Area monitoring alarm device for coal mine

Abstract

The utility model is suitable for the technical field of coal mine equipment, and provides an area monitoring alarm device for a coal mine. Comprising a first side plate; a second side plate; the two ends of the telescopic rod are connected to the first end of the first side plate and the first end of the second side plate respectively; the two ends of the adjusting plate are connected to the second end of the first side plate and the second end of the second side plate respectively, and the adjusting plate comprises a length adjusting mechanism; the combustible gas detector is arranged on the side wall of the first side plate; the plurality of infrared sensors are arranged on the side wall of the first side plate; the alarm is mounted on the second side plate, and the infrared sensor and the combustible gas detector are electrically connected with the alarm; and the two warning lamps are arranged at the top of the first side plate and the top of the second side plate respectively, and the combustible gas detector and the infrared sensor are electrically connected with the warning lamps. By arranging the combustible gas detector, combustible gas in a working environment can be detected, and the use safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine equipment, in particular to a regional monitoring and alarm device for coal mines. Background Technique

[0002] A coal mine is an area where humans extract coal resources in coal-rich mining areas, generally divided into underground coal mines and surface coal mines. When the coal seam is far from the surface, generally choose to dig underground roadways to extract coal, this is an underground coal mine. When the distance between the coal seam and the surface is very close, generally choose to directly strip the surface soil layer to excavate coal, this is a surface coal mine. Most coal mines in China belong to underground coal mines. The scope of a coal mine includes a large area above and below the ground and related facilities. A coal mine is a reasonable space excavated by humans when excavating a geological layer rich in coal, usually including roadways, shafts and working faces, etc.

[0003] During the tunneling process of a coal mine, a roadheader is used. In order to improve the working safety, a monitoring and alarm device is set on the roadheader. However, the monitoring and alarm device of the existing technology can only judge whether someone approaches the danger area, and it cannot identify combustible gases. In order to solve this technical problem, a regional monitoring and alarm device for coal mines is now proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a regional monitoring and alarm device for coal mines to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A regional monitoring and alarm device for coal mines, comprising: a first side plate;

[0007] A second side plate;

[0008] A telescopic rod, the two ends of which are respectively connected to the first end of the first side plate and the first end of the second side plate;

[0009] An adjusting plate, the two ends of which are respectively connected to the second end of the first side plate and the second end of the second side plate, and the adjusting plate includes a length adjusting mechanism;

[0010] A combustible gas detector, arranged on the side wall of the first side plate;

[0011] A plurality of infrared sensors, arranged on the side wall of the first side plate;

[0012] An alarm, installed on the second side plate, and the infrared sensors and the combustible gas detector are both electrically connected to the alarm;

[0013] And, two warning lights are respectively arranged at the tops of the first side plate and the second side plate, and both the combustible gas detector and the infrared sensor are electrically connected to the warning lights.

[0014] As a further solution of the utility model: The combustible gas detector includes an installation shell, an installation groove is arranged inside the installation shell, a detector main body is fixedly installed in the installation groove, and a filter screen is arranged at the opening position at the top of the installation groove.

[0015] As a further solution of the utility model: A protective net is also arranged at the opening position of the installation groove, and the protective net covers the outside of the filter screen.

[0016] As a further solution of the utility model: The protective net is rotatably installed on the installation shell, and a brush is installed on one side of the protective net close to the filter screen, and the brush is arranged in contact with the surface of the filter screen.

[0017] As a further solution of the utility model: A rotating part is installed at the top of the protective net.

[0018] As a further solution of the utility model: Not less than one air outlet is arranged on the side wall of the installation shell, the air outlet is arranged at a position far from the probe of the detector main body, a blower is arranged on the side close to the inside of the installation shell in the air outlet, and a one-way valve is also arranged on the air outlet, and the one-way valve is arranged close to the outside of the installation shell.

[0019] As a further solution of the utility model: The adjusting plate includes a second installation rod fixedly installed on the second side plate and a first installation rod fixedly installed on the first side plate, and the length adjusting mechanism is arranged between the first installation rod and the second installation rod, so as to facilitate adjusting the distance between the first installation rod and the second installation rod.

[0020] As a further solution of the utility model: The length adjusting mechanism includes a motor fixedly installed inside the second installation rod, a lead screw is arranged at the output end of the motor, and the lead screw passes through a threaded hole on the first installation rod.

