Telescopic hidden vehicle-mounted antenna supporting structure and operation method

By incorporating a guide unit, gear system, and motor-driven retractable and concealed vehicle-mounted antenna support structure within the shark fin antenna body, the problems of lack of concealment and extension in shark fin antennas are solved, improving aesthetics and signal stability while ensuring airtightness.

CN121863033APending Publication Date: 2026-04-14JIANGSU BONA PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-02
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing antennas installed in the shark fin position of automobiles lack telescopic and concealment functions, affecting aesthetics, and existing extendable antennas are difficult to extend to their maximum extent.

Method used

The retractable, concealed vehicle-mounted antenna support structure utilizes a guide unit, gear system, and dual-axis motor drive within the shark fin antenna body. The antenna's extension and retraction are achieved through gear transmission and motor control, while a sealing unit ensures airtightness.

Benefits of technology

This design allows the antenna to be completely hidden when not in use and extended to its maximum extent when in use, improving aesthetics and signal stability while ensuring a tight seal.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121863033A_ABST
    Figure CN121863033A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of vehicle-mounted antennas, in particular to a telescopic hidden type vehicle-mounted antenna supporting structure and an operation method, the telescopic hidden type vehicle-mounted antenna supporting structure comprises a shark fin antenna main body, guide units are installed on the two sides in the shark fin antenna main body, and a third gear, a second gear and a first gear are sequentially installed on each guide unit from top to bottom; a winding antenna is installed between the third gears installed on the two guide units, a double-output-shaft motor with a support is installed between the first gears installed on the two guide units, a spring is installed at the bottom end of the double-output-shaft motor, and a sealing unit is installed on the inner side of the upper end of the shark fin antenna body; the guide unit comprises a guide frame. According to the invention, when the antenna needs to be extended to the outside for use, in the process of completely extending the antenna, the bottom of the extended antenna is pushed to move upwards at the same time, so that the antenna can be extended to the outside to the greatest extent, and the signal stability and the signal receiving range are further improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to a retractable, concealed vehicle-mounted antenna support structure and its operation method, belonging to the field of vehicle-mounted antenna technology. Background Technology

[0002] The retractable and concealed vehicle antenna support structure is an electromechanical integrated device that is built into the roof of a vehicle. It consists of multi-level nested sleeves, a linear motor, a spring-clamp locking mechanism, and a sealed base.

[0003] The antenna mast is covered with a rubber protective layer, allowing it to retract completely into the roof compartment when not in use, leaving only a millimeter-level gap to reduce wind resistance and theft risk. When communication is needed, a button inside the vehicle triggers a linear motor, which pushes out the sleeve step by step via a steel cable or lead screw. The locking steel ball automatically springs into the limiting groove, raising the antenna to the preset height within 2 seconds and maintaining rigidity. After use, a light press on the top releases the locking pin, and the spring retracts to silently retract the antenna. It is dustproof and waterproof throughout the process and is suitable for SUVs, police vehicles, and special vehicles. Existing antennas installed in the shark fin area of ​​automobiles generally do not have telescopic or concealing functions, which affects the aesthetics in actual use. Furthermore, existing telescopic antennas are difficult to extend to the maximum extent during actual extension. Therefore, there is an urgent need to improve the support structure and operation method of a telescopic and concealed vehicle antenna to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a retractable and concealable vehicle antenna support structure and operation method to solve the problem that existing antennas installed in the shark fin position of automobiles generally do not have the functions of retraction and concealment, which affects the aesthetics in actual use. In addition, existing extendable antennas are difficult to extend to the outside to the maximum extent in actual extension.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A retractable, concealed vehicle-mounted antenna support structure and operating method includes a shark fin antenna body. Guide units are installed on both sides of the shark fin antenna body. A third gear, a second gear, and a first gear are sequentially installed on each guide unit from top to bottom. A winding antenna is installed between the third gears installed on two guide units. A dual-axis motor with a bracket is installed between the first gears installed on two guide units. A spring is installed at the bottom of the dual-axis motor. A sealing unit is installed on the inner side of the upper end of the shark fin antenna body. The guide unit includes a guide frame. A hollow groove is formed on the lower side of the guide frame, and a vertical groove is formed on the upper end of the guide frame. A curved plate is slidably connected inside the vertical groove, and a sliding plate is fixedly connected to the lower end of the curved plate.

