A steel belt traction drive device for villa elevator

Abstract

The present application discloses a steel belt traction drive device for a villa elevator, and relates to the technical field of traction drive equipment. The present application includes a mounting plate installed on the top of the elevator car, on which a drive motor and a reduction box are installed, and the reduction box has an input end and an output end, and the input end is connected to the drive motor, and also includes: a guide roller connected to the output end, and a plurality of limit grooves for accommodating the steel belt are provided on the guide roller. The present application rolls up the steel belt on the bearing plate through the guide roller, and a bearing groove is provided on the bearing plate. When the steel belt is rolled up, it is located in the bearing groove, and the steel belt contacts the protrusion, so that the protrusion is squeezed into the oil box, so that the lubricating oil inside the oil box is discharged from the oil box, contacts with the steel belt, and lubricates the steel belt, so that when the steel belt is in use, the time required for lubrication is extended, and the possibility of failure of the villa elevator is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of traction drive equipment, and particularly relates to a villa elevator steel belt traction drive device. Background Art

[0002] With the development of technology, elevators are used for transportation in many places. With the development of elevators, there are also many types of elevators. In addition to traditional cable elevators, there are also steel belt elevators and screw elevators.

[0003] Existing steel belt elevators have characteristics such as low noise and comfortable riding, but they are relatively expensive. In order to save budget, most elevators in public places do not install steel belt elevators. However, this makes steel belt elevators the first choice for most villa users when installing home elevators.

[0004] For existing villa steel belt elevators, due to the height limitation of villas, the length of the steel belts used is short. When in use, they are directly connected to the traction device of the elevator. Existing traction devices mostly include components such as traction machines, guide wheels, and speed reducers. When the steel belt is used for a long time, due to long-term winding and unwinding, after the oil layer on its upper surface dries out, the rubber layer of the steel belt is prone to cracking. When continuing to use, it is easy to cause elevator failures. However, since this elevator is for private use, it is difficult for maintenance personnel to regularly maintain the elevator steel belt and it is difficult to timely replenish lubricating oil on the steel belt, resulting in easy failures when the elevator is in use. Therefore, the present application provides a villa elevator steel belt traction drive device to improve this problem. Summary of the Invention

[0005] The purpose of the present application is to solve the problem in the above background that existing traction devices mostly include components such as traction machines, guide wheels, and speed reducers. When the steel belt is used for a long time, due to long-term winding and unwinding, after the oil layer on its upper surface dries out, the rubber layer of the steel belt is prone to cracking. When continuing to use, it is easy to cause elevator failures. However, since this elevator is for private use, it is difficult for maintenance personnel to regularly maintain the elevator steel belt and it is difficult to timely replenish lubricating oil on the steel belt. The present application provides a villa elevator steel belt traction drive device.

[0006] The present application specifically adopts the following technical solutions to achieve the above purpose:

[0007] A villa elevator steel belt traction drive device includes a mounting plate installed on the elevator car top. A drive motor and a speed reducer are installed on the mounting plate. The speed reducer has an input end and an output end. The input end is connected to the drive motor. It further includes:

[0008] A guide roller connected to the output end, and a plurality of limiting grooves for accommodating the steel belt are formed on the guide roller;

[0009] A carrier plate mounted on the guiding roller, wherein the carrier plate is provided with carrier grooves at positions spaced along the limiting grooves. When the steel strip is wound around the guiding roller, the steel strip is located in the carrier grooves;

[0010] A cavity is formed on the carrier plate, an oil box is installed in the cavity, lubricating oil is provided in the oil box, a convex block penetrating through the side wall of the oil box and the side wall of the carrier groove is installed in the oil box, a compression spring is installed in the oil box, a sponge block is installed at one end of the convex block located in the oil box, the sponge block contacts the compression spring, and the compression spring forces the convex block to approach the carrier groove.

[0011] Further, diversion grooves are formed on the side walls on both sides of the carrier groove, the diversion grooves are located on both sides of the convex block, the diversion grooves are used for accommodating lubricating oil, and sponge strips are installed in the diversion grooves.

