Fastener and cargo securing device
By introducing a first curved surface and a second curved surface design into the fastener, friction at the connection between the wire rope and the fastener is reduced, solving the problem of wire rope wear and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING RUI LI HENG YI LOGISTICS TECH PLC
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-09
AI Technical Summary
During use, the two ends of the wire rope repeatedly rub against the sharp edges of the fastener, which damages the structural integrity of the wire rope and affects its service life.
Design a fastener including a bracket, a ratchet mechanism, a rope threading assembly, and a protective plate. The rope threading assembly has a first curved surface to reduce wear at one end of the wire rope, and the protective plate has a second curved surface to reduce wear at the other end of the wire rope, thereby preventing repeated friction between the wire rope and sharp edges.
By reducing friction at the connection between the wire rope and the fastener, the service life of the wire rope is extended, and the integrity of the wire rope is ensured.
Smart Images
Figure CN224339423U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cargo transportation technology, and in particular to a fastener and cargo securing device. Background Technology
[0002] Ratchet-type wire rope fasteners are important tools for securing railway freight, widely used for binding and securing wheeled goods, steel pipes, and other large cargo. Due to their ease of operation and reliable fixation, these fasteners have become an indispensable part of the railway freight industry. Their working principle involves using a ratchet mechanism to tension and lock the wire rope, thereby ensuring the stability of the cargo during transportation.
[0003] A typical structure of a traditional ratchet-type wire rope fastener includes: a circular hole at one end for the wire rope to pass through, a ratchet shaft in the middle for connecting one end of the wire rope, and a U-shaped plate bent at the other end for winding the other end of the wire rope. In actual use, one end of the wire rope needs to pass through the circular hole and connect to the ratchet shaft, while the other end is wound around the U-shaped plate. When vibrations or bumps occur during cargo transportation, the wire rope will repeatedly rub against the entrance of the circular hole and the sharp edge of the U-shaped plate. Long-term use may damage the structural integrity of the wire rope, thus affecting its service life. Utility Model Content
[0004] The purpose of this utility model is to provide a fastener and cargo securing device that can reduce repeated friction between the two ends of the wire rope and sharp edges, which helps to ensure the integrity of the wire rope and extend its service life.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] In a first aspect, this utility model provides a fastener, including a bracket, a ratchet mechanism, a rope threading assembly, and a protective plate;
[0007] One end of the bracket has an opening, and the other end has a bend for winding one end of a steel wire rope.
[0008] The ratchet mechanism is connected to the bracket, and the ratchet mechanism is used to connect the other end of the wire rope;
[0009] The rope threading assembly is connected to the opening and has a rope threading channel. The surface of the rope threading assembly facing the rope threading channel has a first curved surface for reducing wear at one end of the wire rope.
[0010] The protective plate is connected to the inner wall of the bend, and the protective plate has a second curved surface for reducing wear on the other end of the wire rope.
[0011] In an optional embodiment, the rope threading assembly includes a first plate and a second plate, both connected to the bracket, with the rope threading channel formed between the first plate and the second plate, and the surface of at least one of the first plate and the second plate facing the other having the first curved surface.
[0012] In an optional embodiment, the surface of the first plate facing the second plate has the first curved surface, and the surface of the second plate facing the first plate is a plane.
[0013] In an optional embodiment, along the direction of the wire rope threading in the rope threading channel, the distance between the first curved surface and the second plate gradually decreases and then increases.
[0014] In an optional embodiment, the ratchet mechanism includes a ratchet shaft, a ratchet, a pawl, and an elastic element. The ratchet shaft is rotatably connected to the bracket, the ratchet is fixed to the ratchet shaft, the pawl is rotatably connected to the bracket, and the elastic element is disposed between the pawl and the bracket. The elastic element is configured to engage the pawl with the ratchet to allow the ratchet to rotate unidirectionally relative to the bracket.
[0015] In an optional embodiment, a first limiting component is provided on the outer peripheral surface of the ratchet shaft, the first limiting component being used to divide the ratchet shaft into multiple winding zones.
[0016] In an optional embodiment, the protective plate is an arc-shaped plate, the edge of which is fixedly connected to the bending portion, and the side of the arc-shaped plate facing the opening has a second curved surface.
[0017] In an optional embodiment, the second curved surface is provided with a second limiting component, which is used to divide the second curved surface into multiple winding areas.
[0018] In an optional embodiment, the second limiting component includes a first limiting protrusion and a second limiting protrusion, which are spaced apart along a direction parallel to the axial direction of the ratchet shaft.
[0019] Secondly, this utility model provides a cargo securing device, including a steel wire rope and a fastener as described in any of the foregoing embodiments, wherein one end of the steel wire rope is wound around the bent portion and the other end is connected to the ratchet mechanism.
