A low-orbit satellite signal receiving antenna capable of preventing feeder line from winding

Abstract

The present invention discloses a low-orbit satellite signal receiving antenna capable of preventing feeder line from being entangled with the antenna surface, comprising an antenna surface, a high-frequency head, a first feeder line, a second feeder line, a third feeder line, a fourth feeder line, a pitch adjustment rod, a first base, a rotating disk, a rotating shaft, a first conical spring, a second conical spring, a first bearing, a second bearing and a second base. The antenna surface of the present invention can rotate freely clockwise or counterclockwise around the rotating shaft. During rotation, the third feeder line and the fourth feeder line will not be entangled with the antenna surface due to following the rotation. The present invention also utilizes the weight of the components, making it easier to stably fix the antenna.

Description

Technical Field

[0001] The invention relates to the field of satellite communications, and in particular to a low-orbit satellite signal receiving antenna capable of preventing feeder line from being entangled. Background Art

[0002] To date, there are still about 3 billion people in the world who have no way to connect to the Internet, accounting for about 38% of the total population. Low-orbit satellite communications can effectively provide Internet connection services to more people, and at the same time, it is convenient to solve the communication difficulties in mountains, deserts, oceans, and aerospace flights. As the technology improves and matures, it is gaining more attention and expanding its practical applications.

[0003] Low-orbit satellites operate in orbits at an altitude of 200 to 2,000 kilometers from the ground. Compared with medium and high-orbit satellite communication signal transmission, low-orbit satellite communication has the advantages of short transmission delay and small signal path loss. Satellite signal propagation is mainly direct propagation path, which reduces the Rayleigh fading caused by multipath transmission of signals in traditional ground cellular mobile communications. These characteristics increase the technical advantages of low-orbit satellite systems in providing mobile satellite Internet services.

[0004] The geosynchronous satellite orbit currently widely used for television broadcasting and low-speed data transmission is located at an altitude of 36,000 kilometers from the ground. The period of the satellite's flight around the earth is approximately equal to the earth's rotation period (about 24 hours). The position of the satellite and the earth remains relatively constant. In order to achieve the best reception of satellite communication signals on the ground, the ground antenna receiving satellite signals needs to ensure that it is aligned with the relatively fixed satellite position. In comparison, low-orbit communication satellites have low orbits and short periods of satellite flight around the earth (for example, a typical low-orbit satellite orbit is 300 kilometers from the ground, and the satellite's flight period around the earth is about 1.5 hours). Therefore, the time for the satellite to fly over the effective receiving position of the ground receiving antenna is short (about a few minutes), and the position coordinate point of the low-orbit satellite changes rapidly during flight. The ground signal receiving antenna needs to flexibly and dynamically align with the satellite in a very short time to maximize the antenna gain of the satellite signal, and then receive the satellite signal well. During the flight of the low-orbit satellite, a beacon signal will be transmitted on the designated communication channel. The beacon signal sent by the low-orbit satellite when it passes by the top can be used to measure and grasp the satellite flight status information using a convenient satellite signal receiving antenna, which is of great significance to the signal measurement and system operation and maintenance of the low-orbit satellite communication system.

[0005] At present, the dynamic alignment of ground small-aperture signal receiving antennas to low-orbit satellites (including pitch angle adjustment and azimuth angle adjustment) mainly uses phased array alignment methods and mechanical rotation alignment methods. Among them, in the phased array alignment method, the antenna needs precise baseband or RF phase delay adjustment, relying on high-end digital signal processing and RF chips. The performance of this method is affected by many factors such as materials, volume, chips, algorithms, etc., and the production cost is high. It is not suitable for scenarios that require small-scale use of satellite signal receiving antennas. In the method of using a relatively simple mechanical or manual rotation of the satellite signal receiving antenna to align with the low-orbit satellite, during the rotation alignment process, the feeder connecting the ground satellite signal receiving antenna and the ground satellite signal receiver will rotate synchronously around the rotation center as the antenna surface of the receiving antenna rotates. As the rotation angle continues to increase in the positive and reverse directions, the feeder will be wound around the rotation axis, resulting in the inability of the satellite signal receiving antenna to continue to flexibly and freely rotate and align, reducing the agility and accuracy of the antenna alignment action, reducing the receiving antenna gain required to receive satellite signals, and thus reducing the probability of successfully capturing and receiving satellite signals. Patent 202111393337.X discloses a small rotating radar that uses wireless transmission and reception of signals to solve the problem of feeder winding, but there are the following problems: the transmission and reception of wireless signals requires corresponding solar power modules, the signal has secondary losses during wireless transmission, and the components are relatively complex. Based on the current situation, how to design a satellite signal receiving antenna suitable for receiving low-orbit satellite signals, achieve satellite signal reception alignment, and prevent the feeder on the receiving antenna side from winding has become a problem that needs to be solved. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a low-orbit satellite signal receiving antenna that prevents feeder line from being entangled, so as to solve the problems raised in the background technology.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A low-orbit satellite signal receiving antenna for preventing feeder from following winding, comprising an antenna surface, a high-frequency head, a first feeder, a second feeder, a third feeder, a fourth feeder, a pitch adjustment rod, a first base, a rotating disk, a rotating shaft, a first conical spring, a second conical spring, a first bearing, a second bearing, and a second base;

[0009] The surface of the antenna surface is parabolic, one side of the antenna surface is concave, and the other side of the antenna surface is convex. A pitch adjustment rod is arranged at the central position of the convex surface of the antenna surface, and the pitch adjustment rod is V-shaped. One end of the pitch adjustment rod is fixedly connected to the convex surface of the antenna surface, and the other end of the pitch adjustment rod is close to the concave surface of the antenna surface. The lower edge of the antenna surface is located above the V-shaped turning position of the pitch adjustment rod and does not contact the pitch adjustment rod.

[0010] A clamping buckle is provided at one end of the pitch adjustment rod close to the concave surface of the antenna surface, the clamping buckle is fixedly connected to the pitch adjustment rod, and a high-frequency head is provided at the position of the clamping buckle, and the high-frequency head is fixedly connected to the clamping buckle;

[0011] A first base is horizontally arranged below the V-shaped turning point of the pitch adjustment rod, and the first base is semi-movably connected to the pitch adjustment rod;

[0012] The first base is in the shape of a flat ring, a rotating disk is horizontally arranged below the first base, the rotating disk is a circular flat plate, the rotating disk is fixedly connected to the first base, a first through hole is arranged at the center of the rotating disk, and a second through hole and a third through hole are respectively arranged between the first through hole and the edge of the rotating disk;

[0013] A rotating shaft is vertically arranged downwardly at a position directly opposite to the first through hole below the rotating disk, the rotating shaft is a cylindrical insulator, the diameter of the cross-section circle of the rotating shaft is larger than the diameter of the first through hole, a first internally threaded blind hole is arranged downwardly at the center position of the upper end surface of the rotating shaft, the nominal diameter of the first internally threaded blind hole is equal to the diameter of the first through hole, a first screw is arranged at the first through hole, the first screw passes through the first through hole from top to bottom into the first internally threaded blind hole, and the rotating disk is fixedly connected to the rotating shaft through the first screw;

[0014] The rotating shaft is axially arranged from the upper end surface, and a first groove and a second groove are arranged at the side cylindrical surface from top to bottom, the upper end opening of the first groove is located directly below the second through hole of the rotating disk, and the upper end opening of the second groove is located directly below the third through hole of the rotating shaft, the length of the second groove in the vertical direction is greater than the length of the first groove in the vertical direction, a first bearing is arranged at the lower end tail position of the first groove, the cylindrical surface of the rotating shaft contacts and is fixedly connected to the inner ring of the first bearing, and a second bearing is arranged at the lower end tail position of the second groove, the side cylindrical surface of the rotating shaft contacts and is fixedly connected to the inner ring of the second bearing;

[0015] A first blind hole is arranged downward from the bottom surface at the tail position of the lower end of the first groove, and a second blind hole is arranged downward from the bottom surface at the tail position of the lower end of the second groove. A first conical spring and a second conical spring are arranged at the bottom surfaces of the first blind hole and the second blind hole, respectively. When the first conical spring is not compressed, the upper end of the first conical spring is higher than the side cylindrical surface of the rotating shaft, and the lower end surface diameter of the first conical spring is equal to the diameter of the first blind hole. When the first conical spring is compressed, the upper end surface of the first conical spring contacts the inner ring of the first bearing. When the second conical spring is not compressed, the upper end of the second conical spring is higher than the side cylindrical surface of the rotating shaft, and the lower end surface diameter of the second conical spring is equal to the diameter of the second blind hole. When the second conical spring is compressed, the upper end surface of the second conical spring contacts the inner ring of the second bearing.

