Elevator cabin movement system with the help of a screw
The screw-based elevator system addresses the bulkiness and safety concerns of traditional elevators by replacing complex components with a compact, safe, and cost-effective design that ensures zero fall risk and minimal space usage.
Patent Information
- Application Number
- IR140350140003001627
- Authority / Receiving Office
- IR · IR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-10-25
- Estimated Expiration
- 2044-05-31
AI Technical Summary
Elevators require extensive and bulky equipment, including ropes, counterweights, control rooms, and elevator shafts, which increase weight, cost, and risk of falls, necessitating complex installation and significant space usage.
A screw-based elevator movement system that eliminates these components, using a gearbox, differential, rack, and pinion motor installed under the elevator floor, connected to shoulder gear rails, ensuring safe and compact operation without additional safety equipment.
Provides 100% safety, reduces space requirements by half, lowers costs, and simplifies installation, eliminating the need for complex electrical systems and additional safety equipment.
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Abstract
Description
Description of the invention Title of the invention Elevator cabin movement system with the help of a screw. Technical background of the relevant invention The technical field of the invention is specifically related to the field of elevators, and more precisely to the elevator movement system that can move elevators between floors without using ropes, counterweights, control rooms, and elevator shafts, a device for moving elevator cabins with fewer parts and safer than similar ones that reduces the risk of elevator falls to zero. Technical problem and stating the objectives of the invention The technical problems of the invention are related to the safety and movement equipment of elevators, which fall down elevators and the large number and bulky equipment they use take up space on a floor above, and require elevator shafts, gravity-coordinating weights, long ropes that may break, and elevator fall safety equipment that itself has a large number of components to ensure that a safe elevator can be delivered to the user, all of which increases the weight of the elevator and requires many specialists to install it. But our invention does not have all the items used in current elevators mentioned in the sentences above and is simple and has few equipment ((Items that the elevator does not have an invention for include: the control room above the elevator / elevator shaft / rope / gravity balance weights / fall safety equipment, brakes and safety springs and the electrical room and many other items)). Our goal in this design is 100% safety for the user who does not need any safety equipment, and very few, low-cost, compact, and simple parts that do not require many specialists, without installation restrictions, even for one floor, which does not occupy any additional space, and the cost for one floor is the same as for a hundred floors, and only the rails are added. A description of the state of the prior art and the history of developments related to the claimed invention. There have been many problems with elevators in previous knowledge, and many advances have been made in this field, but elevators still require fundamental improvements. In this regard, we do not need to compare our invention with old knowledge. We compare our invention with current knowledge to reveal the significant advances in the invention. In this comparison, we compare the latest technology, the MRL elevator. First, we remove only one cabin from the MRL elevator and leave all other equipment aside. So with a simple calculation, we can see how many parts are used in new elevators that we have been able to eliminate and how much extra space we reduce, such as ((tow wires / counterweights / motor gearbox / control room / elevator shaft / electrical control box / emergency brakes / safety springs for falling / and many more)) Then we install the invented equipment on the room. In this invention, the total equipment that we install on the cabin takes up the space of only one elevator floor. We install the engine, differential, rack, and screw under the elevator floor, and we install a shoulder gear rail on the bases. After installing the elevator's electricity, the elevator can be used and there is no need for safety equipment because the screw system installed on the elevator remains in place without moving in the event of a power outage and moves again when the power is reconnected (the way the screw works is that it locks in place). In the event of a breakdown, after replacement warnings (additional sounds such as bearing failure) are given to replace it. If it breaks down, it does not move out of place, but locks in place. This will ensure that this cabin cannot fall in any way, even intentionally, and it is safe for the consumer. And if the elevator is larger, the screw we install for the elevator will be proportionally larger. And in terms of the volume of land that is considered for the elevator, the land used will be halved. For example, if two meters of space are considered for a one-meter MRL elevator, one meter and twenty centimeters of land is considered for an inventive elevator, and the difference in land used in apartments is extremely significant. MRL elevator patent document to: https: / / patentscope.wipo.int / search / en / detail.jsf?docId=KR375107466&_cid=P21-LYEGNZ-06827-1 Providing a solution to an existing technical problem along with an accurate, sufficient, and integrated description of the invention Considering the advanced MRL elevators, which are the latest technology, the risk of falling is still one of the main challenges of this public vehicle because the user