Self-adaptive underwater adsorption device and underwater fishing device

Abstract

The invention provides a self-adaptive underwater adsorption device and an underwater salvaging device. The self-adaptive underwater adsorption device comprises an adsorption mechanism, a jet device and a spraying pump, the jet device is provided with a first input end, a second input port and an output port, the output end of the spraying pump is connected with the first input port of the jet device, the second input port of the jet device is connected with the inner space of the adsorption mechanism through a pipeline, and high-pressure water flow is generated at the output end of the jet device through the spraying pump. Therefore, negative pressure is generated in the adsorption mechanism to realize a reliable adsorption function.

Description

Technical Field

[0001] The present invention relates to the technical field of marine equipment, and in particular to an adaptive underwater adsorption device and an underwater salvage device. Background Art

[0002] A suction cup is a tool that uses the difference in internal and external atmospheric pressure to absorb onto an object, and is used in many fields. Patent document CN112279056A discloses a claw body and an underwater salvaging device, wherein the claw body includes a claw body, a propeller is provided on the claw body, and the propeller includes a front and rear propeller and a lateral propeller. A clamping and locking mechanism is fixedly provided on the inner wall of the claw body. The clamping and locking mechanism can be composed of a fixed seat, a hydraulic motor, a rotating sleeve and a threaded nail. The clamping and locking mechanism can also be composed of a connecting seat, a suction cup, a water pipe, a suction cup swing mechanism and a water pump. The suction cup swing mechanism includes a rotating shaft, a limiting end cover and a rotating shaft seat. In this patent document, the suction cup sucks the inside of the suction cup through a water pump, thereby forming a negative pressure inside the suction cup, and adsorbs on the surface of the salvage target to increase the locking force on the target.

[0003] The disadvantages of this method are: the efficiency of suction through water pump is low, and the negative pressure effect generated is poor, so the adsorption force provided is limited; during the lifting process of the salvage device, the target will drive the suction cup downward under the action of gravity and the suction cup will become unstable, further reducing the reliability of the suction cup during the salvage process. Summary of the invention

[0004] In view of the defects in the prior art, the object of the present invention is to provide an adaptive underwater adsorption device and an underwater salvage device.

[0005] According to the present invention, an adaptive underwater adsorption device is provided, comprising: an adsorption mechanism, an ejector and a jet pump;

[0006] The ejector has a first input end, a second input port and an output port. The output end of the jet pump is connected to the first input port of the ejector, and the second input port of the ejector is connected to the internal space of the adsorption mechanism through a pipeline. The jet pump generates a high-pressure water flow at the output end of the ejector, thereby generating a negative pressure in the adsorption mechanism to realize the adsorption function.

[0007] Furthermore, the ejector comprises: a nozzle, a suction pipe, a mixing pipe and a diffusion pipe connected in sequence;

[0008] One end of the nozzle is the first input port, and the other end is located in the suction pipe near the mixing tube. The side wall of the suction pipe has a radially extending pipeline, the end of the radially extending pipeline is the second input port, and the end of the diffusion pipe is the output end.

[0009] Furthermore, the diameter of the mixing tube is smaller than the diameters of the nozzle and the suction tube, and the diameter of the diffusion tube gradually increases from the end connected to the mixing tube toward the output port.

[0010] Furthermore, the adsorption mechanism includes: a suction cup, a spring, a suction cup mounting plate, a torsion spring, a limit block and a mounting base;

[0011] The suction cup is movably connected to the suction cup mounting plate, the suction cup and the suction cup mounting plate are elastically connected via the spring, the suction cup mounting plate is hinged to the mounting base, the limit block is connected to the mounting base to limit the rotation angle of the suction cup mounting plate in two rotation directions, and the torsion spring is elastically connected between the suction cup mounting plate and the mounting base to apply a pre-compression force to the suction cup mounting plate.

[0012] Furthermore, the adsorption mechanism also includes a ratchet mechanism;

[0013] The ratchet mechanism comprises: a ratchet, a pawl and a lever;

[0014] The ratchet is connected to the rotating shaft of the suction cup mounting plate and rotates synchronously with the suction cup mounting plate. The pawl is rotatably connected to the mounting base, and the lever is connected to the pawl.

[0015] In a natural state, the end of the pawl abuts against the ratchet teeth of the ratchet wheel, and the shifting rod is used to receive force to drive the end of the pawl to move away from / close to.

[0016] Furthermore, an elastic element is connected between the pawl and the mounting base, and the elastic force of the elastic element causes the end of the pawl to abut against the ratchet teeth of the ratchet wheel.

[0017] Furthermore, the number of the adsorption mechanisms is one or more.

[0018] Furthermore, the plurality of adsorption mechanisms are arranged in a bilaterally symmetrical manner.

[0019] An underwater salvaging device provided according to the present invention comprises a carrier and the self-adaptive underwater adsorption device, wherein the self-adaptive underwater adsorption device is connected to the carrier.

