A retractable antenna buoy

Abstract

The present invention discloses a telescopic antenna buoy, comprising: a housing, a first end cover, a hydraulic cylinder body, a telescopic piston rod, a driving assembly, an antenna assembly and a second end cover; the hydraulic cylinder body has one end open and passes through one end of the first end cover; the telescopic piston rod, the piston part at one end forms a dynamic seal with the inside of the hydraulic cylinder, and the other end is connected to the driving assembly; the housing is hermetically and fixedly connected to the other end of the first end cover at one end and hermetically and fixedly connected to the second end cover at the other end; the antenna assembly is fixedly connected to the piston part. In the present invention, the driving assembly drives the telescopic piston rod to telescopically move in the hydraulic cylinder body, so as to realize the entry or discharge of water in the hydraulic cylinder body, thereby realizing the diving and floating of the antenna buoy. The structure is simple, and it is convenient for use and maintenance. At the same time, the telescopic piston rod drives the antenna assembly to contract during the contraction process, greatly reducing the axial dimension of the antenna buoy and improving the convenience of transportation and storage.

Description

Technical Field

[0001] The present invention relates to the technical field of profile buoys, and in particular to a retractable antenna buoy. Background Art

[0002] Ocean observation technology is the basis for the development of ocean science, the exploitation of ocean resources, and the monitoring of the ocean environment. Ocean observation has very practical and far-reaching significance for safeguarding ocean rights and interests, developing ocean resources, protecting the ocean environment, reducing ocean disasters, strengthening national defense construction, and promoting the progress of ocean science. Currently, the methods for measuring the profile data of hydrological environment elements in the ocean environment mainly include shipborne lowering type and fixed sensor chain type. For a quick-release antenna buoy, it needs to have the ability to automatically float and dive. The floating and diving mechanism of such antenna buoys in the prior art is complex in structure, and the overall size is relatively large, which is not convenient for transportation and storage. In addition, the antenna extends a certain distance from the buoy body and is easily damaged by collision. Summary of the Invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a retractable antenna buoy. The technical problems to be solved by the present invention are realized through the following technical solutions:

[0004] A first aspect of an embodiment of the present invention provides a retractable antenna buoy, including: a housing, a first end cap, a hydraulic cylinder body, a telescopic piston rod, a drive assembly, an antenna assembly, and a second end cap;

[0005] One end of the hydraulic cylinder body is open and passes through one end of the first end cap, and is fixedly connected to the first end cap;

[0006] One end of the telescopic piston rod forms a dynamic seal with the inside of the hydraulic cylinder, and the other end is connected to the drive assembly;

[0007] One end of the housing is hermetically and fixedly connected to the other end of the first end cap, and the other end is hermetically and fixedly connected to the second end cap, and is sleeved on the drive assembly and a part of the hydraulic cylinder body;

[0008] The antenna assembly is fixedly connected to the piston part and is located outside the first end cap.

[0009] In an embodiment of the present invention, the drive assembly includes: a drive motor, a drive lead screw, and a lead screw nut;

[0010] The drive motor is fixedly arranged in the housing, and the output shaft is fixedly connected to one end of the drive lead screw;

[0011] The drive lead screw is engaged with the lead screw nut;

[0012] The lead screw nut is fixedly connected to the other end of the telescopic piston rod and forms a limit in the circumferential direction.

[0013] In an embodiment of the present invention, it further includes a lead screw protection cover;

[0014] The lead screw protection cover is sleeved outside the driving lead screw, with one end fixedly connected to the other end of the hydraulic cylinder body, and the other end fixedly connected to the driving motor through a motor fixing seat.

[0015] In an embodiment of the present invention, an axially extending opening is provided on the lead screw protection cover;

[0016] A first travel limit switch and a second travel limit switch are fixedly arranged at both ends of the opening;

[0017] A limit block is fixedly arranged on the lead screw nut, and part of the limit block is located within the opening.

[0018] In an embodiment of the present invention, the rod part of the telescopic piston rod is a hollow structure, and the other end of the telescopic piston rod is fixedly sleeved on part of the lead screw nut;

[0019] The part of the driving lead screw away from the driving motor is inserted into the rod part of the telescopic piston rod.

