High-speed elevator leveling sensor

Abstract

The utility model discloses a high-speed elevator leveling sensor which comprises a light insulation plate and a U-shaped main body, photoelectric sensing assemblies are arranged at the two ends of the main body, the main body is provided with an inserting groove, a transparent cover plate covers the photoelectric sensing assemblies, the main body is provided with an air spraying pipe, and one end of the air spraying pipe is adjacent to the photoelectric sensing assemblies. The air pressure mechanism is triggered by the light isolation plate and used for driving the air injection pipe to inject air to the photoelectric induction assembly. According to the utility model, the transparent cover plate covers the photoelectric sensing assembly, so that a protection effect is achieved, and the fault rate of the leveling sensor is reduced; the inserted transparent cover plate is convenient for subsequent maintenance and replacement, so that the use and maintenance convenience of the leveling sensor is improved; the air pressure mechanism can spray air to the transparent cover plate through the air spraying pipe, cleaning of the transparent cover plate is achieved, interference to light propagation is reduced, and the detection precision of the leveling sensor is improved; the air pressure mechanism is powered by the light isolation plate, extra electric power does not need to be consumed, and the energy-saving performance of the leveling sensor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flat layer sensors, and particularly relates to a flat layer sensor for high-speed elevators. Background Art

[0002] The flat layer sensor is a crucial component in the elevator system. Its main function is to detect the position of the elevator car in the hoistway, especially when the elevator arrives and is about to dock at a certain floor, to ensure that the elevator can accurately level.

[0003] Common flat layer sensors include electromagnetic induction type and photoelectric type. The photoelectric flat layer sensor detects the position of the elevator car through a photoelectric coupling device. The performance of the photoelectric flat layer sensor depends to a large extent on the stability and clarity of the optical signal. If the surface of the sensor is covered with dust or impurities, it will weaken or interfere with the normal propagation and reflection of light, resulting in a weak or distorted signal received by the sensor, which will affect the accurate judgment of the car position by the sensor and may even cause misoperation, affecting the safe operation of the elevator.

[0004] Therefore, it is necessary to improve the flat layer sensor in the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the defects existing in the prior art, and provide a flat layer sensor for high-speed elevators, which improves the detection accuracy of the flat layer sensor and enhances the stability and safety of elevator operation.

[0006] To achieve the above purpose, the specific technical solution of the flat layer sensor for high-speed elevators of the utility model is as follows:

[0007] A flat layer sensor for high-speed elevators, including a light shielding plate and a U-shaped main body. Photoelectric induction components are arranged at both ends of the main body. The main body has a slot for inserting a transparent cover plate, and the transparent cover plate covers the photoelectric induction components. The main body is provided with an air jet pipe, one end of the air jet pipe is arranged adjacent to the photoelectric induction components, and the other end of the air jet pipe is communicated with a pneumatic mechanism, which is triggered by the light shielding plate and is used to drive the air jet pipe to jet air towards the photoelectric induction components.

[0008] Preferably, the photoelectric induction components are located on one inner wall of the slot. A window is opened on one inner wall of the slot facing the photoelectric induction components, and the orthographic projection of the photoelectric induction components in the window is within the range of the window.

[0009] Preferably, an annular mounting groove is circumferentially provided around the transparent cover plate. A plurality of the mounting grooves are equidistantly arranged along the length direction of the transparent cover plate. The distance between two adjacent mounting grooves is greater than the width of the photoelectric induction component. An annular sealing strip is arranged in the mounting groove, and the sealing strip is hermetically connected to the inner wall of the slot.

[0010] Preferably, an annular groove for accommodating a dust-proof strip is formed on the inner wall of the slot. The photoelectric induction component is located inside the annular groove, and the dust-proof strip is hermetically connected to the transparent cover plate.

[0011] Preferably, the air pressure mechanism includes an air cylinder fixedly connected to the main body. The air cylinder is communicated with the air injection pipe. A piston is slidably arranged inside the air cylinder. A trigger member is fixedly connected to the piston. The side surface of the light-shielding plate adjacent to the trigger member is a thrust surface, and the minimum distance between the thrust surface and the inner bottom wall of the main body gradually increases from the middle of the thrust surface to both ends along the moving direction of the light-shielding plate.

[0012] Preferably, the trigger member includes a trigger rod perpendicular to the light-shielding plate. The trigger rod is fixedly connected to the piston through a transmission rod, and a spring is arranged between the piston and the end of the air cylinder.

