Strong-drive villa elevator with overhead power

Abstract

The power-overhead strong-drive villa elevator comprises a lift car, a supporting frame is installed in a shaft located above the lift car, and a main machine power retracting and releasing assembly and a rope head clamp assembly are installed on the supporting frame; the main machine power take-up and pay-off assembly comprises a main machine shaft directly driven by driving power, a steel belt is wound on the main machine shaft, the steel belt led out of the main machine shaft downwards winds a guide wheel set on the lift car, and the end of the steel belt wound out of the guide wheel set upwards extends and is clamped to the rope head clamp assembly. Power is arranged on the top supporting frame and combined with a strong driving force structure, the overall elevator lifting structure is effectively simplified, occupied space is reduced, the elevator is particularly suitable for villa scenes with limited shaft space and limited pit depth, and the shaft space utilization rate is greatly increased.

Description

Technical Field

[0001] The invention relates to the technical field of lifting elevators, in particular to a powerfully driven villa elevator with top-mounted power. Background Art

[0002] An elevator is a vertical lift equipped with a box-shaped car, used to carry people or goods in multi-story buildings. As a means of vertical transportation, elevators have become an important and indispensable equipment in construction sites. In order to meet the needs of some users, villa elevators have developed rapidly and the demand is also increasing.

[0003] Since the hoistway of villa elevators is generally small, the requirements for hoistway space utilization are getting higher and higher. In actual applications, we often encounter hoistways with relatively small pit depth, length and width, which poses a challenge to elevator installation.

[0004] The mainstream elevator type with high market acceptance is the traction elevator. The traction elevator needs to be balanced with the car counterweight to achieve lifting and lowering. The structure is relatively complex and a machine room is also required. It occupies a large space and is not suitable for use in villa scenarios with limited shaft space. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a villa elevator with a rational structure and a top-mounted power drive, thereby effectively simplifying the overall structure of the elevator and reducing space occupancy. It is particularly suitable for villa scenes with limited shaft space and limited pit depth, and greatly improves the utilization rate of the shaft space.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A powered top-mounted strong-drive villa elevator comprises a car, a support frame is installed in a shaft above the car, a main engine power retracting and releasing assembly and a rope end clamp assembly are installed on the support frame; the main engine power retracting and releasing assembly comprises a main engine shaft directly driven by a driving power, a steel belt is wound on the main engine shaft, the steel belt led out from the main engine shaft is wound downwardly through a guide wheel group on the car, and the end of the steel belt wound from the guide wheel group extends upwardly and is clamped on the rope end clamp assembly.

[0008] As a further improvement of the above technical solution:

[0009] The guide wheel group is installed on the outer top surface of the car. The guide wheel group includes two groups of guide wheels that are spaced apart and arranged axially parallel along the winding direction of the steel belt. The steel belt led out from the main shaft is led out downward, changes direction to be horizontal above the top of the car and passes around the two groups of guide wheels in sequence. The steel belt constitutes a suspension and lifting structure for the top of the car.

[0010] The guide wheel group is installed on the bottom surface of the car, and the guide wheel group includes two groups of guide wheels that are spaced apart and axially parallel along the direction of steel belt winding; it also includes a guide wheel installed on the support frame on the outlet side of the main shaft. The steel belt that passes around the guide wheel is led downward, changes to a horizontal state under the bottom of the car and passes around the two groups of guide wheels in turn. The steel belt constitutes a suspension and lifting structure for the bottom of the car.

[0011] The main engine power retractable assembly comprises a frame with an inverted U-shaped structure, a main engine shaft is installed between two side walls of the frame for common rotation, and the main engine shaft is driven to rotate by end driving power; the bottom ends of the two walls of the frame can also extend downward to form connecting feet.

[0012] The outer wall surface of the main engine shaft is concave to form a plane structure, a pressure block is installed at the plane structure, and the end of the steel belt is pressed between the pressure block and the plane structure.

[0013] An even number of baffles are spaced apart along the axial direction on the main shaft, and the baffles are in pairs, and a limiting space for winding the corresponding steel belt is formed between the pairs of baffles.

