Tail gas collecting device for automobile detection
By designing an exhaust gas collection device, using a sampling sleeve and an air pump to drive the exhaust gas into the filter box, and combining it with particle removal technology, the problem of exhaust gas leakage endangering the health of detection personnel is solved, and safe and efficient exhaust gas and particle collection is achieved.
Patent Information
- Application Number
- CN202422187029.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-09-06
AI Technical Summary
Existing automobile detection devices have the problem of loose sealing when collecting exhaust gas and dust particles, which leads to exhaust gas leakage and endangers the health of detection personnel.
An exhaust gas collection device was designed, including a sampling tube, a filter box and a collection bottle. It was fixed to the exhaust pipe through a sampling sleeve and a sleeve drawstring. An air pump was used to drive the exhaust gas through the filter box and into the collection bottle. Large particles were filtered out by a particle filter box, and a particle sweeper was used to remove particles from the inner wall of the exhaust pipe to ensure sealing.
It achieves the safe and efficient collection of exhaust gas and particle samples without direct contact with exhaust gas and particles, protecting the health of testing personnel.
Smart Images
Figure CN223400671U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile detection, in particular to an exhaust gas collection device for automobile detection. Background Art
[0002] When a fuel vehicle burns gasoline while running, it releases exhaust gas and dust particles. Some dust particles will directly adhere to the inside of the car's exhaust pipe. When inspectors inspect the exhaust of a fuel vehicle, they usually inspect the exhaust gas and dust particles emitted by the car to analyze the combustion conditions of the car and its impact on the environment. Therefore, inspectors not only need to collect the car exhaust into a special collection bottle, but also need to collect dust particles on the exhaust pipe. Even if the inspectors wear masks and take basic protective measures before conducting the sampling process, if the sealing work is not done well, the collected car exhaust may splash onto the inspectors' skin or enter the human body through places such as the ears, threatening health. Therefore, it is urgent to develop a car exhaust collection device that ensures the health of inspectors at work. Utility Model Content
[0003] The utility model discloses an exhaust gas collection device for automobile inspection. The sampling tube is tightly wrapped around the automobile exhaust pipe so that the exhaust gas discharged by the automobile can pass through the filter box and finally enter the collection bottle without being sprayed to the inspector, so that the inspector can quickly collect the automobile exhaust gas.
[0004] An exhaust gas collection device for automobile inspection, wherein a collection bottle is installed at the end of the exhaust gas collection device, and is characterized in that the exhaust gas collection device includes a sampling tube and a filter box, a sampling hose is installed between the sampling tube and the filter box, a sampling sleeve is provided on the outer side of the sampling tube, the front end of the sampling sleeve is provided with an extension portion and a hollow portion, the extension portion is provided with a sleeve boss, and the sleeve boss is provided with a sleeve drawstring, when the sampling sleeve is installed on the exhaust pipe, the sleeve drawstring crosses the hollow portion and is put on the sleeve boss, the particle filter box is provided with an outlet pipe, and an inflation pipe and a soft rubber plug are provided at the end of the outlet pipe, the upper end of the inflation pipe is connected to the outlet pipe through the soft rubber plug, and the lower end of the inflation pipe is connected to the collection bottle.
[0005] This utility model is an exhaust gas collection device for automobile inspection, which is installed on the exhaust pipe of a gasoline vehicle. The outer diameter of the sampling tube is shorter than the inner diameter of the exhaust pipe, allowing the sampling tube to be inserted into the exhaust pipe to directly collect the vehicle's exhaust gas. The device allows the vehicle's exhaust gas to first enter the sampling tube. Then, driven by an air pump, the exhaust gas enters a filter box to remove dust particles. Finally, the exhaust gas is filled into a collection bottle. When the collection bottle is full, the inspector removes the collection bottle from the filling tube, completing the collection process. The sleeve drawstring can be a soft and elastic rubber drawstring with holes at both ends that can be hooked onto the sleeve protrusion. A sampling sleeve is mounted on the outer side of one end of the sampling tube adjacent to the sampling hose. The sampling sleeve is cylindrical and slotted. When the sampling tube is inserted into the exhaust pipe, the sampling sleeve slides onto the outside of the exhaust pipe. The user then ties the ends of the sleeve drawstring to the sleeve protrusion, utilizing the friction of the sleeve drawstring to easily secure the sampling sleeve to the exhaust pipe. A sleeve cushion is provided on the inner side of the sampling sleeve to provide sealing performance for the sampling sleeve, making it less likely for exhaust gas discharged from the exhaust pipe to leak to the outside.
