Tunnel construction lifting platform with flexible height

Abstract

This utility model discloses a tunnel construction lifting platform with flexible height adjustment, relating to the field of tunnel construction technology. The utility model includes a base plate, a work platform on top of the base plate, and an adjustment mechanism on top of the base plate. The utility model supports the power unit via multi-stage telescopic plates, allowing the power unit to move a movable block via a threaded rod. The movable block, in turn, moves a support frame via a movable frame. The movable frame and support frame are connected to the inner side of a fixed frame via pins, allowing the angles of the movable frame and support frame to change simultaneously. This facilitates the lifting and lowering of the fixed frame via the support frame, which in turn moves the work platform, allowing for easy height adjustment. A motor then drives a first bevel gear to rotate, which in turn drives a threaded column via a second bevel gear. The threaded column, through an extension plate, moves an auxiliary platform, extending the length of the work platform and expanding the construction area, thus achieving the purpose of flexible adjustment of the device.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction technology, and in particular relates to a tunnel construction lifting operation platform that can flexibly change height. Background Technology

[0002] The definition of construction hoists is broader. Construction platforms also belong to the construction hoist series. They consist of several parts, including a car, drive mechanism, standard section, wall attachment, chassis, railing, and electrical system. In tunnel construction practice, when it is necessary to carry out construction and monitoring at higher positions in the tunnel, the working machinery used is usually also a working platform of the construction hoist series.

[0003] Existing tunnel construction lifting platforms typically limit their functionality to height adjustment, failing to allow for flexible adjustments based on varying site conditions. This restricts the platform's utilization rate, ultimately impacting work efficiency.

[0004] To address these issues, we offer a tunnel construction lifting platform with adjustable height. Utility Model Content

[0005] The purpose of this utility model is to provide a tunnel construction lifting platform with flexible height adjustment. Through the cooperation of a motor, a first bevel gear, a second bevel gear, a threaded column, an extension plate, and an auxiliary platform, it solves the problem in the prior art that the platform cannot be flexibly adjusted, thus reducing the utilization rate of the device.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a tunnel construction lifting platform with flexible height adjustment, comprising a base plate, a work platform on top of the base plate, an adjustment mechanism on top of the base plate, and an extension mechanism inside the work platform. The adjustment mechanism includes a power supply unit, a multi-stage telescopic plate, a threaded rod, a movable block, a movable frame, a support frame, and a fixed frame. The power supply unit is located between the base plate and the work platform. The multi-stage telescopic plate is fixed to the bottom of the power supply unit and extends into the base plate. The threaded rod is fixed to one side of the power supply unit. The movable block is threaded onto the surface of the threaded rod. The movable frame and the support frame are fixed. All support frames are movable on the surface of the movable block. The bottom of the support frame is movably connected to the inner side of the movable frame. The fixed frame is movable to the bottom of the movable frame and the top of the support frame via movable rods. The surface of the fixed frame is fixedly connected to the top of the base plate and the bottom of the worktable. The extension mechanism includes a motor, a first bevel gear, a second bevel gear, a threaded column, an extension plate, and an auxiliary platform. The motor is fixed inside the worktable. The first bevel gear is fixed to the motor shaft by a rotating block. The second bevel gear meshes with the surface of the first bevel gear. The threaded column is fixed to the other side of the second bevel gear. The extension plate is threaded onto the threaded column. The extension plate extends to the outside of the workbench, and the auxiliary platform is fixed to the other side of the extension plate. The power supply is placed between the base plate and the workbench. A multi-stage telescopic plate is installed at the bottom of the power supply and extends into the base plate. Two threaded rods are installed on both sides of the power supply. Four movable blocks movably install two of the movable blocks at one end of the two threaded rods, and the other two movable blocks are respectively installed on the surface of the two threaded rods using internal threads. The tops of two movable frames are installed on the surface of the movable blocks, and the bottoms of two support frames are installed on the surface of the movable blocks. The bottoms of the support frames are located inside the movable frames. Two fixed frames are respectively installed on the top of the base plate and the bottom of the workbench. The movable frames and support frames are respectively installed inside the fixed frames using movable rods to facilitate the adjustment of the height of the workbench. The motor is installed inside the workbench. Two first bevel gears are installed on the motor shaft using rotating blocks, and two second bevel gears are installed on the surface of the first bevel gears so that the teeth of the first bevel gears and the teeth of the second bevel gears maintain meshing contact. A threaded column is installed on the second bevel gears. The extension plate is installed on the surface of the threaded column using internal threads. The extension plate extends to the outside of the workbench, and the auxiliary platform is installed on the extension plate to facilitate the adjustment of the usable area of ​​the workbench.

