Coal mine carbon monoxide sensor with protection device
Patent Information
- Application Number
- CN202520556245.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing carbon monoxide sensors used in coal mines are prone to clogging in dusty environments, which leads to poor gas flow, reduced measurement sensitivity, and shortened service life.
Design a carbon monoxide sensor for coal mines with a threaded sleeve, including a base, a lifting screw, a sealing cover, a roller brush, and a sealing shield. Powered by a battery block, the lifting screw drives the threaded sleeve and roller brush to move up and down to clean dust. Combined with a limit gear and hook structure, the device is prevented from falling.
It effectively prevents dust blockage, maintains the normal operation of the sensor, extends its service life, and improves measurement sensitivity.
Smart Images

Figure CN223770188U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of carbon monoxide sensor technology, specifically, it relates to a carbon monoxide sensor for coal mines with a protection device. Background Technology
[0002] In the coal mining industry, ensuring the safety of workers is paramount. Carbon monoxide, a gas with a significant impact on coal mine safety, makes its concentration detection a crucial aspect of mine safety protection. Carbon monoxide sensors are commonly used underground in coal mines, often paired with equipment such as fixed methane alarm power-off devices, and can also be installed on large and medium-sized underground mining equipment. However, the coal mining process generates a large amount of dust, and existing mining equipment lacks effective dust protection devices for carbon monoxide sensors. This makes the sensor detection port easily clogged with dust, hindering gas flow, reducing sensor sensitivity, shortening sensor lifespan, and causing unnecessary losses for users. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a carbon monoxide sensor for coal mines with a protection device that can overcome or at least partially solve the above problems.
[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a carbon monoxide sensor for coal mines with a protective device, including a base, and further including: a lifting screw rotatably connected to the base, a threaded sleeve fixedly connected to the lifting screw, and a roller brush fixedly connected to the threaded sleeve; a sealing cover rotatably connected to the lifting screw, and a battery block fixedly connected to the sealing cover; a first sealing cover and a second sealing cover inserted into the base, a sliding groove fixedly connected to the first sealing cover, and a carbon monoxide sensor slidably connected to the sliding groove; the carbon monoxide sensor is fixed to the first sealing cover through the sliding groove, and the first and second sealing covers prevent dust from the surrounding area of the carbon monoxide sensor; a sealing cover and a battery block are fixedly installed above the first and second sealing covers to seal and prevent dust from the top of the carbon monoxide sensor; a base is fixedly installed below the first and second sealing covers to seal and prevent dust from the bottom of the carbon monoxide sensor; after the battery block provides power to the multiple lifting screws, the lifting screws drive the threaded sleeve to move up and down on the lifting screws, and the threaded sleeve drives the roller brush to strike the surfaces of the first and second sealing covers.
[0005] Furthermore, a limit gear is fixedly connected to the lifting screw, and a main gear meshes with the limit gear, with a limit hole provided on the main gear.
[0006] Furthermore, a battery block is fixedly connected to the main gear.
[0007] Furthermore, a connecting seat is fixedly connected to the battery block, the connecting seat passes through the main gear and is fixedly connected to the battery block, and a limit spring is fixedly connected to the connecting seat.
[0008] Furthermore, a hook is fixedly connected to the connecting seat, a limiting block is slidably connected to the hook, and a limit spring is fixedly connected to the limiting block.
[0009] Furthermore, a locking post is fixedly connected to the first sealing cover, and a locking groove is provided on the second sealing cover. The first sealing cover and the second sealing cover are fixedly connected by locking post to locking groove.
[0010] Furthermore, both the first and second sealing covers are provided with dustproof holes.
[0011] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: This utility model uses multiple sets of lifting screws threadedly connected to the sealing cover and the base. After installation, it is hung on the location in the coal mine where carbon monoxide needs to be monitored by hooks. The space inside the coal mine is usually small, and people coming and going will touch the device. The limiting spring and limiting block on the hook will dampen the hook and the device to prevent the device from falling.
[0012] Powered by the battery block, the lifting screw rotates, and the threaded sleeve on the lifting screw moves up and down synchronously, driving the roller brush to knock and clean the dust around the first and second sealing covers, thus ensuring the normal monitoring of the carbon monoxide sensor.
[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0014] In the attached diagram:
[0015] Figure 1 This is a front view schematic diagram of the structure of the carbon monoxide sensor for coal mines with a protective device proposed in this utility model.
[0016] Figure 2 This is a schematic diagram of the limiting spring and hook in the carbon monoxide sensor for coal mines with a protective device proposed in this utility model.
