Supporting device capable of quickly separating wind current
By designing a rapid airflow isolation device with a column steel pipe support and a telescopic sleeve connection, the problems of slow response speed and high cost of traditional devices are solved, achieving rapid and reliable airflow isolation, adapting to different roadway shapes, and reducing installation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional downhole airflow control devices are slow to respond in emergencies, complex to operate, and costly, failing to meet the need for rapid airflow isolation and having low reliability under extreme conditions.
Design a quick-airflow isolation device that includes horizontally and vertically intersecting column steel pipe supports, connected by telescopic sleeves and pins, and combined with arc hooks to suspend windbreak curtains, which can be quickly assembled and fixed in the roadway.
It achieves fast and reliable airflow isolation, adapts to different tunnel cross-sectional shapes, reduces installation and maintenance costs, and improves response speed in emergency situations.
Smart Images

Figure CN224107315U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of coal mine safety production, especially relates to a supporting device of quick cut-off air flow. BACKGROUND
[0002] The underground operation environment of coal mines has always been faced with numerous safety challenges due to its particularity and complexity. Mine ventilation safety is a basic and key work in the production process, and air flow control is one of the factors to ensure mine safety. Reasonable ventilation safety management is of great significance to the health and safety of miners and the improvement of production efficiency. Air flow not only affects the air quality in the mine, but also is related to the diffusion of harmful substances such as gas and dust, and the occurrence of disasters such as fire and explosion. Therefore, a device capable of quickly and effectively cutting off air flow plays an irreplaceable role in controlling dangerous factors and ensuring the safety and stability of the underground environment. The traditional underground air flow control device mainly relies on fixed air doors, air walls and other physical isolation facilities. Although these facilities can control air flow to a certain extent, they have slow response speed and complex operation in emergency situations such as fire and gas leakage, which cannot meet the demand of quickly cutting off air flow. In addition, the installation and maintenance cost of these facilities is high, and they may not work stably and reliably under extreme conditions, which limits their application effect in mine safety. SUMMARY
[0003] In order to overcome the above technical problems, the purpose of the utility model is to provide a supporting device for quickly cutting off air flow, which has the characteristics of easy assembly and quick cutting off of air flow in underground roadway.
[0004] The technical scheme adopted by the utility model is:
[0005] A supporting device for quickly cutting off air flow, comprising horizontally and vertically intersecting column steel pipe supports 2, the vertically arranged column steel pipe supports 2 are connected by cylindrical telescopic sleeves 3, the horizontally arranged column steel pipe supports 2 are connected by cylindrical telescopic sleeves 3, the end of the column steel pipe support 2 is provided with a bolt 4, and the surface of the bolt 4 is provided with a telescopic protrusion.
[0006] The end of the column steel pipe support 2 is provided with a row of drill holes 5, and the protrusion extends into the drill hole 5.
[0007] The top of the vertically arranged column steel pipe support 2 is provided with an arc-shaped hook 6, and the arc-shaped hook 6 suspends a wind curtain.
[0008] The bottom of the vertically arranged column steel pipe support 2 is provided with a base 1.
[0009] The cylindrical telescopic sleeve 3 is threaded around its periphery, and the cylindrical telescopic sleeve (3) and the cylindrical steel pipe support (2) can be connected by threaded assembly.
[0010] Multiple sets of horizontal and vertical column steel pipe supports are installed at equal intervals.
[0011] The beneficial effects of this utility model are:
[0012] The main body of this utility model is made of steel pipe, which has strong wind pressure resistance and features convenient transportation, easy assembly, and fast construction speed. This utility model can be used to seal blind alleys, temporarily block alleys, etc. The telescopic sleeve and pin positioning design allows this utility model to be used without being limited by the geometry or size of the alley cross-section. Attached image description:
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the arched cross-section of this utility model. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] like Figure 1 , Figure 2 As shown, the detachable base 1 supports the entire device; the horizontal and vertical column steel pipe supports 2, with the horizontally and vertically installed steel pipes 2 supporting the windbreak curtain and thus improving the stability of the device; the cylindrical telescopic sleeve 3 has threads on its outer periphery and can be connected to the vertical or horizontal steel pipe 2 through assembly, and the height and width of the device can be adjusted by rotation; the pin 4 has a row of telescopic protrusions on its positioning, and a row of drilled holes 5 at the ends of the horizontal and vertical steel pipes, connecting the pin 4 that extends into the steel pipe, the protrusions on it can telescopically engage with the through holes of the drilled holes 5, used to adjust the length of the top telescopic rod so that the support is close to the roadway coal wall and roof, playing a fixing role; the arc hook is designed at both ends of each telescopic sleeve to suspend and fix the windbreak curtain with high strength, flame retardancy and airtightness.
[0017] The working principle of this utility model:
[0018] The device can be used to seal blind roadway, block the roadway and separate the air flow in different sections. Before installation, the operator needs to level the site and install the base 1 to support the upper device. Then assemble the steel pipe support 2, which is fixed by movable buckle and used to support the wind curtain. After installation, adjust the size of the device by rotating the screw on the telescopic rod 3 and the position of the latch 4, so that the end of the steel pipe is tightly clamped in the roadway to enhance the fixation. Then install the wind curtain at the end of the telescopic rod through the arc hook 6, which is connected with the roof of the roadway and adjusts the perpendicularity of the wind curtain, so that the wind curtain naturally droops to cover the entire section of the roadway. Finally, seal the side and bottom of the wind curtain to achieve the purpose of blocking the air flow.
Claims
1. A support device for quickly isolating air flow, characterized in that, The utility model relates to a kind of column steel pipe support (2) comprising horizontal and vertical cross arrangement, and the column steel pipe support (2) between vertical is connected by cylindrical telescopic sleeve (3), the column steel pipe support (2) between horizontal is connected by cylindrical telescopic sleeve (3), the end of the column steel pipe support (2) is provided with bolt (4), and the surface of bolt (4) is provided with telescopic protrusion; The end of the column steel pipe support (2) is provided with a row of drill hole (5), and the protrusion is inserted into the drill hole (5); The top of the column steel pipe support (2) arranged vertically is provided with arc-shaped hook (6), and a wind screen is hung on the arc-shaped hook (6).
2. A support device for quickly blocking airflow according to claim 1, characterized in that, The bottom of the column steel pipe support (2) arranged vertically is provided with base (1).
3. A support device for quickly blocking air flow according to claim 1, characterized in that, The periphery of the cylindrical telescopic sleeve (3) is provided with threads, and the cylindrical telescopic sleeve (3) and the column steel pipe support (2) can be connected by threaded assembly.
4. A support device for quickly blocking air flow according to claim 1, characterized in that, The column steel pipe support (2) arranged horizontally and vertically is arranged at equal intervals with multiple groups.