Automobile exhaust manifold with dust prevention and emission reduction functions

Abstract

The utility model relates to the technical field of exhaust manifolds, and discloses an automobile exhaust manifold with dustproof and emission reduction functions. Comprising an exhaust branch pipe and an exhaust main pipe, and further comprises the exhaust main pipe communicating with the exhaust branch pipe, a butt joint disc is fixedly connected to the surface of the other end of the exhaust main pipe, limiting mechanisms are hinged to the periphery of the surface of the butt joint disc, a fixing pipe is inserted into the butt joint disc, and an insertion disc is fixedly connected to the surface of the fixing pipe; when the exhaust manifold and the three-way catalytic converter are assembled, the fixing pipe is inserted into the butt joint disc, the inserting disc is fixed through the limiting mechanism, connection between the three-way catalytic converter and the exhaust manifold can be increased, and therefore automobile exhaust which is not treated by the three-way catalytic converter is prevented from being dissipated and exhausted from a connecting gap. The pollution to the environment is reduced, and dust can be prevented from entering the exhaust manifold from the gaps, so that the dust is prevented from entering the three-way catalyst to damage the three-way catalyst.

Description

Technical Field

[0001] This utility model relates to the field of exhaust manifold technology, specifically to an automotive exhaust manifold with dust prevention and emission reduction functions. Background Technology

[0002] The exhaust manifold is connected to the engine cylinder block, collecting the exhaust gas from each cylinder and directing it into the main exhaust pipe. It is a branching pipe system. Its main requirements are to minimize exhaust resistance and prevent interference between cylinders.

[0003] Existing exhaust manifolds can concentrate the exhaust gases from each cylinder and play a certain role in dust prevention and emission reduction. However, they generally do not pay attention to the sealing of the connection between the three-way catalytic converter and the exhaust manifold, which is used to purify the exhaust gases. This results in some exhaust gases being discharged from the connection gaps without treatment, which not only causes environmental pollution but also affects human health. Utility Model Content

[0004] The purpose of this invention is to provide an automotive exhaust manifold with dust prevention and emission reduction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust-proof and emission-reducing automotive exhaust manifold, comprising an exhaust branch pipe and an exhaust main pipe, and further comprising:

[0006] The exhaust manifold is connected to the exhaust branch pipe, and a docking plate is fixedly connected to the surface of the other end of the exhaust manifold. A limit mechanism is hinged around the surface of the docking plate.

[0007] A fixed tube is inserted into the docking plate. An insertion plate is fixedly connected to the surface of the fixed tube. Several limiting holes are opened on the right side of the insertion plate to cooperate with the limiting mechanism. A three-way catalytic converter is fixedly connected to the right side of the fixed tube.

[0008] Preferably, the limiting mechanism includes a folding plate, which is hinged to the docking plate, and a threaded rod is threadedly connected to the inside of the folding plate, which is threadedly connected to the inner wall of the limiting hole.

[0009] Preferably, a locking block is fixedly connected to the bottom of the folded plate, and a locking groove is provided around the surface of the docking plate. The locking block is slidably connected to the inner wall of the locking groove.

[0010] Preferably, the inner wall of the docking plate is provided with sliding grooves around its perimeter, and the sliding grooves are arranged in a ring shape. The surface of the fixing tube is provided with sliders around its perimeter, and the sliders are slidably connected to the inner wall of the sliding grooves.

[0011] Preferably, a fixing plate is fixedly connected to the surface of the threaded rod, and the size of the fixing plate is larger than the size of the hole connecting the folded plate and the threaded rod.

[0012] Preferably, a sealing gasket is provided on the surface of the inner wall of the docking plate, and the other side of the sealing gasket is in contact with one side of the insertion plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In assembling the exhaust manifold and the three-way catalytic converter, this invention uses a fixing pipe inserted into the docking plate and a limiting mechanism to fix the insertion plate. This increases the connection between the three-way catalytic converter and the exhaust manifold, preventing untreated exhaust gases from escaping through the connection gaps and reducing environmental pollution. It also prevents dust from entering the exhaust manifold through the gaps, thus avoiding damage to the three-way catalytic converter. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention, showing the separation of the exhaust manifold and the three-way catalytic converter;

[0017] Figure 3 This is a three-dimensional top view of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional, bottom-view structure of this utility model.

