Anti-pinch passenger elevator

Abstract

The utility model discloses an anti-pinch passenger elevator, which belongs to the field of elevators and comprises a lift car arranged in an elevator shaft, the lift car moves up and down in the elevator shaft through a traction mechanism, and an elevator door capable of being opened and closed is arranged on the lift car. An anti-pinch unit capable of forming a light curtain and automatically cleaning an emitter to improve anti-pinch monitoring is arranged on the lift car, an anti-pinch gasket is arranged on the lift door, the anti-pinch unit comprises an infrared light curtain, and a cleaning mechanism connected with the lift door and driven by the lift door to move is arranged on the infrared light curtain. The cleaning mechanism comprises a connecting frame which moves outside the infrared light curtain through a guide assembly. According to the anti-pinch passenger elevator, the lens can be automatically cleaned through the cleaning mechanism along with opening and closing of the elevator door, impurities on the infrared light curtain lens are effectively removed, it is ensured that the transmitting tube and the receiving tube of the light curtain can accurately and timely detect obstacles, and therefore the safety of the elevator is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field especially relates to a kind of anti-pinch passenger elevator. BACKGROUND

[0002] With the development of science and technology, elevator appears more and more in our life, whether home life or shopping, the convenience of elevator saves us a lot of physical strength and time, and also improves our quality of life. Passenger elevator is designed for transporting passengers, and the safety, comfort and efficiency of passenger elevator as an indispensable means of transport in modern multi-storey building are crucial.

[0003] The light curtain is an infrared sensing device installed between the elevator doors. These infrared rays form a plane similar to a light curtain between the elevator doors. When an object blocks any one or more infrared rays in the light curtain, the infrared signal received by the receiving end will change, thereby controlling the elevator doors to stop closing. In daily use, the lenses of the infrared transmitter and receiver are prone to accumulate dust, dirt and other debris. These pollutants can block the emission and reception of infrared rays, resulting in a decrease in the detection sensitivity of the light curtain, which may result in misjudgment or missed judgment, causing the anti-pinch function to fail. SUMMARY

[0004] The utility model aims at: in order to solve the problem that the light curtain for preventing pinch on the passenger elevator is prone to accumulate dust, dirt and other debris, which can block the emission and reception of infrared rays, resulting in a decrease in the detection sensitivity of the light curtain, and proposes an anti-pinch passenger elevator.

[0005] To achieve the above purpose, the utility model adopts the following technology: an anti-pinch passenger elevator, comprising a car arranged in an elevator shaft, the car is moved up and down in the elevator shaft by a traction mechanism, and the car is provided with an elevator door that can be opened and closed, the car is provided with an anti-pinch unit that can form a light curtain and automatically clean the emitter to improve the anti-pinch monitoring, and the elevator door is provided with an anti-pinch gasket.

[0006] As a further description of the above technical solution: the anti-pinch unit comprises an infrared light curtain, and the infrared light curtain is provided with a cleaning mechanism connected with the elevator door and driven to move by the elevator door.

[0007] As a further description of the above technical solution: the cleaning mechanism comprises a connecting frame that moves outside the infrared light curtain through a guide assembly, the bottom of the connecting frame is provided with a brush plate assembly, and the connecting frame is detachably connected with the elevator door through a connecting arm.

[0008] As a further description of the above technical solution: the brush plate assembly includes a fixed plate detachably connected with the connecting frame, and the fixed plate is provided with cleaning cotton abutting against the lens of the infrared light curtain.

[0009] As a further description of the above technical solution: both ends of the fixed plate are provided with limiting blocks through mounting grooves, and the limiting blocks can move along the length direction of the fixed plate at both ends through springs, the limiting blocks are provided with pull plates, and the connecting frame is provided with positioning holes matched with the limiting blocks.

[0010] As a further description of the above technical solution: the guide assembly includes guide rods arranged along the length direction of the infrared light curtain through mounting seats, and both ends of the guide rods are provided with mounting nuts abutting against the mounting seats through threaded ends.

[0011] As a further description of the above technical solution: the anti-pinch gasket is internally provided with a cavity, and the cavity is in communication with the external space of the anti-pinch gasket through a through hole.

