Antenna shielding detection device

Abstract

The invention discloses an antenna shielding detection device, and relates to the technical field of satellite antenna shielding testing, the antenna shielding detection device comprises a main rotating seat erected on a satellite antenna main body, an auxiliary rotating seat is rotatably mounted in the main rotating seat, and a rotating ring is rotatably mounted in the auxiliary rotating seat; an inclined fixing rod is fixedly installed on the inner side wall of the circumference of the auxiliary rotating seat, and a supporting ring is fixedly installed at the top end of the fixing rod. According to the antenna shielding detection device, the main supporting arm can be controlled to rotate, the shielding cloth can be pulled to be completely unfolded, so that the shielding cloth completely shields the pot surface, or the rotating angle of the main supporting arm is controlled according to the test requirement, and therefore the pot surface is partially shielded.

Description

Technical Field

[0001] The invention relates to the technical field of satellite antenna shielding test, and in particular to an antenna shielding detection device. Background Art

[0002] The satellite antenna is often called a big pot. It is a metal parabola that is responsible for reflecting satellite signals to the feed and high-frequency head at the focus. The function of the satellite antenna is to collect weak signals transmitted by the satellite and remove noise as much as possible. Most antennas are usually parabolic, and some multi-focus antennas are a combination of spherical and parabolic surfaces. The satellite signal is reflected by the parabolic antenna and concentrated at its focus.

[0003] An antenna is a converter that converts guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium, or vice versa. A component used to transmit or receive electromagnetic waves in radio equipment. Engineering systems such as radio communications, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, and radio astronomy, all of which use electromagnetic waves to transmit information, rely on antennas to work. In addition, in terms of transmitting energy using electromagnetic waves, non-signal energy radiation also requires antennas. Generally, antennas are reversible, that is, the same antenna can be used as both a transmitting antenna and a receiving antenna. The basic characteristic parameters of the same antenna as a transmitter or receiver are the same.

[0004] The existing satellite antenna occlusion detection is to use an obstruction to completely cover the antenna dish surface so that the antenna cannot lock onto the satellite. After blocking for a certain period of time, the obstruction is removed and the time it takes for the satellite antenna to re-lock onto the satellite is detected. In this way, the tracking parameters of the satellite antenna can be obtained, that is, the time it takes to re-lock onto the satellite after blocking the antenna for a certain period of time.

[0005] However, in the actual test process, usually only the case where the antenna dish surface is completely blocked is tested. When the antenna dish surface is partially blocked, it is not convenient to confirm the accuracy of the dish surface blocking, which can easily reduce the accuracy of the antenna blocking test results; To this end, the present invention proposes an antenna shielding detection device to solve the above problem. Summary of the invention

[0006] The object of the present invention is to provide an antenna shielding detection device, which has the advantages of being able to control partial shielding of a satellite dish surface and ensure the accuracy of the shielding surface, thereby solving the problem that the existing antenna shielding detection device usually only tests the situation where the antenna dish surface is completely shielded. When performing a partial shielding test on the antenna dish surface, it is inconvenient to confirm the accuracy of the dish surface shielding, which easily reduces the accuracy of the antenna shielding test results.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an antenna obstruction detection device, comprising a main rotating seat mounted on a satellite antenna body, a secondary rotating seat rotatably installed in the main rotating seat, a rotating ring rotatably installed in the secondary rotating seat, a fixed rod arranged in an inclined manner fixedly installed on the circumferential inner side wall of the secondary rotating seat, a supporting ring fixedly installed on the top of the fixed rod, a fixed support arm fixedly installed between the top of the fixed rod and the top of the secondary rotating seat, a main support arm arranged in an inclined manner fixedly installed on the top of the rotating ring, secondary support arms distributed in a circular array and arranged in an inclined manner rotatably installed on the top of the secondary rotating seat, the tops of the main support arm and the secondary support arm are both rotatably installed on the circumferential side wall of the support ring, and a shielding cloth is connected between the main support arm and the adjacent secondary support arm, between two adjacent secondary support arms, and between the fixed support arm and the adjacent secondary support arm.

[0008] By adopting the above technical solution, the rotation of the rotating ring can drive the main support arm along the secondary rotating seat, the rotating ring drives the main support arm to rotate, the main support arm can pull the secondary support arm to rotate through the shielding cloth, the support ring can support the main support arm and the secondary support arm, and with the angle of circumferential rotation around the pot surface, the shielding cloth can completely cover the pot surface or partially cover the pot surface.

