Automobile exhaust manifold

Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to an automobile exhaust manifold which comprises a catalytic converter, a connecting flange and an exhaust assembly, and the exhaust assembly comprises a main exhaust pipe, a transverse pipe, an air inlet flange, two butt joint structures and a plurality of exhaust structures. When the exhaust manifold is damaged, the two locking pieces on the assembling heads at the two ends of the damaged exhaust manifold are operated to loosen the corresponding butt joint pieces on the transverse pipe and the air inlet flange, the damaged exhaust manifold is disassembled, the two ends of the exhaust manifold with complete functions are connected with the butt joint pipes on the transverse pipe and the air inlet flange in an inserted mode, and the locking pieces on the two sides of the assembling heads are operated to abut against the butt joint pieces. Therefore, the problem that according to an existing automobile exhaust manifold, due to the fact that a plurality of exhaust manifolds are assembled through welding, when a single exhaust manifold is damaged, the whole structure needs to be replaced, and the maintenance cost is high is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to an automobile exhaust manifold. Background Art

[0002] The exhaust manifold is connected to the engine cylinder block, and collects the exhaust from each cylinder and guides it into the exhaust manifold. It has diverging pipes to reduce exhaust resistance and avoid mutual interference between cylinders. However, during the assembly process of the existing exhaust manifold, eddy currents will occur in the manifold at the high weld scar.

[0003] The prior art (CN213598054U) discloses an automobile exhaust manifold, comprising an intake flange, a stepped hole being provided on the intake flange, a first exhaust manifold, a second exhaust manifold, a third exhaust manifold and a fourth exhaust manifold being inserted into the inner ring of the corresponding stepped hole, a catalyst being connected to one end of the main exhaust pipe, and a connecting flange being installed at the other end of the catalyst. The exhaust manifold and the intake flange are welded by utilizing a gap formed by the outer ring having a larger diameter than the inner ring, thereby effectively preventing the weld scar from protruding above the inner wall of the exhaust manifold and causing serious eddy currents.

[0004] However, in the above method, since the multiple exhaust manifolds are assembled by welding, when a single exhaust manifold is damaged, the entire structure needs to be replaced, resulting in high maintenance costs. Utility Model Content

[0005] The purpose of the utility model is to provide an automobile exhaust manifold, aiming to solve the problem of high maintenance cost in existing automobile exhaust manifolds, because multiple exhaust manifolds are assembled by welding, so when a single exhaust manifold is damaged, the entire structure needs to be replaced.

[0006] To achieve the above-mentioned purpose, the utility model provides an automobile exhaust manifold, comprising a catalyst, a connecting flange and an exhaust assembly, wherein the connecting flange is arranged on one side of the catalyst.

[0007] The exhaust assembly includes a main exhaust pipe, a cross pipe, an intake flange, two docking structures and a plurality of exhaust structures;

[0008] The main exhaust pipe is connected to the catalyst and is located on one side of the catalyst; the cross pipe is connected to the main exhaust pipe and is located on one side of the main exhaust pipe; the intake flange is located on one side of the cross pipe; the two docking structures are respectively arranged on one side of the cross pipe and the intake flange; the docking structure includes multiple docking pipes and multiple docking parts, and the multiple docking pipes are respectively connected to the cross pipe and are respectively located on one side of the cross pipe; the multiple docking parts are respectively arranged on one side of the multiple docking pipes; multiple exhaust structures are respectively located between the cross pipe and the intake flange; the exhaust structure includes an exhaust manifold, two assembly heads, two positioning parts, two locking parts and two sealings, and the exhaust manifold is located between the cross pipe and the intake flange; the two assembly heads are respectively connected to the exhaust manifold and are respectively located on both sides of the exhaust manifold; the two positioning parts are respectively arranged on one side of the two assembly heads; the two locking parts are respectively arranged on one side of the two assembly heads; the two sealings are respectively arranged on both sides of the exhaust manifold.