[0021] Compared with the prior art, the beneficial effects of the utility model are: By arranging the adjusting plate and the telescopic rod, it is convenient to adjust the installation distance between the first side plate and the second side plate, and improve its application range; By arranging the infrared sensor, it can timely detect whether someone is approaching, improving the use safety. By arranging the combustible gas detector, it can detect the combustible gas in the working environment to ensure the use safety. When it is detected that someone is approaching, the infrared sensor sends an alarm signal to the alarm and the warning light, so that the alarm and the warning light emit an alarm. Or when the combustible gas exceeds the standard, the combustible gas detector sends an alarm signal to the alarm and the warning light, so that the alarm and the warning light also emit an alarm. Description of the Drawings

[0022] Figure 1 This is a schematic structural diagram of the regional monitoring and alarm device for coal mines in the embodiment of the present utility model.

[0023] Figure 2 This is a schematic internal structure diagram of the regional monitoring and alarm device for coal mines in the embodiment of the present utility model.

[0024] Figure 3 This is a schematic structural diagram of the combustible gas detector in the regional monitoring and alarm device for coal mines in the embodiment of the present utility model.

[0025] In the figure: 1 - First side plate, 2 - Second side plate, 3 - Telescopic rod, 4 - Adjusting plate, 5 - Combustible gas detector, 6 - Infrared sensor, 7 - Alarm, 8 - Warning light, 9 - First mounting rod, 10 - Second mounting rod, 11 - Lead screw, 12 - Motor, 13 - Mounting shell, 14 - Detector main body, 15 - Filter screen, 16 - Protection net, 17 - Brush, 18 - Fan, 19 - Air outlet hole, 20 - Rotating part, 21 - Check valve. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1

[0028] Please refer to Figures 1 to 3 , a structural diagram of a regional monitoring and alarm device for coal mines provided in Embodiment 1 of the present utility model. The regional monitoring and alarm device for coal mines includes: a first side plate 1, a second side plate 2, a telescopic rod 3, and an adjusting plate 4; both ends of the telescopic rod 3 are respectively connected to the first end of the first side plate 1 and the first end of the second side plate 2; both ends of the adjusting plate 4 are respectively connected to the second end of the first side plate 1 and the second end of the second side plate 2; a combustible gas detector 5 is arranged on the side wall of the first side plate 1; a plurality of infrared sensors 6 are also arranged on the side wall of the first side plate 1; an alarm 7 is installed on the second side plate 2, and warning lights 8 are installed on the tops of both the first side plate 1 and the second side plate 2; the infrared sensors 6 and the combustible gas detector 5 are both electrically connected to the alarm 7, and the combustible gas detector 5 and the infrared sensors 6 are both electrically connected to the warning lights 8; the adjusting plate 4 includes a length adjustment mechanism, so as to facilitate adjusting the length of the adjusting plate 4.

[0029] The utility model facilitates adjusting the installation distance between the first side plate 1 and the second side plate 2 by arranging the adjusting plate 4 and the telescopic rod 3, thereby improving its applicable range. By arranging the infrared sensor 6, it can timely detect whether someone approaches, improving the use safety. By arranging the combustible gas detector 5, it can detect the combustible gas in the working environment to ensure the use safety. When the infrared sensor 6 detects someone approaching, it sends an alarm signal to the alarm 7 and the warning light 8, causing the alarm 7 and the warning light 8 to give an alarm. Or when the combustible gas exceeds the standard, the combustible gas detector 5 sends an alarm signal to the alarm 7 and the warning light 8, also causing the alarm 7 and the warning light 8 to give an alarm.

[0030] As a preferred embodiment of the utility model, the combustible gas detector 5 includes an installation shell 13. An installation groove is arranged inside the installation shell 13. A detector main body 14 is fixedly installed in the installation groove. A filter net 15 is arranged at the opening position at the top of the installation groove. The filter net 15 is provided to reduce the dust adhering to the surface of the probe of the detector main body 14, improving the detection accuracy of the detector main body 14.

[0031] As a preferred embodiment of the utility model, a protection net 16 is further arranged at the opening position of the installation groove. The protection net 16 covers the outside of the filter net 15. The protection net 16 is made of a metal material, which facilitates protecting the filter net 15.

[0032] Both the filter net 15 and the protection net 16 are of an arc-shaped convex structure.

[0033] As a preferred embodiment of the utility model, since a lot of dust will adhere to the surface of the filter net 15 after being used for a period of time, making it difficult for air to enter. To solve this technical problem, the protection net 16 is rotatably installed on the installation shell 13, and a brush 17 is installed on the side of the protection net 16 close to the filter net 15, with the brush 17 arranged in contact with the surface of the filter net 15. Thus, by driving the protection net 16 to rotate, the brush 17 can clean the dust on the surface of the filter net 15, enabling the continuous use of the combustible gas detector 5. The opening position of the protection net 16 can be rotatably sleeved on the annular step of the installation shell 13.

[0034] To facilitate driving the protection net 16 to rotate, a rotating part 20 is installed on the top of the protection net 16. The protection net 16 can be driven to rotate through the rotating part 20.

