A high-voltage anti-misoperation relay protection pressure plate

Abstract

The utility model discloses a kind of anti-misoperation relay protection pressure plate for high voltage, it is related to the field of relay, the technical scheme of the utility model includes box body and gear;The gear is arranged in the inside of the box body, the gear is arranged in rotating shaft, the rotating shaft is rotatably connected with the box body, the end of the rotating shaft extends to the outside of the box body, the rotating shaft fixed with knob in the outside of the box body, locking structure is arranged between the rotating shaft and the box body;The gear is respectively arranged with the conductor slide arm parallel to each other on both sides, two the conductor slide arm is electrically connected with each other by flexible wire, the side wall of the conductor slide arm is provided with the rack engaged with the gear, the conductor slide arm is slidably connected with the box body, the opposite end of two the conductor slide arm extends to the outside of the box body and is respectively provided with pressure hook. Gear drives rack to slide, the conductor slide arm of rack is reversely moved, the movement of the conductor slide arm causes circuit connection to disconnect and form secondary protection.

Description

Technical Field

[0001] This utility model relates to the field of relays, and in particular to a high-voltage relay protection pressure plate to prevent malfunction. Background Technology

[0002] The relay protection circuit board is a very important component of the relay protection device. It is the bridge and link between the protection device and the external wiring, and it is related to whether the protection function and the action output can play a normal role. It is also called the protection circuit board or the trip circuit board.

[0003] Currently, during the use of high-voltage electrical anti-misoperation relay protection pressure plates, the relay protection pressure plates are easily accidentally touched, causing the protection to trip, resulting in the main transformer or unit tripping and damaging the device, thus reducing the protection performance. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-voltage electrical anti-maloperation relay protection pressure plate, which drives the rack to slide through a gear, and the conductor sliding arm of the rack moves in the opposite direction. The movement of the conductor sliding arm causes the circuit connection to be broken, thus forming secondary protection.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-voltage electric anti-maloperation relay protection pressure plate, including a housing and gears;

[0006] The gear is installed inside the box, and the gear is mounted on a rotating shaft. The rotating shaft rotates relative to the box and is engaged with it. The end of the rotating shaft extends to the outside of the box. A knob is fixed to the rotating shaft located outside the box. A locking structure is provided between the rotating shaft and the box.

[0007] Parallel conductor slide arms are provided on both sides of the gear. The two conductor slide arms are electrically connected to each other by a flexible wire. The side wall of the conductor slide arm is provided with a rack that meshes with the gear. The conductor slide arm slides relative to the box body. The opposite ends of the two conductor slide arms extend to the outside of the box body and are respectively provided with a pressure hook.

[0008] The user controls the knob on the outside of the box to rotate, which drives the internal shaft and gears to rotate. The gears then drive the toothed conductor slide arms on both sides to slide in the opposite direction.

[0009] This type of high-voltage electrical anti-misoperation relay protection pressure plate adopts a conductor sliding arm. Through the rotation of the gear, the rack meshing with the gear moves, which is the movement of the conductor sliding arm. The racks on both sides of the gear move in opposite directions. The movement of the conductor sliding arm causes the circuit connection to be broken, forming secondary protection. Even if it is accidentally triggered, the connection can be kept broken to prevent the protection from being damaged due to misoperation, which helps to improve the protection performance.

[0010] Preferably, the housing is provided with a sliding groove, and the side wall of the conductor sliding arm is provided with a sliding plate, the side of which slides into the sliding groove. The sliding groove and the sliding plate can provide guidance for the conductor sliding arm, improving its sliding stability.

[0011] Preferably, the gear and the housing support are provided with torsion springs, and the torsion springs slide inward through the conductor slide arm. The torsion springs can maintain the inward sliding tendency of the conductor slide arm.

[0012] Preferably, a turntable is provided on the lower surface of the gear, and a circular groove adapted to the turntable is provided on the inner wall of the housing. The adaptation of the turntable and the circular groove can significantly improve the stability of gear rotation.

