Single-screw household elevator with top driving structure

Abstract

The invention belongs to the technical field of single-screw household elevators, and particularly relates to a single-screw household elevator with a top driving structure, which comprises a support frame, a standing plate is slidably mounted in the support frame, a connecting plate and a fixing plate are fixedly mounted at the top of the standing plate, and a top plate is fixedly mounted at the top of the connecting plate. Two connecting rods are fixedly mounted on one side of the connecting plate, a driving motor is fixedly mounted at the top of the supporting frame, the output end of the driving motor penetrates through the top of the supporting frame and is fixedly provided with a threaded rod, the bottom end of the threaded rod penetrates through the top plate and the standing plate, and a plurality of limiting plates are fixedly mounted in the supporting frame; the elevator is compact in structure and suitable for various household residence scenes, meanwhile, depending on the self-locking characteristic of screw transmission, the risks of falling and slipping of the elevator car are fundamentally eradicated, the safety coefficient of the elevator is remarkably improved, transmission is stable in the lifting process, operation noise is low, and the elevator is safe and reliable. And the household elevator taking experience is greatly optimized.

Description

Technical Field

[0001] This invention belongs to the field of single-screw home elevator technology, and particularly relates to a single-screw home elevator with a top drive structure. Background Technology

[0002] With the improvement of living conditions for urban and rural residents, villas, duplexes, and split-level houses are becoming increasingly popular. As a result, the demand for home elevators for private residential settings is rising year by year. Home elevators differ from commercial elevators in that their core requirements are compact structure, low installation threshold, safe and stable operation, and convenient operation. At the same time, they need to be able to meet the personalized elevator riding needs of family members of different ages and physical conditions.

[0003] In existing technologies, the drive mechanisms of home elevators are mainly traction and hydraulic. Traction home elevators require supporting components such as counterweight structures and shaft guide rails, and have high requirements for shaft dimensions, top floor height, and pit depth. The overall structure is complex, and the installation and maintenance costs are high. In addition, there are safety risks such as car slippage and falls, making them unsuitable for small apartments and low-ceilinged homes. Screw elevators, with their good transmission self-locking and high fall protection, are gradually being used in home applications. However, the existing screw home elevator drive structure layout is unreasonable, making it difficult to balance smooth operation and space utilization. The humanized adaptation design is seriously lacking. The handrails in the car are mostly fixed and cannot be flexibly adjusted according to the height of the users. It is difficult to adapt to the handrail needs of people of different heights, such as children and adults. Not only is the user comfort poor, but people are also prone to falling due to improper handrail posture, posing a safety hazard. In view of this, we propose a single screw home elevator with a top drive structure. Summary of the Invention

[0004] The purpose of this invention is to provide a single-screw home elevator with a top drive structure to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a single-screw home elevator with a top drive structure, comprising: A support frame has a standing plate slidably installed inside it. A connecting plate and a fixing plate are fixedly installed on the top of the standing plate. A top plate is fixedly installed on the top of the connecting plate. Two connecting rods are fixedly installed on one side of the connecting plate. A drive motor is fixedly installed on the top of the support frame. The output end of the drive motor passes through the top of the support frame and is fixedly installed with a threaded rod. The bottom end of the threaded rod passes through the top plate and the standing plate. Several limiting plates are fixedly installed inside the support frame. Several mounting brackets are fixedly installed around the standing plate and the top plate. Several limiting wheels are rotatably installed on the mounting brackets. The limiting wheels abut against the limiting plates. Two lifting slots are opened on one side of the fixing plate. The same handrail is slidably installed in the two lifting slots. A limiting component, located within the handrail and used to limit the movement of the handrail; A seat plate is rotatably mounted on one side of a fixed plate. Several reinforcing ribs are fixedly mounted on one side of the seat plate, and a buffer pad is fixedly mounted at the bottom of the reinforcing ribs. A fixing component is located on a fixing plate and is used to fix the base plate.

