CN209817551U - Single-loop penetrating and spanning integrated transmission tower - Google Patents
Single-loop penetrating and spanning integrated transmission tower Download PDFInfo
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- CN209817551U CN209817551U CN201821939532.1U CN201821939532U CN209817551U CN 209817551 U CN209817551 U CN 209817551U CN 201821939532 U CN201821939532 U CN 201821939532U CN 209817551 U CN209817551 U CN 209817551U
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Abstract
The utility model discloses a single loop wears to stride integral type transmission tower belongs to the electric power facility field, its well lower part at the body of the tower sets up lower side cross arm, top cross arm is set up at the top of body of the tower, and with top cross arm, lower side cross arm is as the incoming end and the output of wire respectively, through locating the body of the tower with incoming end and output branch, two lower places make incoming end and output produce the difference in height that can stride across other circuits on the body of the tower, combine insulator and hard formula wire jumper etc. to lead the ground wire and draw down or draw up, thereby realize that one side stridees across the function that one side crossed, solve the crossing barrier that engineering circuit meets among the prior art.
Description
Technical Field
The utility model belongs to the transmission tower field, specifically say that a single loop wears to stride integral type transmission tower.
Background
Transmission towers used for high-voltage transmission have various types, and are classified into a tangent tower, a crossing tower (commonly called a large crossing tower), a tension tower, a corner tower and the like according to functions. The different tower types are designed according to the requirements of specific engineering lines. When the engineering line is crossed with other engineering lines or a path crossing rivers, high-speed rail tracks and the like, a crossing tower is adopted.
When the engineering line needs to pass through a high-voltage line (for example, 500 KV) and then cross another low-voltage line (for example, 110 KV), the following two solutions are generally adopted: raising a high-voltage line (for example, 500 KV), and then setting crossing towers higher than other engineering lines on two sides of other engineering lines occupying a path, as shown in fig. 1; or both the crossing tower and the traversing tower may be placed in a very short span, with the traversing tower first pulling the line low to bypass the high-line (e.g., 500 KV) and then crossing through the crossing tower, as shown in fig. 2.
As can be seen from the figure, the scheme of increasing 500kV lines needs to increase two base towers adjacent to the engineering lines, and the manufacturing cost is high. And by adopting the crossing tower scheme, a base crossing tower needs to be erected near the crossing tower, so that the investment is increased, and meanwhile, because the distance between the crossing tower and the crossing tower is too close, the electrical distance of a ground wire is not easy to control, and potential safety hazards are generated.
Based on this, the present application is proposed.
SUMMERY OF THE UTILITY MODEL
For solving among the prior art engineering line need stride across low pressure circuit respectively in very close distance and pass through the problem that conventional engineering scheme cost is high or have the potential safety hazard when high-tension line, the utility model provides a single loop transmission tower that one side strideed across one side and pass through to satisfy simultaneously need to pass through, stride across (the utility model discloses will stride across higher circuit and be called to cross through, will pass lower circuit and be called to stride across the engineering line construction needs of other engineering lines of co-altitude not.
In order to achieve the above object, the utility model provides a transmission tower: the utility model provides a single circuit wears to stride integral type transmission tower, includes body of the tower, tower leg, and the top left and right sides of body of the tower symmetry respectively is equipped with an upper cross arm, and the left and right sides below the body of the tower apart from upper cross arm certain distance is the symmetry respectively and is equipped with lower cross arm. The left side and the right side of the top of the tower body are respectively and symmetrically provided with a ground wire support at a certain distance from the upper part of the lower cross arm. The tower body of the front side and the rear side between the two upper side cross arms is provided with a middle phase line hanging point, and the outer end points of the front side/the rear side of the two upper side cross arms are provided with phase line hanging points. And phase line hanging points are arranged on the tower body at the rear side/front side between the two lower cross arms, and phase line hanging points are arranged on the outer end points at the front side and the rear side of the two lower cross arms. The middle phase line hanging points on the front side and the rear side of the upper cross arm are connected through a jumper wire, and the middle phase line hanging points on the front side and the rear side of the lower cross arm are connected through a jumper wire. The distance between the upper cross arm and the lower cross arm is preferably 18-22 meters, and the distance between the lower wire support and the lower cross arm is preferably 5-7.5 meters.
