CN214780172U - Automatic handrail area on-line monitoring device of staircase - Google Patents
Automatic handrail area on-line monitoring device of staircase Download PDFInfo
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- CN214780172U CN214780172U CN202120678969.XU CN202120678969U CN214780172U CN 214780172 U CN214780172 U CN 214780172U CN 202120678969 U CN202120678969 U CN 202120678969U CN 214780172 U CN214780172 U CN 214780172U
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- safety relay
- escalator
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- handrail belt
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Abstract
The utility model provides an automatic handrail area on-line monitoring device of staircase. The device comprises a distance sensor having an output, a processor having an input and an output, and a first safety relay having a coil and a set of normally closed contacts; the output end of the distance sensor is connected with the input end of the processor; the output end of the processor is connected with one end of a coil of the first safety relay, and the other end of the coil of the first safety relay is grounded; and a group of normally closed contacts of the first safety relay are used for being connected in series with a loop where a driving main machine of the escalator and a power supply of the working brake are located. Whether the gap on the hand strap is larger than a preset threshold value is judged by monitoring the distance between the hand strap and the distance sensor, so that the gap on the hand strap is monitored in real time, and the hands of passengers are prevented from being pinched by the gap on the hand strap.
Description
Technical Field
The utility model relates to an automatic escalator technical field, in particular to handrail area on-line monitoring device of automatic escalator.
Background
The handrail belt is one of the main parts of the escalator. When a passenger rides an escalator, the passenger usually needs to hold the handrail belt by hands. The surface of the handrail belt may be cracked or broken to form cracks due to abrasion or damage of external force caused by the long-term operation of the handrail belt. If the passenger's hand is held in the split position, skin or muscle of the hand may be injured. The handrail belt is generally of a C-shaped configuration and the fingers are generally held on the side and bottom surfaces of the handrail belt (i.e. the open position of the C-shaped configuration). When the side surface and the bottom surface of the handrail belt are provided with the cracks, passengers are not easy to perceive the cracks, and when fingers tightly hold the cracks on the side surface or the bottom surface of the handrail belt, the fingers are easy to be injured by clamping.
However, there is currently no monitoring device for monitoring a rip on the handrail belt, resulting in the possibility that the passenger's hand may be pinched by the rip on the handrail belt.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automatic handrail area on-line monitoring device of staircase to solve and do not have the monitoring devices's that is used for monitoring split on the handrail area at present technical problem.
In order to solve the technical problem, the utility model provides an escalator handrail belt on-line monitoring device, the device includes distance sensor, treater and first safety relay, the distance sensor has an output, the treater has an input and an output, the first safety relay has a coil and a set of normally closed contact;
the output end of the distance sensor is connected with the input end of the processor; the output end of the processor is connected with one end of a coil of the first safety relay, and the other end of the coil of the first safety relay is grounded; and a group of normally closed contacts of the first safety relay are used for being connected in series with a loop where a driving main machine of the escalator and a power supply of the working brake are located.
Optionally, the processor is a dual channel structure.
Optionally, the apparatus further comprises a second safety relay having a coil and a set of normally closed contacts; the second output end of the processor is connected with one end of a coil of the second safety relay, and the other end of the coil of the second safety relay is grounded; and the normally closed contact of the second safety relay is connected with a loop in which the normally closed contact of the first safety relay is positioned in series.
Optionally, the device is mounted in a drive compartment of an escalator.
Optionally, the drive chamber comprises a drive wheel for driving the handrail belt to rotate, and the device is installed below the drive wheel.
Optionally, the distance sensor is located right below the driving wheel, and a transmitting end of the distance sensor is parallel to the handrail right below the driving wheel.
Optionally, the escalator comprises two handrail belts, and each handrail belt is provided with one device.
The utility model provides a pair of automatic escalator's handrail area on-line monitoring device judges whether the breach on the handrail area is greater than and predetermines the threshold value through the distance between monitoring handrail area and the distance sensor to monitoring in real time the breach on the handrail area, preventing that passenger's hand is pressed from both sides the wound by the breach on the handrail area.
Drawings
Fig. 1 is a schematic block diagram of an on-line handrail belt monitoring device for an escalator according to an embodiment of the present invention.
Fig. 2 is an installation schematic diagram of the on-line handrail belt monitoring device for an escalator according to an embodiment of the present invention.
[ reference numerals are described below ]:
101-distance sensor, 102-processor, 103-first safety relay; 1-handrail belt, 11-upper surface of handrail belt, 12-lower surface of handrail belt, 2-gap, 3-driving wheel and 4-tension wheel.
Detailed Description
In order to make the objects, advantages and features of the present invention clearer, the present invention provides an automatic escalator handrail belt on-line monitoring device, which is described in further detail below with reference to the accompanying drawings. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Referring to fig. 1 and 2, the present embodiment provides an on-line handrail belt monitoring device for an escalator, the device comprising a distance sensor 101, a processor 102 and a first safety relay 103, the distance sensor 101 having an output terminal, the processor 102 having an input terminal and an output terminal, the first safety relay 103 having a coil and a set of normally closed contacts; the output end of the distance sensor 101 is connected with the input end of the processor 102; the output end of the processor 102 is connected with one end of the coil of the first safety relay 103, and the other end of the coil of the first safety relay 103 is grounded; and a group of normally closed contacts of the first safety relay 103 are used for being connected with a power supply of a driving main machine and a working brake of the escalator in series.
The distance sensor 101 is used for measuring the distance between the handrail belt 1 and the sensor and transmitting the measured distance to the processor 102; the processor 102 compares the distance with a preset threshold value, if the distance is smaller than or equal to the preset threshold value, the processor 102 does not output, if the distance is larger than the preset threshold value, the processor 102 outputs a voltage signal to electrify the first safety relay 103, so that the normally closed contact is disconnected, the power supply of a driving host machine and a working brake of the escalator is disconnected, and the escalator stops running by acting after the working brake is disconnected; the preset threshold may be 5 mm.
