Mining smoke sensor

Abstract

The invention relates to a mine smoke sensor, and relates to the technical field of smoke sensors, the mine smoke sensor comprises an outer shell, a cleaning mechanism and a mounting mechanism; the outer shell comprises a first shell body and a second shell body movably connected with the first shell body, the second shell body communicates with the first shell body, and a plurality of air inlets distributed in an array mode are formed in the second shell body; the cleaning mechanism comprises a cleaning brush rod, cleaning bristles and a driving assembly; the cleaning brush rod is arranged at the joint of the first shell and the second shell, and the cleaning brush rod is located in the cavity of the second shell; the cleaning brush bristles are arranged on the cleaning brush rod and can make contact with the inner wall of the second shell. The driving assembly is used for driving the second shell to rotate in the circumferential direction of the first shell; and the mounting mechanism is arranged on the first shell and is used for fixing the mine smoke sensor at a mounting position. The method has the effect of improving the detection precision of the smoke sensor.

Description

Technical Field

[0001] The present application relates to the technical field of smoke sensors, and in particular to a smoke sensor for use in mines. Background Art

[0002] In mine production, in order to ensure the safety of mine operations, it is often necessary to install multiple smoke sensors in the mine. The smoke sensors detect the smoke conditions in the mine and provide protection for mine operations.

[0003] In the related art, the working principle of the smoke sensor is as follows: the light emitted by the light source of the electronic component of the smoke sensor is transmitted through the optical path and projected onto the photosensitive element, making it in a conducting state. When smoke enters the optical path, the smoke absorbs the light, causing the light intensity reaching the photosensitive element after passing through the smoke to decrease, thereby causing the photosensitive element to lose its conducting ability and output a signal to trigger an alarm.

[0004] Regarding the above-mentioned related technologies, the inventors believe that smoke sensors operate for a long time in mines where there is a lot of dust. The dust will enter the smoke sensors, which will cause the sensitivity of the smoke sensors to decrease over time, affecting the detection accuracy of the smoke sensors. Summary of the invention

[0005] In order to improve the cleaning efficiency of mine smoke sensors and the detection accuracy of mine smoke sensors, the present application provides a mine smoke sensor.

[0006] The present application provides a mine smoke sensor, which adopts the following technical solution: A mine smoke sensor comprises an outer shell, a cleaning mechanism and an installation mechanism; the outer shell comprises a first shell and a second shell movably connected to the first shell, the second shell is connected to the first shell, wherein the second shell has a plurality of air inlets distributed in an array; the cleaning mechanism comprises a cleaning brush rod, cleaning bristles and a driving assembly; the cleaning brush rod is arranged at the connection between the first shell and the second shell, and the cleaning brush rod is located in the cavity of the second shell; the cleaning bristles are arranged on the cleaning brush rod and can contact the inner wall of the second shell; the driving assembly is used to drive the second shell to rotate along the circumference of the first shell; the installation mechanism is arranged on the first shell, and is used to fix the mine smoke sensor at the installation position.

[0007] By adopting the above technical solution, the installation mechanism installs the smoke sensor at a designated position in the mine, and the smoke in the mine enters the outer shell through the air inlet. The electronic components arranged in the outer shell detect the concentration of the smoke. When the smoke sensor is used for a long time, the driving component is turned on, and the driving component drives the second shell to rotate along the first shell, and the cleaning bristles contact the inner wall of the second shell, and the cleaning bristles clean the inner wall of the second shell and dredge the air inlet to achieve the cleaning of the smoke sensor. The second shell is driven to rotate by the driving component, and the second shell rotates on the first shell, and cooperates with the cleaning bristles to achieve the purpose of cleaning the inner wall of the second shell and the air inlet, which helps to improve the detection accuracy of the smoke sensor.

