CN113959891A - Be applied to occupational health short-term test instrument - Google Patents
Be applied to occupational health short-term test instrument Download PDFInfo
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- CN113959891A CN113959891A CN202111236739.9A CN202111236739A CN113959891A CN 113959891 A CN113959891 A CN 113959891A CN 202111236739 A CN202111236739 A CN 202111236739A CN 113959891 A CN113959891 A CN 113959891A
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- 230000036541 health Effects 0.000 title claims abstract description 20
- 238000012031 short term test Methods 0.000 title claims abstract description 8
- 239000012528 membrane Substances 0.000 claims abstract description 211
- 239000000428 dust Substances 0.000 claims abstract description 144
- 238000005070 sampling Methods 0.000 claims abstract description 78
- 230000005484 gravity Effects 0.000 claims abstract description 70
- 238000001514 detection method Methods 0.000 claims abstract description 67
- 238000005259 measurement Methods 0.000 claims abstract description 55
- 238000010521 absorption reaction Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 26
- 210000001503 joint Anatomy 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000005303 weighing Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000007306 turnover Effects 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
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a be applied to occupational health short-term test instrument, which comprises a bod, can dismantle the sampling head that sets up in organism one end, set up in the organism and keep away from the digital display host computer of sampling head one end, set up the detection chamber that is linked together with the sampling head in the organism, it is equipped with the dust measurement filter membrane to detect the intracavity slip, the inherent weight position of not adsorbing dust of organism is provided with first gravity sensor, the weight position is provided with second gravity sensor after the dust absorption, first gravity sensor is used for carrying out the weight measurement and exporting first weight measurement data to the digital display host computer to the filter membrane storehouse of not adsorbing the dust, second gravity sensor is used for carrying out the weight measurement and exporting second weight measurement data to the digital display host computer to the filter membrane storehouse after adsorbing the dust, the digital display host computer is used for handling the dust concentration in order to show the air first weight measurement data and second weight measurement data. The method has the advantages that the dust content in the air can be directly measured on the spot of a workplace without being brought back to a laboratory for positioning analysis.
Description
Technical Field
The application relates to the technical field of occupational health detection, in particular to a rapid detection instrument applied to occupational health.
Background
At present occupational health detects mainly to the occupational disease harm factor of workplace and carries out the detection analysis, if to the detection and the analysis of dust content in the air, it improves vigilance to the sanitation of work to measure the dust content and be convenient for the staff, in time handles, plays the effect of environmental protection safety.
The traditional method for detecting the dust content in the air of a workplace is to attach the dust-containing air to a dust-measuring filter membrane after passing through a sampling head or a sampling cutting head, then bring the dust-measuring filter membrane back to a laboratory, and perform quantitative analysis after drying treatment, thereby obtaining the dust concentration.
With the above-described related art, the inventors consider that: the traditional detection method needs to be brought back to a laboratory for quantitative analysis to obtain the dust concentration, so that the field detection of the dust concentration is troublesome.
Disclosure of Invention
In order to facilitate the on-site direct survey of dust content in the air at the workplace, the purpose of this application is to provide one kind and is applied to occupational health short-term test instrument.
The application provides a be applied to occupational health short-term test instrument and adopt following technical scheme:
the utility model provides a be applied to occupational health short-term test instrument, include the organism, can dismantle set up in the sampling head of organism one end, set up in the digital display host computer that the sampling head one end was kept away from to the organism, set up in the organism and be linked together with the detection chamber that the sampling head is linked together, it is provided with the filter membrane storehouse to detect the intracavity slip, be equipped with the dust measurement filter membrane that adsorbs the dust in the filter membrane storehouse, it is equipped with the dust absorption back check weighing position that is close to the digital display host computer, be equipped with the drive to detect the intracavity the filter membrane storehouse from the dust absorption check weighing position slip to the dust absorption back weighing position transmission device, the organism is located the digital display host computer and is equipped with the air exhaust device that is linked together with the detection chamber towards the sampling head one side, air exhaust device is used for inhaling external air from the sampling head and through the dust measurement filter membrane, the inherent dust absorption check weighing position of organism is provided with first gravity sensor, The dust collection and dust collection integrated weighing system is characterized in that a second gravity sensor is arranged at the weight measurement position after dust collection, the first gravity sensor is used for measuring the weight of a filter membrane cabin which does not adsorb dust and outputting first weight measurement data to the digital display host, the second gravity sensor is used for measuring the weight of the filter membrane cabin which adsorbs the dust and outputting second weight measurement data to the digital display host, and the digital display host is used for processing the first weight measurement data and the second weight measurement data to display the dust concentration in the air.
