Marine shark pincer chain limiting mechanism

Abstract

The utility model relates to the technical field of ship accessories, and discloses a marine shark pincer chain limiting mechanism which comprises a shell, two first limiting mechanisms are symmetrically installed in the shell, a gap is formed when the two first limiting mechanisms clamp each other, the width of the gap is equal to the diameter of a chain ring, a second limiting mechanism is installed on the shell, and the second limiting mechanism is connected with the shell. The second limiting mechanism and the two first limiting mechanisms are arranged at intervals, the two first limiting mechanisms are symmetrical about the second limiting mechanism, the second limiting mechanism can penetrate through the chain ring from the inner side of the chain ring and extend to the position above the chain ring, and two auxiliary limiting mechanisms are symmetrically installed on the shell. The auxiliary limiting mechanism is arranged on the side, facing the sea surface, of the limiting mechanism I. The device solves the problems that an anchor chain easily jumps in a gap, and abrasion of the anchor chain and a pair of shark pincers is accelerated, displacement of the anchor chain is limited from four faces, the locking effect is improved, abrasion is reduced, and working stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship accessories, and more specifically, to a shark clamp chain limiting mechanism for a ship. Background Art

[0002] Shark clamps are a type of marine safety equipment that can hold cables or steel ropes tightly to prevent cables, steel ropes, and anchor chains from sliding, ensuring stable towing operations.

[0003] The shark pliers on the market are usually equipped with limiting mechanisms that can clamp each other on both sides of the moving position of the anchor chain. The hydraulic rod drives the two limiting mechanisms to rotate out of the moving surface of the anchor chain, and the two limiting mechanisms close together from both sides to form a smaller gap in the middle. The gap is only large enough for the anchor chain to pass longitudinally, so that the anchor chain is stuck between the gaps to prevent it from sliding. However, during towing, the anchor chain will fluctuate with the waves, making the chain links stuck in the gaps easy to jump, increasing the wear of the anchor chain and the shark pliers, and reducing the stability of the towing work. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a shark clamp chain limiting mechanism for ships.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A shark clamp chain limiting mechanism for a ship, comprising a shell, wherein two limiting mechanisms 1 are symmetrically installed in the shell, and a gap is formed when the two limiting mechanisms 1 are clamped together, and the width of the gap is equal to the diameter of the chain ring; a limiting mechanism 2 is installed on the shell, and the limiting mechanism 2 is arranged at an interval with the two limiting mechanisms 1, and the two limiting mechanisms 1 are symmetrical about the limiting mechanism 2, and the limiting mechanism 2 can pass through the chain ring from the inner side of the chain ring and extend to the top of the chain ring; two auxiliary limiting mechanisms are symmetrically installed on the shell, and the auxiliary limiting mechanism is arranged on the side of the limiting mechanism 1 facing the sea surface.

[0007] The utility model is further configured as follows: the second limiting mechanism includes a first snap ring and a second snap ring, a mounting column is arranged in the shell, and two slide grooves are jointly provided on the mounting column and the shell, and the two slide grooves are symmetrically arranged on the shell, the first snap ring and the second snap ring are respectively slidably connected with the two slide grooves, the chain ring that is preset to be engaged with the first limiting mechanism is the first chain ring, and the chain ring connected to the first chain ring facing the sea surface is the second chain ring, and the openings of the two slide grooves on the shell are arranged in the ring of the second chain ring.

[0008] The utility model is further configured as follows: both the first and second snap rings are semicircular external gear rings, the first snap ring is meshed with the second snap ring, a motor is installed on the mounting column, a push gear is connected to the output shaft of the motor, the push gear is rotatably installed on the mounting column, and the push gear is meshed with the first snap ring.

[0009] The utility model is further configured as follows: the limiting mechanism includes a rotating plate, the rotating plate is cylindrical, the axis of the rotating plate is rotatably installed in the shell, a limiting plate is arranged on one side of the rotating plate, and when the rotating plate rotates out of the shell, two limiting plates clamp the chain ring.

