Accurate detection device suitable for coal mine fire area

By introducing a support plate and screw system into the coal mine fire zone detection device, the problem of limited maintenance space was solved, enabling convenient two-way maintenance and improving maintenance efficiency.

CN224149638UActive Publication Date: 2026-04-21ORDOS JIAXINDE COAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ORDOS JIAXINDE COAL CO LTD
Filing Date
2025-02-24
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The limited internal space for maintenance and operation of existing coal mine fire zone detection devices results in low maintenance efficiency.

Method used

A structure including a filter screen, a detection device body and a screw sleeve is designed. The detection device is stably positioned by a support plate and a screw system. The bottom plate is moved by the cooperation of the handwheel and the screw sleeve to open the bottom opening, which facilitates maintenance from two directions.

Benefits of technology

It improves the efficiency of staff in inspecting and maintaining the internal electronic components of the detection device, and enables convenient two-way inspection and maintenance operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224149638U_ABST
    Figure CN224149638U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of coal mines, in particular to an accurate detection device suitable for a coal mine fire area, and adopts the technical scheme that the accurate detection device comprises a filter screen, a detection device body and screw sleeves, a connecting plate is welded on the front side of the detection device body, two screw rods are movably mounted on the connecting plate, and the two screw sleeves are in meshed connection with the two screw rods; connecting frames are welded to the bottoms of the two threaded sleeves, bottom plates are installed at the rear ends of the two connecting frames, supporting plates are welded to the bottoms of the two bottom plates, fixing plates are welded to the opposite ends of the two supporting plates, threaded holes are formed in the two fixing plates, and threaded rods are in threaded connection with the inner walls of the two threaded holes; and fixing discs are installed at the tops of the screw rods, anti-skid plates are movably installed at the bottoms of the two screw rods, and the filter screen is inserted into the first shell from the inserting hole. The detection device has the advantages that a worker can conveniently overhaul electronic elements in the detection device body from two positions, and the overhaul efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, specifically to a precision detection device suitable for coal mine fire zones. Background Technology

[0002] Coal mines are places where coal resources are extracted underground or in the open. Through mining and refining, coal can be used for power generation, heating, and industrial production, among other things. Coal mines often pose certain safety risks, such as gas explosions and collapses. It is necessary to strictly abide by safety regulations and use relevant equipment to ensure worker safety. With the increasing awareness of environmental protection, alternative energy sources are gradually emerging, which poses a transformation challenge to the coal mining industry. Globally, countries are striving to promote clean energy and sustainable development to reduce dependence on fossil fuels such as coal. The detection devices for coal mine fire zones are usually fire gas detectors. They can monitor the concentration of flammable gases such as carbon monoxide and carbon dioxide and issue timely alarms to help detect and respond to potential fire risks in advance.

[0003] Regular maintenance of the internal components of the precision detection device for coal mine fire zones is crucial. Regular maintenance ensures the normal operation and accuracy of the detection device, allows for the timely detection and resolution of potential problems, and safeguards the safety of the mining area. Currently, when maintaining the internal mechanisms of the detection device, operations are limited to pre-set inspection ports and other structures, resulting in low maintenance efficiency due to the limited space available for operation. Utility Model Content

[0004] The purpose of this utility model is to provide a precise detection device suitable for coal mine fire zones. It has the advantage of allowing workers to easily inspect the electronic components inside the detection device from two locations, thus improving maintenance efficiency and solving the problem of cumbersome maintenance operations on the internal mechanisms of the detection device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A precision detection device suitable for coal mine fire zones, comprising a filter screen, a detection device body, and screw sleeves. A connecting plate is welded to the front side of the detection device body. Two lead screws are movably mounted on the connecting plate. The two screw sleeves are engaged with the two lead screws. A connecting frame is welded to the bottom of each of the two screw sleeves. A base plate is installed at the rear end of each of the two connecting frames. A support plate is welded to the bottom of each of the two base plates. A fixing plate is welded to the opposite end of each of the two support plates. Each of the two fixing plates has a screw hole. A screw rod is threadedly connected to the inner wall of each screw hole. A fixing plate is installed on the top of each screw rod. An anti-slip plate is movably mounted on the bottom of each screw rod. A housing is embedded in the top of the detection device body. An insertion hole is opened on the side of the housing. The filter screen is inserted into the housing through the insertion hole.

