Underwater hoisting clamp

Abstract

The utility model provides an underwater hoisting clamp, and relates to the technical field of hoisting clamps, the underwater hoisting clamp comprises an upper beam, a lower beam, a clamping jaw assembly, a clamping jaw connecting arm assembly, a guide assembly and a guide rod cylinder; the upper beam and the lower beam are arranged in parallel; the guide rod cylinder is connected between the upper beam and the lower beam; the clamping jaw assembly is connected to the lower beam through a clamping jaw connecting rod, a clamping part is arranged at the end of the clamping jaw assembly, and the end, away from the clamping part, of the clamping jaw assembly is connected with the upper beam through a clamping jaw connecting arm assembly. The guide rod cylinder contracts or extends to drive the lower beam to approach or leave the upper beam; the lower beam acts to drive the clamping part of the clamping jaw assembly to be opened or closed; the guide assemblies are fixedly connected to the two ends of the upper beam. The guide assembly is connected into the slide way, the slide way is arranged in the vertical direction, and the guide assembly moves in the slide way along the slide way. The clamp is used for hoisting the culture box cage in seawater, and the stability of hoisting the culture box cage by the clamp is improved.

Description

Technical Field

[0001] The present application relates to the technical field of lifting clamps, and in particular to an underwater lifting clamp. Background Art

[0002] With the rapid development of world economic trade and the continuous development of marine resources, marine aquaculture has attracted more and more attention, especially sea cucumbers and other marine delicacies with high nutritional value and investment value are becoming more and more popular. At present, a new aquaculture method has emerged in which sea cucumbers and other marine delicacies are placed in aquaculture cages in seawater for aquaculture. However, how to quickly and efficiently retrieve the aquaculture cages from the seawater to the aquaculture platform has become an urgent problem that needs to be solved.

[0003] The aquaculture cage is a frame-type steel structure. When placing the aquaculture cage in the sea or lifting it from the sea, an underwater lifting fixture is generally used for fast and safe lifting operations. After the aquaculture cage is lifted to the designated location, the clamp gripper can be opened by remotely controlling the cylinder to retract, thereby releasing the aquaculture cage; when grabbing the aquaculture cage, the clamp gripper can be closed by remotely controlling the cylinder or oil cylinder to extend, thereby grabbing the aquaculture cage. The underwater lifting fixture has the characteristics of no need for manual underwater operation, high efficiency, wide adaptability, and strong stability, and can be widely used in the lifting operation of aquaculture cages in the sea.

[0004] At present, in my country, the bottom seeding and proliferation breeding method used for wild sea cucumbers is to harvest sea cucumbers by transforming the seabed environment and placing sea cucumber seedlings in the sea area. The sea cucumbers are of excellent quality and need frogmen to dive into the seabed to recapture them, but the recapture rate is very low. The method of breeding sea cucumbers in breeding cages in seawater is a new breeding method that has emerged. In order to adapt to the complex environment in the sea for a long time, the steel structure used in the breeding cages is heavy and cannot be moved manually. Special lifting fixtures are required to place and recycle the breeding cages. Container lifting equipment is a large-scale special machine for container loading, unloading and transshipment. It is widely used in freight storage, water transport ports and docks, but there is currently no special underwater lifting fixture for lifting breeding cages in seawater.

[0005] The existing patent publication number is: CN116040461A, which provides a lifting clamp for H-shaped steel beams, the clamp includes two gravity clamps, each of which includes a traction beam and two outer clamps, the opposite sides of the two outer clamps are provided with auxiliary support blocks and two jacking pulley assemblies, each jacking pulley assembly includes two sets of jacking pulley mechanisms, each set of jacking pulley mechanisms includes a jacking pulley, a bidirectional screw and two clamping pulleys, both ends of the jacking pulley are formed with a first round table surface, and the opposite ends of the two clamping pulleys are formed with a second round table surface, and each outer clamp is also provided with a driving shaft, a coil spring and a driving mechanism. In the utility model, the spacing between the two outer clamps on each gravity clamp can be infinitely adjusted within a certain range, so that steel beams of any size within the range can be clamped, and the spacing of the two outer clamps relative to the top crossbeam of the steel beam in the vertical direction can also be adjusted within a certain range. However, the disadvantage of this clamp is that the clamp is not provided with a guide limit mechanism during the lifting process, which causes the clamp to easily deflect during the lifting and lowering of the H-shaped steel beam, resulting in poor lifting and lowering stability of the clamp.

