A kind of protective equipment for coal mine heading face head-on face

Abstract

The application discloses a kind of protective equipment for coal mine heading face head-on, it includes: frame, and the arc piece of the adaptation of roadway top and side wall;Protective net is arranged on the frame, for blocking coal gangue;And at least one connecting piece is arranged above the frame, and is used to fix the protective equipment on roadway roof plate.The protective equipment provided by the embodiment of the application can effectively block coal gangue by setting protective net on the frame, avoid the injury of operating personnel by coal gangue falling from head-on, reduce the probability of occurrence of personal injury accident, and provide a safer working environment for operating personnel of coal mine heading face.

Description

Technical Field

[0001] This application generally relates to the field of coal mine processing equipment technology. More specifically, this application relates to a protective device for the frontal face of a coal mine tunneling face. Background Technology

[0002] In coal mining operations, the tunneling face is the core area for roadway excavation, and its construction safety directly affects the lives of workers and overall production efficiency. Currently, industry safety protection for tunneling faces mainly focuses on lateral protection measures such as roof and sidewall support. However, in the area of ​​face protection, existing technical solutions do not include any dedicated safety protection facilities. This makes it easy for workers to experience spalling due to stress distribution changes or unstable geological structures in the coal and rock mass at the face when performing operations such as roof and sidewall support and equipment debugging. The falling coal and rock lacks effective protection and can easily injure workers on site, causing personal injury accidents and posing a serious threat to their lives.

[0003] In view of this, there is an urgent need to provide a protective equipment solution for the face of coal mine tunneling operations, so as to effectively shield the coal and gangue at the face of the face, avoid personal injury accidents caused by the exposure of coal and gangue, and provide a solid guarantee for on-site operation safety. Utility Model Content

[0004] In order to at least address one or more of the technical problems mentioned above, this application proposes protective equipment for the face of a coal mine tunneling face that provides robust assurance of on-site operational safety in several aspects.

[0005] This application provides a protective device for the front face of a coal mine tunneling face, comprising: The frame is an arc-shaped component adapted to the top and sidewalls of the roadway; a protective net is installed on the frame to block coal and gangue; and at least one connector is installed above the frame to fix the protective equipment to the top of the roadway.

[0006] In some embodiments, the frame is a semi-circular skeleton structure welded from multiple round steel bars.

[0007] In some embodiments, the protective netting is fixedly connected to the frame by welding or binding.

[0008] In some embodiments, the connector is a hook made of bent round steel, which suspends the protective equipment from the tunnel ceiling.

[0009] In some embodiments, at least one anchor bolt fixing system is also included; the anchor bolt fixing system includes an anchor bolt having a preset length and a support plate disposed at one end of the anchor bolt along its length; the anchor bolt is inserted into the coal gangue perpendicularly to the protective net, and the support plate is pressed against the protective net or frame.

[0010] In some embodiments, a U-shaped component is also included for securing the frame to the sidewall of the tunnel.

[0011] In some embodiments, the lower edge of the protective device is flush with the slag surface of the tunnel.

[0012] The protective equipment for the face of a coal mine tunneling operation provided above, in this embodiment, by setting an arc-shaped frame adapted to the top and sidewalls of the roadway, a protective net installed on the frame to block coal and gangue, and a connector above the frame to fix the protective equipment to the roadway roof, can achieve comprehensive coverage protection of the face of the tunneling operation, effectively blocking coal and gangue generated by rockfall, preventing coal and gangue from directly injuring workers, and ensuring the stability of the protective equipment through a fixed structure, reducing personal injury accidents caused by lack of protection, and providing reliable protection for the safety of coal mine tunneling operations. Attached Figure Description

[0013] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, and the same or corresponding reference numerals denote the same or corresponding parts, wherein: Figure 1 A schematic diagram of a protective device for the frontal face of a coal mine tunneling face, according to an embodiment of this application, is shown. Figure 2 A schematic diagram of an anchor bolt fixing system provided on a protective device according to an embodiment of this application is shown.

