Device for information interaction of mobile communication terminal under water through electromagnetic waves

Abstract

The invention provides an underwater information interaction device of a mobile communication terminal through electromagnetic waves, which is characterized by comprising an electromagnetic wave transceiving unit, a cable winding and unwinding reel and a fixed bracket, the electromagnetic wave receiving and transmitting unit is used for realizing wireless information interaction between the device and the mobile intelligent terminal through an antenna contained in the electromagnetic wave receiving and transmitting unit; the cable take-up and pay-off reel is used for realizing take-up and pay-off of a cable, fixing the antenna and enabling the antenna to synchronously rotate along with the cable take-up and pay-off reel; and the fixed bracket is used for keeping the relative positions of the mobile intelligent terminal and the device fixed. The cable and the underwater mobile intelligent terminal are adopted to perform information interaction in an electromagnetic wave wireless connection mode, and an underwater cable winding and unwinding structure is adopted on the basis, so that the problem that the safety and maneuverability are seriously insufficient is solved to a great extent.

Description

Technical Field

[0001] The present invention relates to the field of machinery, specifically to the field of underwater wireless communication equipment, and in particular to a device for a mobile communication terminal to perform information exchange underwater through electromagnetic waves. Background Art

[0002] At present, mobile communication has become an indispensable and most commonly used way for people to communicate with the outside world, and its terminal devices have become popular among almost everyone, among which the most widely used are mobile smartphones. How to effectively, safely and conveniently transmit the electromagnetic wave signals of mobile smart terminals brought underwater to the surface and directly reach the Internet and other general communication systems has become a new problem.

[0003] The main method of the existing technical solution is to directly electrically connect one end of the communication cable to the physical interface of the underwater mobile intelligent terminal. The underwater mobile intelligent terminal transmits the electrical signal to the surface through the communication cable, and then the operator on the water processes and connects to the Internet. The biggest problem and disadvantage of this technology is that the cable must be retracted and released by the operator on the water. When the underwater environment is more complicated, in order to avoid and handle the entanglement and pulling of the cable and the underwater objects, one or more people are required to maintain the cable underwater. Even so, the person carrying the underwater mobile intelligent terminal is still in a relatively unsafe state, and its mobility is limited by the surface personnel. The safety and mobility of personnel and equipment during the entire operation are low, and the operating cost is high (multi-person collaboration is required). Therefore, it is not widely used and can hardly be used for general personal consumption. Summary of the invention

[0004] In view of the background technology, it is necessary for the present invention to provide a device that can effectively, safely and conveniently transmit the electromagnetic wave signal of a mobile smart terminal brought underwater to the water surface and directly reach the Internet and other general communication systems.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A device for a mobile communication terminal to exchange information underwater through electromagnetic waves, comprising an electromagnetic wave transceiver unit, a cable reel and a fixing bracket; the electromagnetic wave transceiver unit is used to realize wireless information exchange between the device and the mobile intelligent terminal through the antenna contained therein; the cable reel is used to realize the reeling and releasing of the cable, fix the antenna and make it rotate synchronously with the cable reel; the fixing bracket is used to keep the relative position of the mobile intelligent terminal and the device fixed.

[0007] Furthermore, the electromagnetic wave transceiver unit also includes a cable, an antenna base, a waterproof protective cover, a waterproof protective filling body and a filling port sealing cover, the antenna base is used to install the antenna, the positive and negative poles of the cable are electrically connected to the positive and negative poles of the antenna respectively, the waterproof protective cover is arranged on the side of the antenna base where the antenna is provided to cover the antenna, and the side wall of the waterproof protective cover and the antenna base are matched with zero clearance, the antenna is located in the enclosed space formed by the antenna base and the waterproof protective cover, the waterproof protective filling body is injected into the enclosed space from the filling port of the waterproof protective cover, and the filling port sealing cover is used to seal the filling port.

[0008] Preferably, the antenna is a PCB board-mounted antenna, and the PCB board where the PCB board-mounted antenna is located is adjacent to the inner surface of the waterproof protective cover.

