Strain string for high-altitude multi-split line
Through the multi-split structure and counterweight structure, the scattering problem of tension-resistant insulator strings caused by thermal expansion and contraction in high-altitude areas is solved, and the stable connection of multi-split lines is achieved.
Patent Information
- Application Number
- CN202422243347.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The existing tension-resistant insulator strings in high altitude areas are prone to scattering due to thermal expansion and contraction, and cannot effectively support the connection of multiple split lines.
A multi-split structure and connection structure are adopted, including connecting tailstocks, connecting triangle plates, connecting wire seats, counterweight seats, counterweight rods and counterweight blocks. Through the multi-split structure, one set of lines is split into two groups and supports a rotational connection at a certain angle. The counterweight structure keeps the lines tight.
In the case of thermal expansion and contraction, the tension-resistant insulator string remains tightened to prevent scattering and adapt to the connection needs of high-altitude multi-split lines.
Smart Images
Figure CN223051939U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of strain insulator strings, in particular to a strain string for high-altitude multi-split lines. Background Art
[0002] A strain insulator string is an important component in the process of erecting a transmission line, mainly including a ceramic strain insulator string and a composite strain insulator string. It can effectively isolate the live wire from the ground and keep each wire in its own position.
[0003] At present, the existing strain insulator strings are all used for the linear connection of a group of lines, and there is no strain insulator string for a one-to-two line. At the same time, since the strain insulator string is formed by buckling single insulators and can withstand a large tensile force, if the tensile force becomes smaller or disappears, the strain insulator string will scatter. Especially in the plateau area with large temperature difference within a day, the phenomenon of thermal expansion and contraction of the line is obvious, and the strain insulator string is more likely to scatter. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies in the prior art and propose a strain string for high-altitude multi-split lines.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A strain string for high-altitude multi-split lines includes: a number of strain insulator individuals, and the strain insulator individuals are connected end to end to form a strain insulator string. A connection structure is movably installed at one end of the strain insulator string, and a weight structure is installed below the connection structure. Three groups of the strain insulator strings are connected through a multi-split structure; the connection structure includes: a connection tail seat, a connection triangular plate, and a connection wire seat; the connection tail seat is sleeved on the head of the strain insulator string, the connection triangular plate is connected to the connection tail seat through a shaft, and the connection wire seat is connected to the connection triangular plate through a shaft.
[0007] The utility model is further provided that the weight structure includes: a weight seat, a weight rod, and a number of weight blocks; the weight seat is connected to the connection triangular plate through a shaft, the weight rod is installed on the lower wall surface of the weight seat, and the number of weight blocks are movably sleeved outside the weight rod.
[0008] The utility model is further provided that the multi-split structure includes: a split head, a split triangular plate, and two split tails; the split head is sleeved on the tail of the strain insulator string, the split triangular plate is installed on one side of the split head, and the two split tails are respectively installed on the other two tips of the split triangular plate.
[0009] The present utility model is further configured such that a spacer sleeve is provided between the plurality of the counterweight blocks.
[0010] The present utility model is further configured such that the splitting triangular plate is an isosceles right triangle.
[0011] The present utility model is further configured such that the splitting triangular plate is an isosceles triangle with a base angle of 30 degrees.
[0012] The beneficial effects of the present utility model are as follows: Through the multi-splitting structure, the present utility model can split an original set of lines into two sets of lines, and supports the angle between the two sets of lines to be 120 degrees and 90 degrees. And through the connecting structure, the linear connection between the strain insulator string and the line can be improved to a rotatable connection at a certain angle, so that when the line expands due to thermal expansion, the strain insulator string can still maintain a tightened state. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a strain string for high-altitude multi-split lines proposed by the present utility model;
[0014] Figure 2 FIG. 2 is a schematic diagram of the connecting structure of a strain string for high-altitude multi-split lines proposed by the present utility model;
[0015] Figure 3 FIG. 3 is a schematic diagram of the splitting structure of a strain string for high-altitude multi-split lines proposed by the present utility model.
[0016] In the figure: 1, individual strain insulator; 2, strain insulator string; 3, connecting tail seat; 4, connecting triangular plate; 5, connecting line seat; 6, counterweight seat; 7, counterweight rod; 8, counterweight block; 9, splitting head; 10, splitting triangular plate; 11, splitting tail; 12, spacer sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.
[0018] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.
[0019] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.
[0020] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "joined", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.
