CN213815630U

CN213815630U - 35kV high strength prevents icing aerial insulated cable

Info

Publication number: CN213815630U
Application number: CN202022816355.1U
Authority: CN
Inventors: 杨秋生
Original assignee: Tianjin Huanli Construction And Installation Co ltd
Current assignee: Tianjin Huanli Construction And Installation Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-07-27
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to a cable equipment field just discloses a 35kV high strength prevents icing aerial insulated cable, including outer protective sheath, outer protective sheath is equilateral triangle's piece for the cross section, runs through on the left and right sides face of outer protective sheath and has seted up the packing chamber, it is the triangle-shaped through-hole to fill the chamber, the fixed welding in upper end of outer protective sheath has the fixed block, and the fixed block is the transversal piece of personally submitting the V font, and the fixed block closely laminates in the upper end of outer protective sheath, and the equal fixed mounting in inside upper end of spout has two sets of spacing springs, fixed mounting has two sets of stoppers on the side around the outer protective sheath. The utility model discloses in, after two sets of sliding plates break away from the stopper rapidly on the slide bar after the lapse drive the sliding plate on adnexed sleet or sleet be the lapse together, two sets of sliding plates lapse make attached to the sliding plate on sleet or sleet drop and reached the effect of preventing icing, reduced the weight of cable, increased the life of cable.

Description

35kV high strength prevents icing aerial insulated cable

Technical Field

The utility model relates to a cable equipment field especially relates to a 35kV high strength prevents icing aerial insulated cable.

Background

The insulated overhead cable is a common overhead power transmission line, is mainly applied to urban streets, green areas, overhead lines close to buildings and rural wide areas with continuously improved requirements on power supply safety and operation management, and is particularly suitable for places such as densely populated cities, towns, green belts and the like.

Under the condition that the existing overhead insulated cable in the current market encounters strong snowfall and freezing rain weather, frost, ice and icicle can be formed on the surface of the cable, even a thick ice sleeve is formed on the surface of the overhead insulated cable, the self weight of the overhead insulated cable is increased, the cable is broken or a tower is broken, a circuit is interrupted, inconvenience is brought to life of people, and huge loss is caused to the country. Therefore, we propose a 35kV high-strength anti-icing aerial insulated cable.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem existing in the prior art and provides a 35kV high-strength anti-icing overhead insulated cable.

In order to achieve the purpose, the utility model adopts the following technical scheme that the 35kV high-strength ice-coating-proof overhead insulated cable comprises an outer protective sleeve, wherein the outer protective sleeve is a block with an equilateral triangle cross section, filling cavities are formed on the left side surface and the right side surface of the outer protective sleeve in a penetrating way and are triangular through holes, a fixed block is fixedly welded at the upper end of the outer protective sleeve and is a block with a V-shaped cross section, the length of the fixed block is the same as that of the outer protective sleeve, the fixed block is tightly attached to the upper end of the outer protective sleeve, two groups of limiting springs are fixedly arranged at the upper end inside the chute, the two groups of limiting springs are distributed in a left-right mirror image mode inside the chute, two groups of limiting blocks are fixedly arranged on the front side surface and the rear side surface of the outer protective sleeve, and one end of each limiting block, far away from the outer protective sleeve, is a rectangular block at the end of a semicircle close to the outer protective sleeve, the stopper can be fixed the sliding plate in both sides around the outer protective sheath through spacing spring, and the equal fixed mounting of lower extreme of stopper has the slide bar, and the slide bar is cylindrical stock and stopper and slide bar closely laminate on the trailing flank of outer protective sheath, and the sliding plate can slide with two sets of slide bars through two sets of spouts and be connected.

Preferably, the bearing steel core is fixedly arranged in the filling cavity and is a circular cylinder, a plurality of groups of steel core grooves are transversely and equidistantly formed in the left side and the right side of the outer surface of the bearing steel core, and the steel core grooves are arc-shaped grooves.

