CN212303596U

CN212303596U - Operating mechanism of isolating switch

Info

Publication number: CN212303596U
Application number: CN202021355082.9U
Authority: CN
Inventors: 黄甫; 叶金飞; 万成峰; 彭小华; 陈宪国; 沈理孟; 王世浩
Original assignee: One Two Three Electric Co ltd
Current assignee: One Two Three Electric Co ltd
Priority date: 2020-07-12
Filing date: 2020-07-12
Publication date: 2021-01-05
Anticipated expiration: 2030-07-12

Abstract

The utility model discloses an isolator operating device, include: the bracket is used for mounting the operating mechanism on the base, and a locking shaft is fixed on the bracket; the bottom of the lever is supported at a fulcrum on the bracket, the lever can rotate around the fulcrum, and the upper part of the lever is provided with an operating handle; the lower ends of the two main springs are connected to the transmission assembly, and the upper ends of the two main springs are connected to the upper part of the lever; the transmission assembly is used for connecting the rotating shaft with the lever in a linkage mode, the jump buckle is arranged in the transmission assembly, the lever drives the jump buckle to act when rotating, and when the lever rotates to a brake separating position, the main spring exerts a pulling force effect on the transmission assembly, so that the jump buckle is abutted against the locking shaft, and a locking state is formed. The utility model discloses well operating device's is rational in infrastructure, can follow the problem of design fundamental solution thread slipping, has left out the partial part among the circuit breaker operating device simultaneously (hasp, detain again, traction lever, spring etc.), and simple structure is reliable, convenient assembling, reduction in production cost.

Description

Operating mechanism of isolating switch

Technical Field

The utility model relates to a technical field is made to the isolator, concretely relates to isolator's operating device.

Background

The isolating switch is mainly used for isolating a power supply, switching operation and connecting and disconnecting a low-current circuit. The disconnector is a switching device in which, in the open position, there is an insulation distance and an obvious disconnection mark between the contacts that meet the specified requirements, and, in the closed position, it is able to carry the current under normal loop conditions and under abnormal conditions (for example, short-circuit) for a specified time.

In low-voltage electrical appliances, a PC-grade dual-power supply product consisting of disconnecting switches derived from circuit breakers is generally utilized to reduce the production cost of the electrical appliances. However, in the existing PC-class dual power supply product, an electromagnetic (thermal) tripping system in the original molded case circuit breaker is directly removed, three buckles (tripping, locking and re-buckling) and a draw bar of a circuit breaker operating mechanism are reserved, a risk of product sliding is caused, a switch can not be switched on, the assembly of a product mechanism is complex, the efficiency is low, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a isolator's operating device that structure is simple reasonable relatively can keep jumping the locking state who detains better, prevents to take place the thread slipping condition.

To achieve the purpose, the utility model adopts the following technical proposal:

an operating mechanism of a disconnector is provided, comprising:

the bracket is used for mounting the operating mechanism on a base, and a locking shaft is fixed on the bracket;

the rotating shaft is rotatably arranged on the base, and a moving contact is arranged on the rotating shaft;

the bottom of the lever is supported at a fulcrum on the bracket, the lever can rotate around the fulcrum, and the upper part of the lever is provided with an operating handle;

the lower ends of the two main springs are connected to the transmission assembly, and the upper ends of the two main springs are connected to the upper part of the lever;

the transmission assembly is used for connecting the rotating shaft with the lever in a linkage mode, a jump buckle is arranged in the transmission assembly, the lever is driven to move when rotating, and when the lever rotates to a brake separating position, the main spring exerts a tensile force on the transmission assembly to enable the jump buckle to be abutted against the locking shaft to form a locking state.

As a preferable scheme, a groove is formed at the first end of the jump buckle, and the jump buckle is abutted against the locking shaft through the groove to form a locking state of the locking shaft and the jump buckle.

As a preferable scheme, two opposite mounting holes are formed in the bracket, and the locking shaft penetrates through the two mounting holes in sequence and then is arranged on the bracket.

As a preferable scheme, the front and rear ends of the locking shaft are respectively fastened with a snap spring, and the snap springs limit the locking shaft on the bracket.

As a preferred scheme, the second end of the jump buckle is rotatably mounted on the support through a mounting shaft, a limiting part is arranged on the mounting shaft, the jump buckle is limited in the axial direction of the mounting shaft through the limiting part, and two ends of the mounting shaft are connected to the support.

