Mechanical stopping device for traction type household platform elevator

Abstract

The utility model discloses a mechanical stopping device used for a traction type household platform elevator, the mechanical stopping device is installed between a main guide rail and an auxiliary guide rail of the platform elevator, the mechanical stopping device comprises a fixing assembly, a limiting plate and a rubber assembly, the fixing assembly is fixed on the main guide rail, the limiting plate is movably connected with the fixing assembly, and the rubber assembly is connected with the limiting plate. The rubber assembly is fixed to the car frame, and when the car frame moves downwards, the rubber assembly abuts against the limiting plate in the horizontal state. The mechanical stopping device is simple in structure and convenient to operate, and the problem that an existing mechanical stopping device is not high in adaptability with a platform elevator is solved.

Description

Technical Field

[0001] This invention belongs to the field of elevator-related technology, specifically, it relates to a mechanical stopping device for a traction-type home platform elevator. Background Technology

[0002] Compared to conventional elevators, traction platform elevators have a more compact structure and are characterized by the absence of a car and car top structure, with maintenance-required components typically concentrated on one side of the shaft. Currently, common mechanical stopping devices for conventional elevators are either installed in the pit or on the car top. Pit-mounted devices require significant space, while platform elevators have shallow pits and a compact structure, leaving no room for such devices. Car top-mounted devices require personnel to access the car top for operation, but platform elevators lack a car top structure. Due to these limitations, mechanical stopping devices for traction platform elevators are often externally mounted. This means the device is placed inside the shaft from the outside only during maintenance and removed when not in use. However, this method presents challenges such as complex operation and the risk of loss or access by unqualified personnel. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a mechanical stopping device for traction-type home platform elevators. This device has a simple structure and is easy to operate, avoiding the problem of poor compatibility between existing mechanical stopping devices and platform elevators.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mechanical stopping device for a traction-type home platform elevator. The mechanical stopping device is installed between the main and auxiliary guide rails of the platform elevator and includes a fixing component, a limiting plate, and a rubber component. The fixing component is fixed on the main guide rail, the limiting plate is movably connected to the fixing component, and the rubber component is fixed to the car frame. When the car frame moves downward, the rubber component abuts against the limiting plate, which is in a horizontal state.

[0005] Preferably, it also includes a micro switch, which is fixed on a fixed component and electrically connected to the elevator's maintenance circuit and normal circuit;

[0006] When the limit plate is in a vertical position, one side of the limit plate abuts against the micro switch, triggering the micro switch to connect the maintenance circuit and disconnect the normal circuit; when the limit plate is in a horizontal position, the micro switch resets to disconnect the maintenance circuit and connect the normal circuit.

[0007] Preferably, the fixing component includes a base plate and a fixing plate, the base plate is fixed on the main guide rail, the fixing plate is fixed on the base plate, and the limiting plate is disposed between the base plate and the fixing plate, and the limiting plate is movably connected to the fixing plate.

[0008] Preferably, the fixing plate has a first guide groove and a second guide groove, and the limiting plate has a first guide shaft and a second guide shaft, the first guide shaft and the second guide shaft being matched with the first guide groove and the second guide groove, respectively.

[0009] Preferably, the base plate has a first guide hole and a second guide hole, which are respectively matched with a first guide shaft and a second guide shaft.

[0010] Preferably, the rubber assembly includes rubber and a rubber seat, the rubber seat is fixed to the car frame, and the rubber is disposed at the bottom end of the rubber seat.

[0011] Preferably, the base plate is a U-shaped plate.

[0012] Preferably, the base plate is fixed to the main guide rail by clamps or bolts, and the fixing plate is fixed to the base plate by fasteners.

[0013] Preferably, the mechanical blocking device is installed in a position that ensures that the bottom of the car has a preset accommodating space when the rubber assembly abuts against the limiting plate.

[0014] Preferably, the range of the preset accommodating space is greater than or equal to 0.5m*0.6m*1.0m.

[0015] Compared with the prior art, the beneficial effects of this utility model include:

[0016] (1) This utility model provides a mechanical stopping device for traction-type home platform elevators. The device mainly uses a combination of fixed components, limit plates and rubber components to stop the car frame and elevator. The device is small in size, simple in structure and low in manufacturing cost. Maintenance personnel can control the limit plate to be horizontal or vertical with one hand, so as to quickly switch the state of the mechanical stopping device. The operation is simple, thus avoiding the disadvantages of the existing external mechanical stopping devices being complicated to operate and difficult to handle. It solves the problem of poor compatibility between mechanical stopping devices and platform elevators in the prior art.

[0017] (2) This utility model uses a micro switch to electrically connect with the elevator's maintenance circuit and normal circuit to verify the working and non-working states of the mechanical blocking device. In the non-working state, the micro switch is in the triggered state due to the pressure of the limit plate. In the working state, the limit plate cancels the contact with the micro switch, causing the micro switch to reset to the non-triggered state, thereby improving the reliability of the device.

