Exhaust manifold with reinforcing structure

Abstract

The utility model discloses an exhaust manifold with a reinforcing structure, which belongs to the technical field of exhaust manifolds and comprises an exhaust main pipe, an exhaust branch pipe arranged at the bottom end of the exhaust main pipe, a support plate fixedly connected to the bottom end of the exhaust branch pipe, a reinforcing plate fixedly connected to the top end of the support plate, and a reinforcing plate fixedly connected to the top end of the reinforcing plate and the outer surface of the exhaust main pipe. The reinforcing plate is arranged in an L shape, the bottom end of the supporting plate is fixedly connected with a fixing flange, the upper surface of the supporting plate is provided with a threaded hole, an inner cavity of the threaded hole is in threaded connection with a high-strength screw, one end of the high-strength screw is fixedly connected with a fixing block, and the other end of the high-strength screw is in threaded connection with three sets of nuts; and the outer surface of the high-strength screw rod is sleeved with a spring, so that the joint of the exhaust manifold and the engine is reinforced, the stability of the exhaust manifold during working is improved, damage to the exhaust main pipe caused by shaking is reduced, and the service life of the exhaust manifold is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust manifolds, in particular to an exhaust manifold with a reinforcement structure. Background Art

[0002] The exhaust manifold is connected to the engine cylinder block and collects the exhaust from each cylinder into the exhaust manifold with divergent pipes. The main requirement for it is to minimize the exhaust resistance and avoid interference between cylinders.

[0003] The existing exhaust manifold is usually bolted to the engine by bolts and nuts. The engine vibrates continuously when it is working, causing the connection between the exhaust manifold and the engine to shake, which can easily loosen the nut and reduce the sealing of the connection. At the same time, the shaking of the exhaust manifold can easily cause damage to the exhaust main pipe at the other end, resulting in a decrease in the service life of the exhaust manifold.

[0004] According to the announcement number: CN207348947U, an automobile exhaust manifold is provided, including an exhaust main pipe, an exhaust manifold, a first exhaust manifold, a second exhaust manifold, a third exhaust manifold and a catalytic converter, an oxygen sensor is provided at the left end of the exhaust main pipe, and the exhaust manifold, the first exhaust manifold, the second exhaust manifold and the third exhaust manifold are respectively connected to the bottom end of the exhaust main pipe, and the bottom ends of the exhaust manifold, the first exhaust manifold, the second exhaust manifold and the third exhaust manifold are installed with four-hole flanges, and gaskets are provided at the joints of the exhaust manifold, the first exhaust manifold, the second exhaust manifold and the third exhaust manifold with the four-hole flange, and flange positioning blocks are provided on the four-hole flanges. The exhaust manifold, the first exhaust manifold, the second exhaust manifold and the third exhaust manifold are welded by sheet metal parts, replacing the method of welding multiple branch pipes as an assembly, with fewer welds, high airtightness and simpler overall processing procedures.

[0005] According to the exhaust manifold introduced above, the engine vibrates continuously when working, causing the connection between the exhaust manifold and the engine to shake, which can easily loosen the nut and reduce the sealing of the connection. At the same time, the shaking of the exhaust manifold can easily cause damage to the exhaust main pipe at the other end, resulting in a decrease in the service life of the exhaust manifold. Therefore, we need to propose an exhaust manifold with a reinforced structure. Utility Model Content

[0006] The purpose of the utility model is to provide an exhaust manifold with a reinforced structure, in which the end of the exhaust main pipe is supported by a reinforcing plate, and through the cooperation of a high-strength screw, three sets of nuts and a spring, one end of the spring supports the support plate, and the other end of the spring is squeezed with the nut to prevent the nut from loosening due to engine vibration, thereby reinforcing the connection between the exhaust manifold and the engine, improving the stability of the exhaust manifold during operation, reducing the damage to the exhaust main pipe caused by vibration, and extending the service life of the exhaust manifold, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust manifold with a reinforced structure, comprising an exhaust main pipe, an exhaust branch pipe is arranged at the bottom end of the exhaust main pipe, the bottom end of the exhaust branch pipe is fixedly connected to a support plate, the top end of the support plate is fixedly connected to a reinforcing plate, the top end of the reinforcing plate is fixedly connected to the outer surface of the exhaust main pipe, the reinforcing plate is L-shaped, the bottom end of the support plate is fixedly connected to a fixing flange, the upper surface of the support plate is provided with a threaded hole, the inner cavity of the threaded hole is threadedly connected to a high-strength screw, one end of the high-strength screw is fixedly connected to a fixing block, the other end of the high-strength screw is threadedly connected to a nut, three groups of nuts are arranged, the outer surface of the high-strength screw is sleeved with a spring, and the spring is located between the support plate and the nut.

[0008] Preferably, four groups of the exhaust branch pipes are provided, and reinforcing ribs are provided between every two groups of the exhaust branch pipes, and the reinforcing ribs are provided in a U-shape.

