Automobile air inlet pipe

Abstract

The utility model relates to the field of automobile parts, and discloses an automobile air inlet pipe which comprises an air inlet pipe body, a water filtering assembly is detachably fixed to the air inlet end of the air inlet pipe body and comprises a flow guide blind sleeve, an opening in one end of the flow guide blind sleeve faces the air inlet end, and the flow guide blind sleeve is in a conical cylinder shape with the diameter gradually reduced from the air inlet end to the inside. An air passing groove is formed in the upper end of the outer ring wall of the small-diameter end of the flow guide blind sleeve, a drainage groove is formed in the lower end of the outer wall, close to the air inlet end, of the air inlet pipe body, the water filtering assembly and the air inlet pipe body of the air inlet pipe are of two independent structures, production and assembly are convenient, and the water filtering effect is good.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and in particular to an automotive air intake pipe. Background Technology

[0002] The intake manifold of a car connects to the air filter and the throttle body at both ends. If water accidentally enters the intake manifold and cannot be drained quickly, it will significantly affect the dust filtration efficiency and lifespan of the filter element once it enters the air filter.

[0003] Chinese patent application CN111577492A discloses a dual-layer air intake pipe for an automobile engine, including an outer air intake pipe and an inner air intake pipe. One end of the outer air intake pipe is an air inlet, and the inner air intake pipe extends from the other end of the outer air intake pipe, with the extended end being an air outlet. A conical baffle is provided at the end of the inner air intake pipe located inside the outer air intake pipe away from the air outlet. A sieve-like partition is provided between the conical baffle and the inner wall of the outer air intake pipe. A first drain outlet and a second drain outlet are provided at the bottom of the outer air intake pipe. The first drain outlet is located near the air inlet, and the second drain outlet is located near the air outlet. A water baffle is provided inside the outer air intake pipe between the air inlet and the conical baffle.

[0004] The above structure requires the combination of a baffle plate, a conical baffle plate, and a sieve-like partition to form a staggered obstruction on the cross-section of the external air intake pipe, thus effectively intercepting water. These parts of the structure all need to be fixed inside the external air intake pipe, which is quite difficult to manufacture and has room for improvement. Utility Model Content

[0005] This invention addresses the shortcomings of existing air intake pipes, which require a double-layered pipe section combined with a baffle plate, a conical baffle, and a sieve-like partition to intercept water. It provides an automotive air intake pipe with a different structure that reduces manufacturing difficulty while maintaining excellent water filtration performance.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] An automotive air intake pipe includes an air intake pipe body, and a water filter assembly is detachably fixed to the air intake end of the air intake pipe body. The water filter assembly includes a flow guide sleeve with one end open towards the air intake end. The flow guide sleeve is a cone shape with a diameter gradually decreasing from the air intake end inward. An air passage groove is provided on the upper end of the outer ring wall of the small diameter end of the flow guide sleeve, and a drainage groove is provided on the lower end of the outer wall of the air intake pipe body near the air intake end.

[0008] Using the above scheme, the air intake pipe consists of an air intake pipe body and a flow guide blind sleeve. The flow guide blind sleeve is interference-fitted at the air intake end of the air intake pipe body. The flow guide blind sleeve is conical and has an air passage groove on the upper end of the side wall away from the air intake end. The air passage groove has a certain height to reduce the probability of water entering. A drainage groove is set at the lower end of the outer wall of the air intake pipe body near the air intake end to facilitate the timely discharge of water. When water is discharged from the air passage groove, the conical flow guide blind sleeve plays a guiding role, which can directly guide the water along its outer wall towards the drainage groove. After dripping, it can be quickly discharged from the drainage groove. The water filter component and the air intake pipe body are two independent structures, which facilitates production and assembly and improves the water filtration effect.

[0009] Preferably, a water baffle with a central air groove is provided on the main body of the air intake pipe at the end of the guide blind sleeve away from the air intake end.

[0010] Using the above scheme, the central air groove in the water-blocking baffle allows airflow to pass smoothly, and its water-blocking height can form a water storage space between the air intake end of the air intake pipe body and the guide blind sleeve, thereby preventing water from passing through the entire air intake pipe body when the flow rate is too large.

[0011] Preferably, the main body of the air intake pipe has an inclined narrowing section at the air passage groove, and the narrowing section has a water guide slope that slopes downward toward the air intake end.

[0012] By adopting the above scheme, the water guiding slope can guide the drainage direction and improve drainage efficiency.

[0013] Preferably, the end wall of the guide sleeve away from the air intake extends horizontally outward to form a baffle.

[0014] Using the above solution, when the water flow rate is too fast, the baffle can effectively prevent water from splashing.

[0015] Preferably, the drainage trough is equipped with a one-way valve that discharges water from the main body of the air intake pipe in one direction.

[0016] Preferably, the one-way valve is a flexible baffle with one end fixed to the side wall of the drain trough and the other end extending to cover the entire drain trough.

[0017] Using the above solution, the one-way valve has a simple structure and low price. Under normal conditions, it is in a closed state, preventing water or gas from entering the main body of the air intake pipe through the drain tank. When there is a small amount of water in the main body of the air intake pipe, it will deform and drain the water out of the drain tank.

[0018] Preferably, the flexible baffle is made of flexible plastic or rubber.

[0019] As a preferred embodiment, the end of the air guide sleeve near the intake end is folded outward to form an end sleeve with an interference fit on the outer wall of the intake pipe body.

[0020] Using the above solution, after the end sleeve and the intake pipe are interference-fitted, the guide blind sleeve can be detachably fixed to the intake pipe body. The two components are produced separately and then quickly assembled, which facilitates production.