Through adopting above-mentioned technical scheme, when the dust concentration in the air of direct survey in the workplace, filter membrane storehouse and dust measurement filter membrane are located not dust absorption and measure the heavy position, and the first gravity sensor of not dust absorption and measure the heavy position carries out the check weighing to the filter membrane storehouse and the dust measurement filter membrane of not dust absorption this moment, then first gravity sensor exports first check weighing data to digital display host computer. After the first weight measurement is finished, the conveying device conveys the filter membrane bin into the sampling head, the filter membrane bin is located at the weight measurement position after dust collection, and then the air exhaust device is started to suck outside air from the sampling head into the detection cavity after passing through the dust measurement filter membrane. And the second gravity sensor measures the weight of the filter membrane bin and the dust measuring filter membrane after dust collection until the weight measuring position after dust collection, the second gravity sensor outputs second weight measuring data to the digital display host, and then the digital display host processes the first weight measuring data and the second weight measuring data and displays the dust concentration in the air.
Therefore, by arranging the detection cavity, the weight of the dust measurement filter membrane before and after dust collection is measured by the first gravity sensor and the second gravity sensor, and the data of the secondary weight measurement is output to the digital display host to process the data to obtain the dust concentration in the air, so that the dust concentration can be directly obtained on site in a workplace, and the dust concentration can be conveniently and directly measured on site in the workplace without being brought back to a laboratory for positioning analysis.
Optionally, the transmission device includes transmission rods sliding on two sides of the filter membrane chamber in the detection cavity, and a driving member arranged on the machine body and driving the transmission rods to slide, and one end of the transmission rod close to the sampling head is arranged on the filter membrane chamber.
By adopting the technical scheme, when the filter membrane bin and the dust measuring filter membrane are conveyed from the non-dust-absorption weight measuring position to the dust-absorption weight measuring position, the driving piece is started to drive the transmission rod to slide, and the transmission rod drives the filter membrane bin to slide from the position of the first gravity sensor to the position of the second gravity sensor after sliding, so that the weight of the dust measuring filter membrane before non-dust-absorption and after dust absorption can be conveniently measured.
Optionally, the driving member includes a rack fixedly connected to the sidewall of the driving rod, a gear rotatably connected to the inside of the housing and engaged with the rack, and a driving rod coaxially connected to the gear and penetrating through the sidewall of the housing.
By adopting the technical scheme, when the transmission rod and the filter membrane bin are driven to move from the first gravity sensor to the second gravity sensor, the driving rod is rotated, the driving rod drives the gear to rotate, the gear rotates and then drives the rack to slide back and forth in the detection cavity, and further the transmission rod and the filter membrane bin are driven to slide back and forth between the first gravity sensor and the second gravity sensor, so that the filter membrane bin and the dust measurement filter membrane are driven to slide.
Optionally, the both sides fixedly connected with pivot of dust measurement filter membrane, filter membrane storehouse roof is seted up and is supplied the pivot card to go into and pivoted rotation groove, when the pivot was located the sampling head, the filter membrane storehouse was located on the second gravity sensor.
Through adopting above-mentioned technical scheme, when changing the dust-measuring filter membrane from the filter membrane storehouse, dismantle sampling head and organism, rotate the actuating lever and drive the filter membrane storehouse and be located second gravity sensor for the pivot of dust-measuring filter membrane is located the sampling head. And then, rotating the dust measuring filter membrane to a horizontal state, and moving the dust measuring filter membrane upwards along the vertical direction to enable the rotating shaft of the dust measuring filter membrane to be separated from the rotating groove. And (3) putting a new dust measurement filter membrane into the filter membrane bin, clamping the rotating shaft into the rotating groove again, loosening the dust measurement filter membrane to enable the dust measurement filter membrane to be in a vertical state, and then rotating the driving rod to drive the filter membrane bin to slide to the first gravity sensor. Consequently through setting up the pivot and rotating the groove, the pivot is located the sampling head when utilizing the filter membrane storehouse to be located second gravity sensor for can cross after the rotation of survey dirt filter membrane to the level and move up and break away from the rotation groove with the pivot, thereby be convenient for take off the change with survey dirt filter membrane from the filter membrane storehouse.
