CN210090122U

CN210090122U - Motor vehicle exhaust gas tester

Info

Publication number: CN210090122U
Application number: CN201920724851.9U
Authority: CN
Inventors: 戴洪波
Original assignee: Anhui Anchang Motor Vehicle Testing Co Ltd
Current assignee: Anhui Anchang Motor Vehicle Testing Co Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-02-18
Anticipated expiration: 2029-05-20

Abstract

The utility model relates to a motor vehicle exhaust tail gas tester, which comprises a tester body, a sampling probe inserted in a motor vehicle exhaust pipe, a connecting pipe used for connecting the sampling probe and the tester body, and a clamping component used for clamping the sampling probe; the clamping assembly comprises a placing pipe, connecting pieces symmetrically fixed on two sides of the placing pipe and clamping rings fixed with the connecting pieces through first bolts, and the placing pipe is a hollow semicircular pipe; the clamping ring is a semicircular ring, fixing pieces are fixed at two ends of the clamping ring and are parallel to the connecting piece, a first through hole is formed in the connecting piece, a second through hole is correspondingly formed in the fixing piece, the first bolt penetrates through the first through hole and the second through hole, and a first nut is connected to the first bolt in a threaded mode. The utility model discloses a set up the centre gripping subassembly that is used for centre gripping sampling probe for sampling probe is difficult for discharging fume from the motor vehicle and manages and drop, has the effect that detects accuracy, detection efficiency height.

Description

Motor vehicle exhaust gas tester

Technical Field

The utility model belongs to the technical field of tail gas check out test set's technique and specifically relates to a motor vehicle discharges tail gas tester is related to.

Background

The motor vehicle is an important modern vehicle, with the rapid development of the motor vehicle industry, the motor vehicle emission has become the main source of air pollution in China, and the harmful substances discharged by the motor vehicle tail gas comprise HC (hydrocarbon), CO (carbon monoxide) and NO_X(nitrogen oxides) and the like, not only affecting the air environmentThe quality and direct harm to the health of people are important reasons for dust haze and photochemical smog pollution. Today, environmental problems are increasingly highlighted and green maintenance is vigorously advocated in the industry, and effective monitoring of exhaust emission is also increasingly emphasized. The tester for tail gas discharged from motor vehicle is used to detect the content indexes of various gas elements in tail gas of motor vehicle.

Chinese patent No. CN201000425Y discloses a device for analyzing and measuring tail gas of a motor vehicle, which comprises four parts, namely a tail gas collecting part, a tail gas analyzing part, a tail gas indicating part and a correcting device, wherein the tail gas collecting part comprises a detecting head, a filter, a water separator, a filter, a pump and a drainage pump; the tail gas analysis part consists of an infrared light source, a measuring chamber, a revolution surface and a detection chamber; the exhaust indicating part comprises a CO display table and an HC display table; the correction device comprises a zero point adjustment button, an HC standard adjustment knob, an HC zero point adjustment knob, a CO standard adjustment knob, a CO zero point adjustment knob and a correction switch. The device for analyzing and measuring the tail gas of the motor vehicle can continuously detect and analyze the concentration of CO and HC contained in the tail gas of the motor vehicle.

The above prior art solutions have the following drawbacks: the detection head is inserted into the smoke exhaust pipe of the motor vehicle, and when the throttle of the motor vehicle is increased, if the detection head is not held by hands, the detection head is easily blown off from the smoke exhaust pipe by airflow in the smoke exhaust pipe, so that the detection data are inaccurate. If the detection head is held by the hands of detection personnel, because the motor vehicle exhaust pipe is low in height, the detection personnel need squat down to operate, and the exhaust tail gas of the motor vehicle can be easily breathed to cause damage to the bodies of the detection personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a motor vehicle discharges tail gas tester is used for the centre gripping subassembly of centre gripping sampling probe through the setting for the sampling probe is difficult for discharging fume from the motor vehicle and is taken off in managing, has the effect that detects accuracy, detection efficiency height.

