Shielding type traveling cable

Abstract

The utility model relates to the technical field of traveling cables, and particularly discloses a shielding type traveling cable which comprises a protective sheath, a cable unit and steel wires are arranged in the protective sheath, the steel wires are located on the two sides of the interior of the protective sheath, the cable unit is located in the middle of the interior of the protective sheath, and the steel wires are located in the protective sheath. Buffer units which are uniformly distributed at equal intervals are arranged on the surface of the protective sheath; the buffer unit comprises a buffer sleeve body fixed outside the protective sheath, the interior of the buffer sleeve body is a cavity, a reinforcing rib is arranged in the cavity, supporting ribs are arranged on the left side and the right side of the reinforcing rib, and the reinforcing rib faces the center position of the protective sheath. According to the buffer sleeve, the cavity is formed in the buffer sleeve main body, and after the buffer sleeve main body is subjected to elastic deformation due to collision, the buffer sleeve main body can be extruded inwards to be elastically supported under the action of the supporting ribs and the reinforcing ribs, so that a certain counteracting effect on collision force is achieved, and the internal protective sheath is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of trailing cables, in particular to a shielded trailing cable. Background Art

[0002] The elevator trailing cable is composed of a communication cable and a power cable. The communication cable is usually a network data cable, and the internal conductor can be a single or stranded soft copper wire. The outside of the conductor has an insulating layer and a sheath layer. The power cable can select different specifications according to the use of the power supply. The power cable conductor adopts a stranded structure, which has good flexibility. The communication cable and the cable are isolated by a filled insulating material. There are two steel wires in the elevator trailing cable, which exist as load-bearing and tensile components. The network data cable, the power cable, and the load-bearing and tensile components are all in a flat elevator trailing cable, reducing the number of cables in the elevator shaft, facilitating elevator maintenance, and saving installation space.

[0003] The existing sheath outside the elevator trailing cable is generally of an insulating sheath structure and does not have the properties of cold resistance and wear resistance. In cold weather in winter, the cable will become hard, resulting in a decrease in the bending performance of the cable.

[0004] The existing publicly disclosed technical solution, with the publication number of CN220020683U, discloses an elevator trailing cable, including a sheath unit, a video communication cable unit, a steel core stranded unit, and a core unit; a steel core stranded unit is arranged inside the video communication cable unit between adjacent video communication cable units and outside the core unit inside the video communication cable unit; through the structural setting that the sheath unit includes an outer sheath and an inner sheath, the cable body has good cold resistance and wear resistance, and the cable is not easy to become hard in cold weather in winter.

[0005] When the above technical solution is actually implemented, when the elevator trailing cable is in use, the outer wall is prone to collide with the inner wall of the elevator shaft, resulting in damage to the cable structure. Summary of the Invention

[0006] The purpose of the utility model is to provide a shielded trailing cable, which can offset the impact force to a certain extent through a buffer unit and protect the internal protective sheath, so as to solve the problems put forward in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical solution: a shielded trailing cable, including a protective sheath, wherein a cable unit and steel wires are arranged inside the protective sheath, the steel wires are located on both sides inside the protective sheath, the cable unit is located in the middle inside the protective sheath, and buffer units are arranged on the surface of the protective sheath at equal intervals and evenly distributed;

[0008] The buffer unit includes a buffer sleeve body fixed to the outside of the protective sheath. The inside of the buffer sleeve body is a cavity, and reinforcing ribs are arranged in the cavity. Support ribs are arranged on the left and right sides of the reinforcing ribs. The reinforcing ribs face the central position of the protective sheath, and the support ribs and the reinforcing ribs form a triangular structure.

[0009] Preferably, the inner diameter of the buffer sleeve body is in conformity with the outer diameter of the protective sheath, and the protective sheath and the buffer sleeve body are adhesively connected.

[0010] Preferably, the protective sheath includes a wear-resistant layer, a cold-resistant layer and a rubber layer. The cold-resistant layer is arranged inside the wear-resistant layer, and the rubber layer is arranged inside the cold-resistant layer.

[0011] Preferably, the wear-resistant layer is made of nylon material, and the cold-resistant layer is made of PVC material.

[0012] Preferably, the cable unit includes a core body, a protective layer, an insulating layer and a shielding layer. The protective layer is arranged outside the core body, the insulating layer is arranged outside the protective layer, and the shielding layer is arranged outside the insulating layer.

