CN115655995A

CN115655995A - Monitoring alarm device with prevent dust explosion

Info

Publication number: CN115655995A
Application number: CN202211284928.8A
Authority: CN
Inventors: 丁忠诚; 肖依成; 请求不公布姓名
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-31

Abstract

The invention discloses a monitoring alarm device capable of preventing dust explosion, and belongs to the technical field of monitoring alarm devices. The utility model provides a monitoring alarm device with prevent dust explosion, includes and detects the box, detects box upper end left side and has set firmly the mount pad, detects the box left end and runs through and be equipped with motor A, detects the box right-hand member and runs through and be equipped with the stripper bar, detects intracavity portion left side and is equipped with the sleeve, and annular curve groove A has been seted up to the sleeve inner wall, the inside push rod that is equipped with of sleeve, push rod left side front end are equipped with the ball piece, and the push rod right-hand member has set firmly the piston board, and the filter mantle left side is equipped with the power supply box, and the inside upper end of filter mantle has set firmly motor B. According to the invention, the collection box is arranged, so that when the fan blades rotate, the air pressure in the collection box can be changed, and external dust can be sucked into the collection box through the air inlet pipe due to the change of the air pressure in the collection box, thereby reducing the dust concentration in the air. The invention has reasonable design and can avoid air pollution and resource waste caused by dust scattered in the air.

Description

Monitoring alarm device with prevent dust explosion

Technical Field

The invention relates to the technical field of monitoring alarm devices, in particular to a monitoring alarm device capable of preventing dust explosion.

Background

Can produce a large amount of dusts in places such as machining or grain processing, after the dust concentration of processing space inside reaches certain concentration, the dust explosion easily takes place, and the dust explosion has extremely strong destructive power, not only can make and damage and cause economic loss, but also can threaten staff's personal safety. Patent document with publication number CN212365406U among the prior art provides a monitoring alarm device with dust explosion prevention, and the device can report to the police when dust concentration reaches certain degree through setting up dust concentration sensor, temperature sensor, audible-visual annunciator, LED display screen and remind the staff, can ventilate after the alarm reports to the police through setting up ventilation system and avoid taking place dust explosion. The device has the following problems in the use process: the device can be with dust discharge processing place outside when beginning to ventilate, can not only cause waste and pollution once like this, influences the air quality, and other current dust recovery device can filter the dust and retrieve, nevertheless need retrieve the action with the help of independent actuating mechanism that restarts behind the detection sensor, consequently needs the separately execution action of a plurality of mechanisms, and the integrated level is lower and the reliability is lower.

In view of this, we propose a monitoring alarm device with dust explosion prevention.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a monitoring alarm device for preventing dust explosion so as to solve the problems in the background technology.

2. Technical scheme

A monitoring alarm device capable of preventing dust explosion comprises a detection box, wherein a mounting seat is fixedly arranged on the left side of the upper end of the detection box, a motor A is arranged at the left end of the detection box in a penetrating manner, an extrusion rod is arranged at the right end of the detection box in a penetrating manner, a detection cavity is formed in the detection box in a hollow manner, a sleeve is arranged on the left side of the inner part of the detection cavity, an annular curve groove A is formed in the inner wall of the sleeve, a push rod is arranged in the sleeve, a ball block is arranged at the front end of the left side of the push rod, a piston plate is fixedly arranged at the right end of the push rod, an air outlet is formed in the middle of the upper end of the detection cavity, a sealing plate A is arranged at the upper end of the air outlet, guide rods A are arranged at four corners of the lower end of the sealing plate A, an air inlet plate is fixedly arranged on the right side of the detection cavity, an air inlet is formed at the left end of the air inlet, a sealing plate B is provided with guide rods B, the outer part of the guide rod B is sleeved with a spring A, the lower end of the right side of the detection cavity is provided with a chute A, the inner part of the chute A is connected with a slide block A in a sliding manner, the lower end of the slide block A is fixedly provided with a copper block, the left end of the slide block A is fixedly provided with a spring B, the upper end of the slide block A is fixedly provided with a filter screen, the lower side of the inner wall of the chute A is symmetrically provided with two movable grooves, the inner parts of the movable grooves are provided with conductive blocks, the outer wall of each conductive block is fixedly provided with a spring C, one side of the middle part of the chute A is provided with a contraction groove, the inner parts of the contraction grooves are provided with a clamping block, the rear ends of the clamping blocks are fixedly provided with a spring D, the position of the right side of the detection cavity relative to the filter screen is provided with a notch, the inner part of the notch is rotatably connected with a column wheel through a rotating shaft, the outer wall of the column wheel is provided with an annular curve groove B, the left side of the column wheel is provided with a scraper, the front end of the column wheel is fixedly provided with a gear, the chute B, the detection device is characterized in that a sliding opening is formed in the left side of the front end of the detection cavity, a rack is arranged inside the sliding opening, the lower end of the right side of the rack is rotatably connected with a plurality of ratchets through a rotating shaft, a stop block is fixedly arranged on the outer wall of the left end of each ratchet, a collection box is fixedly arranged at the lower end of the detection box, an air inlet pipe is arranged at the right end of the collection box, a filter cover is arranged inside the collection box, a power supply box is arranged on the left side of the filter cover, a motor B is fixedly arranged at the upper end inside the filter cover, a fan blade is fixedly arranged at the lower end of the motor B, a fixed shaft is fixedly arranged at the lower end of the fan blade, a knocking hammer is arranged at the left end of the fixed shaft in a penetrating mode, an air outlet is formed in the position, opposite to the fan blade, a small bell is fixedly arranged on the left side of the air outlet, and a door plate is hinged to the left end of the collection box.

