CN206726820U - A pressure-resistant cable - Google Patents

Abstract

The utility model discloses a resistance to compression cable when having solved cable and hard thing contact, the supporting sleeve of tuft structure is when the atress, and only vertical direction can bear gravity, the less problem of external force that bears, and its technical scheme main points are, including cable core and the sheath of parcel at the cable core surface, the external fixation of sheath has many cylindrical protection strip, many the length direction of cylindrical protection strip is the same with the length direction of sheath, reaches the purpose with the external force dispersion.

Description

A pressure-resistant cable

technical field

The utility model relates to the technical field of communication, in particular to a pressure-resistant cable.

Background technique

There are thousands of types of wire and cable products, which are used in various industries, such as advanced manufacturing, automation/intelligent transmission technology, flexible power transmission technology, high-voltage AC transmission system series compensation and parallel compensation technology, etc. There are two general uses of them, one is to transmit current, and the other is to transmit signals. The most basic structure of a general cable is a conductor, an insulating layer and an outer sheath, and some structures are added according to requirements, such as a shielding layer, an inner sheath or an armored layer, etc., and some filling materials are added for the roundness of the cable.

A Chinese utility model patent with a notification number of CN203300274U has been retrieved, which discloses a pressure-resistant cable, which includes a cable core and a sheath. An elastic split-folding pressure-bearing sleeve is placed outside the sheath. An elastic opening-folding pressure-bearing sleeve is placed outside the sheath, and the pressure-bearing sleeve is flexibly fitted with the sheath through the tuft support sleeve.

However, when the cable is in contact with a hard object, only the vertical direction can bear gravity when the supporting sleeve of the tuft structure is stressed, and the external force it bears is relatively small.

Utility model content

The purpose of the utility model is to provide a pressure-resistant cable, which has the advantage of dispersing external force.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a compression-resistant cable, including a cable core and a sheath wrapped on the outer surface of the cable core, and the outer surface of the sheath is fixed with a plurality of cylindrical protection strips, the length direction of the plurality of cylindrical protection strips is the same as the length direction of the sheath.

By adopting the above technical scheme, when the cable is subjected to an external force, the external force first acts on the cylindrical protective strip, and the cylindrical protective strip is compressed by force to reduce the influence of the external force on the cable core; when the external force acts on the cylindrical protective strip from different directions Strips, the cylindrical protective strips have uniform dispersion force, and are rarely concentrated on a certain position of the cylindrical protective strips, so that the cylindrical protective strips are not easily damaged, which ensures that the cable has better compression resistance.

In a further configuration of the present invention, the plurality of cylindrical protection strips are closely arranged, and the arc surfaces of the plurality of cylindrical protection strips conflict with each other.

By adopting the above technical scheme, when the cable is subjected to an external force, the external force acts on the cylindrical protective strip, and the cylindrical protective strip is deformed under the force; during the deformation process of the cylindrical protective strip, the adjacent cylindrical protective strip will be squeezed. The strips, and then the adjacent cylindrical protection strips play a supporting role, reducing the deformation of the stressed cylindrical protection strips, so that the cylindrical protection strips can bear more pressure.

According to the further setting of the utility model, the cylindrical protection strip and the sheath are integrally formed.

By adopting the above technical scheme, the cylindrical protective strip and the sheath are integrally formed, so that multiple cylindrical protective strips form an integral body; when the cylindrical protective strip is subjected to external force, the cylindrical protective strip is not easy to shift, and the multiple cylindrical protective strips The cylindrical protective strips conflict with each other and support each other, so that the cylindrical protective strips are not easily deformed.

According to a further setting of the present invention, the plurality of cylindrical protective strips are elastic rubber strips.

By adopting the above technical solution, the elastic rubber material is light and the manufacturing cost is low. The elastic rubber material can quickly return to its original shape after being squeezed. When the elastic rubber material is cut by a sharp tool, the cross sections of the cut parts can be tightly attached together, which has little influence on the overall elastic force.

According to the further setting of the present invention, the outer surface of the plurality of cylindrical protective strips away from the sheath (2) is wound with a braided layer, and the braided layer is made of ultra-high molecular weight polyethylene short fiber layer.

By adopting the above technical solution, the material of the braided layer can be ultra-high molecular weight polyethylene short fibers. When the cable is cut by an external sharp object, it is difficult for the sharp object to cut the braiding layer, thereby reducing damage to the cylindrical protective strip by the sharp object and ensuring the service life of the cylindrical protective strip. The ultra-high molecular weight polyethylene staple fiber layer is light in weight, reducing the weight of the cable. The braided layer made of ultra-high molecular weight polyethylene short fiber layer is relatively soft, which makes the cable relatively soft as a whole and is convenient for winding the cable.

According to a further setting of the present invention, the outer surface of the braided layer away from the cylindrical protection strip is fixed with a cover.

Preferably, the outer covering is made of PVC.

