A cable limiter device

Abstract

The utility model discloses a kind of cable limiting devices, including guide cylinder, the inner hole of guide cylinder is tapered hole, guide cylinder is axially and uniformly distributed with at least two sliding grooves along the inner wall of tapered hole, each sliding groove is slidably mounted with limiting block, guide cylinder is installed with baffle ring at the big end side of tapered hole, limiting block is connected with pull rod at the big end side of tapered hole, and pull rod passes through baffle ring movably, spring is sleeved on pull rod, one end of spring abuts against limiting block, the other end abuts against baffle ring;The passage for passing through cable is between the limiting block, when limiting block moves to the little end side of tapered hole, limiting block can clamp cable.The utility model can clamp cable by limiting block sliding, to prevent cable rebound after breakage, reduce safety risk.

Description

Technical Field

[0001] This utility model relates to the field of marine safety facilities technology, and in particular to a cable limiting device. Background Technology

[0002] Current technologies lack adequate emergency response measures for broken ship mooring lines. Once a mooring line breaks, due to its enormous inertia and elastic potential energy, it often rebounds rapidly. If personnel are working near the mooring line reel, the rebounding line can cause injury. Therefore, developing a limiting device that effectively ensures the safety of the mooring line, especially one that effectively controls its movement when it breaks, has become an urgent problem to be solved.

[0003] In the prior art, KR20160000025U discloses a ship anti-rebound mooring device, which prevents the cable from rebounding after it breaks by setting guide rollers, cable guides and protective sleeves. However, the shortcoming is that when the cable breaks outside the cable guide, the cable guide cannot limit the cable. There is a possibility of rebound in the section of cable between the cable reel and the cable guide, which poses a significant safety risk. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the problems existing in the background art and provide a cable limiting device that can clamp the cable by sliding the limiting block, thereby preventing the cable from snapping and rebounding, and reducing safety risks.

[0005] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: A cable limiting device includes a guide cylinder, the inner hole of which is a conical hole. At least two sliding grooves are axially and evenly distributed along the inner wall of the conical hole. Limiting blocks are slidably installed in each sliding groove. A retaining ring is installed on the guide cylinder at the larger end of the conical hole. A pull rod is connected to the limiting block at the larger end of the conical hole, and the pull rod moves through the retaining ring. A spring is fitted on the pull rod, with one end of the spring abutting against the limiting block and the other end abutting against the retaining ring. The limiting blocks have a channel for the cable to pass through. When the limiting block moves towards the smaller end of the conical hole, the limiting block can clamp the cable.

[0006] The bottom of the chute is provided with a guide limiting groove, the width of which is greater than the width of the chute. The end of the limiting block located in the chute is provided with a guide slider, which is slidably installed in the guide limiting groove. The side of the limiting block that holds the cable is an arc surface adapted to the cable.

[0007] The arc surface is provided with patterns or protrusions to increase friction.

[0008] The limiting block has a traction hole on one side of the large end of the conical hole. The traction hole is connected to the end of the limiting block through a connecting hole. Both the traction hole and the connecting hole have a certain depth, and the width of the traction hole is greater than the width of the connecting hole. The end of the pull rod connected to the limiting block is provided with a limiting part, which is placed in the traction hole.

[0009] The traction hole is circular, and the limiting part is a spherical structure.

[0010] The end of the pull rod that passes through the retaining ring is connected and fixed to the pull ring.

[0011] The pull ring has a first clearance hole at its center, and a pull rod connecting hole is provided on the pull ring outside the first clearance hole. The end of the pull rod extending out of the retaining ring is provided with a screw part, and a nut is installed on the screw part after passing through the pull rod connecting hole. A handle is installed on the outside of the pull ring.

[0012] The retaining ring has a second clearance hole at its center, and mounting holes are evenly distributed in an annular pattern on the outer side of the retaining ring. Pull rod guide holes are evenly distributed in an annular pattern between the second clearance hole and the mounting hole. The guide cylinder has a threaded hole at its end. The threaded end of the screw passes through the mounting hole and is then screwed into the threaded hole for fixation. The pull rod slides through the pull rod guide hole.

