A multi-band suction cup antenna

Abstract

The invention discloses a multi-band suction cup antenna, which relates to the technical field of multi-band suction cup antennas. The multi-band suction cup antenna comprises a base and a rubber suction cup fixedly arranged at the bottom of the base, wherein a hollow vertical plate is fixedly arranged on the top of the base, and when the suction cup antenna is hit by an external object, the multi-band antenna rod can be folded in a direction away from the impact, and when passing through an obstacle, the folded multi-band antenna rod can be automatically reset, which can effectively prevent the multi-band antenna rod from being broken after being hit by an external object, and in the process of the multi-band antenna rod being folded in a direction away from the impact, a rotary connection mechanism can be linked to drive a negative pressure exhaust mechanism to perform an exhaust operation, and the air inside the rubber suction cup is sucked by the negative pressure exhaust mechanism, so that negative pressure can be formed inside the rubber suction cup, and the negative pressure can be used to temporarily assist and strengthen the adsorption strength of the suction cup antenna, so as to prevent the installed suction cup antenna from being scratched by obstacles during the driving of the vehicle.

Description

Technical Field

[0001] The invention relates to the technical field of multi-band suction cup antennas, in particular to a multi-band suction cup antenna. Background Art

[0002] The vehicle antenna is a device that intercepts the high-frequency radio waves emitted by the transmitter and transmits them to the receiver of the car radio, car phone or radio navigation equipment to demodulate the carrier. When in use, it is often installed and fixed on the surface of the car roof, so that the vehicle antenna has a wider range when receiving signals and can avoid interference from the car body;

[0003] Currently, most of the suction cup antennas on the market have magnets at their bottoms, and are only fixed to the roof by the magnets. The adsorption performance is poor, and the installed suction cup antenna is easily scratched while the car is driving. In addition, the existing suction cup antenna has poor impact resistance, and the suction cup antenna is easily broken after being hit by external objects. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention provides a multi-band suction cup antenna.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A multi-band suction cup antenna comprises a base and a rubber suction cup fixedly arranged at the bottom of the base, a hollow vertical plate is fixedly arranged on the top of the base, a rotating connection mechanism is inserted on one side of the hollow vertical plate, a fixing component is fixedly connected to the outside of the rotating connection mechanism, a multi-band antenna rod is inserted in the middle of the fixing component, and the multi-band antenna rod and the rotating connection mechanism are connected by threads, a cable is fixedly arranged on one side of the base, a connector is fixedly connected to one end of the cable, a negative pressure exhaust mechanism and a metal grounding plate are fixedly arranged in the inner cavity of the base, and a magnetic adsorption component is fixedly arranged inside the base below the metal grounding plate, when the suction cup antenna is hit by an external object during driving of the vehicle, the multi-band antenna rod can be folded in the direction away from the impact through the rotating connection mechanism, and when the suction cup antenna passes through an obstacle When the multi-band antenna pole is folded, it can be automatically reset under the drive of the rotating connection mechanism, which can effectively prevent the multi-band antenna pole from being broken after being hit by an external object. Moreover, when the suction cup antenna is hit by an external object, the multi-band antenna pole is folded in the direction away from the impact. The rotating connection mechanism can be linked to drive the negative pressure suction mechanism to perform a suction operation. The air inside the rubber suction cup is sucked by the negative pressure suction mechanism, which can form a negative pressure inside the rubber suction cup. The negative pressure can be used to temporarily assist in strengthening the adsorption strength of the suction cup antenna. This solution adopts a combination of magnetic adsorption and negative pressure adsorption for double adsorption, which can not only prevent the installed suction cup antenna from being scratched by obstacles during the driving of the car, but also solve the problem of poor adsorption strength of the traditional rubber suction cup due to air leakage after long-term storage.

