Connecting rod opening structure for duplex workstation landing door
By installing a linkage assembly on the inside of the landing door, and using the drive assembly on the car to push the landing door to unlock and open, the problem of the landing door of the duplex workstation cannot be standardized, and multi-position docking and simplified unlocking process are achieved.
Patent Information
- Application Number
- CN202520594896.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-01
AI Technical Summary
The existing duplex workstation floor door opening structure requires independent power and control signals, making it impossible to achieve standardized floor door usage.
The system employs a linkage assembly, which connects to the drive assembly on the car to push the landing door open and close, meeting the docking requirements at different heights.
The standardization of landing doors has been achieved, enabling docking at multiple locations within the same floor, reducing the difficulty of unlocking and improving the standardization of landing door usage.
Smart Images

Figure CN223836868U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireproof floor door technology, specifically to a linkage opening structure for a duplex workstation floor door. Background Technology
[0002] To facilitate the transfer and receipt of materials between floors, hospitals typically install workstations. Workstations are devices within the transfer system used for sending and receiving items. A duplex workstation refers to a device with two layers of conveyors, used to receive transfer boxes from other departments or to send transfer boxes from one department to other departments.
[0003] To facilitate the movement of materials between floors, similar to passenger elevators, hospitals use dedicated shafts for cargo cars to move between floors. These shafts are equipped with protective landing doors, which also need to perform both unlocking and opening actions. Current passenger elevators generally use non-powered landing doors. When the car descends, a door cutter on the car lowers to provide power for the landing door to open. The first action of the door cutter is unlocking, and the second is converting the descent power into the power to open the landing door. Unlike passenger elevators, cargo elevators used for duplex workstations need to stop at two different heights on the same floor to dock with the workstations separately. This renders the original door cutter and landing door opening structure completely inadequate for their purpose.
[0004] The existing workstation landing door opening technology uses non-standardized isolation doors with independent power at the opening. The opening and closing of the landing door is achieved through motors and control signals. Each opening needs to be equipped with an isolation door, and each isolation door requires a motor transmission signal and a door opening and closing signal, which is not conducive to the standardization of landing door use. Utility Model Content
[0005] To address the shortcomings of existing technologies, a linkage opening structure for duplex workstation landing doors is proposed. This solves the problem in the aforementioned background technology where non-standardized isolation doors with independent power are used for openings, and the opening and closing of landing doors are achieved through motors and control signals, which is not conducive to the standardization of landing door usage.
[0006] To achieve the above objectives, the present invention proposes the following technologies:
[0007] A linkage opening structure for a duplex workstation landing door includes a linkage assembly located on the landing door. A car is disposed inside the landing door, and a drive assembly is installed on the car. The drive assembly moves horizontally to push the linkage assembly, thereby opening the landing door.
[0008] Furthermore, the linkage assembly includes a stop that is movably connected to the landing door, and the driving assembly pushes the stop to move, thereby driving the landing door to unlock and open.
[0009] Furthermore, the linkage assembly also includes guide rods, the two ends of which are hinged to the landing door and the edge respectively, and two guide rods are arranged parallel to each other in the vertical direction.
[0010] Furthermore, a reset spring is provided below the guide rod for pulling the guide rod back to its original position, and the two ends of the reset spring are fixed to the guide rod and the landing door, respectively.
[0011] Furthermore, the linkage assembly also includes a rocker arm hinged to the side guard. The movement of the side guard drives the rocker arm to push the landing door lock to unlock and open the landing door.
[0012] Furthermore, a guide groove is provided on the edge, the guide groove is set along the movement trajectory of the edge, and a guide post is installed in the guide groove, the guide post being fixed on the landing door.
[0013] Furthermore, the driving component includes a push rod, which can move horizontally relative to the car, thereby abutting against the side guard and driving the side guard to move.
[0014] Furthermore, the drive assembly also includes a support frame fixedly connected to the car, a slide rail is mounted on the support frame, and a slider is provided on the push rod that is slidably connected to the slide rail.