[0006] Therefore, the technical problem that urgently needs to be solved is: how to provide an underwater lifting clamp for lifting aquaculture cages in seawater and improve the stability of the clamp for lifting aquaculture cages. Utility Model Content

[0007] The purpose of the present application is to provide an underwater lifting clamp for lifting aquaculture cages in seawater and to improve the stability of the clamp in lifting aquaculture cages.

[0008] To achieve the above-mentioned purpose, the present application provides an underwater lifting clamp, including: an upper beam, a lower beam, a clamping jaw assembly, a clamping jaw connecting arm assembly, a guide assembly and a guide rod cylinder; the upper beam is arranged in parallel with the lower beam, and the guide rod cylinder is connected between the upper beam and the lower beam; the clamping jaw assembly is connected to the lower beam through a clamping jaw connecting rod, and the end of the clamping jaw assembly has a clamping portion, and the end of the clamping jaw assembly away from the clamping portion is connected to the upper beam through the clamping jaw connecting arm assembly; the guide rod cylinder contracts or extends, driving the lower beam to approach or move away from the upper beam; the lower beam moves, driving the clamping portion of the clamping jaw assembly to open or close; the guide assembly is fixedly connected to the two ends of the upper beam; the guide assembly is connected in a slide, the slide is arranged in a vertical direction, and the guide assembly moves in the slide along the slide.

[0009] As described above, the underwater lifting clamp, wherein the guide assembly includes a first guide member, a second guide member and a guide member connecting rod; the guide member connecting rod is perpendicular to the upper beam and fixedly connected to the end of the upper beam; the first guide member and the second guide member are respectively fixedly connected to the two ends of the guide member connecting rod; the first guide member and the second guide member are connected in the slide.

[0010] As described above, the underwater lifting clamp, wherein the first guide member and the second guide member both include: wheels, connecting rods and pins, the connecting rods are fixedly connected to the guide member connecting rods through the pins, the wheels are connected to the ends of the connecting rods, and the wheels are rollingly connected in the slideway.

[0011] As for the underwater lifting fixture as described above, the bottom of the upper beam is fixedly connected with a support rod, and the support rod is perpendicular to the upper beam; one end of the support rod away from the upper beam is fixedly connected with an in-position sensor through a connecting bracket.

[0012] As described above, the underwater lifting fixture, wherein a guide rail is provided at the end of the lower beam, the guide rail is perpendicular to the lower beam and is arranged along the vertical direction, and a slider is provided on the side of the support rod close to the lower beam, and the slider is slidably connected in the guide rail.

[0013] In the underwater lifting clamp as described above, a clamping sensor is provided on the inner side of the clamping portion.

[0014] As for the underwater lifting fixture as described above, wherein an underwater camera base for mounting an underwater camera is fixedly connected to the lower beam.

[0015] As described above, in the underwater lifting clamp, the clamping claw connecting rod is arranged perpendicular to the lower beam, and the clamping claw connecting rod is fixedly connected to the lower beam; the two ends of the clamping claw connecting rod are respectively connected to the two clamping claw assemblies; and a clamping space is formed between the clamping parts of the two clamping claw assemblies.

[0016] In the underwater lifting clamp as described above, the clamping jaw connecting rods include two, and the two clamping jaw connecting rods are symmetrically arranged at two ends of the lower beam.

