Protective device for coal mine operation

Abstract

The utility model provides a protective device for coal mine operation. The protective device comprises a plurality of supporting assemblies, a protective net and a fixing device. Each supporting assembly comprises a left side part, a connecting rod and a right side part; the two sides of the connecting rod are in threaded connection with the left side part and the right side part respectively, and the right side part and the left side part are symmetrical about the central axis of the connecting rod; the surface of the protective net is hollowed out and forms a plurality of mounting nodes; one end of the fixing device is arranged on the mounting node, and the other end of the fixing device is arranged on the mounting node; when maintenance operation is carried out, the at least two sets of supporting assemblies abut against the wall of the mine field, and therefore a protective layer is formed between the material opening and the maintenance position. The framework structure for supporting the protective net is jointly formed by the multiple sets of supporting assemblies, in the overhauling process, the two ends of each supporting assembly abut against the wall of the mine field, so that the protective net is unfolded above the overhauling position, and the working safety of overhauling personnel is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine excavation site operation safety, and in particular relates to a protective device used for coal mine operations. Background Art

[0002] At the coal mining site, the material opening is an important material transportation channel, and its safe operation is crucial to the entire operation process. When performing maintenance work below the material opening, operators face the risk of materials accidentally falling into the opening, which not only affects the smooth progress of the maintenance work, but may also cause personal injury to the operators. Although the current measures are to clear the materials above and around the material opening as much as possible, due to time and space constraints, the cleaning effect is often unsatisfactory. In addition, during the maintenance process, the disturbance of the maintenance work will inevitably affect the materials above the material opening, which not only affects the maintenance work, but also poses a hidden danger to the personal safety of the operators. Utility Model Content

[0003] In order to solve the problem described in the background technology that during the maintenance process, the disturbance of the maintenance work will inevitably affect the material above the material inlet, which not only affects the maintenance work, but also poses a hidden danger to the personal safety of the operators, the utility model proposes the following technical solutions:

[0004] A protective device for coal mine operations, comprising: multiple groups of support components, a protective net and a fixing device; each group of the support components comprises: a left side portion, a connecting rod and a right side portion; one side of the left side portion is rotatably arranged relative to the other side of the left side portion; the two sides of the connecting rod are respectively threadedly connected to the left side portion and the right side portion, and the right side portion and the left side portion are symmetrical about the central axis of the connecting rod; the surface of the protective net is hollowed out and forms a plurality of installation nodes; one end of the fixing device is arranged on the installation node, and the other end of the fixing device is arranged on the installation node, and when performing maintenance work, at least two groups of the support components are abutted against the wall of the mine, thereby forming a protective layer between the material opening and the maintenance position.

[0005] Wherein, the connecting rod includes: a sleeve and a support member arranged between two sleeves; one end of each sleeve is threadedly connected to the left side portion or the right side portion, and the two ends of the support member are respectively abutted against one of the sleeves, thereby making the left side portion and the right side portion abut against the wall of the mine respectively.

[0006] Furthermore, the diameter of one end of the sleeve is greater than the diameter of the other end of the sleeve.

[0007] Furthermore, a plurality of ribs are provided at intervals on the outer peripheral surface of one side of the sleeve, and each of the ribs extends along the axial direction of the sleeve; and a limiting groove matching the ribs is provided on the inner wall of the other side of the sleeve.

[0008] Further, a side of the left side portion or the right side portion away from the connecting rod is a variable diameter structure, and an end surface of a side of the left side portion or the right side portion away from the connecting rod is horizontal.

[0009] Furthermore, a side of the left side portion away from the connecting rod extends vertically downward to form a loading portion, and a surface of the loading portion is provided with a hoisting hole parallel to the axial direction of the connecting rod.

[0010] Furthermore, the fixing device includes a hairy surface and a hook surface, and the hairy surface and the hook surface are glued and fixed to the upper and lower surfaces of the installation node, and the protective net and the supporting assembly are fixedly connected by the adhesion between the hairy surface and the hook surface.

