connected with the bracket (1), the two fixed pulleys four (13) are fixedly connected with the frame (2), the frame (2) and the operation platform (3) are in sliding connection through the overload plates (14), two ends of the second steel wire rope (15) respectively penetrate through the two nuts two (12) and bypass the two fixed pulleys four (13) to be fixedly connected with the overload plates (14), and the first transmission assembly and the second transmission assembly have the same structure.

4. Lifting scaffold according to claim 1, characterized in that the limiting assembly comprises slide rails (16) and a guide (17), two slide rails (16) are fixedly connected with the inner walls of two sides of the groove (4) respectively, the guide (17) is slidably connected with the slide rails (16), the guide (17) is fixedly connected with the expansion panel (5), and two ends of the two slide rails (16) are provided with limiters (18).

5. Lifting scaffold according to claim 1, characterized in that the bottom of the frame (1) is provided with casters (19).

6. Lifting scaffold according to claim 5, characterized in that the casters (19) are provided with a brake (20).

7. Lifting scaffold according to claim 1, characterized in that the handling platform (3) is provided with handrails (21).

8. Lifting scaffold according to claim 1, characterized in that the bottom of the bracket (1) is screwed with lifting legs (22), and the bottom of the lifting legs (22) is provided with leg discs (23).