Improved building construction hoisting device
By combining a servo motor-driven rapid lifting mechanism with a worm gear, the problem of slow lifting speed of electric hoists is solved, enabling rapid hoisting and self-locking functions, thus improving the efficiency and safety of construction.
Patent Information
- Application Number
- CN202520010817.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing electric hoists have a slow lifting speed, which is especially problematic in construction scenarios where heavy objects are frequently lifted or where high lifting efficiency is required. This affects project progress and poses safety hazards.
The rapid lifting mechanism, driven by a servo motor, uses a combination of worm gear and worm wheel to achieve rapid lifting of the wire rope by using the difference in diameter between the large and small wire rope spools. It also has a self-locking function to prevent the heavy object from suddenly falling.
It improves hoisting speed, meets the needs of efficient construction, enhances safety performance, and avoids safety risks caused by sudden power outages or motor failures.
Smart Images

Figure CN223646133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to an improved building construction hoisting device. Background Technology
[0002] Construction hoisting equipment is used for lifting and moving building materials and components. It mainly includes tower cranes and electric hoists. Tower cranes are the most common large hoisting equipment on construction sites, featuring a tall tower that covers a large working area. They have a large working radius and high lifting height, capable of hoisting various building materials such as steel and concrete. For example, in the construction of high-rise buildings, they are used to hoist materials such as reinforcing bars and precast floor slabs to higher floors. Electric hoists are generally installed on I-beam rails and are used for the vertical hoisting of smaller objects. They are often used in workshops, warehouses, or small construction projects to lift tools and small equipment. These hoisting devices require professional operation and regular inspection and maintenance to ensure safety.
[0003] Existing electric hoists have relatively slow lifting and running speeds, especially in construction scenarios that require frequent lifting of heavy objects or high hoisting efficiency. Their speed may affect the progress of the project and cannot meet the needs of construction.
[0004] Therefore, we propose an improved hoisting device for building construction. Utility Model Content
[0005] The present invention aims to solve the technical problems existing in the prior art and provide an improved building construction hoisting device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an improved building construction hoisting device, comprising a first mounting frame, a mounting bracket fixedly mounted on the lower front end of the first mounting frame, a mounting plate fixedly mounted on the bottom of the mounting bracket, a rapid lifting mechanism provided on the inner wall of the first mounting frame, the rapid lifting mechanism including a servo motor, the left side wall of the servo motor being fixedly connected to the right side wall of the first mounting frame, the output end of the servo motor movably penetrating through the right side of the inner wall of the first mounting frame, a worm gear fixedly mounted on the output end of the servo motor, the left side wall of the worm gear being movably connected to the left side of the inner wall of the first mounting frame, and a worm wheel movably meshing with the outer wall of the worm gear.
[0007] Preferably, a rotating shaft is fixedly installed on the inner wall of the worm gear, and the top of the rotating shaft is movably connected to the top of the inner wall of the first mounting frame, while the bottom of the rotating shaft movably passes through the bottom of the first mounting frame and is movably connected to the top of the mounting plate.
[0008] Preferably, a large steel wire reel is fixedly installed on the outer wall of the rotating shaft at the lower end of the first mounting frame, and a small steel wire reel is fixedly installed on the outer wall of the rotating shaft at the lower end of the large steel wire reel.
[0009] Preferably, a first pulley is movably mounted on the right side of the back of the mounting bracket via a pivot.
[0010] Preferably, a second pulley is movably mounted on the left side of the back of the mounting bracket via a pivot.
[0011] Preferably, a wire rope is fixedly installed on the inner wall of the large wire rope reel, and the wire rope is wound in the forward direction with the inside of the large wire rope reel. The end of the wire rope away from the large wire rope reel is fixedly connected to the inner wall of the small wire rope reel, and the wire rope is wound in the reverse direction with the inner wall of the small wire rope reel. The outer wall of the wire rope is movably connected to the inner walls of the first pulley and the second pulley respectively.
[0012] Preferably, a third pulley is movably installed at the lower end of the outer wall of the wire rope.
[0013] Preferably, the third pulley is movably mounted with a second mounting frame via a pivot.
[0014] Preferably, a hook is fixedly installed at the bottom of the second mounting frame.
