Cable with pulling resistance

Abstract

The utility model discloses an anti-pulling cable, which belongs to the technical field of cable anti-pulling, and comprises a first cable protection shell, a second cable protection shell, a first telescopic pipeline and a cable core, and the first telescopic pipeline is positioned between the first cable protection shell and the second cable protection shell. The cable core penetrates through the first cable protection shell and the second cable protection shell, the first cable protection shell comprises a cable protection shell body, cavities and an inner pipeline, and the cavities are distributed in the edge of the end face of the cable protection shell body in an array mode. The two telescopic pipelines and the anti-pulling structure are arranged between the two cable protection shells, the first telescopic pipeline covers the anti-pulling structure, the second telescopic pipeline achieves communication between the two cable protection shells, and the anti-pulling structure achieves connection between the first cable protection shell and the second cable protection shell through the anti-pulling inner insertion block and the limiting telescopic rod. Certain pulling space exists in the pulling process of the first cable protection shell and the second cable protection shell, and then the tensile property of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable anti-pulling, in particular to a cable with anti-pulling function. Background Art

[0002] Cables are made of one or more mutually insulated conductors and an outer insulating protective layer, which transmit electricity or information from one place to another;

[0003] After searching, it was found that the "A Tensile Bending Cable for Top Drive Device" disclosed by Chinese Patent Publication No. CN209625840U includes a cable body and multiple rubber strips; the cable body is arranged in a cylindrical spiral line, the rubber strip is connected to the cable body and parallel to the axial direction of the cylindrical spiral line, and the multiple rubber strips are evenly arranged along the circumference of the cylindrical spiral line; preferably, the ends of the multiple rubber strips are fixedly connected to the ends of the cable body; preferably, the ends of the multiple rubber strips are vulcanized around the ends of the cable body to form a connecting part; it also includes a flange, and the flange is connected to the connecting part; preferably, the outer circumference of the connecting part is provided with a thread, the inner wall of the flange is provided with a thread, and the flange is threadedly connected to the connecting part; the proposed tensile bending cable for the top drive device, because the cable body is arranged in a cylindrical spiral line, the cable body allows a larger bending angle, and the rubber strip is fixed on the cable body, the rubber strip has good flexibility, and the cable body can be indirectly pulled by pulling the rubber strip to avoid direct pulling of the cable body. The cable body is damaged. If the cable body is directly pulled, the rubber strip can limit the cable body to prevent the cable body from being pulled excessively;

[0004] During the cable pulling process, the current cable outer packaging layer has a relatively general pulling resistance. This structure has breakpoints when multiple cables are connected. Therefore, it is necessary to improve the pulling resistance of the cable outer packaging layer, and also pay attention to the ease of assembly. Utility Model Content

[0005] The main purpose of the utility model is to provide a cable with anti-pulling function, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A cable with anti-pulling property comprises a first cable protection shell, a second cable protection shell, a first telescopic pipe and a cable core, wherein the first telescopic pipe is located between the first cable protection shell and the second cable protection shell, and the cable core passes through the first cable protection shell and the second cable protection shell, and the first cable protection shell comprises a cable protection shell, a cavity and an inner pipe, an end face edge array of the cable protection shell is provided with cavities, and an inner pipe is provided inside the cable protection shell;

[0008] An anti-pull structure is installed in the cavity of the first cable protection shell and the second cable protection shell, and the anti-pull structure includes an anti-pull insert block and a limiting telescopic rod. An anti-pull insert block is installed in each of the cavities, and a limiting hole is provided on the end face of the anti-pull insert block. A limiting telescopic rod is installed in two corresponding limiting holes. A connecting pipe is provided at the port of each of the inner pipes, and a second telescopic pipe is provided between the two connecting pipes.

