CN217024949U - Anti-pinch device of elevator door - Google Patents

Abstract

The utility model is suitable for the technical field of elevator protection, and provides an anti-pinch device for an elevator door, which comprises a pair of car doors arranged in parallel, an induction mechanism and a limiting mechanism, wherein when the two car doors are normally closed, a telescopic rod on a shell can be normally inserted into a groove on the other car door, when an object is blocked between the two car doors, the object pushes the telescopic rod to move towards the inside of the shell, a conductive block arranged at the end part of the telescopic rod is contacted with a conductive plate to control the car doors to move towards opposite directions, so that the anti-pinch effect of the elevator door is realized, in addition, the arrangement of the limiting mechanism is convenient for dismounting the induction mechanism, so that the later-stage maintenance of the induction mechanism by workers is facilitated, the practicability of the device is further improved.

Description

Anti-pinch device of elevator door

Technical Field

The utility model relates to the technical field of elevator protection, in particular to an anti-pinch device of an elevator door.

Background

The elevator safety protection system generally comprises a mechanical safety protection device and an electrical safety protection device, wherein the mechanical safety protection device mainly comprises a speed limiter, a safety tongs, a buffer, a brake, a landing door lock and car door electrical interlocking device, a door safety protection device, a car roof safety window, a car roof protection railing, a foot protection plate and the like; the electrical safety protection includes direct electric shock protection, indirect electric shock protection, electrical fault protection, electrical safety devices and the like, wherein some mechanical safety devices usually need electrical matching and interlocking devices to complete the action and the reliable effect.

When the existing elevator operates, the phenomenon of hand clamping is mainly prevented through the sensor, however, the sensor has a certain blind area, and the defect of poor prevention effect exists in a mode of only adopting the sensor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-pinch device of an elevator door, which is used for solving the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a tong device is prevented to lift-cabin door, the device is including a pair of sedan-chair door that sets up side by side, still includes response mechanism and stop gear, response mechanism includes casing, current conducting plate, conducting block, first spring and telescopic link, one of them the mounting groove has been seted up on the lateral wall of sedan-chair door, and the lateral wall of another sedan-chair door corresponds the mounting groove position and sets up flutedly, the casing is pegged graft in the mounting groove and is fixed through stop gear, and the casing internal fixation is provided with the current conducting plate, and the side of casing is from last to equidistant a plurality of through-holes of having seted up down, the telescopic link is through first spring elasticity slidable mounting in the through-hole, and the end fixing that the telescopic link is located the casing is provided with the conducting block.

As a further scheme of the utility model: the telescopic link is worn to establish still to the tip outside the casing and is provided with the rubber ball.

As a further scheme of the utility model: stop gear sets up the spacing unit of both sides about the casing including the symmetry, and spacing unit includes gag lever post, support piece, movable rod, drive gear and second spring, gag lever post movable mounting is on the terminal surface of casing, set up on the inner wall of mounting groove and peg graft complex spacing groove with the gag lever post, support piece fixed mounting is in the casing, and the side of casing corresponds the support piece position and has seted up the side opening, the movable rod passes through second spring elasticity slidable mounting on support piece, and with the gag lever post sets up perpendicularly, and the movable rod is located the tip of side opening and still fixes and be provided with the button, drive gear rotates and sets up in the casing, gag lever post and movable rod side all are provided with the teeth of a cogwheel with drive gear meshing.

As a further scheme of the utility model: the limiting unit further comprises a guide module, the guide module comprises a guide rod fixedly arranged in the shell and a sleeve movably arranged on the guide rod, and the sleeve is fixedly connected with the limiting rod.

As a further scheme of the utility model: the end part of the limiting rod penetrating to the outside of the shell is provided with a wedge-shaped groove.

As a further scheme of the utility model: the device still pops out the subassembly, pop out the subassembly including fixed a plurality of third springs that set up in the casing side, the end fixing of third spring is provided with the ejection plate.

Compared with the prior art, the utility model has the beneficial effects that:

according to the elevator door anti-pinch device, the induction mechanism is arranged, when two car doors are normally closed, the telescopic rod on the shell can be normally inserted into the groove on the other car door, when an object is blocked between the two car doors, the object pushes the telescopic rod to move into the shell, the conductive block arranged at the end part of the telescopic rod is contacted with the conductive plate, the car doors are controlled to move in opposite directions, and therefore the elevator door anti-pinch effect is achieved.

