A satellite antenna for marine ship communications

Abstract

The invention discloses a satellite antenna for marine ship communications, belonging to the technical field of satellite antennas for marine ships. The satellite antenna for marine ship communications comprises an upper cover and a bottom cover, wherein the bottom of the upper cover is fixedly connected with a satellite antenna support rod; the satellite antenna for marine ship communications is configured by placing a mounting disc on the satellite antenna into a groove of the bottom cover, and pulling a limiting rod so that a pop-up rod automatically pops up, and by driving the smooth rod upward to rotate a rotating rod, the rotating rod controls a driving plate to rotate, so that an arc-shaped extrusion plate and an accommodating slide groove are limited, and at the same time, the one-way movement of a ratchet pawl is coordinated, so that the connection can be tightly wrapped during installation, and rapid installation can be achieved while ensuring the sealing between the mounting disc of the satellite antenna and the bottom cover, so as to prevent rainwater and seawater from entering the interior of the satellite antenna to cause a short circuit in the circuit, and thus the overall service life of the satellite antenna can be extended.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite antennas for marine vessels, and in particular to a satellite antenna for marine vessel communications. Background Art

[0002] Marine satellite antenna generally refers to ship satellite antenna, which is a device installed on a ship for receiving satellite signals, enabling ships at sea to receive various signals from satellites, such as weather forecasts, navigation safety information, TV programs, etc.

[0003] After searching, the Chinese patent authorization announcement number CN103474771B discloses a marine satellite antenna, which belongs to the field of electronic communication technology. It solves the technical problem of the winding of the internal wires of the antenna caused by the unlimited rotation of the antenna during the satellite antenna search process in the prior art. It includes a base, an antenna shell detachably connected to the base, a central axis is fixed on the base, a bottom plate that can rotate around the central axis is passed through the central axis, a central gear located on the lower side of the bottom plate is fixed on the central axis, a first drive motor is fixed on the bottom plate, a first planetary gear is fixed on the output shaft of the first drive motor, the first planetary gear is meshed with the central gear, and an antenna is also movably connected to the bottom plate. The marine satellite antenna also includes a rotation limit device. The above patent has the following deficiencies: when installing the existing satellite antenna for marine ship communications, bolts are usually used to install the base and bottom cover of the satellite antenna. However, due to the harsh environment often found at sea and the erosion of the bottom cover by seawater, the bolts can easily become loose over a long period of time, and the surface becomes rusty, making it difficult to disassemble later. In addition, the installation speed is too slow, and the satellite antenna may even collapse or shake due to the loosening of the bolts during use, resulting in unstable signal reception and shortening the service life of the satellite antenna. The satellite antenna does not have the function of sealing the base and bottom cover of the satellite antenna. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the base and the bottom cover of the satellite antenna cannot be sealed, resulting in a reduced service life of the parts, and to propose a satellite antenna for marine ship communications.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A satellite antenna for marine ship communications comprises an upper cover and a bottom cover, wherein the bottom of the upper cover is fixedly connected to a satellite antenna support rod, and the bottom of the satellite antenna support rod is fixedly connected to a mounting disc, and further comprises: a sealing airbag ring fixedly connected to the top surface of the bottom cover; a receiving slide groove opened inside the bottom cover; four airbag bags arranged in a circular array in the receiving slide groove, and a conveying pipe is arranged between the four airbag bags and the sealing airbag ring; and an arc-shaped extrusion plate slidably connected to the mounting disc.

[0007] Preferably, a mounting groove matched with the sealing airbag ring is provided on the top surface of the bottom cover, a groove is provided on the surface of the bottom cover, and the mounting disc is slidably connected to the groove of the bottom cover.

[0008] Preferably, a cavity is provided inside the mounting disc, a circular groove is provided on the inner wall of the cavity of the mounting disc, a driving plate is rotatably connected in the circular groove in the cavity of the mounting disc, and an arc-shaped hole is provided on the surface of the driving plate.

[0009] Preferably, a push rod passes through the inner wall of the cavity of the mounting disc, and the push rod is slidably connected to the cavity of the mounting disc. A sliding rod is fixedly connected to the top surface of the push rod, and the sliding rod passes through the arc hole and is slidably connected to the arc hole. One end of the push rod close to the outside of the mounting disc is fixedly connected to the arc extrusion plate.

