Elastic self-adjusting power transformation fitting

Abstract

The application relates to the technical field of transformer substations, in particular to an elastic self-adjusting transformer fitting, which comprises telescopic springs, a wire crimping pipe, an upper metal plate and a lower metal plate, a sliding rail is arranged directly below the upper metal plate, a sliding constraint rod is arranged through the lower end of the sliding rail, and the sliding constraint rod is in sliding connection with the sliding rail; the lower end of the sliding constraint rod is arranged on the lower metal plate; the telescopic springs are arranged in two groups and are symmetrically arranged on the two sides of the sliding rail, one end of each telescopic spring is arranged on the upper metal plate, and the other end is arranged on the lower metal plate; a connecting piece is arranged below the lower metal plate, a connecting accessory is arranged below the connecting piece, a wire crimping pipe is arranged below the connecting accessory, and wires are arranged in the wire crimping pipe.

Description

Technical Field

[0001] This invention relates to the field of substation technology, and more specifically, to a flexible self-adjusting substation fitting. Background Technology

[0002] Steel-cored aluminum stranded wire is widely used in domestic substations. However, this wire can deform under varying ambient temperatures. Due to the difficulty in controlling the tension of the conductors during construction, the conductors will elongate when the temperature rises, becoming slack and causing them to sway in strong winds. This can lead to electrical equipment discharge or short circuits, affecting the reliability of power supply. Conversely, the conductors will contract when the temperature drops, putting tension on the terminal blocks of electrical equipment and potentially damaging the equipment, resulting in power supply accidents. Summary of the Invention

[0003] To address the problems existing in the prior art, the purpose of this invention is to provide a flexible self-adjusting transformer fitting. Given the difficulty in controlling the tension of the conductors during construction, this fitting can absorb the elongation of the conductors when the temperature rises, preventing the conductors from swaying in strong winds and eliminating discharge or short circuits in electrical equipment. When the temperature drops, it can compensate for the contraction of the conductors, thereby significantly reducing the tension force on the terminal blocks of electrical equipment and preventing damage to the electrical equipment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A flexible self-adjusting substation fitting includes a telescopic spring 1, a conductor crimping tube 2, an upper metal plate 6, and a lower metal plate 7.

[0006] A sliding track 8 is provided directly below the upper metal plate 6, and the sliding track 8 is perpendicular to the upper metal plate 6; a sliding constraint rod 4 is provided through the lower end of the sliding track 8, and the sliding constraint rod 4 is slidably connected to the sliding track 8; the lower end of the sliding constraint rod 4 is provided on the lower metal plate 7, and the upper metal plate 6 and the lower metal plate 7 are arranged in parallel.

[0007] The telescopic spring 1 is provided in two sets. The two sets of telescopic spring 1 are located on both sides of the sliding track 8 and are arranged symmetrically. One end of the telescopic spring 1 is set on the upper metal plate 6 and the other end is set on the lower metal plate 7.

[0008] The above technical solution constrains the expansion and contraction of the telescopic spring by limiting the movement between the sliding track and the sliding constraint rod, ensuring that the spring runs vertically and is not damaged.

[0009] A connector 9 is provided below the lower metal plate 7, a connecting accessory 5 is provided below the connector 9, and a wire crimping tube 2 is provided below the connecting accessory 5. A wire 21 is provided inside the wire crimping tube 2. The wire crimping tube is pressed into the crimping tube by a hydraulic device, so that the fitting and the wire are reliably connected.

[0010] Through the above technical solution, connector 9 is used to connect the upper and lower components, making the equipment structure more reasonable.

[0011] Furthermore, the sliding constraint rod 4 includes a horizontal bar and a vertical bar, which are arranged vertically in a "T" shape. The two side walls of the sliding track 8 have grooves that match the horizontal bar of the sliding constraint rod 4. Both ends of the horizontal bar of the sliding constraint rod 4 are located on the grooves and slide on them. The diameter of the vertical bar of the sliding constraint rod 4 is smaller than the diameter of the sliding track 8.

