Novel non-road post-processing side-entering cylinder structure

Abstract

The utility model provides a novel non-road post-processing side inlet cylinder structure which comprises a cylinder, the side wall of the cylinder is fixedly connected with a turnup, and an air inlet pipe extends into the cylinder and is welded with the turnup; a groove is formed in the side wall of the air inlet pipe, a sealing ring is sleeved with the groove, and the sealing ring abuts against the inner side wall of the cylinder. A plurality of elastic pieces are installed on the side wall of the air inlet pipe and abut against the side wall of the sealing ring. The novel non-road post-processing side inlet barrel structure has the advantage that the firmness between the air inlet pipe and the side inlet barrel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a novel side-in cylinder structure for off-road post-treatment. Background Art

[0002] Off-road mobile machinery refers to in-use off-road mobile machinery that meets the national standard I or below. It mainly includes, but is not limited to, excavators, bulldozers, loaders, etc. Diesel engines are the core power equipment of off-road machinery. During the operation of diesel engines, the diesel engines will emit tail gas containing components such as NOX and PM. If the tail gas is not properly treated, it will inevitably cause environmental pollution and have a negative impact on normal production and life. The oxidation catalysis technology is a mature technical solution for post-treatment of diesel engine tail gas. The DOC catalyst is used to chemically treat the nitrogen oxides in the tail gas, and the efficient treatment of diesel engine tail gas can be achieved in a short time.

[0003] The tail gas at the diesel engine emission enters the post-treatment catalyst through the side-in cylinder. An air inlet pipe is welded to the surface of the side-in cylinder. A weld around the air inlet pipe and the side-in cylinder is the fixing part between the two. High-temperature gas enters the interior of the side-in cylinder through the air inlet pipe. The weld is in a high-temperature state for a long time, and the weld area is small. As the use time increases, the weld gradually cracks, resulting in looseness between the air inlet pipe and the side-in cylinder.

[0004] Therefore, it is necessary to provide a new novel side-in cylinder structure for off-road post-treatment to solve the above problems. Summary of the Utility Model

[0005] The technical problem solved by the utility model is to provide a novel side-in cylinder structure for off-road post-treatment that increases the firmness between the air inlet pipe and the side-in cylinder.

[0006] To solve the above technical problem, the novel side-in cylinder structure for off-road post-treatment provided by the utility model includes: a cylinder body, a flange is fixedly connected to the side wall of the cylinder body, and the air inlet pipe extends into the interior of the cylinder body and is welded to the flange; a groove is provided on the side wall of the air inlet pipe, a sealing ring is sleeved inside the groove, and the sealing ring abuts against the inner side wall of the cylinder body; a plurality of elastic sheets are installed on the side wall of the air inlet pipe, and the elastic sheets abut against the side wall of the sealing ring.

[0007] Preferably, the height of the flange is 5 to 10 mm.

[0008] Preferably, the cross-section of the flange is trapezoidal, a plurality of reinforcing bars are installed on the side wall of the air inlet pipe, and the reinforcing bars are welded to the flange.

[0009] Preferably, a flange is welded to one end of the cylinder body, and the flange and the air inlet pipe are respectively located on both sides of the cylinder body.

[0010] Preferably, one end of the elastic sheet is located inside the groove, and the side wall of the elastic sheet is in an arc structure.

[0011] Preferably, the cross-section of the sealing ring is in an "L" shape, and the sealing ring and the elastic sheet are located inside the cylinder body.

[0012] Compared with the related art, the novel non-road aftertreatment side-inlet cylinder structure provided by the present utility model has the following beneficial effects:

