Waterproof air filter air inlet pipe

Abstract

The utility model provides a waterproof air filter air inlet pipe which comprises an air inlet pipe, the end portion of the air inlet end of the air inlet pipe is horizontally arranged and forms a horizontal portion, a lower half pipe of the horizontal portion is of a noise elimination structure, grid holes are evenly distributed in the lower half pipe, and sinking grooves are formed in the areas, corresponding to the grid holes, of the inner wall of the lower half pipe. Sheet-shaped sound-absorbing cotton is fixedly arranged in the sinking groove, and the sound-absorbing cotton is attached to the bottom face of the sinking groove and covers the grid holes. The end portion of the air inlet end of the air inlet pipe is arranged to be the horizontal portion, the noise elimination structure is arranged at the bottom of the horizontal portion, and meanwhile the sound absorption cotton is fixed in the sinking groove in the inner wall of the horizontal portion and corresponds to the grid holes, so that rainwater can be effectively prevented from entering the grid holes upwards and wetting the sound absorption cotton; the device is simple and compact in structure and stable and reliable in function.

Description

Technical Field

[0001] The utility model relates to an air filter intake pipe, in particular to a waterproof air filter intake pipe. Background Art

[0002] The air intake pipe of the automobile air filter is generally fixedly installed in the engine cabin. In order to make the air intake pipe have a silencing function, mesh holes and sound-absorbing cotton are set on the air intake pipe. However, in order to prevent water and dust from hardening the sound-absorbing cotton and affecting the function of the sound-absorbing cotton; Authorization announcement number CN210460907U discloses a dustproof and waterproof structure for the air intake pipe of the air filter, which discloses a method of wrapping the mesh holes and sound-absorbing cotton with rainproof cloth. Although it prevents rain from wetting the sound-absorbing cotton, such wrapping increases the volume of the air intake pipe, which is not convenient for arrangement in the compact engine cabin. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a waterproof air filter intake pipe, the purpose of which is to simplify the intake pipe structure and ensure the waterproof effect of the intake pipe.

[0004] A waterproof air filter intake pipe comprises an intake pipe, the intake end of the intake pipe is horizontally arranged to form a horizontal part, the lower half of the horizontal part is a sound-absorbing structure, grid holes are evenly distributed on the lower half, and a sink groove is opened on the inner wall of the lower half of the pipe in the area corresponding to the grid holes, and a sheet of sound-absorbing cotton is fixedly arranged in the sink groove, and the sound-absorbing cotton is attached to the bottom surface of the sink groove and covers the grid holes.

[0005] Furthermore, the lower half tube is a flat structure, and the area of ​​the grid holes is located on the bottom surface of the lower half tube.

[0006] Furthermore, the thickness of the sound-absorbing cotton matches the depth of the sink groove, so that the side edges of the inner surface of the sound-absorbing cotton overlap with the corresponding side edges of the sink groove notch.

[0007] Furthermore, the horizontal part is formed by connecting the upper half pipe and the lower half pipe, and the gas channel in the horizontal part is an L-shaped structure.

[0008] Further, a support frame is arranged on the inner wall of the upper half pipe at the air inlet port, the upper part of the support frame is integrally connected with the top surface of the inner wall of the upper half pipe, and the lower part of the support frame abuts against the lower half pipe.

[0009] Further, fixed ear plates are fixedly arranged at the corners of the L-shaped structure and at the opposite sides of the corners, and the fixed ear plates are close to the air inlet of the horizontal part and are arranged horizontally.

[0010] Further, the air outlet end of the horizontal part is fixedly connected to the bellows, and the horizontal part is sleeved on a first plug sleeve integrally arranged on the bellows through a plug connector; the plug connector is integrally arranged on the upper half pipe, and the lower half pipe is overlapped at one end of the plug connector and fits therewith.

[0011] Furthermore, the front end and the rear end of the corrugated pipe are corrugated sections, the middle part of the corrugated pipe is arranged as a bending pipe which is not a corrugated section, and the bending pipe is made of an elastomeric plastic material.

