Antenna cable, coiling device, antenna equipment and lifting method of antenna equipment

Abstract

The invention relates to antenna equipment, in particular to a plugging-free and slip-ring-free antenna cable, a coiling device, antenna equipment and a lifting method thereof, and aims to overcome the defect that the wide application of an anti-interference antenna array is limited by the contradiction between the cost and the performance of a slip ring. The antenna cable and winding device comprises a base, a winding assembly, a lifting assembly, a top mounting plate and a cable, according to the invention, a traditional slip ring is replaced by a mechanical structure, so that the dependence on high-cost components is reduced; the cable path is simple and direct, the transmission of electric signals is more stable, and insertion loss and signal interference possibly generated by components such as cable joints and connectors are reduced; in addition, the number of the radio frequency cables is not limited by the number of the slip rings and the number of the connectors, and the expansibility of the system is improved.

Description

Technical Field

[0001] The invention relates to antenna equipment, and in particular to a plug-free and slip-ring-free antenna cable and a winding device, antenna equipment and a lifting method thereof. Background Art

[0002] In modern communication systems, in order to improve the electrical performance of the antenna, the antenna is often raised by a lifting rod, thereby reducing the interference of obstacles on the signal and improving the signal transmission effect. The main function of the lifting rod is to achieve the raising and lowering of the antenna by retracting and releasing the cable to adapt to different working environments and conditions.

[0003] Traditional cable winding structures usually require larger reels, which increases the size of the equipment and makes transportation and installation inconvenient. At the same time, the cable is longer, which increases the insertion loss of the cable, especially having a negative impact on the quality of the RF signal, especially for RF cables with strict insertion loss requirements.

[0004] Early lift rod designs required manual intervention, especially during the removal and installation of cable connectors. Whenever the lift rod needed to be raised, the operator had to manually remove all connectors, raise them, and then reinstall them. Frequent manual operations not only prolonged the preparation time, but also accelerated the wear of the connectors, affecting their life, sealing and electrical performance, and reducing the reliability of the system.

[0005] In order to meet the increasing anti-interference requirements, slip rings are introduced into cable management systems to achieve automated control. Slip rings enable continuous transmission of cables and avoid manual operation. However, with the increase in the number of antenna arrays and RF channels, slip rings face the challenge of performance degradation such as signal isolation and insertion loss. Especially in high-frequency band applications, the cost of slip rings has risen sharply. For example, the price of a 7-way U-band RF joint is close to 70,000 yuan. The contradiction between the cost and performance of slip rings has become increasingly prominent, limiting the widespread application of anti-interference antenna arrays. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the contradiction between the cost and performance of the slip ring limits the wide application of the anti-interference antenna array, and to provide an antenna cable and winding device, antenna equipment and a lifting method thereof.

[0007] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides the following technical solutions: An antenna cable and winding device, comprising a base, a winding assembly, a lifting assembly, a top mounting plate and a cable; The special features thereof are: a fixed connector is arranged on the base; the bottom and top ends of the lifting assembly are respectively connected to the base and the top mounting plate for adjusting the height of the top mounting plate; the top surface of the top mounting plate is used for setting the antenna body; The cable reel assembly comprises a first cable reel arranged on the base, a main cable wound on the first cable reel, a second cable reel arranged on the top mounting plate, a secondary cable wound on the second cable reel, a pulley frame, and a pulley arranged on the pulley frame; the bottom end of the secondary cable is connected to the pulley frame, so that the pulley height is at half the height of the lifting assembly; The top end of the cable is used to connect to the antenna body to achieve signal transmission and is fixed on the top mounting plate, and the bottom end is used to connect to an external device through a fixed connector to achieve signal transmission; a connecting section is provided in the middle of the cable, and the connecting section bypasses the pulley to connect to the top end of the main cable.

[0008] Furthermore, the main cable is a flat structure, and a fixing section is provided at the top, and a groove running through the width direction of the fixing section is provided at the end of the fixing section, and the width of the groove is adapted to the thickness of the connecting section; The cable includes an upper cable half and a lower cable half, both of which are flat structures. The top of the upper cable half is used to connect to the antenna body to realize signal transmission, and the top is fixed on the top mounting plate. The bottom end of the upper cable half is electrically connected to the top of the lower cable half, and the outer side surface of the bottom end of the upper cable half is fitted with the outer side surface of the top end of the lower cable half to form the connecting section, and the end of the connecting section is fixed in the groove; the bottom end of the lower cable half is connected to an external device through a fixed connector to realize signal transmission.