[0012] Further, an oil filling member is further included, and the oil filling member includes;

[0013] A fuel tank communicated with the oil box, a connecting pipe is installed on the fuel tank, the fuel tank is connected to the oil box through the connecting pipe, the length of the connecting pipe is greater than or equal to the length of the steel strip, and the connecting pipe is wound around the guiding roller;

[0014] A pressure cylinder installed on the mounting plate, the pressure cylinder is provided with an air inlet for unidirectional air intake and an air outlet for unidirectional air outlet, the air inlet is communicated with the outside, the air outlet is connected to the fuel tank, a pressure rod is slidably installed on the pressure cylinder, and the pressure rod is used to increase or decrease the air pressure in the pressure cylinder.

[0015] Further, a linkage member is installed between the pressure rod and the guiding roller, and the linkage member includes:

[0016] A driving gear installed on the rotating shaft of the guiding roller;

[0017] A driven gear rotatably installed on the elevator car top, and the driven gear meshes with the driving gear;

[0018] A hinged rod eccentrically hinged to the driven gear, one end of the hinged rod is hinged to the driven gear, and the other end is hinged to the pressure rod.

[0019] Further, the diameter of the driven gear is at least three times that of the driving gear, so that the rotation speed of the driven gear is less than that of the driving gear.

[0020] Further, the width of the mounting plate is greater than the diameter of the guiding roller, a plurality of guiding grooves are formed on the mounting plate, the distance between the guiding grooves is the same as the distance between the limiting grooves, and the guiding grooves are used for accommodating the steel strip.

[0021] Further, a pressing member is installed in the guiding groove. The pressing member includes:

[0022] A connecting block slidably installed in the guiding groove;

[0023] A pressing roller rotatably installed on the connecting block, and the pressing roller is used to contact the steel strip;

[0024] A resisting spring installed in the guiding groove, one end of the resisting spring is connected to the guiding groove, and the other end is connected to the connecting block. The resisting spring forces the pressing roller to contact the steel strip.

[0025] Further, the convex block has a contact end, and the contact end is used to contact the side surface of the steel strip. The end surface of the contact end is an arc surface, so that the length of the convex block facing both sides of the bearing groove is less than the length of the part of the convex block in contact with the steel strip.

[0026] Further, a plurality of gaskets are installed in the bearing groove along the vertical direction, and the distance between the gaskets is greater than or equal to the thickness of the steel strip.

[0027] Further, threaded holes are formed on both sides of the bearing plate, and the bearing plate is connected to the guiding roller through bolts.

[0028] The beneficial effects of the present application are as follows:

[0029] 1. In the present application, the steel strip is wound on the bearing plate through the guiding roller. A bearing groove is formed on the bearing plate. When the steel strip is wound, it is located in the bearing groove. The convex block is resisted by the steel strip, so that the convex block is squeezed into the oil box, and the lubricating oil inside the oil box is discharged from the oil box, contacts the steel strip, lubricates the steel strip, and prolongs the time required for lubrication when the steel strip is used, reducing the possibility of failure of the villa elevator.

[0030] 2. In the present application, a diversion groove is formed in the bearing groove, which is convenient for guiding the lubricating oil flowing out of the oil box. Through the cooperation of the sponge strip, it is convenient for the lubricating oil to contact the steel strip more evenly, improving the utilization rate of the lubricating oil.

