Base station antenna

Abstract

The invention relates to the field of communication equipment, in particular to a base station antenna which comprises a storage bin, a lead screw is rotationally connected into the storage bin, a lifting seat is in threaded connection with the lead screw, a limiting structure is arranged between the lifting seat and the storage bin, a plurality of supports are fixedly connected to the lifting seat, and each support is rotationally connected with a plate-shaped antenna. A torsional spring is installed at the rotating connection position of the plate-shaped antenna and the support, a fixing plate is rotationally connected to the upper end of the lead screw, the fixing plate is fixedly connected into the storage bin through an L-shaped plate, a plurality of pull ropes are fixedly connected to the fixing plate, and the other ends of the pull ropes are fixedly connected to the upper end of the plate-shaped antenna; the lifting seat is fixedly connected with a limiting block, the limiting block is slidably connected into the dovetail groove, the base station antenna has a storage function, and the portability is improved.

Description

Technical Field

[0001] This invention relates to the field of communication equipment, and more particularly to a base station antenna. Background Technology

[0002] When large-scale events are held in remote areas, the number of visitors increases dramatically in a short period of time, and the use of mobile devices surges simultaneously, placing higher temporary demands on the network communication signal coverage and transmission capacity at the event site. To ensure smooth network signal coverage, mobile base station antennas need to be transported to the event site using mobile vehicles for temporary signal coverage and enhancement to meet the on-site communication needs.

[0003] Currently, existing mobile base station antennas mainly consist of a base station body and multiple panel antennas. As the core component for signal transmission and reception, the installation angle of the panel antenna directly determines the signal coverage and transmission quality. However, these traditional mobile base station antennas have many technical drawbacks in actual use and transportation: First, the angle adjustment of the panel antennas requires manual operation by staff one by one, which is cumbersome and time-consuming. In temporary event sites with limited personnel, it is difficult to quickly complete antenna deployment, affecting the timeliness of signal support. Second, after adjustment, the multiple panel antennas are in an unfolded state, occupying a large space. This not only increases the space cost during transportation but also makes them susceptible to bumps and scratches during transport and installation, leading to damage to antenna components and reducing the equipment's lifespan. Third, storage also requires staff to manually reset and fold each panel antenna, resulting in low operational efficiency. Furthermore, manual operation poses safety risks to the equipment and personnel, and the equipment's portability and ease of operation are poor. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a base station antenna, which has a storage function and improves portability.

[0005] A base station antenna includes a storage compartment, a lead screw rotatably connected inside the storage compartment, a lifting seat threaded onto the lead screw, a limit structure between the lifting seat and the storage compartment, multiple brackets fixedly connected to the lifting seat, a plate antenna rotatably connected to each bracket, a torsion spring installed at the rotatable connection between the plate antenna and the bracket, a fixed plate rotatably connected to the upper end of the lead screw, the fixed plate being fixedly connected to the storage compartment via an L-shaped plate, multiple pull ropes fixedly connected to the fixed plate, the other ends of the multiple pull ropes being fixedly connected to the upper end of the plate antenna respectively.

[0006] The limiting structure includes a dovetail groove on the inner wall of the storage compartment, a limiting block fixedly connected to the lifting seat, and the limiting block slidably connected in the dovetail groove.

[0007] A rotating shaft is fixedly connected to the inner wall of the bracket. The plate antenna is rotatably connected to the rotating shaft. A torsion spring is sleeved on the rotating shaft. One end of the torsion spring is fixedly connected to the plate antenna, and the other end is fixedly connected to the inner wall of the bracket.

[0008] Each bracket is fixedly connected to an extension frame at its upper end. A limit wheel is rotatably connected in the middle of the extension frame, and the pull rope is attached to the limit wheel.

[0009] Multiple extension frames are fixedly connected to the top of a top cover, and multiple cover plates are rotatably connected to the top cover.

[0010] Multiple cover plates are rotatably connected to the top cover via damping shafts.

