Rotatable lifting platform

Abstract

The utility model relates to a rotatable lifting platform which comprises a lifting machine moving base, a steering structure is installed in the lifting machine moving base, the steering structure and the lifting machine moving base are integrated, the steering structure extends to the position above the lifting machine moving base, and a lifting structure which is driven by a hydraulic cylinder to ascend and descend is arranged on the steering structure. An auxiliary structure capable of improving steering stability is arranged in the steering structure, the steering structure comprises a steering base installed in the elevator moving base, a rotating body is arranged at the upper end of the steering base, a rotating bearing is arranged on the upper end face of the rotating body, and a rotating platform is movably installed on the outer surface of the rotating body. The rotary lifting platform solves the problems that an existing rotary lifting platform cannot effectively provide effective guarantee for safety of constructors, and due to the fact that a steering structure of the existing rotary lifting platform is designed at the upper end of a lifting frame, a rotary disc and the lifting frame are damaged due to gravity. And the problem that an existing rotatable lifting platform is not compact in overall structure is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a rotatable lifting platform. Background Art

[0002] Lifting platforms are mainly used in equipment installation, home decoration, equipment maintenance and other aspects, and have a wide range of uses. Generally, lifting platforms are driven by a driving structure to drive the lifting rod to move up and down, and then drive the lifting platform to move up and down. However, due to changes in construction angles and construction surface positions, it is necessary to realize the steering function, so a rotatable lifting platform is produced. However, there are certain problems with the rotatable lifting platform that is trapped in a tight place. When the construction workers move to one side, the center of the lifting platform is unstable due to the influence of gravity, which may cause rollover problems.

[0003] In order to improve the safety of construction workers, Chinese patent CN218841637U, a rotatable mobile lifting work platform points out that by providing a rotatable turntable in the workbench, guardrails are installed on the workbench and the turntable surface. People who need to move can stand on the turntable surface to rotate and change their position, while people who do not need to move can stand on the surface of the workbench. The separate movements do not affect each other, which improves safety and is convenient for workers to use. Although this patent can improve safety to a certain extent, there are still certain technical problems. The turntable in this patent is installed on the lifting frame, that is, the lifting frame bears more force. When the construction workers are working on one side, the turntable tilts toward the gravity end. At this time, although the turntable is connected to the lifting frame, the gravity on one side can easily cause breakage or damage between the turntable and the lifting frame. Therefore, the safety of the construction workers cannot be effectively guaranteed.

[0004] Therefore, in order to improve the safety of the lifting platform and to achieve an integrated design of the steering structure and the lifting platform so that the overall structure is more compact, a rotatable lifting platform is proposed. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a rotatable lifting platform, which solves the problems that the existing rotatable lifting platform cannot effectively provide effective protection for the safety of construction workers, and the steering structure of the existing rotatable lifting platform is designed at the upper end of the lifting frame, causing the turntable and the lifting frame to be damaged due to gravity, and the overall structure of the existing rotatable lifting platform is not compact.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A rotatable lifting platform, including a lifting machine moving base, a steering structure is installed inside the lifting machine moving base, the steering structure is integrated with the lifting machine moving base, the steering structure extends above the lifting machine moving base, a lifting structure driven by a hydraulic cylinder to lift is provided on the steering structure, and an auxiliary structure capable of improving the steering stability is provided inside the steering structure. The steering structure includes a steering base installed inside the lifting machine moving base, a rotating body is provided at the upper end of the steering base, a rotating bearing is provided on the upper end surface of the rotating body, a rotating platform is movably installed on the outer surface of the rotating body, and an auxiliary structure is provided inside the rotating platform, the auxiliary structure contacts the outer surface of the rotating bearing, the auxiliary structure includes a mounting plate installed inside the rotating body, convex blocks are symmetrically provided on the inner side surface of the mounting plate facing inwards, a pin shaft is inserted into the convex blocks, a movable column is movably installed on the surface of the pin shaft, and the movable column contacts the outer surface of the rotating bearing. A driving structure is also provided at the upper end of the steering base.