[0006] When using the precision detection device for coal mine fire zones according to this technical solution, two support plates provide support for the device body. The support plates move on the ground via pulleys at the bottom. After the two support plates, carrying the device body, are moved to the appropriate position, two fixed plates rotate two screws. The two screws rotate and move within the screw holes of the two fixed plates, causing two anti-slip plates to descend and contact the ground, increasing friction and fixing the device body in place. The power cord and detector data cable are inserted into the connector to provide power and detection information to the device body. The device body collects the information and uses a controller to operate it. The device body transmits the detected carbon monoxide and other substances via a built-in wireless transmission device. The concentration of flammable gases such as carbon dioxide is transmitted to the main control room. The fan draws outside air into the housing. The filter inside the housing absorbs impurities in the air. The air inside the housing enters the detector body to dissipate heat from the electronic components inside the detector body. The air inside the detector body is discharged from the housing. When it is necessary to inspect the electronic components inside the detector body, two handwheels are used to rotate two lead screws. Two screw sleeves move on the two rotating lead screws. The two screw sleeves drive two base plates to move in opposite directions through two connecting brackets. The two base plates drive two support plates to move, opening the opening at the bottom of the detector body. The operator can then inspect the electronic components inside the detector body from two directions, through the bottom of the detector body and the open door.

[0007] Preferably, the outer threads of the two lead screws are distributed in opposite directions, and each of the opposite ends of the two lead screws is equipped with a handwheel, with a distance between the two handwheels and the sides of the detection device body. The two handwheels can be used to rotate the two lead screws without interfering with the detection device body, and the two threaded sleeves can move relative to or in opposite directions on the two lead screws.

[0008] Preferably, a positioning sleeve is installed on the top of each of the two threaded sleeves, and a positioning rod is installed on both sides of the connecting plate, with the two positioning rods passing through the two positioning sleeves. The two positioning rods and the two positioning sleeves limit the movement of the two threaded sleeves. When the two threaded sleeves move, they move on the two positioning rods through the two positioning sleeves, preventing the two threaded sleeves from shaking.

[0009] Preferably, each of the two positioning rods has a baffle installed at its opposite ends, and the outer diameter of the two baffles is larger than the inner diameter of the two positioning sleeves. The two baffles prevent the two positioning rods from slipping out of the two positioning sleeves.

[0010] Preferably, a connector is installed on the front side of the detection device body above the connecting plate, and a door is movably installed on the rear side of the detection device body, with a controller installed on the door. The power cord and the detector's data cable are inserted into the connector to provide power and detection information to the detection device body. The detection device body summarizes the information, and the controller can be used to operate the detection device body.

[0011] Preferably, a fixing groove is provided on the inner side of the housing, and the side of the filter screen inserted into the housing is inserted into the fixing groove. The fixing groove fixes the filter screen inside the housing, preventing the filter screen from shaking when filtering air.

[0012] Preferably, a fan is installed inside the housing one below the filter screen. A fixing hole is provided on one side of the housing one, and a housing two is embedded in the side of the detection device body. A grid frame is installed inside the housing two. A power cord can pass through the fixing hole and connect to the fan to provide power to the fan. The fan draws outside air into the housing one, and the air inside the housing one enters the detection device body to dissipate heat for the electronic components inside the detection device body. The air inside the detection device body is discharged from the housing two, and the grid frame prevents large foreign objects from entering the housing two.

[0013] Preferably, a movable rod is installed on the top of the anti-slip plate, and a movable hole is provided on the fixed plate, through which the top of the movable rod passes. The movable rod limits the movement of the anti-slip plate, and when the anti-slip plate is raised or lowered, the movable rod moves within the movable hole to prevent the anti-slip plate from shaking.

[0014] Preferably, both support plates are symmetrically and movably mounted with pulleys. The support plates can be moved to different positions on the ground via the pulleys.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention, by setting up a door and a base plate, allows for the maintenance of electronic components inside the detection device. Two handwheels rotate two lead screws, causing two threaded sleeves to move on the rotating screws. These sleeves, through two connecting brackets, move two base plates in opposite directions. The base plates then move two support plates, opening the opening at the bottom of the detection device. This allows workers to inspect the electronic components from both the bottom and the opened door, improving maintenance efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0018] Figure 2This is a two-dimensional structural diagram of the present invention from a second angle;

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention from a third angle;

[0020] Figure 4 This is a schematic diagram of the anti-slip plate and fixing plate structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the shell structure of this utility model.

