Improved float-cleaning ship chain controller

Abstract

The utility model provides an improved float-cleaning ship chain stopper which comprises a fixing seat and two clamping arms capable of swinging on the fixing seat, inward concave parts are arranged on the opposite faces of the two clamping arms, the inward concave parts are used for clamping an anchor chain link, a rotatable rotating pin is arranged at the end of each clamping arm, a double-thread screw is further arranged, the two ends of the double-thread screw are in threaded connection with the rotating pins of the clamping arms respectively, and the two ends of the double-thread screw are in threaded connection with the rotating pins of the clamping arms respectively. The two ends of the double-thread screw are opposite in thread screwing direction, the two ends of the double-thread screw are sleeved with the lock nuts in threaded connection respectively, the ends of the lock nuts abut against the outer side walls of the clamping arms, and the problem that a screw thread of a traditional chain controller is prone to losing efficacy, and consequently the chain controller is difficult to fix an anchor chain is solved.

Description

Technical Field

[0001] The utility model relates to the field of ship anchoring, in particular to a modified chain stopper for floating clearing ships. Background Art

[0002] As one of the "four engines (main engine, auxiliary engine, steering engine, anchor windlass)" of a ship, the anchor windlass plays an important role in ship equipment. It plays a huge role in fixing the ship's position, assisting in turning around, berthing and leaving the dock, slowing down the ship, and emergency avoidance. The ship's chain stopper is a device that locks the anchor chain of the anchor windlass and brakes the anchor chain. It is a key device in the ship's anchor equipment. The chain stopper equipped with each anchor chain is used to stop or clamp the anchor chain, bear the tension of the anchor chain, and transfer the mooring load to the hull structure, so that the anchor windlass is in a stress-free state.

[0003] Traditional chain stoppers generally include a fixed part and a clamping part, which are fixed by screws, lead screws and other threaded connection modes. Since some pontoons have been in service for a long time and the threads are seriously aged, the fixed lead screws or screws may loosen during use, causing the chain stopper buckle to automatically disengage frequently and fail to perform its normal function, posing a major safety hazard to the safety of ship operating personnel as well as ship equipment and the environment. Utility Model Content

[0004] The utility model provides a modified chain stopper for floating cleaning ships, which solves the problem that the thread of a traditional chain stopper is easy to fail, resulting in the difficulty of the chain stopper in fixing the anchor chain.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a modified chain stopper for floating cleaning ships, including a fixed seat, two swingable clamping arms on the fixed seat, the two clamping arms have opposite surfaces with recessed portions, the recessed portions are used to clamp the anchor chain links, and each clamping arm end is provided with a rotatable rotating pin, and a double-headed screw is also provided, the two ends of the double-headed screw are respectively threadedly connected to the rotating pin of each clamping arm, the threads at the two ends of the double-headed screw have opposite rotation directions, and the two ends of the double-headed screw are respectively covered with threaded lock nuts, and the ends of the lock nuts are against the outer walls of the clamping arms.

[0006] In the preferred solution, a retractable arc-shaped ejector pin is provided in the clamp arm, one end of the arc-shaped ejector pin is used to be inserted into the anchor chain link ring, and the other end of the arc-shaped ejector pin in the clamp arm is provided with a tightening column, which is threadedly connected to the clamp arm, and a disc spring group is provided between the arc-shaped ejector pin and the tightening column.

[0007] In the preferred solution, the arc-shaped ejector pin and the opposite ends of the jacking column are respectively provided with recessed grooves, and a central rod is provided in the recessed groove of the jacking column, and the central rod is sleeved with the disc spring assembly.

[0008] In a preferred solution, a locking screw is further provided in the clamp arm, the locking screw is threadedly connected to the clamp arm, and the end of the locking screw abuts against the outer wall of the tightening column.

[0009] In the preferred solution, a speed limiting wheel device is also provided on one side of the clamp chain device, and the speed limiting wheel device includes a link seat, a retractable side baffle is provided on the upper end of the link seat, link seats are provided on both sides of the side baffle, the side baffle is provided with a central rotating shaft, and undulating parts are provided at both ends of the central rotating shaft. A spring plunger is also provided on the link seat, a rollable ball is provided at one end of the spring plunger, a tail plug is also provided in the spring plunger, and a spring is provided between the tail plug and the ball.

[0010] In a preferred solution, the tail plug is threadedly connected to the inner wall of the spring plunger housing.

[0011] The beneficial effects of the utility model are as follows: the clamp arms can be fixed to any opening by means of the double clamp arms and the double-headed screw rod in cooperation with the rotating pin; the equipped lock nut can fix the double-headed screw rod for a second time, thereby increasing the number of threads in disguised form; even if the rotating pin and the double-headed screw thread fail, the clamp arms can still be kept closed by relying on the lock nuts on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the implementation position of the utility model.

[0014] Figure 2 It is a main structure schematic diagram of the utility model.