Through the structure, when any one of the wires on the two sides is connected to the lower cross arm on one side, the wire is connected to the horizontal insulator and is connected with the hanging point of the upper cross arm opposite to the upper side of the horizontal insulator, and finally the wire is led out and connected to the spanning tower in a pulling mode, so that the wires on the two sides are lifted or lowered, and the wires are transposed from the current side to the other side to be connected.
In the structure, the upper cross arm is the side cross arm arranged at the top of the tower body and near the top of the tower body, the lower cross arm is the side cross arm arranged at the middle part or the middle lower part of the tower body, and the purpose of the side cross arm is that the cross arm arranged on the side edge of the tower body and used for hanging the conducting wire. The middle phase line hanging point is a connecting hole or other common connecting structures of insulators or other hardware fittings on the tower body, which are required to be connected or supported with the middle conductor in the three phase lines when the conductor passes through. The phase line hanging point is a connecting hole or other common connecting structures of insulators or other hardware fittings on the tower body, which are required to be connected or supported with the phase line hanging point when other two-phase wires positioned on the outer side are connected with the side cross arm.
In the above structure, in order to keep the structure stable and the stress uniform, the plane of the upper cross arm and the plane of the lower cross arm are preferably parallel. The middle phase line hanging point between the upper cross arms and the middle phase line hanging point between the lower cross arms are on different sides, so that the electrical safety is ensured, and the structural stability is kept.
The utility model discloses further set up as follows: in order to reduce the indexes of the tower materials and ensure the stable structure, the upper cross arm and the lower cross arm are included angles or triangular cross arms which are horizontally arranged.
Preferably, the upper side of the lower side cross arm is set to be horizontal, and further, the lower side of the upper side cross arm is set to be horizontal.
The utility model discloses further set up as follows: in order to assist the guiding action of the upper-section lead line (lead the leads at two sides of the connection to the other side and isolate the lead from the tower body), insulators for connecting the leads are arranged on the middle phase line hanging point and the phase line hanging point.
The insulator can cross over and outdated from the below of lower side cross arm at the wire of both sides, carries out certain fixed and support to the wire of both sides, avoids it to cross the in-process of top and the contact of tower body, further ensures electrical safety.
Preferably, the middle phase line hanging point is positioned at the highest position between the upper cross arms at the two sides/between the lower cross arms at the two sides.
The utility model discloses further set up as follows: in order to ensure that the middle phase line can keep a certain electrical safety distance with the tower body when being guided to the other side, at least one of a middle phase line conductor bracket and an insulator which are protruded out of the surface of the tower body is arranged in the middle of the tower body between the two upper side cross arms.
The utility model discloses further set up as follows: in order to ensure electrical safety, the insulators of the phase line hanging points of the lower cross arm of the rear side/front side tower body which is not provided with the phase line hanging points are arranged horizontally or upwards, and the insulators which are arranged downwards or horizontally are arranged at the outer end points/phase line hanging points of the side of the upper cross arm which is provided with the phase line hanging points and is at the same side of the insulators.
The utility model discloses further set up as follows: in order to guide the connected middle phase line to the other side and isolate the middle phase line from the tower body, at least one insulator or a protruding bracket for supporting a jumper wire is arranged on the top surface or the front side edge and the rear side edge of the top of the tower body. So, the neutral conductor can be led to the other side from one side of the incoming line connection of the neutral conductor through the neutral conductor bracket or another horizontal insulator, and the contact with the conductors on the two sides is avoided, so that the electrical safety is ensured.
For satisfying the use of different occasions, the utility model discloses further set up as follows: the upper cross arms on the two sides or the lower cross arms on the two sides are positioned in the same plane.
Or the upper cross arms on two sides are positioned in the same plane, the lower cross arms on two sides are positioned in the other plane, and the two planes are intersected, but the positions of the upper cross arms on two sides and the lower cross arms on two sides need to stabilize the whole tower body.
Or, the planes of the upper cross arms on the two sides are intersected, and the planes of the lower constant cross arms on the two sides are intersected, but the positions of the upper cross arms on the two sides and the lower cross arms on the two sides are required to stabilize the whole tower body.
