CN220078252U - Elevator overhauls safety coefficient - Google Patents
Elevator overhauls safety coefficient Download PDFInfo
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- CN220078252U CN220078252U CN202321475789.7U CN202321475789U CN220078252U CN 220078252 U CN220078252 U CN 220078252U CN 202321475789 U CN202321475789 U CN 202321475789U CN 220078252 U CN220078252 U CN 220078252U
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- 238000012423 maintenance Methods 0.000 claims abstract description 64
- 230000001174 ascending effect Effects 0.000 claims abstract description 5
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
Abstract
The utility model discloses an elevator overhaul safety system, which relates to the field of elevator related equipment, and the technical scheme is that the elevator overhaul safety system comprises a main controller, a control unit and a control unit, wherein the main controller is used for controlling the elevator to move or stop; the sensor group comprises a plurality of sensors which are distributed at the top of the elevator car; the switch group comprises a plurality of switches, the switch group and the sensor group form a control circuit, and the control circuit is electrically connected with the main controller to form a control loop; the switch group includes: the maintenance master switch is a master control switch for maintenance operation; the limit switch group comprises a plurality of limit switches which are respectively arranged above and below the elevator car; and the elevator control switch group is used for controlling the ascending and descending of the elevator. The car roof maintenance system has the beneficial effects that the system carries out human body detection through the sensor, so that the system automatically enters a car roof maintenance state when a car roof maintenance person is in a maintenance state, and cancels a safety control mode of automatic operation, interrupts outbound and car inner selective layer, and ensures the safety of the car roof maintenance person.
Description
Technical Field
The utility model relates to the field of elevator related equipment, in particular to an elevator overhaul safety system.
Background
With the development of modern society, villa type private houses are more and more, and the demand of home elevators is more and more. The standard elevator has national standard requirement on the well size, and the space between the top layer and the pit is reserved with maintenance and risk avoidance space. The well requirements of the home elevator have no corresponding standard, so the well space is smaller, the heights of the top layer and the pit are also smaller, and the heights of the top layer and the pit depth cannot meet the requirements of designing the risk avoiding space in many cases. When maintenance personnel overhauls the car roof, if the home elevator ascends to the flat layer position of the top layer, the situation that the car roof maintenance personnel squeeze casualties is possibly caused when the space of the top layer is insufficient. If the home elevator descends to the bottom floor position, the pit maintenance personnel can possibly squeeze casualties when the pit space is insufficient. Therefore, a device is needed to limit the running of the car during the maintenance operation of the car roof, and ensure the safety of maintenance personnel.
Disclosure of Invention
Aiming at one of the defects of the prior art, the utility model provides an elevator maintenance safety system, which solves the safety problem of workers during maintenance of the top of a household elevator car.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an elevator overhaul safety system comprises a main body, a main body and a main body,
the main controller is provided with a plurality of interfaces for controlling the elevator to move or stop;
the sensor group comprises a plurality of sensors which are distributed at the top of the elevator car; the sensor sensing ends of the sensor groups face to the top area of the elevator car, and the total sensing range of the sensors of the sensor groups covers the area above the top of the elevator car;
the switch group comprises a plurality of switches, the switch group and the sensor group form a control circuit, and the control circuit is electrically connected with the main controller to form a control loop; the switch group includes:
the maintenance master switch is a master control switch for maintenance operation;
the limit switch group comprises a plurality of limit switches which are respectively arranged above and below the elevator car;
and the elevator control switch group is used for controlling the ascending and descending of the elevator, the switch of the control switch group is connected in series with the limit switch to form a control loop, and when the limit switch is triggered, the power supply channel formed by the elevator control switch group is cut off.
Preferably, the interface of the main controller includes:
the main power supply port is used for being connected with a power supply;
the working state switching interface is connected to the sensor group, and the elevator is switched to be in a normal state or an overhaul state;
the maintenance uplink interface is used for accessing an uplink signal of the control elevator;
and overhauling the downlink interface, which is used for accessing the downlink signal of the control elevator.
Preferably, the sensor group includes at least two sensors that can detect a human body.
Preferably, the sensor of the sensor group is disposed in an upper corner region of the elevator car, and the sensing direction of the sensor is toward an upper middle position of the elevator car.
