CN213037229U

CN213037229U - Elevator door opening anti-clamping device and door opening anti-clamping elevator

Info

Publication number: CN213037229U
Application number: CN202021098914.3U
Authority: CN
Inventors: 史记
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-04-23
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses an elevator opens door anti-pinch device and opens door anti-pinch elevator, anti-pinch device includes: the device comprises a switch sensing component, a trigger component and a control module; wherein the switch sensing assembly is arranged on an elevator door frame and a floor at an elevator; the triggering component is arranged on the elevator door frame and is positioned at an entrance of a gap between the elevator door frame and the elevator door, and the triggering component is connected with the switch sensing component and can trigger the switch sensing component to send a man clamping early warning signal; the control module is respectively electrically connected with the switch sensing assembly and the controller of the elevator and can send an anti-pinch instruction for controlling the elevator door to execute anti-pinch action to the controller of the elevator according to the human-pinch early warning signal of the switch sensing assembly. The anti-clamping device can avoid the problem that the elevator door clamps the hand in the gap between the elevator door and the elevator door frame in the door opening process.

Description

Elevator door opening anti-clamping device and door opening anti-clamping elevator

Technical Field

The utility model relates to an elevator safety field especially relates to an elevator opens door anti-pinch device and opens door anti-pinch elevator.

Background

By the end of 2019, the total registration amount of the elevators in China reaches 690 thousands of elevators. The safety accidents caused by the elevator are frequent while the elevator is convenient to provide, wherein the accident that people are clamped by an elevator door is a high-incidence area in a plurality of accidents.

At present, in order to prevent people from being clamped when the elevator is closed, safety light curtains are mostly installed on two sides of an elevator door to detect whether clamped objects exist or not, and then the people are prevented from being clamped when the elevator is controlled to be closed.

However, in order to ensure the smoothness of opening and closing the door of the elevator, a large gap is usually formed between the elevator door and the elevator door frame, and due to the existence of the gap, accidents such as frequent clamping of the elevator door and the like frequently occur in the opening process of the elevator door, but at present, no solution for preventing people from being clamped when the elevator door is opened exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an elevator anti-pinch device that opens door can prevent that the elevator from opening a door and pressing from both sides the people, solves the problem that accidents such as tong frequently take place in the elevator process of opening the door.

The utility model discloses a technical scheme does: an elevator door opening anti-pinch device, comprising:

the device comprises a switch sensing component, a trigger component and a control module; wherein the content of the first and second substances,

the switch sensing assembly is arranged on an elevator door frame and a floor at an elevator;

the triggering component is arranged on the elevator door frame and is positioned at an entrance of a gap between the elevator door frame and the elevator door, and the triggering component is connected with the switch sensing component and can trigger the switch sensing component to send a man clamping early warning signal;

the control module is respectively electrically connected with the switch sensing assembly and the controller of the elevator and can send an anti-pinch instruction for controlling the elevator door to execute anti-pinch action to the controller of the elevator according to the human-pinch early warning signal of the switch sensing assembly.

The utility model discloses a another kind of technical scheme does: the utility model provides an anti-pinch elevator, gap department between elevator door frame and lift-cabin door sets up one set at least elevator open door anti-pinch device.

By the foregoing the utility model provides a technical scheme can see out, the embodiment of the utility model provides an elevator opens the door and prevents that clamp device's advantage does:

the anti-pinch device comprises a door frame, a door body, a control module, a door clamping device, a switch sensing component and a triggering component, wherein the door clamping device comprises a door clamping device, a door clamping device and a control module, the door clamping device comprises a door clamping device, the door clamping device comprises a door clamping. Therefore, the problem that the gap between the elevator door and the elevator door frame clamps the hand in the door opening process of the elevator door is avoided.