[0007] The rotary connection mechanism includes a hollow disc and a connection kit fixedly inserted on one side of the hollow vertical plate, a metal connector fixedly inserted on the top of the hollow disc, a bending portion provided at the bottom end of the metal connector, a first insulating sleeve and a second insulating sleeve fixedly sleeved on the outside of the metal connector and the outside of the bending portion respectively, the second insulating sleeve is rotatably installed inside the connection kit through a bearing, and a torque spring is fixedly connected between the outside of the second insulating sleeve and the connection kit, a collector ring is fixedly connected to one end of the bending portion, and a linkage rod is eccentrically provided on the outside of the hollow disc.

[0008] As a preferred technical solution of the present invention, the base includes a base body and a first installation cavity and a second installation cavity opened inside the base body. An annular exhaust channel is opened on the base body outside the first installation cavity, and a negative pressure exhaust hole is provided between the bottom of the annular exhaust channel and the second installation cavity.

[0009] As a preferred technical solution of the present invention, the rubber suction cup includes a suction cup body fixedly mounted on the bottom of the base body, and an annular sealing groove is provided at the bottom of the suction cup body.

[0010] As a preferred technical solution of the present invention, the bent portion is connected to the cable through a collector ring, and the collector ring is fixedly installed on one side of the inner cavity of the hollow vertical plate through a support rod.

[0011] As a preferred technical solution of the present invention, the fixing assembly includes a connecting rod symmetrically fixedly installed on the outside of the rotating connection mechanism, the top of the connecting rod is fixedly connected to a fixing sleeve, and the outside of the fixing sleeve is threadedly connected to a locking knob.

[0012] As a preferred technical solution of the present invention, the multi-band antenna rod includes a multi-band antenna body, a threaded connection sleeve is fixedly provided at the bottom end of the multi-band antenna body, and the threaded connection sleeve matches the metal connector, and anti-slip bumps are equidistantly arranged axially on the outer side of the threaded connection sleeve.

[0013] As a preferred technical solution of the present invention, a feed core wire and a ground feed core wire are provided inside the cable, one end of the feed core wire is connected to a collector ring, and one end of the ground feed core wire is connected to a metal grounding plate.

[0014] As a preferred technical solution of the present invention, the negative pressure exhaust mechanism includes an outer shell body fixedly installed in the inner cavity of the first installation cavity, a pull rod is slidably inserted into the top of the outer shell body, the upper and lower ends of the pull rod are respectively fixedly connected with a driving plate and a piston assembly, a driving groove is opened on the driving plate, a return spring is sleeved on the outer side of the pull rod, and an exhaust pipe is connected between one side of the bottom end of the outer shell body and the annular exhaust channel. When the suction cup antenna is hit by an external object and the multi-band antenna pole is folded away from the impact direction, the rotating connection mechanism can be driven to rotate. When the rotating connection mechanism rotates, the eccentrically arranged linkage rod cooperates with the driving groove to drive the driving plate on the negative pressure exhaust mechanism to move upward. When the driving plate moves upward, the pull rod is used The piston assembly can be pulled to move upward, and when the piston assembly moves upward, the outer shell can be used to perform a vacuum operation. The interior of the second installation cavity can be vacuumed through the vacuum pipe, the annular vacuum channel and the negative pressure vacuum hole arranged on one side of the bottom end of the outer shell, so that negative pressure can be formed inside the rubber suction cup. The rubber suction cup can use the negative pressure to temporarily assist in strengthening the adsorption strength of the suction cup antenna. When the suction cup antenna passes through an obstacle, the folded multi-band antenna pole and the rotating connection mechanism can be automatically reset under the drive of the torque spring inside the rotating connection mechanism. When the rotating connection mechanism drives the linkage rod to reset, the linkage rod can drive the piston assembly to move downward for reset through the driving plate and the pull rod, and the piston assembly can be assisted in resetting by using the compression elastic force of the reset spring.

[0015] As a preferred technical solution of the present invention, one end of the linkage rod is inserted into the inner cavity of the driving groove, and the size of the linkage rod matches the size of the driving groove.

[0016] As a preferred technical solution of the present invention, the magnetic adsorption component includes a magnet disk, a circular groove opened at the bottom of the magnet disk and a threaded connecting column fixedly arranged at the top of the inner cavity of the second mounting cavity, a mounting hole is opened in the middle of the circular groove, the magnet disk is sleeved on the outside of the threaded connecting column through the mounting hole, and a fixing screw sleeve is sleeved on the outside of the threaded connecting column.

