CN202245641U

CN202245641U - Multi-confirming circuit of elevator landing door

Info

Publication number: CN202245641U
Application number: CN2011201243479U
Authority: CN
Inventors: 屈克亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-20
Filing date: 2011-04-20
Publication date: 2012-05-30
Anticipated expiration: 2021-04-20

Abstract

The utility model relates to a multi-confirming circuit of an elevator landing door, which comprises a running relay KY, a diode D1, a diode D2, a delay relay KT1 and a delay relay KT2. An A end of a first contact loop is connected with a fifth contact KY05 of the running relay KY, the other end of the first contact loop is connected with a positive terminal B of the diode D1, a negative terminal of the diode D1 is connected with a seventh contact KY07 of the running relay KY, a first contact KY01 and a second contact KY02 of the running relay KY are connected, an eighth contact KY08 of the running relay KY is connected with a D terminal of a second contact loop, the other end of the second contact loop is connected with a positive terminal E of the diode D2, a negative terminal F of the diode D2 F is sequentially connected with a first normally-opened contact KT11 and a second normally-opened contact KT12 of the delay relay KT1, a first normally-opened contact KT21 and a second normally-opened contact KT22 of the delay relay KT2 in series, and the negative terminal F of the diode D2 is connected with a fourth contact KY04 of the running relay KY.

Description

The multiple identification circuit of hoistway door

Technical field

The utility model relates to the elevator safety technical field, refers to a kind of multiple identification circuit of hoistway door that is used to improve the elevator serviceability especially.

Background technology

For guaranteeing that elevator can move safely, many safety components are housed on elevator, so-called safety return circuit all is equipped with a safety switch at each safety component of elevator exactly, all safety switch series connection, controls a safety relay.Have only each safety component all under normal situation, elevator could move, otherwise elevator is out of service immediately, has only all safety switchs all under the situation of connection, the safety relay adhesive, and elevator could get electric operation.Safety return circuit generally includes following sub-loop: machine room loop, hoistway loop, melt pit loop, sedan-chair inner looping, sedan-chair loop, top and hoistway door loop; When the safety relay dead electricity, elevator can not move, for the hoistway door loop; Usually be series at the end of elevator safety loop; Door loop, the Room is made up of the moving a plurality of series connected safety switch that is provided with of the Room couplet on the door of each floor, for example splits the elevator device of Room door for singly opening Room door or midsplit type, and each Room door all is singly connected with a safety switch; At this time; Room door circuit switching K1, K2, K3 ... KN (or split Room door for midsplit type, Room door circuit switching is K11, K21, K12, K22, K13, K23 ... K1N, K2N) switch all after the series connection, is series at the end of whole safety return circuit again.Because Room door can often be opened and be closed, cause the safety switch of being installed on certain Room door to damage or bad contact easily during therefore long-time the use, cause the safety relay just can not adhesive; Cause elevator not move, if Room door really is opened, elevator stops very important certainly; But in actual use; Poor contact phenomenon has appearred in the contact that under some situation is the door safety circuit in the elevator Room in service, at this moment then because safety relay can break off suddenly, can cause elevator to brake immediately; The promptly anxious phenomenon of stopping; Unavoidably can be to just causing scaring or injury the people of riding elevator, particularly for the more weak people of physique, may cause bigger injury, be necessary prior art is improved to stop the generation of this hidden danger; In addition safety switch damage caused stops terraced problem, also can cause the fault rate of elevator to increase.

The utility model content

The technical purpose of the utility model is for a kind of multiple identification circuit of hoistway door that can strengthen the reliability of elevator safety loop is provided.

For realizing above-mentioned purpose; The multiple identification circuit of the hoistway door of the utility model; Comprised that the main contact series connection by each Room door constitutes loop, first contact; And the series connection of the auxiliary contact of each Room door constitutes loop, second contact; The multiple identification circuit of this hoistway door also includes operation relay K Y, diode D1, diode D2 and the KT1 of slug relay, the KT2 of slug relay at least; The A end in loop, first contact is connected with the 5th contact KY05 of operation relay K Y; Loop, first contact other end is connected with diode D1 positive terminal B; Diode D1 negative pole end C is connected with the 7th contact KY07 of operation relay K Y, and the first contact KY01 of operation relay K Y is connected with the second contact KY02, and the 8th contact KY08 end of operation relay K Y is connected with contact, loop, second contact D end; Loop, second contact other end is connected with the positive terminal E of diode D2; The first open contact KT21 and the second open contact KT22 of the first open contact KT11 of the negative pole end F of diode D2 and the KT1 of slug relay and the second open contact KT12, the KT2 of slug relay connect successively, and the negative pole end F of diode D2 is connected with the 4th contact KY04 of operation relay K Y, and diode D1 positive terminal B holds and is connected with loop A 11 ends of the KT1 of slug relay; Loop A 12 ends of the KT1 of slug relay and ground wire joint; The positive terminal E end of diode D2 is connected with the KT2 of slug relay loop A 21 ends, and (the 7th contact KY07 of above-mentioned operation relay K Y and the 4th contact KY04, the 8th contact KY08 and the 5th contact KY05 are for being respectively open contact, and the 7th contact KY07 and the first contact KY01, the 8th contact KY08 and the second contact KY02 are respectively normally closed contact with the ground wire joint for loop A 22 ends of KT2; The first open contact KT11 of the above-mentioned KT1 of slug relay and the second open contact KT12 are two open contacts, and the first open contact KT21 of the above-mentioned KT2 of slug relay and the second open contact KT22 are two open contacts).

