Basalt fiber inhaul cable and connecting structure

Abstract

The utility model discloses a basalt fiber inhaul cable which comprises a cable body, the cable body comprises a fiber bundle and a protective layer tightly wrapping the periphery of the fiber bundle, the fiber bundle is of a rope structure formed by twisting, and the protective layer is formed on the periphery of the fiber bundle in a plastic spraying mode through a fuse machine. According to the basalt fiber inhaul cable, the fiber bundles made of basalt materials are used in the cable body and wrapped with the protection layer so that the service life of the basalt fiber inhaul cable can be prolonged, the protection layer is made of polyethylene materials so that ultraviolet aging can be resisted, and the service life of the basalt fiber inhaul cable can be prolonged. And meanwhile, the protective layer is subjected to plastic spraying molding through a fuse machine, so that the facility thickness of the protective layer in each direction of the circumference of the fiber bundle is uniform. The utility model further discloses a connecting structure comprising the basalt fiber inhaul cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cable equipment, in particular to a basalt fiber cable. Background Art

[0002] Cables are components used for towing and system support. They are widely used in construction, agriculture, navigation, bridges and other fields. Currently, cables are mostly made of tough and durable materials with sufficient tensile strength, such as steel wire, nylon or carbon fiber. However, in the application of the above materials, steel wire cables are relatively bulky, easy to conduct electricity, and have low tensile strength; carbon fiber is expensive and easy to conduct electricity; nylon has high water absorption, which will affect dimensional stability and electrical properties, and will spontaneously combust at 449℃~499℃.

[0003] With the continuous development of the field of cable material technology, basalt materials are gradually used in cable equipment due to their advantages such as high strength, low relaxation, strong insulation and good resistance to acid and alkali corrosion. However, the application structure and form of basalt fibers in cable equipment are not mature enough, and the physical and chemical properties of basalt fibers are difficult to transfer to the cable structure.

[0004] Therefore, how to provide a basalt fiber cable with high tensile strength and stable structure is a problem that technical personnel in this field need to solve urgently. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a basalt fiber cable with high tensile strength and stable structure.

[0006] Another object of the present invention is to provide a connection structure including the basalt fiber cable.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A basalt fiber cable comprises a cable body, wherein the cable body comprises a fiber bundle and a protective layer tightly wrapped around the outer periphery of the fiber bundle;

[0009] The fiber bundle is a twisted rope structure, and the protective layer is spray-molded on the outer periphery of the fiber bundle by a hot melt machine.

[0010] Preferably, in the above basalt fiber cable, the fiber bundle is formed by twisting a plurality of fiber filaments, or,

[0011] The fiber bundle is formed by twisting or gathering a plurality of fiber strands, and each of the fiber strands is formed by twisting a plurality of fiber filaments.

[0012] Preferably, in the above basalt fiber cable, the fiber filaments are made by spinning molten basalt ore through a spinneret.

[0013] A connection structure, comprising an anchor cup, an end and the basalt fiber cable as described in any one of the above embodiments, wherein the two ends of the fiber bundle are respectively inserted into one of the anchor cups and locked by the anchor cups;

[0014] The two anchor cups are respectively equipped with end heads on opposite sides thereof, and the end heads are used to be connected to the anchor points. An adjustment portion is provided between the anchor cup on one side and the end heads, and the adjustment portion can be adjusted in length in its axial direction to change the distance between the end heads and the anchor cups on the corresponding side.

[0015] Preferably, in the above connection structure, the adjustment part comprises an adjustment sleeve and an adjustment screw, the first end of the adjustment screw extends into the adjustment sleeve and cooperates with the inner wall thread of the adjustment sleeve, and the second end of the adjustment screw extends into the anchor cup and is fixedly connected to the anchor cup;

[0016] The end head is threadedly connected in the open end of the adjusting sleeve.

[0017] Preferably, in the above connection structure, two adjusting parts are provided on a single side of the cable, and the two adjusting parts are connected end to end.