[0018] (3) This utility model achieves the movable connection between the limiting plate and the fixed component through the first guide shaft and the second guide shaft on the limiting plate, the first guide groove and the second guide groove on the fixed plate, and the first guide hole and the second guide hole on the bottom plate, so that the working state of the device can be flexibly switched, the operation is very convenient, the practicality is strong and the reliability is high. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the mechanical stopping device for a traction-type home platform elevator according to this utility model.

[0020] Figure 2 This is a schematic diagram showing the state of the mechanical stopping device of the present invention for a traction-type home platform elevator during normal elevator operation.

[0021] Figure 3 This is a schematic diagram of the mechanical stopping device of the present invention for a traction-type home platform elevator during elevator maintenance.

[0022] Figure 4 This is a schematic diagram showing the installation position of the mechanical stopping device for a traction-type home platform elevator according to this utility model.

[0023] Among them, 1 is a rubber component, 2 is a limiting plate, 201 is a first guide shaft, 202 is a second guide shaft, 3 is a fixing plate, 301 is a first guide groove, 302 is a second guide groove, 4 is a base plate, 5 is a micro switch, 6 is a main guide rail, and 7 is a car frame. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0025] Example

[0026] like Figure 1 The diagram shows the overall structure of a mechanical stopping device for a traction-type home platform elevator. The mechanical stopping device is installed between the main and auxiliary guide rails of the platform elevator and includes a fixing component, a limiting plate, and a rubber component. The fixing component is fixed to the main guide rail, the limiting plate is movably connected to the fixing component, and the rubber component is fixed to the car frame. When the car frame moves downward, the rubber component abuts against the limiting plate, which is in a horizontal position.

[0027] Specifically, this utility model provides a mechanical stopping device for a traction-type home platform elevator. This device is installed on the side of the component to be inspected in the platform elevator, with the specific installation location as follows: Figure 4As shown. Personnel can use the device and perform maintenance on its components without entering the shaft (provided there is sufficient maintenance space on the outside of the shaft on the side of the component to be maintained, and it can be opened), making it suitable for platform elevators.

[0028] In this embodiment, the limiting plate is connected to the guide rail via a fixing component. The movable connection between the limiting plate and the fixing component ensures that the limiting plate can rotate between the vertical and horizontal directions. The elevator is stopped by the contact between the limiting plate and the rubber component fixed to the car frame. Specifically, when the elevator is running normally, the device is in a non-working state: at this time, the limiting plate is restricted to the vertical direction (parallel to the guide rail). When the elevator enters the maintenance state, the device is in a working turntable: maintenance personnel manually move the limiting plate to the horizontal direction (perpendicular to the guide rail). When the elevator runs to the lower maintenance stopping height, the rubber component installed on the car frame will contact the limiting plate, at which point the elevator can no longer continue running and stops, thereby achieving the purpose of protecting the safety of maintenance personnel.

[0029] Because it needs to match the guide rail, the fixing components, limiting plates and rubber components used in this utility model are all small-sized parts. Therefore, the overall size of the device is small and lightweight. It can be installed between the main and auxiliary guide rails of common backpack frame structure platform elevators. The structure is simple and the manufacturing cost is low.

[0030] In addition, maintenance personnel can control the status of the limit plate with one hand and quickly switch the status of the device. The operation is simple and convenient, thus avoiding the disadvantages of the existing external mechanical stopping device being complicated to operate and inconvenient to handle, and solving the problem of poor compatibility between the existing mechanical stopping device and the platform elevator.

[0031] The mechanical stopping device also includes a micro switch, which is fixed to the fixed assembly and electrically connected to the elevator's maintenance circuit and normal circuit.

[0032] When the limit plate is in a vertical position, one side of the limit plate abuts against the micro switch, triggering the micro switch to connect the maintenance circuit and disconnect the normal circuit; when the limit plate is in a horizontal position, the micro switch resets to disconnect the maintenance circuit and connect the normal circuit.

[0033] Specifically, in this embodiment, a microswitch is electrically connected to the elevator's maintenance circuit and normal circuit (the normal circuit is also called the express running circuit) to verify the working and non-working states of the mechanical stopping device, thereby improving the device's reliability. For example... Figure 2 As shown, when the device is not in operation: the limit plate is in a vertical position, the micro switch is triggered by the pressure of the limit plate, the maintenance circuit is open at the switch, the normal circuit is closed, and the elevator can operate normally. Figure 3As shown, when the device is in operation: before maintenance personnel perform maintenance operations, the elevator must be called to a location other than the ground floor and enter maintenance mode. At the ground floor, the personnel open the door and move the limit plate to the horizontal position. At this time, the microswitch automatically resets due to disengagement from the limit plate, returning to the non-triggered state. The normal circuit is then disconnected, the maintenance circuit is connected, and the elevator can be operated for maintenance. In this embodiment, a commonly available microswitch, model Omron Z-15GQ-B, can be used. In other embodiments, other microswitches capable of achieving similar functions can also be used.

[0034] The fixing component includes a base plate and a fixing plate. The base plate is fixed on the main guide rail, the fixing plate is fixed on the base plate, and the limiting plate is disposed between the base plate and the fixing plate, and the limiting plate is movably connected to the fixing plate.

