Fixing device for radio reflecting plate of photoelectric switch of mine shaft elevator
By adopting a combination design of a fixed main body, main pin, and cotter pin in the mine shaft hoist, the problem of difficult disassembly of traditional radio reflectors has been solved, enabling simple disassembly and safe maintenance of radio reflectors.
Patent Information
- Application Number
- CN202520285731.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Traditional photoelectric switch radio reflector fixing devices are difficult to disassemble and maintain in mine shaft hoists, and the harsh shaft conditions result in high risks associated with screw removal.
The design employs a combination of a fixed main body, a main pin, and a cotter pin. The radio reflector is fixed using a track and hole structure, avoiding the traditional screw fixing method and simplifying the disassembly process.
This enables simple assembly and disassembly of the radio reflector, reducing the high risks associated with wellbore maintenance and improving the convenience and safety of repairs.
Smart Images

Figure CN223836877U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mining and metallurgical technology, specifically relating to a fixing device for a photoelectric reflector plate of a photoelectric switch in a mine shaft hoist. Background Technology
[0002] As a crucial component of a mine, the safe and stable operation of the hoisting system is of paramount importance to the safe development of the mine. Due to the limitations of magnetic switches in detecting upper and lower edges, photoelectric switches are commonly used for stopping vertical shaft hoists to ensure precise stopping. However, photoelectric switches require fixing a radio reflector to the hoisting container body. The harsh conditions in the shaft, with frequent rockfalls, cause frequent damage to the radio reflector, necessitating frequent replacements by maintenance workers. Traditionally, the radio reflector is fixed by welding a base plate to the hoisting container body and then securing the reflector to the base plate with screws. During replacement, the harsh shaft conditions and the long-term corrosion of the base plate fixing screws make disassembly difficult, increasing the difficulty and risk of the operation. Utility Model Content
[0003] The purpose of this utility model is to address the problems existing in the prior art by providing a fixing device for the photoelectric switch radio reflector plate of a mine shaft hoist, which solves the problems of difficult screw disassembly and high maintenance difficulty of the existing photoelectric switch radio reflector plate fixing device.
[0004] Therefore, the present invention adopts the following technical solution: a fixing device for a photoelectric switch radio reflector plate of a mine shaft hoist, comprising a fixing body, tracks opened inside both sides of the fixing body, a radio reflector plate slidably arranged in the tracks, holes opened at the bottom of both sides of the fixing body, a main pin inserted in the holes, and a cotter pin inserted on the main pin.
[0005] Furthermore, a welding section is provided on the side of the fixed body.
[0006] The beneficial effects of this utility model are as follows: This utility model installs the radio reflector into the track of the fixed body, and installs the main pin into the hole to prevent the radio reflector from falling off. The cotter pin is installed at both ends of the main pin to control and prevent the main pin from moving left and right, which would cause the radio reflector to fall off from the track of the fixed body.
[0007] This invention solves the problem of difficult disassembly of the photoelectric switch radio reflector plate inside the traditional vertical shaft, avoids high risks in the shaft, and is simple and convenient to disassemble and assemble, making it highly practical. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0009] Figure 2 This is a three-dimensional structural diagram of the fixed main body in this utility model.
[0010] In the diagram: 1-fixed main body; 1a-track; 1b-hole; 1c-welding part; 2-radio reflector; 3-cotter pin; 4-main pin shaft. Detailed Implementation
[0011] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.
[0012] like Figures 1-2 As shown, a fixing device for a photoelectric switch radio reflector plate for a mine shaft hoist includes a fixing body 1. Tracks 1a are provided inside both sides of the fixing body 1, and a radio reflector plate 2 is slidably mounted within the tracks 1a. Holes 1b are provided at the bottom of both sides of the fixing body 1, and main pins 4 are inserted into the holes 1b, with cotter pins 3 inserted on the main pins 4. A welding section 1c is provided on the side of the fixing body 1.
[0013] The fixing body 1 includes symmetrically designed rails 1a on both sides for fixing the radio reflector 2. The purpose of the rails 1a is to fix the radio reflector 2 within the rails 1a, replacing the traditional screw fixing method and facilitating the disassembly of the radio reflector 2 by maintenance workers. A circular hole 1b at the bottom of the fixing body 1 is used to insert a main pin 4 to prevent the radio reflector 2 from falling out of the rails 1a. Circular holes are opened at both ends of the main pin 4, and cotter pins 3 are inserted into the circular holes to prevent the main pin 4 from falling out of the holes 1b due to frequent vibrations during lifting of the fixing body 1. The welding part 1c is designed to reliably weld the fixing body 1 to the edge of the lifting container body, achieving a reliable connection between the radio reflector 2 fixing device and the lifting container.
[0014] During the maintenance work of replacing the radio reflector of the vertical shaft hoist, the cotter pin 3 is removed from the main pin shaft 4, the main pin shaft 4 is then removed from the hole 1b, and then the radio reflector 2 is slid out from the track 1a in sequence for removal. The installation sequence is the reverse of the disassembly process, which makes disassembly convenient and saves the traditional screw removal process.
Claims
1. A fixing device for a photoelectric switch radio reflector in a mine shaft hoist, characterized in that: It includes a fixed body (1), with tracks (1a) inside both sides of the fixed body (1), a radio reflector (2) sliding inside the tracks (1a), holes (1b) at the bottom of both sides of the fixed body (1), a main pin (4) inserted into the holes (1b), and a cotter pin (3) inserted on the main pin (4).
2. The fixing device for the photoelectric switch radio reflector of a mine shaft hoist according to claim 1, characterized in that: The fixed body (1) has a welding part (1c) on its side.