[0035] In order to increase the amount of air entering the interior of the mounting shell 13, at least one air outlet 19 is provided on the side wall of the mounting shell 13. The air outlet 19 is arranged at a position away from the probe of the detector main body 14. A blower 18 is provided on the side close to the interior of the mounting shell 13 in the air outlet 19, and a one-way valve 21 is also provided on the air outlet 19. The one-way valve 21 is arranged close to the outer side of the mounting shell 13. In this way, the blower 18 provides power for the air flow, and the one-way valve 21 prevents dust from entering the interior of the mounting shell 13 through the air outlet 19 when the blower 18 is not working, thereby increasing the service life of the detector main body 14.

[0036] As a preferred embodiment of the present invention, the adjusting plate 4 includes a second mounting rod 10 fixedly installed on the second side plate 2 and a first mounting rod 9 fixedly installed on the first side plate 1. The length adjusting mechanism is arranged between the first mounting rod 9 and the second mounting rod 10, so as to facilitate adjusting the distance between the first mounting rod 9 and the second mounting rod 10.

[0037] The length adjusting mechanism includes a motor 12 fixedly installed inside the second mounting rod 10. A lead screw 11 is arranged at the output end of the motor 12. The lead screw 11 passes through a threaded hole on the first mounting rod 9. By driving the motor 12 to rotate, the distance between the first side plate 1 and the second side plate 2 can be adjusted to meet the requirements of different installation distances. The motor 12 is a forward and reverse motor, which is convenient for adjusting the distance.

[0038] The working principle of the present invention is:

[0039] When the present invention is in use and after a period of use, when it is necessary to clean the surface of the filter net 15, the protective net 16 is driven to rotate by the rotating part 20, and the protective net 16 drives the brush 17 to clean the surface of the filter net 15; by providing the air outlet 19, the entry of dust into the interior of the combustible gas detector 5 is reduced; by providing the blower 18, air can be sucked into the interior of the mounting shell 13 to improve the detection accuracy. By providing the first mounting rod 9, the second mounting rod 10, the lead screw 11 and the motor 12, etc., it is convenient to adjust the distance between the first side plate 1 and the motor 12, and the application range is wide.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0041] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0043] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as a limitation to the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A regional monitoring and alarm device for coal mines, characterized in that, Comprising: The first side plate; The second side plate; A telescopic rod, the two ends of the telescopic rod are respectively connected to the first end of the first side plate and the first end of the second side plate; An adjusting plate, the two ends of the adjusting plate are respectively connected to the second end of the first side plate and the second end of the second side plate, and the adjusting plate includes a length adjustment mechanism; A combustible gas detector, arranged on the side wall of the first side plate; A plurality of infrared sensors, arranged on the side wall of the first side plate; An alarm, installed on the second side plate, and both the infrared sensors and the combustible gas detector are electrically connected to the alarm; And, two warning lights, respectively arranged on the tops of the first side plate and the second side plate, and both the combustible gas detector and the infrared sensors are electrically connected to the warning lights.

2. The area monitoring and alarming device for coal mines according to claim 1, characterized in that, The combustible gas detector includes an installation shell, an installation groove is arranged inside the installation shell, a detector main body is fixedly installed in the installation groove, and a filter screen is arranged at the opening position at the top of the installation groove.

3. The area monitoring and alarming device for coal mines according to claim 2, wherein A protective net is further arranged at the opening position of the installation groove, and the protective net covers the outside of the filter screen.

4. The area monitoring and alarming device for coal mines according to claim 3, wherein, The protective net is rotatably installed on the installation shell, and a brush is installed on the side of the protective net close to the filter screen, and the brush is arranged in contact with the surface of the filter screen.

5. A regional monitoring and alarming device for coal mines according to claim 4, characterized in that, A rotating part is installed at the top of the protective net.

6. The area monitoring and alarming device for coal mines according to claim 2, characterized in that, Not less than one air outlet is arranged on the side wall of the installation shell, the air outlet is arranged at a position far from the probe of the detector main body, a blower is arranged on the side close to the inside of the installation shell in the air outlet, and a one-way valve is further arranged on the air outlet, and the one-way valve is arranged close to the outside of the installation shell.

7. A regional monitoring and alarming device for coal mines according to any one of claims 1-6, characterized in that, The adjusting plate includes a second installation rod fixedly installed on the second side plate and a first installation rod fixedly installed on the first side plate, and the length adjustment mechanism is arranged between the first installation rod and the second installation rod.

8. The area monitoring and alarming device for coal mines according to claim 7, characterized in that, The length adjustment mechanism includes a motor fixedly installed inside the second installation rod, a lead screw is arranged at the output end of the motor, and the lead screw passes through the threaded hole on the first installation rod.

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