Elevator with doors capable of being opened from multiple faces

Abstract

The elevator with the doors capable of being opened from the multiple faces comprises two lift cars, a counterweight and two traction rope assemblies, the two lift cars are arranged in a spaced mode, and the two lift cars can form the lift car doors facing different directions; the counterweight is arranged between the two lift cars; the two hoisting rope assemblies are in one-to-one correspondence with the two lift cars, and the two lift cars can be in transmission connection with the counterweight through the corresponding hoisting rope assemblies; wherein the two hoisting rope assemblies operate synchronously and are used for controlling the two lift cars to ascend and descend synchronously. According to the elevator, doors can be opened in four different directions, in this way, the waiting time of passengers can be shortened, the effect of improving the transportation efficiency of the elevator is achieved, in the process, one counterweight is used for balancing lifting of the two lift cars, in this way, the space needed for counterweight assembly can be reduced, and the elevator shaft of the elevator can be more compact; and the manufacturing cost and the mounting cost of the elevator are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field related to elevators, and in particular relates to an elevator with doors that can be opened on multiple sides. Background Art

[0002] Currently, traditional elevators consist of a single car with a counterweight. Because the weight balancing and guide systems occupy space on both sides of the shaft, they are generally limited to two-door openings. Achieving a three- or four-door configuration requires a complex structure and control system, which is not only difficult to maintain but also poses safety risks. However, with the continuous innovation of architectural design and people's increasing demand for convenience, elevators with doors opening in four directions are expected to be used in more places. This is especially true in modern, large-scale complexes, where they can improve traffic efficiency and provide a more convenient travel experience. Elevators with multi-door openings provide direct access to multiple areas in different directions, reducing the length of aisles and corridors and thus making more efficient use of building space. Therefore, designing a simple multi-door elevator is particularly necessary. Utility Model Content

[0003] In view of this, the present application provides an elevator with simplified structure, low cost and multi-door opening capability.

[0004] An elevator with doors that can be opened on multiple sides, running in an elevator shaft, comprising:

[0005] Two elevator cars, the two elevator cars are arranged at an interval, and the two elevator cars can form elevator car doors facing different directions;

[0006] a counterweight disposed between the two cars;

[0007] Two traction rope assemblies, the two traction rope assemblies corresponding to the two cars one-to-one, and the two cars can be respectively connected to the counterweight through the corresponding traction rope assemblies;

[0008] The two traction rope assemblies operate synchronously to control the synchronous lifting and lowering of the two cars.

[0009] It can be understood that through the above-mentioned structural setting, the two cars can run synchronously and can open the doors in multiple different directions, which can shorten the waiting time of passengers and improve the transportation efficiency of the elevator. In this process, a counterweight is used to balance the lifting and lowering of the two cars, which can reduce the space required for the assembly of the counterweight, make the elevator shaft of the elevator more compact, and reduce the manufacturing cost and installation cost of the elevator.

[0010] In one embodiment, the counterweight includes a counterweight device and two counterweight wheels, and the two counterweight wheels are mounted on the counterweight device;

[0011] Wherein, each of the traction rope assemblies includes a traction rope, which is transmission-connected to the corresponding car. The traction rope can be divided into a first traction rope and a second traction rope. The first traction rope is transmission-connected to one of the counterweight wheels, and the second traction rope is transmission-connected to the other counterweight wheel.

[0012] It can be understood that the above-mentioned structural arrangement can meet the use requirements of the two cars being connected to the counterweight through their respective traction rope assemblies for transmission.

[0013] In one embodiment, each of the traction rope assemblies further includes a traction wheel and a guide wheel, the guide wheel is arranged in the same direction as the traction wheel, and the counterweight wheel and the traction wheel are arranged crosswise, and each of the traction ropes is guided by the corresponding guide wheel to between the two counterweight wheels and then divided into the first traction rope part and the second traction rope part, and is wound along the two counterweight wheels close to the corresponding car side.

