Landing door locking structure for elevator maintenance

Abstract

The utility model relates to the technical field of elevator maintenance, and discloses a landing door locking structure for elevator maintenance, which comprises a first elevator door plate, a sliding rail and a lock catch assembly, a second elevator door plate is arranged on the right side of the first elevator door plate, and an induction motor is arranged on the front side of the first elevator door plate. A triangular key button is arranged on the back of the second elevator door plate, the lock catch assembly is arranged on the front face of the second elevator door plate, and a sliding rail is fixedly connected to the front face of the second elevator door plate. The first elevator door plate and the second elevator door plate are combined through sliding of the sliding supporting blocks outside the sliding rails, the lock hooks are pushed by the arranged first springs to be clamped into the limiting hanging sleeves for locking, loosening of a tightly-matched structure is avoided, it is guaranteed that the landing door can be firmly locked after being closed, and the safety of a user is protected; the situation that the position of the contact switch deviates or the state of the lock hook cannot be accurately detected is avoided, and it is guaranteed that normal starting and running of an elevator are not affected.

Description

Technical Field

[0001] This utility model relates to the field of elevator maintenance technology, and in particular to a landing door locking structure for elevator maintenance. Background Technology

[0002] Elevator maintenance refers to the regular upkeep and maintenance of elevators to ensure their normal operation, reduce malfunctions, prevent accidents, and extend their service life. The importance of elevator maintenance is self-evident, as it involves multiple aspects such as elevator safety performance, malfunction prevention, and extending lifespan. Elevator door locking, a key aspect of maintenance, refers to a measure or device used to lock elevator landing doors during routine maintenance, repairs, or emergencies to ensure personnel safety and the normal operation of the elevator equipment.

[0003] In existing technology, after long-term use, the hook part of the device will rub against the contact point under its own weight. After long-term friction, the hook will wear down. After the hook wears down, its originally tightly fitted structure may loosen, causing the landing door to fail to lock securely after closing. This situation will pose a great safety hazard during elevator operation, as the landing door may open accidentally, causing passengers to fall into the shaft. The wear of the hook may also affect the contact switch that it works with. For example, the contact switch may be misaligned or fail to accurately detect the state of the hook, which will cause the contact switch to malfunction, thus affecting the normal start-up and operation of the elevator. Therefore, it is necessary to improve the landing door locking structure for elevator maintenance to solve the above problems. Utility Model Content

[0004] In order to overcome the safety hazards caused by wear and tear of the door locking structure after long-term use, which affects the normal start-up and operation of the elevator.

[0005] The technical solution of this utility model is as follows: a landing door locking structure for elevator maintenance, including a first elevator door panel, a slide rail and a latch assembly, a second elevator door panel is provided on the right side of the first elevator door panel, an induction motor is provided on the front of the first elevator door panel, a triangular key button is provided on the back of the second elevator door panel, the latch assembly is provided on the front of the second elevator door panel, a slide rail is fixedly connected to the front of the second elevator door panel, a sliding support block is slidably connected inside the slide rail, a support connecting plate is fixedly connected to the outside of the sliding support block, a fixed limiting post is fixedly connected inside the support connecting plate, a rotating bracket is rotatably connected to the outside of the fixed limiting post, a support adjusting rod is fixedly connected to the left side of the rotating bracket, a first spring is fixedly connected between the support adjusting rod and the sliding support block, a limiting sleeve is fixedly connected to the front of the first elevator door panel, and a locking hook is fixedly connected to the bottom of the support adjusting rod, the locking hook being engaged inside the limiting sleeve.

[0006] Preferably, the slide rail has a groove at the corresponding position of the sliding support block, and the sliding support block slides inside the groove.

[0007] Preferably, the support connecting plate has a groove at the corresponding position of the support adjusting rod, and the support adjusting rod rotates inside the groove.

[0008] Preferably, a customer experience contact sensor is fixed to the front of the second elevator door panel, and a sensing connection column is slidably connected inside the contact sensor, which is fixedly connected to the top of the support adjustment rod.

[0009] Preferably, the contact sensor has a groove at the corresponding position of the sensing connection post, and the sensing connection post slides inside the groove.

[0010] Preferably, the locking assembly includes a push bracket, which is fixedly connected to the right side of the rotating bracket. A limit rod is fixedly connected to the bottom of the push bracket, and the limit rod is slidably connected inside the sliding support block. A connecting base plate is fixedly connected to the front of the second elevator door panel. A rotating adjustment shaft is rotatably connected inside the second elevator door panel. An adjustment push rod is fixedly connected to the right side of the rotating adjustment shaft. A limit plate is fixedly connected to the bottom of the adjustment push rod. A fixed bracket is fixedly connected to the left side of the rotating adjustment shaft. A second spring is fixedly connected between the fixed bracket and the connecting base plate.

[0011] Preferably, the sliding support block has a groove at the corresponding position of the limiting support rod, and the limiting support rod slides inside the groove.

