Automobile exhaust collecting device
The circular airbag, designed with threaded connections and Velcro strips, combined with a T-shaped tee and a stainless steel collection tank, solves the problems of complex structure and poor adaptability of existing automobile exhaust gas collection devices, and achieves efficient, accurate exhaust gas collection and continuous alternating collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI YUANYI INDAL DEV
- Filing Date
- 2025-06-10
- Publication Date
- 2026-08-04
AI Technical Summary
Existing vehicle exhaust gas collection devices are complex in structure, expensive, and poorly adaptable, resulting in insufficient collection and easy exhaust gas leakage, making it difficult to complete vehicle exhaust gas collection quickly and accurately.
The circular airbag, featuring a threaded connection and Velcro strip design, combined with a T-shaped tee and a stainless steel collection tank, creates a well-sealed and easily disassembled exhaust gas collection device. An air pump and inflation hose provide air pressure to the airbag, ensuring both sealing and convenient operation.
It improves the efficiency and accuracy of exhaust gas collection, ensures no exhaust gas leakage, adapts to different vehicle models, enables rapid installation and continuous alternating collection, and reduces costs.
Smart Images

Figure CN224594266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of data collection device technology, and in particular to a vehicle exhaust gas collection device. Background Technology
[0002] Currently, most vehicle exhaust gas collection devices rely on sensors for data monitoring and collection control, resulting in complex structures and high costs. Furthermore, some devices are prone to problems such as exhaust gas sample contamination and insufficient collection during the collection process, leading to samples that fail to accurately reflect the actual composition of vehicle exhaust. In addition, existing collection devices have poor compatibility with exhaust pipes of different vehicle models, and the operation process is cumbersome, hindering the rapid and accurate collection of vehicle exhaust gases. Therefore, there is an urgent need to design a vehicle exhaust gas collection device that is simple in structure, low in cost, highly adaptable, and can guarantee the quality of collected samples. Patent document CN222731623U discloses a vehicle exhaust gas collection device, which includes an exhaust pipe. One end of the exhaust pipe has four sets of mounting holes, and each mounting hole has a mounting ring installed inside by mounting bolts. A collection tube is installed on the inner wall of the mounting ring, and a collection port is provided on the side surface of the collection tube near the top. A connecting tube is movably arranged inside the collection port, and fixing plates are installed on both sides of the connecting tube. Fixing bolts are movably screwed into the interior of both sets of fixing plates. A through-hole is opened on the other side of the connecting tube. By incorporating components such as a collection port, threaded hole, connecting pipe, fixing plate, fixing bolt, through port, collection cover, mounting plate, electric push rod, and sealing plate, this design effectively addresses the problem of simple structures in commonly available automotive exhaust gas collection devices. This often results in backflow of exhaust gas in the duct after collection, leading to low collection efficiency. However, it does not solve the issues of easy adaptation, disassembly, and installation of components, nor does it address improving the airtight collection capability of exhaust gas at a lower cost. Therefore, we need a new automotive exhaust gas collection device. Utility Model Content
[0003] This utility model discloses an automotive exhaust gas collection device, aiming to solve the technical problems of facilitating the adaptation, disassembly, and installation of various components and improving the airtight collection capability of exhaust gas at a lower cost. To achieve the above objectives, this utility model adopts the following technical solution:
[0004] A vehicle exhaust gas collection device includes an extraction assembly. The extraction assembly includes a handheld frame. A main exhaust pipe is fixedly connected to one side of the handheld frame. Three arc-shaped sleeves are fixedly installed on the outer wall of the end of the main exhaust pipe away from the handheld frame. A connecting collection pipe is movably connected to one end of the main exhaust pipe. Three arc-shaped collars are fixedly connected to the surface of the connecting collection pipe, and a sealing gasket is provided at the end of the connecting collection pipe near the arc-shaped collars. Threaded grooves are formed on both the inner and outer walls of the end of the connecting collection pipe away from the sealing gaskets. An adapter insertion pipe is threadedly connected to the inner wall of the connecting collection pipe. An annular groove is formed on the outer wall of the end of the adapter insertion pipe near the connecting collection pipe, and a circular airbag is movably connected to the surface of the annular groove. An adapter connecting sleeve is movably connected to the outer wall of the connecting collection pipe via threads.
[0005] In a preferred embodiment, the circular airbag surface is movably connected to a Velcro strip for freely controlling the size of the circular airbag restraint, and an inflation port is fixedly connected to one side of the circular airbag, with the inflation port movably extending through one side of the adapter connecting sleeve.
