Liftable seaweed cultivation raft for improving water quality

Abstract

The present application relates to the technical field of seaweed cultivation, and discloses a liftable seaweed cultivation raft frame for improving water quality, which comprises vertical supports, four of which are arranged in a square shape, a connecting block is slidingly installed in each vertical support, and a float is fixedly installed at the bottom of the connecting block. The lifting of the lifting column can drive the telescopic frame to extend and retract, and the lifting of the lifting column can drive the connecting block to synchronously rise through the telescopic frame. In this way, the connecting block can be actively lifted by the telescopic frame during the rising tide period, so that the seaweed can be exposed to the sea surface, and the seaweed can be dried and exposed to the sun during the rising tide period. When the height of the sea surface during the rising tide is the lowest, the telescopic frame is fully extended, and the telescopic frame is always located below the connecting block, so that the float and the connecting block can freely rise and fall with the tides throughout the year. The problem that the float and the connecting block are forced to be immersed in seawater due to the blocking of the lifting assembly, the buoyancy increases, and the lifting assembly is damaged is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laver cultivation, in particular to a liftable laver cultivation raft frame for improving water quality. BACKGROUND

[0002] As a popular marine product, laver has a huge and stable market demand. Whether it is fresh laver or processed laver, such as dried laver and seasoned laver snacks, it has good sales performance in the market and has high economic value.

[0003] Traditional semi-floating raft cultivation controls the lifting of the buoy by limiting blocks, which can dry the laver during the ebb tide, but during the flood tide, the laver is actively lifted above the sea surface for sunning (such as during the noon strong light period), missing the opportunity to enhance disease resistance and improve quality.

[0004] Therefore, in order to meet the growth needs of laver, it is required to lift the laver above the sea surface for sunning and drying during the flood tide, which means that the buoy needs to be lifted above the sea surface. However, the highest water level of the sea surface changes regularly every day due to the tide phenomenon, and the height of the sea surface varies every day. If the height of the sea surface is higher tomorrow than today, the buoy will be submerged in the sea water under the blockage of the lifting assembly, and the buoyancy will increase. If the lifting assembly is not adjusted in time to return the buoy to the sea surface, the increased buoyancy will react on the lifting assembly, causing damage to the assembly. However, if the lifting assembly is adjusted every time to return the buoy to the sea surface, it needs to be adjusted frequently every day according to the change of the tide, which makes the cultivation process very complex. Therefore, the present application provides a liftable laver cultivation raft frame for improving water quality, which can adapt to the change of the tide and ensure that the laver can be dried under various tidal conditions. SUMMARY

[0005] The present application aims to solve the technical problems in the prior art by providing a liftable laver cultivation raft frame for improving water quality.

[0006] The object of the present application can be achieved by the following technical solutions:

[0007] A liftable laver cultivation raft frame for improving water quality, comprising:

[0008] The four vertical supports are arranged in a square, each vertical support has a connecting block slidingly installed therein, the bottom of the connecting block is fixedly installed with a buoy, adjacent two connecting blocks are connected by a cable, and between the two symmetrically arranged cables are connected a plurality of evenly distributed net curtains for cultivating laver, and each vertical support is fixedly installed with a limiting block.

[0009] The fixed frame is arranged on one side of the stand, a square frame is slidably arranged on the fixed frame, the square frame is driven to ascend and descend by a built-in driving source of the fixed frame, the square frame is located above the sea surface, a lifting column is fixedly arranged at each corner of the square frame, each lifting column corresponds to one stand, a telescopic frame is slidably arranged on the lifting column, the telescopic frame is driven to move by a driving assembly, the telescopic frame is located between the limiting block and the connecting block, when the driving source drives the square frame to descend so that the lifting column is located at the initial position, the telescopic frame is located in the lifting column at this time; when the driving source drives the square frame to ascend, the lifting column is synchronously ascended and drives the telescopic frame to be fully stretched by the driving assembly, one end of the telescopic frame moves into the stand at this time, and the lifting column is synchronously ascended by the telescopic frame when ascending, and the connecting block is synchronously ascended, and when the height of the sea surface is the lowest when the tide rises, the telescopic frame is fully stretched at this time, and the telescopic frame is always located below the connecting block.

