Underwater target positioning device

Abstract

The utility model relates to an underwater target positioning device, which solves the problems of high cost, complexity in installation and maintenance and inconvenience in use of the existing acoustic positioning equipment. The device comprises a positioning assembly and an adsorption assembly which are separably connected, the positioning assembly comprises a shell, a positioning module, a line roller, a line, a hook ring, a compression spring, counterweight foam, a string handle and a connecting line, the adsorption assembly comprises a magnet, a carbon fiber tube, an adjusting piece, a claw hook and a torsion spring, and when the magnet adsorbs a target, the magnet slides along the adjusting piece; the three grabbers are driven to rotate to be separated from the hook ring through the connecting line, the compression spring bounces off the adsorption assembly, the positioning assembly emerges from the water surface, and the positioning module sends out a position signal. According to the underwater target positioning device, the positioning assembly can emerge from the water surface as long as the magnet is attracted to the target, the positioning module sends a position signal to position the underwater target, only the grabber needs to be pushed into the hook ring when the underwater target positioning device is used next time, and the underwater target positioning device is convenient and rapid to use, simple and reliable in structure, lower in cost and easy to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to underwater target positioning technical field, in particular to underwater target positioning device. BACKGROUND

[0002] When exploring underwater resources, it is usually necessary to locate them first, but water medium has strong absorption effect on radio waves, so traditional land-based positioning technology (such as GPS, radio frequency signal) is almost completely ineffective underwater. The current mainstream solution relies on acoustic positioning system, and acoustic positioning is an effective means for general underwater positioning, which requires the installation of acoustic positioning equipment on the water surface and underwater, and uses the time difference of arrival (TDOA) of sound waves to calculate the target position. For example, the ultra-short baseline (USBL) system can achieve centimeter-level positioning accuracy, but it relies on a complex array of underwater acoustic transducers and high-precision time synchronization equipment, and the cost of a single system usually exceeds hundreds of thousands of yuan, and it needs to be carried by a professional ship and maintained by an operator. In view of the problems of complex design, cumbersome installation, inconvenient use and high maintenance cost of acoustic positioning equipment, it is necessary to design a low-cost and convenient underwater target positioning device. SUMMARY

[0003] To solve the problems of high cost, complex installation and maintenance, and inconvenient use of existing acoustic positioning equipment, the utility model provides an underwater target positioning device, which only needs to be adsorbed on the target when used, and the positioning assembly can automatically float out of the water surface, and the built-in positioning module sends a position signal to realize the positioning of the underwater target. The device is simple, convenient and low in cost.

[0004] The technical scheme adopted by the utility model is:

[0005] An underwater target positioning device, comprising a positioning assembly and an adsorption assembly connected separately.

[0006] The positioning assembly comprises a shell, a positioning module, a line roller, a line, a hook ring, a compression spring, a counterweight foam, a string handle and a connecting line, the positioning module and the line roller are installed inside the shell, one end of the line is wound on the line roller, the other end is connected with one end of the carbon fiber pipe in the adsorption assembly, the front end of the shell is provided with the hook ring and the compression spring, the counterweight foam for adjusting the overall density of the positioning assembly is arranged inside the shell, and the string handle is installed at the rear end of the shell.

[0007] The adsorption assembly comprises a magnet, a carbon fiber tube, an adjusting piece, three claw hooks and a torsion spring, the three claw hooks are circumferentially distributed on one end of the carbon fiber tube and are kept in an outwardly open state under the action of the torsion torque of the torsion spring, the three claw hooks and the hook ring form a self-locking connection structure, the contact surface of each claw hook and the hook ring is designed such that the force action line is below the rotation center of the claw hook to form a self-locking angle, a guide angle is arranged on the end of each claw hook, the claw hook can be pushed into the hook ring under the guidance of the guide angle when the claw hook is at the maximum opening angle, one connecting line is fixed to the end of each claw hook away from the rotation center, the three connecting lines of the three claw hooks are gathered into one connecting line and then connected with the magnet, the other end of the carbon fiber tube is fixed with the adjusting piece, and the magnet is slidingly arranged in the adjusting piece.

[0008] When the magnet adsorbs the target, the magnet slides along the adjusting piece and drags the connecting line to move, thereby driving the three claw hooks to rotate to separate from the hook ring, the compression spring opens the adsorption assembly, the positioning assembly is connected with the adsorption assembly through the line, the positioning assembly floats out of the water surface under the action of the buoyancy, and the positioning module sends a position signal.

[0009] The underwater target positioning device has the advantages that:

[0010] The underwater target positioning device provided by the utility model only needs to adsorb the magnet in the adsorption assembly to the target, the positioning assembly can float out of the water surface, the positioning module can send a position signal for underwater target positioning, and the claw hook in the adsorption assembly can be pushed into the hook ring in the positioning assembly next time, so that the underwater target positioning device is convenient and fast to use, simple and reliable in structure, low in cost and easy to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly describe the advantages, characteristics and technical processes of the utility model, the drawings used in the embodiments will be described in detail below.

