Double-antenna spacing adjusting device

Abstract

The utility model relates to the technical field of communication equipment, and discloses a double-antenna spacing adjusting device, which comprises a fixed support, a transfer assembly and two antenna fixing assemblies. The transfer assembly is arranged at one end of the fixing support, one antenna fixing assembly is arranged at the other end of the fixing support, and the other antenna fixing assembly is arranged at the output end of the transfer assembly. According to the utility model, the transfer assembly drives the antennas on the two antenna fixing assemblies to be close to each other or far away from each other, and when the transfer assembly controls the two antenna fixing assemblies to be close to each other, the antennas can be adjusted to the closer positions at the same time, so that the occupied space is smaller; the transfer assembly adjusts the two antenna fixing assemblies to be far away from each other, so that the distance between the two antenna fixing assemblies is adjusted to be larger than 1 m, the requirement that the lifting rod carries the two antennas for simultaneous communication is met, and mutual communication interference of the two antennas installed on the antenna fixing assemblies is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment, and in particular to a dual-antenna spacing adjustment device. Background Art

[0002] When vehicles need to communicate using two sets of on-board antennas, the antennas generally need to be raised to a height of more than 7 meters from the ground using a lifting mast to ensure that long-distance communication signals are not interfered with by environmental factors. At the same time, to prevent signal interference between antennas, the distance between the two antennas generally needs to be greater than 1 meter.

[0003] Currently, dual-antenna communication between vehicles generally uses two sets of lifting masts, each lifting two antenna mounting assemblies and driving the vehicle-mounted antennas for communication. This solution suffers from issues such as large overall space requirements, high cost, difficulty controlling antenna spacing, interference caused by close proximity, and complex maintenance. Therefore, there is an urgent need to develop a dual-antenna spacing adjustment device between vehicles that is compact when retracted, controllable when deployed, minimizes inter-antenna interference, and is low-cost. Utility Model Content

[0004] The purpose of the utility model is to provide a dual-antenna spacing adjustment device, which has a compact structure, controllable antenna spacing when deployed, small interference between antennas, and low cost.

[0005] In order to achieve the above object, the present invention provides a dual-antenna spacing adjustment device, comprising:

[0006] Fixed bracket;

[0007] A transfer assembly, the transfer assembly being arranged at one end of the fixing bracket;

[0008] Antenna fixing components, two antenna fixing components are provided, one antenna fixing component is provided at the other end of the fixing bracket, and the other antenna fixing component is provided at the output end of the transfer component, and the transfer component is used to drive one antenna fixing component to move closer to or away from the other antenna fixing component.

[0009] Preferably, the transfer assembly comprises:

[0010] a first box body, wherein the first box body is arranged on the fixing bracket;

[0011] a first driving mechanism, the first driving mechanism being disposed in the first housing;

[0012] a first transmission mechanism, the first transmission mechanism being disposed in the first housing, the first drive mechanism being in transmission connection with the first transmission mechanism;

[0013] a first swing arm, the first swing arm being arranged on the first box body and having one end thereof being transmission-connected to the first transmission mechanism;

[0014] A movable bracket, one end of which is connected to the other end of the first swing arm, wherein one of the antenna fixing components is arranged at the other end of the movable bracket.

[0015] Preferably, the first driving mechanism includes a driving motor and a first planetary reducer provided on the driving motor;

[0016] The first transmission mechanism includes a first gear transmission mechanism, a first worm gear transmission mechanism, and a second planetary reducer arranged between the first gear transmission mechanism and the first worm gear transmission mechanism. The drive motor outputs torque and transmits it to the first planetary reducer. The torque output direction is converted by the first gear transmission mechanism and transmitted to the second planetary reducer and the first worm gear transmission mechanism, thereby driving the movable bracket to rotate in the horizontal direction of ±180°.

[0017] Preferably, the first gear transmission mechanism includes a gearbox, an intermediate gear arranged in the gearbox, an input gear, and an output gear. The intermediate gear, the input gear, and the output gear are engaged with each other. The input gear receives the torque transmitted by the first planetary reducer and transmits it to the output gear through the intermediate gear. The output gear transmits the torque to the second planetary reducer.

[0018] Preferably, the first drive mechanism further includes a hand-cranked input mechanism arranged outside the first housing, and the first gear transmission mechanism further includes a hand-cranked gear, which can transmit torque to the intermediate gear through manual input of the hand-cranked input mechanism, and transmit torque to the second planetary reducer through the output gear.

