Cable insulation protective sleeve

Abstract

A cable insulation protective sleeve comprises an arc-shaped part extending along the length direction of a cable inner core, and two ends of the arc-shaped part are connected with two sections of extension parts. The two sections of extension parts are respectively connected with a first bending part and a second bending part which are bent towards the inner side, and the first bending part and the second bending part are mutually inserted; a supporting plate is movably arranged between the two extending parts, and a jacking structure is arranged on the side, away from the arc-shaped part, of the supporting plate and can support and limit the supporting plate. The movable supporting plate is arranged between the two extending parts, the distance between the supporting plate and the arc-shaped parts and the size of the inner cavity can be adjusted conveniently, cable inner cores of various sizes can be adapted, through the design of the jacking structure, the structure is simple, the supporting plate is jacked conveniently and rapidly, and the practicability of the protective sleeve is greatly improved.

Description

Technical Field

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

[0002] A cable is an electrical energy or signal transmission device, which is usually formed by twisting several or several groups of wires into a rope-like form. In order to improve insulation and waterproof properties, an insulating protective sleeve needs to be sheathed on the outside of the metal cable. The existing protective sleeve usually adopts a heat shrink process to cover the outer side of the cable with the protective sleeve, which has excellent electrical insulation performance and waterproof and moisture-proof properties. The heat shrink protective sleeve is not suitable for places with large wear, such as overhead lines of railway systems and areas with dense branches. It is very easy to wear and tear and aging after long-term use, which exposes the inner core of the cable and has poor safety. In addition, the protective sleeve needs to be destroyed during maintenance and replacement. In order to solve the above problems, the Chinese patent number is CN215680156U, which discloses an insulating protective sleeve for a cable, which is easy to install and disassemble through a snap-on connection. However, in actual use, the overall shape is cylindrical with the same shape as the cable, and the stability is poor when laid on the ground. Moreover, a protective sleeve can only be applied to one cable size, and a protective sleeve of corresponding size needs to be customized according to the size of the cable. The scope of application is narrow and the practicality is poor. Utility Model Content

[0003] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a cable insulation protective cover.

[0004] The technical solution of this utility model is as follows:

[0005] A cable insulation protective cover comprises an arc-shaped portion extending along the length direction of the cable inner core, and two ends of the arc-shaped portion are connected to two extension portions;

[0006] The extension parts at both ends are respectively connected with a first bending part and a second bending part that are bent toward the inside, and the first bending part and the second bending part are plugged into each other;

[0007] A support plate is movably arranged between the extension parts at both ends, and a tightening structure is arranged on one side of the support plate away from the arc-shaped part, which can support and limit the support plate.

[0008] In order to ensure stability when laying the cable after wrapping, the extension parts at both ends are arranged horizontally, and the first bending part and the second bending part are perpendicular to the corresponding extension parts.

[0009] In order to achieve the plug-in connection between the first bending portion and the second bending portion, an arrow-shaped plug-in end is provided at the bottom end of the first bending portion, and the direction of the arrow faces the second bending portion;

[0010] A V-shaped accommodating end is disposed at the upper end of the second bending portion, and the opening faces the plug-in end, and the plug-in end can be inserted into the accommodating end and fixed.

[0011] In order to achieve the fixation of the plug-in end and the receiving end, the plug-in end is provided with inclined first protrusions on both sides, and the receiving end is provided with an inclined second protrusion, and the first protrusion cooperates with the second protrusion to fix the plug-in end.

[0012] In order to improve the stability of the first protrusion and the second protrusion when they are limited to each other, thereby ensuring the stability of the cooperation between the plug-in end and the accommodating end and preventing the first bending portion from detaching from the second bending portion, the first protrusion and the second protrusion are each provided with multiple groups, and the number of the two groups is kept consistent.

[0013] The specific designed number of the first protrusions and the second protrusions is that the first protrusions and the second protrusions are arranged in two groups up and down, and the intervals between the two groups of first protrusions and the second protrusions are consistent.

[0014] In order to improve the stability and balance of the support plate, the tightening structure includes two groups, which are movably connected to the first bending portion and the second bending portion respectively.

