CN217688085U - Dust collection device - Google Patents

Abstract

The utility model discloses a dust collection device, including dust collecting mechanism, dust absorption mechanism, dust collecting mechanism's structure includes base, dust absorption pipe, wind direction cover, set up the dust exhaust mouth on the back lower lateral wall of dust absorption pipe, the bottom of dust absorption pipe is connected through pillar and base level rotation, the fixed waterproof screen of front end of dust absorption pipe, the fixed dust cloth that strains of rear end, set up the exhaust hole on the lateral wall of wind direction cover, the front end position of wind direction cover is connected with the dust absorption pipe rotation, be fixed with the sample ring on the inside wall of wind direction cover, and the inner ring lateral wall of sample ring pastes with the outside wall of dust absorption pipe, the through-hole of eight even intercommunications that set up on sample ring and the wind direction cover is the sampling hole, respectively inserts a sampling bottle in every sampling hole; the dust collection mechanism is arranged in the dust collection pipe and the wind direction cover and is connected with the sampling ring through the linkage mechanism. The utility model discloses the dust is directly collected to convenient timesharing, and inconvenient collection dust when avoiding the leeward.

Description

Dust collection device

Technical Field

The utility model relates to a dust collection system technical field, concretely relates to dust collection system.

Background

Environmental monitoring refers to the activity of monitoring and measuring environmental quality conditions by an environmental monitoring mechanism. The environmental monitoring is to monitor and measure the index reflecting the environmental quality to determine the environmental pollution condition and the environmental quality.

Air quality detection is an item of environmental detection, wherein the dust content and the type in the air are indexes, and the Chinese patent discloses an energy-saving dust collecting device for environmental detection (No. CN 113654961A), and the patent technology can automatically carry out atmospheric collection in different time periods. However, firstly, the aperture of the collecting pipe is small, the air suction area is small, and the detection result is influenced by the space size and the wind direction; secondly, the time interval of the time interval acquisition is greatly influenced by the weather temperature, and no reference value is compared; thirdly, the air bag is used for directly collecting the atmosphere to detect the dust content, workers are also required to classify the air and the dust, and the workload of the users is increased. Accordingly, those skilled in the art have provided a dust collecting device to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a dust collecting device, which comprises a dust collecting mechanism and a dust collecting mechanism;

the dust collecting mechanism structurally comprises a base, a dust collecting pipe and a wind direction cover, wherein a through hole formed in the rear lower side wall of the dust collecting pipe is a dust exhaust port, a support is fixed at the bottom end of the dust collecting pipe, the bottom end of the support is horizontally and rotatably connected with the base, a waterproof net is fixed at the front end of a pipe hole of the dust collecting pipe, dust filtering cloth is fixed at the rear end of the pipe hole of the dust collecting pipe, a plurality of through holes formed in the front side wall of the wind direction cover are exhaust holes, the front end part of the wind direction cover is sleeved on the dust collecting pipe and rotatably connected with the dust collecting pipe, a sampling ring is fixed on the inner side wall of the wind direction cover, the inner ring side wall of the sampling ring is attached to the outer side wall of the dust collecting pipe, eight uniformly-communicated through holes formed in the sampling ring and the wind direction cover are sampling holes, and a sampling bottle is inserted into each sampling hole;

the dust collection mechanism is arranged in the dust collection pipe and the wind direction cover and is connected with the sampling ring through the linkage mechanism.

Preferably, the following components: the dust collection mechanism structurally comprises a mounting plate and a motor, wherein the mounting plate is arranged in the wind direction cover and is fixedly connected with the dust collection pipe through a connecting rod; the motor is fixed on the rear side wall of the mounting plate, a rotating shaft is fixed at the front end of a rotor of the motor, a central through hole of the dust filtering cloth penetrates through the front end part of the rotating shaft, a scraping rod is fixed on the rotating shaft at the front side of the dust filtering cloth, a fan blade is fixed on the rotating shaft at the rear side of the dust filtering cloth, and the scraping rod is attached to the inner side wall of the dust absorption pipe and the front side wall of the dust filtering cloth.