[0008] The present invention is further configured such that both sides of the top of the base plate are movably connected to movable wheels via bearings, and the surface of the movable wheels is fitted with anti-slip rings.

[0009] The present invention is further configured such that a protective plate is fixedly connected to the top of the workbench, a guide rod is movably connected inside the protective plate, and the other side of the guide rod extends to the outside of the protective plate and is fixedly connected to one side of the auxiliary platform.

[0010] The present invention is further configured such that a limiting block is fixedly connected to the surface of the threaded rod, and the limiting block is circular in shape.

[0011] The present invention is further configured such that a movable groove is provided inside the workbench, and the surfaces of the first bevel gear and the second bevel gear are movably connected to the inner wall of the movable groove.

[0012] The present invention is further configured such that support blocks are fixedly connected to both sides of the bottom of the workbench, and one side of the support block is fixedly connected to one side of the fixed frame.

[0013] The present invention is further configured such that a safety rope loop is fitted on the surface of the protective plate, and the safety rope loop extends into the interior of the protective plate.

[0014] The present invention is further configured such that a tool box is fixedly connected to one side of the protective plate, and a lid is hinged to the top of the tool box via a hinge.

[0015] The present invention has the following beneficial effects.

[0016] This invention uses multi-stage telescopic plates to support the power supply unit, which in turn moves a movable block via a threaded rod. The movable block, in turn, moves a support frame via a movable frame. The movable frame and support frame are connected to the inner side of a fixed frame via pins, allowing the angles of the movable frame and support frame to change simultaneously. This facilitates the lifting and lowering of the fixed frame via the support frame, which in turn moves the worktable, thus allowing for easy adjustment of the worktable's height. Next, a motor drives a first bevel gear to rotate, which in turn drives a threaded column via a second bevel gear. The threaded column, through an extension plate, moves an auxiliary platform, extending the length of the worktable and expanding the construction area. This allows the device to be easily and flexibly adjusted. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a 3D view of a tunnel construction lifting platform that can flexibly change height.

[0019] Figure 2 This is a side view of a tunnel construction lifting platform that can flexibly change height.

[0020] Figure 3 This is a cross-sectional view of the work platform in a tunnel construction lifting platform with adjustable height.

[0021] Figure 4 This is a cross-sectional view of the protective plate in a tunnel construction lifting platform that can flexibly change height.

[0022] Figure 5 This is a bottom view of the work platform in a tunnel construction lifting platform with flexible height adjustment.

[0023] In the attached diagram: 1. Base plate; 2. Workbench; 31. Power supply; 32. Multi-stage telescopic plate; 33. Threaded rod; 34. Movable block; 35. Movable frame; 36. Support frame; 37. Fixed frame; 41. Motor; 42. First bevel gear; 43. Second bevel gear; 44. Threaded column; 45. Extension plate; 46. Auxiliary platform; 5. Protective plate; 6. Guide rod; 7. Limiting block; 8. Movable groove; 9. Support block; 10. Safety rope loop; 11. Tool box; 12. Moving wheel. Detailed Implementation

[0024] The technical solutions of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a tunnel construction lifting platform with flexible height adjustment, including a base plate 1, a work platform 2 on the top of the base plate 1, an adjustment mechanism on the top of the base plate 1, and an extension mechanism inside the work platform 2. The adjustment mechanism includes a power supply 31, a multi-stage telescopic plate 32, a threaded rod 33, a movable block 34, a movable frame 35, a support frame 36, and a fixed frame 37. The power supply 31 is located between the base plate 1 and the work platform 2. The multi-stage telescopic plate 32 is fixed to the bottom of the power supply 31, and the bottom of the multi-stage telescopic plate 32 extends into the interior of the base plate 1. The threaded rod 33 is fixed to one side of the power supply 31. The movable block 34 is threaded onto the surface of the threaded rod 33. The movable frame 35 and the support frame 36 are both movable on the surface of the movable block 34. The bottom of the support frame 36 is fixed. The fixed frame 37 is movably connected to the inside of the movable frame 35 and the top of the support frame 36 via movable rods. The surface of the fixed frame 37 is fixedly connected to the top of the base plate 1 and the bottom of the worktable 2. The extension mechanism includes a motor 41, a first bevel gear 42, a second bevel gear 43, a threaded column 44, an extension plate 45, and an auxiliary platform 46. The motor 41 is fixed inside the worktable 2. The first bevel gear 42 is fixed to the shaft of the motor 41 by a rotating block. The second bevel gear 43 meshes with the surface of the first bevel gear 42. The threaded column 44 is fixed to the other side of the second bevel gear 43. The extension plate 45 is threaded onto the surface of the threaded column 44 and extends to the outside of the worktable 2. The auxiliary platform 46 is fixed to the other side of the extension plate 45.

