CN221102989U - Four become two strain clamp - Google Patents
Four become two strain clamp Download PDFInfo
- Publication number
- CN221102989U CN221102989U CN202322615490.3U CN202322615490U CN221102989U CN 221102989 U CN221102989 U CN 221102989U CN 202322615490 U CN202322615490 U CN 202322615490U CN 221102989 U CN221102989 U CN 221102989U
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- CN
- China
- Prior art keywords
- drainage
- wire
- jumper
- aluminum pipe
- plate
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses a four-change two strain clamp, which belongs to the technical field of electric power system hardware fittings and comprises a hollow tubular aluminum pipe, a steel anchor body fixedly connected with one end of the aluminum pipe, a drainage plate with one end sleeved outside the aluminum pipe, two jumper plates with one end fixedly arranged at the lower ends of the drainage plates and two drainage tubes respectively arranged at the lower ends of the two jumper plates; the drainage plate is sleeved at one end of an aluminum pipe with a steel anchor body inserted in the drainage plate; the other end of the drainage plate is of a double-plate type structure, a groove is formed between the double plates, and the upper ends of the two jumper plates are inserted into the groove of the drainage plate and fixedly connected through bolts; a first lead is arranged at the other end of the aluminum pipe; and a second wire and a third wire are respectively arranged in the two drainage tubes. The utility model can conveniently connect the four-split conductor with the double-split conductor, and has wide application prospect when the ultra-high voltage line is depressurized into a high voltage line.
Description
Technical Field
The utility model relates to the technical field of electric power system hardware fittings, in particular to a four-change two strain clamp which is suitable for a line connected by four split conductors and double split conductors.
Background
In the power transmission line, if the single wire cannot meet the requirements of load current, corona, radio interference and the like, split wires are adopted economically. In China, a common 500kV line adopts four split conductors, and a 220kV line adopts double split conductors. With the continued perfection of power grids, some of the early power lines have been shutdown or replaced with other power lines. Under the large environment of intensive, reasonable and effective land utilization, 500kV lines are reduced to 220kV lines, reasonable and effective utilization of power lines becomes an option for future development, and four-split conductors and double-split conductors are required to be connected.
Therefore, there is a need to develop a four-to-two strain clamp to solve the above problems.
Disclosure of utility model
The utility model aims to solve the technical problem of providing the four-change two-strain clamp, which can conveniently connect a four-split wire with a double-split wire and has wide application prospect when an ultrahigh voltage line is depressurized into a high voltage line.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a four-change two strain clamp comprises a hollow tubular aluminum pipe, a steel anchor body fixedly connected with one end of the aluminum pipe, a drainage plate with one end sleeved outside the aluminum pipe, two jumper plates with one end fixedly arranged at the lower ends of the drainage plates, and two drainage tubes respectively arranged at the lower ends of the two jumper plates; the drainage plate is sleeved at one end of an aluminum pipe with a steel anchor body inserted in the drainage plate; the other end of the drainage plate is of a double-plate type structure, a groove is formed between the double plates, and the upper ends of the two jumper plates are inserted into the groove of the drainage plate and fixedly connected through bolts; a first lead is arranged at the other end of the aluminum pipe; and a second wire and a third wire are respectively arranged in the two drainage tubes.
The technical scheme of the utility model is further improved as follows: one end of the steel anchor body is a hanging hole capable of being connected with the tension insulator, the middle of the steel anchor body is a solid part, and the other end of the steel anchor body is a hollow pipe; the hollow tube is inserted together with the solid portion into one end of an aluminum tube which is also hollow tubular.
The technical scheme of the utility model is further improved as follows: one end of the drainage plate is hollow and tubular, and is welded with the aluminum pipe after being sleeved into the aluminum pipe.
The technical scheme of the utility model is further improved as follows: one end of the jumper wire plate is matched with the groove of the drainage plate and inserted into the drainage plate, and the other end of the jumper wire plate is connected with the drainage tube.
The technical scheme of the utility model is further improved as follows: the central line of the jumper board coincides with the axial line of the drainage tube.
The technical scheme of the utility model is further improved as follows: the central line of the jumper board forms a certain angle alpha with the axial line of the drainage tube.
The technical scheme of the utility model is further improved as follows: the drainage tube is hollow, the drainage tube is sleeved into the second wire or the third wire, and the combination of the drainage tube and the second wire or the third wire is realized through pressurization.
The technical scheme of the utility model is further improved as follows: the second wire and the third wire are jumper wires.
The technical scheme of the utility model is further improved as follows: the first wire is an overhead transmission line.