[0010] Preferably, a first spring is sleeved on the surface of the push rod, one end of the first spring is fixedly connected to the sliding rod, and the other end of the first spring is fixedly connected to the inner wall of the cavity of the mounting disk, a rotating rod passes through the center of the surface of the driving plate, the rotating rod is fixedly connected to the driving plate, a columnar groove is opened inside the rotating rod, and the rotating rod is rotatably connected to the satellite antenna support rod.

[0011] Preferably, a sliding groove is provided on the inner wall at the bottom of the groove of the bottom cover, a pop-up rod is slidably connected in the sliding groove of the bottom cover, a smooth rod is fixedly connected to the top side surface of the pop-up rod, a spiral sliding groove matched with the smooth rod is provided on the inner wall of the columnar groove, and a second spring is fixedly connected to the bottom surface of the pop-up rod.

[0012] Preferably, the bottom of the second spring is fixedly connected to the inner wall of the bottom of the slide groove of the groove of the bottom cover, the right side of the bottom cover is slidably connected to a limit rod, the right side of the bottom cover is provided with a accommodating cavity, and the surface of the limit rod is sleeved with a third spring.

[0013] Preferably, one end of the third spring is fixedly connected to the limit rod, and the other end of the third spring is fixedly connected to the right inner wall of the accommodating cavity. The right side surface of the pop-up rod is provided with a first limit groove and a second limit groove. The second spring is initially in a compressed state, and the limit rod is initially inside the first limit groove. A sliding groove matching the smooth rod is provided on the inner wall of the columnar groove, and a through hole corresponding to the pop-up rod and the smooth rod is provided on the bottom surface of the mounting disc.

[0014] Preferably, a circular groove is provided inside the satellite antenna support rod, and a rotating plate passes through the surface of the rotating rod near the circular groove of the satellite antenna support rod, the rotating plate is fixedly connected to the rotating rod, a groove is provided on the outer surface of the rotating plate, a smooth ball block is rotatably connected in the groove of the rotating plate, and a sliding groove corresponding to the smooth ball block is provided on the inner wall of the circular groove of the satellite antenna support rod.

[0015] Preferably, a limit cavity is provided on the bottom surface of the satellite antenna support rod, a ratchet is penetrated on the surface of the rotating rod near the limit cavity, the ratchet is fixedly connected to the rotating rod, a cylindrical tube is fixedly connected to the top surface of the mounting disk, a toggle rod is rotatably and slidably connected inside the cylindrical tube, a fourth spring is fixedly connected between the bottom of the toggle rod and the cylindrical tube, a pawl is penetrated on the surface of the toggle rod, the pawl is fixedly connected to the toggle rod, a vertical groove is provided on the outer wall of the satellite antenna support rod, the toggle rod penetrates the vertical groove of the satellite antenna support rod, and is slidably connected to the vertical groove of the satellite antenna support rod.

[0016] Compared with the prior art, the present invention provides a satellite antenna for marine ship communications, which has the following beneficial effects:

[0017] The satellite antenna for marine ship communication is provided by placing the mounting disc on the satellite antenna into the groove of the bottom cover, and by pulling the limit rod, the pop-up rod automatically pops up, and by driving the circular smooth rod upward to rotate the rotating rod, the rotating rod controls the driving plate to rotate, so that the arc-shaped extrusion plate and the accommodating slide groove are limited, and at the same time, the one-way movement of the ratchet pawl is coordinated, so that the mounting disc of the satellite antenna and the bottom cover can be quickly installed. During the installation, the arc-shaped extrusion plate squeezes the airbag bag to expand the sealing airbag ring at the installation connection, and the connection is tightly wrapped, so that the fast installation can be achieved and the sealing between the mounting disc of the satellite antenna and the bottom cover can be ensured, so that rainwater and seawater are prevented from entering the interior of the satellite antenna to cause a short circuit in the circuit, and the overall service life of the satellite antenna can be extended, so that the satellite antenna can work more stably and reliably on marine ships. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front structural schematic diagram of a satellite antenna for marine ship communications proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of a satellite antenna for marine ship communications proposed by the present invention;

[0020] Figure 3 A satellite antenna for marine ship communications proposed by the present invention Figure 2 The structural diagram of part A in the figure;

[0021] Figure 4 This is a structural schematic diagram of a bottom cover section and a mounting disc section in a satellite antenna for marine ship communications proposed by the present invention;

[0022] Figure 5 A satellite antenna for marine ship communications proposed by the present invention Figure 4 The structural diagram of part B;

