Tail gas particle trap of gasoline direct injection engine

Abstract

The utility model relates to the technical field of engine tail gas, and discloses a gasoline direct injection engine tail gas particle catcher which comprises a shell, one side of the shell is fixedly connected with an air inlet, the side, opposite to the air inlet, of the shell is hollow, the surface of the air inlet is sleeved with a tail gas pipe, and the tail gas pipe is provided with a gas outlet. An air inlet is formed in the upper surface of the shell, a fixing mechanism is arranged on the surface of the air inlet, a filter plate penetrates through the upper surface of the shell and is in sliding connection with the interior of the shell, and a locking mechanism is arranged on one side of the filter plate. According to the gasoline direct injection engine tail gas particle trap, the fixing mechanism, the filter plate and the locking mechanism are arranged, so that the gasoline direct injection engine tail gas particle trap can be directly mounted at an outlet of an automobile exhaust pipeline, the mounting and dismounting efficiency is improved, and meanwhile, the filter plate and the locking mechanism are arranged, so that after the filter plate loses efficacy after being used for a long time, the filter plate cannot be damaged. And the device can be pulled out from the shell for replacement under the action of the locking mechanism, so that the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engine tail gas, in particular to an in-cylinder direct injection gasoline engine tail gas particle collector. Background Art

[0002] Traditional engines produce a certain amount of particulate matter during the combustion process. These particulate matter are mainly composed of incompletely burned carbon soot and other tiny particles, posing a potential threat to the environment and human health.

[0003] After consulting the relevant patent document CN203702290U, it is found that there are still some problems with the existing exhaust particulate filter for direct injection gasoline engines. The optimization solutions currently on the market are mainly: by setting a shell, a filter element is provided in the inner cavity of the shell, and the two ends of the filter element are flush with the two end surfaces of the shell respectively; the middle longitudinal section of the filter element is in a uniformly distributed grid shape, and the axial ends of the mesh on the middle section of the filter element are open at one end and blind holes at the other end. However, this type of exhaust particulate capture device needs to be installed at the bottom of the car, which is inconvenient to install. At the same time, the device is easily scratched by the uneven road surface during driving, thereby causing damage to the device. In addition, the filter element inside the device is not convenient to replace after long-term use. In view of the above problems, a fixing mechanism, a filter plate and a locking mechanism are provided, so that the device can be directly installed at the outlet of the automobile exhaust pipe, and the setting of the fixing mechanism can effectively avoid the use of screws, thereby improving the efficiency of installation and disassembly. At the same time, the filter plate and the locking mechanism are provided, so that the filter plate can be pulled out from the casing and replaced through the action of the locking mechanism after it fails after long-term use, thereby avoiding the replacement of the entire device and increasing the service life of the device. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an exhaust particulate collector for a direct injection gasoline engine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust particulate collector for a direct-injection gasoline engine, comprising a shell, one side of the shell is fixedly connected to an air inlet, the shell is hollow relative to one side of the air inlet, the surface of the air inlet is sleeved with an exhaust pipe, the surface of the air inlet is provided with a fixing mechanism, the upper surface of the shell is penetrated by a filter plate, the filter plate is slidably connected to the inside of the shell, one side of the filter plate is provided with a locking mechanism, and the locking mechanisms are symmetrically distributed with the filter plate as the axis.

[0006] As a further improvement of the above scheme, the fixing mechanism includes a fixing ring, a stopper is fixedly connected to one side of the fixing ring, the stoppers are symmetrically distributed with the fixing ring as the axis, the stoppers are grouped in pairs, and a moving rod is slidably connected between each group of stoppers.

[0007] As a further improvement of the above scheme, one end of the moving rod is fixedly connected to a limiting block, the limiting block is slidably connected to the surface of the block, one end of the moving rod away from the limiting block is fixedly connected to a splint, and an adjusting bolt passes through the inside of the moving rod.

[0008] As a further improvement of the above scheme, the adjusting bolt is rotatably connected to the moving rod, one end of the adjusting bolt is fixedly connected to a limiting plate, the limiting plate is a double-layer arrangement, a fixed block is rotatably connected between the double layers, the fixed block is fixedly connected to the surface of the fixing ring, and the fixing ring is fixedly connected to the surface of the air inlet.

[0009] As a further improvement of the above scheme, a rubber sheet is fixedly connected to the top of the filter plate, and the rubber sheet is symmetrically distributed with the filter plate as the axis. A plurality of filter pores are opened on the surface of the filter plate, and a fixing plate is fixedly connected to one side of the top of the filter plate.

[0010] As a further improvement of the above scheme, the locking mechanism includes a support block, which is fixedly connected to the surface of the shell, and the support block is internally rotatably connected to a rotating shaft. The support blocks are symmetrically distributed around the rotating shaft, and a trapezoidal lock head is fixedly connected to the surface of the rotating shaft.