[0020] In an embodiment of the present invention, the other end of the telescopic piston rod is threadedly connected to part of the lead screw nut.

[0021] In an embodiment of the present invention, it further includes a bearing and a bushing;

[0022] The bearing and the bushing are fixedly arranged in the lead screw protection cover and are sleeved at the position of the driving lead screw close to the driving motor.

[0023] In an embodiment of the present invention, one end of the lead screw protection cover is threadedly connected to the other end of the hydraulic cylinder body, and the other end is fixedly connected to the motor fixing seat;

[0024] The motor fixing seat is fixedly connected to the driving motor.

[0025] In an embodiment of the present invention, a stabilizing disk is further arranged on the first end cover;

[0026] The stabilizing disk includes: a flange plate and a plurality of uniformly arranged blades;

[0027] The flange plate is fixedly arranged on one end of the first end cover;

[0028] The blade has an arc-shaped surface structure and can fit against the side wall of the first end cap, and is hinged to the flange at one side through a hinge;

[0029] Wherein, the blade rotates under the action of an external force to fold on the side wall of the first end cap or expands around the first end cap after the external force is removed.

[0030] In an embodiment of the present invention, it further includes a battery module, a communication module, a sensor module and a control circuit;

[0031] The communication module and the control circuit are both fixedly arranged inside the first end cap and located inside the housing; the sensor module is arranged inside the second end cap;

[0032] The control circuit is electrically connected to the battery module, the communication module and the sensor module; the battery module is also electrically connected to the communication module and the sensor module;

[0033] The battery module is fixedly arranged inside the housing.

[0034] Advantages of the present invention:

[0035] In the present invention, the driving assembly drives the telescopic piston rod to telescopically move in the hydraulic cylinder body, so as to realize the entry or discharge of water in the hydraulic cylinder body, thereby realizing the diving and floating of the antenna buoy. The structure is simple, the manufacturing cost is saved, and it is convenient for use and maintenance. At the same time, during the contraction process of the telescopic piston rod, the antenna assembly is driven to contract, and then the antenna assembly contracts towards the hydraulic cylinder body, greatly reducing the axial dimension of the antenna buoy and improving the convenience of transportation and storage. In addition, the antenna assembly is not easily damaged during diving, transportation and storage.

[0036] Other features and advantages of the present invention will be described in the following specification, and part of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be realized and obtained through the structures specifically pointed out in the written specification, claims and drawings.

[0037] The technical solution of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0038] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0039] Figure 1 It is an overall structural schematic diagram of a telescopic antenna buoy provided by an embodiment of the present invention;

[0040] Figure 2 Exploded view of the internal structure of a retractable antenna buoy provided by an embodiment of the present invention;

[0041] Figure 3 Partial structure sectional view of a retractable antenna buoy provided by an embodiment of the present invention;

[0042] Figure 4 Stereo schematic diagram of another retractable antenna buoy provided by an embodiment of the present invention;

[0043] Figure 5 Schematic diagram of the structure of a lead screw protective cover provided by an embodiment of the present invention;

[0044] Figure 6 Schematic diagram of the structure of another lead screw protective cover provided by an embodiment of the present invention;

[0045] Figure 7 Schematic diagram of the installation structure of a bearing and a bushing provided by an embodiment of the present invention;

[0046] Figure 8 Schematic diagram of the blade deployment of a stabilizing disk provided by an embodiment of the present invention;

[0047] Figure 9 Schematic diagram of the blade closure of a stabilizing disk provided by an embodiment of the present invention;

[0048] Figure 10 Schematic diagram of the structure of a stabilizing disk provided by an embodiment of the present invention;

[0049] Figure 11 For Figure 10 Enlarged schematic view of part A;

[0050] Figure 12 Schematic diagram of the structure of the hinge structure of a stabilizing disk provided by an embodiment of the present invention;

[0051] Figure 13 Schematic diagram of the internal structure of a housing provided by an embodiment of the present invention.

