CN221148220U

CN221148220U - Tail gas detects uses collecting bag

Info

Publication number: CN221148220U
Application number: CN202322515867.8U
Authority: CN
Inventors: 吴方堃
Original assignee: Yunnan Jingyi Motor Vehicle Testing Management Co ltd
Current assignee: Yunnan Jingyi Motor Vehicle Testing Management Co ltd
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-06-14
Anticipated expiration: 2033-09-15

Abstract

The utility model provides a collecting bag for tail gas detection, which relates to the technical field of tail gas detection and comprises a collecting bag body and an air guide mechanism, wherein a screw pipe is arranged at the upper end of the collecting bag body, the air guide mechanism is arranged at the upper end of the screw pipe, a box cover is arranged at one end of the air guide mechanism, a box body is arranged at the lower end of the box cover, an air extraction mechanism is arranged at one side of the box body, the air guide mechanism comprises a connecting piece and an air guide piece, the connecting piece is arranged at the upper end of the screw pipe, and the air guide piece is arranged at the other end of the connecting piece. This tail gas detects with collecting bag, through the setting of air guide mechanism, the hose can adapt to multiple equipment height, through the setting of valve, can the gas collection of manual control tail gas collecting bag, twist after the tail gas is collected and move the valve can, simple structure facilitate the use, be provided with spacing hole on the case lid moreover, install the spacing collar on the valve port pipe, need not handheld collecting bag, practiced thrift the human cost, simple structure, convenient to detach replaces.

Description

Tail gas detects uses collecting bag

Technical Field

The utility model relates to the technical field of tail gas detection, in particular to a collecting bag for tail gas detection.

Background

The exhaust gas detecting and collecting bag is a device for collecting and measuring exhaust gas of a motor vehicle, is generally used as an accessory of an exhaust gas analyzer for detecting exhaust gas emission components and concentration of the vehicle, is generally made of flexible materials such as special rubber or polymer, has good air tightness and chemical resistance, can obtain important information about the exhaust gas emission of the vehicle, such as the type, content and concentration of the exhaust gas, and is helpful for monitoring whether the vehicle meets the emission standard, evaluating the environmental protection performance of the vehicle, and controlling and improving the exhaust gas emission.

Through the search, the utility model of patent number "CN215953137U" provides "a collection bag for tail gas detection, including collection bag, connecting pipe and sampling component, the connecting pipe is located on the collection bag and tip intercommunication collection bag, the connecting pipe is located two sets of, sampling component connects in the connecting pipe. The utility model belongs to the technical field of gas collection, and particularly relates to a collection bag for tail gas detection, which can improve detection accuracy. However, in the use process, the inner control ball cannot be stably placed on the ground due to the ball body, and the handheld work usually consumes more labor cost, and the equipment cannot be compatible with various working environments due to the fact that the height adjusting mechanism is not arranged, so that the exhaust gas exhausted from the exhaust gas exhaust ports with different heights cannot be collected, and the adaptability is low.

Thus, we provide a collection bag for exhaust gas detection.

Disclosure of utility model

The utility model aims to provide a collecting bag for tail gas detection, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the collecting bag for tail gas detection comprises a collecting bag body and an air guide mechanism, wherein a screw pipe is arranged at the upper end of the collecting bag body, the air guide mechanism is arranged at the upper end of the screw pipe, a box cover is arranged at one end of the air guide mechanism, a box body is arranged at the lower end of the box cover, and an air exhaust mechanism is arranged at one side of the box body;

The air guide mechanism comprises a connecting piece and an air guide piece, wherein the connecting piece is arranged at the upper end of the screw pipe, and the air guide piece is arranged at the other end of the connecting piece.

Preferably, the connecting piece comprises a valve port pipe, a limit ring, a valve, a connecting pipe and a bayonet, wherein the valve port pipe is arranged on the outer side of the screw pipe in a threaded manner, the limit ring is fixedly arranged on the outer side of the valve port pipe, the valve is rotatably arranged on one side of the valve port pipe, the connecting pipe is arranged on the upper end of the valve port pipe in a threaded manner, and the bayonet is arranged on the upper end of the connecting pipe.

