Stable lifting device for constructional engineering

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a stable lifting device for constructional engineering. Lifting assemblies are connected between four moving wheels and a base, a fixing pipe is fixedly connected to the interior of the top wall of the base, a supporting cylinder is fixedly connected to the lower end of the fixing pipe, and a motor I is fixedly connected to the outer wall of the top face of the supporting cylinder; the threaded rod I is fixedly connected to an output shaft of the motor I, the threaded pipe is fixedly connected to the top face of the bottom plate, the threaded pipe is connected to the threaded rod I, the bottom plate is slidably connected into the supporting cylinder, and the guiding assembly plays a role in guiding lifting of the top face platform and plays a role in auxiliary supporting when the center of the top face platform deviates. The lifting assembly controls the four moving wheels to ascend and descend so as to eliminate center-of-gravity shift, the balance assembly achieves the purpose of keeping balance through movement of a balancing weight, the problem of center-of-gravity shift caused when a worker moves on the top surface platform is solved, the structure is stable, use is convenient, and working safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and particularly relates to a stable lifting device for construction engineering. Background Art

[0002] During the construction process, a lifting platform is often used. When in use, personnel stand on the top platform of the lifting platform, and the top platform is controlled to rise to the required height.

[0003] Most of the existing lifting platforms use cross arms controlled by a hydraulic system to achieve lifting, and are equipped with moving wheels for movement.

[0004] However, after the top platform rises, due to the change of the center, the overall stability is poor, and the top platform shakes. Especially when the staff moves to one side of the top platform, it will cause the center of gravity of the equipment to deviate, resulting in unstable support of the moving wheels at the bottom of the equipment, and it is easy to cause accidents such as equipment movement. In severe cases, there is even a risk of overall overturning. Content of the Utility Model

[0005] The purpose of the utility model is to provide a stable lifting device for construction engineering, which has high overall stability, solves the problem of center of gravity deviation caused by the movement of staff on the top platform, and ensures work safety.

[0006] A stable lifting device for construction engineering of the utility model comprises a lifting platform. The lifting platform includes a base, cross arms and a top platform. The cross arms are connected between the base and the top platform. Four moving wheels are connected to the base, and lifting components are connected between the four moving wheels and the base. The lifting component includes a fixed pipe, a motor I, a support cylinder, a bottom plate, a threaded pipe and a screw I. The fixed pipe is fixedly connected to the inner part of the top wall of the base. The support cylinder is fixedly connected to the lower end of the fixed pipe. The top surface of the support cylinder is closed and the bottom surface is open. The support cylinder is vertically arranged, and the cross-sectional shape of the support cylinder is rectangular. The motor I is fixedly connected to the outer wall of the top surface of the support cylinder. The output shaft of the motor I penetrates through the top surface of the support cylinder. The screw I is fixedly connected to the output shaft of the motor I. The screw I is arranged inside the support cylinder, and the screw I is coaxial with the support cylinder. The threaded pipe is fixedly connected to the top surface of the bottom plate. The moving wheel is fixedly connected to the bottom surface of the bottom plate. The cross-sectional shape of the bottom plate is rectangular. The threaded pipe is connected to the screw I, and the bottom plate is slidably connected inside the support cylinder.

[0007] Furthermore, a balance component is arranged at the center of the bottom of the base. The balance component includes a fixed frame, a motor II, a screw II, a threaded sleeve and a counterweight. The fixed frame is fixedly connected to the inside of the base. The fixed frame is a rectangular frame. The motor II is fixedly connected to the outer wall of the fixed frame. The output shaft of the motor II penetrates through the outer wall of the fixed frame. The screw II is fixedly connected to the output shaft of the motor II. The screw II is horizontally arranged. The threaded sleeve is connected to the screw II. The counterweight is fixed to the outer wall of the threaded sleeve. The threaded sleeve and the counterweight are slidably connected inside the fixed frame.

[0008] Further, a slider is fixedly connected to the outer wall of the counterweight block, and a positioning plate is fixedly connected to the inner bottom surface of the fixed frame. The positioning plate is arranged along the length direction of the screw rod II, a chute is arranged on the top surface of the positioning plate, the chute is arranged along the length direction of the positioning plate, and the slider is slidably connected in the chute.

[0009] Further, a rotating seat is fixedly connected to the inner side wall of the fixed frame. The screw rod II includes a screw rod part and a rotating shaft part. The screw rod part is fixedly connected to the output shaft of the motor II, and the rotating shaft part is rotatably connected to the rotating seat.

