Turnover plate device of construction elevator
By installing flip gear components and racks on the construction elevator, the movement of the elevator doors can automatically flip the flip, which solves the problems of transportation difficulties and safety hazards of construction elevators, improves construction efficiency and reduces costs.
Patent Information
- Application Number
- CN202421041416.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-14
AI Technical Summary
During the transportation process, the distance between the car and the floor is too small, which makes it difficult for transport vehicles to enter and exit, affecting construction efficiency and posing safety hazards. The existing automatic flip structure is complex and costly.
Design a construction elevator flap device, which uses the upper and lower door opening movement of the construction elevator, and realizes automatic flip of the flap through the meshing of the flap gear assembly and the rack, without the need for separate driving. The gear assembly is installed on the car bottom plate and the lower door. , simple structure, easy to install and maintain.
The automatic flip of the flip plate is realized, the construction efficiency is improved, the installation and operation costs are reduced, the time and effort consumption of frequent manual operations is avoided, and the safety is improved.
Smart Images
Figure CN222249658U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a construction elevator flap device and belongs to the technical field of construction elevator structures. Background Art
[0002] In order to improve construction efficiency in construction projects, construction elevators are usually used to transport workers and materials to (or away from) each floor. In order to ensure that the construction elevator does not collide with the building during its up and down operation and to facilitate material transportation, the construction elevator car is usually kept at a distance of 100-200mm from the floor. In actual use, due to the 100-200mm distance, the wheels of the transport vehicles are often stuck in the gap when entering and exiting the elevator car. The transport vehicles need to increase the power to enter and exit the elevator car, which can easily cause the car and the construction elevator to shake as a whole. Not only does it affect the construction efficiency on site, but it can also easily cause the construction elevator to shake as a whole at a high frequency, creating a huge safety hazard; and when people enter and exit the car to enter the floor, they are also prone to personal injury due to stepping into the air. To solve this problem, the traditional practice is that after the construction elevator is installed, the construction site user will install a rotatable steel plate in the car, commonly known as a "flap". However, since each time entering or exiting the elevator, the door must be opened first and then the flap must be lowered or put away, the frequency of use is high, which is not only time-consuming and labor-intensive, but also affects transportation efficiency. In order to achieve automatic flipping of the flap and improve efficiency, many automatic flipping flap structures have also appeared in the prior art, for example, CN202110169221.1-Construction elevator with protective flap door, CN202311217962.8-A flap device for construction elevators and its use method, CN202311758880.4-Construction elevator flap and elevator door intelligent linkage control device and its control method, CN202320997124.6-A construction elevator passage flap device, but most of the existing automatic flipping flap structures are complex in structure or are driven by motors to achieve flipping, and the installation and operation costs are high. Utility Model Content
[0003] The utility model provides a construction elevator flap device, which can flip the flap down into place when the car door is opened and flip the flap up and reset when the car door is closed. The automatic flipping of the flap is achieved by utilizing the movement of the lower door of the construction elevator. There is no need to drive the flap separately. The flap gear assembly and the rack are respectively mounted on the car bottom plate and the lower door. The structure is simple, easy to install and maintain, with low installation and operation costs and high practicality.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] The construction elevator flap device is installed on a construction elevator with double doors that open up and down, and is characterized by comprising a flap gear assembly rotatably installed on the bottom plate of the bridge car of the construction elevator and a rack installed on the top of the lower door of the construction elevator and meshing with the flap gear assembly. The flap gear assembly is supported in the car, and the rack drives the flap gear assembly to flip downward and extend to the building level as the lower door opens downward, or drives the flap gear assembly to flip upward and reset as the lower door closes upward.
[0006] Preferably, the flap gear assembly includes a flap whose width is smaller than the width of the car and supported in the car, a connecting shaft extending from the left and right ends of the bottom of the flap, a bearing pressed onto the connecting shaft, and a gear pressed onto the connecting shaft and meshing with the rack, and the bearing is assembled in a bearing seat on the bottom plate of the bridge car.
