Anti-sinking elevator system

Abstract

The utility model relates to the technical field of elevators, in particular to an anti-sinking elevator system. Comprising a hoistway; the lift car is arranged in the hoistway; the traction module is used for driving the lift car to ascend / descend in the hoistway; the anti-settling module comprises an anti-settling rope and an anti-settling part, and the anti-settling rope is fixedly connected with the lift car and used for applying upward pulling force to the lift car; the anti-sinking part is connected with the anti-sinking rope, and the anti-sinking part drives the anti-sinking rope to keep a pulling state to the car in the ascending / descending action process of the car. The utility model provides the anti-sinking elevator system which does not influence the traction force and is noiseless.

Description

Technical Field

[0001] This application relates to the technical field of elevators, and particularly to an anti-sinking lift elevator system. Background Art

[0002] Goods elevators (freight elevators) are widely used in factories, warehouses, shopping malls, hotels, airports, stations and other places. Due to the large load capacity of goods elevators and the high floors, after the loading and unloading device (forklift or hydraulic truck) often loads goods into the car, the traction steel wire rope elongates, causing the car to sink. Furthermore, the height difference between the car and the landing door increases, and the loading and unloading device cannot leave the car after unloading the goods. Therefore, goods elevators usually need to be provided with an anti-settlement structure.

[0003] In the related art, the anti-settlement structures designed for freight elevators mainly have the following several methods: 1. Increasing the number of elevator guide rails: This solution is the most conventional one on the market, changing a 2-rail goods elevator to a 4-rail or 6-rail goods elevator. However, this solution can only solve the settlement problem caused by the car tilting during loading and cannot solve the settlement problem caused by the elongation of the steel wire rope. 2. Changing the material of the traction steel wire rope: This solution is to change the steel wire rope from a hemp core to a steel core, increasing the nominal cross-sectional area of the steel wire rope, thereby reducing the elongation of the steel wire rope. However, due to the increased weight of the steel wire rope in this solution, it will affect the traction force calculation of the entire elevator, and changing from a hemp core to a steel core only increases the nominal cross-sectional area by about 1.29 times, and the effect is not obvious. 3. Increasing the number of traction steel wire ropes: This solution is to increase the number of traction steel wire ropes, reducing the weight borne by each traction steel wire rope, thereby reducing the elongation of the traction steel wire rope. However, the increased weight of the traction steel wire ropes in this solution will affect the traction force calculation of the entire elevator, and there are limitations to increasing the number of traction steel wire ropes because the thicknesses of the traction wheels and rope wheels are determined by the molds. Therefore, the effect of this solution is limited. 4. Adding a bolt on the car: This solution is to add a bolt driven by a motor on the car. When the elevator reaches the leveling position, the bolt at the car end extends and contacts the bolt fixed on the hoistway, thereby preventing the elevator from sinking during loading. However, when the bolts contact due to the sinking of the elevator in this solution, there is a large frictional force between the bolts at this time, and a large force from the motor is required to retract the bolts. Therefore, there are problems of noise and easy failure.

[0004] It can be seen that the anti-settlement structures in the related art all have corresponding problems. Utility Model Content

[0005] Based on this, it is necessary to provide an anti-sinking lift elevator system that does not affect the traction force and is noise-free.

[0006] An anti-sinking lift elevator system includes:

[0007] A hoistway;

[0008] A car, arranged in the hoistway;

[0009] A traction module for driving the car to move up / down in the hoistway;

[0010] A anti-settlement module, including an anti-settlement rope and an anti-settlement component. The anti-settlement rope is fixedly connected to the car and is used to apply an upward pulling force to the car; the anti-settlement component is connected to the anti-settlement rope, and during the up / down movement of the car, the anti-settlement component drives the anti-settlement rope to maintain a pulling state on the car.

[0011] In one embodiment, during the up / down movement of the car, the anti-settlement component drives the anti-settlement rope to maintain a tensioned state to maintain a pulling state on the car.

