Freight electric hoist protection device
By designing a freight electric hoist protection device that uses hanging ring to press and break the stroke switch, the operation accident problem caused by forgetting to pick up and place the safety rope is solved, and the operation of the electric hoist is prohibited without removing the safety rope and hanging ring is achieved. , thus ensuring safety.
Patent Information
- Application Number
- CN202420318124.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-02-20
AI Technical Summary
When existing freight electric hoists hang safety ropes at the exit of each floor when the cage reaches the exit of each floor, improper operation of personnel may lead to forgetting to pick up and place the safety ropes, causing the risk of accidents.
A freight electric hoist protection device is designed, which presses the stroke switch inside the fixed block through the weight of the hanging ring, and the control circuit disconnects the main power of the electric hoist, so that the operation of the electric hoist is prohibited without removing the safety rope and the hanging ring. gourd.
It effectively prevents electric hoist operation accidents caused by forgetting to pick up and place safety ropes, and ensures the safety of personnel and equipment.
Smart Images
Figure CN222476018U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric hoists, in particular to a protective device for a freight electric hoist. Background Art
[0002] Electric hoist is a special lifting equipment that can be used in the operation and maintenance of overhead cranes, gantry cranes and wind turbines. Electric hoists are mainly divided into: drive motor, gearbox, chain assembly, clutch and other parts. The rotor of the conventional drive motor is a solid shaft. This traditional transmission method clutch is usually installed on the second shaft or subsequent shaft end of the gearbox, and some are arranged between the motor and the gearbox.
[0003] Some existing freight electric hoists use safety ropes to prevent the cage from falling. The safety ropes are hung on hooks when the cage reaches the exit of each floor to prevent the elevator from falling. However, there is a possibility of accidents caused by operators forgetting to take or put the safety ropes. Utility Model Content
[0004] The purpose of the utility model is to provide a freight electric hoist protection device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a freight electric hoist protection device, comprising an electric hoist body and a cage, the cage being arranged on the outside of the electric hoist body, and also comprising an anti-falling part arranged on the outside of the cage for improving the safety of the cage, a hanging ring arranged on the outside of the anti-falling part, a wall arranged on the outside of the cage, a fixing part arranged on the outside of the wall for fixing the hanging ring, and a travel switch arranged on the outside of the fixing part for controlling the electric hoist body.
[0006] Preferably, the cage includes a cage frame arranged at the lower part of the electric hoist body, and a protective rod fixed on the outside of the cage frame.
[0007] Preferably, the anti-falling device includes a fixing plate fixed to the outside of the cage frame, a safety rope fixed to the outside of the fixing plate, and a ring fixed to the outside of the safety rope.
[0008] Preferably, the hanging ring comprises a semicircular ring, a connecting sleeve fixed on the outside of the semicircular ring, and an insert rod threadedly connected to the inside of the connecting sleeve, and the ring is sleeved on the outside of the insert rod.
[0009] Preferably, the fixing member includes a reinforcing plate fixed to the outside of the wall, a fixing block fixed to the outside of the reinforcing plate, and a slot provided inside the fixing block.
[0010] Preferably, the travel switch is fixedly connected inside the fixed block.
[0011] Preferably, the fixing member further comprises a support frame fixed to the bottom of the fixing block, and the travel switch is fixed inside the support frame.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] The utility model utilizes the weight of the hanging ring to press the travel switch inside the fixed block, and disconnects the main power supply of the electric hoist body through the control circuit, so that personnel cannot operate the electric hoist body without removing the safety rope and the hanging ring, thereby ensuring the safety of personnel and equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A structural schematic diagram of a preferred embodiment of the electric freight hoist protection device provided by the utility model;
[0015] Figure 2 A schematic diagram of the hanging ring structure provided by the utility model;
[0016] Figure 3 A schematic diagram of the structure of the fixing member provided by the utility model;
[0017] Figure 4 This is a schematic diagram of the fixed block and travel switch structure provided by the utility model.
[0018] In the figure: 1. electric hoist body; 2. hoist cage; 201. cage frame; 202. protective rod; 3. anti-falling part; 301. fixing plate; 302. safety rope; 303. ring; 4. hanging ring; 401. semicircular ring; 402. connecting sleeve; 403. plug rod; 5. wall; 6. fixing part; 601. reinforcement plate; 602. fixing block; 603. slot; 604. support frame; 7. travel switch. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-4As shown, the freight electric hoist protection device includes an electric hoist body 1 and a cage 2, the cage 2 is arranged on the outside of the electric hoist body 1, and also includes an anti-falling part 3 arranged on the outside of the cage 2 to improve the safety of the cage 2, a hanging ring 4 arranged on the outside of the anti-falling part 3, a wall 5 arranged on the outside of the cage 2, a fixing part 6 arranged on the outside of the wall 5 for fixing the hanging ring 4, and a travel switch 7 arranged on the outside of the fixing part 6 for controlling the electric hoist body 1.
