CN215710979U - Door opening blocking device for elevator and elevator - Google Patents

Abstract

The utility model relates to a door opening blocking device for an elevator and the elevator, wherein the door opening blocking device comprises a linkage structure and a stop plate, the linkage structure and a side landing door of the elevator synchronously move, the linkage structure comprises a pull plate arranged at the back of the landing door of the elevator, a stop plate with one end hinged to the back of a door plate of the elevator and the other end being a free end, and a connecting piece for connecting the pull plate and the stop plate, when the connecting end of the pull plate and the connecting piece is displaced in the vertical direction, the connecting piece drives the stop plate to swing so that the stop plate and the stop plate are overlapped in the horizontal direction to limit the movement of the landing door of the elevator or the stop plate and the stop plate are mutually staggered in the horizontal direction to ensure that the landing door of the elevator can move. This scheme can open the back at elevator layer door through above-mentioned setting, increases one blocking device, under the condition that does not increase the operation degree of difficulty and operating procedure as far as possible, both for operator's safety provides one more guarantee, does not delay the valuable time of the stranded people rescue of elevator again, increases elevator maintenance personal's safety guarantee.

Description

Door opening blocking device for elevator and elevator

Technical Field

The utility model belongs to the field of auxiliary structures of elevator landing doors, and particularly relates to a door opening blocking device for an elevator and the elevator.

Background

With the rapid development of the economic society, the elevator becomes an essential part in daily life of people, and brings great convenience for people to go out. As special equipment, the elevator needs to be equipped with a corresponding number of maintenance personnel for daily maintenance and fault rescue, so that the danger brought by elevator maintenance and trapped rescue cannot be ignored.

Statistically, most elevator accidents occur in landing door areas, and therefore, as a landing door area where an elevator is most prone to accidents such as shearing and falling, the safety of the landing door area becomes a primary criterion for elevator component design. The landing door can be opened in two ways, one is that in a normal operation state, the car door drives the landing door to open from inside to outside; the other is an opening mode from outside to inside at a landing door through a triangular key when the elevator is checked, maintained or rescued. The triangular key is opened as an unconventional door opening mode, has more potential safety hazards, and in numerous accidents, two types are mainly typical: one is that after the door is opened by the triangular key, the elevator is not positioned in the landing door area, and the operator mistakenly thinks that the elevator is positioned in the landing door area, so that the elevator falls into the elevator shaft to cause an accident; another is to fall the hoistway after the landing door is opened due to instability of the body center of gravity caused by standing or improper force.

Therefore, aiming at the potential safety hazard existing in the existing mode of opening the landing door by using the triangular key, the development of the novel landing door opening safety protection device capable of effectively limiting the width of the triangular key for opening the door once is of great practical significance.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a door opening blocking device for an elevator and the elevator, wherein the door opening blocking device comprises a linkage structure arranged at the back of a side landing door of the elevator and a stop plate fixedly arranged at the upper end or the lower end of a corresponding door opening of an elevator shaft, the linkage structure and the side landing door of the elevator synchronously move, the linkage structure comprises a pull plate arranged at the back of the side landing door of the elevator, a stop plate with one end hinged to the back of an elevator door plate as a free end and a connecting piece connected with the pull plate and the stop plate, and when the connecting end of the pull plate and the connecting piece displaces in the vertical direction, the connecting piece drives the stop plate to swing so that the stop plate and the stop plate are overlapped in the horizontal direction to limit the movement of the elevator landing door or the stop plate and the stop plate are staggered in the horizontal direction to ensure that the elevator landing door can move. This scheme can open the back at elevator layer door through above-mentioned setting, increases one blocking device, under the condition that does not increase the operation degree of difficulty and operating procedure as far as possible, both for operator's safety provides one more guarantee, does not delay the valuable time of the stranded people rescue of elevator again, increases elevator maintenance personal's safety guarantee.