[0020] Furthermore, the carrier includes an underwater vehicle.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention solves the problem of rapid and effective vacuum adsorption of the suction cup underwater by adopting the structure of the ejector, so that the adsorption mechanism can generate vacuum inside the suction cup under the working principle of jet suction, so that it has better underwater target adsorption function and working efficiency.

[0023] The present invention adopts the structure of the adsorption mechanism to solve the problem that the suction cup can adaptively adjust the posture according to the different forms of the adsorption target 5 underwater, thereby achieving the function of the suction cup having good adaptive adsorption target.

[0024] The present invention adopts the structure of the ratchet mechanism, which solves the problem that the suction cup moves downward under gravity and becomes unstable during the process of adsorbing the target and lifting it up, thereby achieving the function of the suction cup being able to stably and reliably adsorb the target. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 It is a structural schematic diagram of the adaptive underwater adsorption device;

[0027] Figure 2 is a schematic diagram of the structure of the ejector;

[0028] Figure 3 It is a structural schematic diagram of the adsorption mechanism;

[0029] Figure 4 It is a structural schematic diagram of the ratchet mechanism in the adsorption mechanism;

[0030] Figure 5 This is a schematic diagram of the suction cup layout;

[0031] In the figure:

[0032] 1-carrier; 3-adsorption mechanism; 301-suction cup; 302-spring; 303-suction cup mounting plate; 304-torsion spring; 305-limiting block; 306-mounting base; 307-ratchet mechanism; 308-ratchet; 309-pawl; 310-lever; 4-ejector; 401-nozzle; 402-suction pipe; 403-mixing pipe; 404-diffuser; 5-jet pump; 6-target. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0034] like Figure 1 As shown, the present invention provides an adaptive underwater adsorption device, comprising: an adsorption mechanism 3, an ejector 4 and a jet pump 5, wherein the adsorption mechanism 3, the ejector 4 and the jet pump 5 are all installed on a carrier 1.

[0035] The ejector 4 has a first input end, a second input port and an output port. The output end of the jet pump 5 is connected to the first input port of the ejector 4. The second input port of the ejector 4 is connected to the internal space of the adsorption mechanism 3 through a pipeline. The jet pump 5 generates a high-pressure water flow at the output end of the ejector 4, and generates a negative pressure in the adsorption mechanism 3 to realize the adsorption function. Specifically, the structure of the ejector 4 is as follows: Figure 2 As shown, it includes: a nozzle 401, a suction pipe 402, a mixing pipe 403 and a diffusion pipe 404 connected in sequence on an axis. One end of the nozzle 401 is a first input port, and the other end is located in the suction pipe 402 near the mixing pipe 403. The side wall of the suction pipe 402 has a radially extending pipeline, the end of the radially extending pipeline is a second input port, and the end of the diffusion pipe 404 is an output end.

[0036] The diameter of the mixing tube 403 is smaller than that of the nozzle 401 and the suction tube 402, and is a long and thin tube. The diameter of the diffusion tube 404 gradually increases from the end connected to the mixing tube 403 to the output port. The high-pressure fluid generated by the jet pump 5 enters the mixing tube 403 through the nozzle 401, and in this process, the medium in the suction tube 402 is carried into the mixing tube 403 and then ejected from the diffusion tube 404, thereby generating negative pressure in the adsorption mechanism 3 connected to the suction tube 402 to complete the adsorption.

[0037] like Figure 3 As shown, the adsorption mechanism 3 includes: a suction cup 301 , a spring 302 , a suction cup mounting plate 303 , a torsion spring 304 , a limit block 305 and a mounting base 306 .

[0038] The suction cup 301 is movably connected to the suction cup mounting plate 303, and a spring 302 is elastically connected between the two, so that the suction cup 301 has an up and down stroke adjustment function under the action of the spring 302, so that the suction cup 301 has a buffer function when contacting the target 6. The suction cup mounting plate 303 is hinged to the mounting base 306, and the limit block 305 is connected to the mounting base 306 to limit the rotation angle of the suction cup mounting plate 303 in two rotation directions. The torsion spring 304 is elastically connected between the suction cup mounting plate 303 and the mounting base 306 to apply a pre-compression force to the suction cup mounting plate 303.

[0039] When the adsorption mechanism 3 moves downward and contacts the target 6, the suction cup 301 rotates upward under the support of the surface of the target 6 until it contacts the target 6. Figure 3At this time, if the carrier 1 is lifted, the suction cup 301 will rotate downward under the influence of the gravity of the target 6 until it contacts the target 6. Figure 3 When the limit block 305 in the lower middle part is lifted up, the suction cup 301 has completed the adsorption action. If it rotates again at this time, it may cause the adsorption to fail and separate from the target 6. In order to avoid this situation, the present invention further provides a ratchet mechanism 307 on the adsorption mechanism 3.

