A warning device for coal mining
By designing a combination of base, warning cylinder, positioning cone, and extension mechanism, the problem of disassembly of existing coal mining warning devices has been solved, achieving stable positioning and convenient disassembly, expanding the warning range, and improving the ease of use and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI DESIGN & RES INST LLC OF COAL IND
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-26
AI Technical Summary
Existing coal mining warning devices are difficult to disassemble after installation, and the fixing rods are difficult to remove, affecting the convenience and safety of the devices.
A warning device comprising a base, a warning cone, a positioning mechanism, and an extension mechanism was designed. The combination of a positioning cone and a pressure block enables stable positioning and easy disassembly of the warning cone. The extension mechanism enhances the warning range and portability through the design of fluorescent canvas and a positioning magnetic plate.
It achieves stable positioning and convenient disassembly of the warning device, expands the warning range, and improves the ease of use and safety of the device.
Smart Images

Figure CN224281087U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment technology for coal mines, and in particular to a warning device for coal mining. Background Technology
[0002] Coal deposits are layered, widely distributed, and have large reserves. The coal is brittle and easily cut and broken, and mining often involves threats from water, fire, and gas. Compared to other mineral deposits, coal mining technology has some unique characteristics. Mining methods are divided into open-pit and underground mining, typically using mechanized methods; a small number use hydraulic mining. However, during coal mining, warning devices must be installed in the mine tunnels to indicate dangerous areas, allowing workers to be aware of these areas and preventing them from approaching and causing safety hazards.
[0003] In existing technologies, warning devices used in coal mining generally consist of a fixed rod and a warning sign. The fixed rod is inserted into the soil or coal seam, and the warning sign is hooked onto the top of the fixed rod to provide a warning. However, after installation, the fixed rod needs to be inserted deep into the soil or coal seam to enhance the stability of the device, making it difficult to remove the fixed rod during disassembly. Therefore, we propose a warning device for coal mining. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a warning device for coal mining.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a warning device for coal mining, comprising a base, a warning cylinder fixedly connected to the top of the base, a piercing hole penetrating the bottom of the base at the top of the warning cylinder, a positioning mechanism inside the warning cylinder for fixing the warning cylinder; and an extension mechanism on both sides of the warning cylinder for extending the warning range.
[0006] The positioning mechanism includes a positioning cone rod that passes through the puncture hole. A pressure block is fixedly connected to the top of the positioning cone rod, and a prying groove is provided at the bottom of the pressure block.
[0007] The bottom outer wall of the positioning cone rod is provided with a guide groove, and an anti-detachment ring is fixedly connected to the middle section of the positioning cone rod. The outer diameter of the anti-detachment ring is larger than the inner diameter of the puncture hole.
[0008] The extension mechanism includes storage slots on both sides of the warning cone post. A storage box frame is fixedly connected to the inner wall of the storage slot. A warning tape is fixedly connected inside the storage box frame. A display board is fixedly connected to one end of the warning tape. One end of the display board is movably connected to the storage slot via a pivot.
[0009] The warning tape is made of fluorescent canvas, and positioning magnetic plates are fixedly connected to both sides of the warning tape.
[0010] The outer wall of the display panel is fixedly connected with a pull handle, and the display panel is made of a hollow metal plate with magnets fixed inside.
[0011] The warning cone is hexagonal in shape, and a protective plate is fixedly connected to the outer wall of the warning cone. The protective plate is made of reflective resin material.
[0012] The base and the warning cone are an integral structure, and the size of the base is larger than the size of the bottom end of the warning cone. The bottom end of the base is provided with an anti-slip groove.
[0013] Beneficial effects:
[0014] 1. This utility model uses a positioning cone rod that penetrates the inside of the puncture hole, allowing it to move vertically up and down along the warning cone post, penetrating into the soil or coal seam to position the warning cone post. Simultaneously, a pressure block fixedly connected to the top of the positioning cone rod increases the striking area at the top, facilitating the downward movement of the positioning cone rod by striking the pressure block with a tool, thus penetrating the soil or coal seam. Furthermore, a prying groove at the bottom of the pressure block allows a pry bar to be inserted, utilizing the lever principle to pry the pressure block with the top of the warning cone post as a base point. This more easily expands the distance between the pressure block and the top of the warning cone post, moving the positioning cone rod upward and detaching it from the soil or coal seam, thus solving the problems of inconvenient fixing and difficult disassembly of existing warning devices.
[0015] 2. This utility model allows the display board to be easily moved by pulling one end of the display board to the inner wall of the storage slot, so that the display board can be separated from the storage box frame. The display board can then be tilted with the pivot connecting the display board and the storage slot as the base point, thereby unfolding the entire warning tape. The warning tape expands the warning range of the warning cone stake. Moreover, the unfoldable and retractable warning tape also reduces the footprint of the entire warning device, making it convenient to carry and deploy. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the first perspective of the structure of this utility model;
[0017] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;
[0018] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention;
[0019] Figure 4 A schematic diagram of the three-dimensional structure of the extended mechanism.
