CN216847085U - Motor vehicle tail gas sampling device - Google Patents

Abstract

The utility model discloses a motor vehicle tail gas sampling device, which comprises a sampling probe tube and a collecting container, wherein one end of the sampling probe tube is connected with the collecting container, the middle part of the collecting container is provided with a collecting component, the collecting component comprises a connecting tube, a collecting inner tube, a sealing hole and an exhaust hole, the connecting tube and the collecting inner tube are of an integral structure, the output end of the sampling probe tube is clamped in the connecting tube, and the sampling probe tube conveys sampling tail gas to the inside of the collecting inner tube, through the sampling probe tube, the tail gas enters the inside of the collecting inner tube, redundant tail gas is discharged from the sealing hole and enters the inside of the collecting container, and finally the tail gas is discharged from the exhaust hole, the collecting inner tube is not directly contacted with external air, after the collection, the sealing hole and the connecting tube are both redundant tail gas, and air is not easy to be mixed when the collection is finished, thereby ensuring the purity of the collected tail gas, the later detection result is more accurate.

Description

Motor vehicle tail gas sampling device

Technical Field

The utility model relates to a tail gas sampling technical field specifically is a motor vehicle tail gas sampling device.

Background

The automobile exhaust is exhaust gas generated when an automobile is used, and contains hundreds of different compounds, wherein pollutants comprise solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, oxynitride, lead, sulfur oxide and the like;

but the sampling device of present motor vehicle tail gas sneaks into the outside air easily when collecting the completion, leads to the tail gas of gathering to have the deviation with actual when detecting data, causes the detection effect of tail gas unsatisfactory.

SUMMERY OF THE UTILITY MODEL

The utility model provides a motor vehicle tail gas sampling device can effectively solve the sampling device who provides present motor vehicle tail gas in the above-mentioned background art, sneaks into the outside air easily when collecting the completion, and the tail gas that leads to gathering has the deviation with actual when examining data, causes the unsatisfactory problem of detection effect of tail gas.

In order to achieve the above purpose, the utility model provides a following technical scheme: a motor vehicle tail gas sampling device comprises a sampling probe tube and a collecting container, wherein one end of the sampling probe tube is connected with the collecting container, and the middle part of the collecting container is provided with a collecting component;

the collecting assembly comprises a connecting pipe, a collecting inner pipe, a sealing hole and an exhaust hole;

the connecting pipe with collect inner tube formula structure as an organic whole, the sampling is visited the inside joint of pipe output in the connecting pipe, and the sampling is visited the pipe and is being collected the inside tail gas of carrying of inner tube, collects the inner tube top and sets up unnecessary tail gas exhaust sealed hole, collects the container bottom and sets up the exhaust hole to exhausting tail gas in the air.

Preferably, the collecting assembly comprises a mounting plate, a connecting pipe, a collecting inner pipe, a sealing hole, a thread block, a rotating rod, a clamping strip, an exhaust hole, a sealing plug and a storage block;

the mounting panel is installed to collection container inlet end, the connecting pipe is installed in the embedding of mounting panel middle part, connecting pipe one end is installed and is collected the inner tube, the sealed hole has been seted up at the top of collecting the inner tube, the inside threaded connection of sealed hole has the screw thread piece, the inside joint of screw thread piece has the dwang, the joint strip is installed in the outside of dwang, the exhaust hole has been seted up to the bottom of collecting the container, the inside joint in exhaust hole has the sealing plug, it installs and deposits the piece to collect the container bottom and correspond exhaust hole position department.

Preferably, the top end of the collecting container is provided with a positioning hole corresponding to the position of the sealing hole, the middle part of the thread block is provided with a limiting clamping hole, and the clamping strip is clamped inside the limiting clamping hole.

Preferably, a sealing assembly is arranged at the connecting position of the sampling probe and the collecting container;

the sampling probe tube is clamped in the connecting tube, the sealing plate is clamped outside the sampling probe tube, the sampling probe tube is pulled out, and the sealing plate is clamped at the bottom of the sliding groove to block the connecting tube;

the sealing assembly comprises an annular groove, a sliding groove, a limiting ring, an annular barrier strip and a sealing plate;

the sampling probe tube is externally provided with a ring-shaped groove, the top end of the mounting plate is provided with a sliding groove, one end of the connecting tube is correspondingly provided with a limiting ring in the inner collecting tube, the inner side edge of the limiting ring is provided with a ring-shaped barrier strip, and the sliding groove is internally provided with a sealing plate in a sliding manner.

Preferably, the sliding groove penetrates through the middle of the connecting pipe, an arc-shaped groove is formed in the position, corresponding to the annular groove, of the bottom end of the sealing plate, and the bottom end of the sealing plate is clamped and fixed with the annular groove.