[0008] Optionally, the cleaning brush rod includes a first rod segment and a second rod segment rotatably connected to the first rod segment; one end of the first rod segment is connected to the first shell, and the second rod segment is rotatably connected to the other end of the first rod segment; wherein the mine smoke sensor has a working state and a cleaning state; in the working state, the cleaning brush rod is located between two adjacent rows of the air inlets; in the cleaning state, the first rod segment and the second rod segment have an angle, and the second rod segment contacts the inner wall of the second shell.

[0009] By adopting the above technical solution, when the smoke sensor is in a working state, the cleaning brush rod is located between two adjacent rows of air inlets. At the same time, in the working state, the second rod segment overlaps with the first rod end, which can effectively prevent the cleaning brush rod from interfering with the air inlet and affecting the detection accuracy of the smoke sensor; when the smoke sensor is in a cleaning state, the first rod segment and the second rod segment have an angle, so that the second rod segment can be completely in contact with the inner wall of the second shell, thereby improving the cleaning effect of the smoke sensor.

[0010] Optionally, the mine smoke sensor also includes a rotating assembly for driving the second rod segment to rotate; the rotating assembly includes a rotating motor; the output shaft of the rotating motor is coaxially connected to the output shafts of the first rod segment and the second rod segment, and the rotating motor is used to drive the second rod segment to rotate.

[0011] By adopting the above technical solution, when the smoke sensor needs to be adjusted to the cleaning state, the rotating motor is turned on, and the rotation of the rotating motor drives the second rod segment to rotate, the second rod segment is close to the inner wall of the second shell, and the cleaning bristles contact the inner wall of the second shell; by adjusting the rotating motor, the rotating motor drives the second rod segment to move, and the second rod segment rotates on the first rod segment, so that the smoke sensor is in the cleaning state.

[0012] Optionally, the mining smoke sensor further includes a collection box; the second shell is provided with a dust outlet; and the collection box is threadedly connected to the dust outlet.

[0013] By adopting the above technical solution, when it is necessary to clean the dust in the smoke sensor, first adjust the smoke sensor to a position that is convenient for staff to take. When the smoke sensor is in a convenient position to take, rotate the collection box, the collection box is detached from the second shell, and the dust in the collection box is scattered, thereby achieving the purpose of cleaning the dust in the collection box.

[0014] Optionally, the mine smoke sensor also includes a lifting mechanism; the lifting mechanism is connected to the mounting mechanism, and the lifting mechanism includes a lifting bracket, a lifting roller, a lifting rope and a lifting motor; the lifting bracket is arranged on the first shell; the lifting roller is rotatably connected to the lifting bracket; the lifting rope is wound around the lifting roller, wherein one end of the lifting rope is connected to the lifting roller, and the other end is connected to the first shell; the lifting motor is used to drive the lifting roller to rotate.

[0015] By adopting the above technical solution, when it is necessary to clean the dust in the collection box, the lifting motor is turned on, the lifting motor rotates to drive the lifting roller to rotate, the lifting roller drives the lifting rope to move, the lifting rope lowers the first shell, and the descending movement of the first shell drives the collection box to move downward. After the collection box moves to the appropriate position, the staff removes the collection box and cleans it.

[0016] Optionally, the mounting mechanism includes a mounting plate, a first mounting block, a second mounting block and a rebound assembly; the mounting plate is connected to the lifting bracket, and the first mounting block is arranged on the mounting plate; the second mounting block is rotatably arranged on the mounting plate through the rebound assembly, and there is a hanging space between the first mounting block and the second mounting block, and the size of the hanging space is variable, and the rebound assembly is used to drive the second mounting block to move so that the size of the hanging space changes.

[0017] By adopting the above technical solution, when the sensor needs to be installed in a suitable position, the second mounting block is pressed, and the second mounting block moves to increase the hanging space. The first mounting block and the second mounting block are placed in suitable positions. Under the action of the rebound assembly, the second mounting block moves and the hanging space is reduced, so that the smoke sensor can be installed in a suitable position.

[0018] Optionally, the rebound assembly includes a rebound block and a return torsion spring; the rebound block is arranged on the second mounting block; the return torsion spring is arranged on the rotating shaft of the second mounting block and the mounting plate, and the return torsion spring is used to drive the second mounting block to return to motion.

