Air filter lower air outlet pipe

Abstract

The invention relates to the technical field of automobile air inlet systems, in particular to an air filter lower air outlet pipe which comprises a lower air outlet pipe shell, an air inlet of the lower air outlet pipe shell is fixedly connected with an automobile air filter shell through a first connecting piece, and an air outlet of the lower air outlet pipe shell is fixedly connected with an automobile engine air inlet manifold through a second connecting piece. A reverse blocking mechanism is mounted on the air inlet side and comprises a control unit, a rotating shaft is fixedly connected to the top end of an output shaft of the control unit, a turning plate is fixedly connected to the outer side of the middle of the rotating shaft, and sealing plates are arranged on the two sides of the turning plate; according to the engine air inlet branch pipe, after water enters the lower air outlet pipe shell, the turning plate can be closed, more water sources are prevented from entering the lower air outlet pipe shell, meanwhile, the water sources entering the engine air inlet branch pipe are further reduced through the water suction ring plate, an engine is effectively better protected, and the engine air inlet branch pipe is more convenient to use. The problem of irreversible damage to a piston connecting rod due to the fact that the engine enters a piston cavity is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of automobile air intake systems, in particular to an air filter lower air outlet pipe. Background Art

[0002] The lower air outlet pipe of the automobile air filter is a component that connects the automobile air filter and the engine intake system. Its main function is to transport the filtered air from the air filter to the intake manifold of the engine. This pipe is not only responsible for transmitting air, but also may contain some components used to reduce intake noise and vibration, such as resonance chambers and silencer elements. In some designs, the exhaust pipe, throat and resonant cavity may be integrated into one piece and made by injection molding process to improve the overall mode, reduce space occupation and reduce cost. In addition, the design and structure of these components will take into account the effects of noise reduction and vibration reduction to improve the performance and ride comfort of the car. When a car is wading, if water enters the air filter housing, the water will enter the car engine through the air filter lower outlet pipe and the intake manifold, and then enter the piston cavity, causing damage to the piston connecting rod and causing irreversible damage. Therefore, an air filter lower outlet pipe is proposed to address the above problem. Summary of the invention

[0003] The purpose of the present invention is to provide an air filter lower air outlet pipe to solve the problem that when a car is wading, if water enters the interior of the car air filter housing, the water source will enter the interior of the car engine through the air filter lower air outlet pipe and the intake manifold, and then cause the water to enter the interior of the piston cavity, causing damage to the piston connecting rod and causing irreversible damage.

[0004] To achieve the above object, the present invention provides the following technical solutions: The lower air outlet pipe of the air filter comprises a lower air outlet pipe shell, the air inlet of the lower air outlet pipe shell is fixedly connected to the automobile air filter shell through a first connecting piece, and the exhaust port of the lower air outlet pipe shell is fixedly connected to the automobile engine intake manifold through a second connecting piece; a reverse blocking mechanism is installed on the air inlet side, and the reverse blocking mechanism comprises a control unit, a rotating shaft is fixedly connected to the top end of the output shaft of the control unit, a flap is fixedly connected to the middle outer side of the rotating shaft, and sealing plates are provided on both sides of the flap; a positioning ring plate is fixedly connected to the inner side of the exhaust port, a ring groove is provided on one side of the positioning ring plate, a special-shaped positioning ring is installed on the inner side of the ring groove, the inner side of the special-shaped positioning ring is installed inside the water absorption ring plate, and the water absorption ring plate is provided with a disassembly hole near the top end of the exhaust port.

[0005] As a further optimization of the present invention, the lower exhaust pipe shell is used to connect the automobile air filter housing and the automobile engine intake manifold, and a side positioning frame for positioning is fixedly connected to the outer side of the lower exhaust pipe shell, and a hole for positioning bolts to pass through is opened inside the side positioning frame.

[0006] As a further optimization of the present invention, there are multiple disassembly holes, which are distributed in a ring shape inside the water absorption ring plate, and the disassembly holes are arranged on the inner side of the positioning ring plate.

[0007] As further optimized content of the present invention, the control unit includes a water inlet detection module, a signal receiving module, a stepper motor with a self-locking function and a signal transmitting module. The water inlet detection module is used to monitor the water inlet problem at the air inlet. The signal receiving module is used to receive the detection signal of the water inlet detection module and the signal of the automobile computer board, and control the operation of the stepper motor. The stepper motor is used to drive the flap to rotate. The signal transmitting module is used to send the position information of the flap to the automobile computer board. The stepper motor is powered by the automobile battery.