The above technical purpose of the present invention can be achieved by the following technical solutions: a motor vehicle exhaust tail gas tester comprises a tester body, a sampling probe inserted in a motor vehicle exhaust pipe, a connecting pipe used for connecting the sampling probe and the tester body, and a clamping component used for clamping the sampling probe; the clamping assembly comprises a placing pipe, connecting pieces symmetrically fixed on two sides of the placing pipe and clamping rings fixed with the connecting pieces through first bolts, and the placing pipe is a hollow semicircular pipe; the clamping ring is a semicircular ring, fixing pieces are fixed at two ends of the clamping ring and are parallel to the connecting piece, a first through hole is formed in the connecting piece, a second through hole is correspondingly formed in the fixing piece, the first bolt penetrates through the first through hole and the second through hole, and a first nut is connected to the first bolt in a threaded mode.

Through adopting above-mentioned technical scheme, wait to detect that the motor vehicle drives into the detection area, the sampling probe is placed in placing the pipe, then is close to the motor vehicle and discharges fume the pipe one end stretch into the motor vehicle and discharge fume intraductally, and after connection piece and stationary blade aligned, first bolt passed first through-hole and second through-hole, screwed up first nut. So set up, can fix the sampling probe between placing pipe and snap ring, the sampling probe can not follow and discharge fume intraductally and drop, even increase the throttle, the intraductal air current increase of discharging fume, the sampling probe is also difficult for dropping.

The utility model discloses further set up to: and the arc-shaped side wall of the clamping ring is symmetrically and threadedly connected with a tightening bolt, and an arc-shaped plate is fixed at one end of the tightening bolt close to the placing pipe.

Through adopting above-mentioned technical scheme, rotatory tight bolt that supports for the arc can support tightly with the sampling probe, can further fix the sampling probe.

The utility model discloses further set up to: the placing pipe comprises a first semicircular pipe and a second semicircular pipe hinged to the first semicircular pipe, and the first semicircular pipe leans on the second semicircular pipe to be fixed through a fixing assembly.

Through adopting above-mentioned technical scheme, the motor vehicle is discharged fume and is managed except that the horizontally, and first semicircle pipe and the articulated setting of second semicircle pipe in addition can change the angle between first semicircle pipe and the second semicircle pipe.

The utility model discloses further set up to: the fixing assembly comprises first connecting blocks symmetrically fixed at one end, close to the second semicircular pipe, of the first semicircular pipe, first connecting holes formed in the first connecting blocks, second connecting blocks symmetrically fixed at one end, close to the first semicircular pipe, of the second semicircular pipe, second connecting holes formed in the second connecting blocks, second bolts used for fixing the first connecting blocks and the second connecting blocks and second nuts in threaded connection with the second bolts; the length direction of the first connecting block is consistent with that of the first semicircular pipe, the length direction of the second connecting block is consistent with that of the second semicircular pipe, and the second bolt penetrates through the first connecting hole and the second connecting hole.

Through adopting above-mentioned technical scheme, after adjusting the angle between first semicircle pipe and the second semicircle pipe, the second bolt passes first connecting hole, screws up the second nut.

The utility model discloses further set up to: one end of the first semicircular pipe, which is far away from the second semicircular pipe, is provided with an adjusting component for adjusting the height of the first semicircular pipe.

Through adopting above-mentioned technical scheme, the high difference of different motor vehicles pipe of discharging fume sets up the height that adjusting part can adjust first semicircle pipe, through the height of adjusting first semicircle pipe to change the height of sampling probe, so set up, can be suitable for the motor vehicle of multiple pipe height of discharging fume and use, enlarge application scope.

The utility model discloses further set up to: the adjusting assembly comprises a mounting plate fixed at one end of the first semicircular tube, which is far away from the first connecting block, a bearing plate arranged below the mounting plate, a bracket for fixing the bearing plate, a screw rod in threaded connection with the mounting plate and a guide rod in sliding connection with the mounting plate, the screw rod is vertically arranged with the upper end surface of the mounting plate, and the lower end of the screw rod is rotationally connected with the bearing plate; the guide rods are fixed on the upper end face of the bearing plate, the guide rods are perpendicular to the screw rod, the number of the guide rods is two, and the two guide rods are located on two sides of the screw rod respectively.

Through adopting above-mentioned technical scheme, the drive lead screw rotates, because of mounting panel and lead screw threaded connection, under the spacing of guide arm, the mounting panel can't rotate, only can slide along the length direction of guide arm. The mounting panel slides to the direction that is close to the loading board, and the height step-down of first semicircle pipe is like the direction slip of keeping away from the loading board, and the height of first semicircle pipe becomes high. And adjusting the heights of the first semicircular pipe and the second semicircular pipe according to the height of the motor vehicle smoke exhaust pipe to be detected, so that the sampling probe can be conveniently inserted into the motor vehicle smoke exhaust pipe.