[0006] Preferably, the shark fin antenna body includes a housing, and the housing has a storage slot for placing the winding antenna, sealing unit, guide roller, guide unit, spring, first gear, second gear, third gear and dual output shaft motor. The upper end of the housing has a placement slot communicating with the storage slot, and the sealing unit is installed on the outer side of the lower end of the placement slot.

[0007] Preferably, the winding antenna includes an elastic antenna, the top end of which is fixedly connected to a top block adapted to the placement slot, and the tail end of the elastic antenna is equipped with a central shaft.

[0008] Preferably, the central shaft and the third gear are coaxially arranged, the two ends of the central shaft are fixedly connected to the third gear, and the lateral projection of the central shaft is cross-shaped.

[0009] Preferably, the sealing unit includes a rubber ring, with airbags installed at both ends of the rubber ring. An annular hollow groove is formed inside the rubber ring, and a hollow cavity is formed inside the airbag. The annular hollow groove and the hollow cavity are connected by a connecting groove.

[0010] Preferably, the skateboard includes a board body, and the board body has three circular holes inside. The board body is rotatably connected to the third gear, the second gear, and the first gear in sequence from top to bottom through the circular holes.

[0011] Preferably, the slide plate is slidably connected to the guide frame via a vertical groove, the vertical groove is connected to the hollow groove, and the lateral projection of the guide frame is U-shaped.

[0012] Preferably, the diameters of the third gear and the second gear are equal, the diameter ratio of the third gear to the first gear is 6:1, the third gear meshes with the second gear, and the second gear meshes with the first gear.

[0013] Preferably, there are two guide rollers, which are parallel to each other and rotatably connected to the housing. The guide rollers are arranged on both sides of the upper end of the elastic antenna, and the lateral projection of the guide rollers is cross-shaped.

[0014] Preferably, the following steps are included: Step 1: Install the shark fin antenna body on the rear of the car. During the installation process, when it is necessary to extend the antenna later, the dual output shaft motors are controlled to achieve this. Step 2: The dual-axis motor rotates in the opposite direction, and the elastic antenna extends from inside the housing. During the extension process, the guide unit moves upward synchronously under the action of the spring, which is used to extend the elastic antenna to the outside of the housing to the maximum extent. Step 3: In step 2 above, the bending plate moves upward synchronously. When the bending plate moves to the top, it squeezes the airbag. During the squeezing process, the gas inside the airbag enters the annular hollow groove through the connecting groove. At this time, the rubber ring expands. The inside of the expanded rubber ring is in close contact with the outside of the elastic antenna to ensure the sealing of the bottom of the placement groove. Step 4: When the flexible antenna is no longer needed, control the dual output shaft motor to rotate in the opposite direction to wind up the flexible antenna. After winding up, the flexible antenna is completely hidden inside the housing, and the top block is stored inside the placement slot to ensure the overall aesthetics of the shark fin antenna.

[0015] This invention has at least the following beneficial effects: 1. This invention hides the antenna inside the car's shark fin. When the antenna is not in use, it can be completely hidden inside the car's shark fin, further improving the aesthetics during subsequent use. Moreover, during subsequent use, when the antenna needs to be extended to the outside, the bottom of the extended antenna is pushed upwards during the process of fully extending the antenna, thereby maximizing the extension of the antenna to the outside and further improving the signal stability and signal reception range. 2. In this invention, by setting a sealing unit, after the antenna is fully extended, the movement of the internal structure of the device can cause the rubber ring to expand, thereby making the inside of the rubber ring tightly attached to the outside of the bottom of the elastic antenna, further improving the sealing effect of the connection between the bottom of the elastic antenna and the placement groove, so as to ensure the sealing effect during the overall operation of the device. 3. In this invention, by setting a first gear, a second gear and a third gear, the dual-output shaft motor drives the first gear to rotate, the second gear transmits power, and the third gear winds up and extends the elastic antenna, thereby achieving the winding and extension of the elastic antenna with a smaller force, while avoiding the problem of interference between the elastic antenna and the dual-output shaft motor after winding up. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the shark fin antenna body of the present invention; Figure 3 This is a schematic diagram of the spring mounting position structure of the present invention; Figure 4 This is a schematic diagram of the guiding unit structure of the present invention; Figure 5 This is a schematic diagram of the skateboard structure of the present invention; Figure 6 This is a schematic diagram of the winding antenna structure of the present invention; Figure 7 This is a schematic diagram of the sealing unit structure of the present invention; Figure 8 This is a cross-sectional view of the rubber ring of the present invention.

