A foldable mine wind shield with a framework structure

Abstract

This utility model discloses a foldable frame structure windbreak device for mining; it relates to mine ventilation safety technology; it includes a handle, multiple main frames and multiple windbreak curtains, the multiple main frames are arranged around the end of the handle, one end of the main frame is rotatably connected to one end of the handle, the main frame rotates to move closer to or away from the handle; the windbreak curtains are arranged between adjacent main frames, the main frames open to drive the windbreak curtains to splice together, and the handle is also provided with an adjustment component for adjusting the rotation of the main frames; this application effectively solves the problems of inconvenience in carrying, poor sealing and easy damage in the prior art through the foldable frame structure design and windbreak curtain splicing method, and has the advantages of easy carrying, improved sealing performance and extended service life.

Description

Technical Field

[0001] This utility model relates to mine ventilation safety technology, and in particular to a mine windbreak device with a foldable frame structure. Background Technology

[0002] In underground ventilation management of metal mines, blocking airflow is a key measure to ensure the safety of the working environment. Commonly used facilities include airtight walls, air curtains, and air doors. Among them, air curtains are widely used for the phased blocking of airflow in roadways due to their temporary deployment and rapid installation. However, the canvas air curtains commonly used in underground mines currently have several drawbacks. Their overall structure consists of heavy flexible materials and a fixed frame, resulting in excessive weight and significant volume even when folded. Miners must rely on specialized transport equipment to carry them, which is extremely inconvenient, especially when moving through narrow roadways, severely restricting emergency response efficiency. During repeated disassembly and installation, the air curtain material is easily torn by external forces, and the supporting frame is prone to permanent deformation, resulting in a high equipment damage rate and a significant reduction in the number of reuses, thus keeping the cost per use high. In addition, the inherent pleated design of the air curtain surface can easily cause airflow turbulence at high wind speeds, weakening its dust blocking ability and easily leading to secondary dust diffusion, further deteriorating underground air quality. Because the material itself lacks rigid support, it is difficult to fit tightly against the tunnel wall during the process of blocking airflow, and air leakage is common. When the air pressure increases, the sealing performance of the existing air curtain drops sharply or even fails completely, and cannot meet the safety blocking requirements under high air pressure environment. Utility Model Content

[0003] The purpose of this application is to provide a foldable frame structure for mining windbreaks, which has the advantages of being easy to carry, improving sealing performance, and extending service life.

[0004] This application provides a foldable frame structure windbreak device for mining, which adopts the following technical solution:

[0005] A foldable frame structure for mining wind protection includes a handle, multiple main frames, and multiple windproof curtains. The main frames are arranged around the end of the handle, with one end of the main frame rotatably connected to the other end of the handle. The main frames can rotate to move closer to or away from the handle. The windproof curtains are arranged between adjacent main frames, and the main frames can open to drive the windproof curtains to be spliced ​​together. The handle is also provided with an adjustment component for adjusting the rotation of the main frames.

[0006] Optionally, the adjustment assembly includes a support frame, a hinge seat, and an adjustment spring. The hinge seat is slidably fitted onto the handle. One end of the support frame is rotatably connected to the middle section of the main frame, and the other end is rotatably connected to the hinge seat. The adjustment spring is fitted onto the handle. When the main frame is unfolded, the adjustment spring is in a compressed state. The hinge seat is provided with a limiting component for restricting its own sliding.

[0007] Optionally, the limiting component includes a limiting spring and a pin. The pin is slidably connected to the hinge seat in the radial direction of the handle. The handle has a groove for the pin to be inserted. When the limiting spring is in its natural state, the pin is inserted into the groove.

[0008] Optionally, the end of the pin away from the handle is provided with a pull rod that extends out of the hinge seat.

[0009] Optionally, the handle includes a connecting section and a support section, the main frame is mounted on the connecting section, and the connecting section and the support section are connected by a support hinge.

[0010] Optionally, the windproof curtain is provided with hooks.

[0011] As can be seen from the above, the foldable frame structure mining windbreak device provided in this application effectively solves the problems of inconvenience in carrying, poor sealing and easy damage in the prior art through the foldable frame structure design and windbreak curtain splicing method. It has the advantages of being easy to carry, improving sealing performance and extending service life. Attached Figure Description

[0012] Fig. 1 This is a front view of the overall structure of a foldable frame structure mining windbreak device according to this application;

[0013] Fig. 2 This is an axial view of the windbreak device of this application;

[0014] Fig. 3 This is a cross-sectional view of the overall structure of the limiting component in this application.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1. Handle; 11. Support section; 12. Connecting section; 13. Support hinge; 2. Main frame; 3. Support frame; 4. Hinge seat; 41. Limiting spring; 42. Pin; 43. Pull rod; 5. Adjusting spring; 6. Wind deflector; 61. Hook. Detailed Implementation

[0017] The following is in conjunction with the appendix Figs. 1-3 This application will be described in further detail.