[0052] Explanation of reference numerals:

[0053] 10 - Outer shell; 11 - Battery module; 12 - Communication module; 20 - First end cap; 31 - Hydraulic cylinder body; 32 - Telescopic piston rod; 33 - Piston part; 40 - Antenna assembly; 41 - Antenna body; 42 - Antenna rod; 50 - Second end cap; 61 - Driving motor; 62 - Driving lead screw; 63 - Lead screw nut; 64 - Lead screw protective cover; 65 - Motor fixing seat; 66 - Annular mounting step; 67 - Annular mounting boss; 68 - Compression nut; 70 - Opening; 71 - First travel limit switch; 72 - Second travel limit switch; 73 - Limit block; 74 - Mounting part; 80 - Bearing; 81 - Bush; 90 - Stabilizing disc; 91 - Flange; 911 - First mounting seat; 92 - Blade; 921 - Second mounting seat; 93 - Intermediate shaft; 94 - Torsion spring; 95 - Spring plunger. Detailed implementation mode

[0054] The following further describes the present invention in detail with reference to specific embodiments, but the implementation manners of the present invention are not limited thereto.

[0055] As Figure 1 、 Figure 2 shown, an embodiment of the present invention provides a telescopic antenna buoy, including: an outer shell 10, a first end cap 20, a hydraulic cylinder body 31, a telescopic piston rod 32, a driving assembly, an antenna assembly 40 and a second end cap 50.

[0056] One end of the hydraulic cylinder body 31 has an opening 70 and penetrates through one end of the first end cap 20, and the hydraulic cylinder body 31 is fixedly connected to the first end cap 20. One end of the telescopic piston rod 32 forms a dynamic seal with the inside of the hydraulic cylinder, and the other end of the telescopic piston rod 32 is connected to the driving assembly. The driving assembly drives the telescopic piston rod 32 to perform telescopic movement in the hydraulic cylinder body 31. One end of the outer shell 10 is hermetically and fixedly connected to the other end of the first end cap 20, and the other end of the outer shell 10 is hermetically and fixedly connected to the second end cap 50. Both ends of the outer shell 10 are hermetically sealed with the first end cap 20 and the second end cap 50 respectively, and the outer shell 10 is sleeved outside a part of the hydraulic cylinder body 31 and the driving assembly. The antenna rod 42 of the antenna assembly 40 is fixedly connected to the piston part 33, and the antenna assembly 40 is located outside the first end cap 20. The telescopic movement of the telescopic piston rod 32 drives the antenna assembly 40 to perform telescopic movement.

[0057] In this embodiment, various structures between the first end cap 20 and the second end cap 50 are sealed within the outer shell 10. After the antenna buoy enters the water, the first end cap 20 is the upper end and the second end cap 50 is the lower end. When diving is required, the driving assembly drives the telescopic piston rod 32 to contract downward. The sensors for collecting data are arranged within the second end cap 50. There is a pressure difference between the inside of the hydraulic cylinder body 31 and the outside world. Seawater is sucked into the hydraulic cylinder body 31 from one end of the hydraulic cylinder body 31. At this time, the drainage volume of the antenna buoy decreases, and the buoyancy force it receives in the water decreases. When the gravity is greater than the buoyancy force, it makes a diving motion. At the same time, when the device dives, the antenna assembly 40 does not work, and the antenna assembly 40 contracts downward together with the telescopic piston rod 32. During the diving process, the antenna assembly 40 is not easily damaged. When the antenna buoy needs to float, the driving assembly drives the telescopic piston rod 32 to extend out of the hydraulic cylinder body 31, and the water in the hydraulic cylinder body 31 is discharged to the outside of the antenna buoy. At this time, the drainage volume increases, and the buoyancy force received in the water increases. When the buoyancy force is greater than the gravity, it makes a floating motion. At the same time, the antenna assembly 40 extends upward together with the telescopic piston rod 32. When it reaches the water surface, the antenna assembly 40 communicates at the maximum height so that the antenna assembly 40 can better receive and transmit signals.