Optionally, the top wall of the detection cavity close to the sampling head is fixedly connected with a butt joint block, the filter membrane cabin slides below the butt joint block, the bottom of the dust measurement filter membrane is provided with a suction piece which is mutually sucked with the filter membrane cabin, the butt joint block is used for abutting against the upper end of the dust measurement filter membrane to drive the lower end of the dust measurement filter membrane to rotate away from the filter membrane cabin, and the gravity of the upper end of the dust measurement filter membrane is greater than that of the lower end.
Through adopting above-mentioned technical scheme, when carrying the filter membrane storehouse to second gravity sensor from first gravity sensor, rotate the actuating lever and drive transfer line and filter membrane storehouse and together slide towards the sampling head, until behind dust-measuring filter membrane upper end butt in butt joint piece for the upper end of dust-measuring filter membrane rotates towards the direction of keeping away from the sampling head. And then make the suction piece and the filter membrane storehouse of dust-measuring filter membrane lower extreme break away from mutually to make dust-measuring filter membrane upper end overturn to the filter membrane storehouse of below under the action of gravity in, with the whole upset of dust-measuring filter membrane, with the one side orientation sampling head of original dust-measuring filter membrane orientation digital display host computer. Consequently through setting up the butt piece and attracting the piece for the one hundred eighty degrees of overturning behind survey dirt filter membrane and the butt piece butt will be originally towards the one side orientation sampling head that detects the intracavity, so that will be towards the survey dirt filter membrane surface that detects the intracavity and carry out the dust absorption, thereby improve the accurate nature that the survey dirt filter membrane adsorbs the dust.
Optionally, the attraction piece comprises a magnetic sheet arranged at the bottom of the dust measurement filter membrane and a magnetic block arranged in the filter membrane bin and attracted with the magnetic sheet, and the magnetic block is used for attracting the magnetic sheet to enable the upper end of the dust measurement filter membrane with the larger gravity to be abutted against the abutting block.
Through adopting above-mentioned technical scheme, when carrying the filter membrane storehouse to the butt piece from first gravity sensor, the magnetic sheet attracts the magnetic path to make the great one end of dust-measuring filter membrane gravity be located the top to after being convenient for the great upper end of dust-measuring filter membrane gravity and butt piece butt, make magnetic sheet and magnetic path break away from mutually, be located the one side of butt piece orientation sampling head after being convenient for the dust-measuring filter membrane upset, thereby be convenient for with one side orientation sampling head of dust-measuring filter membrane orientation detection intracavity.
Optionally, the filter membrane storehouse is located the butt pole of dust measurement filter membrane both sides towards one side fixedly connected with in the sampling head, it has the shutoff piece that will detect the shutoff of chamber opening to lie in that the butt piece articulates towards one side of sampling head on the organism, the butt pole is used for butt shutoff piece to change from the filter membrane storehouse to make the roof of dust measurement filter membrane butt shutoff piece after the upset paste tightly to in the sampling head.
By adopting the technical scheme, when the filter membrane bin is in the detection cavity, the plugging sheet is turned down by gravity to block the opening of the detection cavity. Then the driving rod is rotated to drive the driving rod and the filter membrane bin to slide towards the sampling head together, and the abutting rod is abutted to the plugging sheet to rotate towards the direction away from the detection cavity. Drive the upset of survey dirt filter membrane behind the butt survey dirt filter membrane to lie in the butt piece towards one side of sampling head after making the survey dirt filter membrane upset, the survey dirt filter membrane butt shutoff piece of upset simultaneously makes the shutoff piece rotate the roof of laminating to the sampling head, in order to open the detection chamber and carry out the dust absorption. Consequently through setting up butt rod and shutoff piece for in the filter membrane storehouse was in the enclosure space who detects the chamber when not getting into in the sampling head, just with external contact after the filter membrane storehouse got into in the sampling head, carry out the dust again and adsorb this moment, thereby improve the precision to dust content detection.
Optionally, one end of the driving rod, which is far away from the filter membrane bin, is fixedly connected with a cleaning ring, the cleaning ring is in sliding butt joint with the inner wall of the detection cavity, and the cleaning ring can be in butt joint with the butt joint block.
