Satellite-borne antenna locking and releasing device

Abstract

The utility model discloses a locking and releasing device for a satellite-borne antenna, relates to the technical field of satellite-borne antennas, solves the problem that the load of a satellite platform is easily damaged due to impact generated by adopting an explosion mode traditionally, and comprises a platform deck, the top of the platform deck is fixedly connected with a frame, and the inner wall of the frame is slidably connected with a mounting plate. An antenna assembly is arranged at the top of the mounting plate and comprises an antenna frame, the bottom of the antenna frame is fixedly connected with the mounting plate, a first fixing frame is fixedly connected to the bottom of the inner wall of the frame, a first connecting rod is slidably connected into the first fixing frame, and the top of the first connecting rod is fixedly connected with the bottom of the mounting plate. A first spring sleeves the outer side of the first connecting rod and is located between the mounting plate and the first fixing frame, and a second connecting rod is inserted into the bottom end of the first connecting rod. According to the utility model, the antenna assembly can be locked and released through the first connecting rod, the first spring and the releasing assembly, the structure is simple, and the locking and releasing work is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the field of satellite-borne antennas, in particular to a locking and releasing device for satellite-borne antennas. Background Art

[0002] The satellite antenna is the input and output device of satellite signals. It is an important part of the satellite system. Satellite communication is achieved by transmitting electromagnetic waves between the satellite antenna and the earth station antenna to achieve information transmission. The satellite antenna is generally installed outside the satellite platform and will be affected by vibration, noise, etc. during launch. Therefore, the satellite antenna needs to be locked on the satellite platform during launch and released when the satellite enters orbit.

[0003] Traditional locking and releasing devices usually adopt the form of pyrotechnics, among which explosive bolts are the main ones. The explosive bolts are filled with gunpowder. When receiving the unlocking command, they are detonated by connecting a large current to them, thereby cutting off the locking rod and releasing the antenna. However, the use of the explosion form will produce impact and easily damage the load of the satellite platform. Therefore, a locking and releasing device for satellite-borne antennas is now proposed. Utility Model Content

[0004] In order to improve the problem that the conventional explosion method may cause impact and easily damage the load of the satellite platform, the utility model provides a locking and releasing device for a satellite-borne antenna.

[0005] The utility model provides a satellite-borne antenna locking and releasing device, which adopts the following technical solutions:

[0006] A satellite antenna locking and releasing device comprises a platform deck, an antenna assembly and a release assembly, wherein the top of the platform deck is fixedly connected to a frame, a mounting plate is slidably connected to the inner wall of the frame, the antenna assembly is arranged on the top of the mounting plate, the antenna assembly comprises an antenna frame, the bottom of the antenna frame is fixedly connected to the mounting plate, a first fixing frame is fixedly connected to the bottom of the inner wall of the frame, a first connecting rod is slidably connected inside the first fixing frame, the top of the first connecting rod is fixedly connected to the bottom of the mounting plate, a first spring is sleeved on the outside of the first connecting rod and located between the mounting plate and the first fixing frame, a second connecting rod is inserted into the bottom end of the first connecting rod, and the release assembly is arranged inside the frame and is used to drive the movement of the second connecting rod.

[0007] By adopting the above technical solution, the second connecting rod is inserted into the inside of the first connecting rod to better fix the first connecting rod, so that the antenna assembly on the mounting plate can be better locked inside the frame. When the release assembly drives the second connecting rod to move to the right and separate from the first connecting rod, the mounting plate can be pushed upward under the action of the first spring. By moving the mounting plate upward, the antenna frame can be better driven to move upward to the outside of the frame, thereby completing the release of the antenna frame. The structure is simple, and the release of the antenna frame is convenient and reliable.

