Unloading groove device for preventing dust raising

By designing the feeding unit, telescopic tube unit, and limiting and fixing components of the unloading chute device, the dust problem during the unloading of powdery materials in underground coal mines was solved, achieving simple operation and space saving, and making it suitable for narrow environments.

CN223983210UActive Publication Date: 2026-03-10TIEFA COAL IND (GRP) CO LTD DALONG MINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

During the unloading of powdery materials in underground coal mines, dust pollution is severe, affecting air quality and worker health. Furthermore, existing equipment is complex to operate, occupies a large space, and is difficult to use in confined environments.

Method used

A discharge trough device was designed, comprising a feeding unit, a telescopic tube unit, a folding bracket, and a limiting and fixing component. The material is introduced in a concentrated manner through a funnel structure and fixed by magnetic adsorption, enabling quick installation and convenient operation, and reducing the volume when not in use.

Benefits of technology

It effectively reduces dust, improves the working environment, protects workers' health, is easy to operate, is suitable for narrow spaces, and saves storage space.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an unloading groove device for preventing dust raising, relates to the technical field of coal mining and material carrying, and is particularly suitable for solving the dust raising problem generated in the carrying process of powdery materials such as sandy soil and cement. The device comprises a feeding unit, a telescopic pipe unit, a folding support and a limiting and fixing assembly. The feeding unit is provided with a funnel structure, so that materials can be intensively guided in conveniently; the telescopic pipe unit is composed of multiple stages of pipe fittings connected in a sliding mode, the length can be adjusted according to needs, and different operation requirements are met. The folding bracket ensures that the device can be stably supported during use, and is easy to store when not used, so that the occupied space is greatly reduced; the limiting and fixing assembly is attracted to the transport vehicle through a magnet, and the stability of the device in the operation process is guaranteed. Through the optimized design, the dust raising phenomenon in the unloading process is remarkably reduced, the working environment is improved, and the health of workers is protected.
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Description

Technical Field

[0001] This utility model relates to the field of coal mining and handling technology, specifically to a cargo unloading trough device for preventing dust. Background Technology

[0002] In coal mining and the handling of powdery materials such as sand and cement, the unloading process is often accompanied by severe dust pollution. Especially in underground production environments, where the space is relatively enclosed and air circulation is poor, this dust not only seriously affects the air quality within the mine shaft but can also cause long-term harm to the health of workers. For example, when handling fine powdery materials such as sand or cement, a large number of fine particles are easily generated and suspended in the air during unloading, creating a difficult-to-control dust problem.

[0003] Therefore, there is an urgent need for a new type of device that can effectively suppress dust generated during unloading of powdery materials such as sand and cement, is easy to carry and store, and does not cause major changes to the existing operating procedures. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a unloading trough device for preventing dust. It aims to provide a simple, easy-to-operate, and highly efficient dust-proof unloading trough device, which is particularly suitable for handling powdery materials such as sand and cement that are prone to dust generation, thereby improving the working environment and protecting the health of workers.

[0005] This utility model is achieved through the following technical solution: a unloading trough device for preventing dust, the key technical points of which are: including a feeding unit, a telescopic tube unit, a folding bracket and a limiting and fixing component;

[0006] The feeding unit includes a funnel section, a U-shaped section fixedly disposed on the front side of the funnel section, and a limiting section disposed on the front side of the U-shaped section.

[0007] The telescopic tube unit includes a front tube fixedly connected to the rear side of the funnel section, a middle tube slidably fitted on the front tube, and a rear tube slidably fitted on the middle tube.

[0008] The folding bracket includes a reinforcing ring fixedly fitted on the outside of the rear tube, support rods hinged to the left and right sides of the reinforcing ring, and a U-shaped base fixedly connected to the lower part of the support rods; the open end of the U-shaped base faces forward.

[0009] The limiting and fixing assembly includes a fixing ring fixedly disposed at the bottom of the U-shaped part, a rope connected to the fixing ring at one end, and a magnet connected to the other end of the rope.

[0010] The inner contour of the U-shaped base is larger than the outer contour of the funnel.

[0011] Furthermore, a suction plate is fixedly installed on the rear side of the U-shaped base to increase the magnetic adsorption area.

[0012] Furthermore, a baffle is provided on the reinforcing ring to limit the swing angle of the support rod.

[0013] The beneficial effects and features of this utility model are as follows:

[0014] Effective dust suppression: The funnel-shaped design at the front end, consisting of the feeding unit and the telescopic pipe unit, allows materials to be guided and concentrated as they pass through the device, reducing scattering during transfer and effectively minimizing dust generation from unloading sand, cement, and other powdery materials. This not only improves the working environment but also protects the health of workers.

[0015] Convenient operation process: This utility model is designed with an easy-to-operate limiting and fixing component, including the function of magnetic adsorption to the side of the transport vehicle, which makes the device quick and easy to install. It can be firmly fixed without complicated tools or steps, which greatly improves work efficiency.

[0016] Space-saving storage design: The device features a telescopic tube unit and a folding bracket, which significantly reduces its size when not in use, making it easy to carry and store. For example, in its fully retracted state, the length of the device is only half or even less than that in its extended state, making it ideal for downhole or other confined working environments with limited site conditions. Attached Figure Description

[0017] Figure 1 This is a right-side view of the entire utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the entire utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the present invention in its stored state.