Preferably, a fixing component is installed at the air inlet end of the sampling probe tube;

the inner supporting plate is connected with the clamping plate to form an arc-shaped clamping groove, the side wall of the tail gas pipe of the motor vehicle is clamped with the arc-shaped clamping groove, the fixing bolt is screwed, and the clamping plate is fixed with the tail gas pipe of the motor vehicle;

the fixing assembly comprises a collecting cover, a fixing frame, an inner supporting plate, a protective gasket, a clamping plate, a fixing block, a fixing bolt and a rubber head;

the sampling probe tube's inlet end is installed and is collected the cover, collect the cover top and all install fixed frame with the bottom, the inner support plate is installed to the one end of fixed frame, the outer terminal surface of inner support plate has glued the protection gasket, the joint board is installed to the tip of inner support plate, the mid-mounting of joint board has the fixed block, fixed block middle part threaded connection has fixing bolt, the rubber head is installed to the fixing bolt bottom.

Preferably, the middle parts of the fixing block and the clamping plate are provided with positioning screw holes, and the fixing bolt is in threaded connection with the inside of the positioning screw threads.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. collect the inner tube through setting up, sealed hole, the thread piece, the dwang, the joint strip, exhaust hole and sealing plug, through the sampling probe tube, inside tail gas gets into the collection inner tube, unnecessary tail gas is discharged from sealed hole, get into the inside of collecting the container, outwards discharge from the exhaust hole at last, collect the inner tube and directly not contact with the outside air, sealed hole and connecting pipe position department are unnecessary tail gas after the collection is accomplished, be difficult for there being the air sneak into when collecting the completion, thereby guarantee the tail gas purity of collection, make later stage testing result more accurate.

2. Through setting up ring channel, spout, spacing ring, annular blend stop and closing plate, through the joint of closing plate, to the location of exploring the pipe of sampling during convenient sampling, after the sampling is accomplished, quick sliding closing plate seals up the connecting pipe, and is not only sealed quick, and conveniently samples and explores being connected between pipe and the collecting vessel.

3. Through setting up collection cover, fixed frame, interior backup pad, protection gasket, joint board, fixed block, fixing bolt and rubber head, aim at the tracheal pipe wall of motor vehicle rear with the arc draw-in groove between interior backup pad and the joint board, it is fixed with the pipe wall joint, then tighten fixing bolt, make the sampling probe tube arrange the tracheal middle part of motor vehicle rear in to convenient quick fixed sampling probe tube, the fixed of sampling probe tube with dismantle convenient and fast more.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the fixing bolt of the present invention;

FIG. 3 is a schematic structural diagram of the connecting tube of the present invention;

FIG. 4 is a schematic structural view of the stop collar of the present invention;

fig. 5 is a schematic structural view of the sealing plug of the present invention;

reference numbers in the figures: 1. sampling probe tube; 2. a collection container;

3. a fixing assembly; 301. a collection hood; 302. a fixing frame; 303. an inner support plate; 304. a protective pad; 305. a clamping and connecting plate; 306. a fixed block; 307. fixing the bolt; 308. a rubber head;

4. a collection assembly; 401. mounting a plate; 402. a connecting pipe; 403. collecting the inner tube; 404. sealing the hole; 405. a thread block; 406. rotating the rod; 407. a clamping strip; 408. an exhaust hole; 409. a sealing plug; 410. storing the blocks;

5. a seal assembly; 501. an annular groove; 502. a chute; 503. a limiting ring; 504. an annular barrier strip; 505. and (7) sealing the plate.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-3 and 5, the utility model provides a technical solution, a motor vehicle exhaust gas sampling device, which comprises a sampling probe tube 1 and a collection container 2, wherein one end of the sampling probe tube 1 is connected with the collection container 2, and the middle part of the collection container 2 is provided with a collection component 4;

the collection assembly 4 includes a connection pipe 402, a collection inner pipe 403, a sealing hole 404, and a vent hole 408;

connecting pipe 402 and collection inner tube 403 formula structure as an organic whole, sampling probe 1 output end joint is inside connecting pipe 402, and sampling probe 1 is to collecting the inside conveying sampling tail gas of inner tube 403, collects the inner tube 403 top and has seted up unnecessary exhaust sealed hole 404 of tail gas, and collection container 2 bottom is seted up the exhaust hole 408 of exhausting tail gas in the directional air.

