Adaptive underwater adsorption device and underwater salvage device

Abstract

This invention provides an adaptive underwater adsorption device and an underwater salvage device, comprising: an adsorption mechanism, an ejector, and a jet pump; 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; 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 creating a negative pressure within the adsorption mechanism to achieve a reliable adsorption function.

Description

Technical Field

[0001] This invention relates to the field of marine equipment technology, specifically to an adaptive underwater adsorption device and an underwater salvage device. Background Technology

[0002] Suction cups are tools that use the pressure difference between the inside and outside of the atmosphere to adhere to objects, and they have applications in many fields. Patent document CN112279056A discloses a gripper body and an underwater salvage device. The gripper body includes a gripper main body with a thruster, including front and rear thrusters and lateral thrusters. A clamping and locking mechanism is fixed to the inner wall of the gripper main body. The clamping and locking mechanism can be composed of a fixed base, a hydraulic motor, a rotating sleeve, and threaded pins. Alternatively, it can be composed of a connecting base, 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 cap, and a rotating shaft seat. In this patent document, the suction cup is drawn in by the water pump, creating a negative pressure inside the suction cup, which increases the clamping force on the surface of the target being salvaged.

[0003] The drawbacks of this method are: the efficiency of using a water pump for suction is low, and the negative pressure effect generated is poor, thus providing limited suction force; during the lifting process of the retrieval device, the target will cause the suction cup to move downward under the action of gravity, resulting in suction cup instability, which further reduces the reliability of the suction cup during the retrieval process. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an adaptive underwater adsorption device and an underwater salvage device.

[0005] An adaptive underwater adsorption device according to the present invention includes: an adsorption mechanism, an ejector, and a jet pump;

[0006] The jet 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 jet ejector. The second input port of the jet 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 jet ejector, thereby creating a negative pressure in the adsorption mechanism to achieve the adsorption function.

[0007] Furthermore, the jet ejector includes, in sequence, a nozzle, a suction pipe, a mixing pipe, and a diffuser;

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

[0009] Furthermore, the diameter of the mixing tube is smaller than the diameter of the nozzle and the suction tube, and the diameter of the diffuser 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 limiting block, and a mounting base;

[0011] The suction cup is movably connected to the suction cup mounting plate, and the suction cup and the suction cup mounting plate are elastically connected by the spring. The suction cup mounting plate is hinged to the mounting base, and the limiting block is connected to the mounting base to limit the rotation angle of the suction cup mounting plate in two rotation directions. 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 includes: 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 its natural state, the end of the pawl abuts against the ratchet teeth of the ratchet, and the lever is used to drive the end of the pawl away from / near the ratchet.

[0016] Furthermore, an elastic element is connected between the pawl and the mounting base, and the end of the pawl abuts against the ratchet teeth of the ratchet by the elastic force of the elastic element.

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

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

[0019] An underwater salvage device according to the present invention includes a carrier and an adaptive underwater adsorption device, wherein the 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] This invention solves the problem of rapid and effective vacuum adsorption of suction cups underwater by adopting the structure of a jet pump. This allows the adsorption mechanism to create a vacuum inside the suction cup under the working principle of jet suction, thus enabling it to have better underwater target adsorption function and working efficiency.

[0023] This invention, by employing an adsorption mechanism, solves the problem of the suction cup adapting its position and posture underwater according to different adsorption target shapes, thus achieving the suction cup's excellent adaptive adsorption function.

[0024] This invention employs a ratchet mechanism, which solves the problem of the suction cup moving downwards and becoming unstable under gravity during the process of adsorbing and lifting the target. This invention achieves the function of the suction cup being able to stably and reliably adsorb the target. Attached Figure Description

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

[0026] Figure 1 This is a schematic diagram of the adaptive underwater adsorption device.

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

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

[0029] Figure 4 This is a 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 picture:

[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 Implementation

[0033] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the scope of protection 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 mounted on a carrier 1.

[0035] The jet 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 jet ejector 4. The second input port of the jet 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 jet ejector 4, creating a negative pressure within the adsorption mechanism 3 to achieve the adsorption function. Specifically, the structure of the jet ejector 4 is as follows: Figure 2 As shown, the device includes, in sequence, a nozzle 401, an intake pipe 402, a mixing pipe 403, and a diffuser pipe 404 connected along an axis. One end of the nozzle 401 is a first inlet, and the other end is located in the intake pipe 402 near the mixing pipe 403. The side wall of the intake pipe 402 has a radially extending conduit, the end of which is a second inlet, and the end of the diffuser pipe 404 is an output end.