[0020] Legend:
[0021] 1. Base; 2. Warning cone post; 3. Positioning mechanism; 4. Expansion mechanism; 5. Puncture hole; 6. Protective plate; 7. Positioning cone rod; 8. Pressure block; 9. Pry groove; 10. Guide groove; 11. Anti-detachment ring; 12. Storage groove; 13. Storage box rack; 14. Warning tape; 15. Display board; 16. Positioning magnetic plate; 17. Pull-out handrail. Detailed Implementation
[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0024] Reference Figures 1-4 A warning device for coal mining includes a base 1, a warning cylinder 2 fixedly connected to the top of the base 1, a piercing hole 5 at the top of the warning cylinder 2 that penetrates the bottom of the base 1, a positioning mechanism 3 inside the warning cylinder 2 for fixing the warning cylinder 2, and an extension mechanism 4 on both sides of the warning cylinder 2 for extending the warning range.
[0025] The base 1 provides support for the warning cone 2, improving its stability during placement. The warning cone 2 can be used to warn and remind people in dangerous areas within the mine. The positioning mechanism 3 inside the warning cone 2 allows it to be inserted into the ground for fixation, enhancing its stability. The expansion mechanism 4 on both sides of the warning cone 2 expands its warning area, improving its effectiveness.
[0026] like Figures 1-3 As shown, the positioning mechanism 3 includes a positioning cone rod 7 that penetrates the puncture hole 5. A pressure block 8 is fixedly connected to the top of the positioning cone rod 7. A prying groove 9 is provided at the bottom of the pressure block 8. The positioning cone rod 7, which penetrates the puncture hole 5, can move vertically up and down along the warning cone post 2 and penetrate into the soil or coal seam to position the warning cone post 2. The pressure block 8 fixedly connected to the top of the positioning cone rod 7 increases the striking area of the top of the positioning cone rod 7, so that the positioning cone rod 7 can be moved downward by striking the pressure block 8 with a tool and penetrate into the soil or coal seam. At the same time, the prying groove 9 provided at the bottom of the pressure block 8 can be used to insert a pry bar into the prying groove 9 to expand the distance between the pressure block 8 and the top of the warning cone post 2, so that the positioning cone rod 7 can be removed from the soil or coal seam.
[0027] like Figures 1-3 As shown, a guide groove 10 is provided on the outer wall of the bottom of the positioning cone rod 7, and an anti-detachment ring 11 is fixedly connected to the middle section of the positioning cone rod 7. The outer diameter of the anti-detachment ring 11 is larger than the inner diameter of the piercing hole 5. Through the guide groove 10 provided on the outer wall of the bottom of the positioning cone rod 7, the soil or coal seam can be diverted by the guide groove 10 after the positioning cone rod 7 penetrates into the soil or coal seam, which facilitates the penetration of the positioning cone rod 7. At the same time, the setting of the guide groove 10 also increases the contact area between the positioning cone rod 7 and the soil or coal seam, making it less likely for the positioning cone rod 7 to rotate and detach from the soil or coal seam.
[0028] like Figures 1-4 As shown, the extension mechanism 4 includes storage slots 12 on both sides of the warning cone post 2. A storage box frame 13 is fixedly connected to the inner wall of the storage slot 12. A warning tape 14 is fixedly connected inside the storage box frame 13. A display board 15 is fixedly connected to one end of the warning tape 14. One end of the display board 15 is movably connected to the storage slot 12 through a pivot. Pulling one end of the display board 15 causes it to detach from the storage box frame 13. Due to its own weight, the display board 15 will tilt around the pivot connecting the display board 15 and the storage slot 12, thereby unfolding the entire warning tape 14 and expanding the warning range of the warning cone post 2.
[0029] like Figures 1-4 As shown, the warning tape 14 is made of fluorescent canvas, and multiple sets of positioning magnetic plates 16 are fixedly connected to both sides of the warning tape 14. The warning tape 14 made of fluorescent canvas will reflect light when illuminated, enhancing the warning effect. The multiple sets of positioning magnetic plates 16 fixedly connected to both sides of the warning tape 14 can attract each other. The mutually attracted positioning magnetic plates 16 will clamp part of the warning tape 14, thereby reducing the space occupied by the warning tape 14 and making it convenient to fold and store the warning tape 14.
[0030] like Figures 1-4 As shown, a pull handle 17 is fixedly connected to the outer wall of the display panel 15. The display panel 15 is made of a hollow metal plate with magnets fixed inside. The pull handle 17 fixedly connected to the outer wall of the display panel 15 makes it easy to pull the display panel 15. The display panel 15 with magnets fixed inside can be magnetically connected to the storage box rack 13.
