CN114414445B - Be used for indoor building materials air detection device - Google Patents
Be used for indoor building materials air detection device Download PDFInfo
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- CN114414445B CN114414445B CN202111641377.1A CN202111641377A CN114414445B CN 114414445 B CN114414445 B CN 114414445B CN 202111641377 A CN202111641377 A CN 202111641377A CN 114414445 B CN114414445 B CN 114414445B
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- 239000004566 building material Substances 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000005303 weighing Methods 0.000 claims abstract description 37
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 230000001502 supplementing effect Effects 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000000151 deposition Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration 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
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- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an air detection device for indoor building materials, which comprises a base, a driving device, a gas collecting device, a compression device, a weighing device and a power supplementing device, wherein the base comprises an upper platform and a lower platform, the driving device comprises a chute shaft, a guide shaft and a sliding device, the chute shaft and the guide shaft are arranged on the upper platform, the sliding device is arranged on the chute shaft and the guide shaft in a sliding manner, a guide sliding pin is arranged in a sliding plate and is matched with the chute shaft, and the sliding plate can slide up and down when the chute shaft rotates. The invention provides an indoor building material air detection device, which is more accurate than an electronic device in that air at different positions in an indoor space is extracted, the air is filtered through filter paper, and the PM2.5 content in the air is obtained by weighing the front and rear masses of the filter paper.
Description
Technical Field
The invention relates to the technical field of air detection, in particular to an air detection device for indoor building materials.
Background
The building materials are obtained by mechanical processing, various processing procedures are used in the processing process, the building materials contain a lot of tiny particles, after entering a decorated house, the tiny particles attached to the building materials are diffused into the air, so that the indoor air quality is affected, and particularly the PM2.5 content in the air is affected, but the devices for detecting the air which are popular in the market are almost all electronic and are developed through the light scattering principle, but the detection devices are affected by factors such as the fluidity and the humidity of the air, and have great errors when the real content cannot be accurately reflected.
Disclosure of Invention
The invention provides an air detection device for indoor building materials, which aims at the defects in the prior art. In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides an be used for indoor building materials air detection device, includes base, drive arrangement, gas collecting device, compression device, weighing device and power replenishing device, the base includes upper platform and lower platform, drive arrangement includes slide shaft, guiding axle and slider, and slide shaft and guiding axle set up on the upper platform, slider slides and sets up on slide shaft and guiding axle, be provided with the direction slide pin in the sliding plate, its and slide shaft cooperation setting, when the slide shaft rotates, the sliding plate can slide from top to bottom.
The gas collecting device comprises an air cylinder, an upper piston ring and a lower piston ring, wherein the upper piston ring and the lower piston ring are both arranged in the air cylinder in a sliding manner, a one-way ventilation device is arranged on the upper piston ring, the upper piston ring is further provided with a piston device, the piston device comprises a piston sleeve and a piston rod, the bottom end of the piston sleeve is arranged on the upper piston ring, the upper end of the piston sleeve is arranged on a sliding plate in a sliding manner, the piston rod is elastically locked on the sliding plate, the piston rod is arranged in the piston sleeve in a sliding manner, a first limiting block is arranged at the top end of the piston rod, a linkage shaft is arranged on the lower piston ring, the linkage shaft is arranged on the upper piston ring and the sliding plate in a sliding manner, and a second limiting block and a third limiting block are arranged on the linkage shaft and are respectively arranged above and below the sliding plate.
The compression device comprises a compression barrel, a compression piston and a guide pipe, wherein the compression piston is arranged in the compression barrel in a sliding manner, a unidirectional air inlet is formed in the compression piston, an air outlet is formed in the bottom of the compression barrel, the guide pipe is communicated with the unidirectional air inlet and a unidirectional ventilation device on an upper piston ring, a jacking rod is arranged on the compression piston, the top end of the jacking rod is located below a sliding plate, a weighing device is located below the air outlet, the weighing device comprises a precise weighing device, filter paper and an automatic lifting device, the automatic lifting device lifts the filter paper upwards to plug the air outlet, and the filter paper is arranged on the precise weighing device in a downward retracting manner.