[0023] Figure 6 This is a schematic diagram of the structure of the interior of the installation disk and the driving board in a satellite antenna for marine ship communications proposed by the present invention, viewed from above;

[0024] Figure 7 A satellite antenna for marine ship communications proposed by the present invention Figure 6 Schematic diagram of the structure of part C;

[0025] Figure 8 This is a schematic structural diagram of a cross-section of a transfer rod in a satellite antenna for marine ship communications proposed by the present invention;

[0026] Fig. 9 This is a schematic structural diagram of a pop-up rod and a smooth rod in a satellite antenna for marine ship communications proposed by the present invention;

[0027] Fig.10 This is a front view structural schematic diagram of a mounting disk, a satellite antenna support rod, and a bottom cover in a satellite antenna for marine ship communications proposed by the present invention;

[0028] Fig.11 This is a schematic diagram of the structure of the interior of a disk installed in a satellite antenna for marine ship communications proposed by the present invention;

[0029] Fig.12 A satellite antenna for marine ship communications proposed by the present invention Fig.11 Schematic diagram of the structure of part D.

[0030] In the figure: 1, upper cover; 2, bottom cover; 3, satellite antenna support rod; 4, mounting disc; 5, sealing airbag ring; 6, accommodating slide groove; 7, airbag bag; 8, delivery pipe; 9, arc-shaped extrusion plate; 10, driving plate; 11, arc-shaped hole; 12, push rod; 13, sliding rod; 14, first spring; 15, rotating rod; 16, columnar groove; 17, ejection rod; 18, smooth rod; 19, second spring; 20, limiting rod; 2001, accommodating cavity; 21, third spring; 22, first limiting groove; 23, second limiting groove; 24, rotating plate; 25, smooth ball block; 26, limiting cavity; 27, ratchet; 28, cylindrical tube; 29, toggle rod; 30, fourth spring; 31, pawl. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Reference Figure 1-Figure 4 A satellite antenna for marine ship communications comprises an upper cover 1 and a bottom cover 2, wherein a satellite antenna support rod 3 is fixedly connected to the bottom of the upper cover 1, and a mounting disc 4 is fixedly connected to the bottom of the satellite antenna support rod 3. The invention also comprises: a sealing airbag ring 5 fixedly connected to the top surface of the bottom cover 2; a receiving slide groove 6 opened inside the bottom cover 2; four airbag bags 7, which are arranged in a circular array in the receiving slide groove 6, and a conveying pipe 8 is arranged between the four airbag bags 7 and the sealing airbag ring 5; and an arc-shaped extrusion plate 9 slidably connected to the mounting disc 4.

[0034] In the present invention, when installing the satellite antenna, after the installation disc 4 enters the bottom cover 2, the four airbag bags 7 are squeezed by the arc-shaped squeezing plate 9, and the gas in the airbag bags 7 enters the sealed airbag ring 5 through the delivery pipe 8, causing the sealed airbag ring 5 to expand, and tightly wrap the connection between the installation disc 4 and the bottom cover 2, thereby preventing seawater and rainwater from entering the bottom cover 2, avoiding the internal parts of the bottom cover 2 from being eroded by seawater and rainwater, extending the service life, and further increasing the stability of the satellite antenna when used on marine ships, which can make the signal of the satellite antenna more stable.

[0035] In some embodiments, reference Figure 1-Figure 12The top surface of the bottom cover 2 is provided with a mounting groove matched with the sealing airbag ring 5, and the surface of the bottom cover 2 is provided with a groove, and the mounting disc 4 is slidably connected with the groove of the bottom cover 2.

[0036] A cavity is formed inside the mounting disc 4 , and a circular groove is formed on the inner wall of the cavity of the mounting disc 4 . A driving plate 10 is rotatably connected in the circular groove in the cavity of the mounting disc 4 , and an arc-shaped hole 11 is formed on the surface of the driving plate 10 .

[0037] In the present invention, the circular groove in the cavity of the mounting disc 4 can make the driving plate 10 rotate more stably.

[0038] A push rod 12 passes through the inner wall of the cavity of the mounting disc 4, and the push rod 12 is slidably connected to the cavity of the mounting disc 4. A sliding rod 13 is fixedly connected to the top surface of the push rod 12. The sliding rod 13 passes through the arc hole 11 and is slidably connected to the arc hole 11. One end of the push rod 12 close to the outside of the mounting disc 4 is fixedly connected to the arc extrusion plate 9.

