Double-antenna automatic unfolding and folding device

Abstract

The invention relates to the technical field of communication equipment, and discloses a double-antenna automatic unfolding and folding device which comprises a lower fixing frame. The upper deflection assembly is arranged at one end of the lower fixing frame; one end of the upper fixing frame is in transmission connection with the output end of the upper deflection assembly, the upper fixing frame is located above the lower fixing frame, and the upper deflection assembly is used for driving the upper fixing frame to rotate in the horizontal direction; and the number of the lodging execution assemblies is two, and the two lodging execution assemblies are arranged at the other end of the lower fixing frame and the end, away from the upper deflection assembly, of the upper fixing frame correspondingly. The antenna is compact in structure, controllable in antenna spacing when unfolded, small in interference between antennas and low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment, and in particular to a dual-antenna automatic deployment and retraction device. Background Art

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

[0003] At present, for the dual-antenna communication between vehicles, two sets of lifting rods are generally used to lift two sets of lodging execution components and drive the vehicle-mounted antennas for communication. This solution has the problems of large overall space occupation, high cost, difficult to control the antenna distance, interference when too close, and complex maintenance. Therefore, it is urgent to develop a dual-antenna automatic deployment and withdrawal device between vehicles with a compact structure when withdrawn, controllable antenna spacing when deployed, small interference between antennas, and low cost. Summary of the invention

[0004] The object of the present invention is to provide a dual-antenna automatic deployment and retraction 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 automatic deployment and retraction device, comprising:

[0006] Lower fixing frame;

[0007] An upper deflection assembly, the upper deflection assembly being arranged at one end of the lower fixing frame;

[0008] An upper fixed frame, one end of which is transmission-connected to the output end of the upper deflection assembly and is located above the lower fixed frame, and the upper deflection assembly is used to drive the upper fixed frame to rotate in the horizontal direction;

[0009] The lodging execution assembly is provided with two lodging execution assemblies, and the two lodging execution assemblies are respectively arranged at the other end of the lower fixing frame and the end of the upper fixing frame away from the upper deflection assembly.

[0010] Preferably, the upper deflection assembly comprises:

[0011] A first box body, wherein the first box body is arranged on the lower fixing frame;

[0012] a first driving mechanism, wherein the first driving mechanism is disposed in the first housing;

[0013] a first transmission mechanism, the first transmission mechanism is disposed in the first housing, and the first driving mechanism is transmission-connected to the first transmission mechanism;

[0014] The first swing arm is arranged on the first box body, one end of which is in transmission connection with the first transmission mechanism, and one end of the first swing arm away from the first transmission mechanism is connected with the upper fixing frame.

[0015] Preferably, the first driving mechanism comprises a driving motor and a first planetary reducer arranged 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 upper fixed frame to rotate in the horizontal direction of ±180°.

[0017] Preferably, the first gear transmission mechanism includes a gear box, an intermediate gear arranged in the gear box, an input gear, and an output gear. The intermediate gear, the input gear, and the output gear are meshed 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 driving mechanism also includes a hand-cranked input mechanism arranged outside the first housing body, and the first gear transmission mechanism also includes a hand-cranked gear, and the hand-cranked gear can transmit torque to the intermediate gear through manual input torque 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 comprises a hand-cranked lever, one end of which is fixedly connected to the hand-cranked gear via a pin, 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 transmission-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, both left and right sides of the first swing arm are provided with limiting protrusions, 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 lodging execution component includes a second box body and a second driving mechanism, a second transmission mechanism, a second swing arm, which is arranged on the second box body and is transmission-connected to the second transmission mechanism, and a fixing seat for fixing the antenna, which is 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.