[0018] This application provides a foldable frame structure for mining windbreak devices, including a handle 1, multiple main frames 2, and multiple windbreak curtains 6. The multiple main frames 2 are arranged around the end of the handle 1, and one end of the main frame 2 is rotatably connected to one end of the handle 1. The main frame 2 rotates to move closer to or away from the handle 1. The windbreak curtains 6 are arranged between adjacent main frames 2, and the main frames 2 open to drive the windbreak curtains 6 to be spliced ​​together. The handle 1 is also provided with an adjustment component for adjusting the rotation of the main frame 2.

[0019] The handle 1 can be understood as a core component for operation and support, primarily providing handheld functionality and serving as a fulcrum for skeletal rotation. Specifically, the handle 1 can be made of lightweight metal materials or high-strength composite materials, such as aluminum alloy tubing or carbon fiber, thereby reducing overall weight. Furthermore, the surface of the handle 1 can be designed with anti-slip textures or additional anti-slip sleeves to facilitate a more stable grip for the miner during use.

[0020] In practical applications, the rotational connection of the main frame 2 can be achieved in various ways, such as using a hinge structure, a bearing structure, or an elastic connector. These connection methods ensure that the main frame 2 can rotate stably around the end of the handle 1 while maintaining sufficient mechanical strength to withstand external loads. As a preferred embodiment, the material of the main frame 2 can be selected from alloy steel or engineering plastics with high bending strength to meet the needs of frequent folding and unfolding.

[0021] The windbreak curtain 6 is designed primarily to block airflow. It can be made of flexible materials such as high-density polyethylene or polyurethane-coated fabric to ensure good sealing performance. Furthermore, reinforcing strips or embedded magnetic strips can be installed along the edges of the windbreak curtain 6 to achieve a tighter fit when the main frame 2 is open. This effectively reduces gaps between the windbreak curtains 6, thereby improving overall wind-blocking efficiency.

[0022] The working principle of this application embodiment is as follows: A foldable mine windbreak device with a frame structure achieves its function through the collaborative design of a handle 1, multiple main frames 2, and multiple windbreak curtains 6. The handle 1, as the core of operation, is not only easy to hold and transport, but also serves as the fulcrum for the rotation of the main frames 2, allowing the overall structure to flexibly switch between unfolded and folded states. Multiple main frames 2 are arranged around the end of the handle 1, forming a radial structure that provides stable support and allows centralized control of the folding action. One end of the main frame 2 is rotatably connected to the handle 1, allowing it to rotate around the axis of the handle 1, thereby achieving a compact folded state close to the handle 1 or an unfolded state away from the handle 1. When the main frame 2 rotates to be close to the handle 1, the overall device volume is significantly reduced, making it easy to carry and store; when the main frame 2 rotates to be away from the handle 1, the windbreak curtains 6 between adjacent main frames 2 are driven to splice together, forming a continuous windbreak surface. The splicing mechanism of the windbreak curtains 6 eliminates the turbulence problem caused by the pleated design of traditional windbreak curtains, while also reducing the possibility of dust leakage.

[0023] Furthermore, the adjustment component on the handle 1 controls the rotation of the main frame 2, ensuring its stability in the unfolded state and improving ease of operation. Thus, this device solves the problem of inconvenience caused by the excessive size of traditional wind curtains through the foldable frame, improves sealing and dustproof efficiency through the seamless splicing mechanism of the windproof curtain 6, and ensures the reliability of the unfolded state through the adjustment component, achieving a lightweight, durable, and efficient windproof effect.

[0024] This application further proposes an adjustment assembly including a support frame 3, a hinge seat 4, and an adjustment spring 5. The hinge seat 4 is slidably sleeved on the handle 1. One end of the support frame 3 is rotatably connected to the middle section of the main frame 2, and the other end is rotatably connected to the hinge seat 4. The adjustment spring 5 is sleeved on the handle 1. When the main frame 2 is unfolded, the adjustment spring 5 is in a compressed state. The hinge seat 4 is provided with a limiting component for limiting its own sliding.

