Air intake pipeline device and engineering machinery

Abstract

The utility model discloses an air intake pipeline device and engineering machinery, including crossbeam, the inside of crossbeam is equipped with half closed cavity, half closed cavity is fixed on the crossbeam, and the both ends of half closed cavity are equipped with circular air inlet, circular air outlet respectively, and the middle part of half closed cavity is equipped with side wall opening, and the overall appearance of half closed cavity is regular cuboid, the outside of crossbeam is equipped with prefilter, the inside of crossbeam still is equipped with rubber pipe, air cleaner, circular air inlet is outwardly through crossbeam and is connected with prefilter, and circular air outlet is connected with one end of rubber pipe, and the other end of rubber pipe is connected with air cleaner, the utility model discloses structural design is reasonable, and half closed cavity has side wall opening, and half closed cavity can also act as air intake pipeline, make that air intake cavity volume increases, can effectively reduce the fluctuation of airflow, reduce the vortex noise of air intake generation.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to an air intake pipeline device and engineering machinery. Background Technology

[0002] See Figure 1 Currently, the air intake system of micro and small excavators usually includes components such as pre-filter, connecting pipe, and air filter; among them, the front end of the air filter is mostly in the form of air intake hose (1) + air intake steel pipe (2) + pre-filter (3), which has a crossbeam (4).

[0003] The shortcomings of the existing technology are: in actual use, when air enters from the pre-filter (3) and the gas flows through the intake hose (1), the airflow rubs against the inner wall of the pipe, which easily generates noise. Moreover, when the intake hose (1) has multiple diameter changes or sudden changes, the intake vortex becomes more obvious, which in turn affects the external radiation noise and the driver's comfort in the cab. Utility Model Content

[0004] The purpose of this invention is to provide an intake pipe device and engineering machinery to reduce the vortex noise generated during air intake.

[0005] To achieve the above objectives, the present invention provides an air intake pipeline device, including a crossbeam. A semi-enclosed cavity is provided on the inner side of the crossbeam and fixed to the crossbeam. A circular air inlet and a circular air outlet are respectively provided at both ends of the semi-enclosed cavity. A side wall opening is provided in the middle of the semi-enclosed cavity. The overall shape of the semi-enclosed cavity is a regular cuboid. A pre-filter is provided on the outer side of the crossbeam, and a hose and an air filter are provided on the inner side of the crossbeam. The circular air inlet extends outward through the crossbeam and connects to the pre-filter. The circular air outlet is connected to one end of the hose, and the other end of the hose is connected to the air filter.

[0006] Furthermore, the semi-enclosed cavity extends horizontally, the circular air inlet is located at the upper right end of the semi-enclosed cavity, and the circular air outlet is located at the lower left end of the semi-enclosed cavity.

[0007] Furthermore, the pre-filter is disposed above the crossbeam, and the circular air inlet extends upward through the crossbeam and is connected to the pre-filter.

[0008] Furthermore, the air filter and the hose are located at the lower left of the semi-enclosed cavity, and the hose is a curved tube of equal diameter.

[0009] Furthermore, the sidewall opening is located on the rear sidewall in the middle of the semi-enclosed cavity.

[0010] Furthermore, the front sidewall of the middle part of the semi-enclosed cavity is provided with a groove, the groove opening faces the sidewall opening, and the sidewall opening and the groove are rectangular.

[0011] Furthermore, the semi-enclosed cavity includes a first U-shaped bend plate, a first steel pipe, a second steel pipe, a second U-shaped bend plate, and a third U-shaped bend plate. The second U-shaped bend plate is positioned above the first U-shaped bend plate, and the third U-shaped bend plate is positioned in front of and above the first U-shaped bend plate. The first steel pipe is positioned at the upper right end of the second U-shaped bend plate, and the second steel pipe is positioned at the lower left end of the first U-shaped bend plate. The circular air inlet is positioned on the first steel pipe, the circular air outlet is positioned on the second steel pipe, the side wall opening is positioned on the rear side wall of the second U-shaped bend plate, and the groove is positioned on the inner wall of the third U-shaped bend plate.

