Assembly type building lifting frame

Abstract

This invention relates to the field of lifting frame technology, and more specifically, to a lifting frame for prefabricated buildings, comprising a base and a lifting platform. The lifting platform is movably disposed on one side of the base, and the base is equipped with a control box. Several casters are movably and symmetrically arranged on the base. The lifting frame further includes: a lifting module disposed between the base and the lifting platform for adjusting the height of the lifting platform; and a limiting module disposed on the base and connecting the lifting module and the casters for adjusting the position of the casters and fixing the base to the ground. On one hand, it can raise the guardrail, effectively protecting the workers on the lifting platform, and also allows for real-time monitoring of the platform's height, facilitating workers to adjust the platform to the desired height. On the other hand, it can control the operation of the limiting module, improving the stability of the entire device during operation and preventing displacement, thus offering higher safety compared to traditional lifting frames.

Description

Technical Field

[0001] This invention relates to the field of lifting frame technology, and more specifically, to a lifting frame for prefabricated buildings. Background Technology

[0002] Construction lifting support frames, also known as "attached lifting support frames" or "lifting climbing frames," are external lifting frames that are attached to the outside of the building structure at a certain height during construction and can climb or descend layer by layer with the building structure, with anti-overturning and anti-falling functions.

[0003] Existing construction hoisting supports have a simple structure, but they also have the following drawbacks during use:

[0004] Existing construction hoists have poor stability. During high-altitude operations, they are easily affected by external forces and may shift. Furthermore, the height of the hoist cannot be accurately determined, making it inconvenient for workers to control the operation. Summary of the Invention

[0005] The purpose of this invention is to provide a lifting frame for prefabricated buildings to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A lifting frame for prefabricated buildings includes a base and a lifting platform. The lifting platform is movably mounted on one side of the base. A control box is mounted on the base. Several casters are movably and symmetrically arranged on the base. The lifting frame also includes:

[0008] A lifting module, located between the base and the lifting platform, is used to adjust the height of the lifting platform; and

[0009] The limit module, which is set on the base and connects the lifting module and the moving wheels, is used to adjust the position of the moving wheels and fix the base to the ground.

[0010] A further technical solution of this application: the lifting module includes:

[0011] Several adjusting blocks are provided, and adjusting blocks are movably installed on both the base and the lifting platform.

[0012] A scissor arm, having four endpoints, with two endpoints on one side movably connected to a lifting platform and a base respectively, and two endpoints on the other side movably connected to adjusting blocks on the lifting platform and the base respectively; and

[0013] The No. 2 electric telescopic rod is mounted on the base and its movable end is connected to the adjustment block on the base.

[0014] A further technical solution of this application: a resistance-reducing component is provided between the adjustment block on the base and the base to reduce the frictional resistance between the two.

[0015] A further technical solution of this application: several guide rails are symmetrically arranged on the lifting platform, and a movable block is movably arranged in the guide rail. The movable blocks on the same side are connected by a guardrail, and the movable blocks are movably connected by a telescopic component and a scissor arm.

[0016] A further technical solution of this application: the telescopic component includes:

[0017] The movable rod is movably connected at one end to the movable block;

[0018] A fixed rod, one end of which is movably connected to the scissor arm, and the other end of the movable rod is slidably inserted into the fixed rod;

[0019] A slider is movably disposed within a fixed rod and elastically connected to the two; the other end of the slider is connected to the movable rod.

[0020] A conductive block is mounted on the slider, and a resistance strip is installed inside the fixed rod along the moving path of the conductive block.

[0021] A further technical solution of this application: the limiting module includes:

[0022] The skateboards, which are the same number as the number of wheels and are symmetrically and movablely mounted on the base, are connected to the wheels.

[0023] The first electric telescopic rod is mounted on the base, and its movable end is connected to the sliding plate; and

[0024] A fixing component, mounted on the base, is used to secure the base to the ground.

[0025] A further technical solution of this application: the fixing component includes:

[0026] An abutment plate, one end of which is hinged to the base and located on the moving path of the adjusting block, is connected to the base via an elastic element;

[0027] A pressure plate is movably mounted on the base, and a number of limiting pins are equidistantly arranged on the pressure plate;

[0028] The abutment block is movably mounted on the base and connected to the pressure plate; and

[0029] The sliding column is connected to the abutting block, and the pressure plate is formed with a through groove that slides with the sliding column.

[0030] Compared with the prior art, the technical solution provided by the embodiments of the present invention has the following beneficial effects:

[0031] This invention, through its interconnected structure, controls the operation of the second electric telescopic rod and causes the lifting platform to move upward. On the one hand, it can raise the guardrail, effectively protecting the workers on the lifting platform. On the other hand, it can monitor the height of the lifting platform in real time, allowing workers to adjust the platform to the desired height. Furthermore, it can control the operation of the limit module, improving the stability of the entire device during operation and preventing displacement. Compared to traditional lifting frames, this invention offers higher safety. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the lifting frame for prefabricated buildings in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the telescopic component in the prefabricated building lifting frame in an embodiment of the present invention;

[0034] Figure 3 This is an enlarged structural schematic diagram of point A in the prefabricated building lifting frame in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the contact plate in the prefabricated building lifting frame in an embodiment of the present invention.