[0006] The filter box is equipped with an air pump, a particle filter box, and an exhaust pipe. The air pump is used to provide a suction force to allow the exhaust gas to enter the filter box, pass through the particle filter box, and finally be loaded into the collection bottle. The main purpose of the particle filter box is to filter out larger particles in the exhaust gas to prevent excessively large particles from adhering to the inflation pipe when the exhaust gas enters the collection bottle through the inflation pipe, causing blockage and resulting in the collection bottle not being able to collect the exhaust gas smoothly.
[0007] Preferably, a particle collection box and a box cover are provided on the outside of the sampling tube. The particle collection box has an opening facing forward, and the shape of the box cover matches the shape of the opening of the particle collection box. The box cover is provided with a particle sweeper, and the lower end of the particle sweeper protrudes from the lower end of the box cover. A collection box telescopic device is provided between the particle collection box and the box cover.
[0008] The particle collection box and the box cover are both located between the sampling tube and the sampling sleeve. When the sampling tube is placed in the exhaust pipe, the particle collection box and the box cover are both located between the sampling tube and the exhaust pipe. At this time, the particle sweeper on the box cover contacts the inner wall of the exhaust pipe, and then the box cover and the particle sweeper are moved toward the particle collection box under the driving force of the collection box telescopic device, so that the particle sweeper can sweep the particles mixed in the exhaust gas generated by the operation of the car on the inner wall of the exhaust pipe, and allow the particles to adhere to the particle sweeper. Finally, the particle sweeper is moved into the particle collection box, and the box cover is covered at the opening of the particle collection box to prevent the particles on the particle sweeper from falling out, waiting for the inspector to open the box cover to collect the particles on the particle sweeper and the particles that fall from the particle sweeper into the particle collection box.
[0009] Among them, one end of the collection box telescopic device is a telescopic motor equipped with a longer externally threaded rod, and the other end is a telescopic seat fixedly installed on the outer surface of the sampling tube and with an internally threaded hole matching the above-mentioned externally threaded rod. The telescopic motor is installed above the box cover, and the telescopic seat is installed above the particle collection box. The externally threaded rod is installed in the internally threaded hole and both ends of the externally threaded rod protrude from the internally threaded hole. When the telescopic motor works and drives the externally threaded rod to rotate, the box cover and the particle sweeper move toward the direction close to the particle collection box, and finally the box cover is covered on the particle collection box.
[0010] Compared with the existing technology, this exhaust gas collection device for automobile inspection can collect exhaust gas and particles discharged from the exhaust pipe while covering the exhaust pipe of a fuel vehicle, so that inspectors can collect exhaust gas and particle samples for inspection without direct contact with the exhaust gas and particles, thereby protecting the health of inspectors. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a cross-sectional view of the utility model of the exhaust gas collection device for automobile detection.
[0012] Figure 2 It is a three-dimensional diagram of the sampling sleeve 22 of the exhaust gas collection device for automobile detection according to the present invention.
[0013] Figure 3 yes Figure 1 Magnified view of point A in .
[0014] Figure numerals: 2-sampling tube, 21-sampling hose, 22-sampling sleeve, 23-extension portion, 25-sleeve boss, 26-sleeve pull strap, 31-particle filter box, 33-air outlet pipe, 34-inflating tube, 35-soft rubber plug, 4-collecting bottle, 51-particle collection box, 52-box cover, 53-particle sweeper. DETAILED DESCRIPTION
[0015] The present invention will be further described in detail below with reference to the accompanying drawings.
[0016] Reference Figure 1-3: The utility model is an exhaust gas collection device for automobile detection, and a collecting bottle 4 is installed at the end of the exhaust gas collection device, which is characterized in that the exhaust gas collection device includes a sampling tube 2 and a particle filter box 31, and a sampling hose 21 is installed between the sampling tube 2 and the particle filter box 31, and a sampling sleeve 22 is provided on the outer side of the sampling tube 2, and the front end of the sampling sleeve 22 is provided with an extension portion 23 and a hollow portion, and the extension portion 23 is provided with a sleeve boss 25, and the sleeve boss 25 is provided with a sleeve drawstring 26. When the sampling sleeve 22 is installed on the exhaust pipe, the sleeve drawstring 26 spans the hollow portion 24 and is put on the sleeve boss 25, and the particle filter box 31 is provided with an outlet pipe 33, and the end of the outlet pipe 33 is provided with an inflation pipe 34 and a soft rubber plug 35, the upper end of the inflation pipe 34 is connected with the outlet pipe 33 through the soft rubber plug 35, and the lower end of the inflation pipe 34 is connected with the collecting bottle 4.