[0017] As described above, in the underwater lifting fixture, the guide rod cylinders include two, the two guide rod cylinders are spaced apart and both are connected between the upper beam and the lower beam.

[0018] The beneficial effects achieved by this application are as follows:

[0019] (1) The underwater lifting fixture of the present application includes a guide assembly, which is connected in a slideway, and the slideway is arranged in a vertical direction. During the process of lifting the aquaculture cage by the underwater lifting fixture, the guide assembly moves along the slideway in the slideway, and the guide assembly will not separate from the slideway, so that the underwater lifting fixture will not deviate during the process of lifting the aquaculture cage, thereby improving the stability of the underwater lifting fixture in lifting the aquaculture cage.

[0020] (2) When the underwater lifting fixture is used to lift the aquaculture cage, the guide assembly enters the slideway, and the wheels roll in the slideway with low friction, so that the aquaculture cage can be smoothly lifted and lowered, while avoiding friction damage to the slideway as much as possible, thereby increasing the service life of the slideway.

[0021] (3) The upper beam and the lower beam of the present application can be folded and separated by contracting the guide rod cylinder, thereby driving the action of the clamping claw assembly and the clamping claw connecting arm assembly to realize the release and grasping operation of the breeding cage.

[0022] (4) The underwater lifting fixture of the present application does not require manual underwater operation and has strong stability, and can be widely used in underwater aquaculture cage lifting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For those skilled in the art, other drawings can also be obtained based on these drawings.

[0024] Figure 1 This is a front view of an underwater lifting clamp according to an embodiment of the present application.

[0025] Figure 2 This is a top view of an underwater lifting clamp according to an embodiment of the present application.

[0026] Figure 3 This is a right view of an underwater lifting clamp according to an embodiment of the present application.

[0027] Figure 4 This is an axial view of an underwater lifting clamp according to an embodiment of the present application.

[0028] Figure 5 This is a schematic diagram of the structure of the guide assembly of an embodiment of the present application.

[0029] Figure 6 This is a schematic diagram of the installation structure of the in-place sensor according to an embodiment of the present application.

[0030] Figure markings: 1-upper beam; 2-lower beam; 3-grip assembly; 4-grip connecting arm assembly; 5-guide assembly; 6-guide rod cylinder; 7-in-place sensor; 8-clamping sensor; 9-underwater camera base; 10-slide; 11-wheel; 12-connecting rod; 13-pin shaft; 14-support rod; 15-guide rail; 16-slider; 17-connecting bracket; 18-lifting ear; 21-grip connecting rod; 51-first guide member; 52-second guide member; 53-guide member connecting rod. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0032] like Figure 1-4 As shown, the present application provides an underwater lifting fixture, which includes: an upper beam 1, a lower beam 2, a clamping claw assembly 3, a clamping claw connecting arm assembly 4, a guide assembly 5, a guide rod cylinder 6, an in-position sensor 7, a clamping sensor 8 and an underwater camera base 9. A lifting lug 18 is also provided on the top of the upper beam 1, and the lifting lug 18 has an ear hole. The lifting lug 18 is used to connect the hook of the crane, so that the underwater lifting fixture is driven to rise and fall as a whole by hooking the lifting lug 18 through the hook. Preferably, the lifting lug 18 includes two, and the two lifting lugs 18 are symmetrically fixedly connected to the top of the upper beam 1. The crane hooks the underwater lifting fixture through the two lifting lugs to make it more stable and reliable. The upper beam 1 is arranged in parallel with the lower beam 2, and the lower beam 2 is arranged below the upper beam 1. The guide rod cylinder 6 is vertically connected between the upper beam 1 and the lower beam 2. After the guide rod cylinder 6 is started, it is used to adjust the distance between the upper beam 1 and the lower beam 2. The clamping jaw assembly 3 is connected to the lower beam 2 via a clamping jaw connecting rod 21. After the distance between the upper beam 1 and the lower beam 2 is adjusted, the clamping jaw assembly 3 can be driven by the lower beam 2 to clamp or release the object it clamps. In the embodiment of the present application, the object clamped by the clamping jaw assembly 3 is a breeding cage. Here, the type of object clamped by the clamping jaw assembly 3 is not limited, and it can also be other objects.

