A phase modulation device suitable for power distribution networks

Abstract

This invention provides a phase adjustment device suitable for power distribution networks, relating to the field of phase adjustment technology. The device includes a utility pole with a fixed structure installed in the middle. A connecting rod is fixedly connected to one side of the fixed structure. Two vertical rotating nodes are provided at the end of the connecting rod away from the fixed structure. One of the vertical rotating nodes is fixedly connected to the connecting rod, and a telescopic rod is fixedly connected between the two vertical rotating nodes. A rotating connecting platform is fixedly connected to the end of each vertical rotating node away from the connecting rod, and a phase adjustment box is fixedly connected to one side of the rotating connecting platform. The device consists of four parts: the fixed structure, the connecting rod, the rotating nodes, and the phase adjustment device. The fixed structure serves to fix the phase adjustment device to the utility pole, providing a fixing function. The connecting rod and the rotating nodes connect the phase adjustment device to the fixed structure and allow for rotation and extension, adjusting the phase adjustment device to a suitable position.

Description

Technical Field

[0001] This invention relates to the field of phase adjustment technology, specifically to a phase adjustment device suitable for power distribution networks. Background Technology

[0002] In current distribution network line switching projects, to prevent equipment damage and system failures caused by incorrect phase sequence connections, it is necessary to verify the phase sequence of the two connected lines to ensure accurate connection. In 10 kV and 0.4 kV lines, situations where lines cannot be connected at the switching point due to phase sequence mismatch frequently occur. To ensure successful line switching, the phase sequence of one line needs to be adjusted at locations such as the substation outgoing line bay and the primary and secondary fusion switch, which involves power outages and is quite troublesome. To ensure that the line can be connected at the switching point, a phase adjustment device is needed to adjust the phase sequence. Applying this device at the switching point can solve the problem of lines being unable to be switched due to asymmetrical phase sequences between the two lines.

[0003] Existing phase switching boxes are relatively large in size and weight, while distribution network line switching projects often require high-altitude operations. During the climbing and wiring process, engineers need to constantly adjust their positions and fix the wires, which is a high-risk and tedious job with many inconveniences, especially in confined spaces or high-altitude operations. This inconvenience cannot meet the working needs in various complex environments.

[0004] To address this, we have developed a new phase adjustment device suitable for power distribution networks. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a phase adjustment device suitable for power distribution networks, solving the problems of existing phase adjustment boxes being unable to be fixed in confined spaces or in high-altitude environments and being inconvenient to move.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a phase adjustment device suitable for power distribution networks, comprising a utility pole, a fixed structure installed in the middle of the utility pole, a connecting rod fixedly connected to one side of the fixed structure, two vertical rotating nodes provided at the end of the connecting rod away from the fixed structure, one of the vertical rotating nodes being fixedly connected to the connecting rod, a telescopic rod fixedly connected between the two vertical rotating nodes, the telescopic end of the telescopic rod being fixedly connected to a horizontal rotating node, the horizontal rotating node being fixedly connected to the other vertical rotating node, a rotating connecting platform fixedly connected at the end of the vertical rotating node away from the connecting rod, and a phase adjustment box fixedly connected to one side of the rotating connecting platform.

[0009] Through the above technical solution, the telescopic pole can adjust the length of the connecting rod according to the actual situation of the line; the vertical rotating node can rotate 300 degrees, which is convenient for adjusting the position; the horizontal rotating node can rotate 300 degrees, which is convenient for adjusting the position; the connecting structure connects the phase adjustment device to the fixed device, and can be telescopic, rotated, and folded, which makes it convenient to adjust the phase adjustment device to a suitable position.

[0010] Preferably, the fixing structure includes two clamps, with a semi-circular rubber pad fixedly connected to the inner side of each clamp. One end of each clamp is provided with a U-shaped groove and a square groove, which are arranged vertically and horizontally. A first screw is rotatably connected to the inner side of the square groove, and a first fastening nut is threadedly connected to the threaded end of the first screw.

[0011] Through the above technical solution, the screw and nut serve to fix the clamp, which is fixed to the pole; the screw tightens the semi-circular rubber pad, and the semi-circular rubber pad inside the clamp contacts the pole, which plays an anti-slip role, thus stably fixing the phase adjustment device to the pole.

[0012] Preferably, a second screw is rotatably connected to the middle of the end of the clamp away from the first screw, and the second screw...

