CN217278193U

CN217278193U - Exhaust gas analysis device with protection function for vehicle detection

Info

Publication number: CN217278193U
Application number: CN202220098262.6U
Authority: CN
Inventors: 周磊; 沈海林
Original assignee: Hefei Shenghong Motor Vehicle Testing Co ltd
Current assignee: Hefei Shenghong Motor Vehicle Testing Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-08-23
Anticipated expiration: 2032-01-14

Abstract

The utility model relates to a vehicle testing exhaust gas analysis device with protection function, which comprises a filter box, a filter plate and a corrugated pipe, wherein the inner side of the corrugated pipe is provided with an exhaust gas detection probe, the free end of the corrugated pipe is rotationally connected with a first plug bush, the inner wall of the first plug bush is provided with an inflatable first rubber ring for sealing the first plug bush and an exhaust pipe, the free end of the corrugated pipe is in threaded connection with a second plug bush, the inner wall of the second plug bush is provided with an inflatable second rubber ring for sealing the second plug bush and the exhaust pipe, the scheme is that the first plug bush is arranged at the end part of the corrugated pipe, the inner side of the plug bush utilizes the inflatable first rubber ring to realize sealing between the exhaust pipe and the expandable first rubber ring, thereby reducing the leakage of the exhaust gas, the second plug bush is in threaded connection with a connecting pipe to realize the butt joint of the exhaust pipes with different shapes, thereby ensuring that the exhaust gas can be well butted by the detection probe arranged in the corrugated pipe, the accuracy of measurement is guaranteed.

Description

Exhaust gas analysis device with protection function for vehicle detection

Technical Field

The application relates to the technical field of automobile detection, in particular to an exhaust gas analysis device with a protection function for vehicle detection.

Background

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, nitrogen oxides, lead, sulfur oxides and the like.

The tail gas that present car need detect the car when examining more, need dock between pipeline and the automobile exhaust pipe when detecting, and the leakproofness is not good between pipeline and the automobile exhaust pipe, can lead to tail gas to have a certain degree of leakage, and long-term contact can lead to the influence of certain degree of physical and mental health to detection personnel on every side, influences the result that tail gas detected to a certain extent simultaneously. Accordingly, those skilled in the art have provided an exhaust gas analyzing apparatus for vehicle inspection with a guard function to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems proposed in the background art described above, the present application provides an exhaust gas analyzer for vehicle inspection having a safeguard function.

The application provides a vehicle detects uses exhaust gas analysis device with safeguard function adopts following technical scheme:

the utility model provides a vehicle testing uses exhaust gas analysis device with safeguard function, includes the rose box, the inboard of rose box is provided with a plurality of filter, one side fixedly connected with bellows of rose box, and the inboard of bellows is provided with the exhaust-gas detection probe, the free end of bellows rotates and is connected with first plug bush, and is provided with on the inner wall of first plug bush to be used for its and blast pipe sealed inflatable first rubber ring, the free end threaded connection of bellows has the second plug bush, and is provided with on the second plug bush inner wall to be used for its and blast pipe sealed inflatable second rubber ring.

Through adopting above-mentioned technical scheme, first plug bush and second plug bush realize and the blast pipe between the butt joint through first rubber ring and second rubber ring respectively, reduce the outer hourglass of tail gas, promote the detection precision of test probe in the bellows simultaneously.

Preferably, a connecting pipe is fixedly connected between the corrugated pipe and the first inserting sleeve, thread grooves are formed in two ends of the connecting pipe, and the second inserting sleeve is in threaded connection with one of the two thread grooves.

Through adopting above-mentioned technical scheme, the connecting pipe is used for the butt joint between first plug bush and the bellows, simultaneously, realizes the position control to the second plug bush.

Preferably, the outer walls of the first plug bush and the second plug bush are respectively and fixedly connected with a first connector and a second connector, the first connector penetrates through the first plug bush to extend to the inside of the first rubber ring, and the second connector penetrates through the second plug bush to extend to the inside of the second rubber ring.

Through adopting above-mentioned technical scheme, utilize first connector, second connector to realize to the inside operation of aerifing of first rubber ring or second rubber ring, make its inflation and then realize sealed effect.