[0018] Preferably, in the above connection structure, the anchor cup comprises a through portion with a truncated cone configuration and a connecting portion with a cylindrical configuration, and the fiber bundle penetrates into the anchor cup from the smaller circular surface of the through portion and is locked and connected in the connecting portion.

[0019] Preferably, in the above connection structure, the anchor cup is filled with a resin anchoring glue, and the end of the fiber bundle penetrates the anchor cup and is solidified and connected with the resin anchoring glue to form an integrated structure, or,

[0020] A rope clamp is fixedly arranged on the inner wall of the connection part, and the end of the fiber bundle penetrates into the connection part and is fixed and locked by the rope clamp.

[0021] Preferably, in the above connection structure, the end region of the fiber bundle penetrating into the anchor cup is a structure diverging away from the axial direction.

[0022] Preferably, in the above connection structure, the end is in a fork ear shape or a hook shape.

[0023] It can be seen from the above technical scheme that the basalt fiber cable provided by the utility model includes a cable body, and the cable body includes a fiber bundle of basalt material, the fiber bundle is arranged inside the cable body to improve the overall tensile strength of the cable body, and a protective layer is tightly wrapped on the periphery of the fiber bundle. The setting of the protective layer can maintain the stable external structure of the fiber bundle on the one hand, and is used to protect the fiber bundle from wear and aging on the other hand; specifically, the fiber bundle is a twisted rope structure, and the twisting molding can keep the fiber bundle in a good integrated structure and improve its tensile strength, and the protective layer is preferably made of high-density polyethylene material to resist ultraviolet aging, slow down the aging of the internal fiber bundle, and prevent the fiber bundle from wear and abrasion. At the same time, the protective layer of polyethylene material is spray-molded on the periphery of the fiber bundle by a hot melt machine, so that the thickness of the protective layer in all directions is more uniform. The basalt fiber cable provided by the utility model has a fiber bundle of basalt material arranged inside the cable body to improve the tensile strength of the cable body, and at the same time, a protective layer is coated on the periphery of the fiber bundle to improve the service life of the fiber bundle. Specifically, the fiber bundle is arranged as a twisted rope structure to maintain its own connection effect and overall tensile strength. At the same time, the protective layer is made of polyethylene and is formed on the periphery of the fiber bundle by injection molding, so that the thickness of the protective layer in all directions is more uniform, thereby improving the appearance consistency and service life of the basalt fiber cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the basalt fiber cable structure provided by an embodiment of the utility model;

[0026] Figure 2 for Figure 1 Exploded diagram of

[0027] Figure 3 Schematic diagram of the connection of the fiber bundle in the anchor cup;

[0028] Figure 4 for Figure 1 A front view of

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of a fiber bundle in one embodiment of the utility model;

[0030] Figure 6 This is a schematic diagram of the cross-sectional structure of a fiber bundle in another embodiment of the utility model;

[0031] Among them, 10-cable body; 110-fiber bundle; 1110-fiber filament; 1120-fiber strand; 120-protective layer; 20-anchor cup; 210-passing part; 220-connecting part; 30-end; 410-adjusting sleeve; 420-adjusting screw; 50-resin anchoring glue. DETAILED DESCRIPTION

[0032] The core of the utility model is to disclose a basalt fiber cable with high tensile strength, stable structure and easy length adjustment.

[0033] Another object of the utility model is to disclose a connection structure including the basalt fiber cable.

[0034] In order to make the technical personnel in this field better understand the present invention, the embodiments of the present invention are described below with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary for the solutions of the utility model described in the claims.