[0031] 3. In the present application, an oil storage tank is installed on the mounting plate, and the lubricating oil is squeezed into the oil box through the pressurizing cylinder, which is convenient for replenishing the lubricating oil in the oil box and reducing the frequency of adding lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic three-dimensional structure diagram of the present application;

[0033] Figure 2 is the present application Figure 1 exploded view of part of the structure;

[0034] Figure 3 is another schematic diagram of the three-dimensional structure of the present application;

[0035] Figure 4 is the present application Figure 2 an exploded view of part of the structure;

[0036] Figure 5 is the present application Figure 2 a three-dimensional half-sectional view;

[0037] Figure 6 is another exploded view of part of the structure of the present application;

[0038] Figure 7 is the present application Figure 1 an enlarged view of part A in the present application;

[0039] Reference numerals: 1, guide roller; 2, limit groove; 3, carrier plate; 4, carrier groove; 5, oil box; 6, convex block; 7, compression spring; 8, sponge block; 9, diversion groove; 10, sponge strip; 11, oil filling member; 1101, oil storage tank; 1102, connecting pipe; 1103, pressurizing cylinder; 1104, pressing rod; 12, linkage member; 1201, driving gear; 1202, driven gear; 1203, articulated rod; 13, mounting plate; 14, guide groove; 15, pressing member; 1501, connecting block; 1502, pressing roller; 1503, abutting spring; 16, gasket. Detailed implementation manners

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0041] As Figure 1 , Figure 3 , Figure 4 and Figure 5 shown, a steel belt traction drive device for a villa elevator includes a mounting plate 13 installed on the elevator car top. A drive motor and a speed reducer are installed on the mounting plate 13. The speed reducer has an input end and an output end. The input end is connected to the drive motor. The mounting plate 13 is installed on the elevator car top, and its upper surface is a horizontal plane. Both the drive motor and the speed reducer are existing motor drive components. The output shaft of the drive motor is connected to the speed reducer. The speed reducer is used to reduce the speed of the drive motor and increase the torque of the drive motor. It further includes:

[0042] A guide roller 1 connected to the output end, on which a plurality of limit grooves 2 for accommodating the steel belt are formed. The guide roller 1 is rotatably installed on the mounting plate 13. During use, the width of the limit groove 2 formed along the roller body is greater than or equal to the width of the steel belt, and it is used to accommodate the end of the steel belt during use;

[0043] The bearing plate 3 is installed on the guiding roller 1. At positions spaced along the limiting grooves 2 on the bearing plate 3, bearing grooves 4 are provided. When the steel belt is wound around the guiding roller 1, the steel belt is located within the bearing grooves 4. On one side of the bearing plate 3 close to the limiting grooves 2, connecting columns are installed, which are used to penetrate the steel belt to fix the end of the steel belt, so as to connect it with the guiding roller 1. The bearing grooves 4 are located above the limiting grooves 2, and the number of the bearing grooves 4 is the same as that of the limiting grooves 2. The width of the bearing grooves 4 is equal to the width of the steel belt. During use, when the guiding roller 1 rotates, since the end of the steel belt is connected to the connecting column, the steel belt will be wound within the bearing grooves 4 on the bearing plate 3. The bearing grooves 4 accommodate and limit the steel belt, making the steel belt more stable during operation, and reducing the contact between the surface of the steel belt and other parts of the guiding roller 1, thus reducing the wear on the surface of the steel belt;

[0044] A cavity is constructed on the bearing plate 3, and an oil box 5 is installed in the cavity. Lubricating oil is provided in the oil box 5. A convex block 6 is installed in the oil box 5, which penetrates the side wall of the oil box 5 and the side wall of the bearing groove 4. A compression spring 7 is installed in the oil box 5. A sponge block 8 is installed at one end of the convex block 6 located within the oil box 5. The sponge block 8 contacts the compression spring 7, and the compression spring 7 forces the convex block 6 to approach the bearing groove 4. Lubricating oil is stored in the oil box 5, and the oil box 5 is located within the cavity of the bearing plate 3. During use, the outer part of the oil box 5 is attached to the inner wall of the bearing plate 3. During use, it is convenient for the oil box 5 to be closer to the bearing groove 4. Through holes for the lubricating oil to pass through are provided on both the inner wall of the oil box 5 and the inner wall of the bearing groove 4. A support plate is installed in the oil box 5, and the compression spring 7 is installed on the support plate. One end of the convex block 6 is located within the oil box 5, and the other end is located within the bearing groove 4. And the length of the end of the convex block 6 located within the bearing groove 4 is longer than the groove wall of the bearing groove 4. When the steel belt is wound up, it will squeeze the convex block 6, causing the compression spring 7 to be compressed, and making the convex block 6 move into the oil box 5, so as to release the sealing of the through hole by the convex block 6, allowing the lubricating oil inside the oil box 5 to leak out, enabling the lubricating oil to enter the bearing groove 4 and contact the steel belt, thus completing the oiling of the steel belt. By installing a sponge block 8 at one end of the convex block 6 located within the oil box 5, the speed of the lubricating oil moving outwards within the oil box 5 is slowed down, reducing the possibility of excessive overflow of the lubricating oil and saving the lubricating oil;