In order to ensure safe and normal lead wires under the condition that a larger distance exists between the planes of the upper cross arm and the lower cross arm, a convex middle support or insulator is arranged on the tower body between the upper cross arm and the lower cross arm, and a transfer hanging point is arranged on the middle support or insulator. The jumper wire that derives from last cross arm department connects to the transfer and hangs the point and carry out the transfer earlier the back, is connected to lower cross arm department again.
The utility model discloses technical effect as follows: the utility model discloses to stride across the tower and pass through the tower and combine on a tower to the cross arm design that will pass through, stride across is the height of difference, combines insulator and hard formula wire jumper etc. to lead the ground wire and draws down or draw up, thereby realizes that one side stridees across the function that one side crossed, solves the crossing barrier that engineering line meets among the prior art.
And, the utility model discloses the body of the tower structure adopts the design of complete symmetry, still further makes the wire (go up the part of being connected between cross arm and the lower cross arm) design the different route of drawing up or drawing down (both sides wire draw up or draw down from the side of one side, well line wire draws up or draws down from the middle part of offside), connects from body of the tower structure to wire, fully ensures that the tower head structure atress is even.
Drawings
FIG. 1 is a schematic view of a tower crossing scheme according to an embodiment of the present invention
Fig. 2 is a schematic diagram of crossing-wearing according to an embodiment of the present invention.
FIG. 3 is a schematic view of the whole embodiment of the present invention
Fig. 4 is a rear view of the embodiment of the present invention.
FIG. 5 is a schematic left view of an embodiment of the present invention
Shown in the figure: 1-a first upper ground wire support, 2-a second upper ground wire support, 3-a first upper cross arm, 4-a second upper cross arm, 5-a tower body, 6-a first lower ground wire support, 7-a second lower ground wire support, 8-a first lower cross arm, 9-a second lower cross arm, 10-a tower leg, 11-a middle phase wire support, 12-a middle phase wire, 13-a ground wire, 14-a side phase wire;
302. 402-upper conductor insulator, 501-upper middle phase line horizontal insulator I, 502-lower middle phase line horizontal insulator, 801, 901-lower horizontal insulator I, 802-left conductor support, 803, 903-lower horizontal insulator II, 804-left vertical insulator 902-right conductor support, 904-right vertical insulator, 1101-upper middle phase line horizontal insulator II, 1102-upper middle phase line vertical insulator.
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 1
As shown in fig. 1, the present embodiment includes a tower leg 10, a tower body 5, a first upper cross arm 3, a second upper cross arm 4, a first upper ground wire support 1, a second upper ground wire support 2, a first lower cross arm 8, a second lower cross arm 9, a first lower ground wire support 6, and a second lower ground wire support 7. First upper cross arm 3, second upper cross arm 4 the same structure, respectively the symmetry locate the left and right both sides at the top of body of the tower 5, first lower cross arm 8, second lower cross arm 9 the same structure, respectively the symmetry locate the left and right both sides of body of the tower 5 under in, it is from upper cross arm 18 ~ 22 meters.
First upper cross arm 3, second upper cross arm 4 are the contained angle or the triangle-shaped cross arm of level setting, and its downside is the level limit. The first lower side cross arm 8 and the second lower side cross arm 9 are also included angles or triangular cross arms which are horizontally arranged, and the upper side edges of the first lower side cross arm and the second lower side cross arm are horizontal edges.
And a first upper ground wire support 1 and a second upper ground wire support 2 which are inclined to the top of the tower body 5 are arranged between the first upper cross arm 3 and the second upper cross arm 4. The inner side inclination angle of the first upper ground wire support 1 and the second upper ground wire support 2 is smaller than the outer side inclination angle. First upper ground wire support 1 is the steel framework of contained angle shape, and its inboard side is connected with the left side end at body of the tower 5 top, and its outside side is connected to the horizontal lower side of first upper cross arm 3. The second upper ground wire support 2 has the same structure as the first upper ground wire support 1 and is arranged symmetrically with the first upper ground wire support 1.
