Air inlet structure of snowfield motorcycle

Abstract

An air inlet structure of a snowmobile belongs to the technical field of engine accessories. Comprising two air inlet bins and an air outlet pipe, the two air inlet bins are arranged side by side, the adjacent sides of the two air inlet bins communicate with each other, air inlets are formed in the sides, away from each other, of the two air inlet bins, and the air inlet end of the air outlet pipe communicates with the two air inlet bins at the same time. According to the air inlet structure of the snowfield motorcycle, the two air inlet bins are installed between the instrument and the engine, inlet air of the engine flows through the space between the instrument and the engine, the inlet air of the engine can be preheated, and normal work of the instrument can be prevented from being affected by the high temperature of the engine.

Description

Technical Field

[0001] The invention discloses an air intake structure for a snowmobile, belonging to the technical field of engine accessories. Background Art

[0002] Snowmobiles are vehicles designed for use on snow or other slippery surfaces. They are usually equipped with wide tracks and powerful engines to provide good traction and travel on snow. Such vehicles are widely used in winter sports, snow rescue, forestry and snow patrol.

[0003] The engine of a snowmobile is usually an internal combustion engine, and the engine of a snowmobile is usually installed on the front side. Since the engine speed of a snowmobile is very high, the temperature is very high, which can easily affect the instrumentation of the snowmobile. In addition, due to the poor driving environment of the snowmobile, it is easy for the snow to block the engine air intake, causing the engine to stall and difficult to restart, affecting the use of the snowmobile. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and to provide an air intake structure for a snowmobile which can change the flow direction of the intake air, preheat the engine intake air and avoid affecting the instrument.

[0005] The technical solution adopted by the utility model to solve the technical problem is: the air intake structure of the snowmobile is characterized by comprising an air intake bin and an air outlet pipe, there are two air intake bins arranged side by side, the adjacent sides of the two air intake bins are connected, and the sides of the two air intake bins away from each other are both provided with air inlets, and the air intake end of the air outlet pipe is connected to the two air intake bins at the same time.

[0006] Preferably, each of the air inlets is closed by a filter.

[0007] Preferably, it also includes a connecting chamber, the two ends of the connecting chamber are respectively connected to the two air inlet chambers, and the air inlet end of the air outlet pipe is connected to the connecting chamber.

[0008] Preferably, the two air inlet bins are spaced apart, and the connecting bin is located between the two air inlet bins.

[0009] Preferably, it also includes an air replenishing mechanism, and at least one air inlet bin is provided with an air replenishing mechanism.

[0010] Preferably, the air replenishing mechanism includes a sealing plate and a sealing spring, an air replenishing port is provided on the air inlet bin, the sealing plate is provided in the air inlet bin, the sealing spring is connected to the sealing plate and pushes the sealing plate to close the air replenishing port.

[0011] Preferably, the sealing plate is disc-shaped, and the diameter of the sealing plate gradually increases along the air intake direction.

[0012] Preferably, the air replenishing mechanism further comprises a guide column, the sealing plate is slidably sleeved outside the guide column, and the sealing spring is also sleeved outside the guide column.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The two air intake chambers of the air intake structure of the snowmobile are installed between the instrument and the engine. The engine air intake flows through the space between the instrument and the engine, which can not only preheat the engine air intake, but also prevent the high temperature of the engine from affecting the normal operation of the instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the air intake structure of a snowmobile;

[0016] Figure 2 is a top view schematic cross-sectional view of an air intake structure of a snowmobile;

[0017] Figure 3 is a front cross-sectional schematic diagram of an air intake structure of a snowmobile;

[0018] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0019] In the figure: 1. air inlet bin; 2. air inlet port; 3. connecting bin; 4. air outlet pipe; 5. air supply mechanism; 501. air supply port; 502. sealing plate; 503. adjusting rod; 504. sealing spring; 505. supporting ring. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0021] Figures 1 to 4 It is the best embodiment of the utility model, and the following Figures 1 to 4 The utility model is further described.

[0022] The air intake structure of the snowmobile includes an air intake chamber 1 and an air outlet pipe 4. The air intake chambers 1 are arranged side by side. The adjacent sides of the two air intake chambers 1 are connected, and the sides of the two air intake chambers 1 that are away from each other are both provided with air inlets 2. The air intake end of the air outlet pipe 4 is connected to the two air intake chambers 1 at the same time. The two air intake chambers 1 of the air intake structure of the snowmobile are installed between the instrument and the engine. The engine intake air flows through the space between the instrument and the engine, which can not only preheat the engine intake air, but also prevent the high temperature of the engine from affecting the normal operation of the instrument.

[0023] Specifically, Figure 1-2 As shown: there are two air intake bins 1 arranged side by side and at intervals, the two air intake bins 1 are arranged at intervals, a connecting bin 3 is arranged between the two air intake bins 1, and the two ends of the connecting bin 3 are respectively connected to the adjacent side of the air intake bin 1, so that the two air intake bins 1 are connected as one, and the air inlet of the air outlet pipe 4 is connected to the middle of the connecting bin 3. The two air intake bins 1 are both provided with air inlets 2 on the side away from each other, and the engine intake enters the air intake bin 1 through the air inlets 2 on both sides, and enters the air outlet pipe 4 through the connecting bin 3, and enters the engine through the air outlet pipe 4.