[0027] Specifically: The power supply unit 31 is positioned between the base plate 1 and the worktable 2. A multi-stage telescopic plate 32 is installed at the bottom of the power supply unit 31, extending into the base plate 1. Two threaded rods 33 are installed on both sides of the power supply unit 31. Four movable blocks 34 are used to movably install two of the movable blocks 34 onto one end of the two threaded rods 33, while the other two movable blocks 34 are installed on the surfaces of the two threaded rods 33 using internal threads. The tops of two movable frames 35 are installed on the surfaces of the movable blocks 34, and the bottoms of two support frames 36 are installed on the surfaces of the movable blocks 34, with the bottoms of the support frames 36 located inside the movable frames 35. Two fixed frames 37 are installed at the top of the base plate 1 and the bottom of the worktable 2, respectively. The movable frame 35 and the support frame 36 are respectively installed inside the fixed frame 37 using movable rods, which facilitates the adjustment of the height of the workbench 2. The motor 41 is installed inside the workbench 2. Two first bevel gears 42 are installed on the rotating shaft of the motor 41 using rotating blocks. Two second bevel gears 43 are installed on the surface of the first bevel gears 42, so that the teeth of the first bevel gears 42 and the teeth of the second bevel gears 43 maintain meshing contact. The threaded column 44 is installed on the second bevel gears 43. The extension plate 45 is installed on the surface of the threaded column 44 using internal threads. The extension plate 45 extends outside the workbench 2. The auxiliary platform 46 is installed on the extension plate 45, which facilitates the adjustment of the usable area of ​​the workbench 2.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, both sides of the top of the base plate 1 are movably connected to movable wheels 12 via bearings. The surface of the movable wheels 12 is fitted with anti-slip rings. The top of the workbench 2 is fixedly connected to a protective plate 5. A guide rod 6 is movably connected inside the protective plate 5. The other side of the guide rod 6 extends to the outside of the protective plate 5 and is fixedly connected to one side of the auxiliary platform 46. A limit block 7 is fixedly connected to the surface of the threaded rod 33. The limit block 7 is circular in shape. An movable groove 8 is opened inside the workbench 2. The surfaces of the first bevel gear 42 and the second bevel gear 43 are movably connected to the inner wall of the movable groove 8. Support blocks 9 are fixedly connected to both sides of the bottom of the workbench 2. One side of the support block 9 is fixedly connected to one side of the fixed frame 37. A safety rope loop 10 is fitted on the surface of the protective plate 5. The safety rope loop 10 extends into the interior of the protective plate 5. A tool box 11 is fixedly connected to one side of the protective plate 5. The top of the tool box 11 is hinged to a lid via a hinge.

[0030] Specifically: Four movable wheels 12 are mounted on the bottom of the base plate 1 using bearings to facilitate the movement of the device; two protective plates 5 are mounted on the top of the workbench 2 to protect the operator on the workbench 2; a guide rod 6 is mounted inside the protective plate 5, extending it outside the protective plate 5, and the other end of the guide rod 6 is mounted on one side of the auxiliary platform 46 to support the extended auxiliary platform 46, thereby enhancing the stability of the auxiliary platform 46; a circular limit block 7 is mounted in the middle of the threaded rod 33 to limit the movement of the movable block 34; four support blocks 9 are mounted on the bottom of the workbench 2, keeping the other side of the support block 9 fixedly connected to the fixing frame 37 to enhance the support effect of the fixing frame 37 on the workbench 2; a safety rope loop 10 is mounted on the protective plate 5 to lock the operator's safety rope onto the safety rope loop 10; and four tool boxes 11 are mounted on one side of the protective plate 5 to store different tools on both sides of the device.