The utility model discloses further set up to: and a hand wheel for driving the screw rod to rotate is fixed at one end of the screw rod, which is far away from the bearing plate.

Through adopting above-mentioned technical scheme, rotate the hand wheel, be convenient for drive lead screw rotates.

The utility model discloses further set up to: and a limiting plate is fixed at one end of the guide rod, which is far away from the bearing plate.

Through adopting above-mentioned technical scheme, can avoid the mounting panel to break away from the guide arm in-process that upwards slides at the fixed limiting plate in guide arm upper end.

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

1. the sampling probe is placed in the placing pipe, one end, close to the motor vehicle smoke exhaust pipe, of the sampling probe extends into the motor vehicle smoke exhaust pipe, after the connecting sheet is aligned with the fixing sheet, the first bolt penetrates through the first through hole and the second through hole, the first nut is screwed, and by the arrangement, the sampling probe can be fixed between the placing pipe and the clamping ring and cannot fall from the smoke exhaust pipe;

2. the first semicircular pipe and the second semicircular pipe are hinged, and the angle between the first semicircular pipe and the second semicircular pipe is adjustable, so that the smoke exhaust pipe is suitable for motor vehicles with various smoke exhaust pipes;

3. the height difference of different motor vehicles pipe of discharging fume sets up the height that adjusting part can adjust first semicircle pipe, through the height of adjusting first semicircle pipe to change the height of sampling probe, so set up, can be suitable for the motor vehicle use of multiple pipe height of discharging fume, enlarge application scope.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the utility model after hiding the tester body;

fig. 3 is a schematic structural diagram of the fixing assembly of the present invention.

Reference numerals: 1. a tester body; 2. sampling a probe; 3. a connecting pipe; 4. a clamping assembly; 41. placing a tube; 411. a first semi-circular tube; 412. a second semi-circular tube; 42. connecting sheets; 421. a first through hole; 43. a snap ring; 44. a fixing sheet; 441. a second through hole; 45. a first bolt; 46. a first nut; 47. tightly abutting against the bolt; 48. an arc-shaped plate; 5. an adjustment assembly; 51. mounting a plate; 52. a carrier plate; 53. a support; 54. a screw rod; 541. a hand wheel; 55. a guide bar; 551. a limiting plate; 6. a fixing assembly; 61. a first connection block; 62. a first connection hole; 63. a second connecting block; 64. a second connection hole; 65. a second bolt; 66. a second nut.

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 a motor vehicle discharges tail gas tester, including tester body 1, be arranged in inserting the motor vehicle discharge fume sampling probe 2 in the pipe, be used for connecting sampling probe 2 and tester body 1 connecting pipe 3, be used for centre gripping sampling probe 2's centre gripping subassembly 4 and be used for adjusting the adjusting part 5 of sampling subassembly height. The connecting pipe 3 is a hose, one end of the connecting pipe 3 is connected with the tester body 1, and the other end is connected with the sampling probe 2.

As shown in fig. 2, the clamping assembly 4 includes a placing tube 41, a connecting piece 42, a snap ring 43, a fixing piece 44, a first bolt 45, and a first nut 46, and the placing tube 41 is a hollow semicircular tube. The connecting sheets 42 are symmetrically fixed on two sides of the placing pipe 41, the clamping ring 43 is in a semicircular arc shape, two fixing sheets 44 are arranged, the two fixing sheets 44 are symmetrically fixed on two ends of the clamping ring 43 respectively, and the fixing sheets 44 are parallel to the connecting sheets 42. The connecting piece 42 is provided with a first through hole 421, the fixing piece 44 is provided with a second through hole 441, the first bolt 45 penetrates through the first through hole 421 and the second through hole 441, and the first nut 46 is in threaded connection with the first bolt 45. The arc-shaped side wall of the clamping ring 43 is symmetrically and threadedly connected with a clamping bolt 47, one end, close to the placing pipe 41, of the clamping bolt 47 is fixed with an arc-shaped plate 48, and the clamping bolt 47 is rotated, so that the arc-shaped plate 48 can be clamped with the sampling probe 2, and the sampling probe 2 can be further fixed.