[0009] Preferably, the threaded holes are provided in a plurality of groups, and the positions between each three groups of threaded holes are arranged in an equilateral triangle shape, and the three groups of threaded holes are distributed corresponding to the exhaust branch pipes.

[0010] Preferably, a reinforcing rod is provided in the inner cavity of the reinforcing plate, one end of the reinforcing rod is fixedly connected to the top end of the reinforcing plate, and the other end of the reinforcing rod is fixedly connected to the bottom end of the reinforcing plate.

[0011] Preferably, a reinforcing block is fixedly connected to the bottom end of the exhaust branch pipe, and the other end of the reinforcing block is fixedly connected to the surface of the support plate, and the reinforcing block is triangular in shape.

[0012] Preferably, a sealing groove is provided on the surface of the fixing flange, and a sealing plate is embedded in the inner cavity of the sealing groove.

[0013] Preferably, the reinforcing rods are arranged in a plurality of groups, and the plurality of groups of reinforcing rods are distributed on the surface of the reinforcing plate at equal distances, and the reinforcing rods are arranged in an inclined state.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides an exhaust manifold with a reinforced structure, which supports the end of the exhaust main pipe through a reinforcing plate, and through the cooperation of a high-strength screw, three sets of nuts and a spring, one end of the spring supports the supporting plate, and the other end of the spring is squeezed with the nut to prevent the nut from loosening due to engine vibration, thereby reinforcing the connection between the exhaust manifold and the engine, improving the stability of the exhaust manifold during operation, reducing the damage to the exhaust main pipe caused by vibration, and extending the service life of the exhaust manifold.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model from a top view;

[0020] Figure 4 It is a structural schematic diagram of the decomposition structure of the utility model.

[0021] In the figure: 1. exhaust main pipe; 2. exhaust branch pipe; 3. support plate; 4. reinforcement plate; 5. fixing flange; 6. threaded hole; 7. high-strength screw; 8. fixing block; 9. nut; 10. spring; 11. reinforcement rib; 12. reinforcement rod; 13. reinforcement block; 14. sealing groove; 15. sealing plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: an exhaust manifold with a reinforced structure, comprising an exhaust main pipe 1, an exhaust branch pipe 2 is arranged at the bottom end of the exhaust main pipe 1, a support plate 3 is fixedly connected to the bottom end of the exhaust branch pipe 2, a reinforcing plate 4 is fixedly connected to the top end of the support plate 3, the top end of the reinforcing plate 4 is fixedly connected to the outer surface of the exhaust main pipe 1, the reinforcing plate 4 is L-shaped, a fixing flange 5 is fixedly connected to the bottom end of the support plate 3, a threaded hole 6 is provided on the upper surface of the support plate 3, a high-strength screw 7 is threadedly connected to the inner cavity of the threaded hole 6, a fixing block 8 is fixedly connected to one end of the high-strength screw 7, a nut 9 is threadedly connected to the other end of the high-strength screw 7, three groups of nuts 9 are arranged, a spring 10 is sleeved on the outer surface of the high-strength screw 7, and the spring 10 is located between the support plate 3 and the nut 9;

[0024] By setting the shape of the reinforcing plate 4, the bottom end of the exhaust manifold 1 is supported to enhance the stability of the exhaust manifold 1; the fixing flange 5 is connected to the engine through the cooperation of the high-strength screw 7 and the three sets of nuts 9; when the engine is working, the exhaust manifold vibrates, one end of the spring 10 supports the support plate 3, and the other end of the spring 10 squeezes the nut 9; the two sets of nuts 9 on the outside squeeze the inner nut 9 to prevent the nut 9 from loosening due to the vibration of the engine, thereby reinforcing the connection between the exhaust manifold and the engine, improving the stability of the exhaust manifold during operation, reducing the damage to the exhaust main pipe caused by the vibration, and extending the service life of the exhaust manifold.

[0025] Four groups of exhaust branch pipes 2 are provided, and reinforcing ribs 11 are provided between every two groups of exhaust branch pipes 2. The reinforcing ribs 11 are provided in a U-shape. Through the provision of the reinforcing ribs 11, the exhaust branch pipes 2 are supported, the stability of the exhaust branch pipes 2 is improved, and the exhaust branch pipes 2 are reinforced.

[0026] There are several groups of threaded holes 6, and the positions between each three groups of threaded holes 6 are arranged in an equilateral triangle shape. The three groups of threaded holes 6 are distributed corresponding to the exhaust branch pipes 2. The arrangement of the threaded holes 6 improves the stability of the connection between the exhaust manifold and the engine. The position setting between the threaded holes 6 makes the equilateral triangle stable, thereby preventing the exhaust manifold from shifting during shaking, and reinforcing the position of the exhaust manifold.

[0027] The inner cavity of the reinforcing plate 4 is provided with a reinforcing rod 12, one end of the reinforcing rod 12 is fixedly connected to the top end of the reinforcing plate 4, and the other end of the reinforcing rod 12 is fixedly connected to the bottom end of the reinforcing plate 4. Through the setting of the reinforcing rod 12, the two ends of the reinforcing plate 4 are supported, thereby improving the stability of the reinforcing plate 4.