[0058] Further, as Figure 2 , Figure 3 and Figure 4 shown, the driving assembly includes: a driving motor 61, a driving lead screw 62, and a lead screw nut 63. The driving motor 61 is fixedly arranged within the outer shell 10, and the output shaft of the driving motor 61 is fixedly connected to one end of the driving lead screw 62. The driving lead screw 62 is engaged with the lead screw nut 63. The lead screw nut 63 is fixedly connected to the other end of the telescopic piston rod 32, and the lead screw nut 63 is limited in the circumferential direction.

[0059] In this embodiment, the driving lead screw 62 is coaxially arranged with the telescopic piston rod 32. The driving motor 61 drives the driving lead screw 62 to rotate. Since the lead screw nut 63 is limited in the circumferential direction, the lead screw nut 63 can only move linearly along the axial direction of the driving lead screw 62. Furthermore, the lead screw nut 63 drives the telescopic piston rod 32 to linearly extend and contract. The driving assembly of this embodiment not only has a simple structure but also reduces the radial dimension, thereby reducing the size of the antenna buoy, being easy to manufacture, saving the manufacturing cost, and being easy to maintain.

[0060] Here, the driving motor 61 drives the driving lead screw 62 to rotate, and the lead screw nut 63 drives the telescopic piston rod 32 to extend and contract to achieve the floating and diving of the antenna buoy.

[0061] Further, as Figure 2 , Figure 3 and Figure 4As shown in the figure, a telescopic antenna buoy is further provided with a lead screw protective cover 64. The lead screw protective cover 64 is sleeved outside the driving lead screw 62. One end of the lead screw protective cover 64 is fixedly connected to the other end of the hydraulic cylinder body 31, and the other end of the lead screw protective cover 64 is fixedly connected to the driving motor 61 through a motor fixing seat 65. In this embodiment, the driving lead screw 62 and the lead screw nut 63 are located inside the lead screw protective cover 64, and part of the telescopic piston rod 32 is also located inside the lead screw protective cover 64. The lead screw protective cover 64 not only protects the driving lead screw 62 and the lead screw nut 63, but also can fix the driving motor 61. The driving motor 61 can be arranged in the axial direction, further reducing the radial size of the antenna buoy.

[0062] Preferably, both the outer shell 10 and the lead screw protective cover 64 are of circular tube structure.

[0063] Furthermore, as Figure 5 、 Figure 6 shown in the figure, the lead screw protective cover 64 is provided with an opening 70 extending axially. The opening 70 penetrates through both ends of the lead screw protective cover 64 and the inside and outside of the lead screw protective cover 64. First and second travel limit switches 71 and 72 are fixedly arranged at both ends of the opening 70. A limit block 73 is fixedly arranged on the lead screw nut 63, and part of the limit block 73 is located inside the opening 70.

[0064] In this embodiment, due to the limiting effect of the slender opening 70 and the limit block 73, the lead screw nut 63 can only move axially along the driving lead screw 62 and will not rotate. When the limit block 73 moves to the position of the first travel limit switch 71 or the second travel limit switch 72, the limit block 73 can contact the travel limit switch to generate a switch signal, so that the driving motor 61 stops working, the driving lead screw 62 stops moving, the lead screw nut 63 stops moving, and the telescopic piston rod 32 stops moving. When the limit block 73 contacts the travel limit switch, it means that the telescopic piston rod 32 extends or retracts in place and then stops moving.

[0065] Preferably, an installation member 74 for installing a first stroke limit switch 71 and a second stroke limit switch 72 is further provided on the opening 70. The first stroke limit switch 71 and the second stroke limit switch 72 are installed on the opening 70 through the installation member 74. Specifically, annular protrusions are respectively provided circumferentially at both ends of the opening 70 on the lead screw protection cover 64. The installation member 74 can be in a long strip shape, and both ends of the installation member 74 are fixedly connected to the two annular protrusions respectively and cover the opening 70. The first stroke limit switch 71 and the second stroke limit switch 72 are fixedly connected to the position of the installation member 74 facing the inside of the opening 70 and close to both ends of the installation member 74. The first stroke limit switch 71 and the second stroke limit switch 72 are located within the opening 70. Here, the installation member 74 is fixedly connected to the annular protrusion so that there is a certain gap between the installation member 74 and the opening 70, thus avoiding interfering with the movement of the limit block 73.