Preferably, motor A tip and sleeve left end fixed connection, ball piece and annular curve groove A inner wall sliding contact, piston board outer wall and detection box inner wall sliding contact, the piston board is located the gas outlet left side.

Preferably, the size of the sealing plate a is larger than that of the air outlet, the lower end of the sealing plate is in extrusion contact with the upper end of the air outlet, the size of the sealing plate B is larger than that of the air inlet, the initial end of the spring a is fixedly connected with the right side of the guide rod B, the tail end of the spring a is fixedly connected with the right end of the air inlet plate, the right end of the sealing plate B is in extrusion contact with the left end of the air inlet plate, the lower end of the guide rod a penetrates through the upper end of the detection box and is in sliding contact with the upper end of the detection box, and the right end of the guide rod B penetrates through the left end of the air inlet plate and is in sliding contact with the left end of the air inlet plate.

Preferably, spout A is "ten" style of calligraphy structure, slider A makes by insulating material with the detection box, both ends respectively with two conducting block inner walls extrusion contact around the copper billet, the terminal and spout A inner wall left end fixed connection of spring B, the terminal and activity inslot wall fixed connection of spring C, power supply box, two conducting blocks, motor B pass through the wire and connect, conducting block inner wall right-hand member is the slope column structure, the fixture block front end is the slope column structure, fixture block front end and slider A rear end middle part friction contact, the chute has been seted up to the fixture block right-hand member, the extrusion pole tip and chute inner wall extrusion contact.

Preferably, the breach lower extreme runs through in proper order and detects box inner wall lower extreme, collects the box upper end and with collect the inside intercommunication of box, the scraper blade is "the line" style of calligraphy structure, "scraper blade downside left end and spout B sliding connection, scraper blade downside right-hand member and annular curve groove B inner wall sliding contact, scraper blade upside left end and filter screen right-hand member sliding contact.

Preferably, the left side of the rack is connected with the front end of the piston plate, the outer wall of the rack is in sliding contact with the inner wall of the movable opening, the ratchet is in meshing transmission with the gear, and the outer wall of the stop block is in extrusion contact with the lower end of the rack.

Preferably, the filter mantle is of a net structure, the knocking hammer is in sliding contact with the fixed shaft, the left end of the knocking hammer is in movable contact with the outer wall of the bell, the right end of the air inlet pipe is of a horn-shaped structure, the left end of the air inlet pipe penetrates through the right end of the collection box and is communicated with the interior of the collection box, and the door panel is connected with the collection box through a buckle.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the piston plate is arranged to change the air pressure in the detection cavity under the action of the annular curve groove A and the ball block, the filter screen can be driven to move when the dust concentration is high due to the air pressure change, the copper block can be driven by the sliding block to enable the power supply box to automatically supply power to the motor B, the motor B can change the air pressure in the collection box through the fan when rotating, and external dust can be sucked into the collection box through the air inlet pipe due to the air pressure change in the collection box, so that the dust concentration in the air is reduced.