[0017] The beneficial effects of the present invention are:

[0018] 1. This type of multi-band suction cup antenna, the multi-band antenna pole is fixedly installed through a rotating connection mechanism, which is not only convenient for disassembly and assembly, but also when the suction cup antenna is hit by an external object during driving of the vehicle, the multi-band antenna pole can be folded in the direction away from the impact through the rotating connection mechanism. When passing through an obstacle, the folded multi-band antenna pole can be automatically reset under the drive of the rotating connection mechanism, which can effectively prevent the multi-band antenna pole from breaking after being hit by an external object, and has good impact resistance.

[0019] 2. For this type of multi-band suction cup antenna, when the suction cup antenna is hit by an external object and the multi-band antenna pole is folded in the direction away from the impact, the rotating connection mechanism can be linked to drive the negative pressure suction mechanism to perform a suction operation. The air inside the rubber suction cup is sucked by the negative pressure suction mechanism, so that negative pressure can be formed inside the rubber suction cup. The negative pressure can be used to temporarily assist in strengthening the adsorption strength of the suction cup antenna, so as to prevent the installed suction cup antenna from being scratched by obstacles during the driving of the car.

[0020] 3. This multi-band suction cup antenna is provided with a magnetic adsorption component. The magnetic force of the magnetic adsorption component can be used to quickly adsorb and fix the suction cup antenna on the roof, which is easy to install. When the suction cup antenna scrapes against an obstacle, the negative pressure suction mechanism sucks the air inside the rubber suction cup, so that negative pressure is formed inside the rubber suction cup. The negative pressure can temporarily enhance the adsorption strength. This solution adopts a combination of magnetic adsorption and negative pressure adsorption for double adsorption, which can not only prevent the installed suction cup antenna from being scraped off by obstacles during driving, but also solve the problem of poor adsorption strength of traditional rubber suction cups due to air leakage after long-term storage.

[0021] 4. This type of multi-band suction cup antenna can perform secondary locking and fixing on the multi-band antenna rod that is threadedly connected to the top of the rotating connection mechanism through a fixing component, thereby preventing the multi-band antenna rod from rotating loose due to bumps during vehicle movement, thereby affecting the normal use of the suction cup antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic cross-sectional structural diagram of a multi-band suction cup antenna of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the connection structure of the rotary connection mechanism, the fixed component and the multi-band antenna rod in the present invention;

[0026] Figure 4 It is a cross-sectional structural diagram of the base in the present invention from a first viewing angle;

[0027] Figure 5 is a cross-sectional structural diagram of the base in the present invention from a second viewing angle;

[0028] Figure 6 It is a cross-sectional structural schematic diagram of the base, the hollow vertical plate and the rotary connection mechanism in the present invention;

[0029] Figure 7 The present invention Figure 6 A is an enlarged structural diagram;

[0030] Figure 8 It is a schematic diagram of the installation structure of the negative pressure exhaust mechanism in the present invention;

[0031] Fig. 9 The present invention Figure 8 The enlarged structural diagram at B in FIG.

[0032] Fig.10 It is a schematic diagram of the connection structure between the rotary connection mechanism and the negative pressure exhaust mechanism in the present invention.

[0033] In the figure: 1, base; 101, base body; 102, first installation cavity; 103, second installation cavity; 104, annular exhaust channel; 105, negative pressure exhaust hole;

[0034] 2. rubber suction cup; 201. suction cup body; 202. annular sealing groove;

[0035] 3. Hollow vertical board;

[0036] 4. Rotary connection mechanism; 401. Hollow disc; 402. Connection kit; 403. Metal connector; 404. Bending portion; 405. First insulating sleeve; 406. Second insulating sleeve; 407. Torque spring; 408. Collector ring; 409. Linkage rod;

[0037] 5. Fixing assembly; 501. Connecting rod; 502. Fixing sleeve; 503. Locking knob;

