Pre-buried cable and assembly

Abstract

The utility model belongs to pre -buried cable technical field, concretely is a kind of pre -buried cable and assembly, including guide core and its outside coating;The outside of the coating is equipped with protective assembly, from inside to outside in proper order is buffer layer, longitudinal coating and tension layer and outer protective sleeve;The buffer layer is elastic support band body, and inside has isolated cavity;The outer layer of longitudinal coating is coated with smooth coating;The inside of the tension layer is equipped with axially extending tow rope, and it is arranged in equidistant in circumference;The outer protective sleeve is rotatably installed on the outside of tension layer, with rotary working condition.The buffer layer is the band body of spiral winding installation, and the inboard of band body is the protruding limit protrusion.By rotatable protective assembly on the outside of cable, and utilize the tow rope built-in protective assembly, the effect that cable structural integrity and path stability can be guaranteed when realizing powerful traction operation, can form buffer protection during laying and use.

Description

Technical Field

[0001] This utility model belongs to the field of embedded cable technology, and in particular relates to an embedded cable and its components. Background Technology

[0002] Pre-buried cables, as the name suggests, refer to cables that are laid in advance and concealed inside or beneath the structure during the construction of buildings, structures, or the ground. They are installed simultaneously with or immediately after wall construction, concrete pouring, floor laying, or other similar processes, and are ultimately covered up, making them invisible from the surface.

[0003] Currently, during the installation of pre-buried cables in conduits, the required traction force is large due to the long installation distance. This causes the internal structure of the cable to deform under strong traction, affecting the overall performance.

[0004] To address the aforementioned issues, this application proposes a pre-embedded cable and its components. Utility Model Content

[0005] The purpose of this utility model is to provide a pre-embedded cable and component, which solves the problems in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a pre-embedded cable and assembly, including a conductor core and its outer covering layer;

[0008] The outer side of the covering layer is provided with a protective component, which consists of a buffer layer, a longitudinal wrapping layer, a tensile layer, and an outer protective sleeve from the inside out.

[0009] The buffer layer is an elastic support band with an internal isolation cavity;

[0010] The outer layer of the longitudinal cladding is coated with a smooth coating.

[0011] The bearing layer is provided with axially extending traction ropes arranged at equal intervals in the circumferential direction.

[0012] The outer protective sleeve is rotatably installed on the outside of the bearing layer and has a rotating working state.

[0013] Preferably, the buffer layer is a spirally wound belt with raised limiting protrusions on the inner side of the belt.

[0014] Preferably, the limiting protrusion has a conical structure, and a V-shaped space is formed between adjacent limiting protrusions.

[0015] Preferably, the inner side of the buffer layer is provided with a spirally wound buffer strip, which is a hollow structure and located between adjacent limiting protrusions.

[0016] Preferably, the buffer strip abuts against the sides of the covering layer and the limiting protrusion, forming an isolation cavity between the covering layer and the buffer layer strip.

[0017] Preferably, the outer side of the bearing layer is provided with convex rings at equal intervals along the axial direction.

[0018] Preferably, the inner side of the outer protective sleeve is provided with an annular groove that is rotatably connected to the convex ring.

[0019] This utility model has the following beneficial effects:

[0020] 1. By using the tension layer installed on the outside of the cable and the protruding traction rope for traction, it can withstand strong traction force without affecting the internal structure of the cable. This facilitates the traction and laying operation and ensures the overall performance of the cable.

[0021] 2. Through the rotating installation of the outer protective sleeve, combined with the buffer layer, it can effectively resist the influence of external forces such as torsion and compression during the traction laying process, ensuring that the cable maintains a stable traction laying path, which helps to ensure the stable progress of cable laying operations.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of the cable of this utility model;

[0025] Figure 2 This is a schematic diagram of the cable planar structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the buffer layer of this utility model;

[0027] Figure 4 This is a schematic diagram of the combined structure of the outer protective sleeve and the bearing layer of this utility model;

[0028] The attached diagram lists the components represented by each number as follows:

[0029] In the picture:

[0030] 11. Guide core; 12. Covering layer; 13. Buffer layer; 131. Limiting protrusion; 132. Buffer strip; 14. Longitudinal wrapping layer; 15. Tension-bearing layer; 151. Traction rope; 152. Protruding ring; 16. Outer protective sleeve; 161. Ring groove. Detailed Implementation

[0031] 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.

[0032] In the description of this utility model, it should be understood that the terms "opening", "top and bottom", "thickness", "top", "middle", "length", "inner" and "around" indicate the orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0033] A pre-embedded cable and assembly are used to assist in the pre-laying of cables in buried conduits. Through the outer tension layer 15 of the cable, the traction rope 151 inside is connected to the traction equipment, which can withstand a large traction force to drive the cable laying. At the same time, the outer protective sleeve 16 generates displacement when it comes into contact with external objects to form a force relief, and works with the buffer layer 13 to deform and buffer, so as to achieve stable laying of the cable under strong traction. This can shorten the operation time and ensure the structural integrity of the cable and the stability of the laying path.