[0008] Optionally, the release assembly includes a second fixed frame, a first movable plate, a second spring, a third fixed frame, the second movable plate, a positioning rod, a third spring and two electromagnets, the second fixed frame is fixedly connected to the inner wall of the frame, the first movable plate is slidably connected to the inside of the second fixed frame, the second connecting rod passes through the inside of the second fixed frame and is fixedly connected to the first movable plate, the second spring is sleeved on the outside of the second connecting rod and is located inside the second fixed frame, the third fixed frame is fixedly connected to the top of the second fixed frame, the second movable plate is slidably connected to the inside of the third fixed frame, the positioning rod is fixedly connected to the bottom of the second movable plate, and the bottom of the positioning rod passes through the interiors of the third fixed frame and the second fixed frame in turn and is plugged into the first movable plate, the third spring is sleeved on the outside of the positioning rod and is located inside the third fixed frame, the two electromagnets are fixedly connected to the bottom of the inner wall of the third fixed frame and are located at the bottom of the second movable plate, and the second movable plate is made of iron.

[0009] By adopting the above technical solution, after the electromagnet is powered off, the second movable plate is pushed to move upward under the action of the third spring. When the second movable plate moves upward, it can better drive the positioning rod to move upward and separate from the first movable plate. Then, under the action of the second spring, the first movable plate can be better pushed to move to the right. The rightward movement of the second connecting rod can be realized by moving the first movable plate. The second connecting rod moves to the right and separates from the first connecting rod, so that the subsequent release of the antenna assembly can be carried out.

[0010] Optionally, the antenna assembly also includes four antenna ears, four third connecting rods, a third movable plate and a fourth spring, the four antenna ears are equidistantly and symmetrically connected to the top of the antenna frame, the third movable plate is slidably connected to the outside of the antenna frame, the four third connecting rods are equidistantly and symmetrically connected to the top of the third movable plate, and the ends of the four third connecting rods away from the third movable plate are all rotationally connected to the corresponding antenna ears, and the fourth spring is sleeved on the outside of the antenna frame and is located below the third movable plate.

[0011] By adopting the above technical solution, the antenna frame moves upward while driving the antenna ear to move upward. When the antenna ear moves upward to the top of the frame and separates from the inner wall of the frame, the third movable plate can be pushed to move upward under the action of the fourth spring. When the third movable plate moves, the antenna ear can be better pushed to flip and unfold under the action of the third connecting rod, so as to facilitate the normal operation of the antenna assembly.

[0012] Optionally, a slot for cooperating with the second connecting rod is provided inside the first connecting rod, and a positioning groove for cooperating with the positioning rod is provided inside the first movable plate.

[0013] By adopting the above technical solution, the second connecting rod is inserted into the inside of the slot to better complete the fixing operation of the second connecting rod to the first connecting rod, and the opened positioning groove can be connected with the positioning rod to better fix the first movable plate.

[0014] Optionally, both of the two electromagnets are electrically connected to an external control device.

[0015] By adopting the above technical solution, operating the external control device can better control the operating state of the electromagnet, so as to better control the release component.

[0016] Optionally, a positioning plate for limiting the third movable plate is fixedly connected to the outer side of the antenna frame and located above the third movable plate.

[0017] By adopting the above technical solution, when the third movable plate moves upward under the action of the fourth spring and fits with the bottom of the positioning plate, the third movable plate can be better limited to ensure the normal rotation and deployment of the antenna ear.

[0018] Optionally, the bottom of the first connecting rod is fixedly connected to a limiting plate.

[0019] By adopting the above technical solution, the limiting plate is arranged to fit the top of the first fixing frame, so as to better limit the moving distance of the first connecting rod.

[0020] Optionally, one end of each of the four antenna ears away from the rotational connection is slidably connected to the inner wall of the frame.

[0021] By adopting the above technical solution, one end of the antenna ear close to the inner wall of the frame is slidably connected to the frame, which can facilitate the upward movement of the mounting plate to push the antenna frame to the outside of the frame.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. The utility model can better lock the antenna assembly to the inside of the frame by setting the first connecting rod and the release assembly, and the locking work is stable and reliable. At the same time, the first connecting rod, the first spring and the release assembly can complete the release work of the antenna assembly, and the structure is simple and the release work is convenient;

[0024] 2. The utility model can realize the automatic flipping and unfolding of the antenna ear by means of the third movable plate, the fourth spring and the third connecting rod, which is beneficial to the normal operation of the antenna assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0026] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model.