[0013] Preferably, six groups of the cable units are arranged horizontally, and each group of the cable units includes four core bodies.

[0014] Preferably, the protective layer fills the gap between the core body and the insulating layer, and the protective layer is made of fiberglass material.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. Since the inside of the buffer sleeve body is a cavity, after the buffer sleeve body is impacted and undergoes elastic deformation, it can be squeezed inward and elastically supported under the action of the support ribs and the reinforcing ribs, so as to offset a certain impact force and protect the internal protective sheath.

[0017] 2. The protective sheath can protect the cable unit, and the protective layer in the cable unit is made of fiberglass, which increases the tensile performance of the cable unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the overall structural view of the present utility model;

[0020] Figure 2 is a schematic structural view of the cable unit of the present utility model;

[0021] Figure 3 is an enlarged schematic sectional view of the protective sheath of the present utility model;

[0022] Figure 4 is a schematic semi-sectional view of the buffer unit of the present utility model.

[0023] Explanation of reference numerals:

[0024] 1. Protective sheath; 101. Wear-resistant layer; 102. Cold-resistant layer; 103. Rubber layer; 2. Steel wire; 3. Cable unit; 301. Core body; 302. Protective layer; 303. Insulating layer; 304. Shielding layer; 4. Buffer unit; 401. Buffer sleeve body; 402. Reinforcing rib; 403. Support rib. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides a technical solution:

[0027] Please refer to Figure 1 and Figure 4 , a shielded trailing cable, including a protective sheath 1, a cable unit 3 and a steel wire 2 are arranged inside the protective sheath 1, the steel wire 2 is located on both sides inside the protective sheath 1, the cable unit 3 is located in the middle inside the protective sheath 1, and buffer units 4 are arranged on the surface of the protective sheath 1 at equal intervals and evenly distributed;

[0028] The buffer unit 4 includes a buffer sleeve body 401 fixed to the outside of the protective sheath 1, the inside of the buffer sleeve body 401 is a cavity, and a reinforcing rib 402 is arranged in the cavity. Support ribs 403 are arranged on the left and right sides of the reinforcing rib 402. The reinforcing rib 402 faces the center position of the protective sheath 1, and the support ribs 403 and the reinforcing rib 402 form a triangular structure. The inner diameter of the buffer sleeve body 401 is mutually consistent with the outer diameter of the protective sheath 1, and the protective sheath 1 and the buffer sleeve body 401 are adhesively connected.

[0029] By adopting the above technical solution, the buffer unit 4 is fixedly pasted on the outside of the protective sheath 1 and is made of cold-resistant rubber as a whole. A cavity is arranged inside the buffer sleeve body 401. In order to improve the supporting effect of the buffer sleeve body 401, a triangular structure composed of a support rib 403 and a reinforcing rib 402 is arranged inside the buffer sleeve body 401 to increase the supporting effect on the protective sheath 1. If the protective sheath 1 hits the inner wall of the elevator shaft, it first comes into contact with the protruding buffer unit 4. Since the inside of the buffer sleeve body 401 is a cavity, after the buffer sleeve body 401 is hit and undergoes elastic deformation, it can be squeezed inward and elastically supported under the action of the support rib 403 and the reinforcing rib 402, thereby offsetting a certain impact force and protecting the inner protective sheath 1.

[0030] Specifically, as Figure 2 and Figure 3 shown, the protective sheath 1 includes a wear-resistant layer 101, a cold-resistant layer 102 and a rubber layer 103. The wear-resistant layer 101 is provided with the cold-resistant layer 102 inside, and the cold-resistant layer 102 is provided with the rubber layer 103 inside. The wear-resistant layer 101 is made of nylon material, and the cold-resistant layer 102 is made of PVC material;

[0031] The cable unit 3 includes a core body 301, a protective layer 302, an insulating layer 303 and a shielding layer 304. The protective layer 302 is arranged outside the core body 301, the insulating layer 303 is arranged outside the protective layer 302, and the shielding layer 304 is arranged outside the insulating layer 303. Six groups of cable units 3 are arranged horizontally. Each group of cable units 3 includes four core bodies 301. The protective layer 302 is filled into the gap between the core body 301 and the insulating layer 303. The protective layer 302 is made of glass fiber material.