[0012] Figure 1 Fig. 1 is a schematic structural view of the underwater target positioning device in the connected state of the positioning assembly and the adsorption assembly;

[0013] Figure 2 Fig. 4 is a schematic structural view of the hook ring and the claw hook in the self-locking cooperation state.

[0014] Mark 101, housing; 102, positioning module; 103, line roller; 104, line; 105, hook ring; 106, compression spring; 107, counterweight foam; 108, string handle; 109, connecting line;

[0015] 201, magnet; 202, carbon fiber tube; 203, adjusting piece; 204, claw hook; 205, torsion spring. DETAILED DESCRIPTION

[0016] To make the advantages, features, and technical processes of this utility model clearer, a detailed description will be provided in conjunction with the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] In one of the examples, such as Figure 1 As shown, this utility model provides an underwater target positioning device, which mainly consists of a positioning component and an adsorption component that can be detachably connected. The positioning component is used to float to the surface of the water and send out a position signal, while the adsorption component is used to adsorb onto the underwater target.

[0018] The positioning assembly mainly consists of a housing 101, a positioning module 102, a thread roller 103, a thread 104, a hook ring 105, a compression spring 106, a counterweight foam 107, a handle 108, and a connecting line 109. The thread roller 103 and the positioning module 102 are installed inside the housing 101. One end of the thread 104 is wound around the thread roller 103, and the other end of the thread 104 is connected to one end of the carbon fiber tube 202 in the adsorption assembly. The handle 108 is installed at the rear end of the housing 101 and is used to fix the positioning device to the carrier. It should be noted that the handle 108 can also be implemented using other mounting interface forms. A hook ring 105 and a compression spring 106 are installed at the front end of the housing 101. The hook ring 105 hooks with the three claw hooks 204 in the adsorption assembly, preventing them from separating. The compression spring 106 is used to eject the adsorption assembly when it adsorbs the target. The counterweight foam 107 is installed inside the housing 101 to adjust the overall density of the positioning component. Since the overall density of the underwater target positioning device is greater than that of water, while the overall density of the positioning component after installing the counterweight foam 107 is less than that of water, the positioning component can float after separating from the adsorption component. Optionally, the counterweight foam 107 is arranged around the positioning module 102, which also serves to protect the positioning module 102.

[0019] Furthermore, the housing 101 adopts a split structure, with the upper and lower parts fixed together by the base of the shank 108 and screws. This split design of the housing 101 facilitates manufacturing and installation.

[0020] Furthermore, the positioning module 102 is used to send out position signals to realize the positioning of underwater targets. Therefore, the positioning module 102 can be implemented using existing mature positioning technologies. For example, the positioning module 102 can be implemented using a Beidou positioning module or a GPS module. Any module that can realize the positioning function can be applied in this utility model, which will not be elaborated here.

[0021] The adsorption assembly is mainly composed of a magnet 201, a carbon fiber tube 202, an adjusting member 203, three claw hooks 204 and a torsion spring 205. The three claw hooks 204 are circumferentially distributed on one end of the carbon fiber tube 202, and each claw hook 204 always keeps an outwardly open state under the torque of the torsion spring 205. The three claw hooks 204 and the hook ring 105 form a self-locking connection structure. The connection and separation of the positioning assembly and the adsorption assembly is realized through the contact of the claw hooks 204 and the hook ring 105. The contact angle of the claw hooks 204 and the hook ring 105 should have a self-locking function, and the self-locking function is realized through the force line angle of the contact of the claw hooks 204 and the hook ring 105. The contact surface of each claw hook 204 and the hook ring 105 is designed to have a force line below the rotation center of the claw hook 204, forming a self-locking angle. The end of each claw hook 204 is provided with a guide angle. When the claw hook 204 is at the maximum opening angle, it can be smoothly pushed into the hook ring 105 under the guidance of the guide angle. One end of each claw hook 204 away from the rotation center is fixed with a connecting line. The three connecting lines of the three claw hooks 204 converge into one connecting line 109. The other end of the carbon fiber tube 202 is fixed with the adjusting member 203. The magnet 201 is slidingly arranged in the adjusting member 203. When the magnet 201 adsorbs the target, the magnet 201 moves in the adjusting member 203, pulls the three claw hooks 204 to close at the same time through the connecting line 109, and the claw hook 204 is unhooked from the hook ring, so that the adsorption assembly and the positioning assembly are separated. In order to further ensure the reliability and smoothness of the sliding of the magnet 201, the adjusting member 203 provides a sliding track for the magnet 201, and the magnet 201 can move along the sliding track.