[0006] This design allows operators to flexibly adjust the tightness of the circular airbag using Velcro strips, enabling precise control over the connection between the airbag and the adapter insertion tube. This, in turn, better seals the vehicle's exhaust pipe and prevents exhaust gas leakage. Simultaneously, the design of the inflation port passing through the adapter connecting sleeve facilitates inflation of the circular airbag via the inflation hose, providing convenience for the sealing operation.
[0007] In a preferred embodiment, a collection assembly is fixedly connected to the upper and lower ends of the main gas supply pipe, the collection assembly including a T-shaped tee pipe.
[0008] By installing a collection component consisting of a T-shaped tee pipe at a specific location in the main gas transmission pipe, the function of diverting and collecting the exhaust gas in the main gas transmission pipe is realized, providing a basic framework for subsequent collection of exhaust gas to different collection tanks, and achieving the purpose of rationally allocating the exhaust gas collection path.
[0009] In a preferred embodiment, the T-shaped tee is fixedly connected to one end of the handheld frame by threads, and the T-shaped tee is movably connected to two collection tanks by threads, and the collection tanks are made of stainless steel.
[0010] The threaded connection ensures a stable and convenient connection between the T-shaped tee pipe, the main gas supply pipe, and the collection tank, facilitating installation and disassembly to adapt to different usage scenarios. Meanwhile, the collection tank is made of stainless steel to guarantee excellent corrosion resistance and durability, enabling long-term stable collection of vehicle exhaust gases.
[0011] In a preferred embodiment, each of the two collection tanks has two strip-shaped glass observation ports embedded in its surface. The air inlet ends of both collection tanks are fixedly connected to two threaded connecting pipes, and each threaded connecting pipe has two control valves fixedly connected to its surface. By embedding the strip-shaped glass observation ports in the surface of the collection tanks, operators can directly observe the collection of exhaust gas inside the tanks, achieving real-time monitoring of the collection progress and status. The control valves installed on the threaded connecting pipes at the air inlet ends can precisely control the inflow and outflow of exhaust gas, achieving flexible control of the collection process and ensuring that the collection work is carried out as needed.
[0012] In a preferred embodiment, an inflation assembly is fixedly installed on the side of the main air supply pipe away from the arc sleeve. The inflation assembly includes a small air pump, the output end of which is connected to an inflation hose, and one end of the inflation hose is movably connected to the inflation port surface on one side of the circular airbag.
[0013] By setting up an inflation assembly, a small air pump and inflation hose are used to inflate the circular airbag, providing the required air pressure so that it can fit tightly against the inner wall of the car's exhaust pipe, effectively sealing the exhaust pipe and ensuring that the exhaust gas can smoothly enter the collection device.
[0014] In a preferred embodiment, a hand handle is fixedly connected to the top of the handheld frame, a controller is fixedly provided on the upper surface of the hand handle, and multiple control buttons are fixedly provided on the surface of the controller.
[0015] By setting a handheld handle on the top of the handheld frame and integrating a controller with multiple control buttons on the handle, operators can easily hold the device and control each component, realizing convenient operation of the entire exhaust gas collection device and improving the efficiency and accuracy of collection work.
[0016] As can be seen from the above, the automobile exhaust gas collection device provided by this utility model has the following technical effects.
[0017] Firstly, threaded connections are used between the main gas supply pipe and the T-tee, the T-tee and the collection tank, and the inner wall of the connecting collection pipe and the matching insertion pipe to ensure a secure and tight connection, facilitating disassembly and installation as needed. Simultaneously, the arc-shaped sleeve at one end of the main gas supply pipe and the arc-shaped collar at the other end of the connecting collection pipe are connected by mutual limiting snaps, enabling rapid and accurate positioning and significantly improving installation efficiency.
[0018] The inflation hose, connected to the output of a small air pump, is connected to the inflation port on one side of the circular airbag to inflate it. Using Velcro strips on the surface of the circular airbag, the operator can freely control the restraint size and fix it to the annular groove on the outer wall of the adapter insertion tube near the connecting collection tube, achieving precise restraint and positioning of the circular airbag.
[0019] In addition, by connecting the sealing gasket at the end of the collection pipe near the main gas pipe, and the threaded connection between the outer wall of the collection pipe and the adapter sleeve, the adapter sleeve fits tightly with the vehicle exhaust pipe, achieving a tight seal throughout the gas transmission process, effectively preventing exhaust gas leakage, and ensuring accurate collection.