[0033] like Figure 1-4As shown, the end of the clamping jaw assembly 3 has a clamping portion, and the end of the clamping jaw assembly 3 away from the clamping portion is connected to the upper beam 1 through the clamping jaw connecting arm assembly 4; the guide rod cylinder 6 contracts or extends, driving the lower beam 2 to approach or move away from the upper beam 1; the lower beam 2 moves, driving the clamping portion of the clamping jaw assembly 3 to open or close; the guide assembly 5 is fixedly connected to the two ends of the upper beam 1; the guide assembly 5 is connected to the slideway 10, the slideway 10 is inserted into the water in the vertical direction, the slideway 10 is fixed to the bottom of the water and does not move, the guide assembly 5 moves along the slideway 10 in the slideway 10, and the guide assembly 5 will not be separated from the slideway 10 during the process of lifting the aquaculture cage by the underwater lifting fixture. There will be no deflection during the process of lifting the aquaculture cage by the underwater lifting fixture, thereby improving the stability of the underwater lifting fixture lifting the aquaculture cage.

[0034] As a preferred embodiment of the present utility model, each of the upper beam 1 and the lower beam 2 includes one, and the number of the upper beam 1 and the lower beam 2 is not limited here, and other numbers may also be possible.

[0035] As a preferred embodiment of the utility model, the clamping jaw assembly 3 includes four, two of which are symmetrically arranged at one end of the lower beam 2, and the other two are symmetrically arranged at the other end of the lower beam 2. The two clamping jaw assemblies 3 arranged at each end of the lower beam 2 form a pair of clamping jaws for clamping objects, that is, two pairs of clamping jaws are formed at the two ends of the lower beam 2; the clamping parts of the two clamping jaw assemblies 3 of each pair of clamping jaws can be moved closer or farther away from each other under the drive of the lower beam 2, thereby achieving the clamping or loosening of the object. The two pairs of clamping jaws clamp the two ends of the object respectively, and preferably, the clamping and loosening of the two pairs of clamping jaws are synchronous actions, thereby achieving reliable clamping and loosening of the object.

[0036] It should be explained that the present application clamps the breeding cage by two pairs of jaws, which has higher clamping reliability and stronger load-bearing capacity than clamping the breeding cage by one pair of jaws. The utility model connects two pairs of jaws at both ends of a lower beam 2, and when a lower beam 2 moves, it can drive the two pairs of jaws to move synchronously, thereby achieving synchronous clamping and loosening of the two pairs of jaws, achieving reliable clamping or loosening of the breeding cage by the two pairs of jaws, and improving the reliability and stability of the clamp hoisting breeding cage.

[0037] As a specific embodiment of the utility model, each clamping jaw assembly 3 is pivotally connected to the end of the clamping jaw connecting rod 21, and the part of the clamping jaw assembly 3 located below the clamping jaw connecting rod 21 is the clamping portion. The end of each clamping jaw assembly 3 away from the clamping portion is connected to the upper beam 1 through a clamping jaw connecting arm assembly 4; one end of the clamping jaw connecting arm assembly 4 is hinged to the bottom end of the upper beam 1 through a hinge support, and the clamping jaw connecting arm assembly 4 can rotate relative to the upper beam 1 around the hinge support, and the other end of the clamping jaw connecting arm assembly 4 is rotationally connected to the end of the clamping jaw assembly 3 away from the clamping portion through a rotating shaft, and the clamping jaw connecting arm assembly 4 can rotate relative to the clamping jaw assembly 3.