[0038] 6. Multi-band antenna rod; 601. Multi-band antenna body; 602. Threaded connection sleeve; 603. Anti-slip bump;

[0039] 7. Cable; 701. Power feed core wire; 702. Ground feed core wire;

[0040] 8. Connector;

[0041] 9. Negative pressure exhaust mechanism; 901. outer shell; 902. pull rod; 903. drive plate; 904. piston assembly; 905. drive groove; 906. return spring; 907. exhaust pipe;

[0042] 10. Metal grounding plate;

[0043] 11. Magnetic adsorption component; 1101. Magnet disk; 1102. Circular groove; 1103. Threaded connection column; 1104. Fixing screw sleeve. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] Example: Figure 1-10As shown, a multi-band suction cup antenna comprises a base 1 and a rubber suction cup 2 fixedly arranged at the bottom of the base 1, a hollow vertical plate 3 is fixedly arranged on the top of the base 1, a rotating connection mechanism 4 is inserted through one side of the hollow vertical plate 3, a fixing component 5 is fixedly connected to the outer side of the rotating connection mechanism 4, a multi-band antenna rod 6 is inserted through the middle of the fixing component 5, and the multi-band antenna rod 6 and the rotating connection mechanism 4 are connected by threads, and the multi-band antenna rod 6 threadedly connected to the top of the rotating connection mechanism 4 can be locked and fixed by the fixing component 5 for a second time, so as to prevent the multi-band antenna rod 6 from rotating loose due to bumps during vehicle movement, thereby affecting the normal use of the suction cup antenna, a cable 7 is fixedly arranged on one side of the base 1, and a connector 8 is fixedly connected to one end of the cable 7, a negative pressure exhaust mechanism 9 and a metal grounding plate 10 are fixedly arranged in the inner cavity of the base 1, and a magnetic adsorption component 11 is fixedly arranged inside the base 1 below the metal grounding plate 10, so that when the suction cup antenna is hit by an external object during vehicle driving, The multi-band antenna rod 6 can be folded in the direction away from the impact through the rotating connection mechanism 4. When the suction cup antenna passes through an obstacle, the folded multi-band antenna rod 6 can be automatically reset under the drive of the rotating connection mechanism 4, which can effectively prevent the multi-band antenna rod 6 from being broken after being hit by an external object. Moreover, when the suction cup antenna is hit by an external object, the multi-band antenna rod 6 is folded in the direction away from the impact. The rotating connection mechanism 4 can be linked to drive the negative pressure exhaust mechanism 9 to perform an exhaust operation. The air inside the rubber suction cup 2 is sucked by the negative pressure exhaust mechanism 9, so that a negative pressure is formed inside the rubber suction cup 2. The negative pressure can be used to temporarily assist in strengthening the adsorption strength of the suction cup antenna. This solution adopts a combination of magnetic adsorption and negative pressure adsorption for double adsorption, which can not only prevent the installed suction cup antenna from being scratched by obstacles during the driving of the car, but also solve the problem of poor adsorption strength of the traditional rubber suction cup 2 due to air leakage after long-term storage.