[0015] The specific design of the tightening structure is that the tightening structure includes a plurality of studs threadedly connected to the first bending portion or the second bending portion, and the plurality of studs are arranged along the length direction of the cable inner core;

[0016] A plurality of accommodating holes are provided on one side of the support plate away from the arc-shaped portion, corresponding to the positions of the studs, and the studs can be inserted into the accommodating holes to limit the support plate.

[0017] In order to improve the stability of the stud during installation, a mounting seat is provided inside the extension portion, and the stud passes through the mounting seat and is threadedly connected thereto.

[0018] In order to enable the support plate to move along the inner side of the extension part, adjust the distance between the arc-shaped parts, and adapt to the wrapping of cable cores of various sizes, sliding bars are arranged on the upper and lower ends of the support plate, and a sliding groove for the sliding bar to slide is opened in the horizontal direction on the inner side of the extension part.

[0019] The beneficial effects of the utility model are as follows: the utility model is an insulating cable protective cover, which firstly adopts an arc-shaped portion, two extension portions and the plug-in connection of the first bent portion and the second bent portion, and adopts elastic insulating material to form an inner cavity for accommodating the cable inner core, thereby realizing the wrapping of the cable inner core and protecting the cable inner core; at the same time, the plug-in structure of the first bent portion and the second bent portion facilitates the installation and disassembly of the protective cover, facilitates the inspection and replacement of the cable, can be recycled, reduces the waste of materials, and the mutual cooperation between the plug-in end and the accommodating end makes the protective cover more stable; and by arranging a movable support plate between the two extension portions, it is convenient to adjust the distance between the arc-shaped portion and the size of the inner cavity, and can adapt to cable inner cores of various sizes; through the design of the tightening structure, the structure is simple, and the support plate can be tightened conveniently and quickly, which greatly improves the practicality of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0021] In the attached picture:

[0022] Figure 1 It is a schematic diagram of the protective cover structure;

[0023] Figure 2 It is a cross-sectional view of the protective cover structure;

[0024] Figure 3 It is the right view of the protective cover structure;

[0025] The components represented by the reference numerals in the figure are:

[0026] 1. Cable core; 2. Arc-shaped portion; 3. Extension portion; 4. First bending portion; 41. Plug-in end; 42. First protrusion; 5. Second bending portion; 51. Accommodating end; 52. Second protrusion; 6. Support plate; 7. Tightening structure; 71. Stud; 72. Mounting seat; 8. Accommodating hole; 9. Slide bar; 10. Slide groove. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0028] Example

[0029] As mentioned in the background technology, in order to meet the strength requirements, improve the mechanical strength and wear resistance of the cable protective cover, be able to meet the use in railway systems and areas with heavy wear such as dense tree branches, and facilitate installation and disassembly for replacement or maintenance, a snap-on protective cover is used. However, the protective cover in the prior art has poor stability when laid on the ground, and one protective cover is only suitable for one size of cable core 1, which requires personalized customization, is not universal, and has a narrow scope of application. Therefore, the inventor has made improvements on the basis of the existing snap-on protective cover and designed a new type of cable insulation protective cover, which is described in detail below in conjunction with the drawings.

[0030] This embodiment provides a cable insulation protective cover, see Figure 1 , including an arc-shaped portion 2 extending along the length direction of the cable core 1, the central angle of the arc-shaped portion 2 is 90°-180°, the top of the arc can limit one side of the cable core 1, and extension portions 3 are provided at both ends of the arc-shaped portion 2. The extension portion 3 is provided with two sections, which are located on the upper and lower sides of the cable core 1 in the cross-sectional direction, and can limit the upper and lower sides of the cable core 1. In this embodiment, the two sections of the extension portion 3 are arranged horizontally, so that when the cable is laid on the ground, the extension portion 3 located below can directly contact the ground, replacing the cylindrical structure of the prior art, so that the cable can be more stable.

