66results about How to "Reliable interlock" patented technology

The invention discloses a commutation switch type three-phase load imbalance treatment device at least comprising a control part and an execution mechanism. The execution mechanism includes at least one commutation switch. The control part consists of at least one main controller; and a current sensor for detecting current information of a branch grid is also arranged. A signal output terminal of the current sensor is connected with an input terminal of the main controller electrically. And the main controller is connected to a three-phase grid. Each main controller is connected to the at least one commutation switch by wired communication or wireless communication and the commutation switch is electrically connected to the load. Each main controller detects a three-phase unbalanced current, fault information as well as a current phase, and a current load current of the commutation switch controlled by the main controller. On the basis of the unbalanced calculation strategy, calculation is carried out to obtain each switch adjustment target phase and a commutation command is issued. Therefore, large surge current occurrence caused instantaneously during load switching can be avoided; losses resulted from long-term operation of the thyristor can be avoided; and commutation can be carried out without power interruption.

The invention relates to a connection assembly, comprising two connecting modules (1, 2) each with a load housing (51, 52) with the following features: a locking device with a spring locking element (9) and a latch piece (5), a magnet and armature construction and a movement track (60), on which the latch piece (5) can be moved from a closed position to an open position, the locking device, the magnet and armature construction and the movement track (60) cooperating by means of the following features: a. on opening, the connecting modules are moved on the movement track (60), wherein the magnet (8) and armature are moved in opposition and simultaneously the latch piece (5) and the spring locking element (9) are moved in opposition, until the spring locking element (9) is no longer engaged. On closing, the connecting module locks in with the aid of magnetic force. According to the invention, the position of the load housings (51, 52) and the position and form of the movement track (60) are designed such that on moving the connecting module the load housings (51, 52) move together by an amount Delta x against the load FL.

A panel, especially floor panel comprises a core produced of a wood product or a mixture of a wood product/synthetic material. The panel includes a top and a bottom, and is provided with mating hook elements on at least two opposite lateral edges thereof. The first hook element is formed by a profiled section which is essentially open to the top and the second hook element is formed by a profiled section which is essentially open to the bottom. The profiled section on the first hook element forms a projection which is essentially facing the top and on the second hook element forms a projection which is essentially open to the bottom. Two identical panels can be interconnected and interlocked by an essentially vertical joining movement in the horizontal and the vertical direction. At least one of the projections is deviated during the joining movement in the horizontal direction and then snaps into a locking edge which extends essentially in the horizontal direction to vertically lock the panels. At least one of the hook elements has a segmented design, thereby forming a plurality of parallel interspaced spring elements. The panel according to the invention is characterized in that the spring elements are diagonally arranged at an angle to the longitudinal axis.

A pneumatic gate unit of bowling apparatus is composed of a gate board able to be turned up and down around its horizontal rotary axle, a cylinder with a piston rod pivoted via pin to said gate board, a frame or wall for supporting the gate board, an optically (or magnetically) controlled open-close controller, and relative pneumatic and electric control systems. Its advantage is high speed to open or close gate.

The invention discloses a switchgear door interlocking mechanism which comprises a front isolation board, a grounding operation shaft which rotates relative to the front isolation board, a first interlocking device having a locking state and an unlocking state, a second interlocking device movably arranged on the front isolation board, and a limiting plate arranged on the grounding operation shaft, when the grounding switch opens, the limiting plate abuts against the second interlocking device to limit the first interlocking device to the locking state, and when the grounding switch closes, the second interlocking device moves upward to allow the first interlocking device to be in an unlocking state. The switchgear comprises the switchgear door interlocking mechanism. Rotation of the grounding operation shaft drives the grounding switch to open and close, and the limiting plate also rotates. When the grounding switch opens, the first interlocking device is under the locking state, and the door can not be opened. When the grounding switch closes, the first interlocking device is under the unlocking state, and the door can be opened. The switchgear door interlocking mechanism and the switchgear have the advantages of simple structure, easy processing, assembly and operation, lower cost, reliable interlocking and maintenance convenience.