[0012] Furthermore, the first U-shaped bend plate, the second U-shaped bend plate, the third U-shaped bend plate, the first steel pipe, and the second steel pipe are assembled and welded together. The left and right sides of the first U-shaped bend plate are bent upwards, the front and rear sides of the second U-shaped bend plate are bent downwards, and the left and right sides of the third U-shaped bend plate are bent backwards.

[0013] Furthermore, the crossbeam extends horizontally, the right end of the crossbeam bends downward, and the interior of the semi-enclosed cavity is equipped with a sound-absorbing structure.

[0014] This utility model also provides an engineering machinery, including an engineering machinery body and an air intake pipe device as described in any of the above technical solutions, wherein the air intake pipe device is disposed on the engineering machinery body.

[0015] In summary, the technical solution of this utility model has the following beneficial effects: The structural design of this utility model is reasonable. By setting a crossbeam, a semi-enclosed cavity is provided on the inner side of the crossbeam. The semi-enclosed cavity is fixed on the crossbeam. The two ends of the semi-enclosed cavity are respectively provided with a circular air inlet and a circular air outlet. The middle of the semi-enclosed cavity is provided with a side wall opening. The overall shape of the semi-enclosed cavity is a regular cuboid. A pre-filter is provided on the outer side of the crossbeam, and a rubber tube and an air filter are provided on the inner side of the crossbeam. The circular air inlet extends outward through the crossbeam and is connected to the pre-filter. The circular air outlet is connected to one end of the rubber tube, and the other end of the rubber tube is connected to the air filter. Thus, a semi-enclosed cavity is designed on the inner side of the crossbeam and fixed on the crossbeam. This retains the original function of the crossbeam in bearing the weight of the machine cover without taking up additional space in the whole machine. The semi-enclosed cavity is designed with circular air inlets and outlets at both ends for connecting the hose and the pre-filter. The hose is used to connect to the air filter, and the pre-filter is located on the outside of the crossbeam. The overall shape of the semi-enclosed cavity is a regular cuboid. The semi-enclosed cavity has side wall openings and can also serve as an air intake pipeline, which increases the volume of the air intake cavity and can effectively reduce airflow fluctuations and reduce the vortex noise generated by the air intake. Attached Figure Description

[0016] Figure 1 This is a structural diagram of existing technology;

[0017] Figure 2 This is an exploded structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the semi-enclosed cavity of this utility model;

[0019] Explanation of reference numerals in the attached drawings: air inlet hose (1), air inlet steel pipe (2), pre-filter (3), crossbeam (4), semi-enclosed cavity (5), hose (6), first U-shaped bend (7), first steel pipe (8), second steel pipe (9), second U-shaped bend (10), third U-shaped bend (11); circular air inlet (501), circular air outlet (502), side wall opening (503), groove (504). Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0021] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 2When observing, the observer's left side is designated as left, the observer's right side as right, the area in front of the observer as front, the area behind the observer as back, the area above the observer as top, and the area below the observer as bottom. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this document indicate the orientation or positional relationship based on the accompanying drawings. These are merely for the purpose of clearly describing the present invention and do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0022] See Figure 2-3 This embodiment provides an air intake pipeline device, including a crossbeam 4, a semi-enclosed cavity 5 on the inner side of the crossbeam 4, the semi-enclosed cavity 5 being fixed on the crossbeam 4, a circular air inlet 501 and a circular air outlet 502 respectively at both ends of the semi-enclosed cavity 5, a side wall opening 503 in the middle of the semi-enclosed cavity 5, and the overall shape of the semi-enclosed cavity 5 being a regular cuboid; a pre-filter 3 is provided on the outer side of the crossbeam 4, and a hose 6 and an air filter are also provided on the inner side of the crossbeam 4, the circular air inlet 501 extending outward through the crossbeam 4 and connecting to the pre-filter 3, the circular air outlet 502 being connected to one end of the hose 6, and the other end of the hose 6 being connected to the air filter. Function: A semi-enclosed cavity is designed inside the crossbeam and fixed to it. This retains the original crossbeam's function of supporting the machine hood's weight without taking up additional space (i.e., this solution combines the crossbeam and the existing air intake hose 1 into one unit, improving overall space utilization). Circular air inlets and outlets are designed at both ends of the semi-enclosed cavity to connect the hose and the pre-filter. The hose connects to the air filter, which is located on the outside of the crossbeam. The semi-enclosed cavity has a regular rectangular shape with side wall openings and also functions as an air intake pipe, increasing its volume and effectively reducing airflow fluctuations and vortex noise generated during intake.