[0035] like Figure 1 As shown in FIG. , the basalt fiber cable provided by the embodiment of the utility model includes a cable body 10, wherein the cable body 10 specifically includes a fiber bundle 110, and a protective layer 120 designed to wrap the fiber bundle 110 to protect the fiber bundle 110. It should be noted that the fiber bundle 110 is preferably made of basalt material to have sufficient tensile strength, so that the fiber bundle 110 as the base material of the cable body 10 can significantly improve the tensile strength of the cable body 10. At the same time, the fiber bundle 110 is designed as a twisted rope structure, and the twisted structure can keep the fiber bundle 110 in a good integrated structure. And further improve its tensile strength; the protective layer 120 is used to protect the fiber bundle 110, and it is preferably made of high-density polyethylene material to be able to resist UV aging, slow down the aging of the internal fiber bundle 110, and prevent the fiber bundle 110 from wear and abrasion. At the same time, in order to improve the uniformity of the overall structure of the protective layer 120, the protective layer 120 of polyethylene material is spray-molded on the periphery of the fiber bundle 110 by a hot melt machine, so that the thickness of the protective layer 120 in all directions is more uniform, thereby improving the appearance consistency and service life of the basalt fiber cable.

[0036] As for the specific structure of the fiber bundle 110 for improving the strength of the cable body 10 provided in the embodiment of the utility model, it is made of a plurality of fiber filaments 1110 made of basalt material. The fiber filaments 1110 are prepared specifically by melting natural basalt ore to form a melt, spinning the melt into basalt fiber precursor through a spinning machine, and then spraying the precursor into a single basalt fiber filament 1110 through a spinneret, and then twisting the fiber filaments 1110 into strands to form a fiber bundle 110.

[0037] Specifically, Figure 5 As shown, the fiber bundle 110 can be directly twisted into a shape by a plurality of fiber filaments 1110, and is coated and wrapped by a protective layer 120 to form a stable structure of the cable body 10, and at the same time, as shown in FIG. Figure 6 As shown, the fiber bundle 110 can also be formed by twisting or directly gathering a plurality of fiber strands 1120 into bundles, and the fiber strand 1120 is formed by twisting a plurality of fiber filaments 1110. Different forming methods are selected according to the tensioning force requirements under the application conditions of the cable, and the number of twisted strands of the fiber bundle 110 in the cable body 10 is not unique. The twisting principle can refer to the twisting form of steel wire ropes and steel strands. It should be noted that the fiber bundle 110 is formed by directly gathering a plurality of fiber strands 1120 into bundles, that is, after being independently twisted, a plurality of fiber strands 1120 are arranged in parallel or crosswise manner to bear tension at the same time after being tightened. Its tensile strength is weaker than that of the twisted fiber bundle 110, but the process is simple and the production cost is low.

[0038] In addition, see Figure 1 , Figure 2 and Figure 4 The embodiment of the utility model further provides a connection structure, which includes an anchor cup 20, an end 30 and a basalt fiber cable provided by any of the above embodiments, and specifically, both sides of the fiber bundle 110 are respectively inserted into an anchor cup 20, and are locked in the anchor cup 20 to maintain the tension state of the fiber bundle 110; and the opposite sides of the two anchor cups 20, that is, the distal ends of the two anchor cups 20, are respectively equipped with end heads 30, and the end heads 30 are used to connect with the anchor point. It should be noted here that the anchor point is the position where the end heads 30 on both sides need to be fixedly set when the cable is used, which is required according to the actual working conditions. The position is determined, and the end head 30 is connected to the anchor point so that the cable provided in the embodiment of the utility model can perform actions such as traction and dragging. At the same time, an adjustment part is provided between the anchor cup 20 and the end head 30 on one side, and the anchor cup 20 at the other end is directly connected to the end head 30. The adjustment part can adjust the length in its axial direction to change the distance between the end head 30 and the anchor cup 20 on the corresponding side, thereby allowing the cable to be adjusted in the length direction. At the same time, since the anchor cup 20 at the other end is directly connected to the end head 30, it does not need to be adjusted in length during the assembly process, and maintains good structural strength and connection effect.

