CN210321947U - Dust collection weighing device - Google Patents
Dust collection weighing device Download PDFInfo
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- CN210321947U CN210321947U CN201921653866.7U CN201921653866U CN210321947U CN 210321947 U CN210321947 U CN 210321947U CN 201921653866 U CN201921653866 U CN 201921653866U CN 210321947 U CN210321947 U CN 210321947U
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- dust
- dust collection
- synchronous belt
- synchronous
- guide rail
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- 239000000428 dust Substances 0.000 title claims abstract description 172
- 238000005303 weighing Methods 0.000 title claims abstract description 39
- 230000001360 synchronised effect Effects 0.000 claims abstract description 83
- 238000010521 absorption reaction Methods 0.000 claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- UXUFTKZYJYGMGO-CMCWBKRRSA-N (2s,3s,4r,5r)-5-[6-amino-2-[2-[4-[3-(2-aminoethylamino)-3-oxopropyl]phenyl]ethylamino]purin-9-yl]-n-ethyl-3,4-dihydroxyoxolane-2-carboxamide Chemical compound O[C@@H]1[C@H](O)[C@@H](C(=O)NCC)O[C@H]1N1C2=NC(NCCC=3C=CC(CCC(=O)NCCN)=CC=3)=NC(N)=C2N=C1 UXUFTKZYJYGMGO-CMCWBKRRSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The application provides a dust collection weighing device, which comprises a support frame; a pair of first synchronous belts are arranged in the support frame in parallel; a first guide rail is arranged below each first synchronous belt; each first guide rail is provided with a walking slide block; the walking sliding blocks are fixed on the corresponding first synchronous belts; a second guide rail is arranged between the pair of walking sliding blocks; a dust absorption sliding block is arranged on the second guide rail; the dust absorption sliding block is fixed on the second synchronous belt; the dust collection sliding block is connected with a dust collection component. The beneficial effect of this application: the dust collecting assembly alternately moves along the directions parallel to the second guide rail and vertical to the second guide rail to collect accumulated dust, so that the problems of time and labor waste caused by manual collection are solved, the interference of human factors is avoided, and the error is effectively reduced; the gram number of the accumulated dust collected by the dust collection component is weighed on a precision balance, and the gram number of the accumulated dust is the evaluation index of 'clean in grams' of the road. The device is also suitable for dust collection and weighing in factories, classrooms and other places needing detection.
Description
Technical Field
The application relates to the technical field of dust collection and weighing, in particular to a dust collection weighing device.
Background
"cleaning in grams" is a road dust accumulation assessment standard derived for guaranteeing "APEC blue", specifically 1m2The weight of the dust deposited on the road does not exceed the standard gram number. At present, when the road dust is cleaned in grams, a manual method, namely manually sweeping 1m, is mostly adopted2And collecting the dust on the road, weighing the collected dust to obtain the gram number of the dust, and taking the obtained gram number as an evaluation index of 'clean in grams'. The method for manually collecting the accumulated dust wastes time and labor, has interference of human subjective factors, and has larger error.
Disclosure of Invention
It is an object of the present application to address the above problems and it is desirable to provide a dust suction weighing device.