One of the purposes of the utility model is realized by adopting the following technical scheme:

a card hinders device that opens door for elevator, including setting up in the linkage structure at elevator one side layer door back and the fixed backstop board that sets up in elevator shaft corresponding door opening upper end or lower extreme, linkage structure and elevator one side layer door synchronous motion, linkage structure is including setting up in the arm-tie at elevator layer door back, one end articulate in the barrier plate that elevator door plant back one end is the free end and connect the connecting piece of arm-tie and barrier plate, the arm-tie with the link of connecting piece when the displacement takes place in vertical direction, the connecting piece drives the barrier plate swing makes the barrier plate with the backstop board overlaps in the horizontal direction in order to restrict elevator layer door's removal perhaps the barrier plate with the backstop board staggers each other in the horizontal direction in order to ensure that elevator layer door can remove.

Furthermore, the connecting piece is a rigid connecting rod, two ends of the connecting rod are respectively connected with the pulling plate and the blocking plate, and when the connecting end of the pulling plate and the connecting rod is displaced in the vertical direction, the connecting rod drives the blocking plate to swing.

Furthermore, the connecting piece is for connecting the rope, connect the both ends of rope respectively with arm-tie and barrier plate are connected, the arm-tie with when the link of connecting the rope takes place the displacement in vertical direction, it drives to connect the rope the barrier plate swing, the card hinders the device and still includes and is used for making the piece that resets that the barrier plate resets opens the door.

Further, the piece that resets is compression spring, compression spring one end with the free end of barrier plate is connected, and the other end is connected with elevator layer door, compression spring drives through the shrink elasticity of self the barrier plate resets.

Further, the piece that resets is torsion spring, torsion spring set up in the articulated department of baffle.

Furthermore, the pull plate is rotatably arranged at the back of the elevator landing door and synchronously rotates with the triangular lock head shaft, the pull plate is an L-shaped plate, the symmetrical points of the L-shaped plate are hinged joints, one end of the L-shaped plate is connected with the connecting piece, and when the L-shaped plate rotates, the connecting end of the L-shaped plate and the connecting piece is displaced in the vertical direction.

Furthermore, the stop plate is connected with the elevator landing door through a connecting bottom plate, the connecting bottom plate is provided with a first panel attached to the elevator landing door and a second panel perpendicular to the first panel, and the stop plate is hinged to the second panel.

Furthermore, the connecting bottom plate is provided with a limiting bulge for preventing the blocking plate from swinging excessively.

Further, when the elevator landing door is closed, the blocking plate and the stopping plate are spaced in the horizontal direction.

One of the purposes of the utility model is realized by adopting the following technical scheme:

elevator, including the door opening card hinders device for elevator as above.

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

the utility model discloses a door opening blocking device for an elevator and the elevator, wherein the door opening blocking device comprises a linkage structure arranged at the back of a side landing door of the elevator and a stop plate fixedly arranged at the upper end or the lower end of a corresponding door opening of an elevator shaft, the linkage structure and the side landing door of the elevator synchronously move, the linkage structure comprises a pull plate arranged at the back of the side landing door of the elevator, a stop plate with one end hinged to the back of a door plate of the elevator and the other end serving as a free end, and a connecting piece for connecting the pull plate and the stop plate, when the connecting end of the pull plate and the connecting piece is displaced in the vertical direction, the connecting piece drives the stop plate to swing so that the stop plate and the stop plate are overlapped in the horizontal direction to limit the movement of the elevator landing door or the stop plate and the stop plate are mutually staggered in the horizontal direction to ensure that the elevator landing door can move. This scheme can open the back at elevator layer door through above-mentioned setting, increases one blocking device, under the condition that does not increase the operation degree of difficulty and operating procedure as far as possible, both for operator's safety provides one more guarantee, does not delay the valuable time of the stranded people rescue of elevator again, increases elevator maintenance personal's safety guarantee.

Drawings

Fig. 1 is a schematic structural view of an actual installation of a door opening blocking device for an elevator of the present invention;

fig. 2 is a schematic structural view of a preferred embodiment of the door opening blocking device for the elevator of the utility model;

fig. 3 is a schematic structural view of the door opening blocking device for the elevator in a blocking state;

fig. 4 is a schematic structural view of the open state of the door opening blocking device for the elevator of the present invention.