[0023] Specifically, the semi-enclosed cavity 5 extends horizontally, with a circular air inlet 501 located at the upper right end and a circular air outlet 502 located at the lower left end. This design facilitates gas flow sequentially from the upper right end, through the interior, and then to the lower left end of the semi-enclosed cavity 5. Furthermore, the increased volume of the semi-enclosed cavity 5 effectively reduces airflow fluctuations and lowers the vortex noise generated during air intake.

[0024] Specifically, the pre-filter 3 is positioned above the crossbeam 4, and the circular air inlet 501 extends upward through the crossbeam 4 and connects to the pre-filter 3. Function: Positioning the pre-filter 3 above the crossbeam 4 facilitates the absorption of air from above the crossbeam.

[0025] Specifically, the air filter and hose 6 are located at the lower left of the semi-enclosed cavity 5, and the hose 6 is a curved tube of equal diameter. Function: The hose 6 transports the gas in the semi-enclosed cavity 5 to the air filter. Compared with the prior art, this technical solution shortens the original hose length, reduces the space occupied by the hose, and the curved tube of equal diameter makes it easier to reduce the vortex noise generated by the intake air.

[0026] Specifically, the side wall opening 503 is located on the rear side wall in the middle of the semi-enclosed cavity 5. Function: This facilitates communication between the semi-enclosed cavity 5 and the rear space, thereby increasing the volume of the air intake chamber.

[0027] Specifically, the front sidewall of the middle part of the semi-enclosed cavity 5 is provided with a groove 504, the opening of the groove 504 facing the sidewall opening 503, and the sidewall opening 503 and the groove 504 are rectangular. Function: to make the sidewall opening 503 and the groove 504 fit together, making it easier for the air intake cavity to fit with the rear space to increase the volume.

[0028] Specifically, the semi-enclosed cavity 5 includes a first U-shaped bend 7, a first steel pipe 8, a second steel pipe 9, a second U-shaped bend 10, and a third U-shaped bend 11. The second U-shaped bend 10 is located above the first U-shaped bend 7, and the third U-shaped bend 11 is located in front of and above the first U-shaped bend 7. The first steel pipe 8 is located at the upper right end of the second U-shaped bend 10, and the second steel pipe 9 is located at the lower left end of the first U-shaped bend 7. A circular air inlet 501 is located on the first steel pipe 8, a circular air outlet 502 is located on the second steel pipe 9, a side wall opening 503 is located on the rear side wall of the second U-shaped bend 10, and a groove 504 is located on the inner wall of the third U-shaped bend 11. Function: The first steel pipe 8 and the second steel pipe 9 facilitate the connection of the pre-filter and the hose to the circular air inlet 501 and the circular air outlet 502. The pipeline connection method adopted in this utility model realizes the integration of local pipelines and crossbeams. The new structure saves the space occupied by the hose and realizes the arrangement of the air intake pipeline in the priority space, further reducing the noise of the air intake vortex.

[0029] Specifically, the first U-shaped bend 7, the second U-shaped bend 10, the third U-shaped bend 11, the first steel pipe 8, and the second steel pipe 9 are assembled and welded together. The left and right sides of the first U-shaped bend 7 are bent upwards, the front and rear sides of the second U-shaped bend 10 are bent downwards, and the left and right sides of the third U-shaped bend 11 are bent backwards. Function: The technical solution adopted in this utility model adds a semi-enclosed cavity 5 to the original intake pipeline, eliminating the original independent intake steel pipe 2. The semi-enclosed cavity 5 is assembled and welded together from the first U-shaped bend 7, the second U-shaped bend 10, the third U-shaped bend 11, the first steel pipe 8, and the second steel pipe 9, making the semi-enclosed cavity 5 easier to form.

[0030] Specifically, the crossbeam 4 extends horizontally, with its right end bent downwards. A sound-absorbing structure is installed inside the semi-enclosed cavity 5. Function: The bent crossbeam 4 provides better support, and a sound-absorbing structure can be designed within the semi-enclosed cavity 5 as needed.

