Visual range transformer tap changer

Abstract

This utility model relates to the field of transformer tap changer technology, and more particularly to a transformer tap changer with visible tap positions. It includes a tap changer body and a push rod. An adjusting disk is rotatably connected to the top of the tap changer body. A mounting assembly is located on the outer side of the adjusting disk, and a rotating assembly is located on the top of the adjusting disk. The push rod is connected to the outer side of the mounting assembly. A positioning assembly is mounted on the top of the tap changer body, and a mounting ring is located on the top of the positioning assembly. Multiple through holes corresponding to corresponding pins are opened on the outer side of the mounting ring, and a sliding rod is slidably connected inside the through holes. A mounting plate is located at the end of the sliding rod away from the adjusting disk. This utility model, through the linkage structure of the mechanical push rod and the adjusting disk, can accurately push out the sliding rod corresponding to the tap position when the adjusting disk is rotated, making the tap changer position clearly identifiable. This purely mechanical transmission method avoids signal interference from electronic sensors and component aging problems, significantly reducing the risk of failure.

Description

Technical Field

[0001] This utility model relates to the field of transformer tap changer technology, and in particular to a transformer tap changer with visible tap positions. Background Technology

[0002] A transformer tap changer is an important component used to adjust the output voltage of a transformer. Its core function is to adapt to fluctuations in grid voltage or changes in load by changing the turns ratio of the transformer windings, thereby ensuring stable output voltage. By switching different taps (tap terminals) of the windings, the turns ratio of the high-voltage side and the low-voltage side is changed, thus fine-tuning the output voltage.

[0003] Existing transformer tap changers have significant limitations in use. They mainly rely on external displays to control tap positions via electrical signals, lacking an intuitive mechanical tap position display structure. This design not only increases the complexity of the system but also leads to a high failure rate. Since tap position monitoring and limiting depend entirely on electronic components, if there is an abnormality in the electrical signal transmission or a display failure, the operator will not be able to accurately determine the current tap position, seriously affecting the safe operation of the transformer. In addition, the installation and maintenance costs of external displays are high, further reducing the overall reliability of the equipment.

[0004] Therefore, to address the problem that existing transformer tap changers rely on external displays and electrical signals to limit tap positions, lacking an intuitive display structure and having a high failure rate, a transformer tap changer with visible tap positions can be designed. Utility Model Content

[0005] To overcome the problem that existing transformer tap changers rely on external displays and electrical signals to limit the tap position, lacking an intuitive tap position display structure and having a high failure rate.

[0006] The technical solution of this utility model is as follows: a transformer tap changer with visible gear position, including a tap changer body; and a top rod. An adjustment disk is rotatably connected to the top of the tap changer body. An installation component is provided on the outer side of the adjustment disk. A rotating component is provided on the top of the adjustment disk. The top rod is connected to the outer side of the installation component. A positioning component is installed on the top of the tap changer body. A mounting ring is provided on the top of the positioning component. Multiple through holes corresponding to pins are opened on the outer side of the mounting ring. A slide rod is slidably connected inside the through holes. A mounting plate is provided at the end of the slide rod away from the adjustment disk. A reset component is provided on the side of the mounting plate near the mounting ring. An marking component is provided on the side of the mounting plate away from the mounting ring.

[0007] Preferably, by setting a push rod, when the adjustment disc is rotated, the mounting component can drive the push rod to rotate synchronously. When rotating to each gear, the push rod will push the corresponding gear slide rod out from the inside of the through hole, so that the operator can intuitively observe the gear position. After rotating past the gear, the slide rod will retract into the through hole under the action of the reset component. This solves the problem that the existing transformer tap changer relies on an external display screen and electrical signals to limit the gear position, which does not have an intuitive gear position display structure and has a high failure rate.

[0008] Preferably, the mounting components include a retaining ring and retaining screws; a retaining ring is provided on the outer side of the adjusting plate, and multiple retaining screws distributed in a circle are connected to the retaining ring, and the retaining ring is fixed to the adjusting plate by the retaining screws.

[0009] Preferably, the positioning component includes a retaining ring and positioning screws; the top of the tap changer body is provided with a retaining ring, and multiple positioning screws are installed on the top of the retaining ring, and the retaining ring is fixed to the tap changer body by the positioning screws.

[0010] Preferably, the reset assembly includes a spring and a fixing seat; the side of the mounting plate near the mounting ring is connected to one end of two springs, and the other end of the springs is provided with a fixing seat, which is fixedly connected to the mounting ring.

[0011] Preferably, the marking component includes a placement box, a transparent plate, and a slot; the placement box is mounted on the side of the mounting plate away from the mounting ring, the top of the placement box has a slot, and the outer side of the placement box has a transparent plate.

[0012] Preferably, the rotating assembly includes a fixing bolt, a fixing block, and a lever; the fixing bolt is installed on the top of the adjusting disc, the fixing block is fixed on the top of the fixing bolt, and the lever is installed on the outside of the fixing block.