[0012] The above technical solution provides a specific structure for the sliding constraint rod 4 to slide within the sliding track 8, which is based on the principle of the sliding groove and the slider.

[0013] Furthermore, the maximum sliding distance of the sliding constraint rod 4 is not greater than the maximum tensile length of the telescopic spring 1, ensuring that the force on the equipment is within the allowable range and avoiding damage to the telescopic spring.

[0014] Furthermore, the fitting also includes an electric field equalization device 3, which is a ring-shaped protective fitting located on the periphery of the aforementioned device. Specifically, the upper end of the electric field equalization device 3 is located above the upper metal plate 6, and the lower end is positioned outside the conductor crimping tube 2. Connectors 9 are attached to both sides and fixedly installed via the connectors 9. Since each clamp has a sharp point, this device is used to equalize the electric field and improve the insulation string or prevent corona discharge in the presence of sharp conductors.

[0015] Furthermore, the connector 9 is provided in two sets and is arranged symmetrically. Both sets of connector 9 include a rectangular connecting plate 91 and connecting rods 92 provided on both sides of the connecting plate. The upper end of the connecting plate 91 is connected to the lower metal plate 7 by bolts, and the lower part of the connecting plate 91 is connected to the connecting accessory 5 by bolts. The connecting rods 92 are used to connect the electric field equalization device 3.

[0016] Furthermore, a hardware connection component 10 is provided above the upper metal plate 6, and the hardware connection component 10 is connected to the hanging point.

[0017] Compared with the prior art, the substation fittings of the present invention have the following advantages:

[0018] The wire is connected to the wire via a wire crimping tube. Relying on the deformation mechanical properties of the telescopic spring and the constraint of the sliding track, it absorbs the vertical deformation of the wire. When the temperature rises, it can absorb the elongation of the wire, preventing the wire from swaying in strong winds and eliminating discharge or short circuits in electrical equipment. When the temperature drops, it can compensate for the shrinkage of the wire, thereby significantly reducing the tension on the terminal block of the electrical equipment and preventing damage to the electrical equipment. Attached Figure Description

[0019] Figure 1 This is a front view of a flexible self-adjusting substation fitting according to the present invention.

[0020] Figure 2 This is a left view of a self-adjusting transformer fitting according to the present invention.

[0021] Figure 3 This is a test schematic diagram of an elastic self-adjusting substation fitting assembly according to the present invention.

[0022] In the diagram, 1-extension spring; 2-wire crimping tube; 21-wire; 3-electric field equalization device; 4-sliding constraint rod; 5-connecting accessory; 6-upper metal plate; 7-lower metal plate; 8-sliding track; 9-connector; 91-connecting plate; 92-connecting rod; 10-metal fitting connection component. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Example 1

[0026] like Figure 1-3As shown, this invention provides an elastic self-adjusting substation fitting, including a telescopic spring 1, a conductor crimping tube 2, an upper metal plate 6, and a lower metal plate 7. The upper metal plate 6 and the lower metal plate 7 are arranged in parallel and are mainly used to house the spring and the sliding rail. A sliding rail 8 is vertically arranged directly below the upper metal plate 6, and a sliding constraint rod 4 is arranged through the lower end of the sliding rail 8, slidably connected to the sliding rail 8. In this invention, the sliding constraint rod 4 includes a horizontal bar and a vertical bar, arranged vertically in a "T" shape. The two side walls of the sliding rail 8 have grooves matching the horizontal bar of the sliding constraint rod 4. The two ends of the horizontal bar of the sliding constraint rod 4 are located on the grooves and slide on them. The diameter of the vertical bar of the sliding constraint rod 4 is smaller than the diameter of the sliding rail 8. The lower end of the sliding constraint rod 4 is located on the lower metal plate 7. That is, the sliding rail is fixedly arranged on the upper metal plate, and the sliding constraint rod is fixedly arranged on the lower metal plate. The sliding constraint rod slides on the sliding rail by the movement between the upper and lower metal plates.