[0013] The end of the first screw is slidably connected to another clamp. The second screw is threadedly connected to a second fastening nut at its through end. One end of the clamp is rotatably connected to a fixing frame. Two fixing posts are provided on the inner side of the fixing frame. The two fixing posts are symmetrically arranged. One fixing post is fixedly connected to the fixing frame. A slider is fixedly connected to the other fixing post near the fixing frame. A first sliding groove is provided in the middle of the inner side of the fixing frame. The slider engages with the first sliding groove and is slidably connected.

[0014] Through the above technical solution, the slider slides within the first groove, and the distance between the two fixed posts is adjustable, thus adapting to utility poles of different diameters and improving the versatility and adaptability of the phase-adjusting device. The fixing frame is connected to the clamp via the second screw and the second fastening nut, enabling the fixing frame to be stably fixed to the utility pole, further enhancing the stability of the phase-adjusting device.

[0015] Preferably, the two fixed columns are provided with a plurality of sliding columns at one end close to each other. A spring is provided in the middle of the sliding column. The two ends of the plurality of sliding columns are slidably connected to the fixed column. A limit plate is fixedly connected to the through end of the sliding column. Fixed rotating rods are fixedly connected to the upper and lower ends of the fixed column. The fixed rotating rods are rotatably connected to the two ends of the fixed frame. The middle of the fixed rotating rods is rotatably connected to the clamp. A first limiting groove is provided on both sides of the rotating end of one of the fixed rotating rods and the fixed frame. The first limiting groove is located at the upper and lower ends of the movable fixed column.

[0016] With the above technical solution, when the two fixed posts slide in the first groove by the slider to adjust the distance between them to adapt to utility poles of different diameters, the design of the sliding post allows the fixed posts to maintain a certain elastic connection. As the fixed posts approach each other, the sliding post slides inside the fixed post, and the spring is compressed, providing a certain buffer between the fixed posts, so that the two fixed posts can fit more tightly against the surface of the utility pole.

[0017] Preferably, the vertical rotation node includes two symmetrical connecting columns, each connecting column having a cavity inside and an opening on its surface communicating with the cavity. An I-shaped cylinder is rotatably connected through the two connecting columns, with both ends of the I-shaped cylinder located inside the two cavities respectively. A second sliding pad is fixedly connected to the inner wall of the cavity, and a first sliding pad is fixedly connected to the inner side of the I-shaped cylinder. The first sliding pad and the second sliding pad are rotatably connected.

[0018] Through the above technical solution, the I-shaped cylindrical design between the two connecting columns enables the vertical rotating node to rotate 300 degrees, providing greater flexibility and operating space for the phase adjustment device. The combination of the first and second sliding shims between the I-shaped cylindrical and the connecting column not only ensures the smooth rotation of the I-shaped cylindrical inside the connecting column, but also improves the stability and durability of the rotating node.

[0019] Preferably, the two ends of the I-shaped cylinder are rotatably connected to limit posts, the surface of the limit posts is rotatably connected to bearings, the bearings are fixedly connected to the I-shaped cylinder, the end of the limit posts away from the I-shaped cylinder is fixedly connected to a threaded rod, the middle of the threaded rod is threaded to an internal threaded plate, the internal threaded plate is fixedly connected to the inner wall of the cavity, and the end of the I-shaped cylinder away from the limit posts is fixedly connected to a hexagonal nut.

[0020] Through the above technical solutions, the design of the limiting post and the threaded rod allows the rotation angle of the I-shaped cylinder to be limited and locked, thereby ensuring that the phase adjustment device can remain stable after being adjusted to the appropriate position, preventing displacement or loosening under natural environments such as wind and sun. The addition of the bearing further improves the smoothness and stability of the rotation of the limiting post, making the rotation operation of the I-shaped cylinder more flexible and convenient.

[0021] Preferably, the telescopic rod has a sliding cavity inside, and the inner wall of the sliding cavity has a plurality of fixed sliding grooves and a second limiting sliding groove. The plurality of fixed sliding grooves and the second limiting sliding grooves are arranged in a cross pattern. A sliding column is slidably connected through the sliding cavity. Limiting protrusions are fixedly connected to the upper and lower ends of the sliding column. The limiting protrusions are engaged and slidably connected with the second limiting sliding groove. Fixed protrusions are fixedly connected to both sides of the sliding column. The fixed protrusions are engaged and slidably connected with the fixed sliding grooves. A horizontal rotating node is fixedly connected to the through end of the sliding column. A rotating...

[0022] Damping.