The method has the advantages that air with a fixed volume is pumped in the air cylinder, then the air in the air cylinder is injected into the air compressing barrel, the air flows out from the air outlet through the air compressing piston, filter paper is arranged at the position of the air outlet, PM2.5 is remained on the filter paper, the content of PM2.5 in the air is obtained through the filter paper, and the conclusion obtained by the method is most accurate.
In the above scheme, preferably, the gas collecting devices are provided in plurality, and the one-way ventilation devices on the lower piston ring are connected with gas inlet devices at different positions.
The air collecting device has the beneficial effects that air at different positions can be collected, so that the final value is an average value of all places and is more accurate.
In the above scheme, preferably, the driving device further comprises a spiral spring, a rotating shell and a first electromagnet, wherein the sliding groove shaft rotates and is arranged on the upper platform in an up-down limiting mode, the rotating shell is arranged on the sliding groove shaft in a rotating mode, the spiral spring is arranged in the rotating shell, the inner end of the spiral spring is arranged on the sliding groove shaft, the outer end of the spiral spring is arranged on the rotating shell, a first gear is arranged on the sliding groove shaft, the first electromagnet is arranged on the upper platform, and a locking tongue is arranged at the front end of the first electromagnet and can lock the first gear so that the first gear does not rotate.
The spiral spring type sliding groove shaft has the advantages that the sliding groove shaft does not rotate in normal times, and when the spiral spring type sliding groove shaft needs to be used, the spiral spring type sliding groove shaft is powered, so that the spiral spring type sliding groove shaft rotates, and data are measured.
In the above scheme, preferably, the power supplementing device comprises a door, a stay wire and a rotating wheel, wherein the rotating wheel is arranged on the rotating shell in a unidirectional rotation mode, the stay wire is connected to the rotating wheel and the door, and the door is opened to drive the rotating wheel to rotate so as to drive the rotating shell to rotate.
The spiral spring has the beneficial effects that the spiral spring is subjected to power accumulation through opening the door each time.
In the above scheme, preferably, the power supplementing device further comprises a torsion spring, one end of the torsion spring is arranged on the rotating wheel, and the other end of the torsion spring is arranged on the lower platform.
The door has the beneficial effects that when the door is closed, the pulled wire can be automatically tightened, and the door is automatically reset, so that the next use is convenient.
In the above aspect, preferably, a first elastic member is disposed in the sliding plate, a locking ball is abutted against the front end of the sliding plate, the locking ball is abutted against the piston sleeve, and a groove is formed in the upper end surface of the piston sleeve.
The piston sleeve is elastically locked by the locking ball, and the sliding plate can drive the piston sleeve to slide upwards together in an initial state, and can be automatically separated when the upper piston ring is propped against the upper end surface of the inflator.
In the above scheme, preferably, weighing device still includes storage vat, electric putter and sliding table, the storage vat is used for depositing filter paper, and it sets up on the sliding table, electric putter sets up on the sliding table, and its telescopic link front end is provided with the flitch, the discharge gate has been seted up in the penetration of storage vat bottom, and the flitch slides and sets up in the discharge gate, promotes filter paper to the smart volume top.
The weighing device has the advantages that the weight of the filter paper before being unfiltered can be weighed each time before the filter paper is used, the filter paper is weighed again after the filter paper is filtered, the obtained value is more accurate, the influence on the accuracy of the value due to the quality fluctuation of the filter paper is avoided, the weighing device can be recycled, and when new filter paper is pushed, the new filter paper ejects the old filter paper out of the weighing device.
In the above solution, preferably, the upper plane of the sliding table is higher than the upper plane of the precision scale, and the height difference is smaller than the thickness of the filter paper.
The novel filter paper weighing scale has the beneficial effects that the novel filter paper can better enter the precise weighing scale, and the novel filter paper can be propped against the old filter paper.
In the above aspect, preferably, the piston device further includes a second elastic member slidably disposed on the piston rod and located in the piston sleeve, wherein the lower end is abutted against the piston rod, and the upper end is abutted against the piston sleeve.
The piston rod has the beneficial effects that the piston rod can automatically fall back after being used.
The beneficial effects of the invention are as follows: the invention provides an indoor building material air detection device, which is more accurate than an electronic device in that air at different positions in an indoor space is extracted, the air is filtered through filter paper, and the PM2.5 content in the air is obtained by weighing the front and rear masses of the filter paper.
Drawings
FIG. 1 is a schematic view of a power-assist device door of the present invention.