[0010] The utility model is further configured as follows: a transfer rod is rotatably connected to the other side of the rotating plate, the other end of the transfer rod is rotatably connected to an active rod, the other end of the active rod is rotatably installed in a shell, a hydraulic rod 1 is rotatably installed in the shell, and the output shaft of the hydraulic rod 1 is rotatably connected to the rod body of the active rod.

[0011] The utility model is further configured as follows: the auxiliary limiting mechanism includes a second hydraulic rod, the second hydraulic rod is installed in the shell, the output shaft of the second hydraulic rod is vertically upward and is connected with a stopper, and the stopper can extend to the top of the shell.

[0012] The advantages of the utility model are:

[0013] The limiting mechanism 2 is arranged near the limiting mechanism 1. When the anchor chain needs to be stopped, the hydraulic rod 1 of the limiting mechanism 1 is started, and the two hydraulic rods 1 retract at the same time, and the rotating plate is driven to rotate through the active rod and the transfer rod until the two limiting plates are vertical. The gap formed between the two limiting plates is equal to the diameter of the chain link, that is, when the two limiting plates are vertical, a section of the chain link is just clamped in the longitudinal direction, thereby preventing the movement of the anchor chain. At this time, the chain link adjacent to it is in a horizontal state, and the limiting mechanism 2 is started. The motor drives the clasp 1 and the clasp 2 to rotate by pushing the gear. When the clasp 1 and the clasp 2 rotate out of the shell, they pass through the middle of the corresponding chain link and extend to both sides. The clasp 1 and the clasp 2 cover the chain link from both sides respectively, thereby preventing the anchor chain from jumping in the longitudinal direction, reducing the jumping and slipping of the anchor chain, reducing wear, and improving the stability of the towing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 for Figure 1 The top view shown;

[0016] Figure 3 For along Figure 2 The AA line section is shown;

[0017] Figure 4 For along Figure 2 The BB line cross-section is shown;

[0018] Figure 5 For along Figure 2 The CC line cross-section is shown;

[0019] In the figure: 1. housing; 11. mounting column; 12. slide; 2. limit mechanism 1; 21. rotating plate; 22. hydraulic rod 1; 23. transfer rod; 24. active rod; 25. limit plate; 3. auxiliary limit mechanism; 31. hydraulic rod 2; 32. stopper; 4. limit mechanism 2; 41. snap ring 1; 42. snap ring 2; 43. motor; 44. push gear. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0022] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0023] See also Figure 1-5 , the utility model provides the following technical solutions:

[0024] A shark clamp chain limiting mechanism for a ship, comprising a housing 1, two limiting mechanisms 2 are symmetrically installed in the housing 1, the two limiting mechanisms 2 are stored in the housing 1 when not in use, and when the anchor chain needs to be stopped, the two limiting mechanisms 2 are clamped together to form a gap, and the gap width is equal to the diameter of the chain ring, that is, only one chain ring arranged in the longitudinal direction can pass between the two limiting mechanisms 2, and the chain ring arranged in the longitudinal direction is the first chain ring, and the two chain rings arranged in the transverse direction on both sides of the chain ring are respectively clamped on both sides by the two limiting mechanisms 2, so as to realize the stopping of the anchor chain;

[0025] The one of the two transversely arranged chain links closer to the sea surface is the second chain link. When stopped, the second chain link is located on the housing 1. The housing 1 is provided with a second limiting mechanism 4. The second limiting mechanism 4 is spaced apart from the two limiting mechanisms 1 2. The second limiting mechanism 4 is arranged on the center plane of the two limiting mechanisms 1 2. The second limiting mechanism 4 can pass through the inner side of the second chain link and extend to the top of the second chain link, thereby limiting the longitudinal displacement of the second chain link and preventing the anchor chain from jumping in the longitudinal direction.