[0019] By adopting the above technical solution, the rebound block is pressed, and the movement of the rebound block drives the second mounting block to move. At this time, the first mounting block and the second mounting block are away from each other, the hanging space becomes larger, and the smoke sensor is installed in a suitable position. The rebound block is released, and under the action of the return torsion spring, the first mounting block and the second mounting block are close to each other, and the smoke sensor is installed in a suitable position.

[0020] Optionally, the driving assembly includes a driving motor, a driving gear and a driving ring gear; the driving ring gear is arranged on the first shell, the driving gear is arranged on the second shell through the driving motor, and the driving ring gear is meshed with the driving gear; the driving motor is used to drive the driving gear to rotate.

[0021] By adopting the above technical solution, when the second shell needs to be driven to rotate to clean the smoke sensor, the drive motor is turned on, the drive motor drives the drive gear to rotate, the drive gear moves along the drive ring gear, and the movement of the drive gear causes the second shell to rotate.

[0022] Optionally, the mine smoke sensor also includes an opening and closing mechanism for closing the channel between the first shell and the second shell; the opening and closing mechanism includes a fixed disk, a moving ring and a plurality of closing parts arranged on the moving ring; the fixed disk is arranged at the connecting position between the first shell and the second shell, and the fixed disk has a connecting hole; the moving ring is rotatably connected to the fixed disk, the closing part is connected to the moving ring, and the movement of the moving ring drives the closing part to move, so that the plurality of closing parts cooperate to block the connecting hole.

[0023] By adopting the above technical solution, when the smoke sensor is in a cleaning state, the moving ring is driven to move, and the movement of the moving ring drives the multiple closing parts to move, and the movement of the multiple closing parts blocks the connecting hole, so that when the smoke sensor is cleaned, the dust in the smoke sensor cannot enter the first shell and contact the electronic components, which effectively prevents the dust from contacting the electronic components when the smoke sensor is cleaned, causing abnormal noise in the smoke sensor or damage to the electronic components. At the same time, when the smoke sensor is working, the connecting hole is in an open state, so that the external smoke can normally enter the external shell to facilitate normal detection of the electronic components in the smoke sensor.

[0024] Optionally, the closing member includes a closing link and a closing plate; one end of the closing link is rotatably connected to the moving ring, and the axial direction of the rotatable connection between the closing link and the moving ring is perpendicular to the plane where the fixed disk is located; the closing plate is connected to the other end of the closing link; the side of the closing plate away from the closing link is rotatably connected to the fixed disk, wherein the axial direction of the rotatable connection between the closing plate and the fixed disk is the same as the axial direction of the rotatable connection between the closing link and the moving ring.

[0025] By adopting the above technical solution, when the connecting hole needs to be closed or opened, the moving ring is driven to move, the movement of the moving ring drives the movement of the closing connecting rod, and the movement of the closing connecting rod drives the movement of the closing plate. When multiple closing plates are close to each other, the connecting hole is closed to achieve the closure of the connecting channel between the first shell and the second shell; when multiple closing plates are far away from each other, the connecting hole is opened to achieve the connection between the first shell and the second shell.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: The second shell is driven to rotate by the driving assembly, and the second shell rotates on the first shell, and cooperates with the cleaning bristles to achieve the purpose of cleaning the inner wall of the second shell and the air inlet, which helps to improve the detection accuracy of the smoke sensor.

[0027] By adjusting the smoke sensor to a position that is convenient for staff to take, when the smoke sensor is in a convenient position, the collection box is rotated, the collection box is detached from the second shell, and the dust in the collection box is scattered, thereby achieving the purpose of cleaning the dust in the collection box.

