Automobile carbon emission detection device

Abstract

The utility model relates to the technical field of carbon emission detection, in particular to an automobile carbon emission detection device which comprises a detection pipe used for being inserted into an automobile exhaust pipeline, a supporting bag body and an inflation and deflation mechanism, the tail end of the detection pipe is provided with a handheld portion, the supporting bag body is connected to the end, away from the handheld portion, of the detection pipe, and the inflation and deflation mechanism is connected with the supporting bag body. When the supporting bag body is full, the circumferential outer wall of the supporting bag body is attached to the inner wall of the exhaust pipe to support the input end of the detection pipe, the charging and discharging mechanism is used for injecting or extracting a filling medium into the supporting bag body to enable the supporting bag body to be full or wizened, and the charging and discharging mechanism comprises a hollow pipe communicated with the supporting bag body and a drainage pipe communicated with the hollow pipe; after the supporting bag body is filled, the detection pipe can be supported in the middle of the exhaust pipe, so that the detection pipe cannot deviate or shake due to factors such as gravity, airflow and the like, and meanwhile, the detection pipe can continuously and stably collect representative tail gas samples.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon emission detection technical field especially is related to a car carbon emission detection device. BACKGROUND

[0002] The carbon compound and other pollutants in the automobile exhaust are the important source of atmospheric pollution, through detecting carbon emission, can directly understand the pollution degree of automobile exhaust to the environment, provide data support for making and implementing environmental protection policy, control atmospheric pollution, help to improve air quality, protect ecological balance, when detecting, generally, a flexible detection probe is inserted into the automobile exhaust pipe to collect automobile exhaust sample, and the exhaust is transported to the analysis unit of detection equipment, so as to accurately measure the concentration of various pollutants and carbon emission related gas in the exhaust.

[0003] But the exhaust pipe shape, bending angle and pipe diameter of different vehicle types are quite different, the exhaust pipe of some vehicles has multiple bends or special design, if using hard probe, it is difficult to adapt to these complex shapes, may encounter obstacles in the insertion process, cannot reach the appropriate sampling position smoothly, and even may damage the exhaust pipe or the probe itself, therefore, at present, the probe generally adopts the overall relatively slender and easy to bend, such as metal bellows, and just because the detection probe is soft and easy to complete after being inserted into the exhaust pipe, it cannot provide enough rigidity to maintain in the hollow position of the exhaust pipe, and the exhaust distribution in the automobile exhaust pipe is not uniform, the exhaust flow speed near the inner wall of the exhaust pipe is relatively slow, and there may be local vortex and gas stratification phenomenon, if the probe end directly drags on the inner wall of the exhaust pipe, the collected exhaust sample may not represent the true situation of the exhaust in the entire exhaust pipe, and deviation may occur in the detection result. UTILIZING NEW FEATURES

[0004] The utility model provides a car carbon emission detection device to solve the prior art problems.

[0005] The technical problem solved by the utility model is realized by the following technical scheme:

[0006] A car carbon emission detection device, including the detection pipe for inserting into the automobile exhaust pipe, and the tail end of detection pipe is equipped with handheld part, still including support capsule and charge and discharge mechanism, support capsule is connected to the one end of detection pipe far from handheld part, when support capsule is full, its circumferential outer wall and the inner wall of exhaust pipe are pasted and support the input end of detection pipe, charge and discharge mechanism is used to inject or extract the fullness medium in support capsule to make it full or shriveled, charge and discharge mechanism includes the hollow tube of being linked with support capsule and the pump body of being linked with the hollow tube of extraction and discharge pipe, be equipped with on extraction and discharge pipe and be used for the pump body of charge and discharge fullness medium.

[0007] Preferably, the filling medium is a gas.

[0008] Preferably, the filling medium is a liquid.

[0009] Preferably, the support capsule is provided with a plurality of through holes, and when the support capsule is filled, the exhaust gas in the exhaust pipe can be discharged through the through holes.

[0010] Preferably, the outer surface of the support capsule and the hollow pipe is wrapped with a heat insulation sleeve for heat insulation.

[0011] Preferably, the outer surface of the heat insulation sleeve of the support capsule is provided with a wear-resistant layer.