[0040] like Figure 4 As shown, the ratchet mechanism 307 includes: a ratchet 308, a pawl 309 and a lever 310. The ratchet 308 is connected to the rotating shaft of the suction cup mounting plate 303 and rotates synchronously with the suction cup mounting plate 303. The pawl 309 is rotatably connected to the mounting base 306, and the lever 310 is connected to the pawl 309. In a natural state, the end of the pawl 309 abuts against the ratchet teeth of the ratchet 308, and the lever 310 is used to drive the end of the pawl 309 away from / close to the ratchet 308. Among them, an elastic element is connected between the pawl 309 and the mounting base 306, and the end of the pawl 309 abuts against the ratchet teeth of the ratchet 308 through the elastic force of the elastic element. Through the unidirectional rotation function of the ratchet mechanism 307, the suction cup 301 is mechanically locked during the lifting process after the suction is completed, and will no longer rotate due to the influence of the gravity of the target 6, thereby eliminating the problem of instability of the suction cup 301. When the one-way rotation function needs to be released, the lever 310 is driven to move the pawl 309 away from the ratchet 308, and then the suction cup 301 is reset under the action of the torsion spring 304, and the lever 310 is reset to contact the ratchet 308 under the elastic force of the elastic element.

[0041] In the present invention, the adsorption mechanism 3 can be configured with different numbers and combinations of adsorption devices according to different salvage targets to achieve the best target salvage efficiency. Common configuration methods include matrix composition methods such as Figure 5 Several left-right symmetrical arrangements are shown, including a matrix layout and a center + surrounding dispersed layout.

[0042] The present invention also provides an underwater salvaging device, comprising a carrier 1 and the above-mentioned adaptive underwater adsorption device, wherein the adaptive underwater adsorption device is connected to the carrier 1, and the carrier 1 may be an underwater vehicle.

[0043] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An adaptive underwater adsorption device, characterized in that: include: Adsorption mechanism (3), ejector (4) and jet pump (5); The ejector (4) has a first input end, a second input port and an output port; the output end of the jet pump (5) is connected to the first input port of the ejector (4); the second input port of the ejector (4) is connected to the internal space of the adsorption mechanism (3) via a pipeline; the jet pump (5) generates a high-pressure water flow at the output end of the ejector (4), thereby generating a negative pressure in the adsorption mechanism (3) to realize the adsorption function.

2. The adaptive underwater adsorption device according to claim 1, characterized in that: The ejector (4) comprises: a nozzle (401), a suction pipe (402), a mixing pipe (403) and a diffusion pipe (404) which are connected in sequence; One end of the nozzle (401) is the first input port, and the other end is located in the suction pipe (402) close to the mixing pipe (403). The side wall of the suction pipe (402) has a radially extending pipeline, the end of the radially extending pipeline is the second input port, and the end of the diffusion pipe (404) is the output end.

3. The adaptive underwater adsorption device according to claim 2, characterized in that: The diameter of the mixing tube (403) is smaller than the diameters of the nozzle (401) and the suction tube (402), and the diameter of the diffusion tube (404) gradually increases from the end connected to the mixing tube (403) toward the output port.

4. The adaptive underwater adsorption device according to claim 1, characterized in that: The adsorption mechanism (3) comprises: a suction cup (301), a spring (302), a suction cup mounting plate (303), a torsion spring (304), a limit block (305) and a mounting base (306); The suction cup (301) is movably connected to the suction cup mounting plate (303); the suction cup (301) and the suction cup mounting plate (303) are elastically connected via the spring (302); the suction cup mounting plate (303) is hinged to the mounting base (306); the limit block (305) is connected to the mounting base (306) to limit the rotation angle of the suction cup mounting plate (303) in two rotation directions; the torsion spring (304) is elastically connected between the suction cup mounting plate (303) and the mounting base (306) to apply a pre-compression force to the suction cup mounting plate (303).

5. The adaptive underwater adsorption device according to claim 1, characterized in that: The adsorption mechanism (3) further comprises a ratchet mechanism (307); The ratchet mechanism (307) comprises: a ratchet (308), a pawl (309) and a lever (310); The ratchet wheel (308) is connected to the rotating shaft of the suction cup mounting plate (303) and rotates synchronously with the suction cup mounting plate (303); the pawl (309) is rotatably connected to the mounting base (306); and the lever (310) is connected to the pawl (309); In a natural state, the end of the pawl (309) abuts against the ratchet teeth of the ratchet wheel (308), and the shifting rod (310) is used to receive force to drive the end of the pawl (309) to move away from / close to.

6. The adaptive underwater adsorption device according to claim 1, characterized in that: An elastic element is connected between the pawl (309) and the mounting base (306), and the pawl (309) has a rear end that abuts against the ratchet teeth of the ratchet wheel (308) through the elastic force of the elastic element.

7. The adaptive underwater adsorption device according to claim 1, characterized in that: The number of the adsorption mechanism (3) is one or more.

8. The adaptive underwater adsorption device according to claim 7, characterized in that: The plurality of adsorption mechanisms (3) are arranged in a bilaterally symmetrical manner.

9. An underwater salvage device, characterized in that: It comprises a carrier (1) and the adaptive underwater adsorption device according to any one of claims 1 to 8, wherein the adaptive underwater adsorption device is connected to the carrier (1).

10. The underwater salvage device according to claim 9, characterized in that: The carrier (1) comprises an underwater vehicle.

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