[0009] Furthermore, the first wire reel adopts a wire reel, which includes a support arranged on a base, and a central axis, a reel core and a reel surface which are sequentially sleeved from the inside to the outside, wherein both ends of the central axis are connected to the support through bearings, and a coil spring is arranged between the central axis and the reel core, wherein one end of the coil spring is fixed to the reel core, and the other end is connected to the support through the central axis; The second reel is a winch.

[0010] Furthermore, the lifting assembly includes a driving unit and a plurality of lifting sleeves sequentially mounted 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.

[0011] Furthermore, the main cable and the auxiliary cable are both made of steel cables.

[0012] Meanwhile, the present invention provides an antenna device, which is special in that it comprises an antenna body and the above antenna cable and winding device; The antenna body is arranged on the top surface of the top mounting plate and is communicated with the top end of the cable.

[0013] Furthermore, the antenna body is a radio frequency antenna.

[0014] The present invention also provides a method for lifting the above antenna device, which is special in that it includes the following steps: Step 1: Issue a lifting command, the lifting assembly rises, causing the top mounting plate to rise, and the antenna body to begin to rise; as the lifting assembly moves, the cable is continuously released through the first reel, and the second reel synchronously controls the pulley height to always be at half the height of the lifting assembly; When the antenna body reaches the required height, the lifting assembly stops rising, completing the lifting operation; In the above process, the cable tension is always controlled by the first reel and the second reel until step 2 is started; Step 2: Issue a descending command, the lifting assembly is lowered, so that the top mounting plate is lowered, and the antenna body begins to descend; as the lifting assembly moves, the cable is recovered by the first reel, and the second reel synchronously controls the pulley height to always be at half the height of the lifting assembly; At the same time, the cable tension is controlled by the first reel and the second reel; When the antenna body is lowered to the lowest height, the lifting assembly, the first wire reel and the second wire reel stop moving, and the lowering operation is completed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides an antenna cable and a winding device, comprising 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, thereby reducing the reliance on high-cost components. The cable path is simple and direct, the transmission of electrical signals is more stable, and the insertion loss and signal interference that may be caused by components such as cable joints and connectors are reduced. In addition, the number of RF cable paths is not limited by the number of slip rings and connectors, thereby improving the scalability of the system.

[0016] (2) The present invention provides a connecting section between the upper half of the cable and the lower half of the cable and fixes the connecting section through a groove on the main cable, so that the upper and lower parts of the cable are firmly combined, thereby improving the stability and reliability of signal transmission.

[0017] (3) The first cable reel of the present invention uses a cable reel, which has a simple structure and is convenient for cable reeling and unreeling; the second cable reel adopts a winch structure, which can further enhance the stability and reliability of cable reeling and unreeling.

[0018] (4) The present invention provides an antenna device, comprising an antenna body and the above-mentioned antenna cable and winding device. The present invention adopts a plug-in-free and slip-ring-free design, which not only reduces manual intervention and reduces the risk of operating errors, but also avoids the wear problem of slip rings, thereby improving the long-term reliability and stability of the antenna device. In addition, by eliminating slip rings and plug-in connectors, as well as shorter cables, the complexity and cost of the antenna device are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of an antenna cable and winding device embodiment of the present invention at the lowest height is shown in FIG. Figure 1 ; Figure 2 The structure of the embodiment of the present invention at the lowest height is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the connection section of an embodiment of the present invention at the highest height; Figure 4 This is a front view of the top end of the main cable in an embodiment of the present invention; Figure 5 It is a left view of the top end of the main cable in an embodiment of the present invention.

[0020] The reference numerals are as follows: 1-base; 21-first reel; 211-support; 212-winding spring; 213-disk core; 214-disk surface; 22-main cable; 221-groove; 23-second reel; 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-connecting section; 6-fixed connector. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and exemplary embodiments.

[0022] Reference Figures 1 to 5 , an antenna cable and a winding device, including a base 1, a winding assembly, a lifting assembly 3, a top mounting plate 4 and a cable.

[0023] The base 1 is provided with a fixed connector 6, which is used to connect to an external device to achieve signal transmission; the top surface of the top mounting plate 4 is used to set the antenna body.

[0024] The lifting assembly 3 is used to adjust the height of the top mounting plate 4 to realize the lifting operation of the antenna body; the lifting assembly 3 includes a driving unit and a plurality of lifting sleeves which are sequentially arranged from the inside to the outside, the bottom end of the outermost lifting sleeve is fixed to the base 1, the top end of the innermost lifting sleeve is fixed to the top mounting plate 4, and the output end of the driving unit is connected to the bottom end of the innermost lifting sleeve.