The application provides a dust collection weighing device, which comprises a support frame; a pair of first synchronous belts are arranged in parallel in the horizontal direction in the supporting frame; a pair of first synchronous belts driven by a first driving mechanism; a first guide rail is arranged below each first synchronous belt; each first guide rail is provided with a walking slide block; the walking sliding blocks are fixed on the corresponding first synchronous belts; a second guide rail is arranged between the pair of walking sliding blocks; a dust absorption sliding block is arranged on the second guide rail; the dust absorption sliding block is fixed on the second synchronous belt; the second synchronous belt is driven by a second driving mechanism; the dust collection sliding block is connected with a dust collection assembly for collecting accumulated dust; a mounting plate is arranged above the support frame; a precision balance is fixedly arranged on the mounting plate and used for weighing the accumulated dust collected by the dust collection assembly; the cross-sectional area of the inside of the support frame is 1m2And the outer part is covered with a shell. By adopting the technical scheme, the second synchronous belt drives the dust collection sliding block to slide along the second guide rail when rotating, therebyThe dust collection sliding block drives the dust collection assembly to move along the direction parallel to the second guide rail; the first synchronous belt drives the walking slider to slide along the first guide rail when rotating, so that a dust collecting component on the dust collection slider is driven to move along the direction vertical to the first guide rail, the dust collecting component alternately moves along the directions parallel to the second guide rail and vertical to the second guide rail and simultaneously collects accumulated dust, and the 1m of dust in the support frame is collected2The problem that the accumulated dust is time-consuming and labor-consuming when being collected manually is solved, interference of human factors does not exist, and errors are effectively reduced; the gram number of the accumulated dust collected by the dust collection component is weighed on a precision balance, and the gram number of the accumulated dust is the evaluation index of 'clean in grams' of the road.
According to the technical scheme provided by some embodiments of the application, the dust collection assembly comprises a dust suction pump, a dust suction head and a dust suction pipeline which is connected with the dust suction pump and the dust suction head; one end of the dust collection pipeline close to the dust collection head is fixed on the dust collection sliding block; the dust suction pump is fixedly arranged on the mounting plate; the dust absorption pipeline is detachably connected with a filter cylinder. By adopting the technical scheme, before dust collection, the filter cartridge is installed after being weighed for the first time, after dust collection is finished, the filter cartridge is detached for weighing for the second time, and the difference value of weighing for two times is the weight of collected accumulated dust.
According to the technical scheme provided by some embodiments of the application, a ball screw motor is fixed below a dust collection sliding block; the ball screw motor comprises a ball screw and a screw nut matched with the ball screw; an optical axis parallel to the ball screw is arranged on the dust collection sliding block; a fixed platform is sleeved on the optical axis; the fixed platform is fixedly connected with the screw rod nut; the dust absorption pipeline is fixed on the fixed platform. Through adopting above-mentioned technical scheme, thereby ball rotates and makes the screw-nut who matches with it along the lead screw up-and-down motion to drive the dust absorption head up-and-down motion in order to adjust the height of dust absorption head.
According to certain embodiments of the present disclosure, a dust collection assembly further includes a cartridge receiving cavity and a connection member; the filter cylinder accommodating cavity is arranged at the position, above the mounting plate, of the dust collection pipeline; the filter cartridge is arranged in the filter cartridge accommodating cavity; the connecting part is detachably arranged above the filter cylinder accommodating cavity; one end of the connecting part is provided with a flexible hose, and the other end of the connecting part is provided with an annular groove; the flexible hose is sleeved outside the dust collection pipeline and is fixed by a binding belt; the annular groove is clamped on the wall of the accommodating cavity of the filter cylinder. Through adopting above-mentioned technical scheme, make things convenient for the dismouting of straining a section of thick bamboo.
According to the technical scheme provided by some embodiments of the application, two first synchronous pulleys are arranged in each first synchronous belt; the first synchronous belt wheels at the corresponding positions of the two first synchronous belts are connected through a synchronous shaft; the first driving mechanism comprises a first motor and two third synchronous belt wheels arranged along the vertical direction; the two third synchronous belt wheels are connected through a third synchronous belt, and are respectively sleeved on the output shaft of the first motor and any one synchronous shaft.
According to the technical scheme provided by some embodiments of the application, two second synchronous belt wheels are arranged in the second synchronous belt; the second driving mechanism comprises a second motor; any second synchronous belt wheel is sleeved on an output shaft of the second motor.
According to the technical scheme provided by some embodiments of the application, a wind vane is fixedly installed on the shell and used for measuring the wind direction of the current environment.