[0016] A first feeder is arranged at the positive pole position of the high-frequency head, one end of the first feeder is electrically connected to the positive pole of the high-frequency head, and the other end of the first feeder is electrically connected to the first conical spring; a second feeder is arranged at the negative pole position of the high-frequency head, one end of the second feeder is electrically connected to the negative pole of the high-frequency head, and the other end of the second feeder is electrically connected to the second conical spring;

[0017] A first bearing seat and a second bearing seat are respectively arranged at the outer ring positions of the first bearing and the second bearing, a third feeder and a fourth feeder are respectively arranged at the bottom ends of the first bearing seat and the second bearing seat, one end of the third feeder and the fourth feeder are respectively electrically connected to the first bearing seat and the second bearing seat, and the other end of the third feeder and the fourth feeder are respectively electrically connected to the positive electrode and the negative electrode of the satellite signal processor;

[0018] The first bearing seat and the second bearing seat are both arranged horizontally, and the first insulating block and the second insulating block are respectively arranged at the bottom ends of the first bearing seat and the second bearing seat, one side end surface of the first insulating block is fixedly connected to the first bearing seat, and one side end surface of the second insulating block is fixedly connected to the second bearing seat, and a second base is arranged at the other side end surface of the first insulating block and the second insulating block, and the other side end surface of the first insulating block and the other side end surface of the second insulating block are fixedly connected to the second base.

[0019] Preferably, the second base includes a shell and a cover plate;

[0020] The shell is a hollow box structure with a U-shaped upper end surface and a closed plane lower end surface. A fourth through hole is provided on the vertical side end surface of the shell. The third feeder and the fourth feeder pass through the fourth through hole and are electrically connected to the positive electrode and the negative electrode of the satellite signal processor respectively.

[0021] A cover plate is arranged at a position directly above the upper end surface of the shell, and a fifth through hole is arranged at a central position of the cover plate, and the rotating shaft passes through the fifth through hole, and the side cylindrical surface of the rotating shaft does not contact the inner wall of the fifth through hole;

[0022] A plurality of sixth through holes are evenly spaced along the edge of the cover plate surface, a plurality of second internally threaded blind holes of the same number are arranged at positions of the shell located below the cover plate and facing the sixth through holes upward, a plurality of second screws are arranged at the positions of the sixth through holes, the second screws pass through the sixth through holes on the cover plate into the second internally threaded blind holes, and the cover plate is fixedly connected to the shell by the second screws;

[0023] The upper end surface of the rotating shaft is higher than the upper end surface of the cover plate of the second base;

[0024] The lower end surface of the rotating shaft is higher than the lower surface of the shell cavity of the second base.

[0025] Preferably, a plurality of seventh through holes and a plurality of third internally threaded blind holes are arranged in parallel at a position of an end surface of one side of the first insulating block close to the first bearing seat, the seventh through hole is opposite to the first cavity at the bottom of the first bearing, a plurality of fourth internally threaded blind holes are arranged at a position of a side wall of the housing close to the first insulating block and opposite to the seventh through hole, a plurality of third screws are arranged at the position of the seventh through hole, the third screws pass through the seventh through hole into the fourth internally threaded blind hole, the first insulating block is fixedly connected to the housing through the third screws, a plurality of fourth screws are arranged at the position of the bearing seat mounting hole of the first bearing seat, the fourth screws pass through the bearing seat mounting hole of the first bearing seat into the third internally threaded blind hole, and the first bearing seat is fixedly connected to the first insulating block through the fourth screws;

[0026] A plurality of eighth through holes and a plurality of fifth internally threaded blind holes are arranged in parallel at a position of the second insulating block close to the end surface of the second bearing seat, the eighth through hole is opposite to the second cavity at the bottom of the second bearing, a plurality of sixth internally threaded blind holes are arranged at a position of the side wall of the housing close to the second insulating block and opposite to the eighth through hole, a plurality of fifth screws are arranged at the position of the eighth through hole, the fifth screws pass through the eighth through hole into the sixth internally threaded blind hole, the second insulating block is fixedly connected to the housing through the fifth screws, a plurality of sixth screws are arranged at the position of the bearing seat mounting hole of the second bearing seat, the sixth screws pass through the bearing seat mounting hole of the second bearing seat into the sixth internally threaded blind hole, and the second bearing seat is fixedly connected to the second insulating block through the sixth screws;

[0027] The third feeder and the fourth feeder are fixedly and electrically connected to the fourth screw and the sixth screw respectively.

[0028] Preferably, a concave clip is provided at the upper end surface of the first base, a ninth through hole and a tenth through hole are respectively provided at the upper parts of the two vertical side surfaces of the concave clip facing each other, the pitch adjustment rod passes through the two side surfaces of the concave clip, an eleventh through hole is provided at the lower part of one end of the pitch adjustment rod close to the concave surface of the antenna surface and at the position corresponding to the ninth through hole and the tenth through hole, a first bolt is provided at the position of the ninth through hole, the first bolt passes through the ninth through hole, the eleventh through hole and the tenth through hole to the first gasket and the first nut, and the pitch adjustment rod is semi-movably connected to the concave clip through the first bolt;

[0029] A twelfth through hole is set at the central position of the bottom surface of the concave clip, a seventh internally threaded blind hole is set at the position of the upper end surface of the first base corresponding to the concave clip, and a seventh screw is set at the position of the twelfth through hole. The seventh screw passes through the twelfth through hole and enters the seventh internally threaded blind hole. The concave clip is fixedly connected to the first base by the seventh screw.

[0030] Preferably, the clamping buckle includes a clamping seat and a clamping cover, the clamping buckle is a hollow structure, the lower part of the clamping buckle is the clamping seat, the upper end surface of the clamping seat is a plane, a semicircular arc-shaped first clamping groove is arranged from top to bottom in the center of the upper end surface of the clamping seat, the radius of the first clamping groove is equal to the radius of the middle cross-sectional circle of the high-frequency head, both sides of the upper end of the first clamping groove are horizontal ear-shaped rectangular steps, and the upper end surfaces of the steps are respectively downwardly arranged with a thirteenth through hole and a fourteenth through hole, and an inverted third groove is inclined at the lower part of the clamping seat, the upper end surface of the third groove is a plane, and the upper end of the third groove The surface forms an obtuse angle with the vertical direction of the clamping cover, a fifteenth through hole is downwardly arranged at the center of the upper end surface of the third groove at the lower part of the clamping seat, the end of the concave surface of the pitch adjustment rod close to the antenna surface is inserted into the third groove at the lower part of the clamping seat, a sixteenth through hole is arranged at the position of the pitch adjustment rod corresponding to the fifteenth through hole on the upper end surface of the third groove at the lower part of the clamping seat, a second bolt, a second gasket, and a second nut are arranged at the position of the fifteenth through hole, the second bolt passes through the fifteenth through hole and the sixteenth through hole to the second gasket and the second nut, and the pitch adjustment rod is fixedly connected to the clamping seat through the second bolt;

