Novel elevator platform car bottom structure

Abstract

The utility model provides a novel elevator platform car platform structure, which relates to the technical field of elevator car platforms, and comprises a fixed frame, a movable frame, a bottom plate, a crosspiece, a main shaft, an auxiliary shaft, a first motor, a bevel gear, an external thread section, a fixed block and a connecting rod, four supporting rods are arranged on the lower surface of the movable frame, the supporting rods are rotationally connected with the movable frame, the supporting rods are connected with the movable frame through elastic pieces, a double-shaft-extension motor is arranged on the lower surface of the movable frame, and rotating rods are arranged at the two output ends of the double-shaft-extension motor correspondingly; when the middle car platform is used, the height of the bottom plate can be reduced as required, so that the height in a car is increased, part of objects which cannot enter the car due to small height difference can be conveniently carried, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator car bottom technology, specifically a novel elevator platform car bottom structure. Background Technology

[0002] The existing elevator car base includes a support frame and a base plate set on the support frame. The car is set on the support frame. When using this type of elevator, when transporting tall items, such as appliances, mattresses and some decoration materials, the internal height of the car does not change, making it difficult to load items of similar height into the elevator. If the stairs are used to carry them upstairs, it is not only very inefficient, but also puts a lot of strain on the body. Utility Model Content

[0003] The purpose of this utility model is to provide a novel elevator platform car bottom structure, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: The novel elevator platform car bottom structure includes a fixed frame and a movable frame. The movable frame is located above the fixed frame, and a base plate is provided on the upper surface of the movable frame. Several crossbars are provided inside the fixed frame and the movable frame. A main shaft is provided inside the fixed frame, and two auxiliary shafts are respectively provided at both ends of the main shaft inside the fixed frame. A first motor is provided on the fixed frame. Bevel gears are provided at the output end of the first motor, the middle of the main shaft, both ends of the main shaft, and the middle of the auxiliary shafts. The bevel gears on the first motor mesh with the support clips in the middle of the main shaft, and the bevel gears at both ends of the main shaft mesh with... The bevel gears on the secondary shaft mesh with each other. Two external threaded sections are provided on both sides of the outer surface of the secondary shaft, and the threads on the two external threaded sections have opposite directions. Four fixed blocks are provided on the lower surface of the movable frame. A slider is threadedly connected to the external threaded section of the secondary shaft. The frame also includes a connecting rod. The two ends of the connecting rod are rotatably connected to the fixed blocks and the slider, respectively. Four support rods are provided on the lower surface of the movable frame. The support rods are rotatably connected to the movable frame and are connected to the movable frame by an elastic element. A dual-shaft extension motor is provided on the lower surface of the movable frame. Both output ends of the dual-shaft extension motor are provided with rotating rods. The support rods and rotating rods are connected by steel wire ropes.

[0005] Preferably, the support rod and the movable frame are connected by a hinge, the elastic element and the hinge are located on both sides of the support rod, and the distance between the hinge and the rotating rod is less than the distance between the elastic element and the rotating rod.

[0006] Preferably, the movable frame includes an inner region and an outer region, the fixing block, the connecting rod, and the slider are used to support the inner region of the movable frame, and the support rod is used to support the outer region of the movable frame.

[0007] Preferably, the side of the support rod is provided with a groove for accommodating the elastic element.

[0008] Preferably, the fixed frame is provided with a partition for supporting the secondary shaft.

[0009] The beneficial effects of this utility model are:

[0010] When in use, the height of the car floor can be lowered as needed, thereby increasing the height inside the car. This facilitates the transport of items that cannot be placed inside the car due to small height differences, thus improving ease of use. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0012] Figure 2 This is a side view of the car's undercarriage.

[0013] Figure 3 This is a side view of the car's undercarriage from another angle.

[0014] Figure 4 It is a top view of a fixed frame.

