Elevator based on anti-pinch device

Abstract

The utility model relates to an elevator based on an anti-pinch device. The elevator comprises an elevator car, the anti-pinch device arranged at the position of the elevator car, an elevator controller, an in-car displayer and a voice prompt system. The anti-pinch device comprises a mounting plate and a detection sensor, the mounting plate is arranged at the position of an elevator car lintel, and the detection sensor is arranged at the position of the mounting plate and used for detecting the range of an elevator car front wall stand column. The elevator controller is connected with the detection sensor, and the in-car displayer and the voice prompt system are both connected with the elevator controller. According to the elevator, the detection sensor is arranged at the elevator lintel, range detection is conducted on the stand columns on the front wall of the elevator car, in the elevator door opening process, if foreign matter enters the detection range of the detection sensor (namely, the hands, the feet and other parts of passengers are attached to the elevator door), door opening of the elevator door can be stopped so that the hands, the feet and other parts of the passengers can be prevented from being clamped, and the safety of the passengers is guaranteed; and after the risk is relieved, the elevator can continue to complete the complete normal door opening action.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator safety protection, and particularly relates to an elevator based on a hand pinch prevention device. Background Art

[0002] The performance and safety of elevators are of utmost importance in the elevator market competition. Among them, the anti-pinch function of elevators is an important measure to ensure the safety of passengers. Usually, a light curtain is installed between the car door and the landing door. When the elevator is running and closing the door, if a foreign object is detected blocking the elevator door, the elevator door will automatically open or stop closing to prevent passengers from being pinched. However, due to the gaps between the car door and the front wall column of the car, and between the landing door and the elevator door frame, when the elevator door opens, if a passenger accidentally sticks their hands, feet or other parts to the elevator door, as the elevator door moves open, it is possible to pinch the hands, feet or other parts into the gaps, causing injury to the passenger. The detection range of the light curtain is limited between the car door and the landing door, and it cannot detect whether a passenger sticks their hands, feet or other parts to the elevator door. Therefore, it cannot play an anti-pinch function when the door opens. Content of the Utility Model

[0003] The purpose of the utility model is to provide an elevator based on a hand pinch prevention device, which can perform range detection on the front wall column of the car. During the elevator door opening process, if a foreign object blocks the detection sensor, the elevator will stop opening the door to prevent the hands, feet or other parts of the passenger from being pinched, ensuring the safety of the passenger.

[0004] To achieve the above object, an elevator based on a hand pinch prevention device is provided, including:

[0005] A car;

[0006] A hand pinch prevention device, arranged at the car, and the hand pinch prevention device includes:

[0007] A mounting plate, arranged at the car door lintel;

[0008] A detection sensor, arranged at the mounting plate, and used for performing range detection on the front wall column of the car;

[0009] An elevator controller, connected to the detection sensor;

[0010] An in-car display and a voice prompt system, both the in-car display and the voice prompt system are connected to the elevator controller.

[0011] Optionally, there are two detection sensors, and the two detection sensors respectively perform range detection on the columns on both sides of the car.

[0012] Optionally, the detection sensor is a diffuse reflection probe.

[0013] Optionally, the detection distance of the diffuse reflection probe is less than the distance between it and the car floor.

[0014] Optionally, the detection sensor is a laser ranging sensor.

[0015] The beneficial effects of the present utility model are as follows: By arranging a detection sensor at the elevator lintel to perform range detection on the column of the front wall of the car, during the elevator door opening process, if a foreign object enters the detection range of the detection sensor, the elevator door will stop opening to prevent the hands, feet and other parts of passengers from being pinched, ensuring the safety of passengers.

[0016] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it according to the content of the specification, the following takes the preferred embodiment of the present utility model and combines with the drawings to describe in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the first schematic structural diagram of an elevator based on an anti-pinch device shown in an embodiment of the present utility model;

[0018] Figure 2 It is the second schematic structural diagram of an elevator based on an anti-pinch device shown in an embodiment of the present utility model;

[0019] Figure 3 It is the detection effect schematic diagram of an elevator based on an anti-pinch device shown in an embodiment of the present utility model;

[0020] In the figure: 1. Anti-pinch device; 11. Mounting plate; 12. Detection sensor; 2. Car. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solution of the present utility model will be clearly and completely described below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] See also Figures 1 to 3 An elevator based on an anti-pinch device as shown in a preferred embodiment of the present application includes a car 2, an anti-pinch device 1 arranged at the car 2, an elevator controller, an in-car display, and a voice prompt system. The anti-pinch device 1 includes a mounting plate 11 and a detection sensor 12. The mounting plate 11 is arranged at the door lintel of the car 2. The detection sensor 12 is arranged at the mounting plate 11 and is used to perform range detection on the front wall column of the car 2. The elevator controller is connected to the detection sensor 12, and the in-car display and the voice prompt system are both connected to the elevator controller.