[0031] The upper part of the clamping buckle is a clamping cover, which is arranged directly above the clamping seat. The shape of the clamping cover is symmetrical with the upper part of the clamping seat. The lower end face of the clamping cover is a plane. A semicircular second clamping groove is arranged from bottom to top in the center of the lower end face of the clamping cover. The radius of the second clamping groove is equal to the radius of the middle cross-sectional circle of the high-frequency head. The arc length of the second clamping groove is less than half of the circumference of the middle cross-sectional circle of the high-frequency head. Both sides of the upper end of the second clamping groove are ear-shaped rectangular steps. The upper end faces of the steps are respectively provided with a seventeenth through hole and an eighteenth through hole from top to bottom. The seventeenth through hole and the eighteenth through hole are respectively aligned with the thirteenth through hole and the fourteenth through hole. The two pairs of high-frequency head are of equal diameters, and a third bolt, a third gasket and a third nut are arranged at the position of the seventeenth through hole. The third bolt passes through the seventeenth through hole and the thirteenth through hole to the third gasket and the third nut. The fourth bolt, the fourth gasket and the fourth nut are arranged at the position of the eighteenth through hole respectively, and the fourth bolt passes through the eighteenth through hole and the fourteenth through hole to the fourth gasket and the fourth nut. The high-frequency head passes through the first clamping groove of the clamping seat of the clamping buckle and the second clamping groove of the clamping cover. The cylindrical side surface of the high-frequency head contacts the arc surface of the first clamping groove and the second clamping groove, and the clamping cover is fixedly connected to the clamping seat and the high-frequency head by the third bolt and the fourth bolt.

[0032] Preferably, the first base is provided with a plurality of nineteenth through holes along the circumferential direction, and the rotating disk is provided with a plurality of eighth internally threaded blind holes of the same number downwardly at positions corresponding to the nineteenth through holes on the upper end surface, the nominal diameter of the eighth internally threaded blind hole is equal to the diameter of the nineteenth through hole, and the opening of the eighth internally threaded blind hole is located directly below the nineteenth through hole, and a plurality of eighth screws are respectively provided at the positions of the nineteenth through holes of the first base, the eighth screws pass through the nineteenth through holes and into the eighth internally threaded blind holes, and the first base is fixedly connected to the rotating disk through the eighth screws.

[0033] Preferably, the second through holes and the third through holes are symmetrically distributed with the first through hole as the center.

[0034] Preferably, the first bearing and the second bearing are ball bearings.

[0035] The beneficial effects of the present invention are:

[0036] (1) The present invention provides a low-orbit satellite signal receiving antenna that prevents feeder line winding. The device comprises: a positive electrode of the high-frequency head of the satellite signal receiving antenna, a first feeder line, a first groove of the rotating shaft, a first conical spring, a first bearing, a first bearing seat, a third feeder line, and a positive electrode of a satellite signal processor; and a negative electrode of the high-frequency head of the satellite signal receiving antenna, a second feeder line, a second groove of the rotating shaft, a second conical spring, a second bearing, a second bearing seat, a fourth feeder line, and a negative electrode of the satellite signal processor. Thus, when the antenna surface of the satellite signal receiving antenna rotates with the rotating shaft to achieve alignment and receive the low-orbit satellite transmission signal, the third feeder line and the fourth feeder line connected to the positive and negative electrodes of the external satellite signal receiver will not rotate with the rotating shaft, thereby solving the feeder line winding problem that occurs when the traditional low-orbit satellite signal receiving antenna rotates.

[0037] (2) The present invention uses standardized bearings, bearing seats, and conical springs, which are easy to assemble and have low costs. In addition, the bearing components of the present invention use ball transmission bearings, which have good rotation effect and long service life.

[0038] (3) The components constituting the antenna of the present invention include: an antenna surface, a first base, a rotating disk, a rotating shaft, a second base, a first bearing, a first bearing seat, a second bearing, a second bearing seat, etc. The weight of the components of the present invention makes it more convenient to stably fix the low-orbit satellite signal receiving antenna of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 It is a vertical cross-sectional schematic diagram of the present invention;

[0042] Figure 3 It is a vertical cross-sectional schematic diagram of the concave surface of the second base facing the antenna surface of the present invention;

[0043] Figure 4 It is a vertical cross-sectional schematic diagram of the convex surface of the second base facing the antenna surface of the present invention;

[0044] Figure 5 It is a schematic diagram of the rotating disk of the present invention;

[0045] Figure 6 It is a schematic diagram of the rotation axis facing the first groove of the present invention;

[0046] Figure 7 It is a schematic diagram of the rotation axis facing the second groove of the present invention;

[0047] Figure 8 It is a schematic diagram of the cover plate of the present invention;

[0048] Fig. 9 It is a schematic diagram of the clamping cover, the clamping seat and the high-frequency head of the present invention;

[0049] Fig.10 It is a schematic diagram of the clamping cover and the upper part of the clamping seat of the present invention;

[0050] Fig.11 For the present invention Fig. 9 A partial front view of the lower part of the clamping seat in the direction of A;

[0051] Fig.12 is a schematic diagram of a concave clip of the present invention;

[0052] Fig.13 is a schematic diagram of a first base of the present invention;

[0053] Fig.14 is a schematic diagram of the second base (cut along one side) and the first insulating block of the present invention;

[0054] Fig.15is a schematic diagram of the second base (cut along one side) and the second insulating block of the present invention;

[0055] Fig.16 For the present invention Fig. 9 A partial axial view of the lower part of the clamping seat in the B direction.

[0056] Description of reference numerals:

[0057] 100-antenna surface, 110-high frequency head, 111-first feeder, 112-second feeder, 113-third feeder, 114-fourth feeder, 115-positive pole of high frequency head, 116-negative pole of high frequency head, 120-pitch adjustment rod, 130-first base, 140-rotating plate, 200-rotating axis, 210-first conical spring, 220-second conical spring, 230-first bearing, 240-second bearing, 300-second base, 101-concave surface, 102-convex surface, 141-first through hole, 142-second through hole, 143-third through hole, 201-first internal thread blind hole, 145-first screw, 2 02-first groove, 203-second groove, 230-first bearing, 240-second bearing, 204-first blind hole, 205-second blind hole, 210-first conical spring, 220-second conical spring, 231-first bearing seat, 241-second bearing seat, 232-first insulating block, 242-second insulating block, 180-concave clip, 310-housing, 320-cover plate, 311-fourth through hole, 321-fifth through hole, 322-sixth through hole, 312-second internal threaded blind hole, 323-second screw, 233-seventh through hole, 234-third internal threaded blind hole, 313-fourth internal threaded blind hole, 2 35-third screw, 236-fourth screw, 237-first bearing seat mounting hole, 238-first cavity, 243-eighth through hole, 244-fifth internal thread blind hole, 314-sixth internal thread blind hole, 245-fifth screw, 246-sixth screw, 247-second bearing seat mounting hole, 248-second cavity, 181-ninth through hole, 182-tenth through hole, 121-eleventh through hole, 183-first bolt, 184-first gasket, 185-first nut, 186-twelfth through hole, 131-seventh internal thread blind hole, 187-seventh screw, 161-first clamping groove, 162-thirteenth through hole, 1 63-the fourteenth through hole, 164-the fifteenth through hole, 122-the sixteenth through hole, 165-the second bolt, 166-the second gasket, 167-the second nut, 168-the third groove, 172-the seventeenth through hole, 173-the eighteenth through hole, 174-the third bolt, 175-the third gasket, 176-the third nut, 177-the fourth bolt, 178-the fourth gasket, 179-the fourth nut, 132-the nineteenth through hole, 144-the eighth internal threaded blind hole, 133-the eighth screw, 400-satellite signal processor, 401-the positive pole of the satellite signal processor, 402-the negative pole of the satellite signal processor, 160-the clamping seat. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] Embodiment 1: Figure 1 to Figure 5 As shown, the present invention provides a low-orbit satellite signal receiving antenna for preventing feeder from following winding, comprising an antenna surface 100, a high-frequency head 110, a first feeder 111, a second feeder 112, a third feeder 113, a fourth feeder 114, a pitch adjustment rod 120, a first base 130, a rotating disk 140, a rotating shaft 200, a first conical spring 210, a second conical spring 220, a first bearing 230, a second bearing 240, and a second base 300;

[0060] The surface of the antenna surface 100 is in a parabolic shape, one side of the antenna surface 100 is a concave surface 101, and the other side of the antenna surface 100 is a convex surface 102. A pitch adjustment rod 120 is arranged at the center of the convex surface 102 of the antenna surface 100. The pitch adjustment rod 120 is V-shaped, one end of the pitch adjustment rod 120 is fixedly connected to the convex surface 102 of the antenna surface 100, and the other end of the pitch adjustment rod 120 is close to the concave surface 101 of the antenna surface 100. The lower edge of the antenna surface 100 is located above the V-shaped turning position of the pitch adjustment rod 120 and does not contact the pitch adjustment rod 120.

