CN115419793A - Early warning device for roof collapse disaster of coal mine tunnel - Google Patents
Early warning device for roof collapse disaster of coal mine tunnel Download PDFInfo
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- CN115419793A CN115419793A CN202211239975.0A CN202211239975A CN115419793A CN 115419793 A CN115419793 A CN 115419793A CN 202211239975 A CN202211239975 A CN 202211239975A CN 115419793 A CN115419793 A CN 115419793A
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- 239000003245 coal Substances 0.000 title claims abstract description 56
- 230000003028 elevating effect Effects 0.000 claims abstract 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 238000005065 mining Methods 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 2
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention relates to the technical field of coal mining, and particularly discloses a coal mine roadway roof fall disaster early warning device, which comprises a base and further comprises: the setting is in the shifting chute on the base upper surface, the top of base is provided with the connecting plate, the top of connecting plate is provided with the backup pad, the inside of shifting chute is provided with the elevating system who is used for the connecting plate to go up and down, be provided with the supporting mechanism who is used for supporting the backup pad on the upper surface of connecting plate, be equipped with the power unit who is used for providing power on the side of base, be provided with on the upper surface of base and be used for controlling supporting mechanism moving control mechanism, through elevating system, be favorable to adjusting the height of the early warning device of colliery tunnel roof fall calamity, be convenient for detect the tunnel, through supporting mechanism, be favorable to taking place the back in roof fall calamity, can block and support the tunnel through the object that the backup pad will drop, the workman of being convenient for withdraws from the tunnel.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a coal mine roadway roof collapse disaster early warning device.
Background
Along with the rapid development of coal mining industry, the requirement on a mine roadway is higher and higher, the factors for aggravating the potential roof collapse hazard of the roadway are increased, when the roof collapse disaster occurs to the coal mine roadway, huge striking is caused to workers in the coal mine roadway, in the coal mining process, the top of the coal mine roadway must be detected, the early warning device for detecting the roof collapse disaster of the coal mine roadway needs to be used, the early warning device for detecting the roof collapse disaster of the coal mine roadway is a device capable of detecting the coal mine roadway condition in real time and giving an alarm in time, the early warning device for the roof collapse disaster of the coal mine roadway mainly comprises a monitoring component, a supporting component, a power component and an alarm component, and the early warning device for the roof collapse disaster of the coal mine roadway has the advantages of accurate monitoring, timely alarming and the like.
The height of the early warning device of the common coal mine tunnel roof fall calamity is fixed, when monitoring the coal mine tunnel of different heights, the top of the coal mine tunnel is hugged closely to the detection part of the coal mine tunnel roof fall calamity to be monitored, the effect of monitoring is better and more accurate like this, in order to facilitate the better monitoring coal mine tunnel roof fall of the early warning device of the coal mine tunnel roof fall calamity, need to mat the object with the early warning device bottom of the coal mine tunnel roof fall calamity, because the space of the coal mine tunnel is less, lead to the very complicated of process of whole bedding, the early warning device that is unfavorable for the coal mine tunnel roof fall calamity uses in the coal mine tunnel.
The early warning device of common coal mine tunnel roof fall calamity only sends alarm device after coal mine tunnel takes place the roof fall calamity, can not withdraw from coal mine tunnel to the workman in the coal mine tunnel and provide the protection for the roof fall calamity can block up the tunnel, is unfavorable for the manual work to withdraw through the tunnel.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a coal mine roadway roof fall disaster early warning device to solve the problems in the background technology.
The invention provides the following technical scheme: the utility model provides a coal mine tunnel roof fall calamity's early warning device, includes the base, still includes: the device comprises a base, a movable groove, a connecting plate, a supporting plate, a lifting mechanism, a supporting mechanism, a power mechanism and a control mechanism, wherein the movable groove is arranged on the upper surface of the base;
the lifting mechanism comprises two fixed plates fixed on the side walls of the moving grooves, a threaded rod is rotatably connected to the lower surface of each fixed plate, the upper end of each threaded rod penetrates through the fixed plates and is sleeved with a lifting rod, the upper end of each lifting rod is fixedly connected with the lower surface of the corresponding connecting plate, a lifting groove is formed in the lower surface of each lifting rod, and the upper end of each threaded rod extends into the corresponding lifting groove;
furthermore, two the lifter fixed connection respectively is in the lower surface both sides of connecting plate, the screw rod surface is provided with the screw thread and with lift groove threaded connection.
