A coal mine ventilation safety monitoring device
The filter cartridge design, which combines linkage and brush cleaning, solves the problem of easy clogging of the filter screen and improves the working efficiency and monitoring accuracy of ventilation safety monitoring devices used in coal mines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUADIAN COAL IND GRP DIGITAL INTELLIGENCE TECH CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-21
AI Technical Summary
The filters of existing ventilation safety monitoring devices in coal mines are prone to clogging, leading to cumbersome operation and reduced work efficiency.
Through the coordinated operation of various components, the filter cartridge rotates synchronously during its reciprocating sliding process, and the brush bristles perform all-round cleaning, thereby extending the service life of the filter cartridge.
It enables comprehensive cleaning of dust on the outer wall of the filter cartridge, extends the service life of the filter cartridge, and improves work efficiency and the accuracy of monitoring data.
Smart Images
Figure CN224532763U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mine safety equipment technology, and more specifically, it relates to a ventilation safety monitoring device for coal mines. Background Technology
[0002] Mine ventilation refers to the process of introducing fresh air into the mine to increase oxygen concentration, thereby diluting and removing toxic and harmful gases and dust. The basic tasks of mine ventilation are: to supply sufficient fresh air underground to meet the oxygen needs of personnel; to dilute harmful gases and dust underground to ensure safe production; and to regulate the underground climate to create a good working environment. To ensure that underground airflow flows and is distributed along designated routes, ventilation systems must be constructed in certain roadways to guide and control airflow. These systems are divided into those that guide airflow and those that isolate airflow.
[0003] In existing coal mine ventilation safety monitoring devices, the air contains a large amount of dust and needs to be filtered first. The air is then drawn into the monitoring box by the exhaust fan and discharged through the exhaust vent. The hydrogen sulfide sensor can detect hydrogen sulfide gas in the coal mine and will trigger an alarm when the concentration exceeds the standard. However, the filter is easily clogged, and the user needs to remove the filter, clean it, and then reinstall it on the equipment. This cumbersome operation results in long downtime for the exhaust fan, affecting work efficiency. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a ventilation safety monitoring device for coal mines. Through the linkage and cooperation between various components, each filter cylinder can be synchronously rotated during the reciprocating sliding process. With the help of brush bristles, the dust on the outer wall of the filter cylinder can be cleaned in all directions, thereby increasing the service life of the filter cylinder and improving work efficiency.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A ventilation safety monitoring device for coal mines includes a monitoring frame; the monitoring frame includes a top cover; a filter section is fixedly installed below the top cover; the filter section includes a protective box; several sliding tubes are slidably arranged through the bottom surface of the protective box; filter cylinders are fixedly connected to the bottom ends of the sliding tubes; connecting sleeves are rotatably arranged at the top ends of the sliding tubes; a lead screw is rotatably arranged through the bottom surface of the protective box; a lifting part that is hinged to each connecting sleeve is screwed onto the lead screw; several inclined plates are evenly fixed to the bottom surface of the protective box; ear rods are fixed to the sides of the inclined plates; ball heads are fixed to the ends of the ear rods; a spiral groove adapted to the ball head is opened on the outer wall of the sliding tube; an extension plate is fixed to the bottom end of the lead screw; a conical platform adapted to each filter cylinder is fixed between the two ends of the extension plate; several bristles are evenly arranged on the outer wall of the conical platform.
[0007] The present invention is further configured such that: L-shaped support plates are symmetrically fixed on the surface of the top cover; an annular support seat is fixed between the bottom ends of the two L-shaped support plates; an annular groove is opened on the bottom surface of the top cover to fit into the top of the protective box; connecting flanges are fixed on the outer wall of the protective box and the top cover; the two connecting flanges are fixedly connected by fastening bolts.
[0008] The present invention is further configured such that: a servo motor is fixedly installed on the surface of the top cover; a plug-in rail is fixedly installed at the output end of the servo motor; and a plug-in groove is provided at the top end of the lead screw to engage with the plug-in rail.
[0009] The present invention is further configured such that: a ring-shaped monitoring box is fixed on the surface of the top cover; several air inlet pipes are uniformly fixed through the bottom surface of the ring-shaped monitoring box; the air inlet pipes are connected to the connecting sleeve through a flexible tube; and a sealing cap is screwed to the top of the ring-shaped monitoring box.
