CN115586117A - Portable direct-reading dust concentration measuring instrument - Google Patents
Portable direct-reading dust concentration measuring instrument Download PDFInfo
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- CN115586117A CN115586117A CN202211102685.1A CN202211102685A CN115586117A CN 115586117 A CN115586117 A CN 115586117A CN 202211102685 A CN202211102685 A CN 202211102685A CN 115586117 A CN115586117 A CN 115586117A
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- 239000000428 dust Substances 0.000 title claims abstract description 26
- 239000012528 membrane Substances 0.000 claims abstract description 29
- 238000005070 sampling Methods 0.000 claims abstract description 21
- 230000000670 limiting effect Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a portable direct-reading dust concentration measuring instrument which comprises a shell, a display screen, a flowmeter, a sampling head and keys, wherein the display screen is arranged on the surface of the shell, a plurality of keys are arranged on the surface of the shell beside the display screen, the flowmeter is arranged on the surface of the shell beside the display screen, the sampling head is fixedly arranged on the side surface of the shell, a first mounting hole is formed in the surface of the shell beside the flowmeter, a filter membrane clamp is inserted into the surface of the first mounting hole in a sliding mode, a connecting channel is fixedly connected to the inner wall of the shell and is communicated with the sampling head, a measuring device is arranged at one end, far away from the sampling head, of the connecting channel in a matched mode, and the measuring device and the inner wall of the shell are fixedly installed.
Description
Technical Field
The invention relates to the technical field of direct-reading dust concentration measuring instruments, in particular to a portable direct-reading dust concentration measuring instrument.
Background
Dust concentration measurement appearance mainly used environmental protection trade's dust concentration measurement uses, and current direct-reading dust concentration measurement appearance adopts the light scattering method to carry out dust concentration measurement mostly, and the aspiration pump bleeds, and the air inlet admits air, gets into the dust cavity, detects, then measures through the flowmeter, shows on the display screen surface, can attach to the surface of the sensor of installation in it behind the air admission dust cavity that has the dust, leads to using later stage fortune dimension cost higher.
Therefore, there is a need to provide a portable direct-reading dust concentration measuring instrument to solve the above-mentioned technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a portable direct-reading dust concentration measuring instrument which comprises a shell, a display screen, a flowmeter, a sampling head and keys, wherein the display screen is arranged on the surface of the shell, a plurality of keys are arranged on the surface of the shell beside the display screen, the flowmeter is arranged on the surface of the shell beside the display screen, the sampling head is fixedly arranged on the side surface of the shell, a first mounting hole is formed in the surface of the shell beside the flowmeter, a filter membrane clamp is inserted into the surface of the first mounting hole in a sliding mode, a connecting channel is fixedly connected to the inner wall of the shell and communicated with the sampling head, a measuring device is arranged on one end, away from the sampling head, of the connecting channel in a matched mode, the measuring device is fixedly arranged on the inner wall of the shell, the measuring device is connected with the flowmeter through a pipeline, a battery assembly is arranged in the shell, the battery assembly is connected with the measuring device through a lead, an air suction pump is arranged on the inner wall of the shell beside the battery assembly, the air pump is connected with the battery assembly through a lead, and the air pump is connected with the flowmeter through a lead.
Preferably, the shell top is symmetrical fixedly connected with fixing seats, and the handles are installed on the surfaces of the two fixing seats through torsion springs.
Preferably, the measuring device comprises a first fixed block, a second fixed block, a movable block, an ejector block, a limiting rod, a spring, a first round hole, a second mounting hole, a ray detection mechanism, an adjusting mechanism, an air inlet channel, a mounting plate and a through hole, wherein the first fixed block is arranged at one end of the connecting channel far away from the sampling head in a matching way, the second fixed block is arranged at the surface of the first fixed block far away from the connecting channel in a matching way, the movable block is arranged at the surface of the second fixed block far away from the first fixed block in a matching way, the air inlet channel is respectively arranged inside the first fixed block, the second fixed block and the movable block, the mounting plate is fixedly arranged on the inner wall of the shell, the through hole is arranged on the surface of the mounting plate, the through hole is in sliding insertion connection with the filter membrane clamp, the ejector block is fixedly connected with the side surface of the mounting plate, and the limiting rod is symmetrically and fixedly connected with the surface of the ejector block, the surface cover of gag lever post is equipped with the spring, the one end of four springs all with kicking block fixed connection, the second round hole has been seted up to the equal symmetry in surface of second fixed block and movable block, first round hole has been seted up on the surface of wherein four second drums, the other end of four springs all is connected with first round hole fixed surface, the gag lever post is pegged graft with the second round hole slip, pass through the pipe connection between inlet channel and the flowmeter, four gag lever posts all peg graft with first fixed block slip, first fixed block and second fixed block all with mounting panel fixed mounting, the surface rotation of first fixed block installs adjustment mechanism, the second mounting hole has been seted up at the casing top, the second mounting hole rotates with adjustment mechanism and installs, movable block and adjustment mechanism cooperation installation, install ray detection mechanism in the inlet channel.
