An antenna cable, a winding device, an antenna device and a lifting method thereof

Abstract

The present invention relates to antenna devices, and particularly to an antenna cable and a winding device, an antenna device and a lifting method thereof that are free of plugging and unplugging and slip rings, which are used to solve the deficiency that the contradiction between the cost and performance of slip rings limits the wide application of anti-interference antenna arrays. The antenna cable and the winding device include a base, a winding assembly, a lifting assembly, a top mounting plate and a cable; the present invention replaces the traditional slip ring with a mechanical structure, reducing the dependence on high-cost components; and the cable path is simple and direct, the transmission of electrical signals is more stable, reducing insertion loss and signal interference that may be generated by components such as cable joints and connectors; in addition, the number of radio frequency cable paths is not limited by the number of slip rings and connectors, improving the scalability of the system.

Description

Technical Field

[0001] The present invention relates to antenna devices, and particularly to an antenna cable and a winding device thereof, an antenna device and a lifting method thereof that are free of plugging and unplugging and slip rings. Background Art

[0002] In modern communication systems, in order to improve the electrical performance of antennas, antenna masts are often used to raise the antennas, thereby reducing the interference of obstacles to signals and improving the signal transmission effect. The main function of the antenna mast is to raise and lower the antenna by winding and unwinding the cable to adapt to different working environments and conditions.

[0003] Traditional cable winding structures usually require large cable reels, which increases the volume of the equipment and makes transportation and installation inconvenient. At the same time, the cable is long, increasing the insertion loss of the cable, especially having a negative impact on the quality of radio frequency signals, particularly for radio frequency cables with strict insertion loss requirements.

[0004] Early antenna mast designs required manual intervention, especially during the disassembly and installation of cable connectors. Whenever the antenna mast needed to be raised, the operator had to manually disassemble all connectors and reinstall them after raising. Frequent manual operations not only prolonged the preparation time, but also accelerated the wear of the connectors, affecting their lifespan, sealing performance, and electrical performance, and reducing the reliability of the system.

[0005] To meet the increasing anti-interference requirements, slip rings are introduced into the cable management system to achieve automated control. Slip rings can achieve continuous cable transmission and avoid manual operations. However, with the increase in the number of antenna arrays and radio frequency channels, slip rings face challenges such as decreased signal isolation and insertion loss. Especially in high-frequency band applications, the cost of slip rings rises sharply. For example, the price of a 7-channel U-band radio frequency joint is close to 70,000 yuan. The contradiction between the cost and performance of slip rings has become increasingly prominent, restricting the widespread application of anti-interference antenna arrays. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiency that the contradiction between the cost and performance of slip rings restricts the widespread application of anti-interference antenna arrays, and to provide an antenna cable and a winding device thereof, an antenna device and a lifting method thereof.

[0007] To solve the above-mentioned deficiencies of the prior art, the present invention provides the following technical solutions:

[0008] An antenna cable and a winding device thereof include a base, a winding assembly, a lifting assembly, a top mounting plate, and a cable;

[0009] What makes it special is that: a fixed connector is provided on the base; the bottom end and the top end of the lifting assembly are respectively connected to the base and the top mounting plate, and are used to adjust the height of the top mounting plate; the top surface of the top mounting plate is used to set the antenna body;

[0010] The cable winding assembly includes a first cable winder provided on the base, a main cable wound around the first cable winder, a second cable winder provided on the top mounting plate, a sub-cable wound around the second cable winder, a pulley frame, and a pulley provided on the pulley frame; the bottom end of the sub-cable is connected to the pulley frame and is used to make the height of the pulley at half of the height of the lifting assembly;

[0011] The top end of the cable is used to connect to the antenna body to realize signal transmission, and is fixed on the top mounting plate, and the bottom end is used to connect to an external device through the fixed connector to realize signal transmission; a connection section is provided in the middle of the cable, and the connection section bypasses the pulley and is connected to the top end of the main cable.

