Exhaust gas centralized collection and discharge system

Abstract

The utility model relates to a whole vehicle emission test technical field, especially a kind of exhaust gas centralized collection and discharge system, including test room, connector and mobile carrier, the side wall of test room is equipped with gas inlet, connector is communicated with the gas inlet by telescopic pipe and is set, the outside of test room is provided with the air extraction pipe and air extraction fan being communicated with gas inlet, mobile carrier includes material plate, trundle and rotating head, on the basis of existing exhaust gas centralized collection and discharge system, mobile carrier is driven to move adjustment by being set with the connector connected with automobile exhaust pipe, reduce the connection operation difficulty of connector, more convenient for the connection of automobile exhaust pipe.

Description

Technical Field

[0001] This utility model relates to the field of automobile emission testing technology, and in particular to a centralized exhaust gas collection and emission system. Background Technology

[0002] In vehicle emissions testing, exhaust gas collection is the core of the entire testing process. Its fundamental purpose is to accurately obtain data on the types, concentrations, and total amounts of pollutants emitted by the vehicle, thereby enabling scientific assessment of vehicle emissions levels, verification of regulatory compliance, and technological optimization.

[0003] For example, Chinese patent application CN202510851600.7 discloses a portable automotive emission testing system, belonging to the field of automotive exhaust gas testing technology. It solves the technical problems of existing emission testing systems, such as large size, inconvenience, low testing efficiency, and poor vehicle compatibility. The system includes a mounting frame, a wireless communication module, a cloud server, and a system controller and OBD adapter placed in the vehicle compartment. The mounting frame has several folding support wheels on its lower side, several adjusting and locking slides on its front side, trailer connectors on the adjusting and locking slides, an environmental monitoring mechanism on the mounting frame, several auxiliary connectors on the upper front side of the mounting frame, an exhaust gas detection module on the upper rear side of the mounting frame, an exhaust gas collection mechanism on the lower front side of the mounting frame, and an exhaust gas flow assessment mechanism on the lower rear side of the mounting frame. It features high integration and portability, high vehicle compatibility, and can stably and efficiently perform emission testing and assessment.

[0004] Furthermore, Chinese patent application number 201721355279.0 specifically discloses an exhaust system for a vehicle dynamometer test chamber. The dynamometer test chamber comprises two layers, with the vehicle to be tested located at the bottom of the first layer. The system includes: a first exhaust pipe connected to the exhaust pipe of the vehicle to be tested, with its portion extending through the first layer and located within the second layer; a centrifugal fan connected to the inlet of the first exhaust pipe; and a second exhaust pipe connected to the outlet of the centrifugal fan, with one end extending through the second layer and partially exposed within the dynamometer test chamber. The exhaust gas emitted by the vehicle to be tested is sequentially discharged through the first exhaust pipe, the centrifugal fan, and the second exhaust pipe. This exhaust system of the present invention can completely discharge the automotive exhaust gas generated during the vehicle dynamometer test, while simultaneously reducing noise and environmental pollution during the discharge process.

[0005] Although the above-mentioned technical solutions disclose specific methods for collecting vehicle exhaust emissions, the existing collection methods require manual handling of the connectors that connect to the vehicle's exhaust pipe, which is time-consuming, labor-intensive, and very inconvenient to operate. Utility Model Content

[0006] To address the above problems, this utility model provides a centralized exhaust gas collection and emission system. Based on the existing centralized exhaust gas collection and emission system, a mobile carrier is set up to move and adjust the connector that is connected to the vehicle exhaust pipe, reducing the difficulty of connecting the connector and making it easier to connect to the vehicle exhaust pipe.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A centralized exhaust gas collection and emission system, wherein the connector connected to the vehicle's exhaust pipe is moved and transferred within the test chamber by a mobile carrier. As an improvement, an air collection port is provided on the side wall of the test chamber, and the connector is connected to the air collection port through a telescopic tube.