[0011] Beneficial effects: The utility model forms a skeleton structure for supporting the protective net through multiple groups of supporting components. During the maintenance process, the two ends of the supporting components are respectively against the walls of the mine, so that the protective net is deployed above the maintenance position, thereby ensuring the work safety of the maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a protective device for coal mine operation according to an embodiment of the utility model;

[0013] Figure 2 It is a structural schematic diagram of a support assembly according to an embodiment of the utility model;

[0014] Figure 3 It is a schematic cross-sectional view of a sleeve according to an embodiment of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present application clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] It should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0017] Figure 1 The figure is a schematic diagram of the structure of a protective device for coal mine operation according to an embodiment of the utility model.

[0018] Reference Figure 1 According to an embodiment of the utility model, a protective device for coal mine operation includes: multiple groups of support components 1, protective nets 2 and fixing devices 3. Each group of support components 1 includes a left side portion 11, a connecting rod 12 and a right side portion 13. One side of the left side portion 11 can be rotatably arranged relative to the other side to adapt to walls or slopes at different angles. The surface of the protective net 2 is hollowed out and forms a plurality of mounting nodes for connecting the fixing device 3. One end of the fixing device 3 is arranged on the mounting node, and the other end of the fixing device 3 is fixedly connected to the support component 1 to ensure that the protective device is stable and reliable.

[0019] When performing maintenance operations, at least two groups of support assemblies 1 are against the wall of the mine. By adjusting the rotation setting of the left side portion 11, the support assembly 1 is closely fitted to the wall, thereby forming a protective layer between the material inlet and the maintenance position to ensure the safety of the operators.

[0020] Specifically, the connecting rod 12, as a key part of the support assembly 1, directly affects the stability and reliability of the protective device. The connecting rod 12 is composed of two sleeves 121 and a support member 122 arranged therebetween. The sleeve 121 is usually made of high-strength materials, such as alloy steel or engineering plastics, to ensure its durability in the harsh environment of the mine. The support member 122 is located between the two sleeves 121, which plays a role of reinforcement and connection, ensuring that the left side 11 and the right side 13 can effectively abut against the mine wall. One end of each sleeve 121 is connected to the left side 11 or the right side 13 through a threaded connection. This threaded connection method not only provides a firm connection point, but also allows rapid assembly and disassembly, which is crucial for rapid response and maintenance in mine operations. The design of the threaded connection can also prevent the connection part from loosening when it is impacted or vibrated, thereby ensuring the stability of the entire protective device.

[0021] Figure 2 It is a structural schematic diagram of a support assembly 1 according to an embodiment of the utility model.

[0022] Figure 3 It is a schematic cross-sectional view of a sleeve according to an embodiment of the utility model.

[0023] Refer to Figure 2 and Figure 3Furthermore, the diameters of the two ends of each sleeve 121 are different, and the diameter of one end of each sleeve 121 close to the left side portion 11 or the right side portion 13 is larger than the diameter of the other end. A plurality of ribs 4 are arranged at intervals on the outer circumference of one side of each sleeve 121, and a plurality of limit grooves 5 matching the ribs 4 are arranged on the inner wall of the other side of each sleeve 121. During the assembly process, if the length of the connecting rod 12 is insufficient, it can be passed between multiple sleeves 121 (at least two).

[0024] Continue to refer to Figure 2 , further, the side of the left side 11 or the right side 13 away from the connecting rod 12 is a variable diameter structure, and the end surface of the side of the left side 11 or the right side 13 away from the connecting rod 12 is horizontal. In this embodiment, the side of the left side 11 and the right side 13 that contacts the mine wall is a spherical support seat 6, which is truncated cone-shaped as a whole, and its end is rotatably connected to the other side to adapt to walls of various angles. The left side 11 or the right side 13 and the side away from the connecting rod 12 are provided with a loading portion 111 extending downward, and the surface of the loading portion 111 is provided with a hoisting hole parallel to the axial direction of the connecting rod 12. When the operator starts to perform maintenance, a safety rope is passed through the hoisting hole to ensure the safe operation of the maintenance personnel.