[0015] Figure 3 It is a schematic diagram of the end of the inner concave portion of the utility model.

[0016] Figure 4 It is a cross-sectional view of the arc-shaped ejector pin of the utility model.

[0017] Figure 5 It is a schematic diagram of a speed limiting wheel device of the utility model.

[0018] Figure 6 It is a schematic diagram of the end portion of the undulating portion of the central rotating shaft of the utility model.

[0019] In the figure: the chain clamp device 1; the fixed seat 101; the clamp arm 102; the inner recess 103; the rotating pin 2; the double-headed screw 3; the lock nut 4; the operating handle 5; the arc-shaped ejector pin 6; the tightening column 601; the hexagonal portion 602; the central rod 603; the disc spring group 604; the locking screw 605; the anchor chain link 7; the speed limiting wheel device 8; the follower wheel 801; the side baffle 802; the link seat 803; the central rotating shaft 804; the undulating portion 805; the spring plunger 806; the ball 807; the spring 808; the tail plug 809; the sticker 810; the anchor chain chute 9. DETAILED DESCRIPTION

[0020] like Figure 1-6In the invention, a modified chain stopper for floating cleaning ships is disclosed, comprising a fixing seat 101, two swingable clamping arms 102 on the fixing seat 101, inner recesses 103 are provided on opposite surfaces of the two clamping arms 102, the inner recesses 103 are used to clamp the anchor chain link 7, a rotatable rotating pin 2 is provided at the end of each clamping arm 102, and a double-headed screw 3 is also provided, the two ends of the double-headed screw 3 are respectively threadedly connected with the rotating pin 2 of each clamping arm 102, the threads at the two ends of the double-headed screw 3 are rotated in opposite directions, and threaded lock nuts 4 are respectively sleeved on the two ends of the double-headed screw 3, and the ends of the lock nuts 4 are against the outer walls of the clamping arms 102.

[0021] The chain stopper is installed on the side of the anchor machine close to the slide barrel, and fixes the anchor chain by clamping the anchor chain.

[0022] One end of the double-headed screw rod 3 is provided with a quadrilateral end, which can be sleeved with an operating handle 5 for easy manual rotation.

[0023] In the preferred embodiment, a retractable arc-shaped ejector pin 6 is provided in the clamp arm 102, one end of the arc-shaped ejector pin 6 is used to be inserted into the anchor chain link 7 ring, and the other end of the arc-shaped ejector pin 6 in the clamp arm 102 is provided with a tightening column 601, which is threadedly connected to the clamp arm 102, and a disc spring group 604 is provided between the arc-shaped ejector pin 6 and the tightening column 601.

[0024] The arc-shaped ejector pin 6 is slidably sleeved with the clamp arm 102 , and two ends of the disc spring assembly 604 respectively abut against the arc-shaped ejector pin 6 and the tightening column 601 , so that the arc-shaped ejector pin 6 can be limitedly extended and retracted.

[0025] Initially, the double-headed screw 3 is rotated to keep a certain gap between the two clamping arms 102, and the anchor chain is loosened. When the anchor chain falls, each anchor chain link 7 forms a certain resistance when hitting the arc-shaped ejector pin 6, which appropriately slows down the falling speed of the anchor chain. The arc-shaped ejector pin 6 retracts slightly by the impact, which buffers the impact force and prolongs the service life.

[0026] The outer end of the tightening column 601 is provided with a hexagonal portion 602 to facilitate twisting with a wrench.

[0027] When the anchor chain is lowered, the double-headed screw rod 3 is rotated in the opposite direction, and the upper ends of the two clamping arms 102 are closed. Since the inner concave portion 103 is closer to the hinged end of the clamping arm 102, a force-saving lever is formed to clamp the anchor chain link 7. At this time, the hexagonal portion 602 is rotated so that the end of the hexagonal portion 602 abuts against the arc-shaped ejector pin 6, and the arc-shaped ejector pin 6 can no longer be extended or retracted. The arc-shaped ejector pin 6 is partially inserted into the ring buckle of the anchor chain link 7 to prevent the anchor chain link 7 from being pulled and dislocated, so that the anchor chain is fixed more reliably.

[0028] In a preferred embodiment, the arc-shaped ejector pin 6 and the opposite ends of the jacking column 601 are respectively provided with recessed grooves, and a central rod 603 is provided in the recessed groove of the jacking column 601 , and the central rod 603 is sleeved with the disc spring assembly 604 .

[0029] The central rod 603 prevents part of the disc spring from escaping from the gap between the tightening column 601 and the arc-shaped ejector pin 6 , and clamps the arc-shaped ejector pin 6 and the tightening column 601 .

[0030] In a preferred solution, a locking screw 605 is further provided in the clamp arm 102 . The locking screw 605 is threadedly connected to the clamp arm 102 , and the end of the locking screw 605 abuts against the outer wall of the tightening column 601 .

