CN114421407B

CN114421407B - Overhead insulated cable

Info

Publication number: CN114421407B
Application number: CN202210052755.0A
Authority: CN
Inventors: 梁创
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-10-21
Anticipated expiration: 2042-01-18
Also published as: CN114421407A

Abstract

The invention discloses an overhead insulated cable which comprises a cable pipeline arranged underground and a plurality of cables arranged in the cable pipeline, wherein a plurality of shells are axially arranged outside the cable, air cavities with annular structures are respectively arranged in outer protective layers of the cables, air is filled in the air cavities, mounting grooves are respectively formed in two side surfaces of an opening of each shell, positioning plates are respectively arranged in the mounting grooves through spring hinges, arc-shaped plates are respectively arranged on two sides of each cable, a baffle is vertically arranged at one end of each arc-shaped plate, a floating plate is arranged in the cable pipeline, and rubber strips are respectively arranged at the positions, right opposite to the openings of the shells, of the floating plates. The invention has simple structure, can seal the opening at the lower end of the shell by the extrusion of the floating plate and the rubber layer, ensures the safety of the cable, can intercept the rubber strip inserted into the shell by the popped positioning plate once the outer protective layer of the cable is damaged, and can seal the opening of the shell by the rubber strip and the positioning plate, thereby ensuring the normal use of the damaged cable.

Description

Overhead insulated cable

Technical Field

The invention relates to the technical field of cables, in particular to an overhead insulated cable.

Background

Under the industrial environment, generally all can have a large amount of cables, such as control cable, signal cable, supply cable and so on, this type of cable is generally installed in municipal underground cable conduit more, but lay the cable in underground cable conduit and do not have protection architecture, its structure is comparatively simple, and because cable conduit passes through cable shaft and external intercommunication, when raining in the external world, a large amount of external rainwater can get into in the cable conduit along the cable shaft, the rainwater of entering can submerge inside cable, the long-time contact of water and cable causes the life reduction of cable outer protective layer easily, and debris that carry in the rainwater can take place the striking with the cable, further increase the probability that cable outer protective layer damaged, and in case after cable outer protective layer damages, the rainwater of entering will contact with the cable of damage, cause the electric current to pass along the rainwater of inside, cause the maintenance to whole municipal drainage system.

Disclosure of Invention

The invention aims to solve the technical problem of providing an overhead insulated cable which can completely seal a shell after water is accumulated, can independently seal a cable damaged by an outer protection layer and ensures the use safety.

The invention is realized by the following technical scheme: the utility model provides an overhead insulated cable, including installing in underground cable duct and setting up in the inside many cables of cable duct, a plurality of casings are installed to the outside axial of cable, the opening of casing all sets up down, the outer protective layer the inside of cable all is equipped with loop configuration's air cavity, it has gas all to fill in the air cavity, all be equipped with the mounting groove on casing open-ended both sides face, all install the locating plate through spring hinge in the mounting groove, all install the locating piece that is used for supporting the locating plate on the bottom surface of mounting groove, the arc is all installed to the both sides of cable, the baffle is all installed perpendicularly to the one end of arc, the baffle lower extreme all extends to the opening the place ahead of mounting groove, and all offset with the locating plate, the inside kickboard that is equipped with of cable duct, the kickboard all is equipped with the rubber strip to the opening part of casing, all install latch mechanism between rubber strip and the kickboard.

As preferred technical scheme, the clamping mechanism all includes the fixed plate, many stands, polylith embedding piece and fixture block, the fixed plate all sets up on the bottom surface of rubber strip, the width of fixed plate all is less than the width of rubber strip, the equal embedded installation of embedding piece is on the bottom surface of rubber strip, all be equipped with the draw-in groove on the bottom surface of embedding piece, the fixture block is all installed on the top surface of fixed plate, fixture block one end all inserts in the draw-in groove, the stand is all installed between fixed plate and kickboard, install the rubber sack on the bottom surface of kickboard.

As preferred technical scheme, the width of rubber strip all is less than casing open-ended width, and the distance between rubber strip and the shells inner wall all is greater than the thickness of baffle, and the length of rubber strip and locating plate all is the same with the length of casing, and the both sides of rubber strip all form the water conservancy diversion portion of slope.