[0012] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0013] The cleaning mechanism on the infrared light curtain can timely remove dust, stains and other pollutants on the infrared light curtain, ensure that the light curtain can accurately detect objects between the elevator doors, make the anti-pinch function stable and reliable, reduce the probability of occurrence of the accident of pinching people and objects, do not need to frequently arrange staff to manually clean the light curtain lens, save the labor cost and time cost, improve the use efficiency of the elevator, and make the maintenance work easier. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 An overall structure schematic diagram is shown according to an embodiment of the present application;

[0015] Figure 2 A car structure schematic diagram is shown according to an embodiment of the present application; Figure 1

[0016] Figure 3 A car structure schematic diagram is shown according to an embodiment of the present application; Figure 2

[0017] Figure 4 A structure schematic diagram of the anti-pinch unit is shown according to an embodiment of the present application;

[0018] Figure 5 A structure schematic diagram of the cleaning mechanism is shown according to an embodiment of the present application;

[0019] Figure 6 A structure schematic diagram of the brush plate assembly is shown according to an embodiment of the present application;​​

[0020] Figure 7 A structure diagram of a guide assembly is shown according to an embodiment of the utility model;

[0021] Figure 8 A sectional view of the anti-pinch gasket is shown according to an embodiment of the utility model.

[0022] Legend:

[0023] 1, elevator shaft;2, traction mechanism;3, car;4, elevator door;5, anti-pinch unit;51, infrared light curtain;52, cleaning mechanism;521, guide assembly;5211, mounting seat;5212, guide rod;5213, threaded end;5214, mounting nut;522, connecting frame;523, brush plate assembly;5231, fixed plate;5232, cleaning cotton;5233, mounting groove;5234, limiting block;5235, spring;5236, pull plate;524, connecting arm;6, anti-pinch gasket;61, cavity;62, through hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Reference Figures 1-8 The anti-pinch passenger elevator provided by the embodiment comprises a car 3 arranged in an elevator shaft 1, the car 3 is lifted and moved in the elevator shaft 1 under the traction of a traction mechanism 2, and the car 3 is provided with an elevator door 4 capable of being opened and closed, the car 3 is provided with an anti-pinch unit 5 capable of forming a light curtain and automatically cleaning an emitter to improve anti-pinch monitoring, the elevator door 4 is provided with an anti-pinch gasket 6, and the anti-pinch unit 5 comprises an infrared light curtain 51.

[0026] In the utility model, the car 3 of the elevator is lifted and moved in the elevator shaft 1 under the traction of the traction mechanism 2, so that the conveying of passengers is realized, the traction mechanism 2 mainly comprises a traction machine, a traction steel wire rope, a guide wheel and a reverse pulley, and the function is to output and transmit power, so that the elevator runs, when the elevator runs, the infrared light curtain 51 of the anti-pinch unit 5 is composed of a transmitting end and a receiving end, the transmitting end will emit a plurality of infrared rays, the infrared rays form a plane similar to a light curtain between the elevator doors 4, and the receiving end is responsible for receiving the infrared rays emitted by the transmitting end, when an object blocks any one or more infrared rays in the light curtain, the infrared ray signal received by the receiving end will change, so that the elevator door 4 stops closing.

[0027] Specifically, as shown in Figures 3-5 , the infrared light curtain 51 is provided with a cleaning mechanism 52 connected with the elevator door 4 and driven to move by the elevator door 4, the cleaning mechanism 52 includes a connecting frame 522 moving outside the infrared light curtain 51 through a guide assembly 521, the bottom of the connecting frame 522 is provided with a brush plate assembly 523, and the connecting frame 522 is detachably connected with the elevator door 4 through a connecting arm 524, the brush plate assembly 523 includes a fixed plate 5231 detachably connected with the connecting frame 522, and the fixed plate 5231 is provided with a cleaning cotton 5232 abutting against the lens of the infrared light curtain 51.

[0028] Wherein, after the connecting frame 522 is connected with the elevator door 4 through the connecting arm 524, the connecting frame 522 will slide on the guide assembly 521 when the elevator door 4 is opened and closed, so that the cleaning cotton 5232 on the fixed plate 5231 at the bottom of the connecting frame 522 moves on the lens of the infrared light curtain 51, and the dust, stains and other pollutants attached to the lens of the infrared light curtain 51 will be removed in time with the movement of the cleaning cotton 5232, ensuring that the infrared light curtain 51 can accurately detect the object between the elevator doors 4, making the anti-pinch function stable and reliable, reducing the probability of occurrence of pinch accidents, without the need for frequent arrangement of staff to clean the light curtain lens manually, saving labor cost and time cost, improving the use efficiency of the elevator, and making the maintenance work easier.

[0029] Specifically, as shown in Figure 5 and Figure 6 , both ends of the fixed plate 5231 are provided with a limiting block 5234 through a mounting slot 5233, and the limiting block 5234 can move along the length direction of the fixed plate 5231 through a spring 5235, the limiting block 5234 is provided with a pull plate 5236, and the connecting frame 522 is provided with a positioning hole matched with the limiting block 5234.

