Lifting platform for building construction

Abstract

The utility model discloses a lifting platform for building construction, which comprises a base, a safety mechanism is arranged on the base, the safety mechanism comprises a lifting frame, a follower plate, two guide rods and a fixing sleeve, the lifting frame is mounted on the base, the two guide rods are respectively and fixedly mounted on the base, the follower plate is arranged on the lifting frame, and the fixing sleeve is arranged on the follower plate. According to the innovative lifting platform for building construction, through the unique double safety guarantee mechanism design, the problem that potential safety hazards are caused due to the fact that a traditional lifting platform only depends on lead screw self-locking is effectively solved; according to the lifting platform, more reliable and comprehensive safety guarantee is provided for empty operation, the core innovation of the lifting platform lies in an intelligent safety system architecture, traditional lead screw driving and an innovative mechanical self-locking device are organically combined, and double safety protection systems which are complementary to each other and independent from each other are formed.

Description

Technical Field

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

[0002] In modern construction, lifting platforms serve as crucial auxiliary equipment for high-altitude operations, and their safety performance and operational reliability directly impact the lives of construction workers and the smooth progress of projects. With increasingly complex and taller building structures, higher demands are placed on the stability, load-bearing capacity, and safety of lifting platforms. Currently, the core drive mechanism of widely used construction lifting platforms primarily relies on screw drive systems. This transmission method utilizes a motor to drive the screw to rotate, converting the rotational motion into linear lifting motion of the platform through a threaded joint, and relying on the self-locking characteristics of the screw thread to maintain the platform's static stability at any height. Screw drive systems have become the mainstream technology for lifting platforms due to their simple structure, precise control, and static self-locking advantages. However, this design relying solely on screw drive presents significant safety hazards: when the screw thread weakens its self-locking ability due to long-term wear, or under abnormal conditions such as sudden loads or severe vibrations, a single screw system may not provide sufficient safety redundancy. If the screw or related transmission components fail, it will directly lead to the platform's uncontrolled fall, posing a serious safety risk. Especially in high-altitude construction environments, platforms typically carry personnel and a large amount of building materials. This design concept, which lacks multiple safety safeguards, can no longer meet the increasingly stringent safety standards and regulations for modern construction, becoming a technical bottleneck that restricts the improvement of the safety of lifting platform applications. Utility Model Content

[0003] (a) Technical problems to be solved

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

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a construction lifting platform, comprising a base, a safety mechanism on the base, the safety mechanism comprising a lifting frame, a follower plate, guide rods and a fixing sleeve, the lifting frame being mounted on the base, two guide rods being provided and fixedly mounted on the base respectively, the follower plate being mounted on the lifting frame, the fixing sleeve being mounted on the follower plate, and the fixing sleeve and guide rods being coaxially arranged, a retraction platform being provided on the inner wall of the fixing sleeve, and multiple retraction blocks being slidably provided on the side wall of the retraction platform, each retraction block having multiple friction grooves, the retraction blocks abutting against the side wall of the guide rods, the friction grooves fitting against the guide rods, a bottom hole being provided on the lower end face of the fixing sleeve, and the guide rods being slidably connected in the bottom hole.

[0007] The present invention is further configured such that a plurality of through holes are equally spaced along the axis on the upper end surface of the fixed sleeve, and a push rod is slidably disposed in each of the through holes.

[0008] The present invention is further configured such that each push rod is provided with a universal spring at its lower end, and the other end of the universal spring is connected to the shrink block.

[0009] The present invention is further configured such that the upper end of the plurality of push rods is provided with a follower disk, and the follower disk and the guide rod are coaxially arranged.

[0010] The present invention is further configured such that a plurality of spring pieces are provided at equal intervals on the outer wall of the follower disk, and a top ball is provided at the lower end of each spring piece.

[0011] The present invention is further configured such that a plurality of annular grooves are equally spaced on the outer wall of the fixed sleeve, and the plurality of top balls respectively abut against the annular grooves.

[0012] The present invention is further configured such that a motor and a reducer are fixedly mounted on the base, the motor is connected to the base, a lead screw is provided on the extended end of the reducer, the lead screw is threaded to the follower plate, and a top block is provided at the upper end of the two guide rods, and the lead screw is rotatably connected to the top block.