Drawings

The drawings used in the description of the embodiments are briefly described below, and these drawings are only some embodiments of the invention, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural view of an anti-pinch device for opening a door of an elevator according to the present invention;

FIG. 2 is a schematic cross-sectional view taken at B-B in FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 1 from the top C;

FIG. 4 is a control flow chart of the anti-pinch device for opening the door of the elevator provided by the present invention;

fig. 5 is a schematic top view of an elevator door opening anti-pinch device according to another embodiment of the present invention;

the parts in the figure are: 1-door opening anti-pinch device; 11-a sensor; 12-another sensor; 13-a trigger member; 14-upper support; 15-lower support; 2-an inner door beam of the elevator door frame; 3-elevator car floor; 4-elevator inner side door; 5-outer elevator door; 6-an outer door beam of the elevator door frame; 7-walkway floors; 8-inner door frame of elevator; 9-an elevator outer door frame; 10-elevator car.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings, so that the above and other objects, features and advantages of the present invention are more clear. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

As shown in FIG. 1, the embodiment of the utility model provides an elevator opens door anti-pinch device can solve the elevator and open a door and press from both sides people's problem, include:

In one embodiment, the anti-pinch device further includes a switch sensing assembly comprising:

a set of control sensors; wherein the content of the first and second substances,

one of the comparison sensors is arranged below a door beam of the elevator door frame, the other comparison sensor is arranged on a floor of the elevator, the position of the comparison sensor corresponds to that of the comparison sensor above, the sending ends of the two comparison sensors are opposite to the receiving ends, and a detection passage is formed at an entrance of a gap between the elevator door frame and the elevator door in the vertical direction;

the triggering component is a hollow elastic protective sleeve and is arranged on an elevator door frame and between detection passages of the two contrast sensors, and the detection passages penetrate through the hollow elastic protective sleeve.

In the switch sensing assembly, one of a group of comparison sensors is arranged below a door beam of the elevator door frame through an upper bracket;

the other contrast sensor is erected on the floor of the elevator through a lower bracket. The mode of installing through upper and lower support not only is convenient for install contrast formula sensor and target detection thing, also can increase their steadiness.

Preferably, both control sensors of a set of control sensors employ photoelectric control sensors.

Preferably, the hollow elastic sheath tube is a light-tight or poor light-transmittance hollow elastic sheath tube, as long as the light transmittance of the sheath tube wall material meets the requirement of the correlation induction of the two sensors without leakage.

In another embodiment, the anti-pinch device further includes a switch sensing assembly comprising:

the reflective sensor is arranged below a door beam of the elevator door frame;

the target detection object is arranged on the floor of the elevator car and corresponds to the reflection type sensor in position;

the signal sending end of the reflective sensor is opposite to the target detection object, and a detection passage is formed at the entrance of the gap between the elevator door frame and the elevator door;

the triggering component is a hollow elastic protective sleeve and is arranged on an elevator door frame and positioned between a signal sending end of the reflective sensor and a detection passage formed by the target detection object, and the detection passage passes through the hollow elastic protective sleeve.

Preferably, the reflective sensor is arranged below a door beam of the elevator door frame through an upper bracket;

the target detection object is erected on the floor of the elevator through the lower support or is directly arranged on the floor of the elevator. The mode of installing through upper and lower support not only is convenient for install reflective sensor and target detection thing, can also increase their steadiness.

Preferably, the reflective sensor is any one of a diffuse reflection photoelectric sensor, a specular reflection photoelectric switch, an infrared reflection flow meter, a laser range finder, a camera, a code scanner, a 3D measuring instrument and an ultrasonic sensor;

the target detection object is a detection object matched with the type of the reflection type sensor used. Such as: the reflector, the two-dimensional code, the bar code and the like are arranged on the lower bracket and used as target detection objects, and the target detection objects are matched with the reflective sensor above the reflector, so that the detection can be realized. If some reflective sensors can directly use the floor of the elevator car and the walkway floor at the elevator as target detection objects, or only use the floor of the elevator car and the walkway floor as the target detection objects without arranging separate target detection objects.

the displacement sensor is arranged below a door beam of the elevator door frame;

the trigger component adopts a pull rope with a protective sleeve outside, the upper end of the pull rope is connected with the displacement sensor, specifically, the sensor trigger section is connected with the pull rope with poor firmness and plasticity, the lower end of the pull rope is connected with the floor at the elevator, and the connected pull rope is positioned at the entrance of a gap between the elevator door frame and the elevator door. The pull rope with the protective sleeve can prevent people from mistakenly touching.

