Shark pincers with protection function

Abstract

The utility model relates to the technical field of ship accessories, and discloses a pair of shark pincers with a protection function, which comprises a shell, two limiting columns are arranged on one side, which is preset to deviate from a ship body, of the shell, the limiting columns can extend out of the shell, two pincer claws are symmetrically arranged on the other side of the shell, the pincer claws are in the shape of a right-angle fan, and the limiting columns can extend out of the shell. The center end of the gripper arm is rotationally connected with the shell, the other end of one side of the gripper arm is rotationally connected with a main driving mechanism, an auxiliary driving mechanism is connected to the main driving mechanism, and the main driving mechanism and the auxiliary driving mechanism can control the other side of the gripper arm to be flush with or perpendicular to the table top of the shell. The device solves the problems that the jaw cannot be opened when the hydraulic rod loses pressure, and the potential safety hazard is large when the shark pincers are maintained in a working state, the auxiliary driving mechanism is used for replacing the hydraulic rod, the function of the shark pincers can be maintained, the shark pincers can be maintained in a safe environment, and the safety performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of marine parts technology, and more specifically, it relates to a shark pliers with protective functions. Background Technology

[0002] Shark clamps are marine safety devices that can hold cables or steel ropes tightly to prevent them from slipping and ensure stable towing operations.

[0003] To prevent the jaws from loosening and causing safety issues when the hydraulic system loses pressure, the jaws are usually fixed at the dead point of the crank-connecting rod mechanism. However, it is difficult to repair the hydraulic system when the jaws are gripping the cable, which can easily cause the jaws to come loose. Furthermore, if the hydraulic system fails before gripping the cable, the shark pliers cannot effectively and promptly hold the cable in place, which may pose a safety hazard. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a shark pliers with protective function.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A shark claw with protective function includes a shell. Two limiting posts are provided on one side of the shell away from the hull. The limiting posts can extend out of the shell. Two claws are symmetrically arranged on the other side of the shell. The claws are in the shape of right-angled fans. The center end of the claws is rotatably connected to the shell. The other end of one side of the claw is rotatably connected to a main drive mechanism. A secondary drive mechanism is connected to the main drive mechanism. Both the main drive mechanism and the secondary drive mechanism can control the other side of the claw to be flush with or perpendicular to the platform of the shell.

[0007] The present invention is further configured such that: the main drive mechanism includes an active connecting rod, one end of the active connecting rod is rotatably mounted on the housing, the other end of the active connecting rod is rotatably connected to a connecting rod, the other end of the connecting rod is connected to a jaw, a hydraulic rod is installed inside the housing, and the output shaft of the hydraulic rod is rotatably connected to the middle position of the active connecting rod.

[0008] The present invention is further configured such that: the auxiliary drive mechanism includes a lever, the lever is rotatably mounted in the housing, one end of the lever is rotatably connected to a connecting rod two, the other end of the connecting rod two is rotatably connected to the middle position of the active connecting rod, the other end of the lever is equipped with a motor, the motor is equipped with a drive gear, the bottom of the housing is provided with a track one, the track one is arc-shaped facing the lever, the center of the track one overlaps with the rotation center of the lever, the arc-shaped surface of the track one is provided with teeth, and the drive gear meshes with the teeth of the track one.

[0009] The present invention is further configured such that the length of the lever at the end facing the motor is greater than the length of the lever at the end facing the connecting rod.

[0010] The present invention is further configured such that: the motor and the drive gear are respectively disposed on both sides of the lever; a second track is provided at the bottom of the housing; the side of the second track facing the lever is configured as an arc concentric with the track; and the outer wall of the motor is slidably connected to the second track.

[0011] The present invention is further configured such that: a limiting rod is provided inside the housing, and when the main drive mechanism reaches the dead point position, the active connecting rod abuts against the limiting rod.