[0009] Furthermore, the cable is located on the other side of the antenna base opposite to the PCB board antenna, one end of the cable passes through the antenna base and is electrically connected to the PCB board antenna, and the connection between the cable and the antenna base is in a sealed state.

[0010] Preferably, a surface of the antenna base facing the antenna is provided with a plurality of protrusions and grooves.

[0011] Furthermore, the cable retractable reel includes a reel, the other side of the antenna base is fixed to the end of a reel shaft of the reel, the cable is wound on the reel, and the forward / reverse rotation of the reel realizes the retraction and release of the cable.

[0012] Furthermore, the cable reel includes a reel fixing plate, a rotating transmission plate and a rotating handle. The reel fixing plate is gap-fitted with the outside of the reel, and the rotating transmission plate is arranged on the outside of the reel fixing plate. A first protrusion is provided at the center of the reel, and the first protrusion passes through the reel fixing plate and is fixedly fitted with the rotating transmission plate. The rotating handle is fixedly fitted with the rotating transmission plate. When the reel fixing plate is fixed, the rotating handle is rotated, and the antenna base and the reel can be rotated forward / reverse relative to the reel fixing plate under the transmission of the rotating transmission plate.

[0013] Preferably, a circular groove is provided in the center of the reel, the circular groove is located in the reel, a circular protrusion is provided in the center of the reel fixing plate, the reel and the reel fixing plate are clearance-matched through the circular groove and the circular protrusion; the first protrusion is located in the center of the circular groove, a through hole is provided in the center of the circular protrusion, and the first protrusion passes through the through hole to be fixedly matched with the rotating transmission plate.

[0014] Preferably, the inner surface of the reel fixing plate is provided with a plurality of second protrusions, which are gap-matched with the surface of the reel, and the reel fixing plate is provided with a plurality of first through-holes along the circumferential direction; the rotating transmission plate is provided with a plurality of third protrusions, which are gap-matched with the surface of the reel fixing plate, and the rotating transmission plate is provided with a plurality of second through-holes along the circumferential direction.

[0015] Preferably, the cable reel further comprises a cable guide, which is fixedly connected or integrated with the reel fixing plate, and is a hollow frame-shaped cable guide, comprising two opposing connecting rods, the connecting rod surfaces are coated with damping rubber, the minimum spacing between the outer surfaces of the damping rubber layers of the two connecting rods is slightly smaller than the outer diameter of the cable, and one end of the cable passes through the cable guide. The purpose of such a design is to prevent the cable from being loosened and causing the cable to overflow and be clamped when the cable is retracted.

[0016] Furthermore, the fixed bracket includes a left / right handle, an upper connecting rod, a lower connecting rod and a left / right connecting arm, the two ends of the upper connecting rod are used to fix the left and right sides of the upper part of the waterproof mobile intelligent terminal or its waterproof protective shell, the lower connecting rod is used to limit the lower end of the waterproof mobile intelligent terminal or its waterproof protective shell, and the two ends of the upper connecting rod and the lower connecting rod are respectively fixedly combined with the left / right handle.

[0017] Preferably, the fixing bracket further comprises an upper pressing plate and a lower pressing plate, wherein the upper pressing plate is fixed to the outer surface of the upper connecting rod, and the lower pressing plate is fixed to the outer surface of the lower connecting rod.

[0018] Preferably, the cable reel also includes a rotation control trigger, one end of the rotation control trigger is connected to the upper connecting rod via a rotating shaft, a protrusion is provided at the end of the rotation control trigger away from the rotating shaft, a pressing end is provided at a position of the rotation control trigger close to the rotating shaft, a spring is provided between the position between the pressing end of the rotation control trigger and the protrusion and the upper connecting rod, a plurality of inclined protrusions are provided on the surface periphery of the antenna base, the inclined protrusions and the protrusions form an inverted fit relationship with the protrusions of the rotation control trigger, and when the rotation control trigger is not depressed, it can only rotate in the direction of retracting the cable and cannot release the cable; after the rotation control trigger is depressed, the cable can be retracted and released.