[0017] In the diagram, 1. Shark fin antenna body; 11. Housing; 12. Storage slot; 13. Placement slot; 2. Winding antenna; 21. Flexible antenna; 22. Central axis; 23. Top block; 3. Sealing unit; 31. Rubber ring; 32. Airbag; 33. Annular hollow groove; 34. Connecting groove; 35. Hollow cavity; 4. Guide rollers; 5. Guide unit; 51. Guide frame; 52. Vertical groove; 53. Hollow groove; 54. Curved plate; 55. Slide plate; 551. Plate body; 552. Circular hole; 6. Spring; 7. First gear; 8. Second gear; 9. Third gear; 10. Dual-shaft motor. Detailed Implementation

[0018] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] like Figures 1-8 As shown, this embodiment provides a retractable and concealed vehicle-mounted antenna support structure, including a shark fin antenna body 1. Guide units 5 are installed on both sides of the shark fin antenna body 1. A third gear 9, a second gear 8, and a first gear 7 are sequentially installed on each guide unit 5 from top to bottom. A winding antenna 2 is installed between the third gears 9 installed on the two guide units 5. A dual-axis motor 10 with a bracket is installed between the first gears 7 installed on the two guide units 5 (it should be noted that the dual-axis motor 10 is installed between the two guide frames 51 via a bracket, and is not suspended; the bottom of the dual-axis motor 10 is fixed and connected to a spring 6 via a housing). A spring 6 is installed at the bottom of the dual-axis motor 10. A sealing unit 3 is installed on the inner side of the upper end of the shark fin antenna body 1. The guide unit 5 includes a guide frame 51. A hollow groove 53 is opened on the lower side of the guide frame 51. A vertical groove 52 is opened on the upper end of the guide frame 51. A curved plate 54 is slidably connected inside the vertical groove 52. A sliding plate 55 is fixedly connected to the lower end of the curved plate 54.