[0012] Further, the main cable is of a flat structure, and a fixed section is provided at the top end, and a groove penetrating in the width direction is provided at the end of the fixed section, and the width of the groove is adapted to the thickness of the connection section;

[0013] The cable includes an upper half of the cable and a lower half of the cable that are both of a flat structure. The top end of the upper half of the cable is used to connect to the antenna body to realize signal transmission, and the top end is fixed on the top mounting plate. The bottom end of the upper half of the cable and the top end of the lower half of the cable are electrically connected, and the outer side surface of the bottom end of the upper half of the cable and the outer side surface of the top end of the lower half of the cable are attached to form the connection section, and the end of the connection section is fixed in the groove; the bottom end of the lower half of the cable is connected to an external device through the fixed connector to realize signal transmission.

[0014] Further, the first cable winder adopts a cable reel, and the cable reel includes a support provided on the base, and a central shaft, a core and a disk surface that are sequentially sleeved from the inside to the outside. Both ends of the central shaft are connected to the support through bearings, and a winding spring is provided between the central shaft and the core. One end of the winding spring is fixed on the core, and the other end is connected to the support through the central shaft;

[0015] The second cable winder adopts a winch.

[0016] Further, the lifting assembly includes a driving unit and a plurality of lifting sleeves that are sequentially sleeved from the inside to the outside. The bottom end of the outermost lifting sleeve is fixed to the base, and the top end of the innermost lifting sleeve is fixed to the top mounting plate; the output end of the driving unit is connected to the innermost lifting sleeve.

[0017] Further, both the main cable and the sub-cable adopt steel cables.

[0018] Meanwhile, the present invention provides an antenna device, which is characterized in that it includes an antenna body, the above-mentioned antenna cable and a wire winding device;

[0019] The antenna body is arranged on the top surface of the top mounting plate and is communicated with the top end of the cable.

[0020] Further, the antenna body is a radio frequency antenna.

[0021] The present invention also provides a lifting method for the above-mentioned antenna device, which is characterized in that it includes the following steps:

[0022] Step 1: Send a lifting instruction, the lifting component rises, so that the top mounting plate rises accordingly, and the antenna body starts to rise; along with the movement of the lifting component, the cable is continuously released through the first wire winder, and the second wire winder synchronously controls the height of the pulley to always be at half of the height of the lifting component;

[0023] When the antenna body reaches the required height, the lifting component stops rising, and the lifting operation is completed;

[0024] During the above process, the cable tension is always controlled by the first wire winder and the second wire winder until step 2 starts to be executed;

[0025] Step 2: Send a lowering instruction, the lifting component descends, so that the top mounting plate descends accordingly, and the antenna body starts to descend; along with the movement of the lifting component, the cable is recovered through the first wire winder, and the second wire winder synchronously controls the height of the pulley to always be at half of the height of the lifting component;

[0026] Meanwhile, the cable tension is controlled by the first wire winder and the second wire winder;

[0027] When the antenna body descends to the lowest height, the lifting component, the first wire winder and the second wire winder stop moving, and the lowering operation is completed.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] (1) An antenna cable and a wire winding device of the present invention include a base, a wire winding component, a lifting component, a top mounting plate and a cable; the present invention replaces the traditional slip ring with a mechanical structure, reduces the dependence on high-cost components; and the cable path is simple and direct, and the transmission of electrical signals is more stable, reducing the insertion loss and signal interference that may be caused by components such as cable joints and connectors; in addition, the number of radio frequency cable paths is not limited by the number of slip rings and connectors, improving the scalability of the system.

[0030] (2) By arranging a connection section between the upper half and the lower half of the cable and fixing it through the groove on the main cable, the present invention makes the upper and lower parts of the cable firmly combined, improving the stability and reliability of signal transmission.

[0031] (3) In the present invention, the first cable winder uses a cable reel, which has a simple structure and is convenient for the winding and unwinding of the cable; the second cable winder adopts a winch structure, which can further enhance the stability and reliability of the cable winding and unwinding.

