Waterproof layer coating device for building engineering construction

Abstract

The waterproof layer coating device for building engineering construction comprises a bottom plate and a transverse plate, a first sleeve plate is fixedly installed on the surface of the bottom plate, a translation mechanism is arranged in the first sleeve plate, a synchronizing mechanism is arranged in a second sleeve plate, a driving mechanism is fixedly installed on the top face of the bottom plate, and the transverse plate is fixedly installed on the bottom face of the bottom plate. A conveying mechanism is arranged on one side of the transverse plate, and a stabilizing mechanism is arranged at the splicing position of the transverse plate and the bottom plate. The movable coating device is adopted for uniform coating of an indoor waterproof layer, efficient coating operation of the surface of a wall is achieved through reverse translation of two spraying pipes, rotation of the spraying pipes at the internal corner of the wall is achieved through limitation of a toothed rod, it is ensured that the position of the internal corner of the wall corner is coated in place, and the coating efficiency is improved. The problems of poor uniformity and high labor intensity caused by manual coating can be solved, meanwhile, the influence of the waterproof layer on constructors is reduced, and the use convenience of the coating device is improved.

Description

Technical Field

[0001] The invention relates to a waterproof layer coating device for building engineering construction, belonging to the technical field of building engineering construction. Background Art

[0002] Construction engineering construction is a complex and delicate process, which covers multiple links from foundation engineering to main structure, indoor and outdoor decoration and roofing engineering. Construction engineering construction refers to the process of transforming various lines and ideas on design drawings into physical objects through a series of production activities at designated locations. This process includes multiple stages such as foundation engineering construction, main structure construction, indoor and outdoor decoration engineering construction, roofing engineering construction, and mechanical and electrical installation engineering construction.

[0003] The waterproof layer is a vital part of building construction, which is directly related to the service life of the building and the quality of life of the residents. The main purpose of the waterproof layer is to prevent rainwater, groundwater or other water sources from penetrating into the structure of the building, thereby protecting the integrity and stability of the building.

[0004] The main functions of the waterproof layer are: to prevent rainwater from entering the roof, reduce structural damage and indoor moisture caused by rainwater penetration; to prevent groundwater from seeping into walls, basements and underground structures, and protect the safety of the building foundation; to prevent indoor water (such as bathrooms, kitchens, etc.) from seeping into floors and walls, and ensure a dry and comfortable living environment.

[0005] In the construction of building projects, in order to prevent indoor water from seeping into the walls, it is necessary to apply a waterproof layer in advance. The construction requirements of the waterproof layer are to apply it multiple times and spray it evenly, and then conduct a leakage test after solidification. However, the existing application of the waterproof layer is mostly done manually, which not only leads to poor coating uniformity, but also causes incomplete coating and the risk of leakage. It will also greatly increase the tensile strength. Since the coating is carried out in a closed place, it affects the health of the construction workers. When coating indoors, it is easy to have problems with inadequate coating at the corners of the wall and the ground, making it difficult to ensure that the coating process meets the requirements, thereby reducing the coating effect. Summary of the invention

[0006] The present invention provides a waterproof layer coating device for building engineering construction in order to solve the technical problems of low coating efficiency and poor uniformity of a waterproof layer in building engineering construction.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] The present invention provides a waterproof layer coating device for construction engineering, and the waterproof layer coating device for construction engineering comprises:

[0009] Base plate, a first sleeve is fixedly installed on the surface of the base plate, the partition and the second sleeve are fixedly connected to the inside and top of the first sleeve respectively, a translation mechanism is arranged inside the first sleeve, a synchronization mechanism is arranged inside the second sleeve, and a driving mechanism for the movement of the translation mechanism and the synchronization mechanism is fixedly installed on the top surface of the base plate;

[0010] Cross plate, the cross plate is fixedly installed on the bottom surface of the base plate, a conveying mechanism is arranged on one side of the cross plate, and a stabilizing mechanism is arranged at the joint of the cross plate and the base plate.

[0011] In this technical solution, a first sleeve with a U-shaped cross-section is arranged in the middle of the base plate, the partition inside the first sleeve is fixedly connected to the surface of the base plate, a limiting plate is fixedly installed at the top edge of the base plate on one side of the first sleeve, and a moving mechanism is slidably connected inside the limiting plate.

