Explosion-proof engine exhaust manifold

Abstract

The utility model discloses an explosion-proof engine exhaust manifold which comprises a pipe body structure, an inlet pipe of the pipe body structure is connected with a buffer structure, the pipe body structure is connected with a first butt flange of an engine air outlet through the buffer structure, an outlet pipe of the pipe body structure is connected with an explosion-proof structure, and the pipe body structure comprises a main pipe body, an inlet pipe and an outlet pipe. The buffer structure comprises a top metal binding face, a bottom metal binding face, an expansion joint, an exhaust channel, a connecting lug, an elastic arm and a penetrating ring. The anti-explosion structure comprises a second butt joint flange, a threaded hole, a wedging pipe opening, a gradual change channel, a fireproof filter screen and a slag discharging opening. The utility model has the beneficial effects that the pipe body structure is connected with the first butt flange of the exhaust port of the engine through the buffer structure, so that the shock resistance and the high-temperature anti-deformation performance of the connecting port are improved; and an anti-explosion structure is arranged, so that large-particle impurities with sparks can be effectively filtered and blocked and are prevented from being discharged out of a pipe opening when the impurities with the sparks are discharged out of the pipe opening.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an explosion-proof engine exhaust manifold. Background Art

[0002] In existing engine technology, the engine exhaust manifold consists of an intake branch port, an air duct and an exhaust main port. Its structure is that an intake branch port is distributed on one end face and connected to the cylinder head, and the other end face is an exhaust main port connected to the supercharger.

[0003] The exhaust manifold of an existing engine is located at both ends of the exhaust manifold. When the engine is working, the exhaust manifold collects high-temperature exhaust gas from each cylinder of the engine, and the exhaust gas is discharged from the exhaust manifold, which makes the local temperature at the exhaust manifold manifold higher and may be discharged with sparks and fine particles, which will cause thermal expansion of the interface and lead to air leakage, and may also cause deflagration when encountering flammable gas. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an explosion-proof engine exhaust manifold, which has explosion-proof function and heat-resistant deformation function, thereby solving the problems existing in the prior art.

[0005] In order to achieve the above-mentioned explosion-proof function and heat-resistant deformation function, the specific technical solutions adopted by the utility model are as follows:

[0006] An explosion-proof engine exhaust manifold comprises a pipe structure, an inlet pipe of the pipe structure is connected to a buffer structure, the pipe structure is connected to a first docking flange of an engine air outlet through the buffer structure, and an outlet pipe of the pipe structure is connected to an explosion-proof structure.

[0007] Furthermore, the pipe body structure includes a main pipe, an inlet pipe, and an outlet pipe. One end of the main pipe is provided with an inlet pipe, and the outlet direction of the main pipe is provided with an outlet pipe.

[0008] Furthermore, the buffer structure includes a top metal fitting surface, a bottom metal fitting surface, an expansion joint, an exhaust channel, a connecting ear, an elastic arm, and a connecting ring. The bottom end of the top metal fitting surface is connected to the expansion joint, and one end of the expansion joint is connected to the bottom metal fitting surface.

[0009] Furthermore, an exhaust passage is provided between the top metal bonding surface and the bottom metal bonding surface, and connecting ears are connected to the circumference of the top metal bonding surface and the bottom metal bonding surface.

[0010] Furthermore, an elastic arm is passed through the connecting ear, and one end of the elastic arm is connected to a connecting ring.

[0011] Furthermore, the explosion-proof structure includes a second docking flange, a threaded hole, a matching pipe mouth, a gradual channel, a fireproof filter, and a slag discharge port. The second docking flange is provided with a threaded hole, and the center of the second docking flange is connected to the matching pipe mouth.

[0012] Furthermore, a gradual change channel is provided in the fitting pipe mouth, the end of the gradual change channel is connected to a fireproof filter screen, and a slag discharge port is provided at the bottom end of the fitting pipe mouth.

[0013] Compared with the prior art, the utility model provides an explosion-proof engine exhaust manifold having the following features:

[0014] Beneficial effects:

[0015] The pipe body structure provided in the utility model is connected to the first docking flange of the engine exhaust port through a buffer structure, thereby improving the impact resistance and high-temperature anti-deformation performance of the connection port, and the explosion-proof structure provided can effectively filter and block large particles of impurities with sparks to prevent them from being discharged from the pipe port with sparks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the main structure of an explosion-proof engine exhaust manifold according to an embodiment of the utility model;

[0018] Figure 2 It is a main structure split diagram of the explosion-proof engine exhaust manifold according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of a buffer structure of an explosion-proof engine exhaust manifold according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the explosion-proof structure of an explosion-proof engine exhaust manifold according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the fitting pipe opening of the explosion-proof engine exhaust manifold according to an embodiment of the utility model.

