CN216054467U

CN216054467U - Torque crank for manually operating isolating switch

Info

Publication number: CN216054467U
Application number: CN202122618870.3U
Authority: CN
Inventors: 何子森; 荣强; 贾孟麟
Original assignee: Tianjin Alfa Union Electric Co ltd
Current assignee: Tianjin Alfa Union Electric Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-03-15
Anticipated expiration: 2031-10-28

Abstract

The utility model relates to an isolating switch, in particular to a torque crank for manually operating the isolating switch. A torque crank manually operated by an isolating switch comprises a handle, a fixed handle, a rear sleeve, a coupler, a fixed end and a front sleeve. The utility model has the beneficial effects that: the motor and the isolating switch can be protected when the opening and closing of the isolating switch are in place.

Description

Torque crank for manually operating isolating switch

Technical Field

The utility model relates to an isolating switch, in particular to a torque crank for manually operating the isolating switch.

Background

The isolating switch is a switch device which is mainly used for isolating a power supply and switching over, communicating and cutting off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position. Typically used as a high voltage isolation switch.

The partial isolating switch can be manually controlled. The manual crank is used for manually switching on and off the disconnecting switch, but the manual operation of the traditional crank has certain disadvantages, and when the contact of the disconnecting switch is in place, the damage to the motor can be caused if the crank is still rotated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects in the prior art and provides a torque crank manually operated by an isolating switch.

The utility model is realized by the following technical scheme:

a torque crank for manually operating an isolating switch comprises a handle, a fixed handle, a rear sleeve, a coupler, a fixed end and a front sleeve;

the handle comprises a connecting part, a connecting rod and a handle which are fixedly connected in sequence, the connecting part is provided with a polygonal connecting hole, and the extending directions of the handle and the connecting rod are mutually vertical;

the fixing handle is cylindrical, and one end of the fixing handle is provided with a polygonal inserting connecting end inserted into the polygonal connecting hole;

the rear sleeve is sleeved outside the fixed handle;

a first round hole and a second round hole into which the end parts of the fixing handles can be inserted are respectively arranged on two sides of the coupler, and the first round hole and the second round hole are coaxial;

one end of the fixed end is provided with a connector which can be inserted into the second round hole, the other end of the fixed end is provided with a circular counter bore, and the side wall of the circular counter bore is provided with a through groove;

the front sleeve is sleeved outside the fixed end. According to the technical scheme, preferably, the coupler further comprises a rear sheath and a front sheath, wherein the rear sheath and the front sheath are respectively provided with a stepped hole, the rear sheath is sleeved outside the rear sleeve and the coupler, and the front sheath is sleeved outside the front sleeve and the coupler.

The utility model has the beneficial effects that: the motor and the isolating switch can be protected when the opening and closing of the isolating switch are in place. The motor shaft is connected through circular counter bore and logical groove to the stiff end, rotates the handle, and the handle passes through the polygon connecting hole and drives the polygon of fixed handle and insert the link and rotate, and fixed handle drives the stiff end through the shaft coupling and rotates, and the stiff end drives the motor shaft and rotates. Therefore, the opening and closing operation of the isolating switch is manually completed. And when the moving contact of the isolating switch reaches the limit position, the fixed end connected with the motor shaft is subjected to resistance, and the shaft coupling can not transmit torque continuously by continuously rotating the handle, so that the motor and the isolating switch are protected.

Drawings

Fig. 1 shows an overall structural diagram of an embodiment of the present invention.

Fig. 2 shows a schematic view of the overall structure of the embodiment of the present invention after the removal of the rear sheath and the front sheath.

Fig. 3 shows a schematic view of a handle structure of an embodiment of the present invention.

Fig. 4 shows a schematic structural view of a fixing handle of an embodiment of the present invention.

Fig. 5 shows a coupling cross-sectional structural view of an embodiment of the present invention.

Fig. 6 shows a schematic view of a fixed end structure of an embodiment of the present invention.

In the figure: 1. the novel high-speed clutch comprises a fixed handle, a rear sleeve 2, a coupler 3, a fixed end 4, a front sleeve 5, a connecting part 6, a connecting rod 7, a handle 8, a polygonal connecting hole 9, an inserting connecting end 10, a first round hole 11, a second round hole 12, a connector 13, a circular counter bore 14, a through groove 15, a rear sheath 16 and a front sheath 17.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the figure, the manually operated torque crank of the isolating switch comprises a handle, a fixed handle 1, a rear sleeve 2, a coupler 3, a fixed end 4 and a front sleeve 5;

the handle comprises a connecting part 6, a connecting rod 7 and a handle 8 which are fixedly connected in sequence, the connecting part is provided with a polygonal connecting hole 9, and the extending directions of the handle and the connecting rod are mutually vertical;

the fixing handle is cylindrical, and one end of the fixing handle is provided with a polygonal inserting connecting end 10 inserted into the polygonal connecting hole;

the rear sleeve is sleeved outside the fixed handle;

a first round hole 11 and a second round hole 12 which can be inserted into the end parts of the fixing handles are respectively arranged on two sides of the coupler, and the first round hole and the second round hole are coaxial;

one end of the fixed end is provided with a connector 13 which can be inserted into the second round hole, the other end of the fixed end is provided with a round counter bore 14, and the side wall of the round counter bore is provided with a through groove 15;

the front sleeve is sleeved outside the fixed end.

According to the above embodiment, it is preferable that the coupling further comprises a rear sheath 16 and a front sheath 17, the rear sheath and the front sheath are respectively provided with a stepped hole, the rear sheath is sleeved outside the rear sleeve and the coupling, and the front sheath is sleeved outside the front sleeve and the coupling.

The working principle of the embodiment is as follows: the motor shaft is connected through circular counter bore and logical groove to the stiff end, rotates the handle, and the handle passes through the polygon connecting hole and drives the polygon of fixed handle and insert the link and rotate, and fixed handle drives the stiff end through the shaft coupling and rotates, and the stiff end drives the motor shaft and rotates. Therefore, the opening and closing operation of the isolating switch is manually completed. And when the moving contact of the isolating switch reaches the limit position, the fixed end connected with the motor shaft is subjected to resistance, and the shaft coupling can not transmit torque continuously by continuously rotating the handle, so that the motor and the isolating switch are protected.

The utility model has the beneficial effects that: the motor can be protected when the brake is opened and closed in place.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A torque crank for manually operating an isolating switch is characterized in that: comprises a handle, a fixed handle, a rear sleeve, a coupler, a fixed end and a front sleeve;

the rear sleeve is sleeved outside the fixed handle;

the front sleeve is sleeved outside the fixed end.

2. A manually operated torque crank of a disconnector according to claim 1, characterized in that: the rear sheath and the front sheath are respectively provided with a stepped hole, the rear sheath is sleeved outside the rear sleeve and the coupler, and the front sheath is sleeved outside the front sleeve and the coupler.