Preferably: the linkage mechanism structurally comprises a first gear, a second gear, a first conical gear, a ring gear and a time linkage piece, wherein the ring gear is fixed on the rear side wall of the sampling ring; the first gear is fixed on the rotating shaft; the second gear is coaxial with the first conical gear and is arranged on the mounting plate, the second gear is connected with the first gear through a time linkage, and the first conical gear is meshed with the annular gear.

Preferably: the structure of the time linkage piece comprises a rotating rod, a rack, a clock, a fourth gear and a push plate, wherein a first sliding block is arranged in a sliding hole in the rotating rod, the lower end of the first sliding block is connected with the rotating rod through a first spring, a push block is fixed at the left end of the first sliding block, the rotating rod is arranged on the front side of the mounting plate, the top end of the rotating rod is rotatably connected with the mounting plate through a pin shaft with a torsion spring, and the bottom end of the rotating rod is connected with the mounting plate through a first positioning piece; the rack is arranged in a right gap of the rotating rod and is fixedly connected with the first sliding block; the clock is arranged in the through hole of the mounting plate, and a third gear is fixed at the front end of the wheel shaft of the hour wheel; the fourth gear is arranged on the front side wall of the mounting plate and is meshed with the third gear; the left end position of push pedal is the pipe structure, the left end of push pedal is connected through No. two setting elements.

Preferably: the first positioning piece structurally comprises a fixing block, a positioning block and a moving block, the fixing block is of an L-shaped structure and is fixed on the front side wall of the mounting plate, and the right lower end of the rotating rod is inserted into an included angle of the fixing block; the left lower end of the positioning block is an inclined plane and is arranged in a through hole of the fixing block, the left end part of the positioning block is inserted into a socket of the rotating rod, and the right end of the positioning block is fixedly connected with the moving block; the moving block is of an L-shaped structure, the upper left end of the moving block is an inclined plane, and the moving block covers the fixed block and is connected with the fixed block through a second spring.

Preferably, the second positioning piece structurally comprises a positioning shaft, a positioning rod and a guide sleeve, wherein a circular ratchet groove is formed in the outer side wall of the positioning shaft, the rear end of the positioning shaft is fixed at the central part of the fourth gear, and the front end of the positioning shaft is inserted into a pipe hole of the push plate; the guide sleeve is sleeved on the positioning rod and fixed on the front side wall of the push plate; the left end of the positioning rod penetrates through the pipe wall of the push plate and then is meshed with the ratchet groove, a limiting plate is fixed on the positioning rod, and the right end of the limiting plate is connected with the left end of the guide sleeve through a third spring.

Preferably: the bottle mouth of the sampling bottle is sleeved with a tubular bottle cap in a threaded manner, and a sealing piece is arranged in the bottle cap.

Preferably: the sealing piece structurally comprises a fixed shaft and a bottle stopper, wherein two ends of the fixed shaft are fixedly provided with a second sliding block, each second sliding block is arranged in a sliding chute on the inner side wall of the bottle cap, and the bottom end of each second sliding block is connected with the bottom end of the sliding chute through a fourth spring; the bottle stopper is sleeved on the fixed shaft, the through hole in the upper portion is provided with the abutting column, the hole in the front side wall is provided with the positioning column, the rear end of the positioning column is inserted into the hole in the fixed shaft, the front end of the abutting column is fixedly connected with the front end of the positioning column through the connecting plate, and the rear side wall of the connecting plate is connected with the front side wall of the bottle stopper through the fifth spring.

Preferably: a storage battery is arranged in a cavity of the base, a control switch is arranged in the side wall of the base, and the storage battery, the control switch and the motor form a loop.