2. According to the invention, the small bell is arranged to drive the striking hammer through the fixed shaft when the fan blades rotate, so that the striking hammer can strike the surface of the small bell repeatedly to make a sound to remind a worker that the concentration of dust in the area is too high, the worker should stop working in time to treat the dust, and unnecessary loss caused by dust explosion is avoided.

3. Can utilize rack, gear, ratchet to make the scraper blade can be along spout B's direction reciprocating motion when the piston plate moves through the scraper blade that sets up, and the scraper blade motion can strike off the dust of filter screen right-hand member, and the dust of scraping off can leak into from the breach and collect in the box, avoids the dust accumulation to influence the air permeability of filter screen to influence the device to the detection effect of dust concentration.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a part of the detection chamber according to the present invention;

FIG. 3 is a schematic view of the sleeve portion of the present invention;

FIG. 4 is a schematic view of the structure of the air intake part of the present invention;

FIG. 5 is an enlarged view of part A of the present invention;

FIG. 6 is a schematic view of a part of the column wheel structure of the present invention;

FIG. 7 is a schematic view of the structure of the notch portion of the present invention;

FIG. 8 is a schematic view of a ratchet portion of the present invention;

FIG. 9 is a schematic view of a portion of the motor B of the present invention;

FIG. 10 is a schematic view of the structure of the bell part of the invention;

the reference numbers in the figures illustrate: 1. a detection cartridge; 2. a mounting seat; 3. a motor A; 4. an extrusion stem; 5. a detection chamber; 6. a sleeve; 7. an annular curved groove A; 8. a push rod; 9. a ball block; 10. a piston plate; 11. an air outlet; 12. a sealing plate A; 13. a guide rod A; 14. an air intake plate; 15. an air inlet; 16. a sealing plate B; 17. A guide rod B; 18. a spring A; 19. a chute A; 20. a slide block A; 21. a copper block; 22. a spring B; 23. Filtering with a screen; 24. a movable groove; 25. a conductive block; 26. a spring C; 27. a contraction groove; 28. a clamping block; 29. A spring D; 30. a notch; 31. a column wheel; 32. an annular curved groove B; 33. a squeegee; 34. a gear; 35. A chute B; 36. a sliding port; 37. a rack; 38. a ratchet; 39. a stopper; 40. a collection box; 41. an air inlet pipe; 42. a filter housing; 43. a power supply box; 44. a motor B; 45. a fan blade; 46. a fixed shaft; 47. knocking hammers; 48. an air outlet; 49. a bell; 50. a door panel; 51. a chute.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to the drawings, the present invention provides a technical solution:

a monitoring alarm device capable of preventing dust explosion comprises a detection box 1, wherein a mounting seat 2 is fixedly arranged on the left side of the upper end of the detection box 1, a motor A3 is arranged at the left end of the detection box 1 in a penetrating manner, an extrusion rod 4 is arranged at the right end of the detection box 1 in a penetrating manner, a detection cavity 5 is formed in the detection box 1 in a hollow manner, a sleeve 6 is arranged on the left side of the inner part of the detection cavity 5, an annular curve groove A7 is formed in the inner wall of the sleeve 6, a push rod 8 is arranged in the sleeve 6, a ball block 9 is arranged at the front end of the left side of the push rod 8, a piston plate 10 is fixedly arranged at the right end of the push rod 8, an air outlet 11 is formed in the middle of the upper end of the detection cavity 5, a sealing plate A12 is arranged at the upper end of the air outlet 11, guide rods A13 are arranged at four corners of the lower end of the sealing plate A12, an air inlet plate 14 is fixedly arranged at the right side of the detection cavity 5, an air inlet 15 is provided with an air inlet 15, a sealing plate B16 is arranged at the left end of the air inlet 15, guide plate B17 is arranged at four corners of the sealing plate B16, a guide rod B17, a spring A18 is sleeved on the outer side of the guide rod B17, the lower end of the right side of the detection cavity 5 is provided with a chute A19, the chute A19 is connected with a slide block A20 in a sliding way, the lower end of the slide block A20 is fixedly provided with a copper block 21, the left end of the slide block A20 is fixedly provided with a spring B22, the upper end of the slide block A20 is fixedly provided with a filter screen 23, the lower side of the inner wall of the chute A19 is symmetrically provided with two movable grooves 24, the movable grooves 24 are internally provided with conductive blocks 25, the outer wall of the conductive block 25 is fixedly provided with a spring C26, one side of the middle part of the chute A19 is provided with a contraction groove 27, the inner part of the contraction groove 27 is provided with a clamping block 28, the rear end of the clamping block 28 is fixedly provided with a spring D29, the position of the right side of the detection cavity 5, which is opposite to the filter screen 23 is provided with a notch 30, the inner part of the notch 30 is rotatably connected with a column wheel 31 through a rotating shaft, the outer wall of the column wheel 31 is provided with an annular curve groove B32, the left side of the column wheel 31 is provided with a scraping plate 33, the front end of the column wheel 31 is fixedly provided with a gear 34, the left end of the notch 30 is provided with a chute B35, the left end of the inner wall of the notch 30, the chute B35, the left side of the detection cavity is provided with a sliding opening 36, the rack 37 is arranged in the sliding port 36, the lower end of the right side of the rack 37 is rotatably connected with a plurality of ratchets 38 through a rotating shaft, the outer wall of the left end of each ratchet 38 is fixedly provided with a stop 39, the lower end of the detection box 1 is fixedly provided with a collection box 40, the right end of the collection box 40 is provided with an air inlet pipe 41, the interior of the collection box 40 is provided with a filter cover 42, the left side of the filter cover 42 is provided with a power supply box 43, the upper end of the interior of the filter cover 42 is fixedly provided with a motor B44, the lower end of the motor B44 is fixedly provided with a fan blade 45, the lower end of the fan blade 45 is fixedly provided with a fixed shaft 46, the left end of the fixed shaft 46 is provided with a knocking hammer 47 in a penetrating manner, the lower end of the collection box 40 is provided with an air outlet 48 corresponding to the fan blade 45, the left side of the air outlet 48 is fixedly provided with a bell 49, and the left end of the collection box 40 is hinged with a door panel 50. The motor A3 is connected with an external control mechanism.