[0022] The three claw hooks 204 and the hook ring 105 form a self-locking connection structure. When designing the hook ring 105 and the claw hook 204, the reliability of the cooperation should be fully considered. When there is no adsorbed target, the positioning assembly should be firmly connected with the adsorption assembly, that is, the claw hook 204 is not unhooked, which is guaranteed by designing the angle of the hook ring 105 and the claw hook 204. When designing the self-locking angle, the force line F should be below the rotation center C of the claw hook 204, as shown in Figure 2 When the two assemblies are separated by an unknown external force, the claw hook 204 always keeps an open state under the force to the oblique upper side.

[0023] The positioning assembly and the adsorption assembly are connected together through the claw hook 204 and the hook ring 105, and the claw hook 204 has self-locking property when being connected with the hook ring 105. When the magnet 201 adsorbs the target, the magnet 201 slides in the adjusting piece 203 and drags the connecting line 109 to move, thereby driving the three claw hooks 204 to rotate around the respective rotation centers, the claw hook 204 is separated from the hook ring 105, the compression spring 106 on the positioning assembly drives the adsorption assembly to be separated, the positioning assembly floats up under the action of the buoyancy, the positioning assembly and the adsorption assembly are connected through the line 104 on the line roller 103, the positioning assembly floats out of the water, and the positioning module 102 sends a position signal, so that the underwater target is positioned.

[0024] Further, one end of the claw hook 204 on the carbon fiber pipe 202 is further provided with a vertical plate, the vertical plate is provided with a hole position for installing the claw hook 204, the number of the hole positions can be set according to actual needs, and the vertical plate abuts against one end of the compression spring 106 when the positioning assembly and the adsorption assembly are not separated, thereby helping the compression spring 106 to drive the adsorption assembly to be separated.

[0025] The main purpose of the portable underwater target positioning device is to adsorb the magnet in the adsorption assembly to the target, the positioning assembly can float out of the water, the positioning module can send a position signal to position the underwater target, the claw hook in the adsorption assembly is pushed into the hook ring in the positioning assembly next time, and the portable underwater target positioning device is convenient, fast, simple and reliable, has lower cost and is easy to maintain.

[0026] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that the combinations are within the scope of the present application.

[0027] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An underwater target positioning device, characterized in that, Includes a detachable positioning component and an adsorption component; The positioning assembly includes a housing (101), a positioning module (102), a roller (103), a line (104), a hook ring (105), a compression spring (106), a counterweight foam (107), a shank (108), and a connecting line (109). The positioning module (102) and the roller (103) are installed inside the housing (101). One end of the line (104) is wound around the roller (103), and the other end is connected to one end of the carbon fiber tube (202) in the adsorption assembly. The front end of the housing (101) is provided with a hook ring (105) and a compression spring (106). The counterweight foam (107) used to adjust the overall density of the device is set inside the housing (101). The shank (108) is installed at the rear end of the housing (101). The adsorption assembly includes a magnet (201), a carbon fiber tube (202), an adjusting component (203), claw hooks (204), and a torsion spring (205). Three claw hooks (204) are evenly distributed around one end of the carbon fiber tube (202) and remain open under the torque of the torsion spring (205). The three claw hooks (204) form a self-locking connection with the hook ring (105). The contact surface between each claw hook (204) and the hook ring (105) is designed such that the line of force is located below the rotation center of the claw hook (204). A self-locking angle is formed, and a guide angle is provided at the end of each claw hook (204). When the claw hook (204) is at its maximum opening angle, it can be pushed into the hook ring (105) under the guidance of the guide angle. A connecting line is fixed at one end of each claw hook (204) away from the rotation center. The three connecting lines of the three claw hooks (204) converge into a connecting line (109) and then connect to the magnet (201). An adjustment piece (203) is fixed at the other end of the carbon fiber tube (202). The magnet (201) is slidably set in the adjustment piece (203). When the magnet (201) attracts the target, the magnet (201) slides along the adjustment part (203) and pulls the connecting line (109) to move, thereby driving the three claw hooks (204) to rotate to disengage from the hook ring (105). The compression spring (106) pops open the adsorption assembly. The positioning assembly is connected to the adsorption assembly through the line (104). The positioning assembly floats out of the water under the action of buoyancy, and the positioning module sends out a position signal.

2. The underwater target positioning device according to claim 1, characterized in that, The housing (101) adopts an upper and lower split structure and is fixed by the base of the shank (108) and screws.

3. An underwater target positioning device according to claim 1 or 2, characterized in that, The counterweight foam (107) is placed around the positioning module (102).

4. An underwater target positioning device according to claim 1 or 2, characterized in that, A vertical plate is provided at one end of the claw hook (204) on the carbon fiber tube (202). The vertical plate has holes for installing three claw hooks (204). When the positioning component and the adsorption component are not separated, the vertical plate abuts against one end of the compression spring (106).

5. An underwater target positioning device according to claim 1 or 2, characterized in that, The adjusting element (203) provides a sliding track for the magnet (201).

6. An underwater target positioning device according to claim 1 or 2, characterized in that, The positioning module (102) is either a Beidou positioning module or a GPS module.

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