The utility model discloses a technological effect and advantage:

1. the utility model is provided with the dust collecting mechanism, the wind direction cover is pushed by wind to enable the supporting column to horizontally rotate, the front end surface of the dust collecting pipe faces the wind, the air directly flows into the dust collecting pipe, and dust is directly filtered through the dust filtering cloth, so that the dust in the air is prevented from being difficult to collect when the wind is leeward;

the utility model is provided with a dust absorption mechanism, the motor drives the scraping rod and the fan blade to rotate, and the air in the dust absorption pipe passes through the dust filtering cloth by the fan blade to enter the wind direction cover, so that the dust filtering cloth can filter out dust conveniently; the dust filter cloth and dust adhered to the inner wall of the dust suction pipe are scraped off by the scraping rod, so that the dust is conveniently and intensively discharged into the sampling bottle from the dust discharge port;

the sampling bottle is used for collecting dust, the wind direction cover plays a role in guiding wind, when wind blows on the outer surface wall or the inner surface wall of the wind direction cover, the wind direction cover is pushed, the support column horizontally rotates on the base, the front end opening of the dust collection pipe faces the wind direction, and air is directly blown into the dust collection pipe; when the air passes through the dust absorption pipe, dust in the air is filtered by the dust filtering cloth, and the dust in the dust absorption pipe falls into the sampling bottle below from the dust discharge port, so that the dust can be directly collected, and the dust is difficult to collect when the lee is avoided.

2. The utility model is provided with a time linkage mechanism, the clock drives the push plate to rotate clockwise, so that the push plate regularly pushes the rotating rod to rotate rightwards, the rack drives the first gear to drive the second gear to rotate, the first bevel gear drives the ring gear to rotate, and after the sampling ring rotates forty-five degrees, the next sampling bottle is aligned with the dust discharge port; the dust in the air of eight periods in a day can be sampled respectively, the researcher can study the atmospheric environment conveniently, and the degree of automation is high.

Drawings

Fig. 1 is a perspective view of a dust collecting device for environmental detection provided in an embodiment of the present application;

fig. 2 is a right-side sectional view of an upper portion of a dust collecting device for environmental detection according to an embodiment of the present application;

FIG. 3 is a schematic view of the structure of FIG. 2 with the wind direction cover removed;

fig. 4 is a front view of a mounting plate in the dust collecting device for environmental detection according to the embodiment of the present application;

fig. 5 is a schematic structural diagram of a second positioning element in the dust collection device for environmental detection provided in the embodiment of the present application;

FIG. 6 is a sectional view of a bottle cap in a dust collecting device for environmental detection according to an embodiment of the present application;

fig. 7 is a cross-sectional view of a bottle plug in a dust collecting device for environmental testing according to an embodiment of the present application.

In the figure: the dust collection device comprises a dust collection pipe 10, a support post 11, a base 12, a waterproof net 13, dust filter cloth 14, a dust discharge port 15, a wind direction cover 16, a sampling ring 17, a sampling bottle 18, a bottle cap 19, a mounting plate 20, a motor 21, a rotating shaft 22, a fan blade 23, a scraping rod 24, an exhaust hole 25, a first gear 26, a second gear 27, a first bevel gear 28, a ring gear 29, a rotating rod 30, a rack 31, a first spring 32, a fixing block 33, a moving block 34, a positioning block 35, a second spring 36, a clock 37, a third gear 38, a fourth gear 39, a push plate 40, a positioning shaft 41, a guide sleeve 42, a positioning rod 43, a limiting plate 44, a third spring 45, a connecting rod 46, a bottle stopper 47, a fixing shaft 48, a second slider 49, a fourth spring 50, a support column 51, a positioning column 52, a connecting plate 53, a fifth spring 54, a push block 55 and a ratchet groove 56.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Example 1

Referring to fig. 1 to 7, in the present embodiment, a dust collecting device is provided, including a dust collecting mechanism, the structure of the dust collecting mechanism includes a base 12, a dust collecting pipe 10, and a wind direction cover 16, a through hole formed on a rear lower side wall of the dust collecting pipe 10 is a dust discharge port 15, a pillar 11 is fixed at a bottom end of the dust collecting pipe 10, a bottom end of the pillar 11 is horizontally and rotatably connected with the base 12, a waterproof net 13 is fixed at a front end of a pipe hole of the dust collecting pipe 10, a dust filtering cloth 14 is fixed at a rear end of the pipe hole of the dust collecting pipe 10, the waterproof net 13 prevents rainwater from entering the dust collecting pipe 10, and the dust filtering cloth 14 filters dust; the dust collection device comprises a wind direction cover 16, a dust collection pipe 10, a sampling ring 17, a sampling bottle 18 and a dust collection pipe, wherein a plurality of through holes 25 are formed in the side wall of the front part of the wind direction cover 16, the front end part of the wind direction cover 16 is sleeved on the dust collection pipe 10 and is rotatably connected with the dust collection pipe 10, the inner side wall of the wind direction cover 16 is fixedly provided with the sampling ring 17, the inner side wall of the sampling ring 17 is attached to the outer side wall of the dust collection pipe 10, the eight communicated through holes uniformly formed in the sampling ring 17 and the wind direction cover 16 are sampling holes, one sampling bottle 18 is inserted into each sampling hole, the sampling bottle 18 is used for collecting dust, and the wind direction cover 16 plays a role in guiding wind;

