Engine tail gas purification treatment device

Abstract

The utility model relates to the field of tail gas purification, in particular to an engine tail gas purification treatment device which comprises an air inlet pipe and a silencing pipe which are communicated with each other, the output end of the silencing pipe is connected with two exhaust pipes, arc blocks are arranged on the inner walls of the exhaust pipes in a protruding mode, and the arc blocks are of a curved surface wedge-shaped structure. A rotating column is rotationally connected into the exhaust pipe, and a purifying device is arranged in the rotating column in a sleeved mode. An annular groove is formed in the purification device, a sliding groove is formed in the rotating column in the radial direction, and a push block is arranged in the sliding groove; the push block and the sliding groove are elastically and slidably connected in the radial direction of the rotary column. Inserting rods are fixedly connected to the surfaces, close to the purifying device, of the pushing blocks; when the push block is in contact with the thick end of the arc block, the insertion rod extends out of the sliding groove and is inserted into the annular groove, and when the push block is separated from the arc block, the insertion rod is separated from the annular groove under the action of elastic force. The utility model can realize quick disassembly and assembly, reduce the downtime, improve the efficiency, prolong the service life of equipment, and reduce the influence on the operation of an engine.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas purification, specifically to an engine exhaust gas purification and treatment device. Background Technology

[0002] In existing engine exhaust purification devices, the need for quick installation and disassembly is becoming increasingly prominent. However, the design of traditional purification devices often fails to meet this requirement. Currently, most exhaust purification devices (such as three-way catalytic converters, diesel particulate filters, selective catalytic reduction systems, etc.) are usually integrated with the engine exhaust system by welding, bolting, or complex pipeline connections, which is inconvenient to install and disassemble and requires a long time. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and to propose an engine exhaust gas purification and treatment device.

[0004] The solution is an engine exhaust gas purification device, characterized by comprising an intake pipe and a muffler pipe connected to each other, with two exhaust pipes connected to the output end of the muffler pipe. An arc block, which is a curved wedge-shaped structure, is protruding from the inner wall of the exhaust pipe. A rotating column is rotatably connected inside the exhaust pipe, and a purification device is fitted inside the rotating column. An annular groove is formed on the purification device, and a radial sliding groove is formed on the rotating column. A push block is provided within the sliding groove. The push block, annular groove, and sliding groove all correspond circumferentially to the arc block. The push block and sliding groove are elastically slidably connected along the radial direction of the rotating column. A rod is fixedly connected to the side of the push block closest to the purification device. Rotating the rotating column simultaneously drives the push block to rotate. When the push block contacts the thicker end of the arc block, the rod extends out of the sliding groove and inserts into the annular groove. When the push block disengages from the arc block, the rod disengages from the annular groove under elastic force.

[0005] Preferably, two elastic elements are provided axially inside the groove, and the two elastic elements are symmetrically arranged on both sides of the push block; one end of the elastic element is fixed to the bottom of the groove, and the other end of the elastic element is fixedly connected to a slider, which is fixedly connected to the push block and contacts the side wall of the groove.

[0006] Preferably, the size of the insert rod is adapted to the size of the annular groove.

[0007] Preferably, the air intake area of ​​the exhaust pipe is the same as the air intake area of ​​the air intake pipe.

[0008] Preferably, the arc block, push block, insert rod, and slide groove are equipped with multiple [components / equipment].

[0009] Preferably, a sealing element is provided between the exhaust pipe and the purification device.

[0010] Preferably, both the exhaust pipe and the rotating column are provided with threaded holes, and when the push block contacts the thicker end of the arc block, the two threaded holes are aligned; a threaded rod can be inserted into the threaded hole.

[0011] Preferably, the end of the rotating column opposite to the intake pipe extends out of the exhaust pipe and is fixedly provided with a lever. The diameter of the lever is larger than the diameter of the exhaust pipe, and the lever is provided with several grooves.

[0012] Beneficial effects:

[0013] 1. Regular maintenance and repair are key to ensuring the efficient operation of the purification device. This device can be quickly disassembled and assembled, reducing downtime, improving efficiency, and extending the service life of the equipment.

[0014] 2. As consumables, filters or catalysts need to be replaced regularly. Quick disassembly and assembly can shorten replacement time and reduce the impact of maintenance on engine operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the pressure vessel of this utility model;

[0018] Figure 3 This is a schematic diagram of the rotating column structure;

[0019] Figure 4 This is a schematic diagram of the exhaust pipe structure;

[0020] Figure 5 This is a schematic diagram showing the position of the arc block inside the exhaust pipe;

[0021] Figure 6 This is a schematic diagram of the rotating column installation.