FIG. 2 is a schematic diagram of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
FIG. 4 is a cross-sectional view of a weighing apparatus of the present invention.
FIG. 5 is a schematic view of a power replenishment device according to the present invention.
Fig. 6 is a cross-sectional view of the present invention.
Fig. 7 is a cross-sectional view of a gas collecting device of the present invention.
Fig. 8 is a schematic view of a guide slide pin according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description: referring to fig. 1-8, an air detection device for indoor building materials comprises a driving device 1, a gas collecting device 2, a compression device 3, a weighing device 4, a power supplementing device 5, a base 6 and an air inlet device 7, wherein the base 6 comprises an upper platform 61 and a lower platform 62, the driving device 1 comprises a chute shaft 11, a guide shaft 12, a sliding plate 13, a scroll spring 14, a rotating shell 15 and a first electromagnet 16, the chute shaft 11 rotates and is arranged on the upper platform 61 in an up-down limiting way, a circulating chute 112 is arranged on the chute shaft 11, a guide sliding pin 133 is arranged in the sliding plate 13 in a rotating way, and is arranged on the circulating chute 112 in a guiding sliding way, the guide shaft 12 is arranged on the upper platform 61, the sliding plate 13 is arranged on the guide shaft 12 in a sliding way, the rotating shell 15 is arranged at the lower end of the chute shaft 11 in a rotating way, the scroll spring 14 is located in the cavity of the rotating shell 15, the outer end of the scroll spring 14 is arranged on the inner wall of the cavity of the rotating shell 15, the inner end of the scroll spring is arranged on the sliding groove shaft 11, the lower end of the rotating shell 15 is also provided with the rotating shaft 151, the lower end of the rotating shell is unidirectionally rotated and arranged on the lower platform 62, the sliding groove shaft 11 is provided with the first gear 111, the first electromagnet 16 is arranged on the upper platform 61, the front end of the telescopic rod is provided with the locking tongue 161, the locking tongue 161 can lock the first gear 111, the power supplementing device 5 comprises the door 51, the stay wire 52, the rotating wheel 53 and the torsion spring 54, the stay wire 53 is unidirectionally rotated and arranged on the rotating shaft 151, the stay wire 52 is connected to the rotating wheel 53 and the door 51, the door 51 is opened to drive the rotating wheel 53 to rotate, thereby driving the rotating shell 15 to rotate, and the torsion spring 54 is provided with one end on the rotating wheel 53 and the other end on the lower platform 62.
In the normal state, the first electromagnet 16 is in an extended state, the locking tongue 161 at the front end of the first electromagnet is located in the rotation stroke of the first gear 111, so that the sliding groove shaft 11 is locked, at the moment, the door 51 is opened, the pull wire 52 is pulled out from the rotating wheel 53, the rotating wheel 53 rotates in the pulling process, the rotating wheel 53 is arranged on the rotating shaft 151 in a unidirectional rotation mode, so that the rotating wheel 53 drives the rotating shell 15 to rotate when rotating, the spiral spring 14 is stirred tightly, elastic potential energy is accumulated, the rotating wheel 53 is reversed under the action of the torsion spring 54 when closing the door, the pull wire pulled out when opening the door is tightened, the pull wire returns to the original state, and the rotating wheel 53 rotates relative to the rotating shaft 151 when rotating in the opposite direction, so that the spiral spring 14 is accumulated once without opening the door.
When the first electromagnet 16 is required to work, the locking tongue 161 is retracted to unlock the first gear 111, so that the first gear 111 rotates under the action of the spiral spring 14, the sliding plate 13 only slides up and down under the action of the sliding groove shaft 11 and the guide shaft 12, and the guide sliding pin 133 therein slides along the circulating sliding groove 112 of the sliding groove shaft 11, so that the sliding plate 13 is driven to slide up and down on the sliding groove shaft 11.