Further, supporting mechanism is including setting up the storage tank on the connecting plate upper surface, storage tank bottom sliding connection has a first movable plate and a second movable plate, be connected through rotation of axes between first movable plate and the second movable plate, be provided with the sliding tray on the backup pad lower surface, first movable plate upper end and the upper end of second movable plate all pass through rotation of axes with the sliding tray and are connected, the storage tank lateral wall rotates and is connected with double threaded rod.
Furthermore, the quantity of first movable plate and second movable plate is a plurality of and be the setting of scissors structure between, double threaded rod runs through first movable plate and second movable plate and with these two threaded connection.
Further, power unit includes a supporting bench fixedly connected to the side of the base, install the motor on supporting platform's the upper surface, the lateral wall of shifting chute rotates and is connected with the rotary rod, rotary rod outer wall sliding connection removes a section of thick bamboo, the side of removing a section of thick bamboo is equipped with the draw-in groove, it is equipped with two first bevel gears to remove a section of thick bamboo outer wall cover, the lower tip cover of two threaded rods is equipped with the second bevel gear with first bevel gear adaptation, the one end of rotary rod run through the base and with the terminal fixed connection of output shaft of motor.
Further, the draw-in groove is passed to rotary rod one end, the draw-in groove longitudinal section is the rectangle, and rotary rod 703 is owing to a cylinder and a cuboid combination form, the draw-in groove cover is established on the surface of the cuboid of rotary rod.
Further, control mechanism includes the bracing piece of fixed connection on the base upper surface, be provided with flexible groove on the side of bracing piece, the inside sliding connection in flexible groove has the telescopic link, the lateral wall fixedly connected with spring in flexible groove, the other end and the telescopic link fixed connection of spring, the side of telescopic link is rotated and is connected with the round bar, the rotary rod is located to rotate on the outer wall of movable groove portion and is connected with the rotary cylinder, the rotary cylinder is close to fixedly connected with restriction piece on the side of movable cylinder, the movable cylinder is close to and is provided with the restriction groove on the side of rotary cylinder, round bar, rotary cylinder and double-end threaded rod one end extend connecting plate side part outer wall all overlap and are equipped with the rotation wheel, the bottom fixedly connected with electric telescopic handle in movable groove, electric telescopic handle's flexible end fixedly connected with connecting block.
Furthermore, the rotary rod runs through the connecting block and is connected with the rotary rod rotation, and is three rotate and connect through the belt between the wheel.
The invention has the technical effects and advantages that:
1. the lifting mechanism is arranged, so that the height of the early warning device for the roof fall disaster of the coal mine tunnel can be adjusted according to the height of the coal mine tunnel, the early warning device for the roof fall disaster of the coal mine tunnel is enabled to be tightly attached to the tunnel, and the tunnel can be conveniently detected.
2. The supporting mechanism is arranged, so that the falling objects can be blocked and the roadway can be supported through the supporting plate after the roof fall disaster happens, the roadway cannot collapse, and workers can conveniently evacuate from the roadway.
3. The coal mine tunnel roof collapse disaster early warning device is provided with the power mechanism, so that the height of the early warning device for the roof collapse disaster of the coal mine tunnel can be automatically adjusted, the support mechanism can be automatically driven to operate, and manual operation is not needed.
4. The control mechanism is arranged, so that the operation of the lifting mechanism and the supporting mechanism can be controlled by one power source, the utilization rate of the power source is improved, and the use of the power source is saved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic sectional view of the lifting mechanism of the present invention.
