CN210090151U

CN210090151U - Atmospheric pollution detection device

Info

Publication number: CN210090151U
Application number: CN201920743900.3U
Authority: CN
Inventors: 王登雷; 瞿晓怡
Original assignee: Suzhou Hi-Tech Zone Suxin Founding Environmental Scientific Research Technology Co Ltd
Current assignee: Jiangsu Guosheng Minghua Ecological Technology Co., Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-02-18
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses an atmosphere pollution detection device relates to air pollution check out test set technical field, aims at solving current atmosphere pollution detection device and has increased measuring error's problem. The technical scheme is that the detection main body comprises an installation block, an installation pipeline is connected to the side wall of the installation block, and a flow channel for communicating the installation pipeline with the gas storage box is arranged in the installation block; an exhaust fan is arranged in the installation pipeline, a gas collecting pipe is arranged on the outer side wall of the installation pipeline and positioned on one side of the exhaust fan close to the installation block, and the gas collecting pipe is connected with a gas detector; still be provided with dustproof filter screen in the installation pipeline, dustproof filter screen is located the air exhauster and keeps away from one side of installation piece. After the exhaust fan extracts ambient air, the extracted air enters the gas detector through the gas collecting pipe to be detected. Owing to set up dustproof filter screen in the installation pipeline, so particulate matter and dust in the air can be filtered and can not enter into gas detection appearance, have the effect that can reduce measuring error.

Description

Atmospheric pollution detection device

Technical Field

The utility model belongs to the technical field of air pollution check out test set technique and specifically relates to an atmosphere pollution detection device is related to.

Background

Currently, the market demand for small, mobile atmospheric composition analysis equipment, including gas detectors, capable of obtaining high spatial resolution is rapidly increasing. The gas detector comprises a portable gas detector, a handheld gas detector, a fixed gas detector, an online gas detector and the like, wherein a gas sensor is mainly used for detecting the types of gases existing in the environment, and the gas sensor is used for detecting the components and the content of the gases.

The prior Chinese patent with the publication number of CN207263732U discloses an atmospheric pollution detection device, which comprises a gas storage main body and a gas detection main body, wherein the gas detection main body is inserted in the center of the upper end face of the gas storage main body in a sliding manner. The inside of gaseous detection main part is fixed with the support mainboard, and the side end face of supporting the mainboard is pegged graft and is had the air exhauster, and the up end of air exhauster has been pegged graft and has been had gaseous detector, and the side end face central point of air exhauster puts and pegs graft and has first air duct, supports the mainboard and passes through the second air duct intercommunication with gaseous storage main part. During the use, the updraft ventilator can provide extraction power for first air duct, has made things convenient for the device to the extraction of air, and after the extraction air, the gas detection appearance of air exhauster upper end can detect the air, and the gas of extraction simultaneously can be carried to the inside of gaseous storage main part through the second air duct and seal up the deposit.

The above prior art solutions have the following drawbacks: after the outside air extracted by the exhaust fan enters the gas detector, particles and dust in the air can be adsorbed on various sensor parts in the gas detector, and since each part is a high-precision part, the sensor precision can be influenced after the time is long, and the measurement error is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an atmospheric pollution detection device, it has the effect that can reduce measuring error.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an atmospheric pollution detection device comprises a gas storage box and a detection main body, wherein an opening of the gas storage box is upward, the detection main body comprises an installation block attached to the top end of the gas storage box, an installation pipeline is connected to the side wall of the installation block, and a flow channel for communicating the installation pipeline with the gas storage box is arranged in the installation block; an exhaust fan is arranged in the installation pipeline, a gas collecting pipe is arranged on the outer side wall of the installation pipeline and positioned on one side, close to the installation block, of the exhaust fan, one end of the gas collecting pipe is communicated with the installation pipeline, and the other end of the gas collecting pipe is connected with a gas detector; still be provided with dustproof filter screen in the installation pipeline, dustproof filter screen is located the air exhauster and keeps away from one side of installation piece.

Through adopting above-mentioned technical scheme, after starting the air exhauster extraction ambient air, the air of extraction is behind dustproof filter screen, and the rethread discharge enters into gas detection appearance and detects. The dust-proof filter screen filters out particulate matters and dust in the air, and the dust-proof filter screen cannot enter the gas detector, so that the detection precision of various sensor parts in the gas detector is ensured, and the effect of reducing the measurement error is achieved.