[0025] According to the scheme of the embodiment of the utility model, since there are gaps between the elevator car door and the front wall column of the car 2 and between the elevator floor door and the elevator door frame, when the elevator door opens, if the passenger accidentally puts his hands, feet, etc. on the elevator door, as the elevator door opens and moves, the hands, feet, etc. may be caught in the gap and cause injury to the passenger. However, the detection range of the light curtain is limited to between the car door and the floor door, and it is impossible to detect whether the passenger puts his hands, feet, etc. on the elevator door, so it cannot play the anti-pinch function when the door is opened. Therefore, the present application sets a detection sensor 12 at the elevator door lintel to perform range detection on the front wall column of the car 2, and the range can simultaneously cover the gap between the elevator car door and the front wall column of the car 2 and between the elevator floor door and the elevator door frame. Therefore, during the elevator door opening process, if a foreign object enters the detection range of the detection sensor 12 (i.e., the passenger's hands, feet, etc. are attached to the elevator door), the elevator door will stop opening to prevent the passenger's hands, feet, etc. from being pinched, ensuring the safety of the passengers. When the risk is eliminated, the elevator will continue to complete the complete normal door opening action.

[0026] The following is a detailed description with specific embodiments:

[0027] There are two detection sensors 12, and the two detection sensors 12 respectively perform range detection on the columns on both sides of the car 2. Since elevators usually open doors in opposite directions, there are gaps on both sides of the elevator door, and thus there is a risk of pinching hands. Therefore, it is necessary to install a detection sensor 12 on each side of the elevator door for range detection to better prevent the elevator from pinching hands when opening the door.

[0028] In one embodiment, the detection sensor 12 is a diffuse reflection probe. Specifically, the diffuse reflection probe is of the diffuse reflection type. Therefore, the diffuse reflection probe can expand the detection range to simultaneously cover the gaps between the elevator car door and the front wall column of the car 2 and between the elevator landing door and the elevator door frame for range detection, improving the anti-pinch safety of the elevator.

[0029] Please refer to Figure 3 , the detection distance of the diffuse reflection probe is less than the distance between it and the bottom plate of the car 2. Since the diffuse reflection probe detects an object through reflection and then triggers a signal to make the elevator perform corresponding anti-pinch actions, under normal circumstances, the detection distance of the diffuse reflection probe should be less than the distance between it and the bottom plate of the car 2, so that the diffuse reflection probe will not be triggered under normal circumstances to cause the elevator to malfunction.

[0030] In another embodiment, the detection sensor 12 is a laser ranging sensor, which judges whether there is an object blocking by measuring the change in distance. Since the laser ranging sensor is a linear ranging sensor and its detection range is limited, several laser ranging sensors can be installed on both sides of the elevator car and the landing door lintel to increase its detection range, thereby improving the anti-pinch safety of the elevator.

[0031] The voice prompt system includes an alarm buzzer and a voice prompt device arranged in the car 2. If a foreign object enters the detection range of the detection sensor 12 (that is, parts such as the hands and feet of passengers are attached to the elevator door), the in-car display will give corresponding text prompts, the alarm buzzer will also sound an alarm, and at the same time the voice prompt device will broadcast corresponding voice prompt messages such as "Please do not approach the elevator door" and "Please leave the elevator door" to remind passengers to stay away from the elevator door and avoid the risk of pinching hands.

[0032] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0033] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. An elevator based on a pinch protection device, characterized in that, Comprising: Carriage; Anti-pinch device, provided at the carriage, the anti-pinch device comprising: Mounting plate, provided at the lintel of the car door; Detection sensor, provided at the mounting plate, for performing range detection on the upright column at the front wall of the carriage; Elevator controller, connected to the detection sensor; In-car display and voice prompt system, both the in-car display and the voice prompt system are connected to the elevator controller.

2. The elevator based on the anti-pinch device according to claim 1, characterized in that, There are two detection sensors, and the two detection sensors respectively perform range detection on the upright columns on both sides of the carriage.

3. The elevator based on the anti-pinch device according to claim 1, characterized in that, The detection sensor is a diffuse reflection probe.

4. The elevator based on the anti-pinch device according to claim 3, characterized in that, The detection distance of the diffuse reflection probe is less than the distance between it and the car floor.

5. The elevator based on the anti-pinch device according to claim 1, characterized in that, The detection sensor is a laser ranging sensor.

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