[0010] As a further scheme of the present application: the driving assembly comprises a circular block, a waist-shaped groove, a lifting plate, an inclined groove and a linkage assembly, the linkage assembly is arranged in the lifting column and connected with the stand, the lifting plate is slidably arranged in the lifting column and driven to ascend and descend by the linkage assembly, the inclined groove is arranged on the lifting plate, and the horizontal height of one end of the inclined groove close to the stand is lower than that of the other end of the inclined groove away from the stand, the waist-shaped groove is arranged in the lifting column and corresponds to the inclined groove, the circular block is slidably arranged in the waist-shaped groove and fixedly connected with the telescopic frame, and the circular block is slidably arranged in the inclined groove, when the square frame drives the lifting column to ascend, the lifting column drives the lifting plate to ascend by the linkage assembly, and when the square frame drives the lifting column to descend, the lifting column drives the lifting plate to descend by the linkage assembly.

[0011] As a further scheme of the present application: the linkage assembly comprises a gear, a driven rack plate and a fixed rack plate, the fixed rack plate is fixedly arranged on the stand and always located above the sea surface, a second cavity is arranged in the lifting column, the gear is rotatably arranged in the second cavity, the driven rack plate is slidably arranged in the second cavity and fixedly connected with the top end of the lifting plate, the gear is located between the driven rack plate and the fixed rack plate and engaged with the driven rack plate, when the lifting column ascends and descends, the gear is engaged with the fixed rack plate when passing through the fixed rack plate.

[0012] As a further scheme of the present application: a clamping hole is arranged on the lifting plate, a first cavity and a mounting hole are arranged in the bottom end of the lifting column, the first cavity is communicated with the mounting hole, the lifting plate is slidably arranged in the first cavity, a clamping block is connected with the mounting hole by a spring, after the lifting column ascends and the telescopic frame is fully stretched, the spring pre-tightening force pushes the clamping block to insert into the first cavity, at this time, the clamping block abuts against the bottom of the lifting plate, when the lifting column is located at the initial position, the clamping hole is aligned with the mounting hole, at this time, the spring pre-tightening force pushes the clamping block to insert into the clamping hole.

[0013] As a further scheme of the present application: the vertical stand is fixedly provided with a trapezoidal block, the trapezoidal block is vertically arranged, one end of the clamping block is fixedly provided with a connecting rod, the connecting rod is slidably connected with the lifting column, one end of the connecting rod is rotatably provided with a rotating drum, the rotating drum is in rolling contact with the surface of the trapezoidal block, when the lifting column is located at the initial position, the rotating drum is located below the trapezoidal block, when the lifting column is lifted, the rotating drum is matched with the lower inclined edge of the trapezoidal block, the connecting rod is pulled to make the clamping block shrink from the clamping hole into the mounting hole, at this time, the gear is located below the fixed rack plate, then when the lifting column is lifted, the gear is engaged with the fixed rack plate, the rotation of the gear drives the driven rack plate and the lifting plate to lift, so that the telescopic frame is completely stretched, with the continuous lifting of the lifting column, the rotating drum is matched with the upper inclined edge of the trapezoidal block, at this time, the spring pre-tightening force pushes the clamping block to insert into the first cavity.

[0014] As a further scheme of the present application: each lifting column is provided with a lifting frame, one end of the lifting frame is located in the vertical stand, and the end is located above the connecting block, when the square frame is lowered to make the lifting column move downward from the initial position, the lifting frame abuts against the connecting block and presses the connecting block into the seawater.

[0015] As a further scheme of the present application: the lifting frame is slidably installed on the lifting column, each lifting frame is driven to move up and down by the output source built in the lifting column, when the output source drives the lifting frame to move downward, the lifting frame abuts against the connecting block and presses the connecting block into the seawater.

[0016] As a further scheme of the present application: the bottom of the fixed frame is communicated with a plurality of equally spaced aeration pipes, the aeration pipes are connected with an external aeration assembly.

[0017] The present application has the following beneficial effects:

[0018] 1、In the present application, the lifting of the lifting column can drive the telescopic frame to stretch and retract, and the lifting of the lifting column can drive the connecting block to synchronously lift through the telescopic frame, so that the seaweed can be exposed to the sea surface during the rising tide period, and the seaweed can be dried and exposed to the sun during the rising tide period, and when the height of the rising tide is the lowest, the telescopic frame is completely stretched, and the telescopic frame is always located below the connecting block, so that the buoy and the connecting block can freely rise and fall with the tides throughout the year, avoiding the problem that the buoy and the connecting block are forced to be immersed in seawater due to the blockage of the lifting assembly, resulting in increased buoyancy acting on the lifting assembly and causing damage to the assembly.

