Chain controller structure

Abstract

A chain stopper structure comprises a chain stopper barrel integrally connected with a net cage body frame and two chain stopper blocks movably arranged on the upper portion of the chain stopper barrel, a guide hole is formed in the center of the chain stopper barrel, hinges are arranged on the opposite sides of the two chain stopper blocks and hinged through a pin shaft, lug plates are arranged on the other sides of the chain stopper blocks, and the lug plates are locked through bolts. The lower portions of the chain control blocks extend into the guide holes, locking grooves are machined in the connecting faces of the two chain control blocks, the anchor chain penetrates through the chain control blocks from top to bottom, chain links of the anchor chain are embedded into the locking grooves in a matched mode, the chain control blocks tightly hold the anchor chain, and the lower portion of the anchor chain extends out of the guide holes to be connected with the positioning anchor. According to the chain stopper structure, the hinge type chain stopper block capable of being opened and closed is used for holding an anchor chain, the hollow chain stopper barrel with the guide hole is matched, the anchor chain and the chain stopper block are pulled down through the gravity of the positioning anchor, the lower portion of the chain stopper block extends into the guide hole to form axial limiting, the overall structure is simple, operation is convenient, the structure is evenly distributed on the periphery of a net cage, and the service life of the net cage is prolonged. The overall stability of the net cage is effectively maintained.

Description

Technical Field

[0001] The present invention relates to a structure of a chain stopper. Background Art

[0002] Deep - sea aquaculture is a production activity that utilizes the shallow coastal beaches to cultivate marine aquatic economic animals and plants, and is an important part of the aquaculture industry. The objects of deep - sea aquaculture mainly include fish, shrimps and crabs, shellfish, algae, and other economic animals such as sea cucumbers. Deep - sea aquaculture of seawater fish has just started in China and is a new technology with broad application prospects. Deep - sea aquaculture technology involves a cage system, and the mooring system is an important part of the cage system, including a chain stopper structure for fixing the anchor chain in the mooring system. Existing chain stoppers are mostly guillotine - type chain stoppers. Since the overall structure of the cage is very large and the size of the anchor chain is also large, the supporting chain stopper also increases accordingly. As a result, it becomes difficult to open and close the guillotine of the chain stopper, and the contact area between the guillotine and the anchor chain is small, so it is easy to wear during use. Summary of the Invention

[0003] In view of the deficiencies in the above - mentioned problems, the present invention provides a structure of a chain stopper.

[0004] To achieve the above object, the present invention provides a structure of a chain stopper, which includes a chain - stopping barrel integrally connected to the main frame of the cage, and two chain - stopping blocks movably arranged on the upper part of the chain - stopping barrel. A through - hole is axially formed at the center of the chain - stopping barrel. Hinges are provided on the opposite sides of the two chain - stopping blocks and are hinged by a pin shaft. Ear plates are provided on the other sides of the chain - stopping blocks, and the ear plates are locked by bolts. The lower parts of the chain - stopping blocks extend into the through - hole. Locking grooves are machined on the contact surfaces of the two chain - stopping blocks, and the two locking grooves enclose a receiving cavity with openings at the upper and lower ends. The anchor chain passes through between the chain - stopping blocks from top to bottom, and the chain links of the anchor chain are fitted into the locking grooves. The chain - stopping blocks hold and limit the anchor chain. The lower part of the anchor chain extends out along the through - hole and is connected to a positioning anchor, and the upper end of the anchor chain is connected to an electric hoist on the operation platform above the main frame of the cage.

[0005] As a further improvement of the present invention, the locking groove includes an upper groove and a lower groove that are connected. The width of the upper groove matches the thickness of the chain link, and the width of the lower groove matches the width of the chain link. The two chain links placed between the chain - stopping blocks are perpendicular to each other.

[0006] As a further improvement of the present invention, a tapered hole is machined at the upper part of the through - hole, and a tapered surface is machined on the outer peripheral surface of the lower part of the chain - stopping block. The tapered surface fits into the tapered hole.

[0007] As a further improvement of the present invention, a convex edge extends radially from the upper part of the chain - stopping block, and the convex edge abuts against the upper surface of the chain - stopping barrel.

[0008] As a further improvement of the present invention, both the hinge and the ear plate are arranged outside the convex edge and fixed by welding.

[0009] As a further improvement of the present invention, a flared opening is formed at the lower part of the guiding hole.

[0010] As a further improvement of the present invention, a through hole is formed in the middle of the ear plate for installing a bolt.

[0011] As a further improvement of the present invention, connection positioning holes are machined at the top of the chain stopper block for connecting an external positioning mechanism, and the connection positioning holes are arranged in pairs.