[0032] By adopting the above technical solution, the protective sheath 1 is made of the wear-resistant layer 101, the cold-resistant layer 102 and the rubber layer 103. The three materials are sequentially wrapped outside the cable unit 3 to improve the wear-resistant and cold-resistant effects of the protective sheath 1. The rubber layer 103 also has good elastic effects. The cable unit 3 is composed of the core body 301, the protective layer 302, the insulating layer 303 and the shielding layer 304. The protective layer 302 made of glass fiber material in the middle can protect the core body 301. Glass fiber has a high tensile strength, enhancing the tensile capacity of the cable unit 3.

[0033] Working principle: The protective sheath 1 is made of a wear-resistant layer 101, a cold-resistant layer 102 and a rubber layer 103. The three groups of materials are sequentially wrapped around the outside of the cable unit 3 to improve the wear-resistant and cold-resistant effects of the protective sheath 1. The rubber layer 103 also has good elastic effects. The cable unit 3 is composed of a core body 301, a protective layer 302, an insulating layer 303 and a shielding layer 304. The protective layer 302 made of glass fiber in the middle can protect the core body 301. Glass fiber has a relatively high tensile strength, enhancing the tensile capacity of the cable unit 3. The buffer unit 4 is fixedly adhered to the outside of the protective sheath 1 and is made of cold-resistant rubber as a whole. A cavity is arranged inside the buffer sleeve body 401. In order to improve the support effect of the buffer sleeve body 401, a triangular structure composed of support ribs 403 and reinforcing ribs 402 is arranged inside the buffer sleeve body 401 to increase the support effect on the protective sheath 1. If the protective sheath 1 hits the inner wall of the elevator shaft, it first contacts the protruding buffer unit 4. Since the inside of the buffer sleeve body 401 is a cavity, after the buffer sleeve body 401 is impacted and undergoes elastic deformation, it can be squeezed inward and elastically supported under the action of the support ribs 403 and the reinforcing ribs 402, thereby offsetting a certain impact force and protecting the inner protective sheath 1.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shielded traveling cable, comprising a protective sheath (1), characterized in that: The protective sheath (1) is provided with a cable unit (3) and a steel wire (2), the steel wire (2) is located at two sides of the protective sheath (1), the cable unit (3) is located in the middle of the protective sheath (1), and the surface of the protective sheath (1) is provided with buffer units (4) evenly distributed at equal intervals; The buffer unit (4) comprises a buffer sleeve body (401) fixed to the outside of the protective sleeve (1); the interior of the buffer sleeve body (401) is a cavity, and a reinforcing rib (402) is arranged in the cavity; support ribs (403) are arranged on the left and right sides of the reinforcing rib (402); the reinforcing rib (402) faces the center position of the protective sleeve (1), and the support rib (403) and the reinforcing rib (402) form a triangular structure.

2. A shielded traveling cable according to claim 1, characterized in that: The inner diameter of the buffer sleeve body (401) matches the outer diameter of the protective sleeve (1), and the protective sleeve (1) is bonded to the buffer sleeve body (401).

3. A shielded traveling cable according to claim 1, characterized in that: The protective sheath (1) comprises a wear-resistant layer (101), a cold-resistant layer (102) and a rubber layer (103); the cold-resistant layer (102) is arranged inside the wear-resistant layer (101), and the rubber layer (103) is arranged inside the cold-resistant layer (102).

4. A shielded traveling cable according to claim 3, characterized in that: The wear-resistant layer (101) is made of nylon, and the cold-resistant layer (102) is made of PVC.

5. The shielded traveling cable according to claim 1, characterized in that: The cable unit (3) comprises a wire core body (301), a protective layer (302), an insulating layer (303) and a shielding layer (304); the protective layer (302) is arranged outside the wire core body (301), the insulating layer (303) is arranged outside the protective layer (302), and the shielding layer (304) is arranged outside the insulating layer (303).

6. A shielded traveling cable according to claim 5, characterized in that: The six groups of cable units (3) are arranged in a transverse arrangement, and each group of cable units (3) comprises four groups of wire core bodies (301).

7. The shielded traveling cable according to claim 5, characterized in that: The protective layer (302) fills the gap between the wire core body (301) and the insulating layer (303), and the protective layer (302) is made of glass fiber.

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