Preferably, the maintenance main switch comprises a normally closed path and a normally open path; the sensors in the sensor group form a normally closed switch in a control circuit; and the normally closed path of the maintenance main switch is connected with the sensor of the sensor group in series and then connected with the working state switching interface.
Preferably, the normally open path of the maintenance master switch is connected with the elevator control switch group and the limit switch in series to form a control loop.
Preferably, the elevator control switch group includes:
the overhaul uplink switch is electrically connected with the overhaul uplink interface and is used for controlling the elevator to uplink during overhaul;
and the overhaul downlink switch is electrically connected with the overhaul downlink interface and used for controlling the elevator to downlink during overhaul.
Preferably, the elevator control switch group further comprises:
and the overhaul public switch is connected in series with the normally open path and the limit switch of the overhaul main switch to form a main control circuit for elevator control, and the output end of the main control circuit is connected in parallel with the overhaul uplink switch and the overhaul downlink switch.
Preferably, the limit switches in the limit switch group are divided into an upper limit switch arranged above the elevator car and a lower limit switch arranged below the elevator car.
Preferably, the upper limit switch is arranged on the top collision bow of the elevator car, and the lower limit switch is arranged on the bottom collision bow of the elevator car.
Compared with the prior art, the method has the following beneficial effects: the system carries out human body detection through the sensor, realizes the safety control mode of automatically entering the maintenance state of the car roof and canceling automatic operation when the maintenance personnel at the car roof are in maintenance, interrupts the outbound call and the inner selective layer of the car, and ensures the safety of the maintenance personnel at the car roof. The elevator control switch group and the limit switch for overhauling are combined, so that the car roof maintenance personnel stop running when the elevator maintenance personnel reach a limited height during overhauling operation, the maintenance personnel are prevented from being extruded and injured, and the safety of the household elevator maintenance personnel during overhauling operation of the car roof is ensured.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
fig. 2 is a schematic circuit diagram of an embodiment of the present utility model.
In the figure:
1. a main controller; 11. a main power supply port; 12. a working state switching interface; 13. repairing the uplink interface; 14. overhauling a downlink interface; 2. a sensor group; 31. the main switch is overhauled; 32. a limit switch; 33. repairing the uplink switch; 34. overhauling the downlink switch; 35. 4, an elevator car; 5. an elevator hoistway.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, the present utility model provides the following technical solutions:
an elevator overhaul safety system comprises a main controller 1, wherein the main controller 1 is provided with a plurality of interfaces for controlling the movement or stop of an elevator; when the scheme is implemented, the main control board of the elevator can be directly selected as the main controller 1, or an additional circuit board is arranged as the main controller 1 to be combined with the main control board of the elevator for application. Only the stopping, ascending and descending of the elevator can be controlled by the main controller 1. The elevator car also comprises a sensor group 2, wherein the sensor group 2 is provided with a plurality of sensors, and the sensors are distributed at the top of the elevator car 4; the sensor sensing ends of the sensor group 2 are all directed towards the top area of the elevator car 4, and the total sensing range of the sensor group 2 covers the top upper area of the elevator car 4. The scheme is that a switch group and a sensor group 2 form a control circuit, and the control circuit is electrically connected with a main controller 1 to form a control loop. The switch group comprises an overhaul main switch 31, a limit switch group and an elevator control switch group. Wherein the maintenance master switch 31 is a master control switch for maintenance operation; the limit switch group comprises a plurality of limit switches 32 which are respectively arranged above and below the elevator car 4; the elevator control switch group is used for controlling the ascending and descending of the elevator, and the switch of the control switch group and the limit switch 32 are connected in series to form a control loop, when the limit switch 32 is triggered, the power supply channel formed by the elevator control switch group is cut off.
Referring to fig. 2, the interface of the main controller 1 includes:
the main power supply port 11, the main power supply port 11 is used for being connected with a power supply, and the main power supply port 11 is connected with a 24V direct current power supply;
a working state switching interface 12 to which the sensor group 2 is connected to switch the elevator to a normal state or an inspection state, wherein when the working state switching interface 12 is on, the elevator is in the normal working state, and when the elevator is off, the elevator is in the inspection state;
a repair uplink interface 13 for accessing an uplink signal of the control elevator;
the service down interface 14 is used for accessing the down signal of the control elevator.
