CN112881644B - Gas detection device for coal mine - Google Patents
Gas detection device for coal mine Download PDFInfo
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- CN112881644B CN112881644B CN202110044885.5A CN202110044885A CN112881644B CN 112881644 B CN112881644 B CN 112881644B CN 202110044885 A CN202110044885 A CN 202110044885A CN 112881644 B CN112881644 B CN 112881644B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
Abstract
The invention discloses a gas detection device for a coal mine, and belongs to the field of coal mine detection equipment. A gas detection device for a coal mine comprises a first box body and a second box body, wherein a protective device is connected inside the second box body, one end of the protective device is connected to the inner wall of the second box body, one end of the protective device, which is far away from the second box body, is connected with a gas sensor body, the bottom wall of the gas sensor body is connected with a connecting shaft, the inner wall of the first box body is connected with a fixed plate, an air exhaust mechanism, a first detachable filter element and a second detachable filter element, the outer wall of the fixed plate is fixedly connected with a driving motor, the output end of the driving motor penetrates through the fixed plate and is connected with a reciprocating mechanism, the output end of the reciprocating mechanism is connected with a connecting rod and a cleaning mechanism, and the output end of the sliding mechanism is matched with the fixed plate; the device has a simple structure, is convenient to operate, can effectively avoid the damage of the abnormal conditions of shaking or collision to equipment, and can clean the surface of the equipment in a reciprocating way, thereby improving the detection accuracy of the device.
Description
Technical Field
The invention relates to the technical field of coal mine detection equipment, in particular to a gas detection device for a coal mine.
Background
The gas is colorless, tasteless and odorless, when the gas reaches a certain concentration, people can suffocate due to oxygen deficiency and can be burnt or exploded, the gas exists in a free state and an absorption state in a coal body or surrounding rocks, statistics show that a high gas mine and a gas outburst mine in China account for about half of the total number of the mines, the number of dead people caused by gas accidents accounts for more than 60% of the total number of dead people of various accidents of the coal mine, and the number of the gas accidents accounts for more than 70% of the total number of the accidents of the coal mine, so that the gas monitoring work is made to have important significance for the safe production and the long-term development of coal enterprises.
The invention discloses a gas detection device with the publication number of CN208672605U through retrieval, and the gas detection device comprises a base and a gas sensor body, wherein rollers are arranged below the base, pedals are arranged on the side faces of the rollers, a buffer layer is arranged above the base, a fixed shell is arranged above the buffer layer, the gas sensor body is positioned in the fixed shell, a detection head is arranged below the gas sensor body, a ventilation pipeline is arranged below the detection head, a movable dust shielding plate is arranged on the inner side of a movable groove, a clamping block is arranged on the lateral upper side of the movable dust shielding plate, a dust filtering screen plate is arranged behind the movable dust shielding plate, an air outlet is arranged behind the ventilation pipeline, and a fan is arranged on the side face of the air outlet. This gas detection device is provided with movable groove, can be convenient for hide dirt board and strain the dirt otter board to the activity and install and dismantle, play dirt-proof effect in to air pipe, and the dirt otter board of straining in the movable groove still is convenient for clean and change, but the device is relatively poor at during operation stability, takes place the abnormal conditions that trembles easily or collide with, and the device's filter effect is relatively poor, and then influences the degree of accuracy that its detected, therefore the device still has certain weak point.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the stability is poor, the abnormal conditions of shaking or collision are easy to occur, the filtering effect of the device is poor, and the detection accuracy is affected.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a gas detection device for coal mine, includes first box and second box, the second box is connected on first box roof, second box internal connection has protector, protector one end is connected on second box inner wall, protector keeps away from second box one end and is connected with the gas sensor body, be connected with the alarm lamp on the gas sensor body roof, the alarm lamp is kept away from gas sensor body one end and is passed the second box and outwards extend, be connected with the connecting axle on the gas sensor body diapire, the connecting axle is kept away from gas sensor body one end and is passed first box and be connected with detection mechanism, be connected with fixed plate, air exhaust mechanism on the first box inner wall, first filter core can be dismantled and the filter core can be dismantled to the second, fixedly connected with driving motor on the fixed plate outer wall, the driving motor output passes the fixed plate and is connected with reciprocating mechanism, the reciprocating mechanism output is connected with connecting rod and clearance mechanism, clearance mechanism keeps away from reciprocating mechanism one end and can dismantle the filter core phase-match with the second with the clearance mechanism, clearance mechanism is provided with two sets ofly about the fixed plate, be connected through the connecting rod between the clearance mechanism, be connected with sliding mechanism on the connecting rod diapire, the sliding mechanism output and the fixed plate phase-match.