[0012] In one embodiment, the anti-settlement component includes a first rope pulley, a second rope pulley and a rope gripper. Along the extending direction of the hoistway, the first rope pulley is arranged above the car, and the second rope pulley is arranged below the car; both ends of the anti-settlement rope are respectively sleeved on the first rope pulley and the second rope pulley and are in a tensioned state; the rope gripper is used to grip the anti-settlement rope to limit the relative movement of the anti-settlement rope with respect to the rope gripper.

[0013] In one embodiment, the anti-settlement component further includes a bracket. The car is arranged on the bracket and is fixedly connected to the bracket; the end of the bracket extends out of the side wall of the car, and the anti-settlement rope is connected to the part of the bracket that extends out of the side wall of the car.

[0014] In one embodiment, the anti-settlement component further includes a first fixed beam and a second fixed beam. Along the extending direction of the hoistway, the first fixed beam is arranged above the car, and the first rope pulley and the rope gripper are arranged on the first fixed beam; the second fixed beam is arranged below the car, and the second rope pulley is arranged on the second fixed beam.

[0015] In one embodiment, along the extending direction of the hoistway, the hoistway has an upper part and a bottom part. The upper part is provided with a load-bearing beam, and the first fixed beam is arranged on the load-bearing beam; the second fixed beam is arranged at the bottom.

[0016] In one embodiment, the number of the anti-settlement modules is set to be an even number. The even-numbered anti-settlement modules are respectively arranged on the opposite sides of the car and are symmetrically arranged with respect to the axis of the car.

[0017] In one embodiment, the traction module includes a traction machine, a traction rope, a car wheel, a car return pulley, a counterweight return pulley, a counterweight wheel, and a counterweight; the car wheel is arranged on the car, and the counterweight wheel is arranged on the counterweight; the car return pulley and the counterweight return pulley are arranged on the bearing beam; one end of the traction rope is fixedly connected in the hoistway, and the other end sequentially bypasses the car wheel, the car return pulley, the traction machine, the counterweight wheel, and the counterweight return pulley and then is fixedly connected in the hoistway.

[0018] In one embodiment, along the extending direction of the hoistway, the car wheel is arranged on the top of the car, and the car return pulley is arranged at a position above the car wheel; the counterweight wheel is arranged on the top of the counterweight, and the counterweight return pulley is arranged at a position above the counterweight wheel.

[0019] In one embodiment, the car wheel includes a first car wheel and a second car wheel, and the first car wheel and the second car wheel are respectively arranged at positions close to the two side edges of the top of the car; the counterweight wheel includes a first counterweight wheel and a second counterweight wheel, and the first counterweight wheel and the second counterweight wheel are respectively arranged at positions close to the two side edges of the top of the counterweight; the traction rope sequentially bypasses the first car wheel, the car return pulley, the second car wheel, the traction machine, the first counterweight wheel, the counterweight return pulley, and the second counterweight wheel.

[0020] Compared with the prior art, without affecting the traction module, the anti-sinking elevator system is provided with an anti-sinking rope, which is separated from the traction steel wire rope and does not affect the traction force of the whole elevator. By providing an additional pulling force through the anti-sinking rope and the anti-sinking component, the force on the traction steel wire rope can be reduced by half, and the elongation of the traction steel wire rope can be greatly reduced, and the anti-settlement effect is remarkable. Compared with the pin method, no large friction will be generated during the operation process, effectively avoiding the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0022] Figure 1 It is a front view structural schematic diagram of the anti-sinking elevator system provided by the present application.

[0023] Figure 2 It is a side view structural schematic diagram of the anti-sinking elevator system provided by the present application.

[0024] Figure 3 For Figure 1Partial schematic of the anti-settlement module in Figure 1 。

[0025] Figure 4 is Figure 2 Partial schematic of the anti-settlement module in Figure 1 。

[0026] Figure 5 is Figure 1 Partial schematic of the anti-settlement module in Figure 2 。

[0027] Figure 6 is Figure 2 Partial schematic of the anti-settlement module in Figure 2 。

[0028] Figure 7 is Figure 1 Partial schematic of the anti-settlement module in Figure 3 。

[0029] Figure 8 is Figure 2 Partial schematic of the anti-settlement module in Figure 3 。

