Lifting device based on electric hoist
By designing anti-collision and stabilizing components on the electric hoist, the problem of the hook hitting key components when the traditional electric hoist rises is solved, achieving safe buffering and positioning of the hook, and improving the safety and reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAICHENG ELEVATORING MACHINERY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional electric hoists lack protective measures when rising, and the hook can easily collide with critical components such as the hoist's drum, motor, and reducer, causing equipment damage and rendering it unable to function properly.
A lifting device including a collision avoidance component and a stabilization component is designed. The collision avoidance component provides a buffering force through a first spring, and the stabilization component ensures that the hook does not collide with critical components when rising through a locking block and an electric push rod, and maintains a safe position when not in use.
This effectively prevents damage to critical components from the hook impacting during lifting, reduces the risk of equipment damage, and improves the safety and reliability of the electric hoist.
Smart Images
Figure CN224185780U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electric hoist technology, specifically a lifting device based on an electric hoist. Background Technology
[0002] Low-magnetic electric hoists are a special type of electric hoist. Based on ordinary electric hoists, they utilize special designs and materials to reduce their magnetic properties. Applications of low-magnetic electric hoists include: aerospace, for lifting operations during aircraft component manufacturing, assembly, and maintenance, avoiding interference from magnetic fields on aircraft electronic equipment and precision instruments; the medical field, for lifting medical equipment and instruments without interfering with the normal operation of medical equipment and medical diagnostic results; and the marine field, for lifting marine equipment, such as marine sonar detection equipment, without interfering with the ship's electronic equipment and instruments. The low-magnetic materials are corrosion-resistant and can withstand seawater erosion.
[0003] In existing technologies, traditional electric hoists do not have protective measures when they are rising, which makes it highly likely that the hook will collide with key components such as the hoist's drum, motor, and reducer, causing equipment damage and preventing normal operation.
[0004] Therefore, this utility model provides a lifting device based on an electric hoist. Utility Model Content
[0005] To address the shortcomings of existing technology and solve the problem that traditional electric hoists lack protective measures during ascent, which greatly increases the likelihood of the hook colliding with critical components such as the hoist's drum, motor, and reducer, leading to equipment damage and malfunction.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A lifting device based on an electric hoist, comprising an electric hoist body, a hoist body with a lifting rope at its output end, a circular column fixedly connected to the bottom of the hoist rope, a hook fixedly connected to the bottom of the circular column, and a protective mechanism at the bottom of the electric hoist body, the protective mechanism comprising:
[0007] The anti-collision assembly includes a first circular plate fixed to the bottom of the electric hoist body by a set of fixing blocks, a first through hole being provided on the first circular plate, a second circular plate fixed to the circular column, and a third circular plate fixed to the top of the second circular plate by a first spring, and the third circular plate being slidably connected to the circular column through a second through hole.
[0008] A stabilizing component, mounted on the third circular plate, is used to stabilize the hook.
[0009] Preferably, the stabilizing component includes a set of rectangular blocks fixed to the top of the third circular plate. The sidewalls of the rectangular blocks are provided with sliding grooves. The bottom of the sliding grooves is fixed with a locking block by a pair of second springs, and the sidewalls of the locking blocks are inclined.
[0010] Preferably, the bottom of the first circular plate has a set of rectangular grooves, and the top of the first circular plate has a set of rectangular through holes, and the rectangular through holes are connected to the rectangular grooves.
[0011] Preferably, a pair of electric push rods are fixedly connected to the bottom of the electric hoist body, and a ring is fixedly connected to the telescopic end of the pair of electric push rods. A set of pressing blocks is fixedly connected to the bottom of the ring, and the pressing blocks are slidably connected in the rectangular through hole.
[0012] Preferably, the bottom of the first circular plate has a conical hole that is connected to the first through hole, and the top of the first circular plate has a set of circular holes.
[0013] Preferably, the bottom of the first circular plate is provided with a set of tapered through grooves, and the tapered through grooves are connected to the circular holes, and the top of the third circular plate is fixed with a set of guide rods.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The lifting device based on an electric hoist described in this utility model has a third circular plate fixed to a second circular plate by a first spring. During lifting, the third circular plate contacts the first circular plate first, and the first spring provides a buffering force, thus preventing excessive swinging of the hook after lifting and preventing equipment damage. Furthermore, the circular column can slide within the first through hole, providing a safe distance for the hook. This solves the problem in the prior art where traditional electric hoists lack protective measures during lifting, making it highly likely that the hook will collide with critical components such as the hoist's drum, motor, and reducer, leading to equipment damage and malfunction.