The beneficial effect of this application: utilize this dust absorption weighing device when carrying out dust absorption weighing to road laying dust, place dust absorption weighing device and wait to detect the region on the road, it slides along the second guide rail to rotate to drive the dust absorption slider through the second hold-in range, thereby the dust absorption slider drives the direction motion of collection dirt subassembly along parallel second guide rail, it slides along first guide rail to rotate to drive the walking slider through first hold-in range, thereby it moves along the direction of perpendicular first guide rail to drive the collection dirt subassembly on the dust absorption slider, carry out laying dust collection when the direction alternating motion of collection dirt subassembly along parallel second guide rail and perpendicular second guide rail, thereby the completion is to the inside 1m of support frame2The problem that the accumulated dust is time-consuming and labor-consuming when being collected manually is solved, interference of human factors does not exist, and errors are effectively reduced; the gram number of the accumulated dust collected by the dust collection component is weighed on a precision balance, and the gram number of the accumulated dust is the evaluation index of 'clean in grams' of the road; by mixingThe cross-sectional area of the inside of the support frame was set to 1m2Further conversion of the weighing result is not needed; through setting up the shell, can effectively reduce external environment to the influence of dust absorption process, can protect the structure of support frame inside simultaneously. The device is also suitable for dust collection and weighing in factories, classrooms and other places needing detection.
Drawings
FIG. 1 is a schematic view of an internal structure of a dust-absorbing and weighing device provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a mounting plate of the dust-collecting and weighing device provided by the embodiment of the application;
FIG. 3 is a schematic external structural view of the dust-collecting and weighing device provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of a connecting part of the dust collection and weighing device provided by the embodiment of the application.
The text labels in the figures are represented as:
1. a support frame; 2. a housing; 3. a first synchronization belt; 4. a first timing pulley; 5. a synchronizing shaft; 6. a first motor; 7. a third synchronous pulley; 8. a third synchronous belt; 9. a first guide rail; 10. a traveling slide block; 11. a second synchronous belt; 12. a second guide rail; 13. a dust absorption sliding block; 14. a second motor; 15. a second timing pulley; 16. a dust collection head; 17. a dust collection duct; 18. a dust suction pump; 19. mounting a plate; 20. a cartridge receiving cavity; 21. a connecting member; 22. an annular groove; 23. a flexible hose; 24. a ball screw motor; 25. a wind vane; 26. a precision balance.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Referring to fig. 1 to 3, the present embodiment provides a dust collection weighing apparatus, which includes a supporting frame 1, wherein the supporting frame 1 has a square cross section, and the area of the inner cross section of the supporting frame 1 is 1m2The outer part is covered with a shell 2, so that the outer part is effectively reducedThe influence of the environment on the dust collection process can protect the structure inside the support frame 1; a pair of first synchronous belts 3 are arranged in parallel in the horizontal direction in a support frame 1, two ends in each first synchronous belt 3 are respectively provided with a first synchronous belt pulley 4, the first synchronous belt pulleys 4 at the corresponding positions of the two first synchronous belts 3 are connected through a synchronous shaft 5, 2 synchronous shafts 5 are respectively vertical to the first synchronous belts 3, the pair of first synchronous belts 3 are driven by a first driving mechanism, the first driving mechanism comprises a first motor 6 and two third synchronous belt pulleys 7 arranged in the vertical direction, the two third synchronous belt pulleys 7 are connected through a third synchronous belt 8, the third synchronous belt pulley 7 at the lower part is sleeved on an output shaft of the first motor 6, the third synchronous belt pulley 7 at the upper part is sleeved on one end of one of the synchronous shafts 5, the first motor 6 is fixed on the support frame 1, when the first motor 6 rotates, the third synchronous belt pulley 7 on the output shaft of the first motor 6 is driven to rotate, thereby, the third synchronous belt 8 rotates, the