Double-layer exhaust manifold

Abstract

The utility model relates to the technical field of double-layer type exhaust manifolds, in particular to a double-layer type exhaust manifold which comprises a straight pipe and vertical pipes, the top of the straight pipe is communicated with the bottoms of a plurality of vertical pipes, the top of the outer wall of each vertical pipe is fixedly connected with a first flange, the bottom of the outer wall of the straight pipe is connected with a control structure, and the control structure is connected with a second flange. A round pipe is slidably clamped to the front portion of the inner wall of the straight pipe, a second flange is fixedly connected to the front end of the outer wall of the round pipe, a first handle is matched in a control structure to drive a first screw to rotate downwards through a bottom plate, then an arc plate moves downwards, meanwhile, the arc plate drives a vertical rod to move downwards through the bottom plate, and the vertical rod plays a role in limiting the arc plate; when the double-layer type exhaust manifold is installed, the moving arc plate enables the straight pipe on the inner wall to move downwards, then the vertical pipe and the first flange are driven to move, normal installation of the double-layer type exhaust manifold is guaranteed, and normal use of the double-layer type exhaust manifold is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of double-layer exhaust manifolds, in particular to a double-layer exhaust manifold. Background Art

[0002] The main function of the exhaust manifold is to minimize exhaust resistance and avoid mutual interference between cylinders. The exhaust from each cylinder is concentrated and introduced into the exhaust main pipe with divergent pipes.

[0003] For example, a double-layer exhaust manifold with the authorization announcement number "CN219932299U" is provided. The utility model avoids direct contact of the exhaust gas with the welding position through the setting of the inner pipe, thereby reducing the heat conduction between the exhaust gas and the welding position, thereby avoiding weld cracking caused by uneven expansion. The utility model sets an asbestos ring so that the air in the gap between the inner pipe and the exhaust pipeline is not in direct contact with the exhaust gas, thereby avoiding heat convection between the two and further improving the protection effect. However, when using the double-layer exhaust manifold, the two rows of pipes are prone to misalignment at the connection. In addition, the double-layer exhaust manifold cannot be adjusted, and can only be replaced with two single-row exhaust manifolds for coordinated installation. The operation is cumbersome, resulting in the inability to install the double-layer exhaust manifold normally, affecting the normal use of the exhaust manifold. Utility Model Content

[0004] The utility model aims to solve the problem that the double-layer exhaust manifold cannot be normally installed, thus affecting the normal use of the exhaust manifold, and proposes a double-layer exhaust manifold.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A double-layer exhaust manifold is designed, including a straight pipe and a vertical pipe. The top of the straight pipe is connected to the bottom of multiple vertical pipes. The top of the outer wall of the vertical pipe is fixedly connected with a first flange. The bottom of the outer wall of the straight pipe is connected with a control structure. A circular pipe is slidably clamped at the front of the inner wall of the straight pipe. The front end of the outer wall of the circular pipe is fixedly connected with a second flange.

[0007] Preferably, the control structure includes an arc plate and a first screw, the inner wall of the arc plate is fixedly connected to the bottom of the outer wall of the straight tube, the bottom of the arc plate is rotatably connected to the top of the outer wall of the first screw, the outer wall of the first screw is threadedly connected to a bottom plate, the bottom of the first screw is fixedly connected to a first handle, and the outer side of the bottom of the arc plate is fixedly connected to a vertical rod.

[0008] Preferably, the outer wall of the vertical rod is slidably engaged with the outer side of the top of the bottom plate.

[0009] Preferably, notches are processed on the left and right sides of the bottom plate respectively.

[0010] Preferably, second screw rods are threadedly connected to the front of upper and lower sides of the straight tube respectively, and the inner side of the second screw rods is tightly pressed against the outer wall of the circular tube.

[0011] Preferably, a second handle is fixedly connected to the outer side of the second screw.

[0012] The utility model proposes a double-layer exhaust manifold, which has the beneficial effect of: the first handle in the control structure drives the first screw to rotate downward through the bottom plate, thereby causing the arc plate to move downward, and at the same time, the arc plate moves downward with the vertical rod through the bottom plate, and the vertical rod restricts the arc plate. The moving arc plate will cause the straight pipe on the inner wall to move downward, thereby moving the vertical pipe and the first flange, thereby ensuring the normal installation of the double-layer exhaust manifold and ensuring the normal use of the double-layer exhaust manifold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the connection relationship between the middle arc plate, the first screw and the bottom plate;

[0015] Figure 3 for Figure 2 The structural diagram of A in the figure;

[0016] Figure 4 for Figure 1 Schematic diagram of the structure of B.

[0017] In the figure: 1, straight pipe, 2, control structure, 201, arc plate, 202, first screw, 203, bottom plate, 204, first handle, 205, vertical rod, 3, reinforcement structure, 301, horizontal plate, 302, vertical rod, 303, top plate, 4, vertical pipe, 5, first flange, 6, round pipe, 7, second flange, 8, notch, 9, second screw, 10, second handle. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Embodiment 1:

[0020] See also Figure 1-4 In the present embodiment, a double-layer exhaust manifold includes a straight pipe 1 and a vertical pipe 4. The top of the straight pipe 1 is connected to the bottom of multiple vertical pipes 4. A first flange 5 is fixedly connected to the top of the outer wall of the vertical pipe 4. The bottom of the outer wall of the straight pipe 1 is connected to a control structure 2. A circular tube 6 is slidably connected to the front of the inner wall of the straight pipe 1. The cylinder 6 slides back and forth through the inner wall of the straight pipe 1 under force. A second flange 7 is fixedly connected to the front end of the outer wall of the circular tube 6.

