Cable sheath

Abstract

The utility model discloses a cable sheath which comprises an outer sheath, the outer sheath is formed by butt joint of two first connecting pieces of semicircular structures, and the first outer sheath is provided with a fastening hoop; two groups of separation structures are further included, the two groups of separation structures are arranged at the first end and the second end respectively, each separation structure comprises a plurality of plum blossom petals which are uniformly arranged in the circumferential direction, and the adjacent plum blossom petals are connected through clamping assemblies; a fastening structure is arranged on the separation structure and is used for enhancing the connection between the plum blossom petals, and the separation structure is connected with the outer sheath through a second connecting assembly; the adjacent plum blossom petals can be connected in a clamped mode through the clamping assemblies so that connection can be fastened, the fastening performance of the plum blossom petals can be enhanced through the fastening structures, the separation structures and the outer sheath can be connected and fastened through the second connecting assemblies, and the two first connecting pieces of the outer sheath can be connected and fastened through the fastening hoops; therefore, the overall fastening performance of the device is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cable accessories, and particularly relates to a cable sheath. Background Art

[0002] Cables, including power cables for high voltage, medium voltage or low voltage, usually include one or more cores for power transmission media, and the cores are surrounded by a sheath composed of one or more layers.

[0003] The sheath must meet many performance requirements. When the cable is installed in a narrow space, attention should be paid to the flexibility of the sheath; on the other hand, cables installed outdoors need to be well protected from friction and sudden impacts during installation, so the abrasion resistance of the sheath needs to be ensured.

[0004] Although the existing cable sheaths can achieve the separated laying and fixed anti-abrasion of multiple cables, the overall fastening property needs to be improved. Therefore, we propose a cable sheath. Summary of the Invention

[0005] In view of the above defects or deficiencies in the prior art, it is desirable to provide a cable sheath.

[0006] In a first aspect, the present application provides a cable sheath, including:

[0007] An outer sheath, the outer sheath is a cylindrical structure, which is composed of two butt-jointed semi-circular structures of first connectors, and the two ends of the outer sheath are respectively a first end and a second end; a fastening hoop is provided on the outer wall of the second end for strengthening the connection fastening property between the two first connectors;

[0008] Two sets of separation structures, the two sets of separation structures are respectively located at the first end and the second end, and the two sets of separation structures are connected by a first connection component; the separation structure includes a plurality of plum blossom petals arranged circumferentially and evenly, and adjacent plum blossom petals are connected by a clamping component;

[0009] The separation structure is connected to the outer sheath through a second connection component;

[0010] A fastening structure, the fastening structure is arranged on the separation structure for strengthening the connection between adjacent plum blossom petals;

[0011] A first wire cavity is formed between the plum blossom petals and the inner wall of the outer sheath, and a plurality of the plum blossom petals are sequentially connected along the circumferential direction of the outer sheath to form a second wire cavity inside, and both the first wire cavity and the second wire cavity are used for accommodating cables to pass through.

[0012] According to the technical solution provided by the embodiment of the present application, connection grooves are radially formed on both side walls of the plum blossom petals along the outer sheath, and the connection grooves of adjacent plum blossom petals are butted to form installation grooves. The installation grooves are evenly distributed along the circumferential direction of the outer sheath, and one end of the installation groove communicating with the second wire cavity forms a regular polygon counterbore.

[0013] According to the technical solution provided by the embodiment of the present application, the first connection component includes a plurality of support rods. The plurality of support rods are evenly arranged in the circumferential direction, and the support rods extend along the axial direction of the outer sheath. Both ends of the support rods have installation parts. Through holes are axially formed through the plum blossom petals along the outer sheath. The installation parts at both ends of the support rods respectively penetrate through the through holes of the plum blossom petals of two sets of partition structures and are tightly connected through installation pieces.

[0014] According to the technical solution provided by the embodiment of the present application, wrench grooves are arranged on the support rods.

