Power failure protection mechanism of wire equipment

By designing power outage protection components in the Wiya equipment, and using the coordination of electric push rods and springs to achieve power outage protection for the retracting and releasing shafts, it solves the safety hazards caused by the lack of power outage protection in the existing Wiya equipment and improves the safety performance of the equipment.

CN222922704UActive Publication Date: 2025-05-30HUBEI CROSSING NATURAL GRABEN MASCH TECH CO LTD
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Patent Information

Application Number
CN202421083083.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2025-05-30
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

Existing Wiai equipment usually does not have power outage protection, which may cause safety hazards due to braking when power is cut off in unexpected circumstances.

Method used

A power outage protection mechanism for Wiya equipment is designed, including a power outage protection component provided on the protective frame, which consists of a structure such as a retracting and retracting shaft, gear box, shaft pin plate, clamp, positioning gear and spring. When the device is powered on, the electric push rod extends to displace the clamp in opposite directions, the positioning gear loses its limit position, allowing structural linkage; when the power is off, the spring stretches to cause the limit tooth to be stuck on the positioning gear, limiting the transmission rod to rotate, thereby realizing power-off protection of the retracting and retracting shaft.

Benefits of technology

Through this power outage protection mechanism, the safety of the Wiya equipment is ensured during use, the safety hazards caused by accidental power outages are prevented, and the safety performance of the equipment is improved.

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Abstract

The utility model discloses a power-off protection mechanism of a wire device, and particularly relates to the technical field of power-off protection of the wire device, the power-off protection mechanism comprises a protection frame used for supporting, the protection frame is provided with a power-off protection assembly, the power-off protection assembly comprises a retracting and releasing shaft arranged in the protection frame, and one end of the retracting and releasing shaft is provided with a gear box. By arranging the power-off protection assembly, when the device is powered on, the output end of the electric push rod extends, so that the first shaft pin clamping rod and the second shaft pin clamping rod respectively rotate along the axis points of the joints of the first shaft pin clamping rod and the second shaft pin clamping rod with the shaft pin plate; when the device is powered off, an electric push rod loses power, a second shaft pin clamping rod and a first shaft pin clamping rod can reset through elasticity of a spring, limiting teeth are clamped on a positioning gear, a first transmission rod, a second transmission rod and a third transmission rod are limited, and therefore the function of power-off protection on a winding and unwinding shaft is achieved; and the safety of the device in use is ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of power-off protection of wire rope hoist equipment. More specifically, the utility model relates to a power-off protection mechanism for wire rope hoist equipment. Background Technique

[0002] Wire rope hoist equipment has different applications in different fields, so its definition is also different:

[0003] For example, in industrial production, wire rope hoist equipment is mainly used for operations such as polishing, grinding, and cleaning during the processing and production process. It has the characteristics of high efficiency, energy saving, stable operation, and long service life, and is widely used in industries such as metal processing, automobile manufacturing, and mold manufacturing, which can improve production efficiency, reduce energy consumption, and labor costs.

[0004] For example, in stage performances, wire rope hoist equipment is usually called "wire rope hoist" or "hanging steel wire", and is used to suspend actors or props into the air through steel cables to achieve various special effects such as flying and rotating. Wire rope hoist technology is often combined with performance forms such as dance, martial arts, acrobatics, and film and television martial arts to show spectacular stage effects. Stage wire rope hoists are usually divided into manual wire rope hoists and numerically controlled wire rope hoists. Among them, numerically controlled wire rope hoists rely on motors to drive the wire rope hoist equipment, enabling actors or props to complete actions such as lifting and lowering, moving forward and backward.

[0005] However, currently existing wire rope hoist equipment usually does not have the function of power-off protection, resulting in unexpected power-off of the device, causing the wire rope hoist equipment to brake, which is dangerous during use. Therefore, a power-off protection mechanism for wire rope hoist equipment is provided. Content of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a power-off protection mechanism for wire rope hoist equipment, aiming to solve the problems raised in the above background technique.