[0019] 2、The present application, by setting the lifting frame on the lifting column, when the square frame is lowered and the lifting column is moved downward from the initial position, the lifting frame abuts against the connecting block and presses the connecting block into the seawater, so that the seawater is fully absorbed by the seaweed, and the movement of the net curtain driven by the seaweed can also break the stratification of seawater, promote the mutual intermingling of the surface seawater rich in dissolved oxygen and the deep seawater rich in nutrients, and create a suitable environment for the growth of seaweed.

[0020] 3、The present application, by the external aeration assembly cooperating with the aeration pipe to aerate below the seaweed, can directly and effectively increase the dissolved oxygen content in seawater, meet the respiratory needs of seaweed and other marine organisms, maintain a good living environment, and the distribution of nutrients in seawater is not uniform, the water flow generated by the aeration pipe can drive the seawater to flow, so that the nutrients around the seaweed are fully mixed and circulated. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the structure of the cable in the present application;

[0024] Figure 3 is a schematic diagram of the structure of the stand in the present application;

[0025] Figure 4 is a schematic diagram of the structure of the fixed frame in the present application;

[0026] Figure 5 is a schematic diagram of the structure of the lifting column in the present application;

[0027] Figure 6 is a schematic diagram of the structure of the lifting plate driving the extension plate to extend in the present application;

[0028] Figure 7 is a schematic diagram of the structure of the lifting plate driving the telescopic frame to retract in the present application;

[0029] Figure 8 is a schematic diagram of the structure of the present application Figure 7 A portion of the enlarged structure;

[0030] Figure 9 is a schematic diagram of the telescopic frame located between the connecting block and the limiting block in the present application.

[0031] In the figure: 1, stand; 2, float; 3, connecting block; 4, cable; 5, limiting block; 6, fixed frame; 7, aeration pipe; 8, square frame; 9, lifting column; 901, first cavity; 902, second cavity; 903, waist-shaped groove; 10, telescopic frame; 1001, round block; 11, gear; 12, driven rack plate; 13, fixed rack plate; 14, lifting plate; 1401, inclined groove; 1402, clamping hole; 15, mounting hole; 16, clamping block; 17, spring; 18, connecting rod; 19, rotating drum; 20, trapezoidal block; 21, lifting frame. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Please refer to Figures 1-9 As shown in the figure, the present application is a kind of improved water quality with liftable Porphyra cultivation raft, comprising:

[0034] The stand 1 is arranged in a square shape, and the connecting block 3 is slidingly installed in each stand 1. The float 2 is fixedly installed at the bottom of the connecting block 3, and the adjacent two connecting blocks 3 are connected by the cable 4. The net curtain for cultivating Porphyra is connected between the two symmetrically arranged cables 4. The limiting block 5 is fixedly installed on each stand 1.

[0035] The fixed frame 6 is arranged on one side of the stand 1, and the square frame 8 is slidingly installed on the fixed frame 6. The square frame 8 is driven to rise and fall by the built-in driving source of the fixed frame 6, and the square frame 8 is located above the sea surface. The lifting column 9 is fixedly installed at the four corners of the square frame 8, and each lifting column 9 corresponds to one stand 1. The telescopic frame 10 is slidingly installed on the lifting column 9, and is driven to move by the driving assembly. The telescopic frame 10 is located between the limiting block 5 and the connecting block 3. When the driving source drives the square frame 8 to descend so that the lifting column 9 is located at the initial position, the telescopic frame 10 is located in the lifting column 9 at this time. When the driving source drives the square frame 8 to rise, the lifting column 9 rises synchronously and drives the telescopic frame 10 to fully extend through the driving assembly. At this time, one end of the telescopic frame 10 moves into the stand 1, and the lifting column 9 rises synchronously through the telescopic frame 10. When the height of the sea surface is the lowest during the tide, the telescopic frame 10 is fully extended, and the telescopic frame 10 is always located below the connecting block 3.

[0036] In one case of the embodiment, the driving source can be selected from an electric telescopic rod, an electric cylinder, a motor-driven threaded rod assembly, and the like, and other mechanisms capable of realizing lifting motion.

