CN115724311A - Foreign matter detection device for elevator door, elevator door and elevator system - Google Patents

Abstract

The invention provides a foreign matter detection device for an elevator door, an elevator door and an elevator system. The lift-cabin door includes the door body of two adjacent settings, and foreign matter detection device includes: the elevator door comprises an elevator door body, a detection piece and a control unit, wherein the elevator door body comprises a first door body and a second door body, the detection piece is provided with a first position and a second position and can be switched between the first position and the second position, in the first position, the detection piece is positioned at one end, close to the other door body, of one door body, and the first end extends towards the top of the elevator door; in the second position, the detection piece is positioned at one end of one door body close to the other door body, and the first end extends towards the bottom of the elevator door; and the driving piece is connected with the second end so as to drive the detection piece to rotate and switch between the first position and the second position by taking the second end as a circle center. The foreign matter detection device is compact in structure and high in safety.

Description

Foreign matter detection device for elevator door, elevator door and elevator system

Technical Field

The present invention relates to the field of elevator technology, and more particularly, to a foreign matter detection device for an elevator door, and an elevator system.

Background

In the technical field of elevators, in the closing process of elevator doors, a mechanical safety touch panel, a light curtain and other protection devices are mainly used for detecting whether passengers enter or exit or barriers exist in the closing process of the elevator doors, and once the passengers or the barriers are found, a signal is sent to reopen the elevator doors so as to ensure the safety of the passengers taking the elevator. The existing scheme mainly has the following problems: mechanical safety touch panels, light curtains and other protective devices have blind areas, for example, the devices cannot cover all ranges in the height direction of the elevator door, and small-sized obstacles cannot be detected.

In certain situations, such as when a passenger is connected to an associated ladder with an object (person) via a connection (e.g., a rope), for example, an adult may hold a child with a "safety rope for preventing wandering away" to ride the ladder, or a child may hold a balloon with a rope to ride the ladder, or a passenger may hold an animal with a "dog leash" to ride the ladder, etc. When the passengers and the associated elevator-taking objects (people) are respectively positioned in the elevator car and outside the elevator car, the mechanical safety touch panel, the light curtain and other protection devices cannot completely identify the risks in the closing process of the elevator door, and related accident cases also occur occasionally.

Disclosure of Invention

In order to solve the above problems in the prior art, embodiments of the present invention provide a foreign object detection device for an elevator door, and an elevator system, which have a compact structure and high safety.

One aspect of the present invention provides a foreign matter detection apparatus for an elevator door including two door bodies adjacently disposed, the foreign matter detection apparatus including: the elevator door comprises an elevator door body, a detection piece and a control unit, wherein the elevator door body comprises a first door body and a second door body, the detection piece is provided with a first position and a second position and can be switched between the first position and the second position, in the first position, the detection piece is positioned at one end, close to the other door body, of one door body, and the first end extends towards the top of the elevator door; in the second position, the detection piece is positioned at one end of one door body close to the other door body, and the first end extends towards the bottom of the elevator door; and the driving piece is connected with the second end so as to drive the detection piece to rotate and switch between the first position and the second position by taking the second end as a circle center.

Wherein, two door bodies are closed back, the driving piece drive the detection piece begins to rotate from the initial position, the detection piece is through the closing line of two door bodies, when accompany the foreign matter between two door bodies, the detection piece is hindered by the foreign matter, driving piece discernment hinders signal and drive the detection piece is towards the rotation in opposite direction of current direction of rotation, until the detection piece returns the initial position, the detection piece returns behind the initial position, two door bodies are opened.

According to the foreign matter detection device for the elevator door, the detection piece is arranged at one end, close to the other door body, of one door body, and the detection piece rotates and switches between the first position and the second position by taking the second end as a circle center, so that whether foreign matter is blocked between the two doors or not can be detected in the rotation process of the detection piece. The foreign matter detection device is compact in structure, and compared with protection devices such as a mechanical safety touch panel and a light curtain in the prior art, the foreign matter detection device can solve the problem of detection blind zones, further avoid the occurrence of elevator taking accidents in certain scenes, and further guarantee the safety of passengers taking the elevator to the maximum extent.

In some embodiments, when the detecting member is switched between the first position and the second position, the detecting member rotates 180 ° around the second end.