The utility model discloses further set up to: the inner side wall of the installation pipeline is provided with an installation ring groove along the circumferential direction of the inner side wall, and the dustproof filter screen comprises a frame-shaped plate matched with the installation ring groove and a filter screen arranged in the frame-shaped plate; the outer side wall of the upper end of the mounting pipeline is provided with a socket which is communicated with the mounting ring groove and is used for inserting the frame-shaped plate into the mounting ring groove.

Through adopting above-mentioned technical scheme, realized dismantling of dustproof filter screen, conveniently wash or change dustproof filter screen.

The utility model discloses further set up to: elastic sealing gaskets are arranged on two end faces of the frame-shaped plate along the length direction of the installation pipeline.

Through adopting above-mentioned technical scheme, increased the leakproofness between frame-shaped plate and the installation pipeline.

The utility model discloses further set up to: the mounting pipeline is in a square tube shape, and the socket is arranged on the outer side wall of the top of the mounting pipeline; all be provided with the shifting block on two lateral walls of frame-shaped plate and socket place plane vertically, all be provided with the groove of stepping down on two lateral walls of installation pipeline and socket place plane vertically, the groove of stepping down extends to socket department and with corresponding shifting block adaptation.

Through adopting above-mentioned technical scheme, upwards promote the shifting block and can take out dustproof filter screen from the mounting ring inslot, make things convenient for the application of force.

The utility model discloses further set up to: the shifting block is provided with a plurality of convex strips.

By adopting the technical scheme, the static friction coefficient between the fingers and the shifting block is increased, and the fingers can apply force to the shifting block more easily.

The utility model discloses further set up to: the bottom end of the mounting block is provided with an air duct, one end of the air duct is communicated with the flow channel, and the other end of the air duct is provided with a notch; the gas storage box comprises an installation cavity and a gas storage cavity which are sequentially arranged from top to bottom, and a communication opening for inserting the gas guide pipe into the gas storage cavity is formed in the bottom wall of the installation cavity; the gas storage cavity is internally and movably provided with a sealing plate used for sealing the communication port along the vertical direction, and an elastic reset assembly used for applying upward elastic driving force to the sealing plate is arranged between the sealing plate and the mounting cavity.

Through adopting above-mentioned technical scheme, will detect the main part and take off the back from the gas storage box, the closing plate can seal the intercommunication mouth for the air in the gas storage chamber can not spill out, is convenient for follow-up research to air in the gas storage chamber.

The utility model discloses further set up to: the elastic reset assembly comprises a mounting column, a connecting column, a spring and a limiting plate; the connecting column is arranged on the bottom wall of the mounting cavity, a sliding groove is formed in the bottom end of the connecting column, and the limiting plate is arranged in the sliding groove in a sliding mode along the vertical direction; a through hole communicated with the sliding groove is formed in the bottom wall of the mounting cavity, and the inner diameter of the through hole is smaller than that of the sliding groove; one end of the connecting column is connected with the sealing plate, and the other end of the connecting column penetrates through the through hole to be connected with the limiting plate in the sliding groove; the spring sleeve is established on the spliced pole, the one end and the limiting plate of spring offset, the other end and the diapire of installation cavity of spring offset.

Through adopting above-mentioned technical scheme, the air duct inserts the gas storage chamber after, and the closing plate moves down, and the spring is in by compression state and accumulates elastic potential energy. When taking off the detection main part, when the air duct removed to the installation cavity direction promptly, the closing plate can remove to the installation cavity direction under the spring action of spring, until laminating with the roof of gas storage chamber.

The utility model discloses further set up to: and a sealing ring is arranged on the end surface, close to the mounting cavity, of the sealing plate along the circumferential direction of the sealing plate.

Through adopting above-mentioned technical scheme, increased the leakproofness to the gas storage chamber.

To sum up, the utility model discloses a beneficial technological effect does:

1. the arrangement of the installation pipeline, the gas collecting pipe, the exhaust fan and the dustproof filter screen can reduce the measurement error;

2. through the arrangement of the inserting opening, the mounting ring groove, the abdicating groove, the frame-shaped plate and the shifting block, the dustproof filter screen can be conveniently taken out for cleaning or replacing;

3. through the arrangement of the air guide pipe and the elastic reset assembly, the tightness of the air storage cavity is guaranteed, and the follow-up research on the air in the air storage cavity is facilitated.