[0020] As a further embodiment of the present invention, the shark fin antenna body 1 includes a housing 11. Inside the housing 11, there is a storage slot 12 for placing the winding antenna 2, sealing unit 3, guide roller 4, guide unit 5, spring 6, first gear 7, second gear 8, third gear 9, and dual-axis motor 10. The upper end of the housing 11 has a placement slot 13 that communicates with the storage slot 12. The sealing unit 3 is installed on the outer side of the lower end of the placement slot 13. With the above arrangement, the winding antenna 2, sealing unit 3, guide roller 4, guide unit 5, spring 6, first gear 7, second gear 8, third gear 9, and dual-axis motor 10 can be stably installed. At the same time, the winding antenna 2, sealing unit 3, guide roller 4, guide unit 5, spring 6, first gear 7, second gear 8, third gear 9, and dual-axis motor 10 are hidden inside the shark fin, which improves the stability and aesthetics of the antenna when it is not in use. As a further embodiment of the present invention, the winding antenna 2 includes an elastic antenna 21, a top block 23 adapted to the placement groove 13 is fixedly connected to the top of the elastic antenna 21, and a central shaft 22 is installed at the tail end of the elastic antenna 21. Through the above arrangement, the top block 23 can be adapted to the placement groove 13 to improve the aesthetics and sealing effect in subsequent use. As a further embodiment of the present invention, the central shaft 22 and the third gear 9 are coaxially arranged, the two ends of the central shaft 22 are fixedly connected to the third gear 9, and the lateral projection of the central shaft 22 is cross-shaped. With the above arrangement, the elastic antenna 21 can be stably wound and extended through the central shaft 22. As a further embodiment of the present invention, the sealing unit 3 includes a rubber ring 31, with airbags 32 installed at both ends of the rubber ring 31. An annular hollow groove 33 is formed inside the rubber ring 31, and a hollow cavity 35 is formed inside the airbag 32. The annular hollow groove 33 and the hollow cavity 35 are connected by a connecting groove 34. With the above arrangement, the bottom of the antenna can be sealed when the antenna is fully extended to prevent foreign objects from entering the housing 11 when the antenna is fully extended. As a further embodiment of the present invention, the slide plate 55 includes a plate body 551, and three circular holes 552 are provided inside the plate body 551. The plate body 551 is rotatably connected to the third gear 9, the second gear 8 and the first gear 7 from top to bottom through the circular holes 552. With the above arrangement, the first gear 7, the second gear 8 and the third gear 9 can be stably limited, and the first gear 7, the second gear 8 and the third gear 9 can move synchronously and stably. As a further embodiment of the present invention, the slide plate 55 is slidably connected to the guide frame 51 through the vertical groove 52, the vertical groove 52 is connected to the hollow groove 53, and the lateral projection of the guide frame 51 is U-shaped. Through the above settings, the first gear 7, the second gear 8 and the third gear 9 can be further limited. As a further embodiment of the present invention, the diameters of the third gear 9 and the second gear 8 are equal, the diameter ratio of the third gear 9 to the first gear 7 is 6:1, the third gear 9 meshes with the second gear 8, and the second gear 8 meshes with the first gear 7. With the above arrangement, the dual-output shaft motor 10 can drive the third gear 9 to rotate with a smaller force to complete the winding and extension of the elastic antenna 21. As a further embodiment of the present invention, there are two guide rollers 4, which are parallel to each other and are rotatably connected to the housing 11. The guide rollers 4 are arranged on both sides of the upper end of the elastic antenna 21, and the lateral projection of the guide rollers 4 is cross-shaped. By using the two guide rollers 4 arranged above, the stability of the elastic antenna 21 during the winding and stretching process can be further improved.

[0021] like Figures 1-8 As shown in the figure, the principle of the operation method of the retractable hidden vehicle-mounted antenna support structure provided in this embodiment is as follows: Includes the following steps: Step 1: Install the shark fin antenna body 1 on the rear of the car. During the installation process, when it is necessary to extend the winding antenna 2, the dual output shaft motor 10 is controlled to operate. Step 2: The dual-axis motor 10 rotates in the opposite direction, and the elastic antenna 21 extends from inside the housing 11. During the extension process, the guide unit 5 moves upward synchronously under the action of the spring 6, which is used to extend the elastic antenna 21 to the outside of the housing 11 to the maximum extent. Step 3: In step 2 above, the bending plate 54 moves upward synchronously. When the bending plate 54 moves to the uppermost position, it squeezes the airbag 32. During the squeezing process, the gas inside the airbag 32 enters the annular hollow groove 33 through the connecting groove 34. At this time, the rubber ring 31 expands. The inside of the expanded rubber ring 31 is in close contact with the outside of the elastic antenna 21 to ensure the sealing of the bottom of the placement groove 13. Step 4: When the elastic antenna 21 is no longer needed, control the dual output shaft motor 10 to rotate in the opposite direction to wind up the elastic antenna 21. After winding up, the elastic antenna 21 is completely hidden inside the housing 11, and the top block 23 is stored inside the placement slot 13 to ensure the overall aesthetics of the shark fin antenna.

[0022] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0023] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0024] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A retractable, concealed vehicle-mounted antenna support structure, characterized in that, The device includes a shark fin antenna body (1), with guide units (5) installed on both sides inside the shark fin antenna body (1). A third gear (9), a second gear (8), and a first gear (7) are installed on the guide units (5) from top to bottom. A winding antenna (2) is installed between the third gears (9) installed on the two guide units (5). A dual-axis motor (10) with a bracket is installed between the first gears (7) installed on the two guide units (5). A spring (6) is installed at the bottom of the dual-axis motor (10). A sealing unit (3) is installed on the inner side of the upper end of the shark fin antenna body (1). The guide unit (5) includes a guide frame (51), a hollow groove (53) is provided on the lower side inside the guide frame (51), a vertical groove (52) is provided on the upper end of the guide frame (51), a curved plate (54) is slidably connected inside the vertical groove (52), and a sliding plate (55) is fixedly connected to the lower end of the curved plate (54).

