Gear-driven household elevator landing door vertical lifting mechanism
The vertical improvement of the living doors of home elevators is achieved through the gear transmission mechanism, which solves the problems of traditional elevators taking up more space and high maintenance costs, and provides a safe and efficient solution for opening and closing of living doors.
Patent Information
- Application Number
- CN202421784864.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The open structure of traditional household elevator hall doors takes up too much space, and the wire rope or chain linkage scheme is prone to wear, resulting in high maintenance costs and is difficult to apply to the home environment.
The gear transmission mechanism is used to drive the triple hall doors to operate independently through the driving motor and the gear box, cancel the direct linkage between the hall doors, and use pulleys and transmission belts of different speeds to achieve lifting and lowering at different speeds.
It realizes safe and efficient opening and closing of hall doors, reduces maintenance frequency and cost, improves space utilization, and is suitable for home environments.
Smart Images
Figure CN223188750U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of household elevators, in particular to a gear-driven vertical lifting mechanism for a household elevator hall door. Background Art
[0002] At present, elevator hall doors in common public places such as residential areas or shopping malls are all left-right double-leaf structures. The hall doors of this structure require the horizontal width of the elevator shaft to be wide enough to accommodate the normal opening and closing actions of the hall doors.
[0003] With the improvement of people's living standards, home elevators have gradually become popular. However, the area of home space is limited, and the utilization of each space needs to be strictly controlled. Elevators, as connecting channels of high spaces, cannot be saved, resulting in traditional elevators with double-door doors occupying too much space in the home environment, causing space waste.
[0004] Vertical hall doors are mostly used in freight elevators. Their advantage is that they open vertically and occupy almost no horizontal area. They are usually designed as double-door or triple-door structures. Through the linkage between doors, fast opening and slow opening coordination, multiple doors can open or close the elevator door.
[0005] However, the multi-door structures in freight elevators are mostly connected by chains or steel ropes in conjunction with movable pulleys. During the frequent opening and closing process, the steel ropes or chains are severely worn and easily fatigued or rusted and broken, posing a safety hazard.
[0006] The traditional solution is to regularly replace the transmission chain or wire rope of the freight elevator hall door to ensure its performance. However, due to its commercial nature, the maintenance cost of freight elevators can be spread over the operating costs and will not cause any problems in commercial applications. In a home environment, the frequency of use is relatively high, and people require elevators to be durable and require as little maintenance as possible. The cost of frequently replacing transmission chains or wire ropes is also too high, making them unsuitable for home use.
[0007] Based on the above reasons, it is necessary to design a new vertical lifting mechanism for use in home hall doors to solve the problem of high maintenance costs caused by the complexity and easy wear of wire ropes or chains under traditional linkage solutions. Utility Model Content
[0008] The purpose of the utility model is to address the deficiencies of the existing technology and thus provide a gear-driven vertical lifting mechanism for household elevator hall doors, in which each hall door is independently driven, there is no direct linkage relationship between doors, and the mechanism is durable.
[0009] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a gear-driven household elevator hall door vertical lifting mechanism, comprising a frame, a drive motor, a gear box and a triple hall door;
[0010] The frame is a rectangular elevator frame, and three vertically arranged and mutually parallel guide chutes are respectively provided on the inner sides of the left and right frames in the thickness direction, and the guide chutes of the left and right frames are arranged in pairs. The top end of the frame is used to install the drive motor and the gear box;
[0011] The gearbox is provided with two groups, which are respectively arranged at the top of the left frame and the top of the right frame. Three pulleys with different speeds are provided on the output side of the gearbox. The positions of the three pulleys correspond to the three guide chutes respectively. The bottom end of each guide chute is provided with a pulley of the same specification as the top. The pulleys at the bottom and top of each guide chute are driven by a transmission belt, and a fixed block is installed on the transmission belt.
[0012] The driving motor is installed on the top of the frame, and is used to drive the two sets of gear boxes to operate;
[0013] The two ends of the triple hall door are respectively embedded in the three pairs of guide slides on the left and right sides, and are connected and fixed with the three pairs of fixing blocks in the three pairs of guide slides;
[0014] The driving motor drives the triple landing door to rise or fall at different operating speeds through a gear box and a transmission belt.