[0021] The control structure 2 includes an arc plate 201 and a first screw rod 202. The inner wall of the arc plate 201 is fixedly connected to the bottom of the outer wall of the straight tube 1. The bottom of the arc plate 201 is rotatably connected to the top of the outer wall of the first screw rod 202. The top of the outer wall of the first screw rod 202 is subjected to force to rotate through the bottom bearing of the arc plate 201. The outer wall of the first screw rod 202 is threadedly connected to the bottom plate 203. The bottom of the first screw rod 202 is fixedly connected to a first handle 204. The first handle 204 is convenient for driving the first screw rod 202 to rotate up and down. A vertical rod 205 is fixedly connected to the outer side of the bottom of the arc plate 201. The outer wall of the vertical rod 205 is slidably engaged with the outer side of the top of the bottom plate 203. The vertical rod 205 is subjected to force to slide up and down through the outer circular opening of the top of the bottom plate 203. The left and right sides of the bottom plate 203 are respectively processed with notches 8.

[0022] By cooperating with the first handle 204 in the control structure 2, the first screw 202 is driven to rotate downward through the bottom plate 203, thereby causing the arc plate 201 to move downward. At the same time, the arc plate 201 moves downward with the vertical rod 205 through the bottom plate 203. The vertical rod 205 restricts the arc plate 201. The moving arc plate 201 causes the straight pipe 1 on the inner wall to move downward, thereby causing the vertical pipe 4 and the first flange 5 to move in position, thereby ensuring the normal installation of the double-layer exhaust manifold and ensuring the normal use of the double-layer exhaust manifold.

[0023] A second screw rod 9 is threadedly connected to the front of the upper and lower sides of the straight tube 1 respectively. The second screw rod 9 is subjected to force to rotate up and down through the outer wall of the straight tube 1. The inner side of the second screw rod 9 is tightly pressed against the outer wall of the circular tube 6. A second handle 10 is fixedly connected to the outer side of the second screw rod 9. The second handle 10 facilitates driving the second screw rod 9 to rotate.

[0024] Working principle:

[0025] When using the intake manifold, the top of the left first flange 5 is docked with the external air pipe and fixed with bolts. When the connection of the right first flange 5 conflicts, the first handle 204 is used to drive the first screw 202 to rotate downward through the bottom plate 203, thereby moving the arc plate 201 downward. At the same time, the arc plate 201 moves downward with the vertical rod 205 through the bottom plate 203. The vertical rod 205 restricts the arc plate 201. The moving arc plate 201 will cause the straight pipe 1 on the inner wall to move downward, thereby moving the vertical pipe 4 and the first flange 5, so that the second handle 10 rotates the second screw 9 outward, and the bottom of the second screw 9 is separated from the outer wall of the circular tube 6. Then the second flange 7 pulls the circular tube 6 forward to extend the distance, so that the front of the second flange 7 docks with the external exhaust pipe, and then the second handle 10 drives the second screw 9 to rotate inward, so that the inner side of the second screw 9 is pressed against the outer wall of the circular tube 6.

[0026] Embodiment 2:

[0027] See also Figure 1-4: In this embodiment, a double-layer exhaust manifold also includes a reinforcement structure 3, which includes a horizontal plate 301 and a vertical pole 302. The inner side of the outer wall of the horizontal plate 301 is plugged into the inner wall of the groove 8, the outer side of the top of the horizontal plate 301 is fixedly connected to the bottom of the vertical pole 302, and the top of the outer wall of the vertical pole 302 is fixedly connected to a top plate 303.

[0028] Working principle:

[0029] The inner side of the outer wall of the horizontal plate 301 is inserted into the groove 8 on the outer side of the bottom plate 203. At this time, the top plate 303 on the top of the vertical rod 302 fits with the connection, and then the bolts pass through the top plate 303 and fix it to the connection, thereby realizing the connection reinforcement of the exhaust manifold.

[0030] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A double-layer exhaust manifold, comprising a straight pipe (1) and a vertical pipe (4), characterized in that: The top of the straight pipe (1) is connected to the bottom of a plurality of vertical pipes (4); a first flange (5) is fixedly connected to the top of the outer wall of the vertical pipe (4); a control structure (2) is connected to the bottom of the outer wall of the straight pipe (1); a round pipe (6) is slidably connected to the front of the inner wall of the straight pipe (1); and a second flange (7) is fixedly connected to the front end of the outer wall of the round pipe (6).

2. A double-layer exhaust manifold according to claim 1, characterized in that: The control structure (2) comprises an arc plate (201) and a first screw rod (202); the inner wall of the arc plate (201) is fixedly connected to the bottom of the outer wall of the straight tube (1); the bottom of the arc plate (201) is rotationally connected to the top of the outer wall of the first screw rod (202); the outer wall of the first screw rod (202) is threadedly connected to a bottom plate (203); the bottom of the first screw rod (202) is fixedly connected to a first handle (204); and the outer side of the bottom of the arc plate (201) is fixedly connected to a vertical rod (205).

3. A double-layer exhaust manifold according to claim 2, characterized in that: The outer wall of the vertical rod (205) is slidably engaged with the outer side of the top of the bottom plate (203).

4. A double-layer exhaust manifold according to claim 2, characterized in that: The left and right sides of the bottom plate (203) are respectively processed with notches (8).

5. A double-layer exhaust manifold according to claim 1, characterized in that: The front sides of the upper and lower sides of the straight tube (1) are respectively threadedly connected with second screw rods (9), and the inner side of the second screw rod (9) is tightly pressed against the outer wall of the circular tube (6).

6. A double-layer exhaust manifold according to claim 5, characterized in that: A second handle (10) is fixedly connected to the outer side of the second screw rod (9).

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