[0032] (4) An antenna device of the present invention includes an antenna body, the above-mentioned antenna cable and a cable winding device; the present invention adopts a design without plugging and unplugging and without slip rings, which not only reduces manual intervention, reduces the risk of operation errors, but also avoids the wear problem of the slip rings, thereby improving the long-term reliability and stability of the antenna device; in addition, by eliminating the slip rings and plug-and-play connectors, as well as the shorter cables, the complexity and cost of the antenna device are reduced. Description of the Drawings

[0033] Figure 1 Structural schematic diagram of an embodiment of an antenna cable and a cable winding device of the present invention at the lowest height Figure 1 ;

[0034] Figure 2 Structural schematic diagram of an embodiment of the present invention at the lowest height Figure 2 ;

[0035] Figure 3 Structural schematic diagram of the connection section of an embodiment of the present invention at the highest height;

[0036] Figure 4 Front view of the top end of the main cable in an embodiment of the present invention;

[0037] Figure 5 Left view of the top end of the main cable in an embodiment of the present invention.

[0038] Explanation of the reference numerals in the drawings is as follows: 1 - base; 21 - first cable winder; 211 - support; 212 - winding spring; 213 - spool core; 214 - spool surface; 22 - main cable; 221 - groove; 23 - second cable winder; 24 - auxiliary cable; 25 - pulley frame; 26 - pulley; 3 - lifting assembly; 4 - top mounting plate; 51 - upper half of the cable; 52 - lower half of the cable; 53 - connection section; 6 - fixed connector. Detailed Embodiment

[0039] The present invention will be further described below with reference to the drawings and exemplary embodiments.

[0040] Refer to Figures 1 to 5 , an antenna cable and a cable winding device, including a base 1, a cable winding assembly, a lifting assembly 3, a top mounting plate 4 and a cable.

[0041] A fixed connector 6 is provided on the base 1, and the fixed connector 6 is used to connect an external device to achieve signal transmission; the top surface of the top mounting plate 4 is used to set the antenna body.

[0042] The lifting assembly 3 is used to adjust the height of the top mounting plate 4 to achieve the lifting operation of the antenna body; the lifting assembly 3 includes a driving unit and a plurality of lifting sleeves sleeved from the inside to the outside in sequence. The bottom end of the outermost lifting sleeve is fixed to the base 1, and the top end of the innermost lifting sleeve is fixed to the top mounting plate 4. The output end of the driving unit is connected to the bottom end of the innermost lifting sleeve.

[0043] The wire winding assembly includes a first wire winder 21 arranged on the base 1, a main cable 22 wound around the first wire winder 21, a second wire winder 23 arranged on the top mounting plate 4, a secondary cable 24 wound around the second wire winder 23, a pulley frame 25, and a pulley 26 arranged on the pulley frame 25;

[0044] The first wire winder 21 adopts a wire spool. Since the main function of the first wire winder 21 is to wind and unwind the cable to the base 1, its winding and unwinding speed is relatively low and it does not need to bear too much load, but it requires high stability. The design of the wire spool is simple and easy to manufacture, and can meet the above requirements at low cost. The wire spool includes a support 211 arranged on the base 1, and a central shaft, a spool core 213 and a spool surface 214 sleeved from the inside to the outside in sequence. Both ends of the central shaft are connected to the support 211 through bearings; a torsion spring 212 is arranged between the central shaft and the spool core 213. One end of the torsion spring 212 is fixed on the spool core 213, and the other end is connected to the support 211 through the central shaft; when the spool core 213 rotates, the torsion spring 212 provides a reverse torque to help the spool core 213 return to the initial position.

[0045] The second wire winder 23 adopts a winch. The second wire winder 23 uses a servo mechanism to control the winding and unwinding of the secondary cable 24 because the secondary cable 24 requires a higher winding and unwinding speed and a larger load; while the winch can provide stronger power and is suitable for high-load operations, and can ensure the precise winding and unwinding of the secondary cable 24.

[0046] The main cable 22 is of a flat structure to save space, improve the winding and unwinding efficiency and flexibility, and reduce friction loss and unnecessary wear, thereby improving reliability and service life. A fixed section is arranged at the top end of the main cable 22, and a groove 221 penetrating the width direction is arranged at the end of the fixed section. The width of the groove 221 is adapted to the thickness of the connecting section 53, as Figures 4 to 5 shown; the bottom end of the secondary cable 24 is connected to the pulley frame 25; the pulley frame 25 and the pulley 26 are used to help the cable lift smoothly and avoid cable wear or signal interference.