[0012] In this technical solution, the moving mechanism includes a slider, the slider is in sliding fit with the outer wall of the first sleeve and the surface of the base plate respectively, the cross-section of the slider is in a "匚" shape and is in embedded sliding fit with the inside of the limiting plate with an L-shaped cross-section, and the top of the slider is fixedly connected to the second nozzle.

[0013] In this technical solution, the translation mechanism includes a first rack, the first rack is movably sleeved inside the first sleeve, an end plate is fixedly connected to the end of the first rack, a transmission gear is rotatably connected to the top of the end plate, the transmission gear is coaxially fixed to the first nozzle, and a plurality of uniformly distributed nozzles are arranged on the surfaces of the first nozzle and the second nozzle.

[0014] In this technical solution, the synchronization mechanism includes a second rack, the second rack is meshed with the transmission gear, the second rack is movably sleeved inside the second sleeve, the end of the second rack is fixedly connected to a connecting block, the second rack extends to the top surface of the end plate, a fixed block is fixedly connected to the top of the end plate on one side of the second rack, and the fixed block is connected to the connecting block through a spring.

[0015] In this technical solution, the driving mechanism includes a top plate, the top plate is fixedly connected to the top surfaces of the base plate and the first sleeve through brackets respectively, a driving motor is fixedly installed on the top of the top plate, the output end of the driving motor is fixedly connected to a driving gear, the driving gear is located below the top plate and is embedded inside the first sleeve, and the driving gear is meshed with the first rack, an infrared rangefinder is fixedly installed on the side end of the top plate, an electromagnetic coil is fixedly connected to the side wall of the first sleeve, an armature is movably sleeved inside the electromagnetic coil, the armature penetrates through the first side plate and is correspondingly distributed with the first rack, and the electromagnetic coil is electrically connected to the infrared rangefinder and the controller of the driving motor respectively.

[0016] In the present technical solution, a traction mechanism is provided on the surface of the base plate, and the traction mechanism includes guide wheels and a traction rope. There are two guide wheels and they are rotatably connected to the top surface of the base plate. One of the guide wheels is located outside one end of the first set of plates, and the other guide wheel is located inside the other end of the first set of plates, and traction ropes are provided on the surfaces of the two guide wheels.

[0017] In this technical solution, the traction rope is located inside the first set of plates, the traction rope and the first gear rod are respectively located on both sides of the partition, the two ends of the traction rope are respectively fixedly connected to the two ends of the slider, one of the guide wheels is fixedly connected to the output end of the translation motor, and the translation motor is fixedly installed to one side of the top plate.

[0018] In the present technical solution, side plates located on both sides of the bottom plate are fixedly installed on the surface of the horizontal plate, and each of the side plates is fixedly connected to the side end of the bottom plate by multiple bolts. A conveying mechanism is provided on one side of the bottom plate, and the conveying mechanism includes a storage tank, a first pump body and a second pump body. The storage tank is fixedly installed on the top of the horizontal plate, the first pump body is fixedly installed on the surface of the horizontal plate, the first pump body is connected to the first nozzle through a first hose, the second pump body is fixedly installed on the top of the storage tank, and the second pump body is connected to the second nozzle through a second hose.

[0019] In the present technical solution, the stabilizing mechanism includes a long screw, which is threadedly connected to the inside of the base plate. One end of the base plate is rotatably connected to the walking wheel. The long screw passes through the cross plate and is rotatably connected to the inside of the sleeve. The sleeve is fixedly installed to the top surface of the pressure plate, and the bottom of the cross plate is rotatably connected to the universal wheel on all sides.

[0020] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0021] The positive and progressive effects of the present invention are:

[0022] The waterproof layer coating device for construction engineering proposed above adopts a movable coating device to evenly coat the indoor waterproof layer. During spraying, the coating operation on the wall surface is realized by the reverse translation of two nozzles. At the same time, the wall is evenly coated by utilizing the position of the coating device. During coating, the nozzle rotation is realized by utilizing the limitation of the gear rod, so that the nozzle can rotate and swing when passing through the inner corner of the wall, ensuring that the inner corner of the wall is coated in place, and multiple rapid coatings can be realized, which can improve construction efficiency. When coating the waterproof layer indoors, it can solve the problems of poor uniformity and high labor intensity caused by manual coating, and at the same time reduce the impact of the waterproof layer on construction personnel, thereby improving the ease of use of the coating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the end plate of the present invention.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the top plate of the present invention.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the armature of the present invention.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressing plate of the present invention.