In some embodiments, the driving member includes a motor and a sensor, the sensor is connected to the motor in a communication manner, the sensor recognizes the blocking signal and transmits the blocking signal to the motor, and the motor drives the detecting member to rotate in a direction opposite to the current rotation direction until the detecting member returns to the initial position.

In some embodiments, the sensor is a force value sensor, the force value sensor detects a resistance value of the foreign matter to the detecting member, when the resistance value is greater than or equal to a force value threshold value, the force value sensor generates a resistance signal and transmits the resistance signal to the motor, and the motor drives the detecting member to rotate in a direction opposite to a current rotation direction until the detecting member returns to the initial position.

In some embodiments, the length of the detection member is greater than or equal to one half of the height of the doorway where the elevator door is located, and the driving member is disposed at the elevator door and located at one half of the height of the doorway where the elevator door is located.

In some embodiments, the foreign matter detecting apparatus for an elevator door further includes: the sliding rail is arranged on one door body provided with the detection piece and is positioned at one end, far away from the other door body, of the detection piece; and one end of the connecting rod can be pivotally connected with the detection piece, and the other end of the connecting rod can be slidably arranged on the sliding rail.

In some embodiments, the device for detecting a foreign object in an elevator door further includes a slider connected to the other end of the link, and the slider is slidably disposed on the slide rail.

In some embodiments, the foreign object detection device for an elevator door further includes a contactor, the contactor includes a male end and a female end, one of the male end and the female end is disposed on the slider, and the other is disposed at an end portion of the sliding rail extending direction far away from the other door body, the male end and the female end are connected in series in a safety loop of the elevator system, wherein in the first position and the second position, the male end and the female end are in contact fit, and the safety loop is conducted.

In some embodiments, the device for detecting foreign matters in an elevator door further comprises a time controller, the time controller is in communication connection with the contactor, the time controller is in communication connection with the driving member, after the two door bodies are closed, the driving member drives the detection member to rotate from an initial position to an end position, the time controller identifies separation duration signals of the male end and the female end during the rotation of the detection member from the initial position to the end position, and the driving member drives the detection member to rotate according to the separation duration signals.

In some embodiments, the time controller identifies and records a separation duration of the male end and the female end during the rotation of the detecting member from the initial position to the final position, compares the separation duration with a time threshold, and when the separation duration is greater than or equal to the time threshold, the driving member drives the detecting member to rotate in a direction opposite to the current rotation direction until the detecting member returns to the initial position, and after the detecting member returns to the initial position, the two door bodies are opened.

Another aspect of the present invention provides an elevator door including the foreign matter detection device for an elevator door as described above; and the foreign matter detection device is arranged on one door body.

Another aspect of the invention provides an elevator system comprising an elevator door according to the above.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of an elevator door according to an embodiment of the present invention;

fig. 2 is a schematic view of another angled elevator door according to an embodiment of the present invention;

fig. 3 is a schematic view of a foreign object detection apparatus according to an embodiment of the present invention.

Reference numerals are as follows:

an elevator door 1000, a door body 200, a closing line 201,

the foreign substance detection apparatus 100 is provided with,

the detecting member 1, the first end 11, the second end 12,

a driving piece 2, a slide rail 3, a connecting rod 4, a slide block 5,

the contact 6, the male end 61, the female end 62,

a first position F1 and a second position F2.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention. In addition, the various embodiments of the present invention provided below and the technical features in the embodiments may be combined with each other in an arbitrary manner.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Furthermore, the terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components. All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

A foreign matter detection device 100 for an elevator door 1000, and an elevator system according to an embodiment of the present invention are described below with reference to fig. 1 to 3.

As shown in fig. 1 to 3, according to the foreign matter detection apparatus 100 for an elevator door 1000 according to an embodiment of the present invention, the elevator door 1000 includes two door bodies 200 adjacently disposed, and the foreign matter detection apparatus 100 includes a detection member 1 and a driving member 2.

Specifically, with reference to fig. 1 to 3, the detecting member 1 includes a first end 11 and a second end 12, the detecting member 1 has a first position F1 and a second position F2, and is switchable between the first position F1 and the second position F2, wherein in the first position F1, the detecting member 1 is located at one end of one of the door bodies 200 close to the other door body 200, and the first end 11 extends toward the top of the elevator door 1000; in the second position F2, the detecting element 1 is located at one end of one of the door bodies 200 close to the other door body 200, and the first end 11 extends toward the bottom of the elevator door 1000; the driving member 2 is connected to the second end 12 to drive the detecting member 1 to rotate and switch between the first position F1 and the second position F2 around the second end 12.