[0007] The utility model is implemented as follows. The utility model provides the following technical solution: A power-off protection mechanism for wire rope hoist equipment, including a protective frame for support, and a power-off protection component is arranged on the protective frame;

[0008] The power-off protection component includes a winding and unwinding shaft arranged in the protective frame, and a gear box is arranged at one end of the winding and unwinding shaft;

[0009] On one side of the surface of the gearbox, there is a pin plate mounted on the protective frame. A first pin clamping rod is movably connected to the pin plate through a pin. On one side of the first pin clamping rod, there is a second pin clamping rod mounted on the pin plate and movably connected to the pin plate through a pin. Electric push rods for driving the second pin clamping rod and the first pin clamping rod to displace towards each other are arranged at the tops of the second pin clamping rod and the first pin clamping rod, and springs for resetting the second pin clamping rod and the first pin clamping rod are sleeved outside the electric push rods.

[0010] Clamping plates are arranged on one side of the second pin clamping rod and the first pin clamping rod. A positioning gear is arranged between the two clamping plates. Limiting teeth are arranged on one side of the two clamping plates, and the limiting teeth are meshed with the positioning gear.

[0011] It can be seen that in the above technical solution, when the device is powered on, the output end of the electric push rod extends, causing the first pin clamping rod and the second pin clamping rod to rotate respectively along the center points of the connections between the first pin clamping rod and the second pin clamping rod and the pin plate. Subsequently, the two clamping plates displace towards each other, causing the positioning gear to lose its limit, making it easy for the third transmission rod to drive the winding and unwinding shaft to rotate when rotating, and facilitating the winding and unwinding of the wire rope.

[0012] Optionally, in a possible implementation manner, a first transmission rod is arranged at one end of the positioning gear and inside the gearbox. A second transmission rod meshed with the first transmission rod is arranged on one side of the first transmission rod. A third transmission rod meshed with the second transmission rod is arranged on one side of the second transmission rod. The third transmission rod is arranged at one end of the winding and unwinding shaft. Both ends of the winding and unwinding shaft are rotatably connected to bearing seats, and the bearing seats are installed at the bottom of the inner wall of the protective frame.

[0013] It can be seen that in the above technical solution, when the first pin clamping rod and the second pin clamping rod displace towards each other, it can also cause the spring to stretch, making it easy for the second pin clamping rod and the first pin clamping rod to be elastically reset by the spring itself when the device is powered off, and causing the limiting teeth to be stuck on the positioning gear to limit the first transmission rod, the second transmission rod, and the third transmission rod, thereby realizing the function of power-off protection for the winding and unwinding shaft and ensuring the safety of the device during use.

[0014] The technical effects and advantages of the present utility model:

[0015] By setting up a power-off protection component, compared with the prior art, the overall design is simple and the structure is reasonable. Through the corresponding cooperation of each structure, when the device is powered on, the output end of the electric push rod extends, causing the first pin clamping rod and the second pin clamping rod to rotate respectively along the center points of the connections between the first pin clamping rod and the second pin clamping rod and the pin plate. Subsequently, the two clamping plates move towards each other, causing the positioning gear to lose its limit, making it easy for the third transmission rod to drive the second transmission rod and the first transmission rod to rotate when rotating, and facilitating the linkage of each structure;

[0016] And when the first pin clamping rod and the second pin clamping rod move towards each other, it can also stretch the spring. When the device is powered off and the electric push rod loses power, the second pin clamping rod and the first pin clamping rod can be elastically reset by the spring itself, and the limiting teeth can be stuck on the positioning gear to limit the first transmission rod, the second transmission rod, and the third transmission rod, thereby realizing the function of power-off protection for the winding and unwinding shaft and ensuring the safety of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams and do not limit the actual dimensions of the products involved in the embodiments of the present disclosure, the actual processes of the methods, the actual timings of the signals, etc.

[0018] Figure 1 It is the front view of the overall structure of the present utility model.

[0019] Figure 2 It is the front view of the power-off protection component of the present utility model.

[0020] Figure 3 It is the front view of the first transmission rod, the second transmission rod, and the third transmission rod of the present utility model installed in the gearbox.

[0021] Figure 4 It is the side view of the power-off protection component of the present utility model.

