A fixing structure of an automobile roof antenna

Abstract

The utility model discloses a kind of automobile top-mounted antenna fixing structure, including top-mounted antenna body part, fixed base, elastic support and nut;Fixed base is provided with stud, the central part of elastic support can pass through stud, and elastic support and fixed base are limited to rotate relatively by the cooperation of anti-rotation structure;Nut is connected with stud cooperation, in pre-tightening state, clearance for elastic support to pass through roof mounting hole is formed between elastic support and fixed base, in installation state, by tightening nut, elastic support and fixed base are clamped roof sheet metal.The application is through reasonable gap design and limiting structure in the installation process, ensure the smoothness of assembly and the stability of fixation, further improve the reliability and convenience of top-mounted antenna installation, lay good foundation for the popularization and application of relevant technology.

Description

Technical Field

[0001] This utility model relates to the field of automotive antenna technology, and in particular to a fixing structure for a roof-mounted automotive antenna. Background Technology

[0002] Car antennas are essential components for receiving AM / FM, navigation, and 4G signals, allowing drivers and passengers to listen to the radio, navigate, and connect to the internet. For better signal reception and aesthetics, most car antennas are currently mounted on the roof, such as shark fin antennas and rod antennas, which combine functionality and style. Existing shark fin antennas are typically connected to the car's sheet metal by inserting from the outside of the roof to the inside, and then directly securing it with nuts on the inside. This method requires simplicity and ease of operation.

[0003] There are many types of roof-mounted antenna installation structures. To facilitate assembly and fixation, and to prevent loosening, the antenna is generally inserted through a mounting hole on the outside of the vehicle roof and tightened with its own bolts or nuts, causing the elastic bracket to extend outward and secure the antenna. For example... Figure 1 As shown, the nut and elastic bracket are pre-tightened onto the antenna. Before the elastic bracket extends outward, it can pass through the mounting hole on the roof. After tightening, the four claws of the bracket extend outward and lock onto the roof cover, thus securing the antenna. Although this roof-mounted antenna mounting structure meets the basic assembly and fixing requirements, there may be potential problems during installation, such as assembly jamming and loosening after fixing. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fixing structure for automotive roof-mounted antennas, thus establishing the necessary conditions for the independent development of roof-mounted antennas.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0006] A roof-mounted antenna mounting structure for automobiles includes a roof-mounted antenna body, a mounting base, an elastic bracket, and a nut. A stud is provided on the mounting base, and the center portion of the elastic bracket can pass through the stud. The elastic bracket and the mounting base are coupled by an anti-rotation structure to restrict relative rotation between them. The nut is connected to the stud. In a pre-tightened state, a gap is formed between the elastic bracket and the mounting base, allowing the elastic bracket to pass through a mounting hole in the roof. In the installed state, tightening the nut clamps the elastic bracket and the mounting base onto the roof sheet metal.

[0007] Preferably, in the above technical solution, the anti-rotation structure includes an anti-elastic bracket rotation limiting groove provided on the fixed base, and an anti-elastic bracket rotation limiting clip provided on the elastic bracket, wherein the anti-elastic bracket rotation limiting clip can be inserted into the anti-elastic bracket rotation limiting groove.

[0008] Preferably, in the above technical solution, the fixed base is provided with a pre-fixing limiting groove, and the elastic bracket is provided with a pre-fixing limiting foot. In the pre-tightened state, the pre-fixing limiting foot contacts the pre-fixing limiting groove to limit the gap between the elastic bracket and the fixed base.

[0009] Preferably, in the above technical solution, the elastic bracket is provided with a fixing claw. The outer dimensions of the fixing claw are larger than the dimensions of the roof mounting hole. When it passes through the roof mounting hole, it is subjected to force and deforms inward. After passing through, the stress is released and it rebounds.

[0010] Preferably, in the above technical solution, in the installed state, by tightening the nut, the gap between the fixing claw and the fixing base is equal to the thickness of the roof sheet metal, so as to clamp the roof sheet metal.

[0011] Preferably, in the above technical solution, the fixed base is provided with an anti-rotation limiting boss for the top-mounted antenna. In the installed state, the anti-rotation limiting boss for the top-mounted antenna is used to prevent the top-mounted antenna from rotating in the XY plane.

