Ship fair lead

Abstract

The invention discloses a ship fair lead, and particularly relates to the technical field of ship fair leads, the ship fair lead comprises a bottom plate, a rotation limiting mechanism assembly comprises a first bearing rod, one end of the first bearing rod is rotatably connected with the inner wall of a supporting frame through a bearing, and a limiting hole is formed in a fixing plate in a penetrating mode; a reset spring is arranged between the chuck and the inner top wall of the supporting frame, the outer wall of the chuck is fixedly connected with a pull rod, and a limiting plate is rotationally connected into the bearing seat. The rotary limiting mechanism composed of the chuck, the clamping column, the limiting hole and the reset spring is matched with the exposed pull rod, rapid locking and releasing of the rotating state of the fairlead barrel are achieved, one-hand operation can be achieved without tools, the operation efficiency and the emergency response capacity are greatly improved, the position of the pull rod can be locked in cooperation with the rotatable limiting plate, and the safety of the fairlead barrel is improved. And the situation that limiting is accidentally relieved due to vibration and impact in the ship navigation or operation process is prevented, and the stability and safety of equipment are enhanced.

Description

Technical Field

[0001] This invention relates to the field of ship cable guide technology, specifically a ship cable guide. Background Technology

[0002] A line guide, also known as a line clamp or line hook, is a cable-pulling device used when a ship is moored to guide the mooring line and change its direction to prevent abrasion. It is mainly made of cast iron or cast steel and has a crab-claw-shaped structure. Some have a round stake or roller installed between the two claws. It is mostly installed on the edge of the ship's deck or the lower part of the bulwark. According to the structure, it is divided into line guide clamps, roller line guides, and line guide holes. Line guide clamps are divided into two categories: those without rollers and those with rollers. The former includes straight and inclined structures and is mostly used in small ships; the latter is equipped with single rollers to multiple rollers and is commonly found in medium and large ships to reduce mooring line abrasion.

[0003] Existing ship guides typically employ fixed structures or bolt-locking methods to restrict the rotation of the guide drum. This is cumbersome to operate, requires tools, and cannot achieve rapid unlocking and automatic reset. They also exhibit slow response during emergency cable deployment or angle adjustments, impacting operational efficiency and safety. Furthermore, the lack of an effective locking mechanism for the lever position makes them susceptible to loosening or even failure due to ship vibration, wave impact, or external interference. This not only reduces equipment stability but may also lead to cable derailment or entanglement accidents. It is difficult to balance ease of operation, response speed, and long-term reliability in complex sea conditions. Therefore, existing ship guides require certain improvements. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: Design a ship guide cable device, including a base plate, a support frame fixedly connected to the top of the base plate, an adjustment hole penetrating the side wall of the support frame, and a rotation limiting mechanism assembly inside the adjustment hole. The rotation limiting mechanism assembly includes a first bearing rod, one end of which is rotatably connected to the inner wall of the support frame via a bearing, and the other end of which is fixedly connected to a guide cable cylinder. A fixing plate is fixedly fitted around the outer periphery of the first bearing rod, and a limiting hole is penetrating the fixing plate. A chuck is slidably connected to the inner wall of the support frame in the vertical direction, and a locking pin is fixedly connected to one side of the chuck. The chuck passes through the top wall of the support frame and can be inserted into the limiting hole to restrict the rotation of the cable guide cylinder. A return spring is provided between the chuck and the inner top wall of the support frame. A pull rod is fixedly connected to the outer wall of the chuck. The pull rod passes through the adjustment hole and is slidably connected to the adjustment hole. A bearing seat is fixedly connected to the outer wall of the support frame. A limiting plate is rotatably connected inside the bearing seat. A locking block is provided at the free end of the limiting plate. The locking block is detachably engaged with the pull rod to lock the position of the pull rod. A roller cable guide assembly is fixedly connected to the end of the cable guide cylinder. An adjustment component is provided at the top of the roller cable guide assembly.

[0006] Furthermore, the cable guide cylinder rotates relative to the support frame about a horizontal axis via a first bearing rod, and the fixing plate rotates synchronously with the first bearing rod.

[0007] Furthermore, the chuck maintains an upward movement trend under the elastic force of the return spring, and achieves lifting and lowering movement by sliding the pull rod along the adjustment hole. The return spring also forms a tensile movement with the inner top wall of the support frame through the chuck.