[0028] Figure 6 It is a front view structural schematic diagram of the present invention.

[0029] Figure 7 It is a side view structural schematic diagram of the present invention.

[0030] Figure 8 It is a schematic diagram of the top view structure of the present invention.

[0031] Description of Reference Numerals

[0032] 1. Bottom plate; 2. First set of plates; 3. Partition plate; 4. Second set of plates; 5. First gear rod; 6. End plate; 7. Transmission gear; 8. First nozzle; 9. Bracket; 10. Top plate; 11. Drive motor; 12. Drive gear; 13. Limit plate; 14. Slider; 15. Second nozzle; 16. Nozzle; 17. Guide wheel; 18. Traction rope; 19. Electromagnetic coil; 20. Armature; 21. Translation motor; 22. Second gear rod; 23. Fixed block; 24. Spring; 25. Connecting block; 26. Travel wheel; 27. Cross plate; 28. Side plate; 29. ​​Bolt; 30. Storage tank; 31. First pump body; 32. First hose; 33. Second pump body; 34. Second hose; 35. Long screw; 36. Casing; 37. Press plate; 38. Universal wheel; 39. Infrared rangefinder. DETAILED DESCRIPTION

[0033] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0034] like Figure 1-8 As shown, the waterproof layer coating device for construction engineering construction includes:

[0035] A bottom plate 1, a first set of plates 2 is fixedly mounted on the surface of the bottom plate 1, the interior and top of the first set of plates 2 are fixedly connected to the partition plate 3 and the second set of plates 4 respectively, a translation mechanism is arranged inside the first set of plates 2, a synchronization mechanism is arranged inside the second set of plates 4, and a driving mechanism for moving the translation mechanism and the synchronization mechanism is fixedly mounted on the top surface of the bottom plate 1;

[0036] A horizontal plate 27, the horizontal plate 27 is fixedly installed on the bottom surface of the bottom plate 1, a conveying mechanism is provided on one side of the horizontal plate 27, and a stabilizing mechanism is provided at the joint of the horizontal plate 27 and the bottom plate 1.

[0037] A first sleeve plate 2 with a U-shaped cross-section is provided in the middle of the bottom plate 1. A partition plate 3 inside the first sleeve plate 2 is fixedly connected to the surface of the bottom plate 1. A limiting plate 13 is fixedly installed at the top edge of the bottom plate 1 on one side of the first sleeve plate 2, and a moving mechanism is slidably connected inside the limiting plate 13; the moving mechanism includes a slider 14, the slider 14 is in sliding fit with the outer wall of the first sleeve plate 2 and the surface of the bottom plate 1 respectively. The cross-section of the slider 14 is in a "C" shape and is in sliding fit with the inside of the limiting plate 13 with an L-shaped cross-section, and the top of the slider 14 is fixedly connected to the second spray pipe 15.

[0038] In this technical solution, by setting the partition plate 3, the first sleeve plate 2 can be divided into two cavities, so that the movement of the first toothed rod 5 and the traction rope 18 is not affected. At the same time, the cooperation of the first sleeve plate 2 and the limiting plate 13 realizes the limitation of the slider 14, and the slider 14 is pulled by the traction rope 18 to move, thereby driving the second spray pipe 15 to move synchronously.

[0039] The translation mechanism includes a first toothed rod 5, the first toothed rod 5 is movably sleeved inside the first sleeve plate 2, an end plate 6 is fixedly connected to the end of the first toothed rod 5, a transmission gear 7 is rotatably connected to the top of the end plate 6, the transmission gear 7 is coaxially fixed to the first spray pipe 8, and a plurality of uniformly distributed spray heads 16 are provided on the surfaces of the first spray pipe 8 and the second spray pipe 15; the synchronization mechanism includes a second toothed rod 22, the second toothed rod 22 is meshed with the transmission gear 7, the second toothed rod 22 is movably sleeved inside the second sleeve plate 4, the end of the second toothed rod 22 is fixedly connected to a connecting block 25, the second toothed rod 22 extends to the top surface of the end plate 6, a fixed block 23 is fixedly connected to the top of the end plate 6 on one side of the second toothed rod 22, and the fixed block 23 is connected to the connecting block 25 through a spring 24.