Drawings

Fig. 1 is a schematic view of an overall structure of an atmospheric pollution detection device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram illustrating a connection relationship between a gas storage box and a detection main body according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an installation duct according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a cross-sectional view of a gas cartridge according to an embodiment of the present invention;

fig. 6 is an enlarged view of a portion B in fig. 5.

In the figure, 1, a gas storage box; 11. a mounting cavity; 12. a gas storage cavity; 13. a communication port; 14. a slot; 15. a one-way exhaust valve; 2. detecting a subject; 3. mounting blocks; 31. a flow channel; 32. an air duct; 33. a notch; 34. a handle; 35. inserting a column; 4. installing a pipeline; 41. an exhaust fan; 42. a gas collecting pipe; 43. a gas detector; 44. mounting a ring groove; 45. a socket; 46. a yielding groove; 5. a dustproof filter screen; 51. a frame-shaped plate; 52. a filter screen; 53. an elastic sealing gasket; 54. shifting blocks; 55. a convex strip; 6. a sealing plate; 61. mounting a column; 62. connecting columns; 63. a spring; 64. a limiting plate; 65. a sliding groove; 66. a through hole; 67. a seal ring; 7. a support frame; 71. mounting grooves; 72. and a caster.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an atmospheric pollution detection device, including support frame 7, the bottom four corners department of support frame 7 all is provided with truckle 72, and the top of support frame 7 is provided with eight mounting grooves 71. All insert in each mounting groove 71 and be equipped with the ascending gas receiver 1 of opening, the top of gas receiver 1 is provided with detection subject 2, and detection subject 2 includes installation piece 3. The gas cartridge 1 has a gap with the inner side wall of the corresponding mounting groove 71, that is, the gas cartridge 1 does not contact with the inner side wall of the mounting groove 71 or a small gap is left for air to flow through.

Referring to fig. 2, four corners of the bottom end of the mounting block 3 are provided with inserting posts 35, and four corners of the top end of the gas storage box 1 are provided with inserting slots 14 for inserting the corresponding inserting posts 35. After the four inserting columns 35 are inserted into the corresponding slots 14, the bottom ends of the mounting blocks 3 are attached to the top end of the gas storage box 1. A handle 34 is further provided at the tip of the mounting block 3, and the mounting block 3 can be lifted up by the handle 34, thereby separating the mounting block 3 from the gas cartridge 1.

Referring to fig. 2 and 3, a mounting duct 4 is connected to a side wall of the mounting block 3, and a suction fan 41 is provided in the mounting duct 4. The outer side wall of the mounting pipeline 4 is provided with a gas collecting pipe 42, and the gas collecting pipe 42 is a hose and is positioned on one side of the exhaust fan 41 close to the mounting block 3. One end of the gas collecting pipe 42 is communicated with the installation pipeline 4, and the other end of the gas collecting pipe 42 is connected with a gas detector 43. Specifically, in the present embodiment, the gas detector 43 is a BW/EG-HDA4E type four-in-one gas detector, and one end of the gas collecting pipe 42, which is far away from the installation pipeline 4, is communicated with a gas collecting port of the gas detector 43. A dustproof filter screen 5 is further arranged in the mounting pipeline 4, and the dustproof filter screen 5 is positioned on one side of the exhaust fan 41 far away from the mounting block 3.

Referring to fig. 3, an installation ring groove 44 is formed in the inner side wall of the installation pipeline 4 along the circumferential direction thereof, the dustproof filter screen 5 includes a frame-shaped plate 51 and a filter screen 52, the frame-shaped plate 51 is adapted to the installation ring groove 44, and the filter screen 52 is disposed in the frame-shaped plate 51. Preferably, the mounting pipe 4 is in a square pipe shape, and a socket 45 communicating with the mounting ring groove 44 is provided on an outer side wall of a top portion of the mounting pipe 4, and the socket 45 is used for inserting the frame-shaped plate 51 into the mounting ring groove 44.

Referring to fig. 3 and 4, the frame-shaped plate 51 is provided with elastic gaskets 53 on both end surfaces along the length direction of the installation duct 4, and in this embodiment, the elastic gaskets 53 are rubber gaskets. The two outer side walls of the frame-shaped plate 51 perpendicular to the plane of the socket 45 are provided with a shifting block 54, and the side wall of the shifting block 54 far away from the frame-shaped plate 51 is provided with a plurality of convex strips 55. The two outer side walls of the mounting pipeline 4 perpendicular to the plane of the socket 45 are provided with abdicating grooves 46 extending to the socket 45, and the abdicating grooves 46 are matched with the shifting blocks 54. In the initial state, the frame-shaped plate 51 is positioned in the mounting ring groove 44, and the shifting block 54 is clamped into the corresponding abdicating groove 46; when the dustproof filter screen 5 needs to be taken out of the mounting ring groove 44, the shifting block 54 is pushed upwards.

