CN219672288U - Wine glass type crossing tower for crossing - Google Patents
Wine glass type crossing tower for crossing Download PDFInfo
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- CN219672288U CN219672288U CN202320573267.4U CN202320573267U CN219672288U CN 219672288 U CN219672288 U CN 219672288U CN 202320573267 U CN202320573267 U CN 202320573267U CN 219672288 U CN219672288 U CN 219672288U
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- 239000011521 glass Substances 0.000 title claims abstract description 70
- 239000004020 conductor Substances 0.000 claims abstract description 81
- 238000005553 drilling Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to the technical field of high-voltage transmission, in particular to a wine glass type drilling tower for crossing, which comprises a middle cross arm, wherein two ends of the middle cross arm are respectively and symmetrically connected with side cross arms, the upper part of each side cross arm is connected with a ground wire frame, two ground wire frames are symmetrically arranged and are inclined outwards, and the tail ends of the ground wire frames are provided with ground wire hanging points; the lower parts of the two ends of the middle cross arm are fixedly connected with a crank arm respectively; the two crank arms are symmetrically arranged, the upper ends of the crank arms are fixedly connected with the middle cross arm, and the lower ends of the crank arms are fixedly connected with tower legs; the lower part of the middle cross arm is also provided with a middle phase conductor tying and hanging unit, and one end of the side cross arm far away from the middle cross arm is provided with a side phase conductor tension string hanging point and a first side phase conductor jumper string hanging point; two jumper brackets are symmetrically arranged on two sides of one end, far away from the middle cross arm, of one side cross arm, and a second side phase wire jumper string hanging point is arranged on the lower surface of each jumper bracket.
Description
Technical Field
The utility model relates to the technical field of high-voltage transmission, in particular to a wine glass type crossing tower for crossing.
Background
The construction of the domestic power grid is accompanied with the rapid increase of national economy, the requirements on environmental protection and water and soil conservation are also increasing, the construction of the ultra-high voltage power grid has a certain advance, but the electric power corridor still has an increasingly tense situation, and the selection of crossing points meeting the requirements on electric safety distance is also more and more difficult along with the continuous increase of the crossing quantity of electric power lines.
In the power transmission line engineering, when two lines are crossed, the problem is generally solved by adopting two modes of high-span and drilling. The high-span mode is generally used in the case of lower voltage level of the established line, lower tower height and higher voltage level of the line to be crossed. The over-drilling mode is generally used in the case that the voltage level of an established line is higher and the voltage level of an intended over-drilling line is lower.
For urban periphery and line corridor crowded areas, if a high-span mode is adopted for construction when the crossing problem of the lines is solved, the crossed lines need to be subjected to power failure treatment, so that certain difficulty is brought to engineering construction; moreover, in engineering areas with limited high requirements, the high-span mode cannot be adopted.
If the construction is performed in a drilling mode, a wine glass tower is generally used as a drilling tower at present, but the number of rotation angles of the conventional wine glass tower limits the drilling point position of a line, so that the construction cannot be effectively and reasonably performed under the condition of meeting the electric safety distance requirement; in order to ensure the electrical safety distance between the jumper wire of the outer angle side wire and the tower body, the side cross arm on the outer angle side of the large-angle wine glass type crossing tower is lengthened, so that the existing large-angle wine glass type crossing tower occupies more space in the width direction relative to the conventional wine glass tower, the selection of crossing points is influenced by more width factors, and other peripheral construction operations are limited more greatly; and because the components such as the middle cross arm, the side cross arm and the ground wire frame of the conventional large-angle wine glass type crossing tower cannot be commonly used, the components of the conventional large-angle wine glass type crossing tower need to be manufactured and processed independently, the universality of the components is reduced, and the production cost and the production period are increased.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the wine glass type crossing tower for crossing, so that the problem that the existing large-angle wine glass type crossing tower occupies more space in the width direction relative to the conventional wine glass type crossing tower, the selection of crossing points can be influenced by more width factors, and other construction operations on the subsequent periphery can be more limited; and because the components such as the middle cross arm, the side cross arm and the ground wire frame of the conventional large-angle wine glass type crossing tower cannot be used commonly, the components of the conventional large-angle wine glass type crossing tower need to be manufactured and processed independently, the universality of the components is reduced, and the production cost and the production period are increased.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the wine glass type crossing tower comprises a middle cross arm, wherein two ends of the middle cross arm are respectively and symmetrically connected with an edge cross arm, the upper part of each edge cross arm is connected with a ground wire rack, two ground wire racks are symmetrically arranged and are inclined outwards, and the tail end of each ground wire rack is provided with a ground wire hanging point;
the ground wire frame and the side cross arm form an acute angle;
the central line of the vertical plane of the ground wire frame and the central line of the vertical plane of the side cross arm are in the same vertical plane.
