CN218481367U - Air micro-station based on light scattering principle - Google Patents
Air micro-station based on light scattering principle Download PDFInfo
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- CN218481367U CN218481367U CN202222525046.8U CN202222525046U CN218481367U CN 218481367 U CN218481367 U CN 218481367U CN 202222525046 U CN202222525046 U CN 202222525046U CN 218481367 U CN218481367 U CN 218481367U
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- convex lens
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Abstract
The utility model discloses an air micro-station based on light scattering principle, including light emitter, photoreceiver and convex lens, be fixed with the mount pad between light emitter and the photoreceiver, be equipped with a location chamber that is used for installing convex lens respectively in the combination punishment of light emitter and mount pad and the combination punishment of photoreceiver and mount pad. The utility model has the advantages of reasonable design, through mutually supporting between structure and the structure, can accomplish the accurate positioning of mount pad and convex lens, clean at ordinary times need not all rely on the professional to accomplish at every turn for use more convenient, more do benefit to the popularization of product.
Description
The technical field is as follows:
the utility model relates to a miniature station of air based on light scattering principle.
Background art:
when air detection is carried out based on the Mie scattering principle, emergent light can be scattered to the periphery of particles in the air after the light with certain intensity is irradiated on the particles, the light intensity of the scattered light and the concentration of the particles are in a certain proportional relation, and the dust concentration is measured by collecting the scattered light (or the transmitted light) and measuring the size of an electric signal generated by irradiating the scattered light (or the transmitted light) on a photoelectric sensor. Because light is required to irradiate air, an air passage for circulating air is reserved in the existing air micro-station based on the Mie scattering principle, and the negative pressure of cross flow is increased at the air outlet of the air passage. Air current flows through between two convex lens, in the use, in order to guarantee the precision that detects, often need regularly to wash air flue and convex lens surface, be used for avoiding the particulate matter deposit in the air at air flue or convex lens surface, however current air micro-station is after dismantling the washing, the personnel that need possess the professional can install, if the installation is not in place very easily to exist and cause the not in place condition that influences the result of use of light source focus, consequently all be professional to go to maintain, if the ambient air quality change that uses is great, probably there is the condition that the urgent need was cleared up when not arriving a maintenance cycle, if professional such as this moment maintain, then can very big influence result of use.
The invention content is as follows:
the utility model relates to a solve the problem that above-mentioned prior art exists and provide a miniature station of air based on light scattering principle.
The utility model discloses the technical scheme who adopts has:
an air micro station based on a light scattering principle comprises a light emitter, a light receiver and convex lenses, wherein the two convex lenses are arranged between the light emitter and the light receiver, a channel for circulating air is formed between the two convex lenses, the light emitter emits a light beam with a certain divergence angle, the light beam is refracted through one of the convex lenses to form a parallel light beam and enters the channel, the parallel light beam enters the other convex lens after being reflected by particles in air flowing into the channel and is received by the light receiver, a mounting seat is fixed between the light emitter and the light receiver, and a positioning cavity for mounting the convex lenses is respectively arranged at the joint of the light emitter and the mounting seat and the joint of the light receiver and the mounting seat.
Furthermore, a limiting pipe is arranged in the inner cavity of the mounting seat, the channel for circulating air penetrates through the limiting pipe, and two ends of the limiting pipe abut against the two convex lenses.
Furthermore, an air inlet and an air outlet are connected to the outer wall of the mounting seat, two positioning holes are formed in the outer wall of the limiting pipe, the air inlet and the air outlet are connected to the outer wall of the mounting seat in a threaded mode, and the bottom end of the air inlet and the bottom end of the air outlet correspondingly extend into the two positioning holes.
Furthermore, flange surfaces are arranged on the shell of the optical receiver and the mounting seat, circular grooves are arranged at the circle center of the flange surface in the optical receiver and the circle center of the flange surface in the mounting seat, and after the two flange surfaces of the optical receiver and the mounting seat are fixed, the two circular grooves form a positioning cavity for placing the convex lens.
Further, a fixing head extending outwards is arranged on the shell of the light emitter, and a circular cavity is formed in the outer end face of the fixing head and forms a positioning cavity for mounting the convex lens.
Furthermore, the fixing head is fixedly connected with the mounting seat through a lock catch, a buckling lug in the lock catch is arranged on the fixing head, and a buckling head in the lock catch is arranged on the mounting seat.
The utility model discloses following beneficial effect has:
the utility model has the advantages of reasonable design, through mutually supporting between structure and the structure, can accomplish the accurate positioning of mount pad and convex lens, clean at ordinary times need not all rely on the professional to accomplish at every turn for use more convenient, more do benefit to the popularization of product.
Description of the drawings:
fig. 1 is a structural diagram of the present invention.
Fig. 2 is an explosion diagram of the present invention.
Fig. 3 is a working principle diagram of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 3, the utility model relates to a miniature station of air based on light scattering principle, including light emitter 1, photoreceiver 2 and convex lens 3, two convex lens 3 are arranged in between light emitter 1 and the photoreceiver 2, are formed with the passageway that is used for the circulation air between two convex lens 3, and light emitter 1 jets out the light beam that has certain divergence angle, forms parallel light beam and jets into the passageway after refracting through one of them convex lens 3, and in the passageway through flowing into another convex lens 3 and being received by photoreceiver 2 after the particulate matter reflection in the air (like fig. 3).
A mounting seat 4 is fixed between the light emitter 1 and the light receiver 2, and a positioning cavity for mounting the convex lens 3 is respectively arranged at the joint of the light emitter 1 and the mounting seat 4 and the joint of the light receiver 2 and the mounting seat 4. The utility model discloses a set up the location chamber that special setting is used for installing convex lens 3 in the miniature station of air, when the dismouting, arrange convex lens 3 in the location intracavity, realize the installation of fixing a position fast.