[0013] The outer wall of the guide cylinder is provided with a connecting platform, and a mounting base is installed on the connecting platform. The mounting base is used to install and fix the guide cylinder.

[0014] The mounting base includes a support sleeve and a support shaft. The support sleeve is rotatably mounted on the support shaft. The upper end of the support sleeve is provided with a first flange, which is connected to the connecting platform. The lower end of the support shaft is provided with a second flange. A limit plate is installed on the upper end of the support shaft, and the limit plate cooperates with the support sleeve to limit movement.

[0015] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0016] 1. In use, the cable passes through the conical hole and the channel between each limiting block. The right end of the cable is wound around the cable reel, and the left end extends to the shore. When the cable passes from right to left, the limiting block compresses the spring and moves to the left. At this time, the channel between each limiting block increases, and the cable can pass through smoothly. When the left end of the cable breaks, the right end of the cable will spring back. At this time, the right end of the cable tends to move to the right, and the limiting block moves to the right under the action of the spring. Since the inner hole of the guide cylinder is a conical hole with a larger diameter at the left end and a smaller diameter at the right end, when the limiting block slides to the right, the channel between each limiting block decreases, which can clamp the cable and prevent the cable from springing back after breaking, thus reducing the safety risk.

[0017] 2. This utility model features a handle on the pull ring, which is connected and fixed to each pull rod. By pulling the handle outward, the pull ring is pulled to the left. The pull ring simultaneously drives each pull rod to pull the limiting block. After the limiting block moves to the left, the channel between the limiting blocks increases, making it easier to remove the cable.

[0018] 3. The outer wall of the guide tube of this utility model is provided with a connecting platform, and an mounting seat is installed on the connecting platform. The mounting seat is used to install and fix the guide tube.

[0019] 4. The support sleeve of this utility model is rotatably mounted on the support shaft, and the limiting plate cooperates with the support sleeve to limit the movement, so that the support sleeve can rotate on the support shaft, thereby allowing the guide cylinder to swing and adjust its angle to adapt to the angle of the cable. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0021] Figure 1 This is a three-dimensional structural diagram showing how the cable passes through this utility model.

[0022] Figure 2 This is a cross-sectional structural diagram showing the cable passing through this utility model.

[0023] Figure 3 This is a three-dimensional structural diagram of the guide cylinder in this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the limiting block in this utility model.

[0025] Figure 5 This is a three-dimensional structural diagram of the pull rod in this utility model.

[0026] Figure 6 This is a three-dimensional structural diagram of the retaining ring of this utility model.

[0027] Figure 7 This is a three-dimensional structural diagram of the pull ring in this utility model.

[0028] Figure 8 This is a diagram illustrating the moment when the cable breaks.

[0029] Figure label:

[0030] Cable 1;

[0031] Guide cylinder 10, tapered hole 11, sliding groove 12, guide limiting groove 13, threaded hole 14, connecting platform 15;

[0032] Limiting block 20, guide slider 21, arc surface 22. Pulling hole 23, connecting hole 24;

[0033] Pull rod 30, limiting part 31, screw part 32;

[0034] 40 retaining ring, 41 second clearance hole, 42 mounting hole, 43 pull rod guide hole;

[0035] Pull ring 50, first clearance hole 51, pull rod connecting hole 52, handle 53;

[0036] Spring 60, nut 70;

[0037] Mounting base 80, support sleeve 81, first flange 811, support shaft 82, second flange 821, self-lubricating bushing 83, and limiting plate 84. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0040] Example 1:

[0041] See Figure 1-8 A cable limiting device includes a guide cylinder 10 with a tapered inner hole 11. At least two grooves 12 are axially and evenly distributed along the inner wall of the tapered hole 11. Limiting blocks 20 are slidably installed in each groove 12. A retaining ring 40 is installed on the larger end of the tapered hole 11 of the guide cylinder 10. A pull rod 30 is connected to the larger end of the limiting block 20, and the pull rod 30 moves through the retaining ring 40. A spring 60 is fitted on the pull rod 30, with one end abutting against the limiting block 20 and the other end abutting against the retaining ring 40. Each limiting block 20 has a channel for a cable 1 to pass through. When the limiting block 20 moves towards the smaller end of the tapered hole 11, it clamps the cable 1. The sliding of the limiting block 20 clamps the cable 1, preventing it from snapping and rebounding, thus reducing safety risks.