[0015] Furthermore, a drive belt is also installed on the support frame, the slide rail is located inside the drive belt, and a connecting seat for connecting the push rod is fixed on the drive belt.
[0016] Furthermore, an open-end sensor and a close-end sensor are respectively provided on both sides of the support frame, and a baffle is fixed on the connecting seat. The baffle cooperates with the open-end sensor and the close-end sensor to control the movement position of the push rod.
[0017] Compared with the prior art, the comprehensive effects brought about by this utility model include:
[0018] In this application, a linkage assembly is set inside the landing door 1. The landing door can be unlocked and opened from the inside by the drive assembly on the car abutting against and pushing the linkage assembly. With the linkage assembly set, when the car loaded with goods is raised and lowered in the hoistway to the height corresponding to the landing door, the drive assembly on the car can push the linkage assembly from any position to open the landing door. This satisfies the correspondence with the transmission machine corresponding to different height positions of the duplex workstation outside the landing door, realizes the opening of the door in multiple positions on the same floor, and is conducive to the standardization of landing doors. Attached Figure Description
[0019] Figure 1 This is a schematic diagram showing the docking of the elevator car and the lower level of the duplex workstation in an embodiment of this utility model;
[0020] Figure 2 for Figure 1 Schematic diagram of a local structure in the middle;
[0021] Figure 3 This is a schematic diagram of the connecting rod assembly structure according to an embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram of the drive component structure according to an embodiment of the present utility model;
[0023] Figure 5 This is a top view of the drive component in an embodiment of the present invention.
[0024] Legend: 1. Landing door; 2. Car; 3. Side rail; 4. Guide rod; 5. Reset spring; 6. Locking linkage; 7. Landing door switch lock; 8. Guide groove; 9. Push rod; 10. Support frame; 11. Drive belt; 12. Connecting seat; 13. Door open position sensor; 14. Door close position sensor; 15. Baffle. Detailed Implementation
[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] In this document, terms such as “up,” “down,” “left,” “right,” and “top” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to 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.
[0027] like Figures 1 to 5 As shown, a linkage opening structure for a duplex workstation landing door includes a linkage assembly located on the landing door 1. A car 2 is provided inside the landing door 1, and a drive assembly is installed on the car 2. The drive assembly moves horizontally to push the linkage assembly and thus drive the landing door 1 to open.
[0028] By setting a linkage assembly located inside the landing door 1, the landing door 1 can be unlocked and opened from the inside by the drive assembly on the car 2 abutting against and pushing the linkage assembly. With the linkage assembly set, when the car 2 loaded with goods rises and falls in the hoistway to the height corresponding to the landing door 1, the drive assembly on the car 2 can push the linkage assembly from any position to open the landing door 1, thereby meeting the requirements of the transmission machine corresponding to different height positions of the duplex workstation outside the landing door 1, realizing the opening of the door at multiple positions within the same floor, which is conducive to the standardization of the landing door 1.
[0029] In the linkage opening structure for the duplex workstation floor door of this embodiment, the linkage assembly includes a stop 3 that is movably connected to the floor door 1. The driving assembly pushes the stop 3 to move, thereby driving the floor door 1 to unlock and open.
[0030] Specifically, the height of the guard edge 3 matches the height of the door 1. The guard edge 3 is located in the middle of the door 1, near the edge of the right half of the door 1. This setting enables the drive component to push the guard edge 3 from different heights and further push the door 1 to unlock and open, reducing the difficulty of opening the door 1 from the inside and facilitating docking with the transmission machines of each floor of the duplex workstation.
[0031] In the linkage opening structure for the duplex workstation floor door of this embodiment, the linkage assembly further includes a guide rod 4. The two ends of the guide rod 4 are respectively hinged to the floor door 1 and the edge 3. Two guide rods 4 are arranged parallel to each other in the vertical direction.
[0032] Two guide rods 4 are respectively hinged to the upper and lower sides of the landing door 1. When the stop edge 3 is pushed by the drive component, the two guide rods 4 rotate synchronously to guide the stop edge 3 to move obliquely upward and push the switch lock on the landing door 1 to unlock, and further drive the landing door 1 to open. The setting of the guide rods 4 makes the stop edge 3 remain in a vertical state when moving, so as to facilitate cooperation with the drive component.