[0015] Preferably, the gearbox includes a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a sixth gear, a first pulley, a second pulley, a third pulley and two transmission shafts;
[0016] The first gear, the second gear and the third gear are coaxially fixed to the first transmission shaft, and the first gear is an input gear;
[0017] The first pulley, the fourth gear, the second pulley, the fifth gear, the third pulley and the sixth gear are arranged in sequence and rotatably matched with the second transmission shaft, the first pulley and the fourth gear are fixed to each other, the second pulley and the fifth gear are fixed to each other, the third pulley and the sixth gear are fixed to each other, the first gear is meshed with the fourth gear, the second gear is meshed with the fifth gear core, and the third gear is meshed with the sixth gear;
[0018] The first pulley, the second pulley and the third pulley are three output pulleys of the gear box.
[0019] Preferably, the diameters of the first gear, the second gear and the third gear increase sequentially.
[0020] Preferably, the diameters of the fourth gear, the fifth gear and the sixth gear decrease in sequence.
[0021] Preferably, the first pulley, the second pulley and the third pulley have the same specifications.
[0022] Preferably, the first pulley, the second pulley and the third pulley correspond one-to-one to the three guide grooves on the same side in the thickness direction, and the upper ends of the three transmission belts are respectively in transmission cooperation with the three pulleys.
[0023] Preferably, the speed ratio of the first pulley, the second pulley and the third pulley is 1:2:3.
[0024] Preferably, the drive motor is a dual-output shaft drive motor, and the two output shafts of the drive motor are respectively matched with the input gear of the gear box through a pulley, a synchronous belt and a synchronous gear.
[0025] Preferably, the length of the fixing block is more than half of the length of a single hall door, and the fixing block is connected to the hall door via bolts.
[0026] Preferably, the triple hall doors are, from top to bottom and from inside to outside, a slow door, a middle door and a shutter door.
[0027] The present invention has outstanding substantive features and significant progress compared to the prior art. Specifically, the present invention has the following advantages:
[0028] 1. The drive motor and gear box are used to output three pulleys and transmission belts, which drive the three hall doors to operate independently at different lifting speeds, thereby realizing the linkage opening and closing of the three hall doors. The direct linkage relationship between the hall doors in the traditional solution is cancelled, and the commonly used chains or wire ropes are cancelled, thus avoiding the wear of the chains or wire ropes caused by frequent linkage between the hall doors, and thus avoiding the high cost of regular replacement, ensuring safety, making the hall door opening and closing mechanism safe and efficient, with a long service life, and suitable for home environments.
[0029] 2. Replacing the double-leaf structure of the traditional home elevator hall door with a vertical lifting door structure will improve space utilization. The elevator shaft does not need to be set too wide, which will increase the acceptance of elevator products in the home environment.
[0030] 3. The gearbox adopts multiple groups of gears of different diameters to mesh with each other to achieve the speed adjustment combination relationship. Three pulleys are set on the output side of the gearbox to run at different speeds, effectively utilizing the performance of the gearbox to complete the different lifting speeds of the triple landing door. It has a simple structure and takes up little space. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 The utility model is an external structural diagram of a gear-driven vertical lifting mechanism for a household elevator hall door.
[0032] Figure 2The utility model is a schematic diagram of the internal structure of a gear-driven vertical lifting mechanism for a household elevator hall door.
[0033] Figure 3 The utility model is a side view of the interior of a gear-driven vertical lifting mechanism for a household elevator hall door.
[0034] Figure 4 It is a transmission relationship diagram of the gear box in the utility model.
[0035] In the figure: 1. Frame; 2. Drive motor; 3. Gearbox; 11. Left frame; 12. Right frame; 13. Guide chute; 14. Transmission belt; 15. Fixed block; 21. Pulley; 22. Synchronous belt; 23. Synchronous gear; 31. First gear; 32. Second gear; 33. Third gear; 34. Fourth gear; 35. Fifth gear; 36. Sixth gear; 37. First pulley; 38. Second pulley; 39. Third pulley; 41. First transmission shaft; 42. Second transmission shaft; 51. Slow shutter; 52. Middle shutter; 53. Shutter. DETAILED DESCRIPTION
[0036] The technical solution of the present utility model is further described in detail below through specific implementation methods.
[0037] like Figures 1-4 As shown, a gear-driven household elevator hall door vertical lifting mechanism includes a frame 1, a drive motor 2, a gear box 3 and a triple hall door.
