CN217641160U

CN217641160U - Simple and convenient operating device

Info

Publication number: CN217641160U
Application number: CN202221566525.8U
Authority: CN
Inventors: 黄方计; 贺棉怀; 卯俊广; 汪联峰; 张新雨
Original assignee: Garcia Electrical Appliance Co ltd
Current assignee: Garcia Electrical Appliance Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-10-21
Anticipated expiration: 2032-06-22

Abstract

A simple and convenient operating device is characterized in that: the lock catch is provided with a torsional spring positioning boss, the handle is fixedly connected with a torsional spring which is coaxially arranged with the handle, a connecting arm extends out of the torsional spring, the connecting arm corresponds to the torsional spring positioning boss and can drive the lock catch to rotate, and the second locking surface of the lock catch moves towards the first locking surface of the movable frame. Scheme more than adopting, the torsional spring acts on handle and hasp respectively, is used for the hasp to restore to the throne promptly, is used for the handle to restore to the throne again simultaneously, adopts a torsional spring to realize two functions, for adopting the structure of two elastic components of handle spring and hasp reset spring respectively among the prior art, has not only reduced elastic component quantity for the structure is simpler, moreover reduce cost.

Description

Simple and convenient operating device

Technical Field

The utility model relates to a low-voltage apparatus technical field, concretely relates to simple and convenient operating device.

Background

There is the operating device of a circuit breaker at present, it includes the handle, the handle spring, the connecting rod, the movable frame, the moving contact, the hasp, hasp reset spring, the movable frame is with the coaxial pin joint of hasp, utilize the hasp to press from both sides tight connecting rod with the movable frame under the effect of hasp reset spring, realize the connecting rod conversion, the handle resets under the effect of handle spring after the dropout, its moving contact passes through the pin riveting mode pin joint on the movable frame simultaneously, and fix a position through the arc wall, the tripping spring acts on the moving contact, both satisfied moving contact necessary overtravel, provide dropout action elastic force again, operating device's that significantly reduces whole volume, satisfy the miniaturization requirement.

The tripping spring of the operating mechanism usually adopts a tension spring, one end of the tripping spring is connected with a moving contact, and the other end of the tripping spring is connected with a base of the circuit breaker, however, the moving contact is connected with one side of the tension spring, meanwhile, a wire needs to be welded and is communicated with a wiring terminal, the arrangement of the tension spring can occupy the wiring space between the moving contact and the wire, and the wire is easy to interfere with the wire, so that the wire is difficult to arrange and inconvenient to wire, and the wiring is easy to cause unreliable, and the normal use performance of the circuit breaker is influenced; meanwhile, the lock catch and the handle reset under the action of the lock catch reset spring and the handle spring respectively, and the structure is complex.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the background art, the utility model provides a simple and convenient operating mechanism.

The utility model discloses the technical scheme who adopts: a simple and convenient operating mechanism is arranged on a shell of a circuit breaker and comprises a handle, a connecting rod, a movable frame, a movable contact and a lock catch, wherein the shell comprises a base and an upper cover, a central shaft is arranged on the base, the movable frame is rotatably arranged on the central shaft, the movable contact is rotatably arranged on the movable frame, an arc-shaped positioning groove is formed in the movable contact, the central shaft penetrates through the arc-shaped positioning groove, the lock catch and the movable frame are coaxially pivoted, a first locking surface is formed in the movable frame, a second locking surface is correspondingly formed in the lock catch, and the second locking surface can be matched with the first locking surface of the movable frame to clamp the connecting rod together; the handle is fixedly connected with a torsion spring coaxially arranged with the handle, a connecting arm extends out of the torsion spring, the connecting arm corresponds to the torsion spring positioning boss and can drive the lock catch to rotate, and the second locking surface of the lock catch moves towards the first locking surface of the movable frame.

The moving contact is characterized by further comprising a tension spring, wherein a tension spring connecting hole is formed in the side edge of the moving contact, one end of the tension spring is connected with the tension spring connecting hole, and the other end of the tension spring is connected with the base.

The moving contact corresponds to one side of the tension spring connecting hole and is also provided with a wiring part bent towards the direction of the base.

The upper cover is further provided with a limiting boss, and when the switch is switched on, the limiting boss is in limiting fit with the connecting arm, so that the connecting arm can be separated from the torsion spring positioning boss.

The movable frame is integrally formed with a positioning sleeve, and the positioning sleeve is sleeved on the central shaft and is in rotating fit with the central shaft.