[0046] The rotary connection mechanism 4 includes a hollow disk 401 and a connection kit 402 fixedly inserted on one side of the hollow vertical plate 3, a metal connector 403 is fixedly inserted on the top of the hollow disk 401, a bending portion 404 is provided at the bottom of the metal connector 403, a first insulating sleeve 405 and a second insulating sleeve 406 are fixedly sleeved on the outer side of the metal connector 403 and the outer side of the bending portion 404 respectively, the second insulating sleeve 406 is rotatably installed inside the connection kit 402 through a bearing, and a torque spring 407 is fixedly connected between the outer side of the second insulating sleeve 406 and the connection kit 402, a collector ring 408 is fixedly connected to one end of the bending portion 404, a linkage rod 409 is eccentrically provided on the outer side of the hollow disk 401, and the bending portion 404 is connected to the cable 7 through the collector ring 408, so that the bending portion 404 on the rotary connection mechanism 4 can rotate without affecting the electrical connection with the cable 7, and the first insulating sleeve 405 and the second insulating sleeve 406 can be provided. Insulating and protecting the metal connector 403 and the bent portion 404 can improve safety performance. Moreover, because the second insulating sleeve 406 is rotatably installed inside the connecting kit 402 through a bearing, when the suction cup antenna is hit by an external object during driving of the vehicle, the multi-band antenna rod 6 can be folded in a direction away from the impact through the rotating connecting mechanism 4. When the suction cup antenna passes through an obstacle, the folded multi-band antenna rod 6 and the rotating connecting mechanism 4 can be automatically reset under the drive of the torque spring 407 inside the rotating connecting mechanism 4, which can effectively prevent the multi-band antenna rod 6 from being broken after being hit by an external object. Moreover, when the suction cup antenna is hit by an external object, the multi-band antenna rod 6 can be folded in a direction away from the impact, which can drive the rotating connecting mechanism 4 to rotate. When the rotating connecting mechanism 4 rotates, the eccentrically arranged linkage rod 409 can be linked to drive the negative pressure exhaust mechanism 9 to perform exhaust operation.

[0047] Among them, the base 1 includes a base body 101 and a first installation cavity 102 and a second installation cavity 103 opened inside the base body 101. An annular exhaust channel 104 is opened on the base body 101 outside the first installation cavity 102. A negative pressure exhaust hole 105 is provided between the bottom of the annular exhaust channel 104 and the second installation cavity 103. When the rotary connection mechanism 4 drives the negative pressure exhaust mechanism 9 to perform the exhaust operation through the eccentrically arranged linkage rod 409, the negative pressure exhaust mechanism 9 can vacuum the inside of the second installation cavity 103 through the annular exhaust channel 104 and the negative pressure exhaust hole 105 opened on the base body 101, so that negative pressure can be formed inside the rubber suction cup 2. The rubber suction cup 2 can use the negative pressure to temporarily assist in strengthening the adsorption strength of the suction cup antenna.

[0048] Among them, the rubber suction cup 2 includes a suction cup body 201 fixedly installed at the bottom of the base body 101, and an annular sealing groove 202 is opened at the bottom of the suction cup body 201. When the suction cup antenna is hit by an external object and the multi-band antenna rod 6 is folded in the direction away from the impact, the rotating connection mechanism 4 can be linked to drive the negative pressure exhaust mechanism 9 to perform an exhaust operation. The air inside the rubber suction cup 2 is sucked by the negative pressure exhaust mechanism 9, so that a negative pressure can be formed inside the rubber suction cup 2. The rubber suction cup 2 can use the negative pressure to temporarily assist in strengthening the adsorption strength of the suction cup antenna. The double adsorption is performed by combining magnetic adsorption and negative pressure adsorption. It can not only prevent the installed suction cup antenna from being scratched by obstacles during the driving of the car, but also solve the problem of poor adsorption strength of the traditional rubber suction cup 2 due to air leakage when it is left for a long time. By setting an annular sealing groove 202 at the bottom of the suction cup body 201, the sealing performance of the rubber suction cup 2 can be improved, and the adsorption strength can be further improved.

[0049] Among them, the bending part 404 is connected to the cable 7 through the collector ring 408, and the collector ring 408 is fixedly installed on one side of the inner cavity of the hollow vertical plate 3 through a support rod. The bending part 404 and the cable 7 are connected through the collector ring 408, so that the bending part 404 on the rotating connection mechanism 4 can rotate without affecting the electrical connection with the cable 7.

[0050] Among them, the fixing component 5 includes a connecting rod 501 symmetrically fixedly installed on the outside of the rotating connection mechanism 4, a fixing sleeve 502 is fixedly connected to the top of the connecting rod 501, and a locking knob 503 is threadedly connected to the outside of the fixing sleeve 502. By rotating the locking knob 503 on the fixing component 5, the multi-band antenna rod 6 threadedly connected to the top of the rotating connection mechanism 4 can be locked and fixed for a second time, which can prevent the multi-band antenna rod 6 from rotating loose due to bumps during vehicle movement and affect the normal use of the suction cup antenna.