And a first lower ground wire support 6 and a second lower ground wire support 7 are arranged above the first lower cross arm 8 and the second lower cross arm 9 and 5-7.5 meters away from the first lower cross arm and the second lower cross arm. The first lower ground wire support 6 and the second lower ground wire support 7 are horizontally arranged steel frameworks with included angles, and the upper side edges of the steel frameworks are horizontal edges. The upper side edge and the lower side edge of the first lower ground wire bracket 6 are both fixedly connected with the tower body 5. The second lower ground wire support 7 has the same structure as the first lower ground wire support 6, and is symmetrically distributed on the left and right sides of the tower body 5 with the first lower ground wire support 6.
The highest point on any side of the tower body 5 between the first upper cross arm 3 and the second upper cross arm 4 and between the first lower cross arm 8 and the second lower cross arm 9 is respectively provided with a first middle phase line hanging point, a second middle phase line hanging point is provided with a first middle phase line horizontal insulator 501 on the first phase line hanging point, and a lower middle phase line horizontal insulator 502 is provided on the second middle phase line hanging point. In order to support the reasonable wiring of the neutral conductor, the middle part of the top of the tower body 5 is provided with a neutral conductor bracket 11 protruding out of the surface of the tower body 5 so as to ensure the safe distance between the neutral conductor and the tower body 5. The middle phase line lead support 11 is an included angle or triangular framework, is horizontally arranged or inclined to the longitudinal surface of the tower body 5, is connected with the middle phase line, is used for supporting and limiting, and can protrude out of the tower body 5 to enable the middle phase line to be separated from the tower body 5 by a certain distance. The end of the middle phase wire lead bracket 11 is provided with an upper middle phase wire horizontal insulator II 1101 for connecting with a middle phase wire.
The upper middle wire horizontal insulator one 501 is located on a different side from the middle wire lead frame 11 — in this embodiment, the upper middle wire horizontal insulator one 501 is located on the front side, and the middle wire lead frame 11 is located on the back side. The lower center line horizontal insulator 502 is preferably located on the same side as the upper center line horizontal insulator 1101-in this embodiment, the center line conductor support 11 is located on the back side, and the lower center line horizontal insulator 502 is also located on the back side. The lower middle phase line horizontal insulators 502 can be additionally arranged to be more than 2 according to the situation, and the middle phase line conductor supports 11 are distributed on the tower body between the lower middle phase line horizontal insulators 502 at intervals.
Because the upper middle phase line horizontal insulator two 502 connected with the lead is not on the same side as the upper middle phase line horizontal insulator two 1101 (i.e. the incoming end and the output end of the middle phase line are not on the same side), 2 upper middle phase line vertical insulators 1102 are arranged on the top of the tower body 5 between the front side and the rear side of the embodiment, and the upper middle phase line vertical insulators 1102 are upward insulators. Thus, the middle phase line can be guided to the other side from one side (generally from the lower cross arm) of the access through the middle phase line conductor bracket 11 and the upper middle phase line vertical insulator 1102 to be connected with the upper middle phase line horizontal insulator 501, so that the contact with the conductors on two sides and the tower body can be avoided, the electrical safety is kept, and the stress on the front side and the back side of the tower body 5 can be balanced.
In order to realize the connection between the input end and the output end of the phase lines on the two sides; the front and rear ends of the first and second lower cross arms 8 and 9 (i.e., the outermost end points of the front and rear upper sides, also referred to as outer end points) are provided with a forward left wire support 802 and a forward right wire support 902, and the forward lower horizontal insulator two 803 and the forward lower horizontal insulator two 903 are provided on the left wire support 802 and the forward right wire support 902, respectively. And the rear end parts of the first lower cross arm 8 and the second lower cross arm 9 which are opposite to the second lower horizontal insulator 803/903 are respectively provided with a first lower horizontal insulator 801 and a first lower horizontal insulator 901 which are used for connecting the side phase line 14.
And the bottoms of the front and rear ends of the first and second lower cross arms 8 and 9 are also provided with downward left and right vertical insulators 804 and 904 for connecting jumpers. The left vertical insulator 804 and the right vertical insulator 904 are insulators which are vertically downward or vertically arranged as a whole, and the horizontal insulator is an insulator which is horizontally arranged as a whole.
Corresponding to the second lower horizontal insulator 803 and the second lower horizontal insulator 903, the front end portions of the first upper cross arm 3 and the second upper cross arm 4 are respectively provided with an upper lead insulator 302 and an upper lead insulator 402, and the second lower horizontal insulator 803 and the second lower horizontal insulator 903 are respectively connected with the upper lead insulator 302 and the upper lead insulator 402 through leads to realize upper and lower communication.