[0061] A clamping buckle 150 is provided at one end of the pitch adjustment rod 120 close to the concave surface 101 of the antenna surface 100, and the clamping buckle 150 is fixedly connected to the pitch adjustment rod 120. A high-frequency head 110 is provided at the position of the clamping buckle 150, and the high-frequency head 110 is fixedly connected to the clamping buckle 150;

[0062] A first base 130 is horizontally disposed below the V-shaped turning point of the pitch adjustment rod 120, and the first base 130 is semi-movably connected to the pitch adjustment rod 120;

[0063] The first base 130 is in a flat ring shape, a rotating disk 140 is horizontally arranged below the first base 130, the rotating disk 140 is a circular flat plate, the rotating disk 140 is fixedly connected to the first base 130, a first through hole 141 is arranged at the center of the rotating disk 140, and a second through hole 142 and a third through hole 143 are respectively arranged between the first through hole 141 and the edge of the rotating disk 140;

[0064] like Figure 6 , Figure 7As shown, a rotating shaft 200 is vertically arranged downwardly at a position directly opposite to the first through hole 141 below the rotating disk 140. The rotating shaft 200 is a cylindrical insulator. The diameter of the cross-sectional circle of the rotating shaft 200 is larger than the diameter of the first through hole 141. A first internally threaded blind hole 201 is arranged downwardly at the center position of the upper end surface of the rotating shaft 200. The nominal diameter of the first internally threaded blind hole 201 is equal to the diameter of the first through hole 141. A first screw 145 is arranged at the first through hole 141. The first screw 145 passes through the first through hole 141 from top to bottom into the first internally threaded blind hole 201. The rotating disk 140 is fixedly connected to the rotating shaft 200 through the first screw 145.

[0065] The rotating shaft 200 is axially arranged from the upper end surface, and a first groove 202 and a second groove 203 are respectively arranged at the side cylindrical surface position from top to bottom. The upper end opening of the first groove 202 is located directly below the second through hole 142 of the rotating disk 140, and the upper end opening of the second groove 203 is located directly below the third through hole 143 of the rotating shaft. The length of the second groove 203 in the vertical direction is greater than the length of the first groove 202 in the vertical direction. A first bearing 230 is arranged at the lower end tail position of the first groove 202, and the cylindrical surface of the rotating shaft 200 contacts and is fixedly connected to the inner ring of the first bearing 230. A second bearing 240 is arranged at the lower end tail position of the second groove 203, and the side cylindrical surface of the rotating shaft 200 contacts and is fixedly connected to the inner ring of the second bearing 240.

[0066] A first blind hole 204 is provided at the lower end of the first groove 202 downward from the bottom surface, and a second blind hole 205 is provided at the lower end of the second groove 203 downward from the bottom surface. A first conical spring 210 and a second conical spring 220 are provided at the bottom surfaces of the first blind hole 204 and the second blind hole 205, respectively. When the first conical spring 210 is not compressed, the upper end of the first conical spring 210 is higher than the side cylindrical surface of the rotating shaft 200, and the lower end surface diameter of the first conical spring 210 is equal to The diameter of the first blind hole 204 is such that the upper end surface of the first conical spring 210 contacts the inner ring of the first bearing 230 when the first conical spring 210 is in a compressed state. The upper end of the second conical spring 220 is higher than the side cylindrical surface of the rotating shaft 200 when the second conical spring 220 is in a non-compressed state. The diameter of the lower end surface of the second conical spring 220 is equal to the diameter of the second blind hole 205. The upper end surface of the second conical spring 220 contacts the inner ring of the second bearing 240 when the second conical spring 220 is in a compressed state.

[0067] A first feeder 111 is provided at the positive electrode 115 of the high-frequency head 110, one end of the first feeder 111 is electrically connected to the positive electrode 115 of the high-frequency head 110, and the other end of the first feeder 111 is electrically connected to the first conical spring 210; a second feeder 112 is provided at the negative electrode 116 of the high-frequency head 110, one end of the second feeder 112 is electrically connected to the negative electrode 116 of the high-frequency head 110, and the other end of the second feeder 112 is electrically connected to the second conical spring 220;

[0068] like Figure 2 to Figure 4 As shown, a first bearing seat 231 and a second bearing seat 241 are respectively arranged at the outer ring positions of the first bearing 230 and the second bearing 240, and a third feeder 113 and a fourth feeder 114 are respectively arranged at the bottom ends of the first bearing seat 231 and the second bearing seat 241, one end of the third feeder 113 and the fourth feeder 114 are respectively electrically connected to the first bearing seat 231 and the second bearing seat 241, and the other ends of the third feeder 113 and the fourth feeder 114 are respectively electrically connected to the positive electrode 401 and the negative electrode 402 of the satellite signal processor 400;

[0069] The first bearing seat 231 and the second bearing seat 241 are both arranged horizontally, and the first insulating block 232 and the second insulating block 242 are respectively arranged at the bottom ends of the first bearing seat 231 and the second bearing seat 241, one side end face of the first insulating block 232 is fixedly connected to the first bearing seat 231, and one side end face of the second insulating block 242 is fixedly connected to the second bearing seat 241, and a second base 300 is arranged at the other side end face position of the first insulating block 232 and the second insulating block 242, and the other side end face of the first insulating block 232 and the other side end face of the second insulating block 242 are fixedly connected to the second base 300.

[0070] Further, such as Figure 8 , Fig.14 , Fig.15 As shown, the second base 300 includes a shell 310 and a cover plate 320;

[0071] The housing 310 is a hollow box structure with a U-shaped upper end surface and a closed plane lower end surface. A fourth through hole 311 is provided on the vertical side end surface of the housing 310. The third feeder 113 and the fourth feeder 114 pass through the fourth through hole 311 to be electrically connected to the positive electrode 401 and the negative electrode 402 of the satellite signal processor 400 respectively.

[0072] A cover plate 320 is disposed at a position directly above the upper end surface of the housing 310, and a fifth through hole 321 is disposed at a central position of the cover plate 320, through which the rotating shaft 200 passes, and a side cylindrical surface of the rotating shaft 200 does not contact an inner wall of the fifth through hole 321;

[0073] The surface of the cover plate 320 is evenly spaced along the edge thereof. The housing 310 is provided with a plurality of second internally threaded blind holes 312 of the same number located below the cover plate 320 and facing the sixth through holes 322 upward. A plurality of second screws 323 are provided at the positions of the sixth through holes 322. The second screws 323 pass through the sixth through holes 322 on the cover plate 320 and enter the second internally threaded blind holes 312. The cover plate 320 is fixedly connected to the housing 310 by the second screws 323.

[0074] The upper end surface of the rotating shaft 200 is higher than the upper end surface of the cover plate 320 of the second base 300;

[0075] The lower end surface of the rotating shaft 200 is higher than the lower surface of the inner cavity of the shell 310 of the second base 300 .