[0030] Reference numerals: 1, hoistway; 11, upper part; 12, bottom; 2, car; 3, traction module; 31, traction machine; 32, traction rope; 33, car wheel; 331, first car wheel; 332, second car wheel; 34, car deflecting sheave; 35, counterweight deflecting sheave; 36, counterweight wheel; 361, first counterweight wheel; 362, second counterweight wheel; 37, counterweight; 4, anti-settlement module; 41, anti-settlement rope; 42, anti-settlement component; 421, first sheave; 422, second sheave; 423, rope gripper; 424, bracket; 425, first fixed beam; 426, second fixed beam; 427, load-bearing beam; 5, controller. Detailed implementation manners

[0031] To make the above objects, features, and advantages of the present application more apparent and understandable, the following describes the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0032] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are only for illustrative purposes and do not represent the only implementation.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, the first feature may be in direct contact with the second feature "on" or "under" the second feature, or the first feature and the second feature may be in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific implementations and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0036] Please refer to Figures 1 to 8 , this application provides an anti-sinking lift system, which includes a hoistway 1, a car 2, a traction module 3 and an anti-settlement module 4. Among them, the car 2 is arranged in the hoistway 1. The traction module 3 is used to drive the car 2 to move up / down in the hoistway 1. The anti-settlement module 4 includes an anti-sinking rope 41 and an anti-sinking component 42. The anti-sinking rope 41 is fixedly connected to the car 2 and is used to apply an upward pulling force to the car 2. The anti-sinking component 42 is connected to the anti-sinking rope 41. During the up / down movement of the car 2, the anti-sinking component 42 drives the anti-sinking rope 41 to maintain a pulling state on the car 2.

[0037] It can be understood that the lifting motion of the car 2 is still driven by the traction module 3, and the anti-settlement module 4 is an additional structure to provide a pulling force to the car 2. During the ascending / descending process of the car 2, the anti-settlement component 42 will synchronously respond to the ascending / descending motion of the car 2 and adjust the anti-settlement rope 41, so that the anti-settlement rope 41 always maintains a pulling state on the car 2. When the car 2 stops, the anti-settlement module 4 has already completed the anti-settlement treatment of the car 2 synchronously, and there is no need to reserve time for the action of the anti-settlement module 4, improving the operation efficiency.

[0038] Secondly, since the anti-settlement rope 41 is an additional installation and the traction steel wire rope in the traction module 3 is not adjusted, it will not affect the traction force calculation of the whole elevator. And by providing an additional pulling force through the anti-settlement rope 41 and the anti-settlement component 42, the force on the traction steel wire rope can be reduced by half, greatly reducing the elongation of the traction steel wire rope, and the anti-settlement effect is remarkable.

[0039] Furthermore, during the ascending / descending process of the car 2, the anti-settlement component 42 drives the anti-settlement rope 41 to maintain a tensioned state to keep a pulling state on the car 2.

[0040] It can be understood that whether the car 2 is stationary or moving, the anti-settlement component 42 always drives the anti-settlement rope 41 to maintain a tensioned state. That is, whether the car 2 is stationary or moving, the anti-settlement rope 41 always exerts a pulling force on the car 2, thereby providing assistance to the traction steel wire rope, reducing the force on the traction steel wire rope, and avoiding the elongation of the traction steel wire rope after long-term use.

[0041] Specifically, the anti-settlement component 42 includes a first rope pulley 421, a second rope pulley 422 and a rope gripper 423. The rope gripper 423 is used to clamp the anti-settlement rope 41 to limit the relative movement of the anti-settlement rope 41 with respect to the rope gripper 423. Along the height direction of the hoistway 1, the first rope pulley 421 is located above the car 2, and the second rope pulley 422 is located below the car 2. Both ends of the anti-settlement rope 41 are sleeved on the first rope pulley 421 and the second rope pulley 422 respectively and are in a tensioned state.