[0038] The frame 1 is a rectangular elevator frame. Three vertically arranged and parallel guide grooves 13 are respectively provided on the inner sides of the left frame 11 and the right frame 12 in the thickness direction. The guide grooves 13 of the left frame 11 and the right frame 12 are arranged in pairs. The top of the frame 1 is used to install the drive motor 2 and the gear box 3.
[0039] The gear boxes 3 are provided in two groups, which are respectively provided on the top of the left frame 11 and the top of the right frame 12 .
[0040] In this embodiment, the gearbox 3 includes a first gear 31, a second gear 32, a third gear 33, a fourth gear 34, a fifth gear 35, a sixth gear 36, a first pulley 37, a second pulley 38, a third pulley 39 and two transmission shafts;
[0041] The first gear 31 , the second gear 32 and the third gear 33 are coaxially fixed to the first transmission shaft 41 . The first gear 31 is an input gear, which is used for driving the driven motor 2 .
[0042] The first pulley 37 , the fourth gear 34 , the second pulley 38 , the fifth gear 35 , the third pulley 39 and the sixth gear 36 are sequentially arranged and rotatably engaged with the second transmission shaft 42 .
[0043] The first pulley 37 and the fourth gear 34 are fixed to each other, the second pulley 38 and the fifth gear 35 are fixed to each other, the third pulley 39 and the sixth gear 36 are fixed to each other, the first gear 31 is engaged with the fourth gear 34, the second gear 32 is engaged with the fifth gear 35, and the third gear 33 is engaged with the sixth gear 36.
[0044] The first pulley 37 , the second pulley 38 and the third pulley 39 are three output pulleys of the gear box 3 .
[0045] Since the triple hall doors require different lifting speeds, in this embodiment, the triple hall doors are arranged from top to bottom and from inside to outside in the order of slow door 51, middle door 52, and shutter door 53, with a speed ratio of 1:2:3. Therefore, it is necessary to set the rotational speed ratio of the first pulley 37, the second pulley 38, and the third pulley 39 to 1:2:3. Therefore, the diameters of the first gear 31, the second gear 32, and the third gear 33 increase in sequence, and the diameters of the fourth gear 34, the fifth gear 35, and the sixth gear 36 decrease in sequence. The specifications of the first pulley 37, the second pulley 38, and the third pulley 39 are the same, and ultimately the rotational speed ratio of the first pulley 37, the second pulley 38, and the third pulley 39 is also set to 1:2:3.
[0046] The first pulley 37, the second pulley 38 and the third pulley 39 correspond to the three guide grooves 13 on the same side in the thickness direction. The bottom end of each guide groove 13 is provided with a pulley of the same specification as the top. The pulleys at the bottom and the top of each guide groove 13 are driven by a transmission belt 14, and a fixed block 15 is installed on the transmission belt 14.
[0047] The two ends of the triple hall door are respectively embedded in the three pairs of guide slots 13 on the left and right sides, and are connected and fixed with the three pairs of fixing blocks 15 in the three pairs of guide slots 13. In this embodiment, in order to improve the stability of the transmission, the length of the fixing block 15 is more than half the length of a single hall door, and the fixing block 15 is connected to the hall door by bolts.
[0048] The drive motor 2 is installed at the top of the frame 1. In this embodiment, the drive motor 2 is a dual-output shaft drive motor. The two output shafts of the drive motor 2 are respectively matched with the input gear of the gear box 3 through a pulley 21, a synchronous belt 22 and a synchronous gear 23 to drive the two sets of gear boxes 3 to operate.
[0049] Finally, the goal of the drive motor driving the triple landing door to rise or fall at different operating speeds is achieved through the gear box and the transmission belt.
[0050] Working principle description:
[0051] Take the attached figure as an example to illustrate:
[0052] From top to bottom are the slow door 51, the middle door 52 and the shutter 53. The slow door 51 is driven to rise and fall by the first pulley 37 through the transmission belt and the fixed block, the middle door 52 is driven to rise and fall by the second pulley 38 through the transmission belt and the fixed block, and the shutter 53 is driven to rise and fall by the third pulley 39 through the transmission belt and the fixed block.
[0053] When the elevator door is closed, the slow door 51, the middle door 52 and the shutter 53 are shown in the figure, which seal the elevator door and leave a space on the upper part for the hall doors to be accommodated in the space after they are raised to a higher height. This space is located in the hoistway and is not connected to the door opening.