[0007] Through the above technical solutions, further, the auxiliary structure is installed in an annular array on the inner side surface of the rotating platform, and the surface of the mounting plate is arc-shaped, and the arc is consistent with the radian of the inner side surface of the rotating platform.

[0008] Further, the driving structure includes a reduction motor installed on the lower end surface of the rotating body and an intermediate movable column installed on the upper end of the rotating body. A bearing is provided at the connection between the intermediate movable column and the rotating body, and a large gear is provided on the surface of the intermediate movable column. The output end of the reduction motor is connected with a small gear, and the large gear and the small gear constitute a gear transmission.

[0009] As a preferred technical solution, the lifting structure includes a mounting platform installed on the upper end surface of the rotating platform, a lifting rod is connected to the upper end surface of the mounting platform, the lifting rod is composed of an outer lifting rod and an inner lifting rod cross-connected, and the two ends of the outer lifting rod and the inner lifting rod are connected by a shaft. A hydraulic cylinder is provided on the surface of the shaft, and the telescopic end of the hydraulic cylinder is connected to the surface of the shaft at the other end of the outer lifting rod and the inner lifting rod.

[0010] Further, a lifting platform is connected to the upper end surfaces of the outer lifting rod and the inner lifting rod.

[0011] As a preferred technical solution, a ladder is provided on the right side of the lifting machine moving base, and the height of the ladder is at the same horizontal plane as the surface of the lowered lifting platform.

[0012] Further, support wheels are distributed in an annular array on the upper end surface of the lifting machine moving base, and the surface of the support wheels contacts the lower surface of the rotating platform.

[0013] Compared with the prior art, the present utility model provides a rotatable lifting platform, which has the following beneficial effects:

[0014] 1. This rotatable lifting platform is integrated with the lifting machine moving base through a steering structure, making its overall structure relatively compact. Secondly, the lifting structure is installed on the steering structure, making the lifting structure more stable. When construction workers operate on one side, through the contact between the movable column and the outer surface of the rotating bearing, mutual clamping can be achieved, preventing the rotating platform from tilting, thus ensuring the stability of the lifting structure and improving its safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of a rotatable lifting platform of the present utility model;

[0016] Figure 2 FIG. is a schematic structural diagram of the lifting machine moving base of a rotatable lifting platform of the present utility model;

[0017] Figure 3 FIG. is a schematic structural diagram of the support wheel of a rotatable lifting platform of the present utility model;

[0018] Figure 4 FIG. is a schematic cross-sectional structural diagram of the lifting machine moving base of a rotatable lifting platform of the present utility model;

[0019] Figure 5 FIG. is a schematic structural diagram of the steering structure of a rotatable lifting platform of the present utility model;

[0020] Figure 6 FIG. is a schematic structural diagram of the large gear and small gear of a rotatable lifting platform of the present utility model;

[0021] Figure 7 FIG. is a schematic cross-sectional structural diagram of the rotating platform of a rotatable lifting platform of the present utility model;

[0022] Figure 8 FIG. is a rotatable lifting platform of the present utility model Figure 7 Schematic enlarged partial structure diagram at position A;

[0023] Figure 9 FIG. is a schematic diagram of the auxiliary structure of a rotatable lifting platform of the present utility model.

[0024] In the figure: 1. Lifting machine moving base; 2. Support wheel; 3. Ladder; 4. Steering base; 5. Rotating body; 6. Reduction motor; 7. Rotating bearing; 8. Intermediate movable column; 9. Large gear; 10. Small gear; 11. Rotating platform; 12. Auxiliary structure; 1201. Mounting plate; 1202. Protruding block; 1203. Movable column; 13. Mounting platform; 14. Outer lifting rod; 15. Inner lifting rod; 16. Lifting platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment

[0027] Please refer to Figures 1-9 , the present utility model provides the following technical solutions: a rotatable lifting platform, including a lifting machine moving base 1, a steering structure is installed in the lifting machine moving base 1, the steering structure is integrated with the lifting machine moving base 1, the steering structure extends above the lifting machine moving base 1, a lifting structure driven by a hydraulic cylinder to lift is provided on the steering structure, and an auxiliary structure 12 for improving steering stability is provided in the steering structure. The steering structure includes a steering base 4 installed in the lifting machine moving base 1, a rotating body 5 is provided at the upper end of the steering base 4, a rotating bearing 7 is provided on the upper end surface of the rotating body 5, a rotating platform 11 is movably installed on the outer surface of the rotating body 5, an auxiliary structure 12 is provided inside the rotating platform 11, the auxiliary structure 12 is in contact with the outer surface of the rotating bearing 7, the auxiliary structure 12 includes a mounting plate 1201 installed inside the rotating body 5, convex blocks 1202 are symmetrically provided on the inner side surface of the mounting plate 1201, a plug pin shaft is inserted through the convex blocks 1202, a movable column 1203 is movably installed on the surface of the plug pin shaft, and the movable column 1203 is in contact with the outer surface of the rotating bearing 7. A driving structure is also provided at the upper end of the steering base 4.

[0028] In this implementation scheme, the specific working principle is as follows: Through the integrated design of the steering structure and the lifting machine moving base 1, the overall structure of the platform is more compact, and the steering structure is installed in the lifting machine moving base 1, making its stability higher. Among them, the steering structure mainly drives the rotating platform 11 to rotate through the driving structure. When construction workers are constructing on one side of the lifting structure, in order to prevent tilting problems, at this time, the movable column 1203 is clamped with the surface of the rotating bearing 7, so that the rotating platform 11 will not tilt, and thus the safety of the personnel on the lifting structure can be ensured.

[0029] According to the above, the auxiliary structure 12 can be specifically referred to Figure 8 and Figure 9 It can be seen that the auxiliary structure 12 is installed in an annular array on the inner side surface of the rotating platform 11, and the surface of the mounting plate 1201 is arc-shaped, and the arc is consistent with the radian of the inner side surface of the rotating platform 11. Such a setting can make the contact area between the movable column 1203 and the outer side surface of the rotating bearing the largest, and thus more effectively prevent the rotating platform 11 from tilting.

[0030] For the drive structure within the steering structure, please refer specifically to Figure 5 and Figure 6 It can be seen that the drive structure includes a reduction motor 6 installed on the lower end face of the rotating body 5 and an intermediate movable column 8 installed on the upper end of the rotating body 5. A bearing is provided at the connection between the intermediate movable column 8 and the rotating body 5, and a large gear 9 is provided on the surface of the intermediate movable column 8. The output end of the reduction motor 6 is connected to a small gear 10. The large gear 9 and the small gear 10 form a gear drive. The reduction motor 6 drives the small gear 10 to rotate, and the small gear 10 drives the large gear 9 to rotate, thereby driving the intermediate movable column 8 to rotate and causing the rotating platform 11 to rotate.

[0031] For the lifting structure, please refer specifically to Figure 1 It can be seen that the lifting structure includes a mounting platform 13 installed on the upper end face of the rotating platform 11. The upper end face of the mounting platform 13 is connected to a lifting rod, which is composed of an outer lifting rod 14 and an inner lifting rod 15 cross-connected. The two ends of the outer lifting rod 14 and the inner lifting rod 15 are connected by a shaft, and a hydraulic cylinder is provided on the surface of the shaft. The telescopic end of the hydraulic cylinder is connected to the surface of the shaft at the other end of the outer lifting rod 14 and the inner lifting rod 15. The lifting structure belongs to the prior art and is consistent with the existing technology, so no more introduction will be made here. It should be noted that the structure of this lifting structure does not change the content of the existing technology.

[0032] Refer to Figure 1 It can be seen that a lifting platform 16 is connected to the upper end faces of the outer lifting rod 14 and the inner lifting rod 15.