[0030] Wherein, the cleaning cotton 5232 is used for cleaning the dust, stains and other pollutants on the lens of the infrared light curtain 51, so it needs to be replaced and cleaned regularly. When the cleaning cotton 5232 is replaced, the limiting block 5234 is pulled by the pull plate 5236, so that the limiting block 5234 is retracted in the mounting slot 5233 after compressing the spring 5235, at this time, the limiting block 5234 is separated from the positioning hole of the connecting frame 522, then the fixed plate 5231 together with the cleaning cotton 5232 can be detached from the connecting frame 522, which is simple and convenient, and can facilitate the disassembly of the cleaning cotton 5232, thereby saving the replacement time of the cleaning cotton 5232.

[0031] Specifically, as shown in Figure 5 and Figure 7As shown, the guide assembly 521 comprises guide rods 5212 arranged along the length direction of the infrared curtain 51 through mounting bases 5211, and the two ends of the guide rods 5212 are provided with mounting nuts 5214 abutting on the mounting bases 5211 through threaded ends 5213.

[0032] Wherein, the guide rods 5212 between the mounting bases 5211 are through-connection with the connecting frame 522 and are in sliding connection with the connecting frame 522, the guide rods 5212 can ensure that the brush plate assembly 523 at the bottom of the connecting frame 522 does not deviate when moving, and ensure accurate movement, and when the guide rods 5212 need to be disassembled, the mounting nuts 5214 on the threaded ends 5213 can be disassembled, which is simple and convenient.

[0033] Specifically, as shown in Figure 3 and Figure 8 As shown, the inside of the anti-pinch gasket 6 is provided with a cavity 61, and the cavity 61 is in communication with the outside space of the anti-pinch gasket 6 through a through hole 62. The anti-pinch gasket 6 is made of rubber material, and the rubber material itself has certain elasticity and buffering performance. When the elevator door 4 contacts with the obstacle, the anti-pinch gasket 6 can absorb part of the impact force, and reduce the damage to the obstacle. At the same time, the design of the cavity 61 and the through hole 62 further enhances the buffering effect of the anti-pinch gasket 6, so that the impact force of the elevator door 4 in the closing process is better dispersed and absorbed.

[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An anti-pinch type passenger elevator comprising a car (3) provided in an elevator shaft (1), the car (3) being moved up and down within the elevator shaft (1) by a traction mechanism (2), and an elevator door (4) capable of being opened and closed being provided on the car (3), characterized in that, The car (3) is provided with an anti-pinch unit (5) capable of forming a light curtain and capable of automatically cleaning the emitter to improve the anti-pinch monitoring, and the elevator door (4) is provided with an anti-pinch pad (6).

2. The anti-pinch type passenger elevator according to claim 1, wherein The anti-pinch unit (5) comprises an infrared light curtain (51), and the infrared light curtain (51) is provided with a cleaning mechanism (52) connected with the elevator door (4) and driven to move by the elevator door (4).

3. The anti-pinch type passenger elevator according to claim 2, wherein The cleaning mechanism (52) comprises a connecting frame (522) moving outside the infrared light curtain (51) through a guide assembly (521), the bottom of the connecting frame (522) is provided with a brush plate assembly (523), and the connecting frame (522) is detachably connected with the elevator door (4) through a connecting arm (524).

4. The anti-pinch type passenger elevator according to claim 3, wherein The brush plate assembly (523) comprises a fixed plate (5231) detachably connected with the connecting frame (522), and the fixed plate (5231) is provided with cleaning cotton (5232) abutting against the lens of the infrared light curtain (51).

5. The anti-pinch type passenger elevator according to claim 4, wherein Both ends of the fixed plate (5231) are provided with limiting blocks (5234) through mounting grooves (5233), the limiting blocks (5234) can move along the length direction of the fixed plate (5231) through springs (5235), the limiting blocks (5234) are provided with pull plates (5236), and the connecting frame (522) is provided with positioning holes matched with the limiting blocks (5234).

6. The anti-pinch type passenger elevator according to claim 3, wherein The guide assembly (521) comprises a guide rod (5212) arranged along the length direction of the infrared light curtain (51) through a mounting seat (5211), and both ends of the guide rod (5212) are provided with mounting nuts (5214) abutting against the mounting seat (5211) through threaded ends (5213).

7. The anti-pinch type passenger elevator according to claim 1, wherein The anti-pinch pad (6) is internally provided with a cavity (61), and the cavity (61) is communicated with the space outside the anti-pinch pad (6) through a through hole (62).

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