[0036] The mixing tube 403 has a smaller diameter than the nozzle 401 and the suction tube 402, and is a long, thin tube. The diameter of the diffuser tube 404 gradually increases from the end connected to the mixing tube 403 towards the outlet. The high-pressure fluid generated by the jet pump 5 enters the mixing tube 403 through the nozzle 401. During this process, it carries the medium from the suction tube 402 into the mixing tube 403 and is then ejected from the diffuser tube 404, thereby generating a negative pressure in the adsorption mechanism 3 connected to the suction tube 402, thus completing 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 limiting 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 elastically connects the two, allowing the suction cup 301 to have an adjustable vertical travel function under the action of the spring 302, thus providing a buffering function when the suction cup 301 contacts the target 6. The suction cup mounting plate 303 is hinged to the mounting base 306, and a limiting block 305 is connected to the mounting base 306 to limit the rotation angle of the suction cup mounting plate 303 in two rotational directions. A torsion spring 304 is elastically connected between the suction cup mounting plate 303 and the mounting base 306, applying 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 will rotate upward under the support of the surface of the target 6 until it contacts the target 6. Figure 3The upper limit block 305. At 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. Figure 3 When the lower limit block 305 is lifted, the suction cup 301 has already completed the adsorption action. If rotation occurs at this time, the adsorption may fail and the object 6 may be separated. In order to avoid this situation, the present invention also 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 its 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 / towards the ratchet teeth. An elastic element connects the pawl 309 to the mounting base 306, and the elastic force of the elastic element causes the end of the pawl 309 to abut against the ratchet teeth of the ratchet 308. Through the unidirectional rotation function of the ratchet mechanism 307, the suction cup 301 is mechanically locked during the lifting process after suction is completed, preventing it from rotating due to the gravity of the target 6 and eliminating the problem of instability of the suction cup 301. When it is necessary to release the one-way rotation function, the pawl 309 is moved away from the ratchet 308 by driving the lever 310. Then the suction cup 301 will be reset under the action of the torsion spring 304, and the lever 310 will also be reset and contact the ratchet 308 under the elastic force of the elastic element.

[0041] In this invention, the adsorption mechanism 3 can be configured with different numbers and combinations of adsorption devices according to different retrieval targets to achieve optimal target retrieval efficiency. Commonly used configuration methods include matrix-style arrangements, such as... Figure 5 The diagram shows several symmetrical arrangements, including matrix layouts and a central-surrounded layout.

[0042] The present invention also provides an underwater salvage device, including a carrier 1 and the aforementioned 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 this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An adaptive underwater adsorption device, characterized in that, include: Adsorption mechanism (3), jet injector (4) and jet pump (5); The jet 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 jet ejector (4). The second input port of the jet 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 jet ejector (4), thereby generating a negative pressure in the adsorption mechanism (3) to achieve the adsorption function. The adsorption mechanism (3) includes: a suction cup (301), a spring (302), a suction cup mounting plate (303), a torsion spring (304), a limiting 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 by the spring (302). The suction cup mounting plate (303) is hinged to the mounting base (306). The limiting 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). The adsorption mechanism (3) also includes a ratchet mechanism (307); 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 its natural state, the end of the pawl (309) abuts against the ratchet tooth of the ratchet (308), and the lever (310) is used to drive the end of the pawl (309) away from / near the ratchet.

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

3. The adaptive underwater adsorption device according to claim 2, characterized in that, The diameter of the mixing tube (403) is smaller than the diameter of the nozzle (401) and the suction tube (402), and the diameter of the diffuser 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, 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 tooth of the ratchet wheel (308) by the elastic force of the elastic element.

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

6. The adaptive underwater adsorption device according to claim 5, characterized in that, The adsorption mechanisms (3) are arranged in a left-right symmetrical manner.

7. An underwater salvage device, characterized in that, It includes a carrier (1) and an adaptive underwater adsorption device according to any one of claims 1-6, wherein the adaptive underwater adsorption device is connected to the carrier (1).

8. The underwater salvage device according to claim 7, characterized in that, The carrier (1) includes an underwater vehicle.

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