[0013] The present utility model provides a novel non-road aftertreatment side-inlet cylinder structure. The sealing ring is sleeved inside the groove, the elastic sheet abuts against the sealing ring, and the sealing ring is fixed inside the groove. The air inlet pipe is inserted into the inside of the flanging. As the air inlet pipe moves downward, the inner side wall of the flanging squeezes the elastic sheet and the sealing ring, causing the elastic sheet and the sealing ring to be squeezed and deformed into the inside of the groove, facilitating the sealing ring and the elastic sheet to slide out from the inside of the flanging and enter the inside of the cylinder body; when the sealing ring and the elastic sheet slide out from the inside of the cylinder body, the sealing ring and the elastic sheet return to their original shapes, the sealing ring clamps the connection between the air inlet pipe and the cylinder body, and the elastic sheet abuts against and squeezes the sealing ring upward, increasing its sealing performance. At the same time, the air inlet pipe is pulled downward to prevent the air inlet pipe from shaking during the welding process between the air inlet pipe and the flanging; and the flanging and the air inlet pipe are welded with only one weld seam, which improves the welding efficiency, thereby improving the production efficiency, and the flanging increases the connection stability between the air inlet pipe and the cylinder body; and a plurality of reinforcing rods are welded on the side wall of the air inlet pipe, and the reinforcing rods are welded with the flanging to further increase the connection stability between the air inlet pipe and the flanging; during the use of the air inlet pipe, the mutually welded flanging, air inlet pipe and reinforcing rods fix the air inlet pipe outside the cylinder body, and the elastic sheet inside the cylinder body squeezes the rubber pad upward to fix the air inlet pipe inside the cylinder body, thereby increasing the firmness of the air inlet pipe during use; the original bushing structure for fixing the air inlet pipe is cancelled in this device, making it integrated with the cylinder body, reducing the design cost, and compared with the previous structure, this side-inlet cylinder structure can effectively reduce the die states and types, shorten the development cycle, and accelerate the project development progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a preferred embodiment of the novel non-road aftertreatment side-inlet cylinder structure provided by the present utility model;

[0015] Figure 2 is Figure 1 the schematic diagram of the internal structure of the cylinder shown;

[0016] Figure 3 The Figure 2 amplified schematic view of the structure at position A shown in the figure.

[0017] Reference numerals in the figure: 1, cylinder body; 2, flange; 3, flanging; 4, intake pipe; 5, reinforcing rod; 6, intake hole; 7, groove; 8, sealing ring; 9, elastic sheet. Specific implementation manners

[0018] The present utility model will be further described below in conjunction with the accompanying drawings and implementation manners.

[0019] Please refer to Figures 1 to 3 , Figure 1 which is a schematic structural view of a preferred embodiment of the novel non-road aftertreatment side-inlet cylinder body structure provided by the present utility model; Figure 2 is Figure 1 the schematic view of the internal structure of the cylinder body shown in the figure; Figure 3 is Figure 2Schematic enlarged view of the structure at position A shown. The new non-road after-treatment side-inlet cylinder structure includes: a cylinder 1, a flange 3 is fixedly connected to the side wall of the cylinder 1, and an air inlet pipe 4 extends into the interior of the cylinder 1 and is welded between the flange 3; a groove 7 is provided on the side wall of the air inlet pipe 4, and a sealing ring 8 is sleeved inside the groove 7, and the sealing ring 8 abuts against the inner side wall of the cylinder 1; a plurality of elastic pieces 9 are installed on the side wall of the air inlet pipe 4, and the elastic pieces 9 abut against the side wall of the sealing ring 8; a plurality of reinforcing rods 5 are installed on the side wall of the air inlet pipe 4, and the reinforcing rods 5 are welded to the flange 3; the sealing ring 8 is sleeved inside the groove 7, the elastic pieces 9 abut against the sealing ring 8, fixing the sealing ring 8 inside the groove 7, inserting the air inlet pipe 3 into the inside of the flange 3, as the air inlet pipe 4 moves downward, the inner side wall of the flange 3 squeezes the elastic pieces 9 and the sealing ring 8, causing the elastic pieces 9 and the sealing ring 8 to be squeezed and deformed into the inside of the groove 7, facilitating the sealing ring 8 and the elastic pieces 9 to slide out of the inside of the flange 3 into the inside of the cylinder 1; when the sealing ring 8 and the elastic pieces 9 slide out of the inside of the cylinder 1, the sealing ring 8 and the elastic pieces 9 return to their original shapes, the sealing ring 8 clamps the connection between the air inlet pipe 4 and the cylinder 1, and the elastic pieces 9 abut against and squeeze the sealing ring 8 upward, increasing its sealing performance, and at the same time pulling the air inlet pipe 4 downward to prevent the air inlet pipe 4 from shaking during the welding process between the air inlet pipe 4 and the flange 6; and the flange 3 and the air inlet pipe 4 are welded with only one weld seam, improving the welding efficiency, thereby improving the production efficiency, and the flange 6 increases the contact area between the air inlet pipe 4 and the flange 6, increasing the stability of the connection between the air inlet pipe 4 and the cylinder 1; and a plurality of the reinforcing rods 5 are welded to the side wall of the air inlet pipe 4, and the welding of the reinforcing rods 5 and the flange 3 further increases the stability of the connection between the air inlet pipe 4 and the flange 3; during the use of the air inlet pipe 4, the mutually welded flange 3, air inlet pipe 4 and reinforcing rods 5 fix the air inlet pipe 4 outside the cylinder 1, and the elastic piece 9 inside the cylinder 1 squeezes the rubber pad 8 upward to fix the air inlet pipe 6 inside the cylinder 1, thereby increasing the firmness of the air inlet pipe 6 during use.