[0007] Preferably, the length of the rack is not less than one-fourth of the circumference of the outer ring of the gear, there are two racks, the two racks are horizontally aligned, and are vertically fixed to the top of the inner side of the lower door, and the gears and racks correspond one to one.
[0008] Preferably, blocks for supporting the flap are fixed on the left and right inner walls of the bridge compartment, the blocks are located at the rear side of the flap, the flap flips upward clockwise and is supported on the blocks, and the height of the blocks on the left and right inner walls of the bridge compartment is not less than half of the height of the flap.
[0009] The beneficial effects of the utility model are:
[0010] The utility model discloses a construction elevator flap device, a flap gear assembly is installed on the bridge car bottom plate, and a rack is installed on the lower door of the construction elevator. When the construction elevator moves to the required building floor, the upper door of the car moves upward and the lower door moves downward when the car door is opened, and the lower door moves until the rack is meshed with the flap gear assembly, driving the flap gear assembly to flip downward counterclockwise. When the lower door is fully opened, the flap gear assembly extends to the building level, and the car door is opened and the flap is flipped down into place at the same time; when the car door is closed, the upper door moves downward and the lower door moves upward, the rack moves upward and meshes with the flap gear assembly, driving the flap gear assembly to flip upward clockwise and reset, and is supported in the car again, and the car door is closed and the flap is flipped up and reset at the same time; the movement of the lower door of the construction elevator is used to realize the automatic flipping of the flap, and there is no need to drive the flap separately. The flap gear assembly and the rack are respectively installed on the car bottom plate and the lower door. The structure is simple, easy to install and maintain, with low installation and operation costs and high practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the state of the construction elevator flap device when the upper door and the lower door are closed in a specific implementation method.
[0012] Figure 2 for Figure 1 A partial enlarged schematic diagram of .
[0013] Figure 3 This is a schematic diagram of the status of the construction elevator flap device when the upper door and the lower door are open.
[0014] Figure 4 for Figure 3 A partial enlarged schematic diagram of .
[0015] Figure 5 A schematic diagram of a flap gear assembly. DETAILED DESCRIPTION
[0016] Combine the following Figures 1 to 5 The embodiments of the present utility model are described in detail.
[0017] The construction elevator flap device is installed on a construction elevator with double doors that open up and down, and is characterized in that it includes a flap gear assembly 3 rotatably installed on the bottom plate 1 of the bridge car of the construction elevator and a rack 5 installed on the top of the lower door 4 of the construction elevator and meshing with the flap gear assembly 3. The flap gear assembly 3 is supported in the car 2, and the rack drives the flap gear assembly 3 to flip downward and extend to the building level 6 as the lower door opens downward, or drives the flap gear assembly 3 to flip upward and reset as the lower door 4 closes upward.
[0018] The above-mentioned construction elevator flap device has a flap gear assembly 3 installed on the bridge car bottom plate 1, and a rack installed on the lower door 4 of the construction elevator. When the construction elevator moves to the required building floor, the car door opens, the upper door 7 of the car moves upward, and the lower door 4 moves downward. The lower door 4 moves until the rack 5 meshes with the flap gear assembly 3, driving the flap gear assembly 3 to flip downward counterclockwise. When the lower door 4 is fully opened, the flap gear assembly 3 extends to the building level 6, so that the flap is flipped down into place while the car door is opened; when When the car door is closed, the upper door 7 moves downward and the lower door 4 moves upward, and the rack 5 moves upward to engage with the flap gear assembly 3, driving the flap gear assembly 3 to flip upward clockwise and reset, and be supported in the car 2 again, so that the flap can be flipped up and reset while the car door is closed; the movement of the lower door of the construction elevator is used to realize the automatic flipping of the flap, and there is no need to drive the flap separately. The flap gear assembly 3 and the rack 5 are respectively installed on the car floor 1 and the lower door 4, with a simple structure, easy installation and maintenance, low installation and operation costs, and high practicality.