As a preferred solution, the transmission assembly further comprises:

a lower connecting rod, one end of which is connected to the rotating shaft through a hinge shaft;

one end of the upper connecting rod is connected with the other end of the lower connecting rod through a connecting shaft, the other end of the upper connecting rod penetrates through a fixing hole in the jump buckle through a rotating shaft to be connected with the jump buckle, and the lower end of the main spring is connected to the connecting shaft.

Preferably, a driving shaft is arranged on the lever, and the jump buckle is provided with a collision part which is collided with the driving shaft.

The utility model provides an operating device is through setting up the locking axle on the support, and when operating device was in the separating brake state, it was spacing to jump to detain to lock with the locking axle conflict in order to jump to detain, had solved the problem of thread slipping from the design at all, has left out the part (hasp, detain again, traction lever etc.) in the original circuit breaker operating device simultaneously, and the structure is simpler, and it is more convenient to assemble, and manufacturing cost is lower.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of the operating mechanism of the present invention when installed in an isolating switch;

fig. 2 is a schematic structural diagram of an operating mechanism according to the present invention;

fig. 3 is a schematic structural diagram ii of the operating mechanism of the present invention;

fig. 4 is a schematic structural view of the operating mechanism of the present invention with parts omitted.

In the figure: 1. a base; 2. static contact; 3. a support; 3a, mounting holes; 3b, a fulcrum; 4. a moving contact; 5. a contact part; 6. an operating handle; 7. a lower connecting rod; 8. an upper connecting rod; 9. a locking shaft; 10. jumping and buckling; 11. a rotating shaft; 12. a limiting member; 13. a clamp spring; 14. a main spring; 15. installing a shaft; 16. a drive shaft; 17. a lever; 18. a connecting shaft; 19. hinging a shaft; 20. and rotating the shaft.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, in an embodiment of the present invention, an operating mechanism of a disconnecting switch is provided, including:

the bracket 3 is used for mounting the operating mechanism on the base 1, and a locking shaft 9 is fixed on the bracket 3;

the rotating shaft 11 is rotatably arranged on the base 1, and the moving contact 4 is arranged on the rotating shaft 11;

a lever 17, the bottom of which is supported at a fulcrum 3b on the bracket 3, the lever 17 can rotate around the fulcrum 3b, and the upper part of the lever 17 is provided with an operating handle 6;

the lower ends of the two main springs 14 are connected to a transmission assembly, and the upper ends of the two main springs 14 are connected to the upper part of the lever 17;

the transmission assembly is used for connecting the rotating shaft 11 with the lever 17 in a linkage manner, the transmission assembly is provided with the jump buckle 10, the lever 17 drives the jump buckle 10 to act when rotating, and when the lever 17 rotates to a brake separating position, the main spring 14 exerts a tensile force on the transmission assembly, so that the jump buckle 10 is abutted against the locking shaft 9 to form a locking state.

The operating mechanism in this embodiment is through setting up locking axle 9 on the support, and when operating mechanism was in the separating brake state, jump detain 10 and the conflict of locking axle 9 is spacing in order to lock jump detain 10, has solved the problem of thread slipping from the design fundamentally, has left out the part (like hasp, detain again, traction lever etc.) in the original circuit breaker operating mechanism simultaneously, and the structure is simpler, and the assembly is more convenient, and manufacturing cost is lower.

Specifically, referring to fig. 3 and 4, a groove 10a is formed in a first end 101 of the jump buckle 10, the jump buckle 10 abuts against the locking shaft 9 through the groove 10a to form a locking state of the locking shaft 9 and the jump buckle 10, and a better locking effect can be achieved through the matching of the groove 10a and the locking shaft 9.

Referring to fig. 3 and 4, in this embodiment, two opposite mounting holes 3a are formed in the bracket 3, and the locking shaft 9 is disposed on the bracket 3 after sequentially penetrating through the two mounting holes 3 a; further, as a preferred scheme, two front and rear tail ends of the locking shaft 9 are respectively fastened with a snap spring 13, and the snap springs 13 limit the locking shaft 9 on the bracket 3.

As a preferable scheme, the second end of the jump ring 10 is rotatably mounted on the bracket 3 through a mounting shaft 15, the mounting shaft 15 is provided with a limiting member 12, the jump ring 10 is limited in the axial direction of the mounting shaft 15 through the limiting member 12, two ends of the mounting shaft 15 are connected to the bracket 3, and the jump ring 10 is limited by the limiting member 12, so that the jump ring 10 is prevented from shifting during mounting and moving, and reliability of movement is ensured.

