Lifting type scaffold

Abstract

The utility model belongs to the technical field of auxiliary devices for building construction, and particularly discloses a lifting type scaffold which comprises a support, a frame is slidably connected in the support, an operation platform is slidably connected in the frame, and a first transmission unit used for enabling the frame to move longitudinally is arranged on the support. A second transmission unit used for enabling the operation platform to move longitudinally is arranged on the frame, a groove is formed in the operation platform, an expansion panel is connected into the groove in a sliding mode, and a limiting assembly used for limiting movement of the expansion panel is arranged in the groove. The existing lifting scaffold has the potential safety hazard of falling objects from high altitude. According to the utility model, the extension panel which can be pulled out and retracted is arranged on the original liftable operating platform, so that an operator can stand on the original operating platform and place all tools on the extension panel, and the potential safety hazard caused by the falling of the tools from the operating platform due to the fact that the operator touches the tools by mistake can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for building construction, and particularly relates to a lifting scaffold. Background Technique

[0002] The scaffold is one of the indispensable auxiliary devices in building construction. In traditional interior or exterior decoration, when it is necessary to decorate the high part of the building wall or the roof of the house, usually the decoration workers need to climb to the high place with the help of the scaffold to carry out the decoration work. Due to its own characteristics of strong bearing capacity, flexible erection and high safety, the scaffold is widely used in actual production and life. For the situation that requires working at height for a long time or frequently, the scaffold can play a greater role. The scaffold can be built to a certain height according to needs and can provide a working platform with a certain space, which is convenient for construction workers to carry out decoration work.

[0003] With the progress and development of society, people are constantly improving the scaffold, aiming to make the scaffold develop towards a more convenient and user-friendly direction. The scaffold in the prior art includes a scaffold with a liftable platform that can adjust the height of the operation platform according to actual needs. For example, in the patent with the application number 202320786224.4 and the publication number CN220377758U, a small lifting scaffold is described. Its working principle is as follows: it includes a support structure, an operation platform and a power device. The support structure includes a lower support frame and an upper support frame, and the upper support frame is slidably connected to the lower support frame. The operation platform is slidably connected to the upper support frame. The power device is installed on the support structure. The power device includes a drive machine, a fixed pulley and a suspension rope. The drive machine is located at the bottom of the lower support frame. The drive machine is a winch. The fixed pulley includes two groups, with five in each group. The five fixed pulleys are respectively welded and installed at the lower part of the lower support frame, the upper 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 operation platform. The suspension rope includes two, and the two suspension ropes respectively bypass the two groups of fixed pulleys one by one, and one end of each suspension rope is connected to the driving end of the drive machine, and the other end is connected to the lower end of the operation platform. During implementation, the winch starts to rotate. When the winch winds up the steel wire rope, the exposed steel wire rope gradually becomes shorter, and the upper support frame rises accordingly. When the limit height is reached, the operation platform continuously rises; when the winch releases the steel wire rope, the height of the upper support frame continuously decreases, so as to lower the raised operation platform.

[0004] However, the lift scaffold described in this patent has certain drawbacks and deficiencies in the actual application process. When carrying out operations such as painting the wall and ceiling, installing gypsum boards or suspended ceilings during decoration, if the decoration workers and tools are on the same operation platform, it is very easy for the decoration workers to touch the decoration tools during the movement on the operation platform, such as paint buckets, wrenches, electric screwdrivers, etc. If these tools fall from the operation platform, they may hit people or the floor on the ground, posing a certain safety hazard. Summary of the Invention

[0005] The purpose of the present invention is to provide a lift scaffold to solve the problem of the safety hazard of high-altitude falling objects existing in the lift scaffold in the above-mentioned patent.

[0006] To achieve the above object, the basic solution provided by the present invention is: a lift scaffold, including a bracket, a frame is slidably connected inside the bracket, an operation platform is slidably connected inside the frame, a first transmission unit for making the frame move longitudinally is provided on the bracket, a second transmission unit for making the operation platform move longitudinally is provided on the frame, a groove is provided on the operation platform, an extended panel is slidably connected inside the groove, and a limiting component for restricting the movement of the extended panel is provided inside the groove.