[0019] The flap gear assembly 3 includes a flap 31 whose width is smaller than the width of the car and supported in the car, a connecting shaft 32 extending from the left and right ends of the bottom of the flap 31, a bearing 33 pressed on the connecting shaft 32, and a gear 34 pressed on the connecting shaft and meshing with the rack 5, and the bearing 33 is assembled in the bearing seat of the bridge car bottom plate 1. The connecting shaft 32 is mounted on the bridge car bottom plate 1 through the bearing 33, so that the flap 31 can be turned over, and the rack 5 meshes with the gear 34 with the movement of the lower door 4, providing power for the turning of the flap 31. When the rack 5 moves downward and meshes with the gear 34, it drives the flap 31 to turn down counterclockwise and extend to the building level 6, and when the rack moves upward and meshes with the gear 34, it drives the flap 31 to turn up clockwise and reset, and return to the car 2.
[0020] The length of the rack 5 is not less than one-fourth of the outer circumference of the gear 34. There are two racks 5, which are aligned horizontally and fixed vertically to the top of the inner side of the lower door 4. The gear 34 corresponds to the rack 5 one by one. The meshing of the rack 5 and the gear 34 will drive the gear 34 to rotate. The flap 31 will rotate back to the position as shown in the figure below due to gravity when it is turned up clockwise to reset. Figure 1 and 2 The length of the rack 5 is not less than one-fourth of the outer circumference of the gear 34, ensuring that when the rack 5 descends and meshes with the gear 34, it will drive the flap 31 to flip down in a counterclockwise direction.
[0021] Wherein, the stopper 8 for supporting the flap 31 is fixed on the left and right inner walls of the bridge compartment 2, and the stopper 8 is located at the rear side of the flap 31. The flap 31 flips upward clockwise and is supported on the stopper 8, and the height of the stopper 8 on the left and right inner walls of the bridge compartment is not less than half of the height of the flap 31. The stopper 8 is used to support the flap 31 to prevent the flap 31 from falling on the car floor 1 due to gravity after flipping upward clockwise, so that the flap 31 will flip upward and reset to the supported state. When the lower door 4 moves downward, the meshing of the rack 5 and the gear 34 will drive the flap 31 to flip downward counterclockwise. After the flap 31 flips to the center of gravity downward, the gravity of the flap 31 will also ensure that the flap 31 flips into place.
[0022] The above is a complete description of the technical solutions of the embodiments of the utility model in combination with the accompanying drawings. It should be noted that the described embodiments are only part of the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
Claims
1. A construction elevator flap device is installed on a construction elevator with double doors that open up and down, and is characterized by: It includes a flap gear assembly rotatably installed on the bottom plate of the bridge car of the construction elevator and a rack installed on the top of the lower door of the construction elevator and meshing with the flap gear assembly. The flap gear assembly is supported in the car. The rack drives the flap gear assembly to flip downward and extend to the building level as the lower door opens downward, or drives the flap gear assembly to flip upward and reset as the lower door closes upward.
2. The construction elevator flap device according to claim 1, characterized in that: The flap gear assembly includes a flap whose width is smaller than the width of the car and is supported in the car, a connecting shaft extending from the left and right ends of the bottom of the flap, a bearing pressed onto the connecting shaft, and a gear pressed onto the connecting shaft and meshing with the rack, and the bearing is assembled in a bearing seat on the bottom plate of the bridge car.
3. The construction elevator flap device according to claim 2, characterized in that: The length of the rack is not less than one-fourth of the circumference of the outer ring of the gear. There are two racks, which are horizontally aligned and vertically fixed to the top of the inner side of the lower door. The gears and racks correspond one to one.
4. The construction elevator flap device according to claim 3 is characterized in that: The left and right inner walls of the bridge compartment are fixed with blocks for supporting the flap, the blocks are located at the rear of the flap, the flap flips upward clockwise and is supported on the blocks, and the height of the blocks on the left and right inner walls of the bridge compartment is not less than half of the height of the flap.