[0022] In the figure:

[0023] 1. Pipe body structure; 101. Main pipe; 102. Inlet pipe; 103. Outlet pipe; 2. First docking flange; 3. Buffer structure; 301. Top metal fitting surface; 302. Bottom metal fitting surface; 303. Expansion joint; 304. Exhaust channel; 305. Connecting ear; 306. Elastic arm; 307. Connecting ring; 4. Explosion-proof structure; 401. Second docking flange; 402. Threaded hole; 403. Fitting pipe mouth; 404. Gradient channel; 405. Fireproof filter; 406. Slag discharge port. DETAILED DESCRIPTION

[0024] 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.

[0025] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-5 As shown, it includes a pipe body structure 1, an inlet pipe 102 of the pipe body structure 1 is connected to a buffer structure 3, the pipe body structure 1 is connected to a first docking flange 2 of an engine air outlet through the buffer structure 3, and an outlet pipe 103 of the pipe body structure 1 is connected to an explosion-proof structure 4.

[0026] The tube body structure 1 is connected to the first docking flange 2 through the buffer structure 3. The first docking flange 2 is the docking structure of the engine's exhaust port. The buffer structure 3 can effectively protect the connection between the tube body structure 1 and the engine's exhaust port from high-temperature deformation, and can effectively resist impact and prevent deformation and leakage. The explosion-proof structure 4 can block particles with sparks and then discharge them after the engine is started for the second time.

[0027] The pipe structure 1 comprises a main pipe 101 , an inlet pipe 102 , and an outlet pipe 103 . The inlet pipe 102 is disposed at one end of the main pipe 101 , and the outlet pipe 103 is disposed at the outlet direction of the main pipe 101 .

[0028] The buffer structure 3 includes a top metal bonding surface 301, a bottom metal bonding surface 302, an expansion joint 303, an exhaust channel 304, a connecting ear 305, an elastic arm 306, and a connecting ring 307. The bottom end of the top metal bonding surface 301 is connected to the expansion joint 303, one end of the expansion joint 303 is connected to the bottom metal bonding surface 302, an exhaust channel 304 is opened between the top metal bonding surface 301 and the bottom metal bonding surface 302, the top metal bonding surface 301 and the bottom metal bonding surface 302 are connected to the surrounding sides with connecting ears 305, the connecting ears 305 are penetrated with the elastic arm 306, and one end of the elastic arm 306 is connected to the connecting ring 307.

[0029] The two metal bonding surfaces of the buffer structure 3 respectively fit the surface of the inlet pipe 102 of the main body 101 and the bonding surface of the first docking flange 2, and are fixed with screws through the docking holes of the docking surfaces. Since the top metal bonding surface 301 and the bottom metal bonding surface 302 are connected by the elastic arm 306 through the connecting ear 305, and the through ring 307 connected to the other end of the elastic arm 306 is connected to the fixing screw, its fulcrum is located on the opposite side of the bonding surface. Therefore, after the first docking flange 2 and the inlet pipe 102 are docked, an elastic downward pressure is provided to the bonding surface, thereby making the connection have the function of elastic buffering. The expansion joint 303 effectively buffers thermal deformation and high-pressure gas passing through it, so that it has a certain deformation space to prevent air leakage from the interface.

[0030] The explosion-proof structure 4 includes a second docking flange 401, a threaded hole 402, a fitting pipe mouth 403, a gradient channel 404, a fireproof filter 405, and a slag discharge port 406. The second docking flange 401 is provided with a threaded hole 402, the center of the second docking flange 401 is connected to the fitting pipe mouth 403, the fitting pipe mouth 403 is provided with a gradient channel 404, the end of the gradient channel 404 is connected to the fireproof filter 405, and the bottom end of the fitting pipe mouth 403 is provided with a slag discharge port 406.