[0007] The principle and beneficial effects of the present invention are as follows: By setting a retractable extended panel on the original liftable operation platform, the operator can stand on the original operation platform and place all the tools on the extended panel, which can increase the operation space of the operator, and the operator does not have to worry about touching the tools during the movement on the operation platform, and the safety hazard caused by the tools falling from the operation platform due to the operator accidentally touching the tools can be greatly reduced.

[0008] Solution 2, which is the preference of the basic solution. The first transmission unit includes a winch, a first fixed pulley, a second fixed pulley, a third fixed pulley, a first nut and a first steel wire rope. The winch, the first fixed pulley, the second fixed pulley and the first nut are all fixedly connected to the bracket, the third fixed pulley is fixedly connected to the frame, one end of the first steel wire rope is fixedly connected to 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 to the first nut. The first steel wire rope starts from the winch, sequentially bypasses the first fixed pulley, the second fixed pulley and the third fixed pulley, and finally is fixedly connected to the first nut, forming a set of transmission systems. By the winch retracting or releasing the first steel wire rope inward or outward, the frame can move vertically relative to the bracket, facilitating the adjustment of the height of the frame.

[0009] Solution 3, which is the optimization of the basic solution. The second transmission unit includes the first transmission assembly and the second transmission assembly provided on both sides of the frame. The first transmission assembly includes two second nuts, two fourth fixed pulleys, two overload plates, and the second steel wire rope. Both of the two second nuts are fixedly connected to the bracket. Both of the two fourth fixed pulleys are fixedly connected to the frame. The frame and the operating platform are slidably connected through the overload plates. The two ends of the second steel wire rope respectively pass through the two second nuts and bypass the two fourth fixed pulleys and are fixedly connected to the overload plates. The first transmission assembly and the second transmission assembly have the same structure. The two ends of the second steel wire rope respectively pass through the second nuts, then bypass the fourth fixed pulleys, and finally are fixedly connected to the overload plates. The above connection route of the second steel wire rope enables the frame to move in the vertical direction relative to the bracket while the operating platform also moves accordingly, facilitating the adjustment of the height of the operating platform.

[0010] Solution 4, which is the optimization of the basic solution. The limiting assembly includes a slide rail bar and a guide. The two slide rail bars are respectively fixedly connected to the inner walls on both sides of the groove. The guide is slidably connected to the slide rail bar. The guide is fixedly connected to the extension panel. Limiters are provided at both ends of the two slide rail bars. Through the setting of the slide rail bar and the guide, the extension panel can be easily pulled out or retracted by the operator, and through the setting of the limiters, the moving distance of the extension panel is restricted within a specific range.

[0011] Solution 5, which is the optimization of the basic solution. Casters are provided at the bottom of the bracket. The setting of the casters enables the scaffolding to be moved to the target location as needed.

[0012] Solution 6, which is the optimization of Solution 5. Brakes are provided on the casters. The setting of the brakes facilitates manually braking the casters when the scaffolding is placed in place, enabling the scaffolding to stop more stably in place.

[0013] Solution 7, which is the optimization of the basic solution. Handrails are provided on the operating platform. The setting of the handrails facilitates the operator to provide a hand-holding support point when contacting positions above the limit height of the scaffolding. At the same time, the setting of the handrails can ensure the safety of the operator to a certain extent.

