Mechanical stopping device on elevator

Abstract

A mechanical stopping device on an elevator comprises a car body, a stopping assembly and a sensing assembly. The stopping assembly comprises a supporting frame, a jacking column and a bearing frame. The supporting frame is hollow, and an opening is formed in the end, away from the car body, of the supporting frame. The two opposite side walls of the end, away from the car body, of the supporting frame are arranged in a protruding mode, and a supporting rod used for erecting the top column is fixedly arranged between the two protruding side walls in a penetrating mode. According to the mechanical stopping device on the elevator, the jacking column is clamped in the supporting frame, so that the situation that the elevator continues to rise to the top of an elevator channel due to the out-of-control situation and the like is avoided, the elevator continues to rise, potential safety hazards in the elevator maintenance operation are eliminated, and the personal safety of maintenance personnel is guaranteed. The first safety switch and the second safety switch are connected with a power source of the elevator in series, so that a safety loop is formed, it is guaranteed that the elevator is powered off when maintenance personnel lift the top column, and the personal safety of the maintenance personnel is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of elevator maintenance equipment technology, and in particular to a mechanical stopping device for elevators. Background Technology

[0002] An elevator is a power-driven electromechanical device that uses a rigid guide rail cabin or steps running along a fixed route to move people or goods vertically or horizontally. It includes passenger (freight) elevators, escalators, and moving walkways. Conventionally, regardless of their drive method, elevators are considered a general term for vertical transportation tools within buildings. Vertical elevators require the process of ascending or descending. When maintaining a vertical elevator, personnel often need to be at the top to perform repairs. Therefore, there is a possibility of elevator malfunction or accidental activation of switches, causing the elevator to continue ascending and potentially injuring maintenance personnel. Utility Model Content

[0003] In view of this, the present invention provides a mechanical stopping device for elevators to solve the above problems.

[0004] A mechanical stopping device for an elevator includes a car body, a stopping assembly disposed at the top of the car body, and a sensing assembly disposed on one side of the stopping assembly. The stopping assembly includes a support frame disposed at the top of the car body, a top column disposed on the support frame, and a support bracket disposed on one side of the support frame. The support frame is hollow, with an opening at its end away from the car body. Two opposing side walls of the support frame at the end away from the car body protrude, and a support rod for supporting the top column is fixedly inserted between the two protruding side walls. A groove is formed at the end of the top column near the support frame, through which the support rod slides.

[0005] Furthermore, the sensing component includes a first safety switch fixedly disposed on one side of the support frame, a second safety switch disposed on one side of the support frame, a first folding plate fixedly disposed on the top column near the end of the first safety switch, and a second folding plate disposed on the top column near the end of the second safety switch.

[0006] Furthermore, the top column is made of steel plate and is in the shape of a long, hollow rectangle.

[0007] Furthermore, the four outer sidewalls at the end of the top column are in gap contact with the four inner sidewalls of the support frame.

[0008] Compared with existing technologies, the mechanical stopping device for elevators provided by this utility model prevents the elevator from continuing to rise to the top of the elevator shaft due to loss of control or other reasons by locking the top column in the support frame. This eliminates safety hazards during elevator maintenance operations and ensures the personal safety of maintenance personnel. The first and second safety switches are connected in series with the elevator's power supply to form a safety circuit, ensuring that the elevator is powered off when maintenance personnel lift the top column, thereby further protecting their personal safety. Attached Figure Description

[0009] Figure 1 A schematic diagram of the mechanical stop device on the elevator provided by this utility model.

[0010] Figure 2 for Figure 1 A schematic diagram showing the state of the mechanical stop device on the elevator when the top column is horizontal.

[0011] Figure 3 for Figure 1 A schematic diagram showing the state of the top column of the mechanical stop device on the elevator when it is upright. Detailed Implementation

[0012] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0013] like Figure 1 The diagram shows a structural schematic of the mechanical stopping device for an elevator provided by this utility model. The mechanical stopping device includes a car body 10, a stopping component 20 disposed at the top of the car body 10, and a sensing component 30 disposed on one side of the stopping component 20. It is conceivable that the stopping device for the elevator also includes other functional modules, such as a screw assembly module and a signal transmission module, which are technologies known to those skilled in the art and will not be described in detail here.

[0014] The car body 10 is a box-shaped space on the elevator, used to carry and transport people and goods. The structure and function of the car body 10 itself are existing technologies and will not be described in detail here.

[0015] Please refer to the following: Figure 2 and Figure 3 The blocking component 20 includes a support frame 21 disposed on the top of the car body 10, a top column 22 disposed on the support frame 21, and a support bracket 23 disposed on one side of the support frame 21.