[0012] The beneficial effects of the present invention are as follows:

[0013] The structure of this chain stopper adopts a hinged chain stopper block that can be opened and closed to hold the anchor chain. It is combined with a chain stopper barrel with a hollow guiding hole. Relying on the gravity of the positioning anchor, the anchor chain and the chain stopper block are pulled down. The lower part of the chain stopper block extends into the guiding hole to form an axial limit. The overall structure is simple and the operation is convenient. This structure is evenly distributed around the fish cage, effectively maintaining the overall stability of the fish cage. The upper end of the anchor chain is connected to an electric hoist. By using the electric hoist to pull up the anchor chain and the chain stopper block, after the chain stopper block is moved out of the position of the chain stopper barrel, the connection position of the chain stopper block and the anchor chain can be adjusted, which is convenient for adjusting the lower length of the anchor chain and facilitating the cooperation with the lifting process of the fish cage in the sea. Compared with the existing guillotine-type chain stopper, the contact area between the chain stopper block structure and the anchor chain in this solution is larger and the locking effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of a chain stopper structure of the present invention;

[0015] Figure 2 It is a connection schematic diagram of the chain stopper block 2;

[0016] Figure 3 It is a three-dimensional view of the chain stopper block 2;

[0017] Figure 4 It is a working schematic diagram of a chain stopper structure of the present invention.

[0018] In the figure: 1. Chain stopper barrel; 11. Guiding hole; 111. Taper hole; 112. Flared opening; 2. Chain stopper block; 21. Locking groove; 211. Upper groove; 212. Lower groove; 22. Taper surface; 23. Convex edge; 24. Connection positioning hole; 3. Ear plate; 31. Through hole; 4. Hinge; 5. Pin shaft; 6. Anchor chain; 61. Chain link; 7. Main frame of fish cage; 8. Working platform; 9. Electric hoist; 10. Positioning anchor. DETAILED DESCRIPTION OF THE INVENTION

[0019] Such as Figure 1As shown in the figure, a chain stopper structure according to the present invention includes a chain stopper barrel 1 integrally connected to the main frame 7 of the net cage, and two chain stopper blocks 2 movably disposed on the upper part of the chain stopper barrel 1. A through guiding hole 11 is formed axially at the center of the chain stopper barrel 1. A tapered hole 111 is machined at the upper part of the guiding hole 11, and a flared opening 112 is formed at the lower part of the guiding hole 11. Hinges 4 are provided on one side of the two chain stopper blocks 2 opposite to each other and are hinged by a pin shaft 5. An ear plate 3 is provided on the other side of the chain stopper block 2 (see Figure 2 ), and the ear plates 3 are locked by bolts. A through hole 31 is opened in the middle of the ear plate 3 for installing the bolts. The lower part of the chain stopper block 2 extends into the guiding hole 11. A tapered surface 22 is machined on the outer peripheral surface of the lower part of the chain stopper block 2, and the tapered surface 22 is fitted and extends into the tapered hole 111. A convex edge 23 extends radially from the upper part of the chain stopper block 2, and the convex edge 23 abuts against the upper surface of the chain stopper barrel 1. The hinges 4 and the ear plates 3 are both provided outside the convex edge 23 and are welded and fixed. Locking grooves 21 are machined on the mating surfaces of the two chain stopper blocks 2, and the two locking grooves 21 enclose a receiving cavity with openings at the upper and lower ends. The anchor chain 6 passes through between the chain stopper blocks 2 from top to bottom, and the chain links 61 of the anchor chain 6 are fitted and embedded into the locking grooves 21. The chain stopper blocks 2 hold and limit the anchor chain 6. The locking grooves 21 include an upper groove 211 and a lower groove 212 that are connected. The width of the upper groove 211 matches the thickness of the chain link 61, and the width of the lower groove 212 matches the width of the chain link 61 (see Figure 3 ). The two chain links 61 placed between the chain stopper blocks 2 are perpendicular to each other. The lower part of the anchor chain 6 extends out along the guiding hole 11 and is connected to a positioning anchor 10. The upper end of the anchor chain 6 is connected to an electric hoist 9 on the operation platform 8 above the main frame 7 of the net cage (see Figure 4 ). Connecting and positioning holes 24 are machined at the top of the chain stopper blocks 2 for connecting an external positioning mechanism, and the connecting and positioning holes 24 are arranged in pairs.

[0020] This chain stopper structure uses an openable hinge-type chain stopper block to hold the anchor chain. In cooperation with a chain stopper barrel with a hollow guiding hole, the anchor chain and the chain stopper block are pulled down by the gravity of the positioning anchor. The lower part of the chain stopper block extends into the guiding hole to form axial limitation. The overall structure is simple and the operation is convenient. This structure is evenly distributed around the net cage, effectively maintaining the overall stability of the net cage. The upper end of the anchor chain is connected to an electric hoist. By pulling up the anchor chain and the chain stopper block through the electric hoist, the connection position of the chain stopper block and the anchor chain can be adjusted after the chain stopper block is moved out of the position of the chain stopper barrel, which is convenient for adjusting the lower length of the anchor chain and is convenient for coordinating with the lifting process of the net cage in the sea. Compared with the existing guillotine-type chain stopper, the contact area between the chain stopper block structure and the anchor chain in this solution is large, and the locking effect is better.