[0020] The fastener and cargo securing device provided by this utility model can produce the following beneficial effects:
[0021] In the fastener provided by this utility model, the surface of the rope threading assembly facing the rope threading channel has a first curved surface, which can reduce the wear of one end of the wire rope. The inner wall of the bending part is connected to a protective plate, which has a second curved surface for reducing the wear of the other end of the wire rope. This reduces the repeated friction between the two ends of the wire rope and the sharp edge when connected to the fastener, which helps to ensure the integrity of the wire rope and extend its service life.
[0022] The cargo securing device provided in the second aspect of this utility model has the fastener provided in the first aspect of this utility model, and thus has all the beneficial effects of the fastener provided in the first aspect of this utility model. Attached Figure Description
[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 A three-dimensional structural schematic diagram of the fastener provided in the embodiment of this utility model;
[0025] Figure 2 A top view of the fastener provided in an embodiment of this utility model;
[0026] Figure 3 for Figure 2 AA section diagram;
[0027] Figure 4 A top view of the fastener and wire rope provided in this embodiment of the present invention.
[0028] Icons: 1-Bracket; 11-Bending part; 12-Fixed shaft; 2-Ratchet mechanism; 21-Ratchet shaft; 22-Ratchet; 23-Pawl; 24-Elastic element; 3-Rope threading assembly; 31-Rope threading channel; 32-First plate; 321-First curved surface; 33-Second plate; 4-Protective plate; 41-Second curved surface; 411-First limiting protrusion; 412-Second limiting protrusion; 5-Wire rope. Detailed Implementation
[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0033] The first aspect of this utility model is to provide a fastener, such as... Figures 1 to 3 As shown, it includes a bracket 1, a ratchet mechanism 2, a rope threading assembly 3, and a protective plate 4;
[0034] One end of the bracket 1 has an opening, and the other end has a bend 11 for winding one end of the steel wire rope 5.
[0035] Ratchet mechanism 2 is connected to bracket 1, and ratchet mechanism 2 is used to connect the other end of wire rope 5;
[0036] The rope threading assembly 3 is connected to the opening and has a rope threading channel 31. The surface of the rope threading assembly 3 facing the rope threading channel 31 has a first curved surface 321 for reducing wear at one end of the wire rope 5.
[0037] The protective plate 4 is connected to the inner wall of the bend 11, and the protective plate 4 has a second curved surface 41 for reducing wear on the other end of the wire rope 5.
[0038] In the fastener provided by the first aspect of this utility model, such as Figure 3 and Figure 4As shown, since the surface of the rope threading assembly 3 facing the rope threading channel 31 has a first curved surface 321, the first curved surface 321 can reduce the wear of one end of the wire rope 5. The inner wall of the bending part 11 is connected to a protective plate 4, and the protective plate 4 has a second curved surface 41 for reducing the wear of the other end of the wire rope 5. This reduces the repeated friction between the two ends of the wire rope 5 and the sharp edge when connected to the fastener, which helps to ensure the integrity of the wire rope and extend the service life of the wire rope.
[0039] In alternative implementations, such as Figure 3 As shown, the rope threading assembly 3 includes a first plate 32 and a second plate 33, both of which are connected to the bracket 1. The first plate 32 and the second plate 33 are spaced apart and form a rope threading channel 31 between them. At least one of the first plate 32 and the second plate 33 has a first curved surface 321 on its surface facing the other.
[0040] In the above embodiment, the rope threading assembly 3 breaks away from the traditional fastener design of a round hole at the end for the wire rope 5 to pass through. Instead, a rope threading channel 31 is formed between the first plate 32 and the second plate 33. When the wire rope 5 is used with the fastener to tie and fix large goods, one end of the wire rope 5 is connected to the ratchet mechanism 2 and can be laid on the first curved surface 321 before passing around the large goods. Since the first curved surface 321 is curved and has a smooth transition, when vibration or bumps occur during the transportation of goods, the friction between the wire rope 5 and the first curved surface 321 will not cause more serious wear than the wire rope 5 directly rubbing against the sharp edge repeatedly, which is beneficial to extending the service life of the wire rope.
[0041] Specifically, the surface of the first plate 32 facing the second plate 33 may have a first curved surface 321, the surface of the second plate 33 facing the first plate 32 may have a first curved surface 321, or both the surfaces of the first plate 32 and the second plate 33 facing each other may have a first curved surface 321.
[0042] like Figure 3 As shown, the surface of the first plate 32 facing the second plate 33 has a first curved surface 321, and the surface of the second plate 33 facing the first plate 32 is a plane.
[0043] During use, the wire rope 5 does not contact the surface of the second plate 33 facing the first plate 32. Therefore, the use of a flat surface does not affect the life of the wire rope 5 and facilitates the processing of the second plate 33. There is no need to bend the second plate 33; a plate can be directly connected to the bracket 1.