[0020] In summary, the connecting assembly, consisting of arc-shaped sleeves, arc-shaped collars, and threaded connections, facilitates the easy disassembly and installation of each component, significantly improving work efficiency and enabling rapid assembly and adjustment of the collection device in different scenarios. Furthermore, the synergistic effect of components such as sealing gaskets, circular airbags, and adaptable connecting sleeves ensures the device's airtightness, providing a reliable guarantee for accurate vehicle exhaust gas collection. This allows the vehicle exhaust gas collection device to efficiently and stably complete its collection task.
[0021] Secondly, when collecting waste gas, the threaded connection between the T-shaped tee and the collection tank facilitates continuous exchange collection, and the collection status can be easily observed through the strip glass observation port of the collection tank. The control valve enables precise control of the collection process. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of the automobile exhaust gas collection device proposed in this utility model.
[0023] Figure 2 This is a three-dimensional structural diagram of the handheld frame and T-shaped three-way tube proposed in this utility model.
[0024] Figure 3 This is a three-dimensional structural diagram of the adapter connecting sleeve and circular airbag proposed in this utility model.
[0025] Figure 4 This is a three-dimensional structural diagram of the main gas supply pipe and the connecting collection pipe proposed in this utility model.
[0026] Figure 5 This is a three-dimensional structural diagram of the small air pump and air hose proposed in this utility model.
[0027] Figure 6 This is a schematic diagram of the structure of the main gas supply pipe, the arc sleeve, the connecting collection pipe, and the arc collar proposed in this utility model.
[0028] In the attached diagram: 1. Air extraction assembly; 101. Handheld frame; 102. Main air supply pipe; 103. Arc sleeve; 104. Connecting collection pipe; 105. Arc collar; 106. Sealing gasket; 107. Adaptor insertion pipe; 108. Annular groove; 109. Circular airbag; 110. Adaptor connecting sleeve; 111. Velcro strip; 112. Inflation port; 113. Threaded groove; 2. Collection assembly; 201. T-shaped tee pipe; 202. Collection tank; 203. Strip glass observation port; 204. Threaded connecting pipe; 205. Control valve; 3. Inflation assembly; 301. Small air pump; 302. Inflation hose; 303. Handheld handle; 4. Controller; 401. Control button. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] Reference Figures 1-6 A vehicle exhaust gas collection device includes an extraction assembly 1. The extraction assembly 1 includes a handheld frame 101. A main exhaust pipe 102 is fixedly connected to one side of the handheld frame 101. Three arc-shaped sleeves 103 are fixedly installed on the outer wall of the end of the main exhaust pipe 102 away from the handheld frame 101. A connecting collection pipe 104 is movably connected to one end of the main exhaust pipe 102. Three arc-shaped collars 105 are fixedly connected to the surface of the connecting collection pipe 104, and the connecting collection pipe 104 is close to the arc-shaped collars 105. A sealing gasket 106 is provided at one end of the 5. Threaded grooves 113 are provided on both the inner and outer walls of the end of the connecting collection tube 104 away from the sealing gasket 106. An adapter insertion tube 107 is threadedly connected to the inner wall of the connecting collection tube 104. An annular groove 108 is provided on the outer wall of the adapter insertion tube 107 near the end of the connecting collection tube 104, and a circular airbag 109 is movably connected to the surface of the annular groove 108. An adapter connecting sleeve 110 is threadedly movably connected to the outer wall of the connecting collection tube 104. A Velcro strip 111 for freely controlling the size of the circular airbag 109 is movably connected to the surface of the circular airbag 109. An inflation port 112 is fixedly connected to one side of the circular airbag 109, and the inflation port 112 movably extends through one side of the adapter connecting sleeve 110.
[0032] The upper and lower ends of the main gas supply pipe 102 are fixedly connected to a collection assembly 2, which includes a T-shaped tee pipe 201.
[0033] The T-shaped tee pipe 201 is fixedly connected to one end of the main gas supply pipe 102 near the handheld frame 101 by threads. The T-shaped tee pipe 201 is movably connected to two collection tanks 202 by threads, and the collection tanks 202 are made of stainless steel.
[0034] Two strip-shaped glass observation ports 203 are embedded in the surface of each of the two collection tanks 202. Two threaded connecting pipes 204 are fixedly connected to the air inlet end of each of the two collection tanks 202, and two control valves 205 are fixedly connected to the surface of each threaded connecting pipe 204.