[0012] Further, the air outlet end of the bellows is integrally provided with a second plug sleeve or a second plug connector.

[0013] The beneficial effects of the utility model are as follows: by setting the air inlet end of the air inlet pipe as a horizontal part, and setting the sound-absorbing structure at the bottom of the horizontal part, and fixing the sound-absorbing cotton in the sink groove on the inner wall of the horizontal part and corresponding to the grid hole, it can effectively prevent rainwater from entering the grid hole upward and wetting the sound-absorbing cotton; the utility model has a simple and compact structure, and stable and reliable functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the horizontal part;

[0016] Figure 3 It is a schematic diagram of the structure of the upper half pipe;

[0017] Figure 4 It is a schematic diagram of the structure of the lower half pipe;

[0018] Figure 5 It is a schematic diagram of the structure of the grid holes and sinks in the lower half of the pipe;

[0019] Figure 6 This is a schematic diagram of the structure of sound-absorbing cotton. DETAILED DESCRIPTION

[0020] The utility model is described in detail below in conjunction with the accompanying drawings. The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be interpreted as limiting the utility model. The directional terms such as left, middle, right, top, and bottom in the embodiments of the utility model are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0021] A waterproof air filter intake pipe, including an intake pipe, such as Figures 1 to 4As shown, the air inlet end of the air inlet pipe is horizontally arranged to form a horizontal part 1, and the horizontal part 1 is formed by connecting the upper half pipe 11 and the lower half pipe 12. The gas channel in the horizontal part 1 is an L-shaped structure. In order to facilitate the fixed connection of the horizontal part, fixed ear plates 113 are fixedly arranged at the corners of the L-shaped structure and the opposite sides of the opposite corners. The fixed ear plates 113 are all close to the air inlet of the horizontal part 1 and are horizontally arranged. In order to facilitate the maintenance of the silencer structure, it is best to arrange the fixed ear plates 113 on the upper half pipe 11; the lower half pipe 12 of the horizontal part 1 is a silencer structure, and the lower half pipe 12 is evenly distributed with grid holes 121, combined with Figure 5 and Figure 6 As shown, a sink groove 123 is provided on the inner wall of the lower half pipe 12 in an area corresponding to the grid hole 121, and a sheet of sound-absorbing cotton 122 is fixedly arranged in the sink groove 123. The sound-absorbing cotton 122 is attached to the bottom surface of the sink groove 123 and covers the grid hole 121. The thickness of the sound-absorbing cotton 122 matches the depth of the sink groove 123, so that the side edges of the inner surface of the sound-absorbing cotton 122 coincide with the corresponding side edges of the notch of the sink groove 123, thereby preventing the side edges of the sound-absorbing cotton 122 from increasing the air resistance in the channel at the air inlet; the lower half pipe 12 is a flat structure, and the area of ​​the grid hole 121 is located on the bottom surface of the lower half pipe 12, which ensures the area of ​​the air inlet while facilitating the installation of the horizontal part 1 in the cabin. At the same time, the grid hole 121 is arranged on the bottom surface of the flat structure, which can more effectively prevent rainwater from entering the grid hole 121 upward and wetting the sound-absorbing cotton 122.

[0022] Among them, in order to improve the structural strength of the air inlet, a support frame 114 is arranged on the inner wall of the upper half tube 11 at the air inlet port, the upper part of the support frame 114 is integrally connected with the top surface of the inner wall of the upper half tube 11, and the lower part of the support frame 114 abuts against the bottom surface of the inner wall of the lower half tube 12 and is clamped therewith.

