CN217115538U

CN217115538U - Gantry-type framework structure of overhead line

Info

Publication number: CN217115538U
Application number: CN202123151118.9U
Authority: CN
Inventors: 任洪涛
Original assignee: PowerChina Huadong Engineering Corp Ltd
Current assignee: PowerChina Huadong Engineering Corp Ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-08-02
Anticipated expiration: 2031-12-15

Abstract

The utility model provides an overhead line strides a type framework structure, including door type framework, door type framework steel coupling mechanism and insulator setting element, can be applied to the occasion that overhead line strideed across a type framework, make the insulator fix in door type framework's top reliably, ensured the safe distance when overhead line passes through, simultaneously, the utility model discloses a fixed connection of insulator and angle steel to make the reliable door type frame that passes of overhead line of fastening on the insulator, avoid arousing the trouble in extreme weather, the utility model discloses a door type framework steel coupling mechanism and insulator setting element can adopt the angle steel to constitute, simple structure and light in weight.

Description

Gantry-type framework structure of overhead line

Technical Field

The utility model relates to an overhead line strides door type framework structure.

Background

The situation that 10-35 kV overhead lines cross a portal frame can be met in places such as subways, high-speed rails and small-sized substations. It is now common practice to suspend insulators below the gantry for overhead line crossing. However, some gantry frames are not high enough or other devices are arranged below the gantry frames, so that the safety distance of overhead lines passing through the gantry frames is not enough, and the overhead lines are fixed by the post insulators on the upper portions of the gantry frames, so that the overhead lines are swung due to weather such as strong wind, and short-circuit faults are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an overhead line strides door type framework structure can solve because the not enough problem of safe distance when leading to overhead line to pass through from the below of door type frame mounting height to and arouse the problem of short circuit easily under bad weather when current insulator fixed overhead line.

Therefore, the utility model adopts the following technical scheme:

an overhead line cross-portal frame structure is characterized by comprising a portal frame, a portal frame steel connecting mechanism and an insulator positioning piece; door type framework steel coupling mechanism respectively with both sides fixed connection about the door type framework, the insulator setting element with door type framework steel connecting piece fixed connection, just insulator setting element upper end is higher than the door type framework, insulator setting element upper end fixedly connected with insulator.

On the basis of adopting above-mentioned technical scheme, the utility model discloses still can adopt following further technical scheme, or to these further technical scheme combined use:

gantry includes lower floor's angle steel and upper angle steel, the insulator setting element includes gamma type angle steel, gamma type angle steel includes vertical angle steel and horizontal angle steel, lower floor's angle steel with upper angle steel is parallel to each other, lower floor's angle steel with upper angle steel perpendicular to respectively gantry, lower floor's angle steel with upper angle steel respectively with gantry connects, vertical angle steel perpendicular to lower floor's angle steel with upper angle steel, vertical angle steel respectively with lower floor's angle steel with upper angle steel connects.

The left end of the upper portion of the inverted L-shaped angle steel is provided with bolt holes distributed in an array mode, and the bolt holes are connected with insulators through bolts.

The insulator downside is equipped with the round hole around lining up, the round hole can be through the overhead line, the terminal surface passes through bolt fixedly connected with fastener under the insulator, the fastener can be in with the wire fastening on the insulator.

The distance H between the lower surface of the insulator and the upper surface of the gantry framework is 500-1000 mm.

The distance L between the overhead line and the inverted L-shaped angle steel is 400-600 mm.

Because of adopting the technical scheme of the utility model, the utility model discloses a can be applied to the occasion that the overhead line stridees across door type framework, make the insulator fix reliably in door type framework's top, ensured the safe distance when overhead line passes through, simultaneously, the utility model discloses a fixed connection of insulator and angle steel to make the reliable door type frame that passes of overhead line of fastening on the insulator, avoid arousing the trouble at extreme weather, the utility model discloses a door type framework steel coupling mechanism and insulator setting element can adopt the angle steel to constitute, simple structure and light in weight.

