Conveniently weldable shell device

Abstract

A convenient welding mussel shell device belongs to the technical field of automobile exhaust mussel shell equipment, and is characterized in that: the device comprises a mussel shell body and an air outlet arranged at the front end of the mussel shell body, an air inlet is arranged at the rear end of the mussel shell body, an opening is arranged at the front edge of the right surface of the mussel shell body, an oxygen sensor hole is arranged at the middle of the right surface of the mussel shell body, welding side plates are arranged at the middle of the upper and lower surfaces of the mussel shell body, the mussel shell body is composed of two upper and lower half-mussel shell type shells, the mussel shell body is in an elliptical shape, welding deformation is small, the structural stability is high, the air tightness is good, the demand of high requirement exhaust system is met, the preparation method is simple, the operability is strong, the welding position is more firm, and the device is suitable for large-scale production.

Description

Technical Field

[0001] This utility model belongs to the technical field of clamshell equipment for automobile exhaust, specifically relating to a clamshell device that is easy to weld. Background Technology

[0002] Traditional exhaust flanges are often connected to the shell using bolts or welding. However, bolted connections are prone to loosening, while traditional welding methods are prone to problems such as welding deformation and poor airtightness. During long-term use, the welded joints are prone to leaks, and these leaks will become larger over time. Utility Model Content

[0003] The purpose of this invention is to solve the problems of welding deformation and poor airtightness in traditional welding methods, improve the reliability and stability of the connection, meet the requirements of high-demand exhaust systems, and provide a simple, easy-to-operate, and convenient method for workers to use. The technical solution is as follows:

[0004] A convenient clam shell device for welding, characterized in that: it includes a clam shell 1 and an air outlet 2 disposed at the front end of the clam shell 1, an air inlet 6 disposed at the rear end of the clam shell 1, a notch 3 disposed at the front edge of the right side surface of the clam shell 1, an oxygen sensor hole 4 disposed in the middle of the right side surface of the clam shell 1, welding side plates 5 disposed in the middle of the upper and lower surfaces of the clam shell 1, the clam shell 1 is composed of two upper and lower half-clam shell-shaped outer shells, the clam shell 1 is elliptical in shape, the outer end of the air outlet 2 is inserted into a flange 7, the air outlet 2 is welded into the through hole of the flange 7, and the outer edges of the notch 3 are connected to... There is an EGR pipe 9, the other end of which is welded to a flange 7. Several bolts 8 are inserted on the front surface of the flange 7. The shell 1 is made of 400 series stainless steel. The flange 7 is circular. The air inlet 6 is racetrack shaped. The diameter tolerance of the air inlet (6) is within ±0.5mm. The surface of the shell 1 is provided with a passivation layer. The upper and lower edges of the upper and lower half shell shells of the shell 1 are each connected with a welding plate 10. The front ends of the two welding plates 10 are at the same height. The welding plate 10 of the upper half shell shell at the rear end is higher than the welding plate 10 of the lower half shell shell.

[0005] The beneficial effects of this utility model are: small welding deformation, high structural stability, good airtightness, meeting the requirements of high-requirement exhaust systems, simple preparation method, strong operability, making the weld more solid, suitable for large-scale production, convenient for staff to operate and improve service life. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the connection structure between the clam shell 1 and the flange 7 of this utility model;

[0008] Figure 3 This is a schematic diagram of the shell structure 1 of this utility model. Detailed Implementation

[0009] Reference Figures 1-3 The aforementioned easy-to-weld clam shell device is characterized by: comprising a clam shell 1 and an air outlet 2 disposed at the front end of the clam shell 1, an air inlet 6 disposed at the rear end of the clam shell 1, a notch 3 disposed at the front edge of the right side surface of the clam shell 1, an oxygen sensor hole 4 disposed in the middle of the right side surface of the clam shell 1, welding side plates 5 disposed in the middle of the upper and lower surfaces of the clam shell 1, the clam shell 1 being composed of two upper and lower half-clam shell-shaped outer shells, the clam shell 1 being elliptical in shape, the outer end of the air outlet 2 being inserted into a flange 7, the air outlet 2 being welded into the through hole of the flange 7, and the outer edge of the notch 3 being connected to... An EGR pipe 9 is connected, and the other end of the EGR pipe 9 is welded to a flange 7. Several bolts 8 are inserted into the front surface of the flange 7. The shell 1 is made of 400 series stainless steel. The flange 7 is circular, and the air inlet 6 is racetrack shaped. The diameter tolerance of the air inlet (6) is within ±0.5mm. A passivation layer is provided on the surface of the shell 1. Welding plates 10 are connected to the upper and lower edges of the upper and lower half shell shells of the shell 1. The front ends of the two welding plates 10 are at the same height, and the welding plate 10 of the upper half shell shell at the rear end is higher than the welding plate 10 of the lower half shell shell.

[0010] In use, first align the two half-shell-shaped outer shells of the clam shell 1, and then weld the two welding plates 10 together. Next, insert the air outlet 2 into the flange 7 and weld them together. Then, make the left end of the EGR pipe 9 contact the notch 3 and the front end of the EGR pipe 9 contact the flange 7 and weld them together. Then, use bolts 8 to connect the flange 7 to the air outlet pipe. Finally, connect the air inlet 6 to the air pipe for use.

[0011] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A clam shell device that is easy to weld, characterized in that: It includes a clam shell (1) and an air outlet (2) at the front end of the clam shell (1). An air inlet (6) is provided at the rear end of the clam shell (1). A notch (3) is provided at the front edge of the right side surface of the clam shell (1). An oxygen sensor hole (4) is provided in the middle of the right side surface of the clam shell (1). A welded side plate (5) is provided in the middle of the upper and lower surfaces of the clam shell (1). The clam shell (1) is composed of two upper and lower half-clam shells. The clam shell (1) is elliptical in shape.

2. The clam shell device for easy welding according to claim 1, characterized in that: The outer end of the air outlet (2) is inserted into the flange (7), the air outlet (2) is welded into the through hole of the flange (7), the outer surface of the notch (3) is connected to the EGR pipe (9) around the edge, the other end of the EGR pipe (9) is welded to the flange (7), and several bolts (8) are inserted into the front surface of the flange (7).

3. The clam shell device for easy welding according to claim 1, characterized in that: The shell (1) is made of 400 series stainless steel.

4. The clam shell device for easy welding according to claim 2, characterized in that: The flange (7) is circular, and the air inlet (6) is runway shaped.

5. The clam shell device for easy welding according to claim 4, characterized in that: The diameter tolerance of the air inlet (6) is within ±0.5 mm.

6. The clam shell device for easy welding according to claim 3, characterized in that: The surface of the clam shell (1) is provided with a passivation layer.

7. The clam shell device for easy welding according to claim 1, characterized in that: The upper and lower halves of the clam shell (1) are each connected to a welding plate (10) at their upper and lower edges. The two welding plates (10) are at the same height at their front ends, and the welding plate (10) of the upper half of the clam shell is higher than the welding plate (10) of the lower half of the clam shell.

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