Portable height-adjustable scaffold

By introducing adjustment and locking mechanisms into portable scaffolding, the problem of scaffolding imbalance after height adjustment is solved, thereby improving stability and safety.

CN223767117UActive Publication Date: 2026-01-06HENAN XINGYU CONSTRUCTION & INSTALLATION ENGINEERING CO LTD
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Patent Information

Application Number
CN202423281281.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-06
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing portable scaffolding cannot be height-adjusted after deployment, which restricts the working space for workers and makes it impossible to ensure that the scaffolding is on the same horizontal plane, increasing the risk of tilting and falling.

Method used

An adjustment mechanism is adopted, including legs, hollow pipe, lead screw and scale. The threaded connection of the lead screw and the indicator mark ensure that the legs remain on the same horizontal plane during the adjustment process, and the position is fixed by rubber pads and plug locking mechanism to improve stability and safety.

Benefits of technology

This technology enables portable scaffolding to maintain a level surface after height adjustment, reducing the risk of tilting, improving operating space and safety, and ensuring that it does not shift under external force or vibration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a portable height-adjustable scaffold, which relates to the technical field of scaffolds, and comprises an adjusting mechanism, the adjusting mechanism comprises a frame leg, the inner surface of the frame leg is provided with a hollow pipe, the inner surface of the frame leg is rotatably connected with one end of the hollow pipe, and the inner surface of the hollow pipe is provided with a screw rod 1. The hollow pipe is rotated to enable the first lead screw on the inner wall to move and be gradually exposed out of the inner surface of the frame leg, so that the overall length of the frame leg is increased, and in order to enable the four frame legs to be located on the same water surface in the adjusting process, the graduated scale is designed on one side of the frame leg, and the graduated scale is designed on the other side of the frame leg. When the lead screw moves, the inner plate slides on the inner surfaces of the frame legs, the inner plate is provided with the indicator, the indicator is always beside the graduated scale when moving, an operator can visually see the height change, and therefore it can be guaranteed that all the four frame legs are kept at the same level in the adjusting process, and the adjusting accuracy is improved. And the stability and the safety of the scaffold are improved.
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Description

Technical Field

[0001] This utility model relates to the field of scaffolding technology, and in particular to a portable adjustable-height scaffolding. Background Technology

[0002] Scaffolding refers to temporary support structures erected during construction. It is mainly used to support construction workers, materials, machinery and equipment, and to provide working surfaces and access routes to ensure construction efficiency and personnel safety.

[0003] In existing technologies, portable scaffolding is usually fixed after being deployed. When workers are carrying out related work, the scaffolding restricts their access to the work area, limiting their operating space. This may prevent them from completing certain delicate or high-altitude tasks. Furthermore, if there are no intuitive components to help workers determine whether the scaffolding is level after height adjustment, workers may be prone to tilting when working on it if it is not level, which could lead to accidents and increase the risk of workers falling. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a portable, height-adjustable scaffold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a portable adjustable height scaffold, comprising: an adjustment mechanism, an auxiliary mechanism provided on the inner wall of the adjustment mechanism, the adjustment mechanism including a leg, a hollow tube provided on the inner surface of the leg, the inner surface of the leg being rotatably connected to one end of the hollow tube, a lead screw provided on the inner surface of the hollow tube, the inner surface of the hollow tube being threadedly connected to the outer side of the lead screw, an inner plate provided at the top of the lead screw, the top of the lead screw being fixedly connected to the bottom side of the inner plate, a frame body provided at the top of the leg, and the top of the leg being movably connected to the bottom side of the frame body.

[0006] In a preferred embodiment, the auxiliary mechanism includes a push plate, one end of which is provided with a plug rod. One end of the push plate is fixedly connected to one end of the plug rod, the other end of the plug rod is engaged with the inner wall of the support leg, and the outer side of the push plate is slidably connected to the inner wall of the side plate.

[0007] In a preferred embodiment, a scale is provided on one side of the support leg, and one side of the support leg is fixedly connected to one side of the scale. An indicator is provided on one side of the scale, and one side of the scale corresponds to one end of the indicator.

[0008] In a preferred embodiment, one end of the indicator is fixedly connected to one side of the inner plate, and the outer side of the inner plate is slidably connected to the inner surface of the support leg.

[0009] In a preferred embodiment, a sliding groove is provided on one side of the support leg, and the inner surface of the sliding groove is slidably connected to one end of the side plate. A second lead screw is provided on the inner wall of one end of the side plate, and the inner wall of one end of the side plate is threadedly connected to the outer side of the second lead screw.