[0051] Among them, the multi-band antenna rod 6 includes a multi-band antenna body 601, a threaded connection sleeve 602 is fixed at the bottom end of the multi-band antenna body 601, and the threaded connection sleeve 602 matches the metal connector 403. The outer side of the threaded connection sleeve 602 is axially equidistantly provided with anti-slip bumps 603. The multi-band antenna rod 6 can be quickly connected and fixed to the metal connector 403 at the top of the rotating connection mechanism 4 through the threaded connection sleeve 602 at the bottom, which is convenient for installation and disassembly.

[0052] A feed core wire 701 and a ground feed core wire 702 are provided inside the cable 7 . One end of the feed core wire 701 is connected to the collector ring 408 , and one end of the ground feed core wire 702 is connected to the metal grounding plate 10 .

[0053] Among them, the negative pressure exhaust mechanism 9 includes an outer shell 901 fixedly installed in the inner cavity of the first installation cavity 102, a pull rod 902 is slidably inserted into the top of the outer shell 901, and the upper and lower ends of the pull rod 902 are respectively fixedly connected with a driving plate 903 and a piston assembly 904, a driving groove 905 is opened on the driving plate 903, and a return spring 906 is sleeved on the outer side of the pull rod 902. An exhaust pipe 907 is connected between one side of the bottom end of the outer shell 901 and the annular exhaust channel 104. When the suction cup antenna is hit by an external object, the multi-band antenna rod 6 is folded in the direction away from the impact, which can drive the rotating connection mechanism 4 to rotate. When the rotating connection mechanism 4 rotates, the eccentrically arranged linkage rod 409 cooperates with the driving groove 905 to drive the driving plate 903 on the negative pressure exhaust mechanism 9 to move upward, and when the driving plate 903 moves upward, the piston assembly can be pulled by the pull rod 902. 904 moves upward, and when the piston assembly 904 moves upward, it can cooperate with the outer shell 901 to perform a vacuum operation. The vacuum pipe 907, the annular vacuum channel 104 and the negative pressure vacuum hole 105 set on one side of the bottom end of the outer shell 901 can be used to evacuate the inside of the second installation cavity 103, so that negative pressure can be formed inside the rubber suction cup 2. The rubber suction cup 2 can use the negative pressure to temporarily assist in strengthening the adsorption strength of the suction cup antenna. When the suction cup antenna passes through an obstacle, the folded multi-band antenna rod 6 and the rotating connection mechanism 4 can be automatically reset under the drive of the torque spring 407 inside the rotating connection mechanism 4. When the rotating connection mechanism 4 drives the linkage rod 409 to reset, the linkage rod 409 can drive the piston assembly 904 to move downward for reset by driving the plate 903 and the pull rod 902. The compression elastic force of the reset spring 906 can assist in resetting the piston assembly 904.

[0054] Among them, one end of the linkage rod 409 is passed through the inner cavity of the driving groove 905, and the size of the linkage rod 409 matches the size of the driving groove 905. When the rotary connection mechanism 4 rotates, the eccentrically arranged linkage rod 409 is used in conjunction with the driving groove 905 to drive the driving plate 903 on the negative pressure exhaust mechanism 9 to move upward. When the driving plate 903 moves upward, the piston assembly 904 can be pulled upward through the pull rod 902 to perform the exhaust operation.

[0055] Among them, the magnetic adsorption component 11 includes a magnet disk 1101, a circular groove 1102 opened at the bottom of the magnet disk 1101 and a threaded connection column 1103 fixedly set at the top of the inner cavity of the second installation cavity 103. A mounting hole is opened in the middle of the circular groove 1102. The magnet disk 1101 is sleeved on the outside of the threaded connection column 1103 through the mounting hole. A fixing screw sleeve 1104 is sleeved on the outside of the threaded connection column 1103. By utilizing the magnetic force of the magnet disk 1101 on the magnetic adsorption component 11, the suction cup antenna can be quickly adsorbed and fixed on the roof, which is convenient to install. The magnet disk 1101 is locked and fixed by the threaded connection column 1103 and the fixing screw sleeve 1104, which is convenient for disassembly and assembly.