[0028] By driving the moving ring to move, the movement of the moving ring drives the movement of multiple closing parts, and the movement of the multiple closing parts blocks the connecting hole, so that when the smoke sensor is cleaned, the dust in the smoke sensor cannot enter the first shell and contact the electronic components, which effectively prevents the dust from contacting the electronic components when the smoke sensor is cleaned, causing abnormal noise in the smoke sensor or damage to the electronic components. At the same time, when the smoke sensor is working, the connecting hole is open, so that the external smoke can normally enter the external shell to facilitate normal detection of the electronic components in the smoke sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a structural schematic diagram of a mine smoke sensor according to an embodiment of the present application.

[0031] Figure 2 yes Figure 1 A magnified view of part A.

[0032] Figure 3 It is a cross-sectional view of a mine smoke sensor according to an embodiment of the present application.

[0033] Figure 4 yes Figure 3 Enlarged view of part B.

[0034] Figure 5 It is a structural diagram of the opening and closing mechanism.

[0035] Figure 6 It is a structural schematic diagram of a part of the opening and closing mechanism.

[0036] Figure 7 yes Figure 6 Magnified view of part C.

[0037] Description of reference numerals: 1. outer shell; 11. first shell; 12. second shell; 121. air inlet; 122. dust outlet; 2. cleaning mechanism; 21. cleaning brush rod; 211. first rod section; 212. second rod section; 22. cleaning brush bristles; 213. rotating assembly; 2131. rotating motor; 23. driving assembly; 231. driving motor; 232. driving gear; 233. driving gear ring; 3. collecting box; 4. lifting mechanism; 41. lifting bracket; 42. Lifting roller; 43, lifting rope; 44, lifting motor; 5, mounting mechanism; 51, first mounting block; 52, second mounting block; 53, rebound assembly; 531, rebound block; 532, return torsion spring; 54, mounting plate; 6, opening and closing mechanism; 61, fixed disk; 611, connecting hole; 62, moving ring; 63, closing member; 631, closing connecting rod; 632, closing plate; 64, power member; 641, power motor; 642, power gear; 643, power gear ring. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-7 This application is described in further detail.

[0039] The embodiment of the present application discloses a smoke sensor for use in a mine.

[0040] Reference Figure 1 , Figure 2 as well as Figure 3A mine smoke sensor comprises an outer shell 1, a cleaning mechanism 2, an installation mechanism 5, a lifting mechanism 4 and the installation mechanism 5; the outer shell 1 comprises a first shell 11 and a second shell 12 movably connected to the first shell 11, the second shell 12 is connected to the first shell 11, wherein the second shell 12 has a plurality of air inlets 121 distributed in an array; the cleaning mechanism 2 is installed in connection with the first shell 11 and is located in the second shell 12, and is used to clean the inside of the second shell 12; the installation mechanism 5 is installed on the first shell 11, and is used to install the smoke sensor at the location of the mine; the lifting mechanism 4 is installed between the installation mechanism 5 and the first shell 11, and is used to drive the lifting movement of the smoke sensor; the opening and closing mechanism 6 is installed between the first shell 11 and the second shell 12, and is used to realize the closing or opening of the channel between the first shell 11 and the second shell 12.

[0041] In some embodiments of the present disclosure, the cleaning mechanism 2 includes a cleaning brush rod 21, cleaning bristles 22 and a driving assembly 23; the cleaning brush rod 21 is fixed at the connection between the first shell 11 and the second shell 12, and part of the cleaning brush rod 21 is located in the cavity of the second shell 12; the cleaning bristles 22 are installed on the cleaning brush rod 21, and the cleaning bristles 22 can contact the inner wall of the second shell 12; the driving assembly 23 is used to drive the second shell 12 to rotate along the circumference of the first shell 11.

[0042] As an example, the driving assembly 23 includes a driving motor 231, a driving gear 232 and a driving ring gear 233; the driving ring gear 233 is fixed to the first housing 11 by welding, the driving gear 232 is installed on the second housing 12 through the driving motor 231, and the driving ring gear 233 is meshed with the driving gear 232; the driving motor 231 is used to drive the driving gear 232 to rotate. In this way, when the smoke sensor needs to be cleaned, the driving motor 231 is turned on, and the driving motor 231 drives the driving gear 232 to rotate. The driving gear 232 rotates so that the second housing 12 can move along the circumferential direction of the first housing 11, and the second housing 12 cooperates with the cleaning brush 22 to clean the second housing 12.

