CN214516649U - Dust device is used in municipal works construction - Google Patents
Dust device is used in municipal works construction Download PDFInfo
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- CN214516649U CN214516649U CN202023271988.5U CN202023271988U CN214516649U CN 214516649 U CN214516649 U CN 214516649U CN 202023271988 U CN202023271988 U CN 202023271988U CN 214516649 U CN214516649 U CN 214516649U
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- dust
- box
- fixedly arranged
- pipe
- water
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- 239000000428 dust Substances 0.000 title claims abstract description 113
- 238000010276 construction Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 2
- 241000883990 Flabellum Species 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
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Abstract
The utility model discloses a dust-settling device for municipal engineering construction, which comprises a device mainboard, a sprinkling dust-settling mechanism and a dust-absorbing mechanism are fixedly arranged on the device mainboard, the sprinkling dust-settling mechanism comprises a water tank, a water pump, a water pipe, a connecting pipe and a nozzle, the water tank is internally and fixedly provided with the water pump, the water pipe is fixedly arranged on the water pump, the water pipe extends upwards to the outside of the water tank, the top of the water tank is fixedly provided with a filter box through a fixed block, the filter box is internally provided with a filter screen, the water pipe penetrates through the filter box, the part of the water pipe above the filter box is sleeved with a sleeve pipe, a sealing ring is arranged between the sleeve pipe and the water pipe, one end of the sleeve pipe far away from a first bevel gear is fixedly provided with the connecting pipe, under the action of a dust-absorbing cover and the dust-absorbing pipe, the fan blades can absorb dust in the air into the dust-absorbing box, and further remove the dust generated by the municipal engineering construction, a second motor rotates to drive a slide block to rotate, one rotation of the sliding block drives the connecting rod to rotate, and therefore the angle of the dust collection box can be adjusted.
Description
Technical Field
The utility model relates to a dust collector specifically is a dust device is used in municipal works construction.
Background
In China, municipal infrastructure refers to various buildings, structures, equipment and the like which are arranged in planning and construction ranges of urban areas and towns (villages) and provide paid or unpaid public products and services for residents based on government responsibilities and obligations. Various public infrastructure construction supporting in urban life all belong to municipal works category, for example common urban road, bridge, subway, underground pipeline, tunnel, river course, track traffic, sewage treatment, refuse treatment processing etc. engineering, for example again with the life closely relevant various pipelines: rainwater, sewage, water supply, reclaimed water, electric power (parts except red lines), telecommunication, heating power, gas and the like, and construction of squares, urban greening and the like belong to the municipal engineering category.
Dust device structure is comparatively single for municipal works construction on the existing market, and the function is comparatively single, can not the multi-angle carry out dust fall work, and dust fall effect is not good, and dust fall efficiency is low excessively, and traditional dust device often can only come the dust fall through the dust absorption, and dust fall effect is limited, and at the during operation, the device can not remove at will, brings a lot of troubles for the staff.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dust device is used in municipal works construction to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a dust falling device for municipal engineering construction comprises a device mainboard, wherein a water sprinkling and dust removing mechanism and a dust suction mechanism are fixedly arranged on the device mainboard, the water sprinkling and dust removing mechanism comprises a water tank, a water pump, a water pipe, a connecting pipe and a spray head, the water pump is fixedly arranged in the water tank, the water pipe is fixedly arranged on the water pump and extends upwards to the outside of the water tank, a filter box is fixedly arranged at the top of the water tank through a fixed block, a filter screen is arranged in the filter box, the water pipe penetrates through the filter box, a sleeve is sleeved on the part of the water pipe above the filter box, a sealing ring is arranged between the sleeve and the water pipe, one end of the sleeve, which is far away from a first bevel gear, is fixedly provided with the connecting pipe, the dust suction mechanism comprises an adjusting box, a connecting rod, a fixing column, a second motor, a dust suction motor, a placing box and a dust suction box, the adjusting box is fixedly arranged on the device mainboard, a reciprocating screw rod is rotationally arranged in the adjusting box, a second motor is fixedly arranged on the reciprocating screw rod, the first sliding blocks are symmetrically arranged on the reciprocating screw rod at two sides of the second motor, the outer side of the adjusting box is fixedly provided with a fixed column, a connecting rod is hinged on the fixed column, one end of the connecting rod extends into the adjusting box, a hinge rod is hinged between one end of the connecting rod positioned in the adjusting box and the first sliding block, the other end of the connecting rod extends out of the main board of the device, and one end of the connecting rod far away from the adjusting box is hinged with a dust collection box, a placing box is fixedly arranged at the top of the adjusting box, a dust absorption motor is fixedly arranged in the placing box, the rotating part of the dust absorption motor is fixedly provided with fan blades, one side of the placing box is provided with an opening, the dust collection box is characterized in that a dust collection pipe is connected to the opening, one end, far away from the opening, of the dust collection pipe extends into the dust collection box, and a dust collection cover is fixedly connected to one end, in the dust collection box, of the dust collection pipe.