[0019] Furthermore, one end of the left / right connecting arm is fixedly connected to the reel fixing plate, and the other end is fixedly connected to one end of the left / right grip, so that the surface of the waterproof protective cover and the corresponding surface of the waterproof mobile intelligent terminal or its waterproof protective shell form a close distance and gap relationship, thereby avoiding friction between the waterproof mobile intelligent terminal or its waterproof protective shell when the reel rotates, and at the same time, the protrusion of the rotation control trigger is matched with the surface of the antenna base without gap through the spring.

[0020] Preferably, the left / right handle is provided with a plurality of embedded metal nuts for providing a connection and fixing interface for other accessory devices.

[0021] The edge of the antenna base is configured as a toothed structure, and the user can hold the bracket handle with one hand underwater and move the toothed edge of the antenna base with fingers, thereby realizing the recovery of the cable without rotating the rotating handle.

[0022] The bottom of the left / right handle has two fulcrums respectively, and the four fulcrums of the left / right handle are located in the same horizontal plane. The structure can stably place the device on land or underwater.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention uses a cable and an underwater mobile intelligent terminal to exchange information in an electromagnetic wave wireless connection mode, and on this basis adopts an underwater cable retractable structure, thus largely solving the problem of serious lack of safety and mobility. Combined with an unmanned device on the surface, it can be operated by one person, and the entire device adopts an easy-to-store portable design, making the product more suitable for ordinary consumers.

[0025] The present invention is combined with unmanned devices on water, which enables individual consumers to carry their own mobile smart terminals to connect to the Internet underwater, and can conduct real-time interactive interaction with good safety and mobility. The scope of application and scenarios (market boundaries) are greatly expanded, and it has broad market prospects and good social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a three-dimensional structure in which a device for exchanging information with a mobile communication terminal underwater through electromagnetic waves is connected to a mobile terminal according to an embodiment of the present invention;

[0027] Figure 2 Schematic diagram of the structure of the electromagnetic wave transceiver unit according to an embodiment of the present invention, in which the antenna base and the waterproof protective cover are in a cutaway state;

[0028] Figure 3This is a schematic diagram of the structural relationship between the cable, PCB onboard antenna and antenna base. In the figure, the antenna base on the right is cut open and removed;

[0029] Figure 4 It is a schematic diagram of the structural relationship between the antenna base and the PCB board antenna;

[0030] Figure 5 This is a schematic diagram of the structural relationship between the antenna base, the PCB onboard antenna and the waterproof protective cover. In the figure, the waterproof protective cover on the left is shown through;

[0031] Figure 6 It is a schematic cross-sectional structure diagram of the combination of the electromagnetic transceiver unit and the cable reel according to an embodiment of the present invention;

[0032] Figure 7 It is a schematic diagram of the structural relationship between the reel, the reel fixing plate and the rotating transmission plate;

[0033] Figure 8 It is a schematic diagram of the three-dimensional structure of the device according to an embodiment of the present invention from a rear perspective;

[0034] Fig. 9 is a schematic diagram of the three-dimensional structure of the fixed bracket;

[0035] Fig.10 It is a schematic diagram of a three-dimensional structure after the device of an embodiment of the present invention is combined with a mobile communication terminal;

[0036] Fig.11 It is a schematic diagram of an exploded view of a device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with specific implementation modes.

[0038] This embodiment provides a device for a mobile communication terminal to exchange information underwater through electromagnetic waves, such as Figure 1 As shown, it consists of an electromagnetic wave transceiver unit 1, a cable reel 2 and a fixed bracket 3.

[0039] The function of the electromagnetic wave transceiver unit 1 is to realize bidirectional conversion between electromagnetic waves and alternating voltage through the PCB onboard antenna it contains, so as to realize information interaction between the device described in this embodiment and the mobile intelligent terminal 4 in a wireless manner, which is also the basic condition for the underwater operator to retract / release the cable.