[0014] The rope end clamp assembly is arranged transversely relative to the support frame, and a reversing wheel assembly is installed on the support frame located on the rope entry side of the rope end clamp assembly; after the steel belt is reversed to the horizontal by the reversing wheel assembly, the end of the steel belt is fixed to the rope end clamp assembly.

[0015] The reversing wheel assembly is installed on a support, and a shock-absorbing part is installed between the support and the support frame; the shock-absorbing part includes steel plates arranged at intervals above and below, and shock-absorbing pads indented along the circumferential direction are installed between the steel plates; a long stud is installed passing through the support, the upper and lower steel plates, and the support frame, and the middle part of the long stud is a smooth rod part, and the two ends of the long stud extending upward from the support and downward from the support frame are set as threaded parts, and the threaded parts at both ends of the long stud are locked with tightening nuts.

[0016] The rope end clamp assembly is arranged vertically relative to the support frame; the steel belt is led out from the guide wheel assembly of the car and extends upward and is clamped by the rope end clamp assembly.

[0017] The structure of the rope end clamp assembly is as follows: it includes a support rod passing through the clamp seat, a rope threading block is installed at the end of the support rod, a through opening is opened on the rope threading block, a steel belt is inserted from the small end of the opening and extends out from the large end, and then folded back at the large end to extend out from the small end, and a steel belt clamp is installed at the end of the steel belt extending out of the small end; a wedge block is pressed between the double-layer steel belts located inside the rope threading block; a positioning block, a gasket, an elastic part, a gasket are sequentially mounted on the support rod away from the rope threading block and located on the other side of the clamp seat, and two locking nuts are threadedly locked.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention effectively simplifies the overall structure of the elevator by arranging the power on the top support frame and combining it with a strong driving force structure, thereby reducing space occupation. It is particularly suitable for villas with limited hoistway space and limited pit depth, and greatly improves the utilization rate of the hoistway space.

[0020] The present invention also includes the following advantages:

[0021] The driving power in the main engine power retracting and extending assembly drives the main engine shaft to rotate, driving the steel belt to retract and extend on the main engine shaft, and the retraction and extension of the steel belt realizes the lifting and lowering drive of the car below.

[0022] When the main engine power retracting and releasing assembly is placed on the top, the guide wheel group can be arranged on the top or bottom surface of the car to realize the structural layout, and the lifting and lowering of the car can be realized by the winding of the steel belt.

[0023] During the steel strip winding process, the baffles on both sides form the guide and limiter to prevent the steel strip from deviating during operation, effectively ensuring the reliable, stable and smooth winding of the steel strip and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention (Example 1).

[0025] Figure 2 It is a structural schematic diagram of the present invention (Example 2).

[0026] Figure 3 for Figure 2 sectional view of .

[0027] Figure 4 It is a structural schematic diagram of the main engine power retractable assembly of the present invention.

[0028] Figure 5 The figure is a schematic diagram of the installation of the baffle on the main engine shaft of the present invention.

[0029] Figure 6 It is a schematic diagram of winding the steel belt on the main machine shaft of the present invention.

[0030] Figure 7 The figure is a schematic diagram of the installation of the baffle and the pressing block on the main engine shaft of the present invention.

[0031] Figure 8 for Figure 7 A partial enlarged view of point A in the middle.

[0032] Fig. 9 It is a schematic diagram of the horizontal arrangement of the rope end clamp assembly of the present invention.

[0033] Fig.10 The figure is a schematic diagram of installing the reversing wheel assembly of the present invention on the supporting frame.

[0034] Fig.11 It is a structural schematic diagram of the rope end clamp assembly of the present invention.

[0035] Fig.12 It is a structural schematic diagram of the rope threading block of the present invention.