[0016] 2. The lifting device based on an electric hoist described in this utility model has a pair of springs connecting a locking block to a sliding groove in a rectangular block. This allows the locking block to be positioned at the bottom of the rectangular through-hole by spring force when the hook rises, thus supporting a third circular plate and preventing the third circular plate and hook from falling. When the electric hoist is not in use, the locking structure ensures the hook remains in a safe position, preventing sudden descent or elution due to misoperation, thereby reducing the occurrence of safety accidents. When needed, a pair of electric push rods are activated to press down a set of pressure blocks, which then squeeze the inclined side of the locking block, releasing its positioning. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a schematic diagram of the circular ring in this utility model;
[0020] Figure 3 This is a schematic diagram of the first circular plate in this utility model;
[0021] Figure 4 This is a schematic diagram of the third circular plate in this utility model;
[0022] Figure 5 This is a schematic diagram of the locking block in this utility model;
[0023] In the diagram: 1. Electric hoist body; 2. Lifting rope; 3. Circular column; 4. Hook; 5. First circular plate; 6. First through hole; 7. Second circular plate; 8. First spring; 9. Third circular plate; 10. Rectangular block; 11. Sliding groove; 12. Second spring; 13. Locking block; 14. Rectangular groove; 15. Rectangular through hole; 16. Electric actuator; 17. Ring; 18. Lowering block; 19. Conical hole; 20. Circular hole; 21. Conical through groove; 22. Guide rod. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a lifting device based on an electric hoist includes an electric hoist body 1. A hoisting rope 2 is provided at the output end of the electric hoist body 1. A circular column 3 is fixedly connected to the bottom of the hoisting rope 2, and a hook 4 is fixedly connected to the bottom of the circular column 3. A protective mechanism is provided at the bottom of the electric hoist body 1, including: an anti-collision component, which includes a first circular plate 5 fixedly connected to the bottom of the electric hoist body 1 by a set of fixing blocks, a first through hole 6 on the first circular plate 5, a second circular plate 7 fixedly connected to the circular column 3, and a third circular plate 9 fixedly connected to the top of the second circular plate 7 by a first spring 8, with the third circular plate 9 slidably connected to the circular column 3 through the second through hole; and a stabilizing component, which is provided on the third circular column 3. The plate 9 is used to stabilize the hook 4. During operation, a third circular plate 9 is fixed to the second circular plate 7 by a first spring 8. This allows the third circular plate 9 to contact the first circular plate 5 first during the ascent, and the first spring 8 provides a buffering force. This prevents the hook 4 from swinging excessively after it stops moving, thus avoiding damage to the equipment. The circular column 3 can slide within the first through hole 6, providing a safe distance for the hook 4. This solves the problem in the existing technology where traditional electric hoists do not have protective measures during ascent, which makes it highly likely that the hook 4 will collide with the electric hoist's drum, motor, reducer, and other key components during ascent, leading to equipment damage and inability to work properly.
[0026] The stabilizing component includes a set of rectangular blocks 10 fixed to the top of the third circular plate 9. The sidewalls of the rectangular blocks 10 have sliding grooves 11. A pair of second springs 12 fix a locking block 13 to the bottom of the sliding groove 11, and the sidewalls of the locking block 13 are inclined. A set of rectangular grooves 14 are opened at the bottom of the first circular plate 5, and a set of rectangular through holes 15 are opened at the top of the first circular plate 5, with the rectangular through holes 15 communicating with the rectangular grooves 14. A pair of electric push rods 16 are fixed to the bottom of the electric hoist body 1. A ring 17 is fixed to the telescopic end of the pair of electric push rods 16. A set of pressing blocks 18 are fixed to the bottom of the ring 17, and the pressing blocks 18 are slidably connected within the rectangular through holes 15. During operation, the sliding blocks 10 pass through the sliding grooves 11 of the rectangular blocks 10, where a pair of springs 12 are used to press the blocks. The spring is connected to the locking block 13, so that when the hook 4 rises, the locking block 13 can be located at the bottom of the rectangular through hole 15 by the elastic force, so that a set of locking blocks 13 supports the third circular plate 9, preventing the third circular plate 9 and the hook 4 from falling, and positioning the hook 4. When the electric hoist is not in use, the locking structure can ensure that the hook 4 is kept in a safe position, preventing the hook 4 from suddenly falling or rising due to misoperation, thereby reducing the occurrence of safety accidents. When it is needed, by activating a pair of electric push rods 16, a set of pressing blocks 18 are pressed down, so that the pressing blocks 18 can squeeze the inclined side of the locking block 13, releasing the positioning of the locking block 13. When the hook 4 rises, the locking block 13 can automatically complete the positioning operation.
