Electro-hydraulic clutching mechanism for operating mechanism

Abstract

The utility model discloses a hand electric clutch structure of operating mechanism is provided in operating shaft one side, including interlock lever and travel switch, and travel switch is provided with button, and interlock lever rotatably sets up between operating shaft and travel switch, is provided with fender arm and pressure arm on interlock lever, and fender arm removes from the insertion path of operating handle or the insertion path of operating handle is shielded through rotating, and pressure arm is pressed or releases button through rotating, the button of travel switch and the shielded part of operating handle insertion path of operating shaft are located on the opposite sides of the rotation center of operating shaft. The utility model discloses through the rotation of interlock lever realizes to travel switch operation, has improved the stability of travel switch closing, has guaranteed the stability of signal, makes the power source of operating shaft be effectively cut off, is more favorable to avoid the influence of the stability of travel switch opening and closing due to the deviation, and the reliability is higher.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a manual-electric clutch structure for an operating mechanism. Background Technology

[0002] The operating mechanism can drive the operating shaft to close or open the circuit breaker via a power source. However, when operating electrically, a manual clutch function is required to prevent the operating shaft from suddenly rotating when the handle is inserted, which could cause injury.

[0003] The existing electric clutch mechanism usually adopts a direct-acting structure. The direct-acting drive rod allows a small range of motion and has high precision requirements for the drive head and handle. If the size of the drive head or handle deviates significantly, if the size is too small, the drive rod may not be able to press the micro switch and no signal will be generated. If the size is too large, the micro switch may be damaged. In both cases, the switch cannot be effectively switched to the no-power-source state, and the reliability is insufficient. Utility Model Content

[0004] To address the shortcomings of existing manual priority operating devices, such as limited allowable range of motion and insufficient reliability, the applicant provides a reasonably structured manual-electric clutch structure for the operating mechanism, thereby improving reliability.

[0005] The technical solution adopted in this utility model is as follows: A manual / electric clutch structure for an operating mechanism is provided on one side of the operating shaft, including an interlocking rod and a limit switch. The limit switch is equipped with a button. The interlocking rod is rotatably disposed between the operating shaft and the limit switch. The interlocking rod is equipped with a stop arm and a pressure arm. The stop arm blocks the insertion path of the operating handle by rotation or moves away from the insertion path of the operating handle. The pressure arm presses or releases the button by rotation. The button of the limit switch and the blocked part of the insertion path of the operating handle on the operating shaft are located on opposite sides of the rotation center O5 of the operating shaft.

[0006] As a further improvement to the above technical solution: The stop arm and pressure arm of the interlocking rod are located on opposite sides of its rotation center O1. The rotation center O1 of the interlocking rod is located between the center O2 of the limit switch and the rotation center O5 of the operating shaft. The blocked parts of the insertion path of the limit switch button and the operating handle of the operating shaft are located on opposite sides of the rotation center O1 of the interlocking rod.

[0007] The rotation center O1 of the interlocking rod, the center O2 of the limit switch, and the rotation center O5 of the operating shaft are aligned along a straight line or staggered from each other.

[0008] The stop arm and pressure arm of the interlocking rod are symmetrical.

[0009] The outer side of the stop arm and the pressure arm has a concave arc surface on one side and a convex arc surface on the other side, with the outer edges of the concave arc surface and the convex arc surface connected.

[0010] The side of the interlocking rod facing the operating shaft and the side facing the limit switch are different sides. The side with the concave arc faces the operating shaft, while the side with the convex arc faces the limit switch.

[0011] A torsion spring for resetting is connected to the interlocking rod. One end of the torsion spring is connected to the interlocking rod, and the other end is connected to the fixing piece.

[0012] The interlocking rod and limit switch are connected to the mounting base.

[0013] The mounting base is equipped with a connecting shaft and a connecting platform. The interlocking rod is rotatably inserted into the connecting shaft, and the limit switch is fixedly mounted on the connecting platform.

[0014] The beneficial effects of this utility model are as follows: This invention utilizes the rotation of an interlocking rod to operate the limit switch, thereby unlocking or locking the power supply path to the operating shaft. The interlocking rod allows for a large range of motion; even if the operating handle has dimensional deviations (too large or too small), most of these deviations are absorbed by the interlocking rod, improving the stability of the limit switch closure, ensuring signal stability, and effectively cutting off the power source to the operating shaft, thus enhancing reliability. The interlocking rod and limit switch employ a push-button disconnection and release-button closure interlocking method, which further helps to prevent deviations from affecting the stability of the limit switch's opening and closing, resulting in higher reliability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the interlocking rod.

[0017] Figure 3 This is a three-dimensional structural diagram of a limit switch.

[0018] Figure 4 This is a plan view of the mounting base.

[0019] Figure 5 This is the first installation example of this utility model, where a represents the first state and b represents the second state.

[0020] Figure 6 This is a second installation example of the present invention, where a represents the first state and b represents the second state.

[0021] Figure 7 This is the third installation example of this utility model.

[0022] In the diagram: 1. Interlocking rod; 11. Mounting hole; 12. Stop arm; 13. Pressure arm; 14. Concave arc surface; 15. Convex arc surface; 16. Connecting hole; 2. Limit switch; 21. Button; 3. Mounting base; 31. Mounting position; 32. Connecting shaft; 321. Support platform; 33. Connecting platform; 4. Torsion spring; 5. Operating shaft; 6. Motor cover plate; 7. Motor drive end; 8. Mounting plate. Detailed Implementation

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, this utility model provides a hand clutch structure for an operating mechanism, including an interlocking rod 1, a limit switch 2, a mounting base 3, and a torsion spring 4. The interlocking rod 1 is rotatably connected to the mounting base 3. One end of the torsion spring 4 is connected to the interlocking rod 1, and the other end is connected to the mounting base 3 or other fixed components. The torsion spring 4 is used to reset the interlocking rod 1 after rotation. The limit switch 2 is fixedly mounted on the mounting base 3, located on one side of the interlocking rod 1.

[0025] like Figure 2 As shown, the interlocking rod 1 has a mounting hole 11 in the middle for connecting the mounting base 3. An arm extends outward from the middle of the interlocking rod 1 to opposite sides. The two arms are symmetrically structured. One arm is a stop arm 12, and the other is a pressure arm 13. One side of the outer portion of the stop arm 12 and the pressure arm 13 has a concave arc surface 14, and the other side has a convex arc surface 15. The outer edges of the concave arc surface 14 and the convex arc surface 15 are connected. The stop arm 12 and the pressure arm 13 each have a connecting hole 16 for connecting the torsion spring 4.

[0026] like Figure 3 As shown, the limit switch 2 is equipped with a button 21 for closing or opening, such as... Figure 1 As shown, button 21 faces interlocking rod 1, and the pressure arm 13 of interlocking rod 1 presses or releases button 21 by rotating it. In this embodiment, when button 21 is pressed by interlocking rod 1, limit switch 2 is closed; when button 21 is released by interlocking rod 1, limit switch 2 is open.

[0027] like Figure 4 As shown, the mounting base 3 is provided with a mounting position 31, a connecting shaft 32 is provided in the middle of the mounting position 31, and a connecting platform 33 is provided on one side of the mounting position 31, as shown. Figure 1 As shown, the interlocking rod 1 is rotatably inserted into the connecting shaft 32 through the mounting hole 11, and the limit switch 2 is fixedly mounted on the connecting platform 33. Figure 4As shown, a support platform 321 with a larger shaft diameter is coaxially provided on the inner side of the connecting shaft 32 (the side facing the mounting position 31). The top surface of the support platform 321 forms a support surface to limit and support the interlocking rod 1. After the interlocking rod 1 is installed on the connecting shaft 32, it ensures that the button 21 of the limit switch 2 is on the rotation path of the interlocking rod 1, ensuring the effective operation of the limit switch 2 by the interlocking rod 1.