[0024] The air intake chamber 1 is installed between the engine and the instrument. The airflow entering the engine is preheated by the heat of the engine, and the incoming airflow can also take away the heat of the engine, avoiding the instrument being in a high temperature environment all the time and affecting the work of the instrument.

[0025] Furthermore, a filter is provided at each air inlet 2, which closes the air inlet 2 and can filter the gas entering the engine, thereby ensuring that the engine works more smoothly.

[0026] An air replenishing mechanism 5 is disposed in at least one air intake bin 1 . In the present embodiment, an air replenishing mechanism 5 is disposed in one and only one air intake bin 1 , and the air replenishing mechanism 5 is disposed at the bottom of the air intake bin 1 .

[0027] The air replenishing mechanism 5 can realize the air replenishing function, that is, after the air inlet 2 is blocked by snow, the air replenishing mechanism 5 can automatically open under negative pressure, thereby realizing the air replenishing function and ensuring that the engine can work and start smoothly.

[0028] like Figure 3-4 As shown: the air replenishing mechanism 5 includes a sealing plate 502 and a sealing spring 504. An air replenishing port 501 is arranged at the bottom of the air inlet bin 1. The diameter of the top of the air replenishing port 501 gradually increases from bottom to top. The sealing plate 502 is arranged in the air inlet bin 1. The sealing plate 502 is disc-shaped, and the diameter of the sealing plate 502 gradually increases from bottom to top. The sealing spring 504 is connected to the sealing plate 502 and pushes the sealing plate 502 into the upper part of the air replenishing port 501, thereby closing the air replenishing port 501.

[0029] During normal operation, the sealing spring 504 pushes the sealing plate 502 to close the air supply port 501, and the air enters the air intake chamber 1 from the air intake port 2. When the air intake port 2 is blocked, the operation of the engine will cause a slight negative pressure to be generated in the air intake chamber 1, thereby causing the sealing plate 502 to open the air supply port 501, and then air is supplied through the air supply port 501 to ensure normal operation and starting of the engine.

[0030] The air replenishment mechanism 5 also includes a guide column, which is cylindrical, one end of which extends into the air replenishment port 501 and is fixedly connected to the inner wall of the air replenishment port 501 through a mounting rod, and a plurality of mounting rods are arranged around the guide column at intervals. The sealing plate 502 is slidably sleeved outside the guide column, and the sealing spring 504 is also sleeved outside the guide column.

[0031] The air replenishing mechanism 5 also includes an adjusting rod 503 and a supporting ring 505. The guide column is cylindrical and has an opening on one side of the guide column. The upper end of the adjusting rod 503 can be slidably arranged in the guide column, and the lower end extends out of the guide column and is threadedly connected with an adjusting nut. An inner convex portion is arranged on the supporting ring 505, and the inner convex portion can slide through the opening and be fixedly connected to the upper end of the adjusting rod 503. The lower end of the sealing spring 504 is supported on the sealing plate 502, and the upper end is supported on the supporting ring 505.

[0032] By turning the adjusting nut, the position of the support ring 505 can be adjusted, and then the compression amount of the sealing spring 504 can be adjusted to adjust the pressure at which the air supply port 501 is opened.

[0033] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. The air intake structure of a snowmobile is characterized by: It comprises an air inlet bin (1) and an air outlet pipe (4), wherein the air inlet bins (1) are arranged side by side, the adjacent sides of the two air inlet bins (1) are connected, and the sides of the two air inlet bins (1) that are away from each other are both provided with an air inlet (2), and the air inlet end of the air outlet pipe (4) is connected to the two air inlet bins (1) at the same time.

2. The air intake structure of a snowmobile according to claim 1, characterized in that: Each of the air inlets (2) is closed by a filter.

3. The air intake structure of a snowmobile according to claim 1, characterized in that: It also comprises a connecting chamber (3), the two ends of the connecting chamber (3) being respectively connected to the two air inlet chambers (1), and the air inlet end of the air outlet pipe (4) being connected to the connecting chamber (3).

4. The air intake structure of a snowmobile according to claim 3, characterized in that: The two air inlet bins (1) are arranged at an interval, and the connecting bin (3) is located between the two air inlet bins (1).

5. The air intake structure of a snowmobile according to claim 1, characterized in that: It also comprises an air replenishing mechanism (5), and at least one air inlet bin (1) is provided with the air replenishing mechanism (5).

6. The air intake structure of a snowmobile according to claim 5, characterized in that: The air replenishing mechanism (5) comprises a sealing plate (502) and a sealing spring (504); an air replenishing port (501) is provided on the air intake bin (1); the sealing plate (502) is provided in the air intake bin (1); the sealing spring (504) is connected to the sealing plate (502) and pushes the sealing plate (502) to close the air replenishing port (501).

7. The air intake structure of a snowmobile according to claim 6, characterized in that: The sealing plate (502) is disc-shaped, and the diameter of the sealing plate (502) gradually increases along the air intake direction.

8. The air intake structure of a snowmobile according to claim 6, characterized in that: The air replenishing mechanism (5) further comprises a guide column, the sealing plate (502) is slidably sleeved outside the guide column, and the sealing spring (504) is also sleeved outside the guide column.

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