[0013] Preferably, a rotating sleeve is sleeved on the outer periphery of the trigger rod.

[0014] Preferably, an end cover is threadedly connected to one end of the air cylinder adjacent to the trigger rod. The end cover has a through hole for passing through the transmission rod, and the transmission rod is coaxially arranged with the air cylinder.

[0015] The high-speed elevator floor alignment inductor of the present utility model has the following advantages: The transparent cover plate covers the photoelectric induction component to play a protective role, so as to reduce the failure rate of the floor alignment inductor; The transparant cover plate arranged in a plug-in manner is convenient for subsequent maintenance and replacement, improving the convenience of use and maintenance of the floor alignment inductor; The air pressure mechanism can jet air to the transparent cover plate through the air injection pipe to clean the transparent cover plate, reducing the interference to the light propagation and improving the detection accuracy of the floor alignment inductor; The air pressure mechanism is powered by the light-shielding plate without consuming additional electricity, improving the energy-saving performance of the floor alignment inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic connection structure diagram of the floor alignment inductor and the light-shielding plate of the present utility model;

[0017] Figure 2 is a schematic structure diagram of the floor alignment inductor of the present utility model;

[0018] Figure 3 is an exploded structure diagram of the floor alignment inductor of the present utility model;

[0019] Figure 4 is Figure 3 an enlarged view of part A of

[0020] Explanation of the markings in the figure: 1. Light-shielding plate; 2. Main body; 3. Transparent cover plate; 4. Pneumatic mechanism; 201. Photoelectric induction component; 202. Annular groove; 203. Dust-proof strip; 204. Window; 205. Air injection pipe; 206. Slot; 301. Installation groove; 302. Sealing strip; 401. End cover; 402. Air cylinder; 403. Transmission rod; 404. Rotating sleeve; 405. Trigger rod; 406. Spring; 407. Piston. Specific implementation mode

[0021] The following combines the accompanying drawings and embodiments to further describe the specific implementation mode of the present invention. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0022] "Top surface", "bottom", and "bottom surface" are referenced based on the normal use state of the flat layer inductor, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0023] As Figures 1-4 shown, a high-speed elevator flat layer inductor includes a light-shielding plate 1 and a U-shaped main body 2. Photoelectric induction components 201 are arranged at both ends of the main body 2. The main body 2 has a slot 206 for inserting a transparent cover plate 3. The transparent cover plate 3 covers the photoelectric induction components 201. The main body 2 is provided with an air injection pipe 205. One end of the air injection pipe 205 is arranged adjacent to the photoelectric induction components 201. The other end of the air injection pipe 205 is communicated with a pneumatic mechanism 4. The pneumatic mechanism 4 is triggered by the light-shielding plate 1 and is used to drive the air injection pipe 205 to jet air towards the photoelectric induction components 201.

[0024] The main body 2 of the flat floor inductor and the light shielding plate 1 are respectively installed on the car and the elevator shaft. The photoelectric induction component 201 is divided into a light emitting diode and a receiving diode, which are respectively installed at both ends of the main body 2 and are arranged opposite to each other. When the car ascends or descends, the receiving diode receives the light of the light emitting diode in real time. When the light shielding plate 1 moves to the inner side of the U-shaped opening of the main body 2, the intensity of the light received by the receiving diode decreases under the shielding of the light shielding plate 1. At this time, the detection circuit inside the main body 2 determines that the car has reached the flat floor position, and thus sends a signal to stop the elevator from ascending and descending, realizing the normal operation of the elevator; when the flat floor inductor operates, the photoelectric induction component 201 is covered by the transparent cover plate 3. One transparent cover plate 3 is provided at both ends of the main body 2, respectively used to cover the light emitting diode and the receiving diode, and the transparent cover plate 3 plays a role in protecting the photoelectric induction component, so as to reduce the failure rate of the flat floor inductor; the transparent cover plate 3 is inserted into the slot 206. When the transparent cover plate 3 is worn or too dirty to be cleaned, the inserted cover plate 3 is more convenient to take out and replace, improving the convenience of maintaining the flat floor inductor; the air pressure mechanism 4 can spray air onto the transparent cover plate 3 through the air spray pipe 205, reducing the accumulation of dust and impurities on the transparent cover plate 3, reducing the interference with the light propagation, thereby improving the detection accuracy of the flat floor inductor, reducing the probability of false triggering, and improving the safety and comfort of elevator riding; when the light shielding plate 1 passes through the inner side of the U-shaped opening of the main body 2, the light shielding plate 1 triggers the air pressure mechanism 4, so as to charge and discharge the air into the air spray pipe 205 through the air pressure mechanism 4. By the way of triggering the air pressure mechanism 4 with the light shielding plate 1, the air pressure mechanism 4 does not need to provide additional electric energy, thereby reducing the energy consumption of the flat floor inductor.