[0027] In this invention, two sets of telescopic springs 1 are provided, and the two sets of telescopic springs 1 are respectively located on both sides of the sliding track 8 and are symmetrically arranged with respect to the sliding track 8. One end of the telescopic spring 1 is set on the upper metal plate 6, and the other end is set on the lower metal plate 7. The extension and contraction of the spring is achieved by the pulling between the upper and lower metal plates. Since the spring has a maximum degree of extension, it is necessary to limit its extension distance to ensure that the spring is not damaged. This invention constrains the extension and contraction deformation of the telescopic spring by limiting the sliding track and the sliding constraint rod, and the maximum sliding distance of the sliding constraint rod is not greater than the maximum extension length of the telescopic spring 1, ensuring that the spring is not damaged when running in the vertical direction.

[0028] A connector 9 is provided below the lower metal plate 7. Two sets of connectors 9 are symmetrically arranged. Each set of connectors 9 includes a rectangular connecting plate 91 and connecting rods 92 on both sides of the connecting plate. The upper end of the connecting plate 91 is connected to the lower metal plate 7 by bolts. A connecting accessory 5 is connected below the connecting accessory 5 by bolts. A wire crimping tube 2 is provided below the wire crimping tube 2, and a wire 21 is installed inside the wire crimping tube 2. The wire crimping tube 2 uses a hydraulic device to press the wire into the crimping tube, ensuring a reliable connection between the hardware and the wire. A hardware connecting component 10 is provided above the upper metal plate 6, connecting to the hanging point.

[0029] Example 2

[0030] like Figure 1-3As shown, this invention provides an elastic self-adjusting substation fitting, including a telescopic spring 1, a conductor crimping tube 2, an upper metal plate 6, and a lower metal plate 7. The upper metal plate 6 and the lower metal plate 7 are arranged in parallel and are mainly used to house the spring and the sliding rail. A sliding rail 8 is vertically arranged directly below the upper metal plate 6, and a sliding constraint rod 4 is arranged through the lower end of the sliding rail 8, slidably connected to the sliding rail 8. In this invention, the sliding constraint rod 4 includes a horizontal bar and a vertical bar, arranged vertically in a "T" shape. The two side walls of the sliding rail 8 have grooves matching the horizontal bar of the sliding constraint rod 4. The two ends of the horizontal bar of the sliding constraint rod 4 are located on the grooves and slide on them. The diameter of the vertical bar of the sliding constraint rod 4 is smaller than the diameter of the sliding rail 8. The lower end of the sliding constraint rod 4 is located on the lower metal plate 7. That is, the sliding rail is fixedly arranged on the upper metal plate, and the sliding constraint rod is fixedly arranged on the lower metal plate. The sliding constraint rod slides on the sliding rail by the movement between the upper and lower metal plates.

[0031] In this invention, two sets of telescopic springs 1 are provided, and the two sets of telescopic springs 1 are respectively located on both sides of the sliding track 8 and are symmetrically arranged with respect to the sliding track 8. One end of the telescopic spring 1 is set on the upper metal plate 6, and the other end is set on the lower metal plate 7. The extension and contraction of the spring is achieved by the pulling between the upper and lower metal plates. Since the spring has a maximum degree of extension, it is necessary to limit its extension distance to ensure that the spring is not damaged. This invention constrains the extension and contraction deformation of the telescopic spring by limiting the sliding track and the sliding constraint rod, and the maximum sliding distance of the sliding constraint rod is not greater than the maximum extension length of the telescopic spring 1, ensuring that the spring is not damaged when running in the vertical direction.