[0056] During operation, firstly, the multi-band antenna rod 6 is quickly connected and fixed to the metal connector 403 at the top of the rotary connection mechanism 4 through the threaded connection sleeve 602 at the bottom of the multi-band antenna rod 6, and then the multi-band antenna rod 6 threadedly connected to the top of the rotary connection mechanism 4 is locked and fixed for a second time through the locking knob 503 on the rotating fixing component 5, so as to prevent the multi-band antenna rod 6 from rotating and loosening due to bumps during the movement of the vehicle. After the multi-band antenna rod 6 is installed and fixed, the magnetic force of the magnet disk 1101 on the magnetic adsorption component 11 is used to adsorb and fix the suction cup antenna on the roof to complete the installation;

[0057] The bending portion 404 is connected to the cable 7 via a collector ring 408, so that the bending portion 404 on the rotary connection mechanism 4 can rotate without affecting the electrical connection with the cable 7. When the suction cup antenna is hit by an external object during driving of the vehicle, the multi-band antenna rod 6 can be folded in a direction away from the impact through the rotary connection mechanism 4. When the suction cup antenna passes through an obstacle, the folded multi-band antenna rod 6 and the rotary connection mechanism 4 can be automatically reset under the drive of the torque spring 407 inside the rotary connection mechanism 4, which can effectively prevent the multi-band antenna rod 6 from breaking after being hit by an external object.

