Landing door lock for elevator

Abstract

The utility model belongs to the technical field of locks, and discloses a landing door lock for an elevator, which comprises a lock tongue mounted on a landing door and a mounting plate mounted on the elevator, the lock tongue is provided with a lock opening, the mounting plate is provided with a mounting frame, the mounting frame is rotatably provided with a rotating shaft, the rotating shaft is fixedly provided with an automatic lock hook and a manual lock hook, and the automatic lock hook and the manual lock hook are fixedly connected through a hinge. The automatic lock hook and the manual lock hook are both provided with inclined planes, the installation plate is provided with a push-pull lock and a shifting piece limiting switch, the output end of the push-pull lock is provided with a push-pull shaft in a hinged mode, the automatic lock hook is provided with an inclined groove, the push-pull shaft is located in the inclined groove, and the signal input end of the shifting piece limiting switch is arranged on the lower side of the spring bolt. The limiting ends of the automatic lock hook and the manual lock hook are matched with the lock opening in position, and the upper end and the lower end of the manual lock hook protrude out of the mounting frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks, and in particular relates to a landing door lock for an elevator. Background Art

[0002] Elevator floor door locks are important components of the elevator door system. They are used to ensure that the elevator floor doors remain locked when closed, preventing passengers from falling into the elevator shaft or shearing accidents due to doors not being closed tightly.

[0003] However, most of the current floor door locks are fully automatic, and cannot be quickly manually unlocked in the event of a malfunction. Furthermore, there is no position sensing structure, which causes the device to start running when there is misalignment and not completely locked, which may cause an accident. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the present utility model is to provide a floor door lock for an elevator.

[0005] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0006] A floor door lock for an elevator comprises a lock tongue installed on the floor door and a mounting plate installed on the elevator, the lock tongue being provided with a lock mouth, the mounting plate being provided with a mounting frame, the mounting frame being rotatably provided with a rotating shaft, the rotating shaft being fixedly provided with an automatic lock hook and a manual lock hook, the automatic lock hook and the manual lock hook being both provided with inclined surfaces, the mounting plate being provided with a push-pull lock and a paddle limit switch, the output end of the push-pull lock being hingedly provided with a push-pull shaft, the automatic lock hook being provided with an inclined groove, the push-pull shaft being located in the inclined groove, the signal input end of the paddle limit switch being placed on the lower side of the lock tongue, the limit end positions of the automatic lock hook and the manual lock hook matching the lock mouth, and the upper and lower ends of the manual lock hook protruding from the mounting frame.

[0007] It is further defined that the mounting plate is installed with a protective shell, and the protective shell is provided with limit slots corresponding to the upper and lower ends of the manual lock hook. With this design, the protective shell plays a role of dust protection, and the limit slots serve the purpose of limiting the movement range of the manual lock hook.

[0008] It is further defined that the installation frame is installed with an aviation plug male, and this design realizes reliable transmission of power and signals.

[0009] It is further defined that the push-pull lock is matched with an unlocking shaft, and the unlocking shaft is equipped with a paddle that matches the push-pull lock. Such a design changes the state of the lock from a locked state to an unlocked state by operating the unlocking shaft.

[0010] It is further defined that the installation frame is provided with a guide notch, such a design ensures that the position of the lock tongue does not deviate.

[0011] The beneficial effects of adopting the utility model are:

[0012] With the structural design of the utility model, the operation of the push-pull lock can drive the automatic lock hook to move, thereby achieving the purpose of unlocking, and the intelligence is good;

[0013] The structural design of the utility model can realize manual unlocking under the effect of the manual lock hook, which is suitable for emergency occasions;

[0014] With the structural design of the utility model, the position of the lock tongue is monitored under the effect of the paddle limit switch, so as to ensure the accurate position of the lock tongue and thus ensure the safety of the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0016] Figure 1 This is a structural diagram of an embodiment of an elevator landing door lock according to the present utility model;

[0017] Figure 2 This is a structural diagram of an embodiment of an elevator landing door lock without a protective shell;

[0018] Figure 3 This is a structural diagram of an embodiment of an elevator landing door lock without a protective shell and a partial installation frame;

[0019] The main component symbols are described as follows:

[0020] Lock tongue 1; mounting plate 2; lock port 3; mounting frame 4; rotating shaft 5; automatic lock hook 6; manual lock hook 7; inclined surface 71; push-pull lock 8; paddle limit switch 9; push-pull shaft 10; inclined slot 11; protective shell 12; limit notch 13; male aviation plug 14; unlocking shaft 15; paddle 16; guide notch 17. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 3As shown, the utility model is a floor door lock for an elevator, comprising a lock tongue 1 installed on the floor door and a mounting plate 2 installed on the elevator, the lock tongue 1 is provided with a lock mouth 3, the mounting plate 2 is provided with a mounting frame 4, the mounting frame 4 is rotatably provided with a rotating shaft 5, the rotating shaft 5 is fixedly provided with an automatic lock hook 6 and a manual lock hook 7, both the automatic lock hook 6 and the manual lock hook 7 are provided with an inclined surface 71, the mounting plate 2 is provided with a push-pull lock 8 and a paddle limit switch 9, the output end of the push-pull lock 8 is hingedly provided with a push-pull shaft 10, the automatic lock hook 6 is provided with an inclined groove 11, the push-pull shaft 10 is located in the inclined groove 11, the signal input end of the paddle limit switch 9 is placed on the lower side of the lock tongue 1, the limit end positions of the automatic lock hook 6 and the manual lock hook 7 match the lock mouth 3, and the upper and lower ends of the manual lock hook 7 protrude from the mounting frame 4.

