Fixed fire early warning device for underground coal mine

Abstract

The invention relates to the technical field of coal mine fire early warning, and discloses a fixed fire early warning device for an underground coal mine, the fixed fire early warning device comprises a circular shell, two rectangular air inlet boxes are fixedly mounted on the outer wall of the circular shell, and a plurality of ventilation holes are formed in the sides, away from each other, of the two rectangular air inlet boxes; an annular adaptive plate is arranged in the circular shell, the dehumidification device further comprises a dehumidification mechanism, the dehumidification mechanism comprises two annular dehumidification plates fixedly installed on the top of the annular adaptive plate, a circular plate is arranged in the circular shell, and a plurality of fixing rods are fixedly installed on the outer wall of the circular plate. An annular dehumidification plate drives a first filter plate to ascend and extrude a water absorption sponge, at the moment, water in the water absorption sponge can be gathered together due to extrusion to form water drops, it is guaranteed that water molecules in the circular shell are reduced, and it is avoided that the water molecules enter electronic elements in the circular shell to cause damage; and the situation of fire false alarm of the device caused by damage of electronic components can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine fire warning equipment, in particular to a fixed fire warning device used in underground coal mines. Background Art

[0002] Coal mines are areas where humans exploit coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an underground coal mine. When the coal seam is very close to the surface, people generally choose to directly peel off the surface soil layer to mine coal. This is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines. The scope of coal mines includes a large area of ​​the ground, underground and related facilities.

[0003] There are usually high temperatures and humidity underground in coal mines. If the temperature is too high, the early warning device needs to be cooled to prevent the electronic components in the device from being damaged by high temperature. At the same time, the device needs to be ventilated to the outside. When the air enters the device, it will contain a large amount of water molecules, which will also affect the normal operation of the electronic components in the device, causing false fire alarms or short circuits. Summary of the invention

[0004] The purpose of the present invention is to provide a fixed fire warning device for use in coal mines to solve the problem of high temperature and humidity that usually exist in coal mines. When the temperature is too high, the inside of the warning device needs to be cooled to prevent the electronic components in the device from being damaged by high temperature. At the same time, the device needs to be ventilated to the outside. When the air enters the device, it will contain a large amount of water molecules, which will also affect the normal operation of the electronic components in the device, causing the problem of false fire alarms or short circuits.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a fixed fire warning device for use in coal mines, comprising a circular housing, on the outer wall of which two rectangular air inlet boxes are fixedly mounted, and a plurality of ventilation holes are respectively provided on the sides of the two rectangular air inlet boxes that are away from each other, and an annular adapter plate is arranged inside the circular housing, and further comprising:

[0007] Dehumidification mechanism, the dehumidification mechanism includes two annular dehumidification plates fixedly installed on the top of the annular adapter plate. A circular plate is arranged inside the circular housing. A plurality of fixing rods are fixedly installed on the outer wall of the circular plate. One end of each of the plurality of fixing rods away from each other is fixedly connected to the circular housing. Both of the two annular dehumidification plates penetrate the circular plate and are slidably connected to the circular plate. A first filter plate is fixedly installed at the top ends of the two annular dehumidification plates. A second filter plate is fixedly installed inside the circular housing. A water-absorbing sponge is fixedly installed at the bottom of the second filter plate. A rotating shaft is rotatably installed on the inner wall of the top of the circular housing. The rotating shaft penetrates the circular plate, the first filter plate, the second filter plate and the water-absorbing sponge, and the rotating shaft is rotatably connected to the circular plate, the first filter plate, the second filter plate and the water-absorbing sponge.

[0008] Further, a rectangular groove is formed on the rotating shaft. A trapezoidal circular ring plate is slidably sleeved on the rectangular groove. The outer wall of the trapezoidal circular ring plate is threadedly connected to the inner wall of the circular housing. The thread on the inner wall of the circular housing is a reciprocating thread. The trapezoidal circular ring plate is rotatably connected to the bottom of the annular dehumidification plate.

[0009] Further, a plurality of rectangular water channels are formed on the trapezoidal circular ring plate. A circular mounting plate is arranged inside the circular housing. A plurality of U-shaped fixing rods are fixedly installed at the bottom of the circular mounting plate. One end of each of the plurality of U-shaped fixing rods away from each other is fixedly connected to the bottom of the circular housing.