[0019] Preferably, the hand-cranked input mechanism includes a hand-cranked lever, one end of which is fixedly connected to the hand-cranked gear via a pin, and the other end of which extends out of the first box body, and a lip sealing ring is provided at the connection between the hand-cranked lever and the first box body.

[0020] Preferably, the first worm gear transmission mechanism includes a worm, a worm wheel, a worm wheel shaft, a bump block and two electric limit members. The worm is connected to the second planetary reducer, the worm drives the worm wheel and drives the worm wheel shaft to rotate, one end of the first swing arm is connected to the worm wheel shaft, the bump block is fixed on the worm wheel shaft, and the two electric limit members are symmetrically arranged on the inner side wall of the first box body with the worm wheel shaft as the axis.

[0021] Preferably, limiting protrusions are provided on both the left and right sides of the first swing arm, and when the first swing arm rotates to 0° or 180°, the limiting protrusions abut against the first box body.

[0022] Preferably, the first housing is divided into three chambers, the first gear transmission mechanism is located in the first chamber, the drive motor, the first planetary reducer and the second planetary reducer are located in the second chamber, and the first worm gear transmission mechanism is located in the third chamber.

[0023] Preferably, the antenna fixing assembly includes a second box body and a second driving mechanism arranged in the second box body, a second transmission mechanism, a second swing arm arranged on the second box body and transmission connected to the second transmission mechanism, and a fixing seat for fixing the antenna arranged at one end of the second swing arm away from the second transmission mechanism. The second driving mechanism is transmission connected to the second transmission mechanism, and the second driving mechanism drives the second transmission mechanism to rotate in the vertical direction and thereby drives the fixing seat to rotate in the vertical direction.

[0024] The beneficial effect of the present invention is that the antennas on the two antenna fixing assemblies are driven to move closer to or away from each other by the transfer assembly. When the transfer assembly controls the two sets of antenna fixing assemblies to move closer to each other, the antennas can be adjusted to a position with a closer distance at the same time, occupying less space. When in the distant state, the transfer assembly adjusts the two sets of antenna fixing assemblies to move away from each other so as to adjust the distance between the two to be greater than 1m, which not only ensures the simultaneous communication requirements of the two sets of antennas carried by the lifting rod, but also avoids interference in the communication between the two sets of antennas installed on the antenna fixing assemblies.

[0025] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 A schematic structural diagram of a dual-antenna spacing adjustment device according to an embodiment of the present invention is shown;

[0028] Figure 2 A schematic diagram of the first box structure of an embodiment of the present utility model is shown;

[0029] Figure 3 A schematic diagram showing the internal structure connection of the first box body according to one embodiment of the present invention is shown;

[0030] Figure 4A schematic structural diagram of a first gear transmission mechanism according to an embodiment of the present invention is shown;

[0031] Figure 5 A schematic structural diagram of a first worm gear transmission mechanism according to an embodiment of the present invention is shown;

[0032] Figure 6 A schematic diagram of a position limiting protrusion installation structure of an embodiment of the present utility model is shown;

[0033] Figure 7 A schematic diagram of the structure of a hand-cranked input mechanism according to an embodiment of the present invention is shown;

[0034] Figure 8 A schematic structural diagram of an antenna fixing assembly according to an embodiment of the present invention is shown;

[0035] Figure 9 A schematic diagram of a dual-antenna spacing adjustment device in an embodiment of the present invention in an unfolded state is shown;

[0036] Figure 10 A schematic diagram of a dual-antenna spacing adjustment device in a retracted state according to an embodiment of the present invention is shown.

[0037] Description of reference numerals:

[0038] 1Fixing bracket;

[0039] 2 transfer assembly, 21 first box, 22 first driving mechanism, 23 first transmission mechanism, 24 first swing arm, 241 limiting protrusion, 25 movable bracket;

[0040] 211 first chamber, 212 second chamber, 213 third chamber;

[0041] 221 driving motor, 222 first planetary reducer, 223 hand crank input mechanism, 2231 hand crank lever, 2232 pin, 2233 lip seal ring, 2234 indicator mark;

[0042] 231 first gear transmission mechanism, 2311 gear box, 2312 intermediate gear, 2313 input gear, 2314 output gear, 2315 hand crank gear;

[0043] 232 first worm gear transmission mechanism, 2321 worm, 2322 worm wheel, 2323 worm wheel shaft, 2324 bumper, 2325 electric limiter, 233 second planetary reducer;

[0044] 3 Antenna fixing assembly, 31 second box, 32 second driving mechanism, 33 second transmission mechanism, 34 second swing arm, 35 fixing base. DETAILED DESCRIPTION

[0045] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0046] Please refer to Figures 1-10 The dual-antenna spacing adjustment device of this embodiment includes a fixing bracket 1, a transfer assembly 2, and two antenna fixing assemblies 3. The transfer assembly 2 is disposed at one end of the fixing bracket 1, one antenna fixing assembly 3 is disposed at the other end of the fixing bracket 1, and the other antenna fixing assembly 3 is disposed at the output end of the transfer assembly 2. The transfer assembly 2 is used to drive one antenna fixing assembly 3 toward or away from the other antenna fixing assembly 3.

