A non-contact key switch for elevator

Abstract

The present invention relates to the technical field of elevator buttons, and in particular to a non-contact button switch for an elevator, comprising a door card and a control box, wherein the output end of the door card is connected to a receiving end signal of a reading module, the output end of the reading module is connected to a receiving end signal of an identification module, the output end of the identification module is connected to a receiving end signal of a switch module, and a partition plate, a mounting block and a normally closed contact are fixedly installed inside the control box respectively, and when the motor inside the control box is started, the gear is driven to rotate through a rotating shaft, and when the gear rotates, the rack rod is driven to move downward, and when the rack rod moves downward, the second mounting plate is driven to move downward, and when the second mounting plate moves downward, the compression rod is driven to move downward and compress a spring, and when the compression rod moves downward, the normally closed contact and the movable contact are disconnected, and the movable contact is driven to be movably connected with the normally open contact, thereby completing the operation, thereby achieving convenient and safe elevator riding.

Description

Technical Field

[0001] This invention relates to the field of elevator button technology, specifically to a non-contact elevator button switch. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building. Its car moves on at least two rigid tracks that are perpendicular to the horizontal plane or have an angle of inclination of less than 15° to the vertical. It is a fixed lifting device that serves designated floors. Currently, the operating buttons of elevators in public places are all contact-type, meaning that a person must touch the button switch to perform operations such as setting the floor, going up or down, and opening or closing the door.

[0003] Since elevators are mainly used in public places, the touch-sensitive elevator buttons are frequently touched and used by different people, which can easily spread various viruses, bacteria and parasites. Especially now that the coronavirus has not been completely eradicated, or during some epidemic infectious diseases or in the specific environment of hospitals, it is very easy to cause cross-infection of various infectious diseases, which in turn leads to the spread of infectious diseases. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a contactless elevator button switch, which offers advantages such as making elevator use more convenient and preventing the spread of various viruses, thus solving the problem that most existing elevator buttons are contact-based.

[0005] To achieve the objectives of this invention, a non-contact push-button switch for elevators is disclosed, comprising a door card and a control box. The control box is a hollow square box structure installed inside the elevator. Inside, there is a mounting block, a normally open contact, and a normally closed contact. The normally closed contact is fixed to the center of the bottom of the control box's inner cavity. The bottom of the mounting block is fixed to the center of the top of the control box's inner cavity, and a normally open contact is fixedly installed on its top. Square holes for a rack rod to pass through are provided on both sides of the top of the control box. The top of the rack rod is connected to the bottom sides of a second mounting plate. A motor is installed inside the control box, and a gear that meshes with the rack rod is externally fitted onto the rotating shaft at the motor's output end. A through hole for a compression rod to pass through is provided in the center of the top of the control box. The top of the compression rod is connected to the center of the bottom of the second mounting plate, and a first mounting plate is connected to its bottom. The upper and lower surfaces of the first mounting plate have square holes for a compression rod to pass through. The control box is equipped with a movable contact that can contact the normally open and normally closed contacts. A rotating shaft is movably mounted inside the control box, and a gear is movably mounted on the outer side of the rotating shaft. A spring is fixedly mounted on the top of the spring, and a second mounting plate is fixedly mounted on the top of the second mounting plate. An identification plate is fixedly mounted on the top of the second mounting plate. A compression rod and a rack are fixedly mounted on the bottom of the second mounting plate, and a first mounting plate is fixedly mounted on the bottom of the compression rod. A movable contact is fixedly mounted on the outer side of the first mounting plate. An identification plate is fixedly mounted on the top of the second mounting plate. The identification plate contains a reading module, an identification module, and a switch module. The output end of the door card is connected to the receiving end of the reading module, the output end of the reading module is connected to the receiving end of the identification module, and the output end of the identification module is connected to the receiving end of the switch module. The switch module is connected to a motor.

[0006] A spring fitted onto the outside of the compression rod is provided between the second mounting plate and the upper surface of the control box.

[0007] The control box has two L-shaped partitions on both sides of its inner cavity, with the two ends of the partitions connected to the top and bottom of the inner cavity of the control box, respectively.