[0010] Further, a heat dissipation mechanism is arranged on the circular mounting plate. The heat dissipation mechanism includes a circular mounting box fixedly installed on the top of the circular mounting plate. A driving motor is fixedly installed on the inner wall of the bottom of the circular mounting box. The bottom end of the rotating shaft extends into the circular mounting box and is fixedly connected to the output shaft of the driving motor. A plurality of suction fan blades are fixedly installed on the outer wall of the rotating shaft.

[0011] Further, an annular hollow block is rotatably installed at the bottom of the circular mounting plate. The top of the annular hollow block communicates with the inside of the circular housing. Two blowing covers are fixedly installed at the bottom of the annular hollow block. A photoelectric smoke sensor is fixedly installed at the bottom of the circular mounting plate.

[0012] Further, a plurality of L-shaped hollow rods are fixedly installed on the inner wall of the annular hollow block. The top ends of the plurality of L-shaped hollow rods all extend into the circular housing. Rectangular sliding rods are respectively slidably installed in the plurality of L-shaped hollow rods. The top ends of the plurality of rectangular sliding rods are fixedly connected to the trapezoidal circular ring plate.

[0013] Furthermore, a transmission mechanism is provided at the bottom of the trapezoidal circular ring plate, and the transmission mechanism includes an annular rotating plate rotatably installed at the bottom of the trapezoidal circular ring plate, and two transmission plates are fixedly installed at the bottom of the annular rotating plate, and both of the two transmission plates pass through the circular mounting plate and are slidably connected to the circular mounting plate, and a cleaning box is fixedly installed on one side of the two transmission plates close to each other.

[0014] Furthermore, rotating rods are rotatably installed in the two cleaning boxes respectively, and cleaning scrapers are fixedly sleeved on the two rotating rods respectively, and two limit plates are fixedly installed on the inner walls of the two cleaning boxes on the side away from each other, and two limit fixing plates are fixedly installed on the outer wall of the circular shell, and the two transmission plates respectively penetrate the two limit fixing plates and are slidably connected with the two limit fixing plates respectively.

[0015] The present invention has the following beneficial effects:

[0016] (1) The present invention provides a fixed fire warning device for use in coal mines. The driving motor is started, and the driving motor drives the rotating shaft to rotate. The rotating shaft drives the suction fan blades to rotate. The rotation of the suction fan blades will generate a suction force, and the suction force will suck air into the circular shell through the ventilation holes on the rectangular air inlet box. Due to the high humidity in the coal mine, water molecules in the air will enter the circular shell at the same time. In the process of the incoming wind blowing in the direction of the circular mounting plate, the water molecules will be blocked and filtered by the water-absorbing sponge. As the water molecules are continuously blocked on the water-absorbing sponge, the water molecules on the water-absorbing sponge will increase, and the rotating shaft will increase. The shaft drives the trapezoidal circular ring plate to rotate under the action of the rectangular groove, and the trapezoidal circular ring plate moves toward the direction close to the water-absorbing sponge under the action of the thread on the inner wall of the circular shell, and the trapezoidal circular ring plate drives the annular adapter plate to rise, and the annular adapter plate drives the annular dehumidification plate to rise, and the annular dehumidification plate drives the filter plate to rise and squeeze the water-absorbing sponge. At this time, the moisture in the water-absorbing sponge will gather together to form water droplets due to the squeezing, ensuring that the water molecules in the circular shell are reduced, avoiding water molecules from entering the electronic components in the circular shell and causing damage, and effectively avoiding the situation where the device has a false fire alarm due to damage to the electronic components;

[0017] (2) The present invention is a fixed fire warning device for use in coal mines. After falling, water droplets will fall onto the top of the trapezoidal circular ring plate. During the rotation of the trapezoidal circular ring plate, centrifugal force will be generated, and the centrifugal force will throw the water droplets onto the inner wall of the circular shell. The water droplets will pass through the rectangular water flow groove along the inner wall of the circular shell and be discharged along the gap between the circular mounting plate and the circular shell. The air blown out by the suction fan blades will also be discharged through the rectangular water flow groove and the gap between the circular shell and the circular mounting plate. In this process, the evaporation of water will be accelerated, preventing water molecules from remaining in the circular shell and affecting the electronic components in the circular shell.

