Rotary type door opening and closing mechanism for elevator hall door
By using a pivot-type linkage device for the car door and landing door, combined with the design of door impact wheels and contoured rubber blocks, the impact problem during linkage between the car door and landing door in shaftless elevators is solved, achieving smooth linkage and equipment protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING WANGYUE ELEVATOR TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-31
AI Technical Summary
In shaftless elevators, the moving car doors and hall doors generate significant impact forces when linked, resulting in loud noise and equipment damage.
The car door and hall door adopt a pivot type. Through the cooperation of linkage magnets and steel sliding plates, the impact force is reduced by the design of door impact wheels and contoured rubber blocks. The inclined surface of the contoured rubber blocks slowly attracts the doors, and the linkage magnets and steel sliding plates slowly attract the doors. Combined with the flanges on the columns, the hall door is prevented from intruding into the car space.
This reduces the impact noise between the car door and the hall door, avoids equipment damage, and ensures smooth elevator operation.
Smart Images
Figure CN224577822U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of home elevators, specifically to a pivot-type car door and hall door opening and closing mechanism. Background Technology
[0002] Generally, elevator doors include car doors and landing doors. Car doors are installed on the elevator car and move up and down with it, providing protection for people inside the car. Landing doors are installed on the building at the elevator entrance and are used to prevent people from falling into the elevator shaft. Both car doors and landing doors are movable, meaning they can be center-opening, side-opening, or straight-opening. Car doors are driven by a door operator, while landing doors are driven by the car doors through a linkage mechanism.
[0003] However, for elevators without shafts or in situations with narrow shafts, movable car doors and landing doors cannot be installed. This is because movable car doors and landing doors require concealed space when opened, thus taking up a large area and being unsuitable for the aforementioned narrow shaft conditions; additionally, elevators without shafts cannot have movable landing doors because they lack shaft walls.
[0004] To address the aforementioned issues, Chinese Patent Publication No. CN111675071B discloses a rotary shaft type automatic interlocking opening and closing system for car and hall doors. Through the cooperation of an electromagnetic chuck and an armature, it achieves the linkage between the car and hall doors of a manual elevator, thus solving the problem of automatic interlocking opening and closing. However, at the moment of linkage, the car and hall doors experience a significant collision impact. This impact not only generates considerable noise but also causes damage to the car and hall doors, severely affecting their service life. Utility Model Content
[0005] To address the aforementioned problem of significant impact force generated during the linkage of the manual elevator car door and landing door, this invention proposes a pivot-type car door and landing door opening and closing mechanism. This mechanism includes a car, pivot-type car door and landing door, a drive device for opening and closing the car door, and a linkage device. The linkage device drives the landing door to move synchronously during the opening and closing of the car door. The linkage device includes a linkage magnet and a steel sliding plate. The linkage magnet is installed on the surface of the car door near the landing door, and the steel sliding plate is disposed on the surface of the landing door near the car door. During the opening of the car door, the linkage magnet attracts the steel sliding plate and slides along its length. A door impact wheel is also installed on the surface of the car door near the landing door, and a contoured rubber block is installed on the landing door corresponding to the door impact wheel.
[0006] A further feature of this invention is that the end of the conforming rubber block near the steel plate is set as an inclined surface, and the end of the inclined surface near the steel plate is set lower than the end of the inclined surface and away from the steel plate.
[0007] A further feature of this invention is that: each end of the hall door is provided with a column, and the hall door is hinged to one of the columns; a flange is provided on the column, and the flange is used to limit the rotation of the hall door and prevent the hall door from intruding into the moving space of the car.
[0008] A further feature of this invention is that a push rod is hinged inside the car, the drive device is connected to the door operator shaft of the push rod to drive the push rod to rotate, and a slider is rotatably connected to the end of the push rod away from the drive device, the slider being slidably connected to the car door.
[0009] A further feature of this invention is that the car door is rotatably connected inside the car via a door operator shaft, and the drive device is connected to the door operator shaft to drive the car door to rotate.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. The linkage device enables the car door to drive the hall door to open and close in unison. The combination of the door impact wheel and the contoured rubber block can reduce the impact force between the car door and the hall door, thereby reducing impact noise and preventing the car door and hall door from making direct contact at the moment of linkage, which would cause impact damage to the car door and the hall door.
[0012] 2. By setting an inclined surface on the contoured rubber block, the distance between the car door and the hall door can be smoothly and gradually reduced during the linkage process, so that the linkage magnet can slowly attract the steel sliding plate.