[0031] When the hexagonal portion 602 abuts against the arc-shaped ejector pin 6, the locking screw 605 is rotated to tighten the ejector column 601 to prevent the ejector column 601 from loosening.

[0032] In the preferred embodiment, a speed limiting wheel device 8 is also provided on one side of the clamp chain device 1, and the speed limiting wheel device 8 includes a link seat 803, a retractable side baffle 802 is provided on the upper end of the link seat 803, link seats 803 are provided on both sides of the side baffle 802, the side baffle 802 is provided with a central rotating shaft 804, and undulating portions 805 are provided at both ends of the central rotating shaft 804. A spring plunger 806 is also provided on the link seat 803, a rollable ball 807 is provided at one end of the spring plunger 806, a tail plug 809 is also provided in the spring plunger 806, and a spring 808 is provided between the tail plug 809 and the ball 807.

[0033] The central rotating shaft 804 is integrally connected with the follower wheel 801 and rotates synchronously. The end is inserted into the large sleeve at the upper end of the link seat 803, and the spring plunger 806 is threadedly connected with the wall of the sliding sleeve.

[0034] In a preferred embodiment, the tail plug 809 is threadedly connected to the inner wall of the shell of the spring plunger 806 .

[0035] One end of the ball 807 is provided with a sticking block 810, and the two ends of the spring 808 respectively abut against the tail plug 809 and the sticking block 810. Rotation can adjust the depth of the tail plug 809, adjust the initial holding force of the spring 808, and then affect the pressing force of the ball 807 on the undulating part 805.

[0036] After passing through the chain clamp device 1, the anchor chain goes around the follower wheel 801 for one or two turns, and then is lowered through the anchor chain chute 9. Since the end of the central rotating shaft 804 is provided with an undulating portion 805, and the outer wall of the undulating portion 805 is regularly undulating, when the central rotating shaft 804 rotates rapidly with the follower wheel 801, the ball 807 is frequently squeezed, and the faster the speed, the higher the frequency. Therefore, the ball 807 has a certain inhibitory effect on the rotation of the follower wheel 801, and can maintain the speed within a certain range, effectively preventing the anchor chain from being lowered too quickly.

[0037] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A modified chain stopper for a floating cleaning ship, characterized by: The invention comprises a fixing seat (101), two swingable clamping arms (102) on the fixing seat (101), the two clamping arms (102) having opposite surfaces provided with inner recesses (103), the inner recesses (103) being used for clamping the anchor chain link (7), the ends of each clamping arm (102) being provided with a rotatable rotating pin (2), and a double-headed screw (3), the two ends of the double-headed screw (3) being respectively threadedly connected to the rotating pin (2) of each clamping arm (102), the two ends of the double-headed screw (3) having opposite threaded directions, the two ends of the double-headed screw (3) being respectively sleeved with threaded lock nuts (4), the ends of the lock nuts (4) being against the outer side walls of the clamping arms (102).

2. The modified floating cleaning ship chain stopper according to claim 1 is characterized by: A retractable arc-shaped ejector pin (6) is provided in the clamp arm (102), one end of the arc-shaped ejector pin (6) is used to be inserted into the ring of the anchor chain link (7), and a tightening column (601) is provided at the other end of the arc-shaped ejector pin (6) in the clamp arm (102). The tightening column (601) is threadedly connected to the clamp arm (102), and a disc spring assembly (604) is provided between the arc-shaped ejector pin (6) and the tightening column (601).

3. The modified floating cleaning ship chain stopper according to claim 2 is characterized by: The arc-shaped ejector pin (6) and the opposite ends of the tightening column (601) are respectively provided with recessed grooves, a central rod (603) is provided in the recessed groove of the tightening column (601), and the central rod (603) is sleeved with the disc spring assembly (604).

4. The modified floating cleaning ship chain stopper according to claim 2 is characterized by: A locking screw (605) is also provided in the clamp arm (102), the locking screw (605) being threadedly connected to the clamp arm (102), and the end of the locking screw (605) abuts against the outer wall of the tightening column (601).

5. The modified floating cleaning ship chain stopper according to claim 1 is characterized by: A speed limiting wheel device (8) is also provided on one side of the clamp chain device (1). The speed limiting wheel device (8) comprises a link seat (803). A retractable side baffle (802) is provided on the upper end of the link seat (803). Link seats (803) are provided on both sides of the side baffle (802). The side baffle (802) is provided with a central rotating shaft (804). Both ends of the central rotating shaft (804) are provided with undulating portions (805). A spring plunger (806) is also provided on the link seat (803). A rollable ball (807) is provided at one end of the spring plunger (806). A tail plug (809) is also provided in the spring plunger (806). A spring (808) is provided between the tail plug (809) and the ball (807).

6. The modified floating cleaning ship chain stopper according to claim 5 is characterized by: The tail plug (809) is threadedly connected to the inner wall of the shell of the spring plunger (806).

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