[0028] A reinforcing block 13 is fixedly connected to the bottom end of the exhaust branch pipe 2, and the other end of the reinforcing block 13 is fixedly connected to the surface of the support plate 3. The reinforcing block 13 is triangular in shape. Through the setting of the reinforcing block 13, the connection between the exhaust branch pipe 2 and the support plate 3 is supported to avoid long-term shaking that causes the connection between the exhaust branch pipe 2 and the support plate 3 to break.

[0029] A sealing groove 14 is provided on the surface of the fixed flange 5, and a sealing plate 15 is embedded in the inner cavity of the sealing groove 14. The cooperation between the sealing plate 15 and the sealing groove 14 improves the sealing performance of the connection between the fixed flange 5 and the engine, thereby improving the sealing effect of the exhaust manifold.

[0030] Several groups of reinforcing rods 12 are arranged, and the groups of reinforcing rods 12 are evenly distributed on the surface of the reinforcing plate. The reinforcing rods 12 are arranged in an inclined state. Through the arrangement of the reinforcing rods 12, the supporting effect of the reinforcing plate 4 is improved, and at the same time, the deformation of the reinforcing plate 4 caused by long-term use is avoided, thereby improving the service life of the reinforcing plate 4.

[0031] During specific use: the fixing flange 5 is connected to the engine through the cooperation of the high-strength screw 7 and the three sets of nuts 9. When the engine is working, the exhaust manifold vibrates, one end of the spring 10 supports the support plate 3, and the other end of the spring 10 squeezes the nut 9. The two external sets of nuts 9 squeeze the internal nuts 9 to prevent the nuts 9 from loosening due to the vibration of the engine. When the shaking force on the exhaust manifold is transmitted to the exhaust main pipe 1, it is supported by the support plate 3 at the bottom, and the end of the exhaust main pipe 1 is reinforced, thereby reinforcing the connection between the exhaust manifold and the engine, improving the stability of the exhaust manifold during operation, reducing the damage to the exhaust main pipe caused by the vibration, and extending the service life of the exhaust manifold.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust manifold with a reinforced structure, comprising an exhaust manifold (1), characterized in that: An exhaust branch pipe (2) is provided at the bottom end of the exhaust main pipe (1), and a support plate (3) is fixedly connected to the bottom end of the exhaust branch pipe (2). A reinforcing plate (4) is fixedly connected to the top end of the support plate (3), and the top end of the reinforcing plate (4) is fixedly connected to the outer surface of the exhaust main pipe (1). The reinforcing plate (4) is L-shaped. A fixing flange (5) is fixedly connected to the bottom end of the support plate (3). A threaded hole (6) is provided on the upper surface of the support plate (3). A high-strength screw (7) is threadedly connected to the inner cavity of the threaded hole (6). One end of the high-strength screw (7) is fixedly connected to a fixing block (8), and the other end of the high-strength screw (7) is threadedly connected to a nut (9). Three groups of the nut (9) are provided. A spring (10) is sleeved on the outer surface of the high-strength screw (7), and the spring (10) is located between the support plate (3) and the nut (9).

2. The exhaust manifold with a reinforced structure according to claim 1, characterized in that: Four groups of exhaust branch pipes (2) are provided, and reinforcing ribs (11) are provided between every two groups of exhaust branch pipes (2), and the reinforcing ribs (11) are arranged in a U-shape.

3. The exhaust manifold with a reinforced structure according to claim 1, characterized in that: The threaded holes (6) are provided in a plurality of groups, and the positions between each three groups of threaded holes (6) are arranged in an equilateral triangle shape, and the three groups of threaded holes (6) are distributed corresponding to the exhaust branch pipes (2).

4. The exhaust manifold with a reinforced structure according to claim 1, characterized in that: The inner cavity of the reinforcing plate (4) is provided with a reinforcing rod (12), one end of the reinforcing rod (12) is fixedly connected to the top end of the reinforcing plate (4), and the other end of the reinforcing rod (12) is fixedly connected to the bottom end of the reinforcing plate (4).

5. The exhaust manifold with a reinforced structure according to claim 1, characterized in that: The bottom end of the exhaust branch pipe (2) is fixedly connected to a reinforcement block (13), the other end of the reinforcement block (13) is fixedly connected to the surface of the support plate (3), and the reinforcement block (13) is triangular in shape.

6. The exhaust manifold with a reinforced structure according to claim 1, characterized in that: A sealing groove (14) is provided on the surface of the fixing flange (5), and a sealing plate (15) is embedded in the inner cavity of the sealing groove (14).

7. The exhaust manifold with a reinforced structure according to claim 4, characterized in that: The reinforcing rods (12) are arranged in a plurality of groups, and the plurality of groups of reinforcing rods (12) are distributed at equal distances on the surface of the reinforcing plate, and the reinforcing rods (12) are arranged in an inclined shape.

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