[0023] Through the above technical solution, the internal sliding cavity design of the telescopic rod and the meshing sliding connection between the sliding column and the fixed sliding groove and the second limiting sliding groove enable the telescopic rod to be adjusted in a precise and stable manner. At the same time, the meshing between the fixed convex plate and the fixed sliding groove further enhances the stability of the telescopic rod and prevents swaying or displacement during the adjustment process. The horizontal rotating node connected to the through end of the sliding column has an internal rotation damping design, which allows the horizontal rotating node to rotate flexibly during the rotation process and remain stable at any position, providing strong support for the precise adjustment of the phase adjustment device.

[0024] Preferably, a handle is fixedly connected to the top of the phase adjustment box, several wiring holes are provided on both sides of the phase adjustment box, several copper plates for wiring connections are provided inside the phase adjustment box, connectors are fixedly connected to both sides of the copper plates for wiring connections, the connectors are slidably connected to the wiring holes, insulating material is provided between the several copper plates for wiring connections, several fixing holes are provided on the surface of the copper plates for wiring connections, and fixing rods are slidably connected through the several fixing holes, with both ends of the fixing rods fixedly connected to the inner wall of the phase adjustment box.

[0025] Through the above technical solution, the insulation material on the inner side of the copper plate connecting the lines ensures the safe isolation of the wires and effectively prevents safety accidents caused by short circuits. The combination design of the fixing holes and fixing rods not only ensures the stability of the copper plate connecting the lines, but also improves the structural strength of the entire phase adjustment box. The function of the phase adjustment device is to adjust each phase line on both sides of the line to the corresponding position through this device, so that the lines will not cross and the switching scheme can be implemented.

[0026] Preferably, the phase adjustment box includes 4 Type 4 0.4 kV phase-changing box, 3 Type 3 10 kV phase-changing box and 3 Type 6 10 kV phase-changing box, the 4 The Type 4 0.4 kV phase-adjusting box consists of four line-connecting copper plates (803), each with four connectors. The Type 3 10kV phase-changing box consists of three line-connecting copper plates, each with three connectors. The Type 6 10 kV phase-adjusting box consists of 6 line connection copper plates, and each line connection copper plate is equipped with 3 connectors.

[0027] Through the above technical solutions, various phase adjustment boxes are formed. The difference in the number of copper plates and connectors inside each phase adjustment box enables them to meet the adjustment needs of power grids of different scales and complexities.

[0028] (III) Beneficial Effects

[0029] This invention provides a phase adjustment device suitable for power distribution networks. It has the following advantages:

[0030] 1. This phase adjustment device, applicable to power distribution networks, consists of four parts: a fixed structure, a connecting rod and a rotating node, and the phase adjustment device itself. The fixed structure serves to fix the phase adjustment device to the pole, thus providing a fixing function. The connecting rod and the rotating node connect the phase adjustment device to the fixed structure and can rotate and extend to adjust the phase adjustment device to a suitable position.

[0031] 2. This phase-adjusting device, suitable for power distribution networks, has copper plates for line connections and insulating materials inside its enclosure. It includes inlet and outlet ports. For 10kV lines, three copper plates are installed, each with three inlet and three outlet ports. For 0.4kV lines, four copper plates are installed, each with four inlet and four outlet ports. This structure allows for various connection methods for 10kV lines, including single-circuit, double-circuit direct, and double-circuit cross connections, meeting diverse usage requirements. Therefore, the line requiring adjustment is connected through the inlet and outlet ports of the phase-adjusting device, adjusting the phase sequence of the lines on both sides to the matching position for line switching. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention.

[0033] Figure 2 This is a three-dimensional schematic diagram of the fixed structure of the present invention.

[0034] Figure 3 This is a three-dimensional schematic diagram of the fixing frame structure of the present invention.

[0035] Figure 4 This is a cross-sectional schematic diagram of the vertical rotating node structure of the present invention.

[0036] Figure 5 This is a half-sectional schematic diagram of the telescopic rod structure of the present invention.

[0037] Figure 6 This is a partial cross-sectional view of the internal structure of each phase adjustment box of the present invention.

[0038] Figure 7 This is a schematic diagram of the copper plates used in the 10 kV and 0.4 kV applications of this invention.

[0039] Figure 8 This is a diagram showing the connection of a power pole and line in a 10 kV scenario according to the present invention.

[0040] Figure 9 This is a wiring diagram for a 10 kV scenario of the present invention.

[0041] Figure 10 This is a diagram showing the connection of two power poles and lines in a 10 kV scenario according to the present invention.

[0042] Figure 11 This is a wiring diagram for a 10 kV scenario of the present invention.

[0043] Figure 12 This is a diagram showing the connection of three power poles and lines in a 10 kV scenario according to the present invention.

[0044] Figure 13 This is a three-wire diagram for a 10 kV scenario according to the present invention.