third synchronous belt wheel 7 sleeved on the synchronous shaft 5 rotates, further the synchronous shaft 5 rotates and drives the first synchronous belt wheel 4 sleeved on the synchronous shaft 5 to rotate, and the driving of the pair of first synchronous belts 3 is realized; a first guide rail 9 is arranged below each first synchronous belt 3, the first guide rails 9 are arranged in parallel to the first synchronous belts 3, two ends of each first guide rail 9 are fixed on the support frame 1, a walking slider 10 is arranged on each first guide rail 9, the walking sliders 10 are fixed on the first synchronous belts 3 on the same side through bolts and synchronous belt fixing pieces, and when the first synchronous belts 3 rotate, the walking sliders 10 can slide along the first guide rails 9 under the driving of the first synchronous belts 3; a second synchronous belt 11 and a pair of second guide rails 12 are arranged between the pair of walking sliders 10, the pair of second guide rails 12 are respectively arranged perpendicular to the first guide rails 9, two ends of the second guide rails 12 are respectively fixed on the pair of walking sliders 10, the dust collection weighing device further comprises a dust collection slider 13, the pair of second guide rails 12 respectively penetrate through two ends of the dust collection slider 13, the dust collection slider 13 is fixed on the second synchronous belt 11 through bolts and a synchronous belt fixing piece, the second synchronous belt 11 is driven through a second driving mechanism, the second driving mechanism comprises a second motor 14, the second motor 14 is fixed on any walking slider 10, the second synchronous belt 11 is respectively provided with a second synchronous belt wheel 15 at two inner ends,one second synchronous belt wheel 15 is sleeved on an output shaft of the second motor 14, the other second synchronous belt wheel 15 is sleeved on a fixed shaft, the fixed shaft is fixed on the traveling slide block 10 far away from the second motor 14, and when the second motor 14 rotates, the second synchronous belt wheel 15 on the output shaft of the second motor 14 is driven to rotate, so that the second synchronous belt 11 is driven to rotate, and the dust collection slide block 13 is driven to slide along the second guide rail 12; the dust collection assembly for collecting the accumulated dust is connected to the dust collection sliding block 13, and the dust collection assembly collects the accumulated dust in the support frame 1 while moving along with the dust collection sliding block 13, so that the problems that the accumulated dust is collected manually, time and labor are wasted, the interference of human factors is avoided, and the error is effectively reduced; the mounting plate 19 is arranged above the support frame 1, the precision balance 26 is fixedly mounted on the mounting plate 19, and after the dust collecting component collects the accumulated dust, the dust collecting component can be used for weighing the accumulated dust collected by the dust collecting component, and the cross section area inside the support frame 1 is 1m2Therefore, the evaluation index of 'clean in grams' can be obtained without additional conversion.
Referring further to fig. 4, preferably, the dust collecting assembly includes a dust suction pump 18, a dust suction head 16 and a dust suction pipe 17, the dust suction pump 18 is fixedly mounted on a mounting plate 19, the dust suction pipe 17 is connected to the dust suction pump 18 and the dust suction head 16 through the mounting plate 19, one end of the dust suction pipe 17 near the dust suction head 16 is fixed on the dust suction slider 13, a portion of the dust suction pipe 17 above the mounting plate 19 is provided with a filter cartridge accommodating chamber 20 and a connecting part 21, the filter cartridge accommodating chamber 20 is disposed above the mounting plate 19, a filter cartridge is detachably disposed in the filter cartridge accommodating chamber 20, the connecting part 21 is detachably disposed above the filter cartridge accommodating chamber 20, one end of the connecting part 21 is provided with a flexible hose 23, the other end is provided with an annular groove 22, the flexible hose 23 is sleeved outside the dust suction pipe 17 and is fixed by a binding band, the, before dust collection, the filter cartridge is weighed for the first time and is installed in the filter cartridge accommodating cavity 20, after dust collection is finished, the binding belt is loosened, the connecting part 21 is taken down, the filter cartridge is detached again for weighing for the second time, and the difference value of the two weighing is the weight of the collected accumulated dust.