[0039] In the present invention, when the driving plate 10 rotates, the arc hole 11 will be driven to rotate. When the arc hole 11 rotates, the sliding rod 13 will slide along the arc hole 11, thereby driving the push rod 12 to slide outside the mounting disc 4, thereby driving the arc extrusion plate 9 to slide outward.

[0040] A first spring 14 is sleeved on the surface of the push rod 12, one end of the first spring 14 is fixedly connected to the sliding rod 13, and the other end of the first spring 14 is fixedly connected to the inner wall of the cavity of the mounting disk 4. A rotating rod 15 passes through the center of the surface of the driving plate 10, and the rotating rod 15 is fixedly connected to the driving plate 10. A columnar groove 16 is opened inside the rotating rod 15, and the rotating rod 15 is rotatably connected to the satellite antenna support rod 3.

[0041] In the present invention, when the driving plate 10 rotates, it drives the push rod 12 to slide toward the outside of the mounting disc 4, and the push rod 12 will compress the first spring 14. When the driving plate 10 rotates in the opposite direction, the first spring 14 helps to reset the push rod 12, the driving plate 10 and the arc-shaped extrusion plate 9. The driving plate 10 can be driven to rotate by rotating the rotating rod 15.

[0042] A sliding groove is provided on the inner wall at the bottom of the groove of the bottom cover 2, and a pop-up rod 17 is slidably connected in the sliding groove of the bottom cover 2. A smooth rod 18 is fixedly connected to the top side surface of the pop-up rod 17. A spiral sliding groove matching the smooth rod 18 is provided on the inner wall of the columnar groove 16, and a second spring 19 is fixedly connected to the bottom surface of the pop-up rod 17.

[0043] In the present invention, when the pop-up rod 17 drives the smooth rod 18 to enter the cylindrical groove 16 of the rotating rod 15, the smooth rod 18 interferes with the spiral groove on the inner wall of the cylindrical groove 16, so that the rotating rod 15 can be rotated. The smooth rod 18 and the spiral groove of the cylindrical groove 16 can slide back and forth up and down, so that the rotating rod 15 can rotate forward and backward.

[0044] Reference Figure 1-Figure 12 In some embodiments, the bottom of the second spring 19 is fixedly connected to the inner wall of the bottom of the slide groove of the groove of the bottom cover 2, and the right side of the bottom cover 2 is slidably connected to a limit rod 20. The right side of the bottom cover 2 is provided with a accommodating cavity 2001, and the surface of the limit rod 20 is sleeved with a third spring 21.

[0045] In the present invention, through the third spring 21 in the accommodating cavity 2001, the limit rod 20 can be automatically reset after the limit rod 20 is pulled. At the same time, the third spring 21 can make the limit rod 20 more tightly contact with the first limit groove 22 and the second limit groove 23 on the pop-up rod 17, and the limit is more stable.

[0046] One end of the third spring 21 is fixedly connected to the limiting rod 20, and the other end of the third spring 21 is fixedly connected to the right inner wall of the accommodating chamber 2001. The right side surface of the pop-up rod 17 is provided with a first limiting groove 22 and a second limiting groove 23. The second spring 19 is initially in a compressed state. The limiting rod 20 is initially inside the first limiting groove 22. A sliding groove matching the smooth rod 18 is provided on the inner wall of the columnar groove 16, and a through hole corresponding to the pop-up rod 17 and the smooth rod 18 is provided on the bottom surface of the mounting disk 4.

[0047] When the driving plate 10 rotates, the arc hole 11 is driven to rotate, and the sliding rod 13 is driven along the arc hole 11, thereby driving the push rod 12 to slide toward the outside of the mounting disc 4, thereby driving the arc extrusion plate 9 to slide outward and extend outward, and slide along the slide groove of the receiving slide groove 6 of the bottom cover 2. At this time, the four arc extrusion plates 9 squeeze the four airbag bags 7 respectively, and the gases in the four airbag bags 7 are respectively released through the arc hole 11. The four conveying pipes 8 enter the sealing airbag ring 5, thereby expanding the sealing airbag ring 5, expanding and wrapping the connection between the mounting disc 4 and the bottom cover 2, so that the connection between the mounting disc 4 and the bottom cover 2 can achieve a sealing effect, thereby preventing rainwater and seawater from entering the bottom cover 2 and causing a short circuit in the circuit, preventing the components in the satellite antenna from being eroded by seawater and rainwater, helping to extend the service life of the components in the satellite antenna, and allowing the satellite antenna to provide a more stable signal during operation; after the pop-up rod 17 pops up, release the limit rod 20, and the limit rod 20 will automatically enter the second limit groove 23, which can prevent the pop-up rod 17 from sliding downward and play a limiting role for the pop-up rod 17. When the limit rod 20 is pulled outward again and then pulled downward, the limit rod 20 enters the first limit groove 22 again, so that the pop-up rod 17 can be limited, which facilitates the disassembly of the satellite antenna as a whole.

