Device for protecting external power supply of on-load switch controller

Abstract

The utility model relates to the technical field of controller external power supply protection devices, and discloses a device for protecting an external power supply of an on-load switch controller, which comprises a switch controller, an external power supply is inserted in the right side of the switch controller, a storage assembly is arranged on the right side of the switch controller, and the storage assembly is connected with the external power supply. A limiting groove is formed in the winding roller, a containing assembly is arranged at the rear end of the winding roller, the containing assembly is used for containing an external power source with the redundant length, a protection assembly is arranged at the rear end of the containing assembly, and the protection assembly moves back and forth and protects the external power source on the containing assembly. And then the brake rod drives the winding roller to rotate in the fixed seat through the connecting rod, and the external power supply is wound on the winding roller, so that a worker can conveniently wind the external power supply with redundant length, and the situation that the external power supply is too long, and the external power supply is damaged due to the fact that the external power supply is in contact with the ground in the carrying process is prevented.

Description

Technical Field

[0001] This utility model application relates to the technical field of controller external power supply protection devices, specifically a device for protecting the external power supply of an on-load switch controller. Background Technology

[0002] With the rapid development of power electronics technology, on-load tap changers are increasingly widely used in power systems, especially playing a crucial role in the automation control and protection of power grids. As its core component, the on-load tap changer controller's stable operation directly affects the safety and reliability of the entire power system. However, in practical applications, the external power supply for the on-load tap changer controller often faces various challenges.

[0003] In traditional designs, many on-load switch controllers do not have effective winding or fixing structures for their external power cords. This results in the cords being dragged on the ground during use, which not only affects the cleanliness of the working environment, but more seriously, the cords that are dragged on the ground for a long time are easily stepped on and pulled, which can easily cause damage to the outer sheath of the cords and expose the internal wires, thus leading to safety hazards such as short circuits and electric shocks. Summary of the Invention

[0004] To address the problem that the external power cord of the on-load switch controller is not equipped with an effective winding or fixing structure, which leads to the wire dragging on the ground and getting damaged during use, this utility model provides a device for protecting the external power supply of the on-load switch controller to solve the above-mentioned problem.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for protecting an external power supply to an on-load switch controller includes a switch controller, an external power supply plugged into the right side of the switch controller, a storage component on the right side of the switch controller for winding up excess length of the external power supply, and a protective component at the rear end of the storage component for protecting the external power supply on the storage component by moving back and forth.

[0007] Furthermore, the storage assembly includes a fixed base disposed on the outer wall of the switch controller below the external power supply. A take-up roller rotates within the fixed base. Two sets of limiting plates are symmetrically arranged on the outer wall of the take-up roller. A limiting groove is formed inside the take-up roller. A connecting rod is provided on the front end surface of the take-up roller. A ratchet is provided at the front end of the connecting rod. A brake rod is provided at the front end of the ratchet. A rotating rod is rotatably disposed within the fixed base to the left of the brake rod. A torsion spring is wound around the surface of the rotating rod. An insert rod is provided to the right of the rotating rod. The insert rod engages with the ratchet.

[0008] Furthermore, the brake lever is cylindrical in shape, and its surface is provided with anti-slip texture.

[0009] Furthermore, the inner wall diameter of the limiting groove is equal to the outer wall diameter of the external power supply, and the external power supply slides within the limiting groove.

[0010] Furthermore, the protective assembly includes a movable compartment disposed on the rear end surface of the fixed base, a spring disposed on the inner wall of the movable compartment, a sliding rod slidably disposed within the spring, the inner end of the sliding rod being fixedly connected to the other end of the spring, a threaded block rotating on the surface of the sliding rod, a cover plate disposed on the front end surface of the sliding rod, and a handle disposed on the right end surface of the cover plate.

[0011] Furthermore, the threaded block has a pentagonal design, and a soft pad is provided on the side surface of the threaded block facing the movable compartment.

[0012] Furthermore, the spring is positioned at the middle of the inner wall of the movable chamber, with one end of the spring welded to the inner wall of the movable chamber and the other end of the spring welded to the inner end of the slide rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, by passing one end of the external power supply through the limiting groove and winding it around the take-up roller once, the brake rod drives the take-up roller to rotate in the fixed seat through the connecting rod, and the external power supply is wound onto the take-up roller. This makes it convenient for the staff to wind up the excess length of the external power supply, and prevents the external power supply from being too long and dragging on the ground and rubbing against the ground during the carrying process, thus preventing damage.

