Locked, manually controlled turning handle for electric switching devices

FIELD: electricity.

SUBSTANCE: invention relates to a lockable manually-operated turning handle for electric switching devices. Supplementing rotary handle (1) and deep set on rotary handle (5) protective cap (13) is given a shape which corresponds to form of rotary handle (5), and it provides access to locking holes (7) to provide hanging lock with handle for locking rotary handle (1) in closed position. Worn protective cap (13) is fixed on housing (3) by means of connection (19, 21) with geometrical closure.

EFFECT: protection of rotary handle from violation of closed position with application of force.

8 cl, 3 dwg

 



 

Same patents:

FIELD: machine building.

SUBSTANCE: current interrupting device comprises an outer casing and a handle. The first and the second catcher spaces are provided inside the casing. The handle is installed in the first catcher space and protrudes beyond the casing. The device additionally comprises a blocking unit with a blocking head and a sliding movable part. The blocking head is set on the casing and is fitted by a cam wheel part. The sliding movable part can slide in the second catcher space. The sliding movable part comprises the first and the second side plates, a hole and the first bolt. The side plates are interconnected. The hole is provided between the said plates. The cam wheel part passes through the hole between the plates, and the first bolt can be selectively provided on the first or second side plate to block the device.

EFFECT: development of a current interrupting device suitable for blocking unit installation while its design does not require high accuracy at mounting and fastening.

10 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: switch comprises lever controlled to displace between ON position to actuate said tool and OFF position to stop said tool, ON position locking mechanism, OFF position locking mechanism and interlocking control element. ON position locking mechanism locks switch lever at ON position. OFF position locking mechanism locks switch lever at OFF position. Interlocking control element rests on switch lever to displace therewith in lever displacement. Interlocking control element is controlled in first direction to actuate ON position locking mechanism and in second direction to unlock locking mechanism in OFF position. Note here that first direction differs from second direction.

EFFECT: ruled out spontaneous actuation.

19 cl, 26 dwg

FIELD: electrical engineering.

SUBSTANCE: modular electric device (10) contains an essentially box-shaped main housing (11) limiting the inner space to accommodate electromechanical elements. The said housing contains two side surfaces (12, 13), essentially parallel to each other, and a front surface (16). Additionally, the modular electric device (10) contains a control lever (25') projecting from the housing front surface and capable of movement between the two operational positions and fixation in at least one of them. According to the invention, there is a groove (35) made on at least one of the housing side surfaces (12, 13) that passes between two through holes (36, 37) positioned at opposite ends thereof, ensuring access into the groove and open on the front surface. The groove is made so that the fixing element (70) can pass through it that is locked into a slide knot or loop for the control lever (25') fixation.

EFFECT: simplification of design and operation of the modular electric device or several modular electric devices, interconnected or installed in a row.

11 cl, 13 dwg

FIELD: electricity.

SUBSTANCE: invention is related to the field of electrical engineering. Lock device with key for automatic circuit breaker comprises support frame, cases for keys, hooks, clamping elements, locking element and locking part. Locking element may be arranged with the possibility to prevent displacement of structure for changeover of automatic circuit breaker into switched-off condition in process of linear motion due to key rotation. Locking part of case may extend from spring part in direction of external side of support frame with the possibility of entry into spring and displacement in process of several hooks rotation. Each of several hooks comprises connecting part with hole and ledge at one of sides, directed towards the side of locking element, and intended for connection with case for key. Several contact parts of locking element may be serially arranged in case of locking element so that they are in contact with ledges of several hooks with the possibility of interaction with them, accordingly.

EFFECT: reduced assembly space and improved reliability of locking condition.

5 cl, 18 dwg

FIELD: electrical engineering; power-station and substation switchgear installations.

SUBSTANCE: proposed device has switching apparatus position detectors, interlocks on operating mechanisms, and electromagnetic switch; newly introduced in device are receiver and logic circuit. Position detectors are contactless units incorporating nonmagnetic plastic pointer and wireless reed-relay transmitters. Each output of receiver unambiguously relates to continuous coded radio signal of each wireless reed-relay transmitter. Inputs of logic circuit are connected to receiver outputs and outputs, to interlocks. One of receiver outputs unambiguously relates to continuous coded radio signal of wireless reed-relay transmitter of electromagnetic switch and is used for remote connection of logic circuit to power supply.

EFFECT: enhanced operating reliability and reduced maintenance and early-failure charges.

