Elevator control device capable of automatically triggering maintenance signal when entering car roof

Abstract

The utility model relates to the technical field of elevator maintenance, in particular to an elevator control device capable of automatically triggering an overhaul signal when entering a car roof. The elevator control device comprises a car, the car roof, two sensor mounting brackets, two infrared photoelectric sensors AP, an overhaul reset button SB, a sensor control loop and an anti-misoperation control loop, the sensor mounting bracket is mounted on the car roof, the infrared photoelectric sensor AP and the maintenance reset button SB are mounted on the sensor mounting bracket, the infrared photoelectric sensor AP is electrically connected with the sensor control loop, and the maintenance reset button SB is electrically connected with the anti-misoperation control loop, so that the operation time of entering the car roof is shortened, the operation process is simplified, and the operation efficiency is improved. The working efficiency is improved, the safety and the reliability of an operator entering the car roof for operation are better guaranteed, and safety accidents caused by accidental movement of an elevator due to the fact that the operator forgets to overhaul when entering the car roof for operation can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator maintenance technical field especially relates to a kind of elevator control device of entering car roof automatic triggering maintenance signal. BACKGROUND

[0002] To prevent maintenance personnel from entering car roof operation when elevator accidental start leads to safety accident, under normal circumstances, elevator operating personnel must verify the effectiveness of the layer door electrical safety device and the effectiveness of car roof emergency stop switch and maintenance switch before entering car roof operation, ensure that elevator does not misoperation when operating personnel enters car roof, so as to ensure the safety of operating personnel.

[0003] But the verification process of the effectiveness of the existing layer door electrical safety device and the effectiveness of car roof emergency stop switch and maintenance switch is complex and time-consuming, and if operating personnel forget the verification link, danger may occur. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of elevator control device of entering car roof automatic triggering maintenance signal, solve the verification process of the effectiveness of the existing layer door electrical safety device and the effectiveness of car roof emergency stop switch and maintenance switch is complex and time-consuming, and if operating personnel forget the verification link, danger may occur Problem.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of elevator control device of entering car roof automatic triggering maintenance signal, the elevator control device of entering car roof automatic triggering maintenance signal includes car, car roof, two sensor mounting brackets, two infrared photoelectric sensors AP, maintenance reset button SB, sensor control loop and anti-misoperation control loop, the top of the car is provided with the car roof, the two sides of the car roof are provided with the sensor mounting bracket, the infrared photoelectric sensor AP is provided on each sensor mounting bracket, one of the sensor mounting bracket is provided with the reset button;

[0006] Two infrared photoelectric sensors AP are electrically connected with the sensor control loop, and the maintenance reset button SB is electrically connected with the anti-misoperation control loop.

[0007] Among them, the sensor control loop includes maintenance trigger relay and reset relay, the coil K1 of the maintenance trigger relay is connected with DC 24V power supply, the normally closed contact K2 of the reset relay is connected with the normally open contact K3 of the maintenance trigger relay in series, and then is connected with the infrared photoelectric sensor AP contact in parallel, and then is connected in series on the power supply loop of the coil K1 of the maintenance trigger relay.

[0008] The elevator control device with the car top entering automatic maintenance signal triggering function further comprises a maintenance control loop, and the normally closed contact K4 of the maintenance triggering relay and a maintenance signal JX are connected in series on the maintenance control loop.

[0009] The maintenance control loop comprises a door lock loop relay, and the elevator control device with the car top entering automatic maintenance signal triggering function further comprises a door lock loop, wherein the coil KMS of the door lock loop relay, a door lock contact MS1, a door lock contact MS2 and a door lock contact MSN are connected in series on the door lock loop, the coil K5 of the reset relay is connected to a DC 24V power supply, and the maintenance reset button SB and the normally closed contact MS of the door lock loop relay are connected in series on the power supply loop of the coil K5 of the reset relay.

[0010] The elevator control device with the car top entering automatic maintenance signal triggering function comprises a car, a car top, two sensor mounting brackets, two infrared photoelectric sensors AP, a maintenance reset button SB, a sensor control loop and a mistaken operation prevention control loop. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0012] Fig. 1 is a front view of the elevator control device with the car top entering automatic maintenance signal triggering function provided by the present application.

[0013] Fig. 2 is a side view of the elevator control device with the car top entering automatic maintenance signal triggering function provided by the present application.