[0014] It can be understood that, through the above-mentioned structural arrangement, it is possible to ensure that both the first and second traction ropes can pass around two pairs of heavy wheels while avoiding the risk of crossing and causing wear of the traction ropes.

[0015] In one embodiment, each of the traction rope assemblies further includes a car top wheel, and the car top wheel is arranged in the same direction as the traction wheel;

[0016] The elevator shaft is cross-arranged with a main load-bearing beam and a secondary load-bearing beam. One end of the traction rope is fixedly connected to the main load-bearing beam, and the other end is divided into the first traction rope part and the second traction rope part after winding through the car top wheel, the traction wheel, and the guide wheel in sequence.

[0017] The first and second traction rope parts are connected and fixed to the secondary load-bearing beam after passing through the corresponding counterweight wheels.

[0018] It can be understood that through the above structural setting, a traction ratio of 2:1 can be achieved, making traction safer and more labor-saving.

[0019] In one embodiment, the main load-bearing beam extends along the center line connecting the two cars and is connected to the two ends of the elevator shaft, the secondary load-bearing beam coincides with the midpoint of the main load-bearing beam and is connected to the other two ends of the elevator shaft, and the first part of the traction rope and the second part of the traction rope are respectively fixed on both sides of the main load-bearing beam.

[0020] It can be understood that the above-described structural arrangement satisfies the transmission connection between the first and second traction ropes and the two counterweight pulleys, and meets the requirement that a single counterweight can balance the simultaneous raising and lowering of two elevator cars. The positioning of the above-described main and secondary load-bearing beams ensures that the traction rope assembly is connected to the center of the two elevator cars, making the traction structure safer and more stable.

[0021] In one embodiment, the elevator further comprises two car guide systems, and the two car guide systems are provided in a one-to-one correspondence with the two cars;

[0022] Among them, each of the car guide systems includes two car guide rails fixed to the elevator shaft, and the two car guide rails are arranged at the diagonal positions of the corresponding cars and are respectively slidably connected to the cars, so that the diagonal directions of the two cars can form car doors with different directions.

[0023] It can be understood that two diagonally arranged car guide rails are used to meet the lifting and lowering operations of the car, which can effectively utilize the space of the elevator shaft, so that the setting of the car guide rails does not affect the opening of the four doors of the elevator.

[0024] In one embodiment, the elevator further includes a car corridor, and the two cars can be connected through the car corridor;

[0025] wherein each of the cars comprises two car doors;

[0026] The elevator shaft, the car corridor and the two cars together form a counterweight operation area. The counterweight includes a counterweight device and two counterweight guide rails. The two counterweight guide rails are installed on the elevator shaft in the counterweight operation area. The counterweight device is slidably connected between the two counterweight guide rails.

[0027] It can be understood that the car corridor connects the two cars and balances the weight of the two cars; at the same time, the space between the car corridor and the shaft is used to place the counterweight, making full use of the shaft space.

[0028] In one embodiment, the two cars have equal mass.

[0029] It can be understood that since the masses of the two cars are equal, the two cars have higher stability and safety when they are raised and lowered synchronously.

[0030] In one embodiment, the traction ratio of the traction rope assembly is 2:1;

[0031] The mass of the car is set to P, and the rated load capacity of the car is set to Q. Then, the total mass of the counterweight is 2(P+KQ), where 0.5≥K≥0.4.

[0032] It can be understood that the above structural arrangement can ensure the smooth operation of the elevator.

[0033] In one embodiment, the traction rope assembly includes a traction machine;

[0034] The traction machines in the two traction rope assemblies share a controller, and the controller can control the two traction machines to operate synchronously.

[0035] It is understandable that one controller is used to control the two traction machines to operate in the same manner, which ensures that the two cars move up and down synchronously when the elevator is working, so as to meet the normal operation requirements of the elevator.