[0028] Figure 5 , Figure 6 An example of mounting a hand-operated clutch mechanism onto a motor cover plate 6 is shown. The hand-operated clutch mechanism is fixedly connected to the motor cover plate 6 of the operating mechanism via the mounting position 31 of the mounting base 3. The operating shaft 5 passes through the motor cover plate 6. A motor drive end 7 is provided on one side of the motor cover plate 6. The motor drive end 7 is connected to the operating shaft 5 via a transmission structure and provides a power source to the operating shaft 5. The hand-operated clutch mechanism is located on one side of the operating shaft 5. The interlocking rod 1 is located between the operating shaft 5 and the limit switch 2. The stop arm 12 of the interlocking rod 1 can be rotated to block the insertion path of the operating handle or to move away from the insertion path of the operating handle. The operating shaft 5 and the limit switch 2 are located on opposite sides of the interlocking rod 1. The side of the interlocking rod 1 facing the operating shaft 5 and the side facing the limit switch 2 are different sides. The side with the concave arc surface 14 faces the operating shaft 5, and the side with the convex arc surface 15 faces the limit switch 2. The rotation center O1 of the interlocking rod 1 is located between the center O2 of the limit switch 2 and the rotation center O5 of the operating shaft 5. O1, O2, and O5 can be aligned in a straight line or slightly offset from each other. The obstructed parts of the insertion paths of the button 21 of the limit switch 2 and the operating handle of the operating shaft 5 are located on opposite sides of the rotation center O5 of the operating shaft 5 and the rotation center O1 of the interlocking rod 1. Figure 5 As shown, in one installation example, the button 21 of the limit switch 2 is located above the rotation centers O1 and O5, the obstructed part of the insertion path of the operating handle of the operating shaft 5 is located below the rotation centers O1 and O5, the pressure arm 13 of the interlocking rod 1 extends obliquely upward toward the button 21, and the stop arm 12 extends obliquely downward toward the operating shaft 5. Figure 6 As shown, in another installation example, the button 21 of the limit switch 2 is located below the rotation centers O1 and O5, and the obstructed part of the insertion path of the operating handle of the operating shaft 5 is located above the rotation centers O1 and O5. The pressure arm 13 of the interlocking rod 1 extends obliquely downward toward the button 21, and the stop arm 12 extends obliquely upward toward the operating shaft 5. Since the stop arm 12 and the pressure arm 13 of the interlocking rod 1 are symmetrical structures, either arm of the interlocking rod 1 can be selected as the stop arm 12 and the other as the pressure arm 13. Therefore, if the installation orientation of the limit switch 2 needs to be changed due to installation requirements (see reference...), Figure 5 , Figure 6When the limit switch 2 is changed, only the angle of the interlocking rod 1 and the connection method of the torsion spring 4 need to be adjusted. Neither the interlocking rod 1 nor the mounting base 3 needs to be structurally changed to adapt to the change. This not only makes the adjustment more flexible and the application range wider, but also facilitates standardized design and reduces design and spare parts costs.

[0029] Figure 7 An example of mounting the hand clutch mechanism to a mounting plate 8 located away from the motor drive end 7 is shown. The limit switch 2 controls the unlocking or locking of the power supply path to the motor drive end 7 via a remote signal.

[0030] The operating shaft 5 can be an isolation operating shaft, a grounding operating shaft, an energy storage operating shaft, etc. The motor drive end 7 can be the drive end of the isolation mechanism, the drive end of the circuit breaker mechanism, or the drive end of the energy storage mechanism. The manual clutch structure realizes the manual clutch of the operating shaft 5, and cuts off the power supply path of the drive end when the handle is inserted.

[0031] In actual use, the interlocking rod 1 of this utility model has two states: reference Figure 5 a, Figure 6 a. In the first state, the stop arm 12 of the interlocking rod 1 blocks the insertion path of the operating handle, and the pressure arm 13 presses on the button 21 of the limit switch 2. Pressing the button 21 unlocks the power supply path of the motor drive end 7, allowing the motor drive end 7 to provide a power source to the operating shaft 5; Reference Figure 5 b、 Figure 6 b. When the operating handle is inserted into the operating shaft 5 and the interlocking rod 1 enters the second state, the operating handle pushes the stop arm 12 of the interlocking rod 1 away from its insertion path. The interlocking rod 1 rotates around the rotation center O1, and the pressure arm 13 moves away from the button 21 of the limit switch 2. The button 21 pops out, and the power supply path of the motor drive end 7 is locked. The operating shaft 5 can only be operated manually. After the operating handle is removed from the operating shaft 5, the interlocking rod 1 returns to its original position under the action of the torsion spring 4, restoring to the first state.