As a further aspect of the present invention: also comprises a limiting mechanism, the limiting mechanism comprises a moving main body, a supporting rod, a second sliding block, a moving wheel and a fixed rod, the lower surface of the main board of the device is fixedly provided with a movable main body, a support rod is fixedly arranged in the movable main body, the end of the support column far away from the support column is fixedly provided with a movable wheel, two sides of the support column between the two support columns are symmetrically provided with a second sliding block, a fixed rod is fixedly arranged on the lower surface of the second sliding block, a limiting rod is fixedly arranged at one end of the fixed rod far away from the second sliding block, the limiting rod is fixedly arranged at one end, far away from the second sliding block, of the limiting rod, the abutting plate is fixedly arranged on the limiting rod, racks are fixedly arranged between the fixing rods, the racks are vertically arranged, the racks are meshed and connected with gears, and the gear rotating portion is fixedly connected with the limiting motor.
As a further aspect of the present invention: the filter box comprises a filter box body, and is characterized in that a first motor is fixedly arranged at the top of the filter box body, a second bevel gear is fixedly arranged on a rotating part of the first motor, a first bevel gear is connected to the second bevel gear in a meshed mode, and a sleeve is arranged on the first bevel gear.
As a further aspect of the present invention: a plurality of spray heads are uniformly distributed on the connecting pipe.
As a further aspect of the present invention: the placing box is positioned on the right side of the fan blades and is fixedly provided with a dehumidifying plate.
As a further aspect of the present invention: support columns are symmetrically and fixedly arranged on two sides of the lower surface of the support rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the dust collection motor rotates to drive the fan blades to rotate, under the action of the dust collection cover and the dust collection pipe, the fan blades can suck dust in air into the dust collection box to further remove dust generated in municipal engineering construction, when the angle of the dust collection box needs to be adjusted, the second motor rotates to drive the first sliding block to rotate, the first sliding block rotates to drive the connecting rod to rotate, the angle of the dust collection box can be further adjusted, when the angle of the connecting rod and the dust collection cover needs to be adjusted, only the dust collection box needs to be rotated, after dust collection is completed, further dust removal needs to be achieved through watering, the dust removal effect is better, at the moment, water in the water tank is pumped into the connecting pipe through the water pipe and the sleeve pipe by the water pump, the filter box can further filter the water, meanwhile, the first motor rotates to drive the second bevel gear to rotate, the second bevel gear rotates to drive the first bevel gear to rotate, and the first bevel gear rotates to drive the sleeve pipe to rotate, and then drive the connecting pipe and rotate, and then the shower nozzle can rotate the water spray, the dust removal effect has been increased, when the device during operation, it can remove the wheel to the device, when needs carry on spacingly to the device, spacing motor rotates and drives the gear rotation, gear rotation drives the rack and rotates to the direction of keeping away from each other, the rack drives the direction motion of dead lever to keeping away from each other, and then drive the direction motion of gag lever post to keeping away from each other and carry out the butt until butt joint board to removing the wheel, at this moment, can carry on spacingly to the device.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a filter box according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: 1-device main board, 2-water tank, 3-water pump, 4-water pipe, 5-filter tank, 6-sleeve, 7-first motor, 8-first bevel gear, 9-second bevel gear, 10-connecting pipe, 11-spray head, 12-placing tank, 13-dust collection motor, 14-fan blade, 15-dehumidification board, 16-dust collection pipe, 17-dust collection cover, 18-adjusting tank, 19-connecting rod, 20-fixing column, 21-dust collection box, 22-reciprocating screw rod, 23-second motor, 24-slide block I, 25-moving body, 26-supporting rod, 27-supporting column, 28-slide block II, 29-moving wheel, 30-fixing rod, 31-butt plate, 32-limiting rod, 33-rack, 34-gear, 35-filter screen, 36-sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-2, in