The function of above-mentioned structure is to lead the both sides wire of connecting from the incoming end to the output and guarantee electric safety at the guide in-process: when the lead at the access end is connected and accessed to the first lower cross arm 8, the lower horizontal insulator 801 on the second lower cross arm 9, the lower middle lead horizontal insulator 502 and the lower horizontal insulator 901, the side lead passes through the left vertical insulator 804/the right vertical insulator 904, the lower horizontal insulator two 803/903 to the first upper cross arm 3, the upper lead insulator 302 on the second upper cross arm 4 and the upper lead insulator 402 in sequence, so that the crossing of the side lead is realized; and the middle phase line sequentially passes through the upper middle phase line horizontal insulator II 1101, the upper middle phase line vertical insulator 1102 and the upper middle phase line horizontal insulator I501, so that the crossing of the middle phase line is realized. The upper lead insulator 302, the upper middle wire horizontal insulator I501 and the upper lead insulator 402 are output ends, leads are led out from the output ends and are finally led out to a crossing tower, so that the leads on two sides can be lifted, and the leads are transposed from the current side to the other side to be connected.
The above-mentioned access process may be reversed, and the access is performed from the upper cross arm and then derived from the lower cross arm, and the connection wires are actually the same, and only the current flows in different directions, which is not described again.
Between the above-mentioned insulator, also can adopt the wire jumper to realize the electricity and connect, so, during the wiring only need with the phase line of input side with be connected as the insulator of incoming end, the phase line of output side with be connected as the insulator of output can.
In this embodiment, the guiding paths of the input ends and the output ends of the neutral conductor and the two side conductors are arranged on two opposite sides, so that safety accidents caused by too short distance between the neutral conductor and the two side conductors in the guiding paths are avoided, and the structure can be further stabilized by balancing the tension of the conductors borne by two sides of the tower body 5.
Example 2
The present embodiment is different from embodiment 1 in that: the middle phase line bracket at the top of the tower body 5 is replaced by another horizontal insulator, so that the adverse effect caused by the asymmetric structure of the tower body 5 due to the establishment of the middle phase line conductor 12 bracket 11 is reduced.
Example 3
The difference between the embodiment and embodiment 1 is that the first upper cross arm 3 and the second upper cross arm 4 are both located in a first plane, the first plane intersects with a vertical plane of the tower body 5 by 0 ~ 45 degrees, the second lower cross arm 9 and the first lower cross arm 8 are both located in a second plane, the second plane intersects with the vertical plane of the tower body 5 by 0 ~ 45 degrees, and the first plane intersects with the second plane by 0 ~ 90 degrees.
Example 4
The difference between this embodiment and embodiment 1 is that the first plane of first upper cross arm 3 intersects the second plane of second upper cross arm 4 by 0 ~ 180 ° (excluding 0 ° and 180 °), and the third plane of first lower cross arm 8 intersects the third plane of second lower cross arm 9 by 0 ~ 180 ° (excluding 0 ° and 180 °).
In this embodiment, the first plane and the second plane are symmetrically disposed, and the third plane and the fourth plane are symmetrically disposed.
Example 5
This embodiment is different from embodiment 4 in that: the first plane and the fourth plane are preferably the same plane, and the second plane and the third plane are preferably the same plane.