[0014] Fig. 3 is a circuit principle diagram of the elevator control device with the car top entering automatic maintenance signal triggering function provided by the present application.

[0015] 101 - car, 102 - roof, 103 - sensor mounting bracket, 104 - infrared photoelectric sensor AP, 105 - maintenance reset button SB. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0017] Please refer to Figs. 1 to 3 The utility model provides an elevator control device of entering roof automatic trigger maintenance signal, elevator control device of entering roof automatic trigger maintenance signal includes car 101, roof 102, two sensor mounting bracket 103, two infrared photoelectric sensor AP 104, maintenance reset button SB 105, sensor control loop and false operation control loop, the top of car 101 is provided with roof 102, the both sides of roof 102 are provided with sensor mounting bracket 103, infrared photoelectric sensor AP 104 is provided on each sensor mounting bracket 103, one of sensor mounting bracket 103 is provided with reset button,

[0018] Two infrared photoelectric sensor AP 104 are electrically connected with sensor control loop, maintenance reset button SB 105 is electrically connected with false operation control loop.

[0019] In the embodiment, by installing sensor mounting bracket 103 on roof 102, installing infrared photoelectric sensor AP 104 and maintenance reset button SB 105 on sensor mounting bracket 103, since infrared photoelectric sensor AP 104 is electrically connected with sensor control loop, and maintenance reset button SB 105 is electrically connected with false operation control loop, not only the operation time of entering roof is shortened, the operation process is simplified, the work efficiency is improved, and the safety and reliability of the work personnel entering roof 102 for work are more ensured, and the safety accidents caused by the elevator accidental movement due to the work personnel forgetting to press maintenance when entering roof 102 for work can be effectively avoided.

[0020] Further, the sensor control loop includes a maintenance trigger relay and a reset relay, the coil K1 of the maintenance trigger relay is connected to a DC 24V power supply, the normally closed contact K2 of the reset relay is connected in series with the normally open contact K3 of the maintenance trigger relay, and then connected in parallel with the infrared photoelectric sensor AP contact, and then connected in series in the power supply circuit of the coil K1 of the maintenance trigger relay.

[0021] In this embodiment, when the operator needs to enter the car top 102 for operation, he only needs to call the elevator to the next floor of the operation floor. When the car top 102 moves to the horizontal position of the door, the door is directly opened, the elevator stops running immediately, indicating that the door lock switch function is effective. At this time, the operator can directly enter the car top 102 through the door. At this time, the infrared photoelectric sensor AP104 installed on both sides of the car top 102 near the door entrance is blocked by the human body. The contact of the infrared photoelectric sensor AP104 is automatically closed during the blocking of the photoelectric sensor by the human body. The coil K1 of the added maintenance trigger relay is connected to the DC 24V power supply. The normally closed contact K2 of the reset relay and the normally open contact K3 of the maintenance trigger relay are connected in series and then connected in parallel with the contact of the infrared photoelectric sensor AP104. Then they are connected in series in the power supply circuit of the coil K1 of the maintenance trigger relay. When the coil K1 of the maintenance trigger relay is energized, the normally open contact K3 of the maintenance trigger relay is closed to realize the self-locking of the maintenance trigger relay. At the same time, the normally closed contact K4 in series in the maintenance circuit is disconnected, the maintenance signal is triggered, and the elevator automatically enters the maintenance state. The operator can perform related operations in the car top 102 to maintain the operation of the elevator.

[0022] Further, the elevator control device for automatically triggering the maintenance signal when entering the car top further includes a maintenance control circuit, and the normally closed contact K4 of the maintenance trigger relay and the maintenance signal JX are connected in series on the maintenance control circuit. The anti-misoperation control circuit includes a door lock circuit relay. The elevator control device for automatically triggering the maintenance signal when entering the car top further includes a door lock circuit, and the coil KMS of the door lock circuit relay, the door lock contact MS1, the door lock contact MS2, and the door lock contact MSN are connected in series on the door lock circuit. The coil K5 of the reset relay is connected to the DC 24V power supply. The maintenance reset button SB and the normally closed contact MS of the door lock circuit relay are connected in series in the power supply circuit of the coil K5 of the reset relay.