[0008] As a further optimization of the present invention, the rotating shaft is rotationally connected to the lower exhaust pipe shell, two sealing plates are provided, the two sealing plates are semicircularly arranged, and the sealing plates are respectively arranged on both sides of the rotating shaft, and the sealing plates are fixedly connected to the inner wall of the lower exhaust pipe shell.

[0009] As a further optimization of the present invention, when the flap seals the lower air outlet pipe housing, one end surface edge thereof is in close contact with one of the sealing plates, and the other end surface edge is in close contact with the other sealing plate.

[0010] As a further optimization of the present invention, the vertical cross-section of the water-absorbing ring plate is trapezoidal on one side, and the water-absorbing ring plate is provided with a disassembly hole side to be in close contact with the positioning ring plate.

[0011] As a further optimization of the present invention, a clamping groove and a connecting groove are provided on the inner side of the edge of the water absorption ring plate, the clamping groove and the connecting groove are communicated with each other, and the special-shaped positioning ring is connected to the water absorption ring plate through the clamping groove and the connecting groove.

[0012] As a further optimization of the present invention, the inner side of the special-shaped positioning ring is provided with a plurality of protrusions, and the protrusions on the inner side of the special-shaped positioning ring correspond one to one with the slots, and there are four slots.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by providing a reverse blocking mechanism and a water absorption ring plate, after water enters the lower air outlet pipe housing, the flap can be closed to prevent more water from entering. At the same time, the water absorption ring plate can further reduce the water source entering the engine intake branch pipe, effectively protecting the engine better to prevent the engine piston cavity from entering and causing irreversible damage to the piston connecting rod; 2. In the present invention, the positioning ring plate can prevent the problem of displacement of the water absorption ring plate caused by a large air intake flow inside the lower air outlet pipe housing. At the same time, the special-shaped positioning ring and the disassembly hole can facilitate the replacement of the new water absorption ring plate during the later maintenance process. 3. In the present invention, by setting up a reverse blocking mechanism, it is possible to detect in time after water enters the lower exhaust pipe shell, and seal the air inlet of the lower exhaust pipe shell. The control unit is connected to the automobile engine control computer and can be used for later maintenance. The overall electronic control is adopted to improve the response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the structure at A in the middle; Figure 3 This is a schematic diagram of the structure of the anti-reversal mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the water absorption ring plate of the present invention; Figure 5 This is a schematic diagram of the position structure of the disassembly hole of the present invention; Figure 6 This is a system block diagram of the control unit of the present invention.

[0015] In the figure: 1, lower air outlet pipe housing; 2, air inlet; 3, air outlet; 4, first connecting member; 5, positioning ring plate; 6, ring groove; 7, side positioning frame; 8. Anti-reversal mechanism; 81. Control unit; 82. Rotating shaft; 83. Flip plate; 84. Sealing plate; 9. Water absorption ring plate; 10. Clamping groove; 11. Special-shaped positioning ring; 12. Disassembly hole; 13. Second connecting piece; 14. Connecting groove. DETAILED DESCRIPTION

[0016] See also Figure 1-6 , the present invention provides a technical solution: The lower air outlet pipe of the air filter comprises a lower air outlet pipe shell 1, the air inlet 2 of the lower air outlet pipe shell 1 is fixedly connected to the automobile air filter shell through a first connecting piece 4, and the exhaust port 3 of the lower air outlet pipe shell 1 is fixedly connected to the automobile engine intake manifold through a second connecting piece 13; a reverse blocking mechanism 8 is installed on the air inlet 2 side, and the reverse blocking mechanism 8 comprises a control unit 81, a rotating shaft 82 is fixedly connected to the top end of the output shaft of the control unit 81, a flap 83 is fixedly connected to the middle outer side of the rotating shaft 82, and sealing plates 84 are provided on both sides of the flap 83; a positioning ring plate 5 is fixedly connected to the inner side of the exhaust port 3, a ring groove 6 is provided on one side of the positioning ring plate 5, a special-shaped positioning ring 11 is installed on the inner side of the ring groove 6, and the inner side of the special-shaped positioning ring 11 is installed inside the water absorption ring plate 9, and the water absorption ring plate 9 is provided with a disassembly hole 12 near the top of the exhaust port 3.

