Interlocking, locking, or latching mechanisms (H01H9/20)

Locking device for switching device // 2615495
FIELD: physics, communication.SUBSTANCE: locking device is intended for use in the switching device, has the first compartment (3) with the first closing element (5) and the second compartment (4) with the second closing element (6). The locking device comprises a means (13) of barrier locking, adapted to prevent closing the said first compartment (3) by the said first closing element (5) when the said second closing element (6) is not in the closing position in which access to said second compartment (4) is difficult, and the means (14, 18, 22) of block locking, operably coupled to the said means (13) of barrier locking and adapted to block the said second closing element (6) in the said closing position when the said first closing member (5) is in the corresponding closing position, in which the access to the said first compartment (3) is difficult.EFFECT: invention provides improved safety, ease of maintenance.16 cl, 12 dwg

Protecting device with electric interlock to protect upon power disconnection for used underground explosion-proof frequency converter // 2537704
FIELD: electricity.SUBSTANCE: device contains part that controls switching and part that controls interlock. Part that controls switching contains switching lever (1), sector plate (2) to switch over the breaker and isolated change-over switch (3). Part that controls interlock contains lock button (4), lock installation plate (5) and secondary control point (6). Switching lever (1) is rigidly connected with the sector plate (2) and with isolated change-over switch (3). The lock button (4) is rigidly connected with the lock installation plate (5) and secondary control point (6). Installation pin is secured to the outside surface of the cabinet door. The lock button (4) is electrically connected with the electronic block of the programmable controller and power source. Isolated change-over switch (3) is connected with discharge resistor.EFFECT: stability during use and safety.4 cl, 3 dwg

Blocking device for fast connection key in electrical mechanisms // 2516231
FIELD: electricity.SUBSTANCE: blocked device for a fast connection key in electrical mechanisms consists of an additional device (2), situated at the bottom end of a fast connection key (1) and connected thereto by a region (4) which gives the connection flexibility and allows displacement of the entire device (2) closer to the key (1) by pressing on or separation therefrom and return thereof to the initial position by ceasing the application of pressure which may be applied to the device (2) or to a hook (3), by which the device (2) ends at its bottom end. During rotary displacement of the key (1) and approach to the outer surface (6a) of the housing (6), the end hook (3) of the device (2), which makes up the blocking device, comes into contact with the bottom outer surface (9a) of the bottom protrusion (9), centrally symmetrical to the housing (6), while sliding thereon until said hook is fixed at the top edge (9b) of the protrusion (9), wherein the entire key (1) is fixed in a connection position.EFFECT: preventing accidental displacement of the fast connection key, which leads to separation of the device from the housing and movement of the electrical mechanism into an off position.3 cl, 5 dwg

achine with mechanical drive with on-off mechanism // 2466011
FIELD: machine building.SUBSTANCE: invention refers to power cutoff switches for machines with mechanical drive. Machine with mechanical drive that has on-off mechanism includes housing with supporting surface, control unit connected to supporting surface. Control unit has positions "off", on without interlock" and "on with interlock". Machine also contains device for control unit contraction into position "off" from position "on without interlock". Control unit has first pressure surface for its manual movement from "off" position into "on without interlock" position against contraction means action and second pressure surface for its manual movement from "on without interlock" position into "on with interlock" position. First pressure surface and second pressure surface are adjacent ones and form an angle exceeding 180.EFFECT: safety increase provision.14 cl, 10 dwg

ethod and device to disconnect power supply prior to cover opening // 2459334
FIELD: electricity.SUBSTANCE: method to disconnect power supply prior to cover opening consists in the following: (a) a bolt jacket is fixed to the bolt; (b) a motion sensor is connected to a protection and monitoring module by a wire or wireless method; and (c) the motion sensor is connected to send a command to permit power supply for functioning of electric equipment. When the jacket is removed, the motion sensor starts so that it sends a power cut command for electric equipment or starts an emergency alarm.EFFECT: prevention of gas explosion and its effects when operating with equipment without power cutting.22 cl, 4 dwg

Automatic unloading device for closing spring in air circuit breaker and air circuit breaker with such device // 2370844
FIELD: electric engineering.SUBSTANCE: invention is related to roll-out air circuit breaker, which is able to provide for automatic unloading of closing spring in rolled out condition in roll-out air circuit breaker, and automatic unloading device for closing spring in air circuit breaker. Automatic unloading device for closing spring comprises device for prevention of cam axis rotation installed on cam axis, which provides for loading or unloading of closing spring and arranged with the possibility of cam axis rotation limiting under action of elastic restorative force of closing spring, and device for splitting of device for prevention of cam axis rotation, connected to device for prevention of cam axis rotation and arranged with the possibility of cam axis rotation under action of elastic restorative force of closing spring in compliance with positions, in which main body of air circuit breaker is rolled out of seat.EFFECT: increased reliability of operator protection against risks that might occur due to accidental discharging of device for power accumulation.11 cl, 14 dwg

Interlocking device // 2297684
FIELD: electrical engineering; interlocking mechanisms.SUBSTANCE: proposed interlocking device that can be used for controlling electric circuits of stand-by power change-over systems has casing 1, control component in the form of spring-loaded trapezoidal crank 2, two pairs of hinged levers 3 and connecting rod 4, as well as lever 5 and connecting rod 6. Device also has retainer 7 made in the form of thin rod hinged to trapezoidal crank 2 mounted on reed spring 8 within casing 1. Levers 3 and 5 are mounted on axle 9 for turning relative to one another in vertical plane and provided with pushers 10 and 11 joined with handle grips 12 and 13 of modular circuit breakers being interlocked. Connecting rods 4 and 6 are hinge-mounted on axle 16 for turning relative to one another in vertical plane and hinged to levers 3 and 5, respectively; connecting rods 4 and 5 alternately engage opposite ends of trapezoidal crank 2. Ends of retainer 7 are inserted in holes 17 and 18 of casing 1 for reciprocation under action of trapezoidal crank 2 and for alternate engagement of contact systems 19 and 20 of respective circuit breakers 14 and 15. Retainer 7 is joined to trapezoidal crank by means of hinge 21.EFFECT: simplified design, reduced size, facilitated maintenance, enlarged functional capabilities.1 cl, 4 dwg

Device incorporating electromagnetic drive for interlocking control device components with external drive // 2257633
FIELD: electrical engineering; control devices including those preventing movement of control device components with external drive.SUBSTANCE: proposed device has case 1 with cover 7 accommodating control rod 16 installed in guides between cover 7 and case 1; ball 14 mounted in hole of case 1; and control drive. Novelty is that device is provided in addition with diaphragm 13 tightly sealed under ball 14 in case hole; retainer 10 fitted between diaphragm 13 and internal boss 8 on cover 7 coaxially with armature 17; E-shaped spring 15 secured on control rod 16 to press control rod to case 1 and ball 14, to diaphragm 13 and to rotary retainer 10. Control drive is made in the form of rotary electromagnet incorporating bistable polarized electromagnetic system; spring stops 20 are installed at ends of armature 17 with carriers 19 of control drive.EFFECT: simplified design and enhanced reliability of device incorporating electromagnetic drive.3 cl, 2 dwg

Locking device actuator high voltage switch // 2156005
The invention relates to electrical engineering, in particular to high-voltage apparatus, and may find application in the locking device drives the high-voltage circuit breakers

Locking device actuator // 2125314
The invention relates to electrical engineering

Automatic switch // 2123216

The locking device installations // 2110865
The invention relates to a locking device installations, for example, substations and switchgear power plants

The latch switch // 2035781
The invention relates to electrical engineering, in particular to electrical apparatus
 
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