knows that he is suspended in the air by a rope and is worried. The large and expensive equipment and the large space it occupies prompted us to make general changes to this public vehicle. We completely removed all the elevator equipment and only use the room, with new equipment, in which we use a gearbox, differential, rack and pinion motor to move the elevator, and all this equipment is placed on the floor of the elevator and connected to the rails. All the parts used in this elevator are small and are installed completely under the elevator room (Figure A) and occupy very little space. Access for installation and repair of parts is possible from inside the elevator room. There is no need for weights, wire ropes, and many of the consumables of all elevators. There is no need for safety equipment for possible falls. This elevator is low-equipment and low-cost for users. This system consists of a differential (number 24) that is located in the center of the elevator floor on the outside and is connected to the elevator floor (number 12) and four cardan shafts are connected to it (number 15) that reach the four legs of the elevator where the shoulder gear rail is installed (number 8) and are connected to the screw (number 14). On the other hand, there is a gearbox motor that is connected to the differential from the gearbox output (number 17) and the power is transferred from the motor to the gearbox and from the gearbox to the differential (number 24) and then to the cardan shaft (number 15) and finally to the screw ( No. 11) that the screw rotates on the shoulder gear rails (No. 8) by rotating left and right to move the elevator up and down.The rotation of the screw on the shoulder gear rails is made in such a way that there are balls between the screw and the shoulder gear rail (Figure 38), which facilitates the movement of the screw on the rail and makes it possible without wear and tear, and prevents the screw from vibrating and moving at unexpected angles, so as to create a smooth and silent movement for the screw, to prevent the screw from wearing out with the weight that is mounted on it, and simulates the movement of a ball bearing. This movement system for elevators does not require advanced and complex electrical equipment and is easily installed, and provides the movement of the motor and screw to the left and right for the elevator to go up and down so that the elevator can easily move up and down. All of this equipment is installed inside and under the elevator and will have reliable movement between floors. Equipment such as the helix rod (number 6) and the bearing (number 3) and its associated equipment (numbers 9, 10, 3, 4, 5) all serve the screw to eliminate excess motion and create a uniform motion for the elevator. Using a screw in this system will guarantee 100% safety of this system because in the event of a failure or breakage of any part of this movement system, the elevator will stop in place and until it is repaired, the elevator cannot be moved or continue moving with the defective part, the screw system will not allow this. In a non-contact ball screw system, the screw and the rail do not wear each other, and the balls roll between the rail and the screw. The balls are placed in the rail groove in such a way that seventy percent of the balls are inside the rail, thirty percent of the balls are inside the screw groove, and ten percent of the space remains where the screw does not contact the rail. To install the screw, the balls must be placed one by one from above and the lower part must be rotated so that the screw is mounted on the rail. Once the screw is mounted on the rail, the screw cannot be separated from the rail in any way. It can only be removed from the beginning or end of the rail or the balls must be removed so that the screw can exit its rail. In this way, the non-contact screw can act like a bearing and move with high weight and speed. Explanation of shapes, maps and diagrams Map No. A) A view of the propulsion system installed on the elevator. Map No. B) 3D view of the differential and the manual auger that connects to the differential for manual rotation. Map No. C) View of the motion system on the room from the elevator floor angle. Drawing No. D) 3D image of the screw and details of the screw and installation on the shoulder gear rail. Figure 1) shows the elevator cabin. Figure 2) The base and movement rails on which the screw rides. Figure 3) Balancer bearing holding the screw motion. Figure 4) Bearing retaining screw and shaft. Figure 5) The connecting rod screw. Figure 6) The cam bar ensures uniform movement of the screw and bearings. Figure 7) The hoisting rod connected to the elevator car. Figure 8) Shoulder gear rails. Figure 9) Bearing connection location on top of the screw. Figure 10) Bearing and retainer on the top of the screw. Figure 11) Screw mounted on rail. Figure 12) Brackets holding the propeller shaft and differential connected to the chamber. Figure 13) Gears at the end of the screw for the direction of screw rotation connected to the cardan shaft gear. Figure 14) A gear that transfers power from the drive shaft to the screw. Figure 15) Gardon's mill. Figure 16) Bearings holding the propeller shaft. Figure 17) Gearbox motor system. Figure 18) The upper part of the differential and the connection point of the manual clutch. Figure 19) Upper differential gear. Figure 20) Propeller shaft gear inside the differential. Figure 21) Differential oil chamber. Figure 22) The gear wheel is the lower part of the differential, the part to which the engine is connected. Figure 23) Bearing where the engine connects to the differential shell. Figure 24) Differential shell. Figure 25) Balls between the screw and the rails. Figure 26) How to turn the engine when the power is off. Figure 27) Manual rotation achra handles. Figure 28) Manual rotation wrench