[0018] (3) The present invention is a fixed fire warning device for use in coal mines. The air blown out by the suction fan blades will also enter the annular hollow block at the same time, and will be blown toward the photoelectric smoke sensor through the blowing hood. During the rotation of the trapezoidal circular ring plate, the rectangular sliding rod will be driven to rotate, and the rectangular sliding rod will drive the L-shaped hollow rod to rotate. The L-shaped hollow rod will drive the annular hollow block and the blowing hood to rotate synchronously. At this time, the blowing hood will rotate around the photoelectric smoke sensor to blow air. Since there is a lot of dust in the coal mine, it will adhere to the photoelectric smoke sensor. During the rotation of the blowing hood, the dust on the photoelectric smoke sensor will be blown off, thereby preventing the photoelectric smoke sensor from being covered by dust and causing the photoelectric smoke sensor to generate a false fire alarm.

[0019] (4) The present invention provides a fixed fire warning device for use in coal mines. During the process of the trapezoidal circular ring plate rising, the circular rotating plate will drive the transmission plate to rise, the transmission plate will drive the cleaning box to rise, the cleaning box will drive the rotating rod to rise, the rotating rod will drive the cleaning scraper to rise, and the cleaning scraper will contact the rectangular air inlet box during the rising process. At this time, the cleaning scraper will rotate at an angle on the rotating rod, and the corresponding cleaning scraper will contact the limit plate at one end close to the cleaning box. At this time, the cleaning scraper will maintain an inclined rise under the limiting action of the limit plate and the rectangular air inlet box during the rising process, and scrape the dust on the surface of the ventilation hole on the rectangular air inlet box. When the transmission plate descends, the cleaning scraper will also have an opposite inclination angle to scrape the dust on the surface of the ventilation hole, thereby improving the dust cleaning effect and avoiding blockage caused by excessive dust on the surface of the ventilation hole, which affects the heat dissipation in the circular shell.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of a side partial cross-sectional structure of the present invention;

[0025] Figure 4 For the present invention Figure 3Schematic diagram of the enlarged structure of A;

[0026] Figure 5 This is the present invention Figure 2 Schematic diagram of the enlarged structure of B;

[0027] Figure 6 This is the present invention Figure 2 Schematic diagram of the enlarged structure of C;

[0028] Figure 7 Schematic diagram of the side top-down partial sectional structure of the present invention;

[0029] Figure 8 This is the present invention Figure 7 Schematic diagram of the enlarged structure of D.

[0030] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0031] In the figure: 1, circular outer shell; 2, rectangular air inlet box; 3, ventilation hole; 4, annular adapter plate; 5, dehumidification mechanism; 501, annular dehumidification plate; 502, circular plate; 503, fixing rod; 504, filter plate 1; 505, filter plate 2; 506, water-absorbing sponge; 5061, rotating shaft; 507, rectangular groove; 508, trapezoidal circular ring plate; 509, rectangular water trough; 510, circular mounting plate; 511, C-shaped fixing rod; 6, heat dissipation mechanism; 601, circular mounting box; 602, drive motor; 603, suction fan blade; 604, annular hollow block; 605, blowing hood; 606, photoelectric smoke sensor; 607, L-shaped hollow rod; 608, rectangular sliding rod; 7, transmission mechanism; 701, annular rotating plate; 702, transmission plate; 703, cleaning box; 704, rotating rod; 705, cleaning scraper; 706, limiting plate; 707, limiting fixing plate. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figure 1 - Figure 8 As shown in the figure, the present invention is a fixed fire warning device for coal mines underground, including a circular outer shell 1. Two rectangular air inlet boxes 2 are fixedly installed on the outer wall of the circular outer shell 1. A number of ventilation holes 3 are respectively opened on the sides of the two rectangular air inlet boxes 2 away from each other. An annular adapter plate 4 is arranged inside the circular outer shell 1, and further includes:

[0034] Dehumidifying mechanism 5, the dehumidifying mechanism 5 includes two annular dehumidifying plates 501 fixedly installed on the top of the annular adapter plate 4. A circular plate 502 is arranged inside the circular housing 1. A number of fixing rods 503 are fixedly installed on the outer wall of the circular plate 502. One end of each of the number of fixing rods 503 away from each other is fixedly connected to the circular housing 1. Both annular dehumidifying plates 501 penetrate the circular plate 502 and are slidably connected to the circular plate 502. A first filter plate 504 is fixedly installed at the top of both annular dehumidifying plates 501. A second filter plate 505 is fixedly installed inside the circular housing 1. A water-absorbing sponge 506 is fixedly installed at the bottom of the second filter plate 505. A rotating shaft 5061 is rotatably installed on the inner wall of the top of the circular housing 1. The rotating shaft 5061 penetrates the circular plate 502, the first filter plate 504, the second filter plate 505 and the water-absorbing sponge 506, and the rotating shaft 5061 is rotatably connected to the circular plate 502, the first filter plate 504, the second filter plate 505 and the water-absorbing sponge 506.

[0035] As Figure 4 shown, a rectangular groove 507 is formed on the rotating shaft 5061. A trapezoidal circular ring plate 508 is slidably sleeved on the rectangular groove 507. The outer wall of the trapezoidal circular ring plate 508 is threadedly connected to the inner wall of the circular housing 1. The thread on the inner wall of the circular housing 1 is a reciprocating thread. The trapezoidal circular ring plate 508 is rotatably connected to the bottom of the annular dehumidifying plate 501.

[0036] Driven by the rectangular groove 507, the rotating shaft 5061 drives the trapezoidal circular ring plate 508 to rotate. The trapezoidal circular ring plate 508 will move towards the direction close to the water-absorbing sponge 506 under the action of the thread on the inner wall of the circular housing 1.

[0037] As Figure 6 shown, a number of rectangular water channels 509 are formed on the trapezoidal circular ring plate 508. A circular mounting plate 510 is arranged inside the circular housing 1. A number of U-shaped fixing rods 511 are fixedly installed at the bottom of the circular mounting plate 510. One end of each of the number of U-shaped fixing rods 511 away from each other is fixedly connected to the bottom of the circular housing 1.

[0038] During the rotation of the trapezoidal circular ring plate 508, centrifugal force will be generated. The centrifugal force will throw the water droplets onto the inner wall of the circular housing 1. The water droplets will pass through the rectangular water channels 509 along the inner wall of the circular housing 1 and drain out along the gap between the circular mounting plate 510 and the circular housing 1.

[0039] As Figure 4 and Figure 5As shown, a heat dissipation mechanism 6 is provided on the circular mounting plate 510, and the heat dissipation mechanism 6 includes a circular mounting box 601 fixedly mounted on the top of the circular mounting plate 510, a driving motor 602 is fixedly mounted on the bottom inner wall of the circular mounting box 601, the bottom end of the rotating shaft 5061 extends into the circular mounting box 601 and is fixedly connected to the output shaft of the driving motor 602, and a plurality of suction fan blades 603 are fixedly mounted on the outer wall of the rotating shaft 5061.

[0040] The driving motor 602 is started, and the driving motor 602 drives the rotating shaft 5061 to rotate, and the rotating shaft 5061 drives the suction fan blades 603 to rotate. The rotation of the suction fan blades 603 generates a suction force, and the suction force sucks air into the circular shell 1 through the ventilation holes 3 on the rectangular air inlet box 2.

[0041] like Figure 2 and Figure 6 As shown, an annular hollow block 604 is rotatably mounted on the bottom of the circular mounting plate 510, the top of the annular hollow block 604 is communicated with the inside of the circular housing 1, two blowing hoods 605 are fixedly mounted on the bottom of the annular hollow block 604, and a photoelectric smoke sensor 606 is fixedly mounted on the bottom of the circular mounting plate 510.

[0042] The air blown out by the suction fan blades 603 will also enter the annular hollow block 604 at the same time, and will be blown toward the photoelectric smoke sensor 606 through the blowing cover 605.