Preferably, the protection device comprises a rotating mechanism and a buffer device, the rotating mechanism comprises a fixed rod and a first connecting rod, the fixed rod is connected to the inner wall of the second box body, the fixed rod is far away from one end of the second box body and is connected with the first connecting rod in a rotating mode, one end, far away from the fixed rod, of the first connecting rod is connected with the second connecting rod, one side, far away from the first connecting rod, of the second connecting rod is connected to the outer wall of the gas sensor body, one end of the buffer device is connected to the outer wall of the fixed rod, and one end, far away from the fixed rod, of the buffer device is connected to the outer wall of the second connecting rod.
Preferably, buffer includes first damper and second damper, first damper includes first fixing base and second fixing base, a first fixing base side end is connected on the dead lever outer wall, second fixing base one end is connected on the second connecting rod outer wall, and is connected with first elastic component between first fixing base and the second fixing base, first elastic component one end is rotated and is connected on the dead lever outer wall, first elastic component is kept away from dead lever one end and is rotated and connect on second fixing base inner wall, second damper one end is connected on first connecting rod outer wall, second damper keeps away from first connecting rod one end and connects on second fixing base outer wall.
Preferably, the second damping mechanism comprises a third fixing seat and a second elastic part, the third fixing seat is rotatably connected to the outer wall of the first connecting rod, one end of the second elastic part is connected to the outer wall of the third fixing seat, and one end of the second elastic part, far away from the third fixing seat, is rotatably connected to the outer wall of the second fixing seat.
Preferably, the detection mechanism comprises a detection contact, one end of the detection contact is rotatably connected to the outer wall of the connecting shaft, and the detection contact is matched with the connecting shaft through a locking assembly.
Preferably, the air exhaust mechanism comprises a fan and an air pipe, the fan is connected to the inner wall of the first box body, one end of the air pipe is connected to the output end of the fan, and one end, far away from the fan, of the air pipe is connected to the inner wall of the first box body.
Preferably, the reciprocating mechanism comprises an eccentric wheel, a first connecting plate and a sliding plate, the eccentric wheel and the first connecting plate are rotatably connected to the outer wall of the fixing plate, and two ends of the sliding plate penetrate through the first box body and extend towards two sides.
Preferably, the outer wall of the eccentric wheel is fixedly connected with a first fixing shaft and a second fixing shaft, the outer wall of the sliding plate is connected with a second connecting plate, one end, far away from the sliding plate, of the second connecting plate is matched with the first fixing shaft, one end, far away from the second fixing shaft, of the second connecting plate is matched with the second fixing shaft, a notch is formed in one end, far away from the second fixing shaft, of the first connecting plate, and the notch is matched with the sliding plate.
Preferably, two sets of clearance mechanism all includes cardboard, stiffener and cleaning roller, the cardboard is connected on the slide outer wall, stiffener one end is connected on the slide roof, the stiffener is kept away from slide one end and is connected on the cardboard outer wall, the cleaning roller is connected and is rotated and connect on the cardboard inner wall, just the filter core phase-match can be dismantled with the second to the cleaning roller.
Preferably, slide mechanism includes the slider, slider fixed connection is on the connecting rod diapire, just the notch phase-match that connecting rod one end and fixed plate roof cut is kept away from to the slider.
Compared with the prior art, the invention provides a gas detection device for a coal mine, which has the following beneficial effects:
1. this gas detection device for coal mine, through being provided with first connecting rod, first elastic component and second elastic component, and then when the gas sensor body takes place to shake or the abnormal conditions who collides with, and then drive first connecting rod and rotate on the dead lever outer wall, and then first elastic component has opposite effort to the gas sensor body through the second connecting rod, thereby the power of the shake that first elastic component and gas sensor body produced offsets each other, and then produce absorbing effect to it, and simultaneously the elastic component has opposite pulling force to it, thereby further produce absorbing effect to it, and then avoid its abnormal conditions who takes place to shake or collide with to the injury of equipment, thereby improve the stability of the device operation.