[0011] Multiple cover plates are arranged in a circular array on the top cover.

[0012] Multiple covers are located above multiple plate-shaped antennas.

[0013] The limiting wheel is a combination of two cones that gradually widen from the middle to both ends.

[0014] The lower end of the storage compartment is fixedly connected to multiple supports, each of which has mounting holes. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a top view of a base station antenna;

[0017] Figure 2 and Figure 3 This is a schematic diagram of the overall structure of a base station antenna;

[0018] Figure 4 This is a schematic diagram of the top cover structure;

[0019] Figure 5 This is a schematic diagram of the lead screw structure;

[0020] Figure 6 This is a structural diagram of the storage compartment;

[0021] Figure 7 This is a schematic diagram of the support structure;

[0022] Figure 8 This is a structural diagram of the fixed plate. Detailed Implementation

[0023] The present invention will be described in detail with reference to the accompanying drawings in the embodiments of the present invention.

[0024] A base station antenna includes a storage compartment 101. A lead screw 201 is rotatably connected inside the storage compartment 101. A lifting seat 202 is threaded onto the lead screw 201. A limit structure is provided between the lifting seat 202 and the storage compartment 101. Multiple brackets 203 are fixedly connected to the lifting seat 202. A plate antenna 204 is rotatably connected to each bracket 203. A torsion spring 205 is installed at the rotatable connection between the plate antenna 204 and the bracket 203. A fixing plate 303 is rotatably connected to the upper end of the lead screw 201. The fixing plate 303 is fixedly connected to the storage compartment 101 by an L-shaped plate. Multiple pull ropes 302 are fixedly connected to the fixing plate 303. The other ends of the multiple pull ropes 302 are respectively fixedly connected to the upper end of the plate antenna 204.

[0025] See Figure 5-8 ,

[0026] When holding events in remote areas, the increased number of attendees and mobile device users leads to a greater demand for network signal. In such cases, officials need to transport the mobile base station antenna to the site using mobile vehicles to ensure sufficient network signal. However, conventional mobile base station antennas consist of a base station and multiple panel antennas. Staff must manually adjust the angles of each panel antenna individually. Furthermore, the adjusted panel antennas occupy a large amount of space, and installation and storage are time-consuming. Panel antennas are also easily damaged by bumps and knocks, making the overall system less portable and causing significant inconvenience during transportation.

[0027] In actual use, the base station antenna of this application first has its lower end of the storage compartment 101 fixedly installed at a designated position on a mobile vehicle. The mobile vehicle then transports the storage compartment 101 to the event site. A drive motor is fixedly connected to the lower outer wall of the storage compartment 101. The lower end of the lead screw 201 passes through the lower wall of the storage compartment 101 and is coaxially fixedly connected to the output shaft of the drive motor via a coupling. The drive motor provides power for the rotation of the lead screw 201. By controlling the drive motor to rotate forward, the drive motor drives the lead screw 201 to rotate synchronously. Since the lifting seat 202 has a nut that mates with the lead screw 201, the nut engages with the threaded lead screw 201. Under the limiting action of the limiting structure, the lifting seat 202 can only move upward along the axial direction of the lead screw 201, thereby driving multiple supports 203 on the lifting seat 202 to move upward synchronously. The multiple supports 203 respectively drive multiple plate antennas 204 inside them to gradually extend from the upper opening of the storage compartment 101.

[0028] When the lifting seat 202 is at the lowest end of the lead screw 201, the installation height of the fixing plate 303 is higher than the upper surface of the plate antenna 204. At this time, the multiple pull ropes 302 are all in a fully taut state. The fixing plate 303 uses the tension of the multiple pull ropes 302 to pull the corresponding multiple plate antennas 204 respectively, so that the multiple plate antennas 204 are kept in a vertically retracted state. The multiple plate antennas 204 are respectively attached to the inside of the multiple brackets 203, realizing the initial retraction of the plate antennas 204. When the lifting seat 202 starts to move upward under the drive of the lead screw 201, the bracket 203 rises synchronously with the lifting seat 202. The vertical distance between the plate antenna 204 and the fixing plate 303 begins to gradually decrease. The tension of the pull ropes 302 gradually decreases and gradually becomes loose. At this time, under the elastic driving force of the torsion spring 205, the plate antenna 204 automatically flips and opens around the rotational connection with the bracket 203, and the tilt angle of the plate antenna 204 gradually increases.