[0019] In the diagram: 1. Exhaust branch pipe; 2. Exhaust main pipe; 3. Connecting plate; 4. Three-way catalytic converter; 5. Insertion plate; 6. Limiting mechanism; 61. Bending plate; 62. Threaded rod; 7. Locking block; 8. Locking groove; 9. Sealing gasket; 10. Sliding groove; 11. Fixing plate; 12. Limiting hole; 13. Fixing pipe; 14. Sliding block. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4As shown, a dustproof and emission-reducing automotive exhaust manifold includes an exhaust branch pipe 1 and an exhaust main pipe 2. The exhaust branch pipe 1 is connected to the exhaust main pipe 2. A mating plate 3 is fixedly connected to the surface of the other end of the exhaust main pipe 2. A sealing gasket 9 is provided on the surface of the inner wall of the mating plate 3, and the other side of the sealing gasket 9 is in contact with one side of the insertion plate 5. Through the setting of the sealing gasket 9, when the fixed pipe 13 is inserted into the mating plate 3, the sealing gasket 9 is squeezed between the insertion plate 5 and the mating plate 3 to form a sealing surface, thereby preventing exhaust gas from leaking from the connection and preventing external dust from entering the exhaust system, thus achieving a dustproof effect. Sliding grooves 10 are provided around the inner wall of the mating plate 3, and the sliding grooves 10 are annular. The fixed tube 13 is provided with sliders 14 on all four sides of its surface. The sliders 14 are slidably connected to the inner wall of the groove 10. By setting the groove 10 and sliders 14, after the sliders 14 are inserted into the groove 10, the fixed tube 13 is rotated. This can limit the movement of the fixed tube 13 and prevent the fixed tube 13 from falling off the inner wall of the docking plate 3. The docking plate 3 is hinged with limiting mechanisms 6 on all four sides of its surface. The fixed tube 13 is inserted into the inside of the docking plate 3. The surface of the fixed tube 13 is fixedly connected with an insertion plate 5. The right side of the insertion plate 5 is provided with several limiting holes 12 that cooperate with the limiting mechanisms 6. The right side of the fixed tube 13 is fixedly connected with a three-way catalytic converter 4.

[0022] The limiting mechanism 6 includes a folded plate 61, which is hinged to the mating plate 3. A locking block 7 is fixedly connected to the bottom of the folded plate 61. Slots 8 are formed around the surface of the mating plate 3. The locking block 7 slides against the inner wall of the slot 8. By setting the locking block 7 and the slot 8, the folded plate 61 is flipped so that the locking block 7 at the bottom of the folded plate 61 is inserted into the slot 8 on the surface of the mating plate 3. This restricts the range of motion of the folded plate 61, thereby enhancing the stability of the limiting mechanism 6. A threaded rod 62 is threadedly connected inside the folded plate 61. A fixing piece 11 is fixedly connected to the surface of the threaded rod 62. The size of the fixing piece 11 is larger than that of the folded plate 61. The size of the hole connecting to the threaded rod 62 is determined by the setting of the fixing plate 11. When the threaded rod 62 is rotated into the limiting hole 12, the fixing plate 11 can press the folded plate 61, thus making the folded plate 61 more firmly fixed to the insertion plate 5. The threaded rod 62 is threadedly connected to the inner wall of the limiting hole 12. With the setting of the limiting mechanism 6, when the insertion plate 5 is inserted into the mating plate 3 for installation, the folded plate 61 can be flipped and tightly fitted to the insertion plate 5. Then, the threaded rod 62 is inserted into the limiting hole 12 at its rear end and rotated to limit the position of the folded plate 61, thereby fixing the insertion plate 5.