[0054] When the elevator needs to be opened, the drive motor 2 rotates forward to drive the gearbox. The three pulleys on the output side of the gearbox are synchronously lifted at a speed of 1:2:3. When they reach the space left above, the triple hall doors mostly overlap due to the speed difference, thus realizing the opening of the elevator hall door.
[0055] When the elevator needs to be closed, the drive motor reverses, drives the gear box to run, and the triple landing door returns to its original position at the original speed difference, closes the landing door, and returns to the state shown in the figure.
[0056] This linkage method is achieved through the speed change of the gear box, avoiding the introduction of a direct linkage structure between the three hall doors, thereby simplifying the structure. Steel ropes and chains are no longer used, ensuring the durability and economy of the structure, which is especially suitable for home environments.
[0057] Finally, it should be noted that: The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of this patent.
Claims
1. A gear-driven vertical lifting mechanism for a household elevator hall door, characterized by: Including frame, drive motor, gearbox and triple landing door; The frame is a rectangular elevator frame, and three vertically arranged and mutually parallel guide chutes are respectively provided on the inner sides of the left and right frames in the thickness direction, and the guide chutes of the left and right frames are arranged in pairs. The top end of the frame is used to install the drive motor and the gear box; The gearbox is provided with two groups, which are respectively arranged at the top of the left frame and the top of the right frame. Three pulleys with different speeds are provided on the output side of the gearbox. The positions of the three pulleys correspond to the three guide chutes respectively. The bottom end of each guide chute is provided with a pulley of the same specification as the top. The pulleys at the bottom and top of each guide chute are driven by a transmission belt, and a fixed block is installed on the transmission belt. The driving motor is installed on the top of the frame, and is used to drive the two sets of gear boxes to operate; The two ends of the triple hall door are respectively embedded in the three pairs of guide slides on the left and right sides, and are connected and fixed with the three pairs of fixing blocks in the three pairs of guide slides; The driving motor drives the triple landing door to rise or fall at different operating speeds through a gear box and a transmission belt.
2. The gear-driven household elevator hall door vertical lifting mechanism according to claim 1, characterized in that: The gearbox includes a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a sixth gear, a first pulley, a second pulley, a third pulley and two transmission shafts; The first gear, the second gear and the third gear are coaxially fixed to the first transmission shaft, and the first gear is an input gear; The first pulley, the fourth gear, the second pulley, the fifth gear, the third pulley and the sixth gear are arranged in sequence and rotatably matched with the second transmission shaft, the first pulley and the fourth gear are fixed to each other, the second pulley and the fifth gear are fixed to each other, the third pulley and the sixth gear are fixed to each other, the first gear is meshed with the fourth gear, the second gear is meshed with the fifth gear core, and the third gear is meshed with the sixth gear; The first pulley, the second pulley and the third pulley are three output pulleys of the gear box.
3. The gear-driven household elevator hall door vertical lifting mechanism according to claim 2, characterized in that: The diameters of the first gear, the second gear and the third gear increase sequentially.
4. The gear-driven household elevator hall door vertical lifting mechanism according to claim 3, characterized in that: The diameters of the fourth gear, the fifth gear and the sixth gear decrease in sequence.
5. The gear-driven household elevator hall door vertical lifting mechanism according to claim 4, characterized in that: The first pulley, the second pulley and the third pulley have the same specifications.
6. The gear-driven household elevator hall door vertical lifting mechanism according to claim 5, characterized in that: The first pulley, the second pulley and the third pulley respectively correspond to the three guide grooves on the same side in the thickness direction, and the upper ends of the three transmission belts are respectively in transmission cooperation with the three pulleys.
7. The gear-driven household elevator hall door vertical lifting mechanism according to claim 6, characterized in that: The speed ratio of the first pulley, the second pulley and the third pulley is 1:2:
3.
8. The gear-driven household elevator hall door vertical lifting mechanism according to claim 7, characterized in that: The drive motor is a dual-output shaft drive motor, and the two output shafts of the drive motor are respectively matched with the input gear of the gear box through a pulley, a synchronous belt and a synchronous gear.
9. The gear-driven household elevator hall door vertical lifting mechanism according to claim 8, characterized in that: The length of the fixing block is more than half of the length of a single hall door, and the fixing block is connected to the hall door by bolts.
10. The gear-driven household elevator hall door vertical lifting mechanism according to claim 1, characterized in that: The triple hall doors are slow door, middle door and shutter door from top to bottom and from inside to outside.