[0022] In the diagram: 1. Support plate; 2. Base plate; 3. Machine door; 4. Anti-slip plate; 5. Pulley; 6. Controller; 7. Housing 1; 8. Filter screen; 9. Positioning rod; 10. Baffle; 11. Lead screw; 12. Handwheel; 13. Detection device body; 14. Fixing plate; 15. Grid frame; 16. Housing 2; 17. Wiring head; 18. Positioning sleeve; 19. Connecting plate; 20. Screw sleeve; 21. Connecting frame; 22. Screw hole; 23. Screw; 24. Fixing plate; 25. Movable rod; 26. Movable hole; 27. Fixing hole; 28. Fixing groove; 29. ​​Insertion hole; 30. Fan. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figures 1-5As shown, this utility model proposes a precision detection device suitable for coal mine fire zones, including a filter screen 8, a detection device body 13, and screw sleeves 20. A connector 17 is installed on the front side of the detection device body 13 above the connecting plate 19. A door 3 is movably installed on the rear side of the detection device body 13, and a controller 6 is installed on the door 3. A connecting plate 19 is welded to the front side of the detection device body 13, and two lead screws 11 are movably installed on the connecting plate 19. The outer threads of the two lead screws 11 are distributed in opposite directions. A handwheel 12 is installed at the opposite ends of the two lead screws 11, and a distance is left between the two handwheels 12 and the sides of the detection device body 13. Two screw sleeves 20 are engaged with the two lead screws 11. A positioning sleeve 18 is installed on the top of each screw sleeve 20. Positioning rods 9 are installed on both sides of the connecting plate 19, and the two positioning rods 9 pass through the two positioning sleeves 18. A baffle 10 is installed at the opposite ends of the two positioning rods 9, and the outer diameter of the two baffles 10 is larger than the inner diameter of the two positioning sleeves 18. The bottom of each of the two devices is welded with a connecting frame 21. The rear end of each connecting frame 21 is equipped with a base plate 2. The bottom of each base plate 2 is welded with a support plate 1. Each support plate 1 is symmetrically and movably equipped with a pulley 5. The opposite end of each support plate 1 is welded with a fixing plate 14. Each fixing plate 14 has a screw hole 22. The inner wall of each screw hole 22 is threaded with a screw rod 23. The top of the screw rod 23 is equipped with a fixing plate 24. The bottom of each screw rod 23 is movably equipped with an anti-slip plate 4. The top of the detection device body 13 is embedded with a housing 7. The side of the housing 7 has an insertion hole 29. The filter 8 is inserted into the housing 7 through the insertion hole 29. The side of the housing 7 has a fixing groove 28. The side of the filter 8 inserted into the housing 7 is inserted into the fixing groove 28. The housing 7 below the filter 8 is equipped with a fan 30. The side of the housing 7 has a fixing hole 27. The side of the detection device body 13 is embedded with a housing 16. The mesh frame 15 is installed inside the housing 16.

[0029] In this embodiment, two support plates 1 provide support for the detection device body 13. The support plates 1 move on the ground via pulleys 5 at the bottom. After the two support plates 1 carry the detection device body 13 to a suitable position, two fixing plates 24 rotate two screws 23. The two screws 23 rotate and move within the screw holes 22 of the two fixing plates 14. The two screws 23 drive the two anti-slip plates 4 to descend, making them contact the ground and increasing the friction with the ground, thus fixing the position of the detection device body 13. The power cord and the detector's data cable are inserted into the connector 17 to provide power and detection information to the detection device body 13. The detection device body 13 summarizes the information and uses the controller 6 to operate the detection device body 13. The detection device body 13 transmits the detected concentration of flammable gases such as carbon monoxide and carbon dioxide through a built-in wireless transmission device. The temperature is transmitted to the main control room. The fan 30 draws outside air into the housing 7. The filter 8 inside the housing 7 adsorbs impurities in the air. The air inside the housing 7 enters the detector body 13 to dissipate heat for the electronic components inside the detector body 13. The air inside the detector body 13 is discharged from the housing 16. When it is necessary to repair the electronic components inside the detector body 13, the two handwheels 12 are used to rotate the two lead screws 11. The two screw sleeves 20 move on the two rotating lead screws 11. The two screw sleeves 20 drive the two base plates 2 to move in opposite directions through the two connecting brackets 21. The two base plates 2 drive the two support plates 1 to move, opening the opening at the bottom of the detector body 13. The staff can repair the electronic components inside the detector body 13 from two directions, through the bottom of the detector body 13 and the open door 3.