[0029] When the bracket 203 rises with the lifting seat 202 to a height exceeding the upper end of the fixed plate 303, the upper end of the bracket 203 pushes the corresponding pull rope 302 upward. At this time, the bracket 203 has driven the plate antenna 204 to fully extend from the storage compartment 101, completing the initial deployment of multiple plate antennas 204. After the bracket 203 pushes up the pull rope 302, the pull rope 302 is restretched and is in a taut state. After the plate antenna 204 is subjected to the reverse tension of the pull rope 302, it performs a reverse flipping motion around the rotational connection with the bracket 203. As the rotation angle between the plate antenna 204 and the bracket 203 gradually decreases, the operator can control the number of rotations of the drive motor and adjust the rotation stroke of the lead screw 201, thereby controlling the rising height of the lifting seat 202. This allows for precise fine-tuning of the tilt angle of the plate antenna 204, facilitating the adjustment of the tilt angle of the plate antenna 204 to the optimal signal coverage range. Furthermore, the entire adjustment process does not require the operator to manually adjust each plate antenna 204 individually; it can be completed simply by adjusting the rotation of the lead screw 201 through the drive motor, making the operation convenient.

[0030] After the base station antenna is used, the staff controls the drive motor to reverse, which drives the lead screw 201 to rotate in the opposite direction. Under the action of the limiting structure, the lifting seat 202 moves downward along the axis of the lead screw 201. At the same time, the lifting seat 202 drives multiple brackets 203 to move downward synchronously. The multiple brackets 203 and the multiple plate antennas 204 inside them move into the storage compartment 101 synchronously with the lifting seat 202 and finally enter the storage compartment 101. During the downward movement of the plate antennas 204, the height of the fixing plate 303 is higher than that of the plate antennas 204. Therefore, the fixing plate 303 will pull multiple pull ropes 302 at the same time. The tension of the pull ropes 302 causes the plate antennas 204 to rotate around the rotating connection, so that the multiple plate antennas 204 return to the vertically folded state, which makes it easier for the plate antennas 204 to be stored in the storage compartment 101, greatly reducing the overall space occupied. This application can simultaneously realize the functions of unfolding, tilting angle adjustment and storage of multiple plate antennas 204 by simply adjusting the rotation direction and rotation stroke of the lead screw 201. It eliminates the need for staff to manually adjust each plate antenna 204, which not only saves time and effort, but also avoids the risk of bumps and knocks during manual operation, thus improving the safety of base station antenna use and storage.

[0031] The limiting structure includes a dovetail groove 401 on the inner wall of the storage compartment 101, and a limiting block 402 fixedly connected to the lifting seat 202. The limiting block 402 is slidably connected in the dovetail groove 401.

[0032] See Figure 1 ,

[0033] By sliding the dovetail groove 401 and the limiting block 402, the groove wall of the dovetail groove 401 provides circumferential limiting to the limiting block 402, thereby achieving longitudinal circumferential limiting of the lifting seat 202. This restricts the synchronous rotation of the lifting seat 202 with the lead screw 201, ensuring that the lifting seat 202 can move vertically and smoothly up and down along the extension direction of the dovetail groove 401 under the drive of the lead screw 201.

[0034] A rotating shaft 206 is fixedly connected to the inner wall of the bracket 203. The plate antenna 204 is rotatably connected to the rotating shaft 206. A torsion spring 205 is sleeved on the rotating shaft 206. One end of the torsion spring 205 is fixedly connected to the plate antenna 204, and the other end is fixedly connected to the inner wall of the bracket 203.