Preferably, the initial state of the spring is a compressed state.
Preferably, the surface of the first fixing block, which is close to the second fixing block, is symmetrically provided with circular grooves, and the limiting rod is in sliding insertion connection with the circular grooves.
Preferably, the surface of the movable block close to the second fixed block is fixedly connected with a rubber sealing ring.
Preferably, the adjusting mechanism comprises a cylinder, an adjusting plate and a cylinder, the surface of the second fixing block is fixedly connected with the cylinder, the adjusting plate is installed on the surface of the cylinder in a rotating mode, the adjusting plate is installed in a rotating mode through the second installation hole, the surface of the movable block is fixedly connected with the cylinder, and the adjusting plate is installed in a matched mode with the cylinder.
Preferably, the surface of the second fixing block is located beside the cylinder and fixedly connected with a lug, the surface of the adjusting plate is provided with a limiting hole, and the lug is installed in a matched mode with the limiting hole.
Compared with the prior art, the invention provides a portable direct-reading dust concentration measuring instrument, which has the following beneficial effects:
1. according to the invention, the air inlet channels are arranged in the first fixed block, the second fixed block and the movable block, and the filter membrane is clamped between the movable block and the second fixed block, so that the gas to be detected entering the air inlet channel can enter the air inlet channel in the movable block after being filtered, and a sensor in a ray detection mechanism arranged in the air inlet channel can be prevented from being polluted, thereby reducing the maintenance cost.
2. According to the invention, the adjusting plate is shifted, the adjusting plate rotates by a certain angle, the rotary joint of the cylinder and the adjusting plate is taken as a rotary center, the cylinder is in surface contact with the adjusting plate, the cylinder and the moving block are further driven to approach towards the ejector block, the moving block is separated from the second fixed block until the moving block is in surface contact with the ejector block, the filter membrane clamp is inserted into the first mounting hole, the adjusting plate is loosened to mount and position the filter membrane, the adjusting plate can also be arranged to initially mount and position the filter membrane clamp to ensure that the filter membrane is aligned with the air inlet channel, the initial state of the spring is a compressed state, and the reaction force generated by the compressed spring acts on the surface of the first round hole, so that the rubber sealing ring on the surface of the moving block can be in close contact with the surface of the filter membrane clamp, the sealing property is ensured, the filter membrane clamp is also clamped and positioned to ensure the stable mounting of the filter membrane clamp, and the filter membrane clamp can be conveniently mounted and dismounted by adjusting the adjusting plate.
Drawings
FIG. 1 is a schematic view of the internal structure of the housing of the present invention;
FIG. 2 is a schematic view of the construction of the stop rod and the first circular hole of the present invention;
FIG. 3 is a schematic structural view of a second fixed block and a movable block according to the present invention;
FIG. 4 is one of the overall structural schematics of the present invention;
FIG. 5 is a second schematic view of the overall structure of the present invention;
FIG. 6 is a schematic view of a first anchor block according to the present invention;
fig. 7 is a schematic structural view of the rubber seal ring of the present invention.
In the figure: 1. a housing; 2. a display screen; 3. a flow meter; 4. a sampling head; 5. pressing a key; 6. a measuring device; 7. a first mounting hole; 8. filter membrane clamping; 9. a connecting channel; 10. a handle; 11. a first fixed block; 12. a second fixed block; 13. a movable block; 14. a top block; 15. a limiting rod; 16. a spring; 17. a first circular hole; 18. a second circular hole; 19. a second mounting hole; 20. a ray detection mechanism; 21. an adjustment mechanism; 22. an air intake passage; 23. mounting a plate; 24. a through hole; 25. a circular groove; 26. a rubber seal ring; 27. a cylinder; 28. an adjusting plate; 29. a cylinder; 30. a bump; 31. a limiting hole; 32. a battery pack; 33. an air pump; 34. a fixed seat.