[0008] The beneficial effects of this invention are as follows:

[0009] 1. This elevator's contactless button switch works by having a door card approach the recognition panel when using the elevator. The reading module inside the card first reads the card, and then the recognition module identifies the card. The information inside the card can directly confirm the floor and send a signal to start the motor inside the control box. If the recognition module cannot recognize the door card, it will not send a signal to start the motor inside the control box, thus preventing the spread of various viruses.

[0010] 2. The elevator's non-contact button switch, when started by the motor inside the control box, drives the gear to rotate via the rotating shaft. The rotation of the gear drives the rack rod to move downwards, which in turn drives the second mounting plate to move downwards. The downward movement of the second mounting plate drives the compression rod to move downwards, compressing the spring. As the compression rod moves downwards, it causes the normally closed contact to disconnect from the moving contact, and then causes the moving contact to connect with the normally open contact, thus completing the operation and achieving convenient and safe elevator use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the process of the present invention;

[0012] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0013] In the diagram: 1-Door card, 2-Reading module, 3-Identification module, 4-Switch module, 5-Control box, 6-Partition plate, 7-Mounting block, 8-Normally open contact, 9-Normally closed contact, 10-Rotating shaft, 11-Gear, 12-Spring, 13-Compression rod, 14-First mounting plate, 15-Moving contact, 16-Second mounting plate, 17-Rack and pinion, 18-Identification plate. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1-2This invention discloses a non-contact push-button switch for elevators, comprising a door card 1 and a control box 5. The control box 5 is a hollow square box structure disposed inside the elevator. Inside, there is a mounting block 7, a normally open contact 8, and a normally closed contact 9. The normally closed contact 9 is fixed to the center of the bottom of the inner cavity of the control box 5. The bottom of the mounting block 7 is fixed to the center of the top of the inner cavity of the control box 5, and the normally open contact 8 is fixedly mounted on its top. Square holes for a rack rod 17 to pass through are provided on both sides of the top of the control box 5. The top of the rack rod 17 is connected to the bottom sides of a second mounting plate 16. A motor is disposed inside the control box 5, and the rotating shaft 10 at the output end of the motor is externally connected to the rack rod 17. 7. Matching gear 11; The top center of the control box 5 is provided with a through hole for the compression rod 13 to pass through. The top of the compression rod 13 is connected to the bottom center of the second mounting plate 16, and its bottom is connected to the first mounting plate 14. Movable contacts 15 are installed on both sides of the upper and lower surfaces of the first mounting plate 14. The movable contacts 15 can contact the normally open contact 8 and normally closed contact 9; A rotating shaft 10 is movably installed inside the control box 5, and a gear 11 is movably installed on the outside of the rotating shaft 10. A spring 12 is fixedly installed on the top of the control box 5, and a second mounting plate 16 is fixedly installed on the top of the spring 12. An identification device is fixedly installed on the top of the second mounting plate 16. The elevator is constructed with a first mounting plate 14 and a second mounting plate 16. A compression rod 13 and a rack 17 are fixedly mounted on the bottom of the second mounting plate 16. A movable contact 15 is fixedly mounted on the outer side of the first mounting plate 14. An identification plate 18 is fixedly mounted on the top of the second mounting plate 16. The identification plate 18 contains a reading module 2, an identification module 3, and a switch module 4. The output end of the door card 1 is connected to the receiving end of the reading module 2. The output end of the reading module 2 is connected to the receiving end of the identification module 3. The output end of the identification module 3 is connected to the receiving end of the switch module 4. The switch module 4 is connected to the motor. This elevator is non-contact. The push-button switch works by having the door card 1 brought close to the identification board 18 when using the elevator. The reading module 2 inside the identification card first reads the door card 1, and then the identification module 3 identifies the door card 1. The information inside the door card 1 can directly confirm the floor and send a signal to start the motor inside the control box 5. If the identification module 3 cannot identify the door card 1, it will not send a signal to start the motor inside the control box 5, thereby preventing the spread of various viruses. In this embodiment, the reading module 2, the identification module 3, and the switch module 4 can be access control card readers. Their working principle and the working principle of the door card 1 are existing technologies and are not the main technical solution of this case, so they will not be described in detail.