the embodiment of the present invention, a dust settling device for municipal engineering construction comprises a device main board 1, a sprinkling dust removal mechanism and a dust collection mechanism are fixedly arranged on the device main board 1, the sprinkling dust removal mechanism comprises a water tank 2, a water pump 3, a water pipe 4, a connecting pipe 10 and a nozzle 11, the water pump 3 is fixedly arranged in the water tank 2, the water pipe 4 is fixedly arranged on the water pump 3, the water pipe 4 extends upwards out of the water tank 2, a filter box 5 is fixedly arranged on the top of the water tank 2 through a fixing block, a filter screen 35 is arranged in the filter box 5, the water pipe 4 penetrates through the filter box 5, a sleeve 6 is sleeved on a part of the water pipe 4 above the filter box 5, a seal ring 36 is arranged between the sleeve 6 and the water pipe 4, a first motor 7 is fixedly arranged on the top of the filter box 5, a second bevel gear 9 is fixedly arranged on a rotating part of the first motor 7, a first bevel gear 8 is connected to the second bevel gear 9 in a meshing manner, a sleeve 6 is arranged on the first bevel gear 8, a connecting pipe 10 is fixedly arranged at one end, far away from the first bevel gear 8, of the sleeve 6, and a plurality of spray heads 11 are uniformly distributed on the connecting pipe 10;
further, the dust collection mechanism comprises an adjusting box 18, a connecting rod 19, a fixed column 20, a second motor 23, a dust collection motor 13, a placing box 12 and a dust collection box 21, the adjusting box 18 is fixedly arranged on the device main board 1, a reciprocating lead screw 22 is rotatably arranged in the adjusting box 18, the second motor 23 is fixedly arranged on the reciprocating lead screw 22, first sliding blocks 24 are symmetrically arranged on the reciprocating lead screw 22 at two sides of the second motor 23, the fixed column 20 is fixedly arranged on the outer side of the adjusting box 18, the connecting rod 19 is hinged on the fixed column 20, one end of the connecting rod 19 extends into the adjusting box 18, a hinge rod is hinged between one end of the connecting rod 19 located in the adjusting box 18 and the first sliding blocks 24, the other end of the connecting rod extends out of the device main board 1, one end of the connecting rod 19 far away from the adjusting box 18 is hinged with the dust collection box 21, the placing box 12 is fixedly arranged at the top of the adjusting box 18, the dust collection device is characterized in that a dust collection motor 13 is fixedly arranged in the placing box 12, a fan blade 14 is fixedly arranged at the rotating part of the dust collection motor 13, a dehumidifying plate 15 is fixedly arranged on the right side of the fan blade 14 in the placing box 12, an opening is formed in one side of the placing box 12, a dust collection pipe 16 is connected to the opening, one end, far away from the opening, of the dust collection pipe 16 extends into the dust collection box 21, and one end, in the dust collection box 21, of the dust collection pipe 16 is fixedly connected with a dust collection cover 17, when the device works, the dust collection motor 13 is externally connected with a power supply, the dust collection motor 13 rotates to drive the fan blade 14 to rotate, under the action of the dust collection cover 17 and the dust collection pipe 16, the fan blade 14 can suck dust in the air into the dust collection box 21, and further remove dust generated in municipal engineering construction, when the angle of the dust collection box 21 needs to be adjusted, the second motor 23 is externally connected with the power supply, the second motor 23 rotates to drive the first sliding block 24 to rotate, a24 rotations of slider drive connecting rod 19 and rotate, and then the angle of adjustable dust absorption box 21, when the angle of connecting rod 19 and suction hood 17 needs to be adjusted, only need to rotate dust absorption box 21 can, after the dust absorption is accomplished, need further remove dust through the watering, make the dust removal effect better, then, with the external power supply of water pump 3, water pump 3 passes through water pipe 4 and sleeve pipe 6 pump in the water tank 2 into connecting pipe 10, rose box 5 can further filter water, and simultaneously, with the external power supply of first motor 7, first motor 7 rotates and drives second bevel gear 9 and rotate, second bevel gear 9 rotates and drives first bevel gear 8 and rotate, first bevel gear 8 rotates and drives sleeve pipe 6 and rotate, and then drive connecting pipe 10 and rotate, and then shower nozzle 11 can rotate the water spray, the dust removal effect has been increased.