[0047] When adjusting the spacing, the distance between the two antenna fixing components 3 is the shortest in the initial state (e.g. Figure 10 When needed, the transfer component 2 controls one antenna fixing component 3 to move away from the other antenna fixing component 3, thereby increasing the distance between the two antenna fixing components 3, that is, expanding the distance between the two antennas, which is set to a distance greater than 1m (such as Figure 9 to avoid mutual interference between the two antennas.

[0048] In this embodiment, please refer to Figure 2 and Figure 3 The transfer assembly 2 includes a first housing 21, a first drive mechanism 22, a first transmission mechanism 23, a first swing arm 24, and a movable bracket 25. The first housing 21 is mounted on the fixed bracket 1, and the first drive mechanism 22 and the first transmission mechanism 23 are both mounted within the first housing 21. The first drive mechanism 22 is in transmission connection with the first transmission mechanism 23. The first swing arm 24 is mounted on the first housing 21, with one end thereof in transmission connection with the first transmission mechanism 23. One end of the movable bracket 25 is connected to the other end of the first swing arm 24, and one antenna fixing assembly 3 is mounted at the other end of the movable bracket 25.

[0049] In this embodiment, the first drive mechanism 22 includes a drive motor 221 and a first planetary reducer 222 arranged on the drive motor 221. The first transmission mechanism 23 includes a first gear transmission mechanism 231, a first worm gear transmission mechanism 232, and a second planetary reducer 233 arranged between the first gear transmission mechanism 231 and the first worm gear transmission mechanism 232. The drive motor 221 outputs torque and transmits it to the first planetary reducer 222. The torque output direction is converted by the first gear transmission mechanism 231 and transmitted to the second planetary reducer 233 and the first worm gear transmission mechanism 232, thereby driving the movable bracket 25 to rotate in the horizontal direction ±180°, thereby changing the distance between the two antenna fixing components 3.

[0050] Please refer to Figure 4 The first gear transmission mechanism 231 includes a gear box 2311, an intermediate gear 2312 arranged in the gear box 2311, an input gear 2313, and an output gear 2314, wherein the intermediate gear 2312, the input gear 2313, and the output gear 2314 are engaged with each other, the input gear 2313 receives the torque transmitted by the first planetary reducer 222, and transmits it to the output gear 2314 through the intermediate gear 2312, and the output gear 2314 transmits the torque to the second planetary reducer 233.

[0051] More specifically, the first drive mechanism 22 also includes a hand-cranked input mechanism 223 arranged outside the first box body 21, and the first gear transmission mechanism 231 also includes a hand-cranked gear 2315. The hand-cranked gear 2315 can manually input torque through the hand-cranked input mechanism 223 to transmit it to the intermediate gear 2312, and transmit torque to the second planetary reducer 233 through the output gear 2314, thereby realizing both motor drive and manual human drive functions.

[0052] Please refer to Figure 7 The manual crank input mechanism 223 includes a crank lever 2231. One end of the crank lever 2231 is fixedly connected to the crank gear 2315 via a pin 2232. The other end of the crank lever 2231 extends out of the first housing 21. A lip seal 2233 is provided at the connection between the crank lever 2231 and the first housing 21. In addition, an indicator mark 2234 is provided on the outside of the first housing 21 to indicate the direction of the antenna's erection and lowering movements, facilitating operator operation. The manual drive torque is transmitted to the crank gear 2315, thereby achieving the manual drive function. The lip seal 2233 is used to seal the first housing 21.

[0053] Please refer to Figure 5The first worm gear transmission mechanism 232 includes a worm 2321, a worm wheel 2322, a worm wheel shaft 2323, a bumper 2324, and two electric limiters 2325. The worm 2321 is connected to the second planetary reducer 233. The worm 2321 drives the worm wheel 2322 and drives the worm wheel shaft 2323 to rotate. One end of the first swing arm 24 is connected to the worm wheel shaft 2323. The bumper 2324 is fixed to the worm wheel shaft 2323. The two electric limiters 2325 are symmetrically arranged on the inner side wall of the first box body 21 with the worm wheel shaft 2323 as the axis. In the retracted state or the deployed state, the bumper 2324 interacts with one of the electric limiters 2325, thereby realizing the electric limit function. Specifically, the electric limiter 2325 includes an electric limit mounting plate and a limit switch. There are two electric limit mounting plates and two limit switches, each of which is distributed at two extreme positions approximately 180 degrees apart. Preferably, the electric limit mounting plate is provided with an oblong hole, so that the position of the limit switch can be adjusted, and the erection and inversion angles of the antenna can be precisely controlled.