[0017] Figure 3 This is a cross-sectional view of the carbon monoxide sensor for coal mines with a protective device proposed in this utility model.
[0018] Figure 4 The present invention provides a carbon monoxide sensor for coal mines with a protective device. Figure 3 Schematic diagram of the structure at point A;
[0019] Figure 5This is a schematic diagram of the slide and carbon monoxide sensor in the coal mine carbon monoxide sensor with protection device proposed in this utility model.
[0020] Figure 6 This is a schematic diagram of the limiting gear and main gear in the carbon monoxide sensor for coal mines with a protective device proposed in this utility model.
[0021] In the diagram: 1. Base; 11. Lifting screw; 12. Threaded sleeve; 13. Roller brush; 15. Limiting gear; 16. Main gear; 17. Limiting hole; 2. Sealing cover; 21. Battery block; 22. Connecting seat; 23. Limiting spring; 24. Hook; 25. Limiting block; 4. First sealing cover; 41. Second sealing cover; 42. Locking post; 43. Slide groove; 44. Dustproof hole; 5. Carbon monoxide sensor. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0023] Example 1: Refer to Figures 1-6 A carbon monoxide sensor for coal mines with a protective device includes a base 1, and further includes: a lifting screw 11 rotatably connected to the base 1, a threaded sleeve 12 fixedly connected to the lifting screw 11, and a roller brush 13 fixedly connected to the threaded sleeve 12; a sealing cover 2 rotatably connected to the lifting screw 11, and a battery block 21 fixedly connected to the sealing cover 2; a first sealing cover 4 and a second sealing cover 41 inserted into the base 1, a sliding groove 43 fixedly connected to the first sealing cover 4, and a carbon monoxide sensor 5 slidably connected to the sliding groove 43; the carbon monoxide sensor 5 is fixed to the first sealing cover 4 via the sliding groove 43, and the first sealing cover 4 and The second sealing cover 41 protects the carbon monoxide sensor 5 from dust. A sealing cover 2 and a battery block 21 are fixedly installed above the first sealing cover 4 and the second sealing cover 41 to seal and protect the carbon monoxide sensor 5 from dust. A base 1 is fixedly installed below the first sealing cover 4 and the second sealing cover 41 to seal and protect the carbon monoxide sensor 5 from dust. After the battery block 21 provides power to the multiple lifting screws 11, the lifting screws 11 drive the threaded sleeve 12 to move up and down on the lifting screws 11. The threaded sleeve 12 drives the roller brush 13 to strike the surface of the first sealing cover 4 and the second sealing cover 41.
[0024] A limiting gear 15 is fixedly connected to the lifting screw 11. A main gear 16 meshes with the limiting gear 15. A limiting hole 17 is opened on the main gear 16.
[0025] A battery block 21 is fixedly connected to the main gear 16.
[0026] A connecting seat 22 is fixedly connected to the battery block 21. The connecting seat 22 passes through the main gear 16 and is fixedly connected to the battery block 21. A limit spring 23 is fixedly connected to the connecting seat 22.
[0027] A hook 24 is fixedly connected to the connecting seat 22, a limiting block 25 is slidably connected to the hook 24, and a limit spring 23 is fixedly connected to the limiting block 25.
[0028] A locking post 42 is fixedly connected to the first sealing cover 4, and a locking groove is provided on the second sealing cover 41. The first sealing cover 4 and the second sealing cover 41 are fixedly connected by locking post 42 into the locking groove.
[0029] Dustproof holes 44 are provided on both the first sealing cover 4 and the second sealing cover 41.
[0030] Example 2: Refer to Figure 3 The carbon monoxide sensor for coal mines with protective devices is basically the same as in Example 1, but with a further improvement: First, the first sealing cover 4 and the second sealing cover 41 are fixedly connected to the slot by the locking post 42. The carbon monoxide sensor 5 is slid into the slot 43 on the first sealing cover 4 and the second sealing cover 41. Then, the first sealing cover 4 and the second sealing cover 41 are locked onto the sealing cover 2 and the battery block 21, and the bottom is locked onto the base 1. Multiple sets of lifting screws 11 are threaded onto the two bases 1 of the sealing cover. After installation, it is hung on the location in the coal mine where carbon monoxide needs to be monitored by the hook 24. In the usually small space inside the coal mine, people passing by may touch the device. The limiting spring 23 and the limiting block 25 on the hook 24 will dampen the hook 24 and the device to prevent the device from falling.