Through adopting above-mentioned technical scheme, when taking off the dust-measuring filter membrane back and cleaning the detection chamber, positive and negative rotation actuating lever drives transfer line and filter membrane storehouse and makes a round trip to slide in detecting the intracavity, and then drives the clean ring and make a round trip to slide the butt in detecting the intracavity wall, and updraft ventilator reversal is simultaneously bloied to blow off the clean dust of clean ring from the sampling head, realize detecting the self-cleaning of intracavity, thereby reduce the pollution to new dust-measuring filter membrane.
Optionally, the air pumping device comprises a micro air pump arranged between the detection cavity and the digital display host, and an air inlet of the micro air pump is communicated with the detection cavity and an air outlet of the micro air pump penetrates through the side wall of the machine body.
Through adopting above-mentioned technical scheme, when adsorbing the dust to the survey dirt filter membrane on, miniature air pump starts the external air from the suction of sampling head for the air that contains the dust gets into behind the survey dirt filter membrane and detects the chamber, blows off from the gas outlet of miniature air pump again, so that the dust in the external air adsorbs on the survey dirt filter membrane, thereby is convenient for detect dust content in the air.
In summary, the present application includes at least one of the following beneficial technical effects:
by arranging the detection cavity, the first gravity sensor and the second gravity sensor are used for measuring the weight of the dust measurement filter membrane before dust collection and after dust collection, and the data of secondary weight measurement is output to the digital display host computer to be processed to obtain the dust concentration in the air, so that the dust concentration can be directly obtained on site in a workplace without being brought back to a laboratory for positioning analysis, and the dust content in the air can be directly measured on site in the workplace conveniently;
through the arrangement of the driving rod, the driving rod and the filter membrane bin are driven to slide back and forth between the first gravity sensor and the second gravity sensor by the rotation of the driving rod through the meshing of the gear and the rack, so that the filter membrane bin and the dust measuring filter membrane are driven to slide conveniently;
by arranging the rotating shaft and the rotating groove, the rotating shaft is positioned in the sampling head when the filter membrane bin is positioned on the second gravity sensor, so that the rotating shaft can be separated from the rotating groove by moving upwards after the dust-measuring filter membrane rotates to be horizontal, and the dust-measuring filter membrane can be conveniently taken down from the filter membrane bin for replacement;
through the arrangement of the abutting block and the suction piece, the dust measuring filter membrane is turned over by one hundred eighty degrees after abutting against the abutting block, and one surface originally facing the detection cavity faces the sampling head, so that dust can be conveniently sucked on the surface of the dust measuring filter membrane facing the detection cavity, and the dust suction accuracy of the dust measuring filter membrane is improved;
through setting up butt joint pole and shutoff piece for in the filter membrane storehouse was in the enclosure space that detects the chamber when not getting into in the sampling head, just with external contact after the filter membrane storehouse got into in the sampling head, carry out the dust again and adsorb this moment, thereby improve the precision to dust content detection.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
FIG. 2 is a schematic cross-sectional view of a detection chamber according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram for showing a transmission rod according to an embodiment of the present application.
Fig. 4 is an enlarged schematic view of a portion a in fig. 2.
Description of reference numerals: 1. a body; 11. a handle; 12. a sampling head; 13. a detection chamber; 131. a first gravity sensor; 132. a second gravity sensor; 133. a butting block; 14. a filter membrane bin; 141. dust measurement filter membrane; 142. a rotating shaft; 143. a rotating groove; 15. a suction member; 151. a magnetic sheet; 152. a magnetic block; 16. a plugging sheet; 2. an air extraction device; 3. a digital display host; 4. a transmission device; 41. a transmission rod; 42. a rack; 43. a gear; 44. a drive rod; 45. cleaning the ring; 46. a connecting rod is abutted.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses be applied to occupational health short-term test instrument.
Referring to fig. 1, quick detecting instrument includes organism 1, fixed connection is in the grab handle 11 of organism 1 below, and the one end of organism 1 can be dismantled and is connected with sampling head 12, and sampling head 12 threaded connection is on organism 1, and the one end fixedly connected with air exhaust device 2 of sampling head 12 is kept away from to organism 1, and air exhaust device 2 keeps away from the one end fixedly connected with digital display host computer 3 of sampling head 12, and air exhaust device 2 is miniature air pump, and miniature air pump and 3 electricity of digital display host computer are connected.