As shown in fig. 2, the placing tube 41 includes a first semicircular tube 411 and a second semicircular tube 412 hinged to the first semicircular tube 411, and the first semicircular tube 411 and the second semicircular tube 412 are fixed by the fixing component 6. With reference to fig. 3, the fixing assembly 6 includes a first connecting block 61, a first connecting hole 62, a second connecting block 63, a second connecting hole 64, a second bolt 65 and a second nut 66, the first connecting block 61 is provided with two, two first connecting blocks 61 are respectively and symmetrically fixed at one end of the first semicircular tube 411 close to the second semicircular tube 412, the first connecting hole 62 is opened on the first connecting block 61, and the cross section of the first connecting hole 62 is circular. The number of the second connecting blocks 63 is two, another second connecting block 63 is fixed at one end of the second semicircular pipe 412 close to the first semicircular pipe 411, the second connecting hole 64 is formed in the second connecting block 63, and the cross section of the second connecting hole 64 is circular. The second bolt 65 passes through the first connection hole 62 and the second connection hole 64, and the second nut 66 is threadedly coupled to the second bolt 65. Besides being horizontal, the motor vehicle smoke exhaust pipe also comprises a first semicircular pipe 411 and a second semicircular pipe 412 which are hinged, and the angle between the first semicircular pipe 411 and the second semicircular pipe 412 can be changed. After the angle between the first semicircular tube 411 and the second semicircular tube 412 is adjusted, the second bolt 65 passes through the first connection hole 62, and the second nut 66 is tightened.

As shown in fig. 2, the adjusting assembly 5 includes a mounting plate 51, a bearing plate 52, a bracket 53, a screw 54 and a guide rod 55, the mounting plate 51 is rectangular plate-shaped, and one end of the first semicircular tube 411, which is far away from the second semicircular tube 412, is fixed to the mounting plate 51. The carrier plate 52 has a circular plate shape, the upper end surface of the carrier plate 52 is disposed parallel to the upper end surface of the mounting plate 51, and the bracket 53 is fixed to the bottom surface of the carrier plate 52. The screw rod 54 is perpendicular to the upper end face of the mounting plate 51 and is in threaded connection with the mounting plate 51, the lower end of the screw rod 54 is rotatably connected with the bearing plate 52, and a hand wheel 541 for driving the screw rod 54 to rotate is fixed at one end of the screw rod 54 far away from the bearing plate 52. Two guide rods 55 are arranged, the two guide rods 55 are respectively positioned at two sides of the screw rod 54, the length direction of the guide rods 55 is consistent with that of the screw rod 54, the guide rods 55 are connected with the mounting plate 51 in a sliding mode, and the lower ends of the guide rods 55 are fixed on the upper end face of the bearing plate 52. The hand wheel 541 is rotated to drive the screw 54 to rotate, and the mounting plate 51 cannot rotate but can only slide along the length direction of the guide rod 55 under the limit of the guide rod 55 because the mounting plate 51 is in threaded connection with the screw 54. The mounting plate 51 slides in a direction toward the carrier plate 52, the height of the first semicircular tube 411 becomes lower, and the height of the first semicircular tube 411 becomes higher as it slides in a direction away from the carrier plate 52. According to the height of the motor vehicle smoke exhaust pipe to be detected, the heights of the first semicircular pipe 411 and the second semicircular pipe 412 are adjusted, so that the sampling probe 2 can be conveniently inserted into the motor vehicle smoke exhaust pipe. A limiting plate 551 is fixed at one end of the guide rod 55 far away from the bearing plate 52, the cross-sectional area of the limiting plate 551 is larger than that of the guide rod 55, and the limiting plate 551 is fixed at the upper end of the guide rod 55 to prevent the mounting plate 51 from being separated from the guide rod 55 in the upward sliding process.

The implementation principle of the embodiment is as follows: when a motor vehicle to be detected drives into a detection area, the sampling probe 2 is placed in the placing pipe 41, the angle between the first semicircular pipe 411 and the second semicircular pipe 412 is adjusted according to the shape of a vehicle smoke exhaust pipe, the height of the mounting plate 51 is adjusted according to the height of the smoke exhaust pipe, so that the height of the sampling probe 2 is adjusted, then one end, close to the motor vehicle smoke exhaust pipe, of the sampling probe 2 extends into the motor vehicle smoke exhaust pipe, after the connecting sheet 42 is aligned with the fixing sheet 44, the first bolt 45 penetrates through the first through hole 421 and the second through hole 441, and the first nut 46 is screwed tightly. So set up, can fix sampling probe 2 and place between pipe 41 and the snap ring 43, sampling probe 2 can not follow and discharge fume intraductally and drop, even increase the throttle, the intraductal air current increase of discharging fume, sampling probe 2 also is difficult for dropping.

