Flexible cable with bending protection structure

Abstract

The utility model discloses a flexible cable with a bending protection structure, which comprises a cable core, a shielding layer is arranged outside the cable core, an insulating layer is arranged outside the shielding layer, an armor layer is arranged outside the insulating layer, an outer sheath is arranged outside the armor layer, and protection sleeves are arranged above and below the outer ring of the outer sheath. A plurality of first springs are fixedly connected to the inner sides of the two protective sleeves, clamping sleeves are fixedly connected to the tail ends of the first springs, evenly-distributed mounting grooves are formed in the outer sides of the two protective sleeves, and two second springs are fixedly connected into the mounting grooves. According to the utility model, the plurality of protective sleeves which are matched with each other are sequentially connected end to end and are sleeved on the outer wall of the cable outer sheath, so that the cable is protected, and when the cable is dragged, the protective sleeves are in contact with the ground so as to prevent the cable from being abraded and prevent potential safety hazards caused by abrasion of an insulating layer.

Description

Technical Field

[0001] This utility model relates to the field of flexible cables, and in particular to a flexible cable with a bending protection structure. Background Technology

[0002] Flexible cables are typically rope-like cables made of several or groups of conductors twisted together. Each group of conductors is insulated from each other and is often twisted around a central core. The entire cable is covered with a highly insulating outer layer and is often installed in the air, underground, or underwater for telecommunications or power transmission.

[0003] Most existing flexible cables lack protective structures. When the cable is dragged on the ground, the insulation layer wears down, which can expose the internal core wires and cause safety hazards. Or when the cable is squeezed, the insulation layer cannot provide strong support, and the internal core wires are squeezed, which can cause the outer insulation layer to burst, also creating safety hazards. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flexible cable with a bending protection structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flexible cable with a bending protection structure, comprising a cable core, a shielding layer outside the cable core, an insulation layer outside the shielding layer, an armor layer outside the insulation layer, an outer sheath outside the armor layer, protective sleeves above and below the outer ring of the outer sheath, multiple first springs fixedly connected to the inner sides of the two protective sleeves, a clamp fixedly connected to the end of each first spring, evenly distributed mounting grooves on the outer sides of the two protective sleeves, two second springs fixedly connected within the mounting grooves, a buffer block fixedly connected to one end of each second spring, two flexible spring sheets fixedly connected to both sides of the upper protective sleeve, a pressing block fixedly connected to the outer end of each flexible spring sheet, two mounting seats fixedly connected to both sides of the lower protective sleeve, a slot on the top of each mounting seat, a slot on the outer side of each mounting seat, a retaining sleeve fixedly connected to the right side of the two protective sleeves, and positioning blocks fixedly connected to both sides of the bottom of the upper protective sleeve.

[0006] As a further description of the above technical solution:

[0007] The jacket has multiple ventilation holes running through it.

[0008] As a further description of the above technical solution:

[0009] The buffer block is disposed in the mounting groove, and the outside of the buffer block is slidably connected to the inner wall of the mounting groove.

[0010] As a further description of the above technical solution:

[0011] A through hole is provided between each of the two adjacent mounting slots, and the through hole penetrates the protective sleeve.

[0012] As a further description of the above technical solution:

[0013] Two limiting blocks are fixedly connected inside the slot, and the limiting blocks are located on both sides of the slot.

[0014] As a further description of the above technical solution:

[0015] The protective sleeve described below has positioning grooves on both sides of its top, and positioning blocks are set in the positioning grooves.

[0016] As a further description of the above technical solution:

[0017] The slot is connected to the groove.

[0018] As a further description of the above technical solution:

[0019] Both of the protective sleeves have a slot on the left side of their inner walls.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, several protective sleeves, arranged in pairs and connected end to end, are sequentially fitted onto the outer wall of the cable's outer sheath to protect the cable. When the cable is dragged, the protective sleeves contact the ground to prevent cable abrasion and to prevent safety hazards caused by insulation wear. The positioning block at the bottom of the upper protective sleeve is inserted into the positioning groove at the top of the lower protective sleeve, and the flexible spring is inserted into the slot at the top of the mounting base, facilitating quick installation of the protective sleeves. When the cable is impacted, the buffer block slides in the mounting groove, and the second spring is compressed. The elastic deformation of the spring absorbs the impact energy, reducing the impact on the cable. At the same time, the through holes on the protective sleeves and the ventilation holes on the jackets reduce the weight of the protective sleeves and jackets and also facilitate air circulation inside the protective sleeves. Attached Figure Description