It can be understood that the side cross arm and the ground wire frame directly form a triangle structure;
the side cross arms, the ground wire frame and the middle cross arm are space truss frames formed by rod pieces.
The rod members can be made of the same specification materials.
The lower parts of the two ends of the middle cross arm are fixedly connected with a crank arm respectively; the two crank arms are symmetrically arranged, the upper ends of the crank arms are fixedly connected with the middle cross arm, and the lower ends of the crank arms are fixedly connected with tower legs;
the crank arm is a space truss frame formed by rod pieces.
The lower part of the middle cross arm is also provided with a middle phase conductor tying and hanging unit, and one end of the side cross arm far away from the middle cross arm is provided with a side phase conductor tension-resisting string hanging point and a first side phase conductor jumper string hanging point;
two jumper brackets are symmetrically arranged on two sides of one end, far away from the middle cross arm, of one side cross arm, and a second side phase conductor jumper string hanging point is arranged on the lower surface of each jumper bracket.
Two jumper brackets are symmetrically arranged on two sides of one end, far away from the middle cross arm, of one side cross arm, the jumper brackets are detachably and fixedly connected to the side cross arm, and a second side phase wire jumper string hanging point is arranged on the lower surface of each jumper bracket; the wine glass type drilling tower for crossing provided by the utility model is enabled to be used when the wire rotation angle of each phase is larger (usually, the rotation angle is larger than 40 degrees and not larger than 90 degrees); the tension strings of two side phase wires can be directly tied and hung on the tension string hanging points of the side phase wires of the side cross arm at the corresponding side, and an I-shaped jumper string is respectively arranged on the jumper string hanging points of the two second side phase wires to ensure the electrical safety distance between the jumper wires of the side phase wires at the outer angle and the tower body (namely, the jumper strings of the side phase wires at the outer angle are set as two I-shaped jumper strings, one I-shaped jumper string is tied and hung on one of the jumper string hanging points of the second side phase wires, and the other I-shaped jumper string is tied and hung on the other jumper string hanging point of the second side phase wires);
the wine glass type crossing tower for crossing provided by the utility model has the advantages that when the wire angle of each phase is not large (usually the angle is 0-40); the tension strings of the two side phase wires can be directly tied and hung on the tension string hanging points of the side phase wires of the side cross arm at the corresponding side, and the jumper strings of the two side phase wires are directly tied and hung on the jumper string hanging points of the first side phase wires of the side cross arm at the corresponding side;
the two ends of the middle cross arm are symmetrically connected with side cross arms respectively, the upper plane of each side cross arm is connected with a ground wire frame, and the two ground wire frames are symmetrically arranged and incline outwards; the lengths of the side cross arms on two sides of the wine glass type crossing tower for crossing are consistent; the two jumper wire brackets are symmetrically arranged at two sides of the side cross arm, so that the jumper wire brackets do not occupy the space in the width direction of the wine glass type crossing tower for crossing, and the space occupied by the wine glass type crossing tower for crossing is consistent with that occupied by the conventional wine glass type crossing tower in the width direction;
in summary, the wine glass type crossing tower for crossing solves the problem that the existing large-angle wine glass type crossing tower occupies more space in the width direction compared with the conventional wine glass type tower, so that the selection of crossing points is influenced by more width factors and other construction operations on the subsequent periphery are limited more greatly; and because the components such as the middle cross arm, the side cross arm and the ground wire frame of the conventional large-angle wine glass type crossing tower cannot be used commonly, the components of the conventional large-angle wine glass type crossing tower need to be manufactured and processed independently, the universality of the components is reduced, and the production cost and the production period are increased.
Further, the middle phase conductor tying unit comprises a middle phase conductor tension string tying component for tying a tension string of the middle phase conductor and a middle phase conductor jumper string tying component for tying a jumper string of the middle phase conductor.
Further, the middle phase conductor tension string hanging assembly comprises a first middle phase conductor tension string hanging point and a second middle phase conductor tension string hanging point which are sequentially arranged at intervals from the middle of the lower surface of the middle cross arm to one side of the lower surface of the middle cross arm, which is close to the jumper bracket.