[0035] An inflation assembly 3 is fixedly installed on the side of the main air supply pipe 102 away from the arc sleeve 103. The inflation assembly 3 includes a small air pump 301. The output end of the small air pump 301 is connected to an inflation hose 302. One end of the inflation hose 302 is movably connected to the surface of the inflation port 112 on one side of the circular airbag 109.
[0036] In this embodiment, the maintenance personnel hold the main gas supply pipe 102 and the connecting collection pipe 104, and accurately align the arc sleeve 103 at one end of the main gas supply pipe 102 with the arc collar 105 at one end of the connecting collection pipe 104 to achieve a quick connection. After the connection is completed, ensure that the sealing gasket 106 at the end of the connecting collection pipe 104 near the arc collar 105 fits tightly. Finally, according to the actual size and shape of the vehicle's exhaust pipe, select a suitable adapter insertion tube 107 from among many available. The maintenance personnel then securely fix the adapter insertion tube 107 to the end of the connecting collection pipe 104 away from the main gas supply pipe 102 using a threaded connection, ensuring a tight fit between the two.
[0037] Next, pick up the circular airbag 109 and use the Velcro strip 111 on its surface to fix the airbag to the annular groove 108 on the surface of the adapter insertion tube 107.
[0038] It is worth noting that the Velcro strip 111 can be adjusted according to actual needs.
[0039] The next step is to connect the collection assembly 2. The maintenance personnel skillfully use threaded connections to firmly secure the T-shaped tee pipe 201 to the end of the main gas supply pipe 102 near the handheld frame 101. Then, using the same threaded connection method, they install the two stainless steel collection tanks 202 sequentially at the two outlets at the end of the T-shaped tee pipe 201 furthest from the main gas supply pipe 102. The stainless steel collection tanks 202 are sturdy and durable, capable of withstanding the pressure and chemical corrosion of exhaust gases, providing a reliable storage space for exhaust gas collection.
[0040] After installation, the maintenance personnel start the small air pump 301. The air pump slowly inflates the circular airbag 109 through the air hose 302, causing the airbag to gradually expand. At the same time, the adapter connector 110 is accurately fitted onto the vehicle's exhaust pipe, effectively blocking the exhaust gas tank and ensuring that exhaust gas can only enter through the collection device's channel. At this point, the vehicle's exhaust gas flows along the main exhaust pipe 102, the connecting collection pipe 104, and the adapter insertion pipe 107, and then through the T-shaped tee pipe 201, flowing into the two collection tanks 202 respectively.
[0041] It is worth noting that during the collection process, maintenance personnel can clearly observe the color and state of the exhaust gas through the strip-shaped glass observation port 203 embedded on the surface of the collection tank 202, and keep track of the collection progress in real time.
[0042] After the collection work is completed, the maintenance personnel gently close the control valve 205 on the surface of the threaded connection pipe 204 at the air inlet end of the collection tank 202, easily remove the collection tank 202, and send the collected exhaust gas for professional testing and analysis.
[0043] In summary, due to the reasonable design and close coordination of the components of the device, in actual operation, if it is necessary to continuously collect exhaust gases from different vehicles or collect them from the same vehicle multiple times, it can achieve continuous and seamless collection, which greatly improves work efficiency and ensures that the vehicle exhaust gas collection work is completed efficiently and accurately.
[0044] Reference Figure 1 A handheld handle 303 is fixedly connected to the top of the handheld frame 101. A controller 4 is fixedly installed on the upper surface of the handheld handle 303. Multiple control buttons 401 are fixedly installed on the surface of the controller 4.
[0045] In this embodiment, during actual exhaust gas collection operations, operators can easily carry and control the vehicle exhaust gas collection device using the handheld handle 303 fixed to the top of the handheld frame 101. This carefully designed handle greatly facilitates the operator's control of the entire device. Whether moving the collection location or adjusting the device's operating status in real time, the controller 4 and multiple control buttons 401 on the handle surface can accurately and conveniently operate the various functions of the device, ensuring that the vehicle exhaust gas collection work is carried out efficiently and smoothly.
[0046] Working principle: Before using the vehicle exhaust gas collection device, installation work must be carried out first.
[0047] First, the main gas supply pipe 102 is connected to the connecting collection pipe 104. The operator uses the corresponding sleeve design between the arc sleeve 103 and the arc collar 105 to connect the main gas supply pipe 102 and the connecting collection pipe 104, while the sealing gasket 106 ensures the sealing of the connection to prevent exhaust gas leakage.