[0010] The present invention is further configured such that: a hydrogen sulfide sensor for detecting hydrogen sulfide gas is installed inside the annular monitoring box; a hood is connected to the outer wall of the annular monitoring box; an exhaust fan is installed inside the hood; a controller and an alarm are sequentially installed on the surface of the top cover; the input terminal of the controller is electrically connected to the monitoring mechanism, and its output terminal is electrically connected to the servo motor, the exhaust fan and the alarm respectively.
[0011] The present invention is further configured such that: the lifting part includes a lifting sleeve that rotates with the lead screw thread; each side of the lifting sleeve is fixed with a T-shaped rod; the outer wall of the connecting sleeve is symmetrically fixed with connecting rods; and a connecting arm is hinged between the T-shaped rod and the corresponding connecting rod.
[0012] The present invention is further configured such that: a bottom cover is screwed to the bottom end of the filter cylinder; and several baffles for cleaning the brush bristles on the outer wall of the conical platform are evenly fixed on the ground of the protective box.
[0013] The advantages of this utility model are:
[0014] 1. This utility model achieves synchronous reciprocating rotation of each filter cartridge during the reciprocating sliding process through the linkage and cooperation between various components. With the help of the brush bristles, the dust on the outer wall of the filter cartridge is cleaned in an all-round way, which improves the service life of the filter cartridge and thus improves work efficiency.
[0015] 2. In this invention, the air filtered by the filter cartridge is drawn into the annular monitoring box. The hydrogen sulfide sensor monitors the hydrogen sulfide gas in the filtered air. When the concentration exceeds the standard, an alarm will be triggered, thus improving the accuracy of the monitoring data. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a ventilation safety monitoring device for coal mines according to the present invention.
[0017] Figure 2 For the present utility model Figure 1 A structural diagram from a frontal viewpoint.
[0018] Figure 3 This is a schematic diagram of the monitoring frame of this utility model.
[0019] Figure 4 This is a schematic diagram of the filter section of this utility model.
[0020] Figure 5 This is a structural schematic diagram of the filter section of this utility model from a bottom view.
[0021] Figure 6 This is a structural schematic diagram of the filter section of this utility model from a frontal view.
[0022] In the diagram: 1. Monitoring frame; 2. Top cover; 3. Filter section; 4. Protective box; 5. Sliding tube; 6. Filter cartridge; 7. Connecting sleeve; 8. Lead screw; 9. Inclined plate; 10. Ear rod; 11. Ball head; 12. Spiral groove; 13. Extension plate; 14. Conical platform; 15. Brush bristles; 16. L-shaped support plate; 17. Annular support seat; 18. Annular groove; 19. Connecting flange; 20. Servo motor; 21. Insert rail; 22. Insert slot; 23. Annular monitoring box; 24. Air inlet duct; 25. Sealing cover; 26. Fan cover; 27. Controller; 28. Alarm; 29. Lifting sleeve; 30. T-shaped rod; 31. Connecting rod; 32. Connecting arm; 33. Bottom cover; 34. Stop bar. Detailed Implementation
[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0026] Example 1, please refer to Figure 1-6 The present invention provides the following technical solution:
[0027] Specifically, it refers to a ventilation safety monitoring device for coal mines, including a monitoring frame 1; the monitoring frame 1 includes a top cover 2; a filter section 3 is fixedly installed below the top cover 2; the filter section 3 includes a protective box 4; a plurality of sliding tubes 5 are slidably arranged through the bottom surface of the protective box 4; a filter cylinder 6 is fixedly connected to the bottom end of the sliding tube 5; a connecting sleeve 7 is rotatably arranged at the top end of the sliding tube 5; a lead screw 8 is rotatably arranged through the bottom surface of the protective box 4; a lifting part that is hinged to each connecting sleeve 7 is screwed onto the lead screw 8; a plurality of inclined plates 9 are evenly fixed on the bottom surface of the protective box 4; ear rods 10 are fixed on the side of the inclined plates 9; a ball head 11 is fixed at the end of the ear rod 10; a spiral groove 12 adapted to the ball head 11 is opened on the outer wall of the sliding tube 5; an extension plate 13 is fixed at the bottom end of the lead screw 8; a conical platform 14 adapted to each filter cylinder 6 is fixed between the two ends of the extension plate 13; a plurality of bristles 15 are evenly arranged on the outer wall of the conical platform 14.