[0045] During use, since this device is applicable to villa elevators, the elevator is not often used during the day on weekdays. As a result, the number of times the elevator winds up the steel belt is less. And for the convenience of use, most elevators stop at the first floor when not in use, that is, the steel belt is not wound around the guiding roller 1, reducing the waste of lubricating oil when not in use;

[0046] Compared with the prior art, during use, the lubricating oil in the oil box 5 continuously oils the steel belt for a long time, reducing the possibility of damage to the outer surface of the steel belt due to lack of lubricating oil during use, and increasing the service life of the steel belt.

[0047] As Figures 3 - 5 shown, in some embodiments, diversion channels 9 are formed on the side walls on both sides of the bearing groove 4. The diversion channels 9 are located on both sides of the bump 6 and are used to accommodate lubricating oil. A sponge strip 10 is installed in the diversion channels 9. Two openings are formed in the bearing groove 4 along the tangential direction of the rotation direction of the guide roller 1 for accommodating the steel strip. The diversion channels 9 are formed between the two openings, on both sides of the bump 6 and the through hole, and a sponge strip 10 is installed inside. Through the absorption of the sponge strip 10, the lubricating oil discharged from the oil box 5 can be adsorbed and made to flow along the direction where the sponge strip 10 is installed. By installing the sponge strip 10 in the diversion channels 9, the contact area with the steel strip is increased, so that the lubricating oil can better contact the steel strip, improving the utilization rate of the lubricating oil.

[0048] As Figure 2 and Figure 7 shown, in some embodiments, it further includes an oil filling member 11, and the oil filling member 11 includes;

[0049] An oil storage tank 1101 communicated with the oil box 5. A connecting pipe 1102 is installed on the oil storage tank 1101. The oil storage tank 1101 is connected to the oil box 5 through the connecting pipe 1102. The length of the connecting pipe 1102 is greater than or equal to the length of the steel strip. The connecting pipe 1102 is wound around the guide roller 1. The oil storage tank 1101 is used to hold more lubricating oil, and an inlet and an outlet are formed thereon. The outlet is communicated with the oil box 5 through the connecting pipe 1102. Since this elevator is a villa elevator, most of them are only two floors high, and the maximum length of the connecting pipe 1102 does not exceed seven meters, which is convenient for winding around the guide roller 1. The winding direction thereof is the same as the winding direction of the steel strip. When the guide roller 1 rotates, it winds or unwinds together with the steel strip, improving the feasibility of the device;