[0038] like Figure 3 As shown, when the guide rod cylinder 6 contracts, the lower beam 2 moves toward the upper beam 1 under the drive of the guide rod cylinder 6, and the lower beam 2 drives the clamping jaw assembly 3 to rotate, and the clamping jaw assembly 3 rotates around the rotation connection point between the clamping jaw assembly 3 and the lower beam 2, and one end of the clamping jaw connecting arm assembly 4 is connected along Figure 3 The clamping part of the clamping jaw assembly 3 rotates in the direction of A. Figure 3 The clamping part rotates in the middle B direction, thereby releasing the breeding cage. The clamping principle of the breeding cage is opposite to the principle of the clamping part releasing the breeding cage, which will not be repeated here.

[0039] like Figure 4 As shown, the guide assembly 5 includes a first guide 51, a second guide 52 and a guide connecting rod 53; the guide connecting rod 53 is perpendicular to the upper beam 1 and fixedly connected to the end of the upper beam 1; the first guide 51 and the second guide 52 are respectively fixedly connected to the two ends of the guide connecting rod 53. Preferably, the first guide 51 and the second guide 52 have the same structure, and the first guide 51 and the second guide 52 are symmetrically arranged at the two ends of the guide connecting rod 53; the first guide 51 and the second guide 52 are connected in the slide 10, and the first guide 51 and the second guide 52 can move up and down along the slide 10, so as to limit the overall movement of the underwater lifting fixture within the up and down movement (lifting) range.

[0040] like Figure 5 As shown, the first guide member 51 and the second guide member 52 both include: a wheel 11, a connecting rod 12 and a pin 13, the connecting rod 12 is fixedly connected to the guide member connecting rod 53 through the pin 13, the wheel 11 is connected to the end of the connecting rod 12, the wheel 11 is rollingly connected in the slideway 10, and the slideway 10 is fixedly connected to the bottom of the water. The underwater lifting fixture is lifted by a crane. When the underwater lifting fixture is used to lift the aquaculture cage, the guide assembly 5 enters the slideway 10 respectively, and the upper and lower wheels 11 connected by the connecting rod 12 roll in the slideway 10, so as to realize the smooth and stable lifting of the aquaculture cage.

[0041] It needs to be explained that when the underwater lifting clamp is used to lift the aquaculture cage, the guide components 5 enter the slide 10 respectively, and the upper and lower wheels 11 connected by the connecting rod 12 roll in the slide 10 with small friction, so that the aquaculture cage can be smoothly lifted and lowered, while avoiding friction damage to the slide 10 as much as possible, thereby increasing the service life of the slide 10.

[0042] like Figure 6As shown, the bottom of the upper beam 1 is fixedly connected with a support rod 14, and the support rod 14 is perpendicular to the upper beam 1; the end of the support rod 14 away from the upper beam 1 is fixedly connected with an in-place sensor 7 through a connecting bracket 17, and the in-place sensor 7 is used to detect whether the underwater lifting fixture has been lowered into place. When the in-place sensor 7 has a reading, it indicates that the underwater lifting fixture has been lowered into place. Preferably, two support rods 14 are fixed at both ends of the bottom of the upper beam 1, and two in-place sensors 7 are fixed at the bottom end of each support rod 14 through a connecting bracket 17. The preferred in-place sensors 7 of the present application include four. If one of the four in-place sensors 7 is damaged, the other in-place sensors 7 can also detect whether the underwater lifting fixture has been lowered into place, thereby improving the accuracy of the in-place sensor 7 in detecting whether the underwater lifting fixture has been lowered into place.