when wind blows on the outer surface wall or the inner surface wall of the wind direction cover 16, the wind direction cover 16 is pushed, the support column 11 horizontally rotates on the base 12, the front end opening of the dust collection pipe 10 faces the wind direction, and air directly blows into the dust collection pipe 10; when air passes through the dust suction pipe 10, the dust filtering cloth 14 filters dust in the air, and the dust in the dust suction pipe 10 falls into the sampling bottle 18 below from the dust exhaust port 15, so that the dust can be directly collected, and the dust is prevented from being difficult to collect in the lee.

The device is characterized by further comprising a dust collection mechanism, wherein the dust collection mechanism structurally comprises a mounting plate 20, a motor 21, a storage battery and a control switch, the mounting plate 20 is arranged in the wind direction cover 16 and is fixedly connected with the dust collection pipe 10 through a connecting rod 46; the motor 21 is fixed on the rear side wall of the mounting plate 20, a rotating shaft 22 is fixed at the front end of a rotor of the motor 21 and used for driving the rotating shaft 22 to rotate, the front end part of the rotating shaft 22 penetrates through a central through hole of the dust filtering cloth 14, a scraping rod 24 is fixed on the rotating shaft 22 at the front side of the dust filtering cloth 14, a fan blade 23 is fixed on the rotating shaft at the rear side, the scraping rod 24 is attached to the inner side wall of the dust collection pipe 10 and the front side wall of the dust filtering cloth 14 and used for scraping dust, and the fan blade 23 rolls air rightwards; the storage battery is arranged in a cavity of the base 12, and the control switch is arranged in a side wall of the base 12;

when the electric vehicle works, the control switch is pressed down to enable the storage battery to be electrically conducted with the motor 21; the motor 21 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the fan blade 23 and the scraping rod 24 to rotate; the fan blade 23 rolls the air backwards, and draws the air in the dust absorption pipe 10 backwards, so that the air between the mounting plate 20 and the dust absorption pipe 10 is discharged from the exhaust hole 25; the scraping bar 24 scrapes off the dust adhered to the inner wall of the dust filter cloth 14 and the suction pipe 10, and sweeps it to the dust discharge port 15 to be discharged.