[0012] The advantages of this utility model are:

[0013] It is equipped with a secondary drive mechanism. The output end of the secondary drive mechanism is connected to the active linkage. When the motor is started, the drive gear crawls along track one, thereby driving the lever to rotate. The lever pushes the active linkage to move through linkage two. That is, the secondary drive mechanism replaces the function of the hydraulic rod. When the hydraulic rod loses pressure, it can drive the claws to extend or retract into the shell, realizing the function of the shark claw. It can be repaired in a safe environment, reducing safety hazards. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0015] Figure 2 For along Figure 1 The cross-sectional view along line AA is shown below;

[0016] Figure 3 for Figure 2 Enlarged view of section C shown;

[0017] Figure 4 For along Figure 1 The BB line cross-section shown;

[0018] In the diagram: 1. Housing; 2. Limiting post; 3. Claw; 4. Main drive mechanism; 41. Hydraulic rod; 42. Active connecting rod; 43. Connecting rod one; 5. Secondary drive mechanism; 51. Track one; 52. Lever; 53. Connecting rod two; 54. Drive gear; 55. Motor; 56. Track two; 6. Limiting rod. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Please see Figure 1-4 The present invention provides the following technical solution:

[0023] A shark grappling hook with protective function includes a shell 1. Two limiting posts 2 are set on the side of the shell 1 opposite to the hull. The limiting posts 2 can extend out of the shell 1 to guide and limit the cable. Two claws 3 are symmetrically arranged on the other side of the shell 1. The claws 3 are right-angled fan-shaped. The center end of the claws 3 is rotatably connected to the shell 1. The other end of one side of the claws 3 is rotatably connected to a main drive mechanism 4. A secondary drive mechanism 5 is connected to the main drive mechanism 4. Both the main drive mechanism 4 and the secondary drive mechanism 5 can control the other side of the claws 3 to be flush with or perpendicular to the platform of the shell 1. Under normal conditions, the claws 3 are controlled by the main drive mechanism 4 to clamp and release the cable. When the main drive mechanism 4 is accidentally damaged, the secondary drive mechanism 5 is activated. The secondary drive mechanism 5 temporarily replaces the main drive mechanism 4 to control the claws 3 to realize the function of the shark grappling hook. Thus, the shark grappling hook can be repaired in a safe environment with the cable fixed, thereby improving safety performance.

[0024] The main drive mechanism 4 includes an active connecting rod 42. One end of the active connecting rod 42 is rotatably mounted on the housing 1, and the other end of the active connecting rod 42 is rotatably connected to a connecting rod 43. The other end of the connecting rod 43 is connected to the jaws 3. A hydraulic rod 41 is installed inside the housing 1. The output shaft of the hydraulic rod 41 is rotatably connected to the middle position of the active connecting rod 42. The main drive mechanism 4 is a conventional crank-connecting rod mechanism. In the working state, the jaws 3 are at the dead point position of the crank-connecting rod mechanism.

[0025] The auxiliary drive mechanism 5 includes a lever 52, which is rotatably mounted inside the housing 1. One end of the lever 52 is rotatably connected to a connecting rod 53, and the other end of the connecting rod 53 is rotatably connected to the middle position of the active connecting rod 42. A motor 55 is mounted on the other end of the lever 52, and a drive gear 54 is mounted on the motor 55. A track 51 is provided at the bottom of the housing 1. The track 51 is arc-shaped towards the lever 52, and the center of the track 51 overlaps with the rotation center of the lever 52. Teeth are arranged on the arc-shaped surface of the track 51, and the drive gear 54 meshes with the teeth of the track 51.

[0026] When the motor 55 starts, the drive gear 54 rotates and crawls along the track 1 51, thereby driving the lever 52 to rotate. The lever 52 pushes the connecting rod 2 53 at the other end, and the connecting rod 2 53 drives the active connecting rod 42 to rotate, which in turn drives the claw 3 to rotate, so that the claw 3 rotates out of the housing 1 to clamp the cable or retracts into the housing 1 to release the cable. That is, the auxiliary drive mechanism 5 can replace the function of the hydraulic rod 41 and realize the function of the shark claw when the hydraulic rod 41 is damaged, so as to repair the shark claw in a safe environment and prevent accidents.