[0024] The beneficial effects of the present invention are: the upper fixed frame is driven to rotate 180° in the horizontal direction by the upper deflection assembly, thereby controlling the antennas on the two lodging execution assemblies to be deployed or retracted. In the retracted state, the two lodging execution assemblies can simultaneously retract the antennas to a position close to each other, occupying less space. In the deployed state, the distance between the two lodging execution assemblies is greater than 1m, which not only ensures the need for the two antennas on the lifting rod to communicate simultaneously, but also avoids the two antennas installed on the lodging execution assemblies from interfering with each other. The present invention can be widely used, with obvious economic and social effects.

[0025] Other features and advantages of the present invention will be described in detail in the following detailed description. 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 automatic deployment and retraction device according to an embodiment of the present invention is shown;

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

[0029] Figure 3 A schematic diagram showing the internal structure connection of a first box body according to an 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 limiting protrusion installation structure according to an embodiment of the present invention 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 diagram of the structure of a lodging execution component according to an embodiment of the present invention is shown;

[0035] Fig. 9 A schematic diagram showing a deployed state of a dual-antenna automatic deployment and retraction device according to an embodiment of the present invention is shown;

[0036] Fig.10 A schematic diagram of a retracted state of a dual-antenna automatic deployment and retraction device according to an embodiment of the present invention is shown.

[0037] Description of reference numerals:

[0038] 1 lower fixing frame;

[0039] 2 upper deflection assembly, 21 first box, 22 first driving mechanism, 23 first transmission mechanism, 24 first swing arm, 241 limiting protrusion;

[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 gear;

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

[0044] 3 lower fixing frame, 4 lodging execution assembly, 41 second box body, 42 second driving mechanism, 43 second transmission mechanism, 44 second swing arm, 45 fixing seat. DETAILED DESCRIPTION

[0045] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0046] Please refer to Figure 1-Figure 10 The dual-antenna automatic deployment and retraction device of this embodiment includes a lower fixed frame 1, an upper deflection assembly 2, an upper fixed frame 3 and two lodging execution assemblies 4. Among them, the upper deflection assembly 2 is arranged at one end of the lower fixed frame 1 and is located above the lower fixed frame 1. One end of the upper fixed frame 3 is transmission-connected to the output end of the upper deflection assembly 2. The upper deflection assembly 2 is used to drive the upper fixed frame 3 to rotate in the horizontal direction. The upper fixed frame 3 does not interfere with the lower fixed frame 1 during rotation. The two lodging execution assemblies 4 are respectively arranged at the other end of the lower fixed frame 1 and the end of the upper fixed frame 3 away from the upper deflection assembly 2.

[0047] Assuming that the left direction is the positive direction, when in use, first install the two antennas on the two lodging actuators 4 respectively. When it is necessary to unfold, the upper fixing frame 3 is driven by the upper deflection assembly 2 to rotate +180° in the horizontal direction so that the upper fixing frame 3 and the lower fixing frame 1 are extended to the longest state (such as Fig. 9 As shown in the figure, the horizontal length of the upper fixing frame 3 and the lower fixing frame 1 is greater than 1m, so that the distance between the two antennas is greater than 1m, thereby avoiding mutual interference between the two antennas. When it is necessary to withdraw, the upper fixing frame 3 is driven by the upper yaw assembly 2 to rotate -180° in the horizontal direction so that the upper fixing frame 3 and the lower fixing frame 1 are retracted to the shortest state, that is, the distance between the two antennas is the shortest (as shown in the figure). Fig.10 As shown), the entire device occupies a small space and improves space utilization.

[0048] In this embodiment, please refer to Figure 2 and Figure 3 The upper deflection assembly 2 includes a first box 21, a first driving mechanism 22, a first transmission mechanism 23 and a first swing arm 24. The first box 21 is arranged on the lower fixed frame 1, the first driving mechanism 22 and the first transmission mechanism 23 are both arranged in the first box 21; the first driving mechanism 22 is in transmission connection with the first transmission mechanism 23, the first swing arm 24 is arranged on the first box 21, one end of which is in transmission connection with the first transmission mechanism 23, and the end of the first swing arm 24 away from the first transmission mechanism 23 is connected to the upper fixed frame 3.