[0015] This utility model provides an improved hoisting device for building construction. It has the following beneficial effects:
[0016] 1. This improved construction hoisting device features a rapid lifting mechanism. By adjusting the diameter difference between the large and small wire reels, the lifting speed increases. This mechanism is suitable for construction scenarios involving frequent lifting of heavy objects or where high hoisting efficiency is required, thus accelerating project progress and meeting the needs of construction.
[0017] 2. This improved construction hoisting device incorporates a worm gear and a worm wheel. The worm gear can drive the worm wheel to rotate, while the worm wheel cannot drive the worm gear to rotate. This gives the entire device a self-locking function, preventing the hoisted load from suddenly falling due to a power outage or servo motor failure, thus improving the overall safety performance of the device. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall front structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the left side wall structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the right wall structure of this utility model.
[0021] Legend: 10. First mounting frame; 11. Mounting bracket; 12. Mounting plate; 13. Servo motor; 14. Worm gear; 15. Worm wheel; 16. Rotating shaft; 17. Large wire spool; 18. Small wire spool; 19. First pulley; 20. Second pulley; 21. Wire rope; 22. Third pulley; 23. Second mounting frame; 24. Hook. Detailed Implementation
[0022] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0023] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Example 1: An improved construction hoisting device, such as Figure 1 As shown, the system includes a first mounting frame 10. A mounting bracket 11 is fixedly mounted on the lower front end of the first mounting frame 10, and a mounting plate 12 is fixedly mounted on the bottom of the mounting bracket 11. A quick-lifting mechanism is provided on the inner wall of the first mounting frame 10. The quick-lifting mechanism includes a servo motor 13, and the left side wall of the servo motor 13 is fixedly connected to the right side wall of the first mounting frame 10. The output end of the servo motor 13 movably passes through the right side of the inner wall of the first mounting frame 10. A worm gear 14 is fixedly mounted on the output end of the servo motor 13, and the left side wall of the worm gear 14 is movably connected to the left side of the inner wall of the first mounting frame 10. A worm wheel 15 is movably engaged on the outer wall of the worm gear 14, and the inner wall of the worm wheel 15 is fixedly mounted on... The system is equipped with a rotating shaft 16, the top of which is movably connected to the top of the inner wall of the first mounting frame 10, and the bottom of which movably passes through the bottom of the first mounting frame 10 and is movably connected to the top of the mounting plate 12. A large steel wire reel 17 is fixedly installed on the outer wall of the rotating shaft 16 at the lower end of the first mounting frame 10. By setting up a rapid lifting mechanism, the rapid lifting mechanism can change the diameter difference between the large steel wire reel 17 and the small steel wire reel 18. The larger the diameter difference between the large steel wire reel 17 and the small steel wire reel 18, the faster the lifting speed. This is applicable in construction scenarios where heavy objects are frequently lifted or where high lifting efficiency is required, thus accelerating the project progress and meeting the needs of building construction.
[0029] Example 2: Based on Example 1, as follows Figures 1-3As shown, a small wire disc 18 is fixedly installed on the outer wall of the rotating shaft 16 at the lower end of the large wire disc 17. A first pulley 19 is movably installed on the right side of the back of the mounting frame 11 via a rotating shaft, and a second pulley 20 is movably installed on the left side of the back of the mounting frame 11 via a rotating shaft. A wire rope 21 is fixedly installed on the inner wall of the large wire disc 17, and the wire rope 21 is wound in the same direction with the inside of the large wire disc 17. By setting a worm gear 14 and a worm wheel 15, the worm gear 14 can drive the worm wheel 15 to rotate, while the worm wheel 15 cannot drive the worm gear 14 to rotate. This gives the entire device a self-locking function, preventing the suspended heavy object from suddenly falling due to a sudden power outage or a malfunction of the servo motor 13, thus improving the safety performance of the entire device.
[0030] Example 3: Based on Examples 1 and 2, as follows... Figures 1-3 As shown, the end of the wire rope 21 away from the large wire reel 17 is fixedly connected to the inner wall of the small wire reel 18. The wire rope 21 is wound in the opposite direction to the inner wall of the small wire reel 18. The outer wall of the wire rope 21 is movably connected to the inner walls of the first pulley 19 and the second pulley 20 respectively. A third pulley 22 is movably installed at the lower end of the outer wall of the wire rope 21. A second mounting frame 23 is movably installed on the third pulley 22 through a rotating shaft. A hook 24 is fixedly installed at the bottom of the second mounting frame 23.