The gas collecting device 2 comprises a gas cylinder 21, an upper piston ring 22, a lower piston ring 23, a one-way ventilation device 24, a piston device 25 and a linkage shaft 26, wherein the upper piston ring 22 and the lower piston ring 23 are arranged in the gas cylinder 21 in a sliding way, the one-way ventilation device 24 is arranged on the upper piston ring 22 and the lower piston ring 23, the piston device 25 comprises a piston sleeve 251, a piston rod 252 and a second elastic piece 254, the bottom end of the piston sleeve 251 is arranged on the upper piston ring 22, the piston rod 252 is arranged in the piston sleeve 251 in a sliding way, the second elastic piece 254 is arranged on the piston rod 252 in a sliding way, the lower end of the piston sleeve 251 is in contact with the piston rod 252, the upper end of the piston sleeve 251 is in contact with the piston sleeve 251, the upper end of the piston sleeve 251 is in a sliding way arranged on the sliding plate 13, the upper end surface of the piston sleeve 251 is provided with a groove 2511, the front end of the sliding plate 13 is in contact with a locking ball 132, the locking ball 132 is in contact with the groove 1, and therefore the sliding plate 13 can elastically lock the piston sleeve 251, the lower end of the piston sleeve 252 is in a sliding way, the lower end of the piston sleeve is in contact with the piston sleeve 23 is arranged on the upper piston sleeve 251, and the upper piston ring 23 is in a sliding plate and the sliding plate 23.
The sliding groove shaft 11 rotates to drive the sliding plate 13 to slide upwards and drive the piston sleeve 251 to slide upwards, so as to drive the upper piston ring 22 to slide upwards, the space between the upper piston ring 22 and the lower piston ring 23 is enlarged, air enters between the upper piston ring 22 and the lower piston ring 23 from the one-way ventilation device 24 on the lower piston ring 23, when the upper piston ring 22 moves up to the uppermost end, the whole pipe of air is completely extracted, and the space between the upper piston ring 22 and the lower piston ring 23 is constant, so that the volume of air extracted each time is also constant.
The top end of the piston rod 252 is provided with a first limiting block 253, the linkage shaft 26 is provided with a second limiting block 261 and a third limiting block 262, the second limiting block 261 and the third limiting block 262 are respectively located above and below the sliding plate 13, and the piston sleeve 251 is provided with a fourth limiting block 2512.
When the upper piston ring 22 moves up to the uppermost end, the sliding plate 13 continues to slide upwards, so that the sliding plate 13 is separated from the piston sleeve 251, the upper end surface of the sliding plate 13 is propped against the first limiting block 253, the piston rod 252 is driven to slide upwards, the second elastic piece 254 is compressed, when the sliding plate 13 is separated from the piston sleeve 251, the upper piston ring 22 can still be kept at the right position, and the sliding plate 13 is propped against the first limiting block 253 and also is propped against the second limiting block 261, the linkage shaft 26 is driven to slide upwards, so that the lower piston ring 23 slides upwards, and air is discharged from the unidirectional ventilation device 24 of the upper piston ring 22.
The compression device 3 comprises a compression barrel 31, a compression piston 32 and a guide pipe 33, the compression piston 32 is arranged in the compression barrel 31 in a sliding manner, a one-way air inlet 321 is formed in the compression piston 32, an air outlet 311 is formed in the bottom of the compression barrel 31, the guide pipe 33 is communicated with the one-way air inlet 321 and the one-way air breather 24 on the upper piston ring 22, a top contact rod 322 is arranged on the compression piston 32, the top end of the top contact rod is located below the sliding plate 13, the air inlet device 7 is arranged at different indoor positions, the air collecting devices 2 are arranged in a plurality and are matched with the sliding plate 13, and the one-way air breather 24 on the lower piston ring 23 on the top contact rod is connected with the air inlet device 7 at different positions.
The sliding plate 13 moves upward to drive the plurality of upper piston rings 22 to move upward together, air at different positions is pumped between the plurality of upper piston rings 22 and the lower piston rings 23 through the air inlet devices 7 at different positions, the pumped air is injected into the air compressing barrel 31 through the guide pipe 33 to enable the air compressing piston 32 to slide upward, the top contact rods 322 on the air compressing piston 32 move upward together when the sliding plate 13 moves upward and are always positioned below the sliding plate 13, and the sliding plate 13 starts to slide downward after moving upward to the highest point due to the fact that the sliding grooves on the sliding groove shaft 11 are circulation sliding grooves, in the downward sliding process, the top contact rods 322 are pressed to slide downward, so that the air in the air compressing barrel 31 is discharged outwards through the air outlet 311 at the bottom of the air compressing barrel, in the downward sliding plate 13 moves downward to be propped against the third limiting block 262 and the fourth limiting block 2512, and the upper piston rings 22 and the lower piston rings 23 are driven to move downward at the same time, and the initial position is returned.