[0027] Figure 3 The utility model Figure 2 Enlarged structural diagram at A in the middle.

[0028] Figure 4 The utility model Figure 2 Enlarged structural diagram at B in the middle.

[0029] Description of reference numerals:

[0030] 1. Platform deck; 2. Frame; 3. Mounting plate; 4. Antenna mount; 5. First fixed frame; 6. First connecting rod; 7. First spring; 8. Second fixed frame; 9. First movable plate; 10. Second connecting rod; 11. Second spring; 12. Third fixed frame; 13. Second movable plate; 14. Positioning rod; 15. Third spring; 16. Electromagnet; 17. Antenna support ear; 18. Third connecting rod; 19. Third movable plate; 20. Fourth spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] Please refer to Figure 2As shown in Fig. 3, a locking and releasing device for a satellite antenna includes a platform deck 1 and an antenna assembly, wherein a frame 2 is fixedly connected to the top of the platform deck 1, a mounting plate 3 is slidably connected to the inner wall of the frame 2, and the antenna assembly is mounted on the top of the mounting plate 3. The antenna assembly includes an antenna frame 4, and the bottom of the antenna frame 4 is fixedly connected to the mounting plate 3. In addition, a first fixing frame 5 is fixedly connected to the bottom of the inner wall of the frame 2, a first connecting rod 6 is slidably connected inside the first fixing frame 5, the top of the first connecting rod 6 is fixedly connected to the bottom of the mounting plate 3, a first spring 7 is sleeved on the outside of the first connecting rod 6 and between the mounting plate 3 and the first fixing frame 5, a second connecting rod 10 is inserted inside the bottom end of the first connecting rod 6, and a release assembly for driving the second connecting rod 10 to move is provided inside the frame 2.

[0033] More specifically, the second connecting rod 10 is inserted into the inside of the first connecting rod 6 to better fix the first connecting rod 6, so that the antenna assembly on the mounting plate 3 can be better locked inside the frame 2. When the release assembly drives the second connecting rod 10 to move to the right and separate from the first connecting rod 6, the mounting plate 3 can be pushed upward under the action of the first spring 7. By moving the mounting plate 3 upward, the antenna frame 4 can be better driven to move upward to the outside of the frame 2, and then the release work of the antenna frame 4 can be completed. The structure is simple, and the release work of the antenna frame 4 is convenient and reliable.

[0034] 2 and 3, the release assembly includes a second fixed frame 8, a first movable plate 9, a second spring 11, a third fixed frame 12, a second movable plate 13, a positioning rod 14, a third spring 15 and two electromagnets 16. The second fixed frame 8 is fixedly connected to the inner wall of the frame 2, the first movable plate 9 is slidably connected to the inside of the second fixed frame 8, the second connecting rod 10 passes through the inside of the second fixed frame 8 and is fixedly connected to the first movable plate 9, the second spring 11 is sleeved on the outside of the second connecting rod 10 and is located inside the second fixed frame 8, the third fixed frame 12 is fixedly connected to the top of the second fixed frame 8, the second movable plate 13 is slidably connected to the inside of the third fixed frame 12, the positioning rod 14 is fixedly connected to the bottom of the second movable plate 13, and the bottom of the positioning rod 14 sequentially passes through the inside of the third fixed frame 12 and the second fixed frame 8 and is plugged into the first movable plate 9, the third spring 15 is sleeved on the outside of the positioning rod 14 and is located inside the third fixed frame 12, the two electromagnets 16 are fixedly connected to the bottom of the inner wall of the third fixed frame 12 and are located at the bottom of the second movable plate 13, and the second movable plate 13 is made of iron.