[0035] Specifically, in this embodiment, the base plate is fixed to the main guide rail by means of clamps or springs, and the fixing plate is fixed to the base plate by fasteners. The base plate is a U-shaped plate, such as... Figure 1 As shown, the middle part of the base plate is connected to the guide rail, and the two sides of the base plate wrap around the edge of the guide rail. This arrangement improves the stability of the connection between the base plate and the guide rail.

[0036] The fixing plate has a first guide groove and a second guide groove, and the limiting plate has a first guide shaft and a second guide shaft, which are respectively matched with the first guide groove and the second guide groove.

[0037] Specifically, such as Figure 1-3 As shown, by manually operating the first guide shaft on the limiting plate to rotate along the first guide groove, and simultaneously operating the second guide shaft to rotate along the second guide groove, the first and second guide grooves serve to restrict the movement of the limiting plate. When the rotation direction is clockwise, the limiting plate switches from a vertical to a horizontal direction. This arrangement not only connects the limiting plate to the fixed plate but also switches the working state of the device, making operation very convenient, practical, and reliable. In this embodiment, to make the rotation of the limiting plate smoother and more reliable, the base plate also has a first guide hole matching the first guide shaft and a second guide hole matching the second guide shaft. The first and second guide holes also serve to restrict the movement of the limiting plate.

[0038] The rubber assembly includes rubber and a rubber seat, with the rubber seat fixed to the car frame and the rubber located at the bottom end of the rubber seat.

[0039] Specifically, this invention stops the elevator through the contact between the rubber component and the limiting plate, where the rubber acts as a buffer to reduce wear caused by the contact between the two.

[0040] The installation position of the mechanical blocking device ensures that when the rubber component abuts against the limiting plate, the bottom of the car has a preset accommodating space.

[0041] Specifically, when personnel perform maintenance operations, they may be located under the car floor. Therefore, the installation position of this device should ensure that there is still sufficient safety space under the car floor after the elevator is stopped in the working state. According to GB / T21739-2008 5.4.1, it should be ensured that when the device is in the working state, i.e., when the rubber assembly installed on the car frame contacts the limit plate and stops the elevator, there is sufficient safety space under the car floor (i.e.,...). Figure 4 The preset accommodating space of the car bottom area is greater than or equal to 0.5m*0.6m*1.0m.

[0042] The above-described specific embodiments are preferred embodiments of this utility model and are not intended to limit this utility model. Any other changes or equivalent substitutions made without departing from the technical solution of this utility model are included within the protection scope of this utility model.

Claims

1. A mechanical stopping device for a traction-type home platform elevator, characterized in that, The mechanical stopping device is installed between the main and auxiliary guide rails of the platform elevator and includes a fixing component, a limiting plate and a rubber component. The fixing component is fixed on the main guide rail, the limiting plate is movably connected to the fixing component, and the rubber component is fixed to the car frame. When the car frame moves downward, the rubber component abuts against the limiting plate which is in a horizontal position.

2. The mechanical stopping device for a traction-type home platform elevator according to claim 1, characterized in that, It also includes a micro switch, which is fixed on a fixed assembly and electrically connected to the elevator's maintenance circuit and normal circuit; When the limit plate is in a vertical position, one side of the limit plate abuts against the micro switch, triggering the micro switch to connect the maintenance circuit and disconnect the normal circuit; when the limit plate is in a horizontal position, the micro switch resets to disconnect the maintenance circuit and connect the normal circuit.

3. A mechanical stopping device for a traction-type home platform elevator according to claim 1, characterized in that, The fixing component includes a base plate and a fixing plate. The base plate is fixed on the main guide rail, the fixing plate is fixed on the base plate, and the limiting plate is disposed between the base plate and the fixing plate, and the limiting plate is movably connected to the fixing plate.

4. A mechanical stopping device for a traction-type home platform elevator according to claim 3, characterized in that, The fixing plate has a first guide groove and a second guide groove, and the limiting plate has a first guide shaft and a second guide shaft, which are respectively matched with the first guide groove and the second guide groove.

5. A mechanical stopping device for a traction-type home platform elevator according to claim 4, characterized in that, The base plate has a first guide hole and a second guide hole, which are respectively matched with a first guide shaft and a second guide shaft.

6. A mechanical stopping device for a traction-type home platform elevator according to claim 1, characterized in that, The rubber assembly includes rubber and a rubber seat, with the rubber seat fixed to the car frame and the rubber located at the bottom end of the rubber seat.

7. A mechanical stopping device for a traction-type home platform elevator according to claim 3, characterized in that, The base plate is a U-shaped plate.

8. A mechanical stopping device for a traction-type home platform elevator according to claim 3, characterized in that, The base plate is fixed to the main guide rail by clamps or bolts, and the fixing plate is fixed to the base plate by fasteners.

9. A mechanical stopping device for a traction-type home platform elevator according to claim 1, characterized in that, It also includes that the installation position of the mechanical blocking device ensures that when the rubber assembly abuts against the limiting plate, the bottom of the car has a preset accommodating space.

10. A mechanical stopping device for a traction-type home platform elevator according to claim 9, characterized in that, The range of the preset accommodating space is greater than or equal to 0.5m*0.6m*1.0m.

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