CN105836590A - Comb plate stress detecting device of escalator - Google Patents

Abstract

The invention discloses a force detection device for a comb plate of an escalator. It includes a guide installed on the steps, a tension gauge fixed on the guide and a push frame movably arranged on the guide. The push frame can move left and right under the guidance of the guide. One end of the push frame It is in contact with the end of the comb plate, and the force-bearing end of the tension gauge is fixedly connected with the push frame. When the steps move toward the comb plate, the guide moves toward the comb plate driven by the steps, and the push frame Under the action of the tension at the force-bearing end of the tension meter, it is opposed to the comb-tooth plate, and the tension meter detects the force on the comb-tooth plate. The push frame of the present invention can withstand the comb-toothed plate, the guide can move along with the steps to the direction close to the comb-toothed plate, and the tension meter can accurately detect the force between the comb-toothed plate and the steps, thereby judging the flexibility Spend. The detection device has the advantages of simple structure, convenient detection, sensitive detection and high reliability of detection results.

Description

A comb-tooth plate force detection device for an escalator

technical field

The invention belongs to the technical field of elevators, and in particular relates to a force detection device for a comb plate of an escalator.

Background technique

With the increasing use of escalators, the safety problems encountered by escalators in various use environments have attracted more and more attention. At present, the comb meshing between the steps of escalators or moving walks in shopping malls and supermarkets and the comb plate at the end is relatively tight. If there is something or people stuck between the step and the comb plate, it will cause a squeeze accident. In order to prevent the occurrence of safety accidents caused by the pinching between the comb plate and the steps, a safety electrical trigger switch is currently installed behind the comb plate, that is, when the comb plate is subjected to a certain extrusion force, The comb-tooth plate moves backwards to touch the safety electric trigger switch, and the safety electric trigger switch sends a signal to realize the stop of the elevator, reducing the occurrence of personal accidents caused by accidental squeezing. However, in current use, it is found that if something or a person is stuck between the steps and the comb plate, and the comb plate cannot move flexibly, the electrical safety device cannot be triggered, which may cause greater harm to the human body, or damage the escalator. Equipment causes greater damage. At present, installation or maintenance personnel need certain experience and skills to judge whether the comb plate can move flexibly by artificially pedaling the comb plate. The judgment is subjective and affects the accuracy of judgment.

Contents of the invention

In view of this, the purpose of the present invention is to overcome the defects of the prior art, to provide a comb-tooth plate force detection device of an escalator capable of detecting the critical value of the comb-tooth plate in a safe range, and to ensure that the comb-tooth plate Reliability of flexibility judgments.

In order to achieve the above purpose, the present invention provides a comb-tooth plate force detection device of an escalator, which is used to detect the pinching force between the comb-tooth plate and the steps. The force detection device of the comb-teeth plate of the escalator includes a guide installed on the steps, a tension gauge fixedly installed on the guide and a push frame movably arranged on the guide, and the push frame can be placed on the guide Move left and right under the action of guidance, one end of the push frame is in contact with the end of the comb plate, and the stressed end of the tension gauge is fixedly connected with the push frame. When the steps move toward the direction close to the comb plate, the guide Driven by the steps, it moves toward the comb-tooth plate, and the push frame resists the comb-tooth plate under the tension of the force-bearing end of the tension gauge, and the tension gauge detects the force on the comb-tooth plate.

Preferably, the push frame is slidably connected with the guide piece.

Specifically, the guide member is a hollow sleeve, and the push frame is passed through the sleeve.

Preferably, the guide is detachably installed on the steps.

Specifically, the lower part of the guide is fixed with a clamping plate, the clamping plate is L-shaped, and the clamping plate is clamped at the corner of the step. When the step moves toward the direction close to the comb plate, the step Withstand the clamping plate to drive the guide to move towards the direction close to the comb plate.

Further, the push frame includes a push rod and a top plate assembly fixedly installed at the end of the push rod, the top plate assembly is U-shaped, and the top plate assembly includes an upper plate and a lower plate arranged in parallel up and down and connecting the upper plate and the lower plate As for the side plate of the plate, a groove is formed between the upper plate, the lower plate and the side plate, and the end of the comb tooth plate extends into the groove and contacts the side plate.

Specifically, the push frame also includes a bolt threaded with the push rod, the bolt is erected on the push rod, the bolt is located near the end of the push rod away from the comb plate, and the force-bearing end of the tension gauge Fixed connection with bolts.

Compared with the prior art, the comb-tooth plate force detection device of the escalator of the present invention has the following advantages: the push frame can withstand the comb-tooth plate, and the guide can move along with the steps to the direction close to the comb-tooth plate, so that it can simulate the presence of objects. Or when someone is stuck between the comb plate and the steps, the tension meter can accurately detect the force between the comb plate and the steps, so as to judge the flexibility of the comb plate. The detection device has the advantages of simple structure, convenient detection, sensitive detection and high reliability of detection results.

Description of drawings

Fig. 1 is the front view of the comb-tooth plate force detection device of a kind of escalator of the present invention;

Fig. 2 is a top view of a comb force detection device of an escalator according to the present invention;

Fig. 3 is a front view of the working state of the comb force detection device of an escalator of the present invention;

Fig. 4 is a top view of the working state of the comb plate force detection device of an escalator of the present invention;

1. Guide piece; 2. Push frame; 3. Rally gauge; 4. Clamping plate; 5. Push rod; 6. Top plate assembly; 7. Bolt; 61. Upper plate; 62. Lower plate; 63. Side plate; 100 , comb plate; 101, steps.

detailed description

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in FIGS. 1 to 4 , a comb-tooth plate force detection device of an escalator is used to detect the squeezing force between the comb-tooth plate 100 and the steps 101 . The comb force detection device of the escalator includes a guide 1 installed on the step 101 , a tension gauge 3 fixedly installed on the guide 1 , and a push frame 2 movably arranged on the guide 1 . The pushing frame 2 is slidably connected with the guide piece 1 . The pushing frame 2 can move left and right under the guidance of the guide piece 1 . In this embodiment, the guide member 1 is a hollow sleeve, and the pushing frame 2 is passed through the sleeve. The lower part of the sleeve is fixedly provided with a clamping plate 4 , which is L-shaped. The clamping plate 4 is clamped at the corner of the step 101 so that the sleeve is detachably installed on the step 101 .