[0042] Understandably, the anti-sinking rope 41 is sleeved on the first rope pulley 421 and the second rope pulley 422. The anti-sinking rope 41 can move relative to the first rope pulley 421 and the second rope pulley 422 and is in a tensioned state, similar to the form of a crawler belt. The car 2 is fixedly connected to the anti-sinking rope 41. Therefore, when the car 2 moves, the anti-sinking rope 41 will move synchronously under the drive of the car 2, and there is no need to separately set a power source to drive the anti-sinking rope 41 to move, reducing the energy consumption and manufacturing cost of the elevator. When the car 2 runs in place, after the anti-sinking rope 41 is clamped by the rope gripper 423, the anti-sinking rope 41 can no longer move, and thus the car 2 will no longer sink when loading goods. The rope gripper 423 has a good clamping effect on the anti-sinking rope 41, and it is not easy to slip or shift, etc., and the anti-settling effect is good. The clamping action is fast and can be directly controlled and executed by the controller 5 of the elevator, with simple and fast operation, improving the operation efficiency of the elevator.

[0043] Secondly, the clamping and releasing of the anti-sinking rope 41 by the rope gripper 423 is perpendicular to the movement direction of the anti-sinking rope 41, that is, perpendicular to the movement direction of the car 2. Therefore, it is not in the same direction as the settlement of the elevator and will not affect the normal operation of the elevator.

[0044] Exemplarily, the anti-sinking rope 41 can be made of steel wire rope, with a firm and durable structure. Of course, in other embodiments, it can also be selected according to actual needs without specific limitation. The type and model of the rope gripper 423 can also be selected according to actual needs.

[0045] Exemplarily, the controller 5 can be a single-chip microcomputer, a PLC controller 5, etc. The specific principle is the prior art and will not be elaborated.

[0046] Furthermore, the anti-sinking component 42 further includes a bracket 424. The car 2 is arranged on the bracket 424 and is fixedly connected to the bracket 424. The end of the bracket 424 extends out of the side wall of the car 2, and the anti-sinking rope 41 is connected to the part of the bracket 424 that extends out of the side wall of the car 2.

[0047] Preferably, the number of brackets 424 is preferably set to an even number, specifically, it can be values such as 2, 4, 6, 8, etc. Of course, it can also be valued according to actual needs.

[0048] In this way, only need to separately process or purchase the bracket 424 and then install it on the car 2, without changing the structure of the car 2, reducing the manufacturing cost. And the existence of the bracket 424 makes the pulling force of the anti-sinking rope 41 on the car 2 more uniform, and it is not easy to tilt.

[0049] Furthermore, the number of the anti-settlement modules 4 is set to an even number. That is to say, the number of the anti-settlement modules 4 is set to an even number, which can be specifically values such as 2, 4, 6, 8, etc. Of course, the value can also be taken according to actual needs. The even-numbered anti-settlement modules 4 are respectively arranged on the opposite sides of the car 2 and are symmetrically arranged with respect to the axis of the car 2. Ensure that the car 2 is always subjected to pulling forces in symmetric directions, avoid situations such as shaking and tilting of the car 2 during operation, and improve the user's elevator riding experience.

[0050] In one embodiment, the anti-settlement component 42 further includes a first fixed beam 425 and a second fixed beam 426. Specifically, along the height direction of the hoistway 1, the first fixed beam 425 is arranged above the car 2, and the first rope pulley 421 and the rope gripper 423 are arranged on the first fixed beam 425. The second fixed beam 426 is arranged below the car 2, and the second rope pulley 422 is arranged on the second fixed beam 426.

[0051] In this way, the first fixed beam 425 and the second fixed beam 426 stably support the first rope pulley 421, the rope gripper 423, and the second rope pulley 422, avoiding failures that affect the operation of the car 2.

[0052] Exemplarily, the first fixed beam 425 is preferably of an I-shaped structure and has stronger load-bearing capacity.

[0053] Furthermore, along the height direction of the hoistway 1, the hoistway 1 has an upper part 11 and a bottom part 12. The second fixed beam 426 is arranged at the bottom 12 of the hoistway mentioned. A load-bearing beam 427 is arranged in the upper part 11 of the hoistway 1, and the above-mentioned first fixed beam 425 is arranged on the load-bearing beam 427.