[0006] In this technical solution, when in use, personnel can start the drive motor, and the output shaft of the drive motor will drive the threaded rod to rotate. Under the action of the thread, the rotation of the threaded rod will drive the standing plate and the top plate to rise and fall, so that the elevator can operate normally. Moreover, the threaded rod can make the elevator rise and fall more stable and will not fall, with a high safety factor. When people are riding the elevator, they can hold the handrail to prevent them from falling. At the same time, the handrail can be released by the limit component, and people can move the handrail up and down to adjust it to a suitable height to ensure that the handrail can be used by people of different heights. When there are elderly people in the family, the seat can be released by the fixing components when the elderly are riding the elevator. The seat can then be opened until the cushioning pad is pressed against the fixing plate. The elderly can then sit on the seat and use the elevator, ensuring better protection for their safety and improving their comfort and safety. When not in use, the seat can be folded up, saving space.

[0007] In the above technical solution, the limiting component further includes: Two sliding grooves are provided, both of which are located within the handrail. Limiting blocks are slidably installed within the sliding grooves. Several limiting holes are provided on one side of the lifting groove. One end of each limiting block passes through one side of the sliding groove and extends to one of the limiting holes. A spring is provided at the other end of each limiting block and within the sliding groove. The other ends of both limiting blocks are fixedly installed with the same pull rope. A pull groove is provided within the handrail. One end of the pull rope extends into the pull groove and is fixedly installed with a pull ring.

[0008] In this technical solution, when people are riding the elevator, they can hold onto the handrail to prevent them from falling. They can also pull the ring, which will move the rope. The rope will move the two limit blocks until one end of each limit block moves out of its corresponding limit hole. At this point, the two limit blocks can release the handrail, and people can move the handrail up and down to adjust it to a suitable height, ensuring that the handrail can accommodate users of different heights.

[0009] In the above technical solution, one end of the limiting block is inserted into the limiting hole, both ends of the spring are tightly welded to the limiting block and the inner wall of the sliding groove, and one end of the pull rope is slidably connected to the pull groove.

[0010] In this technical solution, it is ensured that one end of the limiting block can be inserted into the limiting hole, ensuring the structural stability of the spring and ensuring that one end of the pull rope can slide normally in the pull groove.

[0011] In the above technical solution, the fixing component further includes: A rectangular block is fixedly installed on one side of a fixed plate and above a base plate. A groove is formed inside the rectangular block, and a spring block is slidably installed in the groove. The bottom end of the spring block passes through the bottom of the groove and extends into the base plate. Three round rods are fixedly installed at the top of the groove, and springs are sleeved on the round rods. Rotation slots are formed inside the fixed plate and on both sides of the base plate. Rotation rods are rotatably installed in the rotation slots. One end of the rotation rod passes through one side of the rotation slot and is coaxially connected to the base plate. A torsion spring is sleeved on the rotation rod and inside the rotation slot.

[0012] In this technical solution, when there are elderly people at home, they can press a spring block while riding the elevator. The spring block moves upward and compresses three springs until the bottom of the spring block moves out of the seat plate. At this point, the spring block can release the seat plate. Under the torsional force of the two torsion springs, the two torsion springs will drive the two rotating rods to rotate. The rotation of the two rotating rods will drive the seat plate to open until the buffer pad touches the fixed plate. At this point, the elderly can sit on the seat plate and use the elevator, ensuring better protection for the elderly's safety and improving their comfort and safety. When not in use, the seat plate can be folded up, saving space.

[0013] In the above technical solution, the bottom end of the spring block is inserted into the base plate, the two ends of the second spring are respectively tightly welded to the top of the spring block and the groove, and the two ends of the torsion spring are respectively tightly welded to the rotating rod and the inner wall of the rotating groove.

[0014] In this technical solution, it is ensured that the bottom end of the spring block can be inserted into the base plate, thus ensuring the structural stability of the second spring and the structural stability of the torsion spring.

[0015] In the above technical solution, the threaded rod is threadedly connected to the standing plate and the top plate, and the output shaft of the drive motor is rotatably connected to the support frame.

[0016] In this technical solution, it is ensured that the rotation of the threaded rod can drive the standing plate and the top plate to rise and fall, and that the output shaft of the drive motor can rotate normally within the support frame.

[0017] Furthermore, the above technical solution also includes: Two guide rods are symmetrically fixedly mounted on the connecting plate, and buffer springs are sleeved on the guide rods.

[0018] In this technical solution, the buffer spring can cushion the elevator and prevent it from being damaged by collision when it rises or falls to the top.

[0019] In the above technical solution, the bottom end of the buffer spring is further welded tightly to the connecting plate.