[0022] The reference numerals are: 1. protective frame; 2. winding and unwinding shaft; 3. gearbox; 4. pin plate; 5. first pin clamping rod; 6. second pin clamping rod; 7. electric push rod; 8. spring; 9. clamping plate; 10. positioning gear; 11. first transmission rod; 12. second transmission rod; 13. third transmission rod; 14. bearing seat; 15. limiting tooth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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.

[0024] As shown in the attached Figures 1-4 A power failure protection mechanism for a wire rope hoist device. Through the power failure protection component provided on the protection frame 1, when the device is powered on, the output end of the electric push rod 7 extends, causing the first pin clamping rod 5 and the second pin clamping rod 6 to rotate respectively along the axis points of the connections between the first pin clamping rod 5 and the second pin clamping rod 6 and the pin plate 4. Subsequently, the two clamping plates 9 displace towards each other, causing the positioning gear 10 to lose its limit. It is easy for the third transmission rod 13 to drive the second transmission rod 12 and the first transmission rod 11 to rotate when rotating, facilitating the linkage of each structure. And when the first pin clamping rod 5 and the second pin clamping rod 6 displace towards each other, the spring 8 can also be stretched. When the device is powered off, it is easy for the electric push rod 7 to lose power, and the second pin clamping rod 6 and the first pin clamping rod 5 can be elastically reset by the spring 8 itself, and the limit tooth 15 can be stuck on the positioning gear 10 to limit the first transmission rod 11, the second transmission rod 12, and the third transmission rod 13, thereby realizing the function of power failure protection for the winding and unwinding shaft 2, ensuring the safety of the device during use, and the specific structural settings of the components are as follows;

[0025] The power failure protection component includes a winding and unwinding shaft 2 provided in the protection frame 1, and a gear box 3 is provided at one end of the winding and unwinding shaft 2;

[0026] On one side of the surface of the gear box 3, a pin plate 4 installed on the protection frame 1 is provided. The first pin clamping rod 5 is movably connected to the pin plate 4 through a pin. On one side of the first pin clamping rod 5, a second pin clamping rod 6 installed on the pin plate 4 and movably connected to the pin plate 4 through a pin is provided. Electric push rods 7 for driving the second pin clamping rod 6 and the first pin clamping rod 5 to displace towards each other are provided at the tops of the second pin clamping rod 6 and the second pin clamping rod 6, and a spring 8 for resetting the second pin clamping rod 6 and the first pin clamping rod 5 is sleeved outside the electric push rod 7;

[0027] Clamping plates 9 are provided on one side of each of the second pin clamping rod 6 and the first pin clamping rod 5. A positioning gear 10 is provided between the two clamping plates 9. Limit teeth 15 are provided on one side of each of the two clamping plates 9, and the limit teeth 15 are engaged with the positioning gear 10;

[0028] One end of the positioning gear 10 is provided with a first transmission rod 11 inside the gearbox 3. One side of the first transmission rod 11 is provided with a second transmission rod 12 meshing with the first transmission rod 11. One side of the second transmission rod 12 is provided with a third transmission rod 13 meshing with the second transmission rod 12. The third transmission rod 13 is arranged at one end of the retracting and extending shaft 2. Both ends of the retracting and extending shaft 2 are rotatably connected to bearing seats 14, and the bearing seats 14 are installed at the bottom of the inner wall of the protective frame 1.

[0029] During use according to the above structure, the staff installs the device at a designated position. The third transmission rod 13 is driven to rotate by an external motor. When the third transmission rod 13 rotates, it drives the retracting and extending shaft 2 to rotate, which is conducive to the retracting and extending of the wire rope hoist.

[0030] And when the device is powered on, the output end of the electric push rod 7 extends, causing the first pin clip rod 5 and the second pin clip rod 6 to rotate respectively along the center points of the connections between the first pin clip rod 5 and the second pin clip rod 6 and the pin plate 4. Subsequently, the two clamping plates 9 move towards each other, causing the positioning gear 10 to lose its limit. This facilitates the rotation of the second transmission rod 12 and the first transmission rod 11 when the third transmission rod 13 rotates, and is conducive to the linkage of each structure.