[0008] Furthermore, the locking pin is fixedly connected to the chuck and moves up and down synchronously with it, and after penetrating the top wall of the support frame, the locking pin can selectively insert into or detach from the limiting hole on the fixed plate.

[0009] Furthermore, the roller cable guide assembly includes a first fixing frame, one side of which is fixedly connected to the cable guide cylinder, and a second bearing rod is rotatably connected inside the first fixing frame, with a limiting roller fixedly sleeved on the outer periphery of the second bearing rod.

[0010] Furthermore, symmetrical sliding grooves are provided on both sides of the first fixed frame, and a third bearing rod is slidably connected in the sliding groove. An adjusting roller is rotatably connected to the outer circumference of the third bearing rod, and an adjusting frame is fixedly connected to its end.

[0011] Furthermore, the adjustment assembly includes a second fixed frame fixed to the top of the first fixed frame. A threaded sleeve is fixedly installed inside the second fixed frame. A threaded rod is threadedly connected inside the threaded sleeve. One end of the threaded rod is rotatably connected to the adjustment frame through a bearing, and the other end of the threaded rod is fixedly connected to an adjustment valve.

[0012] The ship guide cable device proposed in this invention has the following advantages: A rotary limiting mechanism consisting of a chuck, locking pin, limiting hole, and return spring, combined with an exposed pull rod, enables rapid locking and one-button release of the guide cable drum's rotational state. It can be operated with one hand without tools, significantly improving operational efficiency and emergency response capabilities. Furthermore, the addition of a rotatable limiting plate with a locking block on the outside of the support frame ensures reliable mechanical locking of the pull rod position, effectively preventing accidental release of the limit due to vibration or impact during ship navigation or operation, thus significantly enhancing the stability and safety of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall angle adjustment structure of the present invention; Figure 3 This is a schematic diagram of the rotating limiting mechanism component of the present invention; Figure 4 This is a schematic diagram of the connection structure between the roller cable guide assembly and the adjustment assembly of the present invention; Figure 5 For the present invention Figure 1 A magnified structural diagram at point A in the diagram.

[0014] In the diagram: 1. Base plate; 2. Support frame; 3. Adjustment hole; 4. Rotation limit mechanism assembly; 401. Bearing rod No. 1; 402. Fixing plate; 403. Limiting hole; 404. Locking pin; 405. Chuck; 406. Return spring; 407. Pull rod; 408. Bearing seat; 409. Limiting plate; 410. Locking block; 5. Cable guide tube; 6. Roller cable guide assembly; 601. Fixing frame No. 1; 602. Bearing rod No. 2; 603. Limiting roller; 604. Slide groove; 605. Bearing rod No. 3; 606. Adjusting roller; 607. Adjusting frame; 7. Adjusting assembly; 701. Fixing frame No. 2; 702. Threaded sleeve; 703. Threaded rod; 704. Adjusting valve. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0018] The structural features of the present invention will now be described in detail with reference to the accompanying drawings.