[0036] Among them: 10, main engine power retracting assembly; 20, clamp seat; 30, rope head clamp assembly; 40, steel belt; 50, reversing wheel assembly; 60, support frame; 70, guide wheel group; 80, car; 90, guide wheel;

[0037] 11. Frame; 12. Main shaft; 13. Driving power; 14. Baffle; 15. Press block; 16. Fastener; 111. Connecting foot; 121. Groove; 122. Plane structure; 141. Flange;

[0038] 31. Positioning block; 32. Support rod; 33. Elastic member; 34. Washer; 35. Lock nut; 36. Latch; 37. Rope threading block; 38. Steel belt clamp; 39. Wedge block; 371. Opening;

[0039] 51. Support; 52. Shock absorber; 53. Long stud; 54. Tightening nut; 55. Short stud; 56. Axle. DETAILED DESCRIPTION

[0040] The specific implementation of the present invention is described below in conjunction with the accompanying drawings.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, a powered top-mounted strong-drive villa elevator in this embodiment includes a car 80, a support frame 60 is installed in the shaft above the car 80, and a main engine power retracting assembly 10 and a rope end clamp assembly 30 are installed on the support frame 60; the main engine power retracting assembly 10 includes a main engine shaft 12 directly driven by a driving power 13, and a steel belt 40 is wound on the main engine shaft 12. The steel belt 40 led out from the main engine shaft 12 is wound downwardly through a guide wheel group 70 on the car 80, and the end of the steel belt 40 wound from the guide wheel group 70 extends upward and is clamped on the rope end clamp assembly 30.

[0042] In this embodiment, by arranging the power on the top support frame 60 and combining it with a strong driving force structure, the overall structure of the elevator is effectively simplified and the space occupied is reduced.

[0043] In this embodiment, the driving power 13 in the main engine power retracting and releasing assembly 10 drives the main engine shaft 12 to rotate, driving the steel belt 40 to retract and release on the main engine shaft 12, and the retraction and release of the steel belt 40 realizes the lifting and lowering drive of the lower car 80.

[0044] When the main power retracting and releasing assembly 10 is placed on top, the guide wheel assembly 70 can be arranged on the top surface or the bottom surface of the car 80 to realize the structural arrangement, so that the lifting and lowering of the car 80 can be realized by the winding of the steel belt 40.

[0045] exist Figure 1 In the illustrated embodiment 1, the guide wheel group 70 is installed on the outer top surface of the car 80. The guide wheel group 70 includes two groups of guide wheels that are spaced apart and axially parallel along the winding direction of the steel belt 40. The steel belt 40 led out from the main shaft 12 is led out downward, changes direction to be horizontal above the top of the car 80 and passes around the two groups of guide wheels in turn. The steel belt 40 constitutes a suspension and lifting structure for the top of the car 80; the overall structure is simplified and the layout is reasonable and compact.

[0046] exist Figure 2 and Figure 3 In the second embodiment shown, the guide wheel group 70 is installed on the bottom surface of the car 80, and the guide wheel group 70 includes two groups of guide wheels that are spaced apart and axially parallel along the winding direction of the steel belt 40; it also includes a guide wheel 90 installed on the support frame 60 on the outlet side of the main shaft 12. The steel belt 40 that passes around the guide wheel 90 is led downward, changes to a horizontal direction below the bottom of the car 80, and passes around the two groups of guide wheels in turn. The steel belt 40 constitutes a suspension and lifting structure for the bottom of the car 80.

[0047] In this embodiment, when the guide wheel group 70 is arranged at the bottom of the car 80, since the steel belt 40 released from the upper main engine power retracting assembly 10 needs to pass through the lateral shaft of the car 80, a guide wheel 90 is provided in the outlet direction of the steel belt 40 from the main engine shaft 12, thereby effectively ensuring the constant outlet position of the steel belt 40 downward, avoiding safety and other problems caused by changes in the outlet position caused by the winding of the steel belt 40, and helping to ensure the utilization rate of the shaft.

[0048] In both the first and second embodiments, it is only necessary to arrange the support frame 60 in the shaft above the car 80, and the support frame 60 centrally installs and arranges necessary components such as the main engine power retracting assembly 10 and the rope end clamp assembly 30, so that the overall components are simplified, reasonable and compact.

[0049] like Figure 4 As shown, the main engine power retractable assembly 10 includes a frame 11 with an inverted U-shaped structure, and a main engine shaft 12 is installed between the two side walls of the frame 11 for rotation, and the main engine shaft 12 is driven to rotate by the end driving power 13; the bottom ends of the two walls of the frame 11 can also extend downward to form connecting feet 111, which effectively ensures the installation reliability on the support frame 60.