[0017] The sampling tube 2 is provided with a particle collection box 51 and a box cover 52 on its exterior. The particle collection box 51 has an opening facing forward, and the shape of the box cover 52 matches the shape of the opening of the particle collection box 51. The box cover 52 is provided with a particle sweeper 53, the lower end of which protrudes from the lower end of the box cover 52. A collection box telescopic device is provided between the particle collection box 51 and the box cover 52. Particles contained in the exhaust gas of a gasoline vehicle after traveling for a certain distance typically adhere to the inner wall of the exhaust pipe.
[0018] When the present invention is in operation, the inspector first puts the sampling sleeve 22 onto the exhaust pipe of the gasoline vehicle, so that the sampling tube 2 is placed inside the exhaust pipe. At this time, the hollow portion on the sampling sleeve 22 will expose a section of the exhaust pipe. The inspector then crosses the sleeve drawstring 26 across the hollow portion and puts the drawstring hole on the sleeve drawstring 26 onto the sleeve boss 25. At this time, the inner side of the sleeve drawstring 26 is in close contact with the outer surface of the exhaust pipe exposed in the hollow portion, so that the sampling sleeve 22 can be fixedly installed on the exhaust pipe. The inspector then inserts the inflation tube 34 into the collection bottle 4, and the soft rubber plug 35 plays an airtight role in sealing the connection between the inflation tube 34 and the collection bottle 4, completing the installation of the present invention. Then the inspector starts the car to generate exhaust gas, which will be blown into the sampling tube 2 and then enter the particle filter box 3 through the sampling hose 21 to filter out the particles to prevent the particles from clogging the inflation tube 34. The filtered exhaust gas then enters the collection bottle 4 through the exhaust pipe 33 and the inflation tube 34 to complete the collection. At the same time, the particle sweeper 53 on the box cover 52 contacts the inner wall of the exhaust pipe, and then the box cover 52 and the particle sweeper 53 are driven by the telescopic device of the collection box to move toward the particle collection box 51, so that the particle sweeper 53 can sweep the particles mixed in the exhaust gas generated by the operation of the car on the inner wall of the exhaust pipe, and allow the particles to adhere to the particle sweeper 53. Finally, the particle sweeper 53 is moved to the particle collection box 51, and the box cover 52 covers the opening of the particle collection box 51 to prevent the particles on the particle sweeper 53 from falling out, waiting for the inspector to collect the particles on the particle sweeper 53 and the particles that fall from the particle sweeper 53 into the particle collection box 51.
[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.
Claims
1. An exhaust gas collection device for automobile inspection, wherein a collection bottle (4) is installed at the end of the exhaust gas collection device, characterized in that: The exhaust gas collection device comprises a sampling tube (2) and a particle filter box (31). A sampling hose (21) is installed between the sampling tube (2) and the particle filter box (31). A sampling sleeve (22) is provided on the outer side of the sampling tube (2). The front end of the sampling sleeve (22) is provided with an extension portion (23) and a hollow portion. The extension portion (23) is provided with a sleeve boss (25). The sleeve boss (25) is provided with a sleeve drawstring (26). When the sampling sleeve (22) is installed on the exhaust pipe, the sleeve drawstring (26) spans the hollow portion (24) and is sleeved onto the sleeve boss (25). The particle filter box (31) is provided with an air outlet pipe (33), and an air charging pipe (34) and a soft rubber plug (35) are provided at the end of the air outlet pipe (33). The upper end of the air charging pipe (34) passes through the soft rubber plug (35) and is connected to the air outlet pipe (33), and the lower end of the air charging pipe (34) is connected to the collecting bottle (4).
2. The exhaust gas collection device for automobile detection according to claim 1, characterized in that: A particle collection box (51) and a box cover (52) are provided on the outer side of the sampling tube (2); the particle collection box (51) has an opening facing forward; the shape of the box cover (52) matches the shape of the opening of the particle collection box (51); the box cover (52) is provided with a particle sweeper (53); the lower end of the particle sweeper (53) protrudes from the lower end of the box cover (52); and a collection box telescopic device is provided between the particle collection box (51) and the box cover (52).