CN215953565U

CN215953565U - Tail gas analyzer

Info

Publication number: CN215953565U
Application number: CN202122424141.4U
Authority: CN
Inventors: 张晴; 刘亚南; 孙广超; 武科洋
Original assignee: Henan New Net Testing Service Co ltd
Current assignee: Henan New Net Testing Service Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-03-04
Anticipated expiration: 2031-10-08

Abstract

The utility model relates to an exhaust gas analyzer, which comprises a host, wherein a collecting pipeline is communicated with the host, the collecting pipeline is communicated with a sampling tube, a sampling probe is arranged at the tail end of the sampling tube, and a fixing device is arranged at one end of the sampling tube, which is far away from the sampling probe; the fixing device comprises a fixing tube, a fixing ring, elastic support bars and sliding blocks, wherein the fixing ring is fixedly connected to the upper portion of the fixing tube, the elastic support bars are uniformly arranged along the fixing ring, the top ends of the support bars are fixedly connected with the fixing ring, the bottom ends of the elastic support bars are fixedly connected with the fixing ring, the sliding blocks are arranged on the lower portion of the fixing tube, the fixing ring is sleeved outside the sliding blocks and rotatably connected with the sliding blocks, external threads are arranged outside the fixing tube, internal threads are arranged inside the sliding blocks, and the sliding blocks are movably connected with the external threads in a matched mode through the internal threads; the problem of among the tail gas analysis appearance sampling process among the prior art sample tube easily pollute and fix insecure is solved effectively.

Description

Tail gas analyzer

Technical Field

The utility model relates to the technical field of automobile exhaust analysis equipment, in particular to an exhaust analyzer.

Background

With the rapid increase of the number of motor vehicles, atmospheric pollution tends to change from soot to mixed pollution of soot and motor vehicle exhaust, the proportion of pollution caused by motor vehicle exhaust emission in air pollution tends to rise year by year, main pollutants of motor vehicle exhaust comprise carbon monoxide (CO), Hydrocarbon (HC) and Nitrogen Oxide (NOX), and the like, and after the pollutants are accumulated in the air to a certain degree, under the action of sunlight, the nitrogen compound and the hydrocarbon react to generate nitrogen dioxide (NO)₂) And ozone (O)₃) The two substances are insoluble in water, are absorbed into human bodies and are driven to directly enter the lung for a long time, toxic edema can be caused when the concentration is high, and denatured hemoglobin can be formed when the toxic edema enters blood, so that tissues are anoxic, and the harm to the health of people is great;

the automobile exhaust emission analyzer is an instrument for detecting and analyzing the exhaust emitted by an automobile when the automobile engine normally operates, so as to judge whether the automobile engine normally works and whether the discharged harmful gas exceeds the standard, and is an effective tool for controlling the emission pollution of the automobile exhaust.

When placing sampling probe in automobile exhaust duct through the sampling tube in prior art and taking a sample, the fixing device of fixed sampling tube usually is the clip pattern, presss from both sides the sampling tube tightly on the exhaust duct inner wall, because it has a large amount of oil smoke and carbon deposit to adhere to on the exhaust duct inner wall, can be infected with oil smoke and carbon deposit on the sampling tube after the sample is accomplished, causes the sampling tube surface to be infected with the stain, difficult clearance, and the fixed mode among the prior art is at the easy landing of sampling in-process.

Accordingly, the present invention provides an exhaust gas analyzer to solve this problem.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the tail gas analyzer, which effectively solves the problems that a sampling pipe is easily polluted and is not firmly fixed in the sampling process of the tail gas analyzer in the prior art.

The utility model relates to an exhaust gas analyzer realized by the following technical scheme, which comprises a host, wherein a collecting pipeline is communicated with the host, the collecting pipeline is communicated with a sampling tube, the tail end of the sampling tube is provided with a sampling probe, and one end of the sampling tube, which is far away from the sampling probe, is provided with a fixing device;

fixing device includes solid fixed tube, retainer plate, solid fixed ring, elastic support bar, sliding block, gu fixed tube upper portion fixedly connected with retainer plate, it is a plurality of elastic support bar evenly sets up along the retainer plate, support bar top and retainer plate fixed connection, elastic support bar bottom and solid fixed ring fixed connection, the sliding block sets up in gu fixed tube lower part, gu fixed ring cover establishes the sliding block outside and rotates with the sliding block to be connected, gu fixed outside of tubes portion sets up the external screw thread, the inside internal thread that sets up of sliding block, the sliding block passes through internal thread and external screw-thread fit swing joint.

In order to further optimize the present invention, the following technical solutions may be preferably selected:

preferably, the lower part of the fixing tube is provided with a threaded hole, a set screw is arranged in the threaded hole, and the fixing device is detachably connected to the sampling tube by screwing the set screw inwards to compress the sampling tube.

