Staggered connecting device of air filter

Abstract

The utility model provides an air filter dislocation connecting device which comprises a prefilter and an air filter, the prefilter is provided with a first air inlet end and a first air outlet end, the air filter is provided with a second air inlet end, a box body is arranged between the first air outlet end and the second air inlet end, an air inlet pipe is arranged on one side of the upper surface of the box body, and an air outlet pipe is arranged on the other side of the upper surface of the box body. The air inlet pipe is connected with the first air outlet end, the other side of the lower surface of the box body is connected with the second air inlet end, connection is firm, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine air filter, specifically relates to an air filter staggered connecting device. BACKGROUND

[0002] The engine is widely applied in engineering machinery as an important driving mechanism, is also widely applied in agricultural equipment such as bulldozer, air needs to be inhaled when the engine works, and dust or other impurities are usually accompanied in air, if impurities do not pass through filter and directly enter the inside of engine, can cause serious damage to engine, so air needs to be filtered before entering the engine, during the process of filtering, prefilter and filter cleaner are usually arranged, the main function of prefilter is to filter out the big particle impurities such as leaves and paper scraps in air, and filter cleaner is to further filter the small particle such as dust and pollen in air, and prefilter and filter cleaner are connected through the hose with elbow due to the limited connection position, and stress concentration is formed at the elbow.

[0003] As disclosed in the patent document with patent application number 202021010992.3 and publication date of 2021.01.15, an engine air filter air duct includes nylon rotational molding U-shaped pipe and Z-shaped pipe, both ends of the U-shaped pipe are air inlet ends, the angle formed by the air inlet end and the U-shaped pipe itself is a right angle, the inner wall is a circular arc, and the air inlet end is connected with the air outlet of the air filter; The bottom of the U-shaped pipe is provided with an air outlet end, the air outlet end is perpendicular to the U-shaped pipe and parallel to the air inlet end, and the inner diameter of the air outlet end is larger than that of the air inlet end; The air outlet end is connected with the Z-shaped pipe through a hose, and the Z-shaped pipe is connected with a supercharger; The two angles at both ends of the Z-shaped pipe are both 110-160°, the engine air duct is two-section type, convenient to assemble, each section can be directly formed, and the cost is reduced; The air duct joint reduces, the sealing performance is enhanced, the air duct noise is refracted and absorbed through the angle, and obvious attenuation is obtained.

[0004] Due to the position limitation of the air filter, the outlet of the air filter and the connecting pipeline are not in a straight line, so that the Z-shaped pipe is used to realize the connection, the U-shaped pipe and the Z-shaped pipe composed of nylon rotational molding are arranged, the U-shaped pipe and the Z-shaped pipe are connected through the hose, the U-shaped pipe and the Z-shaped pipe are both provided with the elbow, when air passes through the elbow of the pipeline, due to the change of air flow direction, additional force is generated at the elbow, if the additional force exceeds the bearing capacity of the material, the pipeline may be deformed, and when the pipeline is deformed, the connection between the pipelines may be loose, so that the pipeline falls off, and accidents occur. SUMMARY

[0005] The utility model provides a kind of air filter staggered connecting device, and it is firm in connection, long in service life.

[0006] In order to achieve the above object, the technical scheme of the utility model is: a filter mismatched connecting device, including prefilter and air cleaner, the prefilter is provided with first air inlet end and first air outlet end, the air cleaner is provided with second air inlet end, the first air outlet end and second air inlet end between the box is provided with, the box upper surface one side is provided with air inlet pipe, the air inlet pipe is connected with first air outlet end, the box lower surface other side is connected with second air inlet end, the cross section area of box is greater than the cross section area of first air inlet end, and first air outlet end and second air inlet end are spaced apart.

[0007] The above setting, the first outlet end of the prefilter and the second air inlet end of the air cleaner are connected, in order to avoid the pipeline to be provided with a bend, therefore the first outlet end of the prefilter is connected with the second air inlet end of the air cleaner through the box, and the first outlet end of the prefilter is connected with the upper surface one side of the box, the box is more convenient to arrange than the hose body, the second air inlet end of the air cleaner is connected with the lower surface other side of the box, the air flows from the first outlet end to the second air inlet end, needs to flow through the other side of the box from the one side of the box, the air will not directly flow from the first outlet end to the second air inlet end, and then a buffer area is provided for the air flowing into the second air inlet end, since the air enters into the box from the first outlet end, the air entering into the box can expand into a larger space, so that the entering area is increased, and the pressure in the box is reduced under the condition that the pressure remains unchanged, the pressure reduction treatment of the air flowing into the second air inlet end is completed, so that the air entering the air cleaner can more easily meet the demand.