The sampling device further comprises a linkage mechanism, the linkage mechanism structurally comprises a first gear 26, a second gear 27, a first conical gear 28, a ring gear 29 and a time linkage piece, and the ring gear 29 is fixed on the rear side wall of the sampling ring 17; the first gear 26 is fixed on the rotating shaft 22; the second gear 27 and the first conical gear 28 are coaxial and are arranged on the mounting plate 20, the second gear 27 is connected with the first gear 26 through a time linkage, and the first conical gear 28 is meshed with the ring gear 29; the structure of the time linkage piece comprises a rotating rod 30, a rack 31, a clock 37, a fourth gear 39 and a push plate 40, wherein a first sliding block is arranged in a sliding hole in the rotating rod 30, the lower end of the first sliding block is connected with the rotating rod 30 through a first spring 32, a push block 55 is fixed at the left end of the first sliding block, the rotating rod 30 is arranged on the front side of the mounting plate 20, the top end of the rotating rod is rotatably connected with the mounting plate 20 through a pin shaft with a torsion spring, and the bottom end of the rotating rod 30 is connected with the mounting plate 20 through a first positioning piece; the rack 31 is arranged in a right gap of the rotating rod 30 and is fixedly connected with the first sliding block; the clock 37 is arranged in the through hole of the mounting plate 20, and a third gear 38 is fixed at the front end of the wheel shaft of the hour wheel; the fourth gear 39 is arranged on the front side wall of the mounting plate 20 and is meshed with the third gear 38; the left end part of the push plate 40 is of a circular tube structure, and the left ends of the push plate 40 are connected through a second positioning piece; the first positioning piece structurally comprises a fixed block 33, a positioning block 35 and a moving block 34, wherein the fixed block 33 is of an L-shaped structure and is fixed on the front side wall of the mounting plate 20, and the right lower end of the rotating rod 30 is inserted into an included angle of the fixed block 33; the left lower end of the positioning block 35 is an inclined plane and is arranged in a through hole of the fixing block 33, the left end part of the positioning block 35 is inserted into a socket of the rotating rod 30, and the right end of the positioning block is fixedly connected with the moving block 34; the moving block 34 is in an L-shaped structure, the upper left end of the moving block is an inclined surface, the moving block 34 is covered on the fixed block 33 and is connected with the fixed block 33 through a second spring 36, and the first positioning piece positions the rotating rod 30 in the vertical direction; the second positioning piece structurally comprises a positioning shaft 41, a positioning rod 43 and a guide sleeve 42, wherein an annular ratchet groove 56 is formed in the outer side wall of the positioning shaft 41, the rear end of the positioning shaft 41 is fixed at the central part of the fourth gear 39, and the front end of the positioning shaft is inserted into a pipe hole of the push plate 40; the guide sleeve 42 is sleeved on the positioning rod 43 and fixed on the front side wall of the push plate 40; the left end of the positioning rod 43 penetrates through the tube wall of the push plate 40 and then is meshed with the ratchet groove 56, a limiting plate 44 is fixed on the positioning rod 43, the right end of the limiting plate 44 is connected with the left end of the guide sleeve 42 through a third spring 45, and the second positioning piece limits the push plate 40 to rotate clockwise; the linkage mechanism links the rotating shaft 22 and the sampling ring 17;

after the clock 27 times for three hours, the hour hand shaft drives the third gear 38 to rotate for three turns, the third gear 38 drives the fourth gear 39 to rotate for three hundred thirty degrees clockwise, and the fourth gear 39 drives the push plate 40 to rotate through the positioning ring 41; when the push plate 40 rotates to the upper right side, the rotating rod 30 is gradually pushed to the right to the vertical direction, the lower right end of the rotating rod 30 is inserted into the corner of the fixed block 33, and the positioning block 35 is inserted into the socket of the rotating rod 30, so that the rotating rod 30 and the fixed block 33 are kept vertical after being fixedly connected; meanwhile, the rack 31 is meshed with the first gear 26 and the second gear 27, after the first gear 26 rotates along with the rotating shaft 22, the rack 31 is driven to move downwards, the rack 31 drives the second gear 27 to rotate, so that the first conical gear 28 rotates along with the second gear 27, and the first conical gear 28 drives the annular gear 29 to rotate; the first sliding block moves downwards along with the rack 31 and simultaneously drives the pushing block 55 to move downwards, the pushing block 55 rotates the pushing plate 40 which is rotated to the right end downwards for thirty degrees, in the rotating process of the pushing plate 40, the ratchet groove 56 slides the positioning rod 43 rightwards, so that after the pushing rod 40 rotates for thirty degrees around the positioning shaft 41, the third spring 45 extends to push the positioning rod 43 leftwards, the positioning rod 43 is inserted into the ratchet groove 56, and the pushing plate 40 is prevented from rotating anticlockwise around the positioning shaft 41; when the first conical gear 28 drives the ring gear 29 to rotate for forty-five degrees, so that the next empty sampling bottle 18 rotates to the position below the dust exhaust port 15, the bottom end of the rack 31 moves to the fixed block 33, the moving block 34 is abutted rightwards, the moving block 34 drives the positioning block 35 to move rightwards and then leave the rotating rod 30, the rotating rod 30 rotates leftwards under the action of the torsion spring to reset, so that the rack 31 leaves the first gear 26 and the second gear 27, and then the first spring 32 contracts and drives the first sliding block to slide upwards and drive the rack 31 to move upwards and then reset; after the clock 27 counts three hours again, the sampling ring 17 is driven to rotate by forty-five degrees through the linkage mechanism, so that the next empty sampling bottle 18 rotates to the position below the dust exhaust port 15, dust in the air in eight time periods in one day can be sampled respectively, and researchers can conveniently research the atmospheric environment.