[0035] More specifically, after the electromagnet 16 is powered off, the third spring 15 pushes the second movable plate 13 to move upward. When the second movable plate 13 moves upward, it can better drive the positioning rod 14 to move upward and separate from the first movable plate 9. Then, under the action of the second spring 11, the first movable plate 9 can be better pushed to move to the right. The rightward movement of the second connecting rod 10 can be realized by moving the first movable plate 9. When the second connecting rod 10 moves to the right and separates from the first connecting rod 6, the subsequent release of the antenna assembly can be carried out.

[0036] Please refer to Figure 1 and Figure 4 The antenna assembly also includes four antenna ears 17, four third connecting rods 18, a third movable plate 19 and a fourth spring 20. The four antenna ears 17 are equidistantly and symmetrically rotatably connected to the top of the antenna frame 4, the third movable plate 19 is slidably connected to the outside of the antenna frame 4, the four third connecting rods 18 are equidistantly and symmetrically rotatably connected to the top of the third movable plate 19, and the ends of the four third connecting rods 18 away from the third movable plate 19 are all rotatably connected to the corresponding antenna ears 17, and the fourth spring 20 is sleeved on the outside of the antenna frame 4 and is located below the third movable plate 19.

[0037] More specifically, when the antenna frame 4 moves upward, it drives the antenna support ear 17 to move upward. When the antenna support ear 17 moves upward to the top of the frame 2 and separates from the inner wall of the frame 2, the third movable plate 19 can be pushed to move upward under the action of the fourth spring 20. When the third movable plate 19 moves, it can better push the antenna support ear 17 to flip and unfold under the action of the third connecting rod 18, so as to facilitate the normal operation of the antenna assembly.

[0038] Reference Figure 2 and Figure 3 The first connecting rod 6 has a slot for use with the second connecting rod 10, and the second connecting rod 10 is inserted into the slot to better complete the fixing operation of the second connecting rod 10 to the first connecting rod 6. The first movable plate 9 has a positioning slot for use with the positioning rod 14. More specifically, the positioning slot can be connected with the positioning rod 14 to better fix the first movable plate 9.

[0039] Both electromagnets 16 are electrically connected to an external control device. More specifically, operating the external control device can better control the operating state of the electromagnet 16, so as to better control the release component.

[0040] Please refer to Figure 2 A positioning plate for limiting the third movable plate 19 is fixedly connected to the outside of the antenna frame 4 and located above the third movable plate 19. More specifically, when the third movable plate 19 moves upward under the action of the fourth spring 20 and fits with the bottom of the positioning plate, the third movable plate 19 can be better limited to ensure the normal rotation and deployment of the antenna ear 17.

[0041] Please refer to Figure 2 The bottom of the first connecting rod 6 is fixedly connected with a limiting plate. More specifically, the limiting plate is fitted with the top of the first fixing frame 5, which can better limit the moving distance of the first connecting rod 6.

[0042] The ends of the four antenna ears 17 away from the rotation connection are all slidably connected to the inner wall of the frame 2. More specifically, the ends of the antenna ears 17 close to the inner wall of the frame 2 are slidably connected to the frame 2, which can facilitate the upward movement of the mounting plate 3 to push the antenna frame 4 to move to the outside of the frame 2.

[0043] The implementation principle of the utility model is:

[0044] When it is necessary to release the antenna assembly, the control electromagnet 16 is powered off and the second movable plate 13 is pushed upward under the action of the third spring 15. While the second movable plate 13 moves upward, it can better drive the positioning rod 14 to move upward and separate from the first movable plate 9, and then under the action of the second spring 11, the first movable plate 9 can be better pushed to move to the right. The right movement of the second connecting rod 10 can be realized by moving the first movable plate 9. The second connecting rod 10 moves to the right and separates from the first connecting rod 6. Under the action of the first spring 7, the mounting plate 3 can be pushed upward. By moving the mounting plate 3 upward, the antenna frame 4 can be better driven to move upward to the outside of the frame 2, and then the release of the antenna frame 4 can be completed. The structure is simple, and the release of the antenna frame 4 is convenient and reliable.