[0050] In this embodiment, one end of the main shaft 12 extends out of the frame 11 and is connected to the driving power 13, which is a common rotating drive such as a motor; common components such as brakes and encoders can be installed on the frame 11 located at the other end of the main shaft 12 to ensure the use of the elevator.

[0051] like Figure 6 and Figure 7 As shown, the outer wall surface of the main shaft 12 is concave to form a plane structure 122, and a pressure block 15 is installed at the plane structure 122. The end of the steel belt 40 is pressed between the pressure block 15 and the plane structure 122; the pressing and fixing of the end of the steel belt 40 is achieved and guaranteed by the fit between the pressure block 15 and the plane structure 122 on the main shaft 12.

[0052] In this embodiment, a steel belt 40 is used as a transmission medium. Since the thickness of the steel belt 40 is much smaller than the diameter of the steel wire rope under the same load, it has a natural advantage in reducing the diameter of the drum and the wheel group. By taking advantage of the thickness of the steel belt 40, the planar structure 122 on the main shaft 12 is combined with the structure of the pressure block 15 to reliably and smoothly fix the end of the steel belt 40. The overall structure is compact and can also match and satisfy the winding of the steel belt 40 on the main shaft 12.

[0053] In actual operation, two planar structures 122 can be arranged in parallel along the circumference of the main shaft 12, and the two planar structures 122 are respectively equipped with pressure blocks 15. The ends of the steel belt 40 are successively attached to the two planar structures 122 and then pressed by the corresponding pressure blocks 15, so that the ends of the steel belt 40 are continuously clamped and fixed twice, effectively ensuring the reliability of the fixation of the ends of the steel belt 40.

[0054] The size of the plane structure 122 in the length direction of the main shaft 12 is larger than the width of the steel belt 40. Fasteners 16 are locked from top to bottom through the pressure block 15 toward the plane structure 122. The fasteners 16 are located on both sides of the width direction of the steel belt 40. The fasteners 16 are locked to ensure that the pressure block 15 presses the steel belt 40. The overall structure is simple, and the ends of the steel belt 40 are easy to disassemble and assemble. The steel belt 40 can be quickly replaced when needed, and the steel belt 40 can be reused.

[0055] In this embodiment, the surface of the pressure block 15 that is away from the plane structure 122 is located on the same circumferential surface as the circumferential wall of the main shaft 12. The pressure block 15 and the main shaft 12 cooperate to form a split shaft, and their outer circumferences are located on the same circumferential surface, thereby ensuring the effect of the steel belt 40 after winding.

[0056] like Figure 5 As shown, an even number of baffles 14 are axially spaced apart on the main shaft 12, and the baffles 14 are paired in pairs, and the paired baffles 14 form a limiting space for winding the corresponding steel belt 40; during the winding process of the steel belt 40, the baffles 14 on both sides form a guide and limit for the steel belt 40 during winding, preventing the steel belt 40 from deviating during operation, effectively ensuring the reliable, stable and smooth winding of the steel belt 40, and ensuring safety.

[0057] In this embodiment, the baffle 14 is an annular sheet structure, and the diameter of the outer circumference of the baffle 14 is 1.5-3 times the diameter of the main shaft 12 at the mounting location; the baffle 14 with a relatively large outer diameter, on the one hand, constitutes a accommodating space for the winding steel strip 40, and limits the winding steel strip 40 on both sides; on the other hand, it can also provide a reliable winding guide for the steel strip 40 before winding, thereby ensuring smooth and effective winding.

[0058] In this embodiment, the inner edge of the baffle 14 can extend laterally along the circumferential direction to form a flange 141, and the fastening bolts pass through the flange 141 and are locked to the main shaft 12; the flanges 141 on the baffles 14 on both sides of the same groove 121 are arranged back to back; the arrangement of the flanges 141 effectively ensures the installation reliability of the baffle 14 on the main shaft 12; the two ends of the pressure block 15 can also be pressed on the inside through the flanges 141 to ensure reliable limiting of the end of the steel belt 40.