Preferably, the inside of the steel core groove is fixedly provided with conductive wire cores, a plurality of groups of conductive wire cores are surrounded around the bearing steel core by taking the bearing steel core as a center, the outer surface of each conductive wire core is provided with an insulating layer, the insulating layer wraps the conductive wire cores, and the outer surface of each insulating layer is provided with a fireproof layer.

Preferably, the front side and the rear side of the fixed block are both provided with spring grooves which are rectangular grooves, and the two groups of spring grooves are symmetrically distributed on the front side and the rear side of the fixed block.

Preferably, springs are fixedly mounted at the upper ends of the inner wall surfaces of the spring grooves, a plurality of groups of springs are distributed in the spring grooves at equal intervals from left to right, a connecting block is fixedly mounted at one end, far away from the spring grooves, of each spring, the connecting block is a rectangular block with front and rear side surfaces being inclined, and the front side surface of the connecting block is matched with the rear side surface structure of the fixing block.

Preferably, sliding plates are fixedly mounted at one end, far away from the spring, of the connecting block, the sliding plates are rectangular plates, the number of the sliding plates is two, sliding grooves are formed in one side face, close to each other, of each two groups of the sliding plates, the sliding grooves are circular grooves, and four groups of the sliding grooves are arranged.

Advantageous effects

The utility model provides a 35kV high strength prevents icing aerial insulated cable. The method has the following beneficial effects:

(1) when the 35kV high-strength anti-icing overhead insulated cable encounters strong snowfall and freezing rain weather, rain and snow fall above the connecting block and the sliding plate, the connecting block and the sliding plate are obliquely arranged on the outer surface of the outer protective sleeve, so that the rain and the snow are difficult to adhere to the connecting block and the sliding plate, when the rain and the snow are heavy and part of the rain and the snow are adhered to the upper surfaces of the connecting block and the sliding plate, the downward gravity of the rain and the snow enables the limiting spring to be separated from the limiting block, at the moment, the two groups of sliding grooves drive the sliding plate to slide downwards on the sliding plate, the two groups of sliding plates slide downwards on the sliding plate after being separated from the limiting block to drive the rain and the snow or the freezing rain adhered to the sliding plate to slide downwards together, the two groups of sliding plates slide downwards to enable the rain and the snow or the freezing rain adhered to fall off to achieve the anti-icing effect, and the weight of the cable is reduced, the service life of the cable is increased.

(2) This 35kV high strength prevents icing aerial insulated cable, after sleet or sleet fall off above the sliding plate, the weight of sliding plate reduces, at this moment under the pulling force effect of extension spring, the extension spring pulls back the initial position with the sliding plate, two sets of sliding plates can continue to play the guard action to 1, such setting can make the sliding plate do on the sliding rod according to adnexed sleet weight on self and move backward, the effectual weight of controlling aerial insulated cable, avoid the cable to lead to broken string or shaft tower rupture because of adhering to sleet overweight, circuit interruption brings inconvenience for people's life.

(3) This 35kV high strength prevents icing aerial insulated cable sets up multiunit conductor core respectively in bearing the steel core recess of seting up on the steel core, makes conductor core bigger with bearing the steel core contact surface, guarantees conductor core's lateral stability, avoids arousing the possibility of broken string because of aerial insulated cable spans too greatly, has increased the practicality.

Drawings

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

FIG. 2 is a schematic view of the three-dimensional split of the present invention;

FIG. 3 is a perspective view of the steel core of the present invention;

FIG. 4 is a perspective view of the stopper and the slide rod of the present invention;

fig. 5 is a schematic view of the sliding plate of the present invention.