Preferably, the displacement sensor is arranged below a door beam of the elevator door frame through an upper bracket;

the lower end of the pull rope is connected with the floor of the elevator through a lower support. The installation mode can increase the stability of the components and is convenient to disassemble and assemble.

Preferably, the displacement sensor is any one of a safety pull switch, a tension sensor and a pressure sensor. The pull rope is a rope with poor firmness and plasticity.

As will be known to those skilled in the art, the above-mentioned elevator doors refer to an elevator inner side door and an elevator outer side door, the elevator door frame refers to an elevator inner door frame and an elevator outer door frame, the door beam of the elevator door frame refers to an inner door beam of the elevator door frame (i.e., the door beam of the elevator inner door frame) and an outer door beam of the elevator door frame (i.e., the door beam of the elevator outer door frame), and the floor at the elevator refers to an elevator car floor and an elevator walkway floor, which are determined by the position where the door opening anti-pinch device of the elevator is installed, and will not be.

The embodiment of the utility model provides a still provide an anti-pinch elevator, be gap department between elevator door frame and lift-cabin door set up one set of foretell elevator and open door anti-pinch device at least. Preferably, four gaps between the inside and the outside of the elevator door and the elevator door frame are respectively provided with a set of the elevator door opening anti-pinch device, so that the anti-pinch function can be realized no matter the elevator door is opened or the elevator door is opened. Furthermore, the elevator door opening anti-pinch device can be arranged on the inner door frame and the outer door frame of the elevator and close to an installation space reserved at one corner of the inner side door and the outer side door of the elevator; or the inner door frame and the outer door frame of the elevator are arranged at the edge parts close to the inner side door and the outer side door of the elevator. The device is arranged at the entrance of the gap which can easily clamp people, and is convenient for touching.

The utility model discloses an elevator opens door and prevents pressing from both sides device working method as follows: after the elevator starts, normally move to appointed floor, the detection state of switch sensing component originally is shelterless or not touched. When a hand is about to be clamped into any one of four door seams between the elevator doors on two sides of the elevator and the door opening when the elevator is opened, the hand can touch the trigger component firstly, the trigger component does not hurt the hand, but the hand is extruded and deformed in the direction far away from the hand due to the interference of the hand, the deformation can influence the switch sensing component, the detection result of the switch sensing component is changed, the control module receives the clamping-person early warning signal and sends an anti-clamping instruction, the controller of the elevator judges that the hand is inclined to clamp the hand, the elevator doors are controlled to stop opening immediately and move in the reverse direction until the inclination of the hand is eliminated, the trigger component rebounds, the detection of the switch sensing component is not influenced, and the normal detection state is recovered. The elevator again performs the opening action of the elevator door. So the phenomenon of hand clamping when the elevator is opened is avoided.

Embodiments of the present invention will be further described with reference to the accompanying drawings. While the following portions, which are not described in detail, are to be understood as being well known in the art.

As shown in fig. 1, the present embodiment provides an anti-pinch device when an elevator door is opened, and fig. 1 is a view (front view) standing in an elevator car and facing the elevator door, and the elevator door is closed; fig. 2 is a view from the right side (left side view) when standing in the middle of the elevator door, facing away from the car; fig. 3 is a view (top view) looking down from the top of the elevator and elevator doorway walkway with the elevator doors closed;

taking the position of a person standing in the middle of an elevator door and facing away from a car as an example, four anti-pinch devices are arranged, wherein the four anti-pinch devices are respectively an anti-pinch device on the left outer side, an anti-pinch device on the left inner side, an anti-pinch device on the right outer side and an anti-pinch device on the right inner side (as shown in the top view of fig. 2).