[0021] During specific use, for the convenience of understanding the present invention, it is described in conjunction with the accompanying drawings;

[0022] One end of the anchor chain is connected to the electric hoist on the working platform above the main frame of the cage. The other end of the anchor chain passes through between the chain holding blocks from top to bottom. The chain links of the anchor chain are fitted and embedded into the locking grooves. The chain holding blocks hold and limit the anchor chain. Then the lower part of the anchor chain extends out through the guiding hole in the center of the chain holding barrel and is connected to the positioning anchor. When it is necessary to adjust the length of the anchor chain, the electric hoist works to pull the anchor chain, the chain holding blocks and the positioning anchor upward as a whole. The connecting positioning holes in the upper part of the chain holding blocks are connected to the external positioning mechanism. After the chain holding blocks are moved out of the chain holding barrel, an external force is used to position the chain holding blocks at an appropriate height. Then the bolts on the ear plates of the two chain holding blocks are removed, and the two chain holding blocks can be opened along the hinge position. The electric hoist can freely adjust the length of the anchor chain. In cooperation with the ballast adjustment inside the cage, the overall draft of the cage is adjusted. After the adjustment is completed, the chain holding blocks are assembled at the appropriate positions on the anchor chain above the chain holding barrel, the chain holding blocks are closed, and the two ear plates are locked by bolts. The chain holding blocks are disconnected from the external positioning mechanism. The electric hoist lowers the anchor chain, and the anchor chain, the chain holding blocks and the positioning anchor sink downward under their own gravity. The lower part of the chain holding blocks extends into the guiding holes at the center of the chain holding barrel to form axial limitation.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A chain stopper structure, characterized in that: it includes a chain barrel (1) integrally connected to the main frame (7) of the net cage, and two chain stopper blocks (2) movably arranged on the upper part of the chain barrel (1). A through guiding hole (11) is axially formed at the center of the chain barrel (1). Hinges (4) are provided on one side of the two chain stopper blocks (2) opposite to each other and are hinged by a pin shaft (5). An ear plate (3) is provided on the other side of the chain stopper block (2). The ear plates (3) are locked by bolts. The lower part of the chain stopper block (2) extends into the guiding hole (11). Locking grooves (21) are machined on the contact surfaces of the two chain stopper blocks (2). The two locking grooves (21) enclose a receiving cavity with openings at the upper and lower ends. The anchor chain (6) passes through between the chain stopper blocks (2) from top to bottom. The chain links (61) of the anchor chain (6) are fitted and embedded into the locking grooves (21). The chain stopper blocks (2) hold and limit the anchor chain (6). The lower part of the anchor chain (6) extends out along the guiding hole (11) and is connected to a positioning anchor (10). The upper end of the anchor chain (6) is connected to an electric hoist (9) on an operating platform (8) above the main frame (7) of the net cage.

2. A chain stopper structure according to claim 1, characterized in that: the locking groove (21) includes a connected upper groove (211) and a lower groove (212). The width of the upper groove (211) matches the thickness of the chain link (61). The width of the lower groove (212) matches the width of the chain link (61). The two chain links (61) placed between the chain stopper blocks (2) are perpendicular to each other.

3. A chain stopper structure according to claim 1, characterized in that: a tapered hole (111) is machined at the upper part of the guiding hole (11). A tapered surface (22) is machined on the outer peripheral surface of the lower part of the chain stopper block (2). The tapered surface (22) is fitted and extends into the tapered hole (111).

4. A chain stopper structure according to claim 1, characterized in that: a convex edge (23) extends radially at the upper part of the chain stopper block (2). The convex edge (23) abuts against the upper surface of the chain barrel (1).

5. A chain stopper structure according to claim 4, characterized in that: both the hinge (4) and the ear plate (3) are arranged outside the convex edge (23) and are fixed by welding.

6. A chain stopper structure according to claim 1, characterized in that: a flared opening (112) is formed at the lower part of the guiding hole (11).

7. A chain stopper structure according to claim 1, characterized in that: a through hole (31) is opened in the middle of the ear plate (3) for installing bolts.

8. A chain stopper structure according to claim 1, characterized in that: connection positioning holes (24) are machined at the top of the chain stopper block (2) for connecting an external positioning mechanism. The connection positioning holes (24) are arranged in pairs.

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