CN113130224A

CN113130224A - Clutch structure of electric operation switch

Info

Publication number: CN113130224A
Application number: CN201911425796.4A
Authority: CN
Inventors: 王恒阳; 张江; 王浩
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16

Abstract

The invention provides a clutch structure of an electric operating switch, which comprises a power shaft and a push plate, wherein the power shaft vertically penetrates through the push plate and is sleeved on a mechanism shaft of an electric switch, the power shaft is provided with a special-shaped boss, the push plate is provided with a special-shaped groove corresponding to the special-shaped boss in the direction, and the power shaft can move up and down along the mechanism shaft of the electric switch, so that the special-shaped boss of the power shaft is staggered and separated from and jointed with the special-shaped groove on the push plate, and the push plate is manually pushed to complete switching on and off at the moment. According to the clutch structure of the electric operating switch, the special-shaped boss structure is adopted, so that bidirectional torque can be transmitted, the electric power and the manual power are matched for positive and negative rotation, the switching and brake separating operation is achieved visually, and the reliable operation in a normal working state can be guaranteed when the remote tripping motor accessory is operated electrically.

Description

Clutch structure of electric operation switch

Technical Field

The present invention relates to a remote operating mechanism of an electrical switch, and more particularly, to a power clutch assembly of a remote operating mechanism of an electrical switch.

Background

At present, a plurality of electric operating mechanisms with remote operation functions are arranged on an electric switch in the market, and the electric operating mechanisms have the function of remotely operating the electric switch across regions, so that the function of a power distribution system is complete.

The electric operating mechanism with the remote operation function can meet the electric operation generally and can also meet the manual operation function in states of maintenance emergency and the like, so that the situation that when power is applied manually, the power is not transmitted to the electric power assembly reversely by the transmission mechanism and is moved in a reverse transmission ratio to damage the power assembly must be considered.

Operating device on the existing market generally only adopts the ratchet mode to realize the separation and reunion effect: the electric power is positively transmitted to drive a single direction to transmit power torque; the manual power moves in the reverse direction, the ratchet wheel slips, and the manual power cannot be transmitted to the electric power, so that the clutch effect that the manual power and the electric power cannot be influenced mutually is realized.

The prior art has the following defects:

1. the electric switch can only realize the electric unidirectional torque transmission, and is not suitable for the requirement of an electric switch which needs to execute positive and negative rotation actions;

2. the electric power and the manual power can only realize the movement in a single direction, namely, the on-off brake and the off-brake need to rotate in the same direction, and the operation is not intuitive.

Disclosure of Invention

The invention aims to provide a clutch structure of an electric operating switch, which is convenient and intuitive to use.

In order to achieve the above object, the clutch structure of the electrically operated switch provided by the present invention comprises a power shaft and a push plate, wherein the power shaft vertically penetrates through the push plate and is sleeved on a mechanism shaft of an electrical switch, the power shaft is provided with a special-shaped boss, the push plate is provided with a special-shaped groove corresponding to the special-shaped boss, and the power shaft can move up and down along the mechanism shaft of the electrical switch, so that the special-shaped boss of the power shaft and the special-shaped groove on the push plate are staggered and disengaged, so that the push plate is manually pushed to complete switching on and off at the moment.

The power shaft is sleeved with the annular piece, and the power shaft is sleeved with the annular piece; when the ring-shaped piece contacts the main support, the main support limits the movable ring-shaped piece to continue to move upwards in a reset mode, and the reset is stopped.

Still further, the annular part is an annular part which can be sleeved on the power shaft and can be fixed.

Still further, the ring member may be a nut.

Furthermore, the end face of the special-shaped boss of the power shaft is provided with a chamfer so as to play a guiding role when the power shaft is jointed with the push plate.

Furthermore, the inner hole of the baffle plate is smaller than the inner diameter of the reset spring, and the outer diameter of the baffle plate is larger than the inner diameter of the reset spring.