[0014] In the picture: 100, protective equipment; 101. Frame; 102. Protective net; 103. Connector; 104. Anchor bolt fixing system; 105. Roadway slag surface. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] It should be understood that the terms "comprising" and "including" used in the specification and claims of this application indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0017] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this specification and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0018] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0019] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0020] like Figure 1 As shown, in some embodiments, this application provides a protective device 100 for the front face of a coal mine tunneling face, comprising: a frame 101, which is an arc-shaped component adapted to the top and sidewalls of the roadway; a protective net 102, which is disposed on the frame 101 for blocking coal and gangue; and at least one connector 103, which is disposed above the frame 101 and for fixing the protective device 100 to the top of the roadway.

[0021] The protective device 100 for the face of a coal mine tunneling face in this application mainly includes a frame 101, a protective net 102, and a connector 103. Specifically, the frame 101 is an arc-shaped component whose shape is adapted to the top and sidewalls of the coal mine roadway, thereby allowing the protective device 100 to closely fit the contour of the roadway, thus forming a relatively complete protective space on the face of the tunneling face, effectively covering the area that needs protection, and reducing blind spots caused by shape mismatch.

[0022] The protective net 102 is installed on the frame 101, and its main function is to block coal and gangue, preventing them from directly hitting workers or equipment, thereby ensuring the personal safety of workers and the normal operation of equipment, and reducing the risk of accidents. At least one connector 103 is installed on the top of the frame 101 to firmly fix the protective device 100 to the roadway roof, ensuring that the protective device 100 will not shift or fall off due to external forces during use, and will always remain in the correct position to perform its protective function.

[0023] The solution proposed in this application, by setting a protective net 102 on the frame 101, can effectively block coal and gangue, prevent workers from being injured by falling coal and gangue from the face, reduce the probability of personal injury accidents, and provide a safer working environment for workers in coal mine tunneling faces.

[0024] In one specific implementation, the frame 101 is a semi-circular skeleton structure welded from multiple round steel bars.

[0025] In this application, the frame 101 is a semi-circular skeleton structure welded from multiple round steel bars. The semi-circular shape is adapted to the contour of the top and sidewalls of the coal mine roadway, allowing it to closely conform to the roadway's shape. This creates a relatively complete protective space at the face of the working face, reducing blind spots caused by shape mismatch. Those skilled in the art will understand that round steel, as a common metallic material, possesses good mechanical properties and can withstand certain pressure and impact forces, ensuring that the frame 101 has high strength and stability in the complex underground environment of the coal mine, is not easily deformed or damaged, and provides stable support for the protective net 102.

[0026] In one specific implementation, the protective net 102 is fixedly connected to the frame 101 by welding or binding.

[0027] In this application, the protective net 102 is fixedly connected to the semi-circular frame 101, which is made of multiple round steel bars, by welding or binding. This connection method ensures a firm bond between the protective net 102 and the frame 101, allowing the protective net 102 to adhere tightly to the surface of the frame 101 and form a stable protective structure.

[0028] In one specific implementation, the connector 103 is a hook made of round steel bent into shape, which suspends the protective device 100 from the roof of the tunnel.

[0029] In this application, the connector 103 is a hook made of bent round steel. The hook is connected to a pre-set structure or anchor bolt on the tunnel roof, thus firmly suspending the entire protective device 100 on the tunnel roof. This suspension method not only ensures the stability of the protective device 100, enabling it to withstand various external forces during tunneling without shifting or falling off, but also facilitates rapid adjustment of the position of the protective device 100 according to the tunneling progress.

[0030] like Figure 2 As shown, in one specific embodiment, it further includes at least one anchor bolt fixing system 104; the anchor bolt fixing system 104 includes an anchor bolt with a preset length and a support plate disposed at one end of the anchor bolt along its length direction; the anchor bolt is inserted into the coal gangue perpendicularly to the protective net 102, and the support plate is pressed against the protective net 102 or the frame 101.