[0031] like Figures 1-3 As shown, the warning cone 2 is generally hexagonal in shape, and a protective plate 6 is fixedly connected to the outer wall of the warning cone 2. The protective plate 6 is made of reflective resin material. The hexagonal warning cone 2 has 6 protective plates to facilitate warnings from different directions. At the same time, the protective plate 6 fixedly connected to the outer wall of the warning cone 2 can protect the warning cone 2 while reflecting light from multiple directions, thereby increasing the warning intensity.
[0032] like Figures 1-3As shown, the base 1 and the warning cylinder 2 are an integral structure, and the size of the base 1 is larger than the bottom size of the warning cylinder 2. The bottom of the base 1 is provided with an anti-slip groove. The integral structure of the base 1 and the warning cylinder 2 greatly improves the strength of the entire device and avoids deformation that may affect its use. In addition, the anti-slip groove at the bottom of the base 1 can enhance the friction between the base 1 and the ground, thereby improving the stability of the entire device when it is placed.
[0033] The working principle of this utility model is as follows: Place the entire device in the area requiring warning within the mine, ensuring the base 1 is in contact with the soil or coal seam. Then, use a tool to strike the pressure block 8, causing the positioning cone 7 to be pressed down and penetrate the soil or coal seam. Next, pull the pull handle 17 fixedly connected to the outer wall of the display plate 15 to unfold the warning tape 14, expanding the warning area. This completes the installation of the entire device. When disassembly is required, move the positioning magnetic plates 16 fixedly connected to both sides of the warning tape 14, causing the magnetic plates 16 to attract and adhere to each other, thus activating the warning signal. The display strip 14 is stored away, and then the display board 15 is pushed back to the side of the storage box frame 13, where it is attracted to the storage box frame 13. Finally, the positioning cone rod 7 is pulled out of the soil or coal seam, thus completing the disassembly and storage of the entire device. When the positioning cone rod 7 is deeply embedded in the soil or coal seam and difficult to pull out manually, a crowbar can be inserted into the prying groove 9 and one end of the crowbar can be pressed down. Using the lever principle, the top of the warning cylinder 2 is used as the base point to pry the pressure block 8, expanding the distance between the warning cylinder 2 and the pressure block 8, which will cause the positioning cone rod 7 to move upward and detach from the soil or coal seam.
[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A warning device for coal mining characterised by: Includes a base (1), the top of which is fixedly connected to a warning cylinder (2), the top of which is provided with a piercing hole (5) that penetrates the bottom of the base (1), and the inside of the warning cylinder (2) is provided with a positioning mechanism (3), which is used to fix the warning cylinder (2); Both sides of the warning cone post (2) are provided with an extension mechanism (4), which is used to extend the warning range.
2. A warning device for coal mining according to claim 1, characterized in that: The positioning mechanism (3) includes a positioning cone rod (7) that passes through the puncture hole (5). A pressure block (8) is fixedly connected to the top of the positioning cone rod (7), and a prying groove (9) is provided at the bottom of the pressure block (8).
3. A warning device for coal mining according to claim 2, characterized in that: The bottom outer wall of the positioning cone rod (7) is provided with a guide groove (10), and the middle section of the positioning cone rod (7) is fixedly connected with an anti-detachment ring (11), the outer diameter of the anti-detachment ring (11) being larger than the inner diameter of the puncture hole (5).
4. A warning device for coal mining according to claim 1, characterized in that: The extension mechanism (4) includes a storage slot (12) on both sides of the warning cylinder (2). A storage box frame (13) is fixedly connected to the inner wall of the storage slot (12). A warning tape (14) is fixedly connected inside the storage box frame (13). A display board (15) is fixedly connected to one end of the warning tape (14). One end of the display board (15) is movably connected to the storage slot (12) through a pivot.
5. A warning device for coal mining according to claim 4, characterized in that: The warning tape (14) is made of fluorescent canvas, and positioning magnetic plates (16) are fixedly connected to both sides of the warning tape (14).
6. A warning device for coal mining according to claim 4, characterized in that: The outer wall of the display panel (15) is fixedly connected with a pull handle (17), and the display panel (15) is made of a hollow metal plate with magnets fixed inside.
7. A warning device for coal mining according to claim 1, characterized in that: The warning cylinder (2) is in the shape of a hexagonal cylinder, and a protective plate (6) is fixedly connected to the outer wall of the warning cylinder (2). The protective plate (6) is made of reflective resin material.
8. A warning device for coal mining according to claim 1, characterized in that: The base (1) and the warning cone (2) are an integral structure, and the size of the base (1) is larger than the bottom size of the warning cone (2). The bottom of the base (1) is provided with an anti-slip groove.