[0031] The working principle of this utility model is as follows: When it is necessary to adjust the height of the device, the power supply 31 on the multi-stage telescopic plate 32 is started. The power supply 31 drives the threaded rod 33 to rotate, the threaded rod 33 drives the movable block 34 to move, and the movable block 34 simultaneously drives the movable frame 35 and the support frame 36 to move. The movable frame 35 and the support frame 36 are connected to the inner side of the fixed frame 37 through the pin shaft, so that the angles of the movable frame 35 and the support frame 36 change simultaneously. This facilitates the support frame 36 to drive the fixed frame 37 to rise and fall, and the fixed frame 37 to drive the worktable 2 to rise and fall, thus facilitating the adjustment of the height of the worktable 2. When it is necessary to expand the worktable 2, the motor 41 is started. The motor 41 drives the first bevel gear 42 to rotate, the first bevel gear 42 drives the second bevel gear 43 to rotate, the second bevel gear 43 drives the threaded column 44 to rotate, the threaded column 44 drives the extension plate 45 to move, and the extension plate 45 drives the auxiliary platform 46 to move, thereby achieving the purpose of expanding the table surface of the worktable 2.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A tunnel construction lifting platform with adjustable height, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a work platform (2) on top, the bottom plate (1) is provided with an adjustment mechanism on top, and the work platform (2) is provided with an extension mechanism inside; The adjustment mechanism includes a power supply (31), a multi-stage telescopic plate (32), a threaded rod (33), a movable block (34), a movable frame (35), a support frame (36), and a fixed frame (37). The power supply (31) is located between the base plate (1) and the worktable (2). The multi-stage telescopic plate (32) is fixed to the bottom of the power supply (31) and extends to the inside of the base plate (1). The threaded rod (33) is fixed to one side of the power supply (31). The movable block (34) is threaded onto the surface of the threaded rod (33). The movable frame (35) and the support frame (36) are both movable on the surface of the movable block (34). The bottom of the support frame (36) is movably connected to the inside of the movable frame (35). The fixed frame (37) is movable at the bottom of the movable frame (35) and the top of the support frame (36) respectively via the movable rod. The surface of the fixed frame (37) is fixedly connected to the top of the base plate (1) and the bottom of the worktable (2) respectively. The extension mechanism includes a motor (41), a first bevel gear (42), a second bevel gear (43), a threaded column (44), an extension plate (45), and an auxiliary platform (46). The motor (41) is fixed inside the worktable (2). The first bevel gear (42) is fixed to the motor (41) shaft by a rotating block. The second bevel gear (43) meshes with the surface of the first bevel gear (42). The threaded column (44) is fixed to the other side of the second bevel gear (43). The extension plate (45) is threaded onto the surface of the threaded column (44). The extension plate (45) extends to the outside of the worktable (2). The auxiliary platform (46) is fixed to the other side of the extension plate (45).

2. The tunnel construction lifting platform with flexible height adjustment according to claim 1, characterized in that: The bottom plate (1) has movable wheels (12) connected to both sides of the top via bearings, and the surface of the movable wheels (12) is fitted with anti-slip rings.

3. The tunnel construction lifting platform with flexible height adjustment according to claim 1, characterized in that: The top of the workbench (2) is fixedly connected to a protective plate (5), and a guide rod (6) is movably connected inside the protective plate (5). The other side of the guide rod (6) extends to the outside of the protective plate (5) and is fixedly connected to one side of the auxiliary platform (46).

4. The tunnel construction lifting platform with flexible height adjustment according to claim 1, characterized in that: The threaded rod (33) is fixedly connected to a limiting block (7), which is circular in shape.

5. The tunnel construction lifting platform with flexible height adjustment according to claim 1, characterized in that: The workbench (2) has an open slot (8) inside, and the surfaces of the first bevel gear (42) and the second bevel gear (43) are movably connected to the inner wall of the slot (8).

6. The tunnel construction lifting platform with flexible height adjustment according to claim 1, characterized in that: The workbench (2) has support blocks (9) fixedly connected to both sides of its bottom, and one side of the support block (9) is fixedly connected to one side of the fixed frame (37).

7. The tunnel construction lifting platform with flexible height adjustment according to claim 3, characterized in that: The protective plate (5) is fitted with a safety rope loop (10), which extends into the interior of the protective plate (5).

8. The tunnel construction lifting platform with flexible height adjustment according to claim 3, characterized in that: A toolbox (11) is fixedly connected to one side of the protective plate (5), and a lid is hinged to the top of the toolbox (11).

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