After the two door bodies 200 are closed, the driving part 2 drives the detection part 1 to rotate from the initial position, the detection part 1 passes through the closing line 201 of the two door bodies 200, when a foreign body is clamped between the two door bodies 200, the detection part 1 is blocked by the foreign body, the driving part 2 identifies a blocking signal and drives the detection part 1 to rotate in the opposite direction of the current rotation direction until the detection part 1 returns to the initial position, and after the detection part 1 returns to the initial position, the two door bodies 200 are opened.

It can be understood that when the passenger uses the elevator, the passenger may fall behind the elevator car to carry articles or pets, which may cause a part of the articles, articles accessories (such as packing ropes) or pet hauling ropes to be clamped between the two door bodies 200 when the elevator door 1000 is closed. If a foreign object is clamped between the two door bodies 200, the movement of the elevator car may cause danger, and therefore, after the two door bodies 200 are closed, it is necessary to detect whether the foreign object is between the two door bodies 200 before the elevator car moves.

Specifically, after the two door bodies 200 are closed, the driving member 2 may drive the detecting member 1 to rotate from an initial position, where the initial position may be a first position F1, and the initial position may also be a second position F2. When a passenger enters the elevator car and the two door bodies 200 are closed, if the detection piece 1 is located at the first position F1, the initial position is the first position F1; if the detecting member 1 is located at the second position F2, the initial position is the second position F2. The detection piece 1 starts to rotate from the initial position and can pass through the closing line 201 of the two door bodies 200, wherein the closing line 201 of the two door bodies 200 can be understood as an edge line which is contacted by the two door bodies 200 after the two door bodies 200 are closed.

When a foreign object is sandwiched between the two door bodies 200, the detection member 1 is obstructed by the foreign object when passing through the closing line 201 of the two door bodies 200. At this time, the driving part 2 can recognize the blocking signal and drive the detecting part 1 to rotate in the opposite direction of the current rotating direction until the detecting part 1 returns to the initial position, and after the detecting part 1 returns to the initial position, the two door bodies 200 can be opened, so that the passenger can remove the foreign matters between the two door bodies 200.

When there is no foreign matter between the two door bodies 200, the detection piece 1 is not obstructed by the foreign matter when passing through the closing line 201 of the two door bodies 200. At this time, the driving member 2 drives the detecting member 1 to rotate from the initial position to the end position, where the end position is the second position F2 when the initial position is the first position F1; when the initial position is the second position F2, the end position is the first position F1. When the detection piece 1 successfully reaches the end position, the elevator car can be started.

In the first position F1, the detecting member 1 is located at one end of one of the door bodies 200 close to the other door body 200, and the first end 11 extends toward the top of the elevator door 1000; in the second position F2, the detecting member 1 is located at one end of one of the door bodies 200 close to the other door body 200, and the first end 11 extends toward the bottom of the elevator door 1000. Therefore, the rotation of the detecting member 1 from the first position F1 to the second position F2, the rotation of the detecting member 1 from the second position F2 to the first position F1, and the passing of the closing line 201 of the two door bodies 200 during the rotation of the detecting member 1 from the first position F1 to the second position F2 or the rotation of the detecting member 1 from the second position F2 to the first position F1 can be facilitated.

In the related art, when the elevator door is closed, a mechanical safety touch panel, a light curtain and other protection devices are mainly used for detecting whether a passenger enters or exits or an obstacle exists in the closing process of the elevator door, and once the passenger or the obstacle is found, a signal is sent out to reopen the elevator door so as to ensure the safety of the passenger taking the elevator. The existing scheme mainly has the following problems: mechanical safety touch panels, light curtains and other protection devices have dead zones, for example, the devices cannot cover all the range of the height direction of the elevator door and cannot detect small-sized obstacles.