As preferred technical scheme, the cross-section of locating plate all is the triangle-shaped structure setting, and the top surface of locating piece all inclines to set up.

As a preferred technical scheme, the rubber layers are arranged on the end surfaces of the openings of the shell.

As preferred technical scheme, all install the connecting plate between casing and the casing, all be equipped with a plurality of locating holes on the connecting plate of both sides, the kickboard is just all installed the locating lever to locating hole department, and locating lever one end all passes the locating hole setting, all installs the spacing ring on the locating lever, and the bottom surface of spacing ring all offsets with the top surface of connecting plate, all installs the mount between outermost side casing and the cable duct.

As the preferred technical scheme, a plurality of springs are arranged in the air cavities in an annular structure and are in a stretching state.

As the preferred technical scheme, the U-shaped shell is installed outside the baffle, a positioning opening of a rectangular structure is formed between the U-shaped shell and the inner wall of the shell, and the size of the cross section of the positioning opening is matched with that of the baffle.

As the preferred technical scheme, the top surface inside the shell is provided with the double-sided adhesive layer, and the other side surface of the double-sided adhesive layer is fixedly adhered to the outer wall surface of the cable.

As preferred technical scheme, the both ends of casing all are the setting of hemispherical structure, all install the telescope tube between the axial casing, and the cable that is located the casing centre all passes the telescope tube setting.

The invention has the beneficial effects that: the invention has simple structure, the entering accumulated water can drive the floating plate to move upwards, the opening at the lower end of the shell can be sealed by the extrusion of the floating plate and the rubber layer, the entering of rainwater is avoided, the impact of sundries in the rainwater and the outer protective layer of the cable is also avoided, the safety of the cable is ensured, and in the floating process, once the outer protective layer of the cable is damaged, the rubber strip inserted into the shell can be intercepted by the popped positioning plate, the opening of the shell can be sealed by the rubber strip and the positioning plate, so that the shell is still in a sealing state after the floating plate descends, the safety of the damaged part of the cable is ensured, and the rubber strip is independently arranged, thereby not influencing the moving of the floating plate and the resealing of other shells.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic view of the mounting structure between the housings according to the present invention;

fig. 4 is a structural schematic diagram of the damaged cable of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, 2, 3, and 4, the overhead insulated cable of the present invention includes a cable duct 1 installed underground and a plurality of cables 2 disposed inside the cable duct, a plurality of housings 3 are axially installed outside the cables 2, openings of the housings 3 are all disposed downward, air cavities 4 of annular structures are disposed inside outer protection layers of the cables 2, air is filled in the air cavities 4, mounting grooves 15 are disposed on both sides of the openings of the housings 3, positioning plates 14 are mounted in the mounting grooves 15 through spring hinges, positioning blocks 16 for abutting against the positioning plates are mounted on bottom surfaces of the mounting grooves 15, arc plates 22 are mounted on both sides of the cables 2, baffles 13 are vertically mounted at one ends of the arc plates 22, lower ends of the baffles 13 extend to the front of the openings of the mounting grooves 15 and abut against the positioning plates 14, floating plates 11 are disposed inside the cable duct 1, rubber strips 7 are disposed at positions of the openings of the housings of the floating plates 11, and clamping mechanisms are disposed between the rubber strips 7 and the floating plates 11.

In this embodiment, latch mechanism all includes fixed plate 8, many stands 9, polylith embedding piece 12 and fixture block, fixed plate 8 all sets up on the bottom surface of rubber strip 7, the width of fixed plate 8 all is less than the width of rubber strip 7, embedding 12 all embedded the installing on the bottom surface of rubber strip 7 of piece, all be equipped with the draw-in groove on embedding 12's the bottom surface, the fixture block is all installed on fixed plate 8's top surface, fixture block one end all inserts in the draw-in groove, stand 9 all installs between fixed plate 8 and kickboard 11, install rubber bag 21 on kickboard 11's the bottom surface, buoyancy has been increased through the rubber bag, the come-up that makes the kickboard ability quick.