[0009] Preferably, the auxiliary rotating seat is provided with an auxiliary driving structure for rotating the rotating ring, and the auxiliary driving structure includes an auxiliary motor fixedly mounted on the circumferential outer wall of the auxiliary rotating seat, the auxiliary motor output shaft fixing sleeve is provided with a auxiliary gear, the circumferential side wall fixing sleeve of the rotating ring is provided with a gear ring, and the auxiliary gear extends into the auxiliary rotating seat and meshes with the gear ring.

[0010] By adopting the above technical solution, the auxiliary motor drives the auxiliary gear to rotate, the auxiliary gear drives the gear ring to rotate, the gear ring drives the rotating ring to rotate, and the rotating ring can drive the main support arm to rotate.

[0011] Preferably, a connecting block is fixedly installed at the bottom end of the main support arm, and the connecting block is fixedly installed at the top end of the rotating ring. A sliding block is fixedly installed at the bottom end of the auxiliary support arm, and a sliding groove matching the connecting block and the sliding block is opened at the top end of the rotating ring.

[0012] By adopting the above technical solution, the connecting block and the sliding block can slide in the sliding groove, so that the rotating ring can drive the connecting block to rotate, and the sliding block can drive the secondary supporting arm to rotate.

[0013] Preferably, limiting grooves are provided on both side walls inside the slide groove, and damping blocks slidably installed inside the limiting grooves are fixedly installed on both sides of the sliding block.

[0014] By adopting the above technical solution, when the sliding block slides in the sliding groove, the damping block slides in the limiting groove, so as to keep the stability of the secondary support arm. The secondary support arm can be moved only when the main support arm pushes the secondary support arm or the secondary support arm is pulled by the shielding cloth.

[0015] Preferably, a rotating ring is provided along the top of the support ring, the top of the main support arm is fixedly connected to the outer circumferential side wall of the rotating ring, the top of the auxiliary support arm is fixedly installed with a rotating block, the outer circumferential side wall of the rotating ring is provided with a rotating groove, and the rotating block is rotatably installed in the rotating groove.

[0016] By adopting the above technical solution, when the main support arm rotates, it can drive the rotating ring to rotate at the top of the support ring, and the rotating block slides in the rotating groove, which can facilitate the rotation of the auxiliary support arm.

[0017] Preferably, a rotating rod is fixedly installed on the inner edge of the bottom end of the rotating ring, and a rotating rod is rotatably installed on the bottom end of the supporting ring. A tin foil roll is fixedly sleeved on the circumferential side wall of the rotating rod, and the end of the tin foil roll is fixedly connected to the outer circumferential side wall of the rotating rod.

[0018] By adopting the above technical solution, when the rotating ring rotates, the rotating rod can be driven to rotate. When the rotating rod moves away from the rotating rod, the tinfoil of the tinfoil roll can be pulled to unfold, making it easier for the tinfoil to wrap the waveguide component, thereby improving the shielding effect.

[0019] Preferably, a reset rotation mechanism for rotating the rotating rod is provided at the bottom end of the support ring, and the reset rotation mechanism includes a rotating seat fixedly mounted on the bottom end of the support ring, the rotating rod is rotatably mounted on the bottom end of the rotating seat, and a coil spring is connected between the outer circumferential side wall of the rotating rod and the inner circumferential side wall of the rotating seat.

[0020] By adopting the above technical solution, the unfolding of the tin foil roll drives the rotating rod at the bottom of the rotating seat to rotate, and drives the coil spring to compress. When the detection device is retracted, the coil spring pulls the rotating rod to rotate, and the rotating rod drives the tin foil roll to rewind the tin foil.

[0021] Preferably, the satellite antenna body includes a support placed on the ground, a pot surface is provided on the top of the support, a waveguide component is fixedly installed on the top of the pot surface, the tin foil roll and the waveguide component are located in the same horizontal plane, and a slot is provided at the bottom end of the main rotating seat, and the slot matches the edge of the top of the pot surface.

[0022] By adopting the above technical solution, the slot of the main rotating seat can clamp the pot surface of the satellite antenna body, which is convenient for installing the detection device and maintaining the stability of the main rotating seat. At the same time, during the rotation of the pot surface, the detection device can be kept rotating with the pot surface, thereby facilitating the detection of the satellite antenna body.