[0020] In this technical solution, the structural stability of the buffer spring and the connecting plate is ensured.

[0021] The beneficial effects of this invention are: 1. This single-screw home elevator with a top drive structure uses a drive motor to rotate the screw rod, which in turn drives the standing platform and the top plate to rise and fall synchronously through screw transmission, achieving stable elevator operation. This drive structure greatly simplifies the overall structure of the elevator, reduces the space requirements for the shaft, top floor, and pit, and is compact in structure, suitable for various residential scenarios. At the same time, relying on the self-locking characteristics of the screw drive, it fundamentally eliminates the risk of car falling or slipping, significantly improving the safety factor of the elevator. Moreover, the transmission is smooth during the lifting process, with low operating noise, greatly optimizing the home elevator riding experience.

[0022] 2. This single-screw home elevator with a top-drive structure uses a pull ring, pull rope, and limit block to quickly release the handrail's limit lock by simply pulling the pull ring, allowing for vertical adjustment of the handrail height. This allows for rapid adjustment to a position suitable for users of different heights, meeting the handrail gripping needs of people of all ages. It effectively prevents falls due to discomfort while riding the elevator, balancing comfort and safety. Furthermore, the handrail can be quickly reset and locked after adjustment. The limit structure is stable and reliable, and the operation is simple and convenient, requiring no additional tools for adjustment.

[0023] 3. This single-screw home elevator with a top-driven structure is equipped with a folding seat that can be unlocked with one button and automatically unfolded. For elderly users, simply pressing the spring releases the seat's fixed position. Under the torque of the torsion spring, the rotating rod automatically unfolds the seat, allowing the elderly to sit on it while riding the elevator. This effectively avoids the physical exertion and risk of falls associated with standing, significantly improving the comfort and safety of elderly users. When not in use, the seat can be quickly retracted and locked, completely stored in the side wall of the car, without occupying extra space inside the car or affecting the normal use of the elevator by other users. It perfectly balances space utilization with the needs of special groups. Attached Figure Description

[0024] Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is the second schematic diagram of the overall structure of the present invention; Figure 4 This is a schematic diagram of the regional structure of the connecting rod in this invention; Figure 5 This is a cross-sectional structural diagram of the fixing plate in this invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B; Figure 7 For the present invention Figure 5 Enlarged structural diagram at point C; Figure 8 For the present invention Figure 5 Enlarged structural diagram at point D; Figure 9 This is a detailed internal structural diagram of the base plate in this invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point E in the middle.

[0025] The markings in the diagram are as follows: 1. Support frame; 2. Standing plate; 3. Connecting plate; 4. Top plate; 5. Connecting rod; 6. Threaded rod; 7. Drive motor; 8. Limiting plate; 9. Mounting bracket; 10. Limiting wheel; 11. Guide rod; 12. Buffer spring; 13. Fixing plate; 14. Lifting groove; 15. Handrail; 16. Sliding groove; 17. Limiting block; 18. Spring one; 19. Pull rope; 20. Pull groove; 21. Pull ring; 22. Rotating groove; 23. Rotating rod; 24. Torsion spring; 25. Seat plate; 26. Reinforcing rib; 27. Buffer pad; 28. Rectangular block; 29. ​​Groove; 30. Spring block; 31. Round rod; 32. Spring two; 33. Limiting hole. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0030] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0031] Example 1: Please see Figures 1-10 As shown, this embodiment provides a single-screw home elevator with a top drive structure, including: A support frame 1 is provided, in which a standing plate 2 is slidably installed. A connecting plate 3 and a fixing plate 13 are fixedly installed on the top of the standing plate 2. A top plate 4 is fixedly installed on the top of the connecting plate 3. Two connecting rods 5 are fixedly installed on one side of the connecting plate 3. A drive motor 7 is fixedly installed on the top of the support frame 1. The output end of the drive motor 7 passes through the top of the support frame 1 and is fixedly installed with a threaded rod 6. The bottom end of the threaded rod 6 passes through the top plate 4 and the standing plate 2. Several limiting plates 8 are fixedly installed inside the support frame 1. Several mounting brackets 9 are fixedly installed around the standing plate 2 and the top plate 4. Several limiting wheels 10 are rotatably installed on the mounting brackets 9. The limiting wheels 10 abut against the limiting plates 8. Two lifting grooves 14 are opened on one side of the fixing plate 13. The same handrail 15 is slidably installed in the two lifting grooves 14. A limiting component is located within the handrail 15 and is used to limit the handrail 15. Seat plate 25 is rotatably mounted on one side of fixed plate 13. Several reinforcing ribs 26 are fixedly mounted on one side of seat plate 25, and a buffer pad 27 is fixedly mounted on the bottom of the reinforcing ribs 26. A fixing component is located on the fixing plate 13 and is used to fix the base plate 25.

