Elevator turning plate opening and closing linkage device based on gear and rack

Abstract

The utility model discloses an elevator turning plate opening and closing linkage device based on a gear and a rack. The elevator turning plate opening and closing linkage device comprises an elevator sliding door, the gear, the rack and a turning plate. The elevator sliding door comprises an upper sliding door body and a lower sliding door body, two racks are vertically arranged at the tops of the two sides, facing the elevator car, of the lower sliding door body respectively, the turning plate is rotationally connected with an elevator car bottom plate through a rotating shaft, and two gears are arranged at the positions, corresponding to the racks, of the two sides of the rotating shaft. When the lower sliding door is opened downwards, the rack is meshed with the gear, and the rotating shaft drives the turning plate to turn outwards to be lapped between the car and the floor; when the lower sliding door is closed upwards, the rack is meshed with the gear, and the rotating shaft drives the turning plate to turn inwards into the lift car. The device is simple in structure, stable in operation, durable, and capable of effectively achieving synchronous linkage of the sliding door and the turning plate, reducing manual operation, shortening waiting time, improving construction efficiency, reducing safety accident risks caused by misoperation or negligence and improving construction safety.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to an elevator flap opening and closing linkage device based on a gear rack. Background Art

[0002] With the continuous development of urban construction, the number of high-rise and super-high-rise buildings is increasing. Construction elevators, as important means of transportation in these construction projects, have attracted widespread attention for their performance and safety. To improve the transportation efficiency of construction elevators while ensuring the safety of construction workers, the design and application of flap opening and closing linkage devices are particularly important. The flap device enables smooth docking between the elevator car and the floor platform, facilitating the safe entry and exit of construction workers and materials. The construction elevator flap opening and closing linkage function, that is, when the elevator car reaches the designated floor, the flap automatically opens as the construction elevator opens, greatly improving the elevator's operating efficiency. The performance of the flap opening and closing linkage device directly affects the overall performance of the elevator, improving the construction elevator's operating efficiency and saving time. Therefore, researching and improving the flap opening and closing linkage device is of great significance to improving the overall performance of the construction elevator. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide an elevator flap opening and closing linkage device based on gear racks, so that the elevator sliding door and the flap are linked, reducing manual operation and shortening waiting time, while also avoiding safety risks caused by improper operation or negligence. The structure is simple, stable and durable, thus overcoming the shortcomings of the existing technology.

[0004] In order to solve the above technical problems, the utility model provides an elevator flap opening and closing linkage device based on a gear rack, comprising an elevator sliding door, a gear, a rack and a flap;

[0005] The elevator sliding door includes an upper sliding door and a lower sliding door. Two racks are vertically arranged on the top of the lower sliding door facing the car. The flap is rotatably connected to the car floor through a rotating shaft. Two gears are arranged on both sides of the rotating shaft corresponding to the racks.

[0006] When the sliding door is opened downward, the rack is engaged with the gear, and the rotating shaft drives the flap to flip outward and overlap between the car and the floor; when the sliding door is closed upward, the rack is engaged with the gear, and the rotating shaft drives the flap to flip inward into the car.

[0007] As an improvement of the present invention, the number of teeth on the rack is 1 / 4 of the number of teeth on the gear, so that the rotation angle of the flap for turning outward or inward is 90°.

[0008] Furthermore, the rack is welded and fixed to the sliding door, and the top of the rack is flush with the top of the sliding door.

[0009] Furthermore, the gear is sleeved on the rotating shaft and fixed to the rotating shaft by welding.

[0010] Furthermore, the car floor is provided with a hole at the position where the gear is located to allow the gear to rotate without interference.

[0011] Furthermore, armrests are fixedly connected to both sides of the flap.

[0012] After adopting such a design, the utility model has at least the following advantages:

[0013] 1. When the construction elevator opens its door, the sliding door slides down to the meshing point between the rack and the gear, and the flap flips outward. When the sliding door is fully lowered into place, the flap just passes over the top of the sliding door and overlaps between the car and the floor slab. The flap rotates synchronously with the sliding door, which reduces manual operation, shortens waiting time, speeds up construction progress, and significantly improves the working efficiency of the construction elevator.

[0014] 2. The linkage control of the flap and the sliding door effectively reduces the risk of safety accidents caused by improper operation or negligence, and improves construction safety;

[0015] 3. The number of teeth on the rack is 1 / 4 of the number of teeth on the gear, so that the inward and outward turning angle of the flap is 90°, and the speed of the flap rotation is adapted to the running speed of the sliding door. The two do not interfere with each other and can run in place synchronously.

[0016] 4. Handrails are set on both sides of the flap to facilitate the safe entry and exit of personnel and materials.