Through this scheme, at first respond to the human body with the help of the sensor in sensor group 2, when sensing that elevator car 4 top has someone, main control unit 1 makes the elevator get into the maintenance state, does not respond the inside or outside call of elevator. In order to control the movement of the elevator during maintenance, the elevator control switch group is also arranged in the scheme. In case the sensor group 2 senses that there is a worker, the worker can also control the elevator movement through the elevator control switch group. In order to ensure the safety of the staff in this state, the limit switch 32 is further provided in the scheme, and the highest and lowest movement positions of the elevator are limited by the limit switch 32, so that the staff is prevented from being extruded.
On the basis of the above-described embodiments, referring to fig. 1, an elevator car 4 and an elevator hoistway 5 are shown in fig. 1. The sensor group 2 comprises at least two sensors that can detect a human body. The sensor of the sensor group 2 is arranged in the upper corner area of the elevator car 4, and the sensing direction of the sensor is toward the upper middle position of the elevator car 4. The sensor can be an infrared sensor, the cost of the sensor is low, and the function of the sensor can meet the requirements of the scheme. Laser or ultrasonic sensors and the like can also be selected.
On the basis of the above embodiment, the service main switch 31 includes two switch paths of a normally closed path and a normally open path; the sensors in the sensor group 2 form a normally closed switch in the control circuit; the normally closed path of the maintenance master switch 31 is connected in series with the sensor of the sensor group 2 and then connected into the working state switching interface. The normally open path of the maintenance master switch 31 is connected in series with the elevator control switch group and the limit switch 32 to form a control loop. The maintenance master switch 31 can be a knob switch.
The elevator control switch group includes a service up switch 33 and a service down switch 34. Wherein, the overhaul uplink switch 33 is electrically connected with the overhaul uplink interface 13 and is used for controlling the elevator to uplink during overhaul; the overhaul downlink switch 34 is electrically connected with the overhaul downlink interface 14 and is used for controlling the elevator to downlink during overhaul.
The elevator control switch group further comprises an overhaul public switch 35, wherein the overhaul public switch 35 is connected in series with a normally open path of the overhaul main switch 31 and the limit switch 32 to form a main control circuit for elevator control, and the output end of the main control circuit is connected in parallel with the overhaul uplink switch 33 and the overhaul downlink switch 34. Limit switches 32 in the limit switch group are divided into an upper limit switch provided above the elevator car 4 and a lower limit switch provided below the elevator car 4. The upper limit switch is arranged on the top collision bow of the elevator car 4, and the lower limit switch is arranged on the bottom collision bow of the elevator car 4.
When the elevator operates normally, the power supply reaches the working state switching interface 12 through the normally closed contact of the maintenance main switch 31 and the normally closed contact of the sensor, and the system is considered to be in a normal state and can operate automatically.
When the maintenance personnel arrives at the car roof, the sensor senses that personnel enter, the normally closed contact is disconnected, the power supply cannot reach the working state switching interface 12, the main controller 1 exits from automatic operation, and enters into an overhaul state. Even if maintenance personnel forget to operate the maintenance master switch 31, the elevator can also exit from automatic operation, and the outbound call and the elevator car inner layer selection are both forbidden, so that the safety of the elevator car top maintenance personnel is ensured.
After the maintenance personnel needs to operate the maintenance master switch 31 to a maintenance state, the elevator can be operated in the maintenance state.
When maintenance personnel press the maintenance public switch 35 and the maintenance uplink switch 33, the 24V power supply reaches the maintenance uplink interface 13 through the normally open contact of the maintenance main switch 31, the normally closed contact of the limit switch 32 and the normally open contact of the maintenance uplink switch 33, the elevator can move upwards in maintenance, when the elevator moves upwards to the top to collide with the bow, the upper limit switch Guan Changbi is disconnected, the elevator stops moving, a safety space can be reserved on the car roof, and the maintenance personnel are prevented from being damaged by extrusion.
Similar to the above process, when the overhaul public switch 35 and the overhaul downlink switch 34 are pressed, the elevator can overhaul and run downwards, when the elevator runs downwards to the bottom to collide with the bow, the contact of the lower limit switch Guan Changbi is disconnected, the elevator stops running, a safety space can be reserved in the pit, and the maintenance personnel is prevented from being injured by extrusion.
