A protective drag chain for sports cables

Abstract

The utility model discloses a kind of protection towed chain of sports type cable, comprising: main body and cover plate;The first side of the middle part of the main body is rotatably connected with the first end of the cover plate;The second side of the middle part of the main body is equipped with limiting piece and hot melting piece, the hot melting piece is spaced apart and arranged at the lower end of the limiting piece;The second end of the cover plate is embedded with the limiting piece and the hot melting piece on the main body, and the hot melting piece can be heated to occur deformation and be fixed in the second side of the cover plate, to be suitable for fixing the cover plate on the main body.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chains, and particularly relates to a protective drag chain for moving cables. Background Art

[0002] A drag chain, also known as a wire and cable protection drag chain, is a device that restrains cables, wires, pneumatic tubes, and hydraulic tubes to facilitate their rotation and movement.

[0003] The cover plates of traditional protective drag chains for moving cables are mostly fixed to the main body structure by snap fasteners or screws; the snap-fastener structure is prone to loosening and detachment in a frequently vibrating or impact environment, resulting in accidental opening of the cover plate and damage to the exposed cables; although screw fixation has a firm connection, its assembly efficiency is low and maintenance is inconvenient. Summary of the Invention

[0004] The utility model aims to at least solve one of the technical problems in the related art. For this purpose, an object of the utility model is to provide a protective drag chain for moving cables, comprising: a main body and a cover plate;

[0005] The first side of the middle part of the main body is rotatably connected to the first end of the cover plate;

[0006] A limiting member and a hot-melting member are provided on the second side of the middle part of the main body, and the hot-melting member is arranged at intervals below the limiting member;

[0007] The second end of the cover plate is fitted with the limiting member and the hot-melting member on the main body, and the hot-melting member can be heated to deform and fixed on the second side of the cover plate, so as to fix the cover plate on the main body.

[0008] Preferably, a fixed shaft is provided at the top of the first side of the middle part of the main body, and the fixed shaft is arranged along the length direction of the main body.

[0009] Preferably, a hinge joint is formed at the first end of the cover plate, and the hinge joint is sleeved on the fixed shaft and hinged to the fixed shaft.

[0010] Preferably, a limiting groove is formed at the second end of the cover plate, and the limiting groove corresponds to the limiting member.

[0011] Preferably, a fixing groove is further formed at the second end of the cover plate, and the fixing groove is arranged at intervals at the bottom of the limiting groove, and the fixing groove corresponds to the hot-melting member.

[0012] Preferably, the fixing groove is arranged in a stepped shape of a "hui" character, and an opening is provided at the end of the second end of the cover plate and is connected to the fixing groove.

[0013] Preferably, the hot melt component is arranged in a stepped shape, with the lower end of the hot melt component located in the opening at the second end of the cover plate, and the higher end of the hot melt component located in the fixing groove.

[0014] Preferably, the bottom of the cover plate is provided with an abutment member, which abuts against the inner side of the main body.

[0015] Preferably, the first end of the main body is provided with two sockets, which are respectively disposed opposite to each other on both sides of the first end of the main body.

[0016] Preferably, the second end of the main body is provided with two fixing holes, which are respectively located opposite each other on both sides of the second end of the main body.

[0017] The above-described solution of this utility model has at least the following beneficial effects:

[0018] The first end of the cover plate is connected to the first side of the middle part of the main body through a rotating connector to realize the opening and closing operation of the cover plate. When the cover plate is closed, its second end is embedded in the limiting member set on the second side of the middle part of the main body to achieve initial positioning. The hot melt part (such as thermoplastic protrusion) set at intervals with the limiting member is inserted into the corresponding structure of the second end of the cover plate. The hot melt part is softened and deformed by heating, filling and solidifying in the mating part of the cover plate to form an irreversible mechanical interlock, which firmly fixes the second end of the cover plate to the main body.

[0019] After the hot melt component is cured, it forms an integrated structure with the cover plate, completely avoiding the loosening or opening of the cover plate caused by vibration, significantly improving the reliability of the cable chain in motion scenarios. Only one heating operation is required to complete the permanent fixation, eliminating the traditional screw fastening or complex buckle alignment steps, greatly improving assembly efficiency, omitting redundant fasteners (such as screws and nuts), simplifying the connection structure between the main body and the cover plate, and reducing the overall weight and manufacturing cost.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a protective drag chain for a motion cable provided in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the main body provided in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the cover plate provided in an embodiment of this utility model;

[0025] Figure 4 This is an open state diagram of a protective drag chain for a motion cable provided in this embodiment of the utility model;

[0026] Figure 5 This is a diagram showing the state of the hot melt component after hot melting in an embodiment of this utility model.

[0027] Explanation of icon numbers:

[0028] 1. Main body; 2. Cover plate;

[0029] 101. Limiting component; 102. Hot melt component; 103. Fixed shaft; 104. Socket; 105. Fixing hole;

[0030] 201. Hinge joint; 202. Limiting groove; 203. Fixing groove; 204. Abutment.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The following describes in detail, with reference to the accompanying drawings, a protective drag chain for a motion cable according to an embodiment of the present invention.