[0019] See Figures 1-5 The system includes a base plate 1, a support frame 2 fixedly connected to the top of the base plate 1, an adjustment hole 3 through the side wall of the support frame 2, and a rotation limiting mechanism assembly 4 inside the adjustment hole 3. The rotation limiting mechanism assembly 4 includes a first bearing rod 401, one end of the first bearing rod 401 is rotatably connected to the inner wall of the support frame 2 through a bearing, and the other end of the first bearing rod 401 is fixedly connected to a cable guide tube 5. The cable guide tube 5 rotates relative to the support frame 2 around a horizontal axis through the first bearing rod 401, and the fixed plate 402 rotates synchronously with the first bearing rod 401. The first bearing rod 401 ensures that the cable guide tube has low rotational resistance, smooth operation, and long service life. A fixing plate 402 is fixedly sleeved on the outer periphery of the bearing rod 401. A limit hole 403 is opened through the fixing plate 402. A chuck 405 is slidably connected to the inner wall of the support frame 2 in the vertical direction. A locking pin 404 is fixedly connected to one side of the chuck 405. The locking pin 404 passes through the top wall of the support frame 2 and can be inserted into the limit hole 403 to limit the rotation of the cable tube 5. The locking pin 404 is fixedly connected to the chuck 405 and rises and falls synchronously with it. After the locking pin 404 passes through the top wall of the support frame 2, it can selectively insert into or detach from the limit hole 403 on the fixing plate 402. Through the locking pin 404 and the chuck 405, the rising and falling and the limiting action are completely synchronized to avoid lag or misalignment. A return spring 406 is provided between the chuck 405 and the inner top wall of the support frame 2. A pull rod 407 is fixedly connected to the outer wall of the chuck 405. The pull rod 407 passes through the adjustment hole 3 and is slidably connected to the adjustment hole 3. The chuck 405 maintains an upward movement trend under the elastic force of the return spring 406. The lifting and lowering movement is achieved by sliding the pull rod 407 along the adjustment hole 3. The return spring 406 forms a tension movement through the chuck 405 and the inner top wall of the support frame 2. The return spring 406 provides a normally closed automatic return force, which can maintain the locked state without manual intervention. The pull rod 407 and the adjustment hole 3 cooperate to form a clear linear lifting and lowering movement with stable operation and not easy to deviate. A bearing seat 408 is fixedly connected to the outer wall of the support frame 2. A limit plate 409 is rotatably connected inside the bearing seat 408. A locking block 410 is provided at the free end of the limit plate 409. The locking block 410 is detachably engaged with the pull rod 407 to lock the position of the pull rod 407. A roller cable guide assembly 6 is fixedly connected to the end of the cable guide cylinder 5. An adjustment assembly 7 is provided on the top of the roller cable guide assembly 6. The roller cable guide assembly 6 includes a first fixed frame 601. One side of the first fixed frame 601 is fixedly connected to the cable guide cylinder 5. A second bearing rod 602 is rotatably connected inside the first fixed frame 601. A limiting roller 603 is fixedly sleeved on the outer periphery of the second bearing rod 602. Through the second bearing rod 602, the cable is changed from sliding friction to rolling friction during the guiding process, which greatly reduces wear. Sliding grooves 604 are symmetrically opened on both sides of the first fixed frame 601. A third bearing rod 605 is slidably connected inside the sliding grooves 604. An adjustment roller 606 is rotatably connected to the outer periphery of the third bearing rod 605, and an adjustment frame 607 is fixedly connected to its end. The symmetrical sliding grooves 604 design ensures that the adjustment roller is parallel and without deflection during the lifting process, avoiding cable deviation or jamming. The adjustment assembly 7 includes a second fixed frame 701 fixed to the top of the first fixed frame 601. A threaded sleeve 702 is fixedly installed inside the second fixed frame 701. A threaded rod 703 is threadedly connected inside the threaded sleeve 702. One end of the threaded rod 703 is rotatably connected to the adjustment frame 607 through a bearing, and the other end of the threaded rod 703 is fixedly connected to an adjustment valve 704. Fine adjustment can be achieved through the threaded sleeve 702 and the threaded rod 703. The adjustment accuracy is high and the self-locking is good, preventing loosening during use.

[0020] The ship cable guide of the present invention: the base plate 1 is fixed to the deck, and the support frame 2 installed on it constitutes the main frame. The side wall of the support frame 2 is provided with adjustment holes 3, and the internal rotation limit mechanism assembly 4 is integrated. The cable guide cylinder 5 is rotatably connected to the support frame 2 through the first bearing rod 401, and can rotate freely around the horizontal axis to guide the direction of the cable. The fixing plate 402 fixed on the first bearing rod 401 rotates synchronously with the cable guide cylinder, and the limit hole 403 on it serves as the limit reference. Furthermore, under normal conditions, the chuck 405, under the upward elastic force of the return spring 406, drives the locking pin 404 through the top wall of the support frame and into the limiting hole 403, thereby locking the rotational position of the guide cable cylinder 5 and preventing it from rotating accidentally under ship swaying or cable tension. When it is necessary to adjust the guide cable angle, the operator pulls down the pull rod 407 to fix it to the chuck 405 and slide it through the adjustment hole 3, so that the locking pin 404 disengages from the limiting hole 403 and the limiting is released. At this time, the guide cable cylinder 5 can rotate freely to the desired position. After releasing the pull rod, the return spring 406 automatically pushes the chuck 405 to reset and relock. Furthermore, to prevent the pull rod from moving erroneously due to vibration during navigation, a limit plate 409 is rotatably connected to the bearing seat 408 on the outer wall of the support frame. The locking block 410 at its free end can engage with the pull rod 407 to achieve mechanical locking of the pull rod position and ensure that the limit state is stable and reliable. Furthermore, the end of the cable guide cylinder 5 is connected to the roller cable guide assembly 6, which includes a limiting roller 603 fixed in the first fixing frame 601 and an adjustable roller 606 that can be adjusted up and down. The two form a clamping channel to guide the cable and reduce wear. The adjustable roller 606 is slidably installed in the slide groove 604 through the third bearing rod 605 and is connected to the adjustment frame 607. In the top adjustment assembly 7, the rotating adjustment valve 704 drives the threaded rod 703 to move axially in the threaded sleeve 702, thereby pushing or pulling the adjustment frame 607 to precisely adjust the distance between the adjustable roller 606 and the limiting roller 603 to adapt to cables of different diameters.