[0039] The connection structure provided by the embodiment of the utility model is provided with a fiber bundle 110 made of basalt material inside the cable body 10 to improve the tensile strength of the cable body 10, and at the same time, a protective layer 120 is coated on the periphery of the fiber bundle 110 to improve the service life of the fiber bundle 110, and the two ends of the fiber bundle 110 are fixed and locked by the anchor cup 20 to keep the fiber bundle 110 in a taut state, so that the structure of the cable body 10 can be strengthened, and a good connection between the cable body 10 and the end head 30 structure is achieved through the anchor cup 20. At the same time, the cable is only provided with an adjustment part between the anchor cup 20 and the end head 30 on one side. On the one hand, the anchor cup 20 and the end head 30 at the end where the adjustment part is not provided maintain a complete structure, thereby improving the stability of the overall structure of the cable. On the other hand, compared with the cable with adjustment structures provided at both ends in the prior art, the adjustment part provided at a single end can reduce the production cost. At the same time, the end is designed to be connected to the movable end, and after the other end is fixed, the length of the cable is adjusted at the single end, which is convenient for the adjustment operation during the construction process.

[0040] In some embodiments of the present invention, the adjustment part in the connection structure adopts the sleeve adjustment structure commonly used in the cable structure, and the adjustment part specifically includes an adjustment sleeve 410 and an adjustment screw 420, wherein the first end of the adjustment screw 420 extends into the internal setting of the adjustment sleeve 410, and the inner wall of the adjustment sleeve 410 is provided with a thread to cooperate with the adjustment screw 420 thread, and the second end of the adjustment screw 420 extends into the anchor cup 20 and is fixedly connected with the anchor cup 20. The threaded adjustment sleeve 410 and the adjustment screw 420 can change the length of the cable by rotation, and at the same time, the position of the adjustment sleeve 410 can be fixed by the limiting effect of the thread when it is rotated into place. For the convenience of assembly and parts processing, it is preferred that the second end of the adjustment screw 420 and the anchor cup 20 are also assembled by threaded connection to maintain the stability of the connection structure and facilitate disassembly and assembly.

[0041] On the basis of the above embodiment, one end of the adjusting sleeve 410 is threadedly connected to the adjusting screw 420 and is closed by the adjusting screw 420, and the open end of the adjusting sleeve 410 is fixedly connected to the end head 30, so as to adjust the distance between the end heads 30 on both sides of the cable as the relative positions of the adjusting sleeve 410 and the adjusting screw 420 in the axial direction change, and preferably, the end head 30 extends out of a connecting rod with an external thread and is connected to the internal thread of the open end of the adjusting sleeve 410. In the above embodiment, for the processing of the adjusting screw 420 and the adjusting sleeve 410, it is only necessary to process the threads throughout the axial direction to achieve a stable connection with the anchor cup 20 and the end head 30, thereby reducing the processing complexity of the parts.

[0042] In order to further optimize the above technical solution, Figure 1 and Figure 2As shown, in the connection structure provided by the embodiment of the utility model, two adjusting parts are arranged on a single side of the cable, and the two adjusting parts are assembled in an end-to-end connection manner on a single side of the cable. Specifically, the purpose of arranging two adjusting parts on a single side is to make the cable provided by the embodiment of the utility model have the same length adjustment margin as the double-end single-sleeve adjustment structure in the prior art, and meet the adjustment requirements under various working conditions. The two adjusting parts arranged on a single side can be used as active ends for the operator to perform construction adjustments, and the other end is first connected to the anchor point as a fixed end, and the cable length is adjusted on the side where the adjusting parts are arranged. Compared with the prior art, when the adjustment length of a single adjustment part cannot meet the working condition requirements, it is only necessary to perform the adjustment operation of the other adjustment part at a single end, without the need for the operator to move to the other end for adjustment, thereby improving the convenience of on-site construction; at the same time, the cable is not provided with one end of the adjustment part, and the anchor cup 20 is directly connected to the end head 30 without the need for other transmission structures. On the one hand, the connection structure of the end head 30 is more integrated and more stable, and on the other hand, the tension applied to the end head 30 can be directly transmitted to the fiber bundle 110 through the anchor cup 20, and the fiber bundle 110 bears the tension applied to the cable.