[0050] The pressure cylinder 1103 is installed on the mounting plate 13. The pressure cylinder 1103 is provided with an air inlet for one-way air intake and an air outlet for one-way air outlet. The air inlet is communicated with the outside, and the air outlet is connected to the oil storage tank 1101. A pressure rod 1104 is slidably installed on the pressure cylinder 1103. The pressure rod 1104 is used to increase or decrease the air pressure in the pressure cylinder 1103. The pressure cylinder 1103 is provided with an opening in the vertical direction. The pressure rod 1104 is slidably installed on the pressure cylinder 1103 in the vertical direction. Check valves are installed on both the air inlet and the air outlet. A baffle is installed at the end of the pressure rod 1104 close to the pressure cylinder 1103. The baffle is used to seal the opening, so that a piston is formed between the pressure rod 1104 and the pressure cylinder 1103. The pressure cylinder 1103 is communicated with the oil storage tank 1101 through a pipeline to reduce the oil consumption in the oil storage tank 1101. By pressing the pressure rod 1104 to make it close to the pressure cylinder 1103, the air pressure inside the pressure cylinder 1103 is increased, and the lubricating oil in the oil storage tank 1101 is pressed towards the oil box 5. Then, by resetting the pressure rod 1104, it is convenient for the next pressurization. Moreover, the pressure cylinder 1103 and the oil storage tank 1101 are respectively located at both ends of the guide roller 1 to slow down the pressurization speed and facilitate the lubricating oil in the oil box 5 to sufficiently lubricate the steel belt.

[0051] As Figure 2 and Figure 7 shown, in some embodiments, a linkage member 12 is installed between the pressure rod 1104 and the guide roller 1. The linkage member 12 includes:

[0052] A driving gear 1201 installed on the rotating shaft of the guide roller 1;

[0053] A driven gear 1202 rotatably installed on the elevator car top. The driven gear 1202 meshes with the driving gear 1201. The driving gear 1201 and the driven gear 1202 mesh with each other to drive the driven gear 1202 to rotate together through the rotation of the guide roller 1;

[0054] The articulated rod 1203 is eccentrically articulated to the driven gear 1202. One end of the articulated rod 1203 is articulated to the driven gear 1202, and the other end is articulated to the pressure rod 1104. The pressure cylinder 1103 is located below the driven gear 1202 in the vertical direction. An articulated block is eccentrically installed on the driven gear 1202. One end of the articulated rod 1203 is articulated to the articulated block, and the other end is articulated to the pressure rod 1104. The sliding direction of the pressure rod 1104 is limited through the opening of the pressure cylinder 1103. When the guide roller 1 rotates, it drives the driving gear 1201 to rotate, thereby driving the driven gear 1202 to rotate, causing the driven gear 1202 to drive the articulated block to perform a circular motion around its axis, changing the position of the articulated block in the vertical direction. Also, due to the limitation of the opening of the pressure cylinder 1103, the position of the pressure rod 1104 in the vertical direction changes, performing a reciprocating motion in the vertical direction, thereby causing the pressure rod 1104 to change the air pressure in the pressure cylinder 1103, pressing the lubricating oil in the oil storage tank 1101 towards the oil box 5. Driven by the guide roller 1, there is no need to drive the pressure rod 1104 through additional power, saving the power source and the space for installing the power source, and reducing the load on the top of the villa elevator car.

[0055] As Figure 7 shown, in some embodiments, the diameter of the driven gear 1202 is at least three times that of the driving gear 1201, so that the rotational speed of the driven gear 1202 is less than that of the driving gear 1201. Driving the large gear by the small gear is more labor-saving and convenient for driving the driven gear 1202 to rotate. And when the driving gear 1201 rotates multiple circles, the driven gear 1202 rotates one circle, which is convenient for slowing down the movement speed of the pressure rod 1104, reducing the possibility that the lubricating oil in the oil storage tank 1101 is quickly pressed into the oil box 5, slowing down the oil injection into the oil box 5, and enabling the oil box 5 to be refilled only after the elevator has run multiple times, which is convenient for reducing oil consumption.

[0056] As Figure 6 shown, in some embodiments, the width of the mounting plate 13 is greater than the diameter of the guide roller 1. A plurality of guide grooves 14 are formed on the mounting plate 13. The spacing between the guide grooves 14 is the same as and the number is the same as that between the limiting grooves 2. The guide grooves 14 are used to accommodate the steel belts. The mounting plate 13 is provided with guide grooves 14 in the vertical direction. Different steel belts are separated through the guide grooves 14, reducing the possibility that the steel belts rub against each other due to looseness after long-term use during operation, resulting in unstable elevator operation. The steel belts are protected through the guide grooves 14, increasing the service life of the steel belts.