[0059] like Figure 8 As shown, in this embodiment, a groove 121 can be opened on the circumferential surface of the main shaft 12 between the edges of the planar structure 122, and the width dimension of the groove 121 is adapted to the width dimension of the steel belt 40; two pairs of baffles 14 are installed at the edges on both sides of the groove 121; the depth of the groove 121 is limited, and in actual operation, the groove 121 is used to position the initial winding of the steel belt 40 on the main shaft 12, and after the baffle 14 is installed, the baffle 14 is used to limit the winding of the steel belt 40.

[0060] When the main power retracting assembly 10 is placed on top and installed on the support frame 60 together with the rope end clamp assembly 30, the rope end clamp assembly 30 can be arranged horizontally or vertically according to the actual space conditions, such as the horizontal and vertical space dimensions of the support frame 60.

[0061] Combined with the height dimension of the main engine power retractable assembly 10, arranging the rope end clamp assembly 30 horizontally can save vertical space. Fig. 9 In the illustrated embodiment, the rope end clamp assembly 30 is arranged transversely relative to the support frame 60, and a reversing wheel assembly 50 is installed on the support frame 60 located on the rope entry side of the rope end clamp assembly 30; after the steel belt 40 is reversed to the horizontal by the reversing wheel assembly 50, the end of the steel belt 40 is fixed to the rope end clamp assembly 30.

[0062] The reversing wheel assembly 50 is mounted on a support 51, and a shock absorbing member 52 is installed between the support 51 and the support frame 60; the shock absorbing member 52 includes steel plates arranged at intervals up and down, and shock absorbing pads indented along the circumferential direction are installed between the steel plates; Fig.10As shown, a long stud 53 is installed that passes through the support 51, the upper and lower steel plates, and the support frame 60. The middle part of the long stud 53 is a bare rod part, and both ends of the long stud 53 that extends upward from the support 51 and downward from the support frame 60 are set as threaded parts. The threaded parts at both ends of the long stud 53 are locked and tightened with nuts 54.

[0063] In this embodiment, by adopting a long stud 53 structure that runs through the upper and lower parts, the shock absorber 52 can not only play a shock-absorbing role in the height direction, but also withstand the lateral force caused by the horizontal arrangement of the rope head. The long stud 53 holds the support 51 and the support frame 60, thereby avoiding the safety risk caused by the upper and lower steel plates in the shock absorber 52 being pulled off due to the lateral force.

[0064] In this embodiment, the middle part of the long stud 53 is set as a smooth rod part, which effectively avoids friction noise between the shaft and the hole. Moreover, the locking position of the tightening nuts 54 at both ends can also be limited. The length of the smooth rod part effectively guarantees the space between the support 51 and the support frame 60, ensures the shock-absorbing effect of the shock-absorbing component 52, and avoids excessive locking of the tightening nuts 54 in the full thread case, which may crush the shock-absorbing rubber pad and lose its buffering effect.

[0065] In this embodiment, the shock-absorbing components 52 include at least two groups arranged in parallel on the support frame 60. At least one group of shock-absorbing components 52 is installed using long studs 53 running through the upper and lower parts to withstand lateral forces. The upper and lower steel plates in at least one group of shock-absorbing components 52 are independently locked and fixed to the fitting support 51 and the support frame 60 using short studs 55. By installing multiple groups of shock-absorbing components 52 in parallel, the shock-absorbing effect is effectively guaranteed and the shock-absorbing requirements are met.

[0066] In this embodiment, the axle 56 at the end of the reversing wheel assembly 50 is supported on the support 51, and an inverted U-shaped locking component is downwardly buckled on the axle 56, and the bottom end of the locking component is inserted into the support 51 to achieve the installation of the reversing wheel assembly 50; a guide limit groove that adapts to the limit of the steel belt 40 can also be opened on the circumferential wall surface of the reversing wheel assembly 50.

[0067] In another embodiment, such as Figure 2 and Figure 3 As shown, in combination with the layout space on the support frame 60 , the rope end clamp assembly 30 is arranged vertically relative to the support frame 60 , and the steel belt 40 is led out from the guide wheel assembly 70 of the car 80 and extends upward and is clamped by the rope end clamp assembly 30 .