[0040] The functions of the cable reel 2 are: to realize the reeling and releasing of the cable; to fix the PCB board-mounted antenna and make it rotate synchronously with the cable reel.

[0041] The function of the fixed bracket 3 is to keep the relative position of the mobile intelligent terminal 4 and the device fixed; it is also the handle for the operator to hold the device; and it is also a fixed bracket for other external accessories (such as diving lights, camera lenses, buoyancy arms, etc.).

[0042] The details are as follows:

[0043] like Figure 2 The electromagnetic wave transceiver unit 1 comprises a PCB board antenna 11, a cable 12, an antenna base 13, a waterproof protective cover 14 and a filling port sealing cover 16. The antenna base 13 is used to install the PCB board antenna 11, and the positive and negative electrodes at one end of the cable 12 are electrically connected to the positive and negative electrodes of the PCB board antenna 11 respectively. The waterproof protective cover 14 is arranged on one side of the antenna base 13 where the PCB board antenna 11 is arranged, and covers the PCB board antenna 11. The side wall edge of the waterproof protective cover 14 and the surface of the antenna base 13 are matched with zero clearance to achieve waterproof sealing, so that the antenna base 13 and the waterproof protective cover 14 form a closed space, and the PCB board antenna 11 is located in the closed space. The waterproof protective filler 15 is injected into the closed space from the filling port of the waterproof protective cover 14, and the filling port sealing cover 16 is used to seal the filling port.

[0044] like Figure 3 As shown, the antenna base 13 is provided with a circular hole for the one end of the cable 12 to pass through, the inner diameter of the circular hole is slightly smaller than the outer diameter of the insulating protective layer of the cable 12, and the insulating protective layer of the cable 12 has a certain flexibility, so that after the cable 12 passes through the circular hole, the circular hole is in a sealed state. The surface of the PCB board where the PCB board-mounted antenna 11 is located is adjacent to the inner surface of the waterproof protective cover 14, and the outer edge of the waterproof protective cover 14 is embedded in the surface of the antenna base 13, and the connection between the two is zero-clearance fit.

[0045] like Figure 4 As shown, the surface of the antenna base 13 facing the PCB board antenna 11 is provided with a plurality of protrusions 131 to ensure a certain gap between the PCB board antenna 11 and the antenna base 13. At the same time, the surface of the antenna base 13 is also provided with one or more grooves 132. The gaps 131 and the grooves 132 can ensure the smooth filling of the waterproof protective filling body 15.

[0046] like Figure 5As shown, the waterproof protective filler 15 is injected into the enclosed space from the filling port of the waterproof protective cover 14. After the filling is completed, the filling port is sealed by the filling port sealing cover 16, so that the antenna base 13 and the waterproof protective cover 14 are closely matched to form a completely sealed state. The waterproof protective filler 15 is an insulating sealing material, which is irreversibly and permanently solidified by the fluid after a certain period of time. The toothed structure can realize the single-handed toggle of the antenna base 13 to drive the wire drum to rotate and recycle the cable.

[0047] like Figure 6 , 7 As shown, the cable retractable reel is composed of a reel 21, a reel fixing plate 22, a rotating transmission plate 23, a rotating handle 24, a rotating control trigger 27 and a spring 28. The antenna base 13 and the reel end of the reel 21 are fixed together by screws to form an antenna reel assembly, and the cable 12 is located between the antenna base 13 and the reel 21. Specifically, the cable 12 is wound on the reel 21. The reel 21 can be retracted and released by rotating forward / reverse.

[0048] A circular groove 212 is provided in the center of the reel 21 toward the side of the reel fixing plate 22. The circular groove 212 is opened in the reel 211 and is coaxial with the reel 211. A circular protrusion 221 matching the circular groove 212 is provided in the center of the reel fixing plate 22. The reel 21 and the reel fixing plate 22 are clearance-matched through the circular groove 212 and the circular protrusion 221.