[0044] In an optional embodiment, along the threading direction of the wire rope 5 in the threading channel 31, the distance between the first curved surface 321 and the second plate 33 gradually decreases and then increases.
[0045] like Figure 3 As shown, the direction from left to right is the direction in which the wire rope 5 is threaded in the rope channel 31. In this direction, the distance between the first curved surface 321 and the second plate 33 gradually decreases and then increases, so that when the wire rope 5 overlaps the first curved surface 321, the contact area between the first curved surface 321 and the wire rope 5 is effectively increased, thereby avoiding excessive local stress on the wire rope 5.
[0046] Specifically, the first plate 32 can be bent into an arc-shaped plate or an L-shaped plate, with a smooth transition at the bend of the L-shaped plate.
[0047] In alternative implementations, such as Figure 3 As shown, to facilitate the processing of the protective plate 4, the protective plate 4 is an arc-shaped plate. The edge of the arc-shaped plate is fixedly connected to the bending part 11, and the side of the arc-shaped plate facing the opening has a second curved surface 41.
[0048] The aforementioned protective plate 4 can be formed by bending the plate body. After forming, it is fixed to the bending part 11 by welding or other methods. The protective plate 4 protrudes towards the opening of the support 1. During use, one end of the wire rope 5 is wrapped around the outside of the bending part 11 and the protective plate 4. Since the protective plate 4 is connected to the inner wall of the bending part 11, the second curved surface 41 directly bears the tension of the wire rope 5, avoiding repeated friction between the wire rope 5 and sharp structures, which helps to extend the service life of the wire rope.
[0049] Specifically, the protective plate 4 can be bent into an arc shape.
[0050] In an optional embodiment, the second curved surface 41 is provided with a second limiting component, which is used to divide the second curved surface 41 into multiple winding areas.
[0051] The second limiting component allows the wire rope 5 to be wound in sections on the second curved surface 41, resulting in a more balanced force distribution on the protective plate 4.
[0052] In an optional embodiment, the second limiting component includes a first limiting protrusion 411 and a second limiting protrusion 412, with the first limiting protrusion 411 and the second limiting protrusion 412 spaced apart.
[0053] When winding the wire rope 5, the side of the first limiting protrusion 411 away from the second limiting protrusion 412 forms a winding area, the first limiting protrusion 411 and the second limiting protrusion 412 form a winding area, and the side of the second limiting protrusion 412 away from the first limiting protrusion 411 forms a winding area. The user can evenly wind the wire rope 5 into the three winding areas.
[0054] The first limiting protrusion 411 and the second limiting protrusion 412 can be hemispherical protrusions, cylindrical protrusions, etc.
[0055] The second limiting component can be provided with only one limiting protrusion, or with three, four or even more limiting protrusions. The number of limiting protrusions on the second curved surface 41 can be selected according to actual needs.
[0056] In alternative implementations, such as Figure 1 As shown, the ratchet mechanism 2 includes a ratchet shaft 21, a ratchet 22, a pawl 23, and an elastic element 24. The ratchet shaft 21 is rotatably connected to the bracket 1, the ratchet 22 is fixedly mounted on the ratchet shaft 21, the pawl 23 is rotatably connected to the bracket 1, and the elastic element 24 is disposed between the pawl 23 and the bracket 1. The elastic element 24 is configured to engage the pawl 23 with the ratchet 22 to allow the ratchet 22 to rotate unidirectionally relative to the bracket 1.
[0057] In its natural state, such as Figure 1 As shown, the pawl 23 engages with the ratchet 22 under the action of the elastic element 24, preventing the ratchet 22 from rotating counterclockwise. When the ratchet 22 needs to rotate clockwise, it can overcome the elastic force of the elastic element 24. Therefore, after the user connects the wire rope 5 to the ratchet shaft 21, the user can tighten the wire rope 5 by rotating the ratchet shaft 21 clockwise.
[0058] Among them, the elastic element 24 can be a torsion spring, which is sleeved on the fixed shaft 12 in the bracket 1. One end of the torsion spring is fixedly connected to the bracket 1, and the other end is connected to the pawl 23 to provide elastic force for the pawl 23 to reset.
[0059] In addition, the pawl 23 can be rotatably mounted on the aforementioned fixed shaft.
[0060] Additionally, the ratchet shaft 21 connects the open end of the bracket 1 and the bent portion 11, and the ratchet shaft 21 has an opening, such as... Figure 4 As shown, the wire rope can pass through the opening and extend out of the ratchet shaft 21 along the axial direction of the ratchet shaft 21.