By setting the tension string hanging point of the first middle phase conductor and the tension string hanging point of the second middle phase conductor, the tension string of the middle phase conductor can be hung on the tension string hanging point of the first middle phase conductor when the rotation angle of the middle phase conductor is not large (usually when the rotation angle is 0-40 degrees), and the tension string of the middle phase conductor can be hung on the tension string hanging point of the second middle phase conductor when the rotation angle of the middle phase conductor is large (usually when the rotation angle is more than 40 degrees and not more than 90 degrees), so that the tension strings of the middle phase conductor with different rotation angles can be hung at proper positions on the middle cross arm.
Further, the middle phase wire jumper string hanging component comprises two first middle phase wire jumper string hanging points, the two first middle phase wire jumper string hanging points are all arranged in the middle of the lower surface of the middle cross arm, and the two first middle phase wire jumper string hanging points are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm.
Further, the medium phase wire tying and hanging unit comprises two medium phase wire jumper wire string tying and hanging components; the two middle phase wire jumper string hanging components are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm, and each middle phase wire jumper string hanging component comprises a second middle phase wire jumper string hanging point which is symmetrically arranged on the lower surface of the middle cross arm.
The two technical schemes respectively provide the arrangement modes of jumper strings of two medium-phase wires;
in the first scheme, two first middle phase wire jumper string hanging points are arranged in the middle of the lower surface of the middle cross arm, and the two first middle phase wire jumper string hanging points are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm; and one I-shaped jumper string can be respectively tied on the two first medium phase wire jumper string hanging points, and the medium phase wire jumpers are tied through the two I-shaped jumper strings.
In a second scheme, two middle phase wire jumper string hanging components are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm, and each middle phase wire jumper string hanging component comprises second middle phase wire jumper string hanging points which are symmetrically arranged on the lower surface of the middle cross arm; a group of V-shaped jumper strings can be arranged on each middle phase wire jumper string tying component, and the jumpers of the middle phase wires are tied through two groups of V-shaped jumper strings; compared with the first scheme, the two-phase jumper wire connecting device has more jumper wire connecting points (the first scheme is two jumper wire connecting points, the second scheme is four jumper wire connecting points), but the scheme of connecting the jumper wires of the middle phase wires through two groups of V-shaped jumper wire connecting strings has better jumper wire restraining effect on the middle phase wires than the scheme of connecting the jumper wires of the middle phase wires through two I-shaped jumper wire connecting strings; the electric safety distance between the jumper wire of the medium-phase lead and the tower body can be better ensured.
Further, the jumper string hanging point of the first side phase wire is used for hanging the jumper string of the side phase wire with the corner angle of 0-40 degrees.
Further, the jumper string hanging point of the second side phase conductor is used for hanging the jumper string of the side phase conductor with the external angle of the corner angle being larger than 40 degrees and not larger than 90 degrees.
When the corner angle of the second side phase wire jumper string hanging point is larger than 40 degrees and is not larger than 90 degrees, the corner angle of the inner angle side phase wire is also larger than 40 degrees and is not larger than 90 degrees, the distance between the jumper wire of the inner angle side phase wire and the tower body is far, when the distance between the jumper wire of the inner angle side phase wire and the tower body meets the electric safety distance, the jumper wire of the inner angle side phase wire can not be provided with the jumper wire string, and when the distance between the jumper wire of the inner angle side phase wire and the tower body does not meet the electric safety distance, the jumper wire of the inner angle side phase wire should be provided with the jumper wire string, and the jumper wire string should be hung on the jumper wire string hanging point of the first side phase wire on the side cross arm without the jumper wire support.
Further, the jumper string hanging point of the first side phase conductor on the side cross arm of the jumper bracket is not arranged for hanging the jumper string of the inner angle side phase conductor with the corner angle larger than 40 degrees and not larger than 90 degrees.
Further, the jumper wire supports are detachably and fixedly connected to the side cross arms.
Because the jumper wire strings of the two side phase wires are directly tied and hung on the jumper wire string hanging points of the first side phase wire of the side cross arm at the corresponding side when the corners of the phase wires are not large (usually the corners are 0-40 °); at this time, the jumper string of the side phase conductor is installed without using the jumper bracket; the jumper wire supports are detachably and fixedly connected to the side cross arms, so that the jumper wire supports are not installed when the corners of all phase wires are not large (usually the corners are 0-40 degrees), and the overall construction and installation time of the wine glass type crossing tower for crossing is shortened.