[0021] Referring to Figures 1-3 , a strain string for high-altitude multi-split lines includes: a number of strain insulator individuals 1. A number of strain insulator individuals 1 are connected end to end to form a strain insulator string 2. A connection structure is movably installed at one end of the strain insulator string 2, and a counterweight structure is installed below the connection structure. Three groups of strain insulator strings 2 are connected through a multi-split structure; the connection structure includes: a connection tail seat 3, a connection triangular plate 4, and a connection wire seat 5; the connection tail seat 3 is sleeved on the head of the strain insulator string 2, the connection triangular plate 4 is connected to the connection tail seat 3 through a shaft, and the connection wire seat 5 is connected to the connection triangular plate 4 through a shaft. The connection structure can change the linear connection between the strain insulator string 2 and the line into a rotatable connection at a certain angle, so that when the line expands due to thermal expansion, the strain insulator string 2 can still be kept in a tightened state.
[0022] Specifically, the counterweight structure includes: a counterweight seat 6, a counterweight rod 7, and a number of counterweight blocks 8; the counterweight seat 6 is connected to the connection triangular plate 4 through a shaft, the counterweight rod 7 is installed on the lower wall surface of the counterweight seat 6, a number of counterweight blocks 8 are movably sleeved outside the counterweight rod 7, and a spacer sleeve 12 is provided between a number of counterweight blocks 8. The counterweight structure can pull down the connection structure, so as to ensure that both the line and the strain insulator string 2 are in a taut state.
[0023] Specifically, the multi-splitting structure includes: a splitting head 9, a splitting triangular plate 10, and two splitting tails 11; the splitting head 9 is sleeved on the tail of the strain insulator string 2, the splitting triangular plate 10 is installed on one side of the splitting head 9, and the two splitting tails 11 are respectively installed on the other two tips of the splitting triangular plate 10. The splitting triangular plate 10 is an isosceles right triangle, and the splitting triangular plate 10 is an isosceles triangle with a base angle of 30 degrees. The multi-splitting structure can split an original set of lines into two sets of lines and support an angle of 120 degrees and 90 degrees between the two sets of lines.
[0024] Working principle: When the high-voltage line needs to be divided into two sets of branch lines, the corresponding strain insulator string 2 also needs to be connected to the ground. The utility model can support splitting a set of lines into two sets of branch lines with an included angle of 90 degrees, and can also support splitting a set of lines into two sets of branch lines with an included angle of 120 degrees, which is achieved by splitting triangular plates 10 with different interior angles. Due to different environments and large temperature differences on the plateau, when the line expands and elongates due to heat, the counterweight rod 7 and several counterweight blocks 8 pull the counterweight seat 6 downward. At this time, the connection socket 5 and the connection tail socket 3 rotate respectively through the shaft and the connection triangular plate 4, so that the connection tail socket 3 and the connection socket 5 form an angle less than 180 degrees, thereby preventing loosening between the strain insulator individuals 1 inside the strain insulator string 2, and the number of counterweight blocks 8 can be increased or decreased according to specific situations. Among them, the spacer sleeve 12 can leave a certain gap between the counterweight blocks 8 to prevent the counterweight blocks 8 from sticking together at low temperatures.
[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A tension string for high-altitude multi-split lines, comprising: A plurality of tension insulator individuals (1), wherein the plurality of tension insulator individuals (1) are connected end to end to form a tension insulator string (2), characterized in that a connection structure is movably installed at one end of the tension insulator string (2), a counterweight structure is installed below the connection structure, and three groups of the tension insulator strings (2) are connected via a multi-split structure; The connection structure comprises: a connection tailstock (3), a connection triangle plate (4) and a connection wire seat (5); The connection tail seat (3) is sleeved on the head of the tension insulator string (2), the connection triangle plate (4) is connected to the connection tail seat (3) via a shaft, and the connection wire seat (5) is connected to the connection triangle plate (4) via a shaft.
2. A tension string for high altitude multi-split lines according to claim 1, characterized in that: The counterweight structure comprises: a counterweight seat (6), a counterweight rod (7) and a plurality of counterweight blocks (8); The counterweight seat (6) is connected to the connecting triangle plate (4) via a shaft, the counterweight rod (7) is mounted on the lower wall of the counterweight seat (6), and a plurality of counterweight blocks (8) are movably sleeved on the outside of the counterweight rod (7).
3. A tension string for high altitude multi-split lines according to claim 1, characterized in that: The multi-splitting structure comprises: a splitting head (9), a splitting triangle plate (10) and two splitting tails (11); The split head (9) is sleeved on the tail of the tension insulator string (2), the split triangle plate (10) is installed on one side of the split head (9), and the two split tails (11) are respectively installed on the other two tips of the split triangle plate (10).
4. A tension string for high altitude multi-split lines according to claim 2, characterized in that: A spacing sleeve (12) is provided between the plurality of counterweight blocks (8).
5. A tension string for high altitude multi-split lines according to claim 3, characterized in that: The split triangle plate (10) is an isosceles right triangle.
6. A tension string for high altitude multi-split lines according to claim 3, characterized in that: The split triangle plate (10) is an isosceles triangle with a base angle of thirty degrees.