[0042] Specifically, see Figure 2 The cable 1 passes through the channel between the conical hole 11 and each limiting block 20, so as to... Figure 2 In the orientation of the cable 1, the right end is wound around the cable reel, and the left end extends to the shore. When the cable 1 passes from right to left, the limiting block 20 compresses the spring 60 and moves to the left. At this time, the channel between the limiting blocks 20 increases, allowing the cable 1 to pass smoothly. When the left end of the cable 1 breaks, the right end of the cable 1 will spring back. At this time, the right end of the cable 1 tends to move to the right, and the limiting block 20 moves to the right under the action of the spring 60. Since the inner hole of the guide cylinder 10 is a conical hole 11 with a larger diameter at the left end and a smaller diameter at the right end, when the limiting block 20 slides to the right, the channel between the limiting blocks 20 decreases, which can clamp the cable 1. Figure 8 As shown, this prevents the cable 1 from snapping and rebounding, thus reducing safety risks.

[0043] See Figure 3 , 4 The bottom of the slide 12 is provided with a guide limiting groove 13, the width of which is greater than the width of the slide 12. A guide slider 21 is provided at one end of the limiting block 20 located within the slide 12, and the guide slider 21 is slidably installed within the guide limiting groove 13. With this structure, when there is no cable 1 in the channel, the limiting block 20 will not fall off.

[0044] Furthermore, the side of the limiting block 20 that holds the cable 1 is an arc surface 22 adapted to the cable 1, increasing the contact area with the cable 1.

[0045] Furthermore, the curved surface 22 is provided with patterns or protrusions to increase friction. The patterns can be knurled, and the protrusions can be dots covering the curved surface 22.

[0046] In this embodiment, see Figure 4 , 5 The limiting block 20 has a pulling hole 23 on one side of the large end of the conical hole 11. The pulling hole 23 is connected to the end of the limiting block 20 through a connecting hole 24. Both the pulling hole 23 and the connecting hole 24 have a certain depth, and the width of the pulling hole 23 is greater than the width of the connecting hole 24. The end of the pull rod 30 connected to the limiting block 20 is provided with a limiting part 31, which is placed in the pulling hole 23. Since both the pulling hole 23 and the connecting hole 24 have a certain depth, when the limiting block 20 moves, the limiting part 31 can move up and down through the pulling hole 23 to adjust its position. Through the above structure, the pull rod 30 and the limiting block 20 are movably connected.

[0047] During installation, first insert the limiting part 31 into the pulling hole 23, and then pass the pull rod 30 through the connecting hole 24. After that, insert the limiting block 20 into the slide groove 12. At this time, the pull rod 30 will be limited, and the limiting part 31 will not detach from the pulling hole 23.

[0048] In this embodiment, see Figure 4 , 5 The traction hole 23 is a circular hole, and the limiting part 31 is a spherical structure.

[0049] See Figure 6 The retaining ring 40 has a second clearance hole 41 at its center. Mounting holes 42 are evenly distributed in an annular pattern on the outer side of the retaining ring 40. A pull rod guide hole 43 is evenly distributed in an annular pattern between the second clearance hole 41 and the mounting hole 42. A threaded hole 14 is provided at the end of the guide cylinder 10. The threaded end of the screw passes through the mounting hole 42 and is screwed and fixed to the threaded hole 14. The pull rod 30 slides through the pull rod guide hole 43.

[0050] Example 2:

[0051] Based on Example 1, see Figure 2 The end of the pull rod 30 that passes through the retaining ring 40 is connected and fixed to the pull ring 50.