Furthermore, the push plate is clamped between an upper bracket and a lower bracket.

Further, the shaped boss of the power shaft can only be disengaged and engaged with the shaped groove staggered layer on the push plate at a specific angle.

Further, the special-shaped boss is of a gear-shaped structure, and correspondingly, the special-shaped groove is a gear-shaped groove.

According to the clutch structure of the electric operating switch, the special-shaped boss structure is adopted, so that bidirectional torque can be transmitted, the electric power and the manual power are matched for positive and negative rotation, the switching and brake separating operation is achieved visually, and the reliable operation in a normal working state can be guaranteed when the remote tripping motor accessory is operated electrically.

Drawings

Fig. 1 is a schematic diagram of a main transmission structure of a clutch structure of an electrically operated switch provided in the present invention.

Fig. 2 is a schematic structural diagram of a main body of an electric operating switch with a main bracket hidden according to an embodiment of the clutch structure of the electric operating switch of the present invention.

Fig. 3 is a schematic diagram of a state that a push plate of a clutch structure of an electric operation switch is separated from a power shaft.

Fig. 4 is a schematic diagram of the engaging state of the push plate and the power shaft of the clutch structure of the electric operating switch of the invention.

Fig. 5 is a schematic view showing a power shaft shaped boss of a clutch structure of an electric operation switch of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to fig. 1 to 3, the ring-shaped member 8 is fixed on the power shaft 1, the blocking piece 4 is sleeved on the power shaft 1, one end of the return spring 3 abuts against the ring-shaped member 8, and the other end abuts against the blocking piece 4, so that upward return force is provided for the ring-shaped member 8 and the power shaft 1. One end of the power shaft 1 is provided with a special-shaped boss 11 (see figure 5) which corresponds to the special-shaped groove 21 on the push plate 2 (see figure 4), when the special-shaped boss 11 is matched with the special-shaped groove 21, the torque can be transmitted, and once the special-shaped boss and the special-shaped groove are separated, the torque can not be transmitted. The push plate 2 can rotate around the axis of the power shaft 1.

In the electric operation state, the power shaft 1 is acted by the reset force of the reset spring 3, so that the special-shaped boss 11 of the power shaft 1 is always in a state of being engaged with the special-shaped groove 21 of the push plate 2 (see fig. 4). When the push plate 2 is driven by external power to rotate, the push plate 2 can drive the power shaft 1 to rotate, and the power shaft 1 drives the switching mechanism shaft 9 to rotate.

When needing manual operation, power axle 1 is pushed down by the external force of manual application, compresses reset spring 3, makes the dysmorphism boss 11 of power axle 1 break away from with the dysmorphism groove 21 of push pedal 2 (see fig. 3), and manual rotation power axle 1 this moment, push pedal 2 can not driven, and manual operation power can not carry out the transmission of force through push pedal 2 promptly.

In addition, the end surface of the special-shaped boss 11 of the power shaft 1 is provided with a chamfer so as to play a guiding role when the power shaft 1 is jointed with the push plate 2, and the clutch is further convenient.

In particular, in the present embodiment, the shaped boss 11 has a gear-like structure with 4 protruding teeth 111, and correspondingly, the shaped slot has four corresponding gear-like slots 211. In fact, for the purpose of the present invention, the shaped projection 11 may also adopt other forms of structures, for example, the number of the teeth 111 may be 1, 2, 3, or any number of them, and the shape of the teeth may also vary, as long as the shaped projection 11 and the shaped groove 21 can cooperate with each other and can transmit torque.

