Safety interlocking timer
The present invention relates to electrical safety production technical field, particularly a kind of safety interlocking timer.
The grid switching operation of generating plant, electric substation, distribution substation disconnector, grounding switch has strict running program, and this program, as only having artificial observing, there will be error unavoidably and causes maloperation to be short-circuited to cause device damage or electric shock personal injury.Therefore, to the fool proof locking measure of power switch be country, International Power product standard mandatory requirement.Present anti-misoperation measure has electric locking, mechanical linkage locking and lock core to stir procedure lock etc., and the shortcoming of electric locking is normal because of the obstructed inefficacy of circuit; And though mechanical linkage locking is reliable, be difficult to when interlock object distance is excessive realize; Lock core can stir procedure lock also because lock core displacement was sometimes lost efficacy, and artificially can dial and also easily maloperation occur.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, a kind of safety interlocking timer is provided, program management is carried out to the key of the power switch of distribution substation etc., and the management of work ticket system can be carried out this device.
The technical scheme that the present invention takes is:
A kind of safety interlocking timer, comprise housing, described housing comprises locking closure, it is characterized in that, by slide mechanism setting program plate in described housing, described program board is parallel with described locking closure, described slide mechanism makes described program board realize sliding in a direction, the locking closure of described housing is provided with an inlet wire lock and at least two outlet locks, described inlet wire lock and outlet lock are bar lock, there is below the lock core of described bar lock vertical eccentric finger, just respective key can be extracted when described inlet wire lock and described outlet are locked in locking, the line of described at least two outlets lock is parallel with the glide direction of described program board, between the line that described inlet wire lock and described at least two outlets are locked, there is a distance, described program board corresponds to the first elongated hole offering playground type between lock core center when described inlet wire lock is in released state and the center of finger, clearance fit is formed between the width of described first elongated hole and described finger, described first elongated hole is vertical with the glide direction of described program board, described program board corresponds to the second elongated hole offering playground type between lock core center when each outlet lock is in released state and the center of finger, the width of described second elongated hole is identical with the width of described first elongated hole, described second elongated hole is parallel with the glide direction of described program board, when described each outlet lock is from released state to blocking, the movement locus of finger is 90 degree of arcs, described program board corresponds to described 90 degree of arc positions and offers an arcuate socket, described arcuate socket is connected with described second elongated hole, the width of described arcuate socket is equal with the width of described second elongated hole, after described device is installed, the finger of described inlet wire lock penetrates in described first elongated hole, the finger of described each outlet lock penetrates in each self-corresponding second elongated hole or arcuate socket, the slip of described program board when the sliding stroke of described program board meets described inlet wire lock from released state to blocking or from blocking to released state.
Further, described slide mechanism comprises the slide bar being arranged on described program board both sides and the sliding sleeve be arranged in described housing, and described slide bar penetrates in described sliding sleeve.
Further, described slide bar is four, and be separately positioned on four angles of described program board, described sliding sleeve is arranged on the relevant position in described housing.
Further, the glide direction of described program board is the length direction of described housing.
Further, described housing is divided into upper and lower two parts, and upper and lower two parts are fastenedly connected.
Further, described hull outside limit arranges portable handle.
Further, arrange one piece of jam plate below the lock core of described inlet wire lock and outlet lock, described finger is arranged on one end of described jam plate.
Further, described outlet lock is 3 to 6.
Further, described program board is aluminium alloy plate.
The invention has the beneficial effects as follows:
1, running program meets the requirement of electrical safe working order; Running program, by the locking of each equipment, key and program disks of the present invention, key, realizes in operation naturally, and namely running program is correct, successful operation, and running program is incorrect, operates unsuccessful;
2, each lock core, key are shaping type, artificially arbitrarily can not stir change, and not because of vibration, knock-on displacement, blocking function is reliable and stable;
3, lightweight, there is portable handle, the keeping of available work ticket system control;
4, unique configuration design, has its aesthetic appearance.
Accompanying drawing explanation
Accompanying drawing 1 for inlet wire lock be in unblocks, outlet lock be in locking time, the structural representation of program board in housing;
Accompanying drawing 2 is each lock core corresponding with the accompanying drawing 1 arrangement schematic diagram at housing locking closure;
Accompanying drawing 3 for inlet wire lock be in locking, outlet lock be in unblock time, the structural representation of program board in housing;
Accompanying drawing 4 is each lock core corresponding with the accompanying drawing 3 arrangement schematic diagram at housing locking closure;
Mark in accompanying drawing is respectively:
1. housing; 2. locking closure;
3. program board; 4. slide bar;
5. sliding sleeve; 6. inlet wire lock;
7. the first outlet lock; 8. the second outlet lock;
9. the 3rd outlet lock; 10. finger;
11. jam plates; 12. first elongated holes;
13. second elongated holes; 14. arcuate sockets.
Elaborate below in conjunction with the embodiment of accompanying drawing to safety interlocking timer of the present invention.
In order to allow easy to understand of the present invention, in this instructions, employ some Directional terms.It should be noted that; the Directional terms mentioned in this instructions, such as " on ", D score, "left", "right" etc., be the direction with reference to accompanying drawing; the Directional terms used is in order to illustrate and to understand the present invention, and is not used to limit the scope of the invention.