In the figure: 100. a door opening blocking device for an elevator; 1. pulling a plate; 2. a blocking plate; 3. a connecting member; 4. a stopper plate; 5. a reset member; 6. connecting the bottom plate; 7. a limiting bulge; 8. an elevator landing door.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

As shown in fig. 1-4, the door opening blocking device 100 for an elevator comprises a linkage structure arranged at the back of a side landing door of the elevator and a stop plate 4 fixedly arranged at the upper end or the lower end of a corresponding door opening of an elevator shaft, wherein the linkage structure moves synchronously with the side landing door of the elevator, the linkage structure comprises a pull plate 1 arranged at the back of an elevator landing door 8, a stop plate 2 with one end hinged to the back of an elevator door panel and the other end being a free end, and a connecting member 3 connecting the pull plate 1 and the stop plate 2, when the connecting end of the pull plate 1 and the connecting member 3 displaces in the vertical direction, the connecting member 3 drives the stop plate 2 to swing so that the stop plate 2 and the stop plate 4 are overlapped in the horizontal direction to limit the movement of the elevator landing door 8, or the stop plate 2 and the stop plate 4 are staggered in the horizontal direction to ensure that the elevator landing door 8 can move. This scheme can open the back at elevator layer door 8 through above-mentioned setting, increases one blocking device, under the condition that does not increase the operation degree of difficulty and operating procedure as far as possible, both for operator's safety provides one more multiple guarantee, does not delay the valuable time of the stranded people rescue of elevator again, increases elevator maintenance personal's safety guarantee.

Because in traditional rescue mode, after the elevator landing door 8 is opened through the triangle key to the rescue personnel, often neglect to observe the condition in the elevator well because of being in a hurry to rescue trapped personnel, when the elevator is not located the landing door region, the rescue personnel can take place the accident directly into the well. This opening door that adds this scheme hinders device is another layer door slip restriction, after elevator layer door 8 is opened through the triangle key to the rescue personnel, can open some gaps (the width in this gap is that there is the interval on barrier plate 2 and the 4 horizontal directions of backstop board promptly) with layer door this moment, and preferred in this embodiment is at 15-20cm with this scope restriction, and this part gap can supply the rescue personnel to observe the situation in the well, but rescue personnel's health can't get into, avoids appearing the accident that rescue personnel took place to fall into the elevator well in observation process. When observing that accord with the rescue environment in the elevator well, open the card that opens the door and hinder the device this moment again, elevator layer door 8 can only continue to slide until opening completely, and the rescue personnel can get into in the elevator. The rescue step can be divided into two steps through the door opening blocking device, the first step is the same as the door opening process of a traditional triangular key, a landing door is opened after the door is opened, the condition in a well is observed, and the door opening blocking device is opened again in the second step after the safety is confirmed. The safety guarantee is added, and the accident that the elevator directly falls into the well is avoided.

The blocking device that opens door in this scheme mainly utilizes 2 rotations of barrier plate and overlaps with backstop board 4 and form the separation and restrict elevator layer door 8 gliding, and wherein the mode of realizing this kind of effect has the multiple, at first is about the position that sets up of backstop board 4, can set up and correspond door opening upper end or lower extreme at the elevartor shaft, and what correspond, barrier plate 2 sets up the position and also corresponds backstop board 4 positions and change the regulation. In the following description, the stopper plate 4 is disposed at the upper end of the corresponding door opening of the elevator shaft.

Meanwhile, the implementation modes of driving the hinged stop plate 2 to swing in the scheme are also various, and the following provides several realizable modes:

the first embodiment is as follows: the connecting piece 3 is a rigid connecting rod (not shown in the figure), two ends of the connecting rod are respectively connected with the pulling plate 1 and the blocking plate 2, and when the connecting end of the connecting rod moves in the vertical direction, the connecting rod drives the blocking plate 2 to swing. In the first embodiment, the rigid rod is directly adopted as the connecting piece 3 through the arrangement, and the baffle plate 2 can be synchronously driven to swing when the connecting end of the pulling plate 1 and the connecting rod moves. Meanwhile, when the pulling plate 1 is reset to the initial position, the blocking plate 2 can be synchronously reset.