[0054] Among them, the load-bearing beam 427 is arranged below the first fixed beam 425, and the top surface of the load-bearing beam 427 abuts against the bottom surface of the first fixed beam 425 to provide support for the first fixed beam 425. Both ends of the load-bearing beam 427 are fixedly connected to the inner wall of the hoistway 1 to ensure that the load-bearing beam 427 has good load-bearing capacity.

[0055] Exemplarily, the load-bearing beam 427 is of an I-shaped structure, and the number is preferably set to two. Of course, in other embodiments, the shape and number of the load-bearing beam 427 can be selected according to actual needs.

[0056] Specifically, the traction module 3 includes a traction machine 31, a traction rope 32, a car wheel 33, a car back rope pulley 34, a counterweight back rope pulley 35, a counterweight wheel 36, and a counterweight 37. Among them, the car wheel 33 is arranged on the car 2, and the counterweight wheel 36 is arranged on the counterweight 37. The car back rope pulley 34 and the counterweight back rope pulley 35 are arranged on the load-bearing beam 427. One end of the traction rope 32 is fixedly connected in the hoistway 1, and the other end sequentially bypasses the car wheel 33, the car back rope pulley 34, the traction machine 31, the counterweight wheel 36, and the counterweight back rope pulley 35 and then is fixedly connected in the hoistway 1.

[0057] When the traction machine 31 starts, it can drive the traction rope 32 to rotate, thereby breaking the balance between the counterweight 37 and the car 2, and the car 2 moves. The traction machine 31 is a prior art and will not be elaborated. The counterweight 37 is a conventional elevator counterweight, which can adopt counterweight blocks, counterweight frames, etc. Specifically, it is also a prior art and will not be elaborated. The traction rope 32 is preferably made of steel wire rope.

[0058] Further, in the height direction of the car 2, the car wheel 33 is arranged at the top of the car 2, and the car reverse rope wheel 34 is arranged above the car wheel 33. The counterweight wheel 36 is arranged at the top of the counterweight 37, and the counterweight reverse rope wheel 35 is arranged above the counterweight wheel 36.

[0059] In this way, the traction effect on the car 2 is at the top, and the pulling effect of the anti-sinking rope 41 is on the side (the bracket 424 extends out of the side of the car 2, and the anti-sinking rope 41 is connected to the position where the bracket extends out of the car), and the two do not interfere with each other.

[0060] Further, the car wheel 33 includes a first car wheel 331 and a second car wheel 332. The first car wheel 331 and the second car wheel 332 are respectively arranged at the top of the car 2 near the two side edges. The counterweight wheel 36 includes a first counterweight wheel 361 and a second counterweight wheel 362. The first counterweight wheel 361 and the second counterweight wheel 362 are respectively arranged at the top of the counterweight 37 near the two side edges.

[0061] In this way, there is a certain distance between the first car wheel 331 and the second car wheel 332. When the car 2 is tractioned, there are two force application points, and the traction of the car 2 is more stable and it is not easy to shake.

[0062] The positions of the first car wheel 331 and the second car wheel 332 are symmetrically arranged. The positions of the first counterweight wheel 361 and the second counterweight wheel 362 are also symmetrically arranged.

[0063] Under the above structure, the traction rope 32 sequentially bypasses the first car wheel 331, the car reverse rope wheel 34, the second car wheel 332, the traction machine 31, the first counterweight wheel 361, the counterweight reverse rope wheel 35, and the second counterweight wheel 362.

[0064] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered to be within the scope described in this specification.

[0065] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. An anti-sinking lifting elevator system, characterized in that: include: A car (2) is arranged in the hoistway (1); A traction module (3) is connected to the car (2) and is capable of driving the car (2) to ascend / descend in the shaft (1) along the extension direction of the shaft (1); The anti-sinking module (4) comprises an anti-sinking rope (41) and an anti-sinking component (42); the anti-sinking rope (41) is fixedly connected to the car (2) and is used to apply an upward pulling force to the car (2); the anti-sinking component (42) is connected to the anti-sinking rope (41); during the ascending / descending movement of the car (2), the anti-sinking component (42) drives the anti-sinking rope (41) to maintain a pulling state on the car (2).