[0036] Explanation of the labels in the diagram:

[0037] 1-Base, 2-Moving wheel, 3-Skateboard, 4-Electric telescopic rod No. 1, 5-Lifting platform, 6-Guide rail, 7-Moving block, 8-Moving rod, 9-Fixed rod, 10-Slider, 11-Conductive block, 12-Resistor strip, 13-Scissor arm, 14-Electric telescopic rod No. 2, 15-Control box, 16-Guardrail, 17-Adjusting block, 18-Roller, 19-Abutment plate, 20-Spring, 21-Pressure plate, 22-Limit pin, 23-Abutment block, 24-Through groove, 25-Sliding column. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention will be further described below with reference to the embodiments.

[0039] Please see Figures 1-4In one embodiment of this application, a lifting frame for prefabricated buildings includes a base 1 and a lifting platform 5. The lifting platform 5 is movably disposed on one side of the base 1. A control box 15 is disposed on the base 1. A plurality of casters 2 are movably and symmetrically disposed on the base 1. The lifting frame further includes:

[0040] A lifting module, located between the base 1 and the lifting platform 5, is used to adjust the height of the lifting platform 5; and

[0041] A limit module is installed on the base 1 and connects the lifting module and the moving wheel 2. It is used to adjust the position of the moving wheel 2 and fix the base 1 to the ground.

[0042] In this embodiment, the lifting module includes, for example:

[0043] Adjustment blocks 17, in several quantities, are movably provided on both the base 1 and the lifting platform 5;

[0044] The scissor arm 13 has four ends, two of which are movably connected to the lifting platform 5 and the base 1 respectively, and the other two ends are movably connected to the adjusting block 17 on the lifting platform 5 and the base 1 respectively; and

[0045] The second electric telescopic rod 14 is mounted on the base 1 and its movable end is connected to the adjusting block 17 on the base 1.

[0046] It should be noted that a friction-reducing component is provided between the adjusting block 17 on the base 1 and the base 1 to reduce the frictional resistance between the two.

[0047] It should be noted that the drag-reducing component can be a ball or a roller 18. In this embodiment, the drag-reducing component is preferably a roller 18. The roller 18 is movably mounted on the adjusting block 17. The specific model parameters of the roller 18 can be selected according to the actual situation, and will not be listed here.

[0048] In practical applications, the second electric telescopic rod 14 is energized and extended by the control box 15, which drives the adjusting block 17 to move horizontally, causing the scissor arm 13 to deform, thereby controlling the lifting platform 5 to move upward. During this process, the limit module can be activated to fix the entire device on the ground, which can prevent the base 1 from shifting when the staff is working at height, improve the stability of the entire device, and effectively protect the safety of the staff.

[0049] Please see Figure 1 as well as Figure 2In another preferred embodiment of this application, a plurality of guide rails 6 are symmetrically arranged on the lifting platform 5, and a movable block 7 is movably arranged in the guide rail 6. The movable blocks 7 on the same side are connected by a guardrail 16, and the movable blocks 7 are movably connected by a telescopic member and a scissor arm 13.

[0050] In this embodiment, the telescopic member, by way of example, includes:

[0051] One end of the movable rod 8 is movably connected to the movable block 7;

[0052] The fixed rod 9 is movably connected at one end to the scissor arm 13, and the other end of the movable rod 8 is slidably inserted into the fixed rod 9;

[0053] Slider 10 is movably disposed within fixed rod 9 and elastically connected to it; the other end of slider 10 is connected to movable rod 8.

[0054] A conductive block 11 is disposed on the slider 10, and a resistor strip 12 is disposed inside the fixed rod 9 along the moving path of the conductive block 11.

[0055] It should be noted that this embodiment is not limited to the method of using the conductive block 11 and the resistor bar 12 to monitor the position of the slider 10 within the fixed rod 9. Infrared ranging sensors or laser ranging sensors can also be used instead, which will not be listed here.

[0056] During the process of the scissor arm 13 extending and raising the lifting platform 5, the telescopic component can drive the moving block 7 and the guardrail 16 to move upward, thereby effectively protecting the personnel on the lifting platform 5. When the guardrail 16 moves to the limit position, the telescopic component deforms, that is, the slider 10 moves relative to the fixed rod 9, thereby causing the conductive block 11 and the resistor strip 12 to contact. By judging the contact position of the conductive block 11 and the resistor strip 12, the height of the entire lifting platform 5 is determined and fed back to the control box 15. The personnel can know whether the lifting platform 5 has reached the expected height based on the data fed back from the control box 15.

[0057] Please see Figures 1-4 In another preferred embodiment of this application, the limiting module includes:

[0058] The number of skateboards 3 and the number of movable wheels 2 are the same and symmetrically movable on the base 1, and the skateboards 3 and the movable wheels 2 are connected;

[0059] Electric telescopic rod 4, mounted on base 1, with its movable end connected to slide plate 3; and

[0060] A fixing component is provided on the base 1 to fix the base 1 to the ground.