[0045] Figure 14 This is a diagram showing the connection of four power poles and lines in a 10 kV scenario according to the present invention.

[0046] Figure 15 This is a four-wire diagram for a 10 kV scenario according to the present invention.

[0047] Figure 16 This is a diagram showing the connection of five power poles and lines in a 10 kV scenario according to the present invention.

[0048] Figure 17 This is the wiring diagram for a 10 kV scenario of the present invention.

[0049] Figure 18 This is a diagram showing the connection of six power poles and lines in a 10 kV scenario according to the present invention.

[0050] Figure 19 This is a wiring diagram for a 10 kV scenario of the present invention.

[0051] Figure 20 This is a diagram showing the connection of a power pole and line in a 0.4 kV scenario according to the present invention.

[0052] Figure 21 This is a wiring diagram for a 0.4 kV scenario according to the present invention.

[0053] Figure 22 This is a diagram showing the connection of two power poles and lines in a 0.4 kV scenario according to the present invention.

[0054] Figure 23 This is a wiring diagram for a 0.4 kV scenario of the present invention.

[0055] Among them, 1. utility pole; 2. fixing structure; 201. clamp; 202. semi-circular rubber pad; 203. first fastening nut; 204. first screw; 205. U-shaped groove; 206. square groove; 207. second screw; 208. fixing frame; 209. second fastening nut; 210. first sliding groove; 211. limiting plate; 212. first limiting sliding groove; 213. fixed rotating rod; 214. slider; 215. fixing post; 216. spring; 217. sliding column; 3. connecting rod; 4. vertical rotation node; 401. connecting post; 402. opening; 403. cavity; 404. first sliding pad 405. I-shaped cylinder; 406. Threaded rod; 407. Hexagonal nut; 408. Bearing; 409. Second sliding washer; 410. Limiting post; 411. Internal threaded plate; 5. Telescopic rod; 501. Sliding cavity; 502. Fixed slide groove; 503. Second limiting slide groove; 504. Limiting protrusion; 505. Sliding post; 506. Fixed protrusion; 6. Horizontal rotating node; 601. Rotation damping; 7. Rotating connecting platform; 8. Phase adjustment box; 801. Wiring hole; 802. Fixing hole; 803. Line connecting copper plate; 804. Connector; 805. Insulating material; 806. Fixing rod; 9. Handle. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Example 1:

[0058] like Figures 1 to 17 As shown, a phase adjustment device suitable for power distribution networks includes a utility pole 1, a fixed structure 2 installed in the middle of the utility pole 1, a connecting rod 3 fixedly connected to one side of the fixed structure 2, and two vertical rotating nodes 4 provided at the end of the connecting rod 3 away from the fixed structure 2. One of the vertical rotating nodes 4 is fixedly connected to the connecting rod 3, and a telescopic rod 5 is fixedly connected between the two vertical rotating nodes 4. The telescopic end of the telescopic rod 5 is fixedly connected to a horizontal rotating node 6, and the horizontal rotating node 6 is fixedly connected to the other vertical rotating node 4.

[0059] The vertical rotating node 4 is fixedly connected, and a rotating connecting table 7 is fixedly connected to the end of the vertical rotating node 4 away from the connecting rod 3. A phase adjustment box 8 is fixedly connected to one side of the rotating connecting table 7. The phase adjustment device can be adjusted to a suitable position for easy operation by the operator.

[0060] like Figure 2As shown, the fixing structure 2 includes two clamps 201, and a semi-circular rubber pad is fixedly connected to the inner side of the clamp 201.

[0061] 202. One end of the clamp 201 is provided with a U-shaped groove 205 and a square groove 206. The U-shaped groove 205 and the square groove 206 are arranged vertically and horizontally. The inner side of the square groove 206 is rotatably connected to a first screw 204. The threaded end of the first screw 204 is threadedly connected to a first fastening nut 203. By rotating the first screw 204 and the second screw 207, the clamp is fastened by the first fastening nut 203 and the second fastening nut 209.

[0062] like Figure 2 As shown, a second screw 207 is rotatably connected to the middle of the end of the clamp 201 away from the first screw 204. One end of the second screw 207 is slidably connected to another clamp 201, and a second fastening nut is threadedly connected to the through end of the second screw 207.

[0063] 209. One end of the clamp 201 is rotatably connected to a fixing frame 208. Two fixing posts 215 are provided on the inner side of the fixing frame 208. The two fixing posts 215 are symmetrically arranged. One fixing post 215 is fixedly connected to the fixing frame 208, and the other fixing post 215 is fixedly connected to a slider 214 near the end of the fixing frame 208. A first sliding groove 210 is provided in the middle of the inner side of the fixing frame 208. The slider 214 is engaged and slidably connected with the first sliding groove 210. The semi-circular rubber pad 202 can effectively increase the friction between the clamp 201 and the utility pole 1 and enhance the stability of the fixation.

