A wire clamp for a line

Abstract

The present application belongs to the technical field of power supply device, and particularly relates to a wire clamp for a line, which comprises at least one set of supporting units, each set of supporting units comprises two triangular elastic connecting assemblies, the top corners of the two triangular elastic connecting assemblies are connected with a first winding rod, and the two bottom corners of the two triangular elastic connecting assemblies are respectively connected with a second winding rod, each set of supporting units can be independently connected in series on a wire in the line, or multiple sets of supporting units can be connected in series and share one second winding rod two by two in turn to form a set of supporting units arranged on the wire, and the wire can pass through one second winding rod of a single set of supporting units, and then pass through the first connecting rod and another second winding rod of the set of supporting units in turn. The device can make the wire in the line itself have the elastic function, so that more space is not needed for the line during construction, and the thermal expansion and contraction requirement of the wire can be met.

Description

Technical Field

[0001] This invention belongs to the field of power supply device technology, and specifically relates to a wire clamp for a power line. Background Technology

[0002] Transmission lines and distribution lines are important components of the power grid, responsible for transmitting electrical energy. When erecting lines, due to the weight of the conductors themselves and considering thermal expansion and contraction, a certain amount of sag needs to be reserved for the lines. The size of the sag must not only meet the safe distance between the line and the ground, but also ensure that there is enough margin to prevent the conductors from breaking when they contract due to cold in winter.

[0003] When power lines cross roads, bridges, or buildings, special attention should be paid to the safety distance between the lines and the ground. The safety requirements for the ground must be met, while also allowing sufficient margin to accommodate the thermal expansion and contraction of the conductors. The common practice is to raise the poles at both ends of the line, which increases the construction costs and even the difficulty of construction for power companies. Therefore, it is urgent to develop an adaptive device for adjusting the sag height of the line to overcome these difficulties in line construction. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A wire clamp for a line includes at least one set of support units. Each set of support units includes two triangular elastic connecting components. A first winding rod is connected between the apex angles of the two triangular elastic connecting components, and a second winding rod is connected between the two base angles of the two triangular elastic connecting components. Each set of support units can be independently connected in series on the conductor in the line, or multiple sets of support units can be connected in series and share a second winding rod in pairs to form a support unit group on the conductor. The conductor can be wound around one of the second winding rods of each set of support units, and then wound around the first connecting rod and the other second winding rod of the set of support units in sequence. When the conductor is subjected to external force or weather conditions, the two second winding rods of each set of support units can approach or move away from each other through the corresponding triangular elastic connecting components to achieve conductor tension adjustment.

[0006] Preferably, each of the triangular elastic connection components includes a spring, a first connecting rod, and a second connecting rod. The spring, the first connecting rod, and the second connecting rod are arranged in a triangle. One end of the first connecting rod and one end of the second connecting rod are elastically connected by the spring, and the other ends of the first connecting rod and the second connecting rod are hinged together. The two ends of the two second winding rods of each support unit are rotatably connected to the spring connection ends of the corresponding two first connecting rods or two second connecting rods, respectively. This allows the two second winding rods of each support unit to move closer to or further away from each other around the hinged ends of the first and second connecting rods under the tension of the conductor and the elastic force of the spring, thereby achieving conductor tension adjustment.

[0007] Preferably, the two ends of the first winding rod are respectively fixedly connected, rotatably connected, or hingedly connected to the ends of the corresponding two first connecting rods away from the spring. When the fixed or hinged connection is used, the wire is slidably connected to the first winding rod between the two first connecting rods; when the rotatable connection is used, the wire is rollingly connected to the first winding rod between the two first connecting rods, which helps to protect the outer sheath of the wire and extend the service life of the wire.

[0008] Preferably, both ends of the first winding rod are fixedly connected, rotatably connected, or hingedly connected to the ends of the corresponding two second connecting rods furthest from the spring. When a fixed or hinged connection is used, the conductor is slidably connected to the first winding rod between the two second connecting rods; when a rotatable connection is used, the conductor is rollingly connected to the first winding rod between the two second connecting rods, which helps protect the conductor's sheath and extends the conductor's service life.

[0009] Preferably, the ends of the first connecting rod furthest from the spring and the second connecting rod furthest from the spring are hinged together by connecting rings. The two ends of the first winding rod are respectively fixedly connected, rotatably connected, or hingedly connected to the corresponding connecting rings. When the two ends of the first winding rod are rotatably connected to the corresponding connecting rings, the first winding rod rolls with the conductor, which helps protect the conductor's sheath and extends its service life.

[0010] Preferably, the present invention comprises a support unit group consisting of three to five sets of support units. Two adjacent sets of support units in the support unit group share a second winding rod. Two first connecting rods of one set of support units are rotatably connected to the shared second winding rod, and two second connecting rods of the other set of support units are rotatably connected to the shared second winding rod. This ensures a greater range of adjustment for the conductor and reduces device manufacturing costs.