[0017] 5. It has a simple structure, stable operation, and durability. It can operate stably for a long time in harsh construction environments, providing a strong guarantee for the smooth progress of construction projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a structural schematic diagram of the utility model when the downward sliding door is not opened.

[0020] Figure 2 It is a structural schematic diagram of the utility model during the process of opening the downward sliding door.

[0021] Figure 3 It is a structural schematic diagram of the utility model when the downward sliding door is in an open state.

[0022] Figure 4 It is a schematic diagram of the structure of the rack part.

[0023] Figure 5 It is a schematic diagram of the partial structure of the gear.

[0024] Explanation of the accompanying reference numerals: 1. Sliding door; 2. Rack; 3. Gear; 4. Flap. DETAILED DESCRIPTION

[0025] See also Figures 1 to 5 The utility model provides an elevator flap opening and closing linkage device based on a gear rack, comprising an elevator sliding door, a gear 3, a rack 2 and a flap 4.

[0026] In this embodiment, the elevator sliding door is an upper and lower opening sliding door, including an upper sliding door and a lower sliding door 1. Two racks 2 are vertically arranged on the top of both sides of the lower sliding door facing the car. In this embodiment, the rack 2 is flush with the top of the lower sliding door 1, and the two are fixedly connected by welding.

[0027] The flap 4 is provided with a rotating shaft along its edge along the width of the car, and is rotatably connected to the car floor via the rotating shaft. Gears 3 are mounted on each end of the rotating shaft, and the gears 3 are fixed to the rotating shaft by welding. The car floor has a hole where the gears 3 are located to allow them to rotate freely without interference.

[0028] The position of the gear 3 corresponds to the position of the rack 2. When the sliding door moves to the designated position, the gear 2 and the rack 3 mesh, thereby driving the flap 4 to turn outward or inward via the rotating shaft. In this embodiment, the number of teeth on the rack 2 is 1 / 4 of the number of teeth on the gear 3, so the angle of rotation of the flap to turn outward or inward is 90 degrees.

[0029] Preferably, handrails are fixedly connected to both sides of the flap 4 to improve the convenience and safety of people and materials entering and exiting.

[0030] When the utility model is in use, after the construction elevator stops at the current floor, the upper sliding door and the lower sliding door are opened synchronously. When the lower sliding door 1 runs close to the floor slab of the current floor, the rack 2 and the gear 3 are meshed. As the lower sliding door 1 continues to slide downward, the rack 2 and the gear 3 drive the rotating shaft to rotate, thereby driving the flap 4 to flip outward. The flipping speed matches the sliding speed of the lower sliding door 1, so that when the lower sliding door 1 is completely slid into place, the flap 4 just passes over the top of the lower sliding door 1 and overlaps between the car and the floor slab of the current floor. When the lower sliding door 1 is closed upward, the flap 4 flips inward into the car.

[0031] The utility model has a simple structure, stable operation, and durability, and can effectively realize the synchronous linkage of the sliding door and the flap, reduce manual operation, shorten waiting time, and improve construction efficiency. At the same time, it also reduces the risk of safety accidents caused by improper operation or negligence, and improves construction safety.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Those skilled in the art can make some simple modifications, equivalent changes or modifications based on the technical content disclosed above, which fall within the scope of protection of the present invention.

Claims

1. An elevator flap opening and closing linkage device based on gear rack, characterized in that: Includes elevator sliding doors, gears, racks and flaps; The elevator sliding door includes an upper sliding door and a lower sliding door. Two racks are vertically arranged on the top of the lower sliding door facing the car. The flap is rotatably connected to the car floor through a rotating shaft. Two gears are arranged on both sides of the rotating shaft corresponding to the racks. When the sliding door is opened downward, the rack is engaged with the gear, and the rotating shaft drives the flap to flip outward and overlap between the car and the floor; when the sliding door is closed upward, the rack is engaged with the gear, and the rotating shaft drives the flap to flip inward into the car.

2. The gear rack-based elevator flap opening and closing linkage device according to claim 1, characterized in that: The number of teeth on the rack is 1 / 4 of the number of teeth on the gear, so that the rotation angle of the flap for turning outward or inward is 90°.

3. The gear rack-based elevator flap opening and closing linkage device according to claim 1, characterized in that: The rack is welded and fixed to the sliding door, and the top of the rack is flush with the top of the sliding door.

4. The gear rack-based elevator flap opening and closing linkage device according to claim 1, characterized in that: The gear is sleeved on the rotating shaft and fixed to the rotating shaft by welding.

5. The gear rack-based elevator flap opening and closing linkage device according to claim 1, characterized in that: The car floor is opened at the position where the gear is located to allow the gear to rotate without interference.

6. The gear rack-based elevator flap opening and closing linkage device according to claim 1, characterized in that: Handrails are fixedly connected to both sides of the flap.

Images