Specifically, the end of the motor A3 is fixedly connected with the left end of the sleeve 6, the ball block 9 is in sliding contact with the inner wall of the annular curve groove A7, the outer wall of the piston plate 10 is in sliding contact with the inner wall of the detection box 1, and the piston plate 10 is located on the left side of the air outlet 11. The motor A3 rotates slowly to drive the sleeve 6 to rotate, and the sleeve 6 can enable the push rod 8 to drive the piston plate 10 to do reciprocating motion in the detection cavity 5 under the action of the annular curve groove A7 and the ball block 9.

Furthermore, the size of the sealing plate A12 is larger than that of the air outlet 11, the lower end of the sealing plate is in extrusion contact with the upper end of the air outlet 11, the size of the sealing plate B16 is larger than that of the air inlet 15, the initial end of the spring A18 is fixedly connected with the right side of the guide rod B17, the tail end of the spring A18 is fixedly connected with the right end of the air inlet plate 14, the right end of the sealing plate B16 is in extrusion contact with the left end of the air inlet plate 14, the lower end of the guide rod A13 penetrates through the upper end of the detection box 1 and is in sliding contact with the upper end of the detection box, and the right end of the guide rod B17 penetrates through the left end of the air inlet plate 14 and is in sliding contact with the left end of the air inlet plate. When the air pressure detection device moves rightwards, the sealing plate B16 can be driven by the guide rod A13 under the action of the spring A18 to enable the sealing plate B16 to block the air inlet 15, air on the left side inside the detection cavity 5 can extrude the sealing plate A12 under the extrusion of the piston plate 10, the sealing plate A12 can open the air outlet 11 under the action of the guide rod A13, when the push rod 8 drives the piston plate 10 to move leftwards, the piston plate 10 drives air inside the detection cavity 5, meanwhile, the sealing plate A12 can descend under the action of the guide rod A13 to block the air outlet 11, when the piston plate 10 moves, the sealing plate B16 can be pulled due to the change of air pressure on the left side of the detection cavity 5, and the sealing plate B16 moves leftwards under the action of the guide rod B17 to open the air inlet 15.

Still further, the sliding groove A19 is of a cross-shaped structure, the sliding block A20 and the detection box 1 are made of insulating materials, the front end and the rear end of the copper block 21 are respectively in extrusion contact with the inner walls of the two conductive blocks 25, the tail end of the spring B22 is fixedly connected with the left end of the inner wall of the sliding groove A19, the tail end of the spring C26 is fixedly connected with the inner wall of the movable groove 24, the power box 43, the two conductive blocks 25 and the motor B44 are connected through conducting wires, the right end of the inner wall of the conductive block 25 is of an inclined structure, the front end of the clamping block 28 is in friction contact with the middle of the rear end of the sliding block A20, the right end of the clamping block 28 is provided with a chute 51, and the end of the extrusion rod 4 is in extrusion contact with the inner wall of the chute 51. When the copper block 21 contacts the conductive block 25, the power box 43 can supply power to the motor B44 through the conducting wire, and the motor B44 can rotate to drive the fan blade 45 to rotate.