[0033] In the linkage opening structure for the duplex workstation floor door of this embodiment, a reset spring 5 for pulling the guide rod 4 back to its original position is provided below the guide rod 4. The two ends of the reset spring 5 are respectively fixed to the guide rod 4 and the floor door 1.
[0034] Specifically, the reset spring 5 is set between the guide rod 4 and the stop 3 at the angle. The top of the reset spring 5 is connected to the middle of the guide rod 4. With the above setting, when the floor door 1 is closed, the stop 3 loses the push of the driving component. The reset spring 5, which is in a stretched state, rebounds and drives the guide rod 4 to rotate downward, thereby pushing the stop 3 to reset, so that the switch lock can be engaged to close the floor door 1.
[0035] In the linkage opening structure for the duplex workstation floor door of this embodiment, the linkage assembly also includes a rocker arm 6 hinged to the side rail 3. The movement of the side rail 3 drives the rocker arm 6 to push the floor door switch lock 7 to unlock and open the floor door 1.
[0036] Specifically, the rocker arm 6 and the guide rod 4 located on the upper side are arranged opposite each other vertically. The other end of the rocker arm 6 is provided with a sleeve hole and is sleeved on the end of the landing door switch lock 7. When the stop edge 3 is pushed by the drive component, the rocker arm 6 is driven to move obliquely upward, thereby pushing the landing door switch lock 7 to open, and then further pushing the landing door 1 to open.
[0037] Compared to the side guard 3 directly pushing the landing door switch lock 7, the rocker arm 6 can be set to unlock the landing door switch lock 7 from below, reducing the difficulty of unlocking and making the landing door 1 open more effectively.
[0038] In the linkage opening structure for the duplex workstation floor door of this embodiment, a guide groove 8 is provided on the baffle 3. The guide groove 8 is set along the movement trajectory of the baffle 3. A guide post is installed in the guide groove 8 and the guide post is fixed on the floor door 1.
[0039] Matching the movement trajectory of the edge 3 guided by the guide rod 4, the guide groove 8 is inclined. When the edge 3 is pushed, the guide column slides relative to the guide groove 8 until it moves to the bottom of the guide groove 8 and abuts against the edge 3. Then the edge 3 pushes the floor door 1 to open through the guide column.
[0040] The guide groove 8 and guide post are set to limit the movement of the stop edge 3, so as to avoid excessive relative displacement between the stop edge 3 and the landing door 1, thereby ensuring that the stop edge 3 can be unlocked smoothly and drive the landing door 1 to move.
[0041] In the linkage opening structure for the duplex workstation landing door of this embodiment, the driving component includes a push rod 9, which can move relative to the car 2 in the horizontal direction, thereby abutting against the stop 3 and driving the stop 3 to move.
[0042] The push rod 9 moves horizontally to abut against the edge 3 and pushes it to move, thereby unlocking and opening the landing door 1. Since the edge 3 is rotatably connected to the landing door 1 through the guide rod 4, when the push rod 9 abuts against the edge 3, the edge 3 moves upward and slides relative to the push rod 9. Then, after being limited by the guide column, the edge 3 moves horizontally.
[0043] In the linkage opening structure for the duplex workstation floor door of this embodiment, the driving component also includes a support frame 10 fixedly connected to the car 2, a slide rail is installed on the support frame 10, and a slider is provided on the push rod 9 that is slidably connected to the slide rail.
[0044] By setting up a support frame 10 to provide support and guidance for the push rod 9, specifically, the support frame 10 is set below the transmission machine on the car 2, the slide rail is located on the side of the support frame 10 near the landing door 1, and the slider is located between the push rod 9 and the slide rail. Through the above arrangement, the push rod 9 can slide stably in the horizontal direction, thereby pushing the stop 3 to open the landing door 1.
[0045] Preferably, the slider is located at one end of the push rod 9, and the push rod 9 has a certain length. When the slider slides to the end of the slide rail, it can provide the push rod 9 with sufficient extension length to push the floor door 1 open.