Furthermore, the jumper wire supports are all columnar and are horizontally arranged perpendicular to the side cross arms, and the first end parts of the jumper wire supports are fixedly connected to the side cross arms; and the jumper wire string hanging points of the second side phase lead are all arranged on the lower side of the second end part of the jumper wire support.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a wine glass type drilling tower for crossing when the number of lead angles is 0-40 degrees in an embodiment;
FIG. 2 is a front view of a structure of a wine glass type drilling tower for crossing over at a wire angle of 0-40 in an embodiment;
FIG. 3 is a top view of a configuration of a wine glass type drilling tower for crossover at wire angles of 0-40 in an embodiment;
FIG. 4 is a schematic perspective view of a wine glass type drilling tower for crossing when the number of lead angles is greater than 40 DEG and not greater than 90 DEG in an embodiment;
fig. 5 is a front view of a structure of a wine glass type drilling tower for crossing over when the number of wire angles is greater than 40 ° and not greater than 90 ° in the embodiment.
FIG. 6 is a top view of a configuration of a wine glass type of drilling tower for crossover when the number of wire turns is greater than 40 and not greater than 90 in an embodiment.
The device comprises a 1-tower leg, a 2-crank arm, a 3-middle cross arm, a 4-side cross arm, a 5-ground wire frame, a 6-jumper wire support, a tension-resistant string of 7-side phase wires, a jumper string of 8-outer angle side phase wires, a jumper string of 9-inner angle side phase wires, a tension-resistant string of 10-middle phase wires, a jumper string of 11-middle phase wires, a tension-resistant string hanging point of 12-first middle phase wires and a tension-resistant string hanging point of 13-second middle phase wires.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the examples described are only some, but not all, examples of the present utility model.
As shown in fig. 1 to 6, the embodiment provides a wine glass type crossing tower for crossing, which comprises a middle cross arm 3, wherein two ends of the middle cross arm 3 are respectively and symmetrically connected with side cross arms 4, the upper plane of each side cross arm 4 is connected with a ground wire frame 5, two ground wire frames 5 are symmetrically arranged and are inclined outwards, and the tail ends of the ground wire frames 5 are provided with ground wire hanging points;
the ground wire frame 5 and the side cross arm 4 form an acute angle;
the central line of the vertical plane of the ground wire frame 5 and the central line of the vertical plane of the side cross arm 4 are in the same vertical plane.
It can be appreciated that the side cross arm 4 and the ground wire frame 5 directly form a triangular structure;
the side cross arms 4, the ground wire frame 5 and the middle cross arm 3 are space truss frames formed by rod pieces.
The rod members can be made of the same specification materials.
The lower surfaces of the two ends of the middle cross arm 3 are respectively fixedly connected with a crank arm 2; the two crank arms 2 are symmetrically arranged, the upper ends of the crank arms 2 are fixedly connected with the middle cross arm 3, and the lower ends of the crank arms 2 are fixedly connected with the tower legs 1; the tower legs 1 are arranged on the foundation;
the crank arm 2 is a space truss frame formed by rods.
A middle phase conductor tying and hanging unit is arranged on the lower surface of the middle cross arm 3, and one end of the side cross arm 4, which is far away from the middle cross arm 3, is provided with a side phase conductor tension string hanging point and a first side phase conductor jumper string hanging point;
two jumper brackets 6 are symmetrically arranged on two sides of one end, far away from the middle cross arm 3, of one side cross arm 4, and a second side phase conductor jumper string hanging point is arranged on the lower surface of each jumper bracket 6.