[0020] The cross-section of the flange 3 is trapezoidal to increase the welding area between the flange 3 and the reinforcing rod 5 and improve the firmness of the two.

[0021] The height of the flange 3 is 5 to 10 mm to facilitate the welding between the flange 3 and the air inlet pipe 4.

[0022] One end of the cylinder body 1 is welded with a flange 2, and the flange 2 and the air inlet pipe 4 are respectively located on both sides of the cylinder body 1, so as to facilitate welding between the cylinder body 1 and other components through the flange 2.

[0023] One end of the elastic sheet 9 is located inside the groove 7, and the side wall of the elastic sheet 9 is in an arc structure, so as to facilitate the elastic sheet 9 to slide on the inner side wall of the flanging 3 after being compressed and entering the inside of the groove 7.

[0024] The cross section of the sealing ring 8 is in an "L" shape, and the sealing ring 8 and the elastic sheet 9 are located inside the cylinder body 1, so as to avoid the sealing ring 8 increasing the sealing performance between the air inlet pipe 4 and the cylinder body 1 and preventing exhaust gas leakage.

[0025] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A new type of non-road post-processing side-inlet cylinder structure, characterized in that: include: A cylinder (1), the side wall of the cylinder (1) being fixedly connected to a flange (3), and an air inlet pipe (4) extending into the interior of the cylinder (1) and being welded to the flange (3); The side wall of the air intake pipe (4) is provided with a groove (7), the interior of the groove (7) is fitted with a sealing ring (8), and the sealing ring (8) contacts the inner side wall of the cylinder (1); a plurality of elastic sheets (9) are installed on the side wall of the air intake pipe (4), and the elastic sheets (9) contact the side wall of the sealing ring (8).

2. The novel non-road post-processing side-inlet cylinder structure according to claim 1 is characterized in that: The height of the flange (3) is 5 to 10 mm.

3. The novel non-road post-processing side-inlet cylinder structure according to claim 1 is characterized in that: The cross section of the flange (3) is trapezoidal, and a plurality of reinforcing rods (5) are installed on the side wall of the air intake pipe (4), and the reinforcing rods (5) are welded to the flange (3).

4. The novel non-road post-processing side-inlet cylinder structure according to claim 1 is characterized in that: A flange (2) is welded to one end of the cylinder (1), and the flange (2) and the air inlet pipe (4) are respectively located on both sides of the cylinder (1).

5. The novel non-road post-processing side-inlet cylinder structure according to claim 1 is characterized in that: One end of the elastic sheet (9) is located inside the groove (7), and the side wall of the elastic sheet (9) has an arc-shaped structure.

6. The novel non-road post-processing side-inlet cylinder structure according to claim 1 is characterized in that: The cross section of the sealing ring (8) is L-shaped, and the sealing ring (8) and the elastic sheet (9) are located inside the cylinder (1).

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