A construction lifting platform

Abstract

This utility model discloses a lifting platform for construction, including a movable base, a support frame rotatably fixed to the movable base, a rotating shaft rotatably connected to the support frame, a support platform fixed to the rotating shaft, a hydraulic lifting frame mounted on the support platform, a worm gear fixed to the lower side of the support platform, two fixed seats fixed to the upper side of the support frame, a worm gear rotatably connected between the two fixed seats, the worm gear meshing with the worm gear, a rotating wheel fixed to the worm gear, a level fixed to the support platform, and a support platform fixed to the upper part of the support frame. This utility model, through the worm gear and worm mechanism in conjunction with the level, allows manual adjustment of the support platform to a horizontal state, and utilizes the self-locking characteristic of the worm gear drive to lock the angle, overcoming the risk of tilting due to uneven ground. This structure ensures that the platform remains perpendicular to the direction of gravity during lifting, reducing the risk of equipment tipping over and adapting to various complex construction terrains.

Description

Technical Field

[0001] This utility model relates to the field of lifting platform technology, and more specifically, to a lifting platform for construction. Background Technology

[0002] A scissor lift is a lifting device used to transport personnel or goods within a vertical passageway. It typically takes the form of a platform or a semi-enclosed work cage and is widely used on construction sites. This equipment uses a drive mechanism to control the extension and retraction of the scissor arms, thereby achieving lifting movement and enabling workers to perform tasks at height.

[0003] Existing lifting platforms still have the following problems during construction operations: If the construction site is uneven, the lifting platform is prone to tilting during the lifting process. Due to uneven stress on the base support points, the center of gravity shift gradually increases with the platform height, leading to a further expansion of the tilt range. This phenomenon not only affects operational stability but may also cause equipment to tip over or structural damage, posing significant safety hazards. Furthermore, the work platform of existing lifting platforms is usually a fixed structure, which cannot be expanded or extended according to actual construction needs, limiting the working range. When high-altitude operations need to be performed in different locations, operators often need to raise and lower the equipment and move the base position multiple times. Frequent adjustments not only prolong working time but also increase operational complexity and equipment wear, reducing work efficiency and ease of use. In view of this, we propose a lifting platform for building construction. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a lifting platform for construction to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lifting platform for construction, comprising a movable base, a support frame rotatably fixed to the movable base, a rotating shaft rotatably connected to the support frame, a support platform fixed to the rotating shaft, a hydraulic lifting frame mounted on the support platform, a worm gear fixed to the lower side of the support platform, two fixed seats fixed to the upper side of the support frame, a worm gear rotatably connected between the two fixed seats, the worm gear meshing with the worm wheel, a rotating wheel fixed to the worm gear, a level fixed to the support platform, and a support platform fixed to the upper part of the support frame.

[0006] The present invention is further configured such that the central axis of the worm gear coincides with the central axis of the rotating shaft.

[0007] The present invention is further configured such that the support platform includes a connecting plate, the connecting plate is installed on the upper side of the hydraulic lifting frame, and a fence is fixedly connected to the connecting plate.

[0008] The present invention is further configured such that guide rails are fixedly connected to both sides of the connecting plate, and a second fence is slidably connected between the two guide rails, and a support plate is fixedly connected to the second fence.

[0009] The present invention is further configured such that the support plate and the connecting plate are slidably connected.

[0010] The present invention is further configured such that a fixing member is fixedly connected to the lower side of the guide rail, a sliding member is slidably connected to the fixing member, and a counterweight is fixedly connected between the two sliding members.

[0011] The present invention is further configured such that a rack one is fixedly connected to the upper side of one of the guide rails, and a rack two is fixedly connected to the sliding member near the rack one.

[0012] The present invention is further configured such that a motor is fixedly connected to the guide rail, and a gear is fixedly connected to the output shaft of the motor, the gear meshing with rack one and rack two.

[0013] Compared with the prior art, this utility model provides a lifting platform for construction, which has the following advantages: 1. This utility model, through the cooperation of a worm gear and worm mechanism with a level, allows for manual adjustment of the support platform to a horizontal state. The self-locking characteristic of the worm gear transmission locks the angle, overcoming the risk of tilting due to uneven ground. This structure ensures that the platform remains perpendicular to the direction of gravity during lifting and lowering, reducing the risk of equipment tipping and adapting to various complex construction terrains.

[0014] 2. This utility model achieves expansion through a motor-driven gear and rack system, enabling workers to perform lateral operations and reducing the number of times the platform needs to be moved. Combined with a synchronously moving counterweight mechanism, it automatically balances part of the worker's weight when the expanded platform carries them, significantly suppressing swaying during operation and improving operational comfort and construction accuracy. Attached Figure Description

[0015] Figure 1 This is a front structural diagram of a construction lifting platform according to the present invention; Figure 2 This is a cross-sectional view of the support frame in this utility model; Figure 3 This is a schematic diagram of the structure of fence one and fence two in this utility model; Figure 4 This is a schematic diagram of the guide rail and fixing component in this utility model; Figure 5 This is a schematic diagram of the guide rail and counterweight in this utility model.