[0025] Specifically, the fixing device 3 includes a fur surface portion and a hook surface portion. The fur surface portion is glued and fixed on the installation node, and the hook surface portion is fixed on the support component 1, wherein the fixing method includes but is not limited to glue fixing or sewing. The protective net 2 and the support component 1 are fixedly connected by the adhesion between the fur surface portion and the hook surface portion. Preferably, the fixing device 3 is a flexible member with adhesion such as Velcro. Furthermore, when fixing, the protective net 2 or the support component 1 can be rotated so that the hook surface portion and the fur surface portion on the protective net 2 can be further stabilized and fixed under the action of winding. In addition, in the present application, the spacing between each installation node and the size of the protective net 2 can be set as needed.

[0026] In summary, the utility model forms a skeleton structure supporting the protective net through multiple groups of supporting components. During the maintenance process, the two ends of the supporting components are respectively against the walls of the mine, so that the protective net is deployed above the maintenance position, thereby ensuring the work safety of the maintenance personnel.

[0027] The above description is of certain embodiments of the invention. Other embodiments are within the scope of the following claims.

[0028] The terms "exemplary," "example," and the like used throughout this specification mean "used as an example, instance, or illustration" and do not mean "preferred" or "advantageous" over other embodiments. The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques can be implemented without these specific details. In some instances, in order to avoid obscuring the concepts of the described embodiments, well-known structures and devices are shown in block diagram form.

[0029] The optional implementation modes of the embodiments of the utility model are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the utility model are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the utility model, the technical scheme of the embodiments of the utility model can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the embodiments of the utility model.

[0030] The above description of the contents of this specification is provided to enable any person of ordinary skill in the art to implement or use the contents of this specification. Various modifications to the contents of this specification will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of protection of the contents of this specification. Therefore, the contents of this specification are not limited to the examples and designs described herein, but are consistent with the widest range of principles and novel features disclosed herein.

Claims

1. A protective device for coal mine operations, characterized in that: include: A plurality of support components (1), a protective net (2) and a plurality of fixing devices (3); Each group of the support components (1) comprises: a left side portion (11), a connecting rod (12) and a right side portion (13); one side of the left side portion (11) is rotatably arranged relative to the other side of the left side portion (11); the two sides of the connecting rod (12) are respectively threadedly connected to the left side portion (11) and the right side portion (13), and the right side portion (13) and the left side portion (11) are symmetrical about the central axis of the connecting rod (12); the surface of the protective net (2) is hollowed out to form a plurality of installation nodes; one end of the fixing device (3) is arranged on the installation node, and the other end of the fixing device (3) is fixedly connected to the support component (1); when performing maintenance operations, at least two groups of the support components (1) are against the wall of the mine, thereby forming a protective layer between the material inlet and the maintenance position.

2. A protective device for coal mine operation according to claim 1, characterized in that: The connecting rod (12) comprises: a sleeve (121) and a support member (122) arranged between two sleeves (121); one end of each sleeve (121) is threadedly connected to the left side portion (11) or the right side portion (13), and both ends of the support member (122) are respectively abutted against one of the sleeves (121), thereby making the left side portion (11) and the right side portion (13) abut against the wall of the mine respectively.

3. A protective device for coal mine operation according to claim 2, characterized in that: The diameter of one end of the sleeve (121) is greater than the diameter of the other end of the sleeve (121).

4. A protective device for coal mine operation according to claim 3, characterized in that: A plurality of ribs (4) are arranged at intervals on the outer peripheral surface of one side of the sleeve (121), and each of the ribs (4) extends along the axial direction of the sleeve (121); and a limiting groove (5) matching the rib (4) is arranged on the inner wall of the other side of the sleeve (121).

5. A protective device for coal mine operation according to claim 2, characterized in that: The side of the left side (11) or the right side (13) away from the connecting rod (12) is a variable diameter structure, and the end surface of the side of the left side (11) or the right side (13) away from the connecting rod (12) is horizontal.

6. A protective device for coal mine operation according to claim 5, characterized in that: A side of the left side portion (11) away from the connecting rod (12) extends vertically downward to form a loading portion (111), and a surface of the loading portion (111) is provided with a lifting hole parallel to the axial direction of the connecting rod (12).

7. A protective device for coal mine operation according to claim 5, characterized in that: The fixing device (3) comprises a hairy surface and a hook surface, and the hairy surface and the hook surface are glued and fixed to the upper and lower surfaces of the installation node, and the protective net (2) and the supporting component (1) are fixedly connected by the adhesion between the hairy surface and the hook surface.

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