Compression-resistant cable

Abstract

The utility model relates to a compression-resistant cable, and relates to the field of cables, the compression-resistant cable comprises a plurality of conductors, a protection layer and a sheath layer, the protection layer wraps the plurality of conductors, the protection layer is provided with a plurality of buffer parts, and the sheath layer wraps the conductors and the plurality of buffer parts. By adding the buffer component between the protection layer and the sheath layer, when the cable is impacted, the buffer component buffers the external pressure, so that the wires in the protection layer are not easy to break, and the pressure resistance of the cable is improved.

Description

Technical fields:

[0001] This utility model belongs to the technical field of cables, and specifically refers to a pressure-resistant cable. Background technology:

[0002] Cables typically consist of a conductor, an insulation layer, and sometimes an outer sheath that provides a tight inner layer to prevent moisture intrusion or enhances mechanical strength. After installation, if a large heavy object is placed above the cable or the cable is subjected to an impact, the conductor is prone to breakage due to increased local stress, thus the cable's compressive strength needs improvement. Summary of the Invention:

[0003] The purpose of this invention is to provide a pressure-resistant cable to solve the technical problems mentioned in the background section.

[0004] This utility model is implemented as follows:

[0005] A pressure-resistant cable includes a plurality of conductors, a protective layer, and a sheath layer. The protective layer covers the plurality of conductors, and a plurality of buffer components are provided on the protective layer. The sheath layer covers the conductors and the plurality of buffer components.

[0006] Preferably, the sheath layer has a circular cross-section, the protective layer has a rectangular cross-section, the two opposite ends of the protective layer abut against the inner wall of the sheath layer, and the other two opposite ends of the protective layer abut against the buffer component.

[0007] Preferably, the protective layer has an arc-shaped surface formed thereon, and the arc-shaped surface fits into the inner wall of the sheath layer.

[0008] Preferably, a smooth layer one is provided on the inner wall of the sheath layer, and a smooth layer two is provided on the arc-shaped surface, with the smooth layer two adhering to the smooth layer one.

[0009] Preferably, the protective layer comprises, from the inside out, an insulating layer, a shielding layer, a waterproof layer, and a supporting frame layer.

[0010] Preferably, the support frame layer is formed by curing an organic curing adhesive.

[0011] Preferably, the support frame layer includes a support part one, a support part two, and a plurality of reinforcing parts. The reinforcing parts are disposed on the support part one and the support part two. The distribution direction of the plurality of reinforcing parts is parallel to the length direction of the conductor. Adjacent reinforcing parts and their respective support parts one or support parts two are spliced ​​together to form a triangle.

[0012] Preferably, the buffer portion is hollow, the buffer component is filled with silicone oil, and the buffer portion can recover its shape under elastic action after being compressed.

[0013] The outstanding advantages of this utility model compared to the prior art are:

[0014] 1. This utility model adds a buffer component between the protective layer and the sheath layer. When the cable is impacted, the buffer component buffers the external pressure, making the conductor inside the protective layer less likely to break, which helps to improve the cable's compressive strength.

[0015] 2. The present invention sets the cross-section of the protective layer to a rectangle, which is beneficial to increasing the maximum distance between the protective layer and the sheath layer, and is also beneficial to adding a larger buffer component between the protective layer and the sheath layer;

[0016] 3. This utility model injects silicone oil into the buffer component. When the pressure is too high, the silicone oil in the buffer component flows out. If the protective layer is damaged, the silicone oil flows into the protective layer from the damaged part to protect the conductor, which helps to reduce the occurrence of leakage. Attached image description:

[0017] Figure 1 This is a cross-sectional view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the protective layer of this utility model, mainly showing the structure of the supporting frame layer;

[0019] Figure 3 This is a partial structural diagram of this embodiment, mainly showing the structure of the support frame layer.

[0020] Reference numerals in the accompanying drawings: 1. Conductor; 2. Protective layer; 22. Curved surface; 221. Smooth layer two; 23. Insulating layer; 24. Shielding layer; 25. Waterproof layer; 26. Support frame layer; 261. Support part one; 262. Support part two; 263. Reinforcing part; 3. Sheath layer; 31. Smooth layer one; 4. Buffer component; 41. Cavity. Detailed implementation method:

[0021] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —3:

[0022] This application discloses a pressure-resistant cable, and see [link to relevant documentation]. Figure 1 and Figure 2The cable includes several conductors 1, a protective layer 2, and a sheath layer 3. The conductors 1 are all located within the protective layer 2 and are fixedly connected to the cable. The protective layer 2 has a rectangular cross-section, and curved surfaces 22 are formed at opposite ends of the protective layer 2. The sheath layer 3 has a circular cross-section, and the protective layer 2 is located within the sheath layer 3. The protective layer 2 and the sheath layer 3 are rotatably connected. The curvature of the curved surface 22 matches the curvature of the protective layer 2, and the curved surface 22 is close to the protective layer 3. A second smooth layer 221 is formed on the curved surface 22, and a first smooth layer 31 is formed on the inner wall of the sheath layer 3. The first smooth layer 31 and the second smooth layer 221 are formed by coating, and the first smooth layer 31 and the second smooth layer 221 adhere to each other, reducing friction between the inner walls of the protective layer 2 and the sheath layer 3.