[0028] The specific application of this embodiment is as follows:
[0029] Through the coordinated operation of the monitoring frame 1, the filter section 3, and the lifting section, each filter cylinder 6 can rotate synchronously during the reciprocating sliding process. With the help of the brush 15, the dust on the outer wall of the filter cylinder 6 can be cleaned in all directions, thereby increasing the service life of the filter cylinder 6 and improving work efficiency.
[0030] Example 2, please refer to Figure 1-6 This embodiment 2 is an improvement on the first embodiment as follows: Specifically, L-shaped support plates 16 are symmetrically fixed on the surface of the top cover 2; an annular support seat 17 is fixed between the bottom ends of the two L-shaped support plates 16; an annular groove 18 is opened on the bottom surface of the top cover 2 to fit into the top of the protective box 4; connecting flanges 19 are fixed on the outer walls of the protective box 4 and the top cover 2; the two connecting flanges 19 are fixedly connected by fastening bolts.
[0031] The protective box 4 and the connecting flange 19 on the top cover 2 are fixed together by fastening bolts to achieve the assembly of the monitoring frame 1 and the filter section 3.
[0032] A servo motor 20 is fixedly mounted on the surface of the top cover 2; a plug-in rail 21 is fixed to the output end of the servo motor 20; and a plug-in groove 22 is provided at the top of the lead screw 8 to engage with the plug-in rail 21.
[0033] Align the connector rail 21 with the connector slot 22, and then install the top cover 2 onto the protective box 4, so that the output end of the servo motor 20 rotates and drives the lead screw 8 to rotate synchronously.
[0034] A ring-shaped monitoring box 23 is fixed to the surface of the top cover 2; several air inlet pipes 24 are evenly fixed through the bottom surface of the ring-shaped monitoring box 23; the air inlet pipes 24 are connected to the connecting sleeve 7 through a flexible tube; a sealing cover 25 is screwed to the top of the ring-shaped monitoring box 23.
[0035] The ring-shaped monitoring box 23 is equipped with a hydrogen sulfide sensor for detecting hydrogen sulfide gas; a hood 26 is connected to the outer wall of the ring-shaped monitoring box 23; an exhaust fan is installed inside the hood 26; a controller 27 and an alarm 28 are installed sequentially on the surface of the top cover 2; the input terminal of the controller 27 is electrically connected to the monitoring mechanism, and its output terminal is electrically connected to the servo motor 20, the exhaust fan and the alarm 28 respectively.
[0036] The hydrogen sulfide sensor can be a sensor of model S-HS.
[0037] The lifting part includes a lifting sleeve 29 that is threadedly rotated with the lead screw 8; T-shaped rods 30 are fixed on each side of the lifting sleeve 29; connecting rods 31 are symmetrically fixed on the outer wall of the connecting sleeve 7; connecting arms 32 are hinged between the T-shaped rods 30 and the corresponding connecting rods 31.
[0038] The bottom of the filter cylinder 6 is screwed with a bottom cover 33; the protective box 4 has several baffles 34 evenly fixed on the ground for cleaning the bristles 15 on the outer wall of the conical platform 14.
[0039] One specific application of this embodiment is:
[0040] The servo motor 20 is controlled to drive the lead screw 22 to rotate synchronously and slowly, which in turn drives the lifting sleeve 29 to rise. Through the connection of the connecting arm 32, the corresponding slide tube 5 slides and rises along the bottom surface of the protective box 4. During this process, through the cooperation of the ball head 11 and the spiral groove 12, the slide tube 5 and the filter cylinder 6 slide and rise while rotating. Therefore, by controlling the servo motor 20 to periodically rotate forward and reverse, the lead screw 22 is driven to rotate forward and reverse periodically, which in turn drives the filter cylinder 6 to move back and forth periodically. This allows the brush 15 to clean the dust on the outer wall of each filter cylinder 6 in an all-round way, improving the service life of the filter cylinder 6 and thus improving work efficiency.