[0045] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A locking and releasing device for a satellite-borne antenna, comprising a platform deck (1), an antenna assembly and a release assembly, characterized in that: The top of the platform deck (1) is fixedly connected to a frame (2), the inner wall of the frame (2) is slidably connected to a mounting plate (3), the antenna assembly is arranged on the top of the mounting plate (3), the antenna assembly comprises an antenna frame (4), the bottom of the antenna frame (4) is fixedly connected to the mounting plate (3), the bottom of the inner wall of the frame (2) is fixedly connected to a first fixing frame (5), the inside of the first fixing frame (5) is slidably connected to a first connecting rod (6), the top of the first connecting rod (6) is fixedly connected to the bottom of the mounting plate (3), a first spring (7) is sleeved on the outside of the first connecting rod (6) and located between the mounting plate (3) and the first fixing frame (5), a second connecting rod (10) is inserted into the bottom end of the first connecting rod (6), and the release assembly is arranged inside the frame (2) and is used to drive the movement of the second connecting rod (10).

2. The locking and releasing device for a satellite-borne antenna according to claim 1, characterized in that: The release assembly comprises a second fixed frame (8), a first movable plate (9), a second spring (11), a third fixed frame (12), a second movable plate (13), a positioning rod (14), a third spring (15) and two electromagnets (16); the second fixed frame (8) is fixedly connected to the inner wall of the frame (2); the first movable plate (9) is slidably connected to the inside of the second fixed frame (8); the second connecting rod (10) passes through the inside of the second fixed frame (8) and is fixedly connected to the first movable plate (9); the second spring (11) is sleeved on the outside of the second connecting rod (10) and is located inside the second fixed frame (8); the third fixed frame (12) is fixedly connected to the inside of the second movable plate (9); The second movable plate (13) is connected to the top of the second fixed frame (8), and the second movable plate (13) is slidably connected to the inside of the third fixed frame (12). The positioning rod (14) is fixedly connected to the bottom of the second movable plate (13), and the bottom of the positioning rod (14) sequentially passes through the inside of the third fixed frame (12) and the second fixed frame (8) and is plugged into the first movable plate (9). The third spring (15) is sleeved on the outside of the positioning rod (14) and is located inside the third fixed frame (12). The two electromagnets (16) are fixedly connected to the bottom of the inner wall of the third fixed frame (12) and are located at the bottom of the second movable plate (13). The second movable plate (13) is made of iron.

3. The locking and releasing device for a satellite-borne antenna according to claim 2, characterized in that: The antenna assembly further comprises four antenna ears (17), four third connecting rods (18), a third movable plate (19) and a fourth spring (20); the four antenna ears (17) are symmetrically rotatably connected to the top of the antenna frame (4) at equal distances; the third movable plate (19) is slidably connected to the outside of the antenna frame (4); the four third connecting rods (18) are symmetrically rotatably connected to the top of the third movable plate (19) at equal distances; and one end of the four third connecting rods (18) away from the third movable plate (19) is rotatably connected to the corresponding antenna ears (17); and the fourth spring (20) is sleeved on the outside of the antenna frame (4) and is located below the third movable plate (19).

4. The locking and releasing device for a satellite-borne antenna according to claim 3, characterized in that: A slot for use with the second connecting rod (10) is provided inside the first connecting rod (6), and a positioning groove for use with the positioning rod (14) is provided inside the first movable plate (9).

5. The locking and releasing device for a satellite-borne antenna according to claim 4, characterized in that: The two electromagnets (16) are both electrically connected to an external control device.

6. The locking and releasing device for a satellite-borne antenna according to claim 5, characterized in that: A positioning plate for limiting the position of the third movable plate (19) is fixedly connected to the outside of the antenna frame (4) and located above the third movable plate (19).

7. The locking and releasing device for a satellite-borne antenna according to claim 6, characterized in that: The bottom of the first connecting rod (6) is fixedly connected to a limiting plate.

8. The locking and releasing device for a satellite-borne antenna according to claim 3, characterized in that: The ends of the four antenna ears (17) away from the rotational connection are all slidably connected to the inner wall of the frame (2).

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