[0032] In use, the operator can start the drive motor 7, and the output shaft of the drive motor 7 will drive the threaded rod 6 to rotate. Under the action of the thread, the rotation of the threaded rod 6 will drive the standing plate 2 and the top plate 4 to rise and fall, so that the elevator can operate normally. The threaded rod 6 can make the elevator rise and fall more stable and will not fall, with a high safety factor. When people are riding the elevator, they can hold the handrail 15 to prevent them from falling. At the same time, the handrail 15 can be released through the limit component, and people can move the handrail 15 up and down to adjust it to a suitable height, ensuring that the handrail 15 can be adapted to users of different heights. When there are elderly people at home, the seat 25 can be released from the fixing component when the elderly person is riding the elevator. At this time, the seat 25 can be opened until the cushion 27 is pressed against the fixing plate 13. The elderly person can then sit on the seat 25 to use the elevator, which can better protect the safety of the elderly person and improve the comfort and safety of the elderly person when riding. When not in use, the seat 25 can also be folded up, which will not take up extra space.

[0033] Example 2: This embodiment provides a single-screw home elevator with a top drive structure. In addition to the technical solutions described in the above embodiments, it also has the following technical features, including a limiting component: Two sliding grooves 16 are provided in the handrail 15. Limiting blocks 17 are slidably installed in the sliding grooves 16. Several limiting holes 33 are provided on one side of the lifting groove 14. One end of the limiting block 17 passes through one side of the sliding groove 16 and extends to one of the limiting holes 33. A spring 18 is provided at the other end of the limiting block 17 and located in the sliding groove 16. The same pull rope 19 is fixedly installed at the other end of the two limiting blocks 17. A pull groove 20 is provided in the handrail 15. One end of the pull rope 19 extends into the pull groove 20 and is fixedly installed with a pull ring 21.

[0034] When people are riding the elevator, they can hold onto the handrail 15 to prevent them from falling. They can also pull the ring 21, which will move the rope 19. The movement of the rope 19 will move the two limit blocks 17 until one end of each limit block 17 moves out of its corresponding limit hole 33. At this point, the two limit blocks 17 can release the handrail 15, and people can move the handrail 15 up and down to adjust it to a suitable height, ensuring that the handrail 15 can accommodate users of different heights.

[0035] Example 3: This embodiment provides a single-screw home elevator with a top drive structure. In addition to the technical solution of the above embodiment, it also has the following technical features: one end of the limiting block 17 is inserted into the limiting hole 33; both ends of the spring 18 are tightly welded to the inner wall of the limiting block 17 and the sliding groove 16, respectively; and one end of the pull rope 19 is slidably connected to the pull groove 20.

[0036] Specifically, this ensures that one end of the limiting block 17 can be inserted into the limiting hole 33, guarantees the structural stability of the spring 18, and ensures that one end of the pull rope 19 can slide normally within the pull groove 20.

[0037] Example 4: This embodiment provides a single-screw home elevator with a top drive structure. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the fixing components include: A rectangular block 28 is fixedly installed on one side of the fixed plate 13 and above the seat plate 25. A groove 29 is provided in the rectangular block 28. A spring block 30 is slidably installed in the groove 29. The bottom end of the spring block 30 passes through the bottom of the groove 29 and extends into the seat plate 25. Three round rods 31 are fixedly installed on the top of the groove 29. Springs 32 are sleeved on the round rods 31. Rotating grooves 22 are provided in the fixed plate 13 and on both sides of the seat plate 25. A rotating rod 23 is rotatably installed in the rotating groove 22. One end of the rotating rod 23 passes through one side of the rotating groove 22 and is coaxially connected to the seat plate 25. A torsion spring 24 is sleeved on the rotating rod 23 and in the rotating groove 22.