Two jumper brackets 6 are symmetrically arranged on two sides of one end, far away from the middle cross arm 3, of one side cross arm 4, the jumper brackets 6 are detachably and fixedly connected to the side cross arm 4, and a second side phase conductor jumper string hanging point is arranged on the lower surface of each jumper bracket 6; when the turning angle of each phase of lead is more than 40 degrees and not more than 90 degrees, the wine glass type drilling tower for crossing is provided by the utility model; the tension strings 7 of the two side phase wires can be directly tied and hung on the side phase wire tension string hanging points of the side cross arm 4 at the corresponding side, and an I-shaped jumper string is respectively arranged on the two second side phase wire jumper string hanging points to ensure the electrical safety distance between the jumper wires of the side phase wires at the outer angle and the tower body (namely, the jumper string 8 of the side phase wires at the outer angle is set as two I-shaped jumper strings, one I-shaped jumper string is tied and hung on one of the second side phase wire jumper string hanging points, and the other I-shaped jumper string is tied and hung on the other second side phase wire jumper string hanging point);
the wine glass type crossing tower for crossing provided by the utility model has the advantages that the angle of each phase of lead is 0-40 degrees (including 0-40 degrees); the tension strings 7 of the two side phase wires can be directly tied and hung on the tension string hanging points of the side phase wires of the side cross arm 4 at the corresponding side, and the jumper strings of the two side phase wires (namely the jumper string 8 of the outer corner side phase wire and the jumper string 9 of the inner corner side phase wire) are directly tied and hung on the jumper string hanging points of the first side phase wire of the side cross arm 4 at the corresponding side (at the moment, the jumper string 8 of the outer corner side phase wire and the jumper string 9 of the inner corner side phase wire are both set as I-shaped jumper strings);
two ends of the middle cross arm 3 are symmetrically connected with side cross arms 4 respectively, the upper plane of each side cross arm 4 is connected with a ground wire frame 5, and the two ground wire frames 5 are symmetrically arranged and are inclined outwards; the lengths of the side cross arms 4 on the two sides of the wine glass type crossing tower for crossing are consistent; the two jumper wire brackets 6 are symmetrically arranged at two sides of the side cross arm 4, so that the jumper wire brackets 6 do not occupy the space in the width direction of the wine glass type crossing tower for crossing provided by the embodiment, and the space occupied in the width direction of the wine glass type crossing tower for crossing provided by the embodiment is consistent with that of a conventional wine glass type crossing tower;
in summary, the wine glass type crossing tower for crossing provided by the embodiment solves the problem that the existing large-angle wine glass type crossing tower occupies more space in the width direction compared with the conventional wine glass type tower, so that the selection of crossing points can be influenced by more width factors, and other subsequent peripheral construction operations can be limited more greatly; and because the components such as the middle cross arm, the side cross arm and the ground wire frame of the conventional large-angle wine glass type crossing tower cannot be used commonly, the components of the conventional large-angle wine glass type crossing tower need to be manufactured and processed independently, the universality of the components is reduced, and the production cost and the production period are increased.
As shown in fig. 1, 2, 4 and 5, the middle phase conductor tying unit includes a middle phase conductor tension string tying component for tying the tension string 10 of the middle phase conductor and a middle phase conductor jumper string tying component for tying the jumper string 11 of the middle phase conductor.
As shown in fig. 2 and 5, the middle phase conductor tension string hanging assembly includes a first middle phase conductor tension string hanging point 12 and a second middle phase conductor tension string hanging point 13 sequentially and alternately arranged from the middle of the lower surface of the middle cross arm 3 to one side of the lower surface of the middle cross arm 3, which is close to the jumper bracket 6.
By arranging the first middle phase wire tension string hanging point 12 and the second middle phase wire tension string hanging point 13, the tension strings 10 of the middle phase wires can be hung on the first middle phase wire tension string hanging point 12 when the rotation angle of the middle phase wires is 0-40 degrees, and the tension strings 10 of the middle phase wires can be hung on the second middle phase wire tension string hanging point 13 when the rotation angle of the middle phase wires is more than 40 degrees and not more than 90 degrees, so that the tension strings 10 of the middle phase wires with different rotation angles can be hung at proper positions on the middle cross arm 3.
The middle phase wire jumper string hanging component is arranged in various modes, including but not limited to:
scheme one:
the middle phase wire jumper string hanging component comprises two first middle phase wire jumper string hanging points which are arranged in the middle of the lower surface of the middle cross arm 3 at intervals along the direction perpendicular to the central axis of the middle cross arm 3.
Scheme II:
the medium phase conductor tying and hanging unit comprises two medium phase conductor jumper wire string tying and hanging components; the two middle phase wire jumper string hanging components are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm 3, and each middle phase wire jumper string hanging component comprises second middle phase wire jumper string hanging points which are symmetrically arranged on the lower surface of the middle cross arm 3.