In certain situations, such as when a passenger is connected to an associated ladder with an object (person) via a connection (e.g., a rope), for example, an adult may hold a child with a "safety rope for preventing wandering away" to ride the ladder, or a child may hold a balloon with a rope to ride the ladder, or a passenger may hold an animal with a "dog leash" to ride the ladder, etc. When the passengers and the associated elevator-taking objects (persons) are respectively positioned in the elevator car and outside the elevator car, the mechanical safety touch panel, the light curtain and other protection devices cannot completely identify the risks in the closing process of the elevator door, and related accident cases also occur occasionally.

According to the foreign matter detection device 100 for the elevator door 1000 of the embodiment of the invention, the detection piece 1 is arranged at one end of one door body 200 close to the other door body 200, and the detection piece 1 rotates and switches between the first position F1 and the second position F2 by taking the second end 12 as a circle center, so that whether foreign matter is blocked between the two door bodies can be detected during the rotation process of the detection piece 1. The foreign matter detection device 100 is compact in structure, and compared with protection devices such as a mechanical safety touch panel and a light curtain in the prior art, the foreign matter detection device 100 can solve the problem of detection blind areas, further avoid the occurrence of elevator taking accidents in certain scenes, and further guarantee the safety of passengers taking the elevator to the maximum extent.

In some embodiments of the present invention, referring to fig. 1-3, when the detecting member 1 is switched between the first position F1 and the second position F2, the detecting member 1 rotates 180 ° around the second end 12. From this can be convenient for realize at first position F1, detection piece 1 is located one of them door body 200's the one end that is close to another door body 200, at second position F2, detection piece 1 is located the one end that is close to another door body 200 of one of them door body 200 equally, and then be convenient for detection piece 1 from initial position to the rotation process of final position, can pass through twice two door body 200's closing line 201, in other words, can be convenient for detection piece 1 rotates and passes through once closing line 201 when 0 ~ 90, detection piece 1 rotates and passes through closing line 201 for the second time when 90 ~ 180, thereby make detection piece 1 can detect whether accompany the foreign matter between two door bodies 200 with the maximum scope.

According to some embodiments of the present invention, the driving member 2 may include a motor and a sensor, the sensor is in communication with the motor, the sensor recognizes the blocking signal and transmits the blocking signal to the motor, and the motor drives the detecting member 1 to rotate in a direction opposite to the current rotation direction until the detecting member 1 returns to the initial position. As a possible implementation manner, the sensor may be a force value sensor, the force value sensor detects a resistance value of the foreign object to the detection member 1, when the resistance value is greater than or equal to a threshold value of the force value, the force value sensor generates a resistance signal and transmits the resistance signal to the motor, and the motor drives the detection member 1 to rotate in a direction opposite to the current rotation direction until the detection member 1 returns to the initial position.

It is understood that the force value threshold can be set according to experience, practice and experiment, and when the obstruction force value of the detecting member 1 is greater than or equal to the force value threshold, it indicates that the obstacle may cause danger to the elevator. Wherein, can detect the size of the hindrance power value through the power value sensor, judge whether the hindrance power value is the power value threshold value more than or equal to, when the hindrance power value is more than or equal to the power value threshold value, the power value sensor can generate the hindrance signal and give the motor the hindrance signal transmission, therefore, the motor can drive the rotation in opposite direction of detecting 1 orientation current direction of rotation, return initial position until detecting 1, after detecting 1 returns initial position, two door bodies 200 can open, and then, the passenger can clear away the foreign matter between two door bodies 200, make passenger's the security of the lives and property protected.

In some embodiments of the present invention, in conjunction with fig. 1-3, the length of the detecting member 1 is greater than or equal to one-half of the height of the doorway where the elevator door 1000 is located, and the driving member 2 is disposed at the elevator door 1000 and located at one-half of the height of the doorway where the elevator door 1000 is located. Here, the doorway may be understood as a doorway of an elevator car through which passengers enter and exit the elevator car, and an elevator door 1000 is provided at the doorway to open and close the doorway.

It can be understood that the driving member 2 is disposed at the elevator door 1000, and is located at a half of the height of the entrance/exit of the elevator door 1000, and since the second end 12 of the detecting member 1 is connected to the driving member 2, the second end 12 of the detecting member 1 is also located at a half of the height of the entrance/exit of the elevator door 1000, and since the detecting member 1 rotates between the first position F1 and the second position F2 with the second end 12 as the center of circle, the length of the detecting member 1 is greater than or equal to the half of the height of the entrance/exit of the elevator door 1000, so that the detecting member 1 can sweep the height range of the closing line 201 of the two door bodies 200 to the maximum extent from the first position F1 to the second position F2, or from the second position F2 to the first position F1, thereby reducing the dead zone for detecting foreign matters.