[0023] Preferably, the main rotating seat is provided with a main driving structure for the rotation of the auxiliary rotating seat, and the main driving structure includes a main motor fixedly mounted on the bottom end of the main rotating seat, and the output shaft fixing sleeve of the main motor is provided with a main gear, and the bottom end of the auxiliary rotating seat is fixedly mounted with a gear block in a ring array, and the main gear extends to the top end of the auxiliary rotating seat and meshes with the gear block.

[0024] By adopting the above technical solution, the main motor drives the main gear to rotate, and the main gear drives the auxiliary rotating seat to rotate by engaging with the gear block. The auxiliary rotating seat can drive the shielding cloth and tin foil to rotate, so that when the pot surface is partially shielded, the shielding surface can be rotated to perform multi-angle testing, thereby improving the accuracy of the test results.

[0025] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets a secondary motor to drive the rotating ring to rotate, and the rotating ring drives the main support arm to rotate. The main support arm can pull the secondary support arm to rotate through the shielding cloth. The main support arm can pull the shielding cloth to fully unfold, so that the shielding cloth completely shields the pot surface, or the rotation angle of the main support arm is controlled according to the test needs, so as to partially shield the pot surface; 2. The present invention drives the rotating ring to rotate by setting a main support arm, and the rotating ring can drive the rotating rod to rotate synchronously, pulling the tin foil of the tin foil roll to unfold, so that the tin foil wraps the waveguide component, so that the area blocked by the pot surface corresponds to the area blocked by the waveguide component, so as to improve the shielding effect; 3. The present invention provides a reset rotation mechanism. When the tin foil of the tin foil roll is unrolled, the rotating rod is driven to rotate and compress the coil spring. When the detection device is retracted, the coil spring pulls the rotating rod to rotate, and the rotating rod drives the tin foil roll to rewind the tin foil. 4. The present invention sets a main motor to drive the auxiliary rotating seat to rotate, and the auxiliary rotating seat drives the entire shielding cloth and the tin foil to rotate, so that when partially shielding the pot surface, the pot surface and the waveguide component are shielded at different angles for testing, which is convenient for improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the present invention; Figure 3 It is a front cross-sectional structural schematic diagram of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 6 For the present invention Figure 3The enlarged structural diagram at C in the middle; Figure 7 It is a schematic diagram of the three-dimensional structure of the support ring of the present invention; Figure 8 It is a front view cross-sectional structural schematic diagram of the reset rotation mechanism of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the present invention partially shielding the main body of the satellite antenna.

[0027] In the figure: 1. Satellite antenna body; 101. Support; 102. Dish surface; 103. Waveguide assembly; 2. Main rotating seat; 201. Main motor; 202. Main gear; 203. Gear block; 204. Slot; 3. Auxiliary rotating seat; 301. Auxiliary motor; 302. Auxiliary gear; 303. Gear ring; 4. Rotating ring; 401. Connecting block; 402. Sliding block; 403. Slide groove; 404. Limiting groove; 405. Damping block; 5. Fixed rod; 6. Support ring; 7. Main support arm; 8. Auxiliary support arm; 801. Rotating groove; 802. Rotating block; 9. Fixed support arm; 10. Shielding cloth; 11. Rotating ring; 12. Rotating rod; 13. Rotating rod; 14. Tin foil roll; 15. Rotating seat; 16. Coil spring. DETAILED DESCRIPTION

[0028] 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. Example

[0029] See also Figures 1 to 5 The present invention provides a technical solution: an antenna shielding detection device, comprising a main rotating seat 2 mounted on a satellite antenna body 1, the satellite antenna body 1 comprising a support 101 placed on the ground, a pot surface 102 is provided on the top of the support 101, a waveguide component 103 is fixedly installed on the top of the pot surface 102, a card slot 204 is provided at the bottom end of the main rotating seat 2, the card slot 204 matches the top edge of the pot surface 102, the card slot 204 of the main rotating seat 2 can clamp the pot surface 102 of the satellite antenna body 1, so as to facilitate the installation of the detection device and the stability of the main rotating seat 2, and at the same time, the detection device can be kept rotating with the pot surface 102 during the rotation of the pot surface 102, so as to facilitate the detection of the satellite antenna body 1.