[0035] See Figure 7 ,

[0036] When the pull rope 302 is taut, the tension of the pull rope 302 overcomes the elastic force of the torsion spring 205, keeping the plate antenna 204 in a vertical and retracted state. At this time, the torsion spring 205 is in a compressed and stored state. When the pull rope 302 gradually relaxes and the tension disappears or decreases, the elastic force of the torsion spring 205 is released, causing the plate antenna 204 to automatically rotate around the pivot 206, realizing the rapid deployment of the plate antenna 204 and providing a stable power source for the deployment of the plate antenna 204. At the same time, the pivot 206 provides stable rotational support for the rotation of the plate antenna 204, ensuring the smoothness of the rotation process of the plate antenna 204.

[0037] Each bracket 203 is fixedly connected to an extension frame 304 at its upper end. A limit wheel 301 is rotatably connected in the middle of the extension frame 304, and a pull rope 302 is attached to the limit wheel 301.

[0038] See Figure 7 ,

[0039] The limit wheel 301 supports and guides the pull rope 302, preventing the pull rope 302 from directly contacting the end of the extension frame 304 and generating hard friction, reducing wear on the pull rope 302 during the stretching and slack-down process, and extending the service life of the pull rope 302.

[0040] Multiple extension frames 304 are fixedly connected to a top cover 102 at their upper ends, and multiple cover plates 103 are rotatably connected to the top cover 102.

[0041] See Figure 4 ,

[0042] The top cover 102 connects the ends of multiple extension racks 304 into a whole, enhancing the structural stability of multiple supports 203 and extension racks 304. When multiple supports 203 move downwards and are in the storage state, the shape of the top cover 102 matches the storage compartment 101, thereby covering the upper part of the storage compartment 101. By rotating multiple cover plates 103 to make them vertical, the storage compartment 101 can be fully covered, realizing storage and protection functions.

[0043] When multiple supports 203 are raised simultaneously, the top cover 102 is raised accordingly. At this time, the staff will rotate multiple covers 103 to a horizontal position, so that the covers 103 can shield and protect the plate antenna 204 below, preventing hail or other foreign objects from damaging the plate antenna 204.

[0044] The top cover 102 and multiple covers 103 are all made of polytetrafluoroethylene, with a uniform thickness of 4mm; the distance between the inner sidewall of the top cover 102 and each cover 103 and the uppermost part of the plate antenna 204 is 10cm.

[0045] Polytetrafluoroethylene (PTFE) has excellent wave transmission characteristics with low dielectric constant and low dielectric loss. The 4mm thickness can significantly reduce signal attenuation while ensuring structural strength. The 10cm installation distance can avoid near-field coupling and standing wave distortion of the antenna, and has little impact on the signal transmission and radiation performance of the plate antenna 204.

[0046] Multiple cover plates 103 are rotatably connected to the top cover 102 via damping shafts.

[0047] See Figure 2-4 ,

[0048] The damping shaft provides a certain damping force for the flipping of the cover plate 103, so that the cover plate 103 can remain fixed at any flipping angle and will not rotate arbitrarily due to external wind force, equipment shaking or other factors. When the plate antenna 204 adjusts its tilt angle under the action of the torsion spring 205 and the pull rope 302, the upper end of the plate antenna 204 will push the cover plate 103 to flip synchronously around the damping shaft. The cover plate 103 can always be attached to the upper surface of the plate antenna 204 for protection, and no additional fixing is required after flipping, ensuring the effectiveness and convenience of protection.

[0049] Multiple cover plates 103 are arranged in a circumferential array on the top cover 102.

[0050] See Figure 2-4 ,

[0051] The circular array of multiple cover plates 103 corresponds one-to-one with the distribution positions of multiple plate antennas 204, ensuring that the upper end of each plate antenna 204 is protected by the corresponding cover plate 103 without any blind spots.

[0052] Multiple covers 103 are located above multiple plate antennas 204.