[0066] In a feasible implementation manner, the limit block 73 can be fixedly connected to the other end of the telescopic piston rod 32, and the limit block 73 extends to the lead screw nut 63.

[0067] Furthermore, as Figure 3 shown, one end of the lead screw protection cover 64 is threadedly connected to the other end of the hydraulic cylinder body 31. Specifically, one end of the lead screw protection cover 64 penetrates into the hydraulic cylinder body 31, and the external thread of one end of the lead screw protection cover 64 is threadedly connected to the internal thread of the other end of the hydraulic cylinder body 31. The other end of the lead screw protection cover 64 is fixedly connected to the motor fixing seat 65. The motor fixing seat 65 is fixedly connected to the drive motor 61. Here, the other end of the lead screw protection cover 64 penetrates into the motor fixing seat 65 and is fixedly connected to the motor fixing seat 65.

[0068] Furthermore, as Figure 3 、 Figure 7 shown, a bearing 80 and a bushing 81 are provided in the lead screw protection cover 64. The bearing 80 and the bushing 81 are fixedly arranged in the lead screw protection cover 64 and close to the other end of the lead screw protection cover 64. The bearing 80 and the bushing 81 are sleeved on the position of the drive lead screw 62 close to the drive motor 61. Here, the bushing 81 and the bearing 80 are sleeved in sequence, and the bushing 81 is arranged close to the drive motor 61.

[0069] In a feasible implementation manner, as Figure 3 、 Figure 7As shown, an annular mounting step 66 is provided on the inner wall of the lead screw protective cover 64 near the other end, and an annular mounting boss 67 is provided at a position of the drive lead screw 62 near the other end. One side of the bushing 81 is fixed by a compression nut 68 threadedly connected to the drive lead screw 62. The other side of the bushing 81 is pressed into one side of the annular mounting step 66 inside the lead screw protective cover 64, and a bearing 80 is provided between the other side of the annular mounting step 66 and the annular mounting boss 67 of the drive lead screw 62.

[0070] Further, the telescopic piston rod 32 includes a rod portion and a piston portion 33. The rod portion of the telescopic piston rod 32 is a hollow structure, and the other end of the telescopic piston rod 32 (the other end of the rod portion of the telescopic piston rod 32) is fixedly sleeved on a part of the lead screw nut 63. Specifically, one end of the rod portion of the telescopic piston rod 32 is fixedly connected to the piston portion 33, and the internal thread at the other end of the rod portion of the telescopic piston rod 32 is threadedly connected to the external thread at one end of the lead screw nut 63. The hollow structure of the rod portion of the telescopic piston rod 32 reduces the self-weight of the antenna buoy. The part of the drive lead screw 62 away from the drive motor 61 is inserted into the rod portion of the telescopic piston rod 32.

[0071] Preferably, the antenna assembly 40 includes an antenna rod 42 and an antenna body 41. One end of the antenna rod 42 is fixedly connected to the antenna body 41, and the other end of the antenna rod 42 is fixedly connected to the piston portion 33.

[0072] Further, as Figure 8 、 Figure 9 shown, a stabilizing disk 90 is further provided on the first end cover 20. The stabilizing disk 90 includes: a flange disk 91 and a plurality of evenly arranged blades 92. The flange disk 91 is fixedly provided at one end of the first end cover 20. The blade 92 has an arc-shaped surface structure, and the blade 92 can be attached to the side wall of the first end cover 20. One side of the blade 92 is hinged to the flange disk 91 through a hinge structure. Among them, the blade 92 is folded to fit on the side wall of the first end cover 20 under the action of an external force or unfolds around the first end cover 20 after the external force is removed.