[0076] Further, such as Figure 3 , Fig.14 , Fig.15 As shown, a plurality of seventh through holes 233 and a plurality of third internally threaded blind holes 234 are arranged in parallel at a position of an end surface of one side of the first insulating block 232 close to the first bearing seat 231, the seventh through hole 233 is opposite to the first cavity 238 at the bottom of the first bearing 230, a plurality of fourth internally threaded blind holes 313 are arranged at a position of the side wall of the housing 310 close to the first insulating block 232 and opposite to the seventh through hole 233, a plurality of third screws 235 are arranged at the position of the seventh through hole 233, the third screws 235 pass through the seventh through hole 233 to the fourth internally threaded blind hole 313, the first insulating block 232 is fixedly connected to the housing 310 by the third screws 235, a plurality of fourth screws 236 are arranged at the position of the bearing seat mounting hole 237 of the first bearing seat 231, the fourth screws 236 pass through the bearing seat mounting hole 237 of the first bearing seat 231 to the third internally threaded blind hole 234, the first bearing seat 231 is fixedly connected to the first insulating block 232 by the fourth screws 236;

[0077] A plurality of eighth through holes 243 and a plurality of fifth internally threaded blind holes 244 are arranged in parallel at a position of the second insulating block 242 close to the end surface of the second bearing seat 241, the eighth through hole 243 is opposite to the second cavity 248 at the bottom of the second bearing 240, a plurality of sixth internally threaded blind holes 314 are arranged at a position of the side wall of the housing 310 close to the second insulating block 242 and opposite to the eighth through hole 243, a plurality of fifth screws 245 are arranged at the position of the eighth through hole 243, the fifth screws 245 pass through the eighth through hole 243 to the sixth internally threaded blind hole 314, the second insulating block 242 is fixedly connected to the housing 310 by the fifth screws 245, a plurality of sixth screws 246 are arranged at the position of the bearing seat mounting hole 247 of the second bearing seat 241, the sixth screws 246 pass through the bearing seat mounting hole 247 of the second bearing seat 241 to the sixth internally threaded blind hole 314, the second bearing seat 241 is fixedly connected to the second insulating block 242 by the sixth screws 246;

[0078] The third feed line 113 and the fourth feed line 114 are fixedly and electrically connected to the fourth screw 236 and the sixth screw 246 respectively.

[0079] Further, such as Fig.12 , Fig.13 As shown, a concave clip 180 is provided at the upper end surface of the first base 130, and a ninth through hole 181 and a tenth through hole 182 are respectively provided at the upper parts of the two vertical side surfaces of the concave clip 180 facing each other, and the pitch adjustment rod 120 passes through the two side surfaces of the concave clip 180, and an eleventh through hole 121 is provided at the lower part of one end of the pitch adjustment rod 120 close to the concave surface 101 of the antenna surface 100 and corresponding to the ninth through hole 181 and the tenth through hole 182, and a first bolt 183 is provided at the position of the ninth through hole 181, and the first bolt 183 passes through the ninth through hole 181, the eleventh through hole 121 and the tenth through hole 182 to the first gasket 184 and the first nut 185, and the pitch adjustment rod 120 is semi-movably connected with the concave clip 180 through the first bolt 183;

[0080] A twelfth through hole 186 is provided at the central position of the bottom surface of the concave clip 180, a seventh internally threaded blind hole 131 is provided at a position on the upper end surface of the first base 130 corresponding to the concave clip 180, a seventh screw 187 is provided at the position of the twelfth through hole 186, the seventh screw 187 passes through the twelfth through hole 186 and enters the seventh internally threaded blind hole 131, and the concave clip 180 is fixedly connected to the first base 130 by the seventh screw 187.

[0081] Further, such as Figures 9 to 11 , Fig.16As shown, the clamping buckle 150 includes a clamping seat 160 and a clamping cover 170. The clamping buckle 150 is a hollow structure. The lower part of the clamping buckle 150 is the clamping seat 160. The upper end surface of the clamping seat 160 is a plane. A semicircular first clamping groove 161 is arranged from top to bottom in the center of the upper end surface of the clamping seat 160. The radius of the first clamping groove 161 is equal to the radius of the middle cross-sectional circle of the high-frequency head 110. Both sides of the upper end of the first clamping groove 161 are ear-shaped rectangular parallelepiped steps. The upper end surfaces of the steps are respectively downwardly arranged with a thirteenth through hole 162 and a fourteenth through hole 163. The lower part of the clamping seat 160 is inclinedly arranged with an inverted third groove 168. The upper end surface of the third groove 168 is a plane. The upper end surface of the third groove 168 is vertically aligned with the clamping cover 170. An obtuse angle is formed, a fifteenth through hole 164 is downwardly arranged at the center of the upper end surface of the third groove 168 at the lower part of the clamping seat 160, the end of the pitch adjustment rod 120 close to the concave surface 101 of the antenna surface 100 is inserted into the third groove 168 at the lower part of the clamping seat 160, a sixteenth through hole 122 is arranged at the position of the pitch adjustment rod 120 corresponding to the fifteenth through hole 164 on the upper end surface of the third groove 168 at the lower part of the clamping seat 160, a second bolt 165, a second gasket 166, and a second nut 167 are arranged at the position of the fifteenth through hole 164, the second bolt 165 passes through the fifteenth through hole 164 and the sixteenth through hole 122, to the second gasket 166 and the second nut 167, and the pitch adjustment rod 120 is fixedly connected to the clamping seat 160 through the second bolt 165;

[0082] The upper part of the clamping buckle 150 is a clamping cover 170, and the clamping cover 170 is arranged directly above the clamping seat 160. The shape of the clamping cover 170 is symmetrical with the upper part of the clamping seat 160. The lower end surface of the clamping cover 170 is a plane. A semicircular second clamping groove 171 is arranged from bottom to top in the center of the lower end surface of the clamping cover 170. The radius of the second clamping groove 171 is equal to the radius of the middle cross-sectional circle of the high-frequency head 110. The arc length of the second clamping groove 171 is less than half of the circumference of the middle cross-sectional circle of the high-frequency head 110. Both sides of the upper end of the second clamping groove 171 are ear-shaped rectangular steps. The upper end surfaces of the steps are respectively provided with a seventeenth through hole 172 and an eighteenth through hole 173 from top to bottom. The seventeenth through hole 172 and the eighteenth through hole 173 are respectively opposite to the thirteenth through hole 162 and the fourteenth through hole 163 and have the same diameter. At the position of the seventeenth through hole 172 A third bolt 174, a third gasket 175, and a third nut 176 are provided. The third bolt 174 passes through the seventeenth through hole 172 and the thirteenth through hole 162 to the third gasket 175 and the third nut 176. A fourth bolt 177, a fourth gasket 178, and a fourth nut 179 are provided at the position of the eighteenth through hole 173. The fourth bolt 177 passes through the eighteenth through hole 173 and the fourteenth through hole 163 to the fourth gasket 178 and the fourth nut 179. The high-frequency head 110 passes through the first clamping groove 161 of the clamping seat 160 of the clamping buckle 150 and the second clamping groove 171 of the clamping cover 170. The cylindrical side surface of the high-frequency head 110 contacts the arc surface of the first clamping groove 161 and the second clamping groove 171. The clamping cover 170 is fixedly connected to the clamping seat 160 and the high-frequency head 110 by the third bolt 174 and the fourth bolt 177.

[0083] Further, such as Figure 5 As shown, the first base 130 is respectively provided with a plurality of nineteenth through holes 132 along the circumferential direction, and the rotating disk 140 is respectively provided with the same number of eighth internally threaded blind holes 144 downwardly at positions corresponding to the nineteenth through holes 132 on the upper end surface, the eighth internally threaded blind holes 144 have a nominal diameter equal to the diameter of the nineteenth through hole 132, and the openings of the eighth internally threaded blind holes 144 are located directly below the nineteenth through hole 132, and a plurality of eighth screws 133 are respectively provided at the positions of the nineteenth through holes 132 of the first base 130, the eighth screws 133 pass through the nineteenth through holes 132 to the eighth internally threaded blind holes 144, and the first base 130 is fixedly connected to the rotating disk 140 through the eighth screws 133.