[0031] Example 3: Reference Figures 1-5 The carbon monoxide sensor for coal mines with protective devices is basically the same as in Example 2. However, after being left for a long time, dust will accumulate on the first sealing cover 4 and the second sealing cover 41, which will have a certain impact on the monitoring of the carbon monoxide sensor 5. At this time, the battery block 21 can provide power to rotate the lifting screw 11. The threaded sleeve 12 on the lifting screw 11 will move up and down synchronously, driving the roller brush 13 to hit and clean the dust on the outside of the first sealing cover 4 and the second sealing cover 41, so as to keep the monitoring of the carbon monoxide sensor 5 normal.
[0032] Example 4: Reference Figure 6The carbon monoxide sensor for coal mines with a protection device is basically the same as in Example 3. Furthermore, when the battery block 21 cannot provide power output, the main gear 16 can be manually rotated. The main gear 16 drives the multiple peripheral limit gears 15 to rotate, and the limit gears 15 drive the lifting screw 11 to move up and down.
[0033] This utility model uses multiple sets of lifting screws 11 threadedly connected to two bases 1 of the sealing cover. After installation, it is hung on the location in the coal mine where carbon monoxide needs to be monitored via hooks 24. Since the space inside the coal mine is usually small, people passing by may touch the device. The limiting springs 23 and limiting blocks 25 on the hooks 24 will dampen the hooks 24 and the device to prevent the device from falling.
[0034] Power is provided by battery block 21 to rotate lifting screw 11, and threaded sleeve 12 on lifting screw 11 will move up and down synchronously, driving roller brush 13 to hit and clean the dust around the first sealing cover 4 and the second sealing cover 41, so as to keep the carbon monoxide sensor 5 monitoring normally.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A carbon monoxide sensor for use in coal mines with a protection device, comprising a base (1), characterized in that, Also include: The lifting screw (11) is rotatably connected to the base (1), and the lifting screw (11) is fixedly connected with a threaded sleeve (12), and the threaded sleeve (12) is fixedly connected with a drum brush (13); The lifting screw (11) is rotatably connected with a sealing cover (2), and the sealing cover (2) is fixedly connected with a battery block (21); The base (1) is inserted with a first sealing cover (4) and a second sealing cover (41), the first sealing cover (4) is fixedly connected with a chute (43), and a carbon monoxide sensor (5) is slidably connected to the chute (43); The carbon monoxide sensor (5) is fixed on the first sealing cover (4) through the chute (43), the first sealing cover (4) and the second sealing cover (41) are dustproof around the carbon monoxide sensor (5), the sealing cover (2) and the battery block (21) are fixedly arranged above the first sealing cover (4) and the second sealing cover (41) to seal and prevent dust above the carbon monoxide sensor (5), and the base (1) is fixedly arranged below the first sealing cover (4) and the second sealing cover (41) to seal and prevent dust below the carbon monoxide sensor (5); After the battery block (21) provides power for the plurality of lifting screws (11), the lifting screw (11) drives the threaded sleeve (12) to move up and down on the lifting screw (11), and the threaded sleeve (12) drives the drum brush (13) to hit the surface of the first sealing cover (4) and the second sealing cover (41).
2. The carbon monoxide sensor for coal mines with a protection device according to claim 1, characterized in that, The lifting screw (11) is fixedly connected with a limiting gear (15), the limiting gear (15) is engaged with a main gear (16), and the main gear (16) is provided with a limiting hole (17).
3. The carbon monoxide sensor for coal mines with a protection device according to claim 2, characterized in that, The main gear (16) is fixedly connected with a battery block (21).
4. The carbon monoxide sensor for coal mines with a protection device according to claim 3, characterized in that, The battery block (21) is fixedly connected with a connecting seat (22), the connecting seat (22) penetrates the main gear (16) and is fixedly connected with the battery block (21), and the connecting seat (22) is fixedly connected with a limiting spring (23).
5. The carbon monoxide sensor for coal mines with a protection device according to claim 4, characterized in that, The connecting seat (22) is fixedly connected with a hook (24), the hook (24) is slidably connected with a limiting block (25), and the limiting block (25) is fixedly connected with a limiting spring (23).
6. The carbon monoxide sensor for coal mines with a protection device according to claim 1, characterized by, The first sealing cover (4) is fixedly connected with a clamping column (42), the second sealing cover (41) is provided with a clamping groove, and the first sealing cover (4) and the second sealing cover (41) are fixedly connected by clamping the clamping column (42) in the clamping groove.
7. The carbon monoxide sensor for coal mines with a protection device according to claim 1, characterized by, The first sealing cover (4) and the second sealing cover (41) are both provided with dust holes (44).