[0009] Among them, the docking part includes a docking seat and two positioning cylinders, the docking seat is fixedly connected to the docking tube and is located on one side of the docking tube; the docking seat has two locking grooves, and the two locking grooves are respectively located on both sides of the docking seat; the two positioning cylinders are respectively fixedly connected to the docking seat and are located on both sides of the docking seat.

[0010] Wherein, the positioning member includes a connecting portion and a positioning rod, the connecting portion is fixedly connected to the assembly head and is located on one side of the assembly head; the positioning rod is fixedly connected to the connecting portion and is located on one side of the connecting portion.

[0011] Wherein, the locking member includes a locking screw and a latch, the locking screw is threadedly connected to the assembly head and is located on one side of the assembly head; the latch is fixedly connected to the locking screw and is located on one side of the locking screw.

[0012] Wherein, the sealing member includes an expansion layer and a sealing gasket, the expansion layer is fixedly connected to the exhaust manifold and located inside the exhaust manifold; the sealing gasket is fixedly connected to the expansion layer and located on one side of the expansion layer.

[0013] The utility model provides an automobile exhaust manifold. When an integral automobile exhaust manifold is used, when one of the exhaust manifolds is damaged, the two locking pieces on the assembly head at both ends of the damaged exhaust manifold are respectively operated to loosen the corresponding docking pieces on the cross pipe and the intake flange, and then the damaged exhaust manifold is removed. Then, the two ends of the exhaust manifold with good functions are plugged into the docking pipes on the cross pipe and the intake flange, the plug-in tightness is increased by the sealing piece, the positioning piece is inserted into the docking piece, and then the locking pieces on both sides of the assembly head are operated to contact the docking piece, thereby completing the replacement of the exhaust manifold, thereby solving the problem of the existing automobile exhaust manifold that, since multiple exhaust manifolds are assembled by welding, the entire structure needs to be replaced when a single exhaust manifold is damaged, resulting in high maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is an overall front view of the utility model.

[0017] Figure 3 It is a sectional view of the entirety of the present invention.

[0018] Figure 4 yes Figure 3 A partial enlarged view of point A.

[0019] 101-catalyst, 102-connecting flange, 103-main exhaust pipe, 104-cross pipe, 105-intake flange, 106-docking structure, 107-exhaust structure, 108-docking pipe, 109-docking piece, 110-exhaust manifold, 111-assembly head, 112-positioning piece, 113-locking piece, 114-sealing piece, 115-docking seat, 116-positioning cylinder, 117-locking groove, 118-connecting part, 119-positioning rod, 120-locking screw, 121-latch pin, 122-expansion layer, 123-sealing gasket. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] See also Figure 1-Figure 4,in, Figure 1 This is a schematic diagram of the overall structure of the utility model. Figure 2 It is the overall front view of the utility model. Figure 3 It is a cross-sectional view of the entire utility model. Figure 4 yes Figure 3 A partial enlarged view of point A.

[0022] The utility model discloses an automobile exhaust manifold, comprising a catalyst 101, a connecting flange 102 and an exhaust assembly, wherein the exhaust assembly comprises a main exhaust pipe 103, a cross pipe 104, an intake flange 105, two docking structures 106 and a plurality of exhaust structures 107, wherein the docking structure 106 comprises a plurality of docking pipes 108 and a plurality of docking members 109, wherein the exhaust structure 107 comprises an exhaust manifold 110, two assembly heads 111, two positioning members 112, two locking members 113 and two sealing members 114, wherein the docking member 109 comprises a docking member ... The docking seat 115 and two positioning cylinders 116, the docking seat 115 has two locking grooves 117, the positioning member 112 includes a connecting portion 118 and a positioning rod 119, the locking member 113 includes a locking screw 120 and a latch 121, and the sealing member 114 includes an expansion layer 122 and a sealing gasket 123. The above-mentioned solution solves the problem of the existing automobile exhaust manifold. Since multiple exhaust manifolds 110 are assembled by welding, when a single exhaust manifold 110 is damaged, the entire structure needs to be replaced, resulting in a high maintenance cost.