[0064] like Figure 3 As shown, two fixed posts 215 are provided with several sliding posts 217 at one end close to each other. A spring 216 is provided in the middle of the sliding post 217. The two ends of the sliding posts 217 are slidably connected to the fixed posts 215. A limit plate 211 is fixedly connected to the through end of the sliding post 217. Fixed rotating rods 213 are fixedly connected to the upper and lower ends of the fixed posts 215. The fixed rotating rods 213 are rotatably connected to the two ends of the fixed frame 208. The middle of the fixed rotating rods 213 is rotatably connected to the clamp 201. One of the fixed rotating rods 213 and the fixed frame 208 are provided with a first limiting groove 212 on both sides of the rotating end. The first limiting groove 212 is located at the upper and lower ends of the movable fixed post 215. The design of the fixed frame 208 and the fixed post 215 in the fixed structure 2 allows the distance between the clamps 201 of the fixed structure 2 to be adjusted when needed to accommodate utility poles 1 of different diameters.

[0065] like Figure 4As shown, the vertical rotation node 4 includes two symmetrical connecting columns 401. A cavity 403 is provided inside the connecting column 401, and an opening 402 is provided on the surface of the connecting column 401, which communicates with the cavity 403. An I-shaped cylinder 405 is rotatably connected between the two connecting columns 401. The two ends of the I-shaped cylinder 405 are respectively located inside the two cavities 403. A second sliding washer 409 is fixedly connected to the inner wall of the cavity 403. A first sliding washer 404 is fixedly connected to the inner side of the I-shaped cylinder 405. The first sliding washer 404 and the second sliding washer 409 are rotatably connected. The combination of the I-shaped cylinder 405, the limiting column 410 and the threaded rod 406 in the vertical rotation node 4 ensures the stability and controllability of the rotation.

[0066] like Figure 4 As shown, limit posts 410 are rotatably connected to both ends of the I-shaped cylinder 405. Bearings 408 are rotatably connected to the surface of the limit posts 410. The bearings 408 are fixedly connected to the I-shaped cylinder 405. A threaded rod 406 is fixedly connected to the end of the limit posts 410 away from the I-shaped cylinder 405. An internal threaded plate 411 is threadedly connected to the middle of the threaded rod 406. The internal threaded plate 411 is fixedly connected to the inner wall of the cavity 403. A hexagonal nut 407 is fixedly connected to the end of the I-shaped cylinder 405 away from the limit posts 410. By rotating the hexagonal nut 407, the position of the limit posts 410 can be adjusted, thereby adjusting the damping and angle range of vertical rotation.

[0067] like Figure 5 As shown, the telescopic rod 5 has a sliding cavity 501 inside. The inner wall of the sliding cavity 501 has several fixed sliding grooves 502 and a second limiting sliding groove 503. The fixed sliding grooves 502 and the second limiting sliding groove 503 are arranged in a cross shape. A sliding column 505 is slidably connected through the sliding cavity 501. The upper and lower ends of the sliding column 505 are fixedly connected to limiting protrusions 504. The limiting protrusions 504 are engaged and slidably connected with the second limiting sliding grooves 503. Fixed protrusions 506 are fixedly connected to both sides of the sliding column 505. The fixed protrusions 506 are engaged and slidably connected with the fixed sliding grooves 502. A horizontal rotation node 6 is fixedly connected to the through end of the sliding column 505. A rotation damper 601 is provided in the middle of the horizontal rotation node 6.

[0068] like Figure 6 As shown, a handle 9 is fixedly connected to the top of the phase adjustment box 8. Several wiring holes 801 are provided on both sides of the phase adjustment box 8. Several line connection copper plates 803 are provided inside the phase adjustment box 8. Connectors are fixedly connected to both sides of the line connection copper plates 803.

[0069] 804, connector 804 is slidably connected to wiring hole 801, insulating material 805 is provided between several line connecting copper plates 803, several fixing holes 802 are provided on the surface of the line connecting copper plates 803, and fixing rods are slidably connected through the several fixing holes 802.