[0030] A secondary rotating seat 3 is rotatably installed in the main rotating seat 2, and a rotating ring 4 is rotatably installed in the secondary rotating seat 3. The secondary rotating seat 3 is provided with a secondary driving structure for rotating the rotating ring 4. The secondary driving structure includes a secondary motor 301 fixedly installed on the circumferential outer wall of the secondary rotating seat 3, and the output shaft fixing sleeve of the secondary motor 301 is provided with a secondary gear 302. The circumferential side wall fixing sleeve of the rotating ring 4 is provided with a gear ring 303. The secondary gear 302 extends into the secondary rotating seat 3 and meshes with the gear ring 303.

[0031] A slanted fixing rod 5 is fixedly installed on the circumferential inner side wall of the auxiliary rotating seat 3, a supporting ring 6 is fixedly installed on the top of the fixing rod 5, a fixed supporting arm 9 is fixedly installed between the top of the fixing rod 5 and the top of the auxiliary rotating seat 3, a slanted main supporting arm 7 is fixedly installed on the top of the rotating ring 4, a connecting block 401 is fixedly installed on the bottom end of the main supporting arm 7, and the connecting block 401 is fixedly installed on the top of the rotating ring 4.

[0032] A secondary supporting arm 8 distributed in a circular array and inclined is rotatably installed on the top of the secondary rotating seat 3, and a sliding block 402 is fixedly installed on the bottom end of the secondary supporting arm 8. A sliding groove 403 matching the connecting block 401 and the sliding block 402 is provided on the top of the rotating ring 4, and limiting grooves 404 are provided on the two side walls inside the sliding groove 403. Damping blocks 405 slidably installed inside the limiting groove 404 are fixedly installed on both sides of the sliding block 402. When the sliding block 402 slides in the sliding groove 403, the damping block 405 slides in the limiting groove 404, which can keep the secondary supporting arm 8 stable. The secondary supporting arm 8 can only be moved when the main supporting arm 7 pushes the secondary supporting arm 8 or pulls the secondary supporting arm 8 through the shielding cloth 10.

[0033] The top ends of the main support arm 7 and the auxiliary support arm 8 are rotatably mounted on the circumferential side wall of the support ring 6. The support ring 6 can support the main support arm 7 and the auxiliary support arm 8. Shielding cloth 10 is connected between the main support arm 7 and the adjacent auxiliary support arm 8, between two adjacent auxiliary support arms 8, and between the fixed support arm 9 and the adjacent auxiliary support arm 8. The material of the shielding cloth 10 is conductive cloth, which can effectively shield electromagnetic waves.

[0034] The auxiliary motor 301 drives the auxiliary gear 302 to rotate, the auxiliary gear 302 drives the gear ring 303 to rotate, the gear ring 303 drives the rotating ring 4 to rotate, and the rotating ring 4 drives the main support arm 7 to rotate through the connecting block 401. The main support arm 7 can pull the auxiliary support arm 8 to rotate through the shielding cloth 10. The top ends of the main support arm 7 and the auxiliary support arm 8 rotate on the circumferential side wall of the support ring 6 to support the main support arm 7 and the auxiliary support arm 8. The rotation distance of the main support arm 7 can be rotated from one side of the fixed support arm 9 to the other side of the fixed support arm 9, so that the shielding cloth 10 can completely cover the pot surface 102, or the rotation angle of the main support arm 7 can be controlled according to the test needs, so as to partially cover the pot surface 102. Example

[0035] See also Figures 6 to 8 The difference between this embodiment and the first embodiment is that a tin foil roll 14 for shielding the waveguide component 103 is provided at the bottom end of the support ring 6. In this embodiment, a rotating ring 11 is rotatably sleeved along the top edge of the support ring 6, the top of the main support arm 7 is fixedly connected to the outer circumferential side wall of the rotating ring 11, and a rotating block 802 is fixedly installed on the top of the auxiliary support arm 8. A rotating groove 801 is provided on the outer circumferential side wall of the rotating ring 11, and the rotating block 802 is rotatably installed in the rotating groove 801. The rotating block 802 slides in the rotating groove 801, which can facilitate the rotation of the auxiliary support arm 8.

[0036] A rotating rod 12 is fixedly installed on the inner edge of the bottom end of the rotating ring 11, and a rotating rod 13 is rotatably installed on the bottom end of the supporting ring 6. A tin foil roll 14 is fixedly sleeved on the circumferential side wall of the rotating rod 13. The end of the tin foil roll 14 is fixedly connected to the outer circumferential side wall of the rotating rod 12. The tin foil roll 14 and the waveguide assembly 103 are located in the same horizontal plane. A reset rotating mechanism for rotating the rotating rod 13 is provided at the bottom end of the supporting ring 6. The reset rotating mechanism includes a rotating seat 15 fixedly installed at the bottom end of the supporting ring 6. The rotating rod 13 is rotatably installed at the bottom end of the rotating seat 15. A coil spring 16 is connected between the outer circumferential side wall of the rotating rod 13 and the inner circumferential side wall of the rotating seat 15.