[0013] Preferably, the top of the tap changer body has a partition groove between each set of pins, and the ends of the top rod and the slide rod are rounded.

[0014] The beneficial effects of this utility model are:

[0015] Through the linkage structure of the mechanical push rod and the adjustment plate, the corresponding slide rod can be precisely pushed out when the adjustment plate is rotated, making the tap changer position clearly identifiable. This purely mechanical transmission method avoids signal interference from electronic sensors and component aging problems, significantly reducing the risk of failure. Operators can quickly confirm the position status without the aid of instruments, greatly improving operating efficiency and safety. The overall structure is simple and reliable, with low maintenance costs, and is particularly suitable for harsh working environments. This device effectively solves the problem of traditional position indicators being unintuitive, providing strong support for the stable operation of power equipment, and has high practical value and promotional significance. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the mounting ring of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the through hole of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the reset component of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the top rod of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Tap switch body; 2. Adjusting disc; 31. Fixing ring; 32. Fixing screw; 41. Fixing bolt; 42. Fixing block; 43. Toggle block; 5. Top rod; 61. Fixing ring; 62. Positioning screw; 7. Mounting ring; 8. Through hole; 9. Slide rod; 10. Mounting plate; 111. Spring; 112. Fixing base; 121. Placement box; 122. Transparent plate; 123. Slot; 13. Divider groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment: a transformer tap changer with visible settings, including a tap changer body 1; it also includes a top rod 5, an adjusting plate 2 rotatably connected to the top of the tap changer body 1, a mounting assembly provided on the outer side of the adjusting plate 2, a rotating assembly provided on the top of the adjusting plate 2, the top rod 5 connected to the outer side of the mounting assembly, a positioning assembly mounted on the top of the tap changer body 1, a mounting ring 7 provided on the top of the positioning assembly, a plurality of through holes 8 corresponding to pins opened on the outer side of the mounting ring 7, and a sliding rod 9 slidably connected inside the through holes 8. A mounting plate 10 is provided at the end away from the adjustment disc 2. A reset component is provided on the side of the mounting plate 10 near the mounting ring 7, and an marking component is provided on the side of the mounting plate 10 away from the mounting ring 7. By configuring the push rod 5, the mounting component drives the push rod 5 to rotate synchronously during the rotation of the adjustment disc 2. When the adjustment disc 2 rotates to each gear, the push rod 5 will push the corresponding gear slide rod 9 out of the through hole 8, so that the operator can intuitively identify the current gear. After the adjustment disc 2 has rotated past the gear, the reset component will cause the slide rod 9 to automatically retract into the through hole 8.

[0024] Please see Figures 2-5In this embodiment, the mounting assembly includes a fixing ring 31 and fixing screws 32; a fixing ring 31 is provided on the outer side of the adjusting plate 2, and multiple fixing screws 32 are connected to the fixing ring 31 in a circumferentially distributed manner. The fixing ring 31 is fixed to the adjusting plate 2 by the fixing screws 32. By setting the fixing screws 32, the fixing ring 31 and the adjusting plate 2 can be fixedly installed. The positioning assembly includes a fixing ring 61 and positioning screws 62; a fixing ring 61 is provided on the top of the tap changer body 1, and multiple positioning screws 62 are installed on the top of the fixing ring 61. The fixing ring 61 is fixed to the tap changer body 1 by the positioning screws 62. The fixing ring 61 can be fixedly installed to the tap changer body 1 by setting the positioning screw 62. The reset assembly includes a spring 111 and a fixing seat 112. The mounting plate 10 is connected to one end of two springs 111 near the mounting ring 7. The other end of the springs 111 is provided with a fixing seat 112. The fixing seat 112 is fixedly connected to the mounting ring 7. By setting the springs 111, after the slide rod 9 is pushed out by the push rod 5, it will drive the mounting plate 10 to move synchronously. When the mounting plate 10 moves, it can stretch the springs 111. When the push rod 5 is removed, the elastic restoring force of the springs 111 will drive the slide rod 9 to automatically retract.

[0025] Please see Figures 1-5 In this embodiment, the labeling component includes a placement box 121, a transparent plate 122, and a slot 123; the placement box 121 is installed on the side of the mounting plate 10 away from the mounting ring 7, the top of the placement box 121 has a slot 123, and the outside of the placement box 121 is provided with a transparent plate 122. By setting up the placement box 121, the operator can put the resistance value label into the interior of the placement box 121 through the slot 123, thereby facilitating intuitive observation. The rotating component includes a fixing bolt 41, a fixing block 42, and a lever 43; the top of the adjusting plate 2 is mounted with... There is a fixing bolt 41, and a fixing block 42 is fixed on the top of the fixing bolt 41. A lever 43 is installed on the outside of the fixing block 42. By setting the lever 43, a force point is provided for the adjustment plate 2, so that the operator can easily rotate the adjustment plate 2. The top of the tap changer body 1 is provided with a partition groove 13 between each group of pins. The ends of the top rod 5 and the slide rod 9 are both rounded. By setting the partition groove 13, each group of pins can be separated, which is convenient for the operator to observe. In addition, the rounded structure of the top rod 5 and the slide rod 9 makes it easy for the top rod 5 to push the slide rod 9 out.