[0070] 806, the two ends of the fixing rod 806 are fixedly connected to the inner wall of the phase adjustment box 8. The wiring holes 801 on both sides of the phase adjustment box 8 make it easy to connect and disconnect the wires, which provides convenience for the phase adjustment work of the distribution network. The phase adjustment box 8 is divided into single-circuit 10 kV, double-circuit 10 kV and 0.4 kV lines. The single-circuit 10 kV phase adjustment box 8 is composed of 3 line connection copper plates 803, and each line connection copper plate 803 is equipped with 6 connectors 804. The double-circuit 10 kV line phase adjustment box 8 is composed of two single-circuit 10 kV phase adjustment boxes. The double-circuit cross-connection 10 kV phase adjustment box 8 is composed of 6 line connection copper plates 803, and each line connection copper plate 803 is equipped with 6 connectors 804. The 0.4 kV line phase adjustment box 8 is composed of 4 line connection copper plates 803, and each line connection copper plate 803 is equipped with 6 connectors 804.

[0071] Phase adjustment box 8 includes 4 Type 4 0.4 kV phase-changing box 807, 3 Type 3 10kV phase-changing box 808 and 3 Type 6 10kV phase-shifting box 809,4 The Type 4 0.4 kV phase-adjusting box 807 consists of four line-connecting copper plates 803, and each line-connecting copper plate 803 is equipped with four connectors 804. The Type 3 10kV phase-adjusting box 808 consists of three line-connecting copper plates 803, and each line-connecting copper plate 803 is equipped with three connectors 804. The Type 6 10 kV phase-adjusting box 809 consists of 6 line connection copper plates 803, and each line connection copper plate 803 is equipped with 3 connectors 804.

[0072] Example 2:

[0073] The specific application scenarios for phase-shifting boxes in the switching of 10 kV double-circuit lines on the same pole and single-pole lines with 0.4 kV single-trail lines are as follows:

[0074] 10kV Scenario 1: Single-pole line T-connection to switch, such as Figure 8 As shown;

[0075] Specific connection methods are as follows: Figure 9 As shown, lines ABC enter the phase adjustment box 8, and the three phase lines ABC are respectively connected to three line connection copper plates 803, which can realize the three lines on the upper and lower sides without crossing.

[0076] 10kV Scenario 2: Single-pole line connection on both sides, such as... Figure 10 As shown;

[0077] Specific connection methods are as follows: Figure 11As shown, lines ABC enter phase adjustment box 8, and the three phase lines ABC are respectively connected to three line connection copper plates 803, which can realize the three lines on the left and right sides without crossing.

[0078] 10kV Scenario 3: Two straight lines connected on the same pole, such as... Figure 12 As shown;

[0079] An additional phase-adjusting device is added to both the north and south sides to correct the phase sequence of the double-circuit lines and connect them.

[0080] North side connection such as Figure 13 As shown in the upper half, the three-phase lines of line CAB enter the phase adjustment box 8 and are respectively connected to the three line connection copper plates 803 to realize the connection of the three lines on this side.

[0081] South side connection such as Figure 13 As shown in the lower half, lines ABC enter the phase adjustment box 8, and the three phase lines ABC are respectively connected to three line connection copper plates 803 to realize the connection of three lines on this side.

[0082] 10kV Scenario 4: Two lines connected on the same pole in a double-loop configuration, such as... Figure 14 As shown;

[0083] An additional phase-adjusting device is added to both the north and south sides to correct the phase sequence of the double-circuit lines and connect them.

[0084] Left side connection as Figure 15 As shown in the upper half, the left-side line CAB enters the phase adjustment box 8, and the three-phase lines of CAB are respectively connected to the three line connection copper plates 803, realizing the connection of the three lines on this side.

[0085] The right side connection is as follows Figure 15 As shown in the lower half, the right-side connecting line CBA enters the phase adjustment box 8, and the three-phase lines of CBA are respectively connected to the three line connecting copper plates 803 to realize the connection of the three lines on this side.

[0086] 10kV Scenario 5: Cross-connection of double-circuit straight lines on the same pole, such as... Figure 16 As shown;

[0087] The specific connection method involves installing six 803 copper circuit boards inside the phase adjustment box, connected as follows: Figure 17 As shown, the size of the six copper plates 803 is adjusted and integrated into a phase adjustment device to achieve connection between the left end of the north side and the right end of the south side, and connection between the left end of the south side and the right end of the north side.

[0088] 10kV Scenario 6: Cross-connection of double-loop angle lines on the same pole, such as... Figure 18 As shown;

[0089] Specific connection methods are as follows: Figure 19As shown, the principle is the same as in scenario five, achieving connection between the left end of the north side and the right end of the south side, and between the left end of the south side and the right end of the north side.