[0037] When the main support arm 7 rotates, it can drive the rotating ring 11 to rotate at the top of the support ring 6, and the rotating ring 11 can drive the rotating rod 12 to rotate. The rotating rod 12 is away from the rotating rod 13, and the tin foil of the tin foil roll 14 can be pulled to unfold, so that the tin foil wraps the waveguide component 103, so that the area blocked by the pot surface 102 corresponds to the area blocked by the waveguide component 103, so as to improve the shielding effect. The unfolding of the tin foil of the tin foil roll 14 drives the rotating rod 13 to rotate at the bottom of the rotating seat 15, and drives the coil spring 16 to compress. When the detection device is retracted, the coil spring 16 pulls the rotating rod 13 to rotate, and the rotating rod 13 drives the tin foil roll 14 to rewind the tin foil. Example

[0038] See also Figure 2 and Figure 4 The difference between this embodiment and the first and second embodiments is that the main rotating seat 2 is provided with a main driving structure. In this embodiment, the main rotating seat 2 is provided with a main driving structure for rotating the auxiliary rotating seat 3. The main driving structure includes a main motor 201 fixedly installed at the bottom end of the main rotating seat 2. The output shaft fixed sleeve of the main motor 201 is provided with a main gear 202. The bottom end of the auxiliary rotating seat 3 is fixedly installed with a tooth block 203 in a ring array. The main gear 202 extends to the top of the auxiliary rotating seat 3 and meshes with the tooth block 203.

[0039] The main motor 201 drives the main gear 202 to rotate, and the main gear 202 drives the auxiliary rotating seat 3 to rotate by engaging with the tooth block 203. The auxiliary rotating seat 3 drives the shielding cloth 10 as a whole and the tin foil to rotate around the pot surface 102 and the waveguide component 103.

[0040] How it works: See Fig. 9 The auxiliary motor 301 drives the auxiliary gear 302 to rotate, the auxiliary gear 302 drives the gear ring 303 to rotate, the gear ring 303 drives the rotating ring 4 to rotate, and the rotating ring 4 drives the main support arm 7 to rotate through the connecting block 401, and the main support arm 7 can pull the auxiliary support arm 8 to rotate through the shielding cloth 10, and the top ends of the main support arm 7 and the auxiliary support arm 8 rotate on the circumferential side wall of the support ring 6, which can support the main support arm 7 and the auxiliary support arm 8, and when the rotation distance of the main support arm 7 can be rotated from one side of the fixed support arm 9 to the other side of the fixed support arm 9, the shielding cloth 10 can completely cover the pot surface 102, and when the rotation angle of the main support arm 7 is controlled, the pot surface 102 is partially shielded.

[0041] When the main support arm 7 rotates, it can drive the rotating ring 11 to rotate at the top of the support ring 6, and the rotating ring 11 can drive the rotating rod 12 to rotate. The rotating rod 12 and the main support arm 7 rotate synchronously away from the rotating rod 13, which can pull the tin foil of the tin foil roll 14 to unfold, so that the tin foil wraps the waveguide component 103, so that the area blocked by the pot surface 102 corresponds to the area blocked by the waveguide component 103, so as to improve the shielding effect. The main motor 201 drives the main gear 202 to rotate, and the main gear 202 drives the auxiliary rotating seat 3 to rotate by engaging with the tooth block 203. The auxiliary rotating seat 3 drives the shielding cloth as a whole 10 and the tin foil to rotate, so that when the pot surface 102 is partially blocked, the pot surface 102 and the waveguide component 103 are blocked at different angles for testing, so as to improve the accuracy of the test results.