Drawings

Fig. 1 is a schematic view of an embodiment of the overhead line gantry frame structure of the present invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is an enlarged view of a point a in fig. 1.

Fig. 4 is an enlarged view at B in fig. 2.

Detailed Description

Reference will now be made in detail to the 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 drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Reference is made to the accompanying drawings. The utility model provides a pair of gantry structure is striden to overhead line is applied to subway, high-speed railway, miniature substation etc. and can meet the occasion that 10 ~ 35kV overhead line stridees across gantry structure, including gantry structure 1, lower floor's angle steel 2, upper angle steel 3, gamma type angle steel 4. L-shaped angle steel 4 comprises vertical angle steel 42 and the perpendicular fixed connection of horizontal angle steel 41, the door type framework that the occasion of door type framework was set up is strideed across to door type framework 1 for the built on stilts line, 2 up end of lower floor's angle steel and 1 terminal surface welded connection under the door type framework, 2 rear side tip of lower floor's angle steel is through welded connection

vertical angle steel

42, 3 lower terminal surfaces of upper strata angle steel with 1 up end welded connection of door type framework, 3 rear side tip of upper strata angle steel with vertical angle steel 42 welded connection, vertical angle steel 42 is kept away from door type framework one end fixed connection has horizontal angle steel 41, L-shaped angle steel 4 is as the insulator setting element.

4 upper portion left side one ends of gamma type angle steel are equipped with 4 array distribution's bolt trompil 41, bolt trompil 41 has through bolted connection to be located upper layer angle steel 3 with insulator 5 between the gamma

type angle steel

4, 5 downside of insulator are equipped with round hole 51 around lining up, round hole 51 can be through overhead line 6, the terminal surface passes through bolt fixedly connected with fastener 7 under the insulator 5, fastener 7 can be in with the wire fastening on the insulator 5.

The distance H between the lower surface of the insulator 5 and the upper surface of the door-shaped framework 1 is 800 mm.

The distance L between the overhead line 6 and the inverted L-shaped angle steel 4 is 500 mm.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e. all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention, which is not illustrated herein.

Claims

1. An overhead line cross-portal frame structure is characterized by comprising a portal frame, a portal frame steel connecting mechanism and an insulator positioning piece; door type framework steel coupling mechanism respectively with both sides fixed connection about the door type framework, the insulator setting element with door type framework steel connecting piece fixed connection, just insulator setting element upper end is higher than the door type framework, insulator setting element upper end fixedly connected with insulator.

2. The overhead line gantry structure according to claim 1, wherein the gantry connection mechanism comprises a lower layer of angle steel and an upper layer of angle steel, the insulator positioning member comprises a Γ -type angle steel, the Γ -type angle steel is formed by vertically and fixedly connecting a vertical angle steel and a horizontal angle steel, the lower layer of angle steel and the upper layer of angle steel are parallel to each other, the lower layer of angle steel and the upper layer of angle steel are perpendicular to the gantry respectively, the lower layer of angle steel and the upper layer of angle steel are connected with the gantry respectively, the vertical angle steel is perpendicular to the lower layer of angle steel and the upper layer of angle steel, and the vertical angle steel is connected with the lower layer of angle steel and the upper layer of angle steel respectively.

3. The overhead line gantry type frame structure of claim 2, wherein bolt openings are formed in an array at one end of the left side of the upper portion of the t-shaped angle steel, and the bolt openings are connected with insulators through bolts.

4. The overhead line gantry frame structure of claim 1, wherein the insulator has a circular hole through the front and rear sides at the lower side thereof, the circular hole being capable of passing through the overhead line, and a wire clamp is fixedly connected to the lower end surface of the insulator by a bolt, the wire clamp being capable of fastening a wire to the insulator.

5. The overhead line gantry frame structure according to claim 1, wherein the distance H between the lower surface of the insulator and the upper surface of the gantry frame is 500-1000 mm.

6. The overhead line gantry type frame structure according to claim 2, wherein a distance L between the overhead line and the inverted L-shaped angle steel is 400-600 mm.