Preferably, the outside of the valve is provided with a vent hole, and one end of the valve is provided with a handle.

Preferably, the air guide piece comprises a rubber port, a hose and a tail gas port, the rubber port is arranged on the outer side of the bayonet, the hose is arranged on the inner side of the rubber port, and the tail gas port is arranged on the other end of the hose.

Preferably, a first groove is formed in one side of the box cover, a clamping piece is arranged on one side of the first groove, a limiting hole is formed in the upper surface of the box cover, and a rotating shaft is arranged on the other side of the box cover.

Preferably, a second groove is formed in one side of the box body, a buckle is fixedly arranged on the outer side of the second groove, and an air suction hole is formed in one side of the inner wall of the box body.

Preferably, the air extraction mechanism comprises a rubber ring, an air extraction pipe and an air extractor, the rubber ring is arranged on the inner side of the air extraction hole, the air extraction pipe is fixedly arranged on the inner side of the rubber ring, the air extractor is arranged on the other end of the air extraction pipe, a knob is arranged on one side of the air extractor, a display screen is arranged on the right side of the knob, a heat dissipation opening is arranged below the display screen, and a switch is arranged below the knob.

Compared with the prior art, the utility model has the beneficial effects that:

1. This tail gas detects with collecting bag, through the setting of air guide mechanism, the hose can adapt to multiple equipment height, through the setting of valve, can the gas collection of manual control tail gas collecting bag, twist after the tail gas is collected and move the valve can, simple structure facilitate the use, be provided with spacing hole on the case lid moreover, install the spacing collar on the valve port pipe, need not handheld collecting bag, practiced thrift the human cost, adopt threaded connection between the part, convenient to detach replaces.

2. The setting of the air extraction mechanism that passes through opens the air exhauster when collecting tail gas, and the air of box inside is taken away to the air extraction mechanism, produces the negative pressure for collecting the outside of bag body, and inside collecting the bag body was pressed into with tail gas from tail gas interface department, negative pressure bleed can produce negative pressure environment, compares in natural diffusion or malleation air inlet, and the negative pressure bleed can gather the sample more fast and effectively, and it can provide more stable air current, ensures accurate gas acquisition to avoid the external interference in the collection process, can prevent that external air, impurity or pollutant from getting into the sample, avoid sample pollution.

Drawings

FIG. 1 is a schematic view showing the appearance of a collection bag for detecting exhaust gas according to the present utility model;

FIG. 2 is a schematic view showing a closed state structure of a cover of the exhaust gas detecting collection bag according to the present utility model;

FIG. 3 is a schematic view of an air guide mechanism according to the present utility model;

FIG. 4 is a schematic diagram of the structure of the utility model in which the lid, the housing and the air extraction mechanism are combined.

Reference numerals in the drawings: 1. a collection bag body; 11. a screw tube; 2. an air guide mechanism; 21. a connecting piece; 211. a valve port tube; 212. a limit ring; 213. a valve; 2131. a vent hole; 2132. a handle; 214. a connecting pipe; 215. a bayonet; 22. an air guide; 221. a rubber port; 222. a hose; 223. a tail gas interface; 3. a case cover; 31. a groove I; 32. a clamping piece; 33. a limiting hole; 34. a rotating shaft; 4. a case; 41. a second groove; 42. a buckle; 43. an air suction hole; 5. an air extraction mechanism; 51. a rubber ring; 52. an exhaust pipe; 53. an air extractor; 531. a knob; 532. a display screen; 533. a heat radiation port; 534. and (3) a switch.

Detailed Description

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a tail gas detection is with collecting bag, includes collecting bag body 1 and air guide mechanism 2, and screw pipe 11 is installed to collecting bag body 1's upper end, and air guide mechanism 2 is installed to screw pipe 11's upper end, and case lid 3 is installed to air guide mechanism 2's one end, and box 4 is installed to case lid 3's lower extreme, and pumping mechanism 5 is installed to one side of box 4;

The air guide mechanism 2 comprises a connecting piece 21 and an air guide piece 22, wherein the connecting piece 21 is arranged at the upper end of the screw pipe 11, and the air guide piece 22 is arranged at the other end of the connecting piece 21.