[0049] In this embodiment, the first driving mechanism 22 includes a driving motor 221 and a first planetary reducer 222 arranged on the driving motor 221, and 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 driving 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 upper fixed frame 3 to rotate in the horizontal direction of ±180°.

[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 meshed 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 driving 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 transmit the torque manually input by the hand-cranked input mechanism 223 to the intermediate gear 2312, and transmit the torque to the second planetary reducer 233 through the output gear output gear 2314, thereby realizing the two functions of motor drive and manual human drive.

[0052] Please refer to Figure 7 The manual input mechanism 223 includes a manual lever 2231, one end of which is fixedly connected to the manual gear 2315 by a pin 2232, and the other end of the manual lever 2231 extends out of the first box 21. A lip seal ring 2233 is provided at the connection between the manual lever 2231 and the first box 21. In addition, an indicator mark 2234 is provided on the outside of the first box 21 to indicate the shaking direction of the antenna erection and lying action, which is convenient for the staff to operate. The manual drive torque is transmitted to the manual gear 2315 to realize the manual drive function; the lip seal ring 2233 is used to close the first box 21 and play a sealing role.

[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 bump block 2324 and two electric limit members 2325. The worm 2321 is connected to the second planetary reducer 233 in transmission. 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 bump block 2324 is fixed on the worm wheel shaft 2323. The two electric limit members 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 unfolded state, the bump block 2324 acts on one of the electric limit members 2325, thereby realizing the electric limit function. Specifically, the electric limit member 2325 includes an electric limit mounting plate and a limit switch. The number of the electric limit mounting plate and the limit switch are both 2, distributed in two extreme positions of about 180°. Preferably, the electric limit mounting plate is provided with an oblong hole, so that the position of the limit switch can be adjusted to accurately control the erection and inversion angles of the antenna.

[0054] In order 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 the two ends of the worm gear shaft 2323. Specifically, the part of the worm gear shaft 2323 exposed from the first box body 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 first swing arm 24 placed on it are fixed by a combination of screws and pins, and the lifting structure can bear the load value; a flat structure is provided at the bottom end of the worm gear shaft 2323, which cooperates with the flat hole of the first swing arm 24 below, and the end of the first swing arm 24 below is tightened by a screw, so that the end of the first swing arm 24 below is deformed, thereby realizing the clamping function of the first swing arm 24 below and the output shaft. Preferably, the upper fixing frame 3 is connected between the two first swing arms 24, and the two first swing arms 24 simultaneously drive the upper fixing frame 3 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 assembly fails, the mechanical limit ensures that the upper fixing frame 3 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 driving 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 driving motor 221 is vertically mounted on the first planetary reducer 222, the first planetary reducer 222 and the second planetary reducer 233 are both arranged on the gear box 2311, the worm 2321 is coaxially arranged with the second planetary reducer 233, wherein the output end of the second planetary reducer 233 extends through the partition to the third chamber 213, and is connected to the worm 2321 in transmission. The worm 2321 and the worm wheel shaft 2323 of the first worm gear transmission mechanism 232 are installed vertically to each other, which is conducive to making full use of the housing space and realizing a clever and 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 lodging execution component 4 includes a second box body 41 and a second driving mechanism 42 arranged in the second box body 41, a second transmission mechanism 43, a second swing arm 44 arranged on the second box body 41 and transmission connected to the second transmission mechanism 43, and a fixing seat 45 for fixing the antenna arranged at the end of the second swing arm 44 away from the second transmission mechanism 43. The second driving mechanism 42 is transmission connected to the second transmission mechanism 43, and the second driving mechanism 42 drives the second transmission mechanism 43 to rotate in the vertical direction, thereby driving the fixing seat 45 to rotate in the vertical direction.