[0084] Furthermore, the second through holes 142 and the third through holes 143 are symmetrically distributed with the first through hole 141 as the center.

[0085] Furthermore, the first bearing 230 and the second bearing 240 are ball bearings.

[0086] How it works: See Figures 1 to 16 , the specific principle is described as follows:

[0087] First, complete the connection of the electrical transmission path for receiving the satellite signal. Figure 1 to Figure 7 , Figures 9 to 13 , Fig.16As shown, the satellite electrical signals received by the positive and negative electrodes of the high-frequency head 110 from the antenna surface 100 are connected to the satellite signal processor 400: the antenna surface 100 of the present invention is fixedly connected to the pitch adjustment rod 120, and a clamping buckle 150 is provided on the top of one end of the pitch adjustment rod 120. The top of one end of the pitch adjustment rod 120 is inserted into the third groove 168 at the lower part of the clamping seat 160 of the clamping buckle 150. The high-frequency head 110 for receiving satellite signals is fastened by using the first clamping groove 161 of the clamping seat 160 of the clamping buckle 150 and the second clamping groove 171 of the clamping cover 170; the pitch adjustment rod 120 is semi-movably connected to the first base 130 through the concave clip 180, and the first clamping groove 161 of the clamping seat 160 of the clamping buckle 150 is connected to the first base 130. A base 130 is fixedly connected to the rotating disk 140 below. The first base 130 has the same central position as the rotating disk 140. At the central position, it is fixedly connected to the rotating shaft 200 by a first screw 145. A first groove 202 and a second groove 203 are provided on the side wall of the rotating shaft 200. The positive electrode and the negative electrode of the tail end of the high-frequency head 110 are respectively connected to the first feeder 111 and the second feeder 112. The first feeder 111 passes downward through the first groove 202 and is electrically connected to the first conical spring 210 disposed in the blind hole 204 of the first groove 202. Similarly, the second feeder 112 passes downward through the second groove 203 and is electrically connected to the second blind hole 205 disposed at the bottom of the second groove 203. The second conical spring 220 is electrically connected to the first groove 202 and the second groove 203. Next, the first bearing 230 and the second bearing 240 are respectively arranged at the bottom of the first groove 202 and the second groove 203 of the rotating shaft 200. The upper ends of the first conical spring 210 and the second conical spring 220 contact the inner rings of the first bearing 230 and the second bearing 240 respectively, and the rotating shaft 200 passes through the inner rings of the first bearing 230 and the second bearing 240, and is fixedly connected to the first bearing 230 and the second bearing 240, wherein the first conical spring 210 is located below the inner ring of the first bearing 230, and the second conical spring 220 is located below the inner ring of the second bearing 240, so as to receive The received satellite electrical signals continue to be transmitted to the first bearing 230 and the second bearing 240, and then, the first bearing 230 and the second bearing 240 are fixedly connected to the first bearing seat 231 and the second bearing seat 241 respectively, and a plurality of fourth screws 236 and sixth screws 246 are respectively arranged at the positions of the bearing seat mounting holes 237 and 247 of the first bearing seat 231 and the second bearing seat 241, and one end of the third feeder 113 and the fourth feeder 114 are respectively electrically connected to the fourth screw 236 and the sixth screw 246, and the other ends of the third feeder 113 and the fourth feeder 114 are electrically connected to the positive electrode 401 and the negative electrode 402 of the satellite signal processor 400 after passing through the fourth through hole 311.

[0088] Secondly, the second base 300 is fixedly connected to the relevant components. Figure 1 , Figure 8 , Fig.14 , Fig.15 As shown: at the positions of the first insulating block 232 and the second insulating block 242 on the inner wall of the shell 310 adjacent to the second base 300, a plurality of third screws 235 are respectively arranged at the positions of the vertical side end surface of the first insulating block 232 away from the inner wall of the shell 310, and the heads of the third screws 235 are located in the first cavity 238 at the lower part of the first bearing seat 231, and the plurality of third screws 235 are passed through the seventh through hole 233 on the first insulating block 232 to the fourth internal thread blind hole 313 on the side wall of the second base 300, so as to fix the first insulating block 232 with the second base 300. Similarly, a plurality of fifth screws 245 are respectively arranged at the positions of the vertical side end surface of the second insulating block 242 away from the inner wall of the shell 310, and the heads of the fifth screws 245 are located in the second cavity 248 at the lower part of the second bearing seat 241, and the plurality of fifth screws 245 are passed through the eighth through hole 243 on the second insulating block 242 to the second bearing seat 241. The second insulating block 242 is fixedly connected to the second base 300 in the sixth internal threaded blind hole 314 on the base 300; thereafter, the first bearing seat 231 and the second bearing seat 241 are horizontally arranged at the vertical side end faces of the first insulating block 232 and the second insulating block 242 away from the inner wall of the shell 310 of the second base 300: at the lower position of the first bearing seat 231, a plurality of fourth screws 236 are used to pass through the first bearing seat mounting hole 237 and then to the third internal threaded blind hole 234 on the first insulating block 232, thereby fixing one side vertical end face of the first insulating block 232 to the first bearing seat 231; similarly, at the lower position of the second bearing seat 241, a plurality of sixth screws 246 are used to pass through the second bearing seat mounting hole 247 and then to the fifth internal threaded blind hole 244 on the second insulating block 242, thereby fixing one side vertical end face of the second insulating block 242 to the second bearing seat 241.

[0089] Furthermore, the low-orbit satellite signal receiving antenna is rotated to align with the low-orbit satellite and receive the satellite signal. When it is necessary to align and receive the low-orbit satellite signal, the rotating shaft 200 is rotated manually or by other mechanical rotation methods (such as: motor-assisted mechanical rotation methods), thereby driving the rotating antenna surface 100, and the first feeder 111, the second feeder 112, the rotating shaft 200, the first base 130, and the rotating disk 140 follow the movement, because the first bearing, the first bearing seat, the second bearing, and the second bearing seat are all fixedly connected to the housing 310 of the second base 300, so no follow-up movement occurs, and then, the third feeder 113 and the fourth feeder 114 fixedly electrically connected to the satellite signal processor 400 do not follow the movement, and because the positive and negative poles of the high-frequency head 110 are electrically connected to the positive pole 401 and the negative pole 402 of the satellite signal processor 400, the antenna of the present invention realizes the reception of low-orbit satellite signals without feeder follow-up winding.

[0090] The above is the working principle of the low-orbit satellite signal receiving antenna for preventing feeder line from being entangled.