[0040] In this technical solution, when the first toothed rod 5 moves inside the first sleeve plate 2, it can drive the end plate 6 to move synchronously. When the end plate 6 pushes the transmission gear 7 and the first spray pipe 8 to move, the end plate 6 drives the fixed block 23 to move, and drives the connecting block 25 and the second toothed rod 22 to move synchronously through the spring 24. At this time, the first end pipe is in a prohibited state. When moving to the inner corner position of the wall, the armature 20 is used to抵住 the second toothed rod 22. At this time, when the first toothed rod 5 continues to move, the spring 24 is continuously compressed, and the transmission gear 7 rolls on the second toothed rod 22, thereby driving the first spray pipe 8 to rotate. At this time, the first spray pipe 8 drives the spray heads 16 to rotate at the inner corner position of the wall to achieve uniform spraying, ensuring that the spraying at the inner corner position is in place, and improving the construction efficiency and quality.

[0041] The driving mechanism includes a top plate 10, which is fixedly connected to the bottom plate 1 and the top surface of the first set of plates 2 through a bracket 9, a driving motor 11 is fixedly installed on the top of the top plate 10, and the output end of the driving motor 11 is fixedly connected to a driving gear 12, the driving gear 12 is located below the top plate 10 and is embedded in the first set of plates 2, and the driving gear 12 is meshingly connected to the first gear rod 5, an infrared rangefinder 39 is fixedly installed on the side end of the top plate 10, the side wall of the first set of plates 2 is fixedly connected to the electromagnetic coil 19, the inside of the electromagnetic coil 19 is movably connected to the armature 20, the armature 20 passes through the first side plate 28 and is distributed corresponding to the first gear rod 5, and the electromagnetic coil 19 is electrically connected to the infrared rangefinder 39 and the controller of the driving motor 11, respectively.

[0042] In the present technical scheme, the base plate 1 is placed on one side of the wall before coating, and the infrared rangefinder 39 measures the distance to the wall. After being fixed, the drive motor 11 is started, which drives the drive gear 12 to rotate, so that it drives the first gear rod 5 to move. The movement amount of the first gear rod 5 is determined by the number of rotations of the drive gear 12. When the first gear rod 5 drives the end plate 6 to move close to the inner corner of the wall, the movement amount of the first gear rod 5 driven by the drive motor 11 is close to the distance measured by the infrared rangefinder 39. At this time, the electromagnetic coil 19 is controlled to be energized. At this time, the magnetic field generated by the electromagnetic coil 19 drives the armature 20 to press against the first gear rod 5, thereby realizing the locking of the first gear rod 5. At this time, the first nozzle 8 just reaches the inner corner of the wall and rotates slowly to achieve uniform spraying.

[0043] A traction mechanism is provided on the surface of the base plate 1, and the traction mechanism includes a guide wheel 17 and a traction rope 18. There are two guide wheels 17, which are rotatably connected to the top surface of the base plate 1, one of the guide wheels 17 is located outside one end of the first set of plates 2, and the other guide wheel 17 is located inside the other end of the first set of plates 2, and a traction rope 18 is provided on the surface of the two guide wheels 17; the traction rope 18 is located inside the first set of plates 2, and the traction rope 18 and the first gear rod 5 are respectively located on both sides of the partition 3, and the two ends of the traction rope 18 are respectively fixedly connected to the two ends of the slider 14, and one of the guide wheels 17 is fixedly connected to the output end of the translation motor 21, and the translation motor 21 is fixedly installed to one side of the top plate 10.

[0044] In the present technical solution, when the driving motor 11 is working, the translation motor 21 drives the guide wheel 17 to rotate, and the traction rope 18 in a tensioned state between the guide wheels 17 pulls the slider 14 to move inside the limit plate 13, thereby driving the second nozzle 15 to move in the opposite direction of the first nozzle 8 to achieve uniform coating of the wall surface. At this time, the traction rope 18 moves inside the first set of plates 2 on one side of the partition 3, and the traction rope 18 is used to pull the slider 14.