The technical scheme of the utility model is further improved as follows: the bolt adopts an anti-loose double-nut bolt.
By adopting the technical scheme, the utility model has the following technical progress:
According to the utility model, one drainage plate is connected with two jumper plates by improving the drainage plates, so that a two-split wire is conveniently changed into one wire, and a four-split wire is conveniently changed into a two-split wire; the drainage plate adopts a double plate type, so that the electrifying area between the drainage plate and the jumper wire plate is increased, and the current-carrying capacity of the four-change two strain clamps is further increased; the bolts are loose-proof by adopting double nuts, so that the operation and maintenance safety of the line is improved, and the potential safety hazard is reduced.
Drawings
For a clearer description of embodiments of the utility model or of the solutions of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art;
FIG. 1 is a schematic diagram of a four-change-two strain clamp structure in an embodiment of the utility model;
FIG. 2 is a schematic view of the angles of the jumper and drainage plates according to an embodiment of the present utility model;
FIG. 3 is a second schematic view of the angles of the jumper and drainage plates in an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a four-way strain clamp application in accordance with an embodiment of the present utility model;
Wherein, 1, aluminum tube; 2. a steel anchor body; 3. a drainage plate; 4. a jumper board; 401. a center line; 5. a drainage tube; 501. an axial lead; 6. a bolt; 7. double split conductors of overhead transmission lines; 8. a fourth split jumper; 9. overhead transmission lines are four split conductors.
Detailed Description
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present utility model and in the foregoing figures, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
Furthermore, in the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In addition, the terms "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a number" means at least two, for example, two, three, etc., unless explicitly specified otherwise.
The utility model is described in further detail below with reference to the attached drawings and examples:
1-3, the four-change two strain clamp comprises a hollow tubular aluminum pipe 1, a steel anchor body 2 fixedly connected with one end of the aluminum pipe 1, a drainage plate 3 with one end sleeved outside the aluminum pipe 1, two jumper plates 4 with one end fixedly arranged at the lower end of the drainage plate 3, and two drainage tubes 5 respectively arranged at the lower ends of the two jumper plates 4; the drainage plate 3 is sleeved at one end of an aluminum pipe 1 in which a steel anchor body 2 is inserted; the other end of the drainage plate 3 is of a double-plate structure, a groove is formed between the double plates, and the upper ends of the two jumper plates 4 are inserted into the groove of the drainage plate 3 and fixedly connected through bolts 6; the other end of the aluminum pipe 1 is provided with a first lead; the two drainage tubes 5 are respectively provided with a second wire and a third wire.
Further, one end of the steel anchor body 2 is a hanging space which can be connected with the tension insulator, the middle is a section of solid part, and the other end is a hollow pipe. The hollow tube together with the solid portion can be inserted into an aluminum tube 1 which is also hollow tubular.
Furthermore, one end of the drainage plate 3 is hollow and tubular, so that the drainage plate is welded with the aluminum pipe 1 after being sleeved into the aluminum pipe 1, and the other end of the drainage plate 3 is double-plate type and is connected with the two jumper plates 4 through bolts 6. The drainage plate 3 adopts double plates, so that the electrifying area between the drainage plate 3 and the jumper wire plate 4 is increased, and the current-carrying capacity of the four-change two strain clamps is further increased. One drainage plate 3 is connected with two jumper plates 4, so that a two-split wire is conveniently changed into one wire, and a four-split wire is conveniently changed into a two-split wire.
Further, one end of the jumper wire plate 4 is matched with the groove of the drainage plate 3 and inserted into the drainage plate 3, and the other end is connected with the drainage tube 5. To meet various needs, the centerline 401 of the jumper plate 4 and the axial line 501 of the drainage tube 5 may coincide (see fig. 2) or be at an angle α, such as α is 30 ° (see fig. 3), and those skilled in the art may choose according to practical situations.
In practical application, most overhead transmission lines are steel-cored aluminum stranded wires. During construction, a steel core of an overhead transmission line passes through the aluminum pipe 1, the steel core is sleeved into a hollow pipe in the steel anchor body 2, then the hollow pipe in the steel anchor body 2 is pressurized to be in pressure connection with the steel core, then the hollow pipe of the steel anchor body 2 and a solid part are inserted into the aluminum pipe 1, and then the contact part of the aluminum pipe 1 and the steel anchor body 2 is pressurized to form clamping combination of the steel anchor body 2 and the aluminum pipe 1. In addition, the pipe wall of the overhead transmission line, which is in contact with the aluminum pipe 1 of the four-change two strain clamp, is pressurized, so that the combination of the overhead transmission line and the aluminum pipe 1 of the strain clamp is realized.