Further, the connecting piece 21 includes valve port 211, spacing collar 212, valve 213, connecting pipe 214 and bayonet socket 215, the outside screw thread of screw pipe 11 installs valve port 211, the outside fixed mounting of valve port 211 has spacing collar 212, one side of valve port 211 rotates and installs valve 213, connecting pipe 214 is installed to the upper end screw thread of valve port 211, the bayonet socket 215 is installed to the upper end of connecting pipe 214, when needs control the break-make of fluid or gas, through the valve 213 that rotates valve port 211 inboard installation, can control the break-make of air current through its opening or closing, when valve 213 opens, fluid or gas can enter or leave connecting piece 21 through connecting pipe 214, otherwise, when valve 213 closes, fluid or gas can't flow through connecting piece 21, the effect of spacing collar 212 is to ensure that the range of motion of valve port 211 is restricted, do not surpass the position of settlement, can avoid valve 213 to surpass predetermined scope like this, and keep its indirectly connected collecting bag body 1 to work in the exact position, through bayonet socket 215, 214 can be safely and reliably connect to other equipment or system, ensure that the transmission of fluid or gas is not leak or the valve port takes place in the circumstances of the transmission, the circumstances of the loss of control of valve port or gas or the clearance, the connecting pipe 21, and the situation of the loss of control valve port 21, and the clearance between the connecting pipe 212 and the connecting piece 21, and the situation of the connecting piece are out of control, and the safety and the connecting piece is realized, and the safety and the connecting piece is out of the clearance, and the connecting piece is achieved, and the safety is achieved.

Further, the outside of the valve 213 is provided with the vent 2131, one end of the valve 213 is provided with the handle 2132, when the valve 213 rotates ninety degrees leftwards or rightwards, the vent 2131 of the valve 213 is staggered with the valve port tube 211 and the pipeline of the connecting tube 214, thereby achieving the function of controlling the on-off of air flow, and the handle 2132 plays an auxiliary gripping role, so that the use of staff is convenient.

Further, the air guide 22 includes the rubber mouth 221, the hose 222 and the tail gas interface 223, the rubber mouth 221 is installed in the outside of bayonet 215, the hose 222 is installed to the inboard of rubber mouth 221, the tail gas interface 223 is installed to the other end of hose 222, when the gas that is surveyed needs to be transmitted, at first, connect the rubber mouth 221 of air guide 22 with bayonet 215, the reliability of junction is guaranteed to elasticity and leakproofness of rubber mouth 221, and prevent the gas leakage, the flexibility of hose 222 makes it can adapt to the connection of different positions and angles, and can bear certain pressure, when the gas reaches the other end of hose 222 through the tail gas interface 223, namely rubber mouth 221, rubber mouth 221 is with gas guide to the pipeline of connecting piece 21, accomplish the transmission task, through the cooperation of rubber mouth 221, hose 222 and tail gas interface 223, the air guide 22 has realized reliable gas transmission function, the rubber mouth 221 provides the tie point, the hose 222 bears the transmission task, and tail gas interface 223 guide the transmission material to appointed position, ensure smooth and effective fluid transmission.

Further, a groove one 31 is formed in one side of the case cover 3, a clamping piece 32 is installed on one side of the groove one 31, a limiting hole 33 is formed in the upper surface of the case cover 3, a groove one 31 is formed in one side of the case cover 3, which is provided with a rotating shaft 34, the clamping piece 32 is installed on the outer side of the groove one 31 and used for fixing the case cover 3 on the case body 4, the limiting hole 33 is used for limiting the movement range of the valve port tube 211 and can be matched with the limiting ring 212 so as to ensure that the collecting bag body 1 connected with the valve port tube 211 can only move to a specific position or angle, the rotating shaft 34 is a rotating fulcrum of the case cover 3, the case cover 3 can rotate around the axis of the case cover 3, and stable rotating support is provided for the case cover 3.

Further, a second groove 41 is formed in one side of the box body 4, a buckle 42 is fixedly mounted on the outer side of the second groove 41, an air suction hole 43 is formed in one side of the inner wall of the box body 4, the depth of the first groove 31 is identical to that of the second groove 41, and the clamping piece 32 can be matched with the buckle 42, so that the box body 4 and the box cover 3 are kept in a closed state, and a closed space is manufactured.