[0015] According to the technical solution provided by the embodiment of the present application, the fastening structure includes two sets of fastening components. The two sets of fastening components are symmetrically arranged at the top and bottom of the partition structure respectively. The fastening component includes a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate jointly form an annular structure, and the length of the first connecting plate is less than that of the second connecting plate. A plurality of fastening holes are formed in the second connecting plate along its length direction. The number of fastening holes corresponds to the number of support rods.

[0016] The first connecting plate is arranged on one of the plum blossom petals and is tightly connected to the plum blossom petal through a second connecting piece.

[0017] According to the technical solution provided by the embodiment of the present application, an isolation ring is further included. The isolation ring is arranged in the second wire cavity, and a first through hole is arranged on the isolation ring corresponding to the regular polygon counterbore.

[0018] An inner sheath is further included. The inner sheath is arranged in the isolation ring at the first end. A second through hole is arranged on the inner sheath corresponding to the first through hole.

[0019] According to the technical solution provided by the embodiment of the present application, nylon pins are arranged in the installation grooves on both sides of the plum blossom petal provided with the first connecting plate. One end of the nylon pin sequentially penetrates through the second through hole and the first through hole corresponding to the installation groove and extends into the installation groove.

[0020] The second connection component includes a plurality of third connection pieces. The third connection pieces sequentially penetrate through the second through hole, the first through hole and the installation groove and extend to the outside of the installation groove.

[0021] A plurality of connection holes are provided on the outer sheath corresponding to the plurality of installation grooves, and one end of the third connecting member located outside the installation groove penetrates through the connection holes and is fixedly connected through a mounting member.

[0022] According to the technical solution provided by the embodiment of the present application, the clamping assembly includes a wedge block and a wedge groove that can be clamped with each other. The wedge block and the wedge groove are respectively arranged on the two side walls of the plum blossom petals in the circumferential direction of the outer sheath, and the wedge block of the plum blossom petals is clamped in the wedge groove of the adjacent plum blossom petals.

[0023] According to the technical solution provided by the embodiment of the present application, a cushion block is arranged in the first line cavity. The cushion block is of a V-shaped structure and is adapted to the plum blossom petals. A first anti-slip strip is arranged on the plum blossom petals to increase the friction with the cushion block, and a second anti-slip strip is arranged on the cushion block to increase the friction with the cable.

[0024] According to the technical solution provided by the embodiment of the present application, the isolation ring is of an open-loop structure and is made of rubber.

[0025] In summary, the present technical solution specifically discloses a cable sheath, including an outer sheath. The outer sheath is formed by butting two first connecting members of a semi-circular structure. The two ends of the outer sheath are respectively a first end and a second end. The connection tightness between the two first connecting members can be strengthened by arranging a fastening hoop at the second end. It also includes two sets of partition structures, which are respectively arranged at the first end and the second end. The two sets of partition structures are connected through a first connection component. The partition structure includes a plurality of plum blossom petals evenly arranged in the circumferential direction. The adjacent plum blossom petals are connected through a clamping assembly, so that the plurality of plum blossom petals of the partition structure can be tightly connected, increasing the tightness. A fastening structure is arranged on the partition structure to strengthen the connection between the plum blossom petals, and the partition structure is connected to the outer sheath through a second connection component.

[0026] Through the clamping assembly, the adjacent plum blossom petals can be clamped, making the connection tight. Through the fastening structure, the tightness of the plum blossom petals can be strengthened. Through the second connection component, the connection between the partition structure and the outer sheath can be tightened. Through the fastening hoop, the connection between the two first connecting members of the outer sheath can be ensured to be tight, thereby increasing the overall tightness of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0028] Figure 1 It is a schematic diagram of a cable sheath.

[0029] Figure 2It is a schematic diagram of the inside of a cable sheath.

[0030] Figure 3 It is a schematic diagram of a plum blossom petal structure.

[0031] Figure 4 It is a schematic diagram of a partition structure.

[0032] Figure 5 It is a schematic diagram of an inner sheath.

[0033] Figure 6 It is a schematic diagram of a spacer ring.

[0034] Figure 7 It is a schematic diagram of a fastening assembly.