[0045] The surface of the transverse plate 27 is fixedly mounted with side plates 28 located on both sides of the bottom plate 1, and each of the side plates 28 is fixedly connected to the side end of the bottom plate 1 by a plurality of bolts 29. A conveying mechanism is provided on one side of the bottom plate 1, and the conveying mechanism includes a storage tank 30, a first pump body 31 and a second pump body 33. The storage tank 30 is fixedly mounted to the top of the transverse plate 27, the first pump body 31 is fixedly mounted to the surface of the transverse plate 27, the first pump body 31 is connected to the first nozzle 8 through a first hose 32, the second pump body 33 is fixedly mounted to the top of the storage tank 30, and the second pump body 33 is connected to the second nozzle 15 through a second hose 34.

[0046] In the present technical solution, the first pump body 31 and the second pump body 33 are started, and the waterproof coating in the storage tank 30 is transported to the first nozzle 8 and the second nozzle 15 by using the first hose 32 and the second hose 34, and sprayed out through the nozzle 16 to achieve uniform coating. The horizontal plate 27 is installed at the bottom of the base plate 1 through the cooperation of the side plate 28 and the bolts 29, and at the same time supports one side of the base plate 1.

[0047] The stabilizing mechanism includes a long screw 35, which is threadedly connected to the bottom plate 1. One end of the bottom plate 1 is rotatably connected to the walking wheel 26. The long screw 35 passes through the cross plate 27 and is rotatably connected to the inside of the sleeve 36. The sleeve 36 is fixedly mounted to the top surface of the pressure plate 37. The bottom of the cross plate 27 is rotatably connected to the universal wheel 38 on all sides.

[0048] In this technical solution, the movement of the spraying device is achieved through the cooperation of the walking wheel 26 and the universal wheel 38. When the base plate 1 is moved close to the wall, the long screw 35 is rotated to drive the pressure plate 37 to contact the ground, thereby achieving stable placement of the base plate 1 and facilitating subsequent stable coating operations.

[0049] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A waterproof coating device for construction engineering, characterized in that: The waterproof layer coating device for building engineering construction includes: A bottom plate (1), on the surface of the bottom plate (1), a first sleeve plate (2) is fixedly installed. Inside and at the top of the first sleeve plate (2), a partition plate (3) and a second sleeve plate (4) are fixedly connected respectively. A translation mechanism is arranged inside the first sleeve plate (2), a synchronization mechanism is arranged inside the second sleeve plate (4), and a driving mechanism for the movement of the translation mechanism and the synchronization mechanism is fixedly installed on the top surface of the bottom plate (1); A cross plate (27), the cross plate (27) is fixedly installed on the bottom surface of the bottom plate (1). A conveying mechanism is arranged on one side of the cross plate (27), and a stabilizing mechanism is arranged at the joint of the cross plate (27) and the bottom plate (1).

2. The waterproof coating device for construction engineering as claimed in claim 1, characterized in that: A first sleeve plate (2) with a U-shaped cross-section is arranged in the middle of the bottom plate (1). The partition plate (3) inside the first sleeve plate (2) is fixedly connected to the surface of the bottom plate (1). A limiting plate (13) is fixedly installed at the top edge of the bottom plate (1) on one side of the first sleeve plate (2), and a moving mechanism is slidably connected inside the limiting plate (13).

3. The waterproof coating device for construction engineering as claimed in claim 2, characterized in that: The moving mechanism includes a slider (14). The slider (14) is in sliding fit with the outer wall of the first sleeve plate (2) and the surface of the bottom plate (1). The cross-section of the slider (14) is in a "C" shape and is in sliding fit inside the limiting plate (13) with an L-shaped cross-section, and the top of the slider (14) is fixedly connected to a second spray pipe (15).