In some embodiments of the present invention, as shown in fig. 1-2, the foreign object detection apparatus 100 may further include a slide rail 3 and a connecting rod 4, where the slide rail 3 is disposed on one of the door bodies 200 provided with the detection piece 1 and is located at one end of the detection piece 1 away from the other door body 200; one end of the connecting rod 4 can be pivotally connected with the detecting piece 1, and the other end of the connecting rod 4 can be slidably arranged on the sliding rail 3. Therefore, in the rotating process of the detecting piece 1, the connecting rod 4 can play a role in stabilizing the detecting piece 1, so that the rotation of the detecting piece 1 is more stable and reliable. Wherein, but the one end pivot ground of connecting rod 4 is connected with detection piece 1, and slide rail 3 is located to the other end slidable of connecting rod 4, and slide rail 3 is located and is equipped with on the door body 200 of detection piece 1, and is located the one end of keeping away from another door body 200 of detection piece 1 and can be convenient for realize that connecting rod 4 helps stabilize detection piece 1, and detection piece 1 can use second end 12 to rotate as the centre of a circle.

Further, referring to fig. 1 to 2, the foreign object detection apparatus 100 further includes a slider 5, the slider 5 is connected to the other end of the connecting rod 4, and the slider 5 is slidably disposed on the sliding rail 3. Thereby, it is convenient to realize that the other end of the connecting rod 4 is slidably arranged on the sliding rail 3.

According to some embodiments of the present invention, as shown in fig. 1, the foreign object detection apparatus 100 further includes a contactor 6, the contactor 6 includes a male end 61 and a female end 62, one of the male end 61 and the female end 62 is disposed on the slider 5, and the other is disposed at an end of the sliding rail 3 far away from the other door body 200, the male end 61 and the female end 62 are connected in series in a safety loop of the elevator system, wherein in the first position F1 and the second position F2, the male end 61 and the female end 62 are in contact with each other, and the safety loop is conducted.

It can be understood that, when the initial position is the first position F1, the detecting member 1 starts to rotate from the first position F1, and at this time, the connecting rod 4 drives the sliding block 5 to be located at the end of the extending direction of the sliding rail 3 far away from the other door body 200, after a passenger gets on or off the elevator car, the elevator door 1000 is closed, and when there is no foreign matter obstruction, the detecting member 1 can smoothly rotate from the first position F1 to the second position F2, and along with the movement of the detecting member 1, the sliding block 5 moves from the end of the extending direction of the sliding rail 3 far away from the other door body 200 toward the end of the sliding rail 3 close to the other door body 200, and then moves toward the end of the extending direction of the sliding rail 3 far away from the other door body 200, that is, when the detecting member 1 rotates from the first position F1 to the second position F2, the sliding block 5 reciprocates along the sliding rail 3.

When the initial position is the second position F2, the detecting member 1 starts to rotate from the second position F2, and similarly, the connecting rod 4 drives the sliding block 5 to be located at the end portion, far away from the other door body 200, of the extension direction of the sliding rail 3, and after a passenger gets on or off the elevator car, the elevator door 1000 is closed, when there is no foreign matter obstruction, the detecting member 1 can smoothly rotate from the second position F2 to the first position F1, and along with the movement of the detecting member 1, the sliding block 5 moves from the end portion, far away from the other door body 200, of the extension direction of the sliding rail 3 toward the end portion, near the other door body 200, of the sliding rail 3, and then moves toward the end portion, far away from the other door body 200, of the extension direction of the sliding rail 3, that is, when the detecting member 1 rotates to the first position F1 at the second position F2, the sliding block 5 reciprocates along the sliding rail 3.

When a foreign matter is clamped between the two door bodies 200, the detection piece 1 moves to the closing line 201 of the two door bodies 200 from the initial position, returns to the initial position after detecting the foreign matter, and at the moment, the male end 61 and the female end 62 can be in contact fit, the safety circuit is conducted, and therefore the elevator door 1000 can be opened again under the conditions that an obstacle signal is identified and the safety circuit is conducted.