According to the on-line monitoring device for the hand strap of the escalator, whether the gap 2 in the hand strap 1 is larger than the preset threshold value or not is judged by monitoring the distance between the hand strap 1 and the distance sensor 101, so that the gap 2 in the hand strap 1 is monitored in real time, and the hands of passengers are prevented from being pinched by the gap 2 in the hand strap 1.
Optionally, referring to fig. 1, the processor 102 is a dual channel architecture. The processor 102 adopts a dual-channel structure, each channel can independently complete preset safety actions, and the dual channels have a self-diagnosis function, namely, the channels can mutually diagnose and send diagnosis results, so that the safety performance of the device can be improved.
Optionally, the apparatus further comprises a second safety relay having a coil and a set of normally closed contacts; the second output end of the processor is connected with one end of a coil of the second safety relay, and the other end of the coil of the second safety relay is grounded; and the normally closed contact of the second safety relay is connected with a loop in which the normally closed contact of the first safety relay is positioned in series. Two sets of safety relays are arranged in a loop where a power supply of a driving main machine and a working brake of the escalator are located, so that the situation that one set of safety relays breaks down and cannot normally run can be prevented, and the loop where the power supply is located can be disconnected by the other safety relay, so that the escalator stops running.
Optionally, the device is mounted in a drive compartment of an escalator. The driving chamber is positioned at the topmost part of the escalator, the space in the driving chamber is large, and the device is convenient to install.
Alternatively, referring to fig. 1 and 2, the driving chamber comprises a driving wheel 3 for driving the handrail 1 to rotate, and the device is mounted below the driving wheel 3. The tensioning wheels 4 are arranged on two sides of the driving wheel 3, the upper surface 11 of the handrail belt is in direct contact with the tensioning wheels 4, and the lower surface 12 of the handrail belt is opposite to the distance sensor 101, so that the gap 2 on the lower surface 12 of the handrail belt can be monitored. In other embodiments, the correspondence of the distance sensor 101 to the surface of the handrail belt 1 can be adjusted according to actual requirements. For example, the distance sensor 101 is directly opposite to the outer side or the inner side of the handrail belt 1.
Alternatively, referring to fig. 1 and 2, the distance sensor 101 is located directly below the driving wheel 3, and the emitting end of the distance sensor 101 is parallel to the handrail 1 directly below the driving wheel 3. The emitting end of the distance sensor 101 refers to the end that emits the measuring signal, and the emitting end of the distance sensor 101 is parallel to the handrail belt 1 to measure the depth of the rip 2.
Alternatively, referring to fig. 2, the escalator comprises two handrail belts 1, and each handrail belt 1 is provided with one device. This allows monitoring of the split 2 in both handrail belts 1 simultaneously.
To sum up, the utility model provides a pair of automatic escalator's handrail area on-line monitoring device judges whether breach 2 on handrail area 1 is greater than and predetermines the threshold value through the distance between monitoring handrail area 1 and the distance sensor 101 to monitoring breach 2 on handrail area 1 in real time prevents that passenger's hand from being hindered by 2 clamps of breach on handrail area 1.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art according to the above disclosure are within the scope of the present invention.
Claims (7)
1. The device is characterized by comprising a distance sensor, a processor and a first safety relay, wherein the distance sensor is provided with an output end, the processor is provided with an input end and an output end, and the first safety relay is provided with a coil and a group of normally closed contacts;
the output end of the distance sensor is connected with the input end of the processor; the output end of the processor is connected with one end of a coil of the first safety relay, and the other end of the coil of the first safety relay is grounded; and a group of normally closed contacts of the first safety relay are used for being connected in series with a loop where a driving main machine of the escalator and a power supply of the working brake are located.
2. The escalator handrail belt on-line monitoring device as claimed in claim 1, wherein the processor is a dual-channel structure.
3. The escalator handrail belt on-line monitoring device as claimed in claim 1, wherein said device further comprises a second safety relay, said second safety relay having a coil and a set of normally closed contacts; the second output end of the processor is connected with one end of a coil of the second safety relay, and the other end of the coil of the second safety relay is grounded; and the normally closed contact of the second safety relay is connected with a loop in which the normally closed contact of the first safety relay is positioned in series.
4. An escalator handrail belt on-line monitoring device as claimed in claim 1, wherein said device is installed in the drive room of an escalator.
5. An escalator handrail belt on-line monitoring device as claimed in claim 4, wherein the drive chamber includes a drive wheel for driving rotation of the handrail belt, the device being mounted below the drive wheel.
6. An escalator handrail belt on-line monitoring device as claimed in claim 5, wherein said distance sensor is located directly below said driving wheel, and the emitting end of said distance sensor is parallel to the handrail belt directly below said driving wheel.
7. An escalator handrail belt on-line monitoring device as claimed in claim 1, wherein said escalator comprises two handrail belts, one for each handrail belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120678969.XU CN214780172U (en) | 2021-04-01 | 2021-04-01 | Automatic handrail area on-line monitoring device of staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120678969.XU CN214780172U (en) | 2021-04-01 | 2021-04-01 | Automatic handrail area on-line monitoring device of staircase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214780172U true CN214780172U (en) | 2021-11-19 |
Family
ID=78668717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120678969.XU Active CN214780172U (en) | 2021-04-01 | 2021-04-01 | Automatic handrail area on-line monitoring device of staircase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214780172U (en) |
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2021
- 2021-04-01 CN CN202120678969.XU patent/CN214780172U/en active Active
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