Example two: connecting piece 3 is for connecting the rope, the both ends of connecting the rope respectively with arm-tie 1 and barrier plate 2 are connected, arm-tie 1 with when the link of connecting the rope takes place the displacement in vertical direction, it drives to connect the rope barrier plate 2 swings. In the second embodiment, the connecting rope is adopted as the connecting member 3, and at the moment, the pulling plate 1 can pull the blocking plate 2 to pull in one direction through the connecting rope, but the connecting rope is a flexible rope, and the blocking plate 2 cannot be reset to the initial state under the action of gravity of the blocking plate 2 after moving, so that the resetting member 5 for resetting the blocking plate 2 is also required to be configured in the second embodiment.

The function of the reset piece 5 is to reset the pulling plate 1 to the initial state against the action of gravity, and there are various parts for realizing the function, and two realizable modes are also provided as follows, wherein one mode is as follows: reset 5 and be torsion spring, torsion spring set up in the articulated department of barrier plate 2, through torsion spring's setting, when connecting the rope and no longer driving barrier plate 2 motion, torsion spring's self elastic action can drive barrier plate 2 and reset to initial condition again.

The other is as follows: the reset piece 5 is a compression spring, one end of the compression spring is connected with the free end of the barrier plate 2, the other end of the compression spring is connected with the elevator landing door 8, and the compression spring drives the barrier plate 2 to reset through self contraction elastic force. Through the setting of compression spring, when connecting the rope and no longer driving barrier plate 2 and moving, compression spring's self shrink elasticity effect can drive barrier plate 2 and reset to initial condition again.

Preferably, the blocking plate 2 is connected with the elevator landing door 8 through a connecting bottom plate 6, the connecting bottom plate 6 is provided with a first panel attached to the elevator landing door 8 and a second panel perpendicular to the first panel, and the blocking plate 2 is hinged to the second panel. The design can be that baffle 2 is the state of being perpendicular to elevator layer door 8, and the backstop board 4 that is also perpendicular to the elevator well can better overlap and then realize limiting displacement.

Preferably, a limiting protrusion 7 for preventing the blocking plate 2 from excessively swinging is further provided on the connecting bottom plate 6. Spacing arch 7 sets up the lower extreme at barrier plate 2, and barrier plate 2's free end can be because of contacting spacing arch 7 and can't continue the downward swing when rotating round the pin joint, prevents that barrier plate 2 from swinging excessively and can't reset.

In the scheme, the pull plate 1 is rotatably arranged at the back of the elevator landing door 8 and synchronously rotates with the triangular lock head shaft, and the pull plate 1 can rotate around a hinge point to realize displacement in the vertical direction with the connecting end of the connecting piece 3. At the same time, the stop plate 2 is limited to be horizontally staggered with the stop plate 4 in a normal state so as to ensure that the elevator landing door 8 can move, and under the action of the pull plate 1, the stop plate 2 swings to be horizontally overlapped with the stop plate 4 so as to limit the movement of the elevator landing door 8. Under this kind of design, after elevator layer door 8 is opened through the triangle key when the first step of rescue is being implemented to the rescue personnel, elevator layer door 8 is opened this moment, but 2 and 4 overlap on the horizontal direction of barrier plate, elevator layer door 8 only can push away a gap to both sides, just can be because of barrier plate 2 and 4 looks butt of backstop plate can't continue to slide, only rescue personnel confirm safe back in observing the elevator well, the triangle key that reverses once more makes barrier plate 2 reset to initial position, barrier plate 2 and backstop plate 4 are staggered mutually and can open elevator layer door 8 completely.

Preferably, arm-tie 1 is the L template, the symmetry point of L template is the pin joint, L template one end with connecting piece 3 is connected, and under the conventional condition, the one end that the L template is connected with connecting piece 3 is the horizontality, later when the L template rotates, the L template with the link of connecting piece 3 rotates downwards and is vertical state, pulls 2 downswings of baffle and in the horizontal direction through connecting piece 3 simultaneously with backstop board 4 overlaps in order to block elevator layer door 8 and removes.