[0032] This invention utilizes the rotation of the interlocking rod 1 to operate the limit switch 2, thereby unlocking or locking the power supply path to the operating shaft 5. The interlocking rod 1 allows for a large range of motion; even if the operating handle has dimensional deviations (too large or too small), most of these deviations are absorbed by the interlocking rod 1, improving the stability of the limit switch 2's closure, ensuring signal stability, and effectively cutting off the power source to the operating shaft 5, thus enhancing reliability. The interlocking rod 1 and the limit switch 2 employ a push-button 21 unlocking and release-button 21 locking method, which further helps to prevent deviations from affecting the stability of the limit switch 2's opening and closing, resulting in higher reliability.

[0033] The above description is an explanation of the present utility model and not a limitation thereof. The present utility model can be modified in any form without departing from its spirit.

Claims

1. A manual-electric clutch structure for an operating mechanism, disposed on one side of an operating shaft (5), comprising an interlocking rod (1) and a limit switch (2), wherein the limit switch (2) is provided with a button (21), characterized in that: The interlocking rod (1) is rotatably disposed between the operating shaft (5) and the limit switch (2). The interlocking rod (1) is provided with a stop arm (12) and a pressure arm (13). The stop arm (12) blocks the insertion path of the operating handle by rotating or moves away from the insertion path of the operating handle. The pressure arm (13) presses or releases the button (21) by rotating. The blocked parts of the button (21) of the limit switch (2) and the insertion path of the operating handle of the operating shaft (5) are located on opposite sides of the rotation center O5 of the operating shaft (5).

2. The manual / electric clutch structure of the operating mechanism according to claim 1, characterized in that: The stop arm (12) and pressure arm (13) of the interlocking rod (1) are located on opposite sides of its rotation center O1. The rotation center O1 of the interlocking rod (1) is located between the center O2 of the limit switch (2) and the rotation center O5 of the operating shaft (5). The blocked parts of the insertion path of the button (21) of the limit switch (2) and the operating handle of the operating shaft (5) are located on opposite sides of the rotation center O1 of the interlocking rod (1).

3. The manual / electric clutch structure of the operating mechanism according to claim 2, characterized in that: The rotation center O1 of the interlocking rod (1), the center O2 of the limit switch (2), and the rotation center O5 of the operating shaft (5) are aligned along a straight line or staggered from each other.

4. The manual / electric clutch structure of the operating mechanism according to claim 1, characterized in that: The stop arm (12) and pressure arm (13) of the interlocking rod (1) are symmetrical.

5. The manual / electric clutch structure of the operating mechanism according to claim 1, characterized in that: The outer side of the stop arm (12) and the pressure arm (13) is provided with a concave arc surface (14) on one side and a convex arc surface (15) on the other side, and the outer sides of the concave arc surface (14) and the convex arc surface (15) are connected.

6. The manual / electric clutch structure of the operating mechanism according to claim 5, characterized in that: The side of the interlocking rod (1) facing the operating shaft (5) and the side facing the limit switch (2) are different sides. The side with the concave arc surface (14) faces the operating shaft (5), while the side with the convex arc surface (15) faces the limit switch (2).

7. The manual / electric clutch structure of the operating mechanism according to claim 1, characterized in that: A torsion spring (4) for resetting is connected to the interlocking rod (1). One end of the torsion spring (4) is connected to the interlocking rod (1), and the other end is connected to the fixing piece.

8. The manual / electric clutch structure of the operating mechanism according to claim 1, characterized in that: The interlocking rod (1) and the limit switch (2) are connected to the mounting base (3).

9. The manual / electric clutch structure of the operating mechanism according to claim 8, characterized in that: The mounting base (3) is provided with a connecting shaft (32) and a connecting platform (33). The interlocking rod (1) is rotatably inserted into the connecting shaft (32), and the limit switch (2) is fixedly installed on the connecting platform (33).

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