[0011] As a further improvement of the above scheme, a pin is passed through the inside of the support block, one end of the pin is fixedly connected to a stop cap, the end of the pin away from the stop cap is rotatably connected to a fixing nut, the fixing nut is rotatably connected to the support block, the pin is slidably connected to the support block, and the trapezoidal lock head is contact-connected to the fixed plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This type of exhaust particulate filter for direct-injection gasoline engines can be directly installed at the outlet of the automobile exhaust pipe by setting a fixing mechanism, a filter plate and a locking mechanism. The setting of the fixing mechanism can effectively avoid the use of screws for fixing, thereby improving the efficiency of installation and disassembly. At the same time, the filter plate and the locking mechanism can be pulled out of the casing and replaced through the action of the locking mechanism after the filter plate fails after long-term use, thereby avoiding the replacement of the entire device and improving the service life of the device.

[0014] 2. When installing the exhaust particulate filter of this type of direct injection gasoline engine, first align the air intake port with the exhaust pipe, then connect the exhaust pipe to the surface of the air intake port, and then turn the adjusting bolt. At this time, the moving rod will move along the adjusting bolt. Due to the coordinated use of the limit block and the moving rod, the moving rod will not slide or shift in position during the movement. When the splint is against the surface of the exhaust pipe, it can stop rotating. At this point, the operation of fixing the shell inside the exhaust pipe is completed. When the filter plate needs to be replaced, the fixing nut is rotated out of the latch, and then the latch is pulled out of the support block so that the trapezoidal lock can rotate, and then the filter plate is pulled out upward. During the lifting process of the fixing plate, the trapezoidal lock is rotated upward, so that the filter plate is unlocked from the locking mechanism, and the replacement of the filter plate is completed. Conversely, when installing the filter plate, the above operation can be reversed. This structure avoids opening holes on the surface of the shell for fixing, thereby improving the sealing performance of the device and the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal cross-section of the utility model;

[0017] Figure 3 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the filter plate of the utility model;

[0019] Figure 5 This is a schematic diagram of the locking mechanism structure of the utility model.

[0020] Description of main symbols:

[0021] 1. Shell; 2. Air inlet; 3. Exhaust pipe; 4. Fixing mechanism; 401. Fixing ring; 402. Block; 403. Moving rod; 404. Limiting block; 405. Adjusting bolt; 406. Limiting plate; 407. Fixing block; 408. Clamp; 5. Filter plate; 501. Rubber sheet; 502. Filter pores; 503. Fixing plate; 6. Locking mechanism; 601. Support block; 602. Rotating shaft; 603. Trapezoidal lock; 604. Latch; 605. Blocking cap; 606. Fixing nut. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example

[0023] Please combine Figure 1-5 The exhaust particulate filter of a direct injection gasoline engine of the present embodiment comprises a shell 1, one side of the shell 1 is fixedly connected with an air inlet 2, the shell 1 is hollow on one side relative to the air inlet 2, an exhaust pipe 3 is sleeved on the surface of the air inlet 2, a fixing mechanism 4 is arranged on the surface of the air inlet 2, a filter plate 5 is penetrated through the upper surface of the shell 1, the filter plate 5 is slidably connected with the inside of the shell 1, a locking mechanism 6 is arranged on one side of the filter plate 5, and the locking mechanisms 6 are symmetrically distributed with the filter plate 5 as the axis.

[0024] The fixing mechanism 4 includes a fixing ring 401 , one side of which is fixedly connected to a stopper 402 . The stoppers 402 are symmetrically distributed around the fixing ring 401 , and two stoppers 402 form a group. A moving rod 403 is slidably connected between each group of stoppers 402 .

[0025] One end of the moving rod 403 is fixedly connected to the limiting block 404 , and the limiting block 404 is slidably connected to the surface of the stopper 402 . The end of the moving rod 403 away from the limiting block 404 is fixedly connected to the clamping plate 408 , and an adjusting bolt 405 penetrates the inside of the moving rod 403 .

[0026] The adjusting bolt 405 is rotatably connected to the moving rod 403. One end of the adjusting bolt 405 is fixedly connected to a limiting plate 406. The limiting plate 406 is a double-layer arrangement. A fixed block 407 is rotatably connected between the double layers. The fixed block 407 is fixedly connected to the surface of the fixing ring 401, and the fixing ring 401 is fixedly connected to the surface of the air inlet 2.

[0027] A rubber sheet 501 is fixedly connected to the top of the filter plate 5 . The rubber sheets 501 are symmetrically distributed around the filter plate 5 . A plurality of filter pores 502 are formed on the surface of the filter plate 5 . A fixing plate 503 is fixedly connected to one side of the top of the filter plate 5 .

[0028] The locking mechanism 6 includes a support block 601, which is fixedly connected to the surface of the housing 1. The support block 601 is rotatably connected to a shaft 602. The support block 601 is symmetrically distributed around the shaft 602. A trapezoidal lock head 603 is fixedly connected to the surface of the shaft 602.