Further, the air extraction mechanism 5 comprises a rubber ring 51, an air extraction pipe 52 and an air extraction machine 53, the rubber ring 51 is arranged at the inner side of the air extraction hole 43, the air extraction pipe 52 is fixedly arranged at the inner side of the rubber ring 51, the air extraction machine 53 is arranged at the other end of the air extraction pipe 52, a knob 531 is arranged at one side of the air extraction machine 53, a display screen 532 is arranged at the right side of the knob 531, a heat dissipation opening 533 is arranged below the display screen 532, a switch 534 is arranged below the knob 531, when the switch 534 is pressed down in use, the air extraction machine 53 is started, the rubber ring 51 is arranged at the inner side of the air extraction hole 43, the rubber ring 51 is used for sealing the air extraction hole 43 to prevent gas leakage, the rubber ring 51 is tightly matched with the air extraction hole 43, so that gas can only enter the air extraction mechanism 5 through the air extraction pipe 52, the air extraction pipe 52 is a gas transmission channel to guide the gas entering from the air extraction hole 43 to the air extraction machine 53, the fixed mounting of rubber ring 51 ensures that exhaust tube 52 and the connection of gas extraction hole 43 are inseparable, prevent that gas leakage, the gas extraction machine 53 is followed the gas extraction hole 43 through exhaust tube 52 and is inhaled gas to carry out the operation of bleeding, knob 531 is installed to one side of gas extraction machine 53, knob 531 is used for controlling the operation of gas extraction machine 53, through rotatory knob 531, can adjust the air extraction speed or other parameters of gas extraction machine 53, in order to satisfy different air extraction demands, display 532 is used for showing the operating condition of gas extraction machine 53, air extraction speed and temperature, it provides real-time supervision and control to pumping mechanism 5, the thermovent 533 is installed to the below of display 532, thermovent 533 is used for giving off the heat that gas extraction machine 53 produced, ensure that gas extraction machine 53 is not overheated in the course of the work.

Working principle: firstly, a collecting bag for tail gas detection is moved to a working position, firstly, a valve port tube 211 passes through a limit hole 33, a collecting bag body 1 and the valve port tube 211 are installed, secondly, a box cover 3 is covered, a clamping piece 32 and a clamping buckle 42 are buckled, the box cover 3 and a box body 4 form a closed space, thirdly, the valve port tube 211, a limit ring 212, a valve 213, a connecting pipe 214 and a clamping opening 215 and an air guide piece 22 are sequentially installed, a tail gas interface 223 is connected with the tail gas tube, when the on-off of fluid or air is required to be controlled, the on-off of air flow can be controlled by rotating the valve 213 installed at the inner side of the valve port tube 211 and opening or closing the valve 213, and when the valve 213 is opened, the fluid or air can enter or leave the connecting piece 21 through the connecting pipe 214, otherwise, when the valve 213 is closed, the fluid or the air cannot flow through the connecting piece 21, the limit ring 212 has the function of ensuring that the movement range of the valve port tube 211 is limited and does not exceed the set position, so that the valve 213 can be prevented from exceeding the preset range and the indirectly connected collecting bag body 1 is kept to work at the correct position, the connecting tube 214 can be safely and reliably connected to other equipment or systems through the bayonet 215, the condition that leakage or out-of-control is avoided in the process of conveying fluid or gas is ensured, in sum, the valve port tube 211, the limit ring 212, the valve 213, the connecting tube 214 and the bayonet 215 in the connecting piece 21 mutually cooperate to realize the function of controlling the on-off of the fluid or the gas and ensure the firmness and the safety of connection, the fourth step is that the switch 534 is pressed down when in use, the air extractor 53 is started, the rubber ring 51 is arranged at the inner side of the air extractor 43, the rubber ring 51 has the function of sealing the air extractor 43 to prevent the gas leakage, the rubber ring 51 is tightly matched with the air extractor 43, ensuring that gas can only enter the suction mechanism 5 through the suction pipe 52, the suction pipe 52 is a gas transmission channel, guiding the gas entering from the suction hole 43 to the suction machine 53, the fixed installation of the rubber ring 51 ensures that the suction pipe 52 is tightly connected with the suction hole 43 to prevent gas leakage, the suction machine 53 sucks gas from the suction hole 43 through the suction pipe 52 and performs suction operation, a knob 531 is arranged on one side of the suction machine 53, the knob 531 is used for controlling the operation of the suction machine 53, the suction speed or other parameters of the suction machine 53 can be adjusted by rotating the knob 531 to meet different suction requirements, a display 532 is used for displaying the working state, the suction speed and the temperature of the suction machine 53, the real-time monitoring and control of the suction mechanism 5 are provided, a heat dissipation opening 533 is arranged below the display 532, the heat dissipation opening 533 is used for dissipating heat generated by the suction machine 53, the suction machine 53 is ensured not to be overheated in the working process, and after the working is completed, the collection bag body 1 collects enough gas to be tested at the moment, the blocking position is rotated to cut off the air flow, the suction machine 53 is turned off, and a switch 534 is pressed down, thus the exhaust bag is used for detecting and the collection process is completed.