[0043] like Figure 6 As shown, a plurality of L-shaped hollow rods 607 are fixedly installed on the inner wall of the annular hollow block 604, and the top ends of the plurality of L-shaped hollow rods 607 extend into the circular outer shell 1. Rectangular sliding rods 608 are slidably installed in the plurality of L-shaped hollow rods 607, and the top ends of the plurality of rectangular sliding rods 608 are fixedly connected to the trapezoidal circular ring plate 508.

[0044] During the rotation of the trapezoidal circular ring plate 508 , the rectangular sliding rod 608 is driven to rotate, the rectangular sliding rod 608 is driven to rotate the L-shaped hollow rod 607 , and the L-shaped hollow rod 607 is driven to rotate the annular hollow block 604 and the blowing hood 605 synchronously.

[0045] like Figure 6 and Figure 8 As shown, a transmission mechanism 7 is provided at the bottom of the trapezoidal circular ring plate 508, and the transmission mechanism 7 includes an annular rotating plate 701 rotatably mounted at the bottom of the trapezoidal circular ring plate 508, and two transmission plates 702 are fixedly mounted at the bottom of the annular rotating plate 701, and the two transmission plates 702 both penetrate the circular mounting plate 510 and are slidably connected to the circular mounting plate 510, and a cleaning box 703 is fixedly mounted on one side of the two transmission plates 702 close to each other.

[0046] During the process of the trapezoidal circular ring plate 508 rising, the annular rotating plate 701 will be driven to rise, the annular rotating plate 701 will drive the transmission plate 702 to rise, and the transmission plate 702 will drive the cleaning box 703 to rise.

[0047] like Figure 7 and Figure 8 As shown, rotating rods 704 are rotatably installed in the two cleaning boxes 703, and cleaning scrapers 705 are fixedly sleeved on the two rotating rods 704. Two limit plates 706 are fixedly installed on the inner walls of the two cleaning boxes 703 on the side away from each other, and two limit fixing plates 707 are fixedly installed on the outer wall of the circular shell 1. The two transmission plates 702 respectively penetrate the two limit fixing plates 707 and are slidably connected with the two limit fixing plates 707.

[0048] The cleaning box 703 will drive the rotating rod 704 to rise, and the rotating rod 704 will drive the cleaning scraper 705 to rise. The cleaning scraper 705 will contact the rectangular air inlet box 2 during the rising process. At this time, the cleaning scraper 705 will rotate on the rotating rod 704, and the corresponding end of the cleaning scraper 705 close to the cleaning box 703 will contact the limiting plate 706. At this time, the cleaning scraper 705 will maintain an inclined rise under the limiting action of the limiting plate 706 and the rectangular air inlet box 2 during the rising process, and scrape the dust on the surface of the ventilation hole 3 on the rectangular air inlet box 2. When the transmission plate 702 descends, the cleaning scraper 705 will also have an opposite inclination angle to scrape the dust on the surface of the ventilation hole 3, thereby improving the dust cleaning effect and avoiding blockage caused by excessive dust on the surface of the ventilation hole 3, which affects the heat dissipation in the circular shell 1.

[0049] When in use, start the driving motor 602, the driving motor 602 drives the rotating shaft 5061 to rotate, and the rotating shaft 5061 drives the suction fan blades 603 to rotate. The rotation of the suction fan blades 603 will generate a suction force, and the suction force will suck air into the circular shell 1 through the ventilation holes 3 on the rectangular air inlet box 2. Due to the high humidity in the coal mine, water molecules in the air will enter the circular shell 1 at the same time. In the process of the incoming wind blowing in the direction of the circular mounting plate 510, the water molecules will be blocked and filtered by the water-absorbing sponge 506. As the water molecules are continuously blocked on the water-absorbing sponge 506, the water molecules on the water-absorbing sponge 506 will increase. The rotating shaft 5061 drives the trapezoidal circular ring plate 508 to rotate under the action of the rectangular groove 507. The trapezoidal circular ring plate 508 will move toward the direction close to the water-absorbing sponge 506 under the action of the threads on the inner wall of the circular shell 1. The trapezoidal circular ring plate 508 drives the annular adapter plate 4 to rise, and the annular adapter plate 4 drives the annular dehumidification plate 501 to rise. The dehumidification plate 501 drives the filter plate 1 504 to rise and squeeze the water-absorbing sponge 506. At this time, the water in the water-absorbing sponge 506 will gather together to form water droplets due to squeezing, ensuring that the water molecules in the circular shell 1 are reduced, preventing the water molecules from entering the electronic components in the circular shell 1 and causing damage, and effectively preventing the device from having a false fire alarm due to damage to the electronic components; after falling, the water droplets will fall on the top of the trapezoidal circular ring plate 508. During the rotation of the trapezoidal circular ring plate 508, centrifugal force will be generated, and the centrifugal force will throw the water droplets onto the inner wall of the circular shell 1. The water droplets will pass through the rectangular water flow groove 509 along the inner wall of the circular shell 1 and be discharged along the gap between the circular mounting plate 510 and the circular shell 1. The air blown out by the suction fan blade 603 will also be discharged through the rectangular water flow groove 509 and the gap between the circular shell 1 and the circular mounting plate 510. In this process, the evaporation of water will be accelerated, preventing water molecules from remaining in the circular shell 1 and affecting the electronic components in the circular shell 1.