[0014] Solution 8, which is the optimization of the basic solution. Lifting legs are threadedly connected to the bottom of the bracket. A leg plate is provided at the bottom of the lifting legs. The lifting legs can adjust their own height when the scaffolding is placed in place, enabling the leg plate to contact the ground, effectively increasing the contact area between the scaffolding and the ground, making the scaffolding more stable when placed in place, and improving the safety of the operator on the operating platform. Description of the Drawings

[0015] Figure 1 is a three-dimensional view of a lifting scaffolding;

[0016] Figure 2 is a left view of a lifting scaffolding;

[0017] Figure 3 It is a front view of a lifting scaffold;

[0018] Figure 4 It is a structural schematic diagram of a slide rail bar, a guide and a stopper of a lifting scaffold;

[0019] Figure 5 It is a structural schematic diagram of an operation platform and an overload plate of a lifting scaffold;

[0020] Figure 6 It is a structural schematic diagram of a lifting leg and a leg plate of a lifting scaffold. Specific implementation mode

[0021] The present utility model will be further described in detail below through specific implementation modes:

[0022] The reference numerals in the accompanying drawings of the specification include: bracket 1, frame 2, operation platform 3, groove 4, extension panel 5, winch 6, first fixed pulley 7, second fixed pulley 8, third fixed pulley 9, first nut 10, first steel wire rope 11, second nut 12, fourth fixed pulley 13, overload plate 14, second steel wire rope 15, slide rail bar 16, guide 17, stopper 18, caster 19, brake 20, handrail 21, lifting leg 22, leg plate 23.

[0023] Embodiment

[0024] As Figures 1 to 6 shown: A lifting scaffold includes a bracket 1, a frame 2 is slidably connected inside the bracket 1, an operation platform 3 is slidably connected inside the frame 2, a first transmission unit for longitudinally moving the frame 2 is provided on the bracket 1, the first transmission unit includes 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, the winch 6, the first fixed pulley 7, the second fixed pulley 8 and the first nut 10 are all fixedly connected to the bracket 1, the third fixed pulley 9 is fixedly connected to the frame 2, one end of the first steel wire rope 11 is fixedly connected to the winch 6, and the other end of the first steel wire rope 11 sequentially passes around the first fixed pulley 7, the second fixed pulley 8 and the third fixed pulley 9 and is fixedly connected to the first nut 10.

[0025] A second transmission unit for longitudinally moving the operation platform 3 is provided on the frame 2, the second transmission unit includes a first transmission component and a second transmission component provided on both sides of the frame 2, the first transmission component includes two second nuts 12, two fourth fixed pulleys 13, two overload plates 14 and a second steel wire rope 15, the two second nuts 12 are all fixedly connected to the bracket 1, the two fourth fixed pulleys 13 are all fixedly connected to the frame 2, the frame 2 and the operation platform 3 are slidably connected through the overload plates 14, both ends of the second steel wire rope 15 respectively pass through the two second nuts 12 and bypass the two fourth fixed pulleys 13 and are fixedly connected to the overload plates 14, and the first transmission component and the second transmission component have the same structure.

[0026] There is a groove 4 on the operating platform 3. An extension panel 5 is slidably connected in the groove 4. A limiting component for restricting the movement of the extension panel is provided in the groove 4. The limiting component includes a slide rail bar 16 and a guide 17. The two slide rail bars 16 are respectively fixedly connected to the inner walls on both sides of the groove 4. The guide 17 is slidably connected to the slide rail bar 16. The guide 17 is fixedly connected to the extension panel 5. Limiters 18 are provided at both ends of the two slide rail bars 16. There are casters 19 at the bottom of the bracket 1. A brake 20 is provided on the caster 19. There is a handrail 21 on the operating platform 3. The bottom of the bracket 1 is threadedly connected with a lifting leg 22. A leg plate 23 is provided at the bottom of the lifting leg 22.

[0027] The implementation manner of this embodiment is as follows:

[0028] When it is necessary to pull out the extension panel 5, pull the extension panel 5 in the direction away from the operating platform 3. The guide 17 moves accordingly. The guide 17 moves along the slide rail bar 16 until the guide 17 contacts the limiter 18.