[0049] The rotating transmission plate 23 is arranged on the outer side of the reel fixing plate 22. A first protrusion is arranged at the center of the circular groove of the reel 21, and a through hole is arranged at the center of the circular protrusion of the reel fixing plate 22. The first protrusion passes through the through hole, so that the reel 21 is fixedly matched with the rotating transmission plate 23, and the rotating handle 24 is fixedly matched with the rotating transmission plate 23. When the reel fixing plate 22 is fixed, the rotating handle 24 is rotated, and the antenna disk assembly can be rotated forward / reverse relative to the reel fixing plate 22 under the transmission of the rotating transmission plate 23.

[0050] The surface of the reel fixing plate 22 facing the reel 21 is provided with a plurality of second protrusions 223, the second protrusions 223 are in clearance with the surface of the reel 21, and the reel fixing plate 22 is provided with a plurality of first through-holes 225 along the circumferential direction; the surface of the rotating transmission plate 23 facing the reel fixing plate 22 is provided with a plurality of third protrusions 231, the third protrusions 231 are in clearance with the surface of the reel fixing plate 22, and the rotating transmission plate 23 is provided with a plurality of second through-holes 232 along the circumferential direction. The above features are for reducing the rotation friction of the device, and also for dealing with the influence of mud, sand and other floating objects in the underwater environment on the rotation operation and the clean water flushing after the use of the device, so as to extend the life of the device.

[0051] like Figure 8 As shown, the reel fixing plate 22 is provided with a cable guide groove 25, which is fixedly connected or integrated with the reel fixing plate 22. The opening shape of the cable guide groove 25 is rectangular, and the long side faces the reel space formed by the antenna base 13 and the reel 21, ensuring that the cable is arranged relatively neatly when the cable is recovered; the damping glue 26 is wrapped on the connecting rods on the opposite sides of the cable guide groove 25, and the distance between the two damping glues 26 is slightly smaller than the outer diameter of the cable 12, so as to achieve a suitable retraction / release damping effect.

[0052] like Fig. 9 As shown, the fixed bracket is composed of a left / right handle 31, an upper connecting rod 32, an upper pressure plate 33, a lower connecting rod 34, a lower pressure plate 35 and a left / right connecting arm 36. The two ends of the upper connecting rod 32 and the lower connecting rod 34 are fixedly combined with the left / right handle 31 to form a stable whole, and the four supporting points at the lower end of the left / right handle 31 are in the same plane, so that the device can be placed stably. The two ends of the upper connecting rod 32 are used to fix the left and right sides of the upper part of the waterproof mobile intelligent terminal 4 or its waterproof protective shell 41, and the lower connecting rod 33 is used to limit the lower end of the waterproof mobile intelligent terminal 4 or its waterproof protective shell 41. The left and right ends of the upper connecting rod 32 and the lower connecting rod 33 are fixedly combined with the left / right handle 11 respectively. The upper pressure plate 33 is fixed to the outer surface of the upper connecting rod 32 by screws, and the lower pressure plate 35 is fixed to the outer surface of the lower connecting rod 34 by screws, so that the waterproof mobile intelligent terminal 4 or its waterproof protective shell 41 and the mechanism are completely fixed in three dimensions.

[0053] like Figure 8 , 10As shown in Figure 11, one end of the rotation control trigger 27 is connected to the upper connecting rod 32 through a rotating shaft, and a protrusion 272 is provided at the end of the rotation control trigger 27 away from the rotating shaft, and a pressing portion 271 is provided at a position of the rotation control trigger 27 close to the rotating shaft, and a spring 28 is provided between the position between the pressing portion 271 and the protrusion 272 of the rotation control trigger and the upper connecting rod 32, and a plurality of inclined protrusions are provided on the surface periphery of the antenna base 13, and the inclined protrusions and the protrusions form an inverted fit relationship, and when the rotation control trigger 27 is not pressed, it can only rotate in the direction of retracting the cable 12, and the cable 12 cannot be released. After the rotation control trigger 27 is pressed, the cable 12 can be retracted and released. The purpose of this design is to control the release of the cable 12 as needed to avoid entanglement caused by excessive release of the cable 12, which may bring safety hazards to the device and underwater operators. At the same time, this design conforms to the habit of people holding the left / right handle 3 with both hands and pressing the trigger with the index finger, and can achieve single-handed control of the release of the cable 12. Fig.11 As can be seen in the figure, various adjacent components are fixedly connected by screws 5.