The locating sleeve is a convex structure, the lower part of the locating sleeve is matched with the arc-shaped locating groove, and the lock catch is rotatably arranged on the upper part of the locating sleeve.

The utility model has the advantages that: scheme more than adopting, the torsional spring acts on handle and hasp respectively, is used for the hasp to restore to the throne promptly, is used for the handle to restore to the throne again simultaneously, adopts a torsional spring to realize two functions, for the structure that adopts two elastic components of handle spring and hasp reset spring respectively among the prior art, has not only reduced elastic component quantity for the structure is simpler, moreover reduce cost.

Drawings

Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention.

Fig. 2 is the schematic structural diagram of the circuit breaker of the embodiment of the present invention after the upper cover is removed.

Fig. 3 is a schematic structural diagram of the upper cover according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an operating mechanism according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of the movable frame and the movable contact according to the present invention.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

as shown in the figure, the operating mechanism of the circuit breaker is installed on a shell of the circuit breaker and comprises a handle 3, a connecting rod 4, a movable frame 5, a movable contact 6, a lock catch 7, a tension spring 8 and a torsion spring 9.

The casing of circuit breaker includes base 1, upper cover 2, be formed with center pin 11 on the base 1, be equipped with spacing boss 21 on the upper cover 2.

A positioning sleeve 52 with a convex structure is integrally formed on the movable frame 5, the positioning sleeve 52 is sleeved on the central shaft 11 and is rotatably matched with the central shaft 11, and a first locking surface 51 is further formed on the movable frame 5.

The movable contact 6 is rotatably mounted on the movable frame 5, an arc-shaped positioning groove 61 which takes the rotation center of the movable contact 6 as the center of a circle is formed in the movable contact 6, the arc-shaped positioning groove 61 is just correspondingly matched with the lower part of the positioning sleeve 52, the positioning sleeve 52 penetrates through the arc-shaped positioning groove 61, and the movable contact 6 can be positioned through the arc-shaped positioning groove 61 and the positioning sleeve 52.

The side of the moving contact 6 is provided with a tension spring connecting hole 62, one end of the tension spring 8 is connected with the tension spring connecting hole 62, the other end of the tension spring is connected with the base 1, and the tension spring 8 can provide a tripping elastic force and provide an over-travel elastic force for the moving contact.

The moving contact 6 corresponds one side of extension spring connecting hole 62, still is equipped with the wiring portion 63 of buckling towards base 1 direction, wiring portion 63 is used for with the wire welding, through this wiring portion 63, can increase the area of contact of moving contact and wire, makes simultaneously can stagger each other between wire and the extension spring, not only makes things convenient for the wire to be connected, effectively avoids mutual interference between wire and the extension spring moreover, ensures to move reliable and stable.

The lock catch 7 is coaxially pivoted with the movable frame 5, specifically, the lock catch 7 is rotatably mounted on the upper part of the positioning sleeve 52 and is in limit fit with a convex shoulder of the positioning sleeve 52, so that mutual contact friction between the lock catch 7 and the movable contact 6 can be avoided. The lock catch 7 is formed with a second locking surface 71 corresponding to the first locking surface 51, and the lock catch 7 is further provided with a torsion spring positioning boss 72.

The handle is rotatably arranged on the shell, the torsion spring 9 and the handle 3 are coaxially arranged and are connected with the handle 3, a connecting arm 91 extends out of the torsion spring 9, the connecting arm 91 corresponds to the torsion spring positioning boss 72, and the connecting arm 91 can drive the lock catch 7 to rotate so that the second locking surface 71 of the connecting arm moves towards the first locking surface 51 of the movable frame 5.

The limiting boss 21 is in limiting fit with the connecting arm 91, so that the connecting arm 91 can be separated from the torsion spring positioning boss 72 when the switch is switched on. When the switch is switched on, the limiting effect of the limiting boss 21 on the connecting arm 91 enables the connecting arm 91 to be separated from the torsion spring positioning boss 72 when the switch is switched on, the locking acting force of the lock catch 7 and the movable frame 5 is reduced, and when the switch is released, the release can more easily push the lock catch to unlock, so that the reliability of the releasing action is further ensured.