[0033] To facilitate construction workers to climb onto the lifting platform 16, please refer specifically to Figure 1 and Figure 3 It can be seen that a ladder 3 is provided on the right side of the mobile base 1 of the elevator. The height of the ladder 3 is at the same horizontal plane as the surface of the lowered lifting platform 16.

[0034] To be able to improve the bearing capacity of the rotating platform 11, please refer specifically to Figure 3 It can be seen that support wheels 2 are distributed in a circular array on the upper end face of the mobile base 1 of the elevator, and the surface of the support wheels 2 contacts the lower surface of the rotating platform 11.

[0035] Finally, it should be noted that: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rotatable lifting platform, comprising a lifting machine moving base (1), characterized in that: A steering structure is installed inside the lifting platform moving base (1). The steering structure is integrated with the lifting platform moving base (1), extends above the lifting platform moving base (1), and is provided with a lifting structure driven by a hydraulic cylinder for lifting. An auxiliary structure (12) for improving steering stability is provided inside the steering structure. The steering structure includes a steering base (4) installed inside the lifting platform moving base (1). A rotating body (5) is provided at the upper end of the steering base (4). A rotating bearing (7) is provided on the upper end surface of the rotating body (5). A rotating platform (11) is movably installed on the outer surface of the rotating body (5). An auxiliary structure (12) is provided inside the rotating platform (11). The auxiliary structure (12) contacts the outer surface of the rotating bearing (7). The auxiliary structure (12) includes a mounting plate (1201) installed inside the rotating body (5). Raised blocks (1202) are symmetrically provided on the inner side surface of the mounting plate (1201). A pin shaft is inserted through the raised blocks (1202). A movable column (1203) is movably installed on the surface of the pin shaft. The movable column (1203) contacts the outer surface of the rotating bearing (7). A driving structure is also provided at the upper end of the steering base (4).

2. The rotatable lifting platform according to claim 1, wherein: The auxiliary structure (12) is installed in an annular array on the inner side surface of the rotating platform (11), and the surface of the mounting plate (1201) is arc-shaped, and the arc is consistent with the radian of the inner side surface of the rotating platform (11).

3. A rotatable lifting platform according to claim 1, characterized in that: The driving structure includes a reduction motor (6) installed on the lower end surface of the rotating body (5) and an intermediate movable column (8) installed at the upper end of the rotating body (5). A bearing is provided at the connection between the intermediate movable column (8) and the rotating body (5). A large gear (9) is provided on the surface of the intermediate movable column (8). The output end of the reduction motor (6) is connected with a small gear (10). The large gear (9) and the small gear (10) form a gear drive.

4. A rotatable lifting platform according to claim 1, characterized in that: The lifting structure includes a mounting platform (13) installed on the upper end surface of the rotating platform (11). A lifting rod is connected to the upper end surface of the mounting platform (13). The lifting rod is composed of an outer lifting rod (14) and an inner lifting rod (15) cross-connected. The two ends of the outer lifting rod (14) and the inner lifting rod (15) are connected by a shaft. A hydraulic cylinder is provided on the surface of the shaft. The telescopic end of the hydraulic cylinder is connected to the surface of the shaft at the other end of the outer lifting rod (14) and the inner lifting rod (15).

5. A rotatable lifting platform according to claim 4, characterized in that: The upper end surfaces of the outer lifting rod (14) and the inner lifting rod (15) are connected with a lifting platform (16).

6. The rotatable lifting platform according to claim 1, wherein: A ladder (3) is provided on the right side of the lifting platform moving base (1). The height of the ladder (3) is at the same horizontal plane as the surface of the lowered lifting platform (16).

7. A rotatable lifting platform according to claim 1, characterized in that: Support wheels (2) are distributed in an annular array on the upper end surface of the lifting platform moving base (1). The surface of the support wheels (2) contacts the lower surface of the rotating platform (11).

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