[0053] See Figure 2-3 ,

[0054] The cover plate 103 is located directly above the plate antenna 204. When the plate antenna 204 is deployed, it can maximize the protection of the upper part of the plate antenna 204, effectively preventing debris from falling from above onto the signal receiving surface of the plate antenna 204 and avoiding affecting the signal transmission effect of the plate antenna 204. At the same time, the position of the cover plate 103 does not obstruct the signal transmission and reception direction of the plate antenna 204, and will not affect the signal coverage range of the plate antenna 204, thus achieving a balance between protection and use. When the plate antenna 204 is retracted to a vertical position, the cover plate 103 can also be retracted to a vertical position and fit against the outside of the plate antenna 204, further reducing the overall space occupied and facilitating storage.

[0055] The limit wheel 301 is a combination of two cones that gradually widen from the middle to both ends.

[0056] See Figure 7 ,

[0057] The pull rope 302 rests in the arc-shaped limiting groove in the middle of the limiting wheel 301. The structure of the protrusions at both ends of the limiting wheel 301 can axially limit the pull rope 302, preventing the pull rope 302 from slipping off the wheel surface of the limiting wheel 301 to both ends during the stretching and slack-off process, and ensuring that the pull rope 302 is always in close contact with the limiting wheel 301.

[0058] The lower end of the storage compartment 101 is fixedly connected to multiple supports, each of which has an installation hole.

[0059] See Figure 2-3 ,

[0060] After the staff passes the bolt through the mounting hole, it is threaded into the threaded hole on the mobile carrier to achieve a detachable and fixed connection between the storage compartment 101 and the mobile carrier. The installation and disassembly operations are convenient, which facilitates the transfer and replacement of the base station antenna installation position.

Claims

1. A base station antenna, characterized in that: It includes a storage compartment, inside which a lead screw is rotatably connected. A lifting seat is threaded onto the lead screw. A limit structure is set between the lifting seat and the storage compartment. Multiple brackets are fixedly connected to the lifting seat. A plate-shaped antenna is rotatably connected to each bracket. A torsion spring is installed at the rotatable connection between the plate-shaped antenna and the bracket. A fixing plate is rotatably connected to the upper end of the lead screw. The fixing plate is fixedly connected to the storage compartment through an L-shaped plate. Multiple pull ropes are fixedly connected to the fixing plate. The other ends of the multiple pull ropes are respectively fixedly connected to the upper end of the plate-shaped antenna.

2. A base station antenna according to claim 1, characterized in that: The limiting structure includes a dovetail groove on the inner wall of the storage compartment, a limiting block fixedly connected to the lifting seat, and the limiting block slidably connected in the dovetail groove.

3. A base station antenna according to claim 2, characterized in that: A rotating shaft is fixedly connected to the inner wall of the bracket. The plate antenna is rotatably connected to the rotating shaft. A torsion spring is sleeved on the rotating shaft. One end of the torsion spring is fixedly connected to the plate antenna, and the other end is fixedly connected to the inner wall of the bracket.

4. A base station antenna according to claim 3, characterized in that: Each bracket is fixedly connected to an extension frame at its upper end. A limit wheel is rotatably connected in the middle of the extension frame, and the pull rope is attached to the limit wheel.

5. A base station antenna according to claim 4, characterized in that: Multiple extension frames are fixedly connected to the top of a top cover, and multiple cover plates are rotatably connected to the top cover.

6. A base station antenna according to claim 5, characterized in that: Multiple cover plates are rotatably connected to the top cover via damping shafts.

7. A base station antenna according to claim 6, characterized in that: Multiple cover plates are arranged in a circular array on the top cover.

8. A base station antenna according to claim 7, characterized in that: Multiple covers are located above multiple plate-shaped antennas.

9. A base station antenna according to claim 4, characterized in that: The limiting wheel is a combination of two cones that gradually widen from the middle to both ends.

10. A base station antenna according to claim 1, characterized in that: The lower end of the storage compartment is fixedly connected to multiple supports, each of which has mounting holes.

Images