[0026] Two auxiliary limiting mechanisms 3 are symmetrically installed on the shell 1. The auxiliary limiting mechanisms 3 are arranged on the side of the limiting mechanism 2 facing the sea surface. When the anchor chain passes through the shark clamp and extends into the sea surface, it passes between the two auxiliary limiting mechanisms 3, which to a certain extent limits the position of the anchor chain on the left and right, preventing the anchor chain from swinging too much and being thrown out of the upper end surface of the shell 1, reducing safety risks, and at the same time reducing the damage of the anchor chain swing to the limiting mechanism 2.

[0027] The limiting mechanism 2 includes a rotating plate 21, which is in a 1 / 4 cylindrical shape. The rotating plate 21 is rotatably mounted in the housing 1 with its axis. A limiting plate 25 is arranged on one of the two radial planes of the rotating plate 21. When the limiting mechanism 2 is not working, the limiting plate 25 is flush with the upper end surface of the housing 1. When the limiting mechanism 2 is working, the limiting plate 25 rotates upward until it is perpendicular to the upper end surface of the housing 1. At this time, a gap is formed between the two limiting plates 25 to clamp the anchor chain.

[0028] A transfer rod 23 is rotatably connected to the other radial side of the rotating plate 21, and the other end of the transfer rod 23 is rotatably connected to the active rod 24. The other end of the active rod 24 is rotatably installed in the shell 1. A hydraulic rod 22 is rotatably installed in the shell 1. The output shaft of the hydraulic rod 22 is rotatably connected to the rod body of the active rod 24. When the limiting mechanism 2 is not working, the hydraulic rod 22 is in an extended state. When the anchor chain needs to be stopped, the hydraulic rod 22 contracts, driving the active rod 24 to rotate upward, and the active rod 24 drives the rotating plate 21 to rotate out of the shell 1 through the transfer rod 23 until the limiting plate 25 is vertical.

[0029] The second limiting mechanism 4 includes a first snap ring 41 and a second snap ring 42. A mounting column 11 is provided in the housing 1. Two slide grooves 12 are provided on the mounting column 11 and the housing 1. The two slide grooves 12 are symmetrically arranged on the housing 1. The first snap ring 41 and the second snap ring 42 are respectively slidably connected with the two slide grooves 12. The openings of the two slide grooves 12 on the housing 1 are arranged in the ring of the second chain link.

[0030] The first snap ring 41 and the second snap ring 42 are both semicircular external gear rings, the first snap ring 41 meshes with the second snap ring 42, a motor 43 is installed on the mounting column 11, a push gear 44 is connected to the output shaft of the motor 43, the push gear 44 is rotatably mounted on the mounting column 11, and the push gear 44 meshes with the first snap ring 41;

[0031] When the limiting mechanism 2 4 is not working, the snap ring 1 41 and the snap ring 2 42 are both stored in the shell 1. When the limiting mechanism 2 4 is started, the motor 43 drives the snap ring 1 41 to rotate by pushing the gear 44, so that the snap ring 1 41 and the snap ring 2 42 are synchronously rotated out of the shell 1, that is, after the snap ring 1 41 and the snap ring 2 42 pass through the middle of the second chain ring, they extend to both sides of the second chain ring respectively, and the snap ring 1 41 and the snap ring 2 42 limit the jumping of the second chain ring from above, thereby improving the stopping effect.

[0032] The auxiliary limiting mechanism 3 includes a hydraulic rod 31, which is installed in the shell 1. The output shaft of the hydraulic rod 31 is vertically upward and connected to a stopper 32. When working, the hydraulic rod 31 pushes the stopper 32 out of the shell 1, and the two stops 32 limit the position of the anchor chain from both sides.