Drawings

Fig. 1 is a schematic view of the whole structure of an elevator door anti-pinch device;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 2;

in the figure: 1-car door, 2-mounting groove, 3-shell, 4-conductive plate, 5-conductive block, 6-first spring, 7-telescopic rod, 8-rubber ball, 9-limiting rod, 10-support, 11-movable rod, 12-transmission gear, 13-second spring, 14-limiting groove, 15-button, 16-gear tooth, 17-third spring, 18-ejection plate, 19-groove, 20-guide rod and 21-sleeve.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

Referring to fig. 1-3, a hand clamping prevention device for elevator doors comprises a pair of car doors 1 arranged in parallel, and further comprises an induction mechanism and a limiting mechanism, wherein the induction mechanism comprises a housing 3, a conductive plate 4, a conductive block 5, a first spring 6 and a telescopic rod 7, one of the car doors 1 is provided with a mounting groove 2 on the side wall, the other car door 1 is provided with a groove 19 on the side wall corresponding to the mounting groove 2, the housing 3 is inserted into the mounting groove 2 and fixed by the limiting mechanism, the conductive plate 4 is fixedly arranged in the housing 3, a plurality of through holes are arranged on the side surface of the housing 3 at equal intervals from top to bottom, the telescopic rod 7 is elastically and slidably arranged in the through holes through the first spring 6, the conductive block 5 is fixedly arranged at the end part of the telescopic rod 7 in the housing 3, and by arranging the induction mechanism, when the two car doors 1 are normally closed, the telescopic link 7 on the casing 3 can normally be pegged graft in the recess 19 on another sedan-chair door 1, when having the article to block between two sedan-chair doors 1, the article promotes telescopic link 7 to casing 3 internal motion, the conducting block 5 and the current conducting plate 4 contact that the 7 tip of telescopic link set up, control sedan-chair door 1 moves to opposite direction, with this effect of realizing that the lift-cabin door prevents pressing from both sides the hand, and, the setting of a plurality of telescopic links 7, the sensor that sets up on the cooperation traditional lift-cabin door, the effect of preventing pressing from both sides the hand of lift-cabin door has been improved greatly, furthermore, stop gear's setting, conveniently carry out the dismouting to induction mechanism, thereby make things convenient for staff's later stage to the maintenance of induction mechanism, the device's practicality has further been improved.

In addition, telescopic link 7 wears to establish still to the outer tip of casing 3 and is provided with rubber ball 8, through setting up rubber ball 8, has increased the area of contact of telescopic link 7 with the hand, effectively avoids causing direct injury to the hand of cliping.

Example 2

The embodiment details the limiting mechanism on the basis of the embodiment 1, and specifically includes:

the limiting mechanism comprises limiting units symmetrically arranged on the upper side and the lower side of the shell 3, each limiting unit comprises a limiting rod 9, a supporting piece 10, a movable rod 11, a transmission gear 12 and a second spring 13, the limiting rod 9 is movably arranged on the end face of the shell 3, a limiting groove 14 matched with the limiting rod 9 in a splicing mode is formed in the inner wall of the mounting groove 2, the supporting piece 10 is fixedly arranged in the shell 3, a side hole is formed in the side face of the shell 3 corresponding to the position of the supporting piece 10, the movable rod 11 is elastically and slidably arranged on the supporting piece 10 through the second spring 13 and is vertically arranged with the limiting rod 9, a button 15 is fixedly arranged at the end part of the movable rod 11 in the side hole, the transmission gear 12 is rotatably arranged in the shell 3, gear teeth 16 meshed with the transmission gear 12 are arranged on the side faces of the limiting rod 9 and the movable rod 11, and when the sensing mechanism is required to be detached, only two buttons 15 about the casing 3 side need be pressed, and button 15 drives movable rod 11 and moves to casing 3 in, through the transmission of teeth of a cogwheel 16 and drive gear 12 for gag lever post 9 contracts to casing 3 in, when gag lever post 9 breaks away from spacing groove 14, can take out casing 3 from mounting groove 2 smoothly.