The weighing device 4 comprises a precise weighing scale 41, filter paper 42, an automatic lifting device 43, a storage vat 44, an electric push rod 45 and a sliding table 47, wherein the storage vat 44 is used for storing the filter paper 42, the filter paper 42 is arranged on the sliding table 47, the electric push rod 45 is arranged on the sliding table 47, a pushing plate 46 is arranged at the front end of a telescopic rod of the electric push rod, a discharge hole 441 is formed in the bottom end of the storage vat 44 in a penetrating manner, the pushing plate 46 is slidably arranged in the discharge hole 441 to push the filter paper 42 to the position above the precise weighing scale 41, the upper plane of the sliding table 47 is higher than the upper plane of the precise weighing scale 41, the height difference is smaller than the thickness of the filter paper 42, the precise weighing scale 41 and the automatic lifting device 43 are both arranged on the sliding table 47 and are arranged below an air outlet 311, the automatic lifting device 43 can lift up to block the filter paper 42 on the precise weighing scale 41, and when the filter paper 42 is retracted downwards, the upper plane of the filter paper 42 is lower than the upper plane of the precise weighing scale 41, and the automatic lifting device 43 is in a ring-shaped design and is provided with air holes around the automatic lifting device 43.
When the first electromagnet 16 is retracted, the electric push rod 45 is pushed forward, the push plate 46 at the front end of the electric push rod slides forward to drive the new filter paper 42 in the storage vat 44 to slide forward, so that the new filter paper 42 falls on the precision scale 41, the new filter paper 42 is propped against the used old filter paper 42 in the process of entering the precision scale 41, the new filter paper 42 is removed from the precision scale 41, after the new filter paper falls into the precision scale 41, the precision scale 41 firstly carries out initial value weighing on the filter paper 42, the automatic lifting device 43 starts to work, the automatic lifting device is lifted upwards, the filter paper 42 is propped against the air outlet 311, and when the filter paper 42 is propped against the air outlet 311, the upper piston ring 22 does not go up to the highest point, so when the quantitative air of the air collecting device 2 enters the air compressing barrel 31, the filter paper 42 is already pressed under the air outlet 311, so when the sliding plate 13 goes down, the air is discharged outwards from the air outlet 311, at this time, the filter paper 42 is arranged on the air outlet 311, so the air passes through the filter paper, the tiny particles are all left on the filter paper 42, after the sliding plate 13 goes to the lowest end, the automatic lifting device 43 slides downwards, the used filter paper 42 falls on the precise weighing scale 41, the precise weighing scale 41 is weighed again, the value is obtained, and the PM2.5 content in the pumped air is obtained through calculation.
The working principle or the using method is as follows:
when the device is started, the first electromagnet 16 is retracted, the locking tongue 161 releases the locking of the first gear 111 to enable the first gear 111 to rotate under the action of the scroll spring 14, the sliding plate 13 only slides up and down under the action of the sliding groove shaft 11 and the guide shaft 12, the guide sliding pin 133 in the sliding plate slides along the circulating sliding groove 112 of the sliding groove shaft 11 to drive the sliding plate 13 to slide up and drive the plurality of upper piston rings 22 to move up together, the space between the upper piston rings 22 and the lower piston rings 23 is enlarged, and air enters between the upper piston rings 22 and the lower piston rings 23 from the unidirectional ventilation device 24 on the lower piston rings 23 through the air inlet devices 7 at different positions, so that the air at different positions is pumped between the plurality of upper piston rings 22 and the lower piston rings 23, and when the upper piston rings 22 move up to the uppermost end, a plurality of cans of air are pumped.
When the equipment is started, the electric push rod 45 is also pushed forward, the push plate 46 at the front end of the electric push rod slides forward to drive the new filter paper 42 in the storage vat 44 to slide forward, so that the new filter paper 42 falls on the precision scale 41, the new filter paper 42 is propped against the used old filter paper 42 in the process of entering the precision scale 41, the new filter paper 42 is removed from the precision scale 41, after the new filter paper is fallen into the precision scale 41, the precision scale 41 firstly carries out initial value weighing on the filter paper 42, a signal is given to the automatic lifting device 43 after the weighing is finished, then the automatic lifting device starts to work, the filter paper 42 starts to lift up, the filter paper 42 is propped against the air outlet 311, and the upper piston ring 22 does not go up to the highest point when the filter paper 42 is propped against the air outlet 311.