Referring to fig. 2, a detection chamber 13 is formed in a section of the body 1 between the sampling head 12 and the air extractor 2, one end of the detection chamber 13 is communicated with the sampling head 12, the other end of the detection chamber is communicated with an air inlet of the miniature air pump, and an air outlet of the miniature air pump penetrates through the top wall of the body 1, so that the miniature air pump can suck outside air into the detection chamber 13 from the sampling head 12 and then discharge the outside air from the top wall of the body 1 after being started.
Referring to fig. 2, a filter membrane chamber 14 is slidably mounted in the detection chamber 13, and a dust detection filter membrane 141 for adsorbing dust is rotatably connected in the filter membrane chamber 14. The detection cavity 13 is internally provided with a non-dust-absorption weight measuring position close to the digital display host and a post-dust-absorption weight measuring position close to the sampling head 12, and the detection cavity 13 is internally provided with a transmission device 4 for driving the filter membrane cabin 14 to slide from the non-dust-absorption weight measuring position to the post-dust-absorption weight measuring position.
Referring to fig. 2, a first gravity sensor 131 and a second gravity sensor 132 which are positioned below the filter membrane chamber 14 are fixedly connected in the detection chamber 13 of the machine body 1, the first gravity sensor 131 is positioned at a position where dust is not sucked and weight is measured, and the second gravity sensor 132 is positioned at a position where weight is measured after dust is sucked. The filter membrane bin 14 which does not absorb dust and the dust measuring filter membrane 141 are subjected to weight measurement through the first gravity sensor 131, so that the first weight measurement data are transmitted to the digital display host 3; the second gravity sensor 132 measures the weight of the filter membrane bin 14 and the dust measuring filter membrane 141 after dust adsorption, so as to transmit the data of the re-measurement to the digital display host 3.
Referring to fig. 2, the digital display main unit 3 includes a flow sensor for detecting the air flow of the micro air pump, a controller for processing the secondary weight data, and a display connected to the main unit 1 for displaying the dust concentration, and is electrically connected to a timer. After the weight of the non-dust-measuring filter membrane cabin 14 and the dust-measuring filter membrane 141 is detected, the conveying device 4 conveys the filter membrane cabin 14 and the dust-measuring filter membrane 141 to the second gravity sensor 132. Then the micro air pump is started, and simultaneously the timer starts to time, and the external air containing dust is pumped into the sampling head 12 and passes through the measuring filter membrane. And stopping air suction until the preset time is reached, stopping timing by the timer, measuring the weight of the filter membrane bin 14 and the dust measuring filter membrane 141 after dust adsorption by the second gravity sensor 132 again, and transmitting the measured weight data to the digital display host 3. The controller in the digital display main machine 3 processes the measured data, the measured data is obtained through a formula C = (M2-M1)/Qt, and the dust concentration is obtained by comparing the weight of the dust pumped in the designated time with the air flow and is displayed on a display.
Referring to fig. 2 and 3, the filter membrane chamber 14 is semicircular, and the filter membrane chamber 14 can slide back and forth along the air suction device 2 to the sampling head 12 in the detection cavity 13. The dust-measuring filter membrane 141 is circular, the two sides of the dust-measuring filter membrane 141 are fixedly connected with the rotating shafts 142, the top wall of the filter membrane chamber 14 is provided with a rotating groove 143 for the rotating shafts 142 to be clamped downwards, and the rotating shafts 142 rotate in the rotating groove 143, so that the dust-measuring filter membrane 141 and the filter membrane chamber 14 can rotate around the rotating shafts 142. When the filter cartridge 14 is located on the second gravity sensor 132, the rotating shaft 142 is separated from the detection chamber 13 and located in the sampling head 12, so that the dust-detecting filter 141 can be taken out of the filter cartridge 14 after the sampling head 12 is detached.
Referring to fig. 2 and 4, the upper end of the dust-measuring filter membrane 141 is heavier than the lower end, the bottom of the dust-measuring filter membrane 141 is provided with an attraction piece 15 which attracts the filter membrane chamber 14 and keeps a vertical state, the attraction piece 15 comprises a magnetic sheet 151 embedded in the bottom wall of the dust-measuring filter membrane 141 and a magnetic block 152 fixedly connected in the filter membrane chamber 14 and attracting the magnetic sheet 151, and the magnetic sheet 151 and the magnetic block 152 are both made of magnetic materials so as to attract the magnetic block 152 and the magnetic sheet 151 to enable the heavier end of the dust-measuring filter membrane 141 to be located above the filter membrane chamber 14.
