CN209702079U - A kind of automatic staircase comb plate safeguard construction - Google Patents

Abstract

The utility model discloses a kind of automatic staircase comb plate safeguard constructions, movable fishback and leading-edge pedal including being fixedly arranged at the front end with the lobate comb teeth of a row, wherein, the rear end of the activity fishback and the front end of leading-edge pedal are connected by shaft, the activity fishback is formed with mounting groove at connection shaft, switch block is installed in the mounting groove, limit switch and reset spring, the switch block is sector structure, the center is connect with shaft, the limit switch is set to the top of switch block, and it is located at the inside upper surface of mounting groove, one end of the reset spring is built at the outer arc of switch block and in the formed cylindrical void in lower end of groove structure, the limit switch connects to form safety return circuit with the emergency stop switch of escalator.The utility model can effectively solve the problem that when escalator is blocked by foreign matter, respond rapidly to the problem of touching limit switch and stopping escalator, improve security reliability.

Description

A kind of automatic staircase comb plate safeguard construction

Technical field

The utility model relates to the technical fields of escalator security protection, refer in particular to a kind of automatic staircase comb plate peace Full structure.

Background technique

Fishback is located at the both ends exit of escalator, is the pith for designing passenger's uplink, the safety of downlink, It is the safety guard of staircase.Fishback is engaged with tooth socket on step pedal face, and tooth slot structure causes on step pedal face Might have that foreign matter blocks or some abnormal conditions occur, for example, Ms spike heel buckle at tooth socket, rope or hair Be stuck at tooth socket, these situations be all it is extremely hazardous, if escalator cannot be stopped in time, be likely to result in major accident. And the manual emergency stop switch for being located at staircase side is often difficult to reach the requirement of timeliness, security risk is huge.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, propose a kind of automatic staircase comb plate safety knot Structure can effectively solve the problem that when escalator is blocked by foreign matter, responds rapidly to and touches limit switch and stop escalator, with Improve the security reliability problem of escalator.

To achieve the above object, a kind of technical solution provided by the utility model are as follows: automatic staircase comb plate safety knot Structure, movable fishback and leading-edge pedal including being fixedly arranged at the front end with the lobate comb teeth of a row, wherein the rear end of the activity fishback It is connect with the front end of leading-edge pedal by shaft, and the connecting end surface of the rear end of the movable fishback forms arcuate structure, institute The connecting end surface for stating the front end of leading-edge pedal forms the groove structure being meshed with the arcuate structure of movable fishback, the activity The front end of fishback can be flipped up under foreign matter effect, and the surface of arcuate structure and groove structure is pasted always in switching process It closes, can prevent other foreign matters from falling into junction, the activity fishback is formed with mounting groove, the installation at connection shaft Switch block, limit switch and reset spring are installed, the switch block is sector structure, and the center and shaft connect in slot It connecing, and can be kept fixed during movable fishback is flipped up, the limit switch is set to the top of switch block, And be located at the inside upper surface of mounting groove, one end of the reset spring is built at the outer arc of switch block and groove structure The formed cylindrical void in lower end in, and inconsistent with the bottom of cylindrical void, the other end contacts at the interior of mounting groove At portion upper surface, the limit switch connects to form safety return circuit with the emergency stop switch of escalator, upward in movable fishback Drive it to move downward during overturning and touch switch block, thus change the starting of its switch state and real-time from The emergency stop switch of dynamic staircase guarantees that escalator in abnormal cases can be out of service rapidly.

Further, spring block, institute are equipped on the arcuate structure of the movable fishback and positioned at the top of reset spring The bottom for stating spring block is flushed with the inside upper surface of mounting groove, and the table on the bottom of spring block and the inside of mounting groove A circular groove identical with reset spring diameter is collectively formed on face, the end of the reset spring extend into circular groove In, for when foreign matter disappears, motion profile when to reset spring deformation to be limited, and movable fishback is enable to reset It is fast and accurately resetted under the action of spring tension.

Further, the bottom of the spring block is equipped with circular groove identical with reset spring diameter, the reset bullet The upper end of spring is extend into circular groove, to limit motion profile when reset spring deformation.

Further, the spring block is half taper type structure.

Further, the leading-edge pedal is equipped with screw hole, for fixing and guaranteeing itself and ground level, upper surface shape At there is non-slip groove.

The utility model compared with prior art, have the following advantages that with the utility model has the advantages that

The utility model structure is simple, reliable performance, stability are high, and movable fishback is connect with leading-edge pedal by shaft Structure so that movable fishback responds rapidly to abnormal conditions；It is small to be flipped up angle for the activity fishback simultaneously, will not be right Passenger's uplink and downlink has an impact；Limit switch connects to form safety return circuit with emergency stop switch, ensure that escalator in movable comb It after tooth plate is blocked by foreign matter, can deal with to abnormal conditions rapidly, to stop staircase operation, there is fabulous real-time response Effect improves the security reliability of escalator.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model in normal state.

Fig. 2 is the structural schematic diagram that the movable fishback of the utility model is overturn under foreign matter effect.

Fig. 3 is the side view of the utility model in normal state.

Fig. 4 is the side view that the movable fishback of the utility model is overturn under foreign matter effect.

Fig. 5 is the A partial enlarged view in Fig. 3.

Fig. 6 is the B partial enlarged view in Fig. 4.

Specific embodiment

The utility model is described in further detail combined with specific embodiments below.