[0036] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0037] The elevator for which protection is sought in this application has two cars that run synchronously and can open doors in multiple directions. This can shorten the waiting time for passengers and improve the transportation efficiency of the elevator. During this process, a counterweight is used to balance the rising and falling of the two cars. This can reduce the space required for counterweight assembly, making the elevator shaft of the elevator more compact and reducing the manufacturing and installation costs of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 This is a schematic diagram of the structure of the elevator provided in this application.

[0040] Figure 2 This is a schematic diagram of the structure of the two traction rope assemblies arranged in this application.

[0041] Figure 3 This is a schematic diagram of the structure when the traction rope is wound around the car top wheel, traction wheel, guide wheel and counterweight wheel in this application.

[0042] Figure 4 This is a schematic diagram of the traction rope winding in this application.

[0043] Figure 5 for Figure 4 Middle AA section view.

[0044] Figure numerals: 100, elevator; 10, car; 11, car door; 12, car guide system; 121, car guide rail; 13, car corridor; 14, car top wheel; 20, counterweight; 21, counterweight device; 22, counterweight wheel; 23, counterweight guide rail; 24, counterweight rope head plate; 30, traction rope assembly; 31, traction rope; 311, traction rope part one; 312, traction rope part two; 32, main load-bearing beam; 321, support beam; 33, traction wheel; 34, guide wheel; 35, secondary load-bearing beam; 36, car rope head plate; 200, elevator shaft. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] It should be noted that when an element is referred to as being “provided on” another element, it may be directly provided on the other element or there may be an intermediate element. When an element is considered to be “provided on” another element, it may be directly provided on the other element or there may be an intermediate element. When an element is considered to be “fixed to” another element, it may be directly fixed to the other element or there may be an intermediate element.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] like Figure 1 、 Figure 2 As shown, in one embodiment, the elevator 100 provided in the present application runs in an elevator shaft 200; wherein, the elevator 100 includes two cars 10, a counterweight 20 and two traction rope assemblies 30, the two cars 10 are arranged at intervals, and the two cars 10 can form car doors 11 with different directions from each other; the counterweight 20 is arranged at a position between the two cars 10; the two traction rope assemblies 30 correspond to the two cars 10 one by one, and the two cars 10 can be respectively connected to the counterweight 20 through the corresponding traction rope assemblies 30; wherein, the two traction rope assemblies 30 run synchronously to control the two cars 10 to rise and fall synchronously.

[0049] As can be seen from the above, the elevator 100 of the present application is arranged in an elevator shaft 200, and the synchronous lifting and lowering of two cars 10 is used to realize the opening of doors in four different directions. This can shorten the waiting time of passengers and improve the transportation efficiency of the elevator 100. In this process, a counterweight 20 is used to balance the lifting and lowering of the two cars 10. This can reduce the space required for the assembly of the counterweight 20, so that the elevator shaft 200 of the elevator 100 can be more compact, and the manufacturing cost and installation cost of the elevator 100 can be reduced.

[0050] It should be noted that the elevator 100 of the present application can be used in places with high passenger flow and concentrated use during peak hours. Since the elevator 100 can achieve coordinated operation of the two elevator cars 10, this can improve transportation efficiency and reduce passenger waiting time. The four-way door opening of the elevator 100 of the present application can also directly lead to multiple areas in different directions, thereby reducing the length of the passageway and the elevator car corridor 13, thereby more effectively utilizing the building space.

[0051] like Figure 1 As shown, in one embodiment, the masses of the two cars 10 are equal. Specifically, the two cars 10 can be configured with the same structure, which can ensure that the top wheels 14 of the two cars 10 are subjected to equal forces, thereby enabling the two cars 10 to have higher stability and safety when they are lifted and lowered synchronously.