Referring to fig. 2 and 3, the transmission device 4 includes transmission rods 41 sliding on two sides of the filter membrane chamber 14 in the detection chamber 13, and a driving member mounted on the machine body 1 for driving the transmission rods 41 to slide along the length direction of the machine body 1, wherein one end of the transmission rod 41 far away from the micro air pump is fixedly connected to the side wall of the filter membrane chamber 14, and one end of the transmission rod 41 far away from the filter membrane chamber 14 is fixedly connected to a cleaning ring 45. The cleaning ring 45 is in sliding contact with the inner wall of the detection cavity 13 to clean the inner wall of the detection cavity 13.
Referring to fig. 2 and 3, the driving member includes a rack 42 fixedly connected to a side wall of one of the driving rods 44, a gear 43 rotatably connected to the inside of the machine body 1 and engaged with the rack 42, and the driving rod 44 coaxially connected to the gear 43 and penetrating through a side wall of the machine body 1, wherein the gear 43 extends into the detection cavity 13, and the gear 43 drives the rack 42 and the driving rod 41 to slide in the detection cavity 13 by the rotation of the driving rod 44, thereby realizing the second gravity sensor 132 in which the filter membrane chamber 14 and the dust measuring filter membrane 141 are moved from the first gravity sensor 131.
Referring to fig. 2, a contact block 133 is fixedly connected to the top wall of the detection chamber 13 close to the sampling head 12, the second gravity sensor 132 is located below the contact block 133 and extends into the sampling head 12 to measure the weight of the filter membrane chamber 14 and the dust measuring filter membrane 141, the filter membrane chamber 14 slides below the contact block 133, and the upper ends of the contact block 133 and the dust measuring filter membrane 141 are in contact with each other. The side wall of the machine body 1 in the sampling head 12 is hinged with a blocking piece 16, the gravity of the blocking piece 16 is smaller than the downward overturning force of the heavier upper end of the dust measuring filter membrane 141, the hinged shaft of the blocking piece 16 is positioned above the sliding path of the dust measuring filter membrane 141, and the hinged shaft of the blocking piece 16 extends along the direction vertical to the sliding direction of the dust measuring filter membrane 141.
Referring to fig. 2 and 3, the filter membrane chamber 14 is fixedly connected with the abutting rods 46 which are in one-to-one correspondence with the transmission rods 41 on the side walls back to the transmission rods 41, the abutting blocks 133 are positioned on two sides of the dust measuring filter membrane 141, and the abutting rods 46 are used for abutting the opening of the plugging sheet 16 and opening the prize detection cavity 13.
Referring to fig. 2 and 3, when the driving rod 41 drives the filter membrane cabin 14 and the dust measuring filter membrane 141 to slide to the second gravity sensor 132, the upper end of the dust measuring filter membrane 141 abuts against the abutting block 133, and the abutting block 133 abuts against the upper end of the dust measuring filter membrane 141 to turn over, so that the lower end of the dust measuring filter membrane 141 and the filter membrane cabin 14 rotate away. And further the magnetic sheet 151 and the magnetic block 152 are separated from each other, the heavier upper end of the dust measuring filter membrane 141 is turned over to the lower end, and the dust measuring filter membrane 141 is turned over and then abutted to the plugging sheet 16, so that the plugging sheet 16 which is abutted by the abutting rod 46 is abutted by the dust measuring filter membrane 141. Because the gravity of shutoff piece 16 is less than the heavier power that the upper end overturned downwards of dust-measuring filter membrane 141 for the roof in the sampling head 12 is pasted tightly to butt shutoff piece 16 after the upset of dust-measuring filter membrane 141, in order to detect chamber 13 and sampling head 12 intercommunication, thereby realize that dust-measuring filter membrane 141 does not get into in the sampling head 12, detect the intracavity 13 internal seal, when dust-measuring filter membrane 141 gets into in the sampling head 12, it is linked together to detect chamber 13 and sampling head 12, so that outside air and dust get into from the sampling head 12 and pass through dust-measuring filter membrane 141.