[0022] Figure 1 This is a perspective view of a flexible cable with a bending protection structure proposed in this utility model;

[0023] Figure 2 An exploded view of the protective sheath of a flexible cable with a bending protection structure proposed in this utility model;

[0024] Figure 3 This is an exploded view of the overall structure of a flexible cable with a bending protection structure proposed in this utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Cable core; 2. Shielding layer; 3. Insulation layer; 4. Armoring layer; 5. Outer sheath; 6. Protective sleeve; 7. First spring; 8. Jacket; 9. Mounting groove; 10. Second spring; 11. Buffer block; 12. Through hole; 13. Tough spring; 14. Pressing block; 15. Mounting base; 16. Slot; 17. Groove; 18. Limiting block; 19. Sleeve; 20. Slot; 21. Ventilation hole; 22. Positioning block; 23. Positioning groove. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0030] Reference Figure 1-4This utility model provides an embodiment of a flexible cable with a bending protection structure, comprising a cable core 1, a shielding layer 2 outside the cable core 1, an insulation layer 3 outside the shielding layer 2, an armor layer 4 outside the insulation layer 3, and an outer sheath 5 outside the armor layer 4. Protective sleeves 6 are provided above and below the outer circumference of the outer sheath 5, providing protection for the cable's exterior. Multiple first springs 7 are fixedly connected to the inner sides of both protective sleeves 6, with clamps 8 fixedly connected to the ends of the first springs 7. The elastic force of the first springs 7 enhances the adaptability of the clamps 8, improving the installation effect of the cable's outer sheath 5. Evenly distributed mounting grooves 9 are provided on the outer sides of both protective sleeves 6, with two second springs 10 fixedly connected within each groove. A buffer block 11 is fixedly connected to one outward end of each second spring 10, allowing the buffer block 11 to contract under pressure. Two flexible spring pieces 13 are fixedly connected to both sides of the upper protective sleeve 6, with the lower part of each flexible spring piece 13 forming a U-shape. A pressing block 14 is fixedly connected to the outer end of the flexible spring sheet 13. By applying pressure to the pressing block 14, the outer end of the flexible spring sheet 13 can contract and deform, contacting the limiting block 18, thus facilitating the removal of the protective sleeve 6. Two mounting seats 15 are fixedly connected to both sides of the lower protective sleeve 6. The top of the mounting seat 15 has a slot 16 for easy installation of the flexible spring sheet 13. The outer side of the mounting seat 15 has a slot 17. A retaining sleeve 19 is fixedly connected to the right side of both protective sleeves 6. The retaining sleeve 19 fits into the retaining slot 20, facilitating the combination of multiple installed protective sleeves 6. Positioning blocks 22 are fixedly connected to both sides of the bottom of the upper protective sleeve 6.

[0031] Multiple ventilation holes 21 are provided through the sleeve 8 to facilitate air circulation. A buffer block 11 is installed in the mounting groove 9, and its exterior is slidably connected to the inner wall of the mounting groove 9, allowing it to extend and retract within the groove. Through holes 12 are provided between adjacent mounting grooves 9, penetrating the protective sleeve 6. The through holes 12 on the protective sleeve 6 and the ventilation holes 21 on the sleeve 8 reduce the weight of the protective sleeve 6 and the sleeve 8, while also promoting air circulation within the protective sleeve 6. Two limiting blocks 18 are fixedly connected within the slot 16, located on both sides of the slot 17, limiting the outer end of the flexible spring sheet 13. Positioning grooves 23 are provided on both sides of the top of the lower protective sleeve 6, with positioning blocks 22 installed within them. Inserting the positioning blocks 22 into the positioning grooves 23 improves the stability of the two protective sleeves 6 after installation. The slot 17 communicates with the slot 16, and a retaining groove 20 is provided on the left side of the inner wall of both protective sleeves 6.