The collection assembly 4 comprises a mounting plate 401, a connecting pipe 402, a collection inner pipe 403, a sealing hole 404, a thread block 405, a rotating rod 406, a clamping strip 407, an exhaust hole 408, a sealing plug 409 and a storage block 410;

mounting panel 401 is installed to collection container 2 inlet end, mounting panel 401 middle part embedding installs connecting pipe 402, connecting pipe 402 one end is installed and is collected inner tube 403, sealed hole 404 has been seted up at the top of collecting inner tube 403, sealed hole 404 inside threaded connection has screw block 405, the inside joint of screw block 405 has dwang 406, joint strip 407 is installed in the outside of dwang 406, the locating hole has been seted up to collection container 2's top correspondence sealed hole 404 position department, spacing calorie of hole has been seted up at the middle part of screw block 405, joint strip 407 joint is in spacing calorie of downthehole portion, make things convenient for screw block 405 to twist, exhaust hole 408 has been seted up to collection container 2's bottom, the inside joint of exhaust hole 408 has sealing plug 409, collection container 2 bottom corresponds exhaust hole 408 position department and installs and deposits piece 410.

A sealing component 5 is arranged at the connecting position of the sampling probe 1 and the collecting container 2;

the sampling probe tube 1 is clamped inside the connecting tube 402, the sealing plate 505 is clamped outside the sampling probe tube 1, the sampling probe tube 1 is pulled out, and the sealing plate 505 is clamped at the bottom of the chute 502 to block the connecting tube 402;

as shown in fig. 3-4, the sealing assembly 5 includes an annular groove 501, a sliding groove 502, a retaining ring 503, an annular barrier 504, and a sealing plate 505;

annular groove 501 has been seted up to sampling probe 1 outside, spout 502 has been seted up on mounting panel 401 top, connecting pipe 402 one end is corresponding to collect inner tube 403 internally mounted and is had spacing ring 503, annular blend stop 504 is installed to the inboard limit portion of spacing ring 503, the inside slidable mounting of spout 502 has closing plate 505, spout 502 runs through in connecting pipe 402 middle part, the arc wall has been seted up to the bottom of closing plate 505 corresponding annular groove 501 position department, closing plate 505 bottom is fixed with annular groove 501 joint, the convenience is fixed a position closing plate 505.

The air inlet end of the sampling probe 1 is provided with a fixed component 3;

the inner supporting plate 303 is connected with the clamping plate 305 to form an arc-shaped clamping groove, the side wall of the tail gas pipe of the motor vehicle is clamped with the arc-shaped clamping groove, the fixing bolt 307 is screwed, and the clamping plate 305 is fixed with the tail gas pipe of the motor vehicle;

the fixing component 3 comprises a collecting cover 301, a fixing frame 302, an inner support plate 303, a protective gasket 304, a clamping plate 305, a fixing block 306, a fixing bolt 307 and a rubber head 308;

sampling probe 1's inlet end is installed and is collected cover 301, collect cover 301 top and all install fixed frame 302 with the bottom, interior backup pad 303 is installed to the one end of fixed frame 302, the outer end face veneer of interior backup pad 303 has protective backing 304, joint board 305 is installed to the tip of interior backup pad 303, the mid-mounting of joint board 305 has fixed block 306, fixed block 306 middle part threaded connection has fixing bolt 307, the location screw has all been seted up at fixed block 306 and joint board 305 middle part, fixing bolt 307 threaded connection is inside the location screw, conveniently screw up fixing bolt 307, fix sampling probe 1, rubber head 308 is installed to fixing bolt 307 bottom.

The utility model discloses a theory of operation and use flow: firstly, sliding a sealing plate 505 to the top of a sliding groove 502, screwing one end of a sampling probe 1 with an annular groove 501 into a connecting pipe 402 until the end is immersed into the limiting ring 503 and is contacted with an annular barrier 504, and then downwards moving the sealing plate 505 to be clamped in the annular groove 501, so that the sampling probe 1 is stably connected with a collection container 2;

then, clamping the rotating rod 406 in the middle of the thread block 405, screwing the thread block 405 to open the sealing hole 404, placing the thread block 405 inside the positioning hole at the top end of the collection container 2 to communicate the collection container 2 with the collection inner tube 403, then pulling out the sealing plug 409 to open the exhaust hole 408, and clamping the sealing plug 409 outside the storage block 410;

finally, aligning the arc-shaped clamping groove between the inner supporting plate 303 and the clamping plate 305 to the pipe wall of the tail gas pipe of the motor vehicle, clamping and fixing the arc-shaped clamping groove with the pipe wall, and then screwing the fixing bolt 307 to enable the sampling probe pipe 1 to be arranged in the middle of the tail gas pipe of the motor vehicle, so that the sampling probe pipe 1 can be conveniently and quickly fixed;

when tail gas is collected, the collecting cover 301 collects the tail gas in the sampling probe tube 1, the tail gas passes through the sampling probe tube 1, enters the collecting inner tube 403, redundant tail gas is discharged from the sealing hole 404, enters the collecting container 2 and is finally discharged from the exhaust hole 408, the collecting inner tube 403 is not directly contacted with the outside air, and the collected tail gas is not easy to mix with the air;