Referring to fig. 1-3, in the present embodiment, the transmission assembly further includes:

a lower link 7, one end of said lower link 7 being connected to said rotary shaft 11 through a hinge shaft 19;

one end of the upper connecting rod 8 is connected with the other end of the lower connecting rod 7 through a connecting shaft 18, the other end of the upper connecting rod 8 penetrates through a fixing hole 10b formed in the jump buckle 10 through a rotating shaft 20 to be connected with the jump buckle 10, and the lower end of the main spring 14 is connected to the connecting shaft 18.

As a preferred scheme, a driving shaft 16 is arranged on the lever 17, an abutting portion 5 abutting against the driving shaft 16 is arranged on the trip buckle 10, when the lever 10 rotates to the closing position, the trip buckle 10 is pushed to rotate in a direction away from the locking shaft 9 through the abutting of the driving shaft 16 and the abutting portion 5, meanwhile, the rotating shaft 11 is driven to rotate through the action of the transmission assembly, so that the moving contact 4 is driven to contact with the fixed contact 2 in the base 1 to realize closing, when the lever 10 rotates to the opening position, the transmission assembly is pulled to move upwards through the main spring 14 and the moving contact 4 on the rotating shaft 11 is driven to separate from the fixed contact 2 in the base 1 to realize opening, and in the whole process, the abutting portion 5 always abuts against the driving shaft 16.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. An operating mechanism for a disconnector, comprising:

the support (3) is used for installing the operating mechanism on the base (1), and a locking shaft (9) is fixed on the support (3);

the rotating shaft (11) is rotatably arranged on the base (1), and the moving contact (4) is arranged on the rotating shaft (11);

a lever (17), the bottom of which is supported at a fulcrum (3b) on the bracket (3), the lever (17) can rotate around the fulcrum (3b), and an operating handle (6) is arranged at the upper part of the lever (17);

the lower ends of the two main springs (14) are connected to a transmission assembly, and the upper ends of the two main springs (14) are connected to the upper part of the lever (17);

the transmission assembly is used for connecting the rotating shaft (11) with the lever (17) in a linkage mode, a jump buckle (10) is arranged in the transmission assembly, the lever (17) is driven to move when rotating, the lever (17) rotates to a brake separating position, and the main spring (14) exerts a tensile force on the transmission assembly to enable the jump buckle (10) to be abutted against the locking shaft (9) to form a locking state.

2. The operating mechanism of the isolating switch according to claim 1, characterized in that the first end (101) of the trip catch (10) is provided with a groove (10a), and the trip catch (10) and the locking shaft (9) are mutually abutted through the groove (10a) to form a locking state of the locking shaft (9) and the trip catch (10).

3. The operating mechanism of the isolating switch according to claim 1, characterized in that the bracket (3) is provided with two opposite mounting holes (3a), and the locking shaft (9) is arranged on the bracket (3) after successively penetrating through the two mounting holes (3 a).

4. The operating mechanism of the isolating switch according to claim 3, characterized in that a snap spring (13) is fastened to each of the front and rear ends of the locking shaft (9), and the snap springs (13) limit the locking shaft (9) on the bracket (3).

5. The operating mechanism of the disconnecting switch according to claim 2, wherein the second end of the trip catch (10) is rotatably mounted on the bracket (3) by a mounting shaft (15), a limiting member (12) is provided on the mounting shaft (15), the trip catch (10) is limited by the limiting member (12) in the axial direction of the mounting shaft (15), and both ends of the mounting shaft (15) are connected to the bracket (3).

6. The operating mechanism of the disconnector according to claim 1, characterized in that the transmission assembly further has:

a lower link (7), one end of the lower link (7) being connected to the rotary shaft (11) through a hinge shaft (19);

the upper connecting rod (8) is connected with one end of the lower connecting rod (7) through a connecting shaft (18), the other end of the upper connecting rod (8) penetrates through a fixing hole (10b) formed in the jump buckle (10) through a rotating shaft (20) to be connected with the jump buckle (10), and the lower end of the main spring (14) is connected onto the connecting shaft (18).

7. The operating mechanism of a disconnecting switch according to any of claims 1 to 6, wherein a driving shaft (16) is provided on the lever (17), and the jump button (10) has an interference portion (5) that interferes with the driving shaft (16).