4. The waterproof coating device for construction engineering as claimed in claim 1, characterized in that: The translation mechanism includes a first rack (5). The first rack (5) is movably sleeved inside the first sleeve plate (2). The end of the first rack (5) is fixedly connected to an end plate (6). A transmission gear (7) is rotatably connected to the top of the end plate (6). The transmission gear (7) is coaxially and fixedly connected to a first spray pipe (8), and a plurality of uniformly distributed spray heads (16) are arranged on the surfaces of the first spray pipe (8) and the second spray pipe (15).

5. The waterproof coating device for construction engineering as claimed in claim 1, characterized in that: The synchronization mechanism includes a second rack (22). The second rack (22) is meshed with the transmission gear (7). The second rack (22) is movably sleeved inside the second sleeve plate (4). The end of the second rack (22) is fixedly connected to a connecting block (25). The second rack (22) extends to the top surface of the end plate (6). A fixed block (23) is fixedly connected to the top of the end plate (6) on one side of the second rack (22), and the fixed block (23) is connected to the connecting block (25) through a spring (24).

6. The waterproof coating device for construction engineering as claimed in claim 1, characterized in that: The driving mechanism comprises a top plate (10), wherein the top plate (10) is fixedly connected to the bottom plate (1) and the top surface of the first set plate (2) respectively through a bracket (9), a driving motor (11) is fixedly installed on the top of the top plate (10), an output end of the driving motor (11) is fixedly connected to a driving gear (12), the driving gear (12) is located below the top plate (10) and is embedded in the first set plate (2), and the driving gear (12) is meshingly connected to the first gear rod (5), an infrared rangefinder (39) is fixedly installed on the side end of the top plate (10), a side wall of the first set plate (2) is fixedly connected to the electromagnetic coil (19), the inside of the electromagnetic coil (19) is movably connected to an armature (20), the armature (20) passes through the first side plate (28) and is distributed corresponding to the first gear rod (5), and the electromagnetic coil (19) is electrically connected to the infrared rangefinder (39) and the controller of the driving motor (11) respectively.

7. The waterproof coating device for construction engineering as claimed in claim 1, characterized in that: A traction mechanism is provided on the surface of the bottom plate (1), and the traction mechanism comprises a guide wheel (17) and a traction rope (18). There are two guide wheels (17) and they are rotatably connected to the top surface of the bottom plate (1). One of the guide wheels (17) is located outside one end of the first set of plates (2), and the other guide wheel (17) is located inside the other end of the first set of plates (2). The surfaces of the two guide wheels (17) are both provided with traction ropes (18).

8. The waterproof coating device for construction engineering as claimed in claim 7, characterized in that: The traction rope (18) is located inside the first set of plates (2), the traction rope (18) and the first gear rod (5) are respectively located on both sides of the partition (3), the two ends of the traction rope (18) are respectively fixedly connected to the two ends of the slider (14), one of the guide wheels (17) is fixedly connected to the output end of the translation motor (21), and the translation motor (21) is fixedly installed on one side of the top plate (10).

9. The waterproof coating device for construction engineering as claimed in claim 1, characterized in that: The surface of the transverse plate (27) is fixedly mounted with side plates (28) located on both sides of the bottom plate (1), and each of the side plates (28) is fixedly connected to the side end of the bottom plate (1) by a plurality of bolts (29). A conveying mechanism is provided on one side of the bottom plate (1), and the conveying mechanism comprises a storage tank (30), a first pump body (31) and a second pump body (33). The storage tank (30) is fixedly mounted to the top of the transverse plate (27), the first pump body (31) is fixedly mounted to the surface of the transverse plate (27), the first pump body (31) is connected to the first nozzle (8) via a first hose (32), the second pump body (33) is fixedly mounted to the top of the storage tank (30), and the second pump body (33) is connected to the second nozzle (15) via a second hose (34).

10. The waterproof coating device for construction engineering as claimed in claim 1, characterized in that: The stabilizing mechanism comprises a long screw (35), wherein the long screw (35) is connected to the inner thread of the base plate (1), one end of the base plate (1) is rotatably connected to the walking wheel (26), the long screw (35) passes through the transverse plate (27) and is rotatably connected to the inner part of the sleeve (36), the sleeve (36) is fixedly mounted to the top surface of the pressure plate (37), and the bottom of the transverse plate (27) is rotatably connected to the universal wheel (38) on all sides.

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