The sampling bottle is characterized by further comprising a bottle cap 19, the bottle cap 19 is screwed on the bottle mouth of the sampling bottle 18, a sealing piece is arranged in the bottle cap 19, the structure of the sealing piece comprises a fixing shaft 48 and a bottle stopper 47, two ends of the fixing shaft 48 are fixed with second sliding blocks 49, each second sliding block 49 is arranged in a sliding groove in the inner side wall of the bottle cap 18, and the bottom end of each second sliding block 49 is connected with the bottom end of the sliding groove through a fourth spring 50; the bottle stopper 47 is sleeved on the fixed shaft 48, the through hole at the upper part is provided with a support column 51, the hole at the front side wall is provided with a positioning column 52, the rear end of the positioning column 52 is inserted into the hole on the fixed shaft 48, the front end of the support column 51 is fixedly connected with the front end of the positioning column 52 through a connecting plate 53, and the rear side wall of the connecting plate 53 is connected with the front side wall of the bottle stopper 47 through a fifth spring 54; the sealing piece automatically seals the sampling bottle 18 after dust collection;

when the sampling bottle 18 screwed on the bottle cap 19 is inserted into the sampling hole, the bottle stopper 47 in the bottle cap 19 below the dust exhaust port 15 is inserted into the dust exhaust port 15, the bottle stopper 19 not below the dust exhaust port 15 is pressed on the outer side wall of the dust suction pipe 10, after the fourth spring 50 is compressed, the second sliding block 49 moves downwards, so that the bottle stopper 47 retracts into the bottle cap 19, and the positioning column 52 is inserted into the fixed shaft 48, so that the bottle stopper 47 is prevented from rotating around the fixed shaft 48; when one sampling bottle 18 at the lower part collects dust in three hours, the sampling ring 17 drives the sampling bottle 18 to rotate, the side wall of the dust exhaust port 15 presses the abutting column 51, the abutting column 51 drives the positioning column 52 to move through the connecting plate 53, and the positioning column 52 leaves the fixed shaft 48; then, as the sampling ring 17 rotates, the sidewall of the dust discharging port 15 pushes the bottle stopper 47, so that the bottle stopper 47 rotates ninety degrees around the fixed shaft 48, the bottle stopper 47 blocks the top port of the bottle cap 19, and the collected dust is prevented from being poured out when the sampling bottle 18 rotates to be inverted.

It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present disclosure. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

Claims (7)

1. The dust collecting device is characterized by comprising a dust collecting mechanism and a dust collecting mechanism, wherein the dust collecting mechanism structurally comprises a base (12), a dust suction pipe (10) and a wind direction cover (16), a through hole formed in the rear lower side wall of the dust suction pipe (10) is a dust discharge port (15), a support column (11) is fixed at the bottom end of the dust suction pipe (10), the bottom end of the support column (11) is horizontally and rotatably connected with the base (12), a waterproof net (13) and dust filtering cloth (14) are fixed at the front end of a pipe hole of the dust suction pipe (10), a plurality of through holes formed in the front side wall of the wind direction cover (16) are exhaust holes (25), the front end part of the wind direction cover (16) is sleeved on the dust suction pipe (10) and is rotatably connected with the dust suction pipe (10), a sampling ring (17) is fixed on the inner side wall of the wind direction cover (16), the inner side wall of the sampling ring (17) is attached to the outer side wall of the dust suction pipe (10), the sampling ring (17) is uniformly arranged on the wind direction cover (16), and eight through holes are uniformly formed in each sampling bottle (18); the dust collection mechanism is arranged in the dust collection pipe (10) and the wind direction cover (16), and the dust collection mechanism is connected with the sampling ring (17) through a linkage mechanism.

