Tail gas purification device for diesel vehicle

Abstract

The utility model discloses a diesel vehicle tail gas purification device, and relates to the technical field of diesel vehicle tail gas treatment. The tail gas filter comprises a filter pipe, one end of the filter pipe is communicated with the exhaust end of a tail gas exhaust pipe, the tail gas exhaust pipe is connected with the filter pipe through a pipe hoop matched positioning bolt, and the other end of the filter pipe is provided with an exhaust hole for exhausting gas; the surface of the filter pipe is provided with a receding groove for installing the quick-release built-in piece, the quick-release built-in piece is fixed to the receding groove through a fixing bolt, the other end of the quick-release built-in piece is connected with a first positioning frame in the filter pipe in an inserted mode, and a filter cavity is formed in the quick-release built-in piece. When the tail gas pipe needs to be replaced, the positioning pin presses the reset spring to retract into the reset hole only by shifting the shifting piece, at the moment, the positioning pin does not abut against the lower end of the filtering piece any more, the filtering piece can be directly pulled out for replacement, and compared with an existing mode that the whole tail gas pipe needs to be detached for replacement, the tail gas pipe is more convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of diesel vehicle exhaust gas treatment technology, specifically, it relates to a diesel vehicle exhaust gas purification device. Background Technology

[0002] The exhaust gas produced by burning diesel mainly contains nitrogen oxides, sulfur oxides, carbon monoxide, carbon dioxide, aldehydes, and a large amount of black smoke from incomplete combustion. The black smoke contains unburned oil mist, free carbon particles produced by the thermal decomposition of some hydrocarbons, and some high-boiling-point heterocyclic and aromatic substances, as well as carcinogens. If these harmful gases are released into the air without treatment, they will cause pollution. Existing exhaust gas purification devices have poor purification effects and cannot fully treat the exhaust gas before emission. Although the emission volume is low, it still pollutes the environment.

[0003] Currently, a filter structure is added inside the exhaust pipe to perform secondary filtration of the exhaust gas after treatment. However, as the filter structure needs to be replaced periodically as the usage time increases, the entire exhaust pipe needs to be disassembled for replacement, which is cumbersome and inconvenient. Therefore, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a diesel vehicle exhaust purification device.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A diesel vehicle exhaust purification device includes a filter tube, one end of which is connected to the exhaust end of an exhaust pipe. The exhaust pipe and the filter tube are connected by a pipe clamp and a positioning bolt. The other end of the filter tube has an exhaust port for gas to be discharged.

[0007] The surface of the filter tube is provided with a clearance groove for quick-release built-in component installation. The quick-release built-in component is fixed to the clearance groove by a fixing bolt. The other end of the quick-release built-in component is inserted into the first positioning frame inside the filter tube. The quick-release built-in component is provided with a filter cavity. Embedding holes for the installation of the first filter screen are provided on both the left and right sides of the quick-release built-in component. Filter elements are provided at equal intervals inside the filter cavity. Multiple embedding grooves communicating with the inside of the filter cavity are provided at equal intervals on the lower end surface of the quick-release built-in component. Reset holes for the installation of positioning pins are connected on both sides of each embedding groove. A reset spring abuts between the positioning pin and the reset hole.

[0008] The filter element has a reserved cavity inside for placing the activated carbon filter plate. The front and rear sides of the reserved cavity are connected to the mounting groove. The air filter plate is fixed inside the mounting groove. The quick-release built-in component has a second positioning frame installed at equal intervals inside for positioning the upper end of the filter element.

[0009] Optionally, each of the reset holes has a groove at its lower end, and the groove is formed on the bottom surface of the filter tube. A lever is movably connected inside the groove, and the lever is fixedly installed on the lower side of one end of the positioning pin.

[0010] Optionally, a slot for installing an airflow sensor is provided on one side of the lower end of the filter tube. The detection end of the airflow sensor extends into the interior of the filter tube and is located on one side of the exhaust pipe. The airflow sensor is connected to the controller at the lower end of the filter tube via a wire.

[0011] Optionally, the controller has a motherboard inside, and the front end of the motherboard is connected to a battery module, a microcontroller, a remote control module and a speaker.

[0012] Optionally, a dustproof component is threaded onto one side of the exhaust port, and a limiting groove for installing a second filter screen is provided at equal intervals on the outer end of the dustproof component.

[0013] Optionally, the dustproof component is fitted with a positioning ring on its outside, and an anti-slip ring is fixedly bonded to the side end contact surface of the positioning ring and the filter tube.

[0014] Optionally, the contact ends of the pipe clamp with the exhaust pipe and the filter pipe are respectively provided with a first sealing element and a second sealing element.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0016] 1. The filter tube and the exhaust pipe of this utility model are fixed by a pipe clamp. Therefore, when the whole replacement is needed in the future, the pipe clamp can be removed directly. Compared with the existing device with the filter structure built into the exhaust pipe, the convenience is significantly improved. Secondly, when replacing the filter, it is only necessary to move the lever to make the positioning pin press the return spring back into the return hole. At this time, the positioning pin and the lower end of the filter no longer abut. Then the filter can be directly pulled out for replacement. Compared with the existing method of disassembling the entire exhaust pipe for replacement, it is more convenient.