[0048] Next, the operator selects a suitable adapter insertion tube 107 according to actual needs and fixes it to the end of the connecting collection tube 104 away from the main gas supply tube 102 by means of threaded connection. Then, the operator uses Velcro strips 111 to fix the circular airbag 109 to the annular groove 108 on the surface of the adapter insertion tube 107 to restrain the circular airbag 109.
[0049] Next, connect the collection component 2 to the main air supply pipe 102. Specifically, fix the T-shaped tee pipe 201 to the end of the main air supply pipe 102 near the handheld frame 101 by threaded connection, and then connect two stainless steel collection cans 202 to the two outlets at the end of the T-shaped tee pipe 201 away from the main air supply pipe 102 by threaded connection.
[0050] After completing the above installation, exhaust gas collection can begin. At this time, the circular airbag 109 is inflated using a small air pump 301 and an inflation hose 302. Simultaneously, the exhaust pipe is blocked using an adapter sleeve 110 to ensure the exhaust gas can smoothly enter the collection device. When exhaust gas needs to be collected, it flows through the main air supply pipe 102, the connecting collection pipe 104, the adapter insertion pipe 107, and the T-shaped tee pipe 201 into two collection tanks 202. Operators can observe the exhaust gas through the strip-shaped glass observation port 203 embedded in the surface of the collection tank 202. After collection is complete, the control valve 205 on the surface of the threaded connecting pipe 204 at the air inlet end of the collection tank 202 is closed, and the collection tank 202 can be removed. Furthermore, by utilizing the coordinated operation of the various components of this device, continuous and seamless alternating collection of vehicle exhaust gas can be achieved. The entire process, through the proper connection and operation of each component, achieves effective collection of vehicle exhaust gas. The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A device for collecting exhaust gases from a vehicle, comprising an air suction assembly (1), characterized in that, The air extraction assembly (1) includes a handheld frame (101). A main air supply pipe (102) is fixedly connected to one side of the handheld frame (101). Three arc-shaped sleeves (103) are fixedly installed on the outer wall of the end of the main air supply pipe (102) away from the handheld frame (101). A connecting collection pipe (104) is movably connected to one end of the main air supply pipe (102). Three arc-shaped collars (105) are fixedly connected to the surface of the connecting collection pipe (104), and a seal is provided at the end of the connecting collection pipe (104) near the arc-shaped collars (105). The gasket (106) has threaded grooves (113) on both the inner and outer walls of the connecting collection tube (104) away from the sealing gasket (106). The inner wall of the connecting collection tube (104) is connected to the adapter insertion tube (107) by threads. The outer wall of the adapter insertion tube (107) near the connecting collection tube (104) has an annular groove (108) and a circular airbag (109) is movably connected to the surface of the annular groove (108). The outer wall of the connecting collection tube (104) is movably connected to the adapter connecting sleeve (110) by threads.
2. The automobile exhaust collection device according to claim 1, characterized in that, The circular airbag (109) has a Velcro strip (111) movably connected to its surface for freely controlling the size of the circular airbag (109) restraint. An inflation port (112) is fixedly connected to one side of the circular airbag (109), and the inflation port (112) movably passes through one side of the adapter connecting sleeve (110).
3. The automobile exhaust collection device of claim 1, wherein, The upper and lower ends of the main gas pipeline (102) are fixedly connected to a collection assembly (2), which includes a T-shaped tee pipe (201).
4. The automobile exhaust collection device of claim 3, wherein, The T-shaped tee tube (201) is fixedly connected to one end of the handheld frame (101) by threads. The T-shaped tee tube is movably connected to two collection tanks (202) by threads, and the collection tanks (202) are made of stainless steel.
5. The automobile exhaust collection device of claim 4, wherein, Two strip-shaped glass observation ports (203) are embedded in the surface of each of the two collection tanks (202). Two threaded connecting pipes (204) are fixedly connected to the air inlet end of each of the two collection tanks (202), and two control valves (205) are fixedly connected to the surface of each threaded connecting pipe (204).
6. The automobile exhaust collection device of claim 1, wherein, An inflation assembly (3) is fixedly installed on the side of the main air supply pipe (102) away from the arc sleeve (103). The inflation assembly (3) includes a small air pump (301). The output end of the small air pump (301) is connected to an inflation hose (302). One end of the inflation hose (302) is movably connected to the surface of the inflation port (112) on one side of the circular airbag (109).
7. The automobile exhaust collection device of claim 1, wherein, The top of the handheld frame (101) is fixedly connected to a hand handle (303), and a controller (4) is fixedly installed on the upper surface of the hand handle (303). Multiple control buttons (401) are fixedly installed on the surface of the controller (4).