[0043] In some embodiments of the present disclosure, the cleaning brush rod 21 includes a first rod segment 211 and a second rod segment 212 rotatably connected to the first rod segment 211; one end of the first rod segment 211 is connected to the first shell 11, and the second rod segment 212 is rotatably connected to the other end of the first rod segment 211, and the rotation axis between the first rod segment 211 and the second rod segment 212 is perpendicular to the axis of the second shell 12; wherein, the mining smoke sensor has a working state and a cleaning state; in the working state, the cleaning brush rod 21 is located between two adjacent rows of air inlets 121; in the cleaning state, the first rod segment 211 and the second rod segment 212 have an angle, and the second rod segment 212 contacts the inner wall of the second shell 12.

[0044] In some embodiments of the present disclosure, see Figure 3 , Figure 4 The mining smoke sensor further includes a rotating assembly 213 for driving the second rod segment 212 to rotate; as an example, the rotating assembly 213 includes a rotating motor 2131; the output shaft of the rotating motor 2131 is coaxially connected with the output shafts of the first rod segment and the second rod segment 212, and the rotating motor 2131 is used to drive the second rod segment 212 to rotate. In this way, when it is necessary to clean the inner wall of the second shell 12, the rotating motor 2131 is turned on, the second rod segment 212 rotates, the second rod segment 212 moves close to the inner wall of the second shell 12, and the cleaning bristles 22 on the second rod segment 212 contact the inner wall of the second shell 12, so that the inner wall of the second shell 12 can be cleaned.

[0045] In some embodiments of the present disclosure, see Figure 1 The mining smoke sensor further includes a collecting box 3 ; the second housing 12 is provided with a dust outlet 122 ; the collecting box 3 is threadedly connected to the dust outlet 122 .

[0046] In some embodiments of the present disclosure, see Figure 1 , Figure 3 The lifting mechanism 4 includes a lifting bracket 41, a lifting roller 42, a lifting rope 43 and a lifting motor 44; the lifting bracket 41 is installed on the first shell 11; the lifting roller 42 is rotatably connected to the lifting bracket 41, wherein the axial direction of the lifting roller 42 is the same as the axial direction of the rotation axis of the first rod segment and the second rod segment 212; the lifting rope 43 is wound around the lifting roller 42, wherein one end of the lifting rope 43 is connected to the lifting roller 42, and the other end is connected to the first shell 11; the lifting motor 44 is used to drive the lifting roller 42 to rotate.

[0047] In some embodiments of the present disclosure, see Figure 1 , Figure 3 The mounting mechanism 5 includes a mounting plate 54, a first mounting block 51, a second mounting block 52 and a rebound assembly 53; the mounting plate 54 is connected to the lifting bracket 41, and the first mounting block 51 is fixedly mounted on the mounting plate 54; the second mounting block 52 is rotatably mounted on the mounting plate 54 through the rebound assembly 53, and there is a hanging space between the first mounting block 51 and the second mounting block 52, and the size of the hanging space is variable. The rebound assembly 53 is used to drive the second mounting block 52 to move so that the size of the hanging space changes.

[0048] As an example, the rebound assembly 53 includes a rebound block 531 and a return torsion spring 532; the rebound block 531 is fixed on the second mounting block 52; the return torsion spring 532 is sleeved on the rotating shaft of the second mounting block 52 and the mounting plate 54, and the return torsion spring 532 is used to drive the second mounting block 52 to return to motion.