[0050] The air blown out by the suction fan blades 603 will also enter the annular hollow block 604 at the same time, and will be blown toward the photoelectric smoke sensor 606 through the blowing hood 605. During the rotation of the trapezoidal circular ring plate 508, the rectangular sliding rod 608 will be driven to rotate, and the rectangular sliding rod 608 will drive the L-shaped hollow rod 607 to rotate, and the L-shaped hollow rod 607 will drive the annular hollow block 604 and the blowing hood 605 to rotate synchronously. At this time, the blowing hood 605 will rotate around the photoelectric smoke sensor 606 to blow air. Since there is a lot of dust in the coal mine, it will adhere to the photoelectric smoke sensor 606. During the process of the blowing hood 605 rotating and blowing, the dust on the photoelectric smoke sensor 606 will be blown off, so as to avoid the photoelectric smoke sensor 606 being covered by dust and causing the photoelectric smoke sensor 606 to generate a false fire alarm; during the rising process of the trapezoidal circular ring plate 508, the annular rotating plate 701 will be driven to rise, and the annular rotating plate 701 will be driven to rise. The movable plate 701 drives the transmission plate 702 to rise, and the transmission plate 702 drives the cleaning box 703 to rise. The cleaning box 703 will drive the rotating rod 704 to rise, and the rotating rod 704 drives the cleaning scraper 705 to rise. The cleaning scraper 705 will contact the rectangular air inlet box 2 during the rising process. At this time, the cleaning scraper 705 will rotate an angle on the rotating rod 704, and the corresponding end of the cleaning scraper 705 close to the cleaning box 703 will contact the limiting plate 706. At this time, the cleaning scraper 705 will keep inclined upward under the limiting action of the limiting plate 706 and the rectangular air inlet box 2 during the rising process, and scrape the dust on the surface of the ventilation hole 3 on the rectangular air inlet box 2. When the transmission plate 702 descends, the cleaning scraper 705 will also have an opposite inclination angle to scrape the dust on the surface of the ventilation hole 3, thereby improving the dust cleaning effect and avoiding blockage caused by excessive dust on the surface of the ventilation hole 3, which affects the heat dissipation in the circular shell 1.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fixed fire warning device for use in coal mines, comprising a circular housing (1), two rectangular air inlet boxes (2) are fixedly mounted on the outer wall of the circular housing (1), a plurality of ventilation holes (3) are respectively provided on the sides of the two rectangular air inlet boxes (2) that are away from each other, an annular adapter plate (4) is arranged inside the circular housing (1), and the characteristics are as follows: It further includes: A dehumidifying mechanism (5), the dehumidifying mechanism (5) includes two annular dehumidifying plates (501) fixedly installed on the top of the annular adapter plate (4), a circular plate (502) is arranged in the circular outer shell (1), a plurality of fixing rods (503) are fixedly installed on the outer wall of the circular plate (502), and one end of each of the plurality of fixing rods (503) away from each other is fixedly connected to the circular outer shell (1). Both of the two annular dehumidifying plates (501) penetrate through the circular plate (502) and are slidably connected to the circular plate (502). A first filter plate (504) is fixedly installed at the top of both of the two annular dehumidifying plates (501). A second filter plate (505) is fixedly installed in the circular outer shell (1). A water-absorbing sponge (506) is fixedly installed at the bottom of the second filter plate (505). A rotating shaft (5061) is rotatably installed on the inner wall of the top of the circular outer shell (1). The rotating shaft (5061) penetrates through the circular plate (502), the first filter plate (504), the second filter plate (505) and the water-absorbing sponge (506), and the rotating shaft (5061) is rotatably connected to the circular plate (502), the first filter plate (504), the second filter plate (505) and the water-absorbing sponge (506).