[0013] 3. By installing flanges on the columns, it is possible to prevent the hall doors from encroaching into the moving space of the car after they are closed, thus hindering the operation of the elevator. Attached Figure Description
[0014] Figure 1 A schematic diagram of the structure in the closed state of Embodiment 1 is shown.
[0015] Figure 2 A schematic diagram of the structure in the open state of Embodiment 1 is shown.
[0016] Figure 3 A magnified view of a portion at point A is shown.
[0017] Figure 4 A schematic diagram of the structure in the fully open state of Embodiment 1 is shown.
[0018] Figure 5 A schematic diagram of the structure in the closed state of Embodiment 2 is shown.
[0019] Figure 6 A schematic diagram of the structure in the open state of Embodiment 2 is shown.
[0020] Figure 7 A magnified view of point B is shown.
[0021] Figure 8 A schematic diagram of the structure in the fully open state of Embodiment 2 is shown.
[0022] Reference numerals: 1. Car door; 11. Door bumper; 12. Detection magnet; 2. Hall door; 21. Contour block; 3. Linkage device; 31. Linkage magnet; 32. Steel sliding plate; 4. Column; 41. Flange; 5. Push rod; 51. Slider. Detailed Implementation
[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0024] Example 1
[0025] This utility model proposes a pivot-type car door and hall door opening and closing mechanism, including a car, a pivot-type car door 1 and hall door 2, a drive device for driving the opening and closing of the car door 1, and a linkage device 3. The linkage device 3 is used to drive the hall door 2 to move synchronously during the opening and closing of the car door 1.
[0026] The car door 1 is hinged to the car body, and the drive device is a motor installed on the top of the car body. The drive device is used to drive the car door 1 to rotate around the hinge axis. The hall door 2 is installed at the location of two columns 4, which are fixedly connected to the building. That is, the top and bottom of the columns 4 are fixedly connected to the roof and the ground, respectively. The hall door 2 is hinged to one of the columns 4.
[0027] The linkage device 3 includes a linkage magnet 31 and a steel sliding plate 32. The linkage magnet 31 is bolted to the surface of the car door 1 near the hall door 2. The steel sliding plate 32 is mounted on the surface of the hall door 2 near the car door 1. When the drive device drives the car door 1 to rotate until it contacts the hall door 2, the linkage magnet 31 can contact the steel sliding plate 32, and the two will generate an attraction force, so that the movement of the car door 1 can be transmitted to the hall door 2, causing the hall door 2 to move synchronously. At the same time, during the opening process of the car door 1, the linkage magnet 31 can also slide along the length of the steel sliding plate 32.
[0028] A door impact wheel 11 is rotatably connected to the side surface of the car door 1 near the hall door 2, and the axis of the door impact wheel 11 is set vertically. A contoured rubber block 21 is connected to the side surface of the hall door 2 near the car door 1 by a snap fastener. The contoured rubber block 21 has a certain elasticity and is set to correspond to the door impact wheel 11. That is, during the process of the car door 1 rotating to open, the door impact wheel 11 will first contact the contoured rubber block 21. As the opening angle changes, the door impact wheel 11 will gradually roll over the surface of the contoured rubber block 21. When the door impact wheel 11 passes the contoured rubber block 21, the linkage magnet 31 can just attract the steel sliding plate 32.
[0029] The surface of the contoured rubber block 21 near the steel slide plate 32 is set as an inclined surface, and the end of the inclined surface near the steel slide plate 32 is set lower than the end of the inclined surface away from the steel slide plate 32. In this way, during the opening of the car door 1, the door impact wheel 11 will gradually roll along its inclined surface, thereby making the gap between the door impact wheel 11 and the hall door 2 smaller and smaller. Furthermore, the gap between the car door 1 and the hall door 2 will also become smaller and smaller, so that the car door 1 can smoothly and gradually reduce the gap between itself and the hall door 2, allowing the linkage magnet 31 and the steel slide plate 32 to slowly approach and attract each other.
[0030] Each column 4 is also integrated with a flange 41. The flanges 41 on both columns 4 are set towards the hall door 2. The distance between the two flanges 41 is less than the width of the hall door 2. That is, when the hall door 2 rotates in the closing direction, the flanges 41 can limit the rotation angle of the hall door 2 to prevent the hall door 2 from rotating into the moving space of the car and obstructing the operation of the elevator.