[0047] Both the main cable 22 and the auxiliary cable 24 are made of steel cables to provide the necessary strength, durability, and fatigue resistance, enabling them to withstand the strong tensile forces generated during the cable lifting process, while being wear-resistant and resistant to environmental impacts, and suitable for high-frequency lifting operations. In other embodiments, an aluminum alloy cable, a synthetic fiber cable, a carbon fiber cable, an epoxy resin cable, or a composite material cable (such as a glass fiber-reinforced composite material) can also be used.

[0048] The cable includes a cable upper half 51 and a cable lower half 52 that are both flat structures; the top end of the cable upper half 51 is used to connect to the antenna body to achieve signal transmission, and the top end is fixed on the top mounting plate 4 to ensure that the cable can be firmly fixed during the lifting of the antenna and prevent loosening. The bottom end of the cable upper half 51 and the top end of the cable lower half 52 are electrically connected. The outer side surface (the side away from the cable winding assembly) of the bottom end of the cable upper half 51 and the outer side surface (the side away from the cable winding assembly) of the top end of the cable lower half 52 are attached to form a connection section 53. The connection section 53 bypasses the pulley 26 and is fixed in the groove 221 of the fixed section by an adhesive method to prevent the cable from sliding or falling off during the lifting process and ensure stable signal transmission; the bottom end of the cable lower half 52 is connected to an external device through a fixed connector 6 to achieve signal transmission.

[0049] An antenna device includes an antenna body, the above-mentioned antenna cable, and a cable winding device; the antenna body is arranged on the top surface of the top mounting plate 4 and is in communication with the top end of the cable. The antenna body is a radio frequency antenna, which functions to transmit or receive radio frequency signals and can be used in systems such as wireless communication, navigation, broadcasting, and radar.

[0050] The lifting method of the above-mentioned antenna device includes the following steps:

[0051] Step 1: Issue a lifting command, and the lifting assembly 3 rises, causing the top mounting plate 4 to rise accordingly, and the antenna body starts to rise;

[0052] With the movement of the lifting sleeve, the cable upper half 51 and the cable lower half 52 are continuously released by the first cable winder 21, and the second cable winder 23 synchronously controls the height of the pulley 26 to always be at half of the height of the lifting assembly 3 to ensure that the connection between the cable and the antenna body remains stable throughout the lifting process;

[0053] As the cable in the first cable winder 21 is continuously released, the cable tension is controlled by the first cable winder 21 and the second cable winder 23 to ensure that the connection between the cable upper half 51 and the antenna body is not stretched or loosened;

[0054] When the antenna body reaches the required height, the lifting assembly 3 stops moving, and the first cable winder 21 and the second cable winder 23 need to maintain the cable tension to ensure the stable position of the antenna body and prevent it from changing due to external forces (such as wind), thus completing the lifting operation;

[0055] Step 2: Send a lowering instruction, and the lifting and lowering assembly 3 lowers, causing the top mounting plate 4 to lower accordingly, and the antenna body starts to lower;

[0056] With the movement of the lifting sleeve, the upper half 51 and the lower half 52 of the cable are retrieved through the first cable winder 21, and the second cable winder 23 synchronously controls the height of the pulley 26 to always be at half of the height of the lifting and lowering assembly 3, ensuring that the connection between the cable and the antenna body remains stable throughout the lifting and lowering process;

[0057] As the cable in the first cable winder 21 is continuously retrieved, the cable tension is controlled through the first cable winder 21 and the second cable winder 23 to ensure that the connection between the upper half 51 of the cable and the antenna body is not stretched or loosened;

[0058] When the antenna body descends to the lowest height, the lifting and lowering assembly 3, the first cable winder 21, and the second cable winder 23 stop moving, completing the lowering operation.