Referring to fig. 5, a flow passage 31 is provided in the mounting block 3, and the flow passage 31 communicates the mounting tube 4 with the gas cartridge 1. The bottom of installation piece 3 is provided with air duct 32, and in this embodiment, air duct 32 is the metal hard tube, and the one end and the runner 31 intercommunication of air duct 32, the other end of air duct 32 are provided with breach 33. The gas storage box 1 comprises a mounting cavity 11 and a gas storage cavity 12 which are sequentially arranged from top to bottom, a communication port 13 for inserting the gas guide pipe 32 into the gas storage cavity 12 is formed in the bottom wall of the mounting cavity 11, and a one-way exhaust valve 15 corresponding to the gas storage cavity 12 is arranged on the outer side wall of the gas storage box 1. A sealing plate 6 for sealing the communication port 13 is movably arranged in the air storage cavity 12 along the vertical direction, and a sealing ring 67 is arranged on the end surface of the sealing plate 6 close to the installation cavity 11 along the circumferential direction.

Referring to fig. 5 and 6, an elastic restoring assembly for applying an upward elastic driving force to the sealing plate 6 is disposed between the sealing plate 6 and the mounting cavity 11, preferably, the sealing plate 6 is circular, and two groups of the elastic restoring assemblies are uniformly distributed along the circumferential direction of the sealing plate 6, and the elastic restoring assembly is specifically described below by taking one group as an example.

Elasticity reset assembly includes erection column 61, spliced pole 62, spring 63 and limiting plate 64, and the vertical setting of spliced pole 62 is provided with the groove 65 that slides on the diapire of installation cavity 11, the bottom of spliced pole 62, and limiting plate 64 slides along vertical direction and sets up in the groove 65 that slides. The top wall of the air storage cavity 12 is provided with a through hole 66 communicated with the sliding groove 65, and the inner diameter of the through hole 66 is smaller than that of the sliding groove 65. The limit plate 64 is circular, and the diameter of the limit plate 64 is larger than the inner diameter of the through hole 66. One end of the connecting column 62 is connected with the sealing plate 6, and the other end of the connecting column 62 passes through the through hole 66 to be coaxially connected with the limiting plate 64 in the sliding groove 65. The spring 63 is sleeved on the connecting column 62, one end of the spring 63 abuts against the limiting plate 64, and the other end of the spring 63 abuts against the bottom wall of the mounting cavity 11.

The implementation principle of the embodiment is as follows:

in the initial state, the frame-shaped plate 51 of the dustproof filter screen 5 is positioned in the mounting ring groove 44, the shifting block 54 is clamped in the corresponding abdicating groove 46, the air duct 32 extends into the air storage cavity 12, and the spring 63 in the sliding groove 65 is in a compressed state.

After the exhaust fan 41 is started to extract ambient air, the extracted air is filtered by the dustproof filter screen 5 and then enters the gas detector 43 through the gas collecting pipe 42 for detection, and the effect of reducing measurement errors is achieved. Simultaneously, the air after dustproof filter screen 5 filters also enters into the gas storage chamber 12, and original air in the gas storage chamber 12 is discharged outside the gas storage box 1 through the one-way exhaust valve 15, and the air discharged by the one-way exhaust valve 15 can flow out of the mounting groove 71 through the gap between the gas storage box 1 and the inner side wall of the corresponding mounting groove 71. After the detection main body 2 is lifted up by the handle 34, the sealing plate 6 moves towards the installation cavity 11 under the action of the elastic force of the spring 63 until the sealing ring 67 is attached to the top wall of the gas storage cavity 12, so that the communication port 13 is sealed, and the subsequent study on the air in the gas storage cavity 12 is facilitated.