Specifically, as shown in fig. 2, an upper bracket 14 is installed below the inner door beam of the elevator door frame and near the elevator door to connect with the inner door frame 8 of the elevator, a pair of sensors (for example, a photo sensor) is connected to the lower surface of the upper bracket, and a sensor 11 (for example, a sending end facing downward) of the photo sensor is connected to the lower surface of the upper bracket. A lower bracket 15 is arranged under the upper bracket and the emitting end of one sensor 11 and close to the floor of the elevator car, the upper surface of the lower bracket is connected with another sensor 13, namely the receiving end of the photoelectric sensor is contrasted, and the receiving end faces upwards. A trigger part 12 is arranged between two ends of a contrast photoelectric sensor, the trigger part 12 can adopt a hollow elastic protective sleeve, the hollow elastic protective sleeve is connected with a door frame on the inner side of the elevator, and the hollow elastic protective sleeve is of a hollow tubular structure, soft, smooth and elastic, and poor in light transmission. The right outer side, the left inner side and the right inner side of the elevator door are also connected with an upper bracket, a lower bracket, a contrast photoelectric sensor and a hollow elastic protective sleeve according to the same positions and sequence of the right inner side;

the sensors are respectively connected with the control module, the sensors receive signals, the control module judges whether the elevator door clamps the hands or not, and the elevator door reacts. The phenomenon of hand clamping when the elevator is opened is avoided.

The specific control flow is as shown in fig. 4, when the elevator is started, the elevator normally runs to a specified floor, and the original photoelectric detection state is not shielded. When a hand is about to be clamped into any one of four door seams between the elevator doors on two sides of the elevator and the door opening when the elevator is opened, the hand can touch the sheath firstly, the sheath is soft and cannot be injured, the sheath is extruded and deformed in the direction far away from the hand due to the interference of the hand, the deformation shields the space between the control photoelectricity, the detection result of the control photoelectricity is changed, the control center judges that the hand is inclined, the elevator doors are controlled to stop opening immediately and move in the reverse direction until the hand clamping tendency is eliminated, the sheath rebounds, the space between the control photoelectricity is not blocked, and the control photoelectricity detection state is recovered. The elevator again performs the opening action of the elevator door. So the phenomenon of hand clamping when the elevator is opened is avoided.

The utility model discloses an anti-pinch device can avoid the elevator to take place the tong phenomenon when opening the door, and fine solution elevator opens the door and does not protect, frequently takes place the problem of tong accident.

Furthermore, the contrast sensor in the anti-jamming device may be a contrast optical fiber or other contrast sensors, in addition to the contrast photoelectric sensor.

Furthermore, the contrast sensor in the anti-jamming device can be replaced by a reflection sensor, such as a reflection sensor of diffuse reflection photoelectric, mirror reflection photoelectric switch, infrared reflection flowmeter, laser range finder, camera, code scanner, 3D measuring instrument, ultrasonic sensor, etc. If the sending end of the signal is arranged on the bracket, the target detection object at the other end is as follows: the reflector, the two-dimensional code, the bar code and the like are arranged on the lower bracket, the target detection object locked and arranged on the lower bracket is determined according to the type of the selected sensor, and some sensors can directly use the floor of the elevator car and the floor of the walkway of the elevator as the target detection object without specially setting the target detection object.

Furthermore, the contrast sensor in the anti-clamping device can be replaced by a displacement sensor, such as a safety pull switch, a tension sensor, a pressure sensor and the like. The safety pull-cord switch can be arranged on the upper bracket, and the pull cord is connected with the lower bracket. The tension sensor or the pressure sensor and the like can be installed on the upper support, the sensor trigger section is connected with connecting devices such as ropes with poor firmness and plasticity, and the other end of each connecting device is installed on the lower support. It can be known that the sensor used is not limited to the above listed types, as long as the sensor can be conveniently arranged at the entrance of the gap between the door frame and the elevator door, and the sensor which is convenient for triggering the anti-door opening and hand clamping can be used.