[0020] The main components in the diagram are numbered as follows: 1. Feeding unit; 101. Funnel section; 102. U-shaped section; 103. Limiting section; 2. Telescopic tube unit; 201. Front tube; 202. Middle tube; 203. Rear tube; 3. Folding bracket; 301. Reinforcing ring; 302. Support rod; 303. U-shaped base; 304. Suction plate; 4. Limiting and fixing assembly; 401. Fixing ring; 402. Rope; 403. Magnet.

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and the other drawings obtained are all within the protection scope claimed by this utility model. Detailed Implementation

[0022] The following combination Figure 1-3 The contents of this utility model will be described in detail through specific embodiments. Example

[0023] The unloading trough device for preventing dust includes: a feeding unit 1, a telescopic tube unit 2, a folding bracket 3, and a limiting and fixing assembly 4;

[0024] The feeding unit includes a funnel section 101, a U-shaped section 102 fixedly disposed on the front side of the funnel section, and a limiting section 103 disposed on the front side of the U-shaped section; the structure of the feeding unit facilitates the centralized introduction of materials.

[0025] The telescopic tube unit includes a front tube 201 fixedly connected to the rear side of the funnel section, a middle tube 202 slidably fitted on the front tube, and a rear tube 203 slidably fitted on the middle tube, forming a multi-stage telescopic structure. To ensure the stability and safety between the tubes, front retaining rings are fixedly installed on the inner front end of the middle tube and the rear tube. Rear retaining rings that are locked and engaged with the front retaining rings are fixedly installed on the outer rear end of the front tube and the middle tube to prevent the tubes from disengaging during sliding.

[0026] The folding bracket includes a reinforcing ring 301 fixedly fitted on the outside of the rear tube, a support rod 302 hinged to the left and right sides of the reinforcing ring, and a U-shaped base 303 fixedly connected to the lower part of the support rod. The open end of the U-shaped base faces forward, and the inner contour of the U-shaped base is larger than the outer contour of the funnel, which makes it easier for the U-shaped base to interfere with the funnel when the angle is adjusted for storage, and can further reduce the space occupied by the device.

[0027] The limiting and fixing assembly includes a fixing ring 401 fixedly installed at the bottom of the U-shaped part, a rope 402 connected to the fixing ring at one end, and a magnet 403 connected to the other end of the rope. By connecting the rope and the magnet, the device can be attracted to the wheelbarrow by the magnet during use, ensuring the stability and reliability of the device.

[0028] Preferably, a suction plate 304 is fixedly provided on the rear side of the U-shaped base to increase the magnetic adsorption area.

[0029] Usage process:

[0030] Preparation stage: Fully unfold the telescopic tube unit 2 and adjust it to a suitable length according to actual needs.

[0031] Installation phase: Place the limiting part 103 on the edge of the dump truck to be unloaded, and attach it to the side of the dump truck using magnet 403 to ensure the stability of the device. Adjust the angle of the support rod 302 on the folding bracket 3 so that the U-shaped base 303 is in horizontal contact with the ground, providing stable support for the device.

[0032] During operation: Workers can use tools such as shovels to transport powdery materials such as sand and cement through the feed port of the device to the discharge port at the rear end of the rear pipe 203, effectively reducing dust. At the discharge port, workers can also place handcarts to directly load materials, improving handling efficiency.

[0033] Storage phase: After the operation is completed, first remove magnet 403, then retract telescopic tube unit 2 in sequence, and adjust the support rod 302 of folding bracket 3 to the storage state. Finally, attach magnet 403 to suction plate 304 to complete the storage of the entire device, saving space. The length of the device in the storage state is only half that in the use state, saving space.

Claims

1. A device for preventing dust emission from a discharge chute, characterized by: The utility model relates to a feeding device for a portable water purifier, which comprises a feeding unit, a telescopic pipe unit, a folding support and a limiting and fixing assembly. The feeding unit comprises a funnel part, a U-shaped part fixedly arranged at the front side of the funnel part and a limiting part arranged at the front side of the U-shaped part. The telescopic pipe unit comprises a front pipe fixedly connected with the rear side of the funnel part, a middle pipe slidingly sleeved on the front pipe and a rear pipe slidingly sleeved on the middle pipe. The folding support comprises a reinforcing ring fixedly sleeved on the outer side of the rear pipe, a support rod hingedly arranged on the left and right sides of the reinforcing ring and a U-shaped base fixedly connected with the lower part of the support rod, and the opening end of the U-shaped base faces forward. The limiting and fixing assembly comprises a fixing ring fixedly arranged at the bottom of the U-shaped part, a rope connected with one end of the fixing ring and a magnet connected with the other end of the rope. The inner contour of the U-shaped base is larger than the outer contour of the funnel part.

2. The unloading chute apparatus for preventing dust raising according to claim 1, characterized by: A suction plate for increasing the adsorption area of the magnet is fixedly arranged at the rear side of the U-shaped base.

3. The unloading chute apparatus for preventing dust raising according to claim 1, characterized by: A baffle for limiting the swing angle of the support rod is arranged on the reinforcing ring.