[0032] Working principle: In use, several protective sleeves 6, arranged in pairs, are sequentially placed end-to-end on the outer wall of the cable to protect it. When installing the upper and lower protective sleeves 6, the outer sheath 5 is placed between the two protective sleeves 6. Then, the bottom positioning block 22 of the upper protective sleeve 6 is aligned with the positioning groove 23 at the top of the lower protective sleeve 6. Simultaneously, the flexible spring tabs 13 on both sides of the upper protective sleeve 6 are aligned with the slots 16 at the top of the mounting bases 15 on both sides of the lower protective sleeve 6 and inserted. At this time, the U-shaped flexible spring tabs 13 are compressed by the limiting block 18 and contract, causing the pressing block 14 to enter the slot 17. Once the flexible spring tabs 13 are fully inserted into the slots 16, they disengage from the compression of the limiting block 18 and... The reset mechanism opens within the slot 16 and limits the flexible spring 13 via the limiting block 18. It then engages with the positioning block 22, which is inserted into the positioning groove 23, to quickly install the two protective sleeves 6. When multiple sets of protective sleeves 6 need to be combined, before installing the upper and lower protective sleeves 6, the retaining sleeve 19 on the right side of one set of protective sleeves 6 should be placed into the retaining groove 20 on the left side of the other set. After installing the upper and lower protective sleeves 6, the retaining sleeve 19 is engaged in the retaining groove 20 for limiting, thus achieving combination. When the cable is impacted, the buffer block 11 slides within the mounting groove 9, and the second spring 10 is compressed. The elastic deformation of the spring absorbs the impact energy, reducing the impact on the cable. Furthermore, when the cable is bent, the spiral armor layer 4 between the outer sheath 5 and the insulation layer 3 can be bent synchronously without damaging the cable structure. Simultaneously, the structural support of the armor layer 4 effectively strengthens the compressive strength of the outer sheath 5, thereby protecting the cable core 1 inside the cable from compression and damage. The elastic force of the first spring 7 makes the jacket 8 more adaptable and improves the installation effect of the cable outer sheath 5.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible cable with a bend protection structure, comprising a cable core (1), characterized in that: The cable core (1) is provided with a shielding layer (2) on the outside, an insulation layer (3) on the outside, an armor layer (4) on the outside, an outer sheath (5) on the outside, and protective sleeves (6) on both the upper and lower sides of the outer sheath (5). Multiple first springs (7) are fixedly connected to the inner side of each of the two protective sleeves (6). A clip (8) is fixedly connected to the end of each of the first springs (7). The outer sides of each of the two protective sleeves (6) are provided with evenly distributed mounting grooves (9). Two second springs (10) are fixedly connected in the mounting grooves (9). The second spring (10) is fixedly connected to a buffer block (11) at one end. The upper protective sleeve (6) is fixedly connected to two flexible spring pieces (13) on both sides. The outer end of the flexible spring piece (13) is fixedly connected to a pressing block (14). The lower protective sleeve (6) is fixedly connected to two mounting seats (15) on both sides. The mounting seat (15) has a slot (16) on the top and a groove (17) on the outer side. The two protective sleeves (6) are fixedly connected to a retainer (19) on the right side. The upper protective sleeve (6) is fixedly connected to two positioning blocks (22) on both sides of the bottom.

2. A flexible cable with a bend protection structure according to claim 1, characterized in that: The jacket (8) has multiple ventilation holes (21) extending through it.

3. A flexible cable with a bend protection structure according to claim 1, characterized in that: The buffer block (11) is disposed in the mounting groove (9), and the outside of the buffer block (11) is slidably connected to the inner wall of the mounting groove (9).

4. A flexible cable with a bend protection structure according to claim 1, characterized in that: A through hole (12) is provided between each of the two adjacent mounting slots (9), and the through hole (12) penetrates the protective sleeve (6).

5. A flexible cable with a bend protection structure according to claim 1, characterized in that: Two limiting blocks (18) are fixedly connected inside the slot (16), and the limiting blocks (18) are arranged on both sides of the slot (17).

6. A flexible cable with a bend protection structure according to claim 1, characterized in that: The protective sleeve (6) described below has positioning grooves (23) on both sides of its top, and positioning blocks (22) are set in the positioning grooves (23).

7. A flexible cable with a bend protection structure according to claim 1, characterized in that: The slot (17) is connected to the slot (16).

8. A flexible cable with a bend protection structure according to claim 1, characterized in that: Both of the protective sleeves (6) have a slot (20) on the left side of their inner walls.

Images