[0048] A circular groove is provided inside the satellite antenna support rod 3, and a rotating plate 24 passes through the surface of the rotating rod 15 near the circular groove of the satellite antenna support rod 3. The rotating plate 24 is fixedly connected to the rotating rod 15, and a groove is provided on the outer surface of the rotating plate 24. A smooth ball block 25 is rotatably connected in the groove of the rotating plate 24, and a sliding groove corresponding to the smooth ball block 25 is provided on the inner wall of the circular groove of the satellite antenna support rod 3.

[0049] In the present invention, when the rotating rod 15 rotates, it will drive the external rotating plate 24 to rotate synchronously. The rotating plate 24 drives the smooth ball block 25 on the outer side to rotate in the circular groove of the satellite antenna support rod 3, which helps the smooth rod 18 to contact the spiral groove on the inner wall of the columnar groove 16 to make the rotating rod 15 rotate more smoothly, thereby making the rotating rod 15 drive the driving plate 10 to rotate more smoothly and quickly.

[0050] A limit cavity 26 is provided on the bottom surface of the satellite antenna support rod 3, and a ratchet 27 is passed through the surface of the rotating rod 15 near the limit cavity 26, and the ratchet 27 is fixedly connected to the rotating rod 15. A cylindrical tube 28 is fixedly connected to the top surface of the mounting disk 4, and a toggle rod 29 is rotatably and slidably connected inside the cylindrical tube 28. A fourth spring 30 is fixedly connected between the bottom of the toggle rod 29 and the cylindrical tube 28, and a pawl 31 is passed through the surface of the toggle rod 29, and the pawl 31 is fixedly connected to the toggle rod 29. A vertical groove is provided on the outer wall of the satellite antenna support rod 3, and the toggle rod 29 passes through the vertical groove of the satellite antenna support rod 3 and is slidably connected to the vertical groove of the satellite antenna support rod 3.

[0051] In the present invention, when the rotating rod 15 rotates, the ratchet 27 is also driven to rotate. The ratchet 27 can only rotate in one direction under the action of the pawl 31. Therefore, when the satellite antenna drives the installation disc 4 to be installed between the bottom cover 2, the ratchet 27 cannot rotate in the reverse direction, and the installation is automatically locked and limited. When the installation disc 4 and the bottom cover 2 of the satellite antenna need to be disassembled, it is only necessary to press the toggle rod 29 downward to drive the pawl 31 to press downward, and compress the fourth spring 30 in the cylindrical tube 28. The pawl 31 is disengaged from the ratchet 27, and the ratchet 27 can rotate forward and backward. Therefore, under the action of the first spring 14, a reverse force is applied to the arc-shaped extrusion plate 9, and the pop-up rod 17 is pulled downward to drive the smooth rod 18 to slide downward along the inner wall of the spiral groove of the columnar groove 16, so that the rotating rod 15 can be rotated in the opposite direction, thereby controlling the arc-shaped extrusion plate 9 to disengage from the accommodating groove 6, and the first limit groove 22 on the pop-up rod 17 and the limit rod 20 are limited again, and the satellite antenna can be moved upward as a whole to complete the disassembly.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A satellite antenna for marine ship communications, comprising an upper cover (1) and a bottom cover (2), wherein the bottom of the upper cover (1) is fixedly connected to a satellite antenna support rod (3), characterized in that: The bottom of the satellite antenna support rod (3) is fixedly connected to a mounting disc (4), and further comprises: A sealing airbag ring (5) fixedly connected to the top surface of the bottom cover (2); The top surface of the bottom cover (2) is also provided with a mounting groove adapted to the sealing airbag ring (5), the surface of the bottom cover (2) is provided with a groove, and the mounting disc (4) is slidably connected to the groove of the bottom cover (2); A receiving slide groove (6) is provided inside the bottom cover (2); Four airbag bags (7) are arranged in a circular array in the receiving chute (6), and a delivery pipe (8) is arranged between the four airbag bags (7) and the sealing airbag ring (5); The arc-shaped extrusion plate (9) is slidably connected to the mounting disc (4). A cavity is provided inside the mounting disc (4), a circular groove is provided on the inner wall of the cavity of the mounting disc (4), a driving plate (10) is rotatably connected in the circular groove in the cavity of the mounting disc (4), an arc-shaped hole (11) is provided on the surface of the driving plate (10), a push rod (12) passes through the inner wall of the cavity of the mounting disc (4), the push rod (12) is slidably connected to the cavity of the mounting disc (4), a sliding rod (13) is fixedly connected to the top surface of the push rod (12), the sliding rod (13) passes through the arc-shaped hole (11) and is slidably connected to the arc-shaped hole (11), and one end of the push rod (12) close to the outside of the mounting disc (4) is fixedly connected to the arc-shaped extrusion plate (9).