An adjusting apparatus for a comfort element swingable in relation to a support structure, in particular for an armrest of a vehicle, includes a latching device actuatable by adjusting the comfort element and having a latching arm connected to the comfort element and a latching lever interacting with the latching arm. A swing position of the comfort element is locked by providing a locking lever which is swingably articulated to the latching arm and has an engagement portion which locks the swing position by a spring force, when the engagement portion assumes an engagement position with a locking portion of a locking element that is fixed to the support structure, and the swing position of the comfort element is unlocked by an actuator by which the locking lever is disengageable from the engagement position with the locking element.

The invention provides a method for detecting state of an observation hole cover of a coke oven. The method comprises the following steps: mounting a temperature detection device on a part which is capable of scanning the observation hole cover and is away from the observation hole cover, and then detecting the temperature of the observation hole cover; detecting the opening/closing state of the observation hole cover; detecting the damaged condition of the observation hole cover; utilizing the temperature detection device to detect the temperature of the observation hole cover in real time and transmitting the detected data to a control device in the running process of the coke oven. The method fully combines the production characteristics of the coke oven, the operation characteristics of a coal car and an automatic detection technology for quickly detecting the opening/closing state of the observation hole cover, realizing the reliable and safe interlocking of the coal loading operation, detecting and judging if the unit is away from the high temperature area; the method is the most direct and most reliable detection technology for the opening/closing state of the observation hole cover; the method is capable of monitoring the working state of the observation hole cover in real time, finding the problem in time and preventing the observation hole cover from exploding and thecoke oven body from irreversible damage; the method is an important supporting technology for the coke oven safety production.

The invention provides an isolation interlocking device of a 40.5kV vacuum combined electrical appliance complete device and is characterized in that the isolation interlocking device comprises an operating shaft, the operating shaft is arranged at the upper end of a combined electrical appliance installation cabinet frame by fixed bent boards of operating mechanisms arranged at the two ends, a cam disk is arranged at the end part of the operating shaft, a positioning device is arranged on the cam disk, an interlocking board of a maintenance room door of a switch device is arranged below the cam disk, an upper isolation insulating board is arranged at the upper side of the operating shaft by a first fixed bent board at the two ends of the bottom part, a second fixed bent board is arranged at the outside of the end part of the first fixed bent board, a lower isolation insulating board is arranged at the upper end of the second fixed bent board, and a guide rail bent board is arranged at the outside of the second fixed bent board and is fixed on the combined electrical appliance installation cabinet frame. The isolation interlocking device has the advantages of simple operation with less labour and reliable interlocking.

The invention relates to a grounding switch interlocking device for a high-voltage switch cabinet. The grounding switch interlocking device for the high-voltage switch cabinet comprises a wedge-shapedinterlocking sliding sheet which is wide at the upper part and narrow at the lower part and is mounted on the front upright column of the switch cabinet; when sliding downwards along the front upright column, the wedge-shaped interlocking sliding sheet pushes an interlocking sheet moves backwards through the wedge-shaped side edge of the wedge-shaped interlocking sliding sheet, so that the interlocking sheet can drive the interlocking mechanism of the circuit breaker of the switch cabinet to move in a linkage manner; a mounting hole matched with a grounding switch operating rod is formed in the wedge-shaped interlocking sliding sheet; the grounding switch operating rod is provided with a limiting sheet; when rotating, the grounding switch operating rod drives a limiting sheet to rotate, so that the limiting sheet can clamp or release the wedge-shaped interlocking sliding sheet; and the wedge-shaped interlocking sliding sheet is reset through a tension spring between the wedge-shaped interlocking sliding sheet and the front upright column of the switch cabinet. The grounding switch interlocking device has the advantages of simple structure, convenient operation and reliable interlocking.

The invention relates to an automatic pushing and positioning device, comprising a single-rod hydraulic cylinder and a plunger cylinder which share one cylinder body, wherein a gear is coaxially arranged between a piston and a piston rod of the single-rod hydraulic cylinder, a piston of the plunger cylinder is a rack plunger, is meshed with the gear and can relatively slide along the extension direction of teeth, a swing rod which extends along the radial direction of the gear is fixed on the piston rod, a positioning structure for positioning parts is arranged on the swing rod, and two hydraulic cylinders controls the motions of the opposite party in certain direction through control oil ports arranged on the lateral wall of respective cylinder. The automatic pushing and positioning device can conveniently realize the coincidence between the practical process reference and the design reference of the workpiece and solves the problems of reference transformation as well as large machining error, high cost and long man-hour caused by reference transformation; in addition, a great amount of control valves and indication switches can be saved by adopting a hydraulic element structure integrating the functions of the hydraulic cylinder and the control valve into a whole, and reliable interlocking of motion time can be ensured.