[0038] When there are elderly people in the family, they can press the spring block 30 while riding the elevator. The spring block 30 moves upward and compresses the three springs 32 until the bottom of the spring block 30 moves out of the seat plate 25. At this time, the spring block 30 can release the seat plate 25. Under the torsional force of the two torsion springs 24, the two torsion springs 24 will drive the two rotating rods 23 to rotate. The rotation of the two rotating rods 23 will drive the seat plate 25 to open until the buffer pad 27 abuts against the fixed plate 13. At this time, the elderly can sit on the seat plate 25 to use the elevator, which can better protect the safety of the elderly and improve their comfort and safety. When not in use, the seat plate 25 can be folded up and will not take up extra space.

[0039] Example 5: This embodiment provides a single-screw home elevator with a top drive structure. In addition to the technical solutions of the above embodiments, it also has the following technical features: the bottom end of the spring block 30 is inserted into the seat plate 25; the two ends of the spring 32 are respectively tightly welded to the top of the spring block 30 and the groove 29; and the two ends of the torsion spring 24 are respectively tightly welded to the inner wall of the rotating rod 23 and the rotating groove 22.

[0040] Specifically, it is ensured that the bottom end of the spring block 30 can be inserted into the seat plate 25, thus ensuring the structural stability of the second spring 32 and the torsion spring 24.

[0041] Example 6: This embodiment provides a single-screw home elevator with a top drive structure. In addition to the technical solutions of the above embodiments, it also has the following technical features: the threaded rod 6 is threadedly connected to the standing plate 2 and the top plate 4, and the output shaft of the drive motor 7 is rotatably connected to the support frame 1.

[0042] Specifically, it ensures that the rotation of the threaded rod 6 can drive the standing plate 2 and the top plate 4 to rise and fall, and ensures that the output shaft of the drive motor 7 can rotate normally within the support frame 1.

[0043] Example 7: This embodiment provides a single-screw home elevator with a top drive structure. In addition to the technical solutions described in the above embodiments, it also has the following technical features: Two guide rods 11 are symmetrically fixedly installed on the connecting plate 3, and buffer springs 12 are sleeved on the guide rods 11.

[0044] The buffer spring 12 can cushion the elevator and prevent it from being damaged by a collision when it rises or falls to the top.

[0045] Example 8: This embodiment provides a single-screw home elevator with a top drive structure. In addition to the technical solutions of the above embodiments, it also has the following technical features: the bottom end of the buffer spring 12 is tightly welded to the connecting plate 3.

[0046] This ensures the structural stability of the buffer spring 12 and the connecting plate 3.

[0047] Working principle: When in use, the operator can start the drive motor 7. The output shaft of the drive motor 7 will drive the threaded rod 6 to rotate. Under the action of the thread, the rotation of the threaded rod 6 will drive the standing plate 2 and the top plate 4 to rise and fall, so that the elevator can operate normally. The threaded rod 6 can make the elevator rise and fall more stable and will not fall, with a high safety factor. When people are riding the elevator, they can hold onto the handrail 15 to prevent them from falling. They can also pull the ring 21, which will move the rope 19. The movement of the rope 19 will move the two limit blocks 17 until one end of each limit block 17 moves out of the corresponding limit hole 33. At this point, the two limit blocks 17 can release the handrail 15, and people can move the handrail 15 up and down to adjust it to a suitable height, ensuring that the handrail 15 can be adapted to users of different heights. When there are elderly people at home, they can press the spring block 30 while riding the elevator. The spring block 30 moves upward and compresses the three springs 32 until the bottom of the spring block 30 moves out of the seat plate 25. At this time, the spring block 30 can release the seat plate 25. Under the torsional force of the two torsion springs 24, the two torsion springs 24 will drive the two rotating rods 23 to rotate. The rotation of the two rotating rods 23 will drive the seat plate 25 to open until the buffer pad 27 abuts against the fixed plate 13. At this time, the elderly can sit on the seat plate 25 to use the elevator, which can better protect the safety of the elderly and improve their comfort and safety. When not in use, the seat plate 25 can be folded up, which will not take up extra space.