Fig. 3 is a schematic structural diagram of the supporting mechanism of the present invention.
Fig. 4 is an exploded view of the storage tank of fig. 3.
Fig. 5 is a schematic structural diagram of the power mechanism according to the present invention.
Fig. 6 is a schematic view of the structure of the moving slot in fig. 5.
Fig. 7 is a schematic structural diagram of the control mechanism of the present invention.
Fig. 8 is an exploded view of the telescopic slot structure of fig. 7.
Fig. 9 is a schematic view of the card slot structure in fig. 7.
Fig. 10 is an exploded view of the moving cylinder structure of fig. 7.
The reference signs are: 1. a base; 2. a moving groove; 3. a connecting plate; 4. a support plate; 5. a lifting mechanism; 501. a threaded rod; 502. a lifting rod; 503. a lifting groove; 504. a fixing plate; 6. a support mechanism; 601. a storage tank; 602. a first moving plate; 603. a second moving plate; 604. a rotating shaft; 605. a double-headed threaded rod; 606. a sliding groove; 7. a power mechanism; 701. a support table; 702. a motor; 703. rotating the rod; 704. a first bevel gear; 705. a second bevel gear; 706. moving the drum; 707. a card slot; 8. a control mechanism; 801. a support bar; 802. a telescopic rod; 803. a round bar; 804. a rotating wheel; 805. a telescopic groove; 806. a spring; 807. a rotating drum; 808. a limiting block; 809. a limiting groove; 810. an electric telescopic rod; 811. and (4) connecting the blocks.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, the invention provides a coal mine roadway roof fall disaster early warning device, which comprises a base 1 and further comprises: the coal mine roof caving disaster early warning device is characterized by comprising a moving groove 2 arranged on the upper surface of a base 1, a connecting plate 3 is arranged above the base 1, a supporting plate 4 is arranged above the connecting plate 3, a lifting mechanism 5 used for lifting the connecting plate 3 is arranged inside the moving groove 2, a supporting mechanism 6 used for supporting the supporting plate 4 is arranged on the upper surface of the connecting plate 3, a power mechanism 7 used for providing power is arranged on the side surface of the base 1, a control mechanism 8 used for controlling the operation of the supporting mechanism 6 is arranged on the upper surface of the base 1, the height of the coal mine roof caving disaster early warning device can be adjusted through the arrangement of the lifting mechanism 5, the coal mine roof caving disaster early warning device is suitable for coal mine tunnels with different heights, the early warning device for the coal mine roof caving disaster is stronger in applicability, through the arrangement of the supporting plate 4 of a merchant when the roof caving disaster occurs, the aim of supporting the tunnels is achieved, workers can conveniently evacuate from the tunnels, the power mechanism 7 is arranged, power is provided for the lifting mechanism 5 and the supporting mechanism 6 through a motor 702, manual operation is not needed, the full-automatic operation is realized, the arrangement of a telescopic rod 8, the operation is controlled through an electric telescopic rod 810, and the use of a power source is saved;
the lifting mechanism 5 comprises two fixing plates 504 fixed on the side walls of the moving groove 2, a threaded rod 501 is rotatably connected to the lower surface of each fixing plate 504, the upper end of each threaded rod 501 penetrates through the fixing plate 504 and is sleeved with a lifting rod 502, the upper end of each lifting rod 502 is fixedly connected with the lower surface of the connecting plate 3, a lifting groove 503 is formed in the lower surface of each lifting rod 502, the upper end of each threaded rod 501 extends into the corresponding lifting groove 503, and the lifting mechanism 5 is arranged to adjust the height of the early warning device for the roof fall disasters of the coal mine roadway according to the height of the coal mine roadway, so that the early warning device for the roof fall disasters of the coal mine roadway is tightly attached to the roadway and is convenient for detecting the roadway;
referring to fig. 2, two lifter 502 are fixed connection respectively in the lower surface both sides of connecting plate 3, and threaded rod 501 surface is provided with the screw thread and with lifting groove 503 threaded connection, realizes that threaded rod 501 rotates and drives lifter 502 and connecting plate 3 and move up, is convenient for monitor the tunnel.