[0073] In this embodiment, a plurality of blades 92 are sequentially arranged along the circumferential direction of the first end cover 20. The stabilizing disk 90 further includes a water-soluble tape. One side of the blade 92 is hinged to the flange disk 91 and can be rotated to a folded state under the action of an external force or rotated to an unfolded state after the external force is removed; the water-soluble tape is bound around the outer periphery of the blade 92 in the folded state to keep it in the folded state and can be dissolved after contacting water to release the restraint on the blade 92.

[0074] When the stabilizing disk 90 is in a non-working state such as transportation and storage, the blade 92 can be rotated to the folded state and bound with a water-soluble tape to keep the blade 92 in this folded state. After the buoy is put into the water, the water-soluble tape dissolves and fails, and the blade 92 rotates to the unfolded state after the restraint is released, increasing the space utilization rate during the storage and transportation of the antenna buoy. At the same time, the folded blade 92 clings to the side wall of the first end cap 20.

[0075] The cross-section of the outer contour of the first end cap 20 is circular, and multiple blades 92 are in the shape of a curved arc surface. The size and shape of the blade 92 can be designed according to the actual use conditions. The number of blades 92 can be set appropriately according to the use conditions and costs. In this embodiment, there are four blades 92, and each blade 92 is an arc surface structure matching the outer wall of the first end cap 20. The sizes and shapes of the four blades 92 are the same. When the four blades 92 are in the folded state, the four blades 92 fit on the outer wall of the first end cap 20 and match the outer wall of the first end cap 20, minimizing the size to the greatest extent and facilitating the full utilization of space in non-working states such as transportation and storage. When the installation direction of the blade 92 is selected such that the convex surface faces upward after unfolding, at this time, the blade 92 can not only play a role in stabilizing the attitude, but also achieve rapid floating when starting to climb and protect, and when communicating on the water surface, make the body expose above the water surface as much as possible to improve the communication quality.

[0076] Among them, the water-soluble tape is a commercially available product, which will dissolve by itself after contacting water. When the blade 92 is in the folded state, the water-soluble tape is wound around the outer periphery of the blade 92 to bind the blade 92 to the first end cap 20 and keep the blade 92 in the folded state.

[0077] As Figure 10 、 Figure 11 、 Figure 12 shown, the hinge structure includes an intermediate shaft 93 and a torsion spring 94. Specifically, a first mounting seat 911 is provided on the flange 91, and a second mounting seat 921 is provided on one side of the blade 92. Both the first mounting seat 911 and the second mounting seat 921 are U-shaped structures. The intermediate shaft 93 is installed on the first mounting seat 911, and a mounting hole is provided in the second mounting seat 921. The second mounting seat 921 is rotatably installed on the intermediate shaft 93 through the mounting hole and is located outside the first mounting seat 911, that is, the first mounting seat 911 is located within the U-shaped opening 70 of the second mounting seat 921. The torsion spring 94 is located within the first mounting seat 911, with one end abutted against the first mounting seat 911 and the other end abutted against the second mounting seat 921. That is, the torsion spring 94 is located within the U-shaped opening 70 of the first mounting seat 911. The intermediate shaft 93 can be a threaded shaft or a smooth shaft.

[0078] In a feasible implementation, the intermediate shaft 93 is a threaded shaft, nuts are installed at both ends of the threaded shaft for fixation, the blade 92 is rotatably installed on the threaded shaft through the second mounting seat 921, and both ends of the blade are limited by the nuts.

[0079] In a feasible implementation, the intermediate shaft 93 is a smooth shaft, snap rings 70 are installed at both ends of the smooth shaft for fixation, the blade 92 is rotatably installed on the smooth shaft through the second mounting seat 921, and both ends of the blade are limited by the snap rings 70.

[0080] In order to lock the blade 92 when it rotates to the unfolded state, a locking mechanism is further included. The locking mechanism is installed on the flange 91 and is connected to the blade 92 when the blade 92 rotates to the unfolded state to limit the rotation of the blade 92. Specifically, the locking mechanism is a spring plunger 95. Through holes are respectively opened at both ends of the first mounting seat 911, the plunger body of the spring plunger 95 is installed in the through holes, and two limiting holes are opened at both ends of the second mounting seat 921. There are two spring plungers 95, and the plunger bodies of the two spring plungers 95 are respectively installed in the corresponding through holes at both ends of the first mounting seat 911. When the blade 92 is in the folded state, the plunger heads of the two spring plungers 95 respectively abut against the inner sides of the second mounting seat 921 at the corresponding ends, and when the blade 92 rotates to the unfolded state, the plunger heads snap into the corresponding limiting holes.