Detailed Description
Referring to fig. 1 to 7, the invention relates to a portable direct-reading dust concentration measuring instrument, which comprises a shell 1, a display screen 2, a flowmeter 3, a sampling head 4 and keys 5, wherein the display screen 2 is installed on the surface of the shell 1, the keys 5 are installed on the surface of the shell 1 beside the display screen 2, the flowmeter 3 is installed on the surface of the shell 1 beside the display screen 2, the sampling head 4 is fixedly installed on the side surface of the shell 1, a first installation hole 7 is formed in the surface of the shell 1 beside the flowmeter 3, a filter membrane clamp 8 is inserted in a sliding mode on the surface of the first installation hole 7, a connecting channel 9 is fixedly connected to the inner wall of the shell 1, the connecting channel 9 is communicated with the sampling head 4, a measuring device 6 is installed on one end of the connecting channel 9, which is far away from the sampling head 4, the measuring device 6 is fixedly installed on the inner wall of the shell 1, the measuring device 6 is connected with the flowmeter 3 through a pipeline, a battery assembly 32 is installed inside the shell 1, the battery assembly 32 is connected with the measuring device 6 through a wire, an air suction pump 33 is installed on the inner wall of the shell 1, the battery assembly 32 is connected with the air pump 33 through a wire, and the flowmeter 3 through a wire.
The measuring device 6 comprises a first fixed block 11, a second fixed block 12, a movable block 13, a top block 14, a limiting rod 15, a spring 16, a first round hole 17, a second round hole 18, a second mounting hole 19, a ray detection mechanism 20, an adjusting mechanism 21, an air inlet channel 22, a mounting plate 23 and a through hole 24, wherein the first fixed block 11 is arranged at one end of a connecting channel 9 far away from a sampling head 4 in a matched manner, the second fixed block 12 is arranged on the surface of the first fixed block 11 far away from the connecting channel 9 in a matched manner, the movable block 13 is arranged on the surface of the second fixed block 12 far away from the first fixed block 11 in a matched manner, the air inlet channel 22 is respectively arranged inside the first fixed block 11, the second fixed block 12 and the movable block 13, the mounting plate 23 is fixedly arranged on the inner wall of the shell 1, the through hole 24 is arranged on the surface of the mounting plate 23, the through hole 24 is in a sliding insertion connection with the filter membrane clamp 8, the top block 14 is fixedly connected to the side surface of the mounting plate 23, the surface of the top block 14 is symmetrically and fixedly connected with a limiting rod 15, the surface of the limiting rod 15 is sleeved with springs 16, one ends of four springs 16 are all fixedly connected with the top block 14, the surfaces of the second fixed block 12 and the movable block 13 are all symmetrically provided with second round holes 18, wherein the surfaces of four second cylinders 29 are provided with first round holes 17, the other ends of the four springs 16 are all fixedly connected with the surfaces of the first round holes 17, the limiting rod 15 is in sliding insertion connection with the second round holes 18, the air inlet channel 22 is connected with the flowmeter 3 through a pipeline, the four limiting rods 15 are all in sliding insertion connection with the first fixed block 11, the first fixed block 11 and the second fixed block 12 are all fixedly installed with an installation plate 23, the surface of the first fixed block 11 is rotatably provided with an adjusting mechanism 21, the top of the shell 1 is provided with a second installation hole 19, the second installation hole 19 is rotatably installed with the adjusting mechanism 21, the movable block 13 is installed with the adjusting mechanism 21 in a matching manner, the ray detection mechanism 20 is installed in the air inlet passage 22, and it should be noted that the structure of the dust chamber is changed, so that the sensor in the ray detection mechanism 20 is prevented from being polluted, and the maintenance cost is reduced.
The initial state of the spring 16 is a compressed state, which ensures that sufficient acting force can be provided to enable the movable block 13 to be stably matched with the filter membrane clamp 8, and it should be noted that the filter membrane clamp 8 can be clamped and positioned.
First fixed block 11 has been close to the surperficial symmetry of second fixed block 12 and has been seted up circular recess 25, gag lever post 15 is pegged graft with circular recess 25 slip, it needs to explain, can carry out initial installation location to first fixed block 11, be convenient for first fixed block 11 installs, guarantee first fixed block 11 and second fixed block 12 simultaneously, second fixed block 12 all is in same straight line with movable block 13, a plurality of inlet channel 22 are linked together, movable block 13 is close to the fixed surface of second fixed block 12 and is connected with rubber seal 26, it needs to explain, play sealed effect, can guarantee the filter membrane and press from both sides the leakproofness of complex between 8 and the movable block 13.