[0061] In this embodiment, the fixing component is exemplary, including:

[0062] The contact plate 19 is hinged to the base 1 at one end and located on the moving path of the adjusting block 17. The contact plate 19 is connected to the base 1 by an elastic element.

[0063] A pressure plate 21 is movably mounted on the base 1, and a plurality of limiting pins 22 are equidistantly arranged on the pressure plate 21;

[0064] The abutment block 23 is movably mounted on the base 1 and connected to the pressure plate 21; and

[0065] The sliding column 25 is connected to the abutting block 23, and the pressure plate 21 has a through groove 24 formed on it that slides with the sliding column 25.

[0066] It should be noted that the elastic element can be a spring 20, a spring sheet, or an elastic steel plate structure. In this embodiment, the elastic element is preferably a spring 20, which is connected between the contact plate 19 and the base 1. The specific model parameters of the spring 20 can be selected according to the actual situation, and will not be listed here.

[0067] During the process of controlling the No. 2 electric telescopic rod 14 to raise the lifting platform 5 to the working height, the adjusting block 17 and the contact plate 19 meet and abut, causing the contact plate 19 to rotate along its hinge. Under the sliding cooperation between the through groove 24 and the sliding column 25, the contact block 23 and the pressure plate 21 move towards the ground, inserting the limiting pin 22 into the ground, thereby fixing the entire device and preventing displacement of the workers when using the device.

[0068] How this application works:

[0069] The second electric telescopic rod 14 is energized and extended by the control box 15, which drives the adjusting block 17 to move horizontally and causes the scissor arm 13 to deform, thereby controlling the lifting platform 5 to move upward. During the process of controlling the second electric telescopic rod 14 to raise the lifting platform 5 to the working height, the adjusting block 17 and the contact plate 19 meet and abut, causing the contact plate 19 to rotate along its hinge. Under the sliding cooperation between the through groove 24 and the sliding column 25, the contact block 23 and the pressure plate 21 move towards the ground, inserting the limiting nail 22 into the ground, thereby fixing the entire device and preventing displacement when the operator uses the device. During the process of the scissor arm 13 extending and raising the lifting platform 5, the telescopic component can drive the moving block 7 and the guardrail 16 to move upward, thereby effectively protecting the personnel on the lifting platform 5. When the guardrail 16 moves to the limit position, the telescopic component deforms, that is, the slider 10 moves relative to the fixed rod 9, thereby causing the conductive block 11 and the resistor strip 12 to contact. By judging the contact position of the conductive block 11 and the resistor strip 12, the height of the entire lifting platform 5 is determined and fed back to the control box 15. The personnel can know whether the lifting platform 5 has reached the expected height based on the data fed back from the control box 15.

[0070] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0071] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lifting frame for prefabricated buildings, comprising a base and a lifting platform, wherein the lifting platform is movably disposed on one side of the base, a control box is disposed on the base, and a plurality of casters are movably and symmetrically disposed on the base, characterized in that, The lifting frame also includes: A lifting module, positioned between the base and the lifting platform, is used to adjust the height of the lifting platform. The lifting module includes: several adjusting blocks, each movably mounted on both the base and the lifting platform; a scissor arm with four endpoints, two on one side movably connected to the lifting platform and the base respectively, and two on the other side movably connected to the adjusting blocks on the lifting platform and the base respectively; and a second electric telescopic rod, mounted on the base with its movable end connected to an adjusting block on the base; several guide rails are symmetrically arranged on the lifting platform, with movable blocks movably mounted within each guide rail. Movable blocks on the same side are connected by guardrails, and the movable blocks are movably connected to the scissor arm via telescopic components; the telescopic component includes: a movable rod, one end movably connected to a movable block; a fixed rod, one end movably connected to the scissor arm, the other end of which is slidably inserted into the fixed rod; a slider, movably mounted within the fixed rod and elastically connected to it, the slider being connected to the other end of the movable rod; and a conductive block mounted on the slider, with a resistance strip positioned along the movement path of the conductive block within the fixed rod; and... The limit module, which is set on the base and connects the lifting module and the moving wheels, is used to adjust the position of the moving wheels and fix the base to the ground.

2. The prefabricated building lifting frame according to claim 1, characterized in that, A friction-reducing component is provided between the adjusting block on the base and the base to reduce the frictional resistance between them.

3. The prefabricated building lifting frame according to claim 1, characterized in that, The limiting module includes: The skateboards, which are the same number as the number of wheels and are symmetrically and movablely mounted on the base, are connected to the wheels. The first electric telescopic rod is mounted on the base, and its movable end is connected to the sliding plate; and A fixing component, mounted on the base, is used to secure the base to the ground.

4. The prefabricated building lifting frame according to claim 3, characterized in that, The fixing component includes: An abutment plate, one end of which is hinged to the base and located on the moving path of the adjusting block, is connected to the base via an elastic element; A pressure plate is movably mounted on the base, and a number of limiting pins are equidistantly arranged on the pressure plate; The abutment block is movably mounted on the base and connected to the pressure plate; and The sliding column is connected to the abutting block, and the pressure plate is formed with a through groove that slides with the sliding column.

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