[0021] This utility model, by adopting the above technical solutions, has significant technical effects: the air inlet pipe consists of an air inlet pipe body and a flow guide blind sleeve. The flow guide blind sleeve is interference-fitted onto the air inlet end of the air inlet pipe body. The flow guide blind sleeve is conical and has an air passage groove on the upper end of the side wall away from the air inlet end. The air passage groove has a certain height to reduce the probability of water entering. A drainage groove is provided on the lower end of the outer wall of the air inlet pipe body near the air inlet end to facilitate the timely discharge of water. When water is discharged from the air passage groove, the conical flow guide blind sleeve plays a guiding role, which can directly guide the water along its outer wall towards the drainage groove. After dripping, it can be quickly discharged from the drainage groove. The water filter component and the air inlet pipe body are two independent structures, which facilitates production and assembly and has a good water filtration effect. Attached Figure Description

[0022] Figure 1 This is an isometric view of an automobile intake pipe according to this embodiment;

[0023] Figure 2 This is a front view of an automobile air intake pipe according to this embodiment;

[0024] Figure 3 yes Figure 2 A sectional view of AA.

[0025] The parts referred to by the numbers in the above attached figures are as follows: 1. Main body of the intake pipe; 101. Intake end; 102. Reduction section; 2. End sleeve; 3. Flow guide blind sleeve; 4. Air passage groove; 5. Drain groove; 6. Water baffle; 7. Flexible baffle; 8. Water baffle; 801. Central air groove. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] A type of automobile air intake pipe, reference Figures 1-3 As shown, the device includes an air intake pipe body 1. A water filter assembly is detachably fixed to the air intake end 101 of the air intake pipe body 1. The water filter assembly includes a flow guide sleeve 3 with one end open towards the air intake end 101. The flow guide sleeve 3 is a cone-shaped tube with a diameter that gradually decreases from the air intake end 101 inward. An air passage groove 4 is provided on the upper end of the outer ring wall of the small diameter end of the flow guide sleeve 3. Three air passage grooves 4 are provided at intervals. The end wall of the flow guide sleeve 3 away from the air intake end 101 extends horizontally outward to form a baffle plate 6. The end of the flow guide sleeve 3 close to the air intake end 101 is folded outward to form an end sleeve 2 with an interference fit on the outer wall of the air intake pipe body 1. A sealing ring is provided between the end sleeve 2 and the air intake pipe body 1.

[0028] A water baffle 8 with a central air groove 801 is provided on the air intake pipe body 1 at the end of the flow guide blind sleeve 3 away from the air intake end 101. The air intake pipe body 1 has an inclined diameter reduction section 102 corresponding to the air passage groove 4. The diameter reduction section 102 has a water guide slope that slopes downward toward the air intake end 101. A drainage groove 5 is provided on the lower end of the outer wall of the air intake pipe body 1 near the air intake end 101. A one-way valve is provided on the drainage groove 5 to discharge water in the air intake pipe body 1 in one direction. The one-way valve is a flexible baffle 7 with one end fixed to the side wall of the drainage groove 5 and the other end extending to cover the entire drainage groove 5. The flexible baffle 7 is made of flexible plastic or rubber. The flexible plastic is TPU.

[0029] In this scheme, the gas route is: guide sleeve 3 – air passage 4 – central air passage 801 – air outlet of the main body of the air inlet pipe 1; the water route is: guide sleeve 3 – air passage 4 – drainage trough 5. The central air passage 801 has a certain height, so that a water storage space is formed between the main body of the air inlet pipe 1, the water baffle 8 and the guide sleeve 3. When water is discharged from the drainage trough 5, the water baffle 6 is used to prevent water from splashing. The guide sleeve 3 guides the water towards the drainage trough 5. The water droplets fall and are located at the end near the air inlet end 101. The flexible baffle 7 is flipped outward after being subjected to the gravity of the water to supply water to flow out of the drainage trough 5.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An automotive air intake pipe, comprising an air intake pipe body (1), characterized in that: A water filter assembly is detachably fixed at the air intake end (101) of the air intake pipe body (1). The water filter assembly includes a flow guide blind sleeve (3) with one end open towards the air intake end (101). The flow guide blind sleeve (3) is a cone-shaped tube with a diameter gradually decreasing from the air intake end (101) inward. An air passage groove (4) is provided on the upper end of the outer ring wall of the small diameter end of the flow guide blind sleeve (3). A drain groove (5) is provided on the lower end of the outer wall of the air intake pipe body (1) near the air intake end (101).

2. The automobile intake pipe according to claim 1, characterized in that: A water baffle (8) with a central air groove (801) is provided on the air intake pipe body (1) at the end of the air guide blind sleeve (3) away from the air intake end (101).

3. The automobile intake pipe according to claim 1, characterized in that: The main body of the air intake pipe (1) has an inclined narrowing section (102) corresponding to the air passage groove (4), and the narrowing section (102) has a water guide slope that slopes downward toward the air intake end (101).

4. The automobile intake pipe according to claim 1, characterized in that: The end wall of the guide sleeve (3) away from the air inlet end (101) extends horizontally outward to form a baffle plate (6).

5. An automobile air intake pipe according to any one of claims 1-4, characterized in that: The drain trough (5) is equipped with a one-way valve that discharges water from the main body of the air inlet pipe (1) in one direction.

6. The automobile intake pipe according to claim 5, characterized in that: The one-way valve is a flexible baffle (7) that is fixed at one end to the side wall of the drain trough (5) and extends to cover the entire drain trough (5) at the other end.

7. The automobile intake pipe according to claim 6, characterized in that: The flexible baffle (7) is made of flexible plastic or rubber.

8. The automobile intake pipe according to claim 1, characterized in that: The end of the air guide blind sleeve (3) near the air intake end (101) is folded outward to form an end sleeve (2) with interference fit on the outer wall of the air intake pipe body (1).

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