Preferably, the terminal bolt fixedly connected with air pump of rose box, and the input of air pump and the inside intercommunication setting of rose box.

By adopting the technical scheme, the air pump is utilized to accelerate the flow velocity of the air flow in the filter box, so that the problem that the automobile exhaust output is not smooth due to the fact that the air pressure of the input end of the filter box is too large is avoided while the filtering effect is accelerated.

Preferably, the output end of the air pump is communicated with an air pipe, the end part of the air pipe is rotatably connected with a butt joint, and the butt joint is matched with the first connecting port and the second connecting port.

Through adopting above-mentioned technical scheme, the trachea is in with the partial air current conduction of air pump output to the rubber ring, realizes the convenient processing of aerifing of rubber ring to this hoisting device's practicality.

To sum up, the application comprises the following beneficial technical effects:

the end part of the corrugated pipe is provided with the first plug bush, the inner side of the plug bush is sealed between the expandable first rubber ring and the exhaust pipe, so that the leakage of tail gas is reduced, the second plug bush is connected to the connecting pipe in a threaded manner, the exhaust pipes in different shapes are butted, the tail gas can be well butted by the detection probe arranged in the corrugated pipe, and the measurement precision is ensured; carry tail gas to the filter box in through the bellows to filter through the filter in the filter box, guarantee the cleanliness factor of combustion gas, utilize the trachea to realize the butt joint of butt joint and air pump, make the first rubber ring of realization that the device can be convenient and the operation of aerifing of second rubber ring, hoisting device's practicality.

Drawings

Fig. 1 is an isometric view of a vehicle testing exhaust gas analysis device with a safeguard function according to an embodiment of the present application;

FIG. 2 is a rear isometric view of a vehicle testing exhaust gas analysis device with a guarding function according to an embodiment of the present application;

fig. 3 is a structural view of a connection mechanism of an exhaust gas analyzer for vehicle inspection having a guard function according to an embodiment of the present invention.

Description of reference numerals: 1. a filter box; 2. a filter plate; 3. a bellows; 4. a connecting pipe; 5. a thread groove; 6. a first plug bush; 7. a first rubber ring; 8. a first connection port; 9. a second plug bush; 10. A second connection port; 11. a second rubber ring; 12. an air pump; 13. an air tube; 14. and (6) butting joints.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses vehicle detects uses exhaust gas analysis device with safeguard function. Referring to fig. 1-3, an exhaust gas analyzer with protection function for vehicle detection comprises a filter box 1, a plurality of filter plates 2 are arranged on the inner side of the filter box 1, a corrugated pipe 3 is fixedly connected to one side of the filter box 1, an exhaust gas detection probe is arranged on the inner side of the corrugated pipe 3, a first plug bush 6 is rotatably connected to the free end of the corrugated pipe 3, an inflatable first rubber ring 7 for sealing the first plug bush 6 with an exhaust pipe is arranged on the inner wall of the first plug bush 6, a second plug bush 9 is in threaded connection with the free end of the corrugated pipe 3, an inflatable second rubber ring 11 for sealing the second plug bush 9 with the exhaust pipe is arranged on the inner wall of the second plug bush 9, the first plug bush 6 and the second plug bush 9 are preferably different in shape, the first plug bush 6 is of a circular structure, the second plug bush 9 is of an elliptical structure, the first rubber ring 7 and the second rubber ring 11 are both made of high temperature resistant rubber material, the inner sides of the first rubber ring 7 and the second rubber ring 11 can be inflated to expand the volume thereof and ensure the sealing property, the connecting pipe 4 is fixedly connected between the corrugated pipe 3 and the first inserting sleeve 6, both ends of the connecting pipe 4 are respectively provided with a thread groove 5, the second inserting sleeve 9 is in threaded connection with one of the two thread grooves 5, the outer walls of the first inserting sleeve 6 and the second inserting sleeve 9 are respectively and fixedly connected with a first connecting port 8 and a second connecting port 10, the first connecting port 8 penetrates through the first inserting sleeve 6 and extends into the first rubber ring 7, the second connecting port 10 penetrates through the second inserting sleeve 9 and extends into the second rubber ring 11, the preferable inner parts of the first connecting port 8 and the second connecting port 10 are respectively provided with a one-way valve, the one-way valves are respectively arranged towards the first inserting sleeve 6 or the second inserting sleeve 9, the tail end of the filter box 1 is fixedly connected with an air pump 12 by a bolt, and the input of air pump 12 and the inside intercommunication setting of rose box 1, the output intercommunication of air pump 12 has trachea 13, and the tip of trachea 13 rotates and is connected with butt joint 14, butt joint 14 cooperates first connector 8 and the setting of second connector 10, set up screw thread on the preferred inner wall of butt joint 14, all set up screw thread on first connector 8 and the 10 outer walls of second connector, cooperate through between both screws, realize the butt joint, be provided with the valve on the trachea 13, be used for controlling the air input.