Adjustment mechanism 21 includes cylinder 27, regulating plate 28 and drum 29, the fixed surface of second fixed block 12 is connected with cylinder 27, the surface rotation of cylinder 27 installs regulating plate 28, regulating plate 28 rotates the installation with second mounting hole 19, the fixed surface of movable block 13 is connected with drum 29, regulating plate 28 and drum 29 cooperation installation, it needs to explain, play the regulation effect, can be convenient for the filter membrane presss from both sides 8 and place in between movable block 13 and the second fixed block 12, be convenient for the installation and the dismantlement of filter membrane clamp 8, facilitate the use.
The surface of the second fixing block 12 is located beside the cylinder 27 and is fixedly connected with a projection 30, the surface of the adjusting plate 28 is provided with a limiting hole 31, the projection 30 is installed in cooperation with the limiting hole 31, it should be noted that the limiting effect is achieved, when the projection 30 contacts with the other end of the limiting hole 31, the distance between the movable block 13 and the second fixing block 12 is the largest, and the distance between the second fixing block 12 and the movable block 13 can be limited to be increased again.
The working principle and the using process of the invention are as follows:
the radiation detection mechanism 20 is a radiation detection device in the existing direct-reading dust concentration measuring instrument, the radiation source and various sensors are included, which are the existing mature technologies and are not described in detail, a circuit board can be installed in the shell 1, which is connected with the ray detection mechanism 20, the air pump 33, the battery component 32, the flowmeter 3 and the display screen 2 through leads, when in use, the air is pumped by the air pump 33, the sampling head 4 enters air, enters the air inlet channel 22 in the first fixed block 11 through the connecting channel 9, enters the air inlet channel 22 in the second fixed block 12, is filtered by the filter membrane, and is detected and sensed by the ray detection mechanism 20, the surface of the display screen 2 and the surface of the flowmeter 3 are displayed through the circuit board, so that the sensor arranged on the surface of the air inlet channel 22 in the second fixed block 12 is prevented from being polluted, thereby reducing the maintenance cost, and by shifting the adjusting plate 28, the adjusting plate 28 rotates a certain angle, with the rotary joint of the cylinder 27 and the adjusting plate 28 as the center of rotation, the cylinder 29 is in surface contact with the adjusting plate 28, thereby driving the cylinder 29 and the movable block 13 to approach the ejector block 14, separating the movable block 13 from the second fixed block 12 until the movable block 13 contacts the surface of the ejector block 14, inserting the filter membrane clamp 8 from the first mounting hole 7, loosening the adjusting plate 28, the filter membrane is installed and positioned, the adjusting plate 28 can also perform initial installation and positioning on the filter membrane clamp 8, the filter membrane can be ensured to be aligned with the air inlet channel 22, the initial state of the spring 16 is a compressed state, the reaction force generated by the compression of the spring 16 acts on the surface of the first round hole 17, so that the rubber sealing ring 26 on the surface of the movable block 13 can be in close contact with the surface of the filter membrane clamp 8, the sealing performance is ensured, and meanwhile, the filter membrane clamp 8 is clamped and positioned.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The utility model provides a portable direct-reading dust concentration measuring apparatu, includes casing (1), display screen (2), flowmeter (3), sampling head (4) and button (5), the surface mounting of casing (1) has display screen (2), casing (1) surface is located and installs a plurality of buttons (5) by display screen (2), casing (1) surface is located and installs flowmeter (3) by display screen (2), the side fixed mounting of casing (1) has sampling head (4), its characterized in that, the surface of casing (1) is located flowmeter (3) and opens aside and is equipped with first mounting hole (7), the surface sliding of first mounting hole (7) is pegged graft and is had filter membrane clamp (8), the inner wall fixed connection of casing (1) has connect passageway (9), connect passageway (9) and be linked together with sampling head (4), connect passageway (9) keep away from the one end cooperation of sampling head (4) and install measuring device (6), measuring device (6) and casing (1) inner wall fixed mounting, measuring device (6) pass through the pipeline (3) and connect the wire assembly (32), the battery pack (32) is installed to the measuring device, the battery pack is characterized in that an air extracting pump (33) is arranged beside the battery pack (32) on the inner wall of the shell (1), the air extracting pump (33) is connected with the battery pack (32) through a lead, and the air extracting pump (33) is connected with the flowmeter (3) through a lead.