[0023] In this embodiment, when an elevator landing door lock is used, when the landing door descends, the lock tongue 1 installed thereon enters the installation frame 4 and contacts the upper inclined surfaces 71 of the automatic lock hook 6 and the manual lock hook 7, causing the automatic lock hook 6 and the manual lock hook 7 to shift until the hook ends of the automatic lock hook 6 and the manual lock hook 7 enter the lock hole 3, thereby completing the locking of the lock tongue 1 and completing the function of the lock;

[0024] After locking, the push-pull lock 8 can be operated and moved forward, so that the automatic lock hook 6 will not be forced to tilt back, thereby preventing the lock tongue 1 from falling out and ensuring safety;

[0025] After locking, pulling the manual lock hook 7 can force the shaft 5 to rotate, so that the hook ends of the automatic lock hook 6 and the manual lock hook 7 are separated from the lock mouth 3, thereby achieving the purpose of unlocking;

[0026] During the downward movement of the lock tongue 1, the bottom side will contact the signal input end of the paddle limit switch 9 and drive it to move together, so the paddle limit switch 9 can receive the position information of the lock tongue 1 in real time. After the lock tongue 1 is in place, the paddle limit switch 9 can also feedback information to the terminal to ensure the accurate position of the lock tongue 1 and the safety of operation.

[0027] Preferably, the mounting plate 2 is installed with a protective shell 12, and the protective shell 12 is provided with limiting slots 13 corresponding to the upper and lower ends of the manual lock hook 7. With this design, the protective shell 12 plays a role in dust protection, and the limiting slots 13 play the purpose of limiting the movement range of the manual lock hook 7. In fact, protection and limiting measures can also be considered according to specific circumstances.

[0028] Preferably, the mounting frame 4 is installed with an aviation male plug 14. This design enables reliable transmission of power and signals. In fact, the connection structure can also be considered according to specific circumstances.

[0029] Preferably, the push-pull lock 8 is equipped with an unlocking shaft 15, and the unlocking shaft 15 is equipped with a paddle 16 that matches the push-pull lock 8. With this design, the state of the lock can be changed from a locked state to an unlocked state by operating the unlocking shaft 15. In fact, the structure of the push-pull lock 8 can also be considered according to specific circumstances.

[0030] Preferably, the mounting frame 4 is provided with a guide slot 17. This design ensures that the position of the lock tongue 1 does not deviate. In fact, the position, specifications and dimensions of the guide slot 17 can also be considered according to specific circumstances.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A landing door lock for an elevator, comprising a lock tongue (1) mounted on the landing door and a mounting plate (2) mounted on the elevator, characterized in that: The lock tongue (1) is provided with a lock port (3), the mounting plate (2) is provided with a mounting frame (4), the mounting frame (4) is rotatably provided with a rotating shaft (5), the rotating shaft (5) is fixedly provided with an automatic lock hook (6) and a manual lock hook (7), the automatic lock hook (6) and the manual lock hook (7) are both provided with an inclined surface (71), the mounting plate (2) is provided with a push-pull lock (8) and a paddle limit switch (9), the output end of the push-pull lock (8) is hingedly provided with a push-pull shaft (10), the automatic lock hook (6) is provided with an inclined groove (11), the push-pull shaft (10) is located in the inclined groove (11), the signal input end of the paddle limit switch (9) is placed on the lower side of the lock tongue (1), the limit end positions of the automatic lock hook (6) and the manual lock hook (7) match the lock port (3), and the upper and lower ends of the manual lock hook (7) protrude from the mounting frame (4).

2. The elevator landing door lock according to claim 1, characterized in that: The mounting plate (2) is mounted with a protective shell (12), and the protective shell (12) is provided with limiting notches (13) whose positions correspond to the upper and lower ends of the manual locking hook (7).

3. The elevator landing door lock according to claim 2, characterized in that: The installation frame (4) is installed with an aviation male plug (14).

4. The elevator landing door lock according to claim 3, characterized in that: The push-pull lock (8) is matched with an unlocking shaft (15), and the unlocking shaft (15) is equipped with a paddle (16) matched with the push-pull lock (8).

5. The elevator landing door lock according to claim 4, characterized in that: The installation frame (4) is provided with a guide notch (17).

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