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 a motor vehicle discharges tail gas tester, includes tester body (1), is arranged in inserting sampling probe (2) in the motor vehicle pipe of discharging fume, is used for connecting pipe (3) of sampling probe (2) and tester body (1) and is used for centre gripping subassembly (4) of centre gripping sampling probe (2), its characterized in that: the clamping assembly (4) comprises a placing pipe (41), connecting pieces (42) symmetrically fixed on two sides of the placing pipe (41) and clamping rings (43) fixed with the connecting pieces (42) through first bolts (45), and the placing pipe (41) is a hollow semicircular pipe; the utility model discloses a clamp ring, including snap ring (43), both ends of snap ring (43) all are fixed with stationary blade (44), stationary blade (44) with connection piece (42) are parallel, first through-hole (421) have been seted up on connection piece (42), second through-hole (441) have been seted up to correspondence on stationary blade (44), first bolt (45) pass first through-hole (421) with second through-hole (441), threaded connection has first nut (46) on first bolt (45).

2. The vehicle exhaust gas tester according to claim 1, wherein: the arc-shaped side wall of the clamping ring (43) is symmetrically in threaded connection with a tightening bolt (47), and an arc-shaped plate (48) is fixed at one end, close to the placing pipe (41), of the tightening bolt (47).

3. The vehicle exhaust gas tester according to claim 1, wherein: the placing pipe (41) comprises a first semicircular pipe (411) and a second semicircular pipe (412) hinged to the first semicircular pipe (411), and the first semicircular pipe (411) is fixed to the second semicircular pipe (412) through a fixing component (6).

4. The vehicle exhaust gas tester according to claim 3, wherein: the fixing assembly (6) comprises a first connecting block (61) symmetrically fixed at one end, close to the second semicircular pipe (412), of the first semicircular pipe (411), a first connecting hole (62) formed in the first connecting block (61), a second connecting block (63) symmetrically fixed at one end, close to the first semicircular pipe (411), of the second semicircular pipe (412), a second connecting hole (64) formed in the second connecting block (63), a second bolt (65) used for fixing the first connecting block (61) and the second connecting block (63), and a second nut (66) in threaded connection with the second bolt (65); the length direction of the first connecting block (61) is consistent with the length direction of the first semicircular pipe (411), the length direction of the second connecting block (63) is consistent with the length direction of the second semicircular pipe (412), and the second bolt (65) penetrates through the first connecting hole (62) and the second connecting hole (64).

5. The vehicle exhaust gas tester according to claim 3, wherein: one end, far away from the second semicircular pipe (412), of the first semicircular pipe (411) is provided with an adjusting component (5) for adjusting the height of the first semicircular pipe (411).

6. The vehicle exhaust gas tester according to claim 5, wherein: the adjusting assembly (5) comprises a mounting plate (51) fixed to one end, far away from the first connecting block (61), of the first semicircular tube (411), a bearing plate (52) arranged below the mounting plate (51), a support (53) used for fixing the bearing plate (52), a screw rod (54) in threaded connection with the mounting plate (51) and a guide rod (55) in sliding connection with the mounting plate (51), the screw rod (54) is perpendicular to the upper end face of the mounting plate (51), and the lower end of the screw rod (54) is rotatably connected with the bearing plate (52); the guide rods (55) are fixed on the upper end face of the bearing plate (52), the guide rods (55) are perpendicular to the screw rod (54), two guide rods (55) are arranged, and the two guide rods (55) are located on two sides of the screw rod (54) respectively.

7. The vehicle exhaust gas tester according to claim 6, wherein: and a hand wheel (541) for driving the screw rod (54) to rotate is fixed at one end of the screw rod (54) far away from the bearing plate (52).

8. The vehicle exhaust gas tester according to claim 6, wherein: and a limiting plate (551) is fixed at one end of the guide rod (55) far away from the bearing plate (52).