In the multiple identification circuit of the hoistway door of the utility model; Loop, described first contact series connected contact comprise with the elevator master couplet on the door is moving and contact/open circuited 1 building-owner's K switch, 11,2 building-owner's K switch, 12,3 building-owner's K switch 13, that the series connected contact of loop, described second contact institute comprises the whole switch contacts that with moving contact of the secondary couplet on the door of elevator/open circuited 1 building auxiliary switch K21,2 building auxiliary switch K22,3 building auxiliary switch K23, extremely arrive N building auxiliary switch K2N to whole switch contacts to the switch of N building-owner's K switch 1N

Beneficial effect: the multiple identification circuit of the utility model hoistway door, when elevator is out of service, operation relay K Y dead electricity; At this moment, loop, first contact and the series connection of loop, second contact are when elevator brings into operation; The elevator central processing unit makes the energising of operation relay coil, at this moment, and operation relay switch state exchange; Parallel with one another after connecting with diode respectively in loop, first contact and loop, second contact, because the cut-off/close basic synchronization of the major and minor contact of midsplit type clamshell doors, elevator is in operation; If Room door is really opened, then main, loop, second contact make the safety relay coil losing electricity thereby all can break off basically simultaneously; Make elevator out of service, protection passenger and maintainer's safety.Iff is a poor contact of contacts, breaks off in short-term, and another loop, contact, road then, it is electric still the safety relay coil to be got, and does not allow elevator to stop suddenly.Thereby reduce unnecessary unexpected parking.If this contact not conducting for a long time; Surpass the admissible time (for example 0.5s); Slug relay's open contact in affiliated loop, this contact this moment will break off, and cuts off safety return circuit, makes elevator out of service; So just can avoid so just can improving the reliability of safety return circuit greatly because safety switch damages, the urgency that other situations caused such as connection line opens circuit, poor contact of contacts are stopped phenomenon.

Description of drawings

Fig. 1, be the circuit diagram of a kind of embodiment of the utility model.

The 7th contact KY07 of operation relay K Y and the 4th contact KY04, the 8th contact KY08 and the 5th contact KY05 are for being respectively open contact, and the 7th contact KY07 and the first contact KY01, the 8th contact KY08 and the second contact KY02 are normally closed contact,

The first open contact KT11 of the KT1 of slug relay and the second open contact KT12 are two open contacts,

The first open contact KT21 of the KT2 of slug relay and the second open contact KT22 are two open contacts.

The specific embodiment

Please with reference to shown in Figure 1; The multiple identification circuit of the hoistway door of the utility model; Comprised that the main contact series connection by each Room door constitutes loop, first contact; And the auxiliary contact of each Room door series connection formation loop, second contact, the multiple identification circuit of this hoistway door also includes operation relay K Y, diode D1, diode D2 and the KT1 of slug relay, the KT2 of slug relay at least, and the A end in loop, first contact is connected with the 5th contact KY05 of operation relay K Y; Loop, first contact other end is connected with diode D1 positive terminal B; Diode D1 negative pole end C is connected with the 7th contact KY07 of operation relay K Y, and the first contact KY01 of operation relay K Y is connected with the second contact KY02, and the 8th contact KY08 end of operation relay K Y is connected with contact, loop, second contact D end; Loop, second contact other end is connected with the positive terminal E of diode D2; The first open contact KT21 and the second open contact KT22 of the first open contact KT11 of the negative pole end F of diode D2 and the KT1 of slug relay and the second open contact KT12, the KT2 of slug relay connect successively, and the negative pole end F of diode D2 is connected with the 4th contact KY04 of operation relay K Y, and diode D1 positive terminal B holds and is connected with loop A 11 ends of the KT1 of slug relay; Loop A 12 ends of KT1 and ground wire joint; The positive terminal E end of diode D2 is connected with the KT2 of slug relay loop A 21 ends, loop A 22 ends of KT2 and ground wire joint, and the circuit that this A is ordered to G is replaced existing Room door safety circuit.

Further; Loop, described first contact series connected contact comprise with the elevator master couplet on the door is moving and contact/open circuited 1 building-owner's K switch, 11,2 building-owner's K switch, 12,3 building-owner's K switch 13, that the series connected contact of loop, described second contact institute comprises all switch contacts that with moving contact of the secondary couplet on the door of elevator/open circuited 1 building auxiliary switch K21,2 building auxiliary switch K22,3 building auxiliary switch K23, extremely arrive N building auxiliary switch K2N to all switch contacts to the switch of N building-owner's K switch 1N.

Claims

1. multiple identification circuit of hoistway door; Comprised that the main contact series connection by each Room door constitutes loop, first contact; And the series connection of the auxiliary contact of each Room door constitutes loop, second contact; It is characterized in that: the multiple identification circuit of this hoistway door also includes operation relay K Y, diode D1, diode D2 and the KT1 of slug relay, the KT2 of slug relay at least; (A) end in loop, first contact is connected with the 5th contact (KY05) of operation relay K Y; Loop, first contact other end is connected with diode D1 positive terminal (B), and diode D1 negative pole end (C) is connected with the 7th contact (KY07) of operation relay K Y, and first contact (KY01) of operation relay K Y is connected with second contact (KY02); The 8th contact (KY08) end of operation relay K Y is connected with contact, loop, second contact (D) end; Loop, second contact other end is connected with the positive terminal (E) of diode D2, and first open contact (KT21) and second open contact (KT22) of first open contact (KT11) of the negative pole end of diode D2 (F) and the KT1 of slug relay and second open contact (KT12), the KT2 of slug relay are connected successively, and the negative pole end of diode D2 (F) is connected with the 4th contact (KY04) of operation relay K Y; Diode D1 positive terminal (B) end is connected with coil (A11) end of the KT1 of slug relay; The coil of the KT1 of slug relay (A12) end and ground wire joint, the positive terminal of diode D2 (E) end is connected with the KT2 of slug relay coil (A21) end, the coil of KT2 (A22) end and ground wire joint.