See accompanying drawing 1 to 4, the housing 1 of safety interlocking timer is rectangular structure, is locking closure 2 above it, housing 1 can adopt to be renovated or the structure of cover-closing type, when after whole device installation, housing 1 is fastening is arranged to an entirety, can be fixed by screw or directly be welded and fixed.In housing 1 outer side edges by arranging portable handle, conveniently lift this device.
By slide mechanism setting program plate 3 in housing 1, program board 3 aluminium alloy material, program board 3 is parallel with locking closure 2, and slide mechanism makes program board 3 realize sliding in a direction.The structure of slide mechanism can adopt various forms of the prior art, such as arranges chute at the dual-side of housing 1, and the dual-side of program board 3 is being embedded in chute.In the drawings, slide mechanism comprise be arranged on program board 2 both sides angle on four slide bars 4 and four upper sliding sleeves 5 that are arranged in housing 1, each slide bar 4 penetrates in a sliding sleeve, and making slide bar 4 reserve the stroke space of enough program board 3 slip, the glide direction of program board 3 is the length direction that can be set to housing 1.
The locking closure 2 of housing 1 is provided with an inlet wire lock 6 and at least two outlet locks, the quantity of outlet lock determines according to the quantity of disconnector or grounding switch, the quantity of outlet lock or select 2,3,6 etc., here be described for three outlets locks in scheming, three outlets lock in figure is respectively the first outlet lock 7, second and pays the bill lock 8 and the 3rd outlet lock 9, inlet wire lock 6 and outlet lock are bar lock, have vertical eccentric finger 10 below the core of bar lock, each finger 10 is connected to each core each via one piece of jam plate 11.Inlet wire lock 6 and each outlet described lock all just can extract key when locking.First outlet lock 7, second outlet lock 8 and the 3rd outlet lock 9 arranges along the glide direction of program board 3, and inlet wire lock 6 is arranged on the side that lines are locked in three outlets, and have a spacing between the line locked of three outlets.
The position that program board 3 corresponds to inlet wire lock 6 arranges a playground type elongated hole, it is the first elongated hole 12, on line between the lock core center of the first elongated hole 12 when inlet wire lock 6 is in released state and the center of finger, first elongated hole 12 is vertical with the glide direction of program board 3, its width, slightly larger than the diameter of finger 3, ensures that finger 3 can move in the first elongated hole.
The position that program board 3 corresponds to the first outlet lock 7 arranges a playground type elongated hole, it is the second elongated hole 13, on line between the lock core center of the second elongated hole 13 when the first outlet lock 7 is in released state and the center of finger, the second elongated hole 13 is parallel with the glide direction of program board 3.When first outlet lock 7 is from released state to blocking, the movement locus of finger is 90 degree of arcs, an arcuate socket 14 is offered in the position that program board 3 corresponds to these 90 degree of arcs, arcuate socket 14 is connected with the second elongated hole 13, the width of arcuate socket 14 is equal with the width of the second elongated hole 13, all slightly larger than the diameter of finger.In program board 3, corresponding to second outlet lock 8 and the 3rd outlet lock 9, respective arcuate socket 14 and the second elongated hole 13 are also set, its setting position and parameter and the first outlet lock 7 identical.
After housing 1 installation, the finger 10 of inlet wire lock 6 penetrates in the first elongated hole 12, and the finger 10 of each outlet lock penetrates in each self-corresponding second elongated hole 13 or arcuate socket 14.
When carriage will meet inlet wire lock 6 from released state to blocking or from blocking to released state, the sliding space of program board 3 is enough.
This device is used for the safety interlocking of generating plant, electric substation, the disconnector of voltage switchgear middle high-pressure primary system when transferring inspecting state to from running status and when transferring running status to from inspecting state of distribution substation, grounding switch operation.
The course of work of for example bright device is operated below with primary system, the key of the inlet wire lock of this device mates with feed isolating switch, the key of each outlet lock and each Self Matching of outlet disconnector, one time bus has a road feed isolating switch, three tunnel outlet disconnectores, respectively corresponding inlet wire lock and three outlet locks.
According to electrical standard, when each road possesses isolator operation condition, sub-switching operation program is: after first disconnecting three tunnel outlet disconnectores, just allows to disconnect feed isolating switch; Closing operation program is: after the feed isolating switch that first closes, and just allows the three tunnel outlet disconnectores that close successively.
After the first outlet lock, the second outlet lock and the 3rd outlet lock all inject key and all solutions is locked into position, the finger of three outlet locks is all positioned at the junction of arcuate socket and the second elongated hole, at this moment, inlet wire lock turns to locking position from solution lock-bit, the finger of inlet wire lock moves in the first elongated hole, promote program board to move downward, the finger due to three outlet locks is positioned at the upper end of the second elongated hole, does not produce obstruction to moving upward of program board simultaneously.
When any one in the first outlet lock, the second outlet lock and the 3rd outlet lock do not separate pin put in place time, inlet wire lock just cannot locking, and when namely the key of three outlets locks all will be positioned at outlet lock, the key that inlet wire is locked just can be extracted.When the key of three outlet locks has one to extract from outlet lock, the key of inlet wire lock just cannot be extracted.
When inlet wire lock is in blocking, when namely extracting inlet wire lock key, because program board cannot horizontally slip, three outlet locks are all in released state, and three all cannot extract outlet lock key.
This device can be crossed work ticket system and manage, and electrician is operated and meets electric work standard completely, improve job security.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.