[0021] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ship guide cable, characterized in that, include: The base plate (1) has a support frame (2) fixedly connected to its top. The side wall of the support frame (2) has an adjustment hole (3) through it, and the adjustment hole (3) has a rotation limiting mechanism assembly (4) inside it. The rotation limiting mechanism assembly (4) includes a first bearing rod (401), one end of which is rotatably connected to the inner wall of the support frame (2) via a bearing, and the other end of which is fixedly connected to a cable tube (5). A fixing plate (402) is fixedly sleeved on the outer periphery of the first bearing rod (401), and a limiting hole (403) is opened through the fixing plate (402). A chuck (405) is slidably connected to the inner wall of the support frame (2) in the vertical direction. A locking pin (404) is fixedly connected to one side of the chuck (405). The locking pin (404) passes through the top wall of the support frame (2) and can be inserted into the limiting hole (403) to limit the rotation of the cable tube (5). A return spring (406) is provided between the chuck (405) and the inner top wall of the support frame (2). A pull rod (407) is fixedly connected to the outer wall of the chuck (405). The pull rod (407) passes through the adjustment hole (3) and is slidably connected to the adjustment hole (3). A bearing seat (408) is fixedly connected to the outer wall of the support frame (2). A limit plate (409) is rotatably connected inside the bearing seat (408). A locking block (410) is provided at the free end of the limit plate (409). The locking block (410) is detachably engaged with the pull rod (407) to lock the position of the pull rod (407). The end of the cable guide tube (5) is fixedly connected to a roller cable guide assembly (6), and the top of the roller cable guide assembly (6) is provided with an adjustment assembly (7).

2. A ship guide cable as described in claim 1, characterized in that, The cable guide tube (5) rotates about the horizontal axis relative to the support frame (2) via the first bearing rod (401), and the fixing plate (402) rotates synchronously with the first bearing rod (401).

3. A ship guide cable as described in claim 1, characterized in that, The chuck (405) maintains an upward movement trend under the elastic force of the return spring (406), and the lifting and lowering movement is achieved by sliding the pull rod (407) along the adjustment hole (3). The return spring (406) forms a stretching movement with the inner top wall of the support frame (2) through the chuck (405).

4. A ship guide cable as described in claim 3, characterized in that, The locking pin (404) is fixedly connected to the chuck (405) and moves up and down synchronously with it. After the locking pin (404) passes through the top wall of the support frame (2), it can selectively insert into or detach from the limiting hole (403) on the fixing plate (402).

5. A ship guide cable as described in claim 1, characterized in that, The roller cable guide assembly (6) includes a first fixing frame (601), one side of which is fixedly connected to the cable guide cylinder (5), and a second bearing rod (602) is rotatably connected inside the first fixing frame (601), and a limiting roller (603) is fixedly sleeved on the outer periphery of the second bearing rod (602).

6. A ship guide cable according to claim 5, characterized in that, The first fixed frame (601) has symmetrically provided sliding grooves (604) on both sides. The third bearing rod (605) is slidably connected in the sliding groove (604). The outer circumference of the third bearing rod (605) is rotatably connected to the adjusting roller (606), and the end of the roller is fixedly connected to the adjusting frame (607).

7. A ship guide cable as described in claim 1, characterized in that, The adjustment assembly (7) includes a second fixed frame (701) fixed to the top of the first fixed frame (601). A threaded sleeve (702) is fixedly installed inside the second fixed frame (701). A threaded rod (703) is threadedly connected inside the threaded sleeve (702). One end of the threaded rod (703) is rotatably connected to the adjustment frame (607) through a bearing, and the other end of the threaded rod (703) is fixedly connected to an adjustment valve (704).

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