[0057] As Figure 6 shown, in some embodiments, a pressing member 15 is installed in the guide groove 14. The pressing member 15 includes:

[0058] The connecting block 1501 is slidably installed in the guiding groove 14. A sliding groove is formed in the guiding groove 14, and the connecting block 1501 is slidably installed in the sliding groove;

[0059] The pressing roller 1502 is rotatably installed on the connecting block 1501, and the pressing roller 1502 is used to contact the steel strip;

[0060] The abutting spring 1503 is installed in the guiding groove 14. One end of the abutting spring 1503 is connected to the guiding groove 14, and the other end is connected to the connecting block 1501. The abutting spring 1503 forces the pressing roller 1502 to abut against the steel strip. The length of the abutting spring 1503 is at least half of the length of the guiding groove 14. During use, the abutting spring 1503 forces the pressing roller 1502 to abut against the steel strip, so that the steel strip is in a taut state during use, reducing the possibility of the steel strip loosening, facilitating the guiding of the steel strip, reducing the possibility of slipping between the steel strip and the bearing groove 4, and improving the stability of the steel strip during use.

[0061] As Figure 5 shown, in some embodiments, the convex block 6 has a contact end, and the contact end is used to contact the side surface of the steel strip. The end surface of the contact end is an arc surface, so that the length of the convex block 6 towards both sides of the bearing groove 4 is less than the length of the part of the convex block 6 in contact with the steel strip. The contact end of the convex block 6 is a hemisphere, so that the length of the middle part of the contact end is the longest, and the length of the peripheral side is shorter than that of the middle part, which is convenient for pressing the convex block 6 when the steel strip contacts the convex block 6 and making it move into the oil box 5, improving the sensitivity of the convex block 6 during use.

[0062] As Figure 4 and Figure 5 shown, in some embodiments, a plurality of gaskets 16 are installed in the bearing groove 4 along the vertical direction. The distance between the gaskets 16 is greater than or equal to the thickness of the steel strip. The gaskets 16 are made of rubber, which is convenient for accommodating the steel strip. In the initial state, the bearing groove 4 is in the vertical direction, and the gap between the gaskets 16 is used to accommodate the steel strip. During use, the steel strip is stratified by the gaskets 16, so that there is a gap between them, enabling the lubricating oil to better contact the steel strip and increasing the utilization rate of the lubricating oil.

[0063] As Figure 1 and Figure 3 shown, in some embodiments, threaded holes are formed on both sides of the bearing plate 3. The bearing plate 3 is connected to the guiding roller 1 through bolts. During installation, the steel strip is first connected to the connecting column on the bearing plate 3, and then the bearing plate 3 is connected to the guiding roller 1, which is convenient for connection and makes the bearing plate 3 detachable, facilitating the replacement and inspection of the device when asking the maintenance personnel to come to repair.

[0064] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel belt traction drive device for a villa elevator, comprising a mounting plate (13) mounted on the top of an elevator car, a drive motor and a reduction box mounted on the mounting plate (13), the reduction box having an input end and an output end, the input end being connected to the drive motor, characterized in that: Also includes: A guide roller (1) connected to the output end, the guide roller (1) being provided with a plurality of limiting grooves (2) for accommodating the steel strip; A bearing plate (3) mounted on the guide roller (1), wherein a bearing groove (4) is provided on the bearing plate (3) at a position spaced between the limiting grooves (2), and when the steel belt is wound on the guide roller (1), the steel belt is located in the bearing groove (4); The bearing plate (3) is provided with a cavity, an oil box (5) is installed in the cavity, lubricating oil is arranged in the oil box (5), a convex block (6) penetrating the side wall of the oil box (5) and the side wall of the bearing groove (4) is installed in the oil box (5), a compression spring (7) is installed in the oil box (5), a sponge block (8) is installed on one end of the convex block (6) located in the oil box (5), the sponge block (8) is in contact with the compression spring (7), and the compression spring (7) forces the convex block (6) to approach the bearing groove (4).