[0035] Figure 8 It is a schematic diagram of a connection hole.

[0036] Reference numerals in the figure: 1. Outer sheath; 2. Plum blossom petal; 3. Connection groove; 4. Regular polygon counterbore; 5. Support rod; 6. Through hole; 7. Wrench groove; 8. First connecting plate; 9. Second connecting plate; 10. Fastening hole; 11. Spacer ring; 12. First through hole; 13. Inner sheath; 14. Second through hole; 15. Nylon pin; 16. Third connecting piece; 17. Connection hole; 18. Wedge block; 19. Wedge groove; 20. Pad; 21. First anti-slip strip; 22. Second anti-slip strip; 23. Lapping part; 24. Washer; 25. Fastening hoop. Detailed implementation manners

[0037] The following further elaborates on the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant invention and do not limit the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings.

[0038] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will elaborate on the present application in detail with reference to the drawings and embodiments.

[0039] Embodiment 1

[0040] Please refer to Figure 1 A schematic diagram of a cable sheath shown, a cable sheath includes an outer sheath 1. The outer sheath 1 is a cylindrical structure and includes two first connecting pieces. The first connecting pieces are semi-circular structures. The two first connecting pieces are butted against each other so as to form the outer sheath 1. The two ends of the outer sheath 1 are respectively a first end and a second end. Both ends of the first connecting piece close to the first end and the second end are connected by bolts and nuts, so as to connect the two first connecting pieces to form the outer sheath 1.

[0041] As Figures 2 to 4As shown, there are two sets of separation structures, which are respectively arranged at the first end and the second end;

[0042] Specifically, the separation structure includes a number of plum blossom petals 2 arranged circumferentially and evenly. The plum blossom petals 2 are of V-shaped structure, with their openings facing the outer sheath 1. A first wire cavity capable of accommodating the cable is formed between the plum blossom petals 2 and the outer sheath 1. The number of plum blossom petals 2 are sequentially connected along the circumference of the outer sheath 1 to form a second wire cavity inside capable of accommodating the cable;

[0043] A spacer block 20 is arranged in the first wire cavity. The spacer block 20 is of V-shaped structure and is adapted to the opening of the plum blossom petal 2. The plum blossom petal 2 is provided with a first anti-slip strip 21 for increasing the friction with the spacer block 20. The spacer block 20 is provided with a second anti-slip strip 22 for increasing the friction with the cable. Moreover, lap joints 23 are arranged at the top and bottom of the spacer block 20 for lapping the top and bottom of the plum blossom petal 2, which can make the connection between the plum blossom petal 2 and the spacer block 20 firm;

[0044] It should be noted that the spacer block 20 has various specifications, and different specifications of spacer blocks 20 can be selected to prevent loosening and clamping for laying cables of different specifications and quantities.

[0045] Adjacent plum blossom petals 2 are connected by a clamping component;

[0046] Specifically, the clamping component includes a wedge block 18 and a wedge groove 19 that can be clamped with each other. The wedge block 18 and the wedge groove 19 are respectively arranged on the two side walls of the plum blossom petal 2. The wedge block 18 of the plum blossom petal 2 is clamped in the wedge groove 19 of the adjacent plum blossom petal 2, so that a number of plum blossom petals 2 arranged circumferentially and evenly can form a separation structure.

[0047] A fastening structure is arranged on the separation structure for firmly connecting a number of plum blossom petals 2 of the separation structure;

[0048] Specifically, the fastening structure includes two sets of fastening components, which are respectively arranged at the top and bottom of the separation structure. The fastening component includes a first connecting plate 8 and a second connecting plate 9 (as Figure 7 ), both the first connecting plate 8 and the second connecting plate 9 are arc-shaped plates, and the length of the first connecting plate 8 is less than the length of the second connecting plate 9. The first connecting plate 8 and the second connecting plate 9 together form an annular structure. Six fastening holes 10 are opened along the length direction of the second connecting plate 9;