The two technical schemes also actually respectively propose the arrangement modes of the jumper strings 11 of the two medium-phase wires;
in the first scheme, two first middle phase wire jumper wire string hanging points are arranged in the middle of the lower surface of the middle cross arm 3, and the two first middle phase wire jumper wire string hanging points are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm 3; i-type jumper strings can be respectively tied on the two first medium phase wire jumper string hanging points, and the medium phase wire jumpers are tied through the two I-type jumper strings (i.e. the jumper string 11 of the medium phase wire is set as two I-type jumper strings)
In the scheme II, two middle-phase wire jumper string hanging components are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm 3, and each middle-phase wire jumper string hanging component comprises second middle-phase wire jumper string hanging points which are symmetrically arranged on the lower surface of the middle cross arm 3; a group of V-shaped jumper strings can be arranged on each middle phase wire jumper string tying component, and the jumpers of the middle phase wires are tied through two groups of V-shaped jumper strings (namely, the jumper strings 11 of the middle phase wires are arranged into two groups of V-shaped jumper strings);
compared with the first scheme, the scheme has more jumper string hanging points (the first scheme is two jumper string hanging points, the second scheme is four jumper string hanging points), but the scheme of tying the jumper of the middle phase conductor through two groups of V-shaped jumper strings has better jumper constraint effect on the middle phase conductor compared with the scheme of tying the jumper of the middle phase conductor through two I-shaped jumper strings; the electric safety distance between the jumper wire of the medium-phase lead and the tower body can be better ensured.
In this embodiment, as shown in fig. 1, 2, 3 and 4, the jumper string hanging components of the medium phase conductors are set in the setting mode of the scheme two, and the jumper strings 11 of the corresponding medium phase conductors are set as two sets of V-shaped jumper strings.
As shown in fig. 1, 2 and 3, the first edge phase wire jumper string hanging point is used for hanging the edge phase wire jumper strings (i.e. the outer edge phase wire jumper string 8 and the inner edge phase wire jumper string 9) with the corner angle of 0 ° to 40 °, and in this embodiment, the outer edge phase wire jumper string 8 and the inner edge phase wire jumper string 9 are both set as a single I-type jumper string.
As shown in fig. 4, 5 and 6, the second side phase conductor jumper string hanging point is used for hanging the jumper string 8 of the outer side phase conductor with the corner angle being greater than 40 ° and not greater than 90 ° (at this time, the jumper string 8 of the outer side phase conductor is set as two I-type jumper strings).
When the corner angle of the second side phase wire jumper string hanging point is larger than 40 degrees and not larger than 90 degrees of the outer side phase wire jumper string 8, the corner angle of the inner side phase wire is also larger than 40 degrees and not larger than 90 degrees, the distance between the inner side phase wire jumper and the tower body is far, when the distance between the inner side phase wire jumper and the tower body meets the electric safety distance, the inner side phase wire jumper can be not provided with the jumper string, and when the distance between the inner side phase wire jumper and the tower body does not meet the electric safety distance, the inner side phase wire jumper should be provided with the jumper string, and the jumper string (namely, the inner side phase wire jumper string 9) should be hung on the first side phase wire jumper string hanging point on the side cross arm 4 without the jumper bracket 6 (at this time, the inner side phase wire jumper string 9 can be set as a single I-shaped jumper string).
Therefore, alternatively, the jumper string hanging point of the first side phase conductor on the side cross arm 4 where the jumper bracket 6 is not provided may be used to hang the jumper string 9 (not shown in the figure) of the inner angle side phase conductor with the angle of rotation being greater than 40 ° and not greater than 90 °.
In this embodiment, since the corner angle of the inner corner side phase conductor is also greater than 40 ° and not greater than 90 °, the distance between the jumper wire of the inner corner side phase conductor and the tower body satisfies the electrical safety distance requirement, and the jumper wire string 9 of the inner corner side phase conductor is not provided.
Wherein, wire jumper support 6 all detachable fixed connection is on limit cross arm 4.
Because the jumper strings of the two side phase conductors (namely the jumper string 8 of the outer corner side phase conductor and the jumper string 9 of the inner corner side phase conductor) are directly tied and hung on the first side phase conductor jumper string hanging point of the side cross arm 4 at the corresponding side when the angle of each phase conductor is 0-40 degrees; at this time, the jumper wire string of the side phase conductor is installed without using the jumper wire bracket 6; the jumper wire brackets 6 are detachably and fixedly connected to the side cross arms 4, so that the jumper wire brackets 6 are not installed when the angles of the phase conductors are 0-40 degrees, and the integral construction and installation time of the wine glass type crossing tower for crossing is shortened.
As shown in fig. 4 and 6, the jumper brackets 6 are all columnar and are horizontally arranged perpendicular to the side cross arm 4, and the first ends of the jumper brackets 6 are fixedly connected to the side cross arm 4; the second side phase conductor jumper string hanging points are all arranged on the lower side of the second end part of the jumper bracket 6.