[0031] And when the first pin clip rod 5 and the second pin clip rod 6 move towards each other, it can also stretch the spring 8. When the device is powered off and the electric push rod 7 loses power, the second pin clip rod 6 and the first pin clip rod 5 can be elastically reset by the spring 8 itself, and the limit teeth 15 are stuck on the positioning gear 10 to limit the first transmission rod 11, the second transmission rod 12, and the third transmission rod 13, thereby realizing the function of power-off protection for the retracting and extending shaft 2 and ensuring the safety of the device during use.

[0032] Different from the prior art, the present application discloses a power-off protection mechanism for a wire rope hoist device. When the device is powered on, the output end of the electric push rod 7 extends, causing the first pin clip rod 5 and the second pin clip rod 6 to rotate respectively along the center points of the connections between the first pin clip rod 5 and the second pin clip rod 6 and the pin plate 4. Subsequently, the two clamping plates 9 move towards each other, causing the positioning gear 10 to lose its limit. This facilitates the rotation of the second transmission rod 12 and the first transmission rod 11 when the third transmission rod 13 rotates, and is conducive to the linkage of each structure. And when the first pin clip rod 5 and the second pin clip rod 6 move towards each other, it can also stretch the spring 8. When the device is powered off and the electric push rod 7 loses power, the second pin clip rod 6 and the first pin clip rod 5 can be elastically reset by the spring 8 itself, and the limit teeth 15 are stuck on the positioning gear 10 to limit the first transmission rod 11, the second transmission rod 12, and the third transmission rod 13, thereby realizing the function of power-off protection for the retracting and extending shaft 2 and ensuring the safety of the device during use.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A power failure protection mechanism for a wire rope device, comprising a protective frame (1) for supporting, characterized in that: The protection frame (1) is provided with a power-off protection component; The power-off protection component comprises a retractable shaft (2) arranged in a protection frame (1), and a gear box (3) is arranged at one end of the retractable shaft (2); A shaft pin plate (4) mounted on the protective frame (1) is provided on one side of the surface of the gear box (3); a first shaft pin clamping rod (5) is movably connected to the shaft pin plate (4) via a shaft pin; a second shaft pin clamping rod (6) mounted on the shaft pin plate (4) and movably connected to the shaft pin plate (4) via a shaft pin is provided on one side of the first shaft pin clamping rod (5); an electric push rod (7) for driving the second shaft pin clamping rod (6) and the first shaft pin clamping rod (5) to move in opposite directions is provided at the top of the second shaft pin clamping rod (6) and the second shaft pin clamping rod (6); and a spring (8) for resetting the second shaft pin clamping rod (6) and the first shaft pin clamping rod (5) is provided on the outer side of the electric push rod (7).

2. A power failure protection mechanism for a wire rope device according to claim 1, characterized in that: A clamping plate (9) is provided on one side of each of the second axle pin clamping rod (6) and the first axle pin clamping rod (5), and a positioning gear (10) is provided between the two clamping plates (9).

3. A power failure protection mechanism for a wire rope device according to claim 2, characterized in that: A first transmission rod (11) is provided at one end of the positioning gear (10) and is located in the gear box (3), and a second transmission rod (12) meshing with the first transmission rod (11) is provided on one side of the first transmission rod (11).

4. The power failure protection mechanism of the wire rope device according to claim 3 is characterized in that: A third transmission rod (13) meshing with the second transmission rod (12) is provided on one side of the second transmission rod (12); the third transmission rod (13) is provided at one end of the retractable shaft (2).

5. The power failure protection mechanism of the wire rope device according to claim 1 is characterized in that: Both ends of the retractable shaft (2) are rotatably connected to bearing seats (14), and the bearing seats (14) are mounted on the bottom of the inner wall of the protective frame (1).

6. The power failure protection mechanism of the wire rope device according to claim 2, characterized in that: One side of the two clamping plates (9) is provided with a limiting tooth (15), and the limiting tooth (15) is meshed with the positioning gear (10).