[0012] The utility model has the beneficial effect that: through the support capsule filled can support the detection tube in the middle position of exhaust pipe, make detection tube not because gravity, air current and so on factor and deviate or sway, can make detection tube continuously, stably gather representative tail gas sample, avoid detection tube droop on the inner wall of automobile exhaust pipe cause gathered tail gas sample is polluted by these impurities, influence detection result, improve the accuracy and reliability of detection data. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creativity labor intensity, still can obtain other drawings according to these drawings.

[0014] Figure 1 The utility model provides the isometric structure schematic diagram for the utility model;

[0015] Figure 2 The utility model provides the partial section structure schematic diagram for the utility model;

[0016] Figure 3 The utility model provides the structure schematic diagram when the support capsule and the wear-resistant layer are separated in the utility model;

[0017] Figure 4 The utility model provides the section structure schematic diagram of the support capsule and the heat insulation sleeve in the utility model.

[0018] In the drawing, 1, detection tube;11, handheld part;2, support capsule;21, through hole;3, filling medium;4, hollow pipe;41, exhaust pipe;42, pump body;5, heat insulation sleeve;6, wear-resistant layer. DETAILED DESCRIPTION

[0019] In order to make the technical means, creation characteristics, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0020] Referring to Figures 1-4 As shown in the figure, an automobile carbon emission detection device, comprising a detection tube 1 for inserting into the automobile exhaust pipe, and the tail end of the detection tube 1 is provided with a handheld part 11, in use, the detection tube 1 is inserted into the automobile exhaust pipe to a certain depth through the handheld part 11 to sample the exhaust gas, since the current detection tube 1 is usually constructed similarly to a metal corrugated hose, after being inserted into the automobile exhaust pipe, one end of the detection tube 1 located inside the exhaust pipe may droop on the inner wall of the exhaust pipe, and since the flow speed of the exhaust gas near the inner wall of the exhaust pipe is relatively slow, and there may be carbon deposition and the like on the inner wall of the exhaust pipe, leading to unevenness of the collected exhaust gas sample, affecting the detection result, therefore, in the present scheme, a support capsule 2 is arranged at the end of the detection tube 1 away from the handheld part 11, when the support capsule 2 is filled, the circumferential outer wall thereof is attached to the inner wall of the exhaust pipe to support the input end of the detection tube 1, at this time, the detection end of the detection tube 1 is supported at the middle part or near the middle part of the exhaust pipe, and will not be directly in contact with the inner wall of the exhaust pipe, so that the detection tube 1 will not be deviated or shaken due to gravity, air flow and other factors, so that the detection tube 1 can continuously and stably collect representative exhaust gas samples, improving the accuracy and reliability of the detection data, and the support capsule 2 supporting the detection tube 1 can keep a certain distance from the inner wall of the exhaust pipe, avoiding interference from the impurities on the inner wall, ensuring that the detection data can truly reflect the composition and characteristics of the exhaust gas;

[0021] Further comprising a filling and discharging mechanism for injecting or discharging the filling medium 3 into or out of the support capsule 2 to make it filled or shrunk, the filling and discharging mechanism comprising a hollow tube 4 in communication with the support capsule 2 and a discharging tube 41 in communication with the hollow tube 4, the discharging tube 41 being provided with a pump body 42 for filling and discharging the filling medium 3, after the detection tube 1 is inserted into the exhaust pipe, the filling and discharging mechanism fills the support capsule 2, and when the detection tube 1 is inserted into or pulled out of the exhaust pipe, the support capsule 2 is shrunk, which will be described in detail below in combination with specific embodiments:

[0022] The first embodiment of the utility model provides that the filling medium 3 is a gas, such as air, at this time, the pump body 42 can adopt an air pump, the air pump is connected with the support capsule 2 through the hollow tube 4, after the air pump is turned on, the gas is transported into the support capsule 2 through the hollow tube 4, so that the support capsule 2 gradually expands, when the gas needs to be discharged, the working state of the air pump is changed by operating the control device, so that the air pump sucks the gas in the support capsule 2 from the air inlet, and the gas is discharged, the inflation speed is fast, the operation is relatively simple, the filling and shrinking of the support capsule 2 can be quickly realized, and the insertion and extraction of the detection tube 1 are facilitated.