[0054] To make the rotation more stable, two first swing arms 24 can be provided, and the two first swing arms 24 are respectively provided at both ends of the worm gear shaft 2323. Specifically, the portion of the worm gear shaft 2323 exposed from the first housing 21 is connected to the two first swing arms 24. The connection here is preferably that the top of the worm gear shaft 2323 and the upper first swing arm 24 are fixed by a combination of screws and pins, so that the lifting structure can bear the load value; the bottom end of the worm gear shaft 2323 is provided with a flat structure, which cooperates with the flat hole of the first swing arm 24 below. The end of the lower first swing arm 24 is tightened by screws, causing the end of the lower first swing arm 24 to deform, thereby achieving the clamping function of the lower first swing arm 24 and the output shaft. Preferably, a movable bracket 25 is connected between the two first swing arms 24, and the two first swing arms 24 simultaneously drive the movable bracket 25 to rotate.

[0055] Please refer to Figure 6 A limit protrusion 241 is provided on both sides of the left and right sides of the first swing arm 24. When the first swing arm 24 rotates to 0° or 180°, the limit protrusion 241 abuts against the first box body 21, so that when the electric limit component fails, the mechanical limit ensures that the movable bracket 25 stops at the corresponding position.

[0056] Please refer to Figure 2 and Figure 3The first housing 21 is divided into three chambers. The first gear transmission mechanism 231 is located in the first chamber 211, the drive motor 221, the first planetary reducer 222, and the second planetary reducer 233 are located in the second chamber 212, and the first worm gear transmission mechanism 232 is located in the third chamber 213. The three chambers can be separated by a partition. The drive motor 221 is mounted perpendicularly to the first planetary reducer 222. The first planetary reducer 222 and the second planetary reducer 233 are both mounted on the gearbox 2311. The worm 2321 is coaxially arranged with the second planetary reducer 233. The output end of the second planetary reducer 233 extends through the partition to the third chamber 213 and is in transmission connection with the worm 2321. The worm 2321 and worm wheel shaft 2323 of the first worm gear transmission mechanism 232 are mounted perpendicular to each other, which facilitates full utilization of the housing space and achieves a compact overall layout. The first chamber 211 also has a debugging cover that can be opened and closed for later installation and maintenance.

[0057] Preferably, the antenna fixing assembly 3 includes a second box body 41 and a second driving mechanism 32 arranged in the second box body 41, a second transmission mechanism 33, a second swing arm 34 arranged on the second box body 31 and transmission connected to the second transmission mechanism 433, and a fixing seat 35 for fixing the antenna arranged at the end of the second swing arm 34 away from the second transmission mechanism 33. The second driving mechanism 32 is transmission connected to the second transmission mechanism 33. The second driving mechanism 32 drives the second transmission mechanism 33 to rotate in the vertical direction and thereby drives the fixing seat 35 to rotate in the vertical direction.

[0058] The second drive mechanism 32 and second transmission mechanism 33 in this embodiment are structurally similar to the first drive mechanism 22 and first transmission mechanism 23. The difference lies in their function to drive the mounting base 35 to rotate vertically within ±90°. During installation, the antenna is mounted within the mounting hole on the mounting base 35. When deployed, the second transmission mechanism 33 drives the mounting base 35 to rotate upward 90°, orienting the antenna upward. Alternatively, a structure similar to the electrical limiter 2325 and the limit protrusion 241 can be provided to limit the second swing arm 34 to only 90° of vertical rotation.

[0059] In summary, this embodiment uses the transfer assembly 2 to move the antennas on the two antenna fixing assemblies 3 toward or away from each other. When the transfer assembly 2 controls the two antenna fixing assemblies 3 toward each other, it can simultaneously adjust the antennas to a closer position, thus occupying less space. When the two antenna fixing assemblies 3 are moved away from each other, the transfer assembly 2 adjusts the distance between them to greater than 1 meter. This not only ensures that the two antennas mounted on the lifting mast can communicate simultaneously, but also prevents interference between the two antennas mounted on the antenna fixing assemblies. This utility model has wide application and significant economic and social benefits.