[0022] In the diagram: 1. Silencer pipe; 2. Intake pipe; 3. Exhaust pipe; 4. Block; 5. Rotary column; 6. Purification device; 7. Arc block; 9. Push block; 10. Insert rod; 11. Ring groove; 12. Slide groove; 13. Slider; 14. Elastic element; 17. Seal; 18. Threaded hole; 19. Threaded rod. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 5 As shown, an engine exhaust gas purification device is characterized by comprising an intake pipe 2 and a muffler pipe 1 connected to each other. The output end of the muffler pipe 1 is connected to two exhaust pipes 3. Engine exhaust gas is directly connected to the intake pipe 2, and enters the muffler pipe 1 for noise reduction. The noise-reduced exhaust gas is divided into two parts, which enter the two exhaust pipes 3 respectively. An arc block 7 is protruding from the inner wall of the exhaust pipe 3, and the arc block 7 has a curved wedge-shaped structure. A rotating column 5 is rotatably connected inside the exhaust pipe 3, and a purification device 6 is sleeved inside the rotating column 5. An annular groove 11 is formed on the purification device 6. A radial groove 12 is provided on the column 5, and a push block 9 is provided in the groove 12. The push block 9, the annular groove 11, and the groove 12 are all circumferentially corresponding to the arc block 7. The push block 9 and the groove 12 are elastically slidably connected along the radial direction of the rotating column 5. A plug rod 10 is fixedly connected to the side of the push block 9 near the purification device 6. Rotating the rotating column 5 drives the push block 9 to rotate. When the push block 9 contacts the thicker end of the arc block 7, the plug rod 10 extends out of the groove 12 and inserts into the annular groove 11. When the push block 9 disengages from the arc block 7, the plug rod 10 disengages from the annular groove 11 under the action of elastic force. This device uses the cooperation of the plug rod 10 and the annular groove 11 to achieve the purpose of axial locking of the purification device 6, thereby realizing the function of quick disassembly and quick assembly. Before installing the purification device 6, first insert the purification device 6 into the rotating column 5. Rotating the rotating column 5 causes the push block 9 to rotate relative to the arc block 7. As the push block 9 gradually contacts the arc block 7, it is squeezed by the arc block 7 and slides against the elastic force towards the purification device 6. The insertion rod 10 gradually extends out of the sliding groove 12. When the push block 9 contacts the thicker end of the arc block 7, the insertion rod 10 fully extends into the annular groove 11 on the purification device 6, restricting the axial movement of the purification device 6. After contacting the bottom of the annular groove 11, the push block 9 cannot continue to rotate towards the thicker end of the arc block 7. When disassembling the purification device 6, rotating the rotating column 5 in the opposite direction causes the push block 9 to quickly reset under the elastic force, and the insertion rod 10 releases the restriction between itself and the annular groove 11. The rotating column 5 and the exhaust pipe 3 are not limited to a rotatable connection via bearings.

[0025] Two elastic elements 14 are axially arranged within the slide groove 12, symmetrically positioned on both sides of the push block 9. One end of each elastic element 14 is fixed to the bottom of the slide groove 12, and the other end is fixedly connected to a slider 13. The slider 13 is fixedly connected to the push block 9 and contacts the side wall of the slide groove 12. The slider 13 moves together with the push block 9, positioned between the push block 9 and the slide groove 12. The slider 13 guides and limits the movement trajectory of the push block 9, maintaining a consistent movement path and ensuring that the push block 9 does not axially deviate within the slide groove 12. This, in turn, ensures that the insertion rod 10 is accurately inserted into the annular groove 11.

[0026] The size of the insertion rod 10 is adapted to the size of the annular groove 11. The insertion rod 10 not only needs to be accurately inserted into the annular groove 11, but also needs to ensure that the purification device 6 does not axially shake after being inserted into the annular groove 11. Therefore, the size of the insertion rod 10 must be adapted to the size of the annular groove 11.

[0027] The air intake area of ​​the exhaust pipe 3 is the same as that of the air intake pipe 2. Since there are two exhaust pipes 3, the gas is divided into two parts for filtration, that is, the actual filtration area is twice the exhaust gas intake area, which effectively reduces the workload of a single purification device 6 and extends the service life of the purification device 6.

[0028] Multiple arc blocks 7, push blocks 9, insertion rods 10, and sliding grooves 12 are provided in combination. The annular groove 11 is a full circle of slots. A single push block 9 driving the insertion rod 10 to lock the purification device 6 is prone to wear during long-term use. By setting multiple matching push blocks 9 to distribute the force evenly, the service life of the push blocks 9 and insertion rods 10 is extended, while the locking function of the purification device 6 is enhanced.

[0029] A sealing element 17 is provided between the exhaust pipe 3 and the purification device 6. Since the purification device 6 is a detachable component, the sealing element 17 is squeezed when the purification device 6 is installed, which can effectively prevent exhaust gas from leaking at the connection between the exhaust pipe 3 and the purification device 6, thereby improving the efficiency of exhaust gas purification.