[0013] The present invention is further provided that the upper end of the lifting frame is provided with a protective railing.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a lifting platform for construction, which has the following advantages:

[0016] This innovative construction lifting platform effectively solves the safety hazards caused by the reliance on screw self-locking in traditional lifting platforms through a unique dual safety protection mechanism, providing more reliable and comprehensive safety for high-altitude construction operations. The core innovation of this lifting platform lies in its intelligent safety system architecture, which organically combines traditional screw drive with an innovative mechanical self-locking device, forming a complementary and independent dual safety protection system. Even in extreme working conditions or in the event of partial equipment failure, it can still ensure the stability of the platform and the safety of the workers. Its working principle is based on a conventional screw drive system, with the addition of an independent safety device based on the friction self-locking principle. This device uses a special retractable block assembly that slides along the guide rod. Through a carefully designed friction surface and retractable structure, when the platform tends to descend, the retractable self-locking mechanism is automatically triggered, creating a strong frictional gripping effect on the guide rod, achieving reliable platform restraint. Simultaneously, this system is also equipped with adjustable elastic elements and a direction control mechanism, which can intelligently adjust the locking force and response characteristics according to different working conditions, ensuring precise and reliable safety protection under various complex conditions.

[0017] This dual safety protection design enhances the safety performance and ease of use of construction hoisting platforms from multiple dimensions. From a safety redundancy perspective, traditional hoisting platforms rely solely on the self-locking characteristics of the lead screw to maintain platform stability. Once the lead screw system fails, it will directly lead to the platform falling out of control. This innovative design, however, adds an independent mechanical self-locking device, forming a dual guarantee of "lead screw self-locking + friction self-locking". Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a construction lifting platform according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the fixing sleeve and the retraction platform in this utility model;

[0020] Figure 3 This is a cross-sectional view of the fixing sleeve in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixing sleeve in this utility model;

[0022] Figure 5 This is a schematic diagram of the shrinkage block in this utility model.

[0023] In the diagram: 1. Base; 2. Lifting frame; 3. Follower plate; 4. Guide rod; 5. Fixing sleeve; 6. Retraction platform; 7. Retraction block; 8. Friction groove; 9. Bottom hole; 10. Through hole; 11. Push rod; 12. Universal spring; 13. Follower plate; 14. Spring; 15. Top ball; 16. Annular groove; 17. Motor; 18. Reducer; 19. Lead screw; 20. Top block; 21. Guardrail. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0027] Please see Figure 1-5A construction lifting platform includes a base 1, on which a safety mechanism is provided. The safety mechanism includes a lifting frame 2, a follower plate 3, guide rods 4, and a fixing sleeve 5. The lifting frame 2 is mounted on the base 1. Two guide rods 4 are provided and fixedly mounted on the base 1. The follower plate 3 is mounted on the lifting frame 2, and the fixing sleeve 5 is mounted on the follower plate 3. The fixing sleeve 5 and the guide rods 4 are coaxially arranged. A retraction platform 6 is provided on the inner wall of the fixing sleeve 5. Multiple retraction blocks 7 are slidably provided on the side wall of the retraction platform 6. Each retraction block 7 has multiple friction grooves 8. The retraction blocks 7 abut against the side wall of the guide rods 4, and the friction grooves 8 fit against the guide rods 4. A bottom hole 9 is provided on the lower end face of the fixing sleeve 5, and the guide rods 4 are slidably connected in the bottom hole 9. Multiple through holes 10 are provided at equal intervals along the axis on the upper end face of the fixing sleeve 5. Push rods 11 are slidably installed in each through hole 10. Each push rod 11 has a universal spring 12 at its lower end. The other end of the universal spring 12 is connected to the retraction block 7. Follower plates 13 are provided at the upper ends of the multiple push rods 11. Follower plates 13 and guide rods 4 are coaxially arranged. Multiple spring pieces 14 are provided at equal intervals on the outer wall of follower plates 13. Each spring piece 14 has a top ball 15 at its lower end. Multiple annular grooves 16 are provided at equal intervals on the outer wall of the fixing sleeve 5. Multiple top balls 15 abut against the annular grooves 16. A motor 17 and a reducer 18 are fixed on the base 1. The motor 17 is connected to the base 1. A lead screw 19 is provided on the extended end of the reducer 18. The lead screw 19 is threaded to the follower plate 3. Top blocks 20 are provided at the upper ends of the two guide rods 4. The lead screw 19 is rotatably connected to the top blocks 20. A guardrail 21 is provided at the upper end of the lifting frame 2.