[0008] Further, the box is a cuboid structure.

[0009] The above setting, the box is a cuboid structure, simple structure, easy to arrange between the prefilter and the air cleaner.

[0010] Further, the first air outlet end and the second air inlet end are staggered along the length direction of the box.

[0011] The above setting, since the first air outlet end and the second air inlet end are staggered, on the one hand, the air flow track in the box can be prolonged, so that the airflow is mixed and the pressure in the box is reduced, on the other hand, the installation space occupied by direct connection can be reduced.

[0012] Further, the box is hollow inside.

[0013] The above setting, the box is hollow inside, can accommodate more air, so that the air flows from one side of the box to the other side of the box, and the pressure reduction effect is better.

[0014] Further, a fastener is arranged between the air inlet pipe and the first air outlet end.

[0015] The above arrangement is provided with a fastener such as a clamp so that the pre-filter can be firmly connected to the box.

[0016] Furthermore, the box body is made of stainless steel.

[0017] With the above settings, stainless steel has high strength and hardness, which enables the stainless steel box to withstand greater pressure and impact, ensuring safety and stability during use.

[0018] Furthermore, two or more mounting members are provided on both sides of the box.

[0019] The above arrangement makes it easy to install the box on the hood of the bulldozer through the mounting parts, thereby avoiding vibration caused by the pressure generated during air intake and increasing the stability of the box.

[0020] Furthermore, the mounting member includes a vertical member and a horizontal member, one end of the vertical member is fixedly connected to one end of the horizontal member, and the other end of the vertical member is connected to the side of the box body. A fixing hole is provided on the horizontal member, and the horizontal member and the vertical member are vertically arranged.

[0021] With the above arrangement, the horizontal member and the vertical member form an L-shaped mounting member, so that the box body can be mounted on the hood by setting screws in the fixing holes.

[0022] Furthermore, the outer peripheral wall of the first air inlet end is provided with two or more filter holes evenly spaced along the outer peripheral wall.

[0023] The above arrangement allows air to be sent into the pre-filter from the outside through the filter holes on the outer peripheral wall of the first air inlet end, so that the air does not enter the box vertically, and the air entering the box from all directions can be better mixed. Since the first air outlet end and the second air inlet end are staggered, air can be better discharged from the second air inlet end. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the main view of the utility model.

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0026] Figure 3 This is another perspective view of the present invention.

[0027] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0028] Explanation of the accompanying figures: 1-pre-filter; 11-first air inlet end; 111-filter hole; 12-first air outlet end; 2-housing; 21-mounting part; 211-vertical part; 212-horizontal part; 2110-fixing hole; 3-air filter; 31-second air inlet end; 4-fastener; 5-engine. DETAILED DESCRIPTION

[0029] Example 1.

[0030] like Figures 1-4 As shown, an air filter staggered connection device includes a pre-filter 1 and an air filter 3, the pre-filter 1 is provided with a first air inlet end 11 and a first air outlet end 12, the air filter 3 is provided with a second air inlet end 31, a box body 2 is provided between the first air outlet end 12 and the second air inlet end 31, an air inlet pipe is provided on one side of the upper surface of the box body 2, the air inlet pipe is connected to the first air outlet end 12, and the other side of the lower surface of the box body 2 is connected to the second air inlet end 31, the first outlet end of the pre-filter 1 and the second air inlet end 31 of the air filter 3 are connected, and the outer peripheral wall of the first air inlet end 11 is provided with more than two filter holes 111 evenly spaced along the outer peripheral wall.

[0031] In order to avoid having a bend in the pipeline, the first outlet end of the pre-filter 1 is connected to the second air inlet end 31 of the air filter 3 through the box body 2, and the first outlet end of the pre-filter 1 is connected to one side of the upper surface of the box body 2. The box body 2 is more convenient to arrange than the flexible pipe body. The second air inlet end 31 of the air filter 3 is connected to the other side of the lower surface of the box body 2. The air enters the pre-filter 1 from the first air inlet end 11, and then flows from the first outlet end to the second air inlet end 31. It needs to flow from one side of the box body 2 through the other side of the box body 2. The air will not flow directly from the first outlet end to the second air inlet end 31, and then a buffer area is formed for the air flowing into the second air inlet end 31, completing the pressure reduction treatment of the air flowing into the second air inlet end 31, so that the air entering the air filter 3 is easier to meet the demand.