2. This gas detection device for coal mine, through being provided with the eccentric wheel, the slide, first connecting plate, cardboard and cleaning roller, and then motor output end drives the eccentric wheel and rotates, and then the eccentric wheel drives the slide through first fixed axle and second fixed axle and slides on along first box inner wall, and then drive the slide through first connecting plate and second connecting plate and be reciprocating motion, and then the slide passes through the cardboard and drives the cleaning roller and can dismantle filter core surface slip along the second, thereby to reciprocal clearance its surface, and then avoid its surface to take place to block up abnormal phenomena, and then improve the device's filter effect, thereby improve the degree of accuracy that the device detected.
3. This gas detection device for coal mine, through being provided with the stiffener, and then when the cleaning roller moves, the cardboard drives the stiffener motion simultaneously, and then the stiffener has certain holding power to the cardboard, and then can prevent that it from taking place the unusual effect of rocking, thereby can guarantee the stability when the cleaning roller moves, and then improve the effect of the device clearance, through being provided with fan and tuber pipe, and then can make the air in the first box be in the mobile state, thereby improve the accuracy of detection contact measurement.
The device has the advantages of simple structure and convenient operation, can effectively avoid the damage of the abnormal conditions of shaking or collision to the equipment, and can perform reciprocating cleaning on the surface of the equipment, thereby improving the detection accuracy of the device.
Drawings
Fig. 1 is a schematic structural diagram of a gas detection device for a coal mine according to the present invention;
fig. 2 is a first cross-sectional view of a gas detection device for a coal mine according to the present invention;
fig. 3 is a second cross-sectional view of a gas detection device for coal mine according to the present invention;
fig. 4 is a third cross-sectional view of a gas detection device for coal mines according to the present invention;
fig. 5 is a cross-sectional view of a gas detection device for coal mine according to the present invention;
fig. 6 is an enlarged view of a portion a in fig. 2 of the gas detection device for coal mines according to the present invention;
FIG. 7 is an enlarged view of a portion B of the gas detection device for coal mines in accordance with the present invention;
fig. 8 is an enlarged view of a portion C of fig. 3 of the gas detection device for coal mines according to the present invention;
fig. 9 is an enlarged view of a portion D in fig. 4 of the gas detection device for coal mines according to the present invention.
In the figure: 1. a first case; 101. a second case; 102. fixing the rod; 103. a first link; 104. a second link; 105. a gas sensor body; 106. a third fixed seat; 107. a second elastic member; 108. a second fixed seat; 109. a first fixed seat; 110. a first elastic member; 2. a fixing plate; 201. an eccentric wheel; 202. a second fixed shaft; 203. a first fixed shaft; 204. a first connecting plate; 206. a second connecting plate; 207. a slide plate; 208. a reinforcing bar; 209. clamping a plate; 210. cleaning the roller; 3. a connecting rod; 301. a drive motor; 302. a fan; 303. an air duct; 304. a connecting shaft; 305. detecting a contact; 306. a second removable filter element; 307. a first removable filter element; 308. a notch; 309. a slide block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-9, a gas detection device for coal mines, including a first box 1 and a second box 101, the second box 101 is connected to the top wall of the first box 1, the inside of the second box 101 is connected with a protection device, one end of the protection device is connected to the inner wall of the second box 101, one end of the protection device far away from the second box 101 is connected with a gas sensor body 105, the top wall of the gas sensor body 105 is connected with an alarm lamp, one end of the alarm lamp far away from the gas sensor body 105 passes through the second box 101 and extends outwards, the bottom wall of the gas sensor body 105 is connected with a connecting shaft 304, one end of the connecting shaft 304 far away from the gas sensor body 105 passes through the first box 1 and is connected with a detection mechanism, the inner wall of the first box 1 is connected with a fixed plate 2, an air suction mechanism, a first detachable filter element 307 and a second detachable filter element 306, a driving motor 301 is fixedly connected to the outer wall of the fixed plate 2, the output end of the driving motor 301 passes through the fixed plate 2 and is connected with a reciprocating mechanism, the output end of the reciprocating mechanism is connected with a connecting rod 3 and a cleaning mechanism, one end of the cleaning mechanism far away from the reciprocating mechanism is connected with the second detachable filter element 306, the reciprocating mechanism, the cleaning mechanism is connected with the fixed plate 2, two sets a cleaning mechanism, the connecting rod 3 and the sliding mechanism 2 are connected with the sliding mechanism 2;