The connecting rod 4 is a U-shaped connecting rod, one end of the connecting rod is connected with the handle 3, the other end of the connecting rod is connected and matched with the movable frame 5, and one end of the connecting rod 4 connected with the movable frame 5 can be arranged between the first locking surface 51 and the second locking surface 71 and is clamped and fixed by the first locking surface 51 and the second locking surface 71 in a matching way.

The operating mechanism has the following operating principle:

during opening, one end of the connecting rod 4 is arranged between the first locking surface 51 and the second locking surface 71, and the lock catch 7 clamps the connecting rod under the action of the torsion spring 9.

During the action of closing a floodgate, twist grip 3, handle 3 drives the action of connecting rod 4, because the connecting rod is pressed from both sides tightly by hasp 7 and action frame 5, consequently the action of connecting rod 3 can drive the action of action frame 5, action frame 5 drives the action of moving contact 6, realize closing a floodgate, twist grip 3 can drive the action of torsional spring 9 simultaneously, torsional spring 9 drives the action of hasp 7, thereby when guaranteeing the action of closing a floodgate, hasp 7 presss from both sides tight connecting rod 4 with action frame 5 all the time, guarantee the action reliably, after the linking arm 91 of torsional spring 9 and the spacing contact of spacing boss 21, linking arm 91 just can separate gradually with hasp 7.

During the dropout, the release can strike hasp 7, and the action of hasp 7 can make the second locking surface 71 of hasp 7 keep away from first locking surface 51, and connecting rod 4 can't be locked this moment to connecting rod 4 breaks away from on can follow the first locking surface 51 of movable frame 5, and movable frame 5 loses behind connecting rod 4 to its restriction, and movable frame 5 just can realize the dropout with moving contact 6 under the effect of extension spring 8, the snap action. Meanwhile, the handle 3 is reset under the action of the torsion spring 9 and returns to the opening position, the handle 3 drives the connecting rod 4 to move, the end part of the connecting rod returns to the position between the first locking surface 51 and the second locking surface 71, the lock catch 7 is also reset under the action of the torsion spring 9, and the connecting rod 4 is clamped again.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should know that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. A simple and convenient operating mechanism is arranged on a shell of a circuit breaker and comprises a handle (3), a connecting rod (4), a movable frame (5), a movable contact (6) and a lock catch (7), wherein the shell comprises a base (1) and an upper cover (2), a central shaft (11) is arranged on the base (1), the movable frame (5) is rotatably arranged on the central shaft (11), the movable contact (6) is rotatably arranged on the movable frame (5), an arc-shaped positioning groove (61) is formed in the movable contact (6), the central shaft (11) penetrates through the arc-shaped positioning groove (61) to be arranged, the lock catch (7) is coaxially and pivotally connected with the movable frame (5), a first locking surface (51) is formed on the movable frame (5), a second locking surface (71) is correspondingly formed on the lock catch (7), and the second locking surface (71) can be matched with the first locking surface (51) of the movable frame (5) to clamp the connecting rod (4) together;

the method is characterized in that: be equipped with torsional spring location boss (72) on hasp (7), fixedly connected with and torsional spring (9) of its coaxial setting on handle (3), torsional spring (9) extend there are linking arm (91), linking arm (91) are corresponding with torsional spring location boss (72), can order about hasp (7) rotatory, make its second locking face (71) move first locking face (51) direction action of frame (5) towards.

2. The easy operating mechanism of claim 1, wherein: still include extension spring (8), moving contact (6) side is formed with extension spring connecting hole (62), extension spring (8) one end connection extension spring connecting hole (62), other end connection base (1).

3. The easy operating mechanism of claim 2, wherein: the moving contact (6) is corresponding to one side of the tension spring connecting hole (62), and is also provided with a wiring part (63) bent towards the direction of the base (1).

4. The easy operating mechanism of claim 1, wherein: the upper cover (2) is further provided with a limiting boss (21), and when the switch is switched on, the limiting boss (21) is in limiting fit with the connecting arm (91), so that the connecting arm (91) is separated from the torsion spring positioning boss (72).

5. The easy operating mechanism of claim 1, wherein: a positioning sleeve (52) is integrally formed on the movable frame (5), and the positioning sleeve (52) is sleeved on the central shaft (11) and is in rotating fit with the central shaft (11).

6. The easy operating mechanism of claim 5, wherein: the locating sleeve (52) is of a convex structure, the lower portion of the locating sleeve (52) is matched with the arc-shaped locating groove (61), and the lock catch (7) is rotatably arranged on the upper portion of the locating sleeve (52).