[0031] In the scheme of this application, the safety protection facilities at the face of a coal mine tunneling face, in addition to a semi-circular frame 101 welded from round steel and a protective net 102 fixed thereon, also include at least one anchor bolt fixing system 104. This anchor bolt fixing system 104 is a crucial guarantee for the stability and reliability of the protection facilities. Specifically, the anchor bolt fixing system 104 includes an anchor bolt of a predetermined length and a support plate located at one end along the length of the anchor bolt. During installation, the anchor bolt is inserted perpendicularly into the coal seam along the protective net 102, while the support plate is pressed firmly against the protective net 102 or the frame 101. This design not only enhances the connection strength between the protection facilities and the roadway structure but also ensures the stability of the protective net 102 at the face, effectively preventing displacement or damage to the protective net 102 due to accidents such as roof collapse or sidewall spalling, thereby providing a safer and more reliable working environment for workers at the coal mine tunneling face.

[0032] In one specific implementation, a U-shaped component is also included for securing the frame 101 to the sidewall of the tunnel.

[0033] In addition to the semi-circular frame 101 welded from round steel, the protective net 102, and the anchor bolt fixing system 104, the safety protection equipment 100 in this application also includes a U-shaped component. The U-shaped component, as an important auxiliary fixing device, primarily functions to firmly fix the frame 101 to the roadway sidewall. By connecting both ends of the U-shaped component to the frame 101 and the roadway sidewall respectively, the overall stability of the protection facility can be further enhanced, ensuring that it will not shift or tilt due to lateral forces during excavation. This setup provides safer protection for workers performing tasks such as roof and sidewall support at the face, effectively reducing safety risks caused by instability in the protection facility.

[0034] In one specific implementation, the lower edge of the protective device 100 is flush with the slag surface 105 of the roadway.

[0035] In the scheme of this application, the lower edge of the protective device 100 in the safety protection facilities at the face of the coal mine tunneling face is designed to be flush with the slag surface 105 of the roadway. The protective net 102 in this application extends from the top of the frame 101 to the slag surface, effectively blocking the coal and gangue falling from the face and preventing them from causing injury to workers and equipment.

[0036] While numerous embodiments of this application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will arise for those skilled in the art without departing from the spirit and intent of this application. It should be understood that various alternatives to the embodiments of this application described herein may be employed in the practice of this application. The appended claims are intended to define the scope of protection of this application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A protective device (100) for the face of a coal mine heading face, characterized in that, include: The frame (101) is an arc-shaped component that fits the top and sidewalls of the tunnel; A protective net (102), which is installed on the frame (101), is used to block coal and gangue; as well as At least one connector (103) is disposed above the frame (101) and is used to secure the protective device (100) to the tunnel roof. It also includes at least one anchor bolt fixing system (104). The anchor bolt fixing system (104) includes an anchor bolt of a preset length and a support plate disposed at one end of the anchor bolt along its length; the anchor bolt is inserted into the coal gangue perpendicular to the protective net (102), and the support plate is pressed against the protective net (102) or the frame (101).

2. The protection device (100) according to claim 1, characterized in that The frame (101) is a semi-circular skeleton structure welded from multiple round steel bars.

3. Protection equipment (100) according to claim 1 or 2, characterized in that The protective net (102) is fixedly connected to the frame (101) by welding or binding.

4. The protection device (100) according to claim 1, characterized in that The connector (103) is a hook made of round steel bent into shape, which suspends the protective equipment (100) on the roof of the tunnel.

5. The protection device (100) according to claim 1, characterized in that It also includes U-shaped parts for securing the frame (101) to the sidewall of the tunnel.

6. The protection device (100) according to claim 1, characterized in that The lower edge of the protective device (100) is flush with the slag surface (105) of the roadway.

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