[0030] Both the exhaust pipe 3 and the rotating column 5 are provided with threaded holes 18. When the push block 9 contacts the thicker end of the arc block 7, the two threaded holes 18 are aligned. A threaded rod 19 can be inserted into the threaded hole 18. The operator screws the threaded rod 19 into the threaded hole 18 to fix the position between the exhaust pipe 3 and the rotating column 5, so as to avoid unstable contact between the arc block 7 and the push block 9 due to engine vibration, which would cause the limit switch to fail.

[0031] The rotating column 5 extends from the exhaust pipe 3 at the end opposite to the intake pipe 2 and is fixedly equipped with a lever 4. The diameter of the lever 4 is larger than that of the exhaust pipe 3, and the lever 4 has several grooves. Since the rotating column 5 is located between the exhaust pipe 3 and the purification device 6, it is inconvenient for the operator to rotate it. Therefore, the lever 4 protruding from the exhaust pipe 3 is provided. During operation, the operator uses the grooves to rotate the lever 4, thereby driving the rotating column 5 to rotate, which is convenient for operation.

[0032] Working principle: When installing the purification device 6, the operator rotates the lever 4 to rotate the rotating column 5. The operator then contacts the push block 9 with the thicker end of the arc block 7, causing the arc block 7 to press against the push block 9 and push the insertion rod 10 into the annular groove 11, thus securing the purification device 6. When disassembling the purification device 6, the operator rotates the lever 4 in the opposite direction, causing the rotating column 5 to rotate in the opposite direction. The push block 9 rotates towards the thinner end of the arc block 7, and the insertion rod 10 exits the annular groove 11 under the reaction force of the elastic element 14. At this point, the purification device 6 can be pulled out. Through the above settings, the operator can quickly install and disassemble the purification device 6.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An engine exhaust gas purification and treatment device, characterized in that, The system includes an intake pipe (2) and a muffler pipe (1) that are interconnected. The output end of the muffler pipe (1) is connected to two exhaust pipes (3). An arc block (7) is protruding on the inner wall of the exhaust pipe (3). The arc block (7) is a curved wedge-shaped structure. A rotating column (5) is rotatably connected inside the exhaust pipe (3). A purification device (6) is fitted inside the rotating column (5). An annular groove (11) is opened on the purification device (6). A sliding groove (12) is radially opened on the rotating column (5). A push block (9) is provided in the sliding groove (12). The push block (9), the annular groove (11), and the sliding groove (12) are all connected to the air intake pipe (2). The arc block (7) corresponds to the circumferential direction of the rotating column (5); the push block (9) and the slide groove (12) are elastically slidably connected along the radial direction of the rotating column (5); the push block (9) is fixedly connected to the side of the purification device (6) with a plug rod (10); rotating the rotating column (5) simultaneously drives the push block (9) to rotate. When the push block (9) contacts the thicker end of the arc block (7), the plug rod (10) extends out of the slide groove (12) and inserts into the annular groove (11). When the push block (9) disengages from the arc block (7), the plug rod (10) disengages from the annular groove (11) under the action of elastic force.

2. The engine exhaust gas purification and treatment device according to claim 1, characterized in that, Two elastic elements (14) are provided in the groove (12) along the axial direction of the rotating column (5). The two elastic elements (14) are symmetrically arranged on both sides of the push block (9). One end of the elastic element (14) is fixed to the bottom of the groove (12), and the other end of the elastic element (14) is fixedly connected to a slider (13). The slider (13) is fixedly connected to the push block (9), and the slider (13) is in contact with the side wall of the groove (12).

3. The engine exhaust gas purification and treatment device according to claim 2, characterized in that, The dimensions of the insert (10) are adapted to the dimensions of the annular groove (11).

4. An engine exhaust gas purification and treatment device according to any one of claims 1-3, characterized in that, The air intake area of ​​the exhaust pipe (3) is the same as that of the air intake pipe (2).

5. The engine exhaust gas purification and treatment device according to claim 4, characterized in that, The arc block (7), push block (9), insert rod (10), and slide groove (12) are provided in multiple ways.

6. The engine exhaust gas purification and treatment device according to claim 5, characterized in that, A sealing element (17) is provided between the exhaust pipe (3) and the purification device (6).

7. The engine exhaust gas purification and treatment device according to claim 6, characterized in that, Both the exhaust pipe (3) and the rotating column (5) are provided with threaded holes (18). When the push block (9) contacts the thicker end of the arc block (7), the two threaded holes (18) are aligned; a threaded rod (19) can be inserted into the threaded hole (18).

8. The engine exhaust gas purification and treatment device according to claim 7, characterized in that, The rotating column (5) extends from the exhaust pipe (3) at the end opposite to the intake pipe (2) and is fixedly provided with a lever (4). The diameter of the lever (4) is larger than the diameter of the exhaust pipe (3), and several grooves are provided on the lever (4).

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