Transformer operating mechanism
By designing an anti-touch mechanism in the transformer operating mechanism and using the circumferential and axial limiting mechanisms to automatically limit the handwheel, the problem of the existing transformer adjustment handwheel is solved, and the safety and accuracy of operation are improved .
Patent Information
- Application Number
- CN202323366914.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-11
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2033-12-11
AI Technical Summary
The existing transformer adjusting handwheel can still rotate freely when not in operation, which is prone to accidental contact, resulting in gear adjustment errors and damage to circuits and equipment.
An anti-touch mechanism including a circumferential limiting mechanism and an axial limiting mechanism is designed, and is installed between the handwheel and the positioning disc. Through the positioning hole and the positioning block, the telescopic rod and the return spring, the handwheel is automatically opposed. Perform limits to prevent handwheel rotation caused by accidental touch.
It effectively prevents the handwheel from accidentally touching and rotating when gear position is not adjusted, improves the safety and accuracy of operation, and avoids damage to circuits and equipment.
Smart Images
Figure CN222462578U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformer operating mechanisms, in particular to a transformer operating mechanism. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are primary coil, secondary coil and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. General transformers are fixed ratio transformers, and the voltage parameters are not adjustable. Voltage adjustable transformers usually have a more complex structure, and most existing transformers are adjusted by hand wheels.
[0003] The existing regulating hand wheel can still rotate freely when not in operation, which is easy to cause accidental touch. The gear adjustment caused by accidental touch can easily cause circuit failure and damage the circuit and the equipment connected to the circuit. Summary of the invention
[0004] The utility model aims to solve the problems existing in the background technology and proposes a transformer operating mechanism which can prevent accidental touch to adjust the transformer gear position.
[0005] The technical solution of the utility model: a transformer operating mechanism, including a positioning plate, a hand wheel slidably mounted on the positioning plate, and also including:
[0006] An anti-accidental touch mechanism is installed between the handwheel and the positioning plate. The anti-accidental touch mechanism limits the handwheel to shield the handwheel rotation caused by accidental touch when the gear position is not adjusted, and automatically limits the handwheel after the gear position adjustment is completed. The anti-accidental touch mechanism includes a circumferential limiting mechanism and an axial limiting mechanism. The circumferential limiting mechanism fixes the handwheel circumferentially, and the axial limiting mechanism fixes the handwheel axially.
[0007] Optionally, the circumferential limiting mechanism includes a plurality of positioning holes provided on the positioning plate and a plurality of positioning blocks fixedly mounted on the hand wheel.
[0008] Optionally, a limiting mechanism for the sliding distance of the hand wheel on the positioning plate is installed in the positioning plate, and the limiting mechanism includes a mounting seat rotatably installed in the positioning plate, and a plurality of telescopic rods fixedly installed in the mounting seat; a limiting plate is fixedly installed in the handwheel, and the telescopic axis of the telescopic rod is fixedly connected to the limiting plate; a first return spring is fixedly installed between the mounting seat and the limiting plate.
[0009] Optionally, the axial limiting mechanism includes a limiting column slidably mounted on the positioning plate, the limiting column passes through one side of the positioning plate and extends to the interior of the positioning plate, an arc-shaped limiting groove is provided on the handwheel, and a second return spring is fixedly installed between one end of the limiting column located on the outer side of the positioning plate and the positioning plate.
[0010] Optionally, an indication arrow is provided on the hand wheel and a gear position table is provided on the positioning plate.
[0011] Optionally, a limiting hole is provided on the limiting plate, a transmission shaft is fixedly mounted on the limiting hole, the transmission shaft extends into the interior of the transformer, and a transmission gear is fixedly mounted on one end of the transmission shaft located in the transformer.
[0012] Compared with the prior art, the utility model has the following beneficial technical effects: when the gear adjustment is not performed, the hand wheel is positioned axially and circumferentially through the anti-mistouch mechanism to prevent the hand wheel from rotating, thereby avoiding the gear adjustment of the transformer being incorrectly adjusted due to the hand wheel being rotated by external force, which may lead to a dangerous situation; and after the gear adjustment is completed, the hand wheel is automatically fixed again, thereby improving safety and being simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A structural schematic diagram of an embodiment of the utility model is given;
[0014] Figure 2 Provide a schematic diagram of the internal structure of the utility model;
[0015] Figure 3 Provide an exploded view of the utility model;
[0016] Figure 4 A structural schematic diagram of the positioning plate of the utility model is given;
[0017] Figure 5 A structural schematic diagram of the hand wheel of the utility model is given;
[0018] Figure 6 A schematic diagram of the internal structure of the hand wheel of the utility model is given;
[0019] Figure 7 Provide the utility model Figure 2 A partial enlarged view of point A in the middle.