[0027] The length of the lever 52 towards the motor 55 is greater than the length of the lever 52 towards the connecting rod 53. The lever 52 can reduce the driving force required to lift the jaw 3, reduce the load on the motor 55 and the drive gear 54, reduce wear, and extend service life.

[0028] The motor 55 and the drive gear 54 are respectively located on both sides of the lever 52. The bottom of the housing 1 is provided with a second track 56. The side of the second track 56 facing the lever 52 is set as an arc concentric with the first track 51. The outer wall of the motor 55 is slidably connected to the second track 56. The second track 56 provides additional support for the motor 55 to maintain the balance of the lever 52.

[0029] A limit rod 6 is provided inside the housing 1. When the main drive mechanism 4 reaches the dead point position, the active connecting rod 42 abuts against the limit rod 6. The limit rod 6 can ensure the position of the claw 3 when it is raised. By using the principle of the dead point of the crank connecting rod mechanism, the claw 3 is prevented from retracting under external force, thus ensuring the stability of the shark claw in gripping the cable.

[0030] Specifically, a secondary drive mechanism 5 is provided. The output end of the secondary drive mechanism 5 is connected to the active connecting rod 41. When the motor 55 is started, the drive gear 54 crawls along the first track 51, thereby driving the lever 52 to rotate. The lever 52 pushes the active connecting rod 42 to move through the second connecting rod 53. That is, the secondary drive mechanism 5 replaces the function of the hydraulic rod 41. When the hydraulic rod 41 loses pressure, it can drive the claw 3 to extend or retract into the housing 1, realizing the function of the shark claw. The shark claw can be repaired in a safe environment, reducing safety hazards.

[0031] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar counterparts and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shark claw with protective function, comprising a shell (1), characterized in that: The shell (1) is provided with two limiting posts (2) on the side opposite to the hull. The limiting posts (2) can extend out of the shell (1). Two claws (3) are symmetrically arranged on the other side of the shell (1). The claws (3) are in the shape of right-angled fans. The center end of the claws (3) is rotatably connected to the shell (1). The other end of one side of the claws (3) is rotatably connected to a main drive mechanism (4). A secondary drive mechanism (5) is connected to the main drive mechanism (4). Both the main drive mechanism (4) and the secondary drive mechanism (5) can control the other side of the claws (3) to be flush with or perpendicular to the platform of the shell (1). The main drive mechanism (4) includes an active connecting rod (42). One end of the active connecting rod (42) is rotatably mounted on the shell (1). The other end of the active connecting rod (42) is rotatably connected to a connecting rod (43). The other end of the connecting rod (43) is connected to the claws (3). A hydraulic rod (41) is installed inside the housing (1). The output shaft of the hydraulic rod (41) is rotatably connected to the middle position of the active connecting rod (42). The auxiliary drive mechanism (5) includes a lever (52). The lever (52) is rotatably installed inside the housing (1). One end of the lever (52) is rotatably connected to a connecting rod (53). The other end of the connecting rod (53) is rotatably connected to the middle position of the active connecting rod (42). A motor (55) is installed at the other end of the lever (52). A drive gear (54) is installed on the motor (55). A track (51) is provided at the bottom of the housing (1). The track (51) is arc-shaped towards the lever (52). The center of the track (51) overlaps with the rotation center of the lever (52). Teeth are arranged on the arc surface of the track (51). The drive gear (54) meshes with the teeth of the track (51).

2. The shark claw with protective function according to claim 1, characterized in that: The length of the lever (52) towards the motor (55) is greater than the length of the lever (52) towards the connecting rod (53).

3. A shark claw with protective function according to claim 2, characterized in that: The motor (55) and the drive gear (54) are respectively located on both sides of the lever (52). The bottom of the housing (1) is provided with a second track (56). The side of the second track (56) facing the lever (52) is set as an arc concentric with the first track (51). The outer wall of the motor (55) is slidably connected to the second track (56).

4. A shark claw with protective function according to claim 3, characterized in that: A limit rod (6) is provided inside the housing (1). When the main drive mechanism (4) reaches the dead point position, the active connecting rod (42) abuts against the limit rod (6).

Images