[0016] A spring 12, fitted around the compression rod 13, is provided between the second mounting plate 16 and the upper surface of the control box 5. By setting the spring 12, when the motor rotates and drives the gear 11 to rotate, thereby driving the rack 17, the second mounting plate 16 and the telescopic rod 13 to move downward, the spring 12 can be compressed when the movable contact 15 contacts the normally open contact 8. After the user enters the elevator, the spring 12, due to its reset action, drives the telescopic rod 13 to move upward, and the movable contact 15 contacts the normally closed contact 9, automatically closing the elevator.

[0017] The control box 5 has two L-shaped partitions 6 on both sides of its inner cavity. The two ends of the partitions 6 are connected to the top and bottom of the inner cavity of the control box 5, respectively. By setting the partitions 6, the driving mechanism such as the motor can be separated from each contact, ensuring that the equipment does not interfere with each other and operates normally.

[0018] The working principle and usage process of this invention are as follows: When using the elevator, the door card 1 is brought close to the identification plate 18. The reading module 2 inside the identification card 18 will first read the door card 1, and then the identification module 3 will identify the door card. The information inside the door card 1 can directly confirm the floor and send a signal to start the motor inside the control box 5. If the identification module 3 cannot identify the door card 1, it will not send a signal to start the motor inside the control box 5. When the motor starts, it will drive the gear 11 to rotate through the rotating shaft 10. When the gear 11 rotates, it will drive the rack 17 to move downward. When the rack 17 moves downward, it will drive the second mounting plate 16 to move downward. When the second mounting plate 16 moves downward, it will drive the compression rod 13 to move downward and compress the spring 12. When the compression rod 13 moves downward, it will cause the normally closed contact 9 to disconnect from the movable contact 15, and cause the movable contact 15 to move and connect with the normally open contact 8, thereby completing the operation.

[0019] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-contact key switch for an elevator, comprising a door card (1) and a control box (5), characterized in that: The control box (5) is a hollow square box structure arranged in the elevator, and is provided with a mounting block (7), a normally open contact (8) and a normally closed contact (9) inside the control box (5). The normally closed contact (9) is fixed in the middle of the bottom of the inner cavity of the control box (5). The bottom of the mounting block (7) is fixed in the middle of the top of the inner cavity of the control box (5), and the normally open contact (8) is fixedly installed on the top. Square holes for the rack rod (17) to pass through are provided on both sides of the top of the control box (5). The top of the rack rod (17) is connected to both sides of the bottom of the second mounting plate (16). A motor is provided in the control box (5), and the rotating shaft (10) at the output end of the motor is externally sleeved and connected. A gear (11) is provided that meshes with the rack rod (17); a through hole for the compression rod (13) to pass through is provided in the middle of the top of the control box (5); the top of the compression rod (13) is connected to the middle of the bottom of the second mounting plate (16); the bottom is connected to the first mounting plate (14); movable contacts (15) are installed on both sides of the upper surface and the lower surface of the first mounting plate (14); the movable contacts (15) can contact the normally open contact (8) and the normally closed contact (9); a rotating shaft (10) is movably installed inside the control box (5); a gear (11) is movably installed outside the rotating shaft (10); the control box A spring (12) is fixedly mounted on the top of the spring (12), a second mounting plate (16) is fixedly mounted on the top of the spring (12), an identification plate (18) is fixedly mounted on the top of the second mounting plate (16), a compression rod (13) and a rack rod (17) are fixedly mounted on the bottom of the second mounting plate (16), a first mounting plate (14) is fixedly mounted on the bottom of the compression rod (13), and a movable contact (15) is fixedly mounted on the outer side of the first mounting plate (14); an identification plate (18) is fixedly mounted on the top of the second mounting plate (16), and a reading module (2), an identification module (3) and a switch module are arranged inside the identification plate (18). (4), the output end of the door card (1) is signal-connected to the receiving end of the reading module (2), the output end of the reading module (2) is signal-connected to the receiving end of the identification module (3), the output end of the identification module (3) is signal-connected to the receiving end of the switch module (4), and the switch module (4) is connected to the motor; a spring (12) sleeved on the outside of the compression rod (13) is provided between the second mounting plate (16) and the upper surface of the control box (5); two "L"-shaped partitions (6) are provided on both sides of the inner cavity of the control box (5), and the two ends of the partition (6) are respectively connected to the top and bottom of the inner cavity of the control box (5).

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