[0081] Among them, the spring plunger 95 is a commercially available product, which includes a plunger body and a plunger head installed in the plunger body. The plunger head extends from one end of the plunger body, and a spring is arranged in the plunger body, and one end of the spring abuts against the other end of the plunger head.

[0082] When the blade 92 is in the folded state, the limiting holes do not correspond to the through holes, the plunger head of the spring plunger 95 abuts against the inner side of the second mounting seat 921 of the blade 92, and the spring in the spring plunger 95 is compressed; when the blade 92 rotates to the unfolded state, the limiting holes rotate with the blade 92. When the limiting holes rotate to the position of the spring plunger 95, the plunger head pops out under the action of the spring and snaps into the limiting hole. After that, the blade 92 no longer rotates around the central axis and becomes the buoy stabilizer disk 90.

[0083] When the antenna buoy contacts the sea surface, the water-soluble tape for winding fails, and under the action of the torsion spring 94 that was originally in the compressed state, the blade 92 rotates around the intermediate shaft 93. When the blade 92 rotates to the specified position (in the unfolded state), that is, when the limiting hole on the second mounting seat 921 corresponds to the spring plunger 95, the plunger head of the spring plunger 95 pops out and snaps into the limiting hole to limit the continued rotation of the blade 92. After that, the blade 92 and the flange 91 basically remain in a static state, and the unfolded blade 92 acts as the stabilizer disk 90.

[0084] In this embodiment, the buoy stabilizing disk 90 can be attached to the surface of the first end cap 20 in the non-working state, enabling the buoy to have a smaller outer diameter size, increasing the space utilization rate during transportation and storage; reducing the overall outer diameter size allows the buoy to be quickly deployed by means of airdropping or other deployment forms in sensitive sea areas and special sea conditions; the damage of a single blade 92 will not affect the entire stabilizing disk 90, and the maintenance cost is low.

[0085] Furthermore, as Figure 13 shown, a retractable antenna buoy further includes a battery module 11, a communication module 12, a sensor module, and a control circuit.

[0086] The communication module 12 and the control circuit are both fixedly arranged inside the first end cap 20 and are located inside the housing 10; the sensor module is arranged inside the second end cap 50. The control circuit is electrically connected to the battery module 11, the communication module 12, and the sensor module; the battery module 11 is also electrically connected to the communication module 12 and the sensor module. The communication module 12 transceives commands with the antenna body 41 and transmits the data of the sensor module.

[0087] The battery module 11 is fixedly arranged inside the housing 10. A plurality of batteries of the battery module 11 are arranged along the circumferential direction and axially stacked through a plurality of annular battery holders, and the battery module 11 is sleeved outside the drive assembly and the lead screw protection cover 64. Here, the drive motor 61 and the lead screw protection cover 64 pass through the inner rings of the annular battery holders, and a plurality of batteries are sequentially fixed on the annular battery holders. The plurality of annular battery holders are axially stacked in sequence, and two adjacent annular battery holders are respectively fixedly connected to both ends of a battery. The plurality of annular battery holders are also fixedly connected through a plurality of fixing rods. A fixing rod sequentially passes through a plurality of annular battery holders, and both ends of the fixing rod are fixedly connected to the two end annular battery holders. The structure of the battery module 11 in this embodiment is compact, reducing the radial size of the antenna buoy.