[0025] The cable reel assembly includes a first cable reel 21 disposed on the base 1, a main cable 22 wound on the first cable reel 21, a second cable reel 23 disposed on the top mounting plate 4, a secondary cable 24 wound on the second cable reel 23, a pulley frame 25, and a pulley 26 disposed on the pulley frame 25; The first cable reel 21 adopts a cable reel. Since the main function of the first cable reel 21 is to reel the cable to the base 1, its reeling speed is low and does not need to bear excessive load, but requires high stability. The cable reel is simple in design and easy to manufacture, and can achieve the above requirements at a low cost. The cable reel includes a support 211 set on the base 1, and a central axis, a disk core 213 and a disk surface 214 sequentially sleeved from the inside to the outside. The two ends of the central axis are connected to the support 211 through bearings; a coil spring 212 is arranged between the central axis and the disk core 213, one end of the coil spring 212 is fixed on the disk core 213, and the other end is connected to the support 211 through the central axis; when the disk core 213 rotates, the coil spring 212 provides a reverse torque to help the disk core 213 return to its initial position.

[0026] The second reel 23 adopts a winch, and the second reel 23 adopts a servo mechanism to control the retraction and release of the auxiliary cable 24, because the auxiliary cable 24 requires a higher retraction and release speed and a larger load; the winch can provide stronger power and is suitable for high-load operation, and can ensure the accurate retraction and release of the auxiliary cable 24.

[0027] The main cable 22 is a flat structure to save space, improve the efficiency and flexibility of retracting and releasing, and reduce friction loss and unnecessary wear, thereby improving reliability and service life. The top of the main cable 22 is provided with a fixed section, and the end of the fixed section is provided with a groove 221 that runs through the width direction of the fixed section. The width of the groove 221 is adapted to the thickness of the connecting section 53. Figures 4 and 5 As shown; the bottom end of the auxiliary cable 24 is connected to the pulley frame 25; the pulley frame 25 and the pulley 26 are used to help the cable rise and fall smoothly to avoid cable wear or signal interference.

[0028] The main cable 22 and the auxiliary cable 24 are both made of steel cables to provide the necessary strength, durability and fatigue resistance, so that they can withstand the strong pulling force generated during the cable lifting process, and are also wear-resistant and environmentally resistant, and are suitable for high-frequency lifting operations. In other embodiments, one of aluminum alloy cables, synthetic fiber cables, carbon fiber cables, epoxy resin cables, and composite cables (such as glass fiber reinforced composite materials) can also be used.

[0029] The cable includes an upper cable part 51 and a lower cable part 52, both of which are flat structures; the top of the upper cable part 51 is used to connect to the antenna body to realize signal transmission, and the top is fixed on the top mounting plate 4 to ensure that the cable can be firmly fixed when the antenna is raised or lowered and to avoid loosening, the bottom end of the upper cable part 51 and the top end of the lower cable part 52 are electrically connected, the outer side surface of the bottom end of the upper cable part 51 (the side away from the winding assembly) and the outer side surface of the top end of the lower cable part 52 (the side away from the winding assembly) fit together to form a connecting section 53, and the connecting section 53 bypasses the pulley 26 and is fixed in the groove 221 of the fixed section by gluing to avoid sliding or falling off of the cable during lifting and lowering, thereby ensuring stable signal transmission; the bottom end of the lower cable part 52 is connected to an external device through a fixed connector 6 to realize signal transmission.

[0030] An antenna device includes an antenna body and the above-mentioned antenna cable and winding device; the antenna body is arranged on the top surface of the top mounting plate 4 and is connected to the top of the cable. The antenna body is a radio frequency antenna, which is used to transmit or receive radio frequency signals and can be used in wireless communication, navigation, broadcasting, radar and other systems.

[0031] The above-mentioned method for lifting and lowering the antenna device comprises the following steps: Step 1: Issue a lifting command, the lifting assembly 3 rises, so that the top mounting plate 4 rises accordingly, and the antenna body begins to rise; As the lifting sleeve moves, the upper half 51 and the lower half 52 of the cable are continuously released through the first reel 21, and the second reel 23 synchronously controls the height of the pulley 26 to always be at half the height of the lifting assembly 3, ensuring that the connection between the cable and the antenna body remains stable throughout the entire lifting process; As the cable in the first reel 21 is continuously released, the cable tension is controlled by the first reel 21 and the second reel 23 to ensure that the connection between the upper half 51 of the cable and the antenna body is not stretched or loosened; When the antenna body reaches the desired height, the lifting assembly 3 stops moving, and the first reel 21 and the second reel 23 need to maintain the cable tension to ensure that the position of the antenna body is stable and will not change due to external forces (such as wind), thus completing the lifting operation; Step 2: issue a descending command, the lifting assembly 3 is lowered, so that the top mounting plate 4 is lowered, and the antenna body begins to descend; As the lifting sleeve moves, the first cable reel 21 retracts the upper half 51 and the lower half 52 of the cable, and the second cable reel 23 synchronously controls the height of the pulley 26 to always be at half the height of the lifting assembly 3, ensuring that the connection between the cable and the antenna body remains stable throughout the entire lifting process; As the cable in the first reel 21 is continuously recovered, the cable tension is controlled by the first reel 21 and the second reel 23 to ensure that the connection between the upper half 51 of the cable and the antenna body is not stretched or loosened; When the antenna body descends to the lowest height, the lifting assembly 3, the first reel 21 and the second reel 23 stop moving, and the descending operation is completed.