[0030] Example 2

[0031] like Figures 1-5 As shown, the present invention proposes a precision detection device suitable for coal mine fire zones. Compared with Embodiment 1, this embodiment further includes: a movable rod 25 and a movable hole 26. The movable rod 25 is installed on the top of the anti-slip plate 4, and the movable hole 26 is opened on the fixed plate 14. The top of the movable rod 25 passes through the movable hole 26.

[0032] In this embodiment, the movable rod 25 limits the anti-slip plate 4. When the anti-slip plate 4 is raised or lowered, the movable rod 25 moves within the movable hole 26 to prevent the anti-slip plate 4 from shaking.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A precision detection device suitable for coal mine fire area, comprising a filter screen (8), a detection device body (13) and a screw sleeve (20), characterized in that: A connecting plate (19) is welded to the front side of the main body (13) of the detection device. Two lead screws (11) are movably mounted on the connecting plate (19). Two threaded sleeves (20) are engaged with the two lead screws (11). A connecting frame (21) is welded to the bottom of each of the two threaded sleeves (20). A base plate (2) is installed at the rear end of each of the two connecting frames (21). A support plate (1) is welded to the bottom of each of the two base plates (2). A fixing plate (1) is welded to the opposite end of each of the two support plates (1). 4) Both of the fixing plates (14) are provided with screw holes (22), and screw rods (23) are threadedly connected to the inner walls of the two screw holes (22). A fixing plate (24) is installed on the top of the screw rods (23), and anti-slip plates (4) are movably installed on the bottom of the two screw rods (23). A housing (7) is embedded in the top of the detection device body (13), and an insertion hole (29) is provided on the side of the housing (7). The filter (8) is inserted into the housing (7) through the insertion hole (29).

2. The precision detection device for coal mine fire area of claim 1, wherein: The outer threads of the two lead screws (11) are distributed in opposite directions, and a handwheel (12) is installed at the opposite ends of the two lead screws (11). There is a distance between the two handwheels (12) and the two sides of the detection device body (13).

3. The precision detection device for coal mine fire area of claim 1, wherein: The top of each of the two threaded sleeves (20) is equipped with a positioning sleeve (18), and the two sides of the connecting plate (19) are equipped with positioning rods (9), which pass through the two positioning sleeves (18).

4. The precision detection device for coal mine fire area of claim 3, wherein: Each of the two positioning rods (9) has a baffle (10) installed at one end opposite to the other. The outer diameter of the two baffles (10) is larger than the inner diameter of the two positioning sleeves (18).

5. The precision detection device for coal mine fire area of claim 1, wherein: A connector (17) is installed on the front side of the detection device body (13) above the connecting plate (19), and a door (3) is movably installed on the rear side of the detection device body (13), with a controller (6) installed on the door (3).

6. The precision detection device for coal mine fire area of claim 1, wherein: The inner side of the housing (7) is provided with a fixing groove (28), and the filter screen (8) is inserted into the fixing groove (28) on one side of the housing (7).

7. A precision detection device for coal mine fire zones according to claim 1, characterized in that: A fan (30) is installed inside the housing 1 (7) below the filter screen (8). A fixing hole (27) is opened on the side of the housing 1 (7) on one side of the fan (30). A housing 2 (16) is embedded in the side of the detection device body (13). A grid frame (15) is installed inside the housing 2 (16).

8. The precision detection device for coal mine fire area of claim 1, wherein: The anti-slip plate (4) is equipped with a movable rod (25) on its top, and the fixed plate (14) has a movable hole (26) through which the top of the movable rod (25) passes.

9. The precision detection device for coal mine fire area of claim 1, wherein: Both of the support plates (1) are symmetrically and movably equipped with pulleys (5).