[0010] Further, four guiding components are connected between the base and the top surface platform. The four guiding components are respectively arranged at the four corners of the bottom surface of the top surface platform. The guiding component includes a guiding tube and a guiding column. The guiding tube is fixedly connected to the top surface of the base, the guiding column is fixedly connected to the bottom surface of the top surface platform, and the guiding column is slidably connected inside the guiding tube.

[0011] Further, a guiding plate is fixedly connected to the outer wall of the screw rod I. The cross-sectional shape of the guiding plate is rectangular, and the guiding plate is slidably connected inside the support cylinder.

[0012] Further, a guardrail is fixedly connected to the top surface of the top surface platform.

[0013] Further, a pressure sensor is connected between the bottom plate and the moving wheel.

[0014] The beneficial effects of the present utility model are as follows: Through the settings of the guiding component, the lifting component and the balancing component, the present utility model improves the use stability. The guiding component provides a guiding effect for the lifting of the top surface platform and plays an auxiliary supporting role when the center of the top surface platform deviates. The lifting component controls the lifting of the four moving wheels to eliminate the center of gravity deviation of the present utility model. The balancing component realizes the purpose of maintaining balance through the movement of the counterweight block. The present utility model solves the problem of the center of gravity deviation caused by the movement of the staff on the top surface platform of the existing lifting platform through the settings of the guiding component, the lifting component and the balancing component. The structure is stable, the use is convenient, and the work safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is the Figure 1 A-A cross-sectional view of the present utility model;

[0017] Figure 3 is the Figure 1 B-B cross-sectional view of the present utility model;

[0018] Figure 4For the present utility model Figure 2 Cross-sectional view along C-C in the present utility model;

[0019] Figure 5 For the present utility model Figure 4 Cross-sectional view along D-D in the present utility model;

[0020] Figure 6 It is a partial structural schematic diagram of the lifting assembly when the moving wheels of the present utility model are retracted into the support cylinder.

[0021] In the figure: 1. Lifting platform; 2. Base; 3. Cross arm; 4. Top surface platform; 5. Guardrail; 6. Moving wheel; 7. Guide assembly; 8. Guide tube; 9. Guide post; 10. Lifting assembly; 11. Fixed tube; 12. Motor I; 13. Support cylinder; 14. Pressure sensor; 15. Bottom plate; 16. Threaded tube; 17. Guide plate; 18. Screw I; 19. Balance assembly; 20. Fixed frame; 21. Rotating seat; 22. Motor II; 23. Screw II; 2301. Screw part; 2302. Rotating shaft part; 24. Threaded sleeve; 25. Counterweight; 26. Slide block; 27. Positioning plate; 2701. Slide groove. Specific embodiments

[0022] As Figures 1-6 shown, a stable lifting device for construction engineering of the present utility model includes a lifting platform 1. The lifting platform 1 includes a base 2, a cross arm 3 and a top surface platform 4. The cross arm 3 is connected between the base 2 and the top surface platform 4. Four moving wheels 6 are connected to the base 2. Lifting assemblies 10 are connected between the four moving wheels 6 and the base 2. The lifting assembly 10 includes a fixed tube 11, a motor I 12, a support cylinder 13, a bottom plate 15, a threaded tube 16 and a screw I 18. The fixed tube 11 is fixedly connected to the inner part of the top wall of the base 2. The support cylinder 13 is fixedly connected to the lower end of the fixed tube 11. The top surface of the support cylinder 13 is closed and the bottom surface is open. The support cylinder 13 is vertically arranged. The cross-sectional shape of the support cylinder 13 is rectangular. The motor I 12 is fixedly connected to the outer wall of the top surface of the support cylinder 13. The output shaft of the motor I 12 penetrates through the top surface of the support cylinder 13. The screw I 18 is fixedly connected to the output shaft of the motor I 12. The screw I 18 is arranged inside the support cylinder 13. The screw I 18 is coaxial with the support cylinder 13. The threaded tube 16 is fixedly connected to the top surface of the bottom plate 15. The moving wheel 6 is fixedly connected to the bottom surface of the bottom plate 15. The cross-sectional shape of the bottom plate 15 is rectangular. The threaded tube 16 is connected to the screw I 18. The bottom plate 15 is slidably connected inside the support cylinder 13.