[0031] Based on the above structure, combined with Figure 2 The two extension portions 3 are respectively connected with a first bending portion 4 and a second bending portion 5 that are bent inward. In this embodiment, the first bending portion 4 and the second bending portion 5 are both perpendicular to the corresponding extension portion 3, further improving the overall stability of the protective cover. The first bending portion 4 and the second bending portion 5 are plugged into each other, and the vertical center line of the first bending portion 4 and the vertical center line of the second bending portion 5 are on the same vertical line, ensuring the stability of the plugging of the first bending portion 4 and the second bending portion 5 to prevent the offset from causing the two to fall off easily. After the first bending portion 4 and the second bending portion 5 are plugged into each other, a accommodating cavity can be formed by surrounding the arc portion 2, the two extension portions 3, the first bending portion 4 and the second bending portion 5 for wrapping the cable core 1.

[0032] It should be noted that the arc portion 2, the two extension portions 3, the first bending portion 4 and the second bending portion 5 are all made of insulating elastic material, specifically silicone material, but not limited to silicone material, which ensures insulation while making the protective cover have a certain elasticity, making it convenient to open it at the plug-in position and wrap the cable core 1.

[0033] In this embodiment, in order to achieve the plug-in connection between the first bent portion 4 and the second bent portion 5, the bottom end of the first bent portion 4 includes an arrow-shaped plug-in end 41, and the arrow direction is toward the second bent portion 5. Correspondingly, the upper end of the second bent portion 5 includes a V-shaped accommodating end 51, and the opening is toward the plug-in end 41. The arrow-shaped plug-in end 41 can easily enter the opening of the accommodating end 51, and the plug-in end 41 can be fixed in the accommodating end 51 after insertion. Specifically, the upper end of the second bent portion 5 includes a V-shaped accommodating end 51, and the opening is toward the plug-in end 41. In order to fix the plug-in end 41 and the accommodating end 51, inclined first protrusions 42 are provided on both sides of the plug-in end 41, and an inclined second protrusion is provided in the accommodating end 51. 52, the first protrusion 42 cooperates with the second protrusion 52 to fix the plug-in end 41, and the distance between the first protrusions 42 on both sides is greater than the minimum distance between the second protrusions 52, so that the plug-in end 41 can squeeze the second protrusion 52 into the accommodating end 51, and then the fixation is completed by the limiting of the first protrusion 42 and the second protrusion 52, and in order to improve the stability of the fixation of the two and avoid falling off, the first protrusion 42 and the second protrusion 52 are each provided with multiple groups, and the number of the two is the same. Specifically, the first protrusion 42 and the second protrusion 52 are each arranged in two groups up and down, and the spacing between the two groups of first protrusions 42 and the second protrusions 52 is consistent, and the two groups of first protrusions 42 and second protrusions 52 are respectively limited and fixed, thereby improving stability.

[0034] One of the main technical points of the present solution is that a support plate 6 is movably arranged between the two extension portions 3, and the distance between the support plate 6 and the arc-shaped portion 2 can be adjusted, and the space size of the enclosed accommodating cavity can be adjusted, so that cable cores 1 of various sizes can be wrapped. After the cable core 1 is inserted into the accommodating cavity, the support plate 6 can be tightened to one side of the cable core 1 through the tightening structure 7 on one side of the support plate 6, so as to support and limit the side of the cable core 1 away from the arc-shaped portion 2.

[0035] In addition, an arc-shaped groove is provided on one side of the support plate 6 close to the arc-shaped portion 2, so as to facilitate matching with the outer edge of the cable inner core 1. The support plate 6 is slidably arranged between the two extension portions 3. Specifically, sliding bars 9 are provided at the upper and lower ends of the support plate 6, and a sliding groove 10 for sliding the sliding bar 9 is provided on the inner side of the extension portion 3 in a horizontal direction. The support plate 6 adjusts the distance between itself and the arc-shaped portion 2 by sliding the sliding bar 9 along the sliding groove 10.