[0029] A latch 604 runs through the inside of the support block 601, one end of the latch 604 is fixedly connected to a stop cap 605, the end of the latch 604 away from the stop cap 605 is rotatably connected to a fixing nut 606, the fixing nut 606 is rotatably connected to the support block 601, the latch 604 and the support block 601 are slidably connected, and the trapezoidal lock head 603 is in contact connection with the fixed plate 503.

[0030] The working principle of an exhaust particulate filter for a direct-injection gasoline engine in the embodiment of the present application is as follows: when installing the device, first align the air inlet 2 with the exhaust pipe 3, then sleeve the exhaust pipe 3 into the surface of the air inlet 2, and then turn the adjusting bolt 405, which will cause the moving rod 403 to move along the adjusting bolt 405. Due to the coordinated use of the limit block 404 and the moving rod 403, the moving rod 403 will not slide or shift in position during the movement, and the rotation can be stopped when the splint 408 presses against the surface of the exhaust pipe 3, thereby completing the fixing of the housing 1 inside the exhaust pipe 3. When the filter plate 5 needs to be replaced, the fixing nut 606 is rotated out of the latch 604, and then the latch 604 is pulled out from the support block 601, so that the trapezoidal lock 603 can be rotated, and then the filter plate 5 is pulled out upward, and the trapezoidal lock 603 is rotated upward during the lifting of the fixing plate 503, so that the filter plate 5 is unlocked from the locking mechanism 6, and the replacement of the filter plate 5 is completed. Conversely, when installing the filter plate 5, the above operation can be reversed. This structure avoids opening holes on the surface of the shell 1 for fixing, thereby improving the sealing of the device and the convenience of installation.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An exhaust particulate filter for a direct injection gasoline engine, characterized in that: The invention comprises a shell (1), one side of the shell (1) is fixedly connected to an air inlet (2), the shell (1) is hollow relative to one side of the air inlet (2), a tailpipe (3) is sleeved on the surface of the air inlet (2), a fixing mechanism (4) is arranged on the surface of the air inlet (2), a filter plate (5) is penetrated through the upper surface of the shell (1), the filter plate (5) is slidably connected to the inside of the shell (1), a locking mechanism (6) is arranged on one side of the filter plate (5), and the locking mechanism (6) is symmetrically distributed with the filter plate (5) as the axis.

2. The exhaust particulate filter for a direct injection gasoline engine according to claim 1, characterized in that: The fixing mechanism (4) comprises a fixing ring (401), a stopper (402) being fixedly connected to one side of the fixing ring (401), the stoppers (402) being symmetrically distributed around the fixing ring (401), two of the stoppers (402) forming a group, and a moving rod (403) being slidably connected between each group of the stoppers (402).

3. The exhaust particulate filter of a direct injection gasoline engine as claimed in claim 2, characterized in that: One end of the moving rod (403) is fixedly connected to a limiting block (404), the limiting block (404) is slidably connected to the surface of the stopper (402), one end of the moving rod (403) away from the limiting block (404) is fixedly connected to a clamping plate (408), and an adjusting bolt (405) penetrates the interior of the moving rod (403).

4. The exhaust particulate filter of a direct injection gasoline engine as claimed in claim 3, characterized in that: The adjusting bolt (405) is rotatably connected to the moving rod (403); one end of the adjusting bolt (405) is fixedly connected to a limiting plate (406); the limiting plate (406) is double-layered; a fixing block (407) is rotatably connected between the double layers; the fixing block (407) is fixedly connected to the surface of the fixing ring (401); and the fixing ring (401) is fixedly connected to the surface of the air inlet (2).

5. The exhaust particulate filter for a direct injection gasoline engine according to claim 1, characterized in that: A rubber sheet (501) is fixedly connected to the top of the filter plate (5); the rubber sheets (501) are symmetrically distributed with the filter plate (5) as the axis; a plurality of filter pores (502) are provided on the surface of the filter plate (5); and a fixing plate (503) is fixedly connected to one side of the top of the filter plate (5).

6. The exhaust particulate filter for a direct injection gasoline engine according to claim 1, characterized in that: The locking mechanism (6) comprises a support block (601), the support block (601) being fixedly connected to the surface of the housing (1), the support block (601) being rotatably connected to a rotating shaft (602) inside, the support blocks (601) being symmetrically distributed around the rotating shaft (602), and a trapezoidal lock head (603) being fixedly connected to the surface of the rotating shaft (602).

7. The exhaust particulate filter of a direct injection gasoline engine as claimed in claim 6, characterized in that: A latch (604) passes through the support block (601), one end of the latch (604) is fixedly connected to a stop cap (605), one end of the latch (604) away from the stop cap (605) is rotatably connected to a fixing nut (606), the fixing nut (606) is rotatably connected to the support block (601), the latch (604) and the support block (601) are slidably connected, and the trapezoidal lock head (603) is contact-connected to the fixing plate (503).

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