[0054] like Fig.10 As shown, the surface shapes and sizes of the upper connecting rod 32 and the lower connecting rod 34 respectively match the surface shapes of the waterproof mobile intelligent terminal 4 or its waterproof protective shell 41, so that the two can be relatively fixed in the horizontal and vertical directions after being combined.

[0055] One end of the left / right connecting arm 36 is fixedly connected to the corresponding position on the reel fixing plate 26, and the other end is fixedly connected to one end of the left / right grip 31, so that the surface of the waterproof protective cover 14 of the electromagnetic wave transceiver unit and the corresponding surface of the waterproof mobile intelligent terminal 4 or its waterproof protective shell 41 form a close distance and gap relationship to ensure that the electromagnetic wave signal attenuation is minimized; at the same time, the protrusion at one end of the rotating control trigger 27 is in a gap-free fit with the surface of the antenna base 1 to ensure that the rotating control trigger 27 effectively controls the release of the cable.

[0056] like Fig. 9 As shown, the left / right handle 31 is provided with a plurality of inlaid metal nuts as an accessory expansion interface 37, and its function is to provide a connection and fixing interface for accessory devices (such as diving lights, camera lenses, buoyancy arms, etc.).

Claims

1. A device for mobile communication terminals to exchange information underwater through electromagnetic waves, characterized in that: It includes an electromagnetic wave transceiver unit, a cable reel and a fixed bracket; the electromagnetic wave transceiver unit is used to realize wireless information interaction between the device and the mobile intelligent terminal through the antenna contained therein; the cable reel is used to realize the reeling and releasing of the cable, fix the antenna and make it rotate synchronously with the cable reel; the fixed bracket is used to keep the relative position of the mobile intelligent terminal and the device fixed.

2. The device according to claim 1, characterized in that The electromagnetic wave transceiver unit also includes a cable, an antenna base, a waterproof protective cover and a filling port sealing cover. The antenna base is used to install the antenna. The positive and negative poles of the cable are electrically connected to the positive and negative poles of the antenna respectively. The waterproof protective cover is arranged on a side of the antenna base where the antenna is provided to cover the antenna, and there is a zero gap fit between the side wall of the waterproof protective cover and the antenna base. The antenna is located in a confined space formed by the antenna base and the waterproof protective cover. A waterproof protective filler is injected into the confined space from the filling port of the waterproof protective cover. The filling port sealing cover is used to seal the filling port.

3. The device according to claim 2, characterized in that The antenna is a PCB board-mounted antenna, and the PCB board where the PCB board-mounted antenna is located is close to the inner surface of the waterproof protective cover.

4. The device according to claim 3, characterized in that The cable is located on the other side of the antenna base opposite to the PCB board antenna, one end of the cable passes through the antenna base and is electrically connected to the PCB board antenna, and the connection between the cable and the antenna base is in a sealed state.

5. The device according to claim 2, characterized in that A surface of the antenna base facing the antenna is provided with a plurality of protrusions and grooves.

6. The device according to claim 2, characterized in that The cable retractable reel comprises a reel, the other side of the antenna base is fixed to the end of the reel shaft of the reel, the cable is wound on the reel, and the forward / reverse rotation of the reel realizes the retraction and release of the cable.