2. The anti-sinking lifting elevator system according to claim 1, characterized in that: During the ascent / descent of the car (2), the anti-sinking component (42) drives the anti-sinking rope (41) to maintain a tensioned state, so as to maintain the car (2) in a pulling state.

3. The anti-sinking lifting elevator system according to claim 2, characterized in that: The anti-sinking component (42) comprises a first rope wheel (421), a second rope wheel (422) and a rope clamp (423); along the extension direction of the hoistway (1), the first rope wheel (421) is located above the car (2), and the second rope wheel (422) is located below the car (2); the two ends of the anti-sinking rope (41) are respectively sleeved on the first rope wheel (421) and the second rope wheel (422) and are in a tensioned state; the rope clamp (423) clamps the anti-sinking rope (41) to limit the movement of the anti-sinking rope (41) relative to the rope clamp (423).

4. The anti-sinking lifting elevator system according to claim 3, characterized in that: The anti-sinking component (42) further comprises a bracket (424), the car (2) is arranged on the bracket (424) and is fixedly connected to the bracket (424); an end of the bracket (424) extends out of a side wall of the car (2), and the anti-sinking rope (41) is connected to a portion of the bracket (424) extending out of the side wall of the car (2).

5. The anti-sinking lifting elevator system according to claim 3, characterized in that: The anti-sinking component (42) further comprises a first fixed beam (425) and a second fixed beam (426). Along the extension direction of the hoistway (1), the first fixed beam (425) is arranged above the car (2), and the first rope pulley (421) and the rope clamp (423) are arranged on the first fixed beam (425); the second fixed beam (426) is arranged below the car (2), and the second rope pulley (422) is arranged on the second fixed beam (426).

6. The anti-sinking lifting elevator system according to claim 5, characterized in that: Along the extension direction of the shaft (1), the shaft (1) has an upper part (11) and a bottom part (12); the upper part (11) is provided with a load-bearing beam (427); the first fixed beam (425) is arranged on the load-bearing beam (427); and the second fixed beam (426) is arranged on the bottom part (12).

7. The anti-sinking lifting elevator system according to claim 1, characterized in that: The number of the anti-settling modules (4) is set to an even number, and the even-numbered anti-settling modules (4) are respectively arranged on opposite sides of the car (2) and are symmetrically arranged with respect to the axis of the car (2).

8. The anti-sinking lifting elevator system according to claim 6, characterized in that: The traction module (3) comprises a traction machine (31), a traction rope (32), a car wheel (33), a car return rope pulley (34), a counterweight return rope pulley (35), a counterweight wheel (36) and a counterweight component (37); the car wheel (33) is arranged on the car (2), and the counterweight wheel (36) is arranged on the counterweight component (37); the car return rope pulley (34) and the counterweight return rope pulley (35) are arranged on the load-bearing beam (427); one end of the traction rope (32) is used for being fixedly connected in the hoistway (1), and the other end is used for being fixedly connected in the hoistway (1) after passing through the car wheel (33), the car return rope pulley (34), the traction machine (31), the counterweight wheel (36) and the counterweight return rope pulley (35) in sequence.

9. The anti-sinking lifting elevator system according to claim 8, characterized in that: Along the extension direction of the hoistway (1), the car wheel (33) is arranged on the top of the car (2), and the car return rope pulley (34) is arranged above the car wheel (33); the counterweight wheel (36) is arranged on the top of the counterweight (37), and the counterweight return rope pulley (35) is arranged above the counterweight wheel (36).

10. The anti-sinking lifting elevator system according to claim 9, characterized in that: The car wheel (33) comprises a first car wheel (331) and a second car wheel (332), and the first car wheel (331) and the second car wheel (332) are respectively arranged at the top of the car (2) near the two side edges; the counterweight wheel (36) comprises a first counterweight wheel (361) and a second counterweight wheel (362), and the first counterweight wheel (361) and the second counterweight wheel (362) are respectively arranged at the top of the counterweight (37) near the two side edges; the traction rope (32) passes through the first car wheel (331), the car return rope wheel (34), the second car wheel (332), the traction machine (31), the first counterweight wheel (361), the counterweight return rope wheel (35), and the second counterweight wheel (362) in sequence.

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