The implementation principle of the instrument for quickly detecting occupational health in the embodiment of the application is as follows: when the dust concentration in the air is directly measured in a workplace, the filter membrane bin 14 and the dust measuring filter membrane 141 are located at the non-dust-absorption weight measuring position, the first gravity sensor 131 measures the weight of the filter membrane bin 14, and the weight measuring data are transmitted to the digital display host. Then, the driving rod 44 is rotated to drive the driving rod 41, the filter membrane chamber 14 and the dust measuring filter membrane 141 to slide towards the sampling head 12 until the abutting block 133 abuts against the upper end of the dust measuring filter membrane 141, so that the magnetic sheet 151 and the magnetic block 152 are separated, meanwhile, the abutting rod 46 abuts against the unblocking sheet 16, and the upper end of the dust measuring filter membrane 141 is turned downwards due to heavier gravity. The dust-measuring filter membrane 141 is positioned on one side of the abutting block 133 facing the sampling head 12 after being overturned, and meanwhile, the dust-measuring filter membrane 141 abuts against the blocking piece 16 to continue to rotate upwards after being overturned until the dust-measuring filter membrane 141 abuts against the blocking piece 16 to the top wall in the sampling head 12, so that the detection cavity 13 is communicated with the sampling head 12. The filter cartridge 14 and the dust measuring filter 141 are now located in the sampling head 12, and the filter cartridge 14 is located on the second gravity sensor 132 in the post-dust-suction weight position. Then the timer and the micro air pump are started, the flow sensor of the digital display host 3 detects the flow of the air extracted by the micro air pump, and the external air and the dust are sucked from the sampling head 12, so that the dust is adsorbed on the dust measuring filter membrane 141. And after the timer reaches the time, the micro air pump stops, the second gravity sensor 132 outputs the gravity data of the dust-adsorbing filter membrane bin 14 and the dust measuring filter membrane 141 to the digital display host 3, and the digital display host 3 combines the data of the flow sensor, the first gravity sensor 131, the second gravity sensor 132 and the timer to obtain the dust concentration and displays the dust concentration on the display, so that the dust concentration content in the air can be directly measured on the site of a workplace.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a be applied to occupational health short-term test instrument which characterized in that: comprises a machine body (1), a sampling head (12) detachably arranged at one end of the machine body (1), and a digital display host (3) arranged at one end of the machine body (1) far away from the sampling head (12), wherein a detection cavity (13) communicated with the sampling head (12) is formed in the machine body (1), a filter membrane cabin (14) is arranged in the detection cavity (13) in a sliding manner, a dust measurement filter membrane (141) for absorbing dust is arranged in the filter membrane cabin (14), a non-dust-absorption weight measurement position close to the digital display host (3) and a dust-absorption back weight measurement position close to the sampling head (12) are arranged in the detection cavity (13), a transmission device (4) for driving the filter membrane cabin (14) to slide from the non-dust-absorption weight measurement position to the dust-absorption back weight measurement position is arranged in the detection cavity (13), and an air extractor (2) communicated with the detection cavity (13) is arranged towards one side of the sampling head (12) of the digital display host (3), air exhaust device (2) are used for inhaling external air from sampling head (12) and pass through dust measurement filter membrane (141), the weight position is measured to the dust absorption of not having in organism (1) is provided with first gravity sensor (131), is provided with second gravity sensor (132) at the weight position of measuring after the dust absorption, first gravity sensor (131) are used for carrying out the weight measurement to the filter membrane storehouse (14) of not adsorbing the dust and export first weight measurement data to digital display host computer (3), second gravity sensor (132) are used for carrying out the weight measurement and export second weight measurement data to digital display host computer (3) to filter membrane storehouse (14) after adsorbing the dust, digital display host computer (3) are used for handling first weight measurement data and second weight measurement data in order to show the dust concentration in the air.
2. The instrument for the rapid detection of occupational health according to claim 1, wherein: the transmission device (4) comprises transmission rods (41) which slide on two sides of a filter membrane bin (14) in the detection cavity (13) and a driving piece which is arranged on the machine body (1) and drives the transmission rods (41) to slide, wherein one end, close to the sampling head (12), of each transmission rod (41) is arranged on the filter membrane bin (14).