[0017] 2. This utility model, by setting up a speaker and a remote controller, makes it convenient for drivers to know in a timely manner whether the filter needs to be replaced. Specifically, after the air volume sensor obtains the analog value, it is processed by the microcontroller. After the microcontroller processes the data, it compares the result with the data in the database. When the data is lower than the normal emission level, the data will be transmitted to the vehicle system or the user's mobile phone through the remote control module to remind them. At the same time, the speaker will also emit an alarm sound for double reminder.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the picture:

[0021] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the combined component structure of the controller and the air volume sensor in this utility model;

[0023] Figure 3 for Figure 1 A schematic diagram of the structure of part A in the diagram;

[0024] Figure 4 for Figure 1 A schematic diagram of the structure of part B in the diagram;

[0025] Figure 5 for Figure 1 A schematic diagram of the structure of part C in the diagram;

[0026] Figure 6 for Figure 1 A schematic diagram of the structure of part D in the diagram;

[0027] Figure 7 This is a schematic diagram illustrating the working process of the controller and air volume sensor in this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Filter pipe; 2. Exhaust pipe; 3. Pipe clamp; 4. Positioning bolt; 5. Quick-release internal component; 6. Fixing bolt; 7. First positioning frame; 8. First filter screen; 9. Filter element; 10. Positioning pin; 11. Return spring; 12. Air filter plate; 13. Activated carbon filter plate; 14. Second positioning frame; 15. Strip groove; 16. Paddle; 17. Air volume sensor; 18. Controller; 19. Battery module; 20. Microcontroller; 21. Remote control module; 22. Speaker; 23. Dustproof component; 24. Second filter screen; 25. Positioning ring; 26. Anti-slip ring; 27. First sealing element; 28. Second sealing element.

[0030] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] Please see Figures 1 to 7 This utility model provides a technical solution: a diesel vehicle exhaust purification device, including a filter pipe 1, one end of the filter pipe 1 is connected to the exhaust end of the exhaust pipe 2, the exhaust pipe 2 and the filter pipe 1 are connected by a pipe clamp 3 and a positioning bolt 4, and the other end of the filter pipe 1 is provided with an exhaust hole for gas to be discharged.

[0033] The surface of the filter tube 1 is provided with a clearance groove for the quick-release built-in part 5. The quick-release built-in part 5 is fixed to the clearance groove by a fixing bolt 6. The other end of the quick-release built-in part 5 is inserted into the first positioning frame 7 inside the filter tube 1. The quick-release built-in part 5 is provided with a filter cavity. Embedding holes for the first filter screen 8 are provided on both the left and right sides of the quick-release built-in part 5. Filter elements 9 are provided at equal intervals inside the filter cavity. Multiple embedding grooves communicating with the inside of the filter cavity are provided at equal intervals on the lower end surface of the quick-release built-in part 5. Reset holes for the positioning pin 10 are connected on both sides of each embedding groove. A reset spring 11 abuts between the positioning pin 10 and the reset hole.

[0034] The filter element 9 has a reserved cavity inside for placing the activated carbon filter plate 13. The front and rear sides of the reserved cavity are connected to the mounting grooves. The air filter plate 12 is fixed inside the mounting grooves. The quick-release built-in part 5 has a second positioning frame 14 installed at equal intervals inside for positioning the upper end of the filter element 9. Considering that the filter structure needs to be replaced regularly as the usage time increases, and that the current replacement requires disassembling the entire exhaust pipe 2, which is cumbersome and inconvenient, the filter pipe 1 and the exhaust pipe 2 of this utility model are fixed by a pipe clamp 3. Therefore, when the whole replacement is needed in the future, the pipe clamp 3 can be removed directly. Compared with the existing device with the filter structure built into the exhaust pipe, the convenience is significantly improved. Secondly, when replacing the filter element 9, it is only necessary to move the lever 16 to make the positioning pin 10 press the return spring 11 back into the return hole. At this time, the positioning pin 10 and the lower end of the filter element 9 no longer abut. The filter element 9 can then be directly pulled out for replacement. Compared with the existing method of disassembling the entire exhaust pipe for replacement, it is more convenient.

[0035] Each reset hole has a groove 15 at its lower end, and the groove 15 is located on the bottom surface of the filter tube 1. A lever 16 is movably connected inside the groove 15, and the lever 16 is fixedly installed on the lower side of one end of the positioning pin 10. The lever 16 facilitates the user to move the positioning pin 10, and the presence of the groove 15 provides space for the lever 16 to move.

[0036] The filter tube 1 has a slot for installing an air volume sensor 17 on one side of its lower end. The detection end of the air volume sensor 17 extends into the interior of the filter tube 1 and is located on one side of the exhaust pipe. The air volume sensor 17 is connected to the controller 18 at the lower end of the filter tube 1 via a wire. By setting the air volume sensor 17, the exhaust gas air volume emitted from the filter tube 1 is monitored. In conjunction with the controller 18, the controller can help the user know whether the filter element 9 needs to be replaced. That is, when the air volume obtained by the air volume sensor 17 is less than the normal emission threshold, it indicates that the filter element 9 is blocked.