[0015] In the diagram: 1. Car; 2. Fixed frame; 3. Moving frame; 4. Base plate; 5. Crossbar; 6. Main shaft; 7. Sub-shaft; 8. First motor; 9. Bevel gear; 10. Threaded section; 11. Fixed block; 12. Slider; 13. Connecting rod; 14. Support rod; 15. Elastic component; 16. Hinge; 17. Dual-shaft extension motor; 18. Rotating rod; 19. Wire rope; 20. Groove; 21. Partition. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0017] like Figure 1-4As shown, a novel elevator platform car bottom structure includes a fixed frame 2 and a movable frame 3. The movable frame 3 is located above the fixed frame 2, and a base plate 4 is provided on the upper surface of the movable frame 3. Several crossbars 5 are provided inside the fixed frame 2 and the movable frame 3. A main shaft 6 is provided inside the fixed frame 2, and two auxiliary shafts 7 are respectively provided at both ends of the main shaft 6 inside the fixed frame 2. A first motor 8 is provided on the fixed frame 2. Bevel gears 9 are provided at the output end of the first motor 8, the middle part of the main shaft 6, both ends of the main shaft 6, and the middle part of the auxiliary shafts 7. The bevel gears 9 on the first motor 8 mesh with the support clips in the middle of the main shaft 6, and the bevel gears 9 at both ends of the main shaft 6 mesh with the bevel gears 9 on the auxiliary shafts 7 respectively. Two external threaded sections 10 are provided on both sides of the surface, and the threads on the two external threaded sections 10 have opposite directions. Four fixed blocks 11 are provided on the lower surface of the movable frame 3. A slider 12 is threadedly connected to the external threaded section 10 of the secondary shaft 7. It also includes a connecting rod 13. The two ends of the connecting rod 13 are rotatably connected to the fixed blocks 11 and the slider 12, respectively. Four support rods 14 are provided on the lower surface of the movable frame 3. The support rods 14 are rotatably connected to the movable frame 3. The support rods 14 and the movable frame 3 are connected by an elastic element 15. A dual-shaft extension motor 17 is provided on the lower surface of the movable frame 3. A rotating rod 18 is provided on both output ends of the dual-shaft extension motor 17. The support rods 14 and the rotating rods 18 are connected by a steel wire rope 19.

[0018] During normal use, the upper surface of the base plate 4 is kept approximately level with the floor of the elevator hall to facilitate people's normal entry and exit from the elevator car 1. When it is necessary to increase the height inside the elevator car 1, the first motor 8 is started first. The first motor 8 drives the bevel gear 9 at its output end to rotate, and through meshing with the bevel gear 9 on the main shaft 6, it drives the main shaft 6 to rotate. At the same time, it drives the bevel gears 9 at both ends of the main shaft 6 to rotate. The bevel gears 9 at both ends of the main shaft 6, through meshing with the bevel gears 9 on the secondary shaft 7, drive the two secondary shafts 7 to rotate. Since the four sliders 12 are connected to the movable block through the connecting rod 13 and the fixed block 11, the four sliders 12 can move along the secondary shaft 7 simultaneously when the secondary shaft 7 rotates. The two sliders 12 located on the same secondary shaft 7 can move closer or further away from each other. Here, it is necessary to control the two sliders 12 on the same secondary shaft 7 to move closer to each other. When the two sliders 12 move closer to each other, they will push the movable frame 3 and the base plate 4 on the movable frame 3 upward through the connecting rod 13 and the fixed block 11. The support rod 14 is moved so that its lower end is kept at a certain distance from the upper surface of the fixed frame 2. When this distance does not affect the rotation of the support rod 14, the first motor 8 stops working and then the dual-shaft extension motor 17 is started. The dual-shaft extension motor 17 drives the rotating rods 18 on both sides to rotate. When the rotating rods 18 rotate, they will tighten the steel wire rope 19 connected to the support rod 14, thereby causing the support rod 14 to flip. After the support rod 14 has completed flipping, the dual-shaft extension motor 17 stops working. At this time, the support rod 14 cannot continue to flip under the winding of the rotating rods 18. Then, the first motor 8 is started and its output end rotates in the opposite direction, controlling the two sliders 12 on the same auxiliary shaft 7 to move away from each other. At this time, the movable frame 3 and the base plate 4 will move downward. When one side of the support rod 14 contacts the upper surface of the fixed frame 2, the first motor 8 stops working. At this time, the horizontal height of the upper surface of the base plate 4 is lower than the current horizontal height of the elevator hall floor, thereby increasing the height inside the car 1 to facilitate the transport of some items.