The push frame 2 includes a push rod 5 , a top plate assembly 6 fixedly installed at the end of the push rod 5 , and a bolt 7 threadedly connected with the push rod 5 . The top plate assembly 6 is U-shaped, and the top plate assembly 6 includes an upper plate 61 and a lower plate 62 arranged in parallel up and down and a side plate 63 connecting the upper plate 61 and the lower plate 62, the upper plate 61, the lower plate 62 and the Grooves are formed between the side plates 63 , and the ends of the comb plate 100 extend into the grooves and contact the side plates 63 . The bolt 7 is erected on the push rod 5 , and the bolt 7 is located near the end of the push rod 5 away from the comb plate 100 .

The ends of the tension gauge 3 are flatly fixed on the upper part of the sleeve, the dial of the tension gauge 3 faces upwards, and the stressed end of the tension gauge 3 protrudes from the dial and is fixedly connected with the bolt 7 .

When the present invention is in use, first one of the small comb plates on the comb plate 100 at the head and tail ends of the escalator is removed, the clamp plate 4 is inserted into the gap between the comb plate 100 and the step 101, and the clamp plate 4 is pasted. At the corner of the step 101 , the top plate assembly 6 is in contact with the end of the comb plate 100 . The step 101 is driven to move toward the comb plate 100 by external equipment such as a manual barring, and the step 101 withstands the clamping plate 4 and drives the sleeve to move toward the comb plate 100 . The sleeve drives the tension meter 3 to move in the direction close to the comb plate 100, the force-bearing end of the tension meter 3 pulls the bolt 7 so that the side plate 63 is against the comb plate 100, and the tension meter 3 detects the force on the comb plate 100 size.

It can be seen that the comb-tooth plate force detection device of the escalator according to the present invention can accurately detect the force of the comb-tooth plate 100. When the force on the board 100 reaches the limit value for safe operation, the comb-toothed board 100 retreats to trigger the electrical safety electrical trigger switch, and the safety electrical trigger switch sends a signal to realize the elevator stop. Therefore, the limit force value of the comb plate 100 can be accurately known through the reading of the tension meter 3, thereby accurately judging the flexibility of the comb plate 100. If the flexibility is found to be insufficient, adjust the escalator. The invention ensures the reliability of detection.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and its purpose is to allow those familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot limit the protection scope of the present invention with this. Equivalent changes or modifications made in the spirit shall fall within the protection scope of the present invention.

Claims (7)

1. A comb-tooth plate force detection device of an escalator, used to detect the squeeze force between the comb-tooth plate (100) and the step (101), characterized in that it includes a guide installed on the step (101) (1), the tension gauge (3) fixedly installed on the guide (1) and the push frame (2) movable on the guide (1), the push frame (2) can be placed on the guide (1) ) to move left and right, one end of the push frame (2) is in contact with the end of the comb plate (100), and the force-bearing end of the tension gauge (3) is fixedly connected to the push frame (2). When (101) moves towards the comb-tooth plate (100), the guide (1) moves towards the direction to approach the comb-tooth plate (100) driven by the steps (101), and the push frame (2) under tension The gauge (3) is offset against the comb plate (100) under the action of tension at the stressed end, and the tension gauge (3) detects the force of the comb plate (100). 2 . The device for detecting the force of the comb plate of an escalator according to claim 1 , characterized in that: the push frame ( 2 ) is slidably connected to the guide piece ( 1 ). 3. The device for detecting the force of the comb plate of an escalator according to claim 2, characterized in that: the guide (1) is a hollow sleeve inside, and the pushing frame (2) is installed in the sleeve inside the barrel. 4 . The device for detecting the force of the comb plate of an escalator according to claim 1 , characterized in that: the guide ( 1 ) is detachably installed on the steps ( 101 ). 5. A device for detecting the force of a comb plate of an escalator according to claim 1 or 4, characterized in that: the lower part of the guide (1) is fixedly provided with a clamping plate (4), and the clamping plate ( 4) It is L-shaped, and the clamping plate (4) is clamped at the corner of the step (101). When the step (101) moves toward the comb plate (100), the step (101) withstands the The clamping plate (4) drives the guide piece (1) to move towards the comb plate (100). 6. The device for detecting the force of the comb plate of an escalator according to claim 1, characterized in that: the push frame (2) includes a push rod (5) and a A top plate assembly (6), the top plate assembly (6) is U-shaped, and the top plate assembly (6) includes an upper plate (61) and a lower plate (62) arranged in parallel up and down and connecting the upper plate (61) and the lower plate (62) side plate (63), the upper plate (61), the lower plate (62) and the side plate (63) form a groove, and the end of the comb tooth plate (100) extends into the groove The inside is in contact with the side plate (63). 7. A comb-tooth plate force detection device for an escalator according to claim 6, characterized in that: the push frame (2) further includes a bolt (7) threadedly connected with the push rod (5), the The bolt (7) is erected on the push rod (5), and the bolt (7) is located near the end of the push rod (5) away from the comb plate (100), and the stressed end of the tension gauge (3) is connected to The bolt (7) is fixedly connected.