[0033] Specifically, a limiting mechanism 24 is provided near the limiting mechanism 2. When the anchor chain needs to be stopped, the hydraulic rod 22 of the limiting mechanism 2 is started, and the two hydraulic rods 22 are retracted at the same time, and the rotating plate 21 is driven to rotate through the active rod 24 and the transfer rod 23 until the two limiting plates 25 are vertical. The gap formed between the two limiting plates 25 is equal to the diameter of the chain link, that is, when the two limiting plates 25 are vertical, they just clamp a chain link in the longitudinal direction, thereby preventing the movement of the anchor chain. At this time, the chain link adjacent to them is in a horizontal state, and the limiting mechanism 24 is started. The motor 43 drives the snap ring 1 41 and the snap ring 2 42 to rotate by pushing the gear 44. When the snap ring 1 41 and the snap ring 2 42 are rotated out of the housing 1, they pass through the middle of the corresponding chain link and extend to both sides. The snap ring 1 41 and the snap ring 2 42 cover the chain link from both sides respectively, thereby preventing the anchor chain from jumping in the longitudinal direction, reducing the jumping and slipping of the anchor chain, reducing wear, and improving the stability of the towing work.

[0034] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar opposites, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0037] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A shark clamp chain limiting mechanism for a ship, comprising a housing (1), characterized in that: Two limiting mechanisms (1) are symmetrically mounted in the shell (1). When the two limiting mechanisms (1) are clamped together, a gap is formed. The width of the gap is equal to the diameter of the chain ring. A limiting mechanism (2) is mounted on the shell (1). The limiting mechanism (2) is spaced apart from the two limiting mechanisms (2). The two limiting mechanisms (1) are symmetrical about the limiting mechanism (2). The limiting mechanism (2) can pass through the chain ring from the inner side of the chain ring and extend to the top of the chain ring. Two auxiliary limiting mechanisms (3) are symmetrically mounted on the shell (1). The auxiliary limiting mechanism (3) is arranged on the side of the limiting mechanism (2) facing the sea surface.

2. A marine shark clamp chain limiting mechanism according to claim 1, characterized in that: The second limiting mechanism (4) comprises a first snap ring (41) and a second snap ring (42). A mounting column (11) is arranged inside the shell (1). Two slide grooves (12) are provided on the mounting column (11) and the shell (1). The two slide grooves (12) are symmetrically arranged on the shell (1). The first snap ring (41) and the second snap ring (42) are respectively slidably connected to the two slide grooves (12). The chain ring that is pre-set to be engaged with the first limiting mechanism (2) is the first chain ring, and the chain ring that is connected to the first chain ring on the side facing the sea surface is the second chain ring. The openings of the two slide grooves (12) on the shell (1) are arranged inside the rings of the second chain ring.

3. A shark clamp chain limiting mechanism for a ship according to claim 2, characterized in that: The snap ring 1 (41) and the snap ring 2 (42) are both semicircular external gear rings. The snap ring 1 (41) is meshed with the snap ring 2 (42). A motor (43) is installed on the mounting column (11). A driving gear (44) is connected to the output shaft of the motor (43). The driving gear (44) is rotatably installed on the mounting column (11). The driving gear (44) is meshed with the snap ring 1 (41).

4. A shark clamp chain limiting mechanism for a ship according to claim 1, characterized in that: The first limiting mechanism (2) comprises a rotating plate (21), the rotating plate (21) is in the shape of a quarter cylinder, the axis of the rotating plate (21) is rotatably mounted in the housing (1), a limiting plate (25) is arranged on one side of the rotating plate (21), and when the rotating plate (21) is rotated out of the housing (1), two limiting plates (25) clamp the chain ring.

5. A shark clamp chain limiting mechanism for a ship according to claim 4, characterized in that: A transfer rod (23) is rotatably connected to the other side of the rotating plate (21); the other end of the transfer rod (23) is rotatably connected to an active rod (24); the other end of the active rod (24) is rotatably mounted in a housing (1); a hydraulic rod 1 (22) is rotatably mounted in the housing (1); an output shaft of the hydraulic rod 1 (22) is rotatably connected to a rod body of the active rod (24).

6. A shark clamp chain limiting mechanism for a ship according to claim 1, characterized in that: The auxiliary limiting mechanism (3) comprises a second hydraulic rod (31), wherein the second hydraulic rod (31) is installed in the housing (1), and the output shaft of the second hydraulic rod (31) is vertically upward and connected to a stopper (32), wherein the stopper (32) can extend to above the housing (1).

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