[0011] Preferably, it includes a protective cover, which is placed outside the support unit, and the two ends of the protective cover are provided with through holes for the wires to slide through, so as to avoid the corrosion of the wire clamp by wind and rain.

[0012] Preferably, the first winding rod and the second winding rod are respectively provided with limiting members to prevent the wire from swinging along the axial direction of the first winding rod and the second winding rod, which helps to ensure the balanced force on the two triangular elastic connection components of each support unit and extend the service life of the device.

[0013] Preferably, the limiting member is a limiting ring disposed in the middle of the first winding rod and the second winding rod. The wire passes over the first winding rod and the second winding rod in the area defined by the limiting ring. By setting the limiting ring, the wire is limited to the middle of the first winding rod and the second winding rod, thereby ensuring that the two triangular elastic connection components of each support unit are subjected to balanced force and extending the service life of the device.

[0014] The present invention also includes other devices or components that enable the wire clamp for the line to be used normally, all of which are conventional technical means in the art; in addition, devices and components not limited in the present invention all adopt conventional technical means in the art.

[0015] The working principle of this invention is that multiple clamps can be installed on each line according to the type of conductor and the span of the line. If the conductor is thin and the span is small, only one clamp needs to be installed. If the conductor is thick and the span is large, multiple clamps can be installed at different places on the line. Whether each wire clamp support unit is used individually or in combination as a group, the conductor must first be wound around one of the second winding rods of a support unit, and then sequentially wound around the first connecting rod and the other second winding rod of that support unit. When the conductor has sufficient length, the two second winding rods of each support unit approach each other through corresponding triangular elastic connecting components to store and tighten the conductor. When the conductor is taut, the two second winding rods of each support unit move away from each other through corresponding triangular elastic connecting components to release the conductor length and reduce conductor stress, thereby achieving conductor tension adjustment. Connecting multiple support units independently in series in the conductor of the line is convenient for installation and increases the adjustable length of the conductor. Connecting multiple support units in series and having each pair share a second winding rod helps save manufacturing costs while ensuring the adjustable length of the conductor.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The device has a simple structure and can be used as an auxiliary device for the construction of lines, so that the conductors in the line have the function of expansion and contraction. When constructing the line, there is no need to leave more extra margin for the line. When crossing roads, bridges and buildings, the conductors in the line can be directly tightened under the action of the line clamps, without the need to raise the line poles. At the same time, it can also meet the requirements of thermal expansion and contraction of the conductors in different seasons. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention in the embodiment.

[0019] Figure 2 yes Figure 1 Enlarged schematic diagram of the G section structure.

[0020] Figure 3 This is a three-dimensional structural diagram of a single support unit of the present invention in an embodiment. Detailed Implementation

[0021] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely illustrative and is not intended to limit the scope of the invention. Any modifications, equivalent substitutions, or improvements made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the scope of protection of the present invention.

[0022] Example

[0023] like Figures 1-3 As shown, the present invention provides a wire clamp for a line, comprising five sets of support units. Each set of support units includes two triangular elastic connecting components. A first winding rod 1 is connected between the apex corners of the two triangular elastic connecting components, and a second winding rod 2 is connected between the two base corners of the two triangular elastic connecting components respectively. The five sets of support units are connected in series and share a second winding rod 2 in pairs, forming a support unit group that is installed on the conductor 3 in the line. The conductor 3 can be wound around one of the second winding rods 2 of each set of support units, and then wound around the first connecting rod 1 and the other second winding rod 2 of that set of support units in sequence. When the conductor 3 is subjected to external force or weather conditions, the two second winding rods 2 of each set of support units can approach or move away from each other through the corresponding triangular elastic connecting components to achieve tension adjustment of the conductor 3.