[0031] It should be noted that a door closer is also connected to hall door 2. The door closer is installed on the door frame of hall door 2. The door closer can automatically close hall door 2 without external force, without manual closing. That is, after car door 1 is disengaged from linkage, hall door 2 can automatically close.
[0032] Inside the car, a push rod 5 is hinged to the door operator shaft. The output shaft of the drive device is connected to the door operator shaft connected to the push rod 5 to drive the push rod 5 to rotate. The end of the push rod 5 away from the drive device is rotatably connected to a slider 51. The slider 51 is slidably connected inside the car door 1. It should be noted that a clearance groove is provided on the side surface of the car door 1 away from the hall door 2 to avoid the movement of the push rod 5.
[0033] refer to Figure 1 , 2 4 represents the closed state, the open state, and the fully open state, respectively. The drive device drives the push rod 5 to push the car door 1 to open. Then, the car door 1 drives the hall door 2 to move synchronously through the linkage device 3, so as to achieve the purpose of linkage opening.
[0034] A detection magnet 12 is also installed on the car door 1, and a magnetic induction switch is installed on the car top corresponding to the detection magnet 12. The function of detecting whether the car door is open or closed is realized by the cooperation of the detection magnet 12 and the magnetic induction switch.
[0035] Example 2
[0036] The only difference between this embodiment and embodiment 1 is that the car door 1 is rotatably connected to the car through the door operator shaft, and the output shaft of the drive device is connected to the door operator shaft to drive the car door 1 to rotate.
[0037] In summary, this utility model, through the linkage device 3, enables the car door 1 to drive the hall door 2 to open and close in a coordinated manner. The cooperation between the door impact wheel 11 and the contoured rubber block 21 reduces the impact force between the car door 1 and the hall door 2, thereby reducing impact noise and preventing direct contact between the car door 1 and the hall door 2 during linkage, which could cause impact damage. By providing an inclined surface on the contoured rubber block 21, the distance between the car door 1 and the hall door 2 can be smoothly and gradually reduced during linkage, allowing the linkage magnet 31 to slowly engage with the steel sliding plate 32. By providing a flange 41 on the column 4, the hall door 2 can be prevented from encroaching into the moving space of the car after closing, thus preventing obstruction of elevator operation.
[0038] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0039] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0040] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0042] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A pivot-type car door and hall door opening and closing mechanism, comprising a car, a pivot-type car door (1) and hall door (2), a driving device for driving the opening and closing of the car door (1), and a linkage device (3), wherein the linkage device (3) is used to drive the hall door (2) to move synchronously during the opening and closing of the car door (1), the linkage device (3) includes a linkage magnet (31) and a steel plate (32), the linkage magnet (31) is installed on the side surface of the car door (1) near the hall door (2), the steel plate (32) is disposed on the side surface of the hall door (2) near the car door (1), during the opening of the car door (1), the linkage magnet (31) attracts the steel plate (32) and slides along the length direction of the steel plate (32), characterized in that: A door bumper (11) is also installed on the side surface of the car door (1) near the hall door (2), and a contoured rubber block (21) is installed on the hall door (2) corresponding to the door bumper (11).
2. The pivot-type car door hall door opening and closing mechanism according to claim 1, characterized by: The end of the conforming rubber block near the steel slide plate (32) is set as an inclined surface, and the end of the inclined surface near the steel slide plate (32) is set as the end that is lower than the inclined surface and away from the steel slide plate (32).
3. The pivot door hall door opening and closing mechanism according to claim 1, characterized in that: The hall door (2) is provided with columns (4) at both ends, and the hall door (2) is hinged to one of the columns (4); the column (4) is provided with a flange (41), which is used to limit the rotation of the hall door (2) and prevent the hall door (2) from intruding into the moving space of the car.
4. The pivot door hall door opening and closing mechanism according to any one of claims 1 to 3, characterized in that: A push rod (5) is hinged inside the car. The drive device is connected to the door operator shaft of the push rod (5) to drive the push rod (5) to rotate. A slider (51) is rotatably connected to the end of the push rod (5) away from the drive device. The slider (51) is slidably connected to the car door (1).
5. The pivot door hall door opening and closing mechanism according to any one of claims 1 to 3, characterized in that: The car door (1) is rotatably connected to the car body via a door operator shaft, and the drive device is connected to the door operator shaft to drive the car door (1) to rotate.