Based on the foregoing, the utility model provides a transmission tower that one side passes through, one side stridees across, it sets up lower cross arm through the well lower part at body of the tower 5, top cross arm is set up at body of the tower 5, and with upper cross arm, the incoming end and the output of wire are regarded as respectively to lower cross arm, through locating body of the tower 5 with the output branch, two lower places make incoming end and output produce the difference in height that can stride across other circuits on body of the tower 5, combine insulator and hard formula wire jumper etc. to lead ground wire 13 and draw down or draw up, thereby realize one side and stride across the function that one side passed through, solve the obstacle of strideing across that engineering circuit meets among the prior art.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (10)
1. The utility model provides a single loop wears to stride integral type transmission tower, includes body of the tower and tower leg, its characterized in that: the left side and the right side of the top of the tower body are respectively symmetrically provided with an upper cross arm, and the left side and the right side below the tower body which are at a certain distance from the upper cross arm are respectively symmetrically provided with a lower cross arm; the left side and the right side of the top of the tower body are respectively and symmetrically provided with a ground wire bracket at a certain distance from the upper part of the lower cross arm; a middle phase line hanging point is arranged on the tower body at the front side and the rear side between the two upper side cross arms, and a phase line hanging point is arranged at the outer end point of the front side/the outer end point of the rear side of the two upper side cross arms; a middle phase line hanging point is arranged on the tower body at the rear side/front side between the two lower cross arms, and phase line hanging points are arranged at the outer end points of the front side and the rear side of the two lower cross arms; the middle phase line hanging points on the front side and the rear side of the upper cross arm are conducted through a jumper, and the middle phase line hanging points on the front side and the rear side of the lower cross arm are conducted through a jumper; the distance between the upper cross arm and the lower cross arm is 18-22 m, and the distance between the lower wire support and the lower cross arm is 5-7.5 m.
2. The single-loop span integrated transmission tower of claim 1, wherein: the upper cross arm and the lower cross arm are horizontally arranged included angles or triangular cross arms; the upper side of the lower cross arm is horizontally arranged, and the lower side of the upper cross arm is horizontally arranged.
3. The single-loop pass-span integrated transmission tower of claim 1 or 2, wherein: insulators used for connecting wires are arranged on the middle phase wire hanging point and the phase wire hanging point; the suspension point of the middle phase line is positioned at the highest position between the upper cross arms at two sides/between the lower cross arms at two sides.
4. The single-loop pass-span integrated transmission tower of claim 1 or 2, wherein: at least one of a middle phase line lead bracket and an insulator which are protruded out of the surface of the tower body is arranged in the middle of the tower body between the two upper side cross arms.
5. The single-loop span integrated transmission tower of claim 4, wherein: the insulator of the phase line hanging point of the lower cross arm of the rear side/front side tower body which is not provided with the phase line hanging point is arranged horizontally or upwards, and the insulator of the outer end point/phase line hanging point of the side of the upper cross arm which is provided with the phase line hanging point and is arranged at the same side of the insulator is arranged downwards or horizontally.
6. The single-loop span integrated transmission tower of claim 4, wherein: at least one insulator or a protruding bracket for supporting a jumper is arranged on the top surface or the front side edge and the rear side edge of the top of the tower body.
7. The single-loop pass-span integrated transmission tower as recited in any one of claims 1, 5 and 6, wherein: the upper cross arms on the two sides or the lower cross arms on the two sides are positioned in the same plane.
8. The single-loop pass-span integrated transmission tower as recited in any one of claims 1, 5 and 6, wherein: the upper cross arms on two sides are positioned in the same plane, the lower cross arms on two sides are positioned in the other plane, the two planes are intersected, and the upper cross arms on two sides and the lower cross arms on two sides are arranged on the position of the tower body which can enable the whole tower body to be stable.
9. The single-loop pass-span integrated transmission tower as recited in any one of claims 1, 5 and 6, wherein: the planes of the upper cross arms on the two sides are intersected, and the planes of the lower constant cross arms on the two sides are intersected.
10. The single-loop span integrated transmission tower of claim 1, wherein: and a convex middle support or insulator is arranged on the tower body between the upper cross arm and the lower cross arm, and a transfer hanging point is arranged on the middle support or insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939532.1U CN209817551U (en) | 2018-11-23 | 2018-11-23 | Single-loop penetrating and spanning integrated transmission tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939532.1U CN209817551U (en) | 2018-11-23 | 2018-11-23 | Single-loop penetrating and spanning integrated transmission tower |
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| CN209817551U true CN209817551U (en) | 2019-12-20 |
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| CN201821939532.1U Active CN209817551U (en) | 2018-11-23 | 2018-11-23 | Single-loop penetrating and spanning integrated transmission tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441195A (en) * | 2018-11-23 | 2019-03-08 | 绍兴大明电力设计院有限公司 | Single loop wears across integral type transmission tower |
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2018
- 2018-11-23 CN CN201821939532.1U patent/CN209817551U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441195A (en) * | 2018-11-23 | 2019-03-08 | 绍兴大明电力设计院有限公司 | Single loop wears across integral type transmission tower |
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