In this embodiment, the width of the rubber strip 7 is smaller than the width of the opening of the housing 3, the distance between the rubber strip 7 and the inner wall of the housing 3 is greater than the thickness of the baffle 13, the lengths of the rubber strip 7 and the positioning plate 14 are the same as the length of the housing 3, the two sides of the rubber strip 7 form inclined flow guide portions, when the rubber strip is inserted into the housing, the flow guide portions contact with the opened positioning plate, so that the positioning plate is lifted upwards along the flow guide portions, the rubber strip can smoothly pass through the blocking of the positioning plate, wherein the width of the rubber strip is smaller than that of the housing, and therefore, when the positioning plate is not opened, the rubber strip can be moved out of the housing along the positioning plate, and excessive friction is avoided.

In this embodiment, the positioning plates 14 are all arranged in a triangular structure in cross section, and the top surfaces of the positioning blocks 16 are all arranged in an inclined manner; the rubber layers 23 are mounted on the opened end surfaces of the shell 3.

In this embodiment, all install connecting plate 10 between casing 3 and the casing 3, all be equipped with a plurality of locating holes on the connecting plate 10 of both sides, kickboard 11 just all installs locating lever 5 to locating hole department, and locating lever 5 one end all passes the locating hole setting, all installs spacing ring 6 on locating lever 5, and the bottom surface of spacing ring 6 all offsets with the top surface of connecting plate 10, all installs the mount between outside casing 3 and cable duct 1.

In this embodiment, a plurality of springs are installed in the air chamber 4 in an annular structure, the springs are all in a stretching state, and the outer protection layer can be rapidly pulled inwards through resilience energy of the springs.

In this embodiment, the outside of the baffle 13 is provided with the U-shaped shell 17, a positioning opening with a rectangular structure is formed between the U-shaped shell 17 and the inner wall of the housing 3, the size of the cross section of the positioning opening is matched with that of the baffle 13, and the baffle is limited by the positioning opening and can only move up and down along the positioning opening.

In this embodiment, all install double-sided adhesive layer 19 on the inside top surface of casing 3, double-sided adhesive layer 19's another side all is fixed with the outer wall adhesion of cable 2, fixes the cable for the cable has an ascending effect after the damage.

In this embodiment, the both ends of casing 3 all are the hemispherical structure setting, all install flexible cover 18 between the axial casing 3, and the cable that is located the middle of casing 3 all passes flexible cover 18 setting, can seal the cable through flexible cover, does not also influence the bending of cable.

After the outer protective layer of the cable is damaged, the air cavity is communicated with the outside, so that the air in the air cavity is discharged outwards along the damaged part, after the filling of the air is lost, the outer protective layer is pulled inwards through the resilience energy of the spring, so that the outer protective layer is shrunk inwards, wherein the top surface of the cable is adhered and fixed on the shell, so that the outer protective layer generally shrinks from the lower part, the arc-shaped plate and the baffle plate are pulled upwards by the outer protective layer in the shrinking process, and after the baffle plate is moved away from the front part of the mounting groove, the positioning plate is popped outwards through the torsional energy of the spring hinge until the positioning plate is abutted against the positioning block;