[0019] After the items inside the elevator car 1 are transferred out, the first motor 8 is started first. The first motor 8 drives the movable frame 3 and the base plate 4 to move upward. When the movable frame 3 moves upward to a certain height, the support rod 14 can flip between the movable frame 3 and the fixed frame 2. Then the first motor 8 stops. Next, the dual-shaft extension motor 17 is started. The dual-shaft extension motor 17 controls the rotating rod 18 to rotate in the opposite direction. The wire rope 19 wound on the rotating rod 18 is released. At the same time, under the action of the elastic element 15, the support rod 14 is made perpendicular to the fixed frame 2 again. When the support rod 14 is perpendicular to the fixed frame 2, the dual-shaft extension motor 17 stops working. Then the first motor 8 is started to control the movable frame 3 and the base plate 4 to move downward until the lower end of the support rod 14 contacts the upper surface of the fixed frame 2. The first motor 8 stops working, thus completing the reset of the movable frame 3 and the base plate 4. After the reset is completed, the upper surface of the base plate 4 is approximately at the same height as the current elevator hall floor.

[0020] Furthermore, the support rod 14 is connected to the movable frame 3 by a hinge 16. The elastic element 15 and the hinge 16 are located on both sides of the support rod 14, and the distance between the hinge 16 and the rotating rod 18 is less than the distance between the elastic element 15 and the rotating rod 18.

[0021] Furthermore, the movable frame 3 includes an inner region and an outer region. The fixing block 11, connecting rod 13, and slider 12 are used to support the inner region of the movable frame 3, and the support rod 14 is used to support the outer region of the movable frame 3. When the base plate 4 is in normal use, and after the base plate 4 is adjusted downward, the support rod 14, the slider 12 on the sub-shaft 7, the connecting rod 13, and the fixing block 11 can all effectively support the movable frame 3 and the base plate 4 to improve the stability of the user when riding in the car 1.

[0022] Furthermore, the side of the support rod 14 is provided with a groove 20 for accommodating the elastic element 15, so as to avoid excessive compression of the side of the support rod 14 when it comes into contact with the fixed frame 2, which would cause wear to the elastic element 15 and ensure that the elastic element 15 can be used effectively for a long time.

[0023] Furthermore, the fixed frame 2 is provided with a partition 21 for supporting the sub-shaft 7 to improve the stability of the sub-shaft 7 during rotation.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 based on the specific circumstances.

Claims

1. A novel elevator platform floor structure, characterized by, The utility model provides a kind of frame, including fixed frame and movable frame, the upper surface of movable frame is provided with bottom plate, the inside of fixed frame and movable frame is provided with several horizontal barriers, the main shaft is provided in the fixed frame, two auxiliary shafts are respectively provided in the fixed frame and located the both ends of main shaft, first motor is provided on the fixed frame, the output end of first motor, the middle part of main shaft and the both ends of main shaft, the middle part of auxiliary shaft is provided with bevel gear, the bevel gear on first motor is engaged with the support quick of main shaft middle part, the bevel gear on the both ends of main shaft is engaged with the bevel gear on auxiliary shaft respectively, two outer thread sections are provided on the outer surface of auxiliary shaft, the thread rotation direction of two outer thread sections is opposite, the lower surface of movable frame is provided with four fixed blocks, the outer thread section on auxiliary shaft is connected with slider by screw thread, it further include connecting rod, the both ends of connecting rod are rotatably connected with fixed block and slider respectively, the lower surface of movable frame is provided with four support rods, support rod is rotatably connected with movable frame, support rod and movable frame are connected by elastic member between, the lower surface of movable frame is provided with double-shaft extension motor, the both ends of double-shaft extension motor are provided with rotating rod, support rod and rotating rod are connected by steel wire rope between.

2. The novel elevator platform deck structure according to claim 1, characterized in that, Support rod and movable frame are connected by hinge between, elastic member and hinge are located on the both sides of support rod, the distance between hinge and rotating rod is less than the distance between elastic member and rotating rod.

3. The novel elevator platform deck structure according to claim 1, characterized in that, Movable frame includes inside area and outside area, fixed block, connecting rod and slider are used to support the inside area of movable frame, and support rod is used to support the outside area of movable frame.

4. The novel elevator platform deck structure according to claim 1, characterized in that, Groove for accommodating elastic member is formed in the side of support rod.

5. The novel elevator platform deck structure according to claim 1, characterized in that, Partition for supporting auxiliary shaft is provided on the fixed frame.

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