Illustration of the drawings:

the structure comprises an outer protective sleeve 1, a filling cavity 2, a bearing steel core 3, a steel core groove 4, a conductive wire core 5, an insulating layer 6, a fireproof layer 7, a fixed block 8, a spring groove 9, a tension spring 10, a connecting block 11, a sliding plate 12, a sliding groove 13, a limiting spring 14, a limiting block 15 and a sliding rod 16.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Example (b): a35 kV high-strength ice-coating-preventing aerial insulated cable is shown in figures 1-5 and comprises an outer protective sleeve 1, wherein the outer protective sleeve 1 is a block with an equilateral triangle cross section, filling cavities 2 are formed in the left side surface and the right side surface of the outer protective sleeve 1 in a penetrating mode, the filling cavities 2 are triangular through holes, a bearing steel core 3 is fixedly arranged inside the filling cavities 2, the bearing steel core 3 is a circular cylinder, a plurality of groups of steel core grooves 4 are formed in the left side surface and the right side surface of the bearing steel core 3 at equal intervals in the transverse direction, the steel core grooves 4 are arc-shaped grooves, conductive wire cores 5 are fixedly arranged inside the steel core grooves 4, the plurality of groups of conductive wire cores 5 are wound around the bearing steel core 3 by taking the bearing steel core 3 as the center, an insulating layer 6 is arranged on the outer surface of each conductive wire core 5, the insulating layer 6 wraps the conductive wire cores 5, and a fireproof layer 7 is arranged on the outer surface of the insulating layer 6, the upper end of the outer protective sleeve 1 is fixedly welded with a fixed block 8, the fixed block 8 is a block with a V-shaped cross section, the length of the fixed block 8 is the same as that of the outer protective sleeve 1, the fixed block 8 is tightly attached to the upper end of the outer protective sleeve 1, the front side and the rear side of the fixed block 8 are both provided with spring grooves 9, the spring grooves 9 are rectangular grooves, two groups of spring grooves 9 are symmetrically distributed on the front side and the rear side of the fixed block 8, springs 10 are fixedly mounted on the upper end of the inner wall surface of the spring grooves 9, a plurality of groups of springs 10 are equidistantly distributed in the spring grooves 9 from left to right, one end of each spring 10 far away from the spring groove 9 is fixedly mounted with a connecting block 11, the connecting block 11 is a rectangular block with inclined front and rear sides, the front side of the connecting block 11 is structurally matched with the rear side of the fixed block 8, and one end of each connecting block 11 far away from the spring 10 is fixedly mounted with a sliding plate 12, the sliding plates 12 are rectangular plates, the sliding plates 12 are provided with two groups in total, one side surface of each group of the sliding plates 12 close to each other is provided with a sliding groove 13, the sliding grooves 13 are circular grooves, four groups of sliding grooves 13 are always arranged, two groups of limiting springs 14 are fixedly arranged at the upper ends of the inner parts of the sliding grooves 13, the two groups of limiting springs 14 are distributed in the sliding grooves 13 in a left-right mirror image manner, fixed mounting has two sets of stoppers 15 on the side around outer protective sheath 1, stopper 15 is the one end that the semicircle is close to outer protective sheath 1 for keeping away from the one end of outer protective sheath 1 and is the piece of rectangle, stopper 15 can be fixed sliding plate 12 in both sides around outer protective sheath 1 through spacing spring 14, the equal fixed mounting of lower extreme of stopper 15 has slide bar 16, slide bar 16 is cylindrical stock and stopper 15 and slide bar 16 closely laminate on the trailing flank of outer protective sheath 1, slide bar 12 can slide with two sets of slide bars 16 through two sets of spouts 13 and be connected.

The utility model discloses a theory of operation: when the weather is strong snowing or freezing rain, the rain and snow fall above the connecting block 11 and the sliding plate 12, because the connecting block 11 and the sliding plate 12 are both obliquely arranged on the outer surface of the outer protective sleeve 1, the rain and snow are difficult to attach, when the amount of the rain and snow is large, and part of the rain and snow or the freezing rain is attached to the upper surfaces of the connecting block 11 and the sliding plate 12, as the weight of the sliding plate 12 bearing the rain and snow is heavier and heavier, the downward gravity of the rain and snow enables the limiting spring 14 to be separated from the limiting block 15, at this time, the two sets of sliding grooves 13 drive the sliding plate 12 to slide downwards on the sliding rod 16.