[0023] In this specific embodiment, the catalyst 101 is used to assemble the exhaust assembly and cooperate with the connecting flange 102 to connect to the automobile exhaust pipe. The usage and specific structure of the catalyst 101 and the connecting flange 102 are referenced to the patent document with publication number CN213598054U, and will not be described in detail here.

[0024] The main exhaust pipe 103 is connected to the catalyst 101 and is located on one side of the catalyst 101; the cross pipe 104 is connected to the main exhaust pipe 103 and is located on one side of the main exhaust pipe 103; the intake flange 105 is located on one side of the cross pipe 104; two docking structures 106 are respectively provided on one side of the cross pipe 104 and the intake flange 105; a plurality of docking pipes 108 are respectively connected to the cross pipe 104 and are respectively located on one side of the cross pipe 104; a plurality of docking members 109 are respectively provided on Multiple said butt joints 108 on one side; multiple exhaust structures 107 are respectively located between the cross pipe 104 and the intake flange 105; the exhaust manifold 110 is located between the cross pipe 104 and the intake flange 105; two said assembly heads 111 are respectively connected to the exhaust manifold 110 and are respectively located on both sides of the exhaust manifold 110; two said positioning members 112 are respectively provided on one side of the two said assembly heads 111; two said locking members 113 are respectively provided on one side of the two said assembly heads 111; two said The sealing members 114 are respectively provided on both sides of the exhaust manifold 110. When the integral automobile exhaust manifold is used, when one of the exhaust manifolds 110 is damaged, the two locking members 113 on the assembly heads 111 at both ends of the damaged exhaust manifold 110 are respectively operated to loosen the corresponding docking members 109 on the cross pipe 104 and the intake flange 105. Then, the damaged exhaust manifold 110 is removed, and then the two ends of the exhaust manifold 110 that is in good condition are connected to the cross pipe 104 and the intake flange 105. The butt joint 108 is plugged in, and the sealing 114 is used to increase the tightness of the plug-in. The positioning member 112 is inserted into the butt joint 109, and then the locking members 113 on both sides of the assembly head 111 are operated to resist the butt joint 109, thereby completing the replacement of the exhaust manifold 110, thereby solving the problem of the existing automobile exhaust manifold that since multiple exhaust manifolds 110 are assembled by welding, when a single exhaust manifold 110 is damaged, the entire structure needs to be replaced, resulting in high maintenance costs.

[0025] Secondly, the docking seat 115 is fixedly connected to the docking tube 108 and is located on one side of the docking tube 108; the two locking grooves 117 are respectively located on both sides of the docking seat 115; the two positioning cylinders 116 are respectively fixedly connected to the docking seat 115 and are located on both sides of the docking seat 115. The docking seat 115 is used to be assembled with the assembly head 111, and the two locking grooves 117 are used to cooperate with the fixation of the two locking members 113. The positioning cylinder 116 is used to support the plug-in of the positioning member 112, so as to facilitate positioning and alignment when the assembly head 111 and the docking seat 115 are assembled.

[0026] Again, the connecting portion 118 is fixedly connected to the assembly head 111 and is located on one side of the assembly head 111; the positioning rod 119 is fixedly connected to the connecting portion 118 and is located on one side of the connecting portion 118. The connecting portion 118 is used to support the assembly of the positioning rod 119, and the positioning rod 119 is used to cooperate with the positioning tube 116 to facilitate positioning and alignment of the assembly head 111 and the docking seat 115 during assembly.

[0027] In addition, the locking screw 120 is threadedly connected to the assembly head 111 and is located on one side of the assembly head 111; the pin 121 is fixedly connected to the locking screw 120 and is located on one side of the locking screw 120. When the assembly head 111 is docked with the docking seat 115, the locking screw 120 is twisted to drive the pin 121 to be inserted into the locking groove 117 corresponding to the docking seat 115 to complete the fixation of the exhaust manifold 110.

[0028] Furthermore, the expansion layer 122 is fixedly connected to the exhaust manifold 110 and is located inside the exhaust manifold 110; the sealing gasket 123 is fixedly connected to the expansion layer 122 and is located on one side of the expansion layer 122. The expansion layer 122 is used to provide elastic tension so that when the exhaust manifold 110 and the docking tube 108 are plugged in, the sealing gasket 123 can fit tightly against the docking tube 108, thereby increasing the sealing performance of the exhaust manifold 110.