[0024] Specifically, each of the triangular elastic connection components includes a spring 4, a first connecting rod 5, and a second connecting rod 6. The spring 4, the first connecting rod 5, and the second connecting rod 6 are arranged in a triangle. One end of the first connecting rod 5 and one end of the second connecting rod 6 are elastically connected by the spring 4, and the other end of the first connecting rod 5 and the other end of the second connecting rod 6 are hinged together. The two ends of the two second winding rods 2 of each support unit are rotatably connected to the spring connection ends of the corresponding two first connecting rods 5 or two second connecting rods 6. This allows the two second winding rods 2 of each support unit to move closer to or further away from each other around the hinged ends of the first connecting rod 5 and the second connecting rod 6 under the tension of the conductor 3 and the elastic force of the spring 4, thereby achieving tension adjustment of the conductor 3. The end of the first connecting rod 5 away from the spring 4 and the end of the second connecting rod 6 away from the spring 4 are hinged together by a connecting ring 7, and the two ends of the first winding rod 1 are respectively hinged to the connecting ring 7 at the corresponding ends. In the support unit group, in two adjacent support units, the two first connecting rods 5 of one support unit are rotatably connected to a shared second winding rod 2, and the two second connecting rods 6 of the other support unit are rotatably connected to the shared second winding rod 2. This ensures that the conductor 3 has a larger adjustment range and saves on device manufacturing costs. A protective cover 8 is provided outside the support unit, and both ends of the protective cover 8 have through holes for the conductor 3 to slide through, which can prevent wind and rain from corroding the wire clamp. Limiting rings 9 are respectively provided in the middle of the first winding rod 1 and the second winding rod 2 to prevent the conductor 3 from swinging axially along the first winding rod 1 and the second winding rod 2, so that the conductor 3 is limited to the middle of the first winding rod 1 and the second winding rod 2. This helps to ensure that the two triangular elastic connecting components of each support unit are evenly stressed and extend the service life of the device.

[0025] The working principle of this invention is as follows: Multiple clamps can be installed on the conductor 3 in each line, depending on the type of conductor 3 and the span of the line. If the conductor 3 is thin and the line span is small, only one clamp is needed; if the conductor 3 is thick and the span is large, multiple clamps can be installed at different locations on the line. In use, the conductor 3 is first wound around one of the second winding rods 2 of a set of support units, and then sequentially wound around the first connecting rod 1 and the other second winding rod 2 of that set of support units. When the conductor has sufficient length, the two second winding rods 2 of each set of support units approach each other through corresponding triangular elastic connecting components to store and tighten the conductor 3. When the conductor 3 is taut, the two second winding rods 2 of each set of support units move away from each other through corresponding triangular elastic connecting components to release the length of the conductor 3 and reduce conductor stress, thereby achieving tension adjustment of the conductor 3. By connecting multiple sets of support units in series and having each pair share a second winding rod 2, the manufacturing cost of the device can be saved while ensuring the adjustable length of the conductor 3.

[0026] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A wire clamp for a circuit, characterized in that: It includes at least one set of support units, each set of support units including two triangular elastic connecting components. A first winding rod is connected between the apex of the two triangular elastic connecting components, and a second winding rod is connected between the two bases of the two triangular elastic connecting components respectively. Each set of support units can be connected in series independently on the conductor in the line, or multiple sets of support units can be connected in series and share a second winding rod in pairs to form a support unit group and set on the conductor. The conductor can be wound around one of the second winding rods of each set of support units, and then wound around the first connecting rod and the other second winding rod of the set of support units in sequence. When the conductor is subjected to external force or weather conditions, the two second winding rods of each set of support units can approach or move away from each other through the corresponding triangular elastic connecting components to achieve conductor tension adjustment. The wire clamp also includes a protective cover and a support unit group composed of three to five sets of support units. Two adjacent sets of support units in the support unit group share a second winding rod, and the two first connecting rods of one set of support units are rotatably connected to the shared second winding rod, and the two second connecting rods of the other set of support units are rotatably connected to the shared second winding rod. The first winding rod and the second winding rod are respectively provided with limiting members to prevent the wire from swinging along the axial direction of the first winding rod and the second winding rod. The protective cover is provided outside the support unit, and the two ends of the protective cover are provided with through holes for the wire to slide through.

2. The wire clamp for a circuit according to claim 1, characterized in that: Each of the triangular elastic connection components includes a spring, a first connecting rod, and a second connecting rod. The spring, the first connecting rod, and the second connecting rod are arranged in a triangle. One end of the first connecting rod and one end of the second connecting rod are elastically connected by the spring, and the other end of the first connecting rod and the other end of the second connecting rod are hinged together. The two ends of the two second winding rods of each support unit are rotatably connected to the spring connection ends of the corresponding two first connecting rods or two second connecting rods, respectively.

3. The wire clamp for a line according to claim 2, characterized in that: The two ends of the first winding rod are respectively fixedly connected, rotatably linked, or hinged to the ends of the two corresponding first connecting rods away from the spring.

4. The wire clamp for a line according to claim 2, characterized in that: The two ends of the first winding rod are respectively fixedly connected, rotatably connected, or hingedly connected to the ends of the two corresponding second connecting rods away from the spring.

5. The wire clamp for a line according to claim 2, characterized in that: The end of the first connecting rod away from the spring and the end of the second connecting rod away from the spring are hinged together by a connecting ring. The two ends of the first winding rod are respectively fixedly connected, rotatably linked or hinged to the connecting rings at the corresponding ends.

6. The wire clamp for a line according to claim 1, characterized in that: The limiting member is a limiting ring disposed in the middle of the first winding rod and the second winding rod, and the wire passes over the first winding rod and the second winding rod in the area defined by the limiting ring.

Images