[0017] As a technical solution for further implementation of this scheme, the lower air outlet pipe housing 1 is used to connect the automobile air filter housing and the automobile engine intake manifold. The outer side of the lower air outlet pipe housing 1 is fixedly connected with a side positioning frame 7 for positioning. The side positioning frame 7 is provided with holes for positioning bolts to pass through. Through the above arrangement, the lower air outlet pipe housing 1 can be stably installed inside the automobile engine compartment and applied to the air supply pipeline; As a technical solution for further implementation of this scheme, a plurality of disassembly holes 12 are provided, and the disassembly holes 12 are distributed in a ring shape inside the water absorption ring plate 9, and the disassembly holes 12 are arranged on the inner side of the positioning ring plate 5. Through the above arrangement, it is convenient to replace the water absorption ring plate 9 later; As a technical solution for further implementation of this solution, the control unit 81 includes a water inlet detection module, a signal receiving module, a stepper motor with a self-locking function, and a signal transmitting module. The water inlet detection module is used to monitor the water inlet problem of the air inlet 2. The signal receiving module is used to receive the detection signal of the water inlet detection module and the signal of the car computer board, and control the operation of the stepper motor. The stepper motor is used to drive the flap 83 to rotate. The signal transmitting module is used to send the position information of the flap 83 to the car computer board. The stepper motor is powered by the car battery. Through the above arrangement, when water enters the lower air outlet pipe housing 1, the flap 83 can be rotated in time to block the air inlet 2 of the lower air outlet pipe housing 1; As a further technical solution for the implementation of this solution, the rotating shaft 82 is rotatably connected to the lower air outlet pipe housing 1, and two sealing plates 84 are provided. The two sealing plates 84 are semicircularly arranged, and the sealing plates 84 are respectively arranged on both sides of the rotating shaft 82. The sealing plates 84 are fixedly connected to the inner wall of the lower air outlet pipe housing 1. Through the above arrangement, the flap 83 can be stably limited, and at the same time, the edge of the flap 83 can be further sealed by the sealing plate 84; As a further technical solution of this scheme, when the flap 83 seals the lower air outlet pipe housing 1, one end surface edge thereof is in close contact with one of the sealing plates 84, and the other end surface edge is in close contact with the other sealing plate 84. The above arrangement further improves the sealing effect after the flap 83 rotates. As a further technical solution of this scheme, the vertical cross-section of the water absorption ring plate 9 is a trapezoid on one side, and the water absorption ring plate 9 is provided with a disassembly hole 12 and is in close contact with the positioning ring plate 5. Through the above arrangement, the smoothness of the gas delivery process of the lower gas outlet pipe housing 1 can be reduced; As a further technical solution of this solution, a card slot 10 and a connecting slot 14 are provided on the inner side of the edge of the water absorption ring plate 9, the card slot 10 and the connecting slot 14 are connected, and the special-shaped positioning ring 11 is connected to the water absorption ring plate 9 through the card slot 10 and the connecting slot 14. Through the above arrangement, the stability of the water absorption ring plate 9 installed inside the lower air outlet pipe housing 1 can be improved; As a technical solution for further implementing this scheme, a plurality of protrusions are provided on the inner side of the special-shaped positioning ring 11, and the protrusions on the inner side of the special-shaped positioning ring 11 correspond one to one with the card slot 10. There are four card slots 10. The above arrangement further improves the stability of the special-shaped positioning ring 11 during installation and use.

[0018] Working process: During the use of the lower air filter outlet pipe, one end is fixedly connected to the automobile air filter housing, and the other end is fixedly connected to the automobile engine intake manifold. After the connection is completed, during actual use, when water enters the automobile air filter housing due to natural disasters, the water inlet detection module inside the control unit 81 will monitor this information and control the flap 83 to rotate to a state of being tightly attached to the two sealing plates 84. At this time, the flap 83 cooperates with the sealing plate 84 to block the air inlet position, thereby preventing water from entering the automobile engine intake manifold through the lower air filter housing 1, which can provide good protection for the automobile engine. In the process of the control unit 81 detecting the water inlet signal and the flap 83 rotating and closing, there will be a certain time delay problem, and then a small amount of water will enter the lower air outlet pipe housing 1. When this part of the water source passes through the water absorption ring plate 9, it will be absorbed by the water absorption ring plate 9, further reducing the water source entering the engine intake manifold, which can better protect the engine; Later, during the repair of the water ingress problem of the car, the staff will remove the water absorption ring plate 9 from the lower air outlet pipe shell 1 through the disassembly hole 12, replace the new lower air outlet pipe shell 1, and clean the water traces inside the lower air outlet pipe shell 1. The lower air outlet pipe shell 1 can be installed again for use. During use, the flap 83 can be controlled to open and return to the initial position through the control unit 81.