Claims

1. The utility model provides a tail gas detects uses collecting bag, includes collecting bag body (1) and air guide mechanism (2), its characterized in that: the collecting bag comprises a collecting bag body (1), wherein a screw pipe (11) is arranged at the upper end of the collecting bag body (1), an air guide mechanism (2) is arranged at the upper end of the screw pipe (11), a box cover (3) is arranged at one end of the air guide mechanism (2), a box body (4) is arranged at the lower end of the box cover (3), and an air exhaust mechanism (5) is arranged at one side of the box body (4);

the air guide mechanism (2) comprises a connecting piece (21) and an air guide piece (22), wherein the connecting piece (21) is installed at the upper end of the screw pipe (11), and the air guide piece (22) is installed at the other end of the connecting piece (21).

2. The collecting bag for tail gas detection according to claim 1, wherein the connecting piece (21) comprises a valve port pipe (211), a limit ring (212), a valve (213), a connecting pipe (214) and a bayonet (215), the valve port pipe (211) is installed on the outer side threads of the screw pipe (11), the limit ring (212) is fixedly installed on the outer side of the valve port pipe (211), the valve (213) is installed on one side of the valve port pipe (211) in a rotating mode, the connecting pipe (214) is installed on the upper end threads of the valve port pipe (211), and the bayonet (215) is installed on the upper end of the connecting pipe (214).

3. The exhaust gas detection collection bag according to claim 2, wherein a vent hole (2131) is provided on the outside of the valve (213), and a handle (2132) is attached to one end of the valve (213).

4. The collecting bag for exhaust gas detection according to claim 2, wherein the air guide member (22) comprises a rubber port (221), a hose (222) and an exhaust gas port (223), the rubber port (221) is mounted on the outer side of the bayonet (215), the hose (222) is mounted on the inner side of the rubber port (221), and the exhaust gas port (223) is mounted on the other end of the hose (222).

5. The collecting bag for tail gas detection according to claim 1, wherein a groove I (31) is formed in one side of the box cover (3), a clamping piece (32) is arranged on one side of the groove I (31), a limit hole (33) is formed in the upper surface of the box cover (3), and a rotating shaft (34) is arranged on the other side of the box cover (3).

6. The collecting bag for tail gas detection according to claim 1, wherein a second groove (41) is formed in one side of the box body (4), a buckle (42) is fixedly arranged on the outer side of the second groove (41), and an air suction hole (43) is formed in one side of the inner wall of the box body (4).

7. The collecting bag for tail gas detection according to claim 6, wherein the air extraction mechanism (5) comprises a rubber ring (51), an air extraction pipe (52) and an air extractor (53), the rubber ring (51) is installed on the inner side of the air extraction hole (43), the air extraction pipe (52) is fixedly installed on the inner side of the rubber ring (51), the air extractor (53) is installed on the other end of the air extraction pipe (52), a knob (531) is installed on one side of the air extractor (53), a display screen (532) is installed on the right side of the knob (531), a heat dissipation opening (533) is installed below the display screen (532), and a switch (534) is installed below the knob (531).