the protection device comprises a rotating mechanism and a buffer device, the rotating mechanism comprises a fixed rod 102 and a first connecting rod 103, the fixed rod 102 is connected to the inner wall of the second box body 101, one end, far away from the second box body 101, of the fixed rod 102 is rotatably connected with the first connecting rod 103, one end, far away from the fixed rod 102, of the first connecting rod 103 is connected with a second connecting rod 104, one side, far away from the first connecting rod 103, of the second connecting rod 104 is connected to the outer wall of the gas sensor body 105, one end of the buffer device is connected to the outer wall of the fixed rod 102, and one end, far away from the fixed rod 102, of the buffer device is connected to the outer wall of the second connecting rod 104;
the buffer device comprises a first shock absorption mechanism and a second shock absorption mechanism, the first shock absorption mechanism comprises a first fixed seat 109 and a second fixed seat 108, one side end of the first fixed seat 109 is connected to the outer wall of the fixed rod 102, one end of the second fixed seat 108 is connected to the outer wall of the second connecting rod 104, a first elastic part 110 is connected between the first fixed seat 109 and the second fixed seat 108, one end of the first elastic part 110 is rotatably connected to the outer wall of the fixed rod 102, one end, far away from the fixed rod 102, of the first elastic part 110 is rotatably connected to the inner wall of the second fixed seat 108, one end of the second shock absorption mechanism is connected to the outer wall of the first connecting rod 103, and one end, far away from the first connecting rod 103, of the second shock absorption mechanism is connected to the outer wall of the second fixed seat 108;
the second damping mechanism comprises a third fixed seat 106 and a second elastic part 107, the third fixed seat 106 is rotatably connected to the outer wall of the first connecting rod 103, one end of the second elastic part 107 is connected to the outer wall of the third fixed seat 106, and the end, far away from the third fixed seat 106, of the second elastic part 107 is rotatably connected to the outer wall of the second fixed seat 108;
the detection mechanism comprises a detection contact 305, one end of the detection contact 305 is rotatably connected to the outer wall of the connecting shaft 304, and the detection contact 305 is matched with the connecting shaft 304 through a locking assembly;
the air exhaust mechanism comprises a fan 302 and an air pipe 303, the fan 302 is connected to the inner wall of the first box body 1, one end of the air pipe 303 is connected to the output end of the fan 302, and the end, far away from the fan 302, of the air pipe 303 is connected to the inner wall of the first box body 1;
the reciprocating mechanism comprises an eccentric wheel 201, a first connecting plate 204 and a sliding plate 207, wherein the eccentric wheel 201 and the first connecting plate 204 are rotatably connected to the outer wall of the fixed plate 2, and two ends of the sliding plate 207 penetrate through the first box body 1 and extend towards two sides;
a first fixed shaft 203 and a second fixed shaft 202 are fixedly connected to the outer wall of the eccentric wheel 201, a second connecting plate 206 is connected to the outer wall of the sliding plate 207, one end, far away from the sliding plate 207, of the second connecting plate 206 is matched with the first fixed shaft 203, one end, far away from the sliding plate 207, of the first connecting plate 204 is matched with the second fixed shaft 202, a notch 308 is formed in one end, far away from the second fixed shaft 202, of the first connecting plate 204, and the notch 308 is matched with the sliding plate 207;
the two groups of cleaning mechanisms respectively comprise a clamping plate 209, a reinforcing rod 208 and a cleaning roller 210, the clamping plate 209 is connected to the outer wall of the sliding plate 207, one end of the reinforcing rod 208 is connected to the top wall of the sliding plate 207, one end of the reinforcing rod 208, which is far away from the sliding plate 207, is connected to the outer wall of the clamping plate 209, the cleaning roller 210 is connected to the inner wall of the clamping plate 209 in a rotating manner, and the cleaning roller 210 is matched with the second detachable filter element 306;
the sliding mechanism comprises a sliding block 309, the sliding block 309 is fixedly connected to the bottom wall of the connecting rod 3, and one end of the sliding block 309, which is far away from the connecting rod 3, is matched with a notch 308 formed in the top wall of the fixing plate 2;