Wherein, spacing unit still includes the guide module, the guide module is including fixed setting up guide bar 20 and movable mounting sleeve 21 on guide bar 20 in casing 3, sleeve 21 with gag lever post 9 fixed connection, the concrete setting aim at of guide module leads for the motion of gag lever post 9, makes gag lever post 9 reciprocating motion more smooth and easy.

In addition, gag lever post 9 wears to establish the tip outside casing 3 and is provided with the groove of wedge form, through setting up like this, when installing induction mechanism, only need aim at mounting groove 2 with casing 3 to promote casing 3 to the interior motion of mounting groove 2, because the setting of groove, casing 3 can insert smoothly and establish into mounting groove 2 in, and, gag lever post 9 can insert automatically and establish into spacing inslot 14, realize the fixed to casing 3, need not to press button 15 in addition, installation steps have been reduced, further improved induction mechanism's installation effectiveness.

Further, the device is still including popping out the subassembly, pop out the subassembly including fixed a plurality of third springs 17 that set up in casing 3 side, the end fixing of third spring 17 is provided with and pops out board 18, pops out the subassembly through the setting, when pressing button 15 and dismantling response mechanism, gag lever post 9 breaks away from the moment of spacing groove 14, and casing 3 pops out the certain distance to mounting groove 2 outward under third spring 17's effect, and when loosening button 15, gag lever post 9 can not insert again and establish in the spacing groove 14, has further improved the dismantlement efficiency to response mechanism.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. An anti-pinch device of an elevator door comprises a pair of car doors (1) which are arranged in parallel, it is characterized by also comprising an induction mechanism and a limiting mechanism, wherein the induction mechanism comprises a shell (3), a conductive plate (4), a conductive block (5), a first spring (6) and a telescopic rod (7), wherein the side wall of one car door (1) is provided with a mounting groove (2), the side wall of the other car door (1) is provided with a groove (19) corresponding to the mounting groove (2), the shell (3) is inserted into the mounting groove (2) and fixed by a limiting mechanism, the shell (3) is internally and fixedly provided with a conductive plate (4), the side surface of the shell (3) is provided with a plurality of through holes at equal intervals from top to bottom, the telescopic rod (7) is elastically and slidably arranged in the through hole through a first spring (6), and the end part of the telescopic rod (7) positioned in the shell (3) is fixedly provided with a conductive block (5).

2. The anti-pinch device for elevator doors according to claim 1, wherein the end of the telescopic rod (7) penetrating the housing (3) is further provided with a rubber ball (8).

3. The anti-pinch device for elevator doors according to claim 1, wherein the limiting mechanism comprises limiting units symmetrically arranged on the upper and lower sides of the housing (3), the limiting units comprise a limiting rod (9), a supporting member (10), a movable rod (11), a transmission gear (12) and a second spring (13), the limiting rod (9) is movably mounted on the end surface of the housing (3), a limiting groove (14) in plug-in fit with the limiting rod (9) is formed on the inner wall of the mounting groove (2), the supporting member (10) is fixedly mounted in the housing (3), a side hole is formed on the side surface of the housing (3) corresponding to the position of the supporting member (10), the movable rod (11) is elastically and slidably mounted on the supporting member (10) through the second spring (13) and is arranged perpendicular to the limiting rod (9), and a button (15) is fixedly arranged at the end of the movable rod (11) in the side hole, the transmission gear (12) is rotatably arranged in the shell (3), and gear teeth (16) meshed with the transmission gear (12) are arranged on the side surfaces of the limiting rod (9) and the movable rod (11).

4. The anti-pinch device for elevator doors according to claim 3, wherein the limiting unit further comprises a guide module, the guide module comprises a guide rod (20) fixedly arranged in the housing (3) and a sleeve (21) movably arranged on the guide rod (20), and the sleeve (21) is fixedly connected with the limiting rod (9).

5. The anti-pinch device for the elevator door as claimed in claim 3, wherein the end of the limiting rod (9) penetrating to the outside of the shell (3) is provided with a wedge-shaped groove.

6. The elevator door anti-pinch device according to claim 1, further comprising a pop-up assembly including a plurality of third springs (17) fixedly disposed at a side of the housing (3), wherein an end of the third springs (17) is fixedly disposed with a pop-up plate (18).

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