[0037] The working principle of the present application is as follows: Figure 2 As shown in the figure, the connecting blocks 3 in the four stands 1 are connected by the ropes 4, and then the net curtain is connected in a checkered shape on the ropes 4 surrounding a square, and the laver is planted on the net curtain, and the buoy 2 floats on the sea surface, and the laver on the net curtain is immersed in seawater, and due to the action of tidal force, the seawater rises and falls periodically, and the buoy 2 always floats on the sea surface, but the stand 1 is provided with a limiting block 5, when the tide falls, the connecting block 3 descends to the limiting block 5, and is blocked by the limiting block 5, so that the connecting block 3 cannot descend, and as the seawater continues to descend, the laver on the net curtain will be exposed to the sea surface, and finally the laver is completely located above the sea surface, so as to dry or expose to the sun, effectively supplementing the light to promote the growth of the laver, and the exposure helps to kill some bacteria, parasites and harmful algae attached to the surface of the laver, reducing the disease probability of the laver;

[0038] Considering that the time when the sun exposure effect is best and the rising tide period will overlap, a fixed frame 6 is provided, the fixed frame 6 is provided with a square frame 8 which can be lifted, and when the square frame 8 is lifted, the lifting column 9 is lifted synchronously, and when the lifting column 9 is lifted, the telescopic frame 10 is fully stretched by the driving assembly, at this time, one end of the telescopic frame 10 moves into the stand 1, and then the lifting column 9 is lifted, and the connecting block 3 is lifted synchronously by the telescopic frame 10, so that the connecting block 3 is lifted by the telescopic frame 10 actively during the rising tide period, so that the laver can be exposed to the sea surface, and the dry and exposure of the laver during the rising tide period is realized, when the driving source drives the square frame 8 to descend, the lifting column 9 is located at the initial position, at this time, the telescopic frame 10 is located in the lifting column 9, and at this time, the telescopic frame 10 does not hinder the lifting of the buoy 2 and the connecting block 3 with the rising and falling of the tide;

[0039] More importantly, when the height of the sea level is the lowest, the telescopic frame 10 is fully stretched, and the telescopic frame 10 is always located below the connecting block 3, which means that no matter what time, when the buoy 2 and the connecting block 3 are lifted up and down with the rise and fall of the tide, the seaweed cultivation area exists for one day in a year, and on this day, the height of the sea level is the lowest, and on this day, when the lifting column 9 rises and drives the telescopic frame 10 to be fully stretched, the telescopic frame 10 is still located below the connecting block 3, so the connecting block 3 can always be lifted up by the lifting column 9 and the telescopic frame 10 rising, so that the seaweed is dry and exposed to the sun during the rising tide period. By such arrangement, the buoy 2 and the connecting block 3 can freely rise and fall with the rise and fall of the tide throughout the year, avoiding the problem that the buoy 2 and the connecting block 3 are forced to be immersed in seawater due to the blockage of the lifting assembly, resulting in increased buoyancy acting on the lifting assembly, causing damage to the assembly.

[0040] As shown in Figures 1-7 As a preferred embodiment of the present application, the driving assembly includes a round block 1001, a waist-shaped groove 903, a lifting plate 14, an inclined groove 1401, and a linkage assembly, the linkage assembly is arranged in the lifting column 9 and connected with the stand 1, the lifting plate 14 is slidingly installed in the lifting column 9 and driven to rise and fall by the linkage assembly, the inclined groove 1401 is opened on the lifting plate 14 and the horizontal height of one end of the inclined groove 1401 close to the stand 1 is lower than that of the other end of the inclined groove 1401 away from the stand 1, the waist-shaped groove 903 is opened in the lifting column 9 and corresponds to the inclined groove 1401, the round block 1001 is slidingly installed in the waist-shaped groove 903 and fixedly connected with the telescopic frame 10, and the round block 1001 is slidingly installed with the inclined groove 1401, when the square frame 8 drives the lifting column 9 to rise, the lifting column 9 drives the lifting plate 14 to rise through the linkage assembly, and when the square frame 8 drives the lifting column 9 to descend, the lifting column 9 drives the lifting plate 14 to descend through the linkage assembly.

[0041] In actual application, when the square frame 8 drives the lifting column 9 to rise, the lifting column 9 drives the lifting plate 14 to rise through the linkage assembly, the lifting plate 14 rising makes the round block 1001 slide in the inclined groove 1401, and due to the limitation of the waist-shaped groove 903, the round block 1001 moves in the waist-shaped groove 903 towards the stand 1, and then the telescopic frame 10 moves to the stand 1, and when the lifting column 9 rises, the telescopic frame 10 abuts against the bottom of the connecting block 3, achieving active lifting of the connecting block 3, and vice versa, when the square frame 8 drives the lifting column 9 to descend, the lifting column 9 drives the lifting plate 14 to descend through the linkage assembly, and the buoy 2 and the connecting block 3 will descend under the action of gravity, and the lifting plate 14 descending makes the telescopic frame 10 retract into the lifting column 9, avoiding hindering the descent of the buoy 2 and the connecting block 3.