[0046] In the linkage opening structure for the duplex workstation floor door of this embodiment, a drive belt 11 is also installed on the support frame 10, the slide rail is located inside the drive belt 11, and a connecting seat 12 for connecting the push rod 9 is fixed on the drive belt 11.
[0047] Specifically, the pulley on one side of the belt 11 is mounted on the support frame 10, and the pulley on the other side is mounted on the drive motor. The drive motor is fixedly connected to the support frame 10. The drive motor drives the belt 11 to rotate, which in turn drives the connecting seat 12 and the push rod 9 on the belt to slide along the slide rail.
[0048] In the linkage opening structure for the duplex workstation floor door of this embodiment, the support frame 10 is provided with an opening position sensor 13 and a closing position sensor 14 on both sides respectively, and a baffle 15 is fixed on the connecting seat 12. The baffle 15 cooperates with the opening position sensor 13 and the closing position sensor 14 to control the movement position of the push rod 9.
[0049] Specifically, the door opening sensor 13 and the door closing sensor 14 are respectively connected to the drive motor. The connecting seat 12 is located on the belt below the drive belt 11. The baffle 15 is fixed below the connecting seat 12. When the belt drives the connecting seat 12 and the push rod 9 to move, the baffle 15 moves synchronously and blocks the door opening sensor 13 or the door closing sensor 14, thereby controlling the drive motor to open or close and preventing the push rod 9 from moving beyond its stroke.
[0050] Preferably, the distance between the door opening sensor 13 and the door closing sensor 14 is matched with the movement stroke of the door 1 switch.
[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "rotation", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0052] Although embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A linkage opening structure for a duplex workstation floor door, characterized in that, The device includes a linkage assembly located on the landing door. An elevator car is located inside the landing door, and a drive assembly is installed on the elevator car. The drive assembly moves horizontally to push the linkage assembly, thereby opening the landing door.
2. The linkage opening structure for a duplex workstation floor door according to claim 1, characterized in that, The linkage assembly includes a stop that is movably connected to the landing door, and the drive assembly pushes the stop to move, thereby driving the landing door to unlock and open.
3. The linkage opening structure for a duplex workstation floor door according to claim 2, characterized in that, The linkage assembly also includes guide rods, the two ends of which are hinged to the landing door and the edge respectively, and two guide rods are arranged parallel to each other in the vertical direction.
4. The linkage opening structure for a duplex workstation floor door according to claim 3, characterized in that, A reset spring is provided below the guide rod for pulling the guide rod back to its original position. The two ends of the reset spring are fixed to the guide rod and the landing door, respectively.
5. The linkage opening structure for a duplex workstation floor door according to claim 3, characterized in that, The linkage assembly also includes a rocker arm hinged to the side guard. The movement of the side guard drives the rocker arm to push the landing door lock to unlock and open the landing door.
6. The linkage opening structure for a duplex workstation floor door according to claim 3, characterized in that, A guide groove is provided on the edge, the guide groove is set along the movement trajectory of the edge, and a guide column is installed in the guide groove and the guide column is fixed on the door.
7. The linkage opening structure for a duplex workstation floor door according to claim 2, characterized in that, The drive assembly includes a push rod, which can move horizontally relative to the car, thereby abutting against the side guard and driving the side guard to move.
8. The linkage opening structure for a duplex workstation floor door according to claim 7, characterized in that, The drive assembly also includes a support frame fixedly connected to the car, a slide rail is mounted on the support frame, and a slider is provided on the push rod that is slidably connected to the slide rail.
9. A linkage opening structure for a duplex workstation floor door according to claim 8, characterized in that, The support frame is also equipped with a drive belt, the slide rail is located inside the drive belt, and a connecting seat for connecting the push rod is fixed on the drive belt.
10. A linkage opening structure for a duplex workstation floor door according to claim 9, characterized in that, The support frame is equipped with a door opening sensor and a door closing sensor on both sides, and a baffle is fixed on the connecting seat. The baffle cooperates with the door opening sensor and the door closing sensor to control the movement position of the push rod.