[0052] Specifically, see Figure 7 The pull ring 50 has a first clearance hole 51 at its center. A pull rod connecting hole 52 is located outside the first clearance hole 51 on the pull ring 50. A screw part 32 is provided at the end of the pull rod 30 extending out of the retaining ring 40. A nut 70 is installed on the screw part 32 after it passes through the pull rod connecting hole 52. A handle 53 is installed on the outside of the pull ring 50. By providing a handle 53 on the pull ring 50, and simultaneously connecting and fixing the pull ring 50 to each pull rod 30, by pulling the handle 53 outwards... (See...) Figure 2 This pulls the ring 50 to the left, and the ring 50 simultaneously drives each lever 30 to pull the limiting block 20. After the limiting block 20 moves to the left, the channel between each limiting block 20 increases, making it easier to remove the cable 1.

[0053] Example 3:

[0054] Based on Example 1 or Example 2, see Figure 1 , 2 The outer wall of the guide cylinder 10 is provided with a connecting platform 15, and a mounting base 80 is installed on the connecting platform 15. The mounting base 80 is used to install and fix the guide cylinder 10.

[0055] Specifically, see Figure 2The mounting base 80 includes a support sleeve 81 and a support shaft 82. The support sleeve 81 is rotatably fitted onto the support shaft 82. A first flange 811 is provided at the upper end of the support sleeve 81, and the first flange 811 is connected and fixed to a threaded hole on the connecting platform 15 by screws. A second flange 821 is provided at the lower end of the support shaft 82. The second flange 821 can be welded to the ship, or a through hole can be provided on the second flange 821, which is then connected and fixed to a bolt welded to the ship. A limiting plate 84 is installed at the upper end of the support shaft 82, and the limiting plate 84 cooperates with the support sleeve 81 to limit its movement. The rotatable fit of the support sleeve 81 onto the support shaft 82, and the cooperation of the limiting plate 84 with the support sleeve 81, allows the support sleeve 81 to rotate on the support shaft 82, thereby enabling the guide cylinder 10 to swing and adjust its angle to adapt to the angle of the cable 1.

[0056] See Figure 2 A self-lubricating bushing 83 is installed between the support sleeve 81 and the support shaft 82 to improve rotational flexibility. A limiting plate 84 is screwed to the upper end of the support shaft 82. A step is provided in the inner hole of the support sleeve 81 at the position corresponding to the limiting plate 84. The diameter of the step is larger than the inner diameter of the support sleeve 81, while the diameter of the limiting plate 84 is larger than the inner diameter of the support sleeve 81, thus axially limiting the support sleeve 81 and the support shaft 82. A gap exists between the lower side of the limiting plate 84 and the step, allowing the support sleeve 81 to rotate on the support shaft 82.

[0057] The working principle or working process of this utility model:

[0058] When using this utility model, please refer to Figure 8 And combined with KR20160000025U Figure 1 The cable limiting device of this utility model can replace the cable guide, or can be installed at the front or rear end of the cable guide.

[0059] When the cable needs to be pulled out, see Figure 2 Pull handle 53 outwards to pull ring 50 to the left. Ring 50 simultaneously drives each lever 30 to pull the limiting block 20. After the limiting block 20 moves to the left, the channel between the limiting blocks 20 increases, making it easier for cable 1 to pass through. After cable 1 is pulled out, handle 53 can be released. At this time, the limiting block 20 moves to the right under the action of spring 60, holding cable 1 in place.

[0060] See Figure 2 , 8When the left end of cable 1 breaks, the right end of cable 1 will spring back. At this time, the right end of cable 1 tends to move to the right, and the limiting block 20 moves to the right under the action of spring 60. Since the inner hole of guide cylinder 10 is a conical hole 11 with a large diameter at the left end and a small diameter at the right end, when the limiting block 20 slides to the right, the channel between each limiting block 20 is reduced, clamping the cable 1, thereby preventing the cable 1 from springing back after breaking, and reducing safety risks.