Preferably, a ball screw motor 24 is fixedly installed below the dust collection slider 13, the ball screw motor 24 comprises a ball screw and a screw nut matched with the ball screw, the ball screw penetrates through the dust collection slider 13 from bottom to top, an optical axis parallel to the ball screw is further arranged on the dust collection slider 13, and a fixed platform is sleeved on the optical axis; fixed platform and screw-nut fixed connection, dust absorption pipeline 17 is fixed in on the fixed platform, when ball screw motor 24 operation, ball rotates, make screw-nut along the lead screw up-and-down motion, fixed platform is along the optical axis up-and-down motion under screw-nut's drive simultaneously, thereby drive dust absorption pipeline 17 up-and-down motion with the height of adjusting dust absorption head 16, when needs carry out the dust absorption during operation, control ball screw motor 24 operation, make dust absorption head 16 downstream to suitable height, when accomplishing the dust absorption during operation, control ball screw motor 24 reverse operation, make dust absorption head 16 upward movement.
Preferably, a wind vane 25 is fixedly mounted on the housing 2 for measuring the wind direction of the current environment.
The working process of adopting the dust collection weighing device to collect dust and weigh roads is as follows:
1. preparing dust collection, namely measuring the weight of the filter cartridge before dust collection by using a precision balance 26 and recording the weight as m1, controlling the ball screw motor 24 to operate, adjusting the dust collection head 16 to a proper height, controlling the first motor 6 and the second motor 14 to operate, and moving the dust collection sliding block 13 to one corner inside the support frame 1;
2. controlling the first motor 6 to rotate, enabling the walking slider 10 to slide along the first guide rail 9 to drive the dust collection slider 13 to move along the direction parallel to the first guide rail 9, controlling the first motor 6 to stop rotating when the dust collection slider 13 slides to the edge of one side of the support frame 1, controlling the second motor 6 to rotate 14, enabling the dust collection slider 13 to slide along the second guide rail 12 for the length of the section of the dust collection head 16, controlling the second motor 14 to stop rotating, enabling the walking slider 10 to slide to the edge of one side of the support frame 1 along the first guide rail 9 in the opposite direction, controlling the first motor 6 to stop rotating, controlling the second motor 14 to rotate 14, enabling the dust collection slider 13 to slide along the second guide rail 12 for the length of the section of the dust collection head 16, controlling the second motor 14 to stop rotating, repeating the steps, and in the whole movement process, suckingThe dust head 16 always carries out dust collection on the road inside the support frame 1, the first motor 6 and the second motor 14 alternately run until the dust head 16 moves from one corner of the support frame 1 to the opposite corner, and the dust collection for the 1m inside the support frame 1 is completed2Collecting road accumulated dust;
3. and (3) weighing accumulated dust, loosening the binding belt, removing the connecting component 21, removing the filter cartridge, measuring the weight of the filter cartridge after dust collection by using a precision balance 26, and recording the weight as M2, wherein the difference value between M2 and M1 is the weight of the collected accumulated dust, namely the evaluation index of 'clean in grams' of the road.
The application mainly aims at road dust absorption and weighing, and discloses a dust absorption and weighing device which can finish 1m2The method has the advantages that the road accumulated dust is collected and weighed to obtain the evaluation index of 'clean in grams', the problem that manual collection of the accumulated dust is time-consuming and labor-consuming is solved, interference of human factors does not exist, and errors are effectively reduced. Meanwhile, the device is also suitable for dust collection and weighing in factories, classrooms and other places needing detection.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.
Claims (7)
1. A dust collection weighing device is characterized by comprising a support frame (1); a pair of first synchronous belts (3) are arranged in parallel in the horizontal direction in the support frame (1); a pair of the first synchronous belts (3) is driven by a first driving mechanism; a first guide rail (9) is arranged below each first synchronous belt (3); each of the first guide rails(9) A walking slide block (10) is arranged on the upper part; the walking sliding blocks (10) are fixed on the corresponding first synchronous belts (3); a second guide rail (12) is arranged between the pair of walking sliding blocks (10); a dust absorption sliding block (13) is arranged on the second guide rail (12); the dust collection sliding block (13) is fixed on the second synchronous belt (11); the second synchronous belt (11) is driven by a second driving mechanism; the dust collection sliding block (13) is connected with a dust collection assembly for collecting accumulated dust; a mounting plate (19) is arranged above the support frame (1); a precision balance (26) is fixedly arranged on the mounting plate (19) and used for weighing the accumulated dust collected by the dust collection assembly; the cross section area of the inside of the support frame (1) is 1m2The outer part is covered with a shell (2).