[0009] In a further preferred embodiment of the present application, the first cable protection shell and the second cable protection shell have the same structure, and the first telescopic pipe is fixed to the first cable protection shell and the second cable protection shell by hot melting;

[0010] In a further preferred embodiment of the present application, the connecting pipe and the second telescopic pipe are designed as one piece, and the connecting pipe is fixed to the two inner pipes by hot melting;

[0011] In a further preferred embodiment of the present application, the cable protection housing and the inner pipe are designed as one piece, and the inner pipe is a hexagonal pipe, and the plurality of cavities are distributed in an annular shape on the cable protection housing;

[0012] In a further preferred embodiment of the present application, the tensile insert block is adapted to the cavity, and the tensile insert block is fixed to the first cable protection shell or the second cable protection shell by hot melt, and the baffles at both ends of the limiting telescopic rod are limited in the limiting holes of the tensile insert block;

[0013] According to a further preferred embodiment of the present application, return springs are sleeved on both ends of the position-limiting telescopic rod, and the return springs are confined in the position-limiting holes.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, two telescopic pipes and an anti-pull structure are arranged between the two cable protection shells. The first telescopic pipe covers the anti-pull structure, and the second telescopic pipe realizes the connection between the two cable protection shells. The anti-pull structure realizes the connection between the first cable protection shell and the second cable protection shell through the anti-pull insert block and the limiting telescopic rod. There is a certain pulling space during the pulling process of the first cable protection shell and the second cable protection shell, thereby improving the tensile performance of the cable. A plurality of limiting telescopic rods are distributed in the telescopic pipe, which effectively improves the anti-bending performance of the place. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a diagram showing the cable protection housing, telescopic pipe and anti-pull structure of the utility model;

[0018] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0019] Figure 4 It is a schematic cross-sectional view of the cable protection shell and the anti-pulling structure of the utility model.

[0020] In the figure: 1. first cable protection shell; 11. cable protection shell; 12. cavity; 13. inner pipe; 2. second cable protection shell; 3. first telescopic pipe; 4. second telescopic pipe; 5. connecting pipe; 6. anti-pull structure; 61. anti-pull inner insert block; 62. limit telescopic rod; 63. limit hole; 7. cable core. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1 - Figure 4 As shown, a cable with anti-pulling property comprises a first cable protective shell 1, a second cable protective shell 2, a first telescopic pipe 3 and a cable core 7, wherein the first telescopic pipe 3 is located between the first cable protective shell 1 and the second cable protective shell 2, and the cable core 7 passes through the first cable protective shell 1 and the second cable protective shell 2, and the first cable protective shell 1 and the second cable protective shell 2 have the same structure, and the first telescopic pipe 3 is fixed to the first cable protective shell 1 and the second cable protective shell 2 by hot-melt, and the edges of both ends of the first telescopic pipe 3 are sleeved at the ports of the first cable protective shell 1 and the second cable protective shell 2, and the edges are fixed by hot-melt after being sleeved, and this method is simple, efficient and firm; the first cable protective shell 1 comprises a cable protective shell 11, a cavity 12 and an inner pipe 13, and the end face edge array of the cable protective shell 11 is provided with the cavity 12, and the inner pipe 13 is provided inside the cable protective shell 11; the cable protective shell 11 and the inner pipe 13 are designed as an integrated body, the inner pipe 13 is a hexagonal pipe, and a plurality of cavities 12 are distributed in an annular shape on the cable protective shell 11, and the inner pipe 13 and the cable protective shell 11 are injection molded;

[0023] An anti-pull structure 6 is installed in the cavity 12 of the first cable protection shell 1 and the second cable protection shell 2. The anti-pull structure 6 includes an anti-pull insert block 61 and a limiting telescopic rod 62. An anti-pull insert block 61 is installed in each cavity 12. The end surface of the anti-pull insert block 61 is provided with a limiting hole 63, and the limiting telescopic rod 62 is installed in two corresponding limiting holes 63. The anti-pull insert block 61 is adapted to the cavity 12, and the anti-pull insert block 61 is fixed to the first cable protection shell 1 or the second cable protection shell 2 by hot melt. The two end baffles of the limiting telescopic rod 62 are limited in the limiting holes 63 of the anti-pull insert block 61; the two end rod bodies of the limiting telescopic rod 62 are provided with reset springs, and the reset springs are limited in the limiting holes 63. The anti-pull insert block 61 can be fixed in the cavity 12 of the cable protection shell 11 by hot melt fixing. The tensile insert block 61 and the cable protection shell 11 may also be designed as an integrated whole. When the integrated design is made of soft material, the limiting telescopic rod 62 is limited in the limiting hole 63 by the baffle, and falls in an effective way; a connecting pipe 5 is provided at the port of each inner pipe 13, and a second telescopic pipe 4 is provided between the two connecting pipes 5; the connecting pipe 5 and the second telescopic pipe 4 are designed as an integrated whole, and the connecting pipe 5 is fixed to the two inner pipes 13 by hot melting. The cross-section of the connecting pipe 5 and the second telescopic pipe 4 is a hexagonal pipe setting. The two connecting pipes 5 are placed at both ends of the second telescopic pipe 4 to extend to the inner pipes 13 of the first cable protection shell 1 and the second cable protection shell 2. It is necessary to install the inner pipe 13 and the connecting pipe 5 first, insert the connecting pipe 5 into the inner pipe 13, and then fix the connecting pipe 5 and the inner pipe 13 by hot melting;