[0049] Furthermore, the first connecting plate 8 is arranged on one of the plum blossom petals 2 and is firmly connected to the plum blossom petal 2 through a second connecting member. A fastening hole 10 is penetrated through the first connecting plate 8, and the second connecting member penetrates through the fastening hole of the first connecting plate 8 and extends into the plum blossom petal 2; Optionally, the type of the second connecting member is, for example: a bolt;

[0050] It should be noted that both ends of the first connecting plate 8 extend to the outside of the plum blossom petals 2 connected thereto, so that the first connecting plates 8 at the top and bottom of the plum blossom petals 2 can clamp the adjacent plum blossom petals 2 under the action of the second connecting member during installation, thereby increasing the fastening of the installation of the plum blossom petals 2.

[0051] The two sets of partition structures are connected by a first connecting component;

[0052] Specifically, the first connecting component includes six support rods 5. The six support rods 5 are evenly arranged in the circumferential direction and correspond to the six fastening holes 10 of the second connecting plate 9. The length direction of the support rods 5 extends along the axis of the outer sheath 1. Both ends of the support rods 5 have mounting parts. Through holes 6 are axially formed through the plum blossom petals 2 along the axis of the outer sheath 1. The mounting parts at both ends of the support rods 5 respectively penetrate the through holes 6 of the plum blossom petals 2 of the two sets of partition structures and are fixedly connected by mounting pieces; the type of the mounting piece can be selected as a nut;

[0053] It should be noted that the mounting part penetrates the through hole 6 of the plum blossom petal 2 and the fastening hole 10 of the second connecting plate 9 at the top and bottom of the plum blossom petal 2, and then is locked by a mounting piece;

[0054] It should be noted that a wrench groove 7 is provided on the support rod 5 for facilitating the connection and installation of the mounting piece.

[0055] The partition structure is connected to the outer sheath 1 through a second connecting component;

[0056] Specifically, connection grooves 3 extending along the radial direction of the outer sheath 1 are formed on both side walls of the plum blossom petal 2. The connection grooves 3 of adjacent plum blossom petals 2 are butted to form an installation groove, and a regular polygon counterbore 4 is formed at one end of the installation groove communicating with the second wire cavity. The regular polygon counterbore 4 can be selected as a regular hexagon counterbore;

[0057] Furthermore, the second connecting component includes a plurality of third connecting pieces 16. One end of the third connecting piece 16 has a mounting head, and the other end has a mounting part. A plurality of connection holes 17 are formed on the circumferential outer walls of the first end and the second end of the outer sheath 1. The mounting part sequentially penetrates the regular polygon counterbore 4, the installation groove and the connection hole 17 and extends to the outside of the outer sheath 1 and is fixedly connected by a mounting piece. The mounting head is located in the regular polygon counterbore 4;

[0058] Among them, the connection hole 17 can be selected as a long strip hole, the third connecting piece 16 can be selected as a regular hexagon bolt with a slotted head, the mounting head can be a regular hexagon structure, and the mounting piece can be selected as a nut;

[0059] It should be noted that a washer 24 (such as Figure 8 ) is provided on the mounting part, which is located between the outer sheath 1 and the mounting piece for increasing the pre-tightening force. The washer 24 can be a large flat washer;

[0060] It should be noted that nylon pins 15 are provided in the mounting grooves on both sides of the plum blossom petal 2 provided with the first connecting plate 8. One end of the nylon pin 15 penetrates through the regular polygon counterbore and the mounting groove. Thus, the plum blossom petal 2 can be conveniently disassembled through the nylon pin 15, and the whole device can be quickly disassembled.

[0061] As Figure 6 shown, it further includes isolation rings 11. There are two isolation rings 11, which are respectively arranged in the second wire cavities of the two groups of partition structures and abut against the plum blossom petal 2. A first through hole 12 corresponding to the regular polygon counterbore 4 is provided on the isolation ring 11 for accommodating the third connecting member 16 and the nylon pin 15 to penetrate through;

[0062] It should be noted that the isolation ring 11 is made of rubber and is an open-ring structure. After being installed in the second wire cavity, it can be a closed structure. The open-ring structure of the isolation ring 11 can have a certain amount of deformation during installation, so as to facilitate the installation of the isolation ring 11.