[0012] The beneficial effects of this utility model are as follows: Compared with the landing door locking structure where the lock hook wears out over time, the sliding support block slides outside the slide rail, causing the first elevator door panel and the second elevator door panel to merge. The first spring pushes the lock hook to engage inside the limiting sleeve for locking, preventing the tightly fitted structure from loosening. This ensures that the landing door can be firmly locked after closing, protecting the safety of users. It also prevents the contact switch from shifting or failing to accurately detect the state of the lock hook, ensuring that the normal start-up and operation of the elevator are not affected. Thus, it effectively prevents the safety hazards caused by the wear of the lock hook after long-term use of the landing door locking structure, which would affect the normal start-up and operation of the elevator. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the back structure of the present utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the first elevator door panel of this utility model;

[0016] Figure 4This is a partial structural diagram of the first elevator door panel of this utility model;

[0017] Figure 5 This is a schematic diagram of the locking assembly structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. First elevator door panel; 2. Second elevator door panel; 3. Induction motor; 4. Triangular key button; 801. Slide rail; 802. Sliding support block; 803. Support connecting plate; 804. Fixed limit post; 805. Rotating bracket; 806. Support adjusting rod; 807. First spring; 808. Contact sensor; 809. Induction connecting post; 810. Limiting sleeve; 811. Lock hook; 901. Push bracket; 902. Limiting support rod; 903. Connecting base plate; 904. Rotating adjusting shaft; 905. Adjusting push rod; 906. Limiting support plate; 907. Fixed bracket; 908. Second spring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figure 1 - Figure 5This utility model provides an embodiment of a landing door locking structure for elevator maintenance, including a first elevator door panel 1, a slide rail 801, and a latch assembly. A second elevator door panel 2 is located on the right side of the first elevator door panel 1. An induction motor 3 is located on the front of the first elevator door panel 1, and a triangular key button 4 is located on the back of the second elevator door panel 2. The latch assembly is located on the front of the second elevator door panel 2. The slide rail 801 is fixedly connected to the front of the second elevator door panel 2. A sliding support block 802 is slidably connected inside the slide rail 801. A support connecting plate 803 is fixedly connected to the outside of the sliding support block 802. A fixed limiting post 804 is fixedly connected inside the support connecting plate 803. The external rotating connection of the 04 is a rotating bracket 805. A support adjusting rod 806 is fixedly connected to the left side of the rotating bracket 805. A first spring 807 is fixedly connected between the support adjusting rod 806 and the sliding support block 802. A limit sleeve 810 is fixedly connected to the front of the first elevator door panel 1. A locking hook 811 is fixedly connected to the bottom of the support adjusting rod 806. The locking hook 811 is engaged inside the limit sleeve 810. The sliding support block 802 slides inside the slide rail 801. The support adjusting rod 806 provides a limiting guide, causing the locking hook 811 to engage inside the limit sleeve 810. When the locking hook 811 engages inside the limit sleeve 810, the first spring 807 is activated. 07. The locking hook 811 on the push support adjusting rod 806 is limited, so that the induction motor 3 can sense the locking hook 811, providing a prompt for the safe start of the elevator. The slide rail 801 has a groove at the corresponding position of the sliding support block 802. The sliding support block 802 slides inside the groove. The groove in the slide rail 801 corresponding to the position of the sliding support block 802 limits the sliding support block 802 when it slides inside the groove. The support connecting plate 803 has a groove at the corresponding position of the support adjusting rod 806. The support adjusting rod 806 rotates inside the groove. The groove in the support connecting plate 803 corresponding to the position of the support adjusting rod 806 allows the support adjusting rod 806 to rotate. The sliding motion inside the groove is more stable. The front of the second elevator door panel 2 is fixed with a customer experience contact sensor 808. The contact sensor 808 is slidably connected to a sensing connection post 809. The sensing connection post 809 is fixedly connected to the top of the support adjustment rod 806. By sliding the support adjustment rod 806, the sensing connection post 809 is inserted into the contact sensor 808 to realize secondary safety warning. The contact sensor 808 has a groove at the corresponding position of the sensing connection post 809. The sensing connection post 809 slides inside the groove. The groove at the corresponding position of the sensing connection post 809 inside the contact sensor 808 makes the sensing connection post 809 more stable when sliding inside the groove.

[0021] Please see Figure 5In this embodiment, the locking assembly includes a push bracket 901, which is fixedly connected to the right side of the rotating bracket 805. A limit support rod 902 is fixedly connected to the bottom of the push bracket 901, and the limit support rod 902 is slidably connected inside the sliding support block 802. A connecting base plate 903 is fixedly connected to the front of the second elevator door panel 2. A rotating adjustment shaft 904 is rotatably connected inside the second elevator door panel 2. An adjusting push rod 905 is fixedly connected to the right side of the rotating adjustment shaft 904. A limit support plate 906 is fixedly connected to the bottom of the adjusting push rod 905, and a fixing bracket 906 is fixedly connected to the left side of the rotating adjustment shaft 904. 7. A second spring 908 is fixedly connected between the fixed bracket 907 and the connecting base plate 903. By rotating the triangular key button 4, it drives the rotating adjustment shaft 904 to rotate inside the second elevator door panel 2. The rotation of the rotating adjustment shaft 904 causes the adjusting push rod 905 to push the limiting support rod 902, which in turn drives the bracket 901 to move upward. The sliding support block 802 has a groove at the corresponding position of the limiting support rod 902. The limiting support rod 902 slides inside the groove. The groove inside the sliding support block 802 corresponding to the position of the limiting support rod 902 limits the limiting support rod 902 when it slides inside the groove.

