Handrail automatically tensioning system and a method for adjusting tension level of handrail

An automatic handrail tensioning system, comprising:

• a sensor for detecting information that reflects a tension degree of the handrail;
• a controller for determining tension degree information of the handrail according to the information detected by the sensor, and generating a corresponding control instruction for adjusting the tension degree of the handrail based on the tension degree information;
• and
• an actuator for driving a tensioning device to adjust the tension degree of the handrail based on the control instruction;
• wherein the sensor comprises a ranging sensor for detecting spacing information between the handrail and a handrail guideway;
• wherein the controller is further used to determine the tension degree information of the tension degree of the handrail being too tight when the spacing information is greater than or equal to a predetermined spacing threshold.

An automatic handrail tensioning system, comprising:

• a sensor for detecting information that reflects a tension degree of the handrail;
• a controller for determining tension degree information of the handrail according to the information detected by the sensor, and generating a corresponding control instruction for adjusting the tension degree of the handrail based on the tension degree information;
• and
• an actuator for driving a tensioning device to adjust the tension degree of the handrail based on the control instruction;
• wherein the sensor comprises a ranging sensor for detecting spacing information between the handrail and a handrail guideway;
• wherein the ranging sensor is mounted below the handrail corresponding to an upper corner part of the escalator.

An automatic handrail tensioning system, comprising:

• a sensor for detecting information that reflects a tension degree of the handrail;
• a controller for determining tension degree information of the handrail according to the information detected by the sensor, and generating a corresponding control instruction for adjusting the tension degree of the handrail based on the tension degree information;
• and
• an actuator for driving a tensioning device to adjust the tension degree of the handrail based on the control instruction;
• wherein the sensor comprises a ranging sensor for detecting spacing information between the handrail and a handrail guideway;
• wherein the tensioning device comprises:
• a body;
• wheels acting on an adjusted handrail;
• main screw rod substantially perpendicular to the adjusted handrail;
• an upper platen;
• a lower platen substantially parallel to the upper platen;
• and
• a compression elastomer between the upper platen and the lower platen;
• wherein the main screw rod is connected with a output end of the actuator, when the main screw rod is driven by the actuator to rotate in a first direction/second direction, the upper platen is driven to move upwards/downwards along the main screw rod, thus the lower platen is driven by the compression elastomer to move upwards/downwards, and the lower platen drives the wheel to release/increase the tension of the handrail.

A method for adjusting a tension degree of a handrail, the method comprising:

• detecting information that reflects the tension degree of the handrail;
• determining tension degree information of the handrail according to the detected information;
• generating a corresponding control instruction for adjusting the tension degree of the handrail based on the tension degree information;
• and
• driving a tensioning device to adjust the tension degree of the handrail based on the control instruction;
• wherein determining the tension degree information includes quantitatively determining quantitative tension degree information of the handrail according to the detected information;
• wherein generating the corresponding control instruction includes generating the corresponding control instruction for quantitatively adjusting the tension degree of the handrail based on the quantitative tension degree information.

A method for adjusting a tension degree of a handrail, the method comprising:

• detecting information that reflects the tension degree of the handrail;
• determining tension degree information of the handrail according to the detected information;
• generating a corresponding control instruction for adjusting the tension degree of the handrail based on the tension degree information;
• and
• driving a tensioning device to adjust the tension degree of the handrail based on the control instruction;
• wherein the detected information comprises spacing information between the handrail and a handrail guideway;
• wherein determining the tension degree information includes determining the tension degree information of the tension degree of the handrail being too tight when the spacing information is greater than or equal to a predetermined spacing threshold.