[0015] 2. In this utility model, the spring's restoring force drives the slide bar to return to its original position within the movable chamber, and the slide bar moves the cover plate until it comes into contact with the external power supply on the take-up roller. This allows the cover plate to protect the external power supply from impacts and surface damage. At the same time, the cover plate also prevents the external power supply from falling off the take-up roller. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an on-load switch controller according to an embodiment of this application;

[0018] Figure 2 yes Figure 1The above-view three-dimensional structural diagram is shown in the embodiment.

[0019] Figure 3 yes Figure 1 The diagram shows a three-dimensional cross-sectional view of the storage component and the protective component in the embodiment shown.

[0020] Figure 4 yes Figure 2 A magnified structural diagram of point A in the illustrated embodiment.

[0021] The meanings of the reference numerals in the diagram are as follows: 1. Switch controller; 2. External power supply; 3. Storage assembly; 31. Fixing base; 32. Take-up roller; 33. Limiting plate; 34. Limiting groove; 35. Connecting rod; 36. Ratchet; 37. Brake rod; 38. Rotating rod; 39. Torsion spring; 310. Insert rod; 4. Protective assembly; 41. Movable compartment; 42. Spring; 43. Slide rod; 44. Threaded block; 45. Cover plate; 46. Handle. Detailed Implementation

[0022] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Reference Figures 1 to 4 A device for protecting an external power supply to an on-load switch controller includes a switch controller 1, an external power supply 2 plugged into the right side of the switch controller 1, a storage component 3 on the right side of the switch controller 1 for winding up excess length of the external power supply 2, and a protective component 4 at the rear end of the storage component 3 for protecting the external power supply 2 by moving back and forth.

[0024] The storage component 3 includes a fixed base 31 mounted on the outer wall of the switch controller 1 below the external power supply 2. A take-up roller 32 rotates inside the fixed base 31. Two sets of limiting plates 33 are symmetrically arranged on the outer wall of the take-up roller 32. A limiting groove 34 is opened inside the take-up roller 32. A connecting rod 35 is provided on the front end surface of the take-up roller 32. A ratchet 36 is provided at the front end of the connecting rod 35. A brake rod 37 is provided at the front end of the ratchet 36. A rotating rod 38 is rotatably mounted in the fixed base 31 to the left of the brake rod 37. A torsion spring 39 is wound around the surface of the rotating rod 38. An insertion rod 310 is provided on the right side of the rotating rod 38. The insertion rod 310 engages with the ratchet 36.

[0025] By passing one end of the external power supply 2 through the limiting groove 34 and winding it around the take-up roller 32, the brake lever 37 drives the take-up roller 32 to rotate within the fixed seat 31 via the connecting rod 35, and the external power supply 2 is wound onto the take-up roller 32. This makes it easier for the staff to wind up the excess length of the external power supply 2, preventing the external power supply 2 from being too long and dragging on the ground and rubbing against the ground during carrying, thus preventing damage.

[0026] Specifically, the brake lever 37 is cylindrical in shape and has anti-slip texture on its surface. This allows the operator to easily rotate the take-up roller 32 within the fixed base 31 by operating the brake lever 37, making the rotation of the take-up roller 32 more time-saving and labor-saving, while also preventing the operator from slipping their hand when using the brake lever 37.

[0027] Specifically, the inner diameter of the limiting groove 34 is equal to the outer diameter of the external power supply 2. The external power supply 2 slides in the limiting groove 34, which enables the limiting groove 34 to limit the external power supply 2 and prevent the external power supply 2 from falling off the winding roller 32 when the winding roller 32 is winding the external power supply 2.

[0028] As an optimized solution, the protective component 4 includes a movable chamber 41 disposed on the rear end surface of the fixed base 31. A spring 42 is provided on the inner wall of the movable chamber 41. A slide rod 43 slides inside the spring 42. The inner end of the slide rod 43 is fixedly connected to the other end of the spring 42. A threaded block 44 is rotatably threaded on the surface of the slide rod 43. A cover plate 45 is provided on the front end surface of the slide rod 43. A handle 46 is provided on the right end surface of the cover plate 45.

[0029] By utilizing the restoring force of the spring 42 to drive the slide bar 43 to return to its original position within the movable chamber 41, the slide bar 43 drives the cover plate 45 to move until it comes into contact with the external power supply 2 on the take-up roller 32. This allows the cover plate 45 to protect the external power supply 2 from impacts and surface damage. At the same time, the cover plate 45 also prevents the external power supply 2 from falling off the take-up roller 32.