2. The portable direct-reading dust concentration measuring instrument according to claim 1, wherein: casing (1) top symmetry fixedly connected with fixing base (34), two handle (10) are installed through torsion spring (16) in the surface of fixing base (34).
3. The portable direct-reading dust concentration measuring instrument according to claim 1, wherein: the measuring device (6) comprises a first fixed block (11), a second fixed block (12), a movable block (13), an ejector block (14), a limiting rod (15), a spring (16), a first round hole (17), a second round hole (18), a second mounting hole (19), a ray detection mechanism (20), an adjusting mechanism (21), an air inlet channel (22), a mounting plate (23) and a through hole (24), wherein the first fixed block (11) is installed at one end of the connecting channel (9) far away from the sampling head (4) in a matched manner, the second fixed block (12) is installed at the surface of the first fixed block (11) far away from the connecting channel (11) in a matched manner, the movable block (13) is installed at the inner part of the first fixed block (11), the air inlet channel (22) is installed at the inner part of the second fixed block (11) and the movable block (13), the mounting plate (23) is fixedly installed at the inner wall of the shell (1), the through hole (24) is installed at the surface of the mounting plate (23), the through hole (24) and the filter membrane (8) are connected with the symmetrical ejector block (14) in a sliding manner, the surface cover of gag lever post (15) is equipped with spring (16), four the one end of spring (16) all with kicking block (14) fixed connection, second round hole (18), wherein four have been seted up to the equal symmetry in surface of second fixed block (12) and movable block (13) first round hole (17), four first round hole (17) have been seted up on the surface of second drum (29), four the other end of spring (16) all is connected with first round hole (17) fixed surface, gag lever post (15) and second round hole (18) slip grafting, through the pipe connection between inlet channel (22) and flowmeter (3), four gag lever post (15) all with first fixed block (11) slip grafting, first fixed block (11) and second fixed block (12) all with mounting panel (23) fixed mounting, the surface rotation of first fixed block (11) installs adjustment mechanism (21), second mounting hole (19) have been seted up at casing (1) top, second mounting hole (19) and adjustment mechanism (21) rotation mounting, movable block (13) and adjustment mechanism (21) cooperation are installed ray detection mechanism (20).
4. A portable direct-reading dust concentration measuring instrument according to claim 3, characterized in that: the initial state of the spring (16) is a compressed state.
5. A portable direct-reading dust concentration measuring instrument according to claim 3, characterized in that: the surface of the first fixing block (11) close to the second fixing block (12) is symmetrically provided with circular grooves (25), and the limiting rod (15) is in sliding splicing with the circular grooves (25).
6. A portable direct-reading dust concentration measuring instrument according to claim 3, characterized in that: the surface of the movable block (13) close to the second fixed block (12) is fixedly connected with a rubber sealing ring (26).
7. A portable direct-reading dust concentration measuring instrument according to claim 3, characterized in that: adjustment mechanism (21) includes cylinder (27), regulating plate (28) and drum (29), the fixed surface of second fixed block (12) is connected with cylinder (27), the surface rotation of cylinder (27) installs regulating plate (28), regulating plate (28) rotate the installation with second mounting hole (19), the fixed surface of movable block (13) is connected with drum (29), regulating plate (28) and drum (29) cooperation installation.
8. The portable direct-reading dust concentration measuring instrument according to claim 7, wherein: the surface of second fixed block (12) is located other fixedly connected with lug (30) of cylinder (27), spacing hole (31) have been seted up on the surface of regulating plate (28), lug (30) and spacing hole (31) cooperation installation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202211102685.1A CN115586117A (en) | 2022-09-09 | 2022-09-09 | Portable direct-reading dust concentration measuring instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202211102685.1A CN115586117A (en) | 2022-09-09 | 2022-09-09 | Portable direct-reading dust concentration measuring instrument |
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CN115586117A true CN115586117A (en) | 2023-01-10 |
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CN202211102685.1A Withdrawn CN115586117A (en) | 2022-09-09 | 2022-09-09 | Portable direct-reading dust concentration measuring instrument |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116296604A (en) * | 2023-05-23 | 2023-06-23 | 麦肯嘉顿(江苏)食品有限公司 | Flour detects sampling device |
-
2022
- 2022-09-09 CN CN202211102685.1A patent/CN115586117A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116296604A (en) * | 2023-05-23 | 2023-06-23 | 麦肯嘉顿(江苏)食品有限公司 | Flour detects sampling device |
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Application publication date: 20230110 |
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