[0027] The first circular plate 5 has a conical hole 19 at its bottom, which is connected to the first through hole 6. The first circular plate 5 has a set of circular holes 20 at its top and a set of conical grooves 21 at its bottom, which are connected to the circular holes 20. The third circular plate 9 has a set of guide rods 22 fixed to its top. During operation, the conical holes 19 are connected to the first through hole 6, so that the circular column 3 can be aligned with the first through hole 6 through the inclined surface of the conical hole 19 during the upward movement, and can slide within the first through hole 6. The conical grooves 21 allow the guide rods 22 to be inserted into the circular holes 20 for positioning during the upward movement of the third circular plate 9 by contacting the inclined surface of the groove wall of the conical groove 21 with the top of the guide rods 22. This prevents the rectangular block 10 from being misaligned with the rectangular groove 14, thus preventing the locking block 13 from being located within the rectangular groove 14 to position the hook 4 at its height.
[0028] Working principle: A third circular plate 9 is fixed to the second circular plate 7 via a first spring 8. During ascent, the third circular plate 9 contacts the first circular plate 5 first, and the first spring 8 provides a buffer, preventing excessive swinging of the hook 4 after it stops moving, thus avoiding equipment damage. The circular column 3 can slide within the first through hole 6, providing a safe distance for the hook 4. This solves the problem in existing electric hoists where no protective measures are taken during ascent, making it highly likely that the hook 4 will collide with critical components such as the hoist's drum, motor, and reducer, leading to equipment damage and malfunction. A pair of springs connects a locking block 13 to the sliding groove 11 of the rectangular block 10. The locking block 13, through its elasticity, positions itself at the bottom of the rectangular through hole 15 during hook 4 as it rises, supporting the third circular plate 9 and preventing the hook 4 from falling. This positioning of the hook 4 ensures that it remains in place when the electric hoist is not in use. The positioning structure ensures that the hook 4 remains in a safe position, preventing sudden descent or ascent due to misoperation, thus reducing the occurrence of safety accidents. When needed, a pair of electric actuators 16 are activated to press down a set of pressure blocks 18, allowing the pressure blocks 18 to squeeze the inclined side of the locking block 13, releasing the positioning of the locking block 13. Furthermore, when the hook 4 rises, the locking block 13 automatically completes the positioning operation. Through the conical hole 19 connected to the first through hole 6, the circular column 3 can be positioned... During the ascent, the inclined surface of the conical hole 19 allows the circular column 3 to be aligned with the first through hole 6 and slide within the first through hole 6. The conical through groove 21 allows the third circular plate 9 to be positioned by having the top of the guide rod 22 contact the inclined surface of the conical through groove 21 during the ascent. This prevents the rectangular block 10 from being misaligned with the rectangular groove 14, thus preventing the locking block 13 from being positioned within the rectangular groove 1411 to determine the height of the hook 4.
[0029] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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 limiting the scope of protection of this utility model.
[0031] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An electric hoist-based lifting device comprising an electric hoist body (1), characterized in that: The output end of the electric hoist body (1) is provided with a lifting rope (2), a circular column (3) is fixedly connected to the bottom of the lifting rope (2), a hook (4) is fixedly connected to the bottom of the circular column (3), and a protective mechanism is provided at the bottom of the electric hoist body (1). The protective mechanism includes: The anti-collision assembly includes a first circular plate (5) fixed to the bottom of the electric hoist body (1) by a set of fixing blocks, a first through hole (6) is provided on the first circular plate (5), a second circular plate (7) is fixed to the circular column (3), a third circular plate (9) is fixed to the top of the second circular plate (7) by a first spring (8), and the third circular plate (9) is slidably connected to the circular column (3) through the second through hole; A stabilizing component is provided on the third circular plate (9) for stabilizing the hook (4).
2. A lifting device based on an electric vine according to claim 1, characterized in that: The stabilizing component includes a set of rectangular blocks (10) fixed to the top of the third circular plate (9). The sidewall of the rectangular block (10) is provided with a sliding groove (11). The bottom of the sliding groove (11) is fixed with a locking block (13) by a pair of second springs (12), and the sidewall of the locking block (13) is inclined.
3. An electric hoist based lifting device as claimed in claim 1, wherein: The first circular plate (5) has a set of rectangular grooves (14) at the bottom and a set of rectangular through holes (15) at the top, and the rectangular through holes (15) are connected to the rectangular grooves (14).
4. An electric hoist based lifting device as claimed in claim 3, wherein: The bottom of the electric hoist body (1) is fixed with a pair of electric push rods (16), and the telescopic ends of the pair of electric push rods (16) are fixed with a ring (17). The bottom of the ring (17) is fixed with a set of pressing blocks (18), and the pressing blocks (18) are slidably connected in the rectangular through hole (15).
5. An electric hoist based lifting device as claimed in claim 1, wherein: The first circular plate (5) has a conical hole (19) at the bottom, and the conical hole (19) is connected to the first through hole (6). The first circular plate (5) has a set of circular holes (20) at the top.
6. An electric hoist based lifting device as claimed in claim 5, wherein: The bottom of the first circular plate (5) is provided with a set of conical through grooves (21), and the conical through grooves (21) are connected to the circular hole (20). The top of the third circular plate (9) is fixed with a set of guide rods (22).