[0031] This utility model also provides an engineering machinery, including the engineering machinery body and an air intake pipe device according to any of the above-mentioned technical solutions, wherein the air intake pipe device is disposed on the engineering machinery body. Function: The air intake pipe device of this utility model can be applied to mini and small excavators and other engineering machinery products, for example, to form a multi-purpose air intake pipe device for excavators.

[0032] In summary, this utility model can increase the intake volume and reduce the vortex noise generated by the intake by structurally designing the intake pipe, while also serving as an intake pipe, without taking up additional space in the whole machine.

[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An air intake duct arrangement comprising a cross member (4), characterised in that: The inner side of the crossbeam (4) is provided with a semi-closed cavity (5), which is fixed on the crossbeam (4). The two ends of the semi-closed cavity (5) are respectively provided with a circular air inlet (501) and a circular air outlet (502). The middle part of the semi-closed cavity (5) is provided with a side wall opening (503). The overall shape of the semi-closed cavity (5) is a regular cuboid. The outer side of the crossbeam (4) is provided with a pre-filter (3), and the inner side of the crossbeam (4) is also provided with a rubber tube (6) and an air filter. The circular air inlet (501) extends outward through the crossbeam (4) and is connected to the pre-filter (3). The circular air outlet (502) is connected to one end of the rubber tube (6), and the other end of the rubber tube (6) is connected to the air filter.

2. The air intake plumbing apparatus of claim 1, wherein: The length of the semi-enclosed cavity (5) extends from left to right. The circular air inlet (501) is located at the upper right end of the semi-enclosed cavity (5), and the circular air outlet (502) is located at the lower left end of the semi-enclosed cavity (5).

3. The air intake plumbing apparatus of claim 2, wherein: The pre-filter (3) is located above the crossbeam (4), and the circular air inlet (501) extends upward through the crossbeam (4) and is connected to the pre-filter (3).

4. The air intake plumbing apparatus of claim 3, wherein: The air filter and the hose (6) are located on the lower left side of the semi-enclosed cavity (5), and the hose (6) is a curved tube of equal diameter.

5. The air intake plumbing apparatus of claim 2, wherein: The side wall opening (503) is located on the rear side wall in the middle of the semi-enclosed cavity (5).

6. The air intake plumbing apparatus of claim 5, wherein: The front sidewall of the middle part of the semi-enclosed cavity (5) is provided with a groove (504), the groove (504) faces the sidewall opening (503), and the sidewall opening (503) and the groove (504) are rectangular.

7. The intake pipe device according to claim 6, characterized in that: The semi-enclosed cavity (5) includes a first U-shaped bend (7), a first steel pipe (8), a second steel pipe (9), a second U-shaped bend (10), and a third U-shaped bend (11). The second U-shaped bend (10) is located above the first U-shaped bend (7), and the third U-shaped bend (11) is located above and in front of the first U-shaped bend (7). The first steel pipe (8) is located at the upper right end of the second U-shaped bend (10), and the second steel pipe (9) is located at the lower left end of the first U-shaped bend (7). The circular air inlet (501) is located at the first steel pipe (8), the circular air outlet (502) is located at the second steel pipe (9), the side wall opening (503) is located at the rear side wall of the second U-shaped bend (10), and the groove (504) is located at the inner wall of the third U-shaped bend (11).

8. The intake pipe device according to claim 7, characterized in that: The first U-shaped bend (7) is assembled and welded with the second U-shaped bend (10), the third U-shaped bend (11), the first steel pipe (8), and the second steel pipe (9). The left and right sides of the first U-shaped bend (7) are bent upwards, the front and rear sides of the second U-shaped bend (10) are bent downwards, and the left and right sides of the third U-shaped bend (11) are bent backwards.

9. An intake pipe device according to any one of claims 1 to 8, characterized in that: The length of the crossbeam (4) extends from left to right, the right end of the crossbeam (4) is bent downward, and the interior of the semi-enclosed cavity (5) is provided with a sound-absorbing structure.

10. An engineering machinery, comprising an engineering machinery body, characterized in that: It also includes the air intake pipe device according to any one of claims 1 to 9, wherein the air intake pipe device is disposed on the engineering machinery body.

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