[0043] It should be explained that the in-place sensor 7 is a device for detecting whether an object has reached a set position and outputting a signal, also known as a position sensor or a stopper. Its main function is to transfer an object from an unordered position to an ordered position, and it is a commonly used detection element in a mechanical device. The basic principle of the in-place sensor 7 is to monitor the position of an object in a variety of ways such as light, air pressure, capacitance, and magnetism, or to determine the positional relationship between the detected object and the detector, and output a corresponding control signal. When a reaction is generated between an object and a sensor in the form of light, magnetism, etc., a signal will be generated in the control system, and the size of the signal can reflect the positional relationship of the object, thereby realizing the detection and tracking of the object position. Common types of in-place sensors 7 include photoelectric sensors, proximity switches, piezoelectric sensors, and magnetic sensors. Each type has different characteristics and applicable scenarios. The in-place sensor 7 used in this application is a waterproof in-place sensor, for example: the in-place sensor 7 uses DE-42279EEC60947-5-1B waterproof proximity switch sensor and FJ9-15KE waterproof proximity sensor. The present application may adopt other types of in-place sensors, as long as they can detect whether the underwater lifting fixture has been lowered into place. The type and model of the in-place sensor are not limited here, and the user can select the type and model of the in-place sensor 7 according to needs.

[0044] It needs to be explained that the in-place sensor 7 of the present invention is not a necessary device for the underwater lifting fixture, and the arrangement of the in-place sensor 7 on the underwater lifting fixture is only a preferred technical solution of the present invention.

[0045] like Figure 6As shown, a guide rail 15 is provided at the end of the lower beam 2, and the guide rail 15 is perpendicular to the lower beam 2 and is arranged in the vertical direction. A slider 16 is provided on the side of the support rod 14 close to the lower beam 2, and the slider 16 is slidably connected in the guide rail 15. When the lower beam 2 moves up and down, the lower beam 2 drives the guide rail 15 to move up and down, and the slider 16 does not move. The slider 16 actually slides in the guide rail 15 relative to the guide rail 15. Preferably, the guide rail 15 of the utility model is a U-shaped guide rail. The in-place sensor 7 is connected to the bottom of the support rod 14, and the in-place sensor 7 is fixed to the bottom end of the support rod 14. The position of the support rod 14 is limited by the guide rail 15, and the position of the in-place sensor 7 is also limited by the guide rail 15, so that the in-place sensor 7 will not be offset or skewed, the trajectory is single, and no displacement occurs on the plane, which ensures that the in-place sensor 7 can accurately contact the breeding cage to avoid misoperation.

[0046] As a preferred embodiment of the utility model, two guide rails 15 are respectively arranged at both ends of the lower beam 2, and the two guide rails 15 are both arranged in the vertical direction. Slide blocks 16 are slidably connected in the two guide rails 15, and the two slide blocks 16 are respectively fixedly connected to the two support rods 14 connected to the upper beam 1.

[0047] like Figure 1-4 As shown, a clamping sensor 8 is provided inside the clamping portion. Preferably, a clamping sensor 8 is provided inside the clamping portion of each clamping jaw assembly 3, and the clamping sensor 8 is used to detect whether the clamping jaw assembly 3 has grasped the breeding cage.

[0048] It should be explained that the clamping sensor 8 is a device for detecting whether an object is clamped. It can sense the clamping state of the workpiece and transmit the signal to the control electrical appliance. When selecting the clamping sensor 8, factors such as the detection range, accuracy, reliability and working environment need to be considered. For example, the range should be sufficient to cover the expected clamping force range, and the accuracy should meet the measurement requirements. At the same time, the stability of the sensor in harsh environments such as high temperature, low temperature, humidity or vibration also needs to be considered. The clamping sensor 8 of this application adopts a waterproof clamping sensor 8. For example, the clamping sensor 8 adopts the R248 model tension and compression bidirectional multi-dimensional torque clamping force test sensor and the R260B clamping force measurement sensor. This application does not limit the type of clamping sensor 8, as long as it can detect whether the clamping jaw assembly 3 has grasped the breeding cage, the user can select the type and model of the clamping sensor 8 according to needs.