[0060] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple variations can be made to the technical solution of the present invention, and these simple variations all fall within the scope of protection of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0061] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A dual-antenna spacing adjustment device, characterized in that: include: Fixed bracket; A transfer assembly, the transfer assembly being arranged at one end of the fixing bracket; Antenna fixing components, two antenna fixing components are provided, one antenna fixing component is provided at the other end of the fixing bracket, and the other antenna fixing component is provided at the output end of the transfer component, and the transfer component is used to drive one antenna fixing component to move closer to or away from the other antenna fixing component.

2. The dual-antenna spacing adjustment device according to claim 1, characterized in that: The transfer assembly includes: a first box body, wherein the first box body is arranged on the fixing bracket; a first driving mechanism, the first driving mechanism being disposed in the first housing; a first transmission mechanism, the first transmission mechanism being disposed in the first housing, the first drive mechanism being in transmission connection with the first transmission mechanism; a first swing arm, the first swing arm being arranged on the first box body and having one end thereof being transmission-connected to the first transmission mechanism; A movable bracket, one end of which is connected to the other end of the first swing arm, wherein one of the antenna fixing components is arranged at the other end of the movable bracket.

3. The dual-antenna spacing adjustment device according to claim 2, characterized in that: The first driving mechanism includes a driving motor and a first planetary reducer provided on the driving motor; The first transmission mechanism includes a first gear transmission mechanism, a first worm gear transmission mechanism, and a second planetary reducer arranged between the first gear transmission mechanism and the first worm gear transmission mechanism. The drive motor outputs torque and transmits it to the first planetary reducer. The torque output direction is converted by the first gear transmission mechanism and transmitted to the second planetary reducer and the first worm gear transmission mechanism, thereby driving the movable bracket to rotate in the horizontal direction of ±180°.

4. The dual-antenna spacing adjustment device according to claim 3, characterized in that: The first gear transmission mechanism includes a gearbox, an intermediate gear arranged in the gearbox, an input gear, and an output gear. The intermediate gear, the input gear, and the output gear are engaged with each other. The input gear receives the torque transmitted by the first planetary reducer and transmits it to the output gear through the intermediate gear. The output gear transmits the torque to the second planetary reducer.

5. The dual-antenna spacing adjustment device according to claim 4, characterized in that: The first drive mechanism also includes a manual input mechanism arranged outside the first housing, and the first gear transmission mechanism also includes a manual gear. The manual gear can transmit torque to the intermediate gear manually through the manual input mechanism, and transmit torque to the second planetary reducer through the output gear.

6. The dual-antenna spacing adjustment device according to claim 5, characterized in that: The hand-crank input mechanism includes a hand-crank lever, one end of which is fixedly connected to the hand-crank gear via a pin, and the other end of which extends out of the first box body. A lip sealing ring is provided at the connection between the hand-crank lever and the first box body.

7. The dual-antenna spacing adjustment device according to claim 3, characterized in that: The first worm gear transmission mechanism includes a worm, a worm wheel, a worm wheel shaft, a bump block and two electric limiters. The worm is connected to the second planetary reducer, the worm drives the worm wheel and drives the worm wheel shaft to rotate, one end of the first swing arm is connected to the worm wheel shaft, the bump block is fixed on the worm wheel shaft, and the two electric limiters are symmetrically arranged on the inner side wall of the first box body with the worm wheel shaft as the axis.

8. The dual-antenna spacing adjustment device according to claim 7, characterized in that: Limiting protrusions are provided on both the left and right sides of the first swing arm. When the first swing arm rotates to 0° or 180°, the limiting protrusions abut against the first box body.

9. The dual-antenna spacing adjustment device according to claim 3, characterized in that: The first housing is divided into three chambers. The first gear transmission mechanism is located in the first chamber. The drive motor, the first planetary reducer and the second planetary reducer are located in the second chamber. The first worm gear transmission mechanism is located in the third chamber.

10. The dual-antenna spacing adjustment device according to any one of claims 1 to 9, characterized in that: The antenna fixing assembly includes a second box body and a second driving mechanism arranged in the second box body, a second transmission mechanism, a second swing arm arranged on the second box body and transmission connected to the second transmission mechanism, and a fixing seat for fixing the antenna arranged at one end of the second swing arm away from the second transmission mechanism. The second driving mechanism is transmission connected to the second transmission mechanism, and the second driving mechanism drives the second transmission mechanism to rotate in the vertical direction, thereby driving the fixing seat to rotate in the vertical direction.

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