2. A satellite antenna for marine ship communications according to claim 1, characterized in that: A first spring (14) is sleeved on the surface of the push rod (12), one end of the first spring (14) is fixedly connected to the sliding rod (13), and the other end of the first spring (14) is fixedly connected to the inner wall of the cavity of the mounting disk (4). A rotating rod (15) passes through the center of the surface of the driving plate (10), and the rotating rod (15) is fixedly connected to the driving plate (10). A columnar groove (16) is provided inside the rotating rod (15), and the rotating rod (15) is rotatably connected to the satellite antenna support rod (3).

3. A satellite antenna for marine ship communications according to claim 2, characterized in that: A sliding groove is provided on the inner wall at the bottom of the groove of the bottom cover (2), a pop-up rod (17) is slidably connected in the sliding groove of the bottom cover (2), a smooth rod (18) is fixedly connected to the top side surface of the pop-up rod (17), a spiral sliding groove matching the smooth rod (18) is provided on the inner wall of the columnar groove (16), and a second spring (19) is fixedly connected to the bottom surface of the pop-up rod (17).

4. A satellite antenna for marine ship communications according to claim 3, characterized in that: The bottom of the second spring (19) is fixedly connected to the inner wall of the bottom of the slide groove of the groove of the bottom cover (2); the right side of the bottom cover (2) is slidably connected to a limit rod (20); a receiving cavity (2001) is provided inside the right side of the bottom cover (2); and a third spring (21) is sleeved on the surface of the limit rod (20).

5. A satellite antenna for marine ship communications according to claim 4, characterized in that: One end of the third spring (21) is fixedly connected to the limiting rod (20), and the other end of the third spring (21) is fixedly connected to the right inner wall of the accommodating chamber (2001). The right surface of the ejection rod (17) is provided with a first limiting groove (22) and a second limiting groove (23). The second spring (19) is initially in a compressed state. The limiting rod (20) is initially inside the first limiting groove (22). A sliding groove matching the smooth rod (18) is provided on the inner wall of the columnar groove (16). A through hole corresponding to the ejection rod (17) and the smooth rod (18) is provided on the bottom surface of the mounting disc (4).

6. A satellite antenna for marine ship communications according to claim 2, characterized in that: A circular groove is provided inside the satellite antenna support rod (3); a rotating plate (24) is passed through the surface of the rotating rod (15) near the circular groove of the satellite antenna support rod (3); the rotating plate (24) is fixedly connected to the rotating rod (15); a groove is provided on the outer surface of the rotating plate (24); a smooth ball block (25) is rotatably connected in the groove of the rotating plate (24); and a sliding groove corresponding to the smooth ball block (25) is provided on the inner wall of the circular groove of the satellite antenna support rod (3).

7. A satellite antenna for marine ship communications according to claim 1, characterized in that: The bottom surface of the satellite antenna support rod (3) is provided with a limit cavity (26), the surface of the rotating rod (15) near the limit cavity (26) is penetrated by a ratchet (27), the ratchet (27) is fixedly connected to the rotating rod (15), the top surface of the mounting disc (4) is fixedly connected to a cylindrical tube (28), the interior of the cylindrical tube (28) is rotatably and slidably connected to a toggle rod (29), a fourth spring (30) is fixedly connected between the bottom of the toggle rod (29) and the cylindrical tube (28), a ratchet (31) is penetrated by the surface of the toggle rod (29), the ratchet (31) is fixedly connected to the toggle rod (29), a vertical groove is provided on the outer wall of the satellite antenna support rod (3), the toggle rod (29) penetrates the vertical groove of the satellite antenna support rod (3), and is slidably connected to the vertical groove of the satellite antenna support rod (3).

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