[0036] Specific, combined Figure 2 and Figure 3The tightening structure 7 includes two groups, which are movably connected to the first bending portion 4 and the second bending portion 5 respectively, and can tighten the upper and lower ends of the support plate 6 to ensure the balance and stability of the support of the support plate 6. In this embodiment, the tightening structure 7 includes a plurality of studs 71 ​​threadedly connected to the first bending portion 4 or the second bending portion 5, and the plurality of studs 71 ​​are arranged along the length direction of the cable inner core 1, and a plurality of accommodating holes 8 are opened on the side of the support plate 6 away from the arc portion 2 corresponding to the position of the studs 71, and the aperture of the accommodating hole 8 is larger than the diameter of the stud 71, and the cable inner core 1 is provided with a plurality of accommodating holes 8. After the core 1 is wrapped in the arc-shaped portion 2, multiple studs 71 ​​are rotated in sequence. Under the action of the thread, the stud 71 moves toward the support plate 6 until it moves into the accommodating hole 8. The stud 71 continues to be rotated until the support plate 6 and the cable inner core 1 are tightened. In order to ensure the stability of the stud 71 when moving, a mounting seat 72 is provided on the inner side of the extension portion 3. Both sections of the extension portion 3 are provided and installed on the inner side. The mounting seat 72 is located on the side of the support plate 6 away from the arc-shaped portion 2, and the stud 71 passes through the mounting seat 72 and is threadedly connected to it, thereby supporting the middle part of the stud 71.

Claims

1. A cable insulation protective cover, characterized in that: It comprises an arc-shaped portion (2) extending along the length direction of the cable inner core (1), and two ends of the arc-shaped portion (2) are connected to two extension portions (3); The two extension portions (3) are respectively connected to a first bending portion (4) and a second bending portion (5) bent inward, and the first bending portion (4) and the second bending portion (5) are plugged into each other; A support plate (6) is movably arranged between the two extension portions (3); the distance between the support plate (6) and the arc-shaped portion (2) is adjustable; and a tightening structure (7) is arranged on the side of the support plate (6) away from the arc-shaped portion (2) to support and limit the support plate (6).

2. The cable insulation protective cover according to claim 1, characterized in that: The extension portions (3) at both ends are arranged horizontally, and the first bending portion (4) and the second bending portion (5) are both perpendicular to the corresponding extension portions (3).

3. The cable insulation protective cover according to claim 1, characterized in that: The bottom end of the first bent portion (4) comprises an arrow-shaped plug-in end (41), and the direction of the arrow points toward the second bent portion (5); The upper end of the second bent portion (5) comprises a V-shaped accommodating end (51), and the opening faces the plug-in end (41), and the plug-in end (41) can be inserted into the accommodating end (51) and fixed.

4. The cable insulation protective cover according to claim 3, characterized in that: The plug end (41) has inclined first protrusions (42) on both sides, and the receiving end (51) is provided with an inclined second protrusion (52), and the first protrusion (42) and the second protrusion (52) cooperate to fix the plug end (41).

5. The cable insulation protective cover according to claim 4, characterized in that: The first protrusions (42) and the second protrusions (52) are both provided in multiple groups, and the numbers of the two groups are consistent.

6. The cable insulation protective cover according to claim 5, characterized in that: The first protrusions (42) and the second protrusions (52) are arranged in two groups up and down, and the spacing between the two groups of first protrusions (42) and second protrusions (52) is consistent.

7. The cable insulation protective cover according to claim 1, characterized in that: The tightening structure (7) comprises two groups, and is movably connected to the first bending portion (4) and the second bending portion (5) respectively.

8. The cable insulation protective cover according to claim 7, characterized in that: The tightening structure (7) comprises a plurality of studs (71) threadedly connected to the first bending portion (4) or the second bending portion (5), and the plurality of studs (71) are arranged along the length direction of the cable inner core (1); A plurality of accommodating holes (8) are provided on one side of the support plate (6) away from the arc-shaped portion (2) and corresponding to the positions of the studs (71), and the studs (71) can be inserted into the accommodating holes (8) to limit the position of the support plate (6).

9. The cable insulation protective cover according to claim 8, characterized in that: A mounting seat (72) is arranged inside the extension portion (3), and a stud (71) passes through the mounting seat (72) and is threadedly connected thereto.

10. The cable insulation protective cover according to claim 2, characterized in that: The support plate (6) is provided with sliding bars (9) at the upper and lower ends, and a sliding groove (10) for the sliding bar (9) to slide is provided in the horizontal direction on the inner side of the extension portion (3).

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