[0068] Of course, for Figure 2 and Figure 3 In the usage scenario, the rope end clamp assembly 30 can also be arranged on the bottom surface of the support frame 60 for horizontal arrangement according to the actual layout to solve the problem of insufficient horizontal space on the top surface of the support frame 60, and at the same time match the reversing wheel assembly 50 when arranged horizontally.

[0069] In actual operation, the horizontal or vertical arrangement of the rope clamp assembly 30 can be comprehensively considered according to actual conditions, such as the horizontal space and vertical space of the hoistway.

[0070] like Fig.11 and Fig.12 As shown, the structure of the rope end clamp assembly 30 is: it includes a support rod 32 that passes through the clamp seat 20, and a rope threading block 37 is installed at the end of the support rod 32. A through opening 371 is opened on the rope threading block 37. The steel belt 40 extends from the small end of the opening 371 and extends from the large end, and then folds back at the large end to extend from the small end. The end of the steel belt 40 extending from the small end is installed with a steel belt clamp 38; a wedge block 39 is pressed between the double-layer steel belts 40 located inside the rope threading block 37.

[0071] During actual operation, the steel belt 40 is inserted into the small end of the rope threading block 37 and extended out from the large end. The steel belt 40 wraps the wedge block 39 from the large end and is then stuffed back into the opening 371 of the rope threading block 37. The end of the steel belt 40 is extended from the small end and tightened, and then the steel belt clamp 38 is installed. The wedge surface between the wedge block 39 and the opening 371 is pressed against the steel belt 40 to complete the installation of the end of the steel belt 40 on the rope end clamp assembly 30.

[0072] In this embodiment, the steel band clamps 38 may be in a structure that is interlocked with each other using fasteners to prevent the steel band 40 from loosening and shrinking into the small end of the opening 371 .

[0073] A positioning block 31, a gasket 34, an elastic member 33, and a gasket 34 are sequentially mounted on the support rod 32 located on the other side of the clamp seat 20, away from the rope threading block 37, and two locking nuts 35 are threadedly locked; a pin 36 is radially inserted on the support rod 32 adjacent to the outer side of the locking nut 35; through the arrangement of the elastic member 33 on the support rod 32, the rope end clamp assembly 30 clamping the end of the steel belt 40 has buffer elasticity for movement; the pin 36 is used to prevent the locking nut 35 from falling off.

[0074] In this embodiment, the end of the support rod 32 is threadedly assembled with the rope threading block 37; a through groove is opened on the wedge block 39, and a locking pin is installed horizontally through the rope threading block 37 and the through groove to prevent the wedge block 39 from detaching from the rope threading block 37.

[0075] The present invention effectively simplifies the overall structure of the elevator and reduces space occupancy. It is particularly suitable for villa scenarios with limited hoistway space and limited pit depth, and greatly improves the utilization rate of the hoistway space.

[0076] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0077] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A powered top-mounted strong-drive villa elevator, comprising a car (80), characterized in that: A support frame (60) is installed in a hoistway above the car (80), and a main engine power retracting assembly (10) and a rope end clamp assembly (30) are installed on the support frame (60); the main engine power retracting assembly (10) includes a main engine shaft (12) directly driven by a driving power (13), a steel belt (40) is wound on the main engine shaft (12), the steel belt (40) led out from the main engine shaft (12) is wound downwardly through a guide wheel group (70) on the car (80), and the end of the steel belt (40) wound from the guide wheel group (70) extends upward and is clamped to the rope end clamp assembly (30).

2. A powered top-mounted strong-drive villa elevator as claimed in claim 1, characterized in that: The guide wheel group (70) is installed on the outer top surface of the car (80), and the guide wheel group (70) includes two groups of guide wheels that are spaced apart and arranged axially parallel along the winding direction of the steel belt (40). The steel belt (40) led out from the main shaft (12) is led out downward, changes direction to be horizontal above the top of the car (80) and passes around the two groups of guide wheels in sequence, and the steel belt (40) constitutes a suspension and lifting structure for the top of the car (80).