[0023] In addition, if Figure 1 As shown, the air outlet end of the horizontal part 1 is fixedly connected to the bellows 2. To facilitate the plugging of the two, the horizontal part 1 is sleeved in the first plug sleeve 22 integrally provided on the bellows 2 through the plug connector 111. To facilitate the plugging of the first plug sleeve 22 and the plug connector 111, a card slot 221 is provided along the circumference of the first plug sleeve 22, and a card platform 112 is integrally provided at a position corresponding to the card slot 221 on the plug connector 111. After the first plug sleeve 22 and the plug connector 111 are sleeved, the card platform 112 is plugged into the card slot 221. The joint 111 is integrally arranged on the upper half pipe 11, and the lower half pipe 12 is overlapped at one end of the plug joint 111 and fits therewith; to facilitate the arrangement of the bellows 2 in the cabin, the front end and the rear end of the bellows 2 are corrugated sections, and the middle part of the bellows 2 is arranged as a non-corrugated section bent pipe 21, and the bent pipe 21 is made of elastomeric plastic material to adapt to the space changes in the cabin; to facilitate the connection of the bellows 2 with the air filter, the air outlet end of the bellows 2 is integrally provided with a second plug joint or a second plug sleeve.

[0024] During operation, under the action of negative pressure, air flows from the air inlet of the air inlet pipe through the horizontal part 1 and the corrugated pipe 2 in sequence. At the horizontal part 1, part of the air enters the air inlet pipe through the mesh holes 121 and the sound-absorbing cotton 122. The sound-absorbing cotton 122 absorbs and reduces the air noise at the air inlet end of the air inlet pipe.

[0025] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A waterproof air filter intake pipe, characterized in that: It includes an air intake pipe, the air intake end of the air intake pipe is horizontally arranged to form a horizontal part, the lower half of the horizontal part is a sound-absorbing structure, grid holes are evenly distributed on the lower half, a sink groove is opened on the inner wall of the lower half corresponding to the grid holes, a sheet of sound-absorbing cotton is fixed in the sink groove, and the sound-absorbing cotton is attached to the bottom surface of the sink groove and covers the grid holes.

2. The waterproof air filter intake pipe according to claim 1, characterized in that: The lower half pipe is a flat structure, and the area of ​​the grid holes is located on the bottom surface of the lower half pipe.

3. The waterproof air filter intake pipe according to claim 1 or 2, characterized in that: The thickness of the sound-absorbing cotton matches the depth of the sink groove, so that the side edges of the inner surface of the sound-absorbing cotton coincide with the corresponding side edges of the notch of the sink groove.

4. The waterproof air filter intake pipe according to claim 1 or 2, characterized in that: The horizontal part is formed by connecting an upper half pipe and a lower half pipe, and the gas channel in the horizontal part is an L-shaped structure.

5. The waterproof air filter intake pipe according to claim 4, characterized in that: A support frame is arranged on the inner wall of the upper half pipe at the air inlet port, the upper part of the support frame is integrally connected with the top surface of the inner wall of the upper half pipe, and the lower part of the support frame abuts against the lower half pipe.

6. The waterproof air filter intake pipe according to claim 4, characterized in that: Fixed ear plates are fixedly arranged at the corners of the L-shaped structure and at the opposite sides of the opposite corners. The fixed ear plates are close to the air inlet of the horizontal part and are arranged horizontally.

7. The waterproof air filter intake pipe according to claim 4, characterized in that: The air outlet end of the horizontal part is fixedly connected to the bellows, and the horizontal part is sleeved on the first plug sleeve integrally arranged on the bellows through a plug connector; the plug connector is integrally arranged on the upper half pipe, and the lower half pipe is overlapped at one end of the plug connector and fits therewith.

8. The waterproof air filter intake pipe according to claim 7, characterized in that: The front end and the rear end of the corrugated pipe are corrugated sections, the middle part of the corrugated pipe is arranged as a bending pipe of a non-corrugated section, and the bending pipe is made of an elastomeric plastic material.

9. The waterproof air filter intake pipe according to claim 7, characterized in that: The air outlet end of the corrugated pipe is integrally provided with a second plug sleeve or a second plug connector.

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