Coil plastic cap for air conditioner

Abstract

The coil plastic cap for the air conditioner comprises a dustproof cap body, the dustproof cap body comprises a sealing cover located at the top, the lower end of the sealing cover is sequentially connected with an outer cap body and an inner cap body outwards in the annular direction, the cross section of the outer cap body is annular, and the outer cap body is inwards contracted from top to bottom. The inner cap body is an annular body and lightly extends outwards from top to bottom, so that an annular containing space with a radial gap gradually increased from bottom to top is formed between the inner cap body and the inner cap body, and an air conditioner pipeline port is embedded and contained in the annular containing space. According to the coil plastic cap for the air conditioner, the outer cap body which is contracted inwards from top to bottom and is of the annular body and the inner cap body which is slightly contracted outwards from top to bottom and is of the annular body are arranged, and the outer cap body and the inner cap body are both made of materials with deformation recovery, so that a radial gap formed between the outer cap body and the inner cap body can be used for embedding and fastening a port of an air conditioner pipeline; and meanwhile, the lower part of the outer cap body is made of a magnet material, so that the plastic cap is further fastened.

Description

Technical Field

[0001] This utility model relates to the field of dust prevention technology for automotive air conditioning, specifically a plastic cap for an air conditioning coil. Background Technology

[0002] The plastic caps on automotive air conditioning coils are commonly known as valve core dust caps or air conditioning pipe dust caps. They are primarily used to protect the valve cores and connectors in the air conditioning system. These accessories protect the air conditioning pipe ports, preventing dust, debris, or moisture from entering the pipes, thus protecting the cleanliness and sealing of the air conditioning system. Existing dust cap designs use threads that screw into the connecting pipe nut for fixation, which can easily loosen over time due to vehicle vibrations.

[0003] This case arose in order to resolve the aforementioned issues. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a plastic cap for air conditioning coils, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a plastic cap for an air conditioner coil, comprising a dustproof cap body, wherein the dustproof cap body includes a top cover, and an outer cap body and an inner cap body with an annular cross-section are sequentially connected to the lower end of the cover in a circumferential outward direction. The outer cap body is an annular body and converges inward from top to bottom, while the inner cap body is an annular body and lightly converges outward from top to bottom, so that an annular placement space is formed between the two with the radial gap gradually increasing from bottom to top, and the air conditioner pipe port is fitted and accommodated.

[0008] Preferably, the outer cap and the inner cap are made of tough plastic or shape memory metal.

[0009] Preferably, the outer cap and the inner cap are provided with circumferentially spaced long grooves at corresponding radial locations.

[0010] Preferably, the inner cap body has a raised rib at the long groove, forming an arc-shaped outward protrusion, and the raised rib is made of any one of the following materials: flexible silicone pad or flexible pad.

[0011] Preferably, the lower part of the outer cap is made of magnetic material, and the corresponding lower part of the inner cap is made of iron material.

[0012] (III) Beneficial Effects

[0013] After adopting the above technical solution, the present invention has the following advantages compared with the prior art: The present invention provides a plastic cap for an air conditioner coil, which is provided with an outer cap body that is converging inward from top to bottom and forming a ring shape, and an inner cap body that is slightly converging outward from top to bottom and forming a ring shape. Both the outer cap body and the inner cap body are made of materials with deformation recovery, so that the radial gap formed between the two can be fitted and fastened to the air conditioner pipe port. At the same time, the magnetic material used in the lower part of the outer cap body further secures the plastic cap.

[0014] Secondly, the outer cap also serves to enclose the side wall of the pipe port. When the plastic cap is closed, there may be a certain degree of circumferential gap between the cap and the pipe port (such as not being completely tight, the cap surface not being completely flush, or slightly loosening during use). Therefore, the outer cap allows external dust and debris to be initially blocked. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] Figure 2 This is a bottom view of the present invention;

[0017] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the inner cap body in this utility model.