[0008] As an improvement, the test chamber is equipped with an exhaust pipe and an exhaust fan that are connected to the air collection port.

[0009] As an improvement, the mobile carrier includes a material carrier plate, casters, and a rotating head; The material carrier plate is horizontally arranged, and the casters are located at the four corners of the material carrier plate; The rotating head is rotatably mounted on the material carrier plate, and the telescopic tube is connected to the connector through the rotating head.

[0010] As an improvement, the rotating head includes a cover and an extension tube; The cover is connected to the telescopic tube, and the extension tube extends outward from inside the cover and connects to the connector.

[0011] As an improvement, the rotating head is provided with a handle for manipulating the rotating head to rotate.

[0012] As an improvement, the grip extends through the hollow shaft of the rotating head to the bottom of the material carrier plate, and the end of the grip located below the material carrier plate is equipped with a magnetic suction element. The bottom plate of the test chamber is a magnetic metal plate.

[0013] As an improvement, the handle is provided with a groove arranged along the axial direction, and a limiting pin inserted into the groove passes through the hollow shaft.

[0014] As an improvement, the grip located inside the cover is provided with an upper limit plate and a lower limit plate. The upper limit plate and the lower limit plate are respectively located above and below the extension tube. When the lower limit plate abuts against the bottom of the cover, the magnetic suction component attracts the bottom plate of the test chamber.

[0015] As an improvement, the connector includes a pipe body and a clamp. The pipe body is a straight pipe with flared ends. The flared ends of the pipe body are respectively sleeved with the extension pipe and the vehicle exhaust pipe. The clamp is set at the flared ends of the pipe body to fix the pipe body, extension pipe and vehicle exhaust pipe together.

[0016] The beneficial effects of this utility model are as follows: (1) Based on the existing centralized collection and emission system for exhaust gas, this utility model uses a mobile carrier to move and adjust the connector connected to the car exhaust pipe, thereby avoiding manual handling, reducing the difficulty of connecting the connector, and making it easier to connect to the car exhaust pipe. (2) In this utility model, a handle is set on the mobile carrier, and the mobile carrier is moved by the handle, which is convenient for personnel to operate. In addition, the handle can drive the rotating head to rotate, which makes it easier to adjust the connection between the connector and the car exhaust pipe. (3) In this utility model, a magnetic suction component is provided at the bottom end of the handle. When the moving carrier is moved by manipulating the handle, the handle is raised to drive the magnetic suction component to detach from the test chamber floor. When the moving carrier is moved into place, the handle is released and the handle is lowered, and the magnetic suction component can be used to attach to the test chamber floor to fix the moving carrier. This avoids the vibration of the exhaust pipe from causing the moving carrier to shake and improves the stability of the connector for exhaust gas collection.

[0017] In summary, this utility model has the advantages of convenient operation and strong stability, and is especially suitable for the field of automotive exhaust gas testing technology. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the test chamber of this utility model; Figure 2 This is a schematic diagram of the external structure of the test chamber of this utility model; Figure 3 This is a three-dimensional structural diagram of the mobile carrier of this utility model; Figure 4 This is a three-dimensional structural diagram of the connector of this utility model; Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the grip installation state of this utility model; Figure 7 This is a three-dimensional schematic diagram of the rotating head of this utility model; Figure 8 This is a three-dimensional structural diagram of the grip of this utility model.

[0019] Numbering on the map: Connector 1, pipe body 11, clamp 12, Mobile carrier 2, material plate 21, casters 22, rotating head 23, cover 231, extension tube 232, hollow shaft 233, limit pin 234, handle 24, waist groove 240, upper limit plate 241, lower limit plate 242, magnetic suction component 25. Test chamber 3, air collection port 31, air extraction pipe 32, exhaust fan 33. 4. Telescopic tube. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] Example 1: like Figures 1-4 As shown, a centralized exhaust gas collection and emission system is described, in which the connector 1 connected to the vehicle's exhaust pipe is moved and transferred within the test chamber 3 by a mobile carrier 2. The test chamber 3 has an air collection port 31 on its side wall. The connector 1 is connected to the air collection port 31 via a telescopic pipe 4. The test chamber 3 is equipped with an exhaust pipe 32 and an exhaust fan 33 that are connected to the air collection port 31.