Referring to fig. 3 and 4, the supporting mechanism 6 includes a storage groove 601 disposed on the upper surface of the connecting plate 3, a first moving plate 602 and a second moving plate 603 are slidably connected to the bottom of the storage groove 601, the first moving plate 602 and the second moving plate 603 are rotatably connected through a rotating shaft 604, a sliding groove 606 is disposed on the lower surface of the supporting plate 4, the upper end of the first moving plate 602 and the upper end of the second moving plate 603 are rotatably connected to the sliding groove 606 through the rotating shaft 604, and a double-threaded rod 605 is rotatably connected to the side wall of the storage groove 601.
Referring to fig. 4, the first moving plate 602 and the second moving plate 603 are provided in a plurality of numbers and are arranged in a scissor-like structure therebetween, the double-threaded rod 605 penetrates through the first moving plate 602 and the second moving plate 603 and is in threaded connection with the first moving plate and the second moving plate 603, and the double-threaded rod 605 rotates to drive the first moving plate 603 and the second moving plate 605 sliding in the storage slot 601 to approach each other, so as to support the supporting plate 4.
Referring to fig. 5 and 6, the power mechanism 7 includes a supporting table 701 fixedly connected to the side of the base 1, a motor 702 is installed on the upper surface of the supporting table 701, a rotating rod 703 is rotatably connected to the side wall of the moving slot 2, the outer wall of the rotating rod 703 is slidably connected to a moving cylinder 706, a clamping groove 707 is formed in the side surface of the moving cylinder 706, two first bevel gears 704 are sleeved on the outer wall of the moving cylinder 706, a second bevel gear 705 matched with the first bevel gears 704 is sleeved on the lower end portion of each of the two threaded rods 501, one end of the rotating rod 703 penetrates through the base 1 and is fixedly connected with the tail end of an output shaft of the motor 702, and the height of the early warning device for roof collapse of a coal mine roadway can be automatically adjusted and the supporting mechanism can be automatically driven to run through the setting of the power mechanism 7, and manual operation is not needed.
Referring to fig. 6, one end of the rotating rod 703 penetrates through the clamping groove 707, the longitudinal section of the clamping groove 707 is rectangular, the rotating rod 703 is formed by combining a cylinder and a cuboid, and the clamping groove 707 is sleeved on the surface of the cuboid of the rotating rod 703, so that the purpose that the rotating rod 703 drives the moving cylinder 706 to rotate through the clamping groove 707 is achieved.
Referring to fig. 7, fig. 8, fig. 9 and fig. 10, the control mechanism 8 includes a support rod 801 fixedly connected to the upper surface of the base 1, a telescopic groove 805 is provided on a side surface of the support rod 801, an expansion link 802 is slidably connected to an inner portion of the telescopic groove 805, a spring 806 is fixedly connected to a side wall of the telescopic groove 805, another end of the spring 806 is fixedly connected to the telescopic link 802, a round rod 803 is rotatably connected to a side surface of the telescopic link 802, a rotation cylinder 807 is rotatably connected to an outer wall of a portion of the rotation cylinder 703 located on the moving groove 2, a limiting block 808 is fixedly connected to a side surface of the rotation cylinder 807 close to the moving cylinder 706, a limiting groove 809 is provided on a side surface of the moving cylinder 706 close to the rotation cylinder 807, a rotation wheel 804 is sleeved on the outer wall of a side portion of the connecting plate 807 3 extending from one end of the round rod 803, the rotation cylinder 807 and the double-headed threaded rod 605, an electric telescopic link 810 is fixedly connected to the bottom of the moving groove 2, a connecting block is fixedly connected to an expansion end of the electric telescopic link 810, and a connecting block is fixedly connected to the telescopic end of the control mechanism 8, thereby facilitating the operation of the lifting mechanism 5 and the support mechanism 6 to be controlled by one power source 811 by one power source, thereby improving the utilization ratio of the power source and saving the use of the power source.