[0048] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A single-screw home elevator with a top drive structure, characterized in that, include: A support frame (1) is provided, in which a standing plate (2) is slidably installed. A connecting plate (3) and a fixing plate (13) are fixedly installed on the top of the standing plate (2). A top plate (4) is fixedly installed on the top of the connecting plate (3). Two connecting rods (5) are fixedly installed on one side of the connecting plate (3). A drive motor (7) is fixedly installed on the top of the support frame (1). The output end of the drive motor (7) passes through the top of the support frame (1) and is fixedly installed with a threaded rod (6). The bottom end of the rod (6) passes through the top plate (4) and the standing plate (2). Several limiting plates (8) are fixedly installed inside the support frame (1). Several mounting frames (9) are fixedly installed around the standing plate (2) and the top plate (4). Several limiting wheels (10) are rotatably installed on the mounting frames (9). The limiting wheels (10) abut against the limiting plates (8). Two lifting grooves (14) are opened on one side of the fixed plate (13). The same handrail (15) is slidably installed in the two lifting grooves (14). A limiting component, which is located inside the handrail (15) and is used to limit the handrail (15); Seat plate (25), the seat plate (25) is rotatably mounted on one side of fixed plate (13), and a number of reinforcing ribs (26) are fixedly mounted on one side of the seat plate (25), and a buffer pad (27) is fixedly mounted on the bottom of the reinforcing ribs (26). A fixing component is located on a fixing plate (13) and is used to fix the base plate (25).

2. A single-screw home elevator with a top drive structure according to claim 1, characterized in that, The limiting component includes: Two sliding grooves (16) are provided in the handrail (15). Limiting blocks (17) are slidably installed in the sliding grooves (16). Several limiting holes (33) are provided on one side of the lifting groove (14). One end of the limiting block (17) passes through one side of the sliding groove (16) and extends to one of the limiting holes (33). A spring (18) is provided at the other end of the limiting block (17) and located in the sliding groove (16). The same pull rope (19) is fixedly installed at the other end of the two limiting blocks (17). A pull groove (20) is provided in the handrail (15). One end of the pull rope (19) extends into the pull groove (20) and is fixedly installed with a pull ring (21).

3. A single-screw home elevator with a top drive structure according to claim 2, characterized in that, One end of the limiting block (17) is inserted into the limiting hole (33), and the two ends of the spring (18) are respectively tightly welded to the inner wall of the limiting block (17) and the sliding groove (16). One end of the pull rope (19) is slidably connected to the pull groove (20).

4. A single-screw home elevator with a top drive structure according to claim 1, characterized in that, The fixing component includes: A rectangular block (28) is fixedly installed on one side of a fixed plate (13) and above a seat plate (25). A groove (29) is provided in the rectangular block (28). A spring block (30) is slidably installed in the groove (29). The bottom end of the spring block (30) passes through the bottom of the groove (29) and extends into the seat plate (25). Three round rods (31) are fixedly installed on the top of the groove (29). A spring (32) is sleeved on the round rod (31). Rotating grooves (22) are provided in both sides of the fixed plate (13) and located in the seat plate (25). A rotating rod (23) is rotatably installed in the rotating groove (22). One end of the rotating rod (23) passes through one side of the rotating groove (22) and is coaxially connected to the seat plate (25). A torsion spring (24) is sleeved on the rotating rod (23) and located in the rotating groove (22).

5. A single-screw home elevator with a top drive structure according to claim 4, characterized in that, The bottom end of the spring block (30) is inserted into the seat plate (25), the two ends of the second spring (32) are tightly welded to the top of the spring block (30) and the groove (29) respectively, and the two ends of the torsion spring (24) are tightly welded to the inner wall of the rotating rod (23) and the rotating groove (22) respectively.

6. A single-screw home elevator with a top drive structure according to claim 1, characterized in that, The threaded rod (6) is threadedly connected to the standing plate (2) and the top plate (4), and the output shaft of the drive motor (7) is rotatably connected to the support frame (1).

7. A single-screw home elevator with a top drive structure according to claim 1, characterized in that, Also includes: Two guide rods (11) are symmetrically fixed on the connecting plate (3), and buffer springs (12) are sleeved on the guide rods (11).

8. A single-screw home elevator with a top drive structure according to claim 7, characterized in that, The bottom end of the buffer spring (12) is tightly welded to the connecting plate (3).

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