[0010] In a preferred embodiment, a movable block is provided at one end of the second lead screw, and one end of the second lead screw is rotatably connected to one end of the movable block. The outer side of the movable block is slidably connected to the inner surface of the side plate.

[0011] In a preferred embodiment, one end of the movable block is provided with a rubber pad, and one end of the movable block is fixedly connected to one side of the rubber pad.

[0012] In a preferred embodiment, one side of the rubber pad is snapped into one side of the empty tube.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. Rotating the empty pipe causes the lead screw on the inner wall to move and gradually protrude from the inner surface of the scaffold leg, thus increasing the overall length of the scaffold leg. To ensure that all four scaffold legs are at the same water level during adjustment, a scale is designed on one side of the scaffold leg. As the lead screw moves, the inner plate slides on the inner surface of the scaffold leg, and there is an indicator on the inner plate. The indicator will always be next to the scale as it moves, allowing the operator to visually see the change in height. This ensures that all four scaffold legs remain at the same level during adjustment, improving the stability and safety of the scaffold.

[0015] 2. Move the side plate up and down on the scaffold leg so that it is located on one side of the empty pipe. At this time, rotate the second screw so that the moving block is exposed on the inner edge of the side plate. The moving plate is designed with rubber pads. The rubber pads can fit and engage with the recessed part of the empty pipe after the moving plate is moved, ensuring that the position of the empty pipe remains unchanged after the first screw is adjusted and positioned. This design can effectively fix the position of the scaffold leg and ensure that the scaffold will not be displaced due to external force or vibration during use after the height is adjusted. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a portable adjustable-height scaffold provided by this utility model.

[0017] Figure 2 This is a side sectional view of the adjustment mechanism component of a portable adjustable height scaffold provided by this utility model.

[0018] Figure 3This is a side view of the adjustment mechanism and auxiliary mechanism components of a portable adjustable height scaffold provided by this utility model.

[0019] Figure 4 An enlarged structural schematic diagram of the adjustment mechanism component of a portable adjustable height scaffold provided by this utility model.

[0020] Legend:

[0021] 1. Adjustment mechanism; 11. Frame; 12. Frame leg; 13. Empty pipe; 14. Lead screw one; 15. Inner plate; 16. Side plate; 17. Lead screw two; 18. Moving block; 19. Rubber pad; 110. Indicator; 111. Scale; 112. Slide groove;

[0022] 2. Auxiliary mechanism; 21. Push plate; 22. Insert rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: As Figures 1-4As shown, this utility model provides a technical solution: a portable adjustable height scaffold, comprising: an adjustment mechanism 1, an auxiliary mechanism 2 provided on the inner wall of the adjustment mechanism 1, the adjustment mechanism 1 including a leg 12, a hollow tube 13 provided on the inner surface of the leg 12, the inner surface of the leg 12 being rotatably connected to one end of the hollow tube 13, a lead screw 14 provided on the inner surface of the hollow tube 13, the inner surface of the hollow tube 13 being threadedly connected to the outer side of the lead screw 14, an inner plate 15 provided at the top of the lead screw 14, the top of the lead screw 14 being fixedly connected to the bottom side of the inner plate 15, a frame body 11 provided at the top of the leg 12, the top of the leg 12 being movably connected to the bottom side of the frame body 11, a scale 111 provided on one side of the leg 12, one side of the leg 12 being fixedly connected to one side of the scale 111, and an indicator on one side of the scale 111. Marker 110, one side of scale 111 corresponds to one end of indicator 110, one end of indicator 110 is fixedly connected to one side of inner plate 15, the outer side of inner plate 15 is slidably connected to the inner surface of support leg 12, a slide groove 112 is provided on one side of support leg 12, the inner surface of slide groove 112 is slidably connected to one end of side plate 16, a second lead screw 17 is provided on the inner wall of one side of side plate 16, the inner wall of one side of side plate 16 is threadedly connected to the outer side of lead screw 17, a moving block 18 is provided on one end of lead screw 17, one end of lead screw 17 is rotatably connected to one end of moving block 18, the outer side of moving block 18 is slidably connected to the inner surface of side plate 16, a rubber pad 19 is provided on one end of moving block 18, one end of moving block 18 is fixedly connected to one side of rubber pad 19, one side of rubber pad 19 is engaged with one side of empty tube 13.

[0025] In this embodiment, when using this portable adjustable height scaffold, the screw rod 14 on the inner wall is moved by rotating the hollow tube 13 and gradually protrudes from the inner surface of the leg 12, thereby increasing the overall length of the leg 12. To ensure that the four legs 12 are on the same level during the adjustment process, a scale 111 is designed on one side of the leg 12. When the screw rod moves, the inner plate 15 slides on the inner surface of the leg 12, and there is an indicator 110 on the inner plate 15. The indicator 110 will always be next to the scale 111 when it moves, allowing the operator to intuitively see the change in height. This ensures that all four legs 12 remain at the same level during the adjustment process, improving the stability and safety of the scaffold and reducing the risk of tilting and imbalance.