Claims

1. An antenna cable and a winding device, comprising a base (1), a winding assembly, a lifting assembly (3), a top mounting plate (4) and a cable; Features: The base (1) is provided with a fixed connector (6); the bottom and top ends 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 setting the antenna body; The cable winding assembly comprises a first cable reel (21) arranged on a base (1), a main cable (22) wound on the first cable reel (21), a second cable reel (23) arranged on a top mounting plate (4), a secondary cable (24) wound on the second cable reel (23), a pulley frame (25), and a pulley (26) arranged on the pulley frame (25); the bottom end of the secondary cable (24) is connected to the pulley frame (25) so that the height of the pulley (26) is at half the height of the lifting assembly (3); The top end of the cable is used to connect to the antenna body to achieve signal transmission and is fixed on the top mounting plate (4), and the bottom end is used to connect to an external device through a fixed connector (6) to achieve signal transmission; a connecting section (53) is provided in the middle of the cable, and the connecting section (53) bypasses the pulley (26) to connect to the top end of the main cable (22).

2. The antenna cable and winding device according to claim 1, characterized in that: The main cable (22) is a flat structure, and a fixing section is provided at the top. A groove (221) is provided at the end of the fixing section and runs through the width direction of the fixing section. The width of the groove (221) is adapted to the thickness of the connecting section (53). The cable comprises an upper cable part (51) and a lower cable part (52) both of which are flat structures. The top of the upper cable part (51) is used to connect to an antenna body to achieve signal transmission. The top is fixed on a top mounting plate (4). The bottom of the upper cable part (51) is electrically connected to the top of the lower cable part (52). The outer side surface of the bottom of the upper cable part (51) and the outer side surface of the top of the lower cable part (52) fit together to form the connecting section (53). The end of the connecting section (53) is fixed in the groove (221). The bottom of the lower cable part (52) is connected to an external device via a fixed connector (6) to achieve signal transmission.

3. An antenna cable and winding device according to claim 1 or 2, characterized in that: The first wire reel (21) adopts a wire reel, which comprises a support (211) arranged on a base (1), and a central axis, a reel core (213) and a reel surface (214) which are sequentially sleeved from the inside to the outside, wherein both ends of the central axis are connected to the support (211) via bearings, a coil spring (212) is arranged between the central axis and the reel core (213), one end of the coil spring (212) is fixed on the reel core (213), and the other end is connected to the support (211) via the central axis; The second wire reel (23) is a winch.

4. The antenna cable and winding device according to claim 3, characterized in that: The lifting assembly (3) comprises a driving unit and a plurality of lifting sleeves which are sequentially sleeved from the inside to the outside, wherein 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); and 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, characterized in that: The main cable (22) and the auxiliary cable (24) are both made of steel cables.

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

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

8. A method for lifting and lowering the antenna device according to claim 6, characterized in that: The steps include: Step 1: Send a lifting command, the lifting assembly (3) rises, so that the top mounting plate (4) rises accordingly, and the antenna body begins to rise; as the lifting assembly (3) moves, the cable is continuously released through the first reel (21), and the second reel (23) synchronously controls the height of the pulley (26) to always be at half the height of the lifting assembly (3); When the antenna body reaches the required height, the lifting assembly (3) stops lifting, completing the lifting operation; In the above process, the cable tension is always controlled by the first cable reel (21) and the second cable reel (23) until step 2 is started; Step 2, issuing a descending command, the lifting assembly (3) is lowered, so that the top mounting plate (4) is lowered accordingly, and the antenna body begins to descend; as the lifting assembly (3) moves, the cable is recovered by the first reel (21), and the second reel (23) synchronously controls the height of the pulley (26) to always be at half the height of the lifting assembly (3); At the same time, the cable tension is controlled by the first cable reel (21) and the second cable reel (23); When the antenna body descends to the lowest height, the lifting assembly (3), the first wire reel (21) and the second wire reel (23) stop moving, completing the descending operation.

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