[0091] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The statement "includes an element defined by..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-orbit satellite signal receiving antenna for preventing feeder line from being wound, comprising an antenna surface (100), a high-frequency head (110), a first feeder line (111), a second feeder line (112), a third feeder line (113), a fourth feeder line (114), a pitch adjustment rod (120), a first base (130), a rotating disk (140), a rotating shaft (200), a first conical spring (210), a second conical spring (220), a first bearing (230), a second bearing (240), and a second base (300); The surface of the antenna surface (100) is in a parabolic shape, one side of the antenna surface (100) is a concave surface (101), and the other side of the antenna surface (100) is a convex surface (102); a pitch adjustment rod (120) is arranged at the central position of the convex surface (102) of the antenna surface (100); the pitch adjustment rod (120) is in a V shape; one end of the pitch adjustment rod (120) is fixedly connected to the convex surface (102) of the antenna surface (100); the other end of the pitch adjustment rod (120) is close to the concave surface (101) of the antenna surface (100); and the lower edge of the antenna surface (100) is located above the V-shaped turning position of the pitch adjustment rod (120) and does not contact the pitch adjustment rod (120); A clamping buckle (150) is provided at one end of the pitch adjustment rod (120) close to the concave surface (101) of the antenna surface (100), the clamping buckle (150) is fixedly connected to the pitch adjustment rod (120), a high-frequency head (110) is provided at the position of the clamping buckle (150), and the high-frequency head (110) is fixedly connected to the clamping buckle (150); A first base (130) is horizontally arranged below the V-shaped turning point of the pitch adjustment rod (120), and the first base (130) is semi-movably connected to the pitch adjustment rod (120); The first base (130) is in the shape of a flat ring. A rotating disk (140) is horizontally arranged below the first base (130). The rotating disk (140) is a circular flat plate. The rotating disk (140) is fixedly connected to the first base (130). A first through hole (141) is arranged at the center of the rotating disk (140). A second through hole (142) and a third through hole (143) are respectively arranged between the first through hole (141) and the edge of the rotating disk (140). A rotating shaft (200) is vertically arranged downwardly at a position directly opposite to the first through hole (141) below the rotating disk (140); the rotating shaft (200) is a cylindrical insulator; the diameter of the cross-sectional circle of the rotating shaft (200) is larger than the diameter of the first through hole (141); a first internally threaded blind hole (201) is arranged downwardly at the center position of the upper end surface of the rotating shaft (200); the nominal diameter of the first internally threaded blind hole (201) is equal to the diameter of the first through hole (141); a first screw (145) is arranged at the first through hole (141); the first screw (145) passes through the first through hole (141) from top to bottom into the first internally threaded blind hole (201); and the rotating disk (140) is fixedly connected to the rotating shaft (200) via the first screw (145); The rotating shaft (200) is axially arranged from the upper end surface, and a first groove (202) and a second groove (203) are arranged at the side cylindrical surface from top to bottom. The upper end opening of the first groove (202) is located directly below the second through hole (142) of the rotating disk (140), and the upper end opening of the second groove (203) is located directly below the third through hole (143) of the rotating shaft. The length of the second groove (203) in the vertical direction is greater than the length of the first groove (202) in the vertical direction. A first bearing (230) is arranged at the lower end tail position of the first groove (202), and the cylindrical surface of the rotating shaft (200) contacts and is fixedly connected to the inner ring of the first bearing (230). A second bearing (240) is arranged at the lower end tail position of the second groove (203), and the side cylindrical surface of the rotating shaft (200) contacts and is fixedly connected to the inner ring of the second bearing (240). A first blind hole (204) is arranged downward from the bottom surface at the tail position of the lower end of the first groove 202, and a second blind hole (205) is arranged downward from the bottom surface at the tail position of the lower end of the second groove (203). A first conical spring (210) and a second conical spring (220) are arranged at the bottom surfaces of the first blind hole (204) and the second blind hole (205), respectively. When the first conical spring (210) is in an uncompressed state, the upper end of the first conical spring (210) is higher than the side cylindrical surface of the rotating shaft (200), and the lower end surface diameter of the first conical spring (210) is equal to the diameter of the first conical spring (220). a diameter of a blind hole (204); when the first conical spring (210) is in a compressed state, the upper end surface of the first conical spring (210) contacts the inner ring of the first bearing (230); when the second conical spring (220) is in a non-compressed state, the upper end of the second conical spring (220) is higher than the side cylindrical surface of the rotating shaft (200); the lower end surface diameter of the second conical spring (220) is equal to the diameter of the second blind hole (205); when the second conical spring (220) is in a compressed state, the upper end surface of the second conical spring (220) contacts the inner ring of the second bearing (240); A first feeder (111) is arranged at the positive pole (115) position of the high-frequency head (110), one end of the first feeder (111) is electrically connected to the positive pole (115) of the high-frequency head (110), and the other end of the first feeder (111) is electrically connected to the first conical spring (210); a second feeder (112) is arranged at the negative pole (116) position of the high-frequency head (110), one end of the second feeder (112) is electrically connected to the negative pole (116) of the high-frequency head (110), and the other end of the second feeder (112) is electrically connected to the second conical spring (220); A first bearing seat (231) and a second bearing seat (241) are respectively arranged at the outer ring positions of the first bearing (230) and the second bearing (240); a third feeder (113) and a fourth feeder (114) are respectively arranged at the bottom ends of the first bearing seat (231) and the second bearing seat (241); one end of the third feeder (113) and the fourth feeder (114) are respectively electrically connected to the first bearing seat (231) and the second bearing seat (241); and the other end of the third feeder (113) and the fourth feeder (114) are respectively electrically connected to the positive electrode (401) and the negative electrode (402) of the satellite signal processor (400); The first bearing seat (231) and the second bearing seat (241) are both arranged horizontally. A first insulating block (232) and a second insulating block (242) are arranged at the bottom ends of the first bearing seat (231) and the second bearing seat (241), respectively. One end face of the first insulating block (232) is fixedly connected to the first bearing seat (231), and one end face of the second insulating block (242) is fixedly connected to the second bearing seat (241). A second base (300) is arranged at the other end faces of the first insulating block (232) and the second insulating block (242), and the other end faces of the first insulating block (232) and the second end face of the second insulating block (242) are fixedly connected to the second base (300).

2. A low-orbit satellite signal receiving antenna for preventing feeder line from winding as claimed in claim 1, characterized in that: The second base (300) comprises a shell (310) and a cover plate (320); The shell (310) is a hollow box structure with an upper end surface in the shape of a Chinese character “Yu” and a lower end surface in the shape of a closed plane. A fourth through hole (311) is provided on the vertical side end surface of the shell (310). The third feeder (113) and the fourth feeder (114) pass through the fourth through hole (311) and are respectively electrically connected to the positive electrode (401) and the negative electrode (402) of the satellite signal processor (400). A cover plate (320) is provided at a position directly above the upper end surface of the housing (310), a fifth through hole (321) is provided at a central position of the cover plate (320), the rotating shaft (200) passes through the fifth through hole (321), and the side cylindrical surface of the rotating shaft (200) does not contact the inner wall of the fifth through hole (321); A plurality of sixth through holes (322) are evenly spaced along the edge of the surface of the cover plate (320); the shell (310) is provided with a plurality of second internally threaded blind holes (312) of the same number at a position below the cover plate (320) and facing the sixth through holes (322); a plurality of second screws (323) are provided at the positions of the sixth through holes (322); the second screws (323) pass through the sixth through holes (322) on the cover plate (320) and enter the second internally threaded blind holes (312); and the cover plate (320) is fixedly connected to the shell (310) by the second screws (323); The upper end surface of the rotating shaft (200) is higher than the upper end surface of the cover plate (320) of the second base (300); The lower end surface of the rotating shaft (200) is higher than the lower surface of the inner cavity of the shell (310) of the second base (300).