[0023] When the present utility model is in use, as the top surface platform 4 rises, the overall center of gravity of the device moves upward. When an operator stands on the top surface platform 4, if the standing position deviates to one side, it is very easy to cause one side to skew, resulting in poor overall stability of the device. In the present utility model, the rotation of the motor I 12 drives the rotation of the screw I 18. Since the bottom plate 15 is slidably connected in the support cylinder 13, the rotation of the screw I 18 drives the lifting of the bottom plate 15 and the moving wheels 6, so that the lifting assembly 10 can control the stable connection of the moving wheels 6 to the ground. When the center of gravity of the device is skewed, the device is kept balanced and stable by individually controlling the four lifting assemblies 10. A guide plate 17 is fixedly connected to the outer wall of the screw I 18. The cross-sectional shape of the guide plate 17 is rectangular, and the guide plate 17 is slidably connected inside the support cylinder 13.

[0024] A pressure sensor 14 can also be connected between the bottom plate 15 and the moving wheels 6. When the value of a certain pressure sensor 14 becomes larger, it indicates that the center of the device offsets in this direction. At this time, the moving wheels 6 here can be extended more by the lifting assembly 10, so as to achieve the adjustment purpose and help the device maintain stability.

[0025] In addition, as Figure 6 shown, the four moving wheels 6 can also be completely retracted into the support cylinder 13 by the lifting assembly 10, so that the lower end of the support cylinder 13 directly sits on the ground, making the overall device more stable and preventing accidental sliding during use.

[0026] The setting of the guide plate 17 further ensures the sliding stability of the bottom plate 15 in the support cylinder 13.

[0027] A balance assembly 19 is provided at the center of the bottom of the base 2. The balance assembly 19 includes a fixed frame 20, a motor II 22, a screw II 23, a threaded sleeve 24 and a counterweight 25. The fixed frame 20 is fixedly connected inside the base 2. The fixed frame 20 is a rectangular frame. The motor II 22 is fixedly connected to the outer wall of the fixed frame 20. The output shaft of the motor II 22 penetrates the outer wall of the fixed frame 20. The screw II 23 is fixedly connected to the output shaft of the motor II 22. The screw II 23 is horizontally arranged. The threaded sleeve 24 is connected to the screw II 23. The counterweight 25 is fixed to the outer wall of the threaded sleeve 24. The threaded sleeve 24 and the counterweight 25 are slidably connected inside the fixed frame 20. A slider 26 is fixedly connected to the outer wall of the counterweight 25. A positioning plate 27 is fixedly connected to the inner bottom surface of the fixed frame 20. The positioning plate 27 is arranged along the length direction of the screw II 23. A chute 2701 is provided on the top surface of the positioning plate 27. The chute 2701 is arranged along the length direction of the positioning plate 27. The slider 26 is slidably connected in the chute 2701.

[0028] The motor II 22 drives the screw rod II 23 to rotate. Since the slider 26 is slidably connected in the chute 2701, when the screw rod II 23 rotates, the threaded sleeve 24 and the counterweight 25 will slide left and right in the fixed frame 20. The balance assembly 19 is also provided to ensure the overall balance of the device. When the staff stands on one side, the motor II 22 drives the threaded sleeve 24 and the counterweight 25 to slide to the opposite side of the movement of the staff, so as to achieve the purpose of maintaining balance.

[0029] Due to the management of weight and torque, the movement of the counterweight 25 cannot completely eliminate the center deviation caused by the movement of the staff. Therefore, pay attention to the combined use of the balance assembly 19 and the lifting assembly 10 during use.

[0030] A rotating seat 21 is fixedly connected to the inner side wall of the fixed frame 20. The screw rod II 23 includes a screw rod portion 2301 and a rotating shaft portion 2302. The screw rod portion 2301 is fixedly connected to the output shaft of the motor II 22, and the rotating shaft portion 2302 is rotatably connected to the rotating seat 21.

[0031] The setting of the rotating seat 21 ensures the stability of the screw rod II 23. In actual use, a bearing can be provided between the rotating seat 21 and the screw rod II 23. The design of the bearing and its related components are all conventional technical means often used by those skilled in the art, and will not be described in detail here.

[0032] Four guiding components 7 are connected between the base 2 and the top surface platform 4. The four guiding components 7 are respectively arranged at the four corners of the bottom surface of the top surface platform 4. The guiding component 7 includes a guiding tube 8 and a guiding column 9. The guiding tube 8 is fixedly connected to the top surface of the base 2, and the guiding column 9 is fixedly connected to the bottom surface of the top surface platform 4. The guiding column 9 is slidably connected inside the guiding tube 8.

[0033] The setting of the guiding component 7 provides a guiding function for the lifting of the top surface platform 4 and plays an auxiliary supporting role when the center of the top surface platform 4 deviates.