The wine glass type crossing tower for crossing provided by the embodiment has at least the following technical effects or advantages:
1. two jumper brackets 6 are symmetrically arranged on two sides of one end, far away from the middle cross arm 3, of one side cross arm 4, the jumper brackets 6 are detachably and fixedly connected to the side cross arm 4, and a second side phase conductor jumper string hanging point is arranged on the lower surface of each jumper bracket 6; when the turning angle of each phase of lead is more than 40 degrees and not more than 90 degrees, the wine glass type drilling tower for crossing is provided by the utility model; the tension strings 7 of the two side phase wires can be directly tied and hung on the side phase wire tension string hanging points of the side cross arm 4 at the corresponding side, and an I-shaped jumper string is respectively arranged on the two second side phase wire jumper string hanging points to ensure the electrical safety distance between the jumper wires of the side phase wires at the outer angle and the tower body (namely, the jumper string 8 of the side phase wires at the outer angle is set as two I-shaped jumper strings, one I-shaped jumper string is tied and hung on one of the second side phase wire jumper string hanging points, and the other I-shaped jumper string is tied and hung on the other second side phase wire jumper string hanging point);
the wine glass type crossing tower for crossing provided by the utility model has the advantages that the angle of each phase of lead is 0-40 degrees (including 0-40 degrees); the tension strings 7 of the two side phase wires can be directly tied and hung on the tension string hanging points of the side phase wires of the side cross arm 4 at the corresponding side, and the jumper strings of the two side phase wires (namely the jumper string 8 of the outer corner side phase wire and the jumper string 9 of the inner corner side phase wire) are directly tied and hung on the jumper string hanging points of the first side phase wire of the side cross arm 4 at the corresponding side (at the moment, the jumper string 8 of the outer corner side phase wire and the jumper string 9 of the inner corner side phase wire are both set as I-shaped jumper strings);
two ends of the middle cross arm 3 are symmetrically connected with side cross arms 4 respectively, the upper plane of each side cross arm 4 is connected with a ground wire frame 5, and the two ground wire frames 5 are symmetrically arranged and are inclined outwards; the lengths of the side cross arms 4 on the two sides of the wine glass type crossing tower for crossing are consistent; the two jumper wire brackets 6 are symmetrically arranged at two sides of the side cross arm 4, so that the jumper wire brackets 6 do not occupy the space in the width direction of the wine glass type crossing tower for crossing provided by the embodiment, and the space occupied in the width direction of the wine glass type crossing tower for crossing provided by the embodiment is consistent with that of a conventional wine glass type crossing tower;
in summary, the wine glass type crossing tower for crossing provided by the embodiment solves the problem that the existing large-angle wine glass type crossing tower occupies more space in the width direction compared with the conventional wine glass type tower, so that the selection of crossing points can be influenced by more width factors, and other subsequent peripheral construction operations can be limited more greatly; and because the components such as the middle cross arm, the side cross arm and the ground wire frame of the conventional large-angle wine glass type crossing tower cannot be used commonly, the components of the conventional large-angle wine glass type crossing tower need to be manufactured and processed independently, the universality of the components is reduced, and the production cost and the production period are increased.
2. By arranging the first middle phase wire tension string hanging point 12 and the second middle phase wire tension string hanging point 13, the tension strings 10 of the middle phase wires can be hung on the first middle phase wire tension string hanging point 12 when the rotation angle of the middle phase wires is 0-40 degrees, and the tension strings 10 of the middle phase wires can be hung on the second middle phase wire tension string hanging point 13 when the rotation angle of the middle phase wires is more than 40 degrees and not more than 90 degrees, so that the tension strings 10 of the middle phase wires with different rotation angles can be hung at proper positions on the middle cross arm 3.
3. Compared with the scheme of tying the jumper wires of the middle phase wires through two I-shaped jumper strings, the scheme of tying the jumper wires of the middle phase wires through two V-shaped jumper strings has better wire-tying effect on the jumper wires of the middle phase wires; the electric safety distance between the jumper wire of the medium-phase lead and the tower body can be better ensured.
4. The jumper wire brackets 6 are detachably and fixedly connected to the side cross arms 4, so that the jumper wire brackets 6 are not installed when the angles of the phase conductors are 0-40 degrees, and the integral construction and installation time of the wine glass type crossing tower for crossing is shortened.