[0037] The controller 18 has a motherboard inside, and the front end of the motherboard is connected to the battery module 19, the microcontroller 20, the remote control module 21, and the speaker 22. By setting up the speaker 22 and the remote controller 18, the driver can know in time whether the filter 9 needs to be replaced. The air volume sensor 17 obtains the analog value and then processes it through the microcontroller 20. After processing the data, the microcontroller 20 compares the result with the data in the database. When the data is lower than the normal emission level, the data will be transmitted to the vehicle system or the user's mobile phone through the remote control module 21 to remind the driver. At the same time, the speaker 22 will also emit an alarm sound for a double reminder.

[0038] The exhaust port is threaded with a dustproof component 23 on one side. The outer end of the dustproof component 23 is provided with a limiting groove for the installation of the second filter screen 24 at equal intervals. By setting the dustproof component 23, foreign objects are prevented from entering the filter pipe 1 and causing pipe blockage. At the same time, the presence of the second filter screen 24 can not only perform secondary filtration on the exhaust gas filtered by the filter component 9, but also prevent dust from entering the inside of the pipe.

[0039] The dustproof component 23 is fitted with a positioning ring 25, and the positioning ring 25 is fixedly bonded to the side end contact surface of the filter tube 1 with an anti-slip ring 26. The anti-slip ring 26 increases the friction between the positioning ring 25 and the contact surface of the filter tube 1.

[0040] The pipe clamp 3 is provided with a first sealing element 27 and a second sealing element 28 at the contact ends with the exhaust pipe 2 and the filter pipe 1, respectively. The first sealing element 27 and the second sealing element 28 are provided to increase the sealing between the pipe clamp 3 and the filter pipe 1 and the exhaust pipe 2.

[0041] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A diesel vehicle exhaust purification device, comprising a filter pipe (1), characterized in that, One end of the filter pipe (1) is connected to the discharge end of the exhaust pipe (2). The exhaust pipe (2) and the filter pipe (1) are connected by a pipe clamp (3) and a positioning bolt (4). The other end of the filter pipe (1) is provided with an exhaust hole for gas discharge. The surface of the filter tube (1) is provided with a clearance groove for the quick-release built-in part (5) to be installed. The quick-release built-in part (5) is fixed to the clearance groove by a fixing bolt (6). The other end of the quick-release built-in part (5) is inserted into the first positioning frame (7) inside the filter tube (1). The quick-release built-in part (5) is provided with a filter cavity. Embedding holes for the first filter screen (8) are provided on both the left and right sides of the quick-release built-in part (5). Filter elements (9) are provided at equal intervals inside the filter cavity. Multiple embedding grooves communicating with the inside of the filter cavity are provided at equal intervals on the lower surface of the quick-release built-in part (5). Reset holes for the positioning pin (10) to be installed are provided on both sides of each embedding groove. A reset spring (11) abuts against the positioning pin (10) and the reset hole. The filter element (9) has a reserved cavity for placing the activated carbon filter plate (13) inside. The front and rear sides of the reserved cavity are connected to the mounting groove. The air filter plate (12) is fixed inside the mounting groove. The quick-release built-in part (5) has a second positioning frame (14) installed at equal intervals inside for positioning the upper end of the filter element (9).

2. The diesel vehicle exhaust purification device according to claim 1, characterized in that, Each of the reset holes is connected to a strip groove (15) at its lower end, and the strip groove (15) is opened on the bottom surface of the filter tube (1). A lever (16) is movably connected inside the strip groove (15), and the lever (16) is fixedly installed on the lower side of one end of the positioning pin (10).

3. The diesel vehicle exhaust purification device according to claim 1, characterized in that, The filter tube (1) has a slot for installing an air volume sensor (17) on one side of its lower end. The detection end of the air volume sensor (17) extends into the interior of the filter tube (1) and is located on one side of the exhaust pipe. The air volume sensor (17) is connected to the controller (18) at the lower end of the filter tube (1) via a wire.

4. A diesel vehicle exhaust purification device according to claim 2, characterized in that, The controller (18) has a motherboard inside, and the front end of the motherboard is connected to a battery module (19), a microcontroller (20), a remote control module (21), and a speaker (22).

5. A diesel vehicle exhaust purification device according to claim 1, characterized in that, A dustproof component (23) is threaded to one side of the exhaust hole, and a limiting groove for installing the second filter screen (24) is provided at equal intervals on the outer end of the dustproof component (23).

6. A diesel vehicle exhaust purification device according to claim 5, characterized in that, The dustproof component (23) is fitted with a positioning ring (25), and the positioning ring (25) is fixedly bonded to the side end contact surface of the filter tube (1) with an anti-slip ring (26).

7. A diesel vehicle exhaust purification device according to claim 5, characterized in that, The pipe clamp (3) is provided with a first sealing element (27) and a second sealing element (28) at the contact end with the exhaust pipe (2) and the filter pipe (1), respectively.

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