By adopting the above-mentioned technical solution, the sheath is the part where the outermost layer of the cable plays a protective role. The outer covering can prevent the braided layer from being exposed to the air, and at the same time make the braided layer not easy to loosen and maintain good tightness. Corrosive substances on the outside contact the outer covering first, reducing the impact on the inside of the cable.

In summary, the utility model has the following beneficial effects: anti-pressure, anti-cutting, anti-corrosion. Generally speaking, the utility model has simple structure and strong practicability.

Description of drawings

Fig. 1 is a schematic structural diagram of this embodiment.

Reference signs: 1. cable core; 2. sheath; 3. cylindrical protection strip; 4. braiding layer; 5. sheath.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

A pressure-resistant cable, as shown in Fig. 1 , includes a cable core 1 for conducting electricity and a sheath 2 wrapped on the outer surface of the cable core 1, and there are two cable cores 1 in total. Sheath 2 wraps around core 1, giving the cable a cylindrical shape. Thirty cylindrical protective strips 3 protrude from the outer surface of the sheath 2 , the length direction of the cylindrical protective strips 3 is the same as that of the sheath 2 , and a plurality of cylindrical protective strips 3 are closely arranged. A plurality of cylindrical protective strips 3 are made of elastic rubber strips, which can be deformed under pressure and are cheap. The cylindrical protection strip 3 is integrally formed with the sheath. Therefore, the cylindrical protective strip 3 has certain thermoplasticity, and the sheath 2 is combined with the cylindrical protective strip 3 through a mold. The outer surface of the cylindrical protective strip 3 away from the sheath 2 is wound with a braided layer 4, the braided layer 4 is made of ultra-high molecular weight polyethylene short fibers, and the braided layer 4 makes the cylindrical protective strip 3 more tightly together, and at the same time, The ultra-high molecular weight polyethylene short fiber has the function of anti-cutting, and reduces the cutting of the cable core 1 by hard objects. The ultra-high molecular weight polyethylene short fiber material is relatively light, which can reduce the weight of the cable, facilitate the handling of the staff, and play a labor-saving role. An outer jacket 5 is sheathed on the outer surface of the braided layer 4 away from the cylindrical protective strip 3 . The outer cover 5 is made of PVC, which plays the role of sun protection and anti-corrosion. It is the outermost protective layer of the cable, and can be engraved on its surface. At the same time, PVC materials of different colors can be used to distinguish different cables.

When the cable is subjected to an external force, the external force acts on the cylindrical protective strip 3, and the cylindrical protective strip 3 is deformed under the force; during the deformation process of the cylindrical protective strip 3, the adjacent cylindrical protective strip 3 will be squeezed, Furthermore, the adjacent cylindrical protection strip 3 plays a supporting role, reducing the deformation of the stressed cylindrical protection strip 3, so that the cylindrical protection strip 3 can bear more pressure. External forces act on the cylindrical protective strip 3 from different directions, and the cylindrical protective strip 3 distributes the force evenly, and seldom concentrates on a certain position of the cylindrical protective strip 3 . Although a cylindrical protective strip 3 is relatively easy to deform, when the cylindrical protective strip 3 deforms, it will squeeze the adjacent cylindrical protective strip 3, and then the adjacent cylindrical protective strip 3 plays a supporting role , which is equivalent to distributing the pressure on the stressed cylindrical protective strip 3 , so that the pressure on the entire cable is relatively large. When the cable falls from a high place, the cylindrical protective strip 3 can relieve the collision force between the cable and the ground, reduce the impact on the cable core 1, and thus enable the normal use of the cable. When the cable is stressed in all directions, the force is distributed evenly and the compression resistance is strong.

Claims (7)

1. A compression-resistant cable, comprising a cable core (1) and a sheath (2) wrapped on the outer surface of the cable core (1), characterized in that the outer surface of the sheath (2) is fixed with a plurality of cylinders shaped protection strips (3), the length direction of the plurality of cylindrical protection strips (3) is the same as the length direction of the sheath (2). 2. A compression-resistant cable according to claim 1, characterized in that, a plurality of said cylindrical protection strips (3) are closely arranged, and one of the arc surfaces of said plurality of said cylindrical protection strips (3) contradict each other. 3. The compression-resistant cable according to claim 2, characterized in that, the cylindrical protective strip (3) and the sheath (2) are integrally formed. 4. A compression-resistant cable according to claim 3, characterized in that, the plurality of cylindrical protective strips (3) are elastic rubber strips. 5. A compression-resistant cable according to claim 1, characterized in that, a plurality of said cylindrical protective strips (3) are wound with braided layers (4) on the outer surface away from the sheath (2), said braided Layer (4) is made from a layer of ultra-high molecular weight polyethylene staple fibers. 6. A compression-resistant cable according to claim 5, characterized in that an outer sheath (5) is fixed on the outer surface of the braiding layer (4) away from the cylindrical protective strip (3). 7. The compression-resistant cable according to claim 6, characterized in that, the outer sheath (5) is made of PVC.