The above is only a specific application example of the present utility model, and the protection scope of the present utility model is not limited at all, and the technical solution formed by adopting equivalent transformation or equivalent substitution falls within the protection scope of the present utility model.
Claims (10)
1. A wineglass type drilling tower for crossover, characterized in that: the ground wire rack is symmetrically arranged, and the two ground wire racks are outwards inclined, and the tail ends of the ground wire racks are provided with ground wire hanging points;
the lower parts of the two ends of the middle cross arm are fixedly connected with a crank arm respectively; the two crank arms are symmetrically arranged, the upper ends of the crank arms are fixedly connected with the middle cross arm, and the lower ends of the crank arms are fixedly connected with tower legs;
the lower part of the middle cross arm is also provided with a middle phase conductor tying and hanging unit, and one end of the side cross arm far away from the middle cross arm is provided with a side phase conductor tension-resisting string hanging point and a first side phase conductor jumper string hanging point;
two jumper brackets are symmetrically arranged on two sides of one end, far away from the middle cross arm, of one side cross arm, and a second side phase conductor jumper string hanging point is arranged on the lower surface of each jumper bracket.
2. The wine glass type of drilling tower for crossover according to claim 1, wherein: the middle phase conductor tying unit comprises a middle phase conductor tension string tying component for tying a tension string of the middle phase conductor and a middle phase conductor jumper string tying component for tying a jumper string of the middle phase conductor.
3. The wine glass type of drilling tower for crossover according to claim 2, wherein: the middle phase conductor tension string hanging component comprises a first middle phase conductor tension string hanging point and a second middle phase conductor tension string hanging point which are sequentially arranged at intervals from the middle part of the lower surface of the middle cross arm to one side of the lower surface of the middle cross arm, which is close to the jumper bracket.
4. The wine glass type of drilling tower for crossover according to claim 2, wherein: the middle phase wire jumper string hanging component comprises two first middle phase wire jumper string hanging points, the two first middle phase wire jumper string hanging points are all arranged in the middle of the lower surface of the middle cross arm, and the two first middle phase wire jumper string hanging points are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm.
5. The wine glass type of drilling tower for crossover according to claim 2, wherein: the medium phase conductor tying and hanging unit comprises two medium phase conductor jumper wire string tying and hanging components; the two middle phase wire jumper string hanging components are arranged at intervals along the direction perpendicular to the central axis of the middle cross arm, and each middle phase wire jumper string hanging component comprises a second middle phase wire jumper string hanging point which is symmetrically arranged on the lower surface of the middle cross arm.
6. The wine glass type of drilling tower for crossover according to claim 1, wherein: the jumper string hanging point of the first side phase lead is used for hanging the jumper string of the side phase lead with the corner angle of 0-40 degrees.
7. The wine glass type of drilling tower for crossover according to claim 1, wherein: the jumper string hanging point of the second side phase lead is used for hanging the jumper string of the side phase lead with the external angle of the corner angle being larger than 40 degrees and not larger than 90 degrees.
8. The wine glass type of drilling tower for crossover according to claim 7, wherein: the jumper wire string hanging points of the first side phase wires on the side cross arm without the jumper wire support are used for hanging jumper wire strings of the inner angle side phase wires with the corner angles larger than 40 degrees and not larger than 90 degrees.
9. The wine glass type of drilling tower for crossover according to claim 1, wherein: the jumper wire supports are detachably and fixedly connected to the side cross arms.
10. The wine glass type of drilling tower for crossover according to claim 1, wherein: the jumper wire supports are columnar and are arranged horizontally perpendicular to the side cross arms, and the first end parts of the jumper wire supports are fixedly connected to the side cross arms; and the jumper wire string hanging points of the second side phase lead are all arranged on the lower side of the second end part of the jumper wire support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320573267.4U CN219672288U (en) | 2023-03-22 | 2023-03-22 | Wine glass type crossing tower for crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320573267.4U CN219672288U (en) | 2023-03-22 | 2023-03-22 | Wine glass type crossing tower for crossing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219672288U true CN219672288U (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320573267.4U Active CN219672288U (en) | 2023-03-22 | 2023-03-22 | Wine glass type crossing tower for crossing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219672288U (en) |
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2023
- 2023-03-22 CN CN202320573267.4U patent/CN219672288U/en active Active
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Address after: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee after: Hubei Electric Power Planning, Design and Research Institute Co.,Ltd. Address before: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee before: POWERCHINA HUBEI ELECTRIC ENGINEERING Corp.,Ltd. |
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