[0061] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Any modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A cable limiting device, characterized in that: The system includes a guide cylinder (10), the inner hole of which is a conical hole (11). The guide cylinder (10) is provided with at least two sliding grooves (12) axially and evenly distributed along the inner wall of the conical hole (11). Each sliding groove (12) is slidably installed with a limiting block (20). A retaining ring (40) is installed on the side of the guide cylinder (10) at the large end of the conical hole (11). A pull rod (30) is connected to the side of the limiting block (20) at the large end of the conical hole (11). The pull rod (30) moves through the retaining ring (40). A spring (60) is fitted on the pull rod (30). One end of the spring (60) abuts against the limiting block (20), and the other end abuts against the retaining ring (40). There is a channel between each limiting block (20) for passing through the cable (1). When the limiting block (20) moves to the side of the small end of the conical hole (11), the limiting block (20) can clamp the cable (1).

2. The cable limiting device according to claim 1, characterized in that: The bottom of the slide (12) is provided with a guide limiting groove (13), the width of the guide limiting groove (13) is greater than the width of the slide (12), and the end of the limiting block (20) located in the slide (12) is provided with a guide slider (21), and the guide slider (21) is slidably installed in the guide limiting groove (13); the side of the limiting block (20) that holds the cable (1) is an arc surface (22) that is adapted to the cable (1).

3. The cable limiting device according to claim 2, characterized in that: The arc surface (22) is provided with patterns or protrusions to increase friction.

4. The cable limiting device according to claim 1, characterized in that: The limiting block (20) is provided with a traction hole (23) on one side of the large end of the conical hole (11). The traction hole (23) is connected to the end of the limiting block (20) through the connecting hole (24). Both the traction hole (23) and the connecting hole (24) have a certain depth, and the width of the traction hole (23) is greater than the width of the connecting hole (24). The end of the pull rod (30) connected to the limiting block (20) is provided with a limiting part (31), which is placed in the traction hole (23).

5. A cable limiting device according to claim 4, characterized in that: The pulling hole (23) is a circular hole, and the limiting part (31) is a spherical structure.

6. A cable limiting device according to claim 1, 4, or 5, characterized in that: The end of the pull rod (30) that passes through the retaining ring (40) is connected and fixed to the pull ring (50).

7. A cable limiting device according to claim 6, characterized in that: The pull ring (50) has a first clearance hole (51) at its center. A pull rod connecting hole (52) is provided on the pull ring (50) outside the first clearance hole (51). A screw part (32) is provided at one end of the pull rod (30) that extends out of the retaining ring (40). A nut (70) is installed on the screw part (32) after it passes through the pull rod connecting hole (52). A handle (53) is installed on the outside of the pull ring (50).

8. A cable limiting device according to claim 1, characterized in that: The retaining ring (40) has a second clearance hole (41) at its center. Mounting holes (42) are evenly distributed in an annular pattern on the outer side of the retaining ring (40). A pull rod guide hole (43) is evenly distributed in an annular pattern between the second clearance hole (41) and the mounting hole (42). A threaded hole (14) is provided at the end of the guide cylinder (10). The threaded end of the screw passes through the mounting hole (42) and is screwed and fixed to the threaded hole (14). The pull rod (30) slides through the pull rod guide hole (43).

9. A cable limiting device according to claim 1, characterized in that: The outer wall of the guide cylinder (10) is provided with a connecting platform (15), and a mounting seat (80) is installed on the connecting platform (15). The mounting seat (80) is used to install and fix the guide cylinder (10).

10. A cable limiting device according to claim 9, characterized in that: The mounting base (80) includes a support sleeve (81) and a support shaft (82). The support sleeve (81) is rotatably mounted on the support shaft (82). The upper end of the support sleeve (81) is provided with a first flange (811), which is connected to the connecting platform (15). The lower end of the support shaft (82) is provided with a second flange (821). The upper end of the support shaft (82) is equipped with a limiting plate (84), which cooperates with the support sleeve (81) to limit movement.

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