[0026] During operation, the operator applies force to rotate the adjustment disc 2 using the lever 43. The fixing ring 31 fixed on the outside of the adjustment disc 2 will drive the push rod 5 connected to it to rotate synchronously. When the push rod 5 rotates to the corresponding transformer position, its rounded end will push the slide rod 9 in the corresponding position through hole 8 on the mounting ring 7 outward, causing the mounting plate 10 at its end to slide outward against the tension of the spring 111. At this time, the operator can clearly see the resistance value mark inserted in the box through the transparent plate 122 of the box 121, thus intuitively confirming the current position. When the push rod 5 continues to rotate away from the position with the adjustment disc 2, the elastic restoring force generated by the stretched spring 111 will pull the mounting plate 10 and the slide rod 9 back into the through hole 8 until the next position is pushed out and displayed again by the push rod 5. Throughout the process, the dividing groove 13 on the top of the tap changer body 1 clearly separates each group of pins. Combined with the rounded corner structure of the parts, it ensures smooth ejection and reset, and the mechanical visual indication of the position can be achieved without electrical signals.

[0027] Through the above steps, when the operator rotates the adjusting disc 2, the mounting assembly will drive the push rod 5 to rotate synchronously. During the rotation, each time the push rod 5 passes a gear position, it will push the corresponding gear slide rod 9 outward from the through hole 8, forming a clear physical protrusion mark, thus making the gear position visible. When the adjusting disc 2 continues to rotate away from that gear position, the reset assembly will immediately activate, causing the slide rod 9 to automatically retract into the through hole 8, restoring its original state. This solves the problem that existing transformer tap changers rely on an external display screen and electrical signals to limit the gear position, lacking an intuitive gear position display structure and resulting in a high failure rate.

Claims

1. A visual range transformer tap changer comprising a tap changer body (1) ; characterized in that: It also includes a top rod (5), an adjustment plate (2) is rotatably connected to the top of the tap changer body (1), an installation component is provided on the outside of the adjustment plate (2), a rotating component is provided on the top of the adjustment plate (2), a top rod (5) is connected to the outside of the installation component, a positioning component is installed on the top of the tap changer body (1), an installation ring (7) is provided on the top of the positioning component, a plurality of through holes (8) corresponding to the pins are opened on the outside of the installation ring (7), a slide rod (9) is slidably connected inside the through hole (8), an installation plate (10) is provided at the end of the slide rod (9) away from the adjustment plate (2), a reset component is provided on the side of the installation plate (10) close to the installation ring (7), and an marking component is provided on the side of the installation plate (10) away from the installation ring (7).

2. A visual range transformer tap changer according to claim 1, characterized in that: The mounting components include a retaining ring (31) and a fixing screw (32); a retaining ring (31) is provided on the outside of the adjusting plate (2), and a plurality of fixing screws (32) are connected to the retaining ring (31) in a circular arrangement, and the retaining ring (31) is fixed to the adjusting plate (2) by the fixing screws (32).

3. A transformer tap changer with visible positions according to claim 1, characterized in that: The positioning assembly includes a retaining ring (61) and a positioning screw (62); a retaining ring (61) is provided on the top of the tap changer body (1), and multiple positioning screws (62) are installed on the top of the retaining ring (61). The retaining ring (61) is fixed to the tap changer body (1) by the positioning screws (62).

4. A transformer tap changer with visible positions according to claim 1, characterized in that: The reset assembly includes a spring (111) and a fixing seat (112); the mounting plate (10) is connected to one end of two springs (111) near the mounting ring (7), and the other end of the springs (111) is provided with a fixing seat (112), which is fixedly connected to the mounting ring (7).

5. A transformer tap changer with visible positions according to claim 1, characterized in that: The labeling component includes a placement box (121), a transparent plate (122), and a slot (123); the placement box (121) is installed on the side of the mounting plate (10) away from the mounting ring (7), the top of the placement box (121) is provided with a slot (123), and the outside of the placement box (121) is provided with a transparent plate (122).

6. A transformer tap changer with visible positions according to claim 1, characterized in that: The rotating assembly includes a fixing bolt (41), a fixing block (42), and a lever (43); the fixing bolt (41) is installed on the top of the adjusting plate (2), the fixing block (42) is fixed on the top of the fixing bolt (41), and the lever (43) is installed on the outside of the fixing block (42).

7. A transformer tap changer with visible positions according to claim 1, characterized in that: The top of the tap changer body (1) has a partition groove (13) between each group of pins, and the ends of the top rod (5) and the slide rod (9) are rounded.

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