[0061] In an optional embodiment, a first limiting component is provided on the outer peripheral surface of the ratchet shaft 21, which is used to divide the ratchet shaft 21 into multiple winding areas.
[0062] The first limiting component allows the wire rope 5 to be wound in sections on the ratchet shaft 21, making the force on the ratchet shaft 21 more balanced.
[0063] In an optional embodiment, the first limiting component includes a third limiting protrusion and a fourth limiting protrusion, which are spaced apart along the axial direction of the ratchet shaft 21.
[0064] When winding the wire rope 5, a winding area is formed on the side of the third limiting protrusion away from the fourth limiting protrusion, a winding area is formed between the third limiting protrusion and the fourth limiting protrusion, and a winding area is formed on the side of the fourth limiting protrusion away from the third limiting protrusion. The user can evenly wind the wire rope 5 into the three winding areas.
[0065] The third and fourth limiting protrusions can be hemispherical or cylindrical, etc.
[0066] It should be noted that the first limiting protrusion 411 and the second limiting protrusion 412 can also be spaced apart in a direction parallel to the axial direction of the ratchet shaft 21.
[0067] Along the direction perpendicular to the opening of the bracket 1, the first limiting protrusion 411 and the third limiting protrusion are arranged opposite to each other, and the second limiting protrusion 412 and the fourth limiting protrusion are arranged opposite to each other.
[0068] The second aspect of this utility model provides a cargo securing device, which includes a wire rope 5 and the aforementioned fastener. One end of the wire rope 5 is wound around the bending portion 11, and the other end is connected to the ratchet mechanism 2.
[0069] The cargo securing device provided in the second aspect of this utility model includes a steel wire rope 5 and a fastener provided in the first aspect of this utility model, thereby having all the beneficial effects of the fastener provided in the first aspect of this utility model.
[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A fastener, characterized in that, Includes a bracket (1), a ratchet mechanism (2), a rope threading assembly (3), and a protective plate (4); The bracket (1) has an opening at one end and a bend (11) at the other end for winding one end of the wire rope (5). The ratchet mechanism (2) is connected to the bracket (1), and the ratchet mechanism (2) is used to connect the other end of the wire rope (5); The rope threading assembly (3) is connected to the opening and has a rope threading channel (31). The surface of the rope threading assembly (3) facing the rope threading channel (31) has a first curved surface (321) for reducing wear at one end of the wire rope (5). The protective plate (4) is connected to the inner wall of the bend (11), and the protective plate (4) has a second curved surface (41) for reducing wear on the other end of the wire rope (5).
2. The fastener according to claim 1, characterized in that, The rope threading assembly (3) includes a first plate (32) and a second plate (33) both connected to the bracket (1), and the rope threading channel (31) is formed between the first plate (32) and the second plate (33). The surface of at least one of the first plate (32) and the second plate (33) facing the other has the first curved surface (321).
3. The fastener according to claim 2, characterized in that, The surface of the first plate (32) facing the second plate (33) has the first curved surface (321), and the surface of the second plate (33) facing the first plate (32) is a plane.
4. The fastener according to claim 3, characterized in that, Along the wire rope (5) in the rope threading channel (31), the distance between the first curved surface (321) and the second plate (33) gradually decreases and then increases.
5. The fastener according to claim 1, characterized in that, The ratchet mechanism (2) includes a ratchet shaft (21), a ratchet (22), a pawl (23), and an elastic element (24). The ratchet shaft (21) is rotatably connected to the bracket (1). The ratchet (22) is fixedly mounted on the ratchet shaft (21). The pawl (23) is rotatably connected to the bracket (1). The elastic element (24) is disposed between the pawl (23) and the bracket (1). The elastic element (24) is configured to engage the pawl (23) with the ratchet (22) to allow the ratchet (22) to rotate unidirectionally relative to the bracket (1).
6. The fastener according to claim 5, characterized in that, The outer peripheral surface of the ratchet shaft (21) is provided with a first limiting component, which is used to divide the ratchet shaft (21) into multiple winding areas.
7. The fastener according to claim 1, characterized in that, The protective plate (4) is an arc-shaped plate, the edge of which is fixedly connected to the bending part (11), and the side of the arc-shaped plate facing the opening has a second curved surface (41).
8. The fastener according to claim 5, characterized in that, The second curved surface (41) is provided with a second limiting component, which is used to divide the second curved surface (41) into multiple winding areas.
9. The fastener according to claim 8, characterized in that, The second limiting component includes a first limiting protrusion (411) and a second limiting protrusion (412), which are spaced apart in a direction parallel to the axial direction of the ratchet shaft (21).
10. A cargo securing device, characterized in that, Includes a wire rope (5) and a fastener as described in any one of claims 1-9, wherein one end of the wire rope (5) is wound around the bend (11) and the other end is connected to the ratchet mechanism (2).