7. The device according to claim 6, characterized in that The cable reel further includes a reel fixing plate, a rotating transmission plate and a rotating handle. The reel fixing plate is gap-fitted with the outside of the reel, and the rotating transmission plate is arranged on the outside of the reel fixing plate. A first protrusion is provided at the center of the reel, and the first protrusion passes through the reel fixing plate and is fixedly fitted with the rotating transmission plate. The rotating handle is fixedly fitted with the rotating transmission plate. When the reel fixing plate is fixed, the rotating handle is rotated, and the antenna base and the reel can be rotated forward / reverse relative to the reel fixing plate under the drive of the rotating transmission plate.

8. The device according to claim 7, characterized in that A circular groove is provided in the center of the reel, and the circular groove is located in the reel. A circular protrusion is provided in the center of the reel fixing plate, and the reel and the reel fixing plate are clearance-matched through the circular groove and the circular protrusion; the first protrusion is located in the center of the circular groove, and a through hole is provided in the center of the circular protrusion, and the first protrusion passes through the through hole to be fixedly matched with the rotating transmission plate.

9. The device according to claim 8, characterized in that The inner surface of the reel fixing plate is provided with a plurality of second protrusions, which are gap-matched with the surface of the reel, and the reel fixing plate is provided with a plurality of first through holes along the circumferential direction; the rotating transmission plate is provided with a plurality of third protrusions, which are gap-matched with the surface of the reel fixing plate, and the rotating transmission plate is provided with a plurality of second through holes along the circumferential direction.

10. The device according to any one of claims 6 to 9, characterized in that: The cable reel also includes a cable guide, which is fixedly connected to or integrated with the reel fixing plate. The cable guide is a hollow frame, including two opposing connecting rods, and the surfaces of the connecting rods are coated with damping glue. The spacing between the outer surfaces of the damping glue layers of the two connecting rods is slightly smaller than the outer diameter of the cable, and one end of the cable passes through the cable guide.

11. The device according to claim 7, characterized in that The fixed bracket includes a left / right handle, an upper connecting rod, a lower connecting rod and a left / right connecting arm, the two ends of the upper connecting rod are used to fix the left and right sides of the upper part of the waterproof mobile intelligent terminal or its waterproof protective shell, the lower connecting rod is used to limit the lower end of the waterproof mobile intelligent terminal or its waterproof protective shell, the two ends of the upper connecting rod and the lower connecting rod are fixedly connected to the left / right handle respectively, one end of the left / right connecting arm is fixedly connected to the reel fixing plate, and the other end is fixedly connected to one end of the left / right handle respectively.

12. The device according to claim 11, characterized in that The fixing bracket further comprises an upper pressing plate and a lower pressing plate, wherein the upper pressing plate is fixed to the outer surface of the upper connecting rod, and the lower pressing plate is fixed to the outer surface of the lower connecting rod.

13. The device according to claim 11 or 12, characterized in that The cable reel also includes a rotation control trigger, one end of the rotation control trigger is connected to the upper connecting rod via a rotating shaft, a protrusion is provided at the end of the rotation control trigger away from the rotating shaft, a pressing end is provided at a position of the rotation control trigger close to the rotating shaft, a spring is provided between the position between the pressing end of the rotation control trigger and the protrusion and the upper connecting rod, a plurality of inclined protrusions are provided on the surface periphery of the antenna base, the inclined protrusions and the protrusions of the rotation control trigger form an inverted fit relationship, when the rotation control trigger is not pulled down, it can only rotate in the direction of retracting the cable and cannot release the cable, and the cable can be retracted and released after the rotation control trigger is pulled down.

14. The device according to claim 11, characterized in that The left / right handles are provided with a plurality of inlaid metal nuts for providing connection and fixing interfaces for other accessory devices.

15. The device according to claim 1, characterized in that The edge of the antenna base is configured as a tooth-shaped structure.

16. The device according to claim 11, characterized in that The bottom of the left / right handle has two fulcrums respectively, and the four fulcrums of the left / right handle are located in the same horizontal plane. The structure can stably place the device on land or underwater.

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