Furthermore, the jumper plate 4 is inserted into the groove of the drainage plate 3, the drainage plate 3 is of double-plate type, and four bolts 6 are used for connecting the jumper plate 4 with the drainage plate 3. The bolts 6 are double-nut bolts to prevent loosening, so that the operation and maintenance safety of the line is improved, and the potential safety hazard is reduced.
Further, a drainage tube 5 is arranged at the bottom end of the jumper wire plate 4, the drainage tube 5 is hollow, the drainage tube 5 is sleeved into the jumper wire, and the combination of the drainage tube 5 and the jumper wire is realized through pressurization.
As shown in fig. 4, when the overhead transmission line normally operates, the current trend is from the double split conductors 7 of the overhead transmission line to the aluminum pipe 1 of the four-change two-strain clamp provided by the application, then reaches a jumper wire through the drainage plate 3, the jumper wire plate 4 and the drainage pipe 5 of the four-change two-strain clamp provided by the application to become a four-split jumper 8, and then reaches the four split conductors 9 of the overhead transmission line through the normal strain clamp; or conversely, the overhead transmission line four-split conductor 9 is connected to the four-split jumper 8 through a normal strain clamp, and is connected to the overhead transmission line double-split conductor 7 through the drainage tube 5, the jumper plate 4, the drainage plate 3 and the aluminum tube 1 of the four-change two-strain clamp.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. The utility model provides a four become two strain clamp which characterized in that: the drainage device comprises a hollow tubular aluminum pipe (1), a steel anchor body (2) fixedly connected with one end of the aluminum pipe (1), a drainage plate (3) with one end sleeved outside the aluminum pipe (1), two jumper plates (4) with one end fixedly installed at the lower ends of the drainage plate (3) and two drainage tubes (5) respectively installed at the lower ends of the two jumper plates (4); the drainage plate (3) is sleeved at one end of an aluminum pipe (1) in which the steel anchor body (2) is inserted; the other end of the drainage plate (3) is of a double-plate structure, a groove is formed between the double plates, and the upper ends of the two jumper plates (4) are inserted into the groove of the drainage plate (3) and fixedly connected through bolts (6); the other end of the aluminum pipe (1) is provided with a first lead; the two drainage tubes (5) are respectively provided with a second wire and a third wire.
2. The four-way second strain clamp of claim 1, wherein: one end of the steel anchor body (2) is a hanging hollow capable of being connected with a tension insulator, the middle is a solid part, and the other end of the steel anchor body is a hollow pipe; the hollow tube is inserted together with the solid portion into one end of an aluminum tube (1) which is also hollow tubular.
3. The four-way second strain clamp of claim 1, wherein: one end of the drainage plate (3) is hollow and tubular, and is welded with the aluminum pipe (1) after being sleeved into the aluminum pipe (1).
4. The four-way second strain clamp of claim 1, wherein: one end of the jumper wire plate (4) is matched with the groove of the drainage plate (3) and inserted into the drainage plate (3), and the other end of the jumper wire plate is connected with the drainage tube (5).
5. The four-way second strain clamp of claim 4, wherein: the central line (401) of the jumper board (4) is overlapped with the axial line (501) of the drainage tube (5).
6. The four-way second strain clamp of claim 4, wherein: the central line (401) of the jumper board (4) and the axial line (501) of the drainage tube (5) form a certain angle alpha.
7. The four-way second strain clamp of claim 1, wherein: the drainage tube (5) is hollow, the drainage tube (5) is sleeved into the second wire or the third wire, and the combination of the drainage tube (5) and the second wire or the third wire is realized through pressurization.
8. The four-way second strain clamp of claim 1 or 7, wherein: the second wire and the third wire are jumper wires.
9. The four-way second strain clamp of claim 1, wherein: the first wire is an overhead transmission line.
10. The four-way second strain clamp of claim 1, wherein: the bolt (6) is a loose-proof double-nut bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322615490.3U CN221102989U (en) | 2023-09-26 | 2023-09-26 | Four become two strain clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322615490.3U CN221102989U (en) | 2023-09-26 | 2023-09-26 | Four become two strain clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221102989U true CN221102989U (en) | 2024-06-07 |
Family
ID=91309847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322615490.3U Active CN221102989U (en) | 2023-09-26 | 2023-09-26 | Four become two strain clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221102989U (en) |
-
2023
- 2023-09-26 CN CN202322615490.3U patent/CN221102989U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |