Elevator landing door device capable of preventing landing door from falling off

Abstract

The invention discloses an elevator landing door device capable of preventing landing doors from falling off, and relates to the technical field of elevator landing doors. The elevator landing door comprises an upper sill plate and an elevator landing door body, an upper set of limiting guide strips and a lower set of limiting guide strips are fixedly installed on the inner wall of the upper sill plate, a bent guide part is arranged in the middle of the upper sill plate, a right-angle limiting part is arranged at the bottom end of the upper sill plate, and first change gears are attached to the surfaces of the limiting guide strips. According to the elevator landing door, the first change gear is located on the surface of the bending guide part and slides along the bending guide part, so that the elevator landing door body moves on the upper sill plate, the landing door is prevented from derailing and falling off in the running or unforeseen circumstances by attaching the anti-falling limiting assembly to the limiting guide strip, and the vertical position of the second change gear is adjusted by adjusting the pressure applying assembly; and the second change gear is tightly attached to the right-angle limiting part of the upper sill plate, so that the upper sill plate is clamped and pressed through the second change gear and the first change gear, and the running stability of the elevator landing door body is further enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator landing doors, and in particular to an elevator landing door device for preventing the landing door from falling off. Background Art

[0002] Elevator floor doors are an important part of the elevator system. The main function of floor doors is to ensure the safety of passengers when entering and exiting the car and prevent passengers from falling into the elevator shaft. Floor doors can isolate the elevator shaft from the floors, prevent debris from falling into the shaft, and ensure the normal operation of the elevator. Some floor doors have fire protection functions, which can prevent or delay the passage of hot gases or flames in the event of a fire, and play the role of separating fire partitions.

[0003] Traditional landing doors can fall off during opening and closing, or in unexpected situations, due to structural design limitations. This not only affects passengers' access but can also pose a safety hazard to passengers. Especially in high-rise buildings, the consequences of such a door falling off can be disastrous.

[0004] For this reason, an elevator floor door device is proposed which prevents the floor door from falling off. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems raised in the above background technology, and to provide an elevator floor door device that prevents the floor door from falling off.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: The cam is secured to the floor by a lever, which is secured to the floor by a lever, which is secured to the floor by a lever, and has a lever that is secured to the floor by a lever, so that the lever can be locked when the cam is unlocked.

[0007] Furthermore, a plurality of mounting through grooves are provided on the surface of the upper sill plate, so as to fix the upper sill plate in the elevator shaft via fixing pieces.

[0008] Furthermore, the anti-slip limit assembly includes a limit mounting shaft that is movably inserted in the first hanging wheel, and a limit wheel is fixedly installed on one end of the limit mounting shaft, and the limit wheel is fit with two sets of limit guide strips on the inner wall of the upper sill plate, and the T-shaped hanger is movably sleeved on the surface of the limit mounting shaft, and an external thread is provided on the surface of the other end of the limit mounting shaft, and a first nut is threadedly sleeved on the surface of the limit mounting shaft located on the external thread, and the installation position of the T-shaped hanger is limited by the first nut.

[0009] Furthermore, the connecting assembly includes a hanging plate fixedly installed on the end face of the T-shaped hanger, and multiple groups of first threaded columns are fixedly installed on the upper surface of the hanging plate, the connecting plate and the hanging plate are plugged into each other, and the connecting plate and the first threaded column are sleeved, and the top threaded sleeve of the first threaded column is provided with a second nut to fix the connection between the hanging plate and the connecting plate, and the top surface of the elevator floor door body is fixedly installed with a second threaded column, the second threaded column is plugged into the connecting plate, and the surface threaded sleeve of the second threaded column is provided with a third nut, and the elevator floor door body is fixed to the bottom surface of the connecting plate through the third nut.

[0010] Furthermore, the adjusting pressure assembly includes a threaded rod movably inserted in the through hole, and the bottom end of the threaded rod is fixedly mounted with a Z-shaped mounting bracket, the second hanging wheel is rotatably mounted on the end face of the Z-shaped mounting bracket, and the surface threaded sleeve of the threaded rod is provided with a fourth nut.

[0011] Furthermore, an arc-shaped groove is provided on the surface of the first hanging wheel, and the arc-shaped groove on the surface of the first hanging wheel is located on the top surface of the bending guide portion.

[0012] Furthermore, the first hanging wheel and the second hanging wheel are both made of rubber material, and the surfaces of the first hanging wheel and the second hanging wheel are provided with anti-slip patterns.

[0013] Furthermore, the cross-sections of the hanging plate and the connecting plate are both L-shaped, and the connecting plate and the hanging plate are installed in a plug-in engagement manner.

[0014] The beneficial effects of the present invention are as follows: The upper sill plate is used as the basic structure, and two sets of upper and lower limit guide strips are installed on its inner wall. The elevator floor door body is fixed by a connecting component and a T-shaped hanger. The first hanging wheel is located on the surface of the bent guide part and slides along the bent guide part to realize the movement of the elevator floor door body on the upper sill plate. The anti-slip limit component is fitted with the limit guide strip to prevent the floor door from derailing and falling off during operation or accidents. The vertical position of the second hanging wheel is adjusted by adjusting the pressure component so that the second hanging wheel is tightly fitted with the right-angle limit part of the upper sill plate, and then the upper sill plate is clamped and pressurized by the second hanging wheel and the first hanging wheel, thereby further enhancing the stability of the operation of the elevator floor door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This invention Figure 1 A magnified view of part A; Figure 3 It is a partial side view of the present invention; Figure 4 is a side view of the present invention; Figure 5 It is a partial schematic diagram of the present invention; Figure 6 Schematic diagram of the first hanging wheel of the present invention; Figure 7 This invention Figure 5 Exploded diagram; Figure 8 It is a schematic diagram of the upper sill plate of the present invention; Figure markings: 1. Upper sill plate; 11. Mounting groove; 12. Limiting guide strip; 13. Bending guide portion; 14. Right-angle limiting portion; 2. First hanging pulley; 3. Anti-slip limiting assembly; 301. Limiting mounting shaft; 302. Limiting wheel; 303. External thread; 304. First nut; 4. T-shaped hanging bracket; 41. Through hole; 5. Connecting assembly; 501. Hanging plate; 502. First threaded column; 503. Second nut; 504. Connecting plate; 505. Second threaded column; 506. Third nut; 6. Elevator floor door body; 7. Adjusting pressure assembly; 701. Threaded rod; 702. Fourth nut; 703. Z-shaped mounting bracket; 8. Second hanging pulley. DETAILED DESCRIPTION

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0018] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0019] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figures 1 to 8 As shown, an elevator landing door device for preventing a landing door from falling off comprises an upper sill plate 1 and an elevator landing door body 6. Two sets of upper and lower limiting guide strips 12 are fixedly installed on the inner wall of the upper sill plate 1. A bending guide portion 13 is provided in the middle of the upper sill plate 1. A right-angle limiting portion 14 is provided at the bottom end of the upper sill plate 1. The surface of the limiting guide strip 12 is fitted with a first hanging wheel 2. An anti-slip limiting component 3 is rotatably inserted in the first hanging wheel 2, and a T-shaped hanger 4 is rotatably sleeved on the surface of the anti-slip limiting component 3. One end of the disengaging limit assembly 3 is located on the side of the limit guide strip 12, and a connecting assembly 5 is fixedly installed on the surface of the T-shaped hanger 4. The elevator floor door body 6 is fixedly installed on the T-shaped hanger 4 through the connecting assembly 5. A through hole 41 is opened on the surface of the T-shaped hanger 4, and an adjusting pressure assembly 7 is arranged in the through hole 41. The second hanging wheel 8 is rotatably installed on the surface of the adjusting pressure assembly 7. The vertical position of the second hanging wheel 8 is adjusted by the adjusting pressure assembly 7 to fit tightly with the surface of the right-angle limiting portion 14. More specifically, the upper sill plate 1 is used as the basic structure, and two sets of upper and lower limit guide strips 12 are installed on its inner wall. The elevator floor door body 6 is fixed by the connecting component 5 and the T-shaped hanger 4. The first hanging wheel 2 is located on the surface of the bent guide part 13 and slides along the bent guide part 13 to realize the movement of the elevator floor door body 6 on the upper sill plate 1. The anti-slip limit component 3 is fitted with the limit guide strip 12 to prevent the floor door from derailing and falling off during operation or accidents. The vertical position of the second hanging wheel 8 is adjusted by adjusting the pressure component 7 so that the second hanging wheel 8 is tightly fitted with the right-angle limit part 14 of the upper sill plate 1, and then the upper sill plate 1 is clamped and pressurized by the second hanging wheel 8 and the first hanging wheel 2, thereby further enhancing the stability of the operation of the elevator floor door body 6.

[0021] The upper sill plate 1 is provided with a plurality of mounting slots 11 for securing the upper sill plate 1 within the elevator shaft via fasteners. More specifically, these slots 11 allow the entire device to be securely mounted within the elevator shaft using fasteners such as bolts. The design of these slots 11 provides flexibility, facilitating adjustment of the device's installation position while ensuring stability.

[0022] The anti-slip limit assembly 3 includes a limit mounting shaft 301 that is movably inserted into the first hanging wheel 2, and a limit wheel 302 is fixedly installed at one end of the limit mounting shaft 301, and the limit wheel 302 is in contact with the two sets of limit guide strips 12 on the inner wall of the upper sill plate 1. The T-shaped hanger 4 is movably sleeved on the surface of the limit mounting shaft 301, and an external thread 303 is provided on the surface of the other end of the limit mounting shaft 301, and a first nut 304 is threadedly sleeved on the surface of the external thread 303 of the limit mounting shaft 301, and the installation position of the T-shaped hanger 4 is limited by the first nut 304. More specifically, the limiting mounting shaft 301 is inserted into the first hanging wheel 2, and the limiting wheel 302 is fitted with the limiting guide strip 12 to prevent the elevator floor door body 6 from being laterally offset or falling off during operation. The external thread 303 on the surface of the limiting mounting shaft 301 is limited by the first nut 304 to ensure that the position of the limiting wheel 302 is fixed and the installation connection to the T-shaped hanger 4 is ensured to prevent the limiting wheel 302 from loosening or shifting.

[0023] The connecting assembly 5 includes a hanging plate 501 fixedly mounted on the end face of the T-shaped hanger 4, and a plurality of first threaded columns 502 are fixedly mounted on the upper surface of the hanging plate 501, the connecting plate 504 is plugged into the hanging plate 501, and the connecting plate 504 is sleeved with the first threaded column 502, and the top end of the first threaded column 502 is threadedly sleeved with a second nut 503 to fix the connection between the hanging plate 501 and the connecting plate 504, and a second threaded column 505 is fixedly mounted on the top surface of the elevator floor door body 6, the second threaded column 505 is plugged into the connecting plate 504, and the surface of the second threaded column 505 is threadedly sleeved with a third nut 506, and the elevator floor door body 6 is fixedly mounted on the bottom surface of the connecting plate 504 through the third nut 506. More specifically, the elevator floor door body 6 is connected to the T-shaped hanger 4 by plugging and engaging the hanging plate 501 and the connecting plate 504. The first threaded column 502 and the second nut 503 are used to fix the hanging plate 501 and the connecting plate 504 to ensure the installation firmness of the elevator floor door body 6. The second threaded column 505 and the third nut 506 further fix the elevator floor door body 6 to prevent it from loosening during operation.

[0024] The pressure-adjusting assembly 7 includes a threaded rod 701 that is movably inserted into the through-hole 41. A Z-shaped mounting bracket 703 is fixedly mounted to the bottom end of the threaded rod 701. The second pulley 8 is rotatably mounted on the end surface of the Z-shaped mounting bracket 703. A fourth nut 702 is threadedly mounted on the surface of the threaded rod 701. More specifically, the vertical position of the threaded rod 701 is adjusted by rotating the fourth nut 702, ensuring that the second pulley 8 is tightly aligned with the right-angled stopper 14 of the upper sill plate 1, thereby enhancing the stability of the elevator door body 6.

[0025] An arcuate groove is formed on the surface of the first sheave 2, and the arcuate groove on the surface of the first sheave 2 is located on the top surface of the bent guide portion 13. More specifically, the arcuate groove on the surface of the first sheave 2 cooperates with the top surface of the bent guide portion 13 to ensure that the elevator landing door body 6 always maintains a stable trajectory during operation, preventing the elevator landing door body 6 from deflecting or getting stuck during operation.

[0026] Both the first and second pulleys 2, 8 are made of rubber, and have anti-slip patterns on their surfaces. More specifically, the rubber material allows the elastic properties of the rubber to absorb vibrations and shocks during operation, while the anti-slip patterns increase the friction between the first and second pulleys 2, 8, and the guide components, further enhancing the stability and safety of landing door operation.

[0027] The cross-sections of the hanging plate 501 and the connecting plate 504 are both L-shaped, and the connecting plate 504 and the hanging plate 501 are installed in a plug-and-engage manner. More specifically, the cross-sections of the hanging plate 501 and the connecting plate 504 are both L-shaped, and the installation of the elevator landing door body 6 is achieved through plug-and-engagement. This not only improves the convenience of installation, but also strengthens the connection strength between the elevator landing door body 6 and the T-shaped hanger 4, ensuring that it will not loosen or fall off during operation.

[0028] In summary: the upper sill plate 1 is used as the basic structure, and two sets of upper and lower limit guide strips 12 are installed on its inner wall. The elevator floor door body 6 is fixed by the connecting component 5 and the T-shaped hanger 4. The first hanging wheel 2 is located on the surface of the bending guide part 13 and slides along the bending guide part 13 to realize the movement of the elevator floor door body 6 on the upper sill plate 1. The anti-slip limit component 3 is fitted with the limit guide strip 12 to prevent the floor door from derailing and falling off during operation or accidents. The vertical position of the second hanging wheel 8 is adjusted by adjusting the pressure component 7 so that the second hanging wheel 8 is tightly fitted with the right-angle limit part 14 of the upper sill plate 1, and then the upper sill plate 1 is clamped and pressurized by the second hanging wheel 8 and the first hanging wheel 2, thereby further enhancing the stability of the operation of the elevator floor door body 6.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator landing door device for preventing the landing door from falling off, characterized in that: The invention comprises an upper sill plate (1) and an elevator floor door body (6), wherein the inner wall of the upper sill plate (1) is fixedly mounted with two sets of upper and lower limiting guide strips (12), a bending guide portion (13) is provided in the middle of the upper sill plate (1), and a right-angle limiting portion (14) is provided at the bottom end of the upper sill plate (1), a first hanging wheel (2) is attached to the surface of the limiting guide strip (12), an anti-slip limiting component (3) is rotatably inserted in the first hanging wheel (2), and a T-shaped hanging bracket (4) is rotatably sleeved on the surface of the anti-slip limiting component (3), and one side of the anti-slip limiting component (3) is provided with a T-shaped hanging bracket (4). The end is located on the side of the limiting guide strip (12), the surface of the T-shaped hanger (4) is fixedly installed with a connecting component (5), the elevator floor door body (6) is fixedly installed on the T-shaped hanger (4) via the connecting component (5), the surface of the T-shaped hanger (4) is provided with a through hole (41), the through hole (41) is provided with an adjusting pressure component (7), and the surface of the adjusting pressure component (7) is rotatably installed with a second hanging wheel (8), and the vertical position of the second hanging wheel (8) is adjusted by the adjusting pressure component (7) to be in close contact with the surface of the right-angle limiting portion (14).

2. The elevator landing door device for preventing the landing door from falling off according to claim 1, characterized in that: The surface of the upper sill plate (1) is provided with a plurality of groups of mounting through grooves (11) for fixing the upper sill plate (1) in the elevator shaft via fixing members.

3. The elevator landing door device for preventing landing doors from falling off according to claim 1, characterized in that: The anti-drop limit assembly (3) comprises a limit installation shaft (301) movably plugged into the first hanging wheel (2), and a limit wheel (302) is fixedly installed on one end of the limit installation shaft (301), and the limit wheel (302) is fitted with two sets of limit guide strips (12) on the inner wall of the upper sill plate (1), and the T-shaped hanger (4) is movably sleeved on the surface of the limit installation shaft (301), and the other end surface of the limit installation shaft (301) is provided with an external thread (303), and the surface of the limit installation shaft (301) located on the external thread (303) is threadedly sleeved with a first nut (304), and the installation position of the T-shaped hanger (4) is limited by the first nut (304).

4. The elevator landing door device for preventing landing doors from falling off according to claim 1, characterized in that: The connecting assembly (5) includes a hanging plate (501) fixedly mounted on the end surface of the T-shaped hanging bracket (4), and a plurality of first threaded columns (502) are fixedly mounted on the upper surface of the hanging plate (501), the connecting plate (504) and the hanging plate (501) are plugged into each other, and the connecting plate (504) and the first threaded columns (502) are sleeved, and the top end of the first threaded column (502) is threadedly sleeved with a second nut (503) to fix the hanging plate (501) and the connecting plate (504), and the top surface of the elevator floor door body (6) is fixedly mounted with a second threaded column (505), the second threaded column (505) is plugged into the connecting plate (504), and the surface of the second threaded column (505) is threadedly sleeved with a third nut (506), and the elevator floor door body (6) is fixedly mounted on the bottom surface of the connecting plate (504) via the third nut (506).

5. The elevator landing door device for preventing landing doors from falling off according to claim 1, characterized in that: The regulating pressure assembly (7) comprises a threaded rod (701) movably inserted into the through hole (41), and a Z-shaped mounting frame (703) is fixedly mounted on the bottom end of the threaded rod (701), and the second hanging wheel (8) is rotatably mounted on the end surface of the Z-shaped mounting frame (703), and a fourth nut (702) is provided on the surface of the threaded rod (701) through a threaded sleeve.

6. The elevator landing door device for preventing landing doors from falling off according to claim 1, characterized in that: An arc-shaped groove is provided on the surface of the first hanging wheel (2), and the arc-shaped groove on the surface of the first hanging wheel (2) is located on the top surface of the bending guide portion (13).

7. The elevator landing door device for preventing landing doors from falling off according to claim 1, characterized in that: The first hanging wheel (2) and the second hanging wheel (8) are both made of rubber material, and the surfaces of the first hanging wheel (2) and the second hanging wheel (8) are provided with anti-slip patterns.

8. The elevator landing door device for preventing landing doors from falling off according to claim 4, characterized in that: The cross-sections of the hanging plate (501) and the connecting plate (504) are both L-shaped, and the connecting plate (504) and the hanging plate (501) are plug-engaged and installed.

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