[0028] In this embodiment, since the lead screw 19 is threaded onto the follower plate 3, the rotation of the lead screw 19 can drive the follower plate 3 to move up and down. Therefore, the lifting frame 2 will move up and down accordingly. The fixing sleeve 5 is installed on the follower plate 3, so it will also move upward. When moving downward, the universal spring 12 will apply an upward pull, so the friction groove 8 on the shrink block 7 will fit against the side wall of the guide rod 4. Therefore, it will slide with the guide rod 4, and the shrink block 7 will shrink and lock along the shrinking platform 6, thus ensuring unidirectional movement. Not only does the lead screw 19 ensure self-locking, but the shrink block 7 also ensures double self-locking, thereby improving the safety of use.

[0029] More specifically, when it is necessary to adjust the direction and force of the universal spring 12, since the top ball 15 is stuck in the annular groove 16, it can be driven to move in different annular grooves 16 by the action of the follower plate 13, thus changing the position of the universal spring 12 and ensuring the convenience of use.

[0030] In summary, during the use or operation of the entire equipment: since the lead screw 19 is threadedly connected to the follower plate 3, the rotation of the lead screw 19 can drive the follower plate 3 to move up and down, so the lifting frame 2 will move up and down accordingly. The fixed sleeve 5 is installed on the follower plate 3, so it will also move upward. When moving downward, since the universal spring 12 will apply an upward pull, the friction groove 8 on the shrink block 7 will fit against the side wall of the guide rod 4, so it will slide with the guide rod 4, and make the shrink block 7 shrink and lock along the shrinking platform 6, thus ensuring unidirectional movement. Not only does the lead screw 19 ensure self-locking, but the shrink block 7 also ensures double self-locking, thereby improving the safety of use.

[0031] When it is necessary to adjust the direction and force of the universal spring 12, since the top ball 15 is stuck in the annular groove 16, it can be driven to move in different annular grooves 16 by the action of the follower plate 13. Therefore, the position of the universal spring 12 can be changed, thus ensuring the convenience of use.

[0032] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A construction lifting platform, comprising a base (1), characterized in that: The base (1) is provided with a safety mechanism, which includes a lifting frame (2), a follower plate (3), a guide rod (4) and a fixing sleeve (5). The lifting frame (2) is installed on the base (1). There are two guide rods (4), and the two guide rods (4) are fixedly installed on the base (1) respectively. The follower plate (3) is installed on the lifting frame (2). The fixing sleeve (5) is installed on the follower plate (3). The fixing sleeve (5) and the guide rod (4) are coaxially arranged. The inner wall of the fixing sleeve (5) is provided with a shrinkage platform (6). Multiple shrinkage blocks (7) are slidably provided on the side wall of the shrinkage platform (6). Multiple friction grooves (8) are opened on each shrinkage block (7). The shrinkage block (7) abuts against the side wall of the guide rod (4). The friction grooves (8) are attached to the guide rod (4). A bottom hole (9) is opened on the lower end face of the fixing sleeve (5). The guide rod (4) is slidably connected in the bottom hole (9).

2. The construction lifting platform according to claim 1, characterized in that: The upper end face of the fixed sleeve (5) is provided with a plurality of through holes (10) at equal intervals along the axis, and a push rod (11) is slidably provided in each of the through holes (10).

3. A construction lifting platform according to claim 2, characterized in that: Each of the push rods (11) is provided with a universal spring (12) at its lower end, and the other end of the universal spring (12) is connected to the contraction block (7).

4. A construction lifting platform according to claim 3, characterized in that: The upper ends of the plurality of push rods (11) are provided with follower disks (13), and the follower disks (13) and the guide rods (4) are coaxially arranged.

5. A construction lifting platform according to claim 4, characterized in that: The outer wall of the follower disk (13) is provided with multiple spring pieces (14) at equal intervals, and each spring piece (14) is provided with a top ball (15) at its lower end.

6. A construction lifting platform according to claim 5, characterized in that: The outer wall of the fixed sleeve (5) is provided with multiple annular grooves (16) at equal intervals, and the multiple top balls (15) respectively abut against the annular grooves (16).

7. A construction lifting platform according to claim 6, characterized in that: A motor (17) and a reducer (18) are fixedly mounted on the base (1). The motor (17) is connected to the base (1). A lead screw (19) is provided on the extended end of the reducer (18). The lead screw (19) is threadedly connected to the follower plate (3). A top block (20) is provided at the upper end of the two guide rods (4). The lead screw (19) is rotatably connected to the top block (20).

8. A construction lifting platform according to claim 7, characterized in that: The upper end of the lifting frame (2) is provided with a guardrail (21).

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