[0042] As shown in Figures 1-7As shown, as a preferred embodiment of the present application, the linkage assembly comprises a gear 11, a driven rack plate 12 and a fixed rack plate 13, the fixed rack plate 13 is fixedly installed on the stand 1, and the fixed rack plate 13 is always above the sea surface, a second cavity 902 is formed in the lifting column 9, the gear 11 is rotatably installed in the second cavity 902, the driven rack plate 12 is slidably installed in the second cavity 902, and the driven rack plate 12 is fixedly connected with the top end of the lifting plate 14, the gear 11 is located between the driven rack plate 12 and the fixed rack plate 13, and the gear 11 is engaged with the driven rack plate 12, when the lifting column 9 is lifted, the gear 11 passes through the fixed rack plate 13, and the gear 11 is engaged with the fixed rack plate 13.

[0043] In actual application, the fixed rack plate 13 is fixedly installed on the stand 1, as shown in the figure, Figure 7 When the lifting column 9 is lifted, the gear 11 will pass through the fixed rack plate 13, at this time the gear 11 is engaged with the fixed rack plate 13, the gear 11 will rotate counterclockwise, and the gear 11 is engaged with the driven rack plate 12, so the gear 11 will drive the driven rack plate 12 to rise, and the lifting plate 14 rises synchronously with the driven rack plate 12, thereby achieving the purpose of completely stretching the telescopic frame 10, and the gear 11 stops rotating after rising away from the fixed rack plate 13, until the lifting column 9 is lowered, as shown in the figure, Figure 5 At this time, the gear 11 passes through the fixed rack plate 13, the gear 11 rotates clockwise, thereby driving the driven rack plate 12 to descend, and the lifting plate 14 descends synchronously with the driven rack plate 12, thereby achieving the purpose of retracting the telescopic frame 10 into the lifting column 9, so as to realize the automatic telescoping process of the telescopic frame 10 during the lifting of the lifting column 9, without the need for an additional power source.

[0044] As shown in the figure, Figures 1-8 As a preferred embodiment of the present application, a clamping hole 1402 is formed in the lifting plate 14, a first cavity 901 and a mounting hole 15 are formed in the bottom end of the lifting column 9, the first cavity 901 communicates with the mounting hole 15, the lifting plate 14 is slidably installed in the first cavity 901, and the mounting hole 15 is connected with a clamping block 16 through a spring 17, when the lifting column 9 is lifted to completely stretch the telescopic frame 10, the spring 17 pre-tightening force pushes the clamping block 16 to insert into the first cavity 901, at this time the clamping block 16 abuts against the bottom of the lifting plate 14, when the lifting column 9 is located at the initial position, the clamping hole 1402 is aligned with the mounting hole 15, at this time the spring 17 pre-tightening force pushes the clamping block 16 to insert into the clamping hole 1402.

[0045] In one case of the present embodiment, one end of the clamping block 16 is always located in the mounting hole 15.

[0046] In actual application, considering that the lifting of the lifting column 9 makes the gear 11 away from the fixed rack plate 13, at this time, the lifting plate 14 supports the lifting of the connecting block 3, and the weight of the seaweed may make the lifting plate 14 descend, thereby making the telescopic frame 10 retract into the lifting column 9 again. Therefore, the clamping block 16 is arranged, when the lifting column 9 is lifted to make the telescopic frame 10 fully extend, the spring 17 pre-tightening force pushes the clamping block 16 to insert into the first cavity 901, at this time, the clamping block 16 abuts against the bottom of the lifting plate 14, preventing the lifting plate 14 from descending, ensuring that the telescopic frame 10 can support the lifting of the connecting block 3, achieving the purpose of dry exposure and sun exposure of the seaweed during the rising tide period, and when the lifting column 9 is located at the initial position, the clamping hole 1402 is aligned with the mounting hole 15, at this time, the spring 17 pre-tightening force pushes the clamping block 16 to insert into the clamping hole 1402, so as to avoid the lifting of the lifting plate 14, making the telescopic frame 10 always located in the lifting column 9 when the lifting column 9 is at the initial position.