[0012] The above-mentioned technical solution of this utility model has the following beneficial effects:

[0013] This application presents a novel top-mounted antenna fixing structure through a unique design and matching method for the fixed base and elastic bracket. This effectively circumvents the patent restrictions of existing structures and provides a feasible technical solution for the independent research and development and production of top-mounted antennas. Furthermore, the structure ensures smooth assembly and stable fixing through reasonable gap design and limiting structure during installation, further improving the reliability and convenience of top-mounted antenna installation and laying a solid foundation for the promotion and application of related technologies. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0015] Figure 1 This is a schematic diagram of the existing automotive roof-mounted antenna fixing structure.

[0016] Figure 2 This is an exploded view of the vehicle roof-mounted antenna fixing structure of this application.

[0017] Figure 3 This is an enlarged view of the fixed base.

[0018] Figure 4 This is an enlarged view of the flexible support.

[0019] Figure 5 This is a schematic diagram showing the matching of the elastic support and the fixed base.

[0020] Figure 6 This is the rear view of the pre-installation state.

[0021] Figure 7 This is the view after installation.

[0022] Wherein: 100-top antenna body, 200-fixed base, 201-pre-fixing limiting groove, 202-anti-top antenna rotation limiting boss, 203-anti-elastic bracket rotation limiting groove, 204-stud, 300-elastic bracket, 301-pre-fixing limiting foot, 302-fixing claw, 303-anti-elastic bracket rotation limiting foot, 400-nut. Detailed Implementation

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0024] like Figure 2 As shown, the top-mounted antenna fixing structure of this application includes a top-mounted antenna body 100, a fixing base 200, an elastic bracket 300, and a nut 400. The matching design of the fixing base 200 and the elastic bracket 300 is the core of achieving stable antenna installation.

[0025] like Figure 3 , Figure 4 , Figure 5 As shown, the fixed base 200 is provided with multiple functional structures: a pre-fixing limiting groove 201, which is used to cooperate with the corresponding structure of the elastic bracket 300 during the pre-installation stage; an anti-top antenna rotation limiting boss 202, which can limit the rotation of the antenna in the XY plane; an anti-elastic bracket rotation limiting groove 203, which is used to prevent the elastic bracket 300 from rotating and shifting after installation; and a stud 204, which is a key component for connecting the elastic bracket 300 and the fixed base 200, which can penetrate the elastic bracket 300 and be fastened by a nut 400.

[0026] The structure of the elastic bracket 300 is adapted to the fixed base 200: the pre-fixing limiting foot 301 contacts the pre-fixing limiting groove 201 of the fixed base in the pre-installation state; the fixing claw 302, whose outer dimensions are larger than the roof mounting hole, is the core structure for fixing the antenna to the roof sheet metal; the anti-elastic bracket rotation limiting foot 303 can be inserted into the anti-elastic bracket rotation limiting groove 203 of the fixed base to prevent rotation.

[0027] The assembly relationship between the flexible bracket 300 and the fixed base 200 is as follows: the fixed base 200 and the flexible bracket 300 are used together to achieve the effect of fixing the antenna. The center part of the flexible bracket passes through the stud 204 of the fixed base 200. The anti-rotation limiting clip 303 of the flexible bracket is inserted into the anti-rotation limiting groove 203 of the fixed base, preventing the bracket from rotating. The pre-fixing limiting clip 301 contacts the pre-fixing limiting groove 201 of the fixed base 200. In the pre-tightened state, it limits the gap between the fixing claw 302 and the fixed base 200. This allows the fixing claw 302 to deform smoothly through the roof of the vehicle when the roof-mounted antenna is installed (the outer dimensions of the fixing claw 302 are larger than the size of the roof mounting hole, causing the fixing claw 302 to retract under force and spring back after passing through). This prevents the flexible bracket 300 from being stuck completely by the deformation stress of the fixing claw 302 when passing through the roof mounting hole, thus preventing the roof-mounted antenna from being installed. Figure 6 As shown, the gap between the fixing claw 302 of the elastic bracket 300 and the fixing base 200 can be seen. This gap ensures that the top-mounted antenna can pass smoothly through the mounting hole of the roof.