[0049] It needs to be explained that the clamping sensor 8 of the present invention is not a necessary device for the underwater lifting fixture, and the arrangement of the clamping sensor 8 on the underwater lifting fixture is only a preferred technical solution of the present invention.

[0050] like Figure 1As shown, an underwater camera base 9 for installing an underwater camera is fixedly connected to the lower beam 2. Preferably, four underwater camera bases 9 are arranged on the lower beam 2, and underwater cameras can be arranged according to needs in the later stage to observe the state of the clamping part of the clamping claw assembly 3 to determine whether to complete the capture or release of the breeding cage.

[0051] like Figure 4 As shown, the clamping jaw connecting rod 21 is arranged perpendicular to the lower beam 2, and the clamping jaw connecting rod 21 is fixedly connected to the lower beam 2; the two ends of the clamping jaw connecting rod 21 are respectively connected to two clamping jaw assemblies 3; and a clamping space is formed between the clamping parts of the two clamping jaw assemblies 3.

[0052] Preferably, the clamping jaw connecting rods 21 include two, and the two clamping jaw connecting rods 21 are symmetrically arranged at two ends of the lower beam 2 .

[0053] As a preferred embodiment of the utility model, the guide rod cylinder 6 includes two, the two guide rod cylinders 6 are spaced apart, and the two guide rod cylinders 6 are connected between the upper beam 1 and the lower beam 2. The number of the guide rod cylinders 6 is not limited here, and other numbers of guide rod cylinders 6 can also be used. Preferably, the two guide rod cylinders 6 act synchronously.

[0054] As a specific embodiment of the utility model, the guide rod cylinder 6 is an existing cylinder, and the guide rod cylinder 6 can be controlled to retract or extend by an existing remote control handle or console. The method for controlling the retraction or extension of the guide rod cylinder 6 is an existing technology and will not be repeated here.

[0055] As a specific embodiment of the utility model, the use principle of an underwater lifting fixture of the utility model is as follows:

[0056] The upper beam 1 and the lower beam 2 are connected via two guide rod cylinders 6 , and the upper beam 1 and the lower beam 2 can be folded and separated by contracting or extending the guide rod cylinders 6 . After the underwater lifting fixture lifts the breeding cage to the specified position, the guide rod cylinder 6 is controlled by remote control to perform a contraction action, which drives the clamping jaw assembly 3 and the clamping jaw connecting arm assembly 4 to move, so that the clamping part of the clamping jaw assembly 3 can be opened, and when the reading of the clamping sensor 8 on the clamping part of the clamping jaw assembly 3 is zero, the breeding cage is completely released; when grabbing the breeding cage, the underwater lifting fixture is lowered by lowering the wire rope of the crane (wherein, the wire rope is connected with a hook, and the hook lifts the underwater lifting fixture), and when the in-place sensor 7 has a reading, it indicates that the underwater lifting fixture has been lowered into place, and the guide rod cylinder 6 is controlled by remote control to perform an extension action, which drives the clamping jaw assembly 3 and the clamping jaw connecting arm assembly 4 to move, so that the clamping part of the clamping jaw assembly 3 can be closed, and when the clamping sensor 8 on the clamping part of the clamping jaw assembly 3 has a reading, it indicates that the breeding cage has been grabbed.

[0057] The beneficial effects achieved by this application are as follows:

[0058] (1) The underwater lifting fixture of the present application includes a guide assembly, which is connected in a slideway, and the slideway is arranged in a vertical direction. During the process of lifting the aquaculture cage by the underwater lifting fixture, the guide assembly moves along the slideway in the slideway, and the guide assembly will not separate from the slideway, so that the underwater lifting fixture will not deviate during the process of lifting the aquaculture cage, thereby improving the stability of the underwater lifting fixture in lifting the aquaculture cage.

[0059] (2) When the underwater lifting fixture is used to lift the aquaculture cage, the guide assembly enters the slideway, and the wheels roll in the slideway with low friction, so that the aquaculture cage can be smoothly lifted and lowered, while avoiding friction damage to the slideway as much as possible, thereby increasing the service life of the slideway.