[0023] See Figure 1 and Figure 2 A buffer component 4 is fixed on the protective layer 2. The buffer component 4 is located inside the sheath layer 3. There are two buffer components 4, which are located on opposite sides of the protective layer 2. The distribution direction of the two buffer components 4 is perpendicular to the distribution direction of the arc surface 22. The two buffer pads abut against the inner ring of the sheath layer 3 and the protective layer 2. The buffer component 4 is used to buffer the pressure acting on the cable, so that the conductor 1 inside the protective layer 2 is not easy to break.

[0024] See Figure 1 and Figure 2 The buffer component 4 is elastic and can gradually deform and return to its original shape under the action of elasticity after being squeezed. A cavity 41 is opened on the buffer component 4, and silicone oil is filled in the cavity 41. The silicone oil is used to flow out after the buffer component 4 is broken. If the protective layer 2 is damaged, it will help reduce cable leakage.

[0025] See Figure 1 If the direction of the pressure is as follows Figure 1 As indicated by the arrow in the middle, the rotation of the protective layer 2 causes the buffer component 4 to move to the pressure application point to protect the protective layer 2 and the conductor 1. If the pressure direction is not in the direction of the arrow A in the figure, the buffer component 4 will protect the protective layer 2 and the conductor 1.

[0026] See Figure 2 and Figure 3The protective layer 2 includes an insulating layer 23, a shielding layer 24, a waterproof layer 25, and a support frame layer 26, arranged sequentially from the inside out. The support frame layer 26 includes a first support portion 261, a second support portion 262, and several reinforcing portions 263. The first support portion 261 and the second support portion 262 are located on opposite sides of the waterproof layer 25. The distribution direction of the first support portion 261 and the second support portion 262 is parallel to the distribution direction of the buffer component 4. The first support portion 261 and the second support portion 262 are fixedly connected to the support frame layer 26. Several reinforcing portions 263 are evenly distributed on the first support portion 261 and the second support portion 262. If the distribution direction of the reinforcing portions 263 is parallel to the length direction of the conductor 1, there is an angle between adjacent reinforcing portions 263, and adjacent reinforcing portions 263, together with their respective first support portion 261 or second support portion 262, form a triangle. The insulating layer 23, shielding layer 24, waterproof layer 25, and support frame layer 26 are bonded together around their perimeter. Support part one 261, support part two 262, and reinforcing part 263 are formed after curing with an organic curing adhesive. Support part one 261, support part two 262, and reinforcing part 263 help increase the support strength of the protective part in the direction parallel to the arc-shaped surface 22.

[0027] The implementation principle of a pressure-resistant cable in this application embodiment is as follows: by fixing a buffer component 4 between the protective layer 2 and the sheath layer 3, the force on the conductor 1 when the cable is subjected to pressure on one side is reduced, thereby improving the pressure resistance of the cable.

[0028] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A pressure-resistant cable, characterized in that: It includes several conductors (1), a protective layer (2) and a sheath layer (3). The protective layer (2) covers several conductors (1), and several buffer components (4) are provided on the protective layer (2). The sheath layer (3) covers the conductors (1) and several buffer components (4).

2. The pressure-resistant cable according to claim 1, characterized in that: The sheath layer (3) has a circular cross-section, the protective layer (2) has a rectangular cross-section, the two opposite ends of the protective layer (2) abut against the inner wall of the sheath layer (3), and the other two opposite ends of the protective layer (2) abut against the buffer component (4).

3. The pressure-resistant cable according to claim 2, characterized in that: An arc-shaped surface (22) is formed on the protective layer (2), and the curvature of the arc-shaped surface (22) matches the curvature of the inner wall of the sheath layer (3).

4. The pressure-resistant cable according to claim 3, characterized in that: The inner wall of the sheath layer (3) is provided with a smooth layer one (31), and the arc surface (22) is provided with a smooth layer two (221), and the smooth layer two (221) is attached to the smooth layer one (31).

5. A pressure-resistant cable according to claim 1, characterized in that: The protective layer (2) includes, from the inside out, an insulating layer (23), a shielding layer (24), a waterproof layer (25), and a supporting frame layer (26).

6. A pressure-resistant cable according to claim 5, characterized in that: The support frame layer (26) is formed by curing organic curing adhesive.

7. A pressure-resistant cable according to claim 5, characterized in that: The support frame layer (26) includes a support part one (261) and a support part two (262) and a number of reinforcing parts (263). The reinforcing parts (263) are provided on the support part one (261) and the support part two (262). The distribution direction of the number of reinforcing parts (263) is parallel to the length direction of the conductor (1). Adjacent reinforcing parts (263) and the support part one (261) or the support part two (262) are spliced ​​together to form a triangle.

8. A pressure-resistant cable according to claim 1, characterized in that: The buffer component (4) is hollow and filled with silicone oil. The buffer component (4) can recover its shape under elastic action after being squeezed.

Images