2. A steel belt traction drive device for a villa elevator according to claim 1, characterized in that: Guide grooves (9) are provided on the side walls on both sides of the bearing groove (4). The guide grooves (9) are located on both sides of the protrusion (6). The guide grooves (9) are used to contain lubricating oil. Sponge strips (10) are installed in the guide grooves (9).

3. A steel belt traction drive device for a villa elevator according to claim 1, characterized in that: It also includes a refueling part (11), the refueling part (11) comprising: an oil storage tank (1101) connected to the oil box (5), a connecting pipe (1102) being installed on the oil storage tank (1101), the oil storage tank (1101) being connected to the oil box (5) via the connecting pipe (1102), the length of the connecting pipe (1102) being greater than or equal to the length of the steel belt, and the connecting pipe (1102) being wound around the guide roller (1); A pressurizing cylinder (1103) is mounted on the mounting plate (13), and the pressurizing cylinder (1103) has an air inlet for one-way air intake and an air outlet for one-way air exhaust, the air inlet is connected to the outside, and the air outlet is connected to the oil storage tank (1101), and a pressure rod (1104) is slidably mounted on the pressurizing cylinder (1103), and the pressure rod (1104) is used to increase or decrease the air pressure in the pressurizing cylinder (1103).

4. A steel belt traction drive device for a villa elevator according to claim 3, characterized in that: A linkage (12) is installed between the pressure rod (1104) and the guide roller (1), and the linkage (12) comprises: A driving gear (1201) mounted on the rotating shaft of the guide roller (1); Rotating a driven gear (1202) mounted on the elevator car top, wherein the driven gear (1202) meshes with the driving gear (1201); An articulated rod (1203) is eccentrically articulated on the driven gear (1202), one end of the articulated rod (1203) being articulated to the driven gear (1202), and the other end of the articulated rod (1203) being articulated to the pressure rod (1104).

5. A steel belt traction drive device for a villa elevator according to claim 4, characterized in that: The diameter of the driven gear (1202) is at least three times that of the driving gear (1201), so that the rotation speed of the driven gear (1202) is lower than that of the driving gear (1201).

6. A steel belt traction drive device for a villa elevator according to claim 1, characterized in that: The width of the mounting plate (13) is greater than the diameter of the guide roller (1), and a plurality of guide grooves (14) are provided on the mounting plate (13). The spacing between the guide grooves (14) is consistent with the spacing between the limit grooves (2), and the guide grooves (14) are used to accommodate the steel belt.

7. A steel belt traction drive device for a villa elevator according to claim 6, characterized in that: A pressing member (15) is installed in the guide groove (14), and the pressing member (15) comprises: A connecting block (1501) slidably mounted in the guide groove (14); Rotating a pressure roller (1502) mounted on the connection block (1501), wherein the pressure roller (1502) is used to contact the steel belt; A resistance spring (1503) is installed in the guide groove (14), one end of the resistance spring (1503) is connected to the guide groove (14), and the other end is connected to the connecting block (1501), and the resistance spring (1503) forces the pressure roller (1502) to resist the steel belt.

8. The steel belt traction drive device for villa elevator according to claim 1, characterized in that: The protrusion (6) has a contact end, the contact end is used to contact the side of the steel strip, and the end face of the contact end is an arc surface, so that the length of the protrusion (6) toward the two sides of the bearing groove (4) is smaller than the length of the part where the protrusion (6) contacts the steel strip.

9. A steel belt traction drive device for a villa elevator according to claim 1, characterized in that: A plurality of gaskets (16) are installed in the bearing groove (4) along the vertical direction, and the distance between the gaskets (16) is greater than or equal to the thickness of the steel belt.

10. A steel belt traction drive device for a villa elevator according to claim 1, characterized in that: Threaded holes are formed on both sides of the bearing plate (3), and the bearing plate (3) is connected to the guide roller (1) via bolts.

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