[0029] When using the utility model, when using the integral automobile exhaust manifold, when one of the exhaust manifolds 110 is damaged, respectively operate the two locking pieces 113 on the assembly head 111 at both ends of the damaged exhaust manifold 110, twist the locking screw 120 so that the latch 121 loosens the corresponding docking seat 115 on the cross pipe 104 and the intake flange 105, then remove the damaged exhaust manifold 110, and then connect the two ends of the exhaust manifold 110 with the cross pipe 104 and the intake flange 105 to the docking pipe 108, and connect the positioning rod 119 with the positioning cylinder 11 6 is used to position the connection between the assembly head 111 and the docking seat 115, and the sealing gasket 123 is used to increase the plug-in tightness. Then, the locking members 113 on both sides of the assembly head 111 are operated, and the locking screw 120 is twisted to drive the pin 121 to be inserted into the locking groove 117 corresponding to the docking seat 115 to complete the fixation of the exhaust manifold 110, and then the exhaust manifold 110 is replaced, thereby solving the problem of the existing automobile exhaust manifold. Since multiple exhaust manifolds 110 are assembled by welding, when a single exhaust manifold 110 is damaged, the entire structure needs to be replaced, resulting in high maintenance costs.

[0030] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. An automobile exhaust manifold, comprising a catalyst and a connecting flange, wherein the connecting flange is arranged on one side of the catalyst; characterized in that: Also includes exhaust components, The exhaust assembly includes a main exhaust pipe, a cross pipe, an intake flange, two docking structures and a plurality of exhaust structures; The main exhaust pipe is connected to the catalyst and is located on one side of the catalyst; the cross pipe is connected to the main exhaust pipe and is located on one side of the main exhaust pipe; the intake flange is located on one side of the cross pipe; the two docking structures are respectively arranged on one side of the cross pipe and the intake flange; the docking structure includes multiple docking pipes and multiple docking parts, and the multiple docking pipes are respectively connected to the cross pipe and are respectively located on one side of the cross pipe; the multiple docking parts are respectively arranged on one side of the multiple docking pipes; multiple exhaust structures are respectively located between the cross pipe and the intake flange; the exhaust structure includes an exhaust manifold, two assembly heads, two positioning parts, two locking parts and two sealings, and the exhaust manifold is located between the cross pipe and the intake flange; the two assembly heads are respectively connected to the exhaust manifold and are respectively located on both sides of the exhaust manifold; the two positioning parts are respectively arranged on one side of the two assembly heads; the two locking parts are respectively arranged on one side of the two assembly heads; the two sealings are respectively arranged on both sides of the exhaust manifold.

2. An automobile exhaust manifold according to claim 1, characterized in that: The docking piece includes a docking seat and two positioning cylinders. The docking seat is fixedly connected to the docking tube and is located on one side of the docking tube; the docking seat has two locking grooves, and the two locking grooves are respectively located on both sides of the docking seat; the two positioning cylinders are respectively fixedly connected to the docking seat and are located on both sides of the docking seat.

3. An automobile exhaust manifold according to claim 2, characterized in that: The positioning member includes a connecting portion and a positioning rod. The connecting portion is fixedly connected to the assembly head and is located at one side of the assembly head; the positioning rod is fixedly connected to the connecting portion and is located at one side of the connecting portion.

4. An automobile exhaust manifold as claimed in claim 3, characterized in that: The locking member includes a locking screw and a latch. The locking screw is threadedly connected to the assembly head and is located on one side of the assembly head. The latch is fixedly connected to the locking screw and is located on one side of the locking screw.

5. An automobile exhaust manifold as claimed in claim 4, characterized in that: The sealing member includes an expansion layer and a sealing gasket. The expansion layer is fixedly connected to the exhaust manifold and located inside the exhaust manifold; the sealing gasket is fixedly connected to the expansion layer and located on one side of the expansion layer.

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