Example 2
Referring to fig. 3, the embodiment is different from embodiment 1 in that the apparatus further includes a limiting mechanism, the limiting mechanism includes a moving body 25, a supporting rod 26, a second slider 28, a moving wheel 29 and a fixing rod 30, the moving body 25 is fixedly disposed on the lower surface of the main board 1 of the apparatus, the supporting rod 26 is fixedly disposed in the moving body 25, the supporting columns 27 are symmetrically and fixedly disposed on two sides of the lower surface of the supporting rod 26, the moving wheel 29 is fixedly disposed on one end of the supporting column 27 away from the supporting rod 26, the second slider 28 is symmetrically disposed on two sides of the supporting rod 26 between the two supporting columns 27, the fixing rod 30 is fixedly disposed on the lower surface of the second slider 28, a limiting rod 32 is fixedly disposed on one end of the fixing rod 30 away from the second slider 28, a limiting rod 32 is fixedly disposed on one end of the limiting rod 32 away from the second slider 28, and an abutting plate 31 is fixedly disposed on the limiting rod 32, two fixed rack 33 that is provided with between the dead lever 30, two rack 33 sets up from top to bottom, two the meshing is connected with gear 34 between the rack 33, gear 34 rotation portion and spacing motor fixed connection, when the device during operation, remove wheel 29 and can remove the device, when needs are carried on spacingly to the device, with spacing motor external power supply, spacing motor rotates and drives gear 34 and rotates, gear 34 rotates and drives rack 33 and rotates to the direction of keeping away from each other, rack 33 drives dead lever 30 and moves to the direction of keeping away from each other, and then drives gag lever post 32 and carries out the butt until butt joint board 31 to removing wheel 29 to the direction motion of keeping away from each other, at this moment, can carry on spacingly to the device.
The utility model discloses a theory of operation is:
when the device works, the dust collection motor 13 is externally connected with a power supply, the dust collection motor 13 rotates to drive the fan blades 14 to rotate, under the action of the dust collection cover 17 and the dust collection pipe 16, the fan blades 14 can suck dust in air into the dust collection box 21, and further remove dust generated in municipal engineering construction, when the angle of the dust collection box 21 needs to be adjusted, the second motor 23 is externally connected with the power supply, the second motor 23 rotates to drive the first sliding block 24 to rotate, the first sliding block 24 rotates to drive the connecting rod 19 to rotate, and further the angle of the dust collection box 21 can be adjusted, when the angle of the connecting rod 19 and the dust collection cover 17 needs to be adjusted, only the dust collection box 21 needs to be rotated, after dust collection is completed, further dust removal needs to be carried out through sprinkling water, so that the dust removal effect is better, at the moment, the water pump 3 is externally connected with the power supply, the water in the water tank 2 passes through the water pipe 4 and the sleeve 6, the filter box 5 can further filter water, meanwhile, the first motor 7 is externally connected with a power supply, the first motor 7 rotates to drive the second bevel gear 9 to rotate, the second bevel gear 9 rotates to drive the first bevel gear 8 to rotate, the first bevel gear 8 rotates to drive the sleeve 6 to rotate, further, the connecting pipe 10 is driven to rotate, further, the spray head 11 can spray water in a rotating mode, the dust removal effect is increased, when the device works, the movable wheel 29 can move the device, when the device needs to be limited, the limiting motor is externally connected with the power supply, the limiting motor rotates to drive the gear 34 to rotate, the gear 34 rotates to drive the rack 33 to rotate towards directions far away from each other, the rack 33 drives the fixed rod 30 to move towards directions far away from each other, further, the limiting rod 32 is driven to move towards directions far away from each other until the abutting plate 31 abuts against the movable wheel 29, and at the moment, the device can be limited.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The dust falling device for municipal engineering construction comprises a device main board (1), wherein a water sprinkling and dust removing mechanism and a dust collecting mechanism are fixedly arranged on the device main board (1), and is characterized in that the water sprinkling and dust removing mechanism comprises a water tank (2), a water pump (3), a water pipe (4), a connecting pipe (10) and a spray head (11), the water pump (3) is fixedly arranged in the water tank (2), the water pump (3) is fixedly provided with the water pipe (4), the water pipe (4) upwards extends out of the water tank (2), the top of the water tank (2) is fixedly provided with a filter box (5) through a fixed block, a filter screen (35) is arranged in the filter box (5), the water pipe (4) penetrates through the filter box (5) and the part of the water pipe (4) above the filter box (5) is sleeved with a sleeve (6), and a sealing ring (36) is arranged between the sleeve (6) and