[0049] In some embodiments of the present disclosure, see Figure 5 , Figure 6 , Figure 7 The opening and closing mechanism 6 includes a fixed disk 61, a moving ring 62, and a plurality of closing members 63 mounted on the moving ring 62; the fixed disk 61 is mounted at the connecting position between the first shell 11 and the second shell 12, and a connecting hole 611 is provided on the fixed disk 61; the moving ring 62 is rotatably connected to the fixed disk 61, and the closing member 63 is connected to the moving ring 62, and the movement of the moving ring 62 drives the closing member 63 to move, so that the plurality of closing members 63 cooperate to block the connecting hole 611. In this way, when the smoke sensor needs to be cleaned, the moving ring 62 is driven to move, and the moving ring 62 drives the closing member 63 to move, and the closing member 63 closes the connecting hole 611, so as to reduce the phenomenon that dust adheres to the electronic components of the smoke sensor when the smoke sensor is in the cleaning state, causing the smoke sensor to be damaged.

[0050] As an example, the closing member 63 includes a closing link 631 and a closing plate 632; one end of the closing link 631 is rotatably connected to the moving ring 62, and the axial direction of the rotational connection between the closing link 631 and the moving ring 62 is perpendicular to the plane where the fixed disk 61 is located; the closing plate 632 is connected to the other end of the closing link 631; the side of the closing plate 632 away from the closing link 631 is rotatably connected to the fixed disk 61, wherein the axial direction of the rotational connection between the closing plate 632 and the fixed disk 61 is the same as the axial direction of the rotational connection between the closing link 631 and the moving ring 62.

[0051] In some embodiments of the present disclosure, the opening and closing mechanism 6 also includes a power part 64 for driving the moving ring 62 to rotate; the power part 64 includes a power motor 641, a power gear 642 and a power ring gear 643; wherein, the power ring gear 643 is arranged on the moving ring 62, and the power gear 642 is rotatably connected to the fixed disk 61 through the power motor 641, the power gear 642 is meshed with the power ring gear 643, and the power motor 641 is used to drive the power gear 642 to rotate.

[0052] It should be noted that in the embodiment of the present disclosure, a plurality of closing members 63 are provided, for example, three closing members 63 can be provided, four closing members 63 can be provided, five closing members 63 can be provided, etc., which will not be described in detail in the present application. When the movement ring 62 moves, the movement ring 62 drives the closing link 631 to move, the closing link 631 and the closing plate 632 move, and the plurality of closing plates 632 move closer to each other, thereby achieving the purpose of blocking the connecting hole.

[0053] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A smoke sensor for mining, characterized in that: The invention comprises an outer shell (1), a cleaning mechanism (2) and a mounting mechanism (5); the outer shell (1) comprises a first shell (11) and a second shell (12) movably connected to the first shell (11); the second shell (12) is connected to the first shell (11), wherein the second shell (12) has a plurality of air inlets (121) distributed in an array; the cleaning mechanism (2) comprises a cleaning brush rod (21), cleaning bristles (22) and a driving assembly (23); the cleaning brush rod (21) is arranged at the At the connection between the first shell (11) and the second shell (12), the cleaning brush rod (21) is located in the cavity of the second shell (12); the cleaning bristles (22) are arranged on the cleaning brush rod (21) and are capable of contacting the inner wall of the second shell (12); the driving assembly (23) is used to drive the second shell (12) to rotate along the circumference of the first shell (11); the mounting mechanism (5) is arranged on the first shell (11) and is used to fix the mining smoke sensor at the mounting position.

2. A mine smoke sensor according to claim 1, characterized in that: The cleaning brush rod (21) comprises a first rod segment and a second rod segment (212) rotatably connected to the first rod segment (211); one end of the first rod segment (211) is connected to the first shell (11), and the second rod segment (212) is rotatably connected to the other end of the first rod segment (211); wherein the mining smoke sensor has a working state and a cleaning state; in the working state, the cleaning brush rod (21) is located between two adjacent rows of air inlets (121); in the cleaning state, the first rod segment (211) and the second rod segment (212) have an angle, and the second rod segment (212) contacts the inner wall of the second shell (12).