[0020] Figure numerals: 1, hand wheel; 101, indicator arrow; 2, positioning plate; 201, gear table; 3, mounting seat; 301, telescopic rod; 302, first return spring; 303, limit column; 304, second return spring; 305, arc-shaped limit groove; 4, positioning block; 401, positioning hole; 5, limit plate; 501, limit hole; 6, transmission shaft; 601, transmission gear. DETAILED DESCRIPTION
[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0022] Example
[0023] like Figure 1-3 As shown, a transformer operating mechanism proposed by the utility model comprises a positioning disk 2, a hand wheel 1 slidably mounted on the positioning disk 2, a limiting mechanism for the sliding distance of the hand wheel 1 on the positioning disk 2 is installed in the positioning disk 2, the limiting mechanism comprises a mounting seat 3 rotatably mounted in the positioning disk 2, a plurality of telescopic rods 301 fixedly mounted in the mounting seat 3, a limiting plate 5 is fixedly installed in the hand wheel 1, the telescopic shaft of the telescopic rod 301 is fixedly connected to the limiting plate 5, a first reset spring 302 is fixedly installed between the mounting seat 3 and the limiting plate 5, when the hand wheel 1 is pulled outward, the plurality of telescopic rods 301 are driven to extend, and the first reset spring 302 is stretched, when the telescopic rod 301 is extended to the limit length, the hand wheel 1 is limited so that the hand wheel cannot slide, thereby preventing the hand wheel 1 from detaching from the positioning disk 2, and when the hand wheel 1 is released, the first reset spring 302 drives the hand wheel 1 to reset.
[0024] like Figure 2-5 and Figure 7As shown, it also includes an anti-accidental touch mechanism, which is installed between the handwheel 1 and the positioning disk 2. The anti-accidental touch mechanism limits the handwheel 1 to shield the rotation of the handwheel 1 caused by accidental touch. The anti-accidental touch mechanism includes a circumferential limiting mechanism and an axial limiting mechanism. The circumferential limiting mechanism fixes the circumference of the handwheel 1. The circumferential limiting mechanism includes a plurality of positioning holes 401 provided on the positioning disk 2 and a plurality of positioning blocks 4 fixedly installed on the handwheel 1. When the gear adjustment is not performed, the handwheel 1 is pulled under the action of the first reset spring 302. The positioning holes 401 are used to position the positioning blocks 4 circumferentially, thereby preventing the hand wheel 1 from rotating. When the hand wheel 1 needs to be rotated, the hand wheel 1 is pushed outward to disengage the positioning blocks 4 from the positioning holes 401, and the hand wheel 1 can be rotated. The axial limiting mechanism fixes the axial direction of the hand wheel. The axial limiting mechanism includes a limiting column 303 slidably mounted on the positioning disk 2. The limiting column passes through one side of the positioning disk 2 and extends to the inside of the positioning disk 2. The hand wheel 1 is provided with an arc-shaped limiting groove 303. 05, a second return spring 304 is fixedly installed between one end of the limit column 303 located on the outer side of the positioning plate 2 and the positioning plate 2, and the limit column 303 fixes the hand wheel 1 in the axial direction to prevent the hand wheel 1 from axially moving under the influence of external force, thereby preventing the positioning block 4 from escaping from the positioning hole 401, and further preventing the hand wheel 1 from rotating, and preventing the gear position from being adjusted by mistake. When the gear position is adjusted, the limit column 303 is pulled outward to lift the hand wheel 1 upward. After the hand wheel 1 is lifted upward, that is, The limit column 303 can be loosened. At this time, the limit column 303 and the arc-shaped limit groove 305 are in a misaligned state. Under the action of the second return spring 304, the limit column 303 is always against the side wall of the handwheel 1. When the gear adjustment is completed, the handwheel 1 is released, and the handwheel 1 moves downward under the action of the first return spring 302, so that the arc-shaped limit groove 305 moves downward. Under the action of the second return spring 304, the limit column 303 is moved into the arc-shaped limit groove 305, thereby completing the axial positioning of the handwheel 1.