2 cl, 4 dwg

FIELD: electrical engineering; power-station and substation switchgear installations.

SUBSTANCE: proposed device has switching apparatus position detectors, interlocks on operating mechanisms, and electromagnetic switch; newly introduced in device are receiver and logic circuit. Position detectors are contactless units incorporating nonmagnetic plastic pointer and wireless reed-relay transmitters. Each output of receiver unambiguously relates to continuous coded radio signal of each wireless reed-relay transmitter. Inputs of logic circuit are connected to receiver outputs and outputs, to interlocks. One of receiver outputs unambiguously relates to continuous coded radio signal of wireless reed-relay transmitter of electromagnetic switch and is used for remote connection of logic circuit to power supply.

EFFECT: enhanced operating reliability and reduced maintenance and early-failure charges.

2 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: invention is related to the field of electrical engineering. Lock device with key for automatic circuit breaker comprises support frame, cases for keys, hooks, clamping elements, locking element and locking part. Locking element may be arranged with the possibility to prevent displacement of structure for changeover of automatic circuit breaker into switched-off condition in process of linear motion due to key rotation. Locking part of case may extend from spring part in direction of external side of support frame with the possibility of entry into spring and displacement in process of several hooks rotation. Each of several hooks comprises connecting part with hole and ledge at one of sides, directed towards the side of locking element, and intended for connection with case for key. Several contact parts of locking element may be serially arranged in case of locking element so that they are in contact with ledges of several hooks with the possibility of interaction with them, accordingly.

EFFECT: reduced assembly space and improved reliability of locking condition.

5 cl, 18 dwg

FIELD: electrical engineering.

SUBSTANCE: modular electric device (10) contains an essentially box-shaped main housing (11) limiting the inner space to accommodate electromechanical elements. The said housing contains two side surfaces (12, 13), essentially parallel to each other, and a front surface (16). Additionally, the modular electric device (10) contains a control lever (25') projecting from the housing front surface and capable of movement between the two operational positions and fixation in at least one of them. According to the invention, there is a groove (35) made on at least one of the housing side surfaces (12, 13) that passes between two through holes (36, 37) positioned at opposite ends thereof, ensuring access into the groove and open on the front surface. The groove is made so that the fixing element (70) can pass through it that is locked into a slide knot or loop for the control lever (25') fixation.

EFFECT: simplification of design and operation of the modular electric device or several modular electric devices, interconnected or installed in a row.

11 cl, 13 dwg

FIELD: machine building.

SUBSTANCE: switch comprises lever controlled to displace between ON position to actuate said tool and OFF position to stop said tool, ON position locking mechanism, OFF position locking mechanism and interlocking control element. ON position locking mechanism locks switch lever at ON position. OFF position locking mechanism locks switch lever at OFF position. Interlocking control element rests on switch lever to displace therewith in lever displacement. Interlocking control element is controlled in first direction to actuate ON position locking mechanism and in second direction to unlock locking mechanism in OFF position. Note here that first direction differs from second direction.

EFFECT: ruled out spontaneous actuation.

19 cl, 26 dwg

FIELD: machine building.

SUBSTANCE: current interrupting device comprises an outer casing and a handle. The first and the second catcher spaces are provided inside the casing. The handle is installed in the first catcher space and protrudes beyond the casing. The device additionally comprises a blocking unit with a blocking head and a sliding movable part. The blocking head is set on the casing and is fitted by a cam wheel part. The sliding movable part can slide in the second catcher space. The sliding movable part comprises the first and the second side plates, a hole and the first bolt. The side plates are interconnected. The hole is provided between the said plates. The cam wheel part passes through the hole between the plates, and the first bolt can be selectively provided on the first or second side plate to block the device.

EFFECT: development of a current interrupting device suitable for blocking unit installation while its design does not require high accuracy at mounting and fastening.

10 cl, 9 dwg

FIELD: electricity.

SUBSTANCE: invention relates to a lockable manually-operated turning handle for electric switching devices. Supplementing rotary handle (1) and deep set on rotary handle (5) protective cap (13) is given a shape which corresponds to form of rotary handle (5), and it provides access to locking holes (7) to provide hanging lock with handle for locking rotary handle (1) in closed position. Worn protective cap (13) is fixed on housing (3) by means of connection (19, 21) with geometrical closure.

EFFECT: protection of rotary handle from violation of closed position with application of force.

8 cl, 3 dwg

Up!