[0023] Working principle: When installing the exhaust manifold and the three-way catalytic converter 4, firstly, the exhaust branch pipe 1 and the exhaust main pipe 2 are fixed to the exhaust interface of the engine block with bolts, ensuring that the exhaust branch pipe 1 is aligned with the exhaust ports of each cylinder. Then, the folding plate 61 is deflected so that it is rotated to the outside of the mating plate 3. Next, the sealing gasket 9 is installed on the inner surface of the mating plate 3. Then, the slider 14 is aligned with the slide groove 10. Then, the fixing tube 13 is inserted into the mating plate 3, and the fixing tube 13 is rotated so that the slider 14 moves into the interior of the slide groove 10 until the insertion plate 5 and the sealing gasket 9 on the surface of the mating plate 3 are tightly fitted, so that the sealing gasket 9 provides a further seal at the connection. This achieves a sealing effect at the connection between the three-way catalytic converter 4 and the exhaust manifold 2, thus preventing some exhaust gas from being discharged without treatment. Next, the folding plate 61 is flipped over, and the threaded rod 62 is aligned with the limiting hole 12 on the rear side of the insertion plate 5. Then, the threaded rod 62 is rotated, causing the fixing piece 11 on the surface of the threaded rod 62 to press against the folding plate 61, so that the folding plate 61 can press and fix the insertion plate 5. In this way, the exhaust manifold 2 and the three-way catalytic converter 4 can be tightly connected, thereby preventing some untreated exhaust gas from escaping from the gap at the connection and causing environmental pollution. At the same time, it can also prevent dust from entering the exhaust manifold from the gap at the connection.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle exhaust manifold with dust prevention and emission reduction functions, comprising an exhaust branch pipe (1) and an exhaust main pipe (2), characterized in that, Also includes: The exhaust main pipe (2) is connected to the exhaust branch pipe (1). A docking plate (3) is fixedly connected to the surface of the other end of the exhaust main pipe (2). A limit mechanism (6) is hinged around the surface of the docking plate (3). A fixed pipe (13) is inserted into the inside of the docking plate (3). An insertion disc (5) is fixedly connected to the surface of the fixed tube (13). The right side of the insertion disc (5) has several limiting holes (12) that cooperate with the limiting mechanism (6). A three-way catalytic converter (4) is fixedly connected to the right side of the fixed tube (13).

2. The automotive exhaust manifold with dust prevention and emission reduction according to claim 1, characterized in that: The limiting mechanism (6) includes a folding plate (61), which is hinged to the docking plate (3). The folding plate (61) has a threaded rod (62) internally connected to the threaded rod, which is threaded to the inner wall of the limiting hole (12).

3. The automotive exhaust manifold with dust prevention and emission reduction according to claim 2, characterized in that: The bottom of the folded plate (61) is fixedly connected to a locking block (7), and the four sides of the surface of the docking plate (3) are provided with locking grooves (8), and the locking block (7) is slidably connected to the inner wall of the locking groove (8).

4. A dust-proof and emission-reducing automotive exhaust manifold according to claim 1, characterized in that: The inner wall of the docking plate (3) is provided with a sliding groove (10) around its perimeter, and the sliding groove (10) is arranged in a ring shape. The surface of the fixing tube (13) is provided with a slider (14) around its perimeter, and the slider (14) is slidably connected to the inner wall of the sliding groove (10).

5. A dust-proof and emission-reducing automotive exhaust manifold according to claim 2, characterized in that: A fixing plate (11) is fixedly connected to the surface of the threaded rod (62), and the size of the fixing plate (11) is larger than the size of the connection hole between the folded plate (61) and the threaded rod (62).

6. A dust-proof and emission-reducing automotive exhaust manifold according to claim 1, characterized in that: The inner wall of the docking plate (3) is provided with a sealing gasket (9), and the other side of the sealing gasket (9) is in contact with one side of the insertion plate (5).

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