In addition, it should be noted that the present invention has particular advantages when using such a shaped boss 11 and shaped groove 21: by adjusting the characteristics of the special-shaped boss and the special-shaped groove, the power shaft 1 and the push plate 2 can only be jointed at a specific angle, similar to the key unlocking principle. If the modified boss 11 of the present embodiment is a cross boss, by designing the length of each tooth 111 (boss) to be different in size, the gear-shaped groove 211 of the corresponding modified groove 21 is also different in length and matched in length to the tooth 111. In this way, the special-shaped boss 11 can only be matched with the special-shaped groove 21 at a certain angle, and can be changed into joint from staggered layers under the action of the reset spring 3. The advantages of this design are: 1. the foolproof design is adopted, so that the assembly of workers is facilitated; 2. the user uses the logic aspect to avoid the mismatch of manual operation and electric operation: for example, when the user manually switches the switch to the "open" state, the external power stays in the "close" state of the switch, and the clutch can engage and transmit the torque force without the above structural design, so that when the external power is driven to switch from "close" to "open", because the switch is switched to open by the user, the switch stroke is exceeded by rotating in the opening direction again, and the switch is damaged.

The structure, proportion, size and the like of the above-mentioned embodiments of the present invention are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the limit conditions of the present invention, so that the present invention has no technical essence, and any structural modification, proportion relation change or size adjustment should still fall within the scope of the present invention without affecting the function and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right", "middle", "clockwise" and "counterclockwise" used in the present specification are for clarity of description only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not limited by the technical contents of the substantial changes, but also considered to be the scope of the present invention.

Claims

1. The utility model provides an electrically operated switch's separation and reunion structure, its characterized in that, it includes a power shaft (1) and a push pedal (2), push pedal (2) and cover are passed perpendicularly in power shaft (1) on electric switch's mechanism axle (9), power shaft (1) is equipped with special-shaped boss (11), be equipped with on push pedal (2) with special-shaped boss (11) are to special-shaped groove (21) that correspond, power shaft (1) can be followed electric switch's mechanism axle (9) up-and-down motion and are made special-shaped boss (11) of power shaft (1) and special-shaped groove 921 staggered layer on push pedal (2) break away from and the joint so that this moment manual promotion push pedal (2) accomplish the switch and close the separating brake.

2. The clutching structure of an electrically operated switch according to claim 1, further comprising a main support (5) and a ring member (8), wherein said ring member (8) is fitted over said power shaft (1); when the ring-shaped piece (8) is in moving contact with the main bracket (5), the movement is stopped.

3. The clutching structure of the electrically operated switch according to claim 2, further comprising a return spring (3) and a blocking piece (4), wherein the return spring (3) is sleeved on the power shaft (1), and one end of the return spring abuts against the blocking piece (4) and the other end abuts against the annular member (8) so as to provide a return force for the power shaft (1).

4. A clutch structure of an electrically operated switch according to claim 2, characterized in that said ring member (8) is a ring member which can be fitted over the power shaft (1) and fixed.

5. A clutched structure of an electrically operated switch according to claim 3, characterised in that said annular member (8) may be a nut.

6. A clutch structure of an electrically operated switch according to claim 1, wherein: the end face of the special-shaped boss (11) of the manual power shaft (1) is provided with a chamfer so as to play a role in guiding when the power shaft (1) is jointed with the push plate (2).

7. A clutch structure of an electrically operated switch according to claim 1, wherein: the diameter of the inner hole of the baffle plate (4) is smaller than the inner diameter of the reset spring (3), and the outer diameter of the inner hole of the baffle plate is larger than the inner diameter of the reset spring (3).

8. A clutch structure of an electrically operated switch according to claim 5, wherein: the push plate (2) is clamped between an upper bracket (7) and a lower bracket (6).

9. A clutch structure of an electrically operated switch according to claim 1, wherein: the special-shaped boss (11) of the power shaft (1) can only be separated from and engaged with the special-shaped groove (21) on the push plate (2) in a staggered manner at a specific angle.

10. A clutching arrangement for an electrically operated switch according to claim 1, characterised in that said shaped boss (11) is a gear-like structure and correspondingly said shaped groove (21) is a gear-like groove.