[0026] Secondly, after the height adjustment is completed, the side plate 16 is moved up and down on the leg 12 so that it is located on one side of the empty pipe 13. At this time, the screw rod 17 is rotated so that the moving block 18 is exposed on the inner edge of the side plate 16. A rubber pad 19 is designed on the moving plate. The rubber pad 19 can fit and engage with the recess of the empty pipe 13 after the moving plate is moved, ensuring that the screw rod 14 keeps the empty pipe 13 in place after adjustment. This design can effectively fix the position of the leg 12 and ensure that the scaffolding will not be displaced due to external force or vibration during use after the height is adjusted, thus maintaining the stability of the overall structure.

[0027] Example 2: Figures 1-3 As shown, the auxiliary mechanism 2 includes a push plate 21, one end of which is provided with a plug rod 22. One end of the push plate 21 is fixedly connected to one end of the plug rod 22, and the other end of the plug rod 22 is engaged with the inner wall of the support leg 12. The outer side of the push plate 21 is slidably connected to the inner wall of the side plate 16.

[0028] In this embodiment, when the side plate 16 moves down, the insertion rod 22, which is used to push the push plate 21, enters the inner wall of the support leg 12. This ensures that the side plate 16 remains stable after the movement. The insertion of the insertion rod 22 into the inner wall of the support leg 12 forms a locking mechanism, ensuring that the side plate 16 will not easily move or detach after adjustment. This effectively prevents accidental movement caused by force. With the help of this stabilizing mechanism, users can perform related operations with more confidence without worrying about the equipment being fine-tuned due to external interference, thereby improving the consistency and accuracy of operation.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A portable height adjustable scaffold, characterised in that, Include: Adjusting mechanism (1), the inner wall of the adjusting mechanism (1) is provided with auxiliary mechanism (2), the adjusting mechanism (1) includes leg (12), the inner surface of the leg (12) is provided with empty pipe (13), the inner surface of the leg (12) is rotatably connected with one end of empty pipe (13), the inner surface of the empty pipe (13) is provided with screw rod one (14), the inner surface of the empty pipe (13) is threadedly connected with the outer side of screw rod one (14), the top end of screw rod one (14) is provided with inner plate (15), the top end of screw rod one (14) is fixedly connected with the bottom side of inner plate (15), the top end of leg (12) is provided with frame body (11), the top end of leg (12) is movably connected with the bottom side of frame body (11).

2. A portable height adjustable scaffold according to claim 1 wherein: The auxiliary mechanism (2) includes a push plate (21), one end of the push plate (21) is provided with a plug rod (22), one end of the push plate (21) is fixedly connected with one end of the plug rod (22), the other end of the plug rod (22) is clamped with the inner wall of the leg (12), the outer side of the push plate (21) is slidably connected with the inner wall of the side plate (16).

3. A portable height adjustable scaffold according to claim 1, wherein: One side of the leg (12) is provided with a scale (111), one side of the leg (12) is fixedly connected with one side of the scale (111), one side of the scale (111) is provided with an indicating mark (110), one side of the scale (111) corresponds to one end of the indicating mark (110).

4. A portable height adjustable scaffold according to claim 3 wherein: One end of the indicating mark (110) is fixedly connected with one side of the inner plate (15), the outer side of the inner plate (15) is slidably connected with the inner surface of the leg (12).

5. A portable height adjustable scaffold according to claim 1, wherein: One side of the leg (12) is provided with a sliding groove (112), the inner surface of the sliding groove (112) is vertically slidably connected with one end of the side plate (16), the inner wall of one end of the side surface of the side plate (16) is provided with a screw rod two (17), the inner wall of one end of the side surface of the side plate (16) is threadedly connected with the outer side of the screw rod two (17).

6. A portable height adjustable scaffold according to claim 5 wherein: One end of the screw rod two (17) is provided with a moving block (18), one end of the screw rod two (17) is rotatably connected with one end of the moving block (18), the outer side of the moving block (18) is slidably connected with the inner surface of the side plate (16).

7. A portable height adjustable scaffold according to claim 6 wherein: One end of the moving block (18) is provided with a rubber pad (19), one end of the moving block (18) is fixedly connected with one side of the rubber pad (19).

8. A portable height adjustable scaffold according to claim 7, wherein: One side of the rubber pad (19) is clamped with one side of the empty pipe (13).