[0038] Please see Figures 1-5 In this embodiment, the system includes: a main body 1 and a cover plate 2; a first side of the middle portion of the main body 1 is rotatably connected to a first end of the cover plate 2; a limiting member 101 and a heat-melting member 102 are provided on a second side of the middle portion of the main body 1, with the heat-melting member 102 spaced apart at the lower end of the limiting member 101; the second end of the cover plate 2 is fitted with the limiting member 101 and the heat-melting member 102 on the main body 1, and the heat-melting member 102 can be heated to deform and fixed on the second side of the cover plate 2, so as to fix the cover plate 2 on the main body 1;

[0039] The first end of the cover plate 2 is connected to the first side of the middle part of the main body 1 through a rotating connector to realize the opening and closing operation of the cover plate 2. When the cover plate 2 is closed, its second end is embedded in the limiting member 101 provided on the second side of the middle part of the main body 1 to achieve initial positioning. The hot melt part 102 (such as thermoplastic protrusion) provided at intervals with the limiting member 101 is inserted into the corresponding structure of the second end of the cover plate 2. The hot melt part 102 is softened and deformed by heating, filling and solidifying in the fitting part of the cover plate 2 to form an irreversible mechanical interlock, which firmly fixes the second end of the cover plate 2 to the main body 1.

[0040] After the hot melt component 102 is cured, it forms an integrated structure with the cover plate 2, completely avoiding the loosening or opening of the cover plate 2 caused by vibration, significantly improving the reliability of the cable chain in motion scenarios. Only one heating operation is required to complete the permanent fixation, eliminating the traditional screw fastening or complex buckle alignment steps, greatly improving assembly efficiency, omitting redundant fasteners (such as screws and nuts), simplifying the connection structure between the main body 1 and the cover plate 2, and reducing the overall weight and manufacturing cost.

[0041] In this embodiment, a fixed shaft 103 is provided at the top of the first side of the middle part of the main body 1, and the fixed shaft 103 is arranged along the length direction of the main body 1; a hinge joint 201 is formed at the first end of the cover plate 2, and the hinge joint 201 is sleeved on the fixed shaft 103 and hinged to the fixed shaft 103; the sleeve structure of the hinge joint 201 and the fixed shaft 103 provides a stable rotation fulcrum, ensuring that the cover plate 2 does not shake or deviate during the opening and closing process, improving the smoothness of operation. The design of the hinge joint 201 directly sleeved on the fixed shaft 103 realizes axial quick assembly without the need for additional connecting parts (such as pins, retaining rings), which significantly reduces the assembly complexity and labor cost. The one-piece molded fixed shaft 103 and hinge joint 201 avoid wear of multiple parts, maintain high reliability under frequent opening and closing conditions, and extend the service life of the cable chain. The simplified design of the rotating end complements the hot-melt fixed end: the hinge end provides flexible opening and closing, and the hot-melt end achieves firm locking, which together optimizes the overall maintainability and stability of the cable chain.

[0042] In this embodiment, a limiting groove 202 is formed at the second end of the cover plate 2, and the limiting groove 202 corresponds to the limiting member 101. The interlocking structure of the limiting groove 202 and the limiting member 101 achieves precise alignment when the cover plate 2 is closed, avoiding lateral displacement of the cover plate 2 and ensuring that the hot melt part 102 can be accurately inserted into the corresponding groove. The limiting member 101 is inserted into the limiting groove 202 to form a mechanical interlock, providing the initial fixing force in the closed state, effectively resisting high-frequency micro-vibrations during equipment operation, and preventing the cover plate 2 from accidentally popping open. The guiding function of the limiting groove 202 simplifies the closing operation of the cover plate 2. Workers can quickly complete the initial positioning without fine adjustment, greatly reducing the assembly difficulty and error rate, and creating a stable foundation for the fixing of the hot melt part 102. The limiting structure bears the initial load, so that the hot melt part 102 only needs to focus on permanent locking. The division of labor and cooperation between the two improves the overall reliability.

[0043] In this embodiment, a fixing groove 203 is further formed at the second end of the cover plate 2. The fixing groove 203 is spaced from the bottom of the limiting groove 202 and corresponds to the hot-melt part 102. The fixing groove 203 provides a dedicated accommodation space for the hot-melt part 102. After heating, the molten material fully fills the groove body, and cooling forms a strong mechanical interlock, significantly enhancing the locking strength of the cover plate 2. The fixing groove 203 and the limiting groove 202 are spaced apart, enabling the hot-melt fixing force and the limiting clamping force to be separately borne, avoiding local deformation caused by stress superposition, and extending the structural life. The strict correspondence between the fixing groove 203 and the hot-melt part 102 constitutes a physical anti-mistake mechanism, ensuring that the hot-melt part 102 can only be inserted into a predetermined position, eliminating assembly deviations. The fixing groove 203 is located at the bottom of the limiting groove 202, forming a double anchoring point: the limiting groove 202 bears the lateral constraint, and the fixing groove 203 bears the longitudinal locking, jointly resisting multi-directional vibration and impact.