[0024] Furthermore, the connector 1 includes a pipe body 11 and a clamp 12. The pipe body 11 is a straight pipe with flared ends. The flared ends of the pipe body 11 are respectively connected to the extension pipe 232 and the vehicle exhaust pipe. The clamp 12 is located at the flared ends of the pipe body 11 and is fixedly connected to the pipe body 11, the extension pipe 232 and the vehicle exhaust pipe.

[0025] During vehicle emissions testing, after the vehicle is parked in the test chamber 3, the connector 1 is moved to the rear of the vehicle's exhaust pipe via the mobile carrier 2. After the connector 1 is fixedly connected to the exhaust pipe, the vehicle is started. The exhaust gas emitted by the vehicle enters the connector 1 and is then transmitted to the gas collection port 31 through the telescopic pipe 4. The exhaust fan 33, in conjunction with the exhaust pipe 32, collects the exhaust gas centrally, facilitating the testing equipment to examine the exhaust gas and obtain data on the types, concentrations, and total amounts of pollutants emitted by the vehicle. The telescopic pipe 4 can be extended or retracted to change its length.

[0026] Specifically, the structure of the connector 1 connecting to the vehicle exhaust pipe is as follows: after the pipe body 11 of the connector 1 is fitted with the exhaust pipe, the clamp 12 is fitted onto the part where the pipe body 11 and the exhaust pipe are fitted. The clamp 12 fixes the part where the pipe body 11 and the exhaust pipe are fitted. Similarly, the other end of the pipe body 11 is also fitted and connected using the same structure.

[0027] The mobile carrier 2 specifically includes a material carrier plate 21, casters 22, and a rotating head 23; The material carrier plate 21 is horizontally arranged, and the casters 22 are located at the four corners of the material carrier plate 21.

[0028] Specifically, the material carrier plate 21 is a horizontal plate, and the casters 22 provide rolling support for the material carrier plate 21. The casters 22 are omnidirectional wheels. The moving carrier 2 drives the connector 1 to move through the casters 22, thereby facilitating the change of the connection position between the connector 1 and the exhaust pipe.

[0029] Example 2: Referring to Example 1, the difference between Example 2 and Example 1 lies in the following: like Figures 5-7 As shown, the rotating head 23 is rotatably mounted on the material carrier plate 21, and the telescopic tube 4 is connected to the connecting head 1 through the rotating head 23.

[0030] The rotating head 23 includes a cover 231 and an extension tube 232; The cover 231 is connected to the telescopic tube 4, and the extension tube 232 extends outward from the cover 231 and connects to the connector 1.

[0031] A rotating head 23 is provided at the connection point between the connector 1 and the mobile carrier 2. The connector 1 is mounted on the rotating head 23, and the rotating head 23 drives the connector 1 to rotate on the mobile carrier 2, so that the connector 1 can be adjusted in real time according to the position of the car exhaust pipe.

[0032] Example 3: Referring to Example 2, the difference between Example 3 and Example 2 lies in the following: like Figure 8 As shown, the rotating head 23 is provided with a handle 24 for manipulating the rotating head 23 to rotate.

[0033] The handle 24 extends through the hollow shaft 233 on the rotating head 23 to the bottom of the material carrier plate 21. The end of the handle 24 located below the material carrier plate 21 is equipped with a magnetic suction element 25. The bottom plate of the test chamber 3 is a magnetic metal plate.

[0034] Furthermore, the handle 24 is provided with a waist groove 240 arranged along the axial direction, and the hollow shaft 233 is provided with a limiting pin 234 inserted into the waist groove 240.