[0013] Preferably, the torsion spring is wound between the circular groove and the turntable. This allows for a more convenient arrangement of the torsion spring, providing power for the gear rotation.

[0014] Preferably, the locking structure includes an external spline segment, a first internal spline hole, and a second internal spline hole. The external spline segment is disposed on the rotating shaft, and the first internal spline hole is disposed on the shaft center of the gear. The first internal spline hole is adapted to the external spline segment. The bottom of the circular groove is disposed on a second internal spline hole, which is adapted to the external spline segment. The rotating shaft achieves the adaptation and separation of the external spline segment and the second internal spline hole through axial sliding. When the rotating shaft is axially pushed, and the external spline segment of the rotating shaft is engaged with both the first and second internal spline holes simultaneously, the turntable cannot rotate relative to the circular groove, thus locking the position of the conductor slide arm relative to the housing and preventing the conductor slide arm from sliding automatically. When the rotating shaft is only engaged with the second internal spline hole, the turntable can rotate relative to the circular groove. At this time, the unlocking can be achieved by rotating the knob or by the gear driving the rack (i.e., the conductor slide arm) under the action of the torsion spring.

[0015] Preferably, the rotating shaft is provided with a limiting protrusion corresponding to the inner wall of the box, and the limiting protrusion restricts the rotating shaft from sliding axially and disengaging from the gear.

[0016] Preferably, the limiting protrusion is located at the end of the rotating shaft away from the circular groove, and a spring is provided between the limiting protrusion and the inner wall of the turntable. The spring pushes the rotating shaft away from the circular groove. By pushing the limiting protrusion with the spring, that is, by pushing the rotating shaft to move away from the circular groove, the outer spline section of the rotating shaft can simultaneously engage with the first inner spline hole and the second inner spline hole. That is, under normal conditions, the relative position of the rotating shaft and the housing can be locked.

[0017] Preferably, the knob is located at the end of the rotating shaft away from the circular groove. This facilitates axial sliding of the rotating shaft from the knob.

[0018] The beneficial effects of this utility model are:

[0019] This solution uses a gear to drive a rack to slide, and sets the conductor slide arm of the rack to move in the opposite direction. The movement of the conductor slide arm causes the circuit connection to be broken, forming a secondary protection. Even if it is accidentally triggered, the connection can be kept broken to prevent the protection from being damaged due to false triggering, which helps to improve the protection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only four of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the exterior of an embodiment of the present utility model;

[0022] Figure 2 This is a side view of the interior of the box according to an embodiment of the present invention (without springs).

[0023] Figure 3 This is a side perspective view of an embodiment of the present utility model;

[0024] Figure 4 This is a cross-sectional view of the slide arm without a conductor according to an embodiment of the present invention;

[0025] The components are as follows: 1. Box body; 2. Gear; 3. Shaft; 4. Knob; 5. Conductor slide arm; 6. Rack; 7. Press hook; 8. Slide plate; 9. Slide groove; 10. Torsion spring; 11. Turntable; 12. Circular groove; 13. External spline section; 14. First internal spline hole; 15. Second internal spline hole; 16. Limiting protrusion; 17. Spring. Detailed Implementation

[0026] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0027] Example

[0028] like Figure 1 As shown, a high-voltage electrical anti-maloperation relay protection pressure plate includes a housing 1 and a gear 2;

[0029] Combination Figure 2As shown, the gear 2 is provided inside the box body 1, the gear 2 is provided on the rotating shaft 3, the rotating shaft 3 is rotatably engaged with the box body 1, the end of the rotating shaft 3 extends to the outside of the box body 1, a knob 4 is fixed on the rotating shaft 3 located outside the box body 1, and a locking structure is provided between the rotating shaft 3 and the box body 1.

[0030] Combination Figure 3 As shown, parallel conductor sliding arms 5 are respectively provided on both sides of the gear 2. The two conductor sliding arms 5 are electrically connected to each other by a flexible wire. The side wall of the conductor sliding arm 5 is provided with a rack 6 that meshes with the gear 2. The conductor sliding arm 5 slides relative to the box body 1. The opposite ends of the two conductor sliding arms 5 extend to the outside of the box body 1 and are respectively provided with a pressure hook 7.