[0044] In this embodiment, the fixing groove 203 is arranged in a stepped shape of a "hui" character, and an opening is provided at the end of the second end of the cover plate 2 and is connected to the fixing groove 203. The hot-melt part 102 is arranged in a stepped shape. The lower end of the hot-melt part 102 is arranged in the opening at the second end of the cover plate 2, and the higher end of the hot-melt part 102 is arranged in the fixing groove 203. The stepped groove of the "hui" character and the stepped hot-melt part 102 form a multi-directional bite. The step height difference provides a vertical mechanical stop, and the inner and outer walls of the "hui" character constitute a horizontal surrounding constraint. After the molten material fills the stepped gap, a full-range and dead-angle-free locking is achieved, enhancing the anti-pull-off strength. When heated, the molten material flows into the "hui" character groove body through the opening, completely filling the stepped gap. After cooling, an external anchoring tubercle (biomimetic rivet effect) is formed at the opening, eliminating the risk of axial脱出.

[0045] In this embodiment, a abutting member 204 is provided at the bottom of the cover plate 2. The abutting member 204 abuts against the inner side surface of the main body 1. The abutting member 204 constitutes a rigid support point at the bottom of the cover plate 2, closely abutting against the inner side surface of the main body 1, effectively resisting the middle part collapse deformation of the cover plate 2 caused by the self-weight of the cable or external extrusion, ensuring the stability of the internal cross-sectional shape of the drag chain, and also having the function of limiting or positioning. When the cover plate 2 and the main body 1 are installed, the deformed main body 1 on both sides can be abutted outwards, so that the main body 1 can be used normally.

[0046] In this embodiment, the first end of the main body 1 is provided with two sockets 104, which are respectively disposed opposite to each other on both sides of the first end of the main body 1; the second end of the main body 1 is provided with two fixing holes 105, which are respectively disposed opposite to each other on both sides of the second end of the main body 1; the plug-in design of the sockets 104 and the fixing holes 105 supports blind plugging assembly of multiple cable chains, and single-section connection can be completed without tools, which greatly improves the efficiency of cable chain system construction. The rotational freedom of the sockets 104 in the fixing holes 105 allows adjacent cable chain sections to adapt to bending paths, ensuring smooth movement of the cable in complex three-dimensional trajectories and reducing bending stress. The symmetrically distributed sockets 104 and fixing holes 105 on both sides constitute a dual-axis parallel hinge system, which disperses torsional torque, prevents unilateral overload failure, and maintains the trajectory stability of the cable chain in high-speed reciprocating motion.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A protective cable chain for motion cables, characterized in that, Comprising: A main body and a cover plate; The first side of the middle part of the main body is rotatably connected to the first end of the cover plate; A limiting member and a heat-melting member are provided on the second side of the middle part of the main body, and the heat-melting member is arranged at intervals below the limiting member; The second end of the cover plate is fitted with the limiting member and the heat-melting member on the main body, and the heat-melting member can be heated to deform and be fixed on the second side of the cover plate so as to be suitable for fixing the cover plate on the main body.

2. The protective cable chain for motion cables according to claim 1, characterized in that, A fixed shaft is provided at the top of the first side of the middle part of the main body, and the fixed shaft is arranged along the length direction of the main body.

3. The protective cable chain for motion cables according to claim 2, characterized in that, A hinge joint is formed at the first end of the cover plate, and the hinge joint is sleeved on the fixed shaft and is hinged to the fixed shaft.

4. The protective cable chain for motion cables according to claim 1, characterized in that, A limiting groove is formed at the second end of the cover plate, and the limiting groove corresponds to the limiting member.

5. The protective cable chain for motion cables according to claim 4, characterized in that, A fixing groove is further formed at the second end of the cover plate, and the fixing groove is arranged at intervals at the bottom of the limiting groove, and the fixing groove corresponds to the heat-melting member.

6. The protective cable chain for motion cables according to claim 5, characterized in that, The fixing groove is arranged in a stepped shape of a "return" shape, and an opening is provided at the end of the second end of the cover plate and is communicated with the fixing groove.

7. The protective cable chain for motion cables according to claim 6, characterized in that, The heat-melting member is arranged in a stepped shape, the lower end of the heat-melting member is arranged in the opening at the second end of the cover plate, and the higher end of the heat-melting member is arranged in the fixing groove.

8. The protective cable chain for motion cables according to claim 1, characterized in that, A abutting member is provided at the bottom of the cover plate, and the abutting member abuts against the inner side surface of the main body.

9. The protective cable chain for motion cables according to claim 1, characterized in that, Two socket members are provided at the first end of the main body, and the two socket members are respectively oppositely arranged on both sides of the first end of the main body.

10. A protective cable chain for motion cables according to claim 1, characterized in that, Two fixing holes are provided at the second end of the main body, and the two fixing holes are respectively oppositely arranged on both sides of the second end of the main body.

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