[0035] The grip 24 located inside the cover 231 is provided with an upper limit plate 241 and a lower limit plate 242. The upper limit plate 241 and the lower limit plate 242 are respectively located above and below the extension tube 232. When the lower limit plate 242 abuts against the bottom of the cover 231, the magnetic suction member 25 adsorbs the bottom plate of the test chamber 3.

[0036] It should be noted that the handle 24 can directly move the mobile carrier 2, avoiding the need for the operator to bend over. The operator can move the mobile carrier 2 within the test room 3 while standing.

[0037] To further explain, the handle 24 can be raised and lowered by the rotating head 23. When the handle 24 is pulled up, the magnetic part 25 at the bottom of the handle 24 will detach from the adsorption of the test chamber 3 base plate, allowing the moving carrier 2 to move. When the moving carrier 2 moves to the corresponding position, the handle 24 is released, the handle 24 descends, and the magnetic part 25 can adsorb onto the test chamber 3 base plate again.

[0038] To further explain, the grip 24 is connected to the hollow shaft 233 by a limiting pin 234, which allows the grip 24 to drive the rotating head 23 to rotate.

[0039] In addition, the upper limit plate 241 and the lower limit plate 242 provided on the grip 24 cooperate with each other to limit the lifting stroke of the grip 24 and prevent the grip 24 from detaching from the rotating head 23.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centralized waste gas collection and emission system, characterized in that: The connector (1) connected to the vehicle exhaust pipe is moved and transferred within the test chamber (3) by the movement of the mobile carrier (2); The test chamber (3) has an air collection port (31) on its side wall, and the connector (1) is connected to the air collection port (31) through a telescopic pipe (4). The mobile carrier (2) includes a material carrier plate (21), casters (22) and a rotating head (23); The rotating head (23) is provided with a handle (24) for operating the rotating head (23) to rotate. The handle (24) extends through the hollow shaft (233) on the rotating head (23) to the bottom of the material carrier plate (21). The end of the handle (24) located below the material carrier plate (21) is provided with a magnetic suction element (25). The bottom plate of the test chamber (3) is a magnetic metal plate.

2. The waste gas centralized collection and emission system according to claim 1, characterized in that: The test chamber (3) is equipped with an exhaust pipe (32) and an exhaust fan (33) connected to the air collection port (31).

3. The waste gas centralized collection and emission system according to claim 1, characterized in that: The material carrier plate (21) is horizontally arranged, and the casters (22) are respectively located at the four corners of the material carrier plate (21); The rotating head (23) is rotatably mounted on the material carrier plate (21), and the telescopic tube (4) is connected to the connector (1) through the rotating head (23).

4. The waste gas centralized collection and emission system according to claim 1, characterized in that: The rotating head (23) includes a cover (231) and an extension tube (232); The cover (231) is connected to the telescopic tube (4), and the extension tube (232) extends outward from the inside of the cover (231) and connects to the connector (1).

5. The waste gas centralized collection and emission system according to claim 1, characterized in that: The handle (24) has an axially oriented groove (240), and the hollow shaft (233) has a limiting pin (234) inserted into the groove (240).

6. The waste gas centralized collection and emission system according to claim 4, characterized in that: The grip (24) is provided with an upper limit plate (241) and a lower limit plate (242) inside the cover (231). The upper limit plate (241) and the lower limit plate (242) are respectively located above and below the extension tube (232). When the lower limit plate (242) abuts against the bottom of the cover (231), the magnetic suction member (25) adsorbs the bottom plate of the test chamber (3).

7. The waste gas centralized collection and emission system according to claim 4, characterized in that: The connector (1) includes a pipe body (11) and a clamp (12). The pipe body (11) is a straight pipe with flared ends. The flared ends of the pipe body (11) are respectively connected to the extension pipe (232) and the vehicle exhaust pipe. The clamp (12) is located at the flared ends of the pipe body (11) and is fixedly connected to the pipe body (11), the extension pipe (232) and the vehicle exhaust pipe.

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