[0032] like Figures 1-2 As shown, the box body 2 is a rectangular parallelepiped structure, which has a simple structure and is easy to be arranged between the pre-filter 1 and the air filter 3.

[0033] The first air outlet end 12 and the second air inlet end 31 are staggered along the length direction of the box body 2, extending the air flow trajectory in the box body 2, so that the air flow is mixed in the box body and the pressure in the box body is reduced. On the other hand, it can reduce the large installation space required due to direct connection.

[0034] like Figures 3-4 As shown, the interior of the box body 2 is hollow, and the hollow interior of the box body 2 can accommodate more air, so that the air flows from one side of the box body 2 to the other side of the box body 2, thereby providing a better pressure reduction effect.

[0035] The fastener 4 is arranged between the air inlet pipe and the first air outlet end 12, such as a clamp, so that the pre-filter 1 can be stably connected with the box 2.

[0036] The box 2 is made of stainless steel, which has high strength and hardness, so that the stainless steel box 2 can withstand greater pressure and impact, ensuring safety and stability during use.

[0037] As shown in Figure 4 Two or more mounting members 21 are arranged on both sides of the box 2, the mounting member 21 includes a vertical member 211 and a horizontal member 212, one end of the vertical member 211 is fixedly connected with one end of the horizontal member 212, the other end of the vertical member 211 is connected with the side surface of the box 2, the horizontal member 212 is provided with a fixing hole 2110, and the horizontal member 212 and the vertical member 211 are arranged vertically.

[0038] The working principle of the utility model is: the pre-filter 1 and the air filter 3 are arranged on the engine 5, the first outlet end of the pre-filter 1 is connected with the second air inlet end 31 of the air filter 3, in order to avoid the pipeline being provided with a bend, therefore the first outlet end of the pre-filter 1 is connected with the second air inlet end 31 of the air filter 3 through the box 2, and the first outlet end of the pre-filter 1 is connected with one side of the upper surface of the box 2, the box 2 is more convenient to arrange compared with the hose body, the second air inlet end 31 of the air filter 3 is connected with the other side of the lower surface of the box 2, air enters the pre-filter 1 from the first air inlet end 11, air flows to the second air inlet end 31 from the first outlet end, needs to flow through the box 2 from one side of the box 2 to the other side of the box 2, air cannot directly flow to the second air inlet end 31 from the first outlet end, and then a buffer area is formed for the air flowing into the second air inlet end 31, air pressure reduction treatment is completed for the air flowing into the second air inlet end 31, so that the air entering the air filter 3 can more easily meet the demand.

Claims

1. An air filter staggered connection device, comprising a pre-filter and an air cleaner, the pre-filter is provided with a first air inlet end and a first air outlet end, the air cleaner is provided with a second air inlet end, characterized in that: The first air outlet end and the second air inlet end are provided with a box, the upper surface of the box is provided with an air inlet pipe, the air inlet pipe is connected with the first air outlet end, the lower surface of the box is connected with the second air inlet end, the cross-sectional area of the box is larger than that of the first air inlet end, and the first air outlet end and the second air inlet end are arranged at intervals.

2. The air filter misalignment coupling device of claim 1, wherein: The box is a cuboid structure.

3. The air filter misalignment coupling device of claim 1, wherein: The first air outlet end and the second air inlet end are staggered along the length direction of the box.

4. The air filter misalignment coupling device of claim 1, wherein: The box is hollow inside.

5. The air filter misalignment coupling device of claim 1, wherein: The air inlet pipe and the first air outlet end are provided with a fastener.

6. The air filter misalignment coupling device of claim 1, wherein: The box is made of stainless steel.

7. The air filter misalignment coupling device of claim 1, wherein: Two or more mounting members are arranged on both sides of the box.

8. The air filter misalignment coupling device of claim 7, wherein: The mounting member comprises a vertical member and a horizontal member, one end of the vertical member is fixedly connected with one end of the horizontal member, the other end of the vertical member is connected with the side surface of the box, the horizontal member is provided with a fixing hole, and the horizontal member and the vertical member are arranged perpendicularly.

9. The air filter misalignment coupling device of claim 1, wherein: Two or more filtering holes are arranged on the outer side wall of the first air inlet end and are uniformly and spacedly arranged along the outer side wall.

Images