[0042] 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. An antenna shielding detection device, comprising a main rotating seat (2) mounted on a satellite antenna body (1), characterized in that: A secondary rotating seat (3) is rotatably mounted in the main rotating seat (2), a rotating ring (4) is rotatably mounted in the secondary rotating seat (3), a fixed rod (5) arranged in an inclined manner is fixedly mounted on the circumferential inner side wall of the secondary rotating seat (3), a support ring (6) is fixedly mounted on the top of the fixed rod (5), a fixed support arm (9) is fixedly mounted between the top of the fixed rod (5) and the top of the secondary rotating seat (3), a main support arm (7) arranged in an inclined manner is fixedly mounted on the top of the rotating ring (4), and secondary support arms (8) distributed in a circular array and arranged in an inclined manner are rotatably mounted on the top of the secondary rotating seat (3), the tops of the main support arms (7) and the secondary support arms (8) are both rotatably mounted on the circumferential side wall of the support ring (6), and a shielding cloth (10) is connected between the main support arm (7) and the adjacent secondary support arm (8), between two adjacent secondary support arms (8), and between the fixed support arm (9) and the adjacent secondary support arm (8).

2. The antenna shielding detection device according to claim 1, characterized in that: The auxiliary rotating seat (3) is provided with an auxiliary driving structure for rotating the rotating ring (4), the auxiliary driving structure comprising an auxiliary motor (301) fixedly mounted on the circumferential outer wall of the auxiliary rotating seat (3), the auxiliary motor (301) having an output shaft fixing sleeve provided with an auxiliary gear (302), the circumferential side wall fixing sleeve of the rotating ring (4) having a gear ring (303), and the auxiliary gear (302) extending into the auxiliary rotating seat (3) and meshing with the gear ring (303).

3. The antenna shielding detection device according to claim 1, characterized in that: A connecting block (401) is fixedly mounted on the bottom end of the main supporting arm (7), and the connecting block (401) is fixedly mounted on the top end of the rotating ring (4). A sliding block (402) is fixedly mounted on the bottom end of the secondary supporting arm (8), and a sliding groove (403) matching the connecting block (401) and the sliding block (402) is provided on the top end of the rotating ring (4).

4. The antenna shielding detection device according to claim 3, characterized in that: Limiting grooves (404) are provided on both side walls inside the sliding groove (403), and damping blocks (405) are fixedly mounted on both sides of the sliding block (402) and are slidably mounted inside the limiting grooves (404).

5. The antenna shielding detection device according to claim 3, characterized in that: A rotating ring (11) is rotatably sleeved on the top edge of the support ring (6); the top of the main support arm (7) is fixedly connected to the outer circumferential side wall of the rotating ring (11); a rotating block (802) is fixedly mounted on the top of the auxiliary support arm (8); a rotating groove (801) is formed on the outer circumferential side wall of the rotating ring (11); and the rotating block (802) is rotatably mounted in the rotating groove (801).

6. The antenna shielding detection device according to claim 5, characterized in that: A rotating rod (12) is fixedly mounted on the inner edge of the bottom end of the rotating ring (11), a rotating rod (13) is rotatably mounted on the bottom end of the supporting ring (6), a tin foil roll (14) is fixedly sleeved on the circumferential side wall of the rotating rod (13), and the end of the tin foil roll (14) is fixedly connected to the outer circumferential side wall of the rotating rod (12).

7. The antenna shielding detection device according to claim 5, characterized in that: A reset rotation mechanism for rotating the rotating rod (13) is provided at the bottom end of the support ring (6), the reset rotation mechanism comprising a rotating seat (15) fixedly mounted at the bottom end of the support ring (6), the rotating rod (13) being rotatably mounted at the bottom end of the rotating seat (15), and a coil spring (16) being connected between the outer circumferential side wall of the rotating rod (13) and the inner circumferential side wall of the rotating seat (15).

8. The antenna shielding detection device according to claim 6, characterized in that: The satellite antenna body (1) comprises a support (101) placed on the ground, a pot surface (102) is provided at the top of the support (101), a waveguide component (103) is fixedly mounted at the top of the pot surface (102), the tin foil roll (14) and the waveguide component (103) are located on the same horizontal plane, and a slot (204) is provided at the bottom end of the main rotating seat (2), the slot (204) matches the top edge of the pot surface (102).

9. The antenna shielding detection device according to claim 1, characterized in that: The main rotating seat (2) is provided with a main driving structure for rotating the auxiliary rotating seat (3), the main driving structure comprising a main motor (201) fixedly mounted on the bottom end of the main rotating seat (2), the output shaft fixing sleeve of the main motor (201) being provided with a main gear (202), the bottom end of the auxiliary rotating seat (3) being fixedly mounted with tooth blocks (203) in a ring array, the main gear (202) extending to the top end of the auxiliary rotating seat (3) and meshing with the tooth blocks (203).

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