After the maintenance operation is finished, maintenance personnel need to operate the maintenance master switch 31 to a normal state and completely withdraw from the car roof, the normally closed contact corresponding to the sensor is restored to a closed state, the elevator can enter an automatic running state, and the elevator is called outwards and the elevator is restored to use in a selected layer.
Finally, it should be noted that: the above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. An elevator maintenance safety system is characterized by comprising,
the main controller (1) is provided with a plurality of interfaces for controlling the movement or stop of the elevator;
the sensor group (2) comprises a plurality of sensors which are distributed on the top of the elevator car (4); the sensor sensing ends of the sensor groups (2) face the top area of the elevator car (4), and the total sensing range of the sensors of the sensor groups (2) covers the top upper area of the elevator car (4);
the switch group comprises a plurality of switches, the switch group and the sensor group (2) form a control circuit, and the control circuit is electrically connected with the main controller (1) to form a control loop; the switch group includes:
the maintenance master switch (31) is a master control switch for maintenance operation;
the limit switch group comprises a plurality of limit switches (32) which are respectively arranged above and below the elevator car (4);
and the elevator control switch group is used for controlling the ascending and descending of the elevator, the switch of the control switch group and the limit switch (32) are connected in series to form a control loop, and when the limit switch (32) is triggered, the power supply channel formed by the elevator control switch group is cut off.
2. Elevator service safety system according to claim 1, characterized in that the interface of the main controller (1) comprises:
a main power supply port (11) for accessing a power supply;
a working state switching interface (12), to which the sensor group (2) is connected to switch the elevator to a normal state or an overhaul state;
the repair uplink interface (13) is used for accessing an uplink signal of the control elevator;
and the overhaul downlink interface (14) is used for accessing a downlink signal of the control elevator.
3. Elevator service safety system according to claim 1, characterized in that the sensor group (2) comprises at least two human body detectable sensors.
4. Elevator service safety system according to claim 3, characterized in that the sensor of the sensor group (2) is arranged in the upper corner area of the elevator car (4), the sensing direction of the sensor being towards the upper middle position of the elevator car (4).
5. Elevator service safety system according to claim 2, characterized in that the service master switch (31) comprises two switching paths, a normally closed path and a normally open path; the sensors in the sensor group (2) form a normally closed switch in a control circuit; and the normally closed passage of the maintenance main switch (31) is connected with the sensor of the sensor group (2) in series and then connected with the working state switching interface.
6. Elevator service safety system according to claim 5, characterized in that the normally open path of the service master switch (31) is connected in series with the elevator control switch group and limit switch (32) to form a control loop.
7. The elevator service safety system of claim 6 wherein the elevator control switch set comprises:
a maintenance uplink switch (33) electrically connected with the maintenance uplink interface (13) and used for controlling the elevator to uplink during maintenance;
and the overhaul downlink switch (34) is electrically connected with the overhaul downlink interface (14) and is used for controlling the elevator to downlink during overhaul.
8. The elevator service safety system of claim 7 wherein the elevator control switch set further comprises:
and the overhaul public switch (35) is connected in series with a normally open passage of the overhaul main switch (31) and the limit switch (32) to form a main control circuit for elevator control, and the output end of the main control circuit is connected in parallel with the overhaul uplink switch (33) and the overhaul downlink switch (34).
9. Elevator service safety system according to any of claims 1-8, characterized in that the limit switches (32) in the limit switch group are divided into an upper limit switch arranged above the elevator car (4) and a lower limit switch arranged below the elevator car (4).
10. Elevator service safety system according to claim 9, characterized in that the upper limit switch is arranged on the top striker of the elevator car (4) and the lower limit switch is arranged on the bottom striker of the elevator car (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475789.7U CN220078252U (en) | 2023-06-12 | 2023-06-12 | Elevator overhauls safety coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475789.7U CN220078252U (en) | 2023-06-12 | 2023-06-12 | Elevator overhauls safety coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220078252U true CN220078252U (en) | 2023-11-24 |
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ID=88828381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321475789.7U Active CN220078252U (en) | 2023-06-12 | 2023-06-12 | Elevator overhauls safety coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220078252U (en) |
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2023
- 2023-06-12 CN CN202321475789.7U patent/CN220078252U/en active Active
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