[0090] 0.4 kV Scenario 1: Phase modification of a single-pole line, such as... Figure 20 As shown;

[0091] Specific connection methods are as follows: Figure 21 As shown, the upper line ABCN enters the phase adjustment box 8, and the four phase lines ABCN are respectively connected to the four line connecting copper plates 803, which can realize the four lines on the upper and lower sides without crossing.

[0092] 0.4 kV Scenario 2: Single-pole line connection on both sides, such as... Figure 22 As shown;

[0093] Specific connection methods are as follows: Figure 23 As shown, the right-side line ABCN enters the phase adjustment box 8, and the four phase lines ABCN are respectively connected to the four line connection copper plates 803, which can realize the four lines on the left and right sides without cross connection.

[0094] Working principle:

[0095] In practical applications, the phase adjustment device first uses the fixing structure 2 to fix the utility pole 1. Specifically, two clamps 201 are placed on both sides of the utility pole 1, and the first screw 204 and the second screw 207 are rotated. The first fastening nut 203 and the second fastening nut 209 are used to tighten the clamps, making them fit tightly against the utility pole 1, thus completing the fixation. The semi-circular rubber pad 202 effectively increases the friction between the clamps 201 and the utility pole 1, enhancing the stability of the fixation. Meanwhile, the fixing frame in the fixing structure 2... The design of 208 and fixed post 215 allows for adjustment of the distance between the clamps 201 of the fixing structure 2 when needed to accommodate utility poles 1 of different diameters. Through the connecting rod 3 and the vertical rotation node 4, the phase adjustment box 8 can rotate freely in the vertical direction. The combination of the I-shaped cylinder 405, the limiting post 410, and the threaded rod 406 in the vertical rotation node 4 ensures the stability and controllability of the rotation. By rotating the hexagonal nut 407, the position of the limiting post 410 can be adjusted, thereby adjusting the damping and angle range of the vertical rotation. The telescopic rod 5 and... The design of the horizontal rotating node 6 allows the phase adjustment box 8 to extend, retract, and rotate horizontally. The sliding of the sliding column 505 within the sliding cavity 501, along with the constraints of the fixed slide groove 502 and the second limiting slide groove 503, ensures the stable extension and retraction of the telescopic rod 5. The rotation damping 601 in the horizontal rotating node 6 can be adjusted as needed to meet operational requirements under different conditions. The lines to be adjusted are passed through the inlet and outlet holes of the phase adjustment box 8 to adjust the phase sequence of the lines on both sides to the matching position, which is used to place the line connection copper plate 803 and the insulation. The insulation material is 805, and a connector 804 is provided. Multiple line connecting copper plates 803 are placed at 10 kV. Each copper plate is equipped with multiple connectors 804. One side of the line is connected to the line connecting copper plate 803 through the connector 804. After the line enters from one side, it is adjusted to the position corresponding to the line on the other side through the line connecting copper plate 803. The line is output through the wiring hole 801. The phase adjustment box 8 is equipped with a fixing rod 806 to facilitate the fixing of the copper plates. The insulation material 805 is filled in the phase adjustment box 8 to prevent short circuits between the line connecting copper plates 803 and ensure that the switching and modification scheme can be implemented.

[0096] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A phase modulator suitable for use in an electricity distribution network, comprising a telegraph pole (1), characterised in that: A fixed structure (2) is installed in the middle of the pole (1). A connecting rod (3) is fixedly connected to one side of the fixed structure (2). Two vertical rotating nodes (4) are provided at the end of the connecting rod (3) away from the fixed structure (2). One of the vertical rotating nodes (4) is fixedly connected to the connecting rod (3). A telescopic rod (5) is fixedly connected between the two vertical rotating nodes (4). The telescopic end of the telescopic rod (5) is fixedly connected to a horizontal rotating node (6). The horizontal rotating node (6) is fixedly connected to another vertical rotating node (4). A rotating connecting platform (7) is fixedly connected to the end of the vertical rotating node (4) away from the connecting rod (3). A phase adjustment box (8) is fixedly connected to one side of the rotating connecting platform (7). The vertical rotating node (4) includes two symmetrical connecting columns (401). A cavity (403) is provided inside the connecting column (401). An opening (402) is provided on the surface of the connecting column (401). The opening (402) communicates with the cavity (403). An I-shaped cylinder (405) is rotatably connected between the two connecting columns (401). The two ends of the I-shaped cylinder (405) are respectively located inside the two cavities (403). A second sliding pad (409) is fixedly connected to the inner wall of the cavity (403). A first sliding pad (404) is fixedly connected to the inner side of the I-shaped cylinder (405). The first sliding pad (404) and the second sliding pad (409) are rotatably connected. The I-shaped cylinder (405) has rotatably connected limit posts (410) on both ends. The limit posts (410) are rotatably connected to bearings (408). The bearings (408) are fixedly connected to the I-shaped cylinder (405). The end of the limit post (410) away from the I-shaped cylinder (405) is fixedly connected to a threaded rod (406). The threaded rod (406) is threaded with an internal threaded plate (411) in the middle. The internal threaded plate (411) is fixedly connected to the inner wall of the cavity (403). The end of the I-shaped cylinder (405) away from the limit post (410) is fixedly connected to a hexagonal nut (407).