2. The dust-collecting and weighing device according to claim 1, wherein said dust-collecting assembly comprises a dust-collecting pump (18), a dust-collecting head (16) and a dust-collecting duct (17) connecting said dust-collecting pump (18) and said dust-collecting head (16); one end of the dust suction pipeline (17) close to the dust suction head (16) is fixed on the dust suction sliding block (13); the dust suction pump (18) is fixedly arranged on the mounting plate (19); the dust collection pipeline (17) is detachably connected with a filter cylinder.
3. The dust-absorbing and weighing device of claim 2, wherein a ball screw motor (24) is fixed below the dust-absorbing sliding block (13); the ball screw motor (24) comprises a ball screw and a screw nut matched with the ball screw; an optical axis parallel to the ball screw is arranged on the dust collection sliding block (13); a fixed platform is sleeved on the optical axis; the fixed platform is fixedly connected with the screw rod nut; the dust absorption pipeline (17) is fixed on the fixed platform.
4. The vacuum weighing apparatus according to claim 2, wherein said dust collection assembly further comprises a cartridge receiving chamber (20) and a connecting member (21); the cartridge receiving chamber (20) is disposed at the dust suction duct (17) above the mounting plate (19); the filter cartridge is placed in the filter cartridge accommodating cavity (20); the connecting part (21) is detachably arranged above the filter cartridge accommodating cavity (20); one end of the connecting part (21) is provided with a flexible hose (23), and the other end is provided with an annular groove (22); the flexible hose (23) is sleeved outside the dust suction pipeline (17) and is fixed through a binding belt; the annular groove (22) is clamped on the wall of the filter cartridge accommodating cavity (20).
5. Dust-collecting and weighing device according to claim 1, characterized in that two first timing pulleys (4) are provided in each first timing belt (3); the first synchronous belt wheels (4) at the corresponding positions of the two first synchronous belts (3) are connected through a synchronous shaft (5); the first driving mechanism comprises a first motor (6) and two third synchronous belt wheels (7) arranged along the vertical direction; the two third synchronous belt wheels (7) are connected through a third synchronous belt (8), and the two third synchronous belt wheels (7) are respectively sleeved on the output shaft of the first motor (6) and any one of the synchronous shafts (5).
6. The dust-absorbing weighing device according to claim 1, wherein two second synchronous pulleys (15) are arranged in the second synchronous belt (11); the second drive mechanism comprises a second motor (14); any one second synchronous belt wheel (15) is sleeved on an output shaft of the second motor (14).
7. Dust-absorbing and weighing device according to claim 1, characterized in that a wind vane (25) is fixedly mounted on the housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921653866.7U CN210321947U (en) | 2019-09-30 | 2019-09-30 | Dust collection weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921653866.7U CN210321947U (en) | 2019-09-30 | 2019-09-30 | Dust collection weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210321947U true CN210321947U (en) | 2020-04-14 |
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ID=70133349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921653866.7U Expired - Fee Related CN210321947U (en) | 2019-09-30 | 2019-09-30 | Dust collection weighing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN210321947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514275A (en) * | 2019-09-30 | 2019-11-29 | 河北工业大学 | A kind of dust suction weighing device |
-
2019
- 2019-09-30 CN CN201921653866.7U patent/CN210321947U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514275A (en) * | 2019-09-30 | 2019-11-29 | 河北工业大学 | A kind of dust suction weighing device |
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Granted publication date: 20200414 |