The location chamber carries out the spacing of circumference direction to convex lens 3, carries out axial direction's spacing to convex lens 3 for being convenient for, is equipped with spacing pipe 43 in the inner chamber of mount pad 4, sets up the step face simultaneously in the chamber of location, and the both ends of spacing pipe 43 are contradicted on two convex lens 3 for the passageway of circulating air runs through in spacing pipe 43.
Be connected with air inlet 41 and gas outlet 42 on the outer wall of mount pad 4, be equipped with two locating holes on the outer wall of spacing pipe 43, air inlet 41 and gas outlet 42 threaded connection are on the outer wall of mount pad 4, and the bottom of air inlet 41 and gas outlet 42 all is equipped with a step portion, and air inlet 41 and gas outlet 42 install behind mount pad 4, and the step portion of air inlet 41 and gas outlet 42 bottom corresponds and stretches into two locating holes. The air inlet 41 and the air outlet 42 are assembled on the mounting seat 4, and the bottom ends of the air inlet and the air outlet are inserted into the limiting pipe 43, so that the limiting pipe 43 can be better positioned.
The utility model provides an assembly of light receiver 2 and mount pad 4 is fixed through the flange face, and it is through all being equipped with flange face 51 on light receiver 2's casing and mount pad 4, and the centre of a circle department of flange face 51 all is equipped with circular recess 52 in mount pad 4 in light receiver 2 simultaneously, and after light receiver 2 and the two flange faces 51 of mount pad 4 are fixed, two circular recesses 52 constitute a location chamber that is used for placing convex lens 3.
A fixing head 11 extending outward is provided on the housing of the light emitter 1, and the outer end face of the fixing head 11 is provided with a circular cavity forming a positioning cavity for mounting the convex lens 3.
The utility model discloses also can all set two circular recess 52 to the step groove for realize carrying out axial positioning to convex lens 3, when setting to this structure, then can save the structure of spacing pipe 43, the axial positioning of another convex lens 3 can also be realized through this kind of structure, sets up the step hole in the junction of light emitter 1 and fixed head promptly.
The utility model provides a light emitter 1 and mount pad 4 are portable detachable construction, specifically are through 6 fixed connection of hasp, and the knot ear in the hasp 6 is installed on fixed head 11, and the knot in the hasp 6 is installed on mount pad 4.
The utility model discloses after unpacing apart mount pad 4 (or spacing pipe 43) and convex lens washing, through the utility model discloses a mutually supporting between structure and the structure, can accomplish the accurate positioning of mount pad and convex lens, cleanness at ordinary times need not all rely on the professional to accomplish at every turn for use more convenient, more do benefit to the popularization of product.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (6)
1. An air micro station based on a light scattering principle comprises a light emitter (1), a light receiver (2) and convex lenses (3), wherein the two convex lenses (3) are arranged between the light emitter (1) and the light receiver (2), a channel for circulating air is formed between the two convex lenses (3), the light emitter (1) emits a light beam with a certain divergence angle, the light beam is refracted by one of the convex lenses (3) to form a parallel light beam and enters the channel, and the parallel light beam enters the other convex lens (3) after being reflected by particles in air in an inflow channel and is received by the light receiver (2), and the air micro station is characterized in that: an installation seat (4) is fixed between the light emitter (1) and the light receiver (2), and a positioning cavity for installing the convex lens (3) is respectively arranged at the joint of the light emitter (1) and the installation seat (4) and the joint of the light receiver (2) and the installation seat (4).
2. The air micro-station based on the light scattering principle according to claim 1, characterized in that: be equipped with spacing pipe (43) in the inner chamber of mount pad (4), a passageway for circulating air runs through in spacing pipe (43), and the both ends of spacing pipe (43) are contradicted on two convex lens (3).
3. The air micro-station based on light scattering principle according to claim 2, characterized in that: be connected with air inlet (41) and gas outlet (42) on the outer wall of mount pad (4), be equipped with two locating holes on the outer wall of spacing pipe (43), air inlet (41) and gas outlet (42) threaded connection are on the outer wall of mount pad (4), and the bottom of air inlet (41) and the bottom of gas outlet (42) correspond and stretch in two in the locating hole.
4. The air micro-station based on the light scattering principle according to claim 1, characterized in that: all be equipped with flange face (51) on the casing of light receiver (2) and on mount pad (4), the centre of a circle department of flange face (51) and the centre of a circle department of flange face (51) all are equipped with circular recess (52) in light receiver (2) and mount pad (4), and after light receiver (2) and two flange faces (51) of mount pad (4) are fixed, a location chamber that is used for placing convex lens (3) is constituteed in two circular recess (52).
5. The air micro-station based on light scattering principle according to claim 1, characterized in that: a fixing head (11) extending outwards is arranged on a shell of the light emitter (1), and a circular cavity is formed in the outer end face of the fixing head (11) and forms a positioning cavity for mounting the convex lens (3).
6. The air micro-station based on the light scattering principle according to claim 5, characterized in that: fixed head (11) and mount pad (4) are through hasp (6) fixed connection between, and the knot ear in hasp (6) is installed on fixed head (11), and the knot head in hasp (6) is installed on mount pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222525046.8U CN218481367U (en) | 2022-09-23 | 2022-09-23 | Air micro-station based on light scattering principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222525046.8U CN218481367U (en) | 2022-09-23 | 2022-09-23 | Air micro-station based on light scattering principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218481367U true CN218481367U (en) | 2023-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222525046.8U Active CN218481367U (en) | 2022-09-23 | 2022-09-23 | Air micro-station based on light scattering principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218481367U (en) |
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2022
- 2022-09-23 CN CN202222525046.8U patent/CN218481367U/en active Active
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