When the upper piston ring 22 moves up to the uppermost end, the sliding plate 13 continues to slide upwards, so that the sliding plate 13 is unlocked from the piston sleeve 251, the upper end surface of the sliding plate 13 is propped against the first limiting block 253, the piston rod 252 is driven to slide upwards, the second elastic piece 254 is compressed, when the sliding plate 13 is disconnected from the piston sleeve 251, the upper piston ring 22 can still be kept at the right position, the sliding plate 13 is propped against the first limiting block 253 and simultaneously also propped against the second limiting block 261, the linkage shaft 26 is driven to slide upwards, the lower piston ring 23 is driven to slide upwards, the extracted air is injected into the air compressing barrel 31 through the guide pipe 33, the air compressing piston 32 is driven to slide upwards, the upper contact rod 322 on the air compressing piston 32 is also driven to move upwards when the sliding plate 13 moves upwards, and is located below the sliding plate 13 all the time, because the chute on the chute shaft 11 is a circulation chute, the sliding plate 13 starts to slide downwards after ascending to the highest point, in the process of sliding downwards, the top contact rod 322 is pressed and contacted, so that the air in the air compressing barrel 31 is discharged outwards through the air outlet 311 at the bottom of the air compressing barrel, at this moment, the air outlet 311 is provided with the filter paper 42, so that the air passes through the filter paper, the tiny particles are all left on the filter paper 42, after the sliding plate 13 runs to the lowest end, the automatic lifting device 43 slides downwards, the used filter paper 42 falls on the precise weighing scale 41, the precise weighing scale 41 is weighed again, a numerical value is obtained, and the PM2.5 content in the pumped air is obtained through calculation.
In the normal state, the first electromagnet 16 is in an extended state, the locking tongue 161 at the front end of the first electromagnet is located in the rotation stroke of the first gear 111, so that the sliding groove shaft 11 is locked, at the moment, the door 51 is opened, the pull wire 52 is pulled out of the rotating wheel 53, the rotating wheel 53 rotates in the pulling process, the rotating wheel 53 is arranged on the rotating shaft 151 in a unidirectional rotation mode, so that the rotating wheel 53 drives the rotating shell 15 to rotate when rotating, the spiral spring 14 is stirred tightly, elastic potential energy is accumulated, the rotating wheel 53 is reversed under the action of the torsion spring 54 when closing the door, the pull wire pulled out when opening the door is tightened, the pull wire returns to the original state, and the rotating wheel 53 rotates relative to the rotating shaft 151 when rotating in the opposite direction, so that the spiral spring 14 is accumulated once without opening the door.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An indoor building materials air detection device which characterized in that: the automatic weighing device comprises a base (6), a driving device (1), a gas collecting device (2), a compression device (3), a weighing device (4) and a power supplementing device (5), wherein the base (6) comprises an upper platform (61) and a lower platform (62), the driving device (1) comprises a chute shaft (11), a guide shaft (12) and a sliding plate (13), the chute shaft (11) and the guide shaft (12) are arranged on the upper platform (61), the sliding plate (13) is arranged on the chute shaft (11) and the guide shaft (12) in a sliding manner, a guide sliding pin (133) is arranged in the sliding plate (13) and is matched with the chute shaft (11), and when the chute shaft (11) rotates, the sliding plate (13) can slide up and down;
the gas collecting device (2) comprises a gas cylinder (21), an upper piston ring (22) and a lower piston ring (23), wherein the upper piston ring (22) and the lower piston ring (23) are both arranged in the gas cylinder (21) in a sliding way, a one-way ventilation device (24) is arranged on the upper piston ring (22), a piston device (25) is further arranged on the upper piston ring (22), the gas collecting device comprises a piston sleeve (251) and a piston rod (252), the bottom end of the piston sleeve (251) is arranged on the upper piston ring (22), the upper end of the piston sleeve is arranged on the sliding plate (13) in a sliding way, the elastic locking is carried out on the sliding plate (13), the piston rod (252) is arranged in the piston sleeve (251) in a sliding way, a first limiting block (253) is arranged at the top end of the piston rod (252), a linkage shaft (26) is arranged on the upper piston ring (22) and the sliding plate (13), and a second limiting block (261) and a third limiting block (262) are arranged on the linkage shaft (26), and the linkage shaft and the third limiting block are respectively arranged above and below the sliding plate (13).