Claims

1. An antenna cable and a wire winding device, comprising a base (1), a wire winding assembly, a lifting assembly (3), a top mounting plate (4) and a cable; It is characterized in that: A fixed connector (6) is provided on the base (1); the bottom end and the top end of the lifting assembly (3) are respectively connected to the base (1) and the top mounting plate (4) for adjusting the height of the top mounting plate (4); the top surface of the top mounting plate (4) is used for arranging an antenna body; The wire winding assembly includes a first wire winder (21) arranged on the base (1), a main cable (22) wound around the first wire winder (21), a second wire winder (23) arranged on the top mounting plate (4), a sub-cable (24) wound around the second wire winder (23), as well as a pulley bracket (25) and a pulley (26) arranged on the pulley bracket (25); the bottom end of the sub-cable (24) is connected to the pulley bracket (25) for making the height of the pulley (26) be at half of the height of the lifting assembly (3); The top end of the cable is used for connecting to the antenna body to realize signal transmission and is fixed on the top mounting plate (4), and the bottom end is used for connecting to an external device through the fixed connector (6) to realize signal transmission; a connection section (53) is arranged in the middle of the cable, and the connection section (53) bypasses the pulley (26) and is connected to the top end of the main cable (22).

2. The antenna cable and the wire winding device according to claim 1, wherein: The main cable (22) is of a flat structure, and a fixed section is arranged at the top end, and a groove (221) penetrating in the width direction is arranged at the end of the fixed section, and the width of the groove (221) is adapted to the thickness of the connection section (53); The cable includes a cable upper half (51) and a cable lower half (52) both of which are of flat structures. The top end of the cable upper half (51) is used for connecting to the antenna body to realize signal transmission and is fixed on the top mounting plate (4). The bottom end of the cable upper half (51) and the top end of the cable lower half (52) are electrically connected, and the outer side surface of the bottom end of the cable upper half (51) and the outer side surface of the top end of the cable lower half (52) are attached to form the connection section (53), and the end of the connection section (53) is fixed in the groove (221); the bottom end of the cable lower half (52) is connected to an external device through the fixed connector (6) to realize signal transmission.

3. The antenna cable and the wire winding device according to claim 1 or 2, wherein: The first wire winder (21) adopts a wire spool, and the wire spool includes a support (211) arranged on the base (1), and a central shaft, a spool core (213) and a spool surface (214) sleeved in sequence from inside to outside. Both ends of the central shaft are connected to the support (211) through bearings, and a winding spring (212) is arranged between the central shaft and the spool core (213). One end of the winding spring (212) is fixed on the spool core (213), and the other end is connected to the support (211) through the central shaft; The second wire winder (23) adopts a winch.

4. The antenna cable and the wire winding device according to claim 3, wherein: The lifting assembly (3) includes a driving unit and a plurality of lifting sleeves sleeved from inside to outside in sequence. The bottom end of the outermost lifting sleeve is fixed to the base (1), and the top end of the innermost lifting sleeve is fixed to the top mounting plate (4); the output end of the driving unit is connected to the innermost lifting sleeve.

5. The antenna cable and winding device according to claim 3, wherein: Both the main cable (22) and the auxiliary cable (24) are made of steel cables.

6. An antenna device, characterized in that: It includes an antenna body and the antenna cable and winding device according to claim 1; The antenna body is arranged on the top surface of the top mounting plate (4) and is communicated with the top end of the cable.

7. The antenna device according to claim 6, wherein: The antenna body is a radio frequency antenna.

8. A lifting method for the antenna device according to claim 6, characterized in that, It includes the following steps: Step 1: Send a lifting instruction, the lifting assembly (3) rises, so that the top mounting plate (4) rises accordingly, and the antenna body starts to rise; with the movement of the lifting assembly (3), the cable is continuously released through the first winder (21), and the second winder (23) synchronously controls the height of the pulley (26) to always be at half of the height of the lifting assembly (3); When the antenna body reaches the required height, the lifting assembly (3) stops rising, and the lifting operation is completed; During the above process, the cable tension is always controlled by the first winder (21) and the second winder (23) until step 2 starts to be executed; Step 2: Send a lowering instruction, the lifting assembly (3) descends, so that the top mounting plate (4) descends accordingly, and the antenna body starts to descend; with the movement of the lifting assembly (3), the cable is recovered through the first winder (21), and the second winder (23) synchronously controls the height of the pulley (26) to always be at half of the height of the lifting assembly (3); At the same time, the cable tension is controlled by the first winder (21) and the second winder (23); When the antenna body descends to the lowest height, the lifting assembly (3), the first winder (21), and the second winder (23) stop moving, and the lowering operation is completed.

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