in the invention, when in use, the driving motor 301 is started, the output end of the driving motor 301 drives the eccentric wheel 201 to rotate, the eccentric wheel 201 drives the second connecting plate 206 and the first connecting plate 204 to rotate through the first fixing shaft 203 and the second fixing shaft 202, so that the sliding plate 207 is driven to slide along the inner wall of the first box body 1, the sliding plate 207 is driven to do reciprocating motion through the first connecting plate 204 and the second connecting plate 206, the sliding plate 207 drives the cleaning roller 210 to slide along the surface of the second detachable filter element 306 through the clamping plate 209, and the eccentric wheel 201, the sliding plate 207, the first connecting plate 204, the clamping plate 209 and the cleaning roller 210 are arranged, so that the surfaces of the cleaning roller are cleaned in a reciprocating motion, the abnormal phenomenon of blockage of the surfaces of the cleaning roller is avoided, the filtering effect of the device is improved, and the detection accuracy of the device is improved, meanwhile, the sliding plate 207 drives the connecting rod 3 to slide along the notch 308 on the inner wall of the fixed plate 2, so as to drive a group of cleaning mechanisms far away from the sliding plate 207 to perform cleaning operation, thereby improving the cleaning effect, further, by arranging the reinforcing rod 208, further, when the cleaning roller 210 operates, the clamping plate 209 drives the reinforcing rod 208 to move, further, the reinforcing rod 208 has certain supporting force on the clamping plate 209, further, the abnormal shaking effect can be prevented, further, the stability when the cleaning roller 210 operates can be ensured, further, the cleaning effect of the device is improved, meanwhile, the fan 302 is started, further, by arranging the fan 302 and the air pipe 303, further, the air in the first box body 1 can be in a flowing state, further, the accuracy of measurement of the detection contact 305 is improved, further, when the gas sensor body 105 is in abnormal conditions of shaking or colliding, further, the first connecting rod 103 is driven to rotate along the outer wall of the fixed rod 102, and then first elastic component 110 has opposite effort to gas sensor body 105 through second connecting rod 104, thereby the power of the shake that first elastic component 110 and gas sensor body 105 produced offsets each other, and then to its shock-absorbing effect that produces, second elastic component 107 has opposite pulling force to it simultaneously, and then through being provided with first connecting rod 103, first elastic component 110 and second elastic component 107, thereby further to its shock-absorbing effect that produces, and then avoid its abnormal conditions that takes place to shake or collide with to the injury of equipment, thereby improve the stability of the device operation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. The utility model provides a gas detection device for coal mine, includes first box (1) and second box (101), its characterized in that, second box (101) is connected on first box (1) roof, second box (101) internal connection has protector, protector one end is connected on second box (101) inner wall, protector keeps away from second box (101) one end and is connected with gas sensor body (105), be connected with the alarm lamp on gas sensor body (105) roof, the alarm lamp is kept away from gas sensor body (105) one end and is passed second box (101) and outside extension, be connected with on gas sensor body (105) the diapire (304), gas sensor body connecting axle (105) one end is kept away from in connecting axle (304) and is passed first box (1) and be connected with detection mechanism, be connected with on first box (1) inner wall fixed plate (2), air exhaust mechanism, first filter core (306) and second can be dismantled, fixed connection has driving motor (301) on fixed plate (2) outer wall, driving motor (301) output passes fixed plate (2) clearance output and is connected with reciprocating mechanism (307), reciprocating mechanism clearance mechanism (306) and reciprocating mechanism (306) is connected with the clearance mechanism (307) and reciprocating mechanism, the cleaning mechanisms are arranged in two groups relative to the fixed plate (2), the two groups of cleaning mechanisms are connected through a connecting rod (3), the bottom wall of the connecting rod (3) is connected with a sliding mechanism, and the output end of the sliding mechanism is matched with the fixed plate (2);
the reciprocating mechanism comprises an eccentric wheel (201), a first connecting plate (204) and a sliding plate (207), the eccentric wheel (201) and the first connecting plate (204) are rotatably connected to the outer wall of the fixing plate (2), and two ends of the sliding plate (207) penetrate through the first box body (1) and extend towards two sides;
a first fixing shaft (203) and a second fixing shaft (202) are fixedly connected to the outer wall of the eccentric wheel (201), a second connecting plate (206) is connected to the outer wall of the sliding plate (207), one end, far away from the sliding plate (207), of the second connecting plate (206) is matched with the first fixing shaft (203), one end of the first connecting plate (204) is matched with the second fixing shaft (202), a notch (308) is formed in one end, far away from the second fixing shaft (202), of the first connecting plate (204), and the notch (308) is matched with the sliding plate (207);