When the dustproof filter screen 5 needs to be replaced or cleaned, the shifting block 54 is pushed upwards, so that the dustproof filter screen 5 can be easily taken out of the mounting ring groove 44, and the dustproof filter screen 5 can be cleaned or replaced by a new dustproof filter screen 5. When the dustproof filter screen 5 is installed, the frame-shaped plate 51 is aligned with the inserting hole 45 and inserted into the installation ring groove 44, and the shifting block 54 is clamped into the corresponding abdicating groove 46.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an atmospheric pollution detection device, includes gas storage box (1) and detection subject (2), the opening of gas storage box (1) makes progress, its characterized in that: the detection main body (2) comprises an installation block (3) attached to the top end of the gas storage box (1), an installation pipeline (4) is connected to the side wall of the installation block (3), and a flow channel (31) for communicating the installation pipeline (4) with the gas storage box (1) is arranged in the installation block (3); an exhaust fan (41) is arranged in the mounting pipeline (4), a gas collecting pipe (42) is arranged on the outer side wall of the mounting pipeline (4) and positioned on one side, close to the mounting block (3), of the exhaust fan (41), one end of the gas collecting pipe (42) is communicated with the mounting pipeline (4), and the other end of the gas collecting pipe (42) is connected with a gas detector (43); still be provided with dustproof filter screen (5) in installation pipeline (4), dustproof filter screen (5) are located one side that installation piece (3) were kept away from in air exhauster (41).

2. An atmospheric pollution detection device as claimed in claim 1, wherein: an installation ring groove (44) is formed in the inner side wall of the installation pipeline (4) along the circumferential direction of the inner side wall, and the dustproof filter screen (5) comprises a frame-shaped plate (51) matched with the installation ring groove (44) and a filter screen (52) arranged in the frame-shaped plate (51); the outer side wall of the upper end of the installation pipeline (4) is provided with a socket (45) which is communicated with the installation ring groove (44) and is used for inserting the frame-shaped plate (51) into the installation ring groove (44).

3. An atmospheric pollution detection device as claimed in claim 2, wherein: elastic sealing gaskets (53) are arranged on two end faces of the frame-shaped plate (51) along the length direction of the installation pipeline (4).

4. An atmospheric pollution detection device as claimed in claim 2, wherein: the mounting pipeline (4) is in a square tube shape, and the socket (45) is arranged on the outer side wall of the top of the mounting pipeline (4); all be provided with shifting block (54) on two lateral walls of frame-shaped plate (51) and socket (45) place plane vertically, all be provided with groove of stepping down (46) on two lateral walls of installation pipeline (4) and socket (45) place plane vertically, step down groove (46) extend to socket (45) department and with corresponding shifting block (54) adaptation.

5. An atmospheric pollution detection device as claimed in claim 4, wherein: the shifting block (54) is provided with a plurality of convex strips (55).

6. An atmospheric pollution detection device as claimed in claim 1, wherein: the bottom end of the mounting block (3) is provided with an air duct (32), one end of the air duct (32) is communicated with the flow channel (31), and the other end of the air duct (32) is provided with a notch (33); the gas storage box (1) comprises an installation cavity (11) and a gas storage cavity (12) which are sequentially arranged from top to bottom, and a communication opening (13) for inserting the gas guide pipe (32) into the gas storage cavity (12) is formed in the bottom wall of the installation cavity (11); a sealing plate (6) used for sealing the communication port (13) is movably arranged in the air storage cavity (12) along the vertical direction, and an elastic reset assembly used for applying upward elastic driving force to the sealing plate (6) is arranged between the sealing plate (6) and the mounting cavity (11).

7. An atmospheric pollution detection device as claimed in claim 6, wherein: the elastic reset assembly comprises a mounting column (61), a connecting column (62), a spring (63) and a limiting plate (64); the connecting column (62) is arranged on the bottom wall of the mounting cavity (11), a sliding groove (65) is formed in the bottom end of the connecting column (62), and the limiting plate (64) is arranged in the sliding groove (65) in a sliding mode along the vertical direction; a through hole (66) communicated with the sliding groove (65) is formed in the bottom wall of the mounting cavity (11), and the inner diameter of the through hole (66) is smaller than that of the sliding groove (65); one end of the connecting column (62) is connected with the sealing plate (6), and the other end of the connecting column (62) penetrates through the through hole (66) to be connected with the limiting plate (64) in the sliding groove (65); the connecting column (62) is sleeved with the spring (63), one end of the spring (63) abuts against the limiting plate (64), and the other end of the spring (63) abuts against the bottom wall of the mounting cavity (11).

8. An atmospheric pollution detection device as claimed in claim 7, wherein: and a sealing ring (67) is arranged on the end surface, close to the mounting cavity (11), of the sealing plate (6) along the circumferential direction of the sealing plate.