When no foreign matter exists between the two door bodies 200, the detecting piece 1 moves from the initial position to the end position, that is, the detecting piece 1 moves from the first position F1 to the second position F2, or moves from the second position F2 to the first position F1, at this time, the male end 61 and the female end 62 can be in contact fit, and the safety circuit is conducted. In this way, the elevator car can be started if it is detected that the detection element 1 has moved from the starting position into the end position and the safety circuit is switched on.

In some embodiments of the present invention, the foreign object detection apparatus 100 may further include a time controller, the time controller is in communication connection with the contactor 6, and the time controller is in communication connection with the driving element 2, wherein after the two door bodies 200 are closed, the driving element 2 drives the detection element 1 to rotate from the initial position to the end position, the time controller identifies a separation duration signal of the male end 61 and the female end 62 during the rotation of the detection element 1 from the initial position to the end position, and the driving element 2 drives the detection element 1 to rotate according to the separation duration signal.

As a possible implementation manner, the time controller identifies and records the separation duration of the male end 61 and the female end 62 in the rotation process of the detecting piece 1 from the initial position to the end position, compares the separation duration with a time threshold, and when the separation duration is greater than or equal to the time threshold, the driving piece 2 drives the detecting piece 1 to rotate in the opposite direction of the current rotation direction until the detecting piece 1 returns to the initial position, and after the detecting piece 1 returns to the initial position, the two door bodies 200 are opened.

It will be understood that the time threshold may be calculated from the rotation speed of the detecting member 1 or experimentally measured, and when the separation time is greater than or equal to the time threshold, it indicates that the obstacle may cause danger to the elevator. The time controller can identify and record the separation time of the male end 61 and the female end 62 in the process of rotating the detection piece 1 from the initial position to the end position, compare the separation time with the time threshold, judge whether the separation time is greater than or equal to the time threshold, and send a signal to the motor when the separation time is greater than or equal to the time threshold, so that the motor can drive the detection piece 1 to rotate in the opposite direction of the current rotation direction until the detection piece 1 returns to the initial position, and after the detection piece 1 returns to the initial position, the two door bodies 200 can be opened, and then the passengers can clear foreign matters between the two door bodies 200, so that the life and property safety of the passengers is guaranteed.

The elevator door 1000 according to the embodiment of the present invention includes the foreign matter detection apparatus 100 for the elevator door 1000 as described above; and two door bodies 200 arranged adjacently, wherein the foreign matter detection device 100 is arranged on one door body 200.

According to the elevator door 1000 of the embodiment of the invention, the detection piece 1 is arranged at one end of one door body 200 close to the other door body 200, and the detection piece 1 rotates and switches between the first position F1 and the second position F2 by taking the second end 12 as a circle center, so that whether foreign matter blocks between the two door bodies can be detected in the rotation process of the detection piece 1. The foreign matter detection device 100 is compact in structure, and compared with protection devices such as a mechanical safety touch panel and a light curtain in the prior art, the foreign matter detection device 100 can solve the problem of detection blind areas, further avoid the occurrence of elevator taking accidents in certain scenes, and further guarantee the safety of passengers taking the elevator to the maximum extent.

An elevator system according to an embodiment of the invention comprises an elevator door 1000 according to the above.

According to the elevator system provided by the embodiment of the invention, the detection piece 1 is arranged at one end of one door body 200 close to the other door body 200, and the detection piece 1 is rotationally switched between the first position F1 and the second position F2 by taking the second end 12 as a circle center, so that whether foreign matter is blocked between the two doors can be detected in the rotation process of the detection piece 1. The foreign matter detection device 100 is compact in structure, and compared with protection devices such as a mechanical safety touch panel and a light curtain in the prior art, the foreign matter detection device 100 can solve the problem of detection blind areas, further avoid the occurrence of elevator taking accidents in certain scenes, and further guarantee the safety of passengers taking the elevator to the maximum extent.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

It will be appreciated by a person skilled in the art that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present invention are possible, even if such combinations or combinations are not explicitly recited in the present invention. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present invention may be made without departing from the spirit and teachings of the invention. All such combinations and/or associations fall within the scope of the present invention.