[0041] The rotation of the lead screw 22 drives the bristles 15 on the conical platform 14 to rotate slowly and synchronously, thereby avoiding the use of the bristles 15 in the same position for a long time and improving the cleaning effect. At the same time, the conical platform 14 drives the bristles 15 to move synchronously during the rotation. The moving bristles 15 are pushed by the stop bar 34, thereby shaking off the dust between the bristles 15 and cleaning the bristles 15.
[0042] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0044] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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.
[0046] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A ventilation safety monitoring device for coal mines, comprising a monitoring frame (1); characterized in that: The monitoring frame (1) includes a top cover (2); a filter part (3) is fixedly installed below the top cover (2); the filter part (3) includes a protective box (4); a number of sliding tubes (5) are slidably arranged through the bottom surface of the protective box (4). The bottom end of the slide tube (5) is connected to and fixed with a filter cylinder (6); the top end of the slide tube (5) is rotatably provided with a connecting sleeve (7); the bottom surface of the protective box (4) is rotatably provided with a screw rod (8); the screw rod (8) is screwed with a lifting part that is hinged to each connecting sleeve (7); The bottom surface of the protective box (4) is uniformly fixed with several inclined plates (9); the sides of the inclined plates (9) are fixed with ear rods (10); the ends of the ear rods (10) are fixed with ball heads (11); the outer wall of the slide tube (5) is provided with a spiral groove (12) that matches the ball head (11). An extension plate (13) is fixed at the bottom of the lead screw (8); a conical platform (14) adapted to each filter cylinder (6) is fixed between the two ends of the extension plate (13); a number of brush bristles (15) are evenly arranged on the outer wall of the conical platform (14).
2. The ventilation safety monitoring device for coal mines according to claim 1, characterized in that: The top cover (2) is symmetrically fixed with L-shaped support plates (16); an annular support seat (17) is fixed between the bottom ends of the two L-shaped support plates (16); the bottom surface of the top cover (2) is provided with an annular groove (18) that is inserted and matched with the top of the protective box (4); the outer walls of the protective box (4) and the top cover (2) are both fixed with connecting flanges (19); the two connecting flanges (19) are fixedly connected by fastening bolts.
3. A coal mine ventilation safety monitoring device according to claim 2, characterized in that: A servo motor (20) is fixedly installed on the surface of the top cover (2); a plug-in rail (21) is fixed at the output end of the servo motor (20); and a plug-in groove (22) is provided at the top of the lead screw (8) to engage with the plug-in rail (21).
4. A coal mine ventilation safety monitoring device according to claim 3, characterized in that: The top cover (2) is fixed with a ring-shaped monitoring box (23); several air inlet pipes (24) are evenly fixed through the bottom surface of the ring-shaped monitoring box (23); the air inlet pipes (24) are connected to the connecting sleeve (7) through a flexible tube; a sealing cover (25) is screwed to the top of the ring-shaped monitoring box (23).
5. A coal mine ventilation safety monitoring device according to claim 4, characterized in that: The annular monitoring box (23) is equipped with a hydrogen sulfide sensor for detecting hydrogen sulfide gas; the outer wall of the annular monitoring box (23) is connected to a hood (26); an exhaust fan is installed inside the hood (26); a controller (27) and an alarm (28) are installed sequentially on the surface of the top cover (2); the input end of the controller (27) is electrically connected to the monitoring mechanism, and its output end is electrically connected to the servo motor (20), the exhaust fan and the alarm (28) respectively.
6. A ventilation safety monitoring device for coal mines according to claim 5, characterized in that: The lifting part includes a lifting sleeve (29) that is threadedly rotated with the lead screw (8); each side of the lifting sleeve (29) is fixed with a T-shaped rod (30); the outer wall of the connecting sleeve (7) is symmetrically fixed with connecting rods (31); a connecting arm (32) is hinged between the T-shaped rod (30) and the corresponding connecting rod (31).
7. A coal mine ventilation safety monitoring device according to claim 6, characterized in that: The bottom end of the filter cylinder (6) is screwed with a bottom cover (33); the protective box (4) has several baffles (34) evenly fixed on the ground for cleaning the bristles (15) on the outer wall of the conical platform (14).