[0060] (3) The upper beam and the lower beam of the present application can be folded and separated by contracting the guide rod cylinder, thereby driving the action of the clamping claw assembly and the clamping claw connecting arm assembly to realize the release and grasping operation of the breeding cage.

[0061] (4) The underwater lifting fixture of the present application does not require manual underwater operation and has strong stability, and can be widely used in underwater aquaculture cage lifting operations.

[0062] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0063] In the description of the present application, the word "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any technician in the field to implement and use the utility model, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the utility model can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the utility model obscure. Therefore, the utility model is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

[0064] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An underwater lifting fixture, characterized in that: include: An upper beam, a lower beam, a clamping jaw assembly, a clamping jaw connecting arm assembly, a guide assembly and a guide rod cylinder; The upper beam is arranged in parallel with the lower beam, and the guide rod cylinder is connected between the upper beam and the lower beam; The clamping jaw assembly is connected to the lower beam through a clamping jaw connecting rod, the end of the clamping jaw assembly has a clamping portion, and one end of the clamping jaw assembly away from the clamping portion is connected to the upper beam through the clamping jaw connecting arm assembly; The guide rod cylinder contracts or extends, driving the lower beam to approach or move away from the upper beam; the lower beam moves, driving the clamping part of the clamping jaw assembly to open or close; The guide assembly is fixedly connected to the two ends of the upper beam; the guide assembly is connected in a slideway, the slideway is arranged in a vertical direction, and the guide assembly moves in the slideway along the slideway.

2. The underwater lifting fixture according to claim 1, characterized in that: The guide assembly includes a first guide member, a second guide member and a guide member connecting rod; The guide member connecting rod is perpendicular to the upper beam and fixedly connected to the end of the upper beam; The first guide member and the second guide member are respectively fixedly connected to two ends of the guide member connecting rod; The first guide member and the second guide member are connected in the slideway.

3. The underwater lifting fixture according to claim 2, characterized in that: The first guide member and the second guide member both include: a wheel, a connecting rod and a pin, The connecting rod is fixedly connected to the guide connecting rod through the pin shaft. The wheel is connected to the end of the connecting rod, and the wheel is rollingly connected in the slideway.

4. The underwater lifting fixture according to claim 1, characterized in that: The bottom of the upper beam is fixedly connected with a support rod. The support rod is perpendicular to the upper beam; One end of the support rod away from the upper beam is fixedly connected with an in-position sensor through a connecting bracket.

5. The underwater lifting fixture according to claim 4, characterized in that: A guide rail is disposed at the end of the lower beam, and the guide rail is perpendicular to the lower beam and disposed in a vertical direction. A sliding block is arranged on one side of the support rod close to the lower beam, and the sliding block is slidably connected in the guide rail.

6. The underwater lifting fixture according to claim 1, characterized in that: A clamping sensor is arranged on the inner side of the clamping portion.

7. The underwater lifting fixture according to claim 1, characterized in that: An underwater camera base for installing an underwater camera is fixedly connected to the lower beam.

8. The underwater lifting fixture according to claim 1, characterized in that: The clamping claw connecting rod is arranged perpendicular to the lower beam, and the clamping claw connecting rod is fixedly connected to the lower beam; Two ends of the clamping jaw connecting rod are respectively connected to the two clamping jaw assemblies; A clamping space is formed between the clamping parts of the two clamping jaw assemblies.

9. The underwater lifting fixture according to claim 8, characterized in that: The clamping jaw connecting rods include two, and the two clamping jaw connecting rods are symmetrically arranged at two ends of the lower beam.

10. The underwater lifting fixture according to claim 1, characterized in that: The guide rod cylinders include two, the two guide rod cylinders are spaced apart and both are connected between the upper beam and the lower beam.

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