[0019] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. An air filter lower air outlet pipe, comprising a lower air outlet pipe housing (1), characterized in that: The air inlet (2) of the lower air outlet pipe housing (1) is fixedly connected to the automobile air filter housing via a first connecting piece (4), and the air outlet (3) of the lower air outlet pipe housing (1) is fixedly connected to the automobile engine intake manifold via a second connecting piece (13); A reverse blocking mechanism (8) is installed on the air inlet (2) side, the reverse blocking mechanism (8) comprising a control unit (81), a rotating shaft (82) is fixedly connected to the top end of the output shaft of the control unit (81), a flap (83) is fixedly connected to the middle outer side of the rotating shaft (82), and sealing plates (84) are provided on both sides of the flap (83); A positioning ring plate (5) is fixedly connected to the inner side of the exhaust port (3); a ring groove (6) is provided on one side of the positioning ring plate (5); a special-shaped positioning ring (11) is installed inside the ring groove (6); the inner side of the special-shaped positioning ring (11) is installed inside the water absorption ring plate (9); and a disassembly hole (12) is provided on the water absorption ring plate (9) near the top of the exhaust port (3).

2. The air filter lower air outlet pipe according to claim 1, characterized in that: The lower air outlet pipe housing (1) is used for connecting to an automobile air filter housing and an automobile engine intake manifold, and a side positioning frame (7) for positioning is fixedly connected to the outer side of the lower air outlet pipe housing (1), and holes for positioning bolts to pass through are provided inside the side positioning frame (7).

3. The air filter lower outlet pipe according to claim 1, characterized in that: A plurality of disassembly holes (12) are provided, and the disassembly holes (12) are distributed in a ring shape inside the water absorption ring plate (9), and the disassembly holes (12) are arranged on the inner side of the positioning ring plate (5).

4. The air filter lower air outlet pipe according to claim 1, characterized in that: The control unit (81) comprises a water inlet detection module, a signal receiving module, a stepper motor with a self-locking function, and a signal transmitting module. The water inlet detection module is used to monitor water inlet problems at the air inlet (2). The signal receiving module is used to receive detection signals from the water inlet detection module and signals from a vehicle computer board, and to control the operation of the stepper motor. The stepper motor is used to drive the flap (83) to rotate. The signal transmitting module is used to send position information of the flap (83) to the vehicle computer board. The stepper motor is powered by a vehicle battery.

5. The air filter lower air outlet pipe according to claim 1, characterized in that: The rotating shaft (82) is rotatably connected to the lower air outlet pipe housing (1); two sealing plates (84) are provided; the two sealing plates (84) are arranged in a semicircular shape, and the sealing plates (84) are respectively arranged on both sides of the rotating shaft (82); and the sealing plates (84) are fixedly connected to the inner wall of the lower air outlet pipe housing (1).

6. The air filter lower outlet pipe according to claim 1, characterized in that: When the flap (83) seals the lower air outlet pipe housing (1), one end surface edge thereof is in close contact with one of the sealing plates (84), and the other end surface edge is in close contact with the other sealing plate (84).

7. The air filter lower air outlet pipe according to claim 1, characterized in that: The vertical cross-section of the water absorption ring plate (9) is trapezoidal on one side, and the side of the water absorption ring plate (9) provided with a disassembly hole (12) is in close contact with the positioning ring plate (5).

8. The air filter lower air outlet pipe according to claim 1, characterized in that: A clamping groove (10) and a connecting groove (14) are provided on the inner side of the edge of the water absorption ring plate (9); the clamping groove (10) and the connecting groove (14) are communicated with each other; and the special-shaped positioning ring (11) is connected to the water absorption ring plate (9) via the clamping groove (10) and the connecting groove (14).

9. The air filter lower air outlet pipe according to claim 1, characterized in that: The inner side of the special-shaped positioning ring (11) is provided with a plurality of protrusions, and the protrusions on the inner side of the special-shaped positioning ring (11) correspond one to one with the clamping grooves (10), and the clamping grooves (10) are provided with four.

Images