[0058] When the suction cup antenna is hit by an external object, the multi-band antenna rod 6 can be folded in the direction away from the impact, which can drive the rotating connection mechanism 4 to rotate. When the rotating connection mechanism 4 rotates, the eccentrically arranged linkage rod 409 is used in conjunction with the driving groove 905 to drive the driving plate 903 on the negative pressure exhaust mechanism 9 to move upward. When the driving plate 903 moves upward, the piston assembly 904 can be pulled upward by the pull rod 902. When the piston assembly 904 moves upward, it can cooperate with the outer shell 901 to perform an exhaust operation. The exhaust pipe 907, the annular exhaust channel 104 and the negative pressure exhaust hole 105 arranged on one side of the bottom end of the outer shell 901 can be used to evacuate the inside of the second installation cavity 103, so that negative pressure can be formed inside the rubber suction cup 2. The rubber suction cup 2 can use the negative pressure to The adsorption strength of the suction cup antenna is temporarily strengthened. When the suction cup antenna passes through an obstacle, the folded multi-band antenna rod 6 and the rotating connection mechanism 4 can be automatically reset under the drive of the torque spring 407 inside the rotating connection mechanism 4. When the rotating connection mechanism 4 drives the linkage rod 409 to reset, the linkage rod 409 can drive the piston assembly 904 to move downward for reset by driving the plate 903 and the pull rod 902. At this time, the compression force of the reset spring 906 can be used to assist in resetting the piston assembly 904. This solution adopts a combination of magnetic adsorption and negative pressure adsorption for double adsorption, which can not only prevent the installed suction cup antenna from being scratched by obstacles during the driving of the car, but also solve the problem of poor adsorption strength of the traditional rubber suction cup 2 due to air deflation when it is left for a long time.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-band suction cup antenna, comprising a base (1) and a rubber suction cup (2) fixedly arranged at the bottom of the base (1), characterized in that: A hollow vertical plate (3) is fixedly provided on the top of the base (1), a rotatable connection mechanism (4) is inserted on one side of the hollow vertical plate (3), the rotatable connection mechanism (4) comprises a hollow disc (401) and a connection set (402) fixedly inserted on one side of the hollow vertical plate (3), a metal connector (403) is fixedly inserted on the top of the hollow disc (401), a bending portion (404) is provided at the bottom end of the metal connector (403), a first insulating sleeve (405) and a second insulating sleeve (406) are fixedly sleeved on the outer side of the metal connector (403) and the outer side of the bending portion (404), respectively, the second insulating sleeve (406) is rotatably mounted inside the connection set (402) via a bearing, A torque spring (407) is fixedly connected between the outer side of the second insulating sleeve (406) and the connecting sleeve (402); a collector ring (408) is fixedly connected to one end of the bent portion (404); a linkage rod (409) is eccentrically provided on the outer side of the hollow disc (401); a fixing assembly (5) is fixedly connected to the outer side of the rotary connecting mechanism (4); the fixing assembly (5) comprises a connecting rod (501) symmetrically fixedly mounted on the outer side of the rotary connecting mechanism (4); a fixing sleeve (502) is fixedly connected to the top end of the connecting rod (501); a locking knob (503) is threadedly connected to the outer side of the fixing sleeve (502); and a multi-band antenna rod (509) is inserted in the middle of the fixing assembly (5). 6), and the multi-band antenna rod (6) is connected to the rotating connection mechanism (4) by means of a threaded connection, a cable (7) is fixedly provided on one side of the base (1), a feed core wire (701) and a ground feed core wire (702) are provided inside the cable (7), one end of the feed core wire (701) is connected to a collector ring (408), one end of the ground feed core wire (702) is connected to a metal ground plate (10), one end of the cable (7) is fixedly connected to a connector (8), a negative pressure exhaust mechanism (9) and a metal ground plate (10) are fixedly provided in the inner cavity of the base (1), the negative pressure exhaust mechanism (9) comprises an outer shell (901) fixedly installed in the inner cavity of the first installation cavity (102), the outer shell (901) is A pull rod (902) is slidably inserted at the end, and the upper and lower ends of the pull rod (902) are respectively fixedly connected to a driving plate (903) and a piston assembly (904), and a driving groove (905) is opened on the driving plate (903). A return spring (906) is sleeved on the outer side of the pull rod (902), and a suction pipe (907) is connected between the bottom side of the outer shell (901) and the annular suction channel (104). One end of the linkage rod (409) is inserted into the inner cavity of the driving groove (905), and the size of the linkage rod (409) matches the size of the driving groove (905). A magnetic adsorption assembly (11) is fixedly provided inside the base (1) below the metal grounding plate (10).The magnetic adsorption component (11) comprises a magnet disk (1101), a circular groove (1102) provided at the bottom of the magnet disk (1101), and a threaded connection column (1103) fixedly arranged at the top of the inner cavity of the second installation cavity (103), wherein a mounting hole is provided in the middle of the circular groove (1102), the magnet disk (1101) is sleeved on the outer side of the threaded connection column (1103) through the mounting hole, and a fixing screw sleeve (1104) is sleeved on the outer side of the threaded connection column (1103).

2. The multi-band suction cup antenna according to claim 1, characterized in that: The base (1) comprises a base body (101) and a first installation cavity (102) and a second installation cavity (103) which are arranged inside the base body (101); an annular air extraction channel (104) is arranged on the base body (101) outside the first installation cavity (102); and a negative pressure air extraction hole (105) is provided between the bottom of the annular air extraction channel (104) and the second installation cavity (103).

3. The multi-band suction cup antenna according to claim 2, characterized in that: The rubber suction cup (2) comprises a suction cup body (201) fixedly mounted on the bottom of the base body (101), and an annular sealing groove (202) is provided at the bottom of the suction cup body (201).

4. The multi-band suction cup antenna according to claim 1, characterized in that: The bent portion (404) is connected to the cable (7) via a collector ring (408), and the collector ring (408) is fixedly mounted on one side of the inner cavity of the hollow vertical plate (3) via a support rod.

5. The multi-band suction cup antenna according to claim 1, characterized in that: The multi-band antenna rod (6) comprises a multi-band antenna body (601), a threaded connection sleeve (602) being fixedly provided at the bottom end of the multi-band antenna body (601), the threaded connection sleeve (602) matching the metal connector (403), and anti-slip bumps (603) being equidistantly provided axially on the outer side of the threaded connection sleeve (602).

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