[0034] A guardrail 5 is fixedly connected to the top surface of the top surface platform 4. The guardrail 5 provides protection for the staff on the top surface platform 4 and further improves the safety of use of the present utility model.

Claims

1. A stable lifting device for construction engineering, comprising a lifting platform (1), the lifting platform (1) comprising a base (2), a cross arm (3) and a top platform (4), the cross arm (3) being connected between the base (2) and the top platform (4), characterized in that: Four moving wheels (6) are connected to the base (2), and a lifting assembly (10) is connected between the four moving wheels (6) and the base (2). The lifting assembly (10) includes a fixed tube (11), a motor I (12), a support tube (13), a bottom plate (15), a threaded tube (16) and a screw rod I (18). The fixed tube (11) is fixedly connected to the inside of the top wall of the base (2), and the support tube (13) is fixedly connected to the lower end of the fixed tube (11). The top surface of the support tube (13) closes the bottom surface opening. The support tube (13) is vertically arranged. The cross-sectional shape of the support tube (13) is rectangular. The motor I (12 ) is fixedly connected to the outer wall of the top surface of the support tube (13), the output shaft of the motor I (12) passes through the top surface of the support tube (13), the screw rod I (18) is fixedly connected to the output shaft of the motor I (12), the screw rod I (18) is arranged inside the support tube (13), the screw rod I (18) and the support tube (13) are coaxial, the threaded tube (16) is fixedly connected to the top surface of the bottom plate (15), the moving wheel (6) is fixedly connected to the bottom surface of the bottom plate (15), the cross-section of the bottom plate (15) is rectangular, the threaded tube (16) is connected to the screw rod I (18), and the bottom plate (15) is slidably connected in the support tube (13).

2. A stable lifting device for construction engineering according to claim 1, characterized in that: A balancing assembly (19) is provided at the bottom center of the base (2). The balancing assembly (19) includes a fixed frame (20), a motor II (22), a screw rod II (23), a threaded sleeve (24) and a counterweight (25). The fixed frame (20) is fixedly connected to the inside of the base (2). The fixed frame (20) is a rectangular frame. The motor II (22) is fixedly connected to the outer wall of the fixed frame (20). The output shaft of the motor II (22) passes through the outer wall of the fixed frame (20). The screw rod II (23) is fixedly connected to the output shaft of the motor II (22). The screw rod II (23) is horizontally arranged. The threaded sleeve (24) is connected to the screw rod II (23). The counterweight (25) is fixed to the outer wall of the threaded sleeve (24). The threaded sleeve (24) and the counterweight (25) are slidably connected in the fixed frame (20).

3. A stable lifting device for construction engineering according to claim 2, characterized in that: A slider (26) is fixedly connected to the outer wall of the counterweight block (25), and a positioning plate (27) is fixedly connected to the inner bottom surface of the fixed frame (20). The positioning plate (27) is arranged along the length direction of the screw rod II (23). A slide groove (2701) is arranged on the top surface of the positioning plate (27). The slide groove (2701) is arranged along the length direction of the positioning plate (27), and the slider (26) is slidably connected in the slide groove (2701).

4. A stable lifting device for construction engineering according to claim 3, characterized in that: A rotating seat (21) is fixedly connected to the inner wall of the fixed frame (20), and the screw rod II (23) comprises a screw rod portion (2301) and a rotating shaft portion (2302). The screw rod portion (2301) is fixedly connected to the output shaft of the motor II (22), and the rotating shaft portion (2302) is rotatably connected to the rotating seat (21).

5. A stable lifting device for construction engineering according to claim 4, characterized in that: Four guide assemblies (7) are connected between the base (2) and the top platform (4). The four guide assemblies (7) are arranged at four corners of the bottom surface of the top platform (4). The guide assemblies (7) include guide tubes (8) and guide columns (9). The guide tubes (8) are fixedly connected to the top surface of the base (2), the guide columns (9) are fixedly connected to the bottom surface of the top platform (4), and the guide columns (9) are slidably connected inside the guide tubes (8).

6. A stable lifting device for construction engineering according to claim 1, characterized in that: A guide plate (17) is fixedly connected to the outer wall of the screw rod I (18). The cross-section of the guide plate (17) is rectangular. The guide plate (17) is slidably connected to the inside of the support tube (13).

7. A stable lifting device for construction engineering according to any one of claims 1 to 6, characterized in that: A guardrail (5) is fixedly connected to the top surface of the top surface platform (4).

8. A stable lifting device for construction engineering according to any one of claims 1 to 6, characterized in that: A pressure sensor (14) is connected between the bottom plate (15) and the moving wheel (6).

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