[0016] In the diagram: 1. Movable base; 2. Support frame; 3. Rotating shaft; 4. Support platform; 5. Hydraulic lifting frame; 6. Worm gear; 7. Fixed seat; 8. Worm; 9. Rotating wheel; 10. Level; 11. Connecting plate; 12. Fence one; 13. Guide rail; 14. Fence two; 15. Support plate; 16. Fixing component; 17. Sliding component; 18. Counterweight; 19. Rack one; 20. Rack two; 21. Gear; 22. Motor. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] Please see Figures 1-5 A construction lifting platform includes a movable base 1, a support frame 2 rotatably fixed to the movable base 1, a rotating shaft 3 rotatably connected to the support frame 2, a support platform 4 fixed to the rotating shaft 3, a hydraulic lifting frame 5 mounted on the support platform 4, a worm gear 6 fixed to the lower side of the support platform 4, two fixed seats 7 fixed to the upper side of the support frame 2, a worm 8 rotatably connected between the two fixed seats 7, the worm 8 meshing with the worm gear 6, a rotating wheel 9 fixed to the worm 8, a level 10 fixed to the support platform 4, and a support platform fixed to the upper part of the support frame 2; the central axis of the worm gear 6 coincides with the central axis of the rotating shaft 3.

[0021] Please see Figures 3-5The support platform includes a connecting plate 11, which is installed on the upper side of the hydraulic lifting frame 5. A first guardrail 12 is fixedly connected to the connecting plate 11. Guide rails 13 are fixedly connected to both sides of the connecting plate 11. A second guardrail 14 is slidably connected between the two guide rails 13. A support plate 15 is fixedly connected to the second guardrail 14. The support plate 15 is slidably connected to the connecting plate 11. A fixing member 16 is fixedly connected to the lower side of the guide rail 13. A sliding member 17 is slidably connected to the fixing member 16. A counterweight 18 is fixedly connected between the two sliding members 17. A rack 19 is fixedly connected to the upper side of one of the guide rails 13. A rack 20 is fixedly connected to the sliding member 17 near the rack 19. A motor 22 is fixedly connected to the guide rail 13. A gear 21 is fixedly connected to the output shaft of the motor 22. The gear 21 meshes with the rack 19 and the rack 20.

[0022] The working principle of this utility model: Move the movable base 1 to the designated working position, then fix the movable base 1 in place. Adjust the angle of the support platform 4 according to the indication of the level 10. The specific adjustment method is as follows: Rotate the rotating wheel 9, which drives the worm 8 to rotate. The worm 8 drives the worm wheel 6 to rotate, and the worm wheel 6 drives the rotating shaft 3 and the support platform 4 until the level indicator 10 indicates that the support platform 4 is in a horizontal state. Then stop rotating the rotating wheel 9. According to the self-locking principle of the worm 8 and the worm wheel 6, the support platform 4 is kept parallel to the direction of gravity, thereby ensuring the stability of the device during use and reducing the risk of tipping over.

[0023] In operation, the hydraulic lifting frame 5 is activated, causing the connecting plate 11 and its components to move vertically upwards. When the connecting plate 11 reaches the designated height, the hydraulic lifting frame 5 is deactivated, allowing workers to perform construction work at this height. When lateral work is required, the motor 22 is activated. The output shaft of the motor 22 drives racks 19 and 20 via gear 21. Rack 19 moves the fence 14 and support plate 15 to the right, while rack 20 moves the sliding member 17 along the fixed member 16 to the left. The two sliding members 17 then move the counterweight 18 to the left. The motor 22 is then deactivated, stopping the fence 14 and support plate 15. When a worker stands on the support plate 15, the counterweight 18 balances part of the worker's weight, reducing swaying during construction. After the construction work is completed, the output shaft of the motor 22 is reversed, resetting the fence 14 and support plate 15, but not resetting the hydraulic lifting frame 5 downwards.

[0024] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting platform for construction work, comprising a mobile base (1), characterised in that: The movable base (1) is rotatably fixed to a support frame (2), the support frame (2) is rotatably connected to a rotating shaft (3), the rotating shaft (3) is fixed to a support platform (4), the support platform (4) is equipped with a hydraulic lifting frame (5), the lower side of the support platform (4) is fixed to a worm gear (6), the upper side of the support frame (2) is fixed to two fixed seats (7), the two fixed seats (7) are rotatably connected to a worm (8), the worm (8) meshes with the worm gear (6), the worm (8) is fixed to a rotating wheel (9), the support platform (4) is fixed to a level (10), and the upper part of the support frame (2) is fixed to a support platform.

2. The elevating platform according to claim 1, wherein: The central axis of the worm gear (6) coincides with the central axis of the rotating shaft (3).

3. The elevating platform according to claim 2, wherein: The support platform includes a connecting plate (11), which is installed on the upper side of the hydraulic lifting frame (5), and a fence (12) is fixedly connected to the connecting plate (11).

4. The elevating platform according to claim 3, wherein: Guide rails (13) are fixedly connected to both sides of the connecting plate (11), and a second fence (14) is slidably connected between the two guide rails (13). A support plate (15) is fixedly connected to the second fence (14).

5. The elevating platform according to claim 4, wherein: The support plate (15) is slidably connected to the connecting plate (11).

6. The elevating platform according to claim 5, wherein: A fixing member (16) is fixedly connected to the lower side of the guide rail (13), and a sliding member (17) is slidably connected to the fixing member (16). A counterweight (18) is fixedly connected between the two sliding members (17).

7. The elevating platform according to claim 6, wherein one of the A rack one (19) is fixedly connected to the upper side of the guide rail (13), and a rack two (20) is fixedly connected to the sliding member (17) near the rack one (19).

8. The elevating platform according to claim 7, wherein: The guide rail (13) is fixedly connected to a motor (22), and the output shaft of the motor (22) is fixedly connected to a gear (21), which meshes with the rack one (19) and the rack two (20).

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