[0047] As shown in Figures 1-9 As a preferred embodiment of the present application, the stand 1 is fixedly installed with a trapezoidal block 20, the trapezoidal block 20 is vertically arranged, one end of the clamping block 16 is fixedly installed with a connecting rod 18, the connecting rod 18 is slidingly connected with the lifting column 9, one end of the connecting rod 18 is rotatably installed with a rotating cylinder 19, the rotating cylinder 19 is in rolling contact with the surface of the trapezoidal block 20, when the lifting column 9 is located at the initial position, the rotating cylinder 19 is located below the trapezoidal block 20, when the lifting column 9 is lifted, the rotating cylinder 19 cooperates with the lower inclined edge of the trapezoidal block 20, pulling the connecting rod 18 to make the clamping block 16 retract from the clamping hole 1402 into the mounting hole 15, at this time, the gear 11 is located below the fixed rack plate 13, then when the lifting column 9 is lifted to make the gear 11 mesh with the fixed rack plate 13, the gear 11 rotates to drive the driven rack plate 12 and the lifting plate 14 to ascend, thereby making the telescopic frame 10 fully extend, as the lifting column 9 continues to rise, the rotating cylinder 19 cooperates with the upper inclined edge of the trapezoidal block 20, at this time, the spring 17 pre-tightening force pushes the clamping block 16 to insert into the first cavity 901.

[0048] In actual application, when the lifting column 9 rises, the rotary drum 19 cooperates with the lower inclined edge of the trapezoidal block 20, pulls the connecting rod 18 to make the clamping block 16 shrink from the clamping hole 1402 into the mounting hole 15, at this time, the gear 11 is below the fixed rack plate 13, thus avoiding the problem that when the clamping block 16 still limits the lifting plate 14 from lifting, the gear 11 has been engaged with the fixed rack plate 13, causing the rising of the lifting column 9 and the driven rack plate 12 to interfere with each other, and then when the lifting column 9 rises to make the gear 11 engage with the fixed rack plate 13, the gear 11 rotates to drive the driven rack plate 12 and the lifting plate 14 to rise, so that the telescopic frame 10 is fully stretched, and as the lifting column 9 continues to rise, the rotary drum 19 cooperates with the upper inclined edge of the trapezoidal block 20, at this time, the spring 17 pre-tightening force pushes the clamping block 16 to insert into the first cavity 901, so as to realize that the clamping block 16 abuts against the bottom of the lifting plate 14 to prevent the lifting plate 14 from descending;

[0049] Conversely, when the dried seaweed is exposed to the sun and dried, the lifting column 9 will descend first, and then the clamping block 16 will move from the first cavity 901 into the mounting hole 15, and then the gear 11 will engage with the fixed rack plate 13 to make the driven rack plate 12 and the lifting plate 14 descend, and when the lifting plate 14 descends to the bottom, the telescopic frame 10 is fully retracted into the lifting column 9, at this time, the clamping hole 1402 is aligned with the mounting hole 15, so that the clamping block 16 is inserted into the clamping hole 1402, thereby limiting the movement of the lifting plate 14.

[0050] As shown in Figures 1-9 As a preferred embodiment of the present application, a lifting frame 21 is arranged on each lifting column 9, one end of the lifting frame 21 is located in the stand 1, and the end is located above the connecting block 3, when the square frame 8 descends to make the lifting column 9 move downward from the initial position, the lifting frame 21 abuts against the connecting block 3 and presses the connecting block 3 into the seawater.

[0051] In actual application, considering the stratification of seawater, the nutrients in different layers of seawater are different, if the buoy 2 always floats on the sea surface, the seaweed cultured by the net curtain on the cable 4 can only float on the upper layer of seawater, and there is a problem that the seaweed has a low utilization rate of nutrients in seawater, therefore, by arranging the lifting frame 21 on the lifting column 9, when the square frame 8 descends to make the lifting column 9 move downward from the initial position, the lifting frame 21 abuts against the connecting block 3 and presses the connecting block 3 into the seawater, so that the seaweed can fully absorb the nutrients in seawater, and the movement of the seaweed driven by the net curtain can also break the stratification of seawater, so as to promote the mutual intermingling of the seawater rich in dissolved oxygen on the surface layer and the seawater rich in nutrients on the deep layer, and create an environment suitable for the growth of seaweed.

[0052] As shown in Figures 1-9As shown, as a preferred embodiment of the present invention, the lifting frame 21 is slidably installed on the lifting column 9. Each lifting frame 21 is driven by an output source built into the lifting column 9 to perform lifting movement. When the output source drives the lifting frame 21 to descend, the lifting frame 21 abuts against the connecting block 3 and presses the connecting block 3 into the seawater.