The implementation principle of the vehicle detection exhaust gas analysis device with the protection function is as follows: when the exhaust pipe is circular, the first plug bush 6 is plugged onto the exhaust pipe, the first connecting port 8 of the first plug bush 6 is in threaded connection with the butt joint 14 on the air pipe 13, the air pump 12 is started to act, the air pump 12 conveys partial air flow into the first rubber ring 7 through the air pipe 13, the first rubber ring 7 expands at the moment, so that the tightness of the fit between the first plug bush and the exhaust pipe is improved, the possibility of tail gas leakage is reduced, after the inflation operation of the first rubber ring 7 is completed, the butt joint 14 is taken down from the first connecting port 8, the stability of the air pressure in the first rubber ring 7 is kept under the action of a one-way valve on the inner side of the first connecting port 8, so that the first plug bush 6 and the exhaust pipe are well butted, and when the oval exhaust pipe needs to be butted, pass second plug bush 9 to 5 positions of thread groove, and carry out the screw thread butt joint to second plug bush 9, keep its position stable, settle second plug bush 9 on the blast pipe, and with butt joint between second connector 10 and the butt joint 14 on it, realize the inflation processing to second rubber ring 11, with this sealed effect of butt joint between second plug bush 9 and the bank period pipe of guaranteeing, guarantee that tail gas can get into rose box 1 at rear, tail gas is when passing through bellows 3, the inside test probe of being settled at bellows 3 carries out the tail gas detection, in order to realize the detection operation to waste gas, under the effect of filter 2 in rose box 1, effectively reduce the harmful gas composition in the exhaust gas, promote staff's personal safety.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an exhaust gas analysis device for vehicle inspection with safeguard function, includes rose box (1), the inboard of rose box (1) is provided with a plurality of filter (2), its characterized in that: one side fixedly connected with bellows (3) of rose box (1), and the inboard of bellows (3) is provided with the exhaust gas detection probe, the free end of bellows (3) rotates and is connected with first plug bush (6), and is provided with on the inner wall of first plug bush (6) and is used for its inflatable first rubber ring (7) sealed with the blast pipe, the free end threaded connection of bellows (3) has second plug bush (9), and is provided with on second plug bush (9) inner wall and is used for its inflatable second rubber ring (11) sealed with the blast pipe.

2. The exhaust gas analyzer with a guard function for vehicle inspection according to claim 1, characterized in that: fixedly connected with connecting pipe (4) between bellows (3) and first plug bush (6), and threaded groove (5) have all been seted up at connecting pipe (4) both ends, threaded connection in second plug bush (9) and two threaded groove (5).

3. The exhaust gas analyzer with a guard function for vehicle inspection according to claim 2, characterized in that: the outer wall of first plug bush (6) and second plug bush (9) is gone up respectively fixedly connected with first connector (8) and second connector (10), and inside first connector (8) run through first plug bush (6) and extend to first rubber ring (7), second connector (10) run through second plug bush (9) and extend to second rubber ring (11).

4. The exhaust gas analyzer with a guard function for vehicle inspection according to claim 1, characterized in that: the tail end of the filter box (1) is fixedly connected with an air pump (12) through a bolt, and the input end of the air pump (12) is communicated with the inside of the filter box (1).

5. The exhaust gas analyzer with a guard function for vehicle inspection according to claim 4, characterized in that: the output intercommunication of air pump (12) has trachea (13), and the tip of trachea (13) rotates and is connected with butt joint (14), butt joint (14) cooperation first connector (8) and second connector (10) set up.