2. The retractable concealed vehicle-mounted antenna support structure according to claim 1, characterized in that: The shark fin antenna body (1) includes a housing (11). Inside the housing (11) is a storage slot (12) for placing the winding antenna (2), sealing unit (3), guide roller (4), guide unit (5), spring (6), first gear (7), second gear (8), third gear (9) and dual output shaft motor (10). The upper end of the housing (11) is provided with a placement slot (13) that communicates with the storage slot (12). The sealing unit (3) is installed on the lower outer side of the placement slot (13).

3. The retractable concealed vehicle-mounted antenna support structure according to claim 1, characterized in that: The winding antenna (2) includes an elastic antenna (21), the top of which is fixedly connected to a top block (23) that is adapted to the placement slot (13), and the tail end of the elastic antenna (21) is equipped with a central shaft (22).

4. The retractable concealed vehicle-mounted antenna support structure according to claim 3, characterized in that: The central shaft (22) and the third gear (9) are coaxially arranged, and the two ends of the central shaft (22) are fixedly connected to the third gear (9). The lateral projection of the central shaft (22) is cross-shaped.

5. The retractable concealed vehicle-mounted antenna support structure according to claim 1, characterized in that: The sealing unit (3) includes a rubber ring (31), and airbags (32) are installed at both ends of the rubber ring (31). An annular hollow groove (33) is opened inside the rubber ring (31), and a hollow cavity (35) is opened inside the airbag (32). The annular hollow groove (33) and the hollow cavity (35) are connected by a connecting groove (34).

6. The retractable concealed vehicle-mounted antenna support structure according to claim 1, characterized in that: The slide (55) includes a board body (551), and the board body (551) has three round holes (552) inside. The board body (551) is rotatably connected to the third gear (9), the second gear (8) and the first gear (7) from top to bottom through the round holes (552).

7. The retractable concealed vehicle-mounted antenna support structure according to claim 1, characterized in that: The slide plate (55) is slidably connected to the guide frame (51) through the vertical groove (52), and the vertical groove (52) is connected to the hollow groove (53). The lateral projection of the guide frame (51) is U-shaped.

8. The retractable concealed vehicle-mounted antenna support structure according to claim 1, characterized in that: The diameters of the third gear (9) and the second gear (8) are equal, and the diameter ratio of the third gear (9) to the first gear (7) is 6:

1. The third gear (9) meshes with the second gear (8), and the second gear (8) meshes with the first gear (7).

9. The retractable concealed vehicle-mounted antenna support structure according to claim 2, characterized in that: There are two guide rollers (4), which are parallel to each other. The guide rollers (4) are rotatably connected to the housing (11). The guide rollers (4) are arranged on both sides of the upper end of the elastic antenna (21). The lateral projection of the guide rollers (4) is cross-shaped.

10. A method for operating a retractable, concealed vehicle-mounted antenna support structure according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Install the shark fin antenna body (1) on the rear of the car. During the installation process, when it is necessary to extend the winding antenna (2) later, the dual output shaft motor (10) is controlled to run. Step 2: The dual-axis motor (10) rotates in the opposite direction, and the elastic antenna (21) extends from inside the housing (11). During the extension process, the guide unit (5) moves upward synchronously under the action of the spring (6) to extend the elastic antenna (21) to the outside of the housing (11) to the maximum extent. Step 3: In step 2 above, the bending plate (54) moves upward synchronously. When the bending plate (54) moves to the top, the bending plate (54) squeezes the airbag (32). During the squeezing process, the gas inside the airbag (32) enters the annular hollow groove (33) through the connecting groove (34). At this time, the rubber ring (31) expands. The inside of the expanded rubber ring (31) is in close contact with the outside of the elastic antenna (21) to ensure the sealing of the bottom of the placement groove (13). Step 4: When the elastic antenna (21) is no longer needed, control the dual output shaft motor (10) to rotate in the opposite direction to wind up the elastic antenna (21). After winding up, the elastic antenna (21) is completely hidden inside the housing (11), and the top block (23) is stored inside the placement slot (13) to ensure the overall aesthetics of the shark fin antenna.