[0043] It should be noted that if Figure 2 As shown, the two adjustment parts are connected end to end, which means that the two adjustment parts are arranged on the cable in the same posture and direction. Specifically, the two ends of the adjustment screw 420 of one of the adjustment parts are respectively connected to the anchor cup 20 and the adjustment sleeve 410, and the rear end of the adjustment sleeve 410 is open, while the two ends of the adjustment sleeve 410 of the other adjustment part are respectively connected to its own adjustment screw 420 and the end 30, and the head end of the adjustment screw 420 is exposed, and the rear end of the corresponding adjustment sleeve 410 in the empty state is threadedly connected with the head end of the adjustment screw 420, so as to achieve the purpose of connecting the two adjustment parts to the same end of the cable in the form of end to end connection; at the same time, the two adjustment parts are set to avoid the problem that the sleeve has a too long structure and is difficult to process due to the length margin adjustment of the cable being undertaken by only a single adjustment part.

[0044] In some embodiments of the present invention, Figure 3As shown, in order to improve the connection effect between the anchor cup 20 and the cable body 10, the structure of the anchor cup 20 includes a through portion 210 of a truncated cone configuration and a connecting portion 220 of a cylindrical configuration, and the radius of the connecting portion 220 is equal to the radius of the larger circular surface of the through portion 210, the larger circular surface of the through portion 210 is connected and connected to the connecting portion 220, and the fiber bundle 110 penetrates from the smaller circular surface position of the through portion 210 and reaches the connecting portion 220, and the fiber bundle 110 is locked in the connecting portion 220 and connected to the anchor cup 20. The anchor cup 20 is an integrated structure, and the through portion 210 of the cone-shaped configuration on the anchor cup 20 allows the fiber bundle 110 to extend into it through a smaller circular surface, so that the end face of the cone can be more easily sealed after the fiber bundle 110 is inserted into it. At the same time, the small circular surface on the cone can be used as a limiting structure to lock the fiber bundle 110. For example, a disc with a size larger than the small circular surface of the through portion 210 is fixedly set at the end portion of the side where the fiber bundle 110 extends into the anchor cup 20, the fixed connection between the fiber bundle 110 and the anchor cup 20 can be achieved through the limiting and blocking effect of the small circular surface.

[0045] Specifically, the locking effect of the fiber bundle 110 and the anchor cup 20 is one of the important factors affecting the service life of the cable. The above embodiment provides a method for locking the fiber bundle 110 by a disc having a size larger than the small circular surface of the through portion 210. In some embodiments of the present invention, the fiber bundle 110 can also be fixed in other ways to achieve effective fixation with the anchor cup 20, such as by a resin anchoring glue 50, that is, the end of the fiber plastic is inserted into the anchor cup 20, and is cured and connected with the resin anchoring glue 50 in the anchor cup 20 to form an integrated structure. At this time, due to the resin anchoring glue 50 0 is filled to the position of the connecting portion 220, and the radius of the resin anchoring glue 50 in the connecting portion 220 passes through the small circular surface of the portion 210, and when the fiber bundle 110 is tightened, the fiber bundle 110 cannot be separated from the anchor cup 20 through the blocking effect of the small circular surface. The resin anchoring glue 50 is specifically set as follows: after the end of the fiber bundle 110 extends into the anchor cup 20, liquid resin anchoring glue 50 is evenly poured into the anchor cup 20 until the resin anchoring glue 50 covers the end of the fiber bundle 110, and the resin anchoring glue 50 is left to stand and wait for the resin anchoring glue 50 to solidify to complete the locking connection between the fiber bundle 110 and the anchor cup 20.

[0046] In other embodiments of the present invention, the fiber bundle 110 is fixedly connected by rope clips commonly used in rigging structures. Several rope clips are arranged on the inner wall of the connecting part 220. The ends of the fiber bundle 110 are inserted into the connecting part 220 and fixedly locked by the rope clips. It should be noted that the locking structure for locking the ends of rigging such as wire ropes can be adapted to be used in the anchor cup 20 of the present invention to lock the ends of the fiber bundle 110, which will not be elaborated herein.