[0028] like Figure 7 As shown, after the top-mounted antenna passes through the mounting hole in the roof, the fixing claw 302 of the elastic bracket 300, being larger than the size of the roof mounting hole, can act as a locking mechanism. By tightening the nut 400, the gap between the fixing claw 302 and the fixing base 200 is reduced (after tightening, the gap is only the thickness of the roof sheet metal), thus fixing the top-mounted antenna in place. During the tightening process, the pre-fixing limiting claw 301 of the elastic bracket 300 deforms under force, and its limiting function disappears. At the same time, the anti-rotation limiting boss 202 of the fixing base 200 prevents the top-mounted antenna from being mounted in the XY plane, ensuring that the antenna does not deflect.

[0029] The installation method of the above-mentioned car roof-mounted antenna fixing structure includes the following steps:

[0030] S1. Pass the center part of the elastic bracket 300 through the stud 204 of the fixed base 200, so that the elastic bracket 300 and the fixed base 200 are engaged by the anti-rotation structure, and the pre-fixing limit foot 301 contacts the pre-fixing limit groove 201 to form a pre-tightened state. At this time, there is a gap between the elastic bracket 300 and the fixed base 200 for the elastic bracket to pass through the roof mounting hole.

[0031] S2. The pre-assembled structure is inserted into the mounting hole from the outside of the roof along with the top antenna body 100. The fixing claw 302 of the elastic bracket 300 is larger than the mounting hole and is forced to retract inward. After passing through the mounting hole smoothly, the stress is released and the structure rebounds.

[0032] S3. Tighten the nut 400 and stud 204 from the inside of the roof to deform the pre-fixed limiting clip 301 under force, reduce the gap between the fixing claw 302 and the fixing base 200 to the thickness of the roof sheet metal, and at the same time, the anti-rotation limiting boss 202 of the roof antenna prevents the antenna from rotating, thus completing the fixing.

[0033] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various different choices and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A mounting structure for a car roof-mounted antenna, characterized in that, The device includes a top-mounted antenna body (100), a fixed base (200), an elastic bracket (300), and a nut (400). The fixed base (200) is provided with a stud (204), and the center part of the elastic bracket (300) can pass through the stud (204). The elastic bracket (300) and the fixed base (200) are connected by an anti-rotation structure to restrict their relative rotation. The nut (400) is connected to the stud (204). In the pre-tightened state, a gap is formed between the elastic bracket (300) and the fixed base (200) for the elastic bracket to pass through the roof mounting hole. In the installed state, tightening the nut (400) clamps the elastic bracket (300) and the fixed base (200) together to clamp the roof sheet metal.

2. The vehicle roof-mounted antenna fixing structure according to claim 1, characterized in that, The anti-rotation structure includes an anti-elastic bracket rotation limiting groove (203) provided on the fixed base (200) and an anti-elastic bracket rotation limiting foot (303) provided on the elastic bracket (300), wherein the anti-elastic bracket rotation limiting foot (303) can be inserted into the anti-elastic bracket rotation limiting groove (203).

3. The vehicle roof-mounted antenna fixing structure according to claim 1, characterized in that, The fixed base (200) is provided with a pre-fixing limiting groove (201), and the elastic bracket (300) is provided with a pre-fixing limiting foot (301). In the pre-tightened state, the pre-fixing limiting foot (301) contacts the pre-fixing limiting groove (201) to limit the gap between the elastic bracket (300) and the fixed base (200).

4. The vehicle roof-mounted antenna fixing structure according to claim 1, characterized in that, The elastic bracket (300) is provided with a fixing claw (302). The outer dimensions of the fixing claw (302) are larger than the dimensions of the roof mounting hole. When it passes through the roof mounting hole, it is subjected to force and deforms inward. After passing through, the stress is released and it rebounds.

5. The vehicle roof-mounted antenna fixing structure according to claim 4, characterized in that, In the installed state, by tightening the nut (400), the gap between the fixing claw (302) and the fixing base (200) is equal to the thickness of the roof sheet metal, so as to clamp the roof sheet metal.

6. The vehicle roof-mounted antenna fixing structure according to claim 1, characterized in that, The fixed base (200) is provided with a top antenna rotation limiting boss (202). In the installed state, the top antenna rotation limiting boss (202) is used to prevent the top antenna from rotating in the XY plane.

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