after water is accumulated in the cable pipeline, the floating plate and the rubber bag can float upwards along the positioning hole, the floating plate moves to drive the rubber strip until the rubber strip is inserted into the shell, the floating plate can abut against the opening end face of the shell, and a gap between the shell and the floating plate is sealed through the rubber layer, so that the cable in the shell is effectively sealed, the cable is prevented from contacting with external rainwater, sundries in the rainwater are prevented from colliding with an outer protective layer of the cable, and the safety of the cable is ensured; and when the rubber strip inserts in the casing, in case the locating plate that inserts in the casing is in the open mode, the rubber strip can jack-up locating plate earlier, move to the locating plate top back at the rubber strip, along with disappearance of ponding, the kickboard can the lapse, but there is the rubber strip to receive blockking of below locating plate, make the rubber strip can't follow the casing and shift out, and the kickboard can be extracted the fixture block from the draw-in groove through self weight, make this rubber strip stay in the opening of casing all the time, through the rubber strip, locating plate and casing can be sealed with the cable that damages, do not influence the normal use of damage cable, remaining rubber strip is then along with the reracking normal position of kickboard, consequently do not influence the removal of kickboard and to the resealing of other casings.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. An overhead insulated cable, its characterized in that: the cable comprises a cable pipeline (1) arranged underground and a plurality of cables (2) arranged inside the cable pipeline, a plurality of shells (3) are axially arranged outside the cables (2), openings of the shells (3) are arranged downwards, air cavities (4) of annular structures are arranged inside outer protection layers of the cables (2), air is filled in the air cavities (4), two side faces of the openings of the shells (3) are provided with mounting grooves (15), positioning plates (14) are arranged in the mounting grooves (15) through spring hinges, positioning blocks (16) used for supporting the positioning plates are arranged on the bottom surfaces of the mounting grooves (15), arc plates (22) are arranged on two sides of the cables (2), baffle plates (13) are vertically arranged at one ends of the arc plates (22), the lower ends of the baffle plates (13) extend to the front of the openings of the mounting grooves (15) and abut against the positioning plates (14), floating plates (11) are arranged inside the cable pipeline (1), rubber strips (7) are arranged at the openings of the shells right above the floating plates (11), and clamping mechanisms are arranged between the rubber strips (7) and the floating plates (11);

a U-shaped shell (17) is arranged outside each baffle (13), a positioning opening with a rectangular structure is formed between the U-shaped shell (17) and the inner wall of the shell (3), and the size of the section of the positioning opening is matched with that of the baffle (13);

the top surface inside the shell (3) is provided with a double-sided adhesive layer (19), and the other side surface of the double-sided adhesive layer (19) is adhered and fixed with the outer wall surface of the cable (2).

2. The overhead insulated cable of claim 1, wherein: clamping mechanism all includes fixed plate (8), many stands (9), polylith embedding piece (12) and fixture block, fixed plate (8) all set up on the bottom surface of rubber strip (7), the width of fixed plate (8) all is less than the width of rubber strip (7), embedding piece (12) are all embedded to be installed on the bottom surface of rubber strip (7), all be equipped with the draw-in groove on the bottom surface of embedding piece (12), the fixture block is all installed on the top surface of fixed plate (8), fixture block one end all inserts in the draw-in groove, stand (9) are all installed between fixed plate (8) and kickboard (11), install rubber sack (21) on the bottom surface of kickboard (11).

3. The overhead insulated cable of claim 1, wherein: the width of rubber strip (7) all is less than casing (3) open-ended width, and the distance between rubber strip (7) and casing (3) inner wall all is greater than the thickness of baffle (13), and the length of rubber strip (7) and locating plate (14) all is the same with the length of casing (3), and the guide portion of slope all is formed to the both sides of rubber strip (7).

4. The overhead insulated cable of claim 1, wherein: the cross sections of the positioning plates (14) are all arranged in a triangular structure, and the top surfaces of the positioning blocks (16) are all obliquely arranged.

5. The overhead insulated cable of claim 1, wherein: the rubber layers (23) are mounted on the end faces of the openings of the shell (3).

6. The overhead insulated cable of claim 1, wherein: all install connecting plate (10) between casing (3) and casing (3), all be equipped with a plurality of locating holes on connecting plate (10) of both sides, positioning lever (5) are all installed just to locating hole department in kickboard (11), positioning lever (5) one end all passes the locating hole setting, all install spacing ring (6) on positioning lever (5), the bottom surface of spacing ring (6) all offsets with the top surface of connecting plate (10), all install the mount between outside casing (3) and cable duct (1).

7. The overhead insulated cable of claim 1, wherein: a plurality of springs are arranged in the air cavity (4) in an annular structure and are all in a stretching state.

8. The overhead insulated cable of claim 1, wherein: the both ends of casing (3) all are the hemispherical structure setting, all install flexible cover (18) between axial casing (3), and the cable that is located casing (3) centre all passes flexible cover (18) and sets up.