[0047] In addition, it should be noted that in a preferred embodiment of the present invention, the fiber bundle 110 is a twisted structure, and the end of the fiber bundle 110 extending into the anchor cup 20 is locked by the anchor cup 20 through the resin anchoring glue 50. At the same time, the end of the fiber bundle 110 inserted into the anchor cup 20 is a divergent structure rather than a gathered structure, that is, the end of the fiber bundle 110 inserted into the anchor cup 20 is not twisted, so that the ends of each fiber strand 1120 or fiber filament 1110 diverge, so that the resin anchoring glue 50 can fill the interior of any adjacent fiber strand 1120 or fiber filament 1110 as much as possible, and the circumference of each fiber strand 1120 or fiber filament 1110 is filled with the resin anchoring glue 50, thereby improving the locking effect of the fiber bundle 110 in the anchor cup 20.

[0048] Furthermore, the end 30 in the cable can be set to a fork ear shape or a hook shape according to actual working conditions so as to be easily connected to the anchor point. The end 30 only needs to be provided with an extended connecting rod to achieve a stable connection with the anchor cup 20.

[0049] The terms "first", "second", "left side" and "right side" in the specification and claims of the utility model and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A basalt fiber cable, characterized in that: The cable body comprises a fiber bundle and a protective layer tightly wrapped around the outer periphery of the fiber bundle; The fiber bundle is a twisted rope structure, and the protective layer is spray-molded on the outer periphery of the fiber bundle by a hot melt machine.

2. The basalt fiber cable according to claim 1, characterized in that: The fiber bundle is formed by twisting a plurality of fiber filaments, or, The fiber bundle is formed by twisting or gathering a plurality of fiber strands, and each of the fiber strands is formed by twisting a plurality of fiber filaments.

3. The basalt fiber cable according to claim 2, characterized in that: The fiber filaments are made by spinning molten basalt ore through a spinneret in a spinning machine.

4. A connection structure, characterized in that: It comprises an anchor cup, an end and the basalt fiber cable according to any one of claims 1 to 3, wherein the two ends of the fiber bundle are respectively inserted into one of the anchor cups and locked by the anchor cups; The two anchor cups are respectively equipped with end heads on opposite sides thereof, and the end heads are used to be connected to the anchor points. An adjustment portion is provided between the anchor cup on one side and the end heads, and the adjustment portion can be adjusted in length in its axial direction to change the distance between the end heads and the anchor cups on the corresponding side.

5. The connection structure according to claim 4, characterized in that: The adjusting part comprises an adjusting sleeve and an adjusting screw, wherein the first end of the adjusting screw extends into the adjusting sleeve and is threadedly matched with the inner wall of the adjusting sleeve, and the second end of the adjusting screw extends into the anchor cup and is fixedly connected to the anchor cup; The end head is threadedly connected in the open end of the adjusting sleeve.

6. The connection structure according to claim 5, characterized in that: Two adjusting parts are arranged on one side of the cable, and the two adjusting parts are connected end to end.

7. The connection structure according to claim 4, characterized in that: The anchor cup comprises a through portion with a truncated cone configuration and a connecting portion with a cylindrical configuration. The fiber bundle penetrates into the anchor cup from a smaller circular surface of the through portion and is locked and connected in the connecting portion.

8. The connection structure according to claim 7, characterized in that: The anchor cup is filled with a resin anchoring glue, and the end of the fiber bundle penetrates the anchor cup and is solidified and connected with the resin anchoring glue to form an integrated structure, or, A rope clamp is fixedly arranged on the inner wall of the connection part, and the end of the fiber bundle penetrates into the connection part and is fixed and locked by the rope clamp.

9. The connection structure according to claim 4, characterized in that: The end region of the fiber bundle penetrating into the anchor cup is a structure that diverges away from the axial direction.

10. The connection structure according to claim 4, characterized in that: The end is in a fork ear shape or a hook shape.

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