Further, the lower extreme of breach 30 runs through detection box 1 inner wall lower extreme in proper order, collects the box 40 upper end and with collect the inside intercommunication of box 40, scraper blade 33 is "the line" style of calligraphy structure, scraper blade 33 downside left end and spout B35 sliding connection, scraper blade 33 downside right-hand member and annular curve groove B32 inner wall sliding contact, scraper blade 33 upside left end and filter screen 23 right-hand member sliding contact. The scraper 33 moves to scrape off dust at the right end of the filter net 23, and the scraped dust leaks into the collection box 40 through the notch 30.

It is worth to be noted that the left side of the rack 37 is connected with the front end of the piston plate 10, the outer wall of the rack 37 is in sliding contact with the inner wall of the movable opening, the ratchet 38 is in meshing transmission with the gear 34, and the outer wall of the stop 39 is in pressing contact with the lower end of the rack 37. The rack 37 moving to the right can drive the gear 34 through the ratchet 38, the gear 34 drives the column wheel 31 to rotate, and the rack 37 moving to the left can avoid being meshed with the gear 34 under the action of the ratchet 38.

It should be noted that the filter cover 42 is a net structure, the hammer 47 is in sliding contact with the fixed shaft 46, the left end of the hammer 47 is in movable contact with the outer wall of the bell 49, the right end of the air inlet pipe 41 is in a horn structure, the left end of the air inlet pipe 41 penetrates through the right end of the collecting box 40 and is communicated with the inside of the collecting box, and the door panel 50 is connected with the collecting box 40 through a buckle. The blades 45 can rotate to drive the striking hammer 47 to collide with the outer wall of the bell 49, and the striking hammer 47 is in sliding contact with the fixed shaft 46, so that the blades 45 can continue to rotate after the striking hammer 47 collides with the bell 49, the striking hammer 47 can extend outwards again after being separated from the bell 49 under the action of centrifugal force, and the striking hammer 47 can still collide with the bell 49 when the blades 45 rotate for the second circle.

When the device is required to work, the device can be installed at a working place through the installation seat 2, the motor A3 is connected with an external control mechanism, the motor A3 rotates slowly to drive the sleeve 6 to rotate, the sleeve 6 can drive the piston plate 10 to reciprocate in the detection cavity 5 under the action of the annular curved groove A7 and the ball block 9, when the piston plate 10 moves rightwards, the sealing plate B16 can be driven by the guide rod A13 under the action of the spring A18 to enable the sealing plate B16 to block the air inlet 15, air on the left side in the detection cavity 5 can extrude the sealing plate A12 under the extrusion of the piston plate 10, the sealing plate A12 can open the air outlet 11 under the action of the guide rod A13, the rack 37 can be driven when the piston plate 10 moves rightwards, the rack 37 can drive the gear 34 through the ratchet 38, the gear 34 drives the column wheel 31 to rotate, the column wheel 31 can drive the scraper 33 to move through the annular curved groove B32 and the sliding groove B35, when the push rod 8 drives the piston plate 10 to move leftwards, the piston plate 10 drives air in the detection cavity 5, and simultaneously the sealing plate A12 can descend under the action of the guide rod A13 to block the air outlet 11 under the action of gravity, at the moment, when the piston plate 10 moves, because the air pressure at the left side of the detection cavity 5 changes, the sealing plate B16 can be pulled to move leftwards under the action of the guide rod B17 to open the air inlet 15, then air can enter the air inlet 15, the air can drive dust in the air to flow, the dust can flow to the right end of the filter screen 23, and the blocked filter screen 23 can move leftwards under the action of the slider A20 when the air pressure in the detection cavity 5 changes, when the sliding block A20 moves to the left end of the sliding groove A19, the copper block 21 presses the conductive block 25, when the copper block 21 is in contact with the conductive block 25, the power supply box 43 can supply power to the motor B44 through a wire, the motor B44 can rotate to drive the fan blades 45 to rotate, the air pressure inside the collecting box 40 can be changed through the rotation of the fan blades 45, external dust can be sucked into the collecting box 40 through the air inlet pipe after the air pressure inside the collecting box 40 is changed, the dust can be prevented from flowing out of the air outlet 48 through the arranged filter cover 42, when the dust inside the collecting box 40 is excessive, the collected dust and the internal dust can be taken out by opening the door panel 50, the fan blades 45 can rotate to drive the striking hammer 47 to collide with the outer wall of the bell 49, the striking hammer 47 is in sliding contact with the fixed shaft 46, the fan blades 45 can continue to rotate after the striking hammer 47 collides with the bell 49, the striking hammer 47 is separated from the bell 49 under the action of centrifugal force, the striking hammer 47 can extend out again, the striking hammer can continue to the bell 49, the pressing rod 4 can be pushed to the chute 27, and the pressing device can be restored to work under the original position, and the effect of the pressing of the chute 22 can be achieved.