The invention pertains to a telescopic vacuum cleaner suction tube (1) with an outer tube (2), an inner tube (3) with snap-in depressions (7) that is telescopically arranged in the outer tube, an antitwisting mechanism (4d; 16) and an interlocking device with a snap-in element (15) that is disengaged from a snap-in depression (7) by an actuating element (5) situated about diametrically opposite thereof, wherein the interlocking device consists of a bow spring (6) that positively encompasses at least the inner tube (3) and once again engages the snap-in element (15) into the nearest snap-in depression (7) of the inner tube (3) in the telescoping direction under the prestress of a spring. The invention aims to develop a telescopic vacuum cleaner suction tube of the initially cited type that significantly lowers the manufacturing and assembly expenditures of the interlocking device and ensures that the tubes are always securely interlocked and able to withstand shock-like compressive forces, namely while simultaneously providing for an ergonomic handling.

The invention discloses a direct-current traction trolley for a motor car, and aims at solving the problem that an existing direct-current breaker for the motor car is inconvenient to push forwards and backwards, and unreliable in interlock. The direct-current traction trolley comprises a frame, a screw rod, a handle rack, an end beam, a hand shank and a trolley body, wherein driving wheels are arranged at two sides of the trolley body; a sliding plate and a handle are arranged on the end beam; one end of the screw rod is arranged on the end beam and the other end passes through the sliding plate and the end beam and is arranged on the trolley body; the sliding plate comprises a first position and a second position; the first position is clamped with the end beam through the handle to limit rotation of the screw rod; the second position is clamped with side plates to relieve rotation limit on the screw rod after being driven to slip oppositely to the end beam by the handle; and the sliding plate has a movement trend close to the second position. According to the direct-current traction trolley for the motor car, the end beam is fixed reliably, and meanwhile, the rotation of the screw rod is limited through the sliding plate, so that misoperation of a worker is avoided; the safety of the worker is ensured; and the direct-current traction trolley has the advantages of being convenient to assemble, reliable to interlock, stable in action, reliable in connection of the breaker, long in service lifetime and the like.

The invention belongs to the technical field of medium-voltage power transformation and distribution systems, and discloses an integrated fixed ISM circuit breaker, including a circuit breaker body, a frame connected to the circuit breaker body, a base for installing the circuit breaker body and the frame, and an opening button , the closing button, the control module installed on the frame to control the opening and closing of the circuit breaker, the status indicator, and the opening and closing indicating device for determining the opening and closing of the circuit breaker body. This technical solution integrates the control module into the handcart, and integrates the opening and closing indication, status indication, counter, etc. into the fixed circuit breaker, which has a high degree of integration; the circuit breaker is interlocked to realize interlocking with the cabinet; the setting is fixed Type circuit breaker adopts secondary plug and socket, which is convenient for wiring and maintenance.

The invention discloses a novel three-station knife switch switching operation device mechanism, which comprises a mechanism base, a knife switch switching handle, a linkage plate, a first limiting block, a second limiting block, a main shaft and a knife switch operation sleeve. The first limiting block is a grounding and opening limiting block; the second limiting block is a closing and opening limiting block; the first limiting block is arranged on the first side edge of the mechanism base; the second limiting block is arranged on the second side edge of the mechanism base; the first side edge and the second side edge are two non-adjacent side edges; the first limiting block and the second limiting block are connected with the mechanism base in a sliding manner; the two ends of the linkage plate are connected with the first limiting block and the second limiting block correspondingly; the knife switch switching handle is arranged on the linkage plate; the knife switch operating sleeve sleeves the main shaft; the rotation center of the main shaft coincides with the rotation center of the knife switch operating sleeve. The mechanism is simple and reliable in structure, small in occupied space, easy to operate and maintain, simple in knife switch switching and reliable in interlocking.