[0024] In the assembly of multiple cables, the anti-pull structure 6 can be quickly installed and can be disassembled and recycled. The limiting telescopic rod 62 of the anti-pull structure 6 can be installed with a reset spring, which can enhance the reset of the limiting telescopic rod 62 and effectively improve the anti-pull performance of this part.

[0025] The utility model provides two telescopic pipes and an anti-pull structure between two cable protection shells. The first telescopic pipe covers the anti-pull structure, and the second telescopic pipe realizes the connection between the two cable protection shells. The anti-pull structure realizes the connection between the first cable protection shell and the second cable protection shell through an anti-pull inner plug-in block and a limiting telescopic rod. There is a certain pulling margin during the pulling process of the first cable protection shell and the second cable protection shell, thereby improving the tensile performance of the cable. A plurality of limiting telescopic rods are distributed in the telescopic pipe, which effectively improves the anti-bending performance of the part.

[0026] The above are the preferred embodiments of the utility model and the technical principles used therein. For those skilled in the art, without departing from the spirit and scope of the utility model, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the utility model shall fall within the protection scope of the utility model.

Claims

1. A cable with anti-pulling properties, comprising a first cable protective shell (1), a second cable protective shell (2), a first telescopic pipe (3) and a cable core (7), wherein the first telescopic pipe (3) is located between the first cable protective shell (1) and the second cable protective shell (2), and the cable core (7) passes through the first cable protective shell (1) and the second cable protective shell (2), characterized in that: The first cable protection shell (1) comprises a cable protection shell (11), a cavity (12) and an inner pipe (13); the cavities (12) are distributed in an array at the edge of the end surface of the cable protection shell (11), and the inner pipe (13) is provided inside the cable protection shell (11); An anti-pull structure (6) is installed in the cavity (12) of the first cable protection shell (1) and the second cable protection shell (2), and the anti-pull structure (6) comprises an anti-pull insert block (61) and a limiting telescopic rod (62). An anti-pull insert block (61) is installed in each of the cavities (12), and a limiting hole (63) is provided on the end surface of the anti-pull insert block (61), and the limiting telescopic rod (62) is installed in two corresponding limiting holes (63). A connecting pipe (5) is provided at the port of each of the inner pipes (13), and a second telescopic pipe (4) is provided between the two connecting pipes (5).

2. A cable with pull-resistance according to claim 1, characterized in that: The first cable protection shell (1) and the second cable protection shell (2) have the same structure, and the first telescopic pipe (3) is fixed to the first cable protection shell (1) and the second cable protection shell (2) by hot melting.

3. A cable with pull-resistance according to claim 2, characterized in that: The connecting pipe (5) and the second telescopic pipe (4) are designed as one piece, and the connecting pipe (5) is fixed to the two inner pipes (13) by hot melting.

4. The cable with anti-pulling properties according to claim 3, characterized in that: The cable protection shell (11) and the inner pipe (13) are designed as one piece, and the inner pipe (13) is a hexagonal pipe. The plurality of cavities (12) are distributed in a ring shape on the cable protection shell (11).

5. The cable with anti-pulling property according to claim 4, characterized in that: The tensile insert block (61) is adapted to the cavity (12), and the tensile insert block (61) is fixed to the first cable protection shell (1) or the second cable protection shell (2) by hot melting, and the stoppers at both ends of the limiting telescopic rod (62) are limited in the limiting hole (63) of the tensile insert block (61).

6. The cable with anti-pulling properties according to claim 5, characterized in that: The two ends of the position-limiting telescopic rod (62) are sleeved with return springs, and the return springs are limited in the position-limiting hole (63).

Images