Referring to fig. 7 and 10, the rotating rod 703 penetrates through the connecting block 811 and is rotatably connected with the rotating rod 703, and the three rotating wheels 804 are rotatably connected through a belt, so that the rotating cylinder 807, the round rod 803 and the double-headed threaded rod 605 are rotated.
The working principle of the invention is as follows: when the height of the early warning device for the roof fall disaster of the coal mine roadway is not consistent with the height of the roadway, the motor 702 is started, the motor 702 drives the rotating rod 703 to rotate, the longitudinal section of the clamping groove 707 is rectangular, the rotating rod 703 is formed by combining a cylinder and a cuboid, the clamping groove 707 is sleeved on the surface of the cuboid of the rotating rod 703, the rotating rod 703 is driven, the moving cylinder 706 and the first bevel gear 704 rotate, the electric telescopic rod 810 is started to drive the connecting block 811 and the moving cylinder 706 to move, the first bevel gear 704 is meshed with the second bevel gear 705, the rotation of the threaded rod 501 is realized, the lifting rod 502 is connected with the lifting rod 502 through threads, the lifting rod 502 drives the connecting plate 3 to move upwards, and the height of the device is changed;
when a roof fall disaster occurs in a roadway, the electric telescopic rod 810 is started to drive the connecting block 811 and the moving cylinder 706 to move, the limiting block 806 enters the limiting groove 809, the moving cylinder 706 drives the rotating cylinder 807 and the driving wheel 804 to rotate, the double-threaded rod 605 is rotated due to the design of the driving wheel 804, the first moving plate 602 and the second moving plate 603 are closed due to the threaded connection of the double-threaded rod 605 and the first moving plate 602 and the second moving plate 603, the first moving plate 602 and the second moving plate 603 are driven to rotate, the purpose of moving upwards of the support plate 4 is achieved, and the support of the roadway by the support plate 4 is achieved.
Claims (8)
1. The utility model provides a coal mine tunnel roof fall calamity's early warning device, includes base (1), its characterized in that still includes: the device comprises a base (1), a movable groove (2) arranged on the upper surface of the base (1), a connecting plate (3) arranged above the base (1), a supporting plate (4) arranged above the connecting plate (3), a lifting mechanism (5) used for lifting the connecting plate (3) arranged inside the movable groove (2), a supporting mechanism (6) used for supporting the supporting plate (4) arranged on the upper surface of the connecting plate (3), a power mechanism (7) used for providing power arranged on the side surface of the base (1), and a control mechanism (8) used for controlling the supporting mechanism (6) to operate arranged on the upper surface of the base (1);
elevating system (5) are including fixing two fixed plates (504) on moving groove (2) lateral wall, every it is connected with threaded rod (501) all to rotate on the lower surface of fixed plate (504), the upper end of threaded rod (501) runs through fixed plate (504) and overlaps and be equipped with lifter (502), the upper end of lifter (502) is connected with the lower fixed surface of connecting plate (3), be provided with lift groove (503) on the lower surface of lifter (502), the upper end of threaded rod (501) extends to inside lift groove (503).
2. The coal mine roadway roof fall disaster early warning device according to claim 1, characterized in that: two lifting rods (502) are respectively and fixedly connected to two sides of the lower surface of the connecting plate (3), and threads are arranged on the surface of the threaded rod (501) and are in threaded connection with the lifting groove (503).
3. The coal mine roadway roof fall disaster early warning device according to claim 1, characterized in that: the supporting mechanism (6) comprises a storage groove (601) arranged on the upper surface of the connecting plate (3), the bottom of the storage groove (601) is connected with a first moving plate (602) and a second moving plate (603) in a sliding mode, the first moving plate (602) is connected with the second moving plate (603) in a rotating mode through a rotating shaft (604), a sliding groove (606) is formed in the lower surface of the supporting plate (4), the upper end of the first moving plate (602) is connected with the upper end of the second moving plate (603) in a rotating mode through the rotating shaft (604), and the side wall of the storage groove (601) is connected with a double-threaded rod (605) in a rotating mode.