As shown in Figures 1 to 6, automatic staircase comb plate safeguard construction provided by the present embodiment, including movable fishback 1, the leading-edge pedal 2 that is connected with the rear end of movable fishback 1, shaft 3, switch block 4, limit switch 5, reset spring 8 and Spring block 9, movable fishback 1 are fixedly arranged at the front end with a lobate comb structure of row's class, and the step pedal of itself and escalator The tooth socket of (being not drawn into figure) is meshed, and the rear end of movable fishback 1 is connect with the front end of leading-edge pedal 2 by shaft 3, and living The connecting end surface of the rear end of dynamic fishback 1 forms arcuate structure, and the connecting end surface of the front end of leading-edge pedal 2 is formed and movable comb teeth The groove structure that the arcuate structure of plate 1 is meshed often falls into various foreign matters on step pedal, when foreign matter is stuck in movable comb tooth When between plate 1 and step pedal, the front end of movable fishback 1 can be quickly flipped up and certain angle of facing upward, and improves whole A safeguard construction to the response sensitivity of abnormality, and movable fishback 1 in switching process the arcuate structure of its rear end with The surface of groove structure is bonded always, prevents other foreign matters from falling into the junction of its rear end；Leading-edge pedal 2 is equipped with screw hole 6, for fixing and guaranteeing itself and ground level, upper surface is formed with non-slip groove 7；Movable fishback shape at connection shaft 3 At there is mounting groove, switch block 4, limit switch 5 and reset spring 8 are mounted in the mounting groove, and switch block 4 and shaft 3 connect It connects, can be kept fixed during movable fishback is flipped up and not rotate, limit switch 5 is set to the upper of switch block 4 Side, and be located at the inside upper surface of mounting groove of movable fishback 1, and pass through conducting wire (being not drawn into figure) and escalator The safety return circuit of control escalator start and stop, the wiring of these conducting wires are formed into and out of emergency stop switch (being not drawn into the figure) series connection at end On movable 1 inside of fishback and the surface of entire safeguard construction, the regularity and safety of entire circuit wiring ensure that, Spring block 9 is set to the top on the arcuate structure of movable fishback 1 and being located at reset spring 8, the bottom of spring block 8 with The inside upper surface of mounting groove flushes, and is collectively formed one on the bottom of spring block 8 and the inside upper surface of mounting groove One end of circular groove identical with 8 diameter of reset spring, reset spring 8 is built in the outer of switch block 4 with semi-surrounding structure In the formed cylindrical void at the arc and lower end of groove structure, and it is inconsistent with the bottom of cylindrical void, and the other end supports Touch and extend into above-mentioned circular groove, movable fishback 1 compresses reset spring 8 when being flipped up, circular groove and Cylindrical void can limit the motion profile of reset spring 8, guarantee reset spring 8 in deformation without departing from normal work rail Mark, when foreign matter situation makes movable fishback 1 face upward certain angle, limit switch 5 is moved downward by the drive of movable fishback 1 And then switch block 4 is touched, the switch state of limit switch 5 changes, and the starting emergency stop switch of real-time, to pacify Full loop is disconnected, and escalator is out of service at once, and after escalator has been excluded failure, movable fishback 1 is resetting bullet Rapid reset under the action of 8 tension of spring, can rerun escalator.

The examples of implementation of the above are only the preferred embodiment of the utility model, not limit the utility model with this Practical range, therefore all shapes according to the utility model, change made by principle, it should all cover in the protection scope of the utility model It is interior.

Claims (4)

1. a kind of automatic staircase comb plate safeguard construction, it is characterised in that: the activity including being fixedly arranged at the front end with the lobate comb teeth of a row Fishback and leading-edge pedal, wherein the rear end of the activity fishback and the front end of leading-edge pedal are connected by shaft, and described The connecting end surface of movable fishback rear end forms arcuate structure, and the connecting end surface of the leading-edge pedal front end is formed and movable comb teeth The front end of the groove structure that the arcuate structure of plate is meshed, the activity fishback can be flipped up under foreign matter effect, be turned over Arcuate structure is bonded always with the surface of groove structure during turning, and can prevent other foreign matters from falling into junction, the activity Fishback is formed with mounting groove at connection shaft, and switch block, limit switch and reset spring are equipped in the mounting groove, The switch block is sector structure, and the center is connect with shaft, and can be during movable fishback is flipped up It is kept fixed, the limit switch is set to the top of switch block, and is located at the inside upper surface of mounting groove, the reset bullet One end of spring is built at the outer arc of switch block and in the formed cylindrical void in lower end of groove structure, and and cylindrical empty The bottom of gap is inconsistent, and the other end contacts at the inside upper surface of mounting groove, the urgency of the limit switch and escalator Guard's valve connects to form safety return circuit, drives it to move downward during movable fishback is flipped up and touches switch Block guarantees escalator in abnormal feelings to change the emergency stop switch of the starting escalator of its switch state and real-time It can be out of service rapidly under condition.

2. a kind of automatic staircase comb plate safeguard construction according to claim 1, it is characterised in that: the activity fishback Arcuate structure on and be located at reset spring top be equipped with spring block, the bottom of the spring block and the inside of mounting groove Upper surface flushes, and be collectively formed on the bottom of the spring block and the inside upper surface of mounting groove one it is straight with reset spring The identical circular groove of diameter, the end of the reset spring are extend into circular groove, are used for when foreign matter disappears, to reset bullet Motion profile when spring deformation is limited, and keeps movable fishback fast and accurately multiple under the action of reset spring tension Position.

3. a kind of automatic staircase comb plate safeguard construction according to claim 2, it is characterised in that: the spring block is Half taper type structure.

4. a kind of automatic staircase comb plate safeguard construction according to claim 1, it is characterised in that: on the leading-edge pedal Equipped with screw hole, for fixing and guaranteeing itself and ground level, upper surface is formed with non-slip groove.