3. A powered top-mounted strong-drive villa elevator as claimed in claim 1, characterized in that: The guide wheel group (70) is installed on the bottom surface of the car (80), and the guide wheel group (70) includes two groups of guide wheels that are spaced apart and arranged axially parallel along the winding direction of the steel belt (40); and also includes a guide wheel (90) installed on the support frame (60) on the outlet side of the main shaft (12). The steel belt (40) that passes around the guide wheel (90) is led downward, changes direction to be horizontal below the bottom of the car (80) and passes around the two groups of guide wheels in sequence, and the steel belt (40) forms a suspension and lifting structure for the bottom of the car (80).

4. A powered top-mounted strong-drive villa elevator as claimed in claim 1, characterized in that: The main engine power retractable assembly (10) comprises a frame (11) with an inverted U-shaped structure, a main engine shaft (12) being rotatably mounted between two side walls of the frame (11), and the main engine shaft (12) is driven to rotate by end driving power (13); the bottom ends of the two wall surfaces of the frame (11) can also extend downward to form connecting feet (111).

5. A powered top-mounted strong-drive villa elevator as claimed in claim 1, characterized in that: The outer wall surface of the main engine shaft (12) is concave to form a plane structure (122), a pressing block (15) is installed at the plane structure (122), and the end of the steel belt (40) is pressed between the pressing block (15) and the plane structure (122).

6. A powered top-mounted strong-drive villa elevator as claimed in claim 1 or 5, characterized in that: An even number of baffles (14) are axially spaced apart and mounted on the main engine shaft (12), the baffles (14) being arranged in pairs, and a limiting space for winding a corresponding steel belt (40) is formed between the paired baffles (14).

7. A powered top-mounted strong-drive villa elevator as claimed in claim 1, characterized in that: The rope end clamp assembly (30) is arranged transversely relative to the support frame (60), and a reversing wheel assembly (50) is installed on the support frame (60) located on the rope entry side of the rope end clamp assembly (30); after the steel belt (40) is reversed to a horizontal state by the reversing wheel assembly (50), the end of the steel belt (40) is fixed to the rope end clamp assembly (30).

8. A powered top-mounted strong-drive villa elevator as claimed in claim 7, characterized in that: The reversing wheel assembly (50) is installed on a support (51), and a shock absorbing member (52) is installed between the support (51) and the support frame (60); the shock absorbing member (52) comprises steel plates arranged at intervals in the upper and lower directions, and a shock absorbing pad indented in the circumferential direction is installed between the steel plates; a long stud (53) is installed through the support (51), the upper and lower steel plates, and the support frame (60) in the upper and lower directions, and the middle part of the long stud (53) is a bare rod part, and the two ends of the long stud (53) extending upward from the support (51) and downward from the support frame (60) are set as threaded parts, and the threaded parts at the two ends of the long stud (53) are locked and tightened with nuts (54).

9. A powered top-mounted strong-drive villa elevator as claimed in claim 1, characterized in that: The rope end clamp assembly (30) is arranged vertically relative to the support frame (60); the steel belt (40) is led out from the guide wheel assembly (70) of the car (80), extends upward and is clamped by the rope end clamp assembly (30).

10. A powered top-mounted strong-drive villa elevator as claimed in claim 1, 7 or 9, characterized in that: The structure of the rope end clamp assembly (30) is as follows: it includes a support rod (32) passing through the clamp seat (20), a rope threading block (37) is installed at the end of the support rod (32), a through opening (371) is opened on the rope threading block (37), a steel belt (40) extends from the small end of the opening (371) and extends from the large end, and then reversely folded at the large end to extend from the small end, and a steel belt clamp (38) is installed at the end of the steel belt (40) extending from the small end; a wedge block (39) is pressed between the double-layer steel belts (40) located inside the rope threading block (37); a positioning block (31), a gasket (34), an elastic member (33), and a gasket (34) are sequentially mounted on the support rod (32) away from the rope threading block (37) and located on the other side of the clamp seat (20), and two locking nuts (35) are threadedly locked.

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