[0063] As Figure 5 shown, it further includes an inner sheath 13. The inner sheath 13 is arranged inside the isolation ring 11 at the first end. The inner sheath 13 is formed by butting two semi-circular structures and is connected by bolts;

[0064] A second through hole 14 corresponding to the first through hole 12 is provided on the inner sheath 13 for accommodating the third connecting member 16 and the nylon pin 15 to penetrate through.

[0065] A fastening hoop 25 is provided at the second end of the outer sheath 1 for strengthening the fastening degree of the outer sheath 1. Optionally, the fastening hoop 25 can be a hose clamp.

[0066] It should be noted that the edges of the device in contact with the cable are all chamfered, which can reduce the damage to the cable.

[0067] Working principle: First, the plum blossom petals 2 are successively clamped through the wedge blocks 18 and the wedge grooves 19 to form two sets of partition structures. At this time, the position of the plum blossom petal 2 provided with the first connecting plate 8 needs to be left so that the partition structure has a notch. Then, the second connecting plate 9 is installed at the top and bottom of the partition structure with the notch, and the two sets of partition structures with the notch are connected through the support rods 5. After using a wrench to hold the wrench groove 7, the connecting parts of the installation parts are connected. The cables of the second wire cavity are placed through the notch of the partition structure, and then the isolation ring 11 is installed, and the first through hole 12 of the isolation ring 11 corresponds to the installation groove of the partition structure. Then, the inner sheath 13 is installed on the isolation ring 11 at the first end, so that the second through hole 14 of the inner sheath 13 corresponds to the first through hole 12, and bolts are used to fasten the two semi-circular structures of the inner sheath 13. The cables in the second wire cavity can be fastened with cable ties. Then, the last plum blossom petal 2 is installed at the notch of the partition structure, and the first connecting plate 8 is installed on this plum blossom petal 2 through the second connecting part. Subsequently, the nylon pins 15 are installed in the installation grooves on both sides of this plum blossom petal 2, and the third connecting part 16 is installed in the installation grooves. Then, pads 20 of different specifications are selected according to the different specifications of the cables and installed on the plum blossom petal 2, and cables are placed in the first wire cavity. Then, the outer sheath 1 is installed, so that the installation part of the third connecting part 16 penetrates through the connecting hole 17 of the outer sheath 1 and extends to the outside of the outer sheath 1. After installing the washer 24, the installation parts are used for fastening connection. Then, bolts and nuts are used to connect the first connecting parts of the two semi-circular structures to form the outer sheath 1. Finally, the fastening hoop 25 is installed at the second end of the outer sheath 1;

[0068] Through the fastening components at the top and bottom of the partition structure, the fastening degree between several plum blossom petals 2 of the partition structure can be increased, and through the design of the wrench groove 7 of the support rod 5, the fastening connection of the installation parts at both ends of the support rod 5 and the fastening hoop 25, the fastening property of the device is further increased.

[0069] The above description is only the preferred embodiment of the present application and the description of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A cable sheath, characterized in that: include: An outer sheath (1), the outer sheath (1) is a cylindrical structure, comprising two first connecting pieces of a butt-jointed semicircular structure, the two ends of the outer sheath (1) being a first end and a second end respectively; a fastening hoop (25) is provided on the outer wall of the second end for strengthening the connection fastness between the two first connecting pieces; Two groups of partition structures, the two groups of partition structures are respectively located at the first end and the second end, and the two groups of partition structures are connected by a first connecting component; the partition structure comprises a plurality of plum petals (2) uniformly arranged in an annular direction, and adjacent plum petals (2) are connected by a snap-fit ​​component; The partition structure is connected to the outer sheath (1) via a second connecting component; A fastening structure, the fastening structure being arranged on the separation structure and being used to strengthen the connection between adjacent plum petals (2); A first wire cavity is formed between the plum petals (2) and the inner wall of the outer sheath (1), and a plurality of the plum petals (2) are sequentially connected along the circumference of the outer sheath (1) to form a second wire cavity inside thereof. Both the first wire cavity and the second wire cavity are used to accommodate the passage of cables.