[0022] During operation, when the elevator is closed, the sliding support block 802 slides inside the slide rail 801. The support adjusting rod 806 provides limiting guidance, causing the locking hook 811 to engage inside the limiting sleeve 810. When the locking hook 811 engages inside the limiting sleeve 810, the first spring 807 pushes the locking hook 811 on the support adjusting rod 806 to achieve the limiting action. This allows the induction motor 3 to sense the locking hook 811, providing a warning for the safe start of the elevator. The sliding of the support adjusting rod 806 also allows the sensing connecting column 8... 09 is inserted into the contact sensor 808 to achieve a secondary safety warning. When maintenance is required, the triangular key button 4 is turned to drive the rotating adjustment shaft 904 to rotate inside the second elevator door panel 2. The rotation of the rotating adjustment shaft 904 causes the adjusting push rod 905 to push the limit support rod 902, which in turn drives the push bracket 901 to move upward. The upward movement of the push bracket 901 and the rotation of the rotating bracket 805 outside the fixed limit column 804 work together to push the locking hook 811 on the support adjustment rod 806 to disengage from the limit sleeve 810 and unlock.

[0023] Through the above steps, the sliding support block 802 slides outside the slide rail 801, allowing it to slide to a suitable position until the first elevator door panel 1 and the second elevator door panel 2 merge. The first spring 807 pushes the locking hook 811 to engage with the limit sleeve 810 to lock, thus solving the problem of safety hazards caused by wear of the lock buckle after long-term use of the landing door locking structure, which affects the normal start-up and operation of the elevator.

Claims

1. A landing door locking structure for elevator maintenance, comprising a first elevator door panel (1), characterized in that: The utility model also includes slide rail (801) and lock catch assembly, the right side of first elevator door board (1) is provided with second elevator door board (2), the front of first elevator door board (1) is provided with induction motor (3), the back of second elevator door board (2) is provided with triangular key button (4), lock catch assembly is set up in the front of second elevator door board (2), the front of second elevator door board (2) is fixedly connected with slide rail (801), the inside slide of slide rail (801) is connected with sliding support block (802), the outside fixed connection of sliding support block (802) has support connecting plate (803), the inside fixed connection of support connecting plate (803) has fixed limit post (804), the outside rotation of fixed limit post (804) is connected with rotating support (805), the left side of rotating support (805) is fixedly connected with support adjusting rod (806), first spring (807) is fixedly connected between support adjusting rod (806) and sliding support block (802), the front of first elevator door board (1) is fixedly connected with limit hanging sleeve (810), the bottom of support adjusting rod (806) is fixedly connected with lock hook (811), and lock hook (811) is clamped in the inside of limit hanging sleeve (810).

2. The landing door locking structure for elevator maintenance according to claim 1, characterized in that: Slide rail (801) is provided with a sliding groove at the corresponding position of sliding support block (802), and sliding support block (802) slides in the sliding groove.

3. The landing door locking structure for elevator maintenance according to claim 1, characterized in that: Support connecting plate (803) is provided with a sliding groove at the corresponding position of support adjusting rod (806), and support adjusting rod (806) rotates in the sliding groove.

4. The landing door locking structure for elevator maintenance according to claim 1, characterized in that: The front of second elevator door board (2) is fixedly connected with a customer experience contact sensor (808), and the inside of contact sensor (808) is slidably connected with a sensing connecting column (809) fixedly connected to the top of support adjusting rod (806).

5. The landing door locking structure for elevator maintenance according to claim 4, characterized in that: Contact sensor (808) is provided with a sliding groove at the corresponding position of sensing connecting column (809), and sensing connecting column (809) slides in the sliding groove.

6. The landing door locking structure for elevator maintenance according to claim 1, wherein: The lock catch assembly includes a push bracket (901) fixedly connected to the right side of the rotating support (805), a limit support rod (902) fixedly connected to the bottom of the push bracket (901) and slidably connected to the inside of the sliding support block (802), a connecting bottom plate (903) fixedly connected to the front of the second elevator door board (2), a rotating adjusting shaft (904) rotatably connected to the inside of the second elevator door board (2), an adjusting push rod (905) fixedly connected to the right side of the rotating adjusting shaft (904), a limit support plate (906) fixedly connected to the bottom of the adjusting push rod (905), a fixed support (907) fixedly connected to the left side of the rotating adjusting shaft (904), and a second spring (908) fixedly connected between the fixed support (907) and the connecting bottom plate (903).

7. The landing door locking structure for elevator maintenance according to claim 6, characterized in that: Sliding support block (802) is provided with a sliding groove at the corresponding position of limit support rod (902), and limit support rod (902) slides in the sliding groove.

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