[0034] In some embodiments, the specific structure of the pre-embedded cables and components is as follows: Figure 1 As shown in Figure 4, the cable includes a conductor 11 and an outer sheath 12. The outer side of the sheath 12 is a protective component for auxiliary traction laying.

[0035] The protective components include, from the inside out, a buffer layer 13, a longitudinal wrapping layer 14, a tensile layer 15, and an outer protective sleeve 16;

[0036] The buffer layer 13 is made of thermoplastic elastomer or thermoplastic polyurethane elastomer and is spirally wound and installed on the outside of the covering layer 12 to buffer external forces through elastic deformation.

[0037] The longitudinal wrapping layer 14 is made of polyurethane or non-woven fabric tape, with adjacent tapes overlapping each other. The outer side is coated with a smooth coating, which is a polytetrafluoroethylene coating, to reduce frictional resistance.

[0038] The tension layer 15 is formed by extrusion of high-density polyethylene and has a built-in traction rope 151 that protrudes outward axially and can be connected to the traction machine.

[0039] The outer protective sleeve 16, made of high-density polyethylene, is installed in sections and rotates on the outside of the bearing layer 15. It is used to deflect as the cable moves when in contact with external objects, thus preventing scratches.

[0040] like Figure 3 As shown, the inner layer of the buffer layer 13 consists of multiple cone-shaped limiting protrusions 131, and buffer strips 132 are spirally installed between adjacent limiting protrusions 131.

[0041] The buffer strip 132 abuts against the covering layer 12, so that a layer cavity is formed between the covering layer 12 and the buffer layer 13, providing space for elastic deformation.

[0042] It should be noted that when one side of the cable is compressed, the tension layer 15 contracts inward to compress the buffer layer 13, while the conductor 11 and the covering layer 12 will move closer to the buffer layer 13 due to the compressive force. At this time, the elastic deformation and movement space of the buffer layer 13 can be used to form a buffer and isolation space, thereby protecting the cable and preventing it from being directly affected by external compressive force.

[0043] like Figure 4 As shown, the outer side of the bearing layer 15 has protruding rings 152, which are arranged at equal intervals in the circumferential direction.

[0044] The outer protective sleeve 16 has an annular groove 161 on its inner side, which is rotatably connected to the convex ring 152.

[0045] Understandably, the rotation of the outer protective sleeve 16 can also guide the external compressive force laterally, preventing it from being directly transmitted to the shaft and affecting the internal structure.

[0046] It should be noted that when laying cables, one end of the tension layer 15 is peeled off to expose the traction rope 151, which can then be connected to the traction equipment for cable pulling.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" 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, 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.

[0048] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pre-wired cable and assembly, characterized by: Includes the conductor core (11) and its outer covering layer (12); The outer side of the covering layer (12) is provided with protective components, which are, from the inside to the outside, a buffer layer (13), a longitudinal covering layer (14), a tensile layer (15), and an outer protective sleeve (16). The buffer layer (13) is an elastic support band with an internal isolation cavity; The outer layer of the longitudinal cladding layer (14) is coated with a smooth coating. The bearing layer (15) is provided with axially extending traction ropes (151) arranged at equal intervals in the circumferential direction. The outer protective sleeve (16) is rotatably installed on the outside of the bearing layer (15) and has a rotating working state.

2. The pre-buried cable and assembly of claim 1, wherein: The buffer layer (13) is a spirally wound belt with a raised limiting protrusion (131) on the inner side of the belt.

3. The pre-buried cable and assembly of claim 2, wherein: The limiting protrusion (131) has a conical structure, and a V-shaped space is formed between adjacent limiting protrusions (131).

4. The pre-buried cable and assembly of claim 3, wherein: The inner side of the buffer layer (13) is provided with a spirally wound buffer strip (132), which is a hollow structure and is located between adjacent limiting protrusions (131).

5. The pre-buried cable and assembly of claim 4, wherein: The buffer strip (132) abuts against the side of the covering layer (12) and the limiting protrusion (131) to form an isolation cavity between the covering layer (12) and the buffer layer (13).

6. The pre-wired cable and assembly of claim 1, wherein: The outer side of the bearing layer (15) is provided with convex rings (152) at equal intervals along the axial direction.

7. The pre-buried cable and assembly of claim 6, wherein: The inner side of the outer protective sleeve (16) is provided with an annular groove (161) that is rotatably connected to the convex ring (152).

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