[0025] A further improvement is that, as Figure 4 shown, the photoelectric induction component 201 is located on one inner wall of the slot 206. A window 204 is opened on the inner wall of the slot 206 opposite to the photoelectric induction component 201. The orthographic projection of the photoelectric induction component 201 in the window 204 is within the range of the window 204. The opening of the window 204 is for the light propagation of the photoelectric induction component 201, and by opening the window 204, the transparent cover plate 3 can be integrally received inside the slot 206 while covering the photoelectric induction component 201, improving the firmness of the installation of the transparent cover plate 3.

[0026] A further improvement is that, as Figure 3As shown in the figure, an annular installation groove 301 is circumferentially arranged around the transparent cover plate 3. A plurality of installation grooves 301 are arranged at equal intervals along the length direction of the transparent cover plate 3. The distance between two adjacent installation grooves 301 is greater than the width of the photoelectric induction component 201. An annular sealing strip 302 is arranged in the installation groove 301, and the sealing strip 302 is hermetically connected to the inner wall of the slot 206. The installation groove 301 is used to accommodate the sealing strip 302 to improve the firmness of the installation of the sealing strip 302. The setting of the sealing strip 302 can, firstly, increase the friction between the transparent cover plate 3 and the slot 206, thereby improving the firmness of the installation of the transparent cover plate 3; secondly, it can play a sealing role to prevent dust from entering the inside of the slot 206 and contaminating the transparent cover plate 3 inside the slot 206. The arrangement of a plurality of slots 206 divides the transparent cover plate 3 into multiple segments. When one end is located at the position of the window 204, this segment of the transparent cover plate 3 plays a role in protecting the photoelectric induction component 201, while the other segments of the transparent cover plate 3 are accommodated inside the slot 206. When the transparent cover plate covering the photoelectric induction component 201 is contaminated, the transparent cover plate accommodated inside the slot 206 can be moved to the photoelectric induction component 201, and the contaminated part of the transparent cover plate 3 can be pulled out to the outside of the slot 206 and broken along the installation groove 301. By dividing one transparent cover plate 3 into multiple segments for use, the service time of the transparent cover plate can be extended, consumption can be reduced, and costs can be lowered.

[0027] A further improvement is that, as Figure 4 shown, an annular groove 202 for accommodating the dust-proof strip 203 is formed on the inner wall of the slot 206. The photoelectric induction component 201 is located inside the annular groove 202, and the dust-proof strip 203 is hermetically connected to the transparent cover plate 3. The annular groove 202 is used to accommodate the dust-proof strip 203 to improve the firmness of the installation of the dust-proof strip 203. Both the dust-proof strip 203 and the sealing strip 302 are rubber strips. The dust-proof strip 203 is used to seal between the transparent cover plates 3, thereby reducing the probability of dust entering between the transparent cover plate 3 and the photoelectric induction component 201 and improving the protection effect.

[0028] A further improvement is that, as Figure 2 and 3As shown in the figure, the air pressure mechanism 4 includes a cylinder 402 fixedly connected to the main body 2. The cylinder 402 is communicated with the air jet pipe 205. A piston 407 is slidably arranged inside the cylinder 402. A trigger member is fixedly connected to the piston 407. The side surface of the light shielding plate 1 adjacent to the trigger member is a thrust surface. The minimum distance between the thrust surface and the inner bottom wall of the main body 2 gradually increases from the middle of the thrust surface to both ends along the moving direction of the light shielding plate 1. The trigger member includes a trigger rod 405 perpendicular to the light shielding plate 1. The trigger rod 405 is fixedly connected to the piston 407 through a transmission rod 403. A spring 406 is arranged between the piston 407 and the end of the cylinder 402. During the operation of the elevator, the main body 2 and the light shielding plate 1 move relatively up and down. When the light shielding plate 1 passes through the inside of the U-shaped opening of the main body 2, the thrust surface of the light shielding plate 1 pushes the trigger rod 405 to move away from the light shielding plate 1, thereby pushing the piston 407 to move inside the cylinder 402. The air inside the cylinder 402 is sprayed onto the transparent cover plate 3 through the air jet pipe 205 by the piston 407, realizing the cleaning of the transparent cover plate 3, reducing the blockage of light propagation, and improving the triggering accuracy of the flat layer inductor. When the light shielding plate 1 moves away from the inside of the U-shaped opening of the main body 2, the piston 407 and the trigger rod 405 are reset by the elasticity of the spring 406.