While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. Accordingly, the scope of the present invention should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by the equivalents thereof.

Claims (12)

1. The utility model provides a foreign matter detection device for lift-cabin door, the lift-cabin door includes the door body that two adjacent settings, its characterized in that includes:

the elevator door comprises an elevator door body, a detection piece and a control unit, wherein the elevator door body comprises a first door body and a second door body, the detection piece is provided with a first position and a second position and can be switched between the first position and the second position, in the first position, the detection piece is positioned at one end, close to the other door body, of one door body, and the first end extends towards the top of the elevator door; in the second position, the detection piece is positioned at one end of one door body close to the other door body, and the first end extends towards the bottom of the elevator door; and

the driving piece is connected with the second end to drive the detection piece to rotate and switch between the first position and the second position by taking the second end as a circle center,

wherein, two door bodies are closed back, the driving piece drive the detection piece begins to rotate from the initial position, the detection piece is through the closing line of two door bodies, when accompany the foreign matter between two door bodies, the detection piece is hindered by the foreign matter, driving piece discernment hinders signal and drive the detection piece is towards the rotation in opposite direction of current direction of rotation, until the detection piece returns the initial position, the detection piece returns behind the initial position, two door bodies are opened.

2. The foreign matter detection device for elevator doors according to claim 1, wherein the detection member rotates 180 ° around the second end when the detection member is switched between the first position and the second position.

3. The foreign object detection apparatus for an elevator door according to claim 1, wherein the driving member includes:

a motor; and

the sensor is in communication connection with the motor, recognizes an obstruction signal and transmits the obstruction signal to the motor, and the motor drives the detection piece to rotate towards the reverse direction of the current rotation direction until the detection piece returns to the initial position.

4. The foreign matter detecting apparatus for elevator door according to claim 3, wherein the sensor is a force value sensor, the force value sensor detects a resistance value of the foreign matter to the detecting member, when the resistance value is greater than or equal to a force value threshold, the force value sensor generates a resistance signal and transmits the resistance signal to the motor, and the motor drives the detecting member to rotate in a direction opposite to a current rotation direction until the detecting member returns to the initial position.

5. The apparatus of claim 1, wherein the length of the sensing member is equal to or greater than a half of the height of the elevator door, and the driving member is disposed at the elevator door and at a half of the height of the elevator door.

6. The foreign matter detection device for elevator door according to any one of claims 1 to 5, characterized by further comprising:

the sliding rail is arranged on one door body provided with the detection piece and is positioned at one end, far away from the other door body, of the detection piece; and

one end of the connecting rod can be connected with the detection piece in a pivoting mode, and the other end of the connecting rod can be arranged on the sliding rail in a sliding mode.

7. The foreign matter detection device for elevator door according to claim 6, characterized by further comprising:

the slider, the slider with the other end of connecting rod is connected, slider slidable locate the slide rail.

8. The foreign matter detection device for elevator door according to claim 7, further comprising:

the contactor, the contactor includes public end and female end, public end with one of female end is located on the slider, and another is located slide rail extending direction's the tip of keeping away from another door body, public end with female end is established ties in elevator system's safety circuit, wherein first position with the second position, public end with female end contact cooperation, safety circuit switches on.

9. The foreign matter detection device for elevator door according to claim 8, further comprising:

the time controller is in communication connection with the contactor and the driving piece, wherein after the two door bodies are closed, the driving piece drives the detection piece to rotate from the initial position to the end position, the time controller identifies separation duration signals of the male end and the female end in the rotation process of the detection piece from the initial position to the end position, and the driving piece drives the detection piece to rotate according to the separation duration signals.

10. The foreign matter detection device for elevator door according to claim 9, wherein the time controller recognizes a separation time period of the male end and the female end during rotation of the detection member from the initial position to the final position, compares the separation time period with a time threshold, and when the separation time period is equal to or longer than the time threshold, the driving member drives the detection member to rotate in a direction opposite to a current rotation direction until the detection member returns to the initial position, and after the detection member returns to the initial position, the two door bodies are opened.

11. An elevator door, comprising:

the foreign matter detection device for an elevator door according to any one of claims 1 to 10; and

two adjacent door bodies that set up, foreign matter detection device locates one of them door body.

12. Elevator system, characterized in that it comprises an elevator door according to claim 11.

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