[0052] Furthermore, the traction ratio of the traction rope assembly 30 is 2:1, which makes this traction structure more labor-saving and safer. Assuming that the mass of the car 10 is set to P and the rated load capacity of the car 10 is set to Q, the total mass of the counterweight 20 is 2(P+KQ), where 0.5≥K≥0.4, where K is the balance coefficient of the elevator 100. This design ensures smooth operation of the elevator 100.

[0053] like Figure 1As shown, in one embodiment, the elevator 100 further includes two car guide systems 12, which are arranged in a one-to-one correspondence with the two cars 10; wherein each car guide system 12 includes two car guide rails 121 fixed to the elevator shaft 200, and the two car guide rails 121 are arranged at diagonal positions of the corresponding car 10 and are respectively slidably connected to the car 10, so that the diagonal directions of the two cars 10 can form car doors 11 with different orientations. In other words, the elevator 100 of this embodiment uses two diagonally arranged car guide rails 121 to meet the lifting and lowering operations of the car 10, which can effectively utilize the space of the elevator shaft 200, so that the arrangement of the car guide rails 121 does not affect the opening of the four doors of the elevator 100. Here, the midpoint of the line connecting the two car guide rails 121 coincides with the center of the corresponding car 10, and the car 10 can be slidably connected to the car guide rails 121 using car guide shoes (not shown) on both sides of the inclined upper beam (not shown), so that the car door 11 of the car 10 can avoid the inclined upper beam. Specifically, in this embodiment, the above-mentioned two car guide rails 121 are connected and fixed to the side wall of the elevator shaft 200 through a bottom bracket and a surface bracket.

[0054] like Figure 1As shown, in one embodiment, the elevator 100 further includes a car corridor 13, through which the two cars 10 can be connected; wherein each car 10 includes two car doors 11. Here, the elevator shaft 200, the car corridor 13, and the two cars 10 together form a counterweight operation area. The counterweight 20 includes a counterweight device 21 and two counterweight guide rails 23. The two counterweight guide rails 23 are installed on the elevator shaft 200 in the counterweight operation area, and the counterweight device 21 is slidably connected between the two counterweight guide rails 23. The car corridor 13 realizes the connection between the two cars 10, so that when passengers take the elevator 100, they can choose the nearest car door 11 according to their destination to enter and exit the corresponding car 10, thereby reducing the walking distance and time, so that the elevator 100 can better meet the needs of large passenger flow and complex flow. Here, the two car doors 11 of one car 10 are arranged on the left and rear sides of the car 10, and the two car doors 11 of the other car 10 are arranged on the right and front sides of the car 10, and the two The four car doors 11 of each car 10 can be controlled together through the same circuit board, so that the four car doors 11 can be opened individually, multiple times, or all of them; at the same time, the car corridor 13 can also balance the weight of the two cars 10, thereby improving the safety of the system; in addition, the counterweight 20 is placed in the space between the car corridor 13 and the elevator shaft 200, further saving shaft space. Since both counterweight guide rails 23 need to be fixed on the elevator shaft 200, the counterweight device 21 is arranged parallel to the car corridor 13. Specifically, the two sides of the counterweight device 21 of the present application can be slidably connected to the two counterweight guide rails 23 through counterweight guide shoes (not shown), wherein the two counterweight guide rails 23 can also be connected and fixed to the wall of the elevator shaft 200 through corresponding bottom code brackets and surface code brackets. Preferably, the counterweight device 21 is arranged at the center of the elevator 100.

[0055] like Figure 1 、 Figure 3 As shown, in one embodiment, the counterweight 20 includes a counterweight device 21 and two counterweight pulleys 22, and the two counterweight pulleys 22 are mounted on the counterweight device 21. Each traction rope assembly 30 includes a traction rope 31, which is transmission-connected to the corresponding car 10. The traction rope 31 can be divided into a first traction rope portion 311 and a second traction rope portion 312. The first traction rope portion 311 is transmission-connected to one of the counterweight pulleys 22, and the second traction rope portion 312 is transmission-connected to the other counterweight pulley 22, thereby constructing a traction ratio of 2:1.