[0016] The support frame 21 is hollow, with an opening at the end away from the car body 10, so that the top column 22 can be rotated vertically and then lowered into the support frame 21. Two opposite side walls of the support frame 21 at the end away from the car body 10 protrude, and a support rod 24 for supporting the top column 22 is fixedly inserted between the two protruding side walls.

[0017] The top column 22 is made of steel plate and is a long, hollow rectangular shape. This design allows it to withstand the pressure from the car body 10 and the top of the elevator shaft while reducing its own weight, making it easier for staff to support. The four outer sidewalls of the top column 22 are in close contact with the four inner sidewalls of the support frame 21, allowing it to be secured in the support frame 21 when upright. A groove 25 is provided at one end of the top column 22 near the support frame 21. The support rod 24 passes through the groove 25 and slides within it to support the top column 22.

[0018] When maintenance personnel need to perform maintenance work on the elevator at the top, they only need to lift the top column 22 and lower it so that it is locked in the support frame 21. This prevents the elevator from continuing to rise to the top of the elevator shaft due to loss of control or other reasons, which could cause injury to the maintenance personnel. This eliminates safety hazards in elevator maintenance work and ensures the personal safety of maintenance personnel.

[0019] The support frame 23 is used to support the end of the top column 22 away from the support frame 21 when the top column 22 is in a horizontal position.

[0020] The sensing component 30 includes a first safety switch 31 disposed on one side of the support frame 21, a second safety switch 32 disposed on one side of the support frame 23, a first folding plate 33 disposed on the top column 22 near the end of the first safety switch 31, and a second folding plate 34 disposed on the top column 22 near the end of the second safety switch 32.

[0021] The first and second safety switches 31 and 32 are contact switches, connected in parallel and in series with the elevator's control power supply, thus forming a safety circuit. A safety circuit consists of a safety switch installed in each safety component of the elevator, connected in series to control a safety relay. The elevator can only operate when all safety switches are closed, causing the safety relay to engage. Therefore, the elevator can only operate when any one of the first or second safety switches 31 or 32 is closed.

[0022] The first and second folding plates 33 and 34 are fixedly installed on the top column 22. When the top column 22 is in a horizontal position, the second folding plate 34 abuts against the contact of the second safety switch 32, so that the elevator is powered on and runs normally.

[0023] When maintenance personnel are inspecting the elevator from the top, during the process of the top column 22 changing from a horizontal to a vertical position, the first and second safety switches 31 and 32 are disconnected to cut off the power to the elevator, thereby preventing the elevator from lifting and lowering, and ensuring the personal safety of the maintenance personnel.

[0024] When the top column 22 is in the upright position, the first folding plate 33 abuts against the contact of the first safety switch 32, so that the elevator can continue to operate during maintenance work to test its lifting function. Furthermore, the upright position of the top column 22 ensures that the elevator, in the event of a malfunction, will not continue to rise to the top of the elevator shaft and cause injury to maintenance personnel, thus preventing physical harm to maintenance workers.

[0025] Compared with existing technologies, the mechanical stopping device for elevators provided by this utility model prevents the elevator from continuing to rise when it reaches the top of the elevator shaft due to loss of control or other reasons by locking the top column 22 in the support frame 21. This eliminates safety hazards during elevator maintenance operations and ensures the personal safety of maintenance personnel. The first and second safety switches 31 and 32 are connected in series with the elevator's power supply to form a safety circuit, ensuring that the elevator is powered off when maintenance personnel lift the top column, thereby further protecting their personal safety.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A mechanical blocking device on an elevator, characterized in that: The mechanical stopping device on the elevator includes a car body, a stopping assembly disposed at the top of the car body, and a sensing assembly disposed on one side of the stopping assembly. The stopping assembly includes a support frame disposed at the top of the car body, a top column disposed on the support frame, and a support bracket disposed on one side of the support frame. The support frame is hollow and has an opening at the end away from the car body. Two opposite side walls of the support frame at the end away from the car body protrude, and a support rod for supporting the top column is fixedly inserted between the two protruding side walls. A sliding groove is opened at the end of the top column near the support frame, and the support rod slides through the sliding groove.

2. Mechanical blocking device in an elevator according to claim 1, characterized in that The sensing component includes a first safety switch fixedly disposed on one side of the support frame, a second safety switch disposed on one side of the support frame, a first folding plate fixedly disposed on the top column near the end of the first safety switch, and a second folding plate disposed on the top column near the end of the second safety switch.

3. The mechanical stopping device on the elevator according to claim 1, characterized in that: The top column is made of steel plate and is a long, hollow rectangular shape.

4. The mechanical stopping device on the elevator according to claim 1, characterized in that: The four outer sidewalls at the end of the top column are in gap contact with the four inner sidewalls of the support frame.

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