4. The coal mine roadway roof fall disaster early warning device according to claim 3, characterized in that: the number of the first moving plate (602) and the second moving plate (603) is multiple, the first moving plate and the second moving plate are arranged in a scissor-type structure, and the double-threaded rod (605) penetrates through the first moving plate (602) and the second moving plate (603) and is in threaded connection with the first moving plate and the second moving plate.
5. The coal mine roadway roof fall disaster early warning device according to claim 1, characterized in that: the power mechanism (7) comprises a supporting table (701) fixedly connected to the side face of the base (1), a motor (702) is mounted on the upper surface of the supporting table (701), the side wall of the moving groove (2) is rotatably connected with a rotating rod (703), the outer wall of the rotating rod (703) is in sliding connection with a moving cylinder (706), a clamping groove (707) is formed in the side face of the moving cylinder (706), two first bevel gears (704) are sleeved on the outer wall of the moving cylinder (706), a second bevel gear (705) matched with the first bevel gears (704) is sleeved on the lower end portion of each of the two threaded rods (501), and one end of the rotating rod (703) penetrates through the base (1) and is fixedly connected with the tail end of an output shaft of the motor (702).
6. The coal mine roadway roof fall disaster early warning device according to claim 5, characterized in that: draw-in groove (707) is passed to rotary rod (703) one end, draw-in groove (707) longitudinal section is the rectangle, rotary rod (703) is because a cylinder and a cuboid combination form, draw-in groove (707) cover is established on the surface of the cuboid of rotary rod (703).
7. The coal mine roadway roof fall disaster early warning device according to claim 5, characterized in that: control mechanism (8) include bracing piece (801) of fixed connection on base (1) upper surface, be provided with flexible groove (805) on the side of bracing piece (801), the inside sliding connection in flexible groove (805) has telescopic link (802), the lateral wall fixedly connected with spring (806) of flexible groove (805), the other end and telescopic link (802) fixed connection of spring (806), the side of telescopic link (802) is rotated and is connected with round bar (803), rotary rod (703) are located and rotate on moving groove (2) part outer wall and are connected with and rotate section of thick bamboo (807), it is close to fixedly connected with restriction piece (808) on the side of moving section of thick bamboo (706) to rotate section of thick bamboo (807), moving section of thick bamboo (706) is provided with restriction groove (809) on being close to the side of rotating section of thick bamboo (807), round bar (803), rotate section of thick bamboo (807) and double-end (605) one end extend connecting plate (3) side part outer wall all overlap and are equipped with and rotate wheel (804), the bottom fixedly connected with electric telescopic handle (810) of moving groove (2), the telescopic link (810) is fixedly connected with threaded rod (811) end fixed connection.
8. The coal mine roadway roof fall disaster early warning device according to claim 7, characterized in that: the rotating rod (703) penetrates through the connecting block (811) and is rotationally connected with the rotating rod (703), and the three rotating wheels (804) are rotationally connected through a belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211239975.0A CN115419793A (en) | 2022-10-11 | 2022-10-11 | Early warning device for roof collapse disaster of coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211239975.0A CN115419793A (en) | 2022-10-11 | 2022-10-11 | Early warning device for roof collapse disaster of coal mine tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115419793A true CN115419793A (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211239975.0A Pending CN115419793A (en) | 2022-10-11 | 2022-10-11 | Early warning device for roof collapse disaster of coal mine tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115419793A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551207A (en) * | 2023-04-19 | 2023-08-08 | 昆山金盟塑料薄膜有限公司 | Plastic film cutting device and cutting method thereof |
-
2022
- 2022-10-11 CN CN202211239975.0A patent/CN115419793A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551207A (en) * | 2023-04-19 | 2023-08-08 | 昆山金盟塑料薄膜有限公司 | Plastic film cutting device and cutting method thereof |
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