Air filter waterproof cap convenient to assemble

Abstract

An air filter waterproof cap convenient to assemble comprises a cover cap, a barrel and an air inlet grid, the air inlet grid is arranged at one end of the barrel and integrally formed with the barrel, the cover cap covers the air inlet grid and is connected with the air inlet grid in a clamped mode, a clamping groove is formed in the air inlet grid, a buckle is arranged on the inner wall of the cover cap, the cover cap is a circular-truncated-cone-shaped shell, and a positioning ring is arranged on the inner wall of the cover cap. The cover cap, the cylinder body and the air inlet grid are all made of plastic materials, and a plurality of reinforcing ribs are arranged on the inner wall of the cylinder body. Compared with the prior art, the utility model has the advantages of fast assembly, simple process and low production cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine air intake systems, and in particular relates to an air filter waterproof cap which is easy to assemble. Background Art

[0002] The air filter waterproof cap is a sealed device installed at the air inlet of the air filter of a car, etc. It can effectively prevent rainwater, sewage or dust and other impurities from entering the interior of the air filter, thereby ensuring the cleanliness and smoothness of the engine intake duct, protecting the engine and hydraulic system from external impurities, and helping to extend the service life of the engine and hydraulic system. The air filter waterproof cap is usually composed of three parts: a cap, an air intake grid, and a barrel. In the prior art, the air intake grid and the cap are integrated, and the cap and the barrel are fixedly connected by a clamp. This assembly method is inefficient, and the production of the barrel requires first forming two sections of cylindrical metal cylinders and one section of truncated cone-shaped metal cylinder by sheet metal stamping, and then welding the three sections of metal barrels. The process is relatively complicated, which greatly prolongs the production cycle. Utility Model Content

[0003] The utility model aims to provide an air filter waterproof cap which has the advantages of quick assembly, simple process and low production cost.

[0004] The invention discloses an air filter waterproof cap which is easy to assemble, comprising a cover cap, a cylinder and an air intake grid, and is characterized in that the air intake grid is arranged at one end of the cylinder and is integrally formed with the cylinder, and the cover cap covers the air intake grid and is snap-connected with the air intake grid.

[0005] Preferably, a slot is provided on the air inlet grille, and a buckle is provided on the inner wall of the cap.

[0006] Preferably, the cap is a truncated cone-shaped shell.

[0007] Preferably, a positioning ring is provided on the inner wall of the cap.

[0008] Preferably, the cap, the cylinder and the air inlet grid are all made of plastic.

[0009] Preferably, the inner wall of the cylinder is provided with a plurality of reinforcing ribs.

[0010] Compared with the prior art, the beneficial effect of the utility model is that during the production and assembly process, the cylinder and the air grid are integrally formed by an injection mold, and then the cap and the air grid are quickly fixed by snap connection, which greatly simplifies the production and assembly process, saves labor and time costs, improves assembly efficiency, and shortens the assembly cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 is a schematic diagram of the three-dimensional structure of the cap;

[0013] Figure 3 It is a structural schematic diagram of the cylinder and air intake grid assembly.

[0014] Explanation of reference numerals: 1 cap, 2 cylinder, 3 air intake grid, 4 slot, 5 buckle, 6 positioning ring. DETAILED DESCRIPTION

[0015] Embodiment 1, below with reference to Figure 1-3 The utility model is further described as an air filter waterproof cap that is easy to assemble, comprising a cap 1, a cylinder 2 and an air intake grille 3, all of which are made of plastic, which is conducive to cost saving, energy saving and environmental protection; the middle part of the cylinder is truncated cone-shaped, and the two ends are cylindrical, and a cavity is defined inside the cylinder, and both ends of the cylinder are open, one end is an air inlet, and the other end is an air outlet. Since the cylinder is made of plastic material, the structural strength of the cylinder itself is not high, and several reinforcing ribs can be arranged in a ring on the inner wall of the cylinder to increase the structural strength of the cylinder; an air intake grille is provided at one end of the cylinder air inlet, and the air intake grille is integrally formed with the cylinder, and the air intake grille is composed of a plurality of grid plates arranged at intervals. and a ring sheet, one end of the grating is connected to the air inlet, and the other end is connected to the ring sheet. The grating can be set to various shapes such as long strips and triangles. A card slot 4 is provided on the edge of the ring sheet, and a base is provided at the bottom; the cap is a truncated cone-shaped shell, which is convenient for dust and rain protection and drainage. The cap completely covers the air inlet grid, and a buckle 5 is provided on the inner wall of the cap. The buckle is a plastic part with a certain elasticity. Preferably, the number of buckles is set to 6, and the shape of the buckle is an inverted cone. The air inlet grid is connected to the cap through the cooperation of the card slot and the buckle. A positioning ring 6 is provided on the inner wall of the cap, and the positioning ring is plugged into the base. The positioning ring can limit the air inlet grid, which is convenient and quick to achieve the snap connection.

[0016] The specific operation method and principle are as follows: during the assembly process of the cap and the air grid, align the positioning ring of the cap with the base of the air grid, apply a certain force to insert the base into the positioning ring, limit the movement of the cap so that it can only move up and down, and then continue to apply a certain force to push the cap toward the air grid. During the pushing process, the buckle will encounter some resistance and undergo a certain elastic deformation. When the buckle completely enters the slot, it will bounce back to the preset position. At this time, the buckle and the slot are locked with each other to form a stable connection, thereby achieving the fixation of the cap and the air grid.

Claims

1. An air filter waterproof cap that is easy to assemble, comprising a cap (1), a cylinder (2) and an air intake grid (3), characterized in that: The air intake grid is arranged at one end of the cylinder body and is formed integrally with the cylinder body; the cover cap covers the air intake grid and is snap-connected with the air intake grid.

2. The air filter waterproof cap that is easy to assemble according to claim 1, characterized in that: The air intake grid is provided with a slot (4), and the cover cap is provided with a buckle (5).

3. An air filter waterproof cap that is easy to assemble according to claim 1 or 2, characterized in that: A positioning ring (6) is provided on the inner wall of the cap.

4. The air filter waterproof cap that is easy to assemble according to claim 1, characterized in that: The cover cap is a truncated cone-shaped shell.

5. The air filter waterproof cap that is easy to assemble according to claim 1, characterized in that: The cap, cylinder and air intake grille are all made of plastic.

6. The air filter waterproof cap that is easy to assemble according to claim 5, characterized in that: The inner wall of the cylinder is provided with several reinforcing ribs.

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