[0025] like Figure 1-3 and Figure 6 As shown, the handwheel 1 is provided with an indicating arrow 101, the positioning plate 2 is provided with a gear table 201, the limiting plate 5 is provided with a limiting hole 501, and a transmission shaft 6 is fixedly installed on the limiting hole 501. The transmission shaft 6 extends into the interior of the transformer, and a transmission gear 601 is fixedly installed at one end of the transmission shaft 6 located in the transformer. When the handwheel 1 is rotated, the transmission shaft 6 is driven to rotate, and then the transmission gear 601 is driven to rotate, and the transmission gear 601 adjusts the gear of the transformer (this is the prior art and will not be described here).
[0026] Working principle: When the gear position is not adjusted, the hand wheel 1 is pulled by the first return spring 302, and multiple positioning blocks 4 are located in the positioning holes 401. The positioning holes 401 position the positioning blocks 4 circumferentially, thereby preventing the hand wheel 1 from rotating. The limiting column 303 fixes the hand wheel 1 in the axial direction to prevent the hand wheel 1 from axially moving under the influence of external force, thereby preventing the positioning blocks 4 from escaping from the positioning holes 401, and then preventing the hand wheel 1 from rotating, preventing accidental adjustment of the gear position. When adjusting the gear position, the limiting column 303 is pulled outward, and the hand wheel 1 is pushed outward to make the positioning When block 4 is out of the positioning hole 401, the hand wheel 1 can be rotated. After the hand wheel 1 is lifted up, the limiting column 303 can be loosened. At this time, the limiting column 303 and the arc-shaped limiting groove 305 are in a misaligned state. Under the action of the second reset spring 304, the limiting column 303 is always against the side wall of the hand wheel 1. When the gear adjustment is completed, the hand wheel 1 is released, and the hand wheel 1 moves downward under the action of the first reset spring 302, so that the arc-shaped limiting groove 305 moves downward. Under the action of the second reset spring 304, the limiting column 303 is moved into the arc-shaped limiting groove 305, thereby completing the axial positioning of the hand wheel 1.
[0027] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A transformer operating mechanism, comprising a positioning plate (2), and a hand wheel (1) slidably mounted on the positioning plate (2), characterized in that: Also includes: An anti-accidental touch mechanism is installed between a hand wheel (1) and a positioning plate (2). The anti-accidental touch mechanism limits the hand wheel (1) to shield the hand wheel (1) from rotation caused by an accidental touch when the gear position is not adjusted, and automatically limits the hand wheel (1) after the gear position adjustment is completed. The anti-accidental touch mechanism includes a circumferential limiting mechanism and an axial limiting mechanism. The circumferential limiting mechanism fixes the hand wheel (1) in the circumferential direction, and the axial limiting mechanism fixes the hand wheel in the axial direction.
2. A transformer operating mechanism according to claim 1, characterized in that: The circumferential limiting mechanism comprises a plurality of positioning holes (401) provided on the positioning plate (2) and a plurality of positioning blocks (4) fixedly mounted on the hand wheel (1).
3. A transformer operating mechanism according to claim 1, characterized in that: A limiting mechanism for the sliding distance of the hand wheel (1) on the positioning disk (2) is installed in the positioning disk (2), and the limiting mechanism comprises a mounting seat (3) rotatably mounted in the positioning disk (2), and a plurality of telescopic rods (301) fixedly mounted in the mounting seat (3); a limiting plate (5) is fixedly mounted in the hand wheel (1); the telescopic shaft of the telescopic rod (301) is fixedly connected to the limiting plate (5); and a first return spring (302) is fixedly mounted between the mounting seat (3) and the limiting plate (5).
4. A transformer operating mechanism according to claim 1, characterized in that: The axial limiting mechanism comprises a limiting column (303) slidably mounted on the positioning disk (2), the limiting column passing through one side of the positioning disk (2) and extending to the interior of the positioning disk (2), an arc-shaped limiting groove (305) is provided on the hand wheel (1), and a second return spring (304) is fixedly mounted between one end of the limiting column (303) located on the outer side of the positioning disk (2) and the positioning disk (2).
5. A transformer operating mechanism according to claim 1, characterized in that: The hand wheel (1) is provided with an indication arrow (101), and the positioning plate (2) is provided with a gear position table (201).
6. A transformer operating mechanism according to claim 3, characterized in that: The limiting plate (5) is provided with a limiting hole (501), a transmission shaft (6) is fixedly mounted on the limiting hole (501), the transmission shaft (6) extends into the interior of the transformer, and a transmission gear (601) is fixedly mounted on one end of the transmission shaft (6) located in the transformer.