[0053] In one case of this embodiment, the output source may be an electric telescopic rod, a motor-driven threaded rod assembly, or other components, or other mechanisms capable of achieving lifting motion, which is not specifically limited in this embodiment.

[0054] In actual application, the lifting of the lifting frame 21 is directly controlled by the output source, without the need for the square frame 8 to be lifted or lowered, and without the need for the lifting column 9 to continue to move downward from the initial position to drive the connecting block 3 to be immersed in seawater. In this way, the lifting of the lifting column 9 is specifically used to control the connection block 3 to rise to the sea surface to achieve exposure of the cultured laver, while the lifting of the lifting frame 21 is specifically used to control the connection block 3 to be immersed in seawater, so that the cultured laver is located in different seawater layers and repeatedly absorbs nutrients in the seawater. This allows the lifting column 9 and the lifting frame 21 to focus on specific functions and improve operational stability.

[0055] like Figure 1 As shown in FIG. 1 , as a preferred embodiment of the present invention, the bottom of the fixing frame 6 is connected to a plurality of aeration pipes 7 arranged at equal intervals, and the aeration pipes 7 are connected to an external aeration component.

[0056] In one case of this embodiment, it should be noted that the external aeration assembly described in the present invention includes an air compressor, a gas pipeline, a valve and a control system, etc. The above components are all existing technologies and the present invention does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention.

[0057] In actual application of this embodiment, the photosynthesis of laver consumes carbon dioxide in seawater and releases oxygen. However, at night or when there is insufficient light, the dissolved oxygen in the water body will gradually decrease. Aeration under the laver through the external aeration component and the aeration pipe 7 can directly and effectively increase the dissolved oxygen content in the seawater, meet the breathing needs of laver and other marine organisms, and maintain a good living environment. In addition, the nutrients in the seawater are not evenly distributed. The water flow generated by the aeration of the aeration pipe 7 can drive the flow of seawater, so that the nutrients around the laver are fully mixed and circulated.

[0058] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A water quality improving elevatable seaweed farming raft, characterized by, The utility model relates to a kind of marine algae cultivation device, including: Stand (1), four stand (1) are squarely arranged, slidingly installed with connecting block (3) in each stand (1), the bottom of connecting block (3) is fixedly installed with buoy (2), between two adjacent connecting block (3) by cable (4) connection, between two symmetrical arrangements cable (4) connection there are several evenly distributed net curtain for cultivating laver, each stand (1) is fixedly installed with limit block (5) on; Fixed frame (6) is arranged on one side of stand (1), slidingly installed with square frame (8) on fixed frame (6), the square frame (8) is driven to lift by built-in drive source of fixed frame (6), and square frame (8) is located above sea surface, the square frame (8) is fixedly installed with lifting column (9) at four corners, each lifting column (9) is corresponding with a stand (1), slidingly installed with telescopic frame (10) on lifting column (9), the telescopic frame (10) is driven to move by drive assembly, and the telescopic frame (10) is located between limit block (5) and connecting block (3), when drive source drives square frame (8) to descend so that lifting column (9) is located in initial position, at this time, telescopic frame (10) is located in lifting column (9);When drive source drives square frame (8) to rise, lifting column (9) is synchronous with rising and drives telescopic frame (10) to be completely stretched by drive assembly, at this time, one end of telescopic frame (10) moves to stand (1) inside, and lifting column (9) is synchronous with rising by telescopic frame (10) when driving connecting block (3) to rise, and when the height of sea level is lowest when tide rises, at this time, telescopic frame (10) is completely stretched, and the telescopic frame (10) is always located below connecting block (3); The drive assembly includes round block (1001), waist-shaped groove (903), lifting plate (14), inclined groove (1401) and linkage assembly, the lifting plate (14) is slidingly installed in lifting column (9), and the lifting plate (14) is driven to lift by linkage assembly, the inclined groove (1401) is opened in lifting plate (14), the waist-shaped groove (903) is opened in lifting column (9), and the waist-shaped groove (903) corresponds to the inclined groove (1401), the round block (1001) is slidingly installed in the waist-shaped groove (903), the round block (1001) is fixedly connected with telescopic frame (10), and the round block (1001) is slidingly installed with inclined groove (1401); The linkage assembly includes gear (11), driven rack plate (12) and fixed rack plate (13); The lifting plate (14) is provided with clamping hole (1402), and the bottom end of the lifting column (9) is provided with first cavity (901) and mounting hole (15) in the inside, the first cavity (901) is communicated with the mounting hole (15), the lifting plate (14) is slidingly installed in the first cavity (901), and the mounting hole (15) is connected with clamping block (16) by spring (17).