[0021] It should be noted that the electric hoist body 1 drives the cage 2 to rise and fall for cargo transportation operations, and is connected by the anti-falling part 3 and the hanging ring 4, and fixed on the fixing part 6 to control the travel switch 7, so as to provide safety protection for the cage 2 and avoid the risk of the cage 2 falling.
[0022] refer to Figure 1 and Figure 2 As shown, the cage 2 includes a cage frame 201 arranged at the lower part of the electric hoist body 1, and a protective rod 202 fixed on the outside of the cage frame 201; the anti-falling member 3 includes a fixing plate 301 fixed on the outside of the cage frame 201, a safety rope 302 fixed on the outside of the fixing plate 301, and a ring 303 fixed on the outside of the safety rope 302; the hanging ring 4 includes a semicircular ring 401, a connecting sleeve 402 fixed on the outside of the semicircular ring 401, and a connecting sleeve 403 threadedly connected to the connecting sleeve 401. 2, and the ring 303 is sleeved on the outside of the plug rod 403; the goods are placed inside the cage frame 201, and the protection rod 202 is used to improve the strength of the cage frame 201. One end of the safety rope 302 is fixed to the outside of the cage 2 through the fixing plate 301, and the other end is fixed to the outside of the plug rod 403 through the ring 303. The plug rod 403 is limited inside the connecting sleeve 402, and then the semicircular ring 401 is hung on the outside of the fixing member 6 to prevent the cage 2 from falling.
[0023] refer to Figure 1 , Figure 3 and Figure 4 As shown, the fixing member 6 includes a reinforcing plate 601 fixed to the outside of the wall 5, a fixing block 602 fixed to the outside of the reinforcing plate 601, and a slot 603 opened in the fixing block 602; the travel switch 7 is fixedly connected to the inside of the fixing block 602; the fixing member 6 also includes a support frame 604 fixed to the bottom of the fixing block 602, the travel switch 7 is fixed to the inside of the support frame 604, and the hanging ring 4 is hung in the inside of the slot 603. The weight of the hanging ring 4 is used to press the travel switch 7 in the fixing block 602, and the main power supply of the electric hoist body 1 is disconnected through the control circuit, so that without removing the safety rope 302 and the hanging ring 4, personnel cannot operate the electric hoist body 1 to work, thereby ensuring the safety of personnel and equipment.
[0024] Working principle: One end of the safety rope 302 is fixed to the outside of the cage 2 through the fixing plate 301, and the other end is fixed to the outside of the plug rod 403 through the ring 303. The plug rod 403 is limited inside the connecting sleeve 402, and then the semicircular ring 401 is hung inside the slot 603. The weight of the hanging ring 4 is used to press the travel switch 7 inside the fixed block 602, and the main power supply of the electric hoist body 1 is disconnected through the control circuit, so that personnel cannot operate the electric hoist body 1 without removing the safety rope 302 and the hanging ring 4, thereby ensuring the safety of personnel and equipment.
[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A freight electric hoist protective device, comprising an electric hoist body (1) and a hoist cage (2), characterized in that: The cage (2) is arranged on the outside of the electric hoist body (1), and also includes an anti-falling component (3) arranged on the outside of the cage (2) for improving the safety of the cage (2), a hanging ring (4) arranged on the outside of the anti-falling component (3), a wall (5) arranged on the outside of the cage (2), a fixing component (6) arranged on the outside of the wall (5) for fixing the hanging ring (4), and a travel switch (7) arranged on the outside of the fixing component (6) for controlling the electric hoist body (1).
2. The electric freight hoist protection device according to claim 1 is characterized in that: The cage (2) comprises a cage frame (201) arranged at the lower part of the electric hoist body (1), and a protection rod (202) fixed on the outside of the cage frame (201).
3. The electric freight hoist protection device according to claim 2 is characterized in that: The anti-falling device (3) comprises a fixing plate (301) fixed on the outside of the cage frame (201), a safety rope (302) fixed on the outside of the fixing plate (301), and a ring (303) fixed on the outside of the safety rope (302).
4. The electric freight hoist protection device according to claim 3 is characterized in that: The hanging ring (4) comprises a semicircular ring (401), a connecting sleeve (402) fixed on the outside of the semicircular ring (401), and an insert rod (403) threadedly connected to the inside of the connecting sleeve (402), and the sleeve ring (303) is sleeved on the outside of the insert rod (403).
5. The electric freight hoist protection device according to claim 1 is characterized in that: The fixing member (6) comprises a reinforcing plate (601) fixed to the outside of the wall (5), a fixing block (602) fixed to the outside of the reinforcing plate (601), and a slot (603) provided inside the fixing block (602).
6. The electric freight hoist protection device according to claim 5, characterized in that: The travel switch (7) is fixedly connected inside the fixed block (602).
7. The electric freight hoist protection device according to claim 5, characterized in that: The fixing member (6) further comprises a support frame (604) fixed to the bottom of the fixing block (602), and the travel switch (7) is fixed inside the support frame (604).