Therefore, the piston plate is arranged, so that the air pressure in the detection cavity can be changed under the action of the annular curve groove A and the ball block, the filter screen can be driven to move when the dust concentration is high due to the air pressure change, the copper block can be driven by the sliding block to enable the power supply box to automatically supply power to the motor B due to the movement of the filter screen, the air pressure in the collection box can be changed by the rotation of the motor B through the fan, external dust can be sucked into the collection box through the air inlet pipe due to the air pressure change in the collection box, the dust concentration in the air can be effectively reduced, explosion can be prevented and prevented, meanwhile, the dust in the air is collected, and air pollution and resource waste caused by the dust scattered in the air are avoided.

The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a monitoring alarm device with prevent dust explosion, includes detection box (1), its characterized in that: the detection device is characterized in that a mounting seat (2) is fixedly arranged on the left side of the upper end of a detection box (1), a motor A (3) is arranged at the left end of the detection box (1) in a penetrating manner, an extrusion rod (4) is arranged at the right end of the detection box (1) in a penetrating manner, a detection cavity (5) is formed by the hollow interior of the detection box (1), a sleeve (6) is arranged on the left side of the interior of the detection cavity (5), an annular curve groove A (7) is formed in the inner wall of the sleeve (6), a push rod (8) is arranged in the sleeve (6), a ball block (9) is arranged at the front end of the left side of the push rod (8), a piston plate (10) is fixedly arranged at the right end of the push rod (8), an air outlet (11) is formed in the middle of the upper end of the detection cavity (5), a sealing plate A (12) is arranged at the upper end of the air outlet (11), guide rod A (13) is arranged at four corners of the lower end of the sealing plate A (12), an air inlet plate (14) is fixedly arranged on the right side of the detection cavity (5), an air inlet plate (14) is formed in a fixedly arranged, an air inlet (15) is formed in the left end of the air inlet plate (15), a sealing plate B (16) is arranged at the left end of the sealing plate B (16), a sealing plate B (17), a guide rod B (17) is arranged at four corners of the guide plate B (17), a guide rod A) is arranged at the outer side of the guide rod A17), a detection chute (17) is arranged on the outer side of the detection chute (17), a detection chute (19) is sleeved outside of the detection chute (17), and a detection chute (19) is arranged at the guide rod A) and a detection chute (19), the device is characterized in that a sliding block A (20) is connected to the inner portion of the sliding groove A (19) in a sliding mode, a copper block (21) is fixedly arranged at the lower end of the sliding block A (20), a spring B (22) is fixedly arranged at the left end of the sliding block A (20), a filter screen (23) is fixedly arranged at the upper end of the sliding block A (20), two movable grooves (24) are symmetrically formed in the lower side of the inner wall of the sliding groove A (19), a conductive block (25) is arranged in each movable groove (24), a spring C (26) is fixedly arranged on the outer wall of each conductive block (25), a contraction groove (27) is formed in one side of the middle of the sliding groove A (19), a clamping block (28) is arranged in each contraction groove (27), a spring D (29) is fixedly arranged at the rear end of each clamping block (28), a notch (30) is formed in the position, relative to the filter screen (23), of the right side of the detection cavity (5), a column wheel (31) is rotatably connected to the inner portion through a rotating shaft, an annular column wheel B (32) is formed in the outer wall of the column wheel (31), a curved groove B (32) is formed in the left side of the column wheel (31), a scraping plate (33) is arranged at the left side of the front end of the sliding groove A, a sliding block (36) is fixedly arranged at the front end of the sliding groove A, a sliding groove (36) is formed in the sliding groove (36), a sliding groove (35), a sliding groove (36) and a sliding groove (36) is formed in the sliding groove (36) at the inner wall of the sliding groove (36), the lower end of the right side of the rack (37) is rotatably connected with a plurality of ratchets (38) through a rotating shaft, the outer wall of the left end of each ratchet (38) is fixedly provided with a stop block (39), the lower end of the detection box (1) is fixedly provided with a collection box (40), the right end of the collection box (40) is provided with an air inlet pipe (41), a filter cover (42) is arranged inside the collection box (40), the left side of the filter cover (42) is provided with a power supply box (43), the upper end inside the filter cover (42) is fixedly provided with a motor B (44), the lower end of the motor B (44) is fixedly provided with a fan blade (45), the lower end of the fan blade (45) is fixedly provided with a fixed shaft (46), the left end of the fixed shaft (46) is provided with a striking hammer (47) in a penetrating manner, an air outlet (48) is formed in the position of the lower end of the collection box (40) relative to the fan blade (45), a bell (49) is fixedly formed in the left side of the air outlet (48), and the left end of the collection box (40) is hinged with a door plate (50).