[0088] In this application, unless otherwise clearly specified and defined, terms such as "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0089] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A telescopic antenna buoy, characterized in that, Comprising: A housing, a first end cover, a hydraulic cylinder body, a telescopic piston rod, a drive assembly, an antenna assembly, and a second end cover; One end of the hydraulic cylinder body is open and passes through one end of the first end cover, and is fixedly connected to the first end cover; One end of the telescopic piston rod forms a dynamic seal with the interior of the hydraulic cylinder body, and the other end is connected to the drive assembly; One end of the housing is hermetically and fixedly connected to the other end of the first end cover, and the other end is hermetically and fixedly connected to the second end cover, and is sleeved outside the drive assembly and part of the hydraulic cylinder body; The antenna assembly is fixedly connected to the piston part and is located outside the first end cover; Wherein, when diving, the drive assembly drives the telescopic piston rod to contract downward, seawater is sucked into the hydraulic cylinder body from one end of the hydraulic cylinder body, the drainage volume of the antenna buoy decreases, the buoyancy force received in the water decreases, and it makes a diving movement when the gravity is greater than the buoyancy force; at the same time, the antenna assembly contracts downward together with the telescopic piston rod; when surfacing, the drive assembly drives the telescopic piston rod to extend out of the hydraulic cylinder body, discharges the water in the hydraulic cylinder body to the outside of the antenna buoy, the drainage volume of the antenna buoy increases, the buoyancy force received in the water increases, and it makes a surfacing movement when the buoyancy force is greater than the gravity; at the same time, the antenna assembly extends upward together with the telescopic piston rod, and when reaching the water surface, the antenna assembly communicates at the maximum height; The drive assembly includes: a drive motor, a drive lead screw, and a lead screw nut; The drive motor is fixedly arranged inside the housing, and the output shaft is fixedly connected to one end of the drive lead screw; The drive lead screw cooperates with the lead screw nut; The lead screw nut is fixedly connected to the other end of the telescopic piston rod and forms a limit in the circumferential direction; It further includes a lead screw protective cover; The lead screw protective cover is sleeved outside the drive lead screw, one end is fixedly connected to the other end of the hydraulic cylinder body, and the other end is fixedly connected to the drive motor through a motor fixing seat; The first end cover is the upper end, and the second end cover is the lower end.

2. The retractable antenna buoy according to claim 1, characterized in that, An axially extending opening is provided on the lead screw protective cover; A first travel limit switch and a second travel limit switch are fixedly arranged at both ends of the opening; A limit block is fixedly arranged on the lead screw nut, and part of the limit block is located inside the opening; 3. The telescopic antenna buoy according to claim 2, wherein, The rod part of the telescopic piston rod is a hollow structure, and the other end of the telescopic piston rod is fixedly sleeved on part of the lead screw nut; The part of the drive lead screw away from the drive motor is arranged inside the rod part of the telescopic piston rod; 4. The telescopic antenna buoy according to claim 3, wherein, The other end of the telescopic piston rod is threadedly connected to part of the lead screw nut; 5. The retractable antenna buoy according to claim 3, wherein, It further includes a bearing and a bushing; The bearing and the bushing are fixedly arranged inside the lead screw protective cover and are sleeved at the position of the drive lead screw close to the drive motor; 6. The retractable antenna buoy according to claim 3, wherein, One end of the lead screw protective cover is threadedly connected to the other end of the hydraulic cylinder body, and the other end is fixedly connected to the motor fixing seat; The motor fixing seat is fixedly connected to the drive motor; 7. A retractable antenna buoy according to claim 1, characterized in that, A stabilizing disc is further arranged on the first end cover; The stabilizing disc includes: a flange disc and a plurality of uniformly arranged blades; The flange disc is fixedly arranged on one end of the first end cover; The blade has an arc-shaped surface structure and can fit against the side wall of the first end cap, and is hinged to the flange at one side. Among them, the blade rotates under the action of an external force to fold on the side wall of the first end cap or unfolds around the first end cap after the external force is removed.

8. A retractable antenna buoy according to claim 1, characterized in that, It further includes a battery module, a communication module, a sensor module and a control circuit. The communication module and the control circuit are both fixedly arranged inside the first end cap and located inside the housing; the sensor module is arranged inside the second end cap. The control circuit is electrically connected to the battery module, the communication module and the sensor module; the battery module is also electrically connected to the communication module and the sensor module. The battery module is fixedly arranged inside the housing.

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