[0031] The second docking flange 401 is fixedly docked on the outlet pipe 103 through the threaded hole 402, and the fitting pipe mouth 403 can be embedded in the inner pipe mouth of the outlet pipe 103. The four sets of gradient channels 404 can make the spark-carrying particles filtered by the fireproof filter 405 fall to the slag discharge port 406 under the action of the channel slope and gravity after extinguishing, and then can be discharged from the slag discharge port 406 under the action of the airflow after the second engine start.

[0032] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0033] In summary, with the aid of the above-mentioned technical scheme of the utility model, the pipe body structure 1 is connected to the first docking flange 2 through the buffer structure 3. The first docking flange 2 is the docking structure of the exhaust port of the engine. The buffer structure 3 can effectively protect the connection between the pipe body structure 1 and the exhaust port of the engine from high-temperature deformation, and can effectively resist impact and deformation and leakage. The explosion-proof structure 4 can block particles with sparks, and then discharge them after the engine is started for the second time. The two metal bonding surfaces of the buffer structure 3 are respectively bonded to the surface of the inlet pipe 102 of the main body 101 and the docking surface of the first docking flange 2, and are fixed with screws through the docking holes of the docking surfaces. Since the top metal bonding surface 301 and the bottom metal bonding surface 302 are connected to the elastic arm 306 through the connecting ear 305, and the elastic arm 306 has another The connecting ring 307 connected to the end is connected to the fixing screw, and its fulcrum is located on the surface opposite to the fitting surface. Therefore, after the first docking flange 2 is docked with the inlet pipe 102, it will provide elastic downward pressure to the fitting surface, so that the connection has the function of elastic buffering. The expansion joint 303 effectively buffers thermal deformation and high-pressure gas passing through it, so that it has a certain deformation space to prevent air leakage from the interface. The second docking flange 401 is fixedly docked to the outlet pipe 103 through the threaded hole 402, and the fitting pipe mouth 403 can be embedded in the inner pipe mouth of the outlet pipe 103. The four groups of gradual channels 404 can make the spark-carrying particles filtered by the fireproof filter 405 fall at the slag discharge port 406 under the action of the channel slope and gravity after extinguishing, and then can be discharged from the slag discharge port 406 under the action of airflow after the second engine start.

[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An explosion-proof engine exhaust manifold, characterized in that: The invention comprises a pipe body structure (1), wherein an inlet pipe (102) of the pipe body structure (1) is connected to a buffer structure (3), the pipe body structure (1) is connected to a first docking flange (2) of an engine air outlet via the buffer structure (3), and an outlet pipe (103) of the pipe body structure (1) is connected to an explosion-proof structure (4).

2. An explosion-proof engine exhaust manifold according to claim 1, characterized in that: The pipe body structure (1) comprises a main pipe (101), an inlet pipe (102), and an outlet pipe (103); one end of the main pipe (101) is provided with the inlet pipe (102), and the outlet direction of the main pipe (101) is provided with the outlet pipe (103).

3. An explosion-proof engine exhaust manifold according to claim 2, characterized in that: The buffer structure (3) comprises a top metal bonding surface (301), a bottom metal bonding surface (302), an expansion joint (303), an exhaust channel (304), a connecting ear (305), an elastic arm (306), and a connecting ring (307); the bottom end of the top metal bonding surface (301) is connected to the expansion joint (303), and one end of the expansion joint (303) is connected to the bottom metal bonding surface (302).

4. An explosion-proof engine exhaust manifold according to claim 3, characterized in that: An exhaust channel (304) is provided between the top metal bonding surface (301) and the bottom metal bonding surface (302), and connecting ears (305) are connected to the circumference of the top metal bonding surface (301) and the bottom metal bonding surface (302).

5. An explosion-proof engine exhaust manifold according to claim 4, characterized in that: An elastic arm (306) is inserted into the connecting ear (305), and one end of the elastic arm (306) is connected to a connecting ring (307).

6. The explosion-proof engine exhaust manifold according to claim 5, characterized in that: The explosion-proof structure (4) comprises a second docking flange (401), a threaded hole (402), a fitting pipe opening (403), a gradual passage (404), a fireproof filter (405), and a slag discharge port (406); the second docking flange (401) is provided with a threaded hole (402); and the center of the second docking flange (401) is connected to the fitting pipe opening (403).

7. An explosion-proof engine exhaust manifold according to claim 6, characterized in that: A gradual change channel (404) is provided in the fitting pipe opening (403), the end of the gradual change channel (404) is connected to a fireproof filter (405), and a slag discharge port (406) is provided at the bottom end of the fitting pipe opening (403).

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