3. The instrument for the rapid detection of occupational health according to claim 2, wherein: the driving part comprises a rack (42) fixedly connected to the side wall of the transmission rod (41), a gear (43) rotatably connected in the machine body (1) and meshed with the rack (42), and a driving rod (44) coaxially connected to the gear (43) and penetrating out of the side wall of the machine body (1).
4. The instrument for the rapid detection of occupational health according to claim 2, wherein: the both sides fixedly connected with pivot (142) of dust measurement filter membrane (141), supply pivot (142) card to go into and pivoted rotation groove (143) have been seted up to filter membrane storehouse (14) roof, when pivot (142) are located sampling head (12), filter membrane storehouse (14) are located on second gravity sensor (132).
5. The instrument for the rapid detection of occupational health according to claim 2, wherein: fixedly connected with butt joint piece (133) on being close to the roof of sampling head (12) in detection chamber (13), filter membrane storehouse (14) slide in butt joint piece (133) below, the bottom of surveying dirt filter membrane (141) is equipped with attracts piece (15) of inhaling mutually with filter membrane storehouse (14), butt joint piece (133) are used for the upper end of butt dust-measuring filter membrane (141) to drive dust-measuring filter membrane (141) lower extreme and rotate away from filter membrane storehouse (14), the gravity of dust-measuring filter membrane (141) upper end is greater than the gravity of lower extreme.
6. The instrument for the rapid detection of occupational health according to claim 5, wherein: the attraction piece (15) comprises a magnetic sheet (151) arranged at the bottom of the dust measurement filter membrane (141) and a magnetic block (152) arranged in the filter membrane bin (14) and attracted with the magnetic sheet (151), and the magnetic block (152) is used for attracting the magnetic sheet (151) to enable the upper end of the dust measurement filter membrane (141) with larger gravity to be abutted against the abutting block (133).
7. The instrument for the rapid detection of occupational health according to claim 2, wherein: filter membrane storehouse (14) are located butt joint pole (46) of dust measuring filter membrane (141) both sides towards one side fixedly connected with in sampling head (12), it has shutoff piece (16) that will detect chamber (13) opening shutoff to lie in butt joint piece (133) on organism (1) and articulate towards one side of sampling head (12), butt joint pole (46) are used for butt shutoff piece (16) to change from filter membrane storehouse (14) to make dust measuring filter membrane (141) butt shutoff piece (16) after the upset paste tightly to the roof in sampling head (12).
8. The instrument for the rapid detection of occupational health according to claim 3, wherein: one end, far away from the filter membrane bin (14), of the driving rod (44) is fixedly connected with a cleaning ring (45), the cleaning ring (45) is in sliding abutting connection with the inner wall of the detection cavity (13), and the cleaning ring (45) can be in abutting connection with the abutting connection block (133).
9. The instrument for the rapid detection of occupational health according to claim 1, wherein: the air pumping device (2) comprises a miniature air pump arranged between the detection cavity (13) and the digital display host (3), and an air inlet of the miniature air pump is communicated with the detection cavity (13) and an air outlet of the miniature air pump penetrates through the side wall of the machine body (1).
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| CN202111236739.9A CN113959891B (en) | 2021-10-23 | 2021-10-23 | Be applied to occupational health short-term test instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236739.9A CN113959891B (en) | 2021-10-23 | 2021-10-23 | Be applied to occupational health short-term test instrument |
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| CN113959891B CN113959891B (en) | 2024-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901523A (en) * | 2022-12-29 | 2023-04-04 | 江苏环保产业技术研究院股份公司 | Industrial park air quality detection device and detection method |
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| CN115901523A (en) * | 2022-12-29 | 2023-04-04 | 江苏环保产业技术研究院股份公司 | Industrial park air quality detection device and detection method |
| CN115901523B (en) * | 2022-12-29 | 2024-02-23 | 江苏环保产业技术研究院股份公司 | Industrial park air quality detection device and detection method |
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Address after: 318000 floors 1, 8 and 9, No. 201, east section of Shifu Avenue, Haimen street, Jiaojiang District, Taizhou City, Zhejiang Province (self declaration) Applicant after: Zhejiang bilif Testing Technology Co.,Ltd. Address before: 318000 8th Floor, 201, Eastern Section of Shifu Avenue, Taizhou City, Zhejiang Province Applicant before: Zhejiang bilif Testing Technology Co.,Ltd. |
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