Preferably, the set screw is provided with a cushion block corresponding to the position of the fixed tube, the tail end of the set screw compresses the cushion block, the cushion block is arranged in an arc shape, and the radian of the cushion block is matched with the surface of the sampling tube.

Preferably, a first groove is formed in the inner side of the fixing pipe corresponding to the position of the cushion block, and the cushion block can be placed in the first groove.

Preferably, a blind hole is formed in the first groove, a spring is arranged in the blind hole, one end of the spring is fixedly connected with the bottom end of the blind hole, and the other end of the spring is fixedly connected with the cushion block.

Preferably, the cushion block is provided with a second groove corresponding to the compression position of the set screw, and the tail end of the set screw is arranged in the second groove.

Preferably, the number of the elastic supporting strips is 3-6.

Preferably, a friction block is arranged in the middle of the outer side of the elastic supporting strip.

Preferably, a plurality of twisting rods are uniformly arranged along the circumferential direction of the sliding block.

Preferably, set up the ring channel on the sliding block, gu fixed ring sets up in the ring channel with the sliding block.

The utility model has the beneficial effects that:

through setting up fixing device, fixing device is including the solid fixed tube, the retainer plate, gu fixed ring, the elastic support strip, the sliding block, the solid fixed tube sets up on the sampling tube, when fixed sampling tube, twist and move the sliding block, make the sliding block move to the retainer plate direction, the sliding block drives the elastic support strip and warp to the outside arch, a plurality of elastic support strips warp simultaneously, thereby establish the collection pipeline card at the blast pipe middle part, thereby effectively reduced the collection pipeline and be infected with oil smoke and carbon deposition chance, can twist the degree of moving the sliding block to the retainer plate displacement through control simultaneously, thereby adjust the outside protruding degree of warping of elastic strip, thereby reach the effect of fixed collection pipeline.

Drawings

FIG. 1 is a first schematic view of the present invention;

FIG. 2 is a schematic view of a fixing device according to the present invention;

FIG. 3 is a schematic view, partially in section, of a fastening device according to the present invention;

fig. 4 is an enlarged view of a portion a of fig. 3.

Description of the reference numerals

1. A host; 2. a collection pipe; 3. a sampling tube; 4. a sampling probe; 5. a fixing device; 51. a fixed tube; 52. a stationary ring; 53. a fixing ring; 54. an elastic support bar; 55. a slider; 56. a threaded hole; 57. tightening the screw; 6. cushion blocks; 7. in the first groove; 8. blind holes; 9. a spring; 10. a second groove; 11. a friction block; 12. the rod is twisted.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-4, an exhaust gas analyzer comprises a main machine 1, wherein the main machine 1 is communicated with a collecting pipeline 2, the collecting pipeline 2 is communicated with a sampling tube 3, the tail end of the sampling tube 3 is provided with a sampling probe 4, and one end of the sampling tube 3, which is far away from the sampling probe 4, is provided with a fixing device 5 for fixing the collecting pipeline on an exhaust pipeline of an automobile;

the fixing device 5 comprises a fixing pipe 51, a fixing ring 52, a fixing ring 53, elastic support bars 54 and sliding blocks 55, the fixing ring 52 is fixedly connected to the upper part of the fixing pipe 51, a plurality of elastic support bars 54 are uniformly arranged along the fixing ring 52, the number of the elastic support bars 54 is 3-6, the fixed fastening degree cannot be ensured if the number is too small, the emission of automobile exhaust can be influenced if the number is too large, the top end of each support bar is fixedly connected with the fixing ring 52, the bottom end of each elastic support bar 54 is fixedly connected with the fixing ring 53, the sliding blocks 55 are arranged at the lower part of the fixing pipe 51, the fixing ring 53 is sleeved outside the sliding blocks 55 and is rotatably connected with the sliding blocks 55, annular grooves 13 are arranged on the sliding blocks 55, the fixing rings 53 are arranged in the annular grooves 13 and are rotatably connected with the sliding blocks 55, external threads are arranged outside the fixing pipe 51, internal threads are arranged inside the sliding blocks 55, and the sliding blocks 55 are movably connected with the external threads through matching with the internal threads, when the collecting pipeline is fixed, the sliding block 55 is screwed, the elastic supporting strip 54 is driven by the sliding block 55 to protrude outwards and then is clamped in the exhaust pipeline, the sliding block 55 is screwed to move towards the direction far away from the fixing ring 52 after the collecting is finished, and the elastic supporting strip 54 is deformed and restored, so that the collecting pipeline is taken out.

The lower part of the fixing tube 51 is provided with a threaded hole 56, a set screw 57 is arranged in the threaded hole 56, the sampling tube 3 is pressed by screwing the set screw 57 inwards to detachably connect the fixing device 5 on the sampling tube 3, and the detachable mode is set to conveniently replace the whole fixing device.