2. The elevatable Porphyra cultivation raft according to claim 1, wherein The linkage assembly is arranged in the lifting column (9), and the linkage assembly is connected with the stand (1), and the horizontal height of one end of the chute (1401) close to the stand (1) is lower than that of the other end of the chute (1401) away from the stand (1), when the square frame (8) drives the lifting column (9) to rise, the lifting column (9) drives the lifting plate (14) to rise through the linkage assembly, when the square frame (8) drives the lifting column (9) to descend, the lifting column (9) drives the lifting plate (14) to descend through the linkage assembly.

3. The elevatable Porphyra cultivation raft according to claim 2, wherein The fixed rack plate (13) is fixedly installed on the stand (1), and the fixed rack plate (13) is always located above the sea surface, the second cavity (902) is arranged in the lifting column (9), the gear (11) is rotatably installed in the second cavity (902), the driven rack plate (12) is slidably installed in the second cavity (902), and the driven rack plate (12) is fixedly connected with the top end of the lifting plate (14), the gear (11) is located between the driven rack plate (12) and the fixed rack plate (13), and the gear (11) is engaged with the driven rack plate (12), when the lifting column (9) rises and falls, when the gear (11) passes through the fixed rack plate (13), the gear (11) is engaged with the fixed rack plate (13).

4. The elevatable seaweed cultivation raft according to claim 3, wherein When the lifting column (9) rises and the telescopic frame (10) is completely stretched, the spring (17) pre-tightening force pushes the clamping block (16) to insert into the first cavity (901), at this time, the clamping block (16) abuts against the bottom of the lifting plate (14), when the lifting column (9) is located at the initial position, the clamping hole (1402) is aligned with the mounting hole (15), at this time, the spring (17) pre-tightening force pushes the clamping block (16) to insert into the clamping hole (1402).

5. The elevatable Porphyra cultivation raft according to claim 4, wherein The stand (1) is fixedly installed with a trapezoidal block (20), the trapezoidal block (20) is vertically arranged, one end of the clamping block (16) is fixedly installed with a connecting rod (18), the connecting rod (18) is slidably connected with the lifting column (9), one end of the connecting rod (18) is rotatably installed with a rotating cylinder (19), the rotating cylinder (19) is in rolling contact with the surface of the trapezoidal block (20), when the lifting column (9) is located at the initial position, the rotating cylinder (19) is located below the trapezoidal block (20), when the lifting column (9) rises, the rotating cylinder (19) cooperates with the lower inclined edge of the trapezoidal block (20), pulls the connecting rod (18) to make the clamping block (16) retract from the clamping hole (1402) into the mounting hole (15), at this time, the gear (11) is located below the fixed rack plate (13), then when the lifting column (9) rises and the gear (11) is engaged with the fixed rack plate (13), the gear (11) rotates to drive the driven rack plate (12) and the lifting plate (14) to rise, so that the telescopic frame (10) is completely stretched, with the continuous rising of the lifting column (9), the rotating cylinder (19) cooperates with the upper inclined edge of the trapezoidal block (20), at this time, the spring (17) pre-tightening force pushes the clamping block (16) to insert into the first cavity (901).

6. The elevatable Porphyra cultivation raft according to claim 1, wherein Each lifting column (9) is provided with a lifting frame (21), one end of the lifting frame (21) is located in the stand (1), and the end is located above the connecting block (3); when the square frame (8) is lowered to make the lifting column (9) move downward from the initial position, the lifting frame (21) abuts against the connecting block (3) and presses the connecting block (3) into the seawater.

7. The elevatable seaweed cultivation raft according to claim 6, wherein, The lifting frame (21) is slidingly installed on the lifting column (9), each lifting frame (21) is driven to perform lifting movement by an output source built in the lifting column (9); when the output source drives the lifting frame (21) to descend, the lifting frame (21) abuts against the connecting block (3) and presses the connecting block (3) into the seawater.

8. The elevatable seaweed cultivation raft according to claim 7, wherein, The bottom of the fixing frame (6) is communicated with a plurality of equally-spaced aeration pipes (7), and the aeration pipes (7) are connected with external aeration components.

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