[0031] The working principle of this utility model is as follows: By turning on the forward rotation switch of the servo motor 13, the output end of the servo motor 13 drives the worm gear 14 to start rotating forward. The worm gear 14 drives the rotating shaft 16 to start rotating forward through the worm wheel 15. The rotating shaft 16 drives the large wire rope spool 17 and the small wire rope spool 18 to start rotating forward. The large wire rope spool 17 drives the wire rope 21 to start retracting, and the small wire rope spool 18 drives the wire rope 21 to start releasing. Because there is a diameter difference between the large wire rope spool 17 and the small wire rope spool 18, the wire rope 21 will drive the third pulley 22, the second mounting frame 23, and the hook 24 to lift upward. The lifting speed can be controlled by the large wire rope spool 17 and the small wire rope spool 18. The diameter difference of disc 18 can be adjusted, or the speed of servo motor 13 can be adjusted. By turning on the reverse switch of servo motor 13, the output end of servo motor 13 drives worm gear 14 to start reversing. Worm gear 14 drives rotating shaft 16 to start reversing through worm wheel 15. Rotating shaft 16 drives large wire disc 17 and small wire disc 18 to start reversing respectively. Large wire disc 17 drives wire rope 21 to start releasing, and small wire disc 18 drives wire rope 21 to start retracting. Because there is a diameter difference between large wire disc 17 and small wire disc 18, the third pulley 22, second mounting frame 23 and hook 24 will be lowered through wire rope 21.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An improved construction hoisting device, comprising a first mounting frame (10), characterized in that: A mounting bracket (11) is fixedly installed on the lower front end of the first mounting frame (10), and a mounting plate (12) is fixedly installed on the bottom of the mounting bracket (11). A quick lifting mechanism is provided on the inner wall of the first mounting frame (10). The quick lifting mechanism includes a servo motor (13), and the left side wall of the servo motor (13) is fixedly connected to the right side wall of the first mounting frame (10). The output end of the servo motor (13) moves through the right side of the inner wall of the first mounting frame (10). A worm gear (14) is fixedly installed on the output end of the servo motor (13), and the left side wall of the worm gear (14) is movably connected to the left side of the inner wall of the first mounting frame (10). A worm wheel (15) is movably engaged on the outer wall of the worm gear (14).
2. The improved construction hoisting device according to claim 1, characterized in that: The inner wall of the worm gear (15) is fixedly equipped with a rotating shaft (16), and the top of the rotating shaft (16) is movably connected to the top of the inner wall of the first mounting frame (10), and the bottom of the rotating shaft (16) movably passes through the bottom of the first mounting frame (10) and is movably connected to the top of the mounting plate (12).
3. The improved construction hoisting device according to claim 2, characterized in that: A large steel wire disc (17) is fixedly installed on the outer wall of the rotating shaft (16) at the lower end of the first mounting frame (10), and a small steel wire disc (18) is fixedly installed on the outer wall of the rotating shaft (16) at the lower end of the large steel wire disc (17).
4. The improved construction hoisting device according to claim 1, characterized in that: The first pulley (19) is movably mounted on the right side of the back of the mounting bracket (11) via a pivot.
5. The improved construction hoisting device according to claim 1, characterized in that: A second pulley (20) is movably mounted on the left side of the back of the mounting bracket (11) via a pivot.
6. The improved construction hoisting device according to claim 3, characterized in that: A wire rope (21) is fixedly installed on the inner wall of the large wire reel (17), and the wire rope (21) is wound in the forward direction with the inside of the large wire reel (17). The end of the wire rope (21) away from the large wire reel (17) is fixedly connected to the inner wall of the small wire reel (18), and the wire rope (21) is wound in the reverse direction with the inner wall of the small wire reel (18). The outer wall of the wire rope (21) is movably connected to the inner walls of the first pulley (19) and the second pulley (20) respectively.
7. The improved construction hoisting device according to claim 6, characterized in that: A third pulley (22) is movably installed at the lower end of the outer wall of the wire rope (21).
8. The improved construction hoisting device according to claim 7, characterized in that: The third pulley (22) is movably mounted with the second mounting frame (23) via a pivot.
9. The improved construction hoisting device according to claim 8, characterized in that: A hook (24) is fixedly installed at the bottom of the second mounting frame (23).