In another preferred embodiment, as shown in fig. 5, the upper and lower brackets and the reference photoelectric sensor, as well as the hollow elastic sheath tube, can be installed in the installation space reserved on the inner and outer door frames near one corner of the elevator door without being installed between the inner and outer door frames, so that the installation can achieve the effects of beauty and preventing mistaken touch. Under the condition that the production precision meets the requirement, the upper bracket and the lower bracket can be omitted, and the positions of the upper bracket and the lower bracket for installing the photoelectric sensors can also be directly arranged on the inner door frame and the outer door frame of the elevator or the inner door beam and the outer door beam of the elevator and the floor.

Further, can also set up bee calling organ and/or prevent pressing from both sides the lamp area, with control module electrical connection, send at control module and prevent pressing from both sides the instruction simultaneously, carry out sound, light warning through bee calling organ and/or prevent pressing from both sides the lamp area, reach the effect of warning, further reduce the risk of preventing pressing from both sides.

The above is the preferred embodiment of the present invention, the protection scope of the present invention is not limited to these embodiments, and those skilled in the art can easily think of the changes and substitutions within the technical scope of the present invention, which is covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an elevator anti-pinch device that opens door which characterized in that includes:

2. The elevator door opening anti-pinch device of claim 1, wherein the switch sensing assembly comprises:

one of the comparison sensors is arranged below a door beam of the elevator door frame, the other comparison sensor is arranged on the floor, the position of the comparison sensor corresponds to that of the comparison sensor above, the sending ends and the receiving ends of the two comparison sensors are opposite, and a detection passage is formed at the entrance of a gap between the elevator door frame and the elevator door in the vertical direction;

3. The elevator door opening anti-pinch device of claim 2, wherein one of the set of comparison sensors is mounted below a door beam of the elevator door frame by an upper bracket;

the other contrast sensor is arranged on the floor through a lower bracket.

4. The elevator door opening anti-pinch device of claim 1, wherein the switch sensing assembly comprises:

the reflective sensor is arranged below a door beam of the elevator door frame;

the target detection object is arranged on the floor of the elevator and corresponds to the reflection type sensor in position;

5. The elevator door opening anti-pinch device according to claim 4, wherein the reflective sensor is mounted below a door beam of the elevator door frame by an upper bracket;

the target detection object is erected on the floor of the elevator car through the lower support or is directly arranged on the floor of the elevator.

6. The elevator door opening anti-pinch device according to claim 4 or 5, wherein the reflective sensor is any one of a diffuse reflection photoelectric sensor, a mirror reflection photoelectric switch, an infrared reflection flow meter, a laser range finder, a camera, a code scanner, a 3D measuring instrument and an ultrasonic sensor;

the target detection object is a detection object matched with the type of the reflection type sensor used.

7. The elevator door opening anti-pinch device of claim 1, wherein the switch sensing assembly comprises:

the trigger component adopts a pull rope with a protective sleeve outside, the upper end of the pull rope is connected with the displacement sensor, the lower end of the pull rope is connected with the floor at the elevator, and the connected pull rope is positioned at an entrance of a gap between the elevator door frame and the elevator door.

8. The elevator door opening anti-pinch device according to claim 7, wherein the displacement sensor is mounted below a door beam of the elevator door frame by an upper bracket;

the lower end of the pull rope is connected with the floor of the elevator car through a lower support.

9. The elevator door opening anti-pinch device according to claim 7 or 8, wherein the displacement sensor is any one of a safety pull-cord switch, a tension sensor and a pressure sensor.

10. An anti-pinch elevator is characterized in that at least one set of the anti-pinch device for opening the door of the elevator as claimed in any one of claims 1 to 9 is arranged at a gap between an elevator door frame and an elevator door.