The compression device (3) comprises an air compressing barrel (31), an air compressing piston (32) and a guide pipe (33), wherein the air compressing piston (32) is slidably arranged in the air compressing barrel (31), a one-way air inlet (321) is formed in the air compressing piston (32), an air outlet (311) is formed in the bottom of the air compressing barrel (31), the guide pipe (33) is communicated with the one-way air inlet (321) and a one-way ventilation device (24) arranged on an upper piston ring (22), a top contact rod (322) is arranged on the air compressing piston (32), the top end of the top contact rod is positioned below a sliding plate (13), the weighing device (4) is positioned below the air outlet (311), the weighing device comprises a precise weighing scale (41), filter paper (42) and an automatic lifting device (43), the automatic lifting device (43) lifts the filter paper (42) to block the air outlet (311), and the filter paper (42) is arranged on the precise weighing scale (41) in a downward retracting mode.
The power supplementing device (5) comprises a door (51), a pull wire (52) and a rotating wheel (53), wherein the rotating wheel (53) is arranged on the rotating shell (15) in a unidirectional rotation mode, the pull wire (52) is connected to the rotating wheel (53) and the door (51), and the door (51) is opened to drive the rotating wheel (53) to rotate so as to drive the rotating shell (15) to rotate.
2. An air detection device for indoor building materials according to claim 1, wherein: the gas collecting devices (2) are provided with a plurality of one-way ventilation devices (24) on the lower piston ring (23) of the gas collecting devices are connected with gas inlet devices at different positions.
3. An air detection device for indoor building materials according to claim 1, wherein: the driving device (1) further comprises a spiral spring (14), a rotating shell (15) and a first electromagnet (16), wherein the sliding groove shaft (11) is rotated and is arranged on the upper platform (61) in an up-down limiting mode, the rotating shell (15) is rotationally arranged on the sliding groove shaft (11), the spiral spring (14) is arranged in the rotating shell (15), the inner end of the spiral spring is arranged on the sliding groove shaft (11), the outer end of the spiral spring is arranged on the rotating shell (15), a first gear (111) is arranged on the sliding groove shaft (11), the first electromagnet (16) is arranged on the upper platform (61), and a locking tongue (161) is arranged at the front end of the first electromagnet and can lock the first gear (111) so that the first gear does not rotate.
4. An air detection device for indoor building materials according to claim 1, wherein: the power supplementing device (5) further comprises a torsion spring (54), one end of the torsion spring is arranged on the rotating wheel (53), and the other end of the torsion spring is arranged on the lower platform (62).
5. An air detection device for indoor building materials according to claim 1, wherein: the sliding plate (13) is internally provided with a first elastic piece (131), the front end of the sliding plate is propped against a locking ball (132), the locking ball (132) is propped against a piston sleeve (251), and the upper end surface of the piston sleeve (251) is provided with a groove (2511).
6. An air detection device for indoor building materials according to claim 1, wherein: weighing device (4) still including storage vat (44), electric putter (45) and sliding table (47), storage vat (44) are used for depositing filter paper (42), and it sets up on sliding table (47), electric putter (45) set up on sliding table (47), and its telescopic link front end is provided with push plate (46), discharge gate (441) have been seted up in running through in storage vat (44) bottom, and push plate (46) slip sets up in discharge gate (441), promotes filter paper (42) to smart volume (41) top.
7. The air detection device for indoor building materials according to claim 6, wherein: the upper plane of the sliding table (47) is higher than the upper plane of the precision scale (41), and the height difference is smaller than the thickness of the filter paper (42).
8. An air detection device for indoor building materials according to claim 1, wherein: the piston device (25) further comprises a second elastic piece (254) which is arranged on the piston rod (252) in a sliding manner and is positioned in the piston sleeve (251), the lower end of the second elastic piece is propped against the piston rod (252), and the upper end of the second elastic piece is propped against the piston sleeve (251).
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