[0019] In the diagram: 1. Outer cap; 2. Inner cap; 3. Cap; 4. Raised rib; 5. Long groove; 6. Magnet; 7. Accommodation space. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1-4 As shown: A plastic cap for an air conditioner coil includes a dustproof cap body, which includes a top cover 3. The lower end of the cover 3 is connected in a circumferential direction outward with an outer cap body 1 and an inner cap body 2, which are in the shape of an annular cross section. The outer cap body 1 is an annular body and tapers inward from top to bottom, while the inner cap body 2 is an annular body and slightly tapers outward from top to bottom, so that an annular placement space 7 is formed between the two with the radial gap gradually increasing from bottom to top, so as to accommodate the air conditioner pipe port.

[0022] Both the outer cap 1 and the inner cap 2 are made of conventional tough plastic or shape memory metal, which allows them to deform under stress, thus enabling the air conditioning pipe port to be embedded in them. The lower annular gap is small, which can firmly fit the air conditioning pipe port.

[0023] Considering that the outer cap 1 and the inner cap 2 require radial expansion and contraction respectively, long grooves 5 are circumferentially formed at corresponding radial locations on both the outer cap 1 and the inner cap 2 to facilitate deformation. The inner cap 2 has protruding ribs at the long grooves 5, forming an arc-shaped outward protrusion. These ribs 4 are made of conventional materials such as flexible silicone pads or flexible mats, which increases friction with the inner wall of the air conditioning pipe and can withstand the inward deformation of the inner cap 2.

[0024] It should be noted that the outer cap 1 also serves to enclose the side wall of the pipe port. When the plastic cap is closed, there may be a certain degree of circumferential gap between the cap 3 and the pipe port (such as not being completely closed tightly, the cap surface not being completely flush, or slightly loosening during use). Therefore, the outer cap 1 allows external dust and debris to be initially blocked.

[0025] To ensure the dust cap stays securely in place and prevents it from slipping off, see attached... Figure 3 As shown, in this embodiment, the lower part of the outer cap 1 is made of magnet 6 and the lower part of the inner cap 2 is made of iron, so that when the dust cap is fitted with the air conditioning pipe port, it provides an external attraction force for fixation. The principle of the attraction method using magnet 6 is as follows.

[0026] The selection of materials for automotive air conditioning pipes requires comprehensive consideration of factors such as corrosion resistance, pressure resistance, temperature resistance, lightweight, and cost. Generally, aluminum alloys, rubber materials, and composite materials are chosen. Aluminum alloys are non-magnetic materials, primarily composed of aluminum, and their electronic structure cannot be magnetized in a magnetic field. Therefore, ordinary aluminum alloy pipes will not be attracted by magnet 6. Of course, in industrially produced aluminum alloys, the iron content is usually low (a low iron content can still create a bonding force to secure the plastic cap when attracted by an external magnet 6), and the magnetic properties of aluminum alloys are not significant. Therefore, ordinary magnet 6 has difficulty attracting aluminum alloy pipes, and can instead attract the lower part of the inner cap 2, which is made of iron and adheres to the inner wall of the pipe.

[0027] The above-described embodiments are provided for illustrative purposes. Based on the above description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification; its protection scope must be determined according to the claims.

Claims

1. A plastic cap for an air conditioner coil, comprising a dustproof cap body, characterized in that: The dust cap includes a top cover, and an outer cap body and an inner cap body with an annular cross-section are connected in sequence from the bottom of the cover outward. The outer cap body is annular and tapers inward from top to bottom, while the inner cap body is annular and tapers outward from top to bottom, so that an annular space with a radial gap that gradually increases from bottom to top is formed between the two, and the space is fitted to accommodate the air conditioning pipe port.

2. The plastic cap for an air conditioner coil according to claim 1, characterized in that: The outer and inner cap bodies are made of tough plastic or shape memory metal.

3. The plastic cap for an air conditioner coil according to claim 1, characterized in that: Both the outer and inner caps have circumferentially spaced long grooves at corresponding radial locations.

4. The plastic cap for an air conditioner coil according to claim 1, characterized in that: The inner cap body has a raised rib at the long groove, forming an arc-shaped outward protrusion. The raised rib is made of any material, such as a flexible silicone pad or a flexible pad.

5. A plastic cap for an air conditioner coil according to claim 1, characterized in that: The lower part of the outer cap is made of magnet material, while the corresponding lower part of the inner cap is made of iron material.

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