[0029] A further improvement is that, as Figure 2 and 3 shown, a rotating sleeve 404 is sleeved on the outer periphery of the trigger rod 405. The rotating sleeve 404 can convert the sliding friction between the trigger rod 405 and the light shielding plate 1 into rolling friction, thereby reducing the wear between the trigger rod 405 and the rotating sleeve 404 and improving the stability and reliability of the flat layer inductor.

[0030] A further improvement is that, as Figure 2 and 3 shown, an end cover 401 is threadedly connected to one end of the cylinder 402 adjacent to the trigger rod 405. The end cover 401 has a through hole for passing through the transmission rod 403. The transmission rod 403 is coaxially arranged with the cylinder 402. The setting of the end cover 401 can facilitate the disassembly between the piston 407 and the cylinder 402 and improve the convenience of equipment maintenance and installation.

[0031] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A high-speed elevator leveling inductor, comprising a light-shielding plate (1) and a U-shaped main body (2). Photoelectric induction components (201) are arranged at both ends of the main body (2). It is characterized in that: The main body (2) has a slot (206) for inserting a transparent cover plate (3). The transparent cover plate (3) covers the photoelectric induction components (201). The main body (2) is provided with an air jet pipe (205). One end of the air jet pipe (205) is arranged adjacent to the photoelectric induction components (201). The other end of the air jet pipe (205) is communicated with a pneumatic mechanism (4). The pneumatic mechanism (4) is triggered by the light-shielding plate (1) and is used to drive the air jet pipe (205) to jet air towards the photoelectric induction components (201).

2. The leveling inductor of the high-speed elevator according to claim 1, wherein The photoelectric induction components (201) are located on one inner wall of the slot (206). A window (204) is opened on the inner wall of the slot (206) opposite to the photoelectric induction components (201). The orthographic projection of the photoelectric induction components (201) in the window (204) is within the range of the window (204).

3. The flat floor inductor of the high-speed elevator according to claim 2, wherein An annular installation groove (301) is circumferentially arranged around the transparent cover plate (3). A plurality of the installation grooves (301) are arranged at equal intervals along the length direction of the transparent cover plate (3). The distance between two adjacent installation grooves (301) is greater than the width of the photoelectric induction components (201). An annular sealing strip (302) is arranged in the installation groove (301). The sealing strip (302) is hermetically connected to the inner wall of the slot (206).

4. The leveling inductor for high-speed elevators according to claim 2, characterized in that, An annular groove (202) for accommodating a dust-proof strip (203) is opened on the inner wall of the slot (206). The photoelectric induction components (201) are located inside the annular groove (202). The dust-proof strip (203) is hermetically connected to the transparent cover plate (3).

5. The leveling inductor of the high-speed elevator according to claim 1, wherein The pneumatic mechanism (4) includes a cylinder (402) fixedly connected to the main body (2). The cylinder (402) is communicated with the air jet pipe (205). A piston (407) is slidably arranged inside the cylinder (402). A trigger member is fixedly connected to the piston (407). The side surface of the light-shielding plate (1) adjacent to the trigger member is a thrust surface. The minimum distance between the thrust surface and the inner bottom wall of the main body (2) gradually increases from the middle of the thrust surface to both ends along the moving direction of the light-shielding plate (1).

6. The flat floor inductor for high-speed elevator according to claim 5, characterized in that, The trigger member includes a trigger rod (405) arranged perpendicular to the light-shielding plate (1). The trigger rod (405) is fixedly connected to the piston (407) through a transmission rod (403). A spring (406) is arranged between the piston (407) and the end of the cylinder (402).

7. The flat floor inductor of the high-speed elevator according to claim 6, characterized in that, A rotating sleeve (404) is sleeved on the outer periphery of the trigger rod (405).

8. The leveling sensor for high-speed elevators according to claim 6, characterized in that, An end cover (401) is threadedly connected to one end of the cylinder (402) adjacent to the trigger rod (405). The end cover (401) has a through hole for passing through the transmission rod (403). The transmission rod (403) is coaxially arranged with the cylinder (402).

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