Engine and fixing device for intake pipe of engine
The invention provides a fixing device for an intake pipe. The fixing device is used for fixing the intake pipe on a cylinder cover. The fixing device for the intake pipe comprises a fastening bolt and a bolt sleeve, wherein the fastening bolt penetrates through a mounting hole, and is inserted into a fixing hole corresponding to the mounting hole, the mounting hole is formed in one end, connected with the cylinder cover, of the intake pipe, and the fixing hole is positioned in the cylinder cover; and the bolt sleeve is sleeved outside the fastening bolt. According to the fixing device for the intake pipe, the bolt sleeve sleeved outside the fastening bolt is additionally arranged, the cylinder cover transmits vibration to the bolt sleeve through the fastening bolt when a cylinder vibrates, the bolt sleeve transmits the vibration to the intake pipe, and in the vibration transmission process, the bolt sleeve realizes a cushioning function, and the vibration is weakened, so that the vibration of the intake pipe is reduced, the overall vibration of an engine is reduced, noise produced by the whole engine is further reduced, and the working environment of staff is optimized. The invention also provides the engine with the fixing device for the intake pipe. 1. A fixing device of the air inlet pipe, the inlet pipe for the (1) is fixed on the cylinder head, the air inlet pipe fixing device comprises: through the air inlet pipe (1) and said cylinder head is connected with one end of the mounting hole (11), and is inserted into and is located in the cylinder head with the mounting hole (11) corresponding to the fixing hole of the fastening bolt (2); characterized in that also comprises a sleeve arranged on the fastening bolt (2) of the outer side of the bolt sleeve (3). 2. Fixing device of the air inlet pipe according to Claim 1, characterized in that also includes and wherein the fastening bolt (2) is connected with the sleeve, and is arranged in the air inlet pipe (1) and the lower gasket between the cylinder head (6). 3. Fixing device of the air inlet pipe according to Claim 2, characterized in that the lower gasket (6) is connected with the camshaft holder and the lower filling piece department and inserted into the mounting hole (11) of the lower counter bore portion (15) of the lower projection. 4. Fixing device of the air inlet pipe according to Claim 2, characterized in that the lower gasket (6) is a rubber gasket. 5. Fixing device according to Claim 4 of the air inlet pipe, characterized in that the lower filling piece department along its the peripheral side is provided with a groove in the circumferential direction; said lower gasket (6) also includes embedded in the groove of the metal pad (5). 6. The arbitrary one of the fixing device according to Claim 1-5 of the air inlet pipe, characterized in that also includes and wherein the fastening bolt (2) is connected with the end of the sleeve, and with the mounting hole (11) in contact with the end surface of the upper gasket (4). 7. Fixing device according to Claim 6 of the air intake duct, characterized in that the gasket (4) includes with the mounting hole (11) in contact with the end face of the upper filling piece department and inserted into the mounting hole (11) of the upper counterbore portion (13) of the protrusion. 8. An engine, including: cylinder, the cylinder head of said cylinder is connected with the inlet pipe (1), used for fixing the cylinder head and the inlet pipe (1) of the fixing device, characterized in that the fixing device such as a claim 1-7 of any one of the air inlet pipe in the fixing device. 9. Engine according to Claim 8, characterized in that the air intake pipe (1) is connected with the cylinder head is provided with a boss at one end of; the boss including upper away from the cylinder head (12) and close to the metal of the cylinder head (14), and the states the lug boss (12) and the states the lug boss (14) is provided with a relative the mounting hole (11); the states the lug boss (12) and the states the lug boss (14) phase separation.