[0023] In the embodiment, by connecting the coil KMS of the door lock circuit relay in series on the door lock circuit, when the door lock contact MS1, the door lock contact MS2 and the door lock contact MSN are all turned on, the coil KMS of the door lock circuit relay is connected to the power supply, the normally closed contact MS of the door lock circuit relay connected in series on the control circuit of the reset relay is disconnected, as long as the door lock is kept on, the coil K5 of the reset relay cannot be connected to the power supply, the normally closed contact K2 of the reset relay connected on the maintenance trigger signal control circuit is kept closed, the maintenance trigger relay is always in the state of being connected to the power supply, the normally closed contact K4 of the maintenance trigger relay connected in series on the maintenance control circuit is kept disconnected, so that the elevator is kept in the maintenance state, even if the reset button SB is misoperated, the coil K5 of the reset relay is kept in the state of being disconnected from the power supply, the power supply circuit of the coil K1 of the maintenance trigger relay is kept in the state of being connected to the power supply, so that the elevator is kept in the maintenance state;

[0024] When the operating personnel needs to exit the car roof 102, the car roof 102 is moved to the landing floor level position to open the landing door and exit the car roof 102, the landing door is kept open, at this time, the door lock switch is disconnected, the coil KMS of the door lock circuit relay is disconnected from the power supply, the normally closed contact MS of the door lock circuit relay connected in series on the power supply circuit of the coil K5 of the reset relay is closed, at this time, the reset button SB is pressed, the coil K5 of the reset relay is connected to the power supply, the normally closed contact K2 of the reset relay connected on the circuit of the coil K1 of the maintenance trigger relay is disconnected, the coil K1 of the maintenance trigger relay is disconnected from the power supply, the normally closed contact K4 of the maintenance trigger relay connected on the maintenance control circuit is closed, so that the elevator can exit the maintenance state, after the landing door is closed, the elevator can resume normal operation, and the safety and reliability of entering and exiting the car roof 102 and operating on the car roof 102 are greatly improved.

[0025] The above only discloses a preferred embodiment of the utility model, of course, cannot be limited by this to limit the scope of the utility model, and the person skilled in the art can understand that all or part of the processes of the above embodiment are implemented, and equivalent changes made according to the utility model claim still belong to the range covered by the utility model.

Claims

1. An elevator control device for automatically triggering a maintenance signal when entering the top of a car, characterized in that it comprises a car, a top, two sensor mounting brackets, two infrared photoelectric sensors AP, a maintenance reset button SB, a sensor control circuit and a misoperation prevention control circuit, the top end of the car is provided with the top, the two sides of the top are provided with the sensor mounting brackets, the infrared photoelectric sensor AP is arranged on each sensor mounting bracket, and the reset button is arranged on one of the sensor mounting brackets. Both of the infrared photoelectric sensors AP are electrically connected with the sensor control circuit, and the maintenance reset button SB is electrically connected with the misoperation prevention control circuit.

2. The elevator control device for automatically triggering a maintenance signal when entering the top of a car according to claim 1, characterized in that the sensor control circuit comprises a maintenance trigger relay and a reset relay, the coil K1 of the maintenance trigger relay is connected with a DC 24V power supply, the normally closed contact K2 of the reset relay is connected in series with the normally open contact K3 of the maintenance trigger relay, then connected in parallel with the infrared photoelectric sensor AP contact, and then connected in series in the power supply circuit of the coil K1 of the maintenance trigger relay.

3. The elevator control device for automatically triggering a maintenance signal when entering the top of a car according to claim 2, characterized in that the elevator control device for automatically triggering a maintenance signal when entering the top of a car further comprises a maintenance control circuit, and the normally closed contact K4 of the maintenance trigger relay and a maintenance signal JX are connected in series on the maintenance control circuit.

4. The elevator control device for automatically triggering a maintenance signal when entering the top of a car according to claim 3, characterized in that the misoperation prevention control circuit comprises a door lock circuit relay, the elevator control device for automatically triggering a maintenance signal when entering the top of a car further comprises a door lock circuit, the coil KMS of the door lock circuit relay, a door lock contact MS1, a door lock contact MS2 and a door lock contact MSN are connected in series on the door lock circuit, the coil K5 of the reset relay is connected with a DC 24V power supply, and the maintenance reset button SB and the normally closed contact MS of the door lock circuit relay are connected in series in the power supply circuit of the coil K5 of the reset relay. ​ ​ ​ ​

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