[0032] A connector 9 is provided below the lower metal plate 7. Two sets of connectors 9 are symmetrically arranged. Each set of connectors 9 includes a rectangular connecting plate 91 and connecting rods 92 on both sides of the connecting plate. The upper end of the connecting plate 91 is connected to the lower metal plate 7 by bolts. A connecting accessory 5 is connected below the connecting accessory 5 by bolts. A wire crimping tube 2 is provided below the wire crimping tube 2, and a wire 21 is installed inside the wire crimping tube 2. The wire crimping tube 2 uses a hydraulic device to press the wire into the crimping tube, ensuring a reliable connection between the hardware and the wire. A hardware connecting component 10 is provided above the upper metal plate 6, connecting to the hanging point.

[0033] Because each clamp has a sharp point, in order to improve the insulator string or prevent corona discharge due to the presence of sharp conductors, this embodiment of the invention also includes an electric field equalization device 3. The electric field equalization device 3 is a ring-shaped protective fitting located on the periphery of the aforementioned device. That is, the upper end of the electric field equalization device 3 is located above the upper metal plate 6, the lower end is placed outside the conductor crimping tube 2, and both sides are connected to the connecting rod 92. The entire electric field equalization device 3 is fixedly installed by the connecting piece 9.

[0034] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the inventive concept, various modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

Claims

1. A flexible self-adjusting transformer fitting, characterized in that: Includes a telescopic spring (1), a wire crimping tube (2), an upper metal plate (6), and a lower metal plate (7). A sliding rail (8) is provided directly below the upper metal plate (6), and the sliding rail (8) is perpendicular to the upper metal plate (6); A sliding constraint rod (4) is provided through the lower end of the sliding track (8), and the sliding constraint rod (4) is slidably connected to the sliding track (8); the sliding constraint rod (4) includes a horizontal rod and a vertical rod, which are arranged vertically in a "T" shape; the two side walls of the sliding track (8) are provided with grooves that match the horizontal rod of the sliding constraint rod (4); the two ends of the horizontal rod of the sliding constraint rod (4) are located on the groove and are slidably connected on the groove; the diameter of the vertical rod of the sliding constraint rod (4) is smaller than the diameter of the sliding track (8); the lower end of the sliding constraint rod (4) is set on the lower metal plate (7); the upper metal plate (6) and the lower metal plate (7) are arranged in parallel; The telescopic spring (1) is provided in two sets. The two sets of telescopic spring (1) are located on both sides of the sliding track (8) and are arranged symmetrically. One end of the telescopic spring (1) is set on the upper metal plate (6) and the other end is set on the lower metal plate (7). The maximum sliding distance of the sliding constraint rod (4) is not greater than the maximum tensile length of the telescopic spring (1). A connector (9) is provided below the lower metal plate (7), a connecting accessory (5) is provided below the connector (9), a wire crimping tube (2) is provided below the connecting accessory (5), and a wire (21) is provided inside the wire crimping tube (2).

2. The flexible self-adjusting transformer fitting according to claim 1, characterized in that: The fitting also includes an electric field equalization device (3), which is a ring-shaped protective fitting and is sleeved on the outside of the elastic self-adjusting substation fitting.

3. The flexible self-adjusting transformer fitting according to claim 2, characterized in that: The upper end of the electric field equalization device (3) is located above the upper metal plate (6), and the lower end of the electric field equalization device (3) is placed outside the wire crimping tube (2). The left and right sides of the electric field equalization device (3) are connected to the connectors (9) and fixedly installed through the connectors (9).

4. The elastic self-adjusting transformer fitting according to claim 2, characterized in that: The connector (9) is provided in two sets and is symmetrically arranged. Both sets of connectors (9) include a rectangular connecting plate (91) and a connecting rod (92) on both sides of the connecting plate. The upper end of the connecting plate (91) is connected to the lower metal plate (7) by bolts. The lower part of the connecting plate (91) is connected to the connecting accessory (5) by bolts. The connecting rod (92) is used to connect the electric field equalization device (3).

5. The flexible self-adjusting transformer fitting according to claim 1, characterized in that: A fitting connection component (10) is provided above the upper metal plate (6), and the fitting connection component (10) is connected to the hanging point.

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