[0058] The second drive mechanism 42 and the second transmission mechanism 43 in this embodiment are substantially the same in structure as the first drive mechanism 22 and the first transmission mechanism 23, except that the second drive mechanism 42 and the second transmission mechanism 43 are used to drive the fixing seat 45 to rotate ±90° in the vertical direction. During the specific installation, the antenna is installed in the fixing hole on the fixing seat 45. When it needs to be deployed, the fixing seat 45 is driven by the second transmission mechanism 43 to rotate 90° upward so that the antenna is facing upward, and vice versa. A structure similar to the electric limiter 2325 and the limit protrusion 241 can also be provided to limit the second swing arm 54 to rotate only 90° in the vertical direction.

[0059] In summary: this embodiment drives the upper fixing frame 3 to rotate 180° in the horizontal direction through the upper deflection component 2, thereby controlling the antennas on the two lodging execution components 4 to be deployed or retracted. In the retracted state, the two groups of lodging execution components 4 can simultaneously retract the antennas to a position close to each other, occupying less space. In the deployed state, the distance between the two groups of lodging execution components 4 is greater than 1m, which not only ensures the need for the two groups of antennas on the lifting rod to communicate simultaneously, but also avoids the two groups of antennas installed on the lodging execution components 4 from interfering with each other. The present invention can be widely used, with obvious economic and social effects.

[0060] The preferred embodiments of the present invention are described in detail above in conjunction with 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, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope 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, 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 automatic deployment and retraction device, characterized in that: include: Lower fixing frame; An upper deflection assembly, the upper deflection assembly being arranged at one end of the lower fixing frame; An upper fixed frame, one end of which is transmission-connected to the output end of the upper deflection assembly and is located above the lower fixed frame, and the upper deflection assembly is used to drive the upper fixed frame to rotate in the horizontal direction; The lodging execution assembly is provided with two lodging execution assemblies, and the two lodging execution assemblies are respectively arranged at the other end of the lower fixing frame and the end of the upper fixing frame away from the upper deflection assembly.

2. The dual-antenna automatic deployment and retraction device according to claim 1, characterized in that: The upper yaw assembly comprises: A first box body, wherein the first box body is arranged on the lower fixing frame; a first driving mechanism, wherein the first driving mechanism is disposed in the first housing; a first transmission mechanism, the first transmission mechanism is disposed in the first housing, and the first driving mechanism is transmission-connected to the first transmission mechanism; The first swing arm is arranged on the first box body, one end of which is in transmission connection with the first transmission mechanism, and one end of the first swing arm away from the first transmission mechanism is connected with the upper fixing frame.

3. The dual-antenna automatic deployment and retraction device according to claim 2, characterized in that: The first driving mechanism includes a driving motor and a first planetary reducer arranged 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 upper fixed frame to rotate in the horizontal direction of ±180°.

4. The dual-antenna automatic deployment and retraction device according to claim 2, characterized in that: The first gear transmission mechanism includes a gear box, an intermediate gear arranged in the gear box and meshing with each other, an input gear, and an output gear, wherein the intermediate gear, the input gear, and the output gear mesh with each other, the input gear receives the torque transmitted by the first planetary reducer, and transmits it to the output gear via the intermediate gear, and the output gear transmits the torque to the second planetary reducer.

5. The dual-antenna automatic deployment and retraction device according to claim 4, characterized in that: The first driving 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 through manual input torque of the manual input mechanism, and transmit torque to the second planetary reducer through the output gear.

6. The dual-antenna automatic deployment and retraction device according to claim 4, characterized in that: The hand-cranked input mechanism comprises 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. A lip seal ring is provided at the connection between the hand-cranked lever and the first box body.

7. The dual-antenna automatic deployment and retraction 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 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.

8. The dual-antenna automatic deployment and retraction 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 automatic deployment and retraction 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 automatic deployment and retraction device according to any one of claims 1 to 9, characterized in that: The lodging execution component 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.

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