[0030] Specifically, the threaded block 44 has a pentagonal design. The surface of the threaded block 44 facing the movable chamber 41 is provided with a soft pad, which makes it easy for the operator to rotate the threaded block 44 and prevent the threaded block 44 from being screwed too tightly with the slide rod 43. This prevents the threaded block 44 from slipping when rotating the threaded block 44. At the same time, when the spring 42 drives the slide rod 43 to return to its original position and slide within the movable chamber 41, the threaded block 44 is less likely to cause impact damage to the surface of the movable chamber 41.

[0031] Specifically, the spring 42 is located at the middle position on the inner wall of the movable chamber 41. One end of the spring 42 is welded to the inner wall of the movable chamber 41, and the other end of the spring 42 is welded to the inner end of the slide rod 43. This allows the restoring force of the spring 42 to be evenly transmitted to the slide rod 43, enabling the slide rod 43 to slide smoothly in the movable chamber 41, thereby improving the stability of the slide rod 43 when sliding in the movable chamber 41.

[0032] Working principle: In use, first rotate the rotating rod 38 so that it rotates within the fixed seat 31 and twists the torsion spring 39 until the insert rod 310 on the rotating rod 38 rotates out of the tooth groove in the ratchet 36. At this time, one end of the external power supply 2 is passed through the limiting groove 34 and wound around the take-up roller 32 once. Then, the brake rod 37 drives the take-up roller 32 to rotate within the fixed seat 31 through the connecting rod 35, and the external power supply 2 is wound onto the take-up roller 32 until the external power supply 2 is wound up. At this time, the restoring force of the torsion spring 39 will drive the rotating rod 38 to reset and rotate within the fixed seat 31, and drive the insert rod 310 to re-engage with the tooth groove on the ratchet 36 through the rotating rod 38, thus achieving the winding of the external power supply 2.

[0033] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A device for protecting the external power supply of an on-load switch controller, characterized in that: Including switch controller (1), the switch controller (1) right side is inserted with external power supply (2), the switch controller (1) right side is equipped with storage component (3), the storage component (3) is used to roll up the extra length of external power supply (2), the storage component (3) rear end is equipped with protection component (4), the protection component (4) is through moving back and forth and carries out protection to the external power supply (2) on storage component (3).

2. The apparatus for protecting an external power supply of a load switch controller according to claim 1, characterized by: The storage component (3) includes a fixed seat (31) disposed on the outer wall of the switch controller (1) below the external power supply (2), a winding roller (32) rotatably disposed in the fixed seat (31), two sets of limiting plates (33) symmetrically disposed on the outer wall of the winding roller (32), a limiting groove (34) formed in the winding roller (32), a connecting rod (35) disposed on the front end surface of the winding roller (32), a ratchet wheel (36) disposed on the front end of the connecting rod (35), a brake lever (37) disposed on the front end of the ratchet wheel (36), a rotating rod (38) rotatably disposed in the fixed seat (31) on the left side of the brake lever (37), a torsion spring (39) wound on the surface of the rotating rod (38), and a plug rod (310) disposed on the right side of the rotating rod (38), the plug rod (310) engaged with the ratchet wheel (36).

3. The apparatus for protecting an external power supply of a load switch controller according to claim 2, characterized by: The brake lever (37) is designed in a cylindrical shape, and the brake lever (37) is provided with anti-skid lines on the surface.

4. The apparatus for protecting an external power supply of a load switch controller according to claim 2, characterized by: The inner wall diameter of the limiting groove (34) is equal to the outer wall diameter of the external power supply (2), and the external power supply (2) slides in the limiting groove (34).

5. The apparatus for protecting an external power supply of a load switch controller according to claim 2, characterized by: The protection component (4) includes a movable bin (41) disposed on the rear end surface of the fixed seat (31), a spring (42) disposed on the inner wall of the movable bin (41), a sliding rod (43) slidably disposed in the spring (42), the sliding rod (43) fixedly connected to the other end of the spring (42), a threaded block (44) threadedly rotatable on the surface of the sliding rod (43), a cover plate (45) disposed on the front end surface of the sliding rod (43), and a handle (46) disposed on the right end surface of the cover plate (45).

6. The apparatus for protecting an external power supply of a load switch controller according to claim 5, characterized by: The threaded block (44) is designed in a pentagonal shape, and a soft pad is disposed on the surface of one side of the threaded block (44) facing the movable bin (41).

7. The apparatus for protecting an external power supply of a load switch controller according to claim 5, characterized by: The spring (42) is disposed at the middle position on the inner wall of the movable bin (41), one end of the spring (42) is welded to the inner wall of the movable bin (41), and the other end of the spring (42) is welded to the inner end of the sliding rod (43).

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