3. A low-orbit satellite signal receiving antenna for preventing feeder line from winding as claimed in claim 2, characterized in that: A plurality of seventh through holes (233) and a plurality of third internally threaded blind holes (234) are arranged in parallel at a position of an end surface of one side of the first insulating block (232) close to the first bearing seat (231); the seventh through hole (233) is directly opposite to the first cavity (238) at the bottom of the first bearing (230); a plurality of fourth internally threaded blind holes (313) are arranged at a position of a side wall of the housing (310) close to the first insulating block (232) and directly opposite to the seventh through hole (233); a plurality of third screws (235) are arranged at the position of the seventh through hole (233); the third screws (235) are arranged at the position of the third through hole (233); 35) passes through the seventh through hole (233) to the fourth internally threaded blind hole (313), the first insulating block (232) is fixedly connected to the housing (310) by the third screw (235), a plurality of fourth screws (236) are arranged at the position of the bearing seat mounting hole (237) of the first bearing seat (231), the fourth screws (236) pass through the bearing seat mounting hole (237) of the first bearing seat (231) to the third internally threaded blind hole (234), and the first bearing seat (231) is fixedly connected to the first insulating block (232) by the fourth screws (236); A plurality of eighth through holes (243) and a plurality of fifth internally threaded blind holes (244) are arranged in parallel at a position of the second insulating block (242) close to the end surface of the second bearing seat (241); the eighth through hole (243) is directly opposite to the second cavity (248) at the bottom of the second bearing (240); a plurality of sixth internally threaded blind holes (314) are arranged at a position of the side wall of the housing (310) close to the second insulating block (242) and directly opposite to the eighth through hole (243); a plurality of fifth screws (245) are arranged at the position of the eighth through hole (243); the fifth screws (245) are arranged at the position of the eighth through hole (243); 5) passing through the eighth through hole (243) to the sixth internally threaded blind hole (314), the second insulating block (242) is fixedly connected to the housing (310) by the fifth screw (245), a plurality of sixth screws (246) are arranged at the position of the bearing seat mounting hole (247) of the second bearing seat (241), the sixth screws (246) pass through the bearing seat mounting hole (247) of the second bearing seat (241) to the sixth internally threaded blind hole (314), and the second bearing seat (241) is fixedly connected to the second insulating block (242) by the sixth screws (246); The third feed line (113) and the fourth feed line (114) are respectively fixedly electrically connected to the fourth screw (236) and the sixth screw (246).

4. The low-orbit satellite signal receiving antenna for preventing feeder line from winding as claimed in claim 1, characterized in that: A concave clip (180) is provided at the upper end surface of the first base (130), and a ninth through hole (181) and a tenth through hole (182) are respectively provided at the upper parts of the two vertical side surfaces of the concave clip (180) facing each other. The pitch adjustment rod (120) passes through the two side surfaces of the concave clip (180), and the lower part of one end of the pitch adjustment rod (120) close to the concave surface (101) of the antenna surface (100) and corresponding to the ninth through hole (181) and the tenth through hole (182). An eleventh through hole (121) is provided at the position of the tenth through hole (182), a first bolt (183) is provided at the position of the ninth through hole (181), the first bolt (183) passes through the ninth through hole (181), the eleventh through hole (121) and the tenth through hole (182), and reaches the first gasket (184) and the first nut (185), and the pitch adjustment rod (120) is semi-movably connected to the concave clip (180) through the first bolt (183); A twelfth through hole (186) is provided at the central position of the bottom surface of the concave clip (180), a seventh internally threaded blind hole (131) is provided at a position of the upper end surface of the first base (130) corresponding to the concave clip (180), a seventh screw (187) is provided at the position of the twelfth through hole (186), the seventh screw (187) passes through the twelfth through hole (186) and enters the seventh internally threaded blind hole (131), and the concave clip (180) is fixedly connected to the first base (130) by the seventh screw (187).

5. The low-orbit satellite signal receiving antenna for preventing feeder line from winding as claimed in claim 1, characterized in that: The clamping buckle (150) comprises a clamping seat (160) and a clamping cover (170); the clamping buckle (150) is a hollow structure; the lower part of the clamping buckle (150) is the clamping seat (160); the upper end surface of the clamping seat (160) is a plane; a semicircular first clamping groove (161) is arranged from top to bottom in the center of the upper end surface of the clamping seat (160); the radius of the first clamping groove (161) is equal to the middle horizontal radius of the tuner (110); The radius of the cross-sectional circle, both sides of the upper end of the first clamping groove (161) are ear-shaped rectangular parallelepiped steps, and the upper end faces of the steps are respectively downwardly provided with a thirteenth through hole (162) and a fourteenth through hole (163), and the lower part of the clamping seat (160) is inclinedly provided with an inverted third groove (168), and the upper end face of the third groove (168) is a plane, and the upper end face of the third groove (168) forms an obtuse angle with the vertical direction of the clamping cover (170), and in the clamping A fifteenth through hole (164) is arranged downwardly at the center of the upper end surface of the third groove (168) at the lower part of the clamping seat (160); the end of the pitch adjustment rod (120) close to the concave surface (101) of the antenna surface (100) is inserted into the third groove (168) at the lower part of the clamping seat (160); a sixteenth through hole (122) is arranged at a position of the pitch adjustment rod (120) corresponding to the fifteenth through hole (164) on the upper end surface of the third groove (168) at the lower part of the clamping seat (160); a second bolt (165), a second gasket (166) and a second nut (167) are arranged at the position of the fifteenth through hole (164); the second bolt (165) passes through the fifteenth through hole (164) and the sixteenth through hole (122) to the second gasket (166) and the second nut (167); the pitch adjustment rod (120) is fixedly connected to the clamping seat (160) through the second bolt (165); The upper part of the clamping buckle (150) is a clamping cover (170), which is arranged directly above the clamping seat (160). The shape of the clamping cover (170) is symmetrical with the upper part of the clamping seat (160). The lower end surface of the clamping cover (170) is a plane. A semicircular second clamping groove (171) is arranged from bottom to top in the center of the lower end surface of the clamping cover (170). The radius of the second clamping groove (171) is equal to the radius of the middle cross-section circle of the high-frequency head (110). The second clamping groove (171) ) has an arc length that is less than half of the circumference of the middle cross-section circle of the high-frequency head (110), both sides of the upper end of the second clamping groove (171) are ear-shaped rectangular parallelepiped steps, and the upper end faces of the steps are respectively provided with a seventeenth through hole (172) and an eighteenth through hole (173) from top to bottom, the seventeenth through hole (172) and the eighteenth through hole (173) are respectively opposite to the thirteenth through hole (162) and the fourteenth through hole (163) and have the same diameter, and a third bolt (174) is provided at the position of the seventeenth through hole (172) ), a third gasket (175), a third nut (176), a third bolt (174) passes through the seventeenth through hole (172), the thirteenth through hole (162), to the third gasket (175), the third nut (176), a fourth bolt (177), a fourth gasket (178), a fourth nut (179) are respectively arranged at the position of the eighteenth through hole (173), the fourth bolt (177) passes through the eighteenth through hole (173), the fourteenth through hole (163), to the fourth gasket (178), the fourth nut (179) Four nuts (179), the high-frequency head (110) passes through the first clamping groove (161) of the clamping seat (160) of the clamping buckle (150) and the second clamping groove (171) of the clamping cover (170), the cylindrical side surface of the high-frequency head (110) contacts the arc surface of the first clamping groove (161) and the second clamping groove (171), and the clamping cover (170) is fixedly connected to the clamping seat (160) and the high-frequency head (110) by a third bolt (174) and a fourth bolt (177).

6. The low-orbit satellite signal receiving antenna for preventing feeder line from winding as claimed in claim 1, characterized in that: The first base (130) is provided with a plurality of nineteenth through holes (132) along the circumferential direction, and the rotating disk (140) is provided with a plurality of eighth internally threaded blind holes (144) of the same number downwardly at positions corresponding to the nineteenth through holes (132) on the upper end surface, the eighth internally threaded blind holes (144) having a nominal diameter equal to the diameter of the nineteenth through holes (132), and the openings of the eighth internally threaded blind holes (144) are located directly below the nineteenth through holes (132), and a plurality of eighth screws (133) are provided at the positions of the nineteenth through holes (132) of the first base (130), and the eighth screws (133) pass through the nineteenth through holes (132) and enter the eighth internally threaded blind holes (144), and the first base (130) is fixedly connected to the rotating disk (140) through the eighth screws (133).

7. The low-orbit satellite signal receiving antenna for preventing feeder line from winding as claimed in claim 1, characterized in that: The second through hole (142) and the third through hole (143) are symmetrically distributed with the first through hole (141) as the center.

8. The low-orbit satellite signal receiving antenna for preventing feeder line from winding as claimed in claim 1, characterized in that: The first bearing (230) and the second bearing (240) are ball bearings.

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