[0029] When it is necessary to raise the operating platform 3, first start the winch 6. The winch 6 retracts the first steel wire rope 11 inward. 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. Under the action of power transmission, the frame 2 moves in the direction away from the bracket 1. During the upward movement of the frame 2, the second steel wire rope 15 drives the operating platform 3 to move upward as the fourth fixed pulley 13 rotates.

[0030] When it is necessary to lower the operating platform 3, first start the winch 6. The winch 6 releases the first steel wire rope 11 outward. 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. Under the action of power transmission, the frame 2 moves in the direction close to the bracket 1. During the downward movement of the frame 2, the second steel wire rope 15 and the operating platform 3 move downward as the fourth fixed pulley 13 rotates.

[0031] When placing the scaffolding in place, first pull down the brake 20 until the brake 20 is in close contact with the caster 19, and then adjust the height of the lifting leg 22 until the leg plate 23 contacts the ground.

[0032] The above are only the embodiments of the present invention. Common knowledge such as specific structures and characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention. These will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims. The specific implementation manners in the description can be used to explain the content of the claims.

Claims

1. A lifting scaffold, characterized in that: The invention comprises a bracket (1), a frame (2) being slidably connected inside the bracket (1), an operating platform (3) being slidably connected inside the frame (2), a transmission unit 1 for enabling the frame (2) to move longitudinally is provided on the bracket (1), a transmission unit 2 for enabling the operating platform (3) to move longitudinally is provided on the frame (2), a groove (4) is provided on the operating platform (3), an extension panel (5) is slidably connected inside the groove (4), and a limit assembly for limiting the movement of the extension panel is provided inside the groove (4).

2. A lifting scaffold according to claim 1, characterized in that: The transmission unit 1 comprises a winch (6), a fixed pulley 1 (7), a fixed pulley 2 (8), a fixed pulley 3 (9), a nut 1 (10) and a steel wire rope 1 (11); the winch (6), the fixed pulley 1 (7), the fixed pulley 2 (8) and the nut 1 (10) are all fixedly connected to the bracket (1); the fixed pulley 3 (9) is fixedly connected to the frame (2); one end of the steel wire rope 1 (11) is fixedly connected to the winch (6); the other end of the steel wire rope 1 (11) passes through the fixed pulley 1 (7), the fixed pulley 2 (8) and the fixed pulley 3 (9) in sequence and is fixedly connected to the nut 1 (10).

3. The lifting scaffold according to claim 1, characterized in that: The transmission unit 2 comprises a transmission assembly 1 and a transmission assembly 2 arranged on both sides of the frame (2); the transmission assembly 1 comprises two nuts 2 (12), two fixed pulleys 4 (13), two overload plates (14) and a steel wire rope 2 (15); the two nuts 2 (12) are fixedly connected to the bracket (1); the two fixed pulleys 4 (13) are fixedly connected to the frame (2); the frame (2) and the operating platform (3) are slidably connected via the overload plates (14); the two ends of the steel wire rope 2 (15) respectively pass through the two nuts 2 (12) and bypass the two fixed pulleys 4 (13) to be fixedly connected to the overload plates (14); the transmission assembly 1 and the transmission assembly 2 have the same structure.

4. The lifting scaffold according to claim 1, characterized in that: The limit assembly comprises a slide rail (16) and a guide (17); the two slide rails (16) are respectively fixedly connected to the inner walls on both sides of the groove (4); the guide (17) is slidably connected to the slide rail (16); the guide (17) is fixedly connected to the expansion panel (5); and limiters (18) are provided at both ends of the two slide rails (16).

5. The lifting scaffold according to claim 1, characterized in that: The bottom of the bracket (1) is provided with casters (19).

6. The lifting scaffold according to claim 5, characterized in that: The caster (19) is provided with a brake (20).

7. The lifting scaffold according to claim 1, characterized in that: The operating platform (3) is provided with a handrail (21).

8. The lifting scaffold according to claim 1, characterized in that The bottom of the bracket (1) is threadedly connected to a lifting leg (22), and the bottom of the lifting leg (22) is provided with a leg plate (23).

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