The multiple groups of conductive wire cores 5 are respectively arranged in the steel core grooves 4 formed in the bearing steel core 3, so that the contact surfaces of the conductive wire cores 5 and the bearing steel core 3 are larger, and the transverse stability of the conductive wire cores 5 is ensured.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a 35kV high strength prevents icing aerial insulated cable, includes outer protective sheath (1), its characterized in that: the outer protective sleeve (1) is a block with an equilateral triangle cross section, filling cavities (2) are arranged on the left side surface and the right side surface of the outer protective sleeve (1) in a penetrating way, the upper end of the outer protective sleeve (1) is fixedly welded with a fixed block (8), the fixed block (8) is a block with a V-shaped cross section, the length of the fixing block (8) is the same as that of the outer protective sleeve (1), the fixing block (8) is tightly attached to the upper end of the outer protective sleeve (1), fixed mounting has two sets of stoppers (15) on the side around outer protective sheath (1), stopper (15) are the semicircle and are close to the one end of outer protective sheath (1) for keeping away from the one end of outer protective sheath (1) and be the piece of rectangle, and the equal fixed mounting of lower extreme of stopper (15) has slide bar (16), and stopper (15) and slide bar (16) closely laminate on the trailing flank of outer protective sheath (1).

2. The 35kV high-strength anti-icing overhead insulated cable according to claim 1, characterized in that: the bearing steel core (3) is fixedly arranged in the filling cavity (2), and a plurality of groups of steel core grooves (4) are transversely arranged on the left side and the right side of the outer surface of the bearing steel core (3) at equal intervals.

3. The 35kV high-strength anti-icing overhead insulated cable according to claim 2, characterized in that: the steel core groove (4) is internally and fixedly provided with conductive wire cores (5), and the multiple groups of conductive wire cores (5) surround the bearing steel core (3) by taking the bearing steel core (3) as the center.

4. The 35kV high-strength anti-icing overhead insulated cable according to claim 3, characterized in that: the surface of the conductive wire core (5) is provided with an insulating layer (6), the insulating layer (6) wraps the conductive wire core (5), and a fireproof layer (7) is arranged on the surface of the insulating layer (6).

5. The 35kV high-strength anti-icing overhead insulated cable according to claim 1, characterized in that: spring grooves (9) are formed in the front side face and the rear side face of the fixing block (8), and the two groups of spring grooves (9) are symmetrically distributed on the front side face and the rear side face of the fixing block (8) in the front-rear direction.

6. The 35kV high-strength anti-icing overhead insulated cable according to claim 5, characterized in that: the equal fixed mounting in internal face upper end of spring groove (9) has spring (10), and multiunit spring (10) from left to right the equidistance distributes in the inside of spring groove (9), and the one end fixed mounting that spring groove (9) were kept away from in spring (10) has connecting block (11), connecting block (11) are the rectangle piece that the slope form is personally submitted to both sides around for, the leading flank of connecting block (11) and the trailing flank structure looks adaptation of fixed block (8).

7. The 35kV high-strength anti-icing overhead insulated cable according to claim 6, characterized in that: one end of the connecting block (11) far away from the spring (10) is fixedly provided with two groups of sliding plates (12), and one side face of each group of sliding plates (12) close to each other is provided with a sliding groove (13).

8. The 35kV high-strength anti-icing overhead insulated cable according to claim 7, characterized in that: the inner upper end of the sliding groove (13) is fixedly provided with two groups of limiting springs (14), the two groups of limiting springs (14) are distributed in the sliding groove (13) in a left-right mirror mode, and the limiting block (15) can fix the sliding plate (12) on the front side and the rear side of the outer protective sleeve (1) through the limiting springs (14).