[0031] The user controls the knob 4 outside the control box 1 to rotate, which drives the internal rotating shaft 3 and gear 2 to rotate. The gear 2 drives the conductor sliding arms 5 with racks 6 on both sides to slide in the opposite direction.

[0032] This type of high-voltage electrical anti-misoperation relay protection pressure plate adopts a conductor sliding arm 5. Through the rotation of the gear 2, the rack 6 meshing with the gear 2 moves, which is the movement of the conductor sliding arm 5. The racks 6 on both sides of the gear 2 move in opposite directions. The movement of the conductor sliding arm 5 causes the circuit connection to be disconnected, forming secondary protection. Even if it is accidentally touched, the connection can be kept disconnected to prevent the protection from being misoperated and causing damage to the device, which helps to improve the protection performance.

[0033] The housing 1 is provided with a sliding groove 9, and the side wall of the conductor sliding arm 5 is provided with a sliding plate 8. The side of the sliding plate 8 is slidably engaged with the sliding groove 9. The sliding groove 9 and the sliding plate 8 can provide guidance for the conductor sliding arm 5 and improve its sliding stability.

[0034] The gear 2 and the housing 1 are supported by a torsion spring 10, which slides inward through the conductor slide arm 5. The torsion spring 10 maintains the inward sliding tendency of the conductor slide arm 5.

[0035] The lower surface of the gear 2 is provided with a turntable 11, and the inner wall of the housing 1 is provided with a circular groove 12 that is adapted to the turntable 11. The adaptation between the turntable 11 and the circular groove 12 can significantly improve the rotational stability of the gear 2.

[0036] The torsion spring 10 is wound between the circular groove 12 and the turntable 11. This allows for a more convenient arrangement of the torsion spring 10 to provide power for the rotation of the gear 2.

[0037] Combination Figure 4As shown, the locking structure includes an external spline segment 13, a first internal spline hole 14, and a second internal spline hole 15. The external spline segment 13 is disposed on the rotating shaft 3. The shaft center of the gear 2 is provided with the first internal spline hole 14, which is adapted to the external spline segment 13. The bottom of the circular groove 12 is provided with the second internal spline hole 15, which is adapted to the external spline segment 13. The rotating shaft 3 achieves the adaptation and separation of the external spline segment 13 and the second internal spline hole 15 through axial sliding. When the rotating shaft 3 is axially pushed, and the outer spline section 13 of the rotating shaft 3 is simultaneously engaged with the first inner spline hole 14 and the second inner spline hole 15, the turntable 11 cannot rotate relative to the circular groove 12, thus locking the position of the conductor sliding arm 5 relative to the box 1 and preventing the conductor sliding arm 5 from sliding automatically. When the rotating shaft 3 is only engaged with one inner spline, the turntable 11 can rotate relative to the circular groove 12 first. At this time, the knob 4 can be turned or the gear 2 can drive the rack 6, i.e. the conductor sliding arm 5, to slide under the drive of the torsion spring 10, thereby unlocking the mechanism.

[0038] The rotating shaft 3 is provided with a limiting protrusion 16 on the inner wall of the box body 1. The limiting protrusion 16 restricts the rotating shaft 3 from sliding axially and disengaging from the gear 2.

[0039] The limiting protrusion 16 is located at the end of the rotating shaft 3 away from the circular groove 12. A spring 17 is provided between the limiting protrusion 16 and the inner wall of the turntable 11. The spring 17 pushes the rotating shaft 3 towards the end away from the circular groove 12. By pushing the limiting protrusion 16 through the spring 17, that is, by pushing the rotating shaft 3 in the direction away from the circular groove 12, the outer spline section 13 of the rotating shaft 3 can simultaneously engage with the first inner spline hole 14 and the second inner spline hole 15. That is, under normal conditions, the relative position of the rotating shaft 3 and the housing 1 can be locked.