3. A mine smoke sensor according to claim 2, characterized in that: The mining smoke sensor further comprises a rotating assembly (213) for driving the second rod segment (212) to rotate; the rotating assembly (213) comprises a rotating motor (2131); the output shaft of the rotating motor (2131) is coaxially connected to the output shafts of the first rod segment and the second rod segment (212), and the rotating motor (2131) is used to drive the second rod segment (212) to rotate.

4. A mine smoke sensor according to claim 1, characterized in that: The mining smoke sensor also includes a collection box (3); the second shell (12) is provided with a dust outlet (122); and the collection box (3) is threadedly connected to the dust outlet (122).

5. A mine smoke sensor according to claim 1, characterized in that: The mining smoke sensor also includes a lifting mechanism (4); the lifting mechanism (4) is connected to the mounting mechanism (5), and the lifting mechanism (4) includes a lifting bracket (41), a lifting roller (42), a lifting rope (43) and a lifting motor (44); the lifting bracket (41) is arranged on the first shell (11); the lifting roller (42) is rotatably connected to the lifting bracket (41); the lifting rope (43) is wound around the lifting roller (42), wherein one end of the lifting rope (43) is connected to the lifting roller (42), and the other end is connected to the first shell (11); the lifting motor (44) is used to drive the lifting roller (42) to rotate.

6. A mine smoke sensor according to claim 5, characterized in that: The mounting mechanism (5) comprises a mounting plate (54), a first mounting block (51), a second mounting block (52) and a rebound assembly (53); the mounting plate (54) is connected to the lifting bracket (41); the first mounting block (51) is arranged on the mounting plate (54); the second mounting block (52) is rotatably arranged on the mounting plate (54) through the rebound assembly (53); a hanging space is provided between the first mounting block (51) and the second mounting block (52), and the size of the hanging space is changeable; the rebound assembly (53) is used to drive the second mounting block (52) to move so that the size of the hanging space changes.

7. A mine smoke sensor according to claim 6, characterized in that: The rebound assembly (53) comprises a rebound block (531) and a return torsion spring (532); the rebound block (531) is arranged on the second mounting block (52); the return torsion spring (532) is arranged on the rotating shaft between the second mounting block (52) and the mounting plate (54), and the return torsion spring (532) is used to drive the second mounting block (52) to return to motion.

8. A mine smoke sensor according to claim 1, characterized in that: The driving assembly (23) comprises a driving motor (231), a driving gear (232) and a driving ring gear (233); the driving ring gear (233) is arranged on the first housing (11), the driving gear (232) is arranged on the second housing (12) through the driving motor (231), and the driving ring gear (233) is meshed with the driving gear (232); the driving motor (231) is used to drive the driving gear (232) to rotate.

9. A mine smoke sensor according to claim 1, characterized in that: The mining smoke sensor further comprises an opening and closing mechanism (6) for closing the passage between the first shell (11) and the second shell (12); the opening and closing mechanism (6) comprises a fixed disk (61), a moving ring (62) and a plurality of closing members (63) arranged on the moving ring (62); the fixed disk (61) is arranged at a connecting position between the first shell (11) and the second shell (12), and the fixed disk (61) has a connecting hole (611); the moving ring (62) is rotatably connected to the fixed disk (61), and the closing member (63) is connected to the moving ring (62); the movement of the moving ring (62) drives the closing member (63) to move, so that the plurality of closing members (63) cooperate to block the connecting hole (611).

10. A mine smoke sensor according to claim 9, characterized in that: The closing member (63) includes a closing link (631) and a closing plate (632); one end of the closing link (631) is rotationally connected to the moving ring (62), and the axial direction of the rotational connection between the closing link (631) and the moving ring (62) is perpendicular to the plane where the fixed disk (61) is located; the closing plate (632) is connected to the other end of the closing link (631); the side of the closing plate (632) away from the closing link (631) is rotationally connected to the fixed disk (61), wherein the axial direction of the rotational connection between the closing plate (632) and the fixed disk (61) is the same as the axial direction of the rotational connection between the closing link (631) and the moving ring (62).

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