[0023] The second embodiment provided by the utility model is that the filling medium 3 is liquid, and the liquid can adopt condensed water and the like, at this time the pump body 42 adopts a water pump capable of reversible operation, one end of the water pump is connected with the hollow pipe 4 through the exhaust pipe 41 to inject water into the support capsule 2, and the other end can be connected with a cooling water source to realize water injection and water filling of the support capsule 2 through the action of the water pump to realize filling and deflation of the support capsule 2, compared with the first embodiment, the exhaust gas is less affected by the ambient temperature, and the phenomenon of freezing of the filling medium 3 when the weather temperature is low does not occur, and when leakage occurs, the surrounding environment is not polluted, and through the liquid medium, because the specific heat capacity of the liquid is much larger than that of the gas, more heat can be absorbed, and the cooling effect is better, in the automobile exhaust detection, the high-temperature exhaust gas can cause the temperature of the detection pipe 1 and the surrounding environment to rise, and after the detection pipe 1 is pulled out, the personnel can be scalded, the capsule filled with cooling liquid can more effectively absorb and dissipate the heat, and after the cooling filling medium 3 is injected into the hollow pipe 4 and the support capsule 2, a protection can be formed on the outer periphery of the detection pipe 1, but when the cooling liquid leaks, the exhaust pipe or the surrounding environment can be polluted.

[0024] Referring to Figures 1-4 Further, a plurality of through holes 21 are formed in the support capsule 2, when the support capsule 2 is filled, the exhaust gas in the exhaust pipe can be discharged through the through holes 21, and the exhaust pipe will not be blocked, avoiding affecting the normal exhaust of the exhaust pipe.

[0025] Referring to Figure 2 Further, the outer surfaces of the support capsule 2 and the hollow pipe 4 are wrapped with a heat insulation sleeve 5 for heat insulation, the heat insulation sleeve 5 can adopt a multi-layer structure, and a heat insulation material such as glass fiber, rock wool or the like is filled in the middle, the heat insulation material has the characteristics of low thermal conductivity, can effectively reduce the heat transfer, and the support capsule 2 is wrapped by the heat insulation sleeve 5, plays a heat insulation protection role, makes the support capsule 2 work normally in the high-temperature environment of the exhaust pipe, reduces the risk of breaking of the support capsule 2, and improves the service life.

[0026] The outer part of the heat insulation sleeve 5 on the outer wall of the support capsule 2 is provided with a wear-resistant layer 6, the wear-resistant layer 6 can adopt a material with certain flexibility and elasticity such as silicone rubber and polytetrafluoroethylene, can well adapt to the filling and contraction of the support capsule 2, can quickly recover to the original state even after frequent deformation, ensures the normal function of the support capsule 2, reduces the friction when the support capsule 2 contacts the inner wall of the exhaust pipe through the wear-resistant layer 6, and improves the service life of the support capsule 2.

[0027] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for detecting carbon emission of a vehicle, comprising a detection tube (1) for being inserted into an exhaust pipe of the vehicle, and a hand-held portion (11) provided at a tail end of the detection tube (1), characterized in that, Also included are; A support capsule (2) is connected to the detection tube (1) away from the hand-held part (11), when the support capsule (2) is filled, its circumferential outer wall is in close contact with the inner wall of the exhaust pipe to support the input end of the detection tube (1); The filling and discharging mechanism is used for injecting or extracting the filling medium (3) into or out of the support capsule (2) to make it filled or deflated, the filling and discharging mechanism comprises a hollow tube (4) in communication with the support capsule (2) and a pumping pipe (41) in communication with the hollow tube (4), and the pumping pipe (41) is provided with a pump body (42) for filling and discharging the filling medium (3).

2. The device for detecting carbon emission of a vehicle according to claim 1, wherein, The filling medium (3) is a gas.

3. The device for detecting carbon emission of a vehicle according to claim 1, wherein The filling medium (3) is a liquid.

4. The device for detecting carbon emission of a vehicle according to claim 1, wherein, A plurality of through holes (21) are formed on the support capsule (2), when the support capsule (2) is filled, the exhaust gas in the exhaust pipe can be discharged through the through holes (21).

5. The device for detecting carbon emission of a vehicle according to claim 1, wherein, The outer surfaces of the support capsule (2) and the hollow tube (4) are wrapped with a heat insulation sleeve (5) for heat insulation.

6. The device for detecting carbon emission of a vehicle according to claim 5, wherein, A wear-resistant layer (6) is arranged outside the heat insulation sleeve (5) of the outer wall of the support capsule (2).

Images