[0040] The knob 4 is located at the end of the rotating shaft 3 away from the circular groove 12. This allows the rotating shaft 3 to slide axially from the knob 4.

[0041] The beneficial effects of this utility model are:

[0042] This solution uses gear 2 to drive rack 6 to slide, and sets the conductor slide arm 5 of rack 6 to move in the opposite direction. The movement of conductor slide arm 5 causes the circuit connection to be disconnected, forming a secondary protection. Even if it is accidentally touched, the connection can be kept disconnected to prevent the protection from being accidentally activated and causing damage to the device, which helps to improve the protection.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A high-voltage electrical anti-maloperation relay protection pressure plate, characterized in that, Includes a box (1) and gears (2); The gear (2) is provided inside the box (1), and the gear (2) is located on the rotating shaft (3). The rotating shaft (3) rotates relative to the box (1). The end of the rotating shaft (3) extends to the outside of the box (1). A knob (4) is fixed on the rotating shaft (3) located outside the box (1). A locking structure is provided between the rotating shaft (3) and the box (1). Parallel conductor slide arms (5) are provided on both sides of the gear (2). The two conductor slide arms (5) are electrically connected to each other by a flexible wire. The side wall of the conductor slide arm (5) is provided with a rack (6) that meshes with the gear (2). The conductor slide arm (5) slides relative to the box (1). The opposite ends of the two conductor slide arms (5) extend to the outside of the box (1) and are respectively provided with a pressure hook (7).

2. The high-voltage electrical anti-maloperation relay protection pressure plate according to claim 1, characterized in that: The box body (1) is provided with a slide groove (9), and the side wall of the conductor slide arm (5) is provided with a slide plate (8), and the side of the slide plate (8) is slidably engaged with the slide groove (9).

3. The high-voltage electrical anti-maloperation relay protection pressure plate according to claim 1, characterized in that: The gear (2) and the box (1) are supported by a torsion spring (10), and the torsion spring (10) slides inward through the conductor slide arm (5).

4. A high-voltage electrical anti-maloperation relay protection pressure plate according to claim 3, characterized in that: The lower wheel surface of the gear (2) is provided with a turntable (11), and the inner wall of the box (1) is provided with a circular groove (12) that is adapted to the turntable (11).

5. A high-voltage electrical anti-maloperation relay protection pressure plate according to claim 4, characterized in that: The torsion spring (10) is wound between the circular groove (12) and the turntable (11).

6. A high-voltage electrical anti-maloperation relay protection pressure plate according to claim 5, characterized in that: The locking structure includes an external spline segment (13), a first internal spline hole (14), and a second internal spline hole (15). The external spline segment (13) is disposed on the rotating shaft (3). The first internal spline hole (14) is disposed on the shaft center of the gear (2). The first internal spline hole (14) is adapted to the external spline segment (13). The bottom of the circular groove (12) is disposed on the second internal spline hole (15). The second internal spline hole (15) is adapted to the external spline segment (13). The rotating shaft (3) achieves the adaptation and separation of the external spline segment (13) and the second internal spline hole (15) by axial sliding.

7. A high-voltage electrical anti-maloperation relay protection pressure plate according to claim 6, characterized in that: The rotating shaft (3) is provided with a limiting protrusion (16) on the inner wall of the box (1). The limiting protrusion (16) restricts the rotating shaft (3) from sliding axially and disengaging from the gear (2).

8. A high-voltage electrical anti-maloperation relay protection pressure plate according to claim 7, characterized in that: The limiting protrusion (16) is located at one end of the rotating shaft (3) away from the circular groove (12). A spring (17) is provided between the limiting protrusion (16) and the inner wall of the turntable (11). The spring (17) pushes the rotating shaft (3) away from the circular groove (12).

9. A high-voltage electrical anti-maloperation relay protection pressure plate according to claim 8, characterized in that: The knob (4) is located at the end of the rotating shaft (3) away from the circular groove (12).

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