2. A fixed fire warning device for underground coal mines according to claim 1, characterized in that: A rectangular groove (507) is formed on the rotating shaft (5061). A trapezoidal circular ring plate (508) is slidably sleeved on the rectangular groove (507). The outer wall of the trapezoidal circular ring plate (508) is threadedly connected to the inner wall of the circular outer shell (1). The thread on the inner wall of the circular outer shell (1) is a reciprocating thread. The trapezoidal circular ring plate (508) is rotatably connected to the bottom of the annular dehumidifying plate (501).

3. A fixed fire warning device for use in coal mines according to claim 2, characterized in that: A plurality of rectangular water channels (509) are formed on the trapezoidal circular ring plate (508). A circular mounting plate (510) is arranged in the circular outer shell (1). A plurality of U-shaped fixing rods (511) are fixedly installed at the bottom of the circular mounting plate (510). One end of each of the plurality of U-shaped fixing rods (511) away from each other is fixedly connected to the bottom of the circular outer shell (1).

4. A fixed fire warning device for underground coal mines according to claim 3, characterized in that: A heat dissipation mechanism (6) is arranged on the circular mounting plate (510). The heat dissipation mechanism (6) includes a circular mounting box (601) fixedly installed on the top of the circular mounting plate (510). A driving motor (602) is fixedly installed on the inner wall of the bottom of the circular mounting box (601). The bottom end of the rotating shaft (5061) extends into the circular mounting box (601) and is fixedly connected to the output shaft of the driving motor (602). A plurality of suction fan blades (603) are fixedly installed on the outer wall of the rotating shaft (5061).

5. The fixed fire warning device for underground coal mines according to claim 3 is characterized in that: An annular hollow block (604) is rotatably installed at the bottom of the circular mounting plate (510). The top of the annular hollow block (604) is communicated with the inside of the circular outer shell (1). Two blowing covers (605) are fixedly installed at the bottom of the annular hollow block (604). A photoelectric smoke sensor (606) is fixedly installed at the bottom of the circular mounting plate (510).

6. A fixed fire warning device for underground coal mines according to claim 5, characterized in that: A plurality of L-shaped hollow rods (607) are fixedly mounted on the inner wall of the annular hollow block (604), the top ends of the plurality of L-shaped hollow rods (607) all extend into the circular outer shell (1), rectangular sliding rods (608) are slidably mounted in the plurality of L-shaped hollow rods (607), and the top ends of the plurality of rectangular sliding rods (608) are fixedly connected to the trapezoidal circular ring plate (508).

7. A fixed fire warning device for use in coal mines according to claim 3, characterized in that: A transmission mechanism (7) is provided at the bottom of the trapezoidal circular ring plate (508), and the transmission mechanism (7) comprises an annular rotating plate (701) rotatably mounted at the bottom of the trapezoidal circular ring plate (508), and two transmission plates (702) are fixedly mounted at the bottom of the annular rotating plate (701), and both of the two transmission plates (702) penetrate the circular mounting plate (510) and are slidably connected to the circular mounting plate (510), and cleaning boxes (703) are fixedly mounted on the sides of the two transmission plates (702) close to each other.

8. A fixed fire warning device for use in coal mines according to claim 7, characterized in that: A rotating rod (704) is rotatably installed in each of the two cleaning boxes (703), and a cleaning scraper (705) is fixedly sleeved on each of the two rotating rods (704). Two limit plates (706) are fixedly installed on the inner walls of the two cleaning boxes (703) on the sides away from each other, and two limit fixing plates (707) are fixedly installed on the outer wall of the circular shell (1). The two transmission plates (702) respectively penetrate the two limit fixing plates (707) and are slidably connected to the two limit fixing plates (707).

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