The embodiment also provides an elevator, which comprises the door opening blocking device. Compared with the traditional emergency door opening device, the emergency door opening device has the following advantages: firstly, the effect of limiting the door opening is achieved through the blocking device, and the accident that the door falls into the well after being opened is avoided in design; secondly, based on market demands, by adding a blocking device, under the condition that the operation difficulty and operation steps are not increased as much as possible, one more guarantee is provided for the safety of an operator, and the precious time for rescuing people trapped in the elevator is not delayed; thirdly, the utility model has the characteristics of simple structure, reliable work, convenient maintenance and convenient installation, and has good development prospect; fourthly, the design method of the middle pull rope or the middle pull rod is adopted, the problem of mismatching caused by different sizes of door opening devices of various types is avoided, the length and the angle of the door opening device are flexible and variable, and the device has wide applicability; fifthly, the reset piece 5 is arranged, so that the automatic reset can be ensured after unlocking, the meshing depth of the landing door lock hook is ensured, and the hidden danger that the unlocking device cannot automatically reset is solved; sixthly, the door opening limiting device also provides design reference for the design of the anti-theft door device of the car door.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (10)

1. A block device opens door for elevator which characterized in that: the elevator door comprises a linkage structure arranged at the back of an elevator side-layer door and a stop plate fixedly arranged at the upper end or the lower end of a corresponding door opening of an elevator shaft, wherein the linkage structure and the elevator side-layer door synchronously move, the linkage structure comprises a pull plate arranged at the back of the elevator side-layer door, a stop plate with one end hinged to one end of the back of the elevator door as a free end and a connecting piece connected with the pull plate and the stop plate, the pull plate and the connecting piece are connected, when the connecting end of the connecting piece is displaced in the vertical direction, the connecting piece drives the stop plate to swing so that the stop plate and the stop plate are overlapped in the horizontal direction to limit the movement of the elevator side-layer door or the stop plate and the stop plate are staggered in the horizontal direction to ensure that the elevator side-layer door can move.

2. The door opening blocking device for an elevator according to claim 1, wherein: the connecting piece is a rigid connecting rod, two ends of the connecting rod are respectively connected with the pulling plate and the blocking plate, and when the connecting end of the pulling plate and the connecting rod displaces in the vertical direction, the connecting rod drives the blocking plate to swing.

3. The door opening blocking device for an elevator according to claim 1, wherein: the connecting piece is for connecting the rope, connect the both ends of rope respectively with arm-tie and barrier plate are connected, the arm-tie with the link of connecting the rope is when vertical direction takes place the displacement, it drives to connect the rope the barrier plate swing, the card hinders the device and still including being used for making the piece that resets that the barrier plate resets opens the door.

4. The door opening blocking device for an elevator according to claim 3, wherein: the reset piece is a compression spring, one end of the compression spring is connected with the free end of the blocking plate, the other end of the compression spring is connected with the elevator landing door, and the compression spring drives the blocking plate to reset through the self contraction elastic force.

5. The door opening blocking device for an elevator according to claim 3, wherein: the piece that resets is torsion spring, torsion spring set up in the articulated department of barrier plate.

6. The door opening blocking device for an elevator according to claim 1, wherein: the pull plate is rotatably arranged at the back of the elevator landing door and synchronously rotates with the triangular lock head shaft, the pull plate is an L-shaped plate, the symmetrical points of the L-shaped plate are hinged joints, one end of the L-shaped plate is connected with the connecting piece, and when the L-shaped plate rotates, the L-shaped plate and the connecting end of the connecting piece displace in the vertical direction.

7. The door opening blocking device for an elevator according to claim 1, wherein: the barrier plate is connected with the elevator landing door through a connecting bottom plate, the connecting bottom plate is provided with a first panel attached to the elevator landing door and a second panel perpendicular to the first panel, and the barrier plate is hinged to the second panel.

8. The door opening blocking device for an elevator according to claim 7, wherein: the connecting bottom plate is provided with a limiting bulge for preventing the blocking plate from swinging excessively.

9. The door opening blocking device for an elevator according to claim 1, wherein: when the elevator landing door is closed, the blocking plate and the stopping plate are spaced in the horizontal direction.

10. An elevator, characterized in that: comprising a door opening catch arrangement for an elevator according to any of claims 1-9.

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