the two groups of cleaning mechanisms respectively comprise a clamping plate (209), a reinforcing rod (208) and a cleaning roller (210), the clamping plate (209) is connected to the outer wall of the sliding plate (207), one end of the reinforcing rod (208) is connected to the top wall of the sliding plate (207), one end, far away from the sliding plate (207), of the reinforcing rod (208) is connected to the outer wall of the clamping plate (209), the cleaning roller (210) is connected to the inner wall of the clamping plate (209) in a rotating mode, and the cleaning roller (210) is matched with the second detachable filter element (306);
the protection device comprises a rotating mechanism and a buffer device, wherein the rotating mechanism comprises a fixed rod (102) and a first connecting rod (103), the fixed rod (102) is connected to the inner wall of a second box body (101), the fixed rod (102) is far away from one end of the second box body (101) and is connected with the first connecting rod (103) in a rotating mode, one end of the first connecting rod (103) far away from the fixed rod (102) is connected with a second connecting rod (104), the second connecting rod (104) far away from one side of the first connecting rod (103) and is connected to the outer wall of a gas sensor body (105), one end of the buffer device is connected to the outer wall of the fixed rod (102), and one end of the buffer device far away from the fixed rod (102) is connected to the outer wall of the second connecting rod (104).
2. The coal mine gas detection device according to claim 1, wherein the buffer device comprises a first shock absorption mechanism and a second shock absorption mechanism, the first shock absorption mechanism comprises a first fixed seat (109) and a second fixed seat (108), one side end of the first fixed seat (109) is connected to the outer wall of the fixing rod (102), one end of the second fixed seat (108) is connected to the outer wall of the second connecting rod (104), a first elastic part (110) is connected between the first fixed seat (109) and the second fixed seat (108), one end of the first elastic part (110) is rotatably connected to the outer wall of the fixing rod (102), one end of the first elastic part (110), which is far away from the fixing rod (102), is rotatably connected to the inner wall of the second fixed seat (108), one end of the second shock absorption mechanism is connected to the outer wall of the first connecting rod (103), and one end of the second shock absorption mechanism, which is far away from the first connecting rod (103), is connected to the outer wall of the second fixed seat (108).
3. The coal mine gas detection device according to claim 2, wherein the second damping mechanism comprises a third fixing seat (106) and a second elastic member (107), the third fixing seat (106) is rotatably connected to the outer wall of the first connecting rod (103), one end of the second elastic member (107) is connected to the outer wall of the third fixing seat (106), and one end of the second elastic member (107) far away from the third fixing seat (106) is rotatably connected to the outer wall of the second fixing seat (108).
4. The coal mine gas detection device according to claim 1, wherein the detection mechanism comprises a detection contact (305), one end of the detection contact (305) is rotatably connected to the outer wall of the connecting shaft (304), and the detection contact (305) is matched with the connecting shaft (304) through a locking assembly.
5. The gas detection device for the coal mine according to claim 1, wherein the air pumping mechanism comprises a fan (302) and an air pipe (303), the fan (302) is connected to the inner wall of the first box body (1), one end of the air pipe (303) is connected to the output end of the fan (302), and one end of the air pipe (303) far away from the fan (302) is connected to the inner wall of the first box body (1).
6. The coal mine gas detection device according to claim 1, wherein the sliding mechanism comprises a sliding block (309), the sliding block (309) is fixedly connected to the bottom wall of the connecting rod (3), and one end of the sliding block (309) far away from the connecting rod (3) is matched with a notch (308) cut in the top wall of the fixing plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110044885.5A CN112881644B (en) | 2021-01-13 | 2021-01-13 | Gas detection device for coal mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110044885.5A CN112881644B (en) | 2021-01-13 | 2021-01-13 | Gas detection device for coal mine |
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| CN112881644A CN112881644A (en) | 2021-06-01 |
| CN112881644B true CN112881644B (en) | 2022-11-25 |
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| CN113464193A (en) * | 2021-06-24 | 2021-10-01 | 中国安全生产科学研究院 | Underground coal mine gas inspection device |
| CN114537554B (en) * | 2022-03-07 | 2023-03-21 | 电子科技大学成都学院 | Coal mine safety searching tool car |
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