2. A phase modifier suitable for use in an electrical distribution network according to claim 1, characterised in that: The fixing structure (2) includes two clamps (201). A semi-circular rubber pad (202) is fixedly connected to the inner side of the clamp (201). A U-shaped groove (205) and a square groove (206) are provided at one end of the clamp (201). The U-shaped groove (205) and the square groove (206) are arranged vertically. A first screw (204) is rotatably connected to the inner side of the square groove (206). A first fastening nut (203) is threadedly connected to the threaded end of the first screw (204).

3. A phase modifier suitable for use in an electrical distribution network according to claim 2, characterised in that: The clamp (201) is rotatably connected to a second screw (207) at the middle of the end away from the first screw (204). One end of the second screw (207) is slidably connected to another clamp (201). The end of the second screw (207) is threadedly connected to a second fastening nut (209). One end of the clamp (201) is rotatably connected to a fixing frame (208).

4. A phase modifier suitable for use in an electrical distribution network according to claim 3, characterised in that: The fixing frame (208) has two fixing posts (215) on its inner side. The two fixing posts (215) are symmetrically arranged. One of the fixing posts (215) is fixedly connected to the fixing frame (208), and the other fixing post (215) has a slider (214) fixedly connected to one end near the fixing frame (208). The fixing frame (208) has a first sliding groove (210) in the middle of its inner side. The slider (214) is engaged and slidably connected with the first sliding groove (210).

5. A phase-regulating device suitable for power distribution networks according to claim 4, characterized in that: Two fixed columns (215) are provided with a plurality of sliding columns (217) at one end close to each other. A spring (216) is provided in the middle of the sliding column (217). The two ends of the sliding column (217) are slidably connected to the fixed column (215). A limit plate (211) is fixedly connected to the through end of the sliding column (217). Fixed rotating rods (213) are fixedly connected to the upper and lower ends of the fixed column (215). The fixed rotating rods (213) are rotatably connected to the two ends of the fixed frame (208). The middle part of the fixed rotating rods (213) is rotatably connected to the clamp (201). A first limiting groove (212) is provided on both sides of the rotating end of one of the fixed rotating rods (213) and the fixed frame (208). The first limiting groove (212) is located at the upper and lower ends of the movable fixed column (215).

6. A phase modifier suitable for use in an electrical distribution network according to claim 1, characterised in that: The telescopic rod (5) is provided with a sliding cavity (501). The inner wall of the sliding cavity (501) is provided with a plurality of fixed sliding grooves (502) and a second limiting sliding groove (503). The plurality of fixed sliding grooves (502) and the second limiting sliding groove (503) are arranged in a cross shape. A sliding column (505) is slidably connected through the sliding cavity (501). The upper and lower ends of the sliding column (505) are fixedly connected with limiting protrusions (504). The limiting protrusions (504) are engaged and slidably connected with the second limiting sliding groove (503).

7. A phase-regulating device suitable for power distribution networks according to claim 6, characterized in that: Fixed protrusions (506) are fixedly connected to both sides of the sliding column (505). The fixed protrusions (506) are engaged and slidably connected with the fixed slide groove (502). A horizontal rotation node (6) is fixedly connected to the through end of the sliding column (505). A rotation damper (601) is provided in the middle of the horizontal rotation node (6).

8. The phase modifier of claim 1, wherein: A handle (9) is fixedly connected to the top of the phase adjustment box (8). Several wiring holes (801) are provided on both sides of the phase adjustment box (8). Several line connection copper plates (803) are provided inside the phase adjustment box (8). Connectors (804) are fixedly connected to both sides of the line connection copper plates (803). The connectors (804) are slidably connected to the wiring holes (801). Insulating material (805) is provided between the several line connection copper plates (803). Several fixing holes (802) are provided on the surface of the line connection copper plates (803). Fixing rods (806) are slidably connected through the several fixing holes (802). The two ends of the fixing rods (806) are fixedly connected to the inner wall of the phase adjustment box (8).

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