2. A cable sheath according to claim 1, characterized in that: The two side walls of the plum petals (2) are provided with connecting grooves (3) along the radial direction of the outer sheath (1), and the connecting grooves (3) of adjacent plum petals (2) are butted together to form mounting grooves, the mounting grooves are evenly distributed along the circumference of the outer sheath (1), and the mounting grooves are connected to one end of the second line cavity to form a regular polygonal countersunk hole (4).

3. A cable sheath according to claim 2, characterized in that: The first connecting component comprises a plurality of support rods (5), the plurality of support rods (5) are evenly arranged in the circumferential direction, and the support rods (5) extend axially along the outer sheath (1), both ends of the support rods (5) have mounting portions, and through holes (6) are provided on the plum petals (2) along the axial direction of the outer sheath (1), and the mounting portions at both ends of the support rods (5) respectively penetrate the through holes (6) of the plum petals (2) of the two groups of partition structures and are fastened and connected by mounting parts.

4. A cable sheath according to claim 3, characterized in that: The support rod (5) is provided with a wrench groove (7).

5. A cable sheath according to claim 4, characterized in that: The fastening structure comprises two groups of fastening components, the two groups of fastening components are symmetrically arranged at the top and bottom of the partition structure respectively, the fastening components comprise a first connecting plate (8) and a second connecting plate (9), the first connecting plate (8) and the second connecting plate (9) together form an annular structure, and the length of the first connecting plate (8) is smaller than that of the second connecting plate (9), and the second connecting plate (9) is provided with a plurality of fastening holes (10) along its length direction, and the number of the fastening holes (10) corresponds to the number of the support rods (5); The first connecting plate (8) is arranged on one of the plum petals (2) and is fastened to the plum petal (2) via a second connecting member.

6. A cable sheath according to claim 5, characterized in that: It also comprises an isolation ring (11), the isolation ring (11) being arranged in the second line cavity, and the isolation ring (11) being provided with a first through hole (12) corresponding to the regular polygonal countersunk hole (4); It also comprises an inner sheath (13), wherein the inner sheath (13) is arranged inside the isolation ring (11) located at the first end, and a second through hole (14) is arranged on the inner sheath (13) corresponding to the first through hole (12).

7. A cable sheath according to claim 6, characterized in that: Nylon plugs (15) are arranged in the installation grooves on both sides of the plum petal (2) provided with the first connecting plate (8), and one end of the nylon plug (15) sequentially penetrates the second through hole (14) and the first through hole (12) corresponding to the installation groove and extends into the installation groove; The second connecting assembly comprises a plurality of third connecting members (16), wherein the third connecting members (16) sequentially penetrate the second through hole (14), the first through hole (12) and the mounting groove and extend to the outside of the mounting groove; The outer sheath (1) is provided with a plurality of connection holes (17) corresponding to the plurality of installation slots, and one end of the third connection member (16) located outside the installation slot passes through the connection hole (17) and is fastened and connected via the installation member.

8. A cable sheath according to claim 7, characterized in that: The clamping assembly comprises a wedge block (18) and a wedge groove (19) that can be clamped together. The wedge block (18) and the wedge groove (19) are respectively arranged on two side walls of the plum petal (2) in the circumferential direction of the outer sheath (1). The wedge block (18) of the plum petal (2) is clamped in the wedge groove (19) of the adjacent plum petal (2).

9. A cable sheath according to claim 8, characterized in that: A cushion block (20) is arranged in the first wire cavity. The cushion block (20) is a V-shaped structure, which is compatible with the plum petals (2). The plum petals (2) are provided with a first anti-slip strip (21) for increasing the friction between the cushion block (20). The cushion block (20) is provided with a second anti-slip strip (22) for increasing the friction between the cable.

10. A cable sheath according to claim 9, characterized in that: The isolation ring (11) is an open-ring structure, and the isolation ring (11) is made of rubber material.

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