2. The dust collecting device of claim 1, wherein the dust collecting mechanism comprises a mounting plate (20) and a motor (21), the mounting plate (20) is arranged in the wind direction cover (16) and is fixedly connected with the dust collecting pipe (10) through a connecting rod (46); motor (21) are fixed on the back side wall of mounting panel (20), the rotor front end of motor (21) is fixed with pivot (22), the central through-hole of straining dirt cloth (14) is passed to the preceding tip position of pivot (22), it is fixed with fan blade (23) in the pivot of scraping pole (24), rear side to strain to be fixed with in pivot (22) of dirt cloth (14) front side, it pastes on the inside wall of dust absorption pipe (10) and the preceding lateral wall of straining dirt cloth (14) to scrape pole (24).

3. A dust collecting device according to claim 1, wherein the linkage mechanism comprises a first gear (26), a second gear (27), a first conical gear (28), a ring gear (29) and a time linkage member, the ring gear (29) is fixed on the rear side wall of the sampling ring (17); the first gear (26) is fixed on the rotating shaft (22); the second gear (27) and the first conical gear (28) are coaxial and are arranged on the mounting plate (20), the second gear (27) is connected with the first gear (26) through a time linkage piece, and the first conical gear (28) is meshed with the ring gear (29).

4. The dust collecting device according to claim 3, wherein the structure of the time linkage part comprises a rotating rod (30), a rack (31), a clock (37), a fourth gear (39) and a push plate (40), a first sliding block is arranged in a sliding hole on the rotating rod (30), the lower end of the first sliding block is connected with the rotating rod (30) through a first spring (32), a push block (55) is fixed at the left end of the first sliding block, the rotating rod (30) is arranged on the front side of the mounting plate (20), the top end of the rotating rod is rotatably connected with the mounting plate (20) through a pin shaft with a torsion spring, and the bottom end of the rotating rod (30) is connected with the mounting plate (20) through a first positioning part; the rack (31) is arranged in a right gap of the rotating rod (30) and is fixedly connected with the first sliding block; the clock (37) is arranged in the through hole of the mounting plate (20), and a third gear (38) is fixed at the front end of the wheel shaft of the hour wheel; the fourth gear (39) is arranged on the front side wall of the mounting plate (20) and is meshed with the third gear (38); the left end position of push pedal (40) is the pipe structure, the left end of push pedal (40) is connected through No. two setting elements.

5. The dust collecting device according to claim 4, wherein the first positioning element comprises a fixing block (33), a positioning block (35) and a moving block (34), the fixing block (33) is of an L-shaped structure and is fixed on the front side wall of the mounting plate (20), and the right lower end of the rotating rod (30) is inserted into an included angle of the fixing block (33); the left lower end of the positioning block (35) is an inclined plane and is arranged in a through hole of the fixing block (33), the left end part of the positioning block (35) is inserted into a socket of the rotating rod (30), and the right end of the positioning block is fixedly connected with the moving block (34); the moving block (34) is of an L-shaped structure, the upper left end of the moving block is an inclined plane, and the moving block (34) covers the fixed block (33) and is connected with the fixed block (33) through a second spring (36).

6. The dust collecting device according to claim 4, wherein the second positioning element comprises a positioning shaft (41), a positioning rod (43) and a guide sleeve (42), a circular ratchet groove (56) is formed in the outer side wall of the positioning shaft (41), the rear end of the positioning shaft (41) is fixed to the central portion of the fourth gear (39), and the front end of the positioning shaft is inserted into the pipe hole of the push plate (40); the guide sleeve (42) is sleeved on the positioning rod (43) and fixed on the front side wall of the push plate (40); the left end of the positioning rod (43) penetrates through the pipe wall of the push plate (40) and then is meshed with the ratchet groove (56), a limiting plate (44) is fixed on the positioning rod (43), and the right end of the limiting plate (44) is connected with the left end of the guide sleeve (42) through a third spring (45).

7. A dust collecting device according to claim 1, wherein a storage battery is arranged in the cavity of the base (12), a control switch is arranged in the side wall, and the storage battery, the control switch and the motor (21) form a loop.

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