the water pipe (4), a connecting pipe (10) is fixedly arranged at one end, far away from the first bevel gear (8), of the sleeve (6), the dust collection mechanism comprises an adjusting box (18), a connecting rod (19), a fixing column (20), a second motor (23), a dust collection motor (13), a placing box (12) and a dust collection box (21), the adjusting box (18) is fixedly arranged on the device main board (1), a reciprocating screw rod (22) is rotatably arranged in the adjusting box (18), the second motor (23) is fixedly arranged on the reciprocating screw rod (22), first sliding blocks (24) are symmetrically arranged on the reciprocating screw rod (22) and positioned on two sides of the second motor (23), the fixing column (20) is fixedly arranged on the outer side of the adjusting box (18), the connecting rod (19) is hinged to the fixing column (20), one end of the connecting rod (19) extends into the adjusting box (18), and a hinge rod is hinged between one end, positioned on the adjusting box (18), of the connecting rod (19) and the first sliding blocks (24), the other end extends to device mainboard (1) outer just the one end that regulating box (18) was kept away from in connecting rod (19) articulates there is suction box (21), fixed being provided with in regulating box (18) top places case (12), it is provided with dust absorption motor (13) to place case (12) internal fixation, the fixed flabellum (14) that is provided with of rotation portion of dust absorption motor (13), place case (12) one side and seted up the opening, be connected with dust absorption pipe (16) on the opening, dust absorption pipe (16) are kept away from open-ended one end and are extended to in suction box (21) and dust absorption pipe (16) one end fixedly connected with suction hood (17) in suction box (21).
2. The dust falling device for municipal engineering construction according to claim 1, further comprising a limiting mechanism, wherein the limiting mechanism comprises a moving body (25), a support rod (26), a second slider (28), a moving wheel (29) and a fixing rod (30), the moving body (25) is fixedly arranged on the lower surface of the device main board (1), the support rod (26) is fixedly arranged in the moving body (25), support columns (27) are symmetrically and fixedly arranged on the two sides of the lower surface of the support rod (26), the moving wheel (29) is fixedly arranged on one end, far away from the support rod (26), of the support column (27), the second slider (28) is symmetrically arranged on the support rod (26) between the two support columns (27), the fixing rod (30) is fixedly arranged on the lower surface of the second slider (28), and a limiting rod (32) is fixedly arranged on one end, far away from the second slider (28), of the fixing rod (30), the fixed gag lever post (32) that is provided with of one end that slider two (28) was kept away from in gag lever post (32), fixed butt joint board (31) that is provided with on gag lever post (32), two fixed rack (33), two of being provided with between dead lever (30) rack (33) sets up from top to bottom, two the meshing is connected with gear (34) between rack (33), gear (34) rotation portion and spacing motor fixed connection.
3. The dust falling device for municipal engineering construction according to claim 2, wherein a first motor (7) is fixedly arranged at the top of the filter box (5), a second bevel gear (9) is fixedly arranged at the rotating part of the first motor (7), a first bevel gear (8) is connected to the second bevel gear (9) in a meshing manner, and a sleeve (6) is arranged on the first bevel gear (8).
4. The dust falling device for municipal engineering construction according to claim 1, wherein a plurality of spray heads (11) are uniformly distributed on the connecting pipe (10).
5. The dust falling device for municipal engineering construction according to claim 2, wherein a dehumidifying plate (15) is further fixedly arranged on the right side of the fan blades (14) in the placing box (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023271988.5U CN214516649U (en) | 2020-12-29 | 2020-12-29 | Dust device is used in municipal works construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023271988.5U CN214516649U (en) | 2020-12-29 | 2020-12-29 | Dust device is used in municipal works construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214516649U true CN214516649U (en) | 2021-10-29 |
Family
ID=78298500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023271988.5U Expired - Fee Related CN214516649U (en) | 2020-12-29 | 2020-12-29 | Dust device is used in municipal works construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214516649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054430A (en) * | 2021-11-11 | 2022-02-18 | 曹红亮 | Based on dust shaker for on-spot safety control of afforestation |
| CN114733297A (en) * | 2022-04-28 | 2022-07-12 | 刘胜利 | Dustproof device for building construction |
-
2020
- 2020-12-29 CN CN202023271988.5U patent/CN214516649U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054430A (en) * | 2021-11-11 | 2022-02-18 | 曹红亮 | Based on dust shaker for on-spot safety control of afforestation |
| CN114733297A (en) * | 2022-04-28 | 2022-07-12 | 刘胜利 | Dustproof device for building construction |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211029 |