[0025] Specifically, the support frame 3 is a structural component used to provide support and assist in the deployment and fixation of the main frame 2. It can be made of metal rods or high-strength composite materials. Its purpose is to distribute wind pressure loads through its rotational connection with the main frame 2 in its middle section, avoiding deformation caused by local stress concentration. The hinge seat 4 can be understood as a connecting component that allows relative rotation and sliding along the axial direction of the handle 1. It can achieve the sliding function through a slide groove or slide rail structure, aiming to adapt to the geometric changes of the main frame 2 during rotation and ensure a smooth and stable adjustment process. The adjusting spring 5 is an elastic element, which can be implemented using a helical spring or a disc spring. Its purpose is to provide continuous restoring force to the main frame 2 and resist the action of external wind pressure after deployment, enhancing the stability of the overall structure.

[0026] Through the above technical solution, the main frame 2 can remain stable in the deployed state, solving the problem of loose splicing of the windbreak curtain 6 due to excessive wind pressure, thereby effectively blocking high-pressure airflow and reducing air leakage. At the same time, this solution complements the overall design of the handle 1, the main frame 2, and the windbreak curtain 6, forming a compact and fully functional mine windbreak device, significantly improving the practicality and reliability of the device.

[0027] This application further proposes a limiting component including a limiting spring 41 and a pin 42. The pin 42 is slidably connected to the hinge seat 4 in the radial direction of the handle 1. The handle 1 has a groove for the pin 42 to be inserted. When the limiting spring 41 is in the natural state, the pin 42 is inserted into the groove.

[0028] The solution uses the elastic force generated by the limiting spring 41 to make the pin 42 move radially along the handle 1. When the device is unfolded, the pin 42 automatically embeds into the groove on the handle 1, forming a passive locking mechanism that does not require manual intervention.

[0029] This application further proposes that the end of the pin 42 away from the handle 1 is provided with a pull rod 43, and the pull rod 43 extends out of the hinge seat 4.

[0030] This allows users to easily pull out or insert the pin 42 without the need for tools.

[0031] This application further proposes that the handle 1 includes a connecting section 12 and a support section 11, the main frame 2 is mounted on the connecting section 12, and the connecting section 12 and the support section 11 are connected by a support hinge 13.

[0032] Specifically, this technical solution significantly improves the portability and structural adaptability of the windshield device in its folded state through the segmented structural design of the handle 1. The support hinge 13 between the connecting section 12 and the support section 11 allows the two sections of the handle 1 to rotate smoothly relative to each other according to operational needs, thereby effectively shortening the overall length during folding. At the same time, after the windshield device is fully unfolded, the support section 11 can be rotated to support it on the ground, providing support for the entire device. Through the above technical solution, the segmented design of the handle 1 not only optimizes the compactness of the folding windshield device, but also significantly improves its transportation convenience in narrow spaces, while enhancing the durability and field applicability of the device.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foldable mine ventilation barrier of skeletal construction characterised in that: It includes a handle, multiple main frames and multiple wind deflectors. The main frames are arranged around the end of the handle, with one end of the main frame rotatably connected to the other end of the handle. The main frames rotate to move closer to or away from the handle. The wind deflectors are arranged between adjacent main frames. The main frames open to drive the wind deflectors to be spliced ​​together. The handle is also equipped with an adjustment component for adjusting the rotation of the main frames.

2. The foldable frame structure mine windbreak device according to claim 1, characterized in that: The adjustment assembly includes a support frame, a hinge seat, and an adjustment spring. The hinge seat is slidably fitted onto the handle. One end of the support frame is rotatably connected to the middle section of the main frame, and the other end is rotatably connected to the hinge seat. The adjustment spring is fitted onto the handle. When the main frame is unfolded, the adjustment spring is in a compressed state. The hinge seat is provided with a limiting component to restrict its own sliding.

3. A foldable frame structure mine windbreak device according to claim 2, characterized in that: The limiting component includes a limiting spring and a pin. The pin is slidably connected to the hinge seat in the radial direction of the handle. The handle has a groove for the pin to be inserted. When the limiting spring is in its natural state, the pin is inserted into the groove.

4. The foldable wind barrier of claim 3, wherein: The pin has a pull rod at the end away from the handle, and the pull rod extends out of the hinge seat.

5. The foldable wind barrier of claim 1, wherein: The handle includes a connecting section and a support section. The main frame is mounted on the connecting section, and the connecting section and the support section are connected by a support hinge.

6. A foldable frame structure mine windbreak device according to claim 1, characterized in that: The windproof curtain is equipped with hooks.

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