after the collection is accomplished, earlier with sealing plug 409 joint inside exhaust hole 408, rotate dwang 406 again, drive screw block 405 and twist sealed hole 404 middle part, probe 1 outwards to extract sampling at last again, when extracting with closing plate 505 along spout 502 lapse, make connecting pipe 402 sealed, avoid the outside air to get into, after sampling probe 1 extracts completely, again with the mouth of pipe of connecting pipe 402 sealed, make the mouth of pipe position can seal fast, connecting pipe 402's easy dismounting is swift.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a motor vehicle exhaust sampling device, surveys pipe (1) and collecting container (2) including the sampling, its characterized in that: one end of the sampling probe tube (1) is connected with a collection container (2), and a collection assembly (4) is arranged in the middle of the collection container (2);

the collecting assembly (4) comprises a mounting plate (401), a connecting pipe (402), a collecting inner pipe (403), a sealing hole (404), a thread block (405), a rotating rod (406), a clamping strip (407), an exhaust hole (408), a sealing plug (409) and a storage block (410);

mounting panel (401) are installed to collection container (2) inlet end, connecting pipe (402) are installed in embedding of mounting panel (401) middle part, inner tube (403) are installed to connecting pipe (402) one end, sealed hole (404) have been seted up at the top of collecting inner tube (403), sealed hole (404) internal thread is connected with screw block (405), the inside joint of screw block (405) has dwang (406), joint strip (407) are installed in the outside of dwang (406), exhaust hole (408) have been seted up to the bottom of collection container (2), the inside joint of exhaust hole (408) has sealing plug (409), it deposits piece (410) to install corresponding exhaust hole (408) position department in collection container (2) bottom.

2. The motor vehicle exhaust sampling device according to claim 1, wherein a positioning hole is formed at a position corresponding to the sealing hole (404) at the top end of the collection container (2), a limiting clamping hole is formed in the middle of the thread block (405), and the clamping strip (407) is clamped inside the limiting clamping hole.

3. The motor vehicle exhaust gas sampling device according to claim 2, wherein a sealing assembly (5) is installed at the connecting position of the sampling probe tube (1) and the collection container (2);

the sampling probe tube (1) is clamped inside the connecting tube (402), the sealing plate (505) is clamped outside the sampling probe tube (1), the sampling probe tube (1) is pulled out, and the sealing plate (505) is clamped at the bottom of the sliding groove (502) to block the connecting tube (402);

the sealing assembly (5) comprises an annular groove (501), a sliding groove (502), a limiting ring (503), an annular barrier strip (504) and a sealing plate (505);

annular groove (501) have been seted up to sampling probe (1) outside, spout (502) have been seted up on mounting panel (401) top, connecting pipe (402) one end is corresponding to collect inner tube (403) internally mounted has spacing ring (503), annular blend stop (504) are installed to the inboard limit portion of spacing ring (503), spout (502) inside slidable mounting has closing plate (505).

4. The device for sampling the tail gas of the motor vehicle as claimed in claim 3, wherein the sliding groove (502) penetrates through the middle of the connecting pipe (402), an arc-shaped groove is formed in the bottom end of the sealing plate (505) corresponding to the annular groove (501), and the bottom end of the sealing plate (505) is clamped and fixed with the annular groove (501).

5. The motor vehicle exhaust gas sampling device according to claim 1, wherein the inlet end of the sampling probe (1) is provided with a fixing component (3);

the inner supporting plate (303) is connected with the clamping plate (305) to form an arc-shaped clamping groove, the side wall of the tail gas pipe of the motor vehicle is clamped with the arc-shaped clamping groove, the fixing bolt (307) is screwed, and the clamping plate (305) is fixed with the tail gas pipe of the motor vehicle;

the fixing assembly (3) comprises a collecting cover (301), a fixing frame (302), an inner supporting plate (303), a protective gasket (304), a clamping plate (305), a fixing block (306), a fixing bolt (307) and a rubber head (308);

the inlet end of sampling probe tube (1) is installed and is collected cover (301), collect cover (301) top and bottom and all install fixed frame (302), interior backup pad (303) are installed to the one end of fixed frame (302), the outer terminal surface veneer of interior backup pad (303) has protective pad (304), joint board (305) is installed to the tip of interior backup pad (303), the mid-mounting of joint board (305) has fixed block (306), fixed block (306) middle part threaded connection has fixing bolt (307), rubber head (308) are installed to fixing bolt (307) bottom.

6. The motor vehicle exhaust gas sampling device according to claim 5, wherein the fixing block (306) and the clamping plate (305) are respectively provided with a positioning screw hole at the middle part, and the fixing bolt (307) is in threaded connection with the inside of the positioning screw.

Images