head in wrench. Figure 29) Hand wrench connection point in the differential. Figure 30) Screws connecting the wrench holder to the differential. Figure 31) Upper differential gear. Figure 32) Lower differential gear. Figure 33) The gears of the propeller shaft that are located inside the differential. Figure 34) 3D view of the inside of the differential. Figure 35) Elevator floor. Figure 36) Elevator wall. Figure 37) The connection location of the electric motor in the differential from the elevator floor view. Figure 38) A view of the ball placement ratio inside the screw and the shoulder gear rail. Figure 39) A view of the placement of the screw on the rail. Figure 40) The shape of a worm gear cut from a side view. Figure 41) A cutaway view of a screw from above. Figure 42) A section of a screw from a side view. Figure 43) The lower gears of the screw. The connection point of the cardan shaft gear to the screw. Figure 44) The location of the bearing connection on the top of the screw. Figure 45) The lower screw bearing connection location. Figure 46) 3D screw from the bottom view of the screw showing the location of the balls. Figure 47) 3D screw from the top view of the screw. Figure 48) Snail fins. Figure 49) Location of the balls in the screw. A clear and precise statement of the advantages of the claimed invention over prior inventions. This invention, with a small number of parts and no control room, reduces the extra space for the motor, reduces the risk of the room falling to zero, reduces the number of wire ropes, and many other things. Installing it even on one floor will make this elevator unique in its kind. In addition, the price for installing it on 100 floors is the same as for one floor, and only the rails are extra, which is one of the advantages of this invention. Description of at least one implementation method for implementing the invention The implementation method for this invention is that we need only one room and the bases of an MRL elevator, which is the latest technology in the world, and we open all other equipment and connect the invented system to the floor of the elevator and install the shoulder gear rail on the bases and install the screw on the shoulder gear rail connected to the guardrail. From now on, the elevator will be usable and the control room on the upper floor and the elevator shaft will remain unused. Equipment such as weights and ropes are not needed. Brakes and safety springs are not needed either. This implementation method can be used for hydraulic elevators and elevators, and all elevators can be equipped in this way. In addition, if we use the space of the current elevator, we can enlarge the room and use the space occupied by the ropes and weights. Explicit mention of the industrial application of the invention There are no restrictions or price changes in all buildings from one floor to one hundred floors, which makes the spiral design of this elevator very useful in the elevator industry.
Claims
Claim What is claimed: Claim 1) Elevator cabin movement system with the help of a screw, a system in which all the elevator room movement equipment is connected to the floor of the elevator room and the power is transferred from the motor to the differential and then to the rack and pinion and then to the screw, and by rotating the screw left and right on the shoulder gear rail, it moves the room up and down, in addition to the fact that the screw has no contact with the shoulder gear rail. Which consists of the following components; - Gearbox motor for differential movement. - Differential that transmits power to the four rack and pinion shafts. - Rack and pinion shaft that transmits power to the four screws. - Screw that rotates on the shoulder gear rail with the force of the rack. - Shoulder gear rails with long steps that move up and down on the rail by rotating the screw. - Facilitating balls that prevent the screw from contacting the rail by being placed on the rail. - Fasteners that fix the screw to the rail that prevent the screw from moving away from the rail. - Bearings that facilitate the movement of the screw on the rail, which makes the movement of the screw smooth and vibration-free. Claim 2) According to claim number 1: A non-contact ball screw conveyor system that enables the movement of the screw on the shoulder gear rail without contact with each other, and has balls between the rail and the screw that prevent contact with each other, and forms a bearing-like speed, with a weight bearing greater than its equivalent bearing and does not cause wear and friction. Claim 3) According to claim number 2: This screw conveyor system can create continuous motion for the cabin at high speed and without wear, friction, or vibration, and does not derail, and does not require safety devices, because the screws do not return force and the structure of the ball screw is such that it does not derail. Claim 4) According to claim number 3: The inventive transfer system has balls between the screw and the rail, thirty percent of which are located in the screw groove and sixty percent in the rail groove, and the remaining ten percent is the space between the screw and the rail, so that the screw does not contact the rail, and with the help of grease, we will experience smooth, frictionless movement. Claim 5) According to claim number 4: The inventive screw conveyor system cannot be removed from its place under any circumstances, unless we remove the balls between the screw and the rail, because the presence of the balls in the groove of the screw and the rail no longer has space to be removed. Claim 6) According to claim number 1: The non-contact screw conveyor system and the entire elevator movement system are installed under the elevator with little space and there is no need for an elevator shaft, control room, wire rope, counterweight, or fall safety systems.