2. A monitoring alarm device with dust explosion prevention function according to claim 1, wherein: motor A (3) tip and sleeve (6) left end fixed connection, ball piece (9) and annular curve groove A (7) inner wall sliding contact, piston board (10) outer wall and detection box (1) inner wall sliding contact, piston board (10) are located gas outlet (11) left side.

3. A monitoring alarm device with dust explosion prevention function according to claim 1, wherein: the size of sealing plate A (12) is greater than the size of gas outlet (11), sealing plate lower extreme and gas outlet (11) upper end extrusion contact, the size of sealing plate B (16) is greater than the size of air inlet (15), spring A (18) initial end and guide arm B (17) right side fixed connection, spring A (18) end and air inlet plate (14) right-hand member fixed connection, sealing plate B (16) right-hand member and air inlet plate (14) left end extrusion contact, guide arm A (13) lower extreme runs through detects box (1) upper end and rather than sliding contact, guide arm B (17) right-hand member runs through air inlet plate (14) left end and rather than sliding contact.

4. A monitoring alarm device with dust explosion prevention function according to claim 1, wherein: spout A (19) are "ten" style of calligraphy structure, slider A (20) are made by insulating material with detection box (1), both ends are respectively with two conducting block (25) inner wall extrusion contact around copper billet (21), spring B (22) end and spout A (19) inner wall left end fixed connection, spring C (26) end and activity groove (24) inner wall fixed connection, power supply box (43), two conducting block (25), motor B (44) pass through the wire and are connected, conducting block (25) inner wall right-hand member is the slope column structure, fixture block (28) front end and slider A (20) rear end middle part friction contact, chute (51) have been seted up to fixture block (28) right-hand member, extrusion pole (4) tip and chute (51) inner wall extrusion contact.

5. A monitoring alarm device with dust explosion prevention function according to claim 1, wherein: breach (30) lower extreme runs through in proper order and detects box (1) inner wall lower extreme, collects box (40) upper end and with collect the inside intercommunication of box (40), scraper blade (33) are the line of the device of the character style of calligraphy structure of "linking up, scraper blade (33) downside left end and spout B (35) sliding connection, scraper blade (33) downside right-hand member and annular curve groove B (32) inner wall sliding contact, scraper blade (33) upside left end and filter screen (23) right-hand member sliding contact.

6. A monitoring alarm device with dust explosion prevention function according to claim 1, wherein: the left side of the rack (37) is connected with the front end of the piston plate (10), the outer wall of the rack (37) is in sliding contact with the inner wall of the movable opening, the ratchet (38) is in meshing transmission with the gear (34), and the outer wall of the stop block (39) is in extrusion contact with the lower end of the rack (37).

7. A monitoring alarm device with dust explosion prevention function according to claim 1, wherein: the filter cover (42) is of a net structure, the knocking hammer (47) is in sliding contact with the fixed shaft (46), the left end of the knocking hammer (47) is in movable contact with the outer wall of the bell (49), the right end of the air inlet pipe (41) is of a horn-shaped structure, the left end of the air inlet pipe (41) penetrates through the right end of the collection box (40) and is communicated with the interior of the collection box, and the door panel (50) is connected with the collection box (40) through a hasp.