In order to avoid holding screw 57 end to compress tightly damaged sampling tube 3 when leading to sampling tube 3, set screw 57 corresponds fixed tube 51 position and sets up cushion 6, and holding screw 57 end compresses tightly cushion 6, and cushion 6 is the arc setting, 6 radians of cushion and sampling tube 3 surface looks adaptations.

In order to avoid the pad 6 causing difficulty in installing the fixing device, a first groove is formed in the inner side of the fixing tube 51 corresponding to the position of the pad 6, and the pad 6 can be placed in the first groove 7.

7 set up blind hole 8 in the first recess, set up spring 9 in the blind hole 8, 9 one end of spring and 8 bottom fixed connections of blind hole, the spring 9 other end and 6 fixed connection of cushion, the effect is when unscrewing holding screw 57, and spring 9 stimulates the cushion to first recess in to make fixing device 5 install smoothly on sampling tube 3.

In order to avoid the sliding of the spacer 6 along the surface of the sampling tube 3 when the set screw 57 is screwed, the second recess 10 is provided in the spacer 6 corresponding to the position where the set screw 57 is pressed, and the end of the set screw 57 is disposed in the second recess 10.

In order to increase the fixing stability of the elastic supporting bar 54, a friction block 11 is provided at a middle position outside the elastic supporting bar 54.

In order to facilitate the screwing of the slide block 55, a plurality of screwing rods 12 are uniformly provided along the circumferential direction of the slide block 55.

During the use specifically, when fixed collecting pipe, twist and move the sliding block, drive the outside protruding back card of elastic support bar through the sliding block and establish in exhaust duct, collect and move the direction motion of sliding block to keeping away from the retainer plate through twisting after accomplishing, elastic support bar warp and resumes to will collect the pipeline and take out.

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 or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A tail gas analyzer comprises a host (1), wherein a collecting pipeline (2) is communicated with the host (1), the collecting pipeline (2) is communicated with a sampling tube (3), and a sampling probe (4) is arranged at the tail end of the sampling tube (3), and is characterized in that a fixing device (5) is arranged at one end, far away from the sampling probe (4), of the sampling tube (3);

fixing device (5) are including solid fixed tube (51), retainer plate (52), solid fixed ring (53), elastic support bar (54), sliding block (55), gu fixed tube (51) upper portion fixedly connected with retainer plate (52), it is a plurality of elastic support bar (54) evenly sets up along retainer plate (52), support bar top and retainer plate (52) fixed connection, elastic support bar (54) bottom and solid fixed ring (53) fixed connection, sliding block (55) set up in gu fixed tube (51) lower part, gu fixed ring (53) cover is established and is connected with sliding block (55) rotation in sliding block (55) outside, gu fixed tube (51) outside sets up the external screw thread, the inside internal thread that sets up of sliding block (55), sliding block (55) are through internal thread and external screw thread fit swing joint.

2. An exhaust gas analyzer according to claim 1, wherein a threaded hole (56) is formed in a lower portion of the fixing tube (51), a set screw (57) is formed in the threaded hole (56), and the fixing device (5) is detachably connected to the sampling tube (3) by screwing the set screw (57) inward to press the sampling tube (3).

3. The exhaust gas analyzer according to claim 2, wherein the set screw (57) is provided with a cushion block (6) corresponding to the position of the fixed pipe (51), the tail end of the set screw (57) presses the cushion block (6), the cushion block (6) is arranged in an arc shape, and the radian of the cushion block (6) is matched with the surface of the sampling pipe (3).

4. An exhaust gas analyzer according to claim 3, characterized in that the inner side of the fixed pipe (51) is provided with a first groove corresponding to the position of the pad (6), and the pad (6) can be placed in the first groove (7).

5. The exhaust gas analyzer according to claim 4, wherein a blind hole (8) is formed in the first groove (7), a spring (9) is arranged in the blind hole (8), one end of the spring (9) is fixedly connected with the bottom end of the blind hole (8), and the other end of the spring (9) is fixedly connected with the cushion block (6).

6. An exhaust gas analyzer according to claim 3, characterized in that the block (6) is provided with a second recess (10) corresponding to the pressing position of the set screw (57), and the end of the set screw (57) is arranged in the second recess (10).

7. The exhaust gas analyzer according to claim 1, wherein the number of the elastic support strips (54) is 3-6.

8. The exhaust gas analyzer according to claim 1, wherein the elastic support strip (54) is provided with a friction block (11) at a middle position outside.

9. An exhaust gas analyzer according to claim 1, characterized in that a plurality of twist bars (12) are arranged uniformly along the circumference of the sliding block (55).

10. An exhaust gas analyzer according to claim 1, wherein the sliding block (55) is provided with an annular groove (13), and the fixing ring (53) is disposed in the annular groove (13) and is rotatably connected with the sliding block (55).