[0056] Furthermore, if Figures 3 to 5As shown, each traction rope assembly 30 further includes a traction sheave 33 and a guide sheave 34. The counterweight sheave 22 and the traction sheave 33 are arranged crosswise, that is, the radial direction of the counterweight sheave 22 is arranged crosswise with the radial direction of the traction sheave 33; the guide sheave 34 and the traction sheave 33 are arranged in the same direction, that is, the radial direction of the guide sheave 34 and the radial direction of the traction sheave 33 are arranged in the same direction; each traction rope 31 is guided by the corresponding guide sheave 34 to between the two counterweight sheaves 22 and then divided into a traction rope part 311 and a traction rope part 312, and is wound along the two counterweight sheaves 22 near the corresponding car 10 side; that is, there are a total of four groups of traction ropes between the two counterweight sheaves 22, as shown in FIG. Figure 4 As shown, they are two groups of traction ropes 31 connected to the left car 10 and two groups of traction ropes 31 connected to the right car 10; Figure 3 and 5 As shown, since the counterweight wheel 22 and the guide wheel 34 are arranged crosswise, the first traction rope portion 311 and the second traction rope portion 312 of the traction rope 31 connected to the left car 10 can respectively pass around the left half rope grooves of the two counterweight wheels 22 ( Figure 5 The first traction rope portion 311 and the second traction rope portion 312 of the traction rope 31 connected to the right car 10 can respectively pass around the right half rope grooves of the two counterweight wheels 22 ( Figure 5 ). For example, the counterweight pulley 22 is perpendicular to the guide pulley 34 and the traction sheave 33. Each counterweight pulley 22 has 8 rope grooves. Thus, each counterweight pulley 22 has 4 rope grooves facing the left car 10 and 4 rope grooves facing the right car 10. Each traction rope 31 includes 8 steel ropes. The first traction rope portion 311 and the second traction rope portion 312 both have 4 steel ropes. Thus, the traction rope 31 connected to the left car 10 has 4 steel ropes passing around the 4 rope grooves on the left side of one counterweight pulley 22, and the other 4 steel ropes passing around the 4 rope grooves on the left side of the other counterweight pulley 22. The traction rope 31 connected to the right car 10 has 4 steel ropes passing around the remaining 4 rope grooves on the right side of one counterweight pulley 22, and the other 4 steel ropes passing around the remaining 4 rope grooves on the right side of the other counterweight pulley 22. The advantage of such a design is that the traction rope 31 directed to between the two counterweight wheels 22 will not cause interlaced friction during the process of passing through the counterweight wheels 22, thereby improving safety and stability.

[0057] Furthermore, each traction rope assembly 30 includes a car top pulley 14, which is co-oriented with the traction sheave 33. Specifically, the radial direction of the car top pulley 14 and the traction sheave 33 are aligned. A main load-bearing beam 32 and a secondary load-bearing beam 35 are intersectingly arranged within the elevator shaft 200. One end of the traction rope 31 is connected and fixed to the main load-bearing beam 32, while the other end, after passing through the car top pulley 14, the traction sheave 33, and the guide sheave 34, is split into a first traction rope 311 and a second traction rope 312. The first and second traction ropes 311, 312, then pass through their corresponding counterweight pulleys 22 and are connected and fixed to the secondary load-bearing beam 35. This arrangement achieves a 2:1 traction ratio, and the ends of the traction rope 31 are secured by the intersecting main load-bearing beam 32 and secondary load-bearing beam 35, providing enhanced safety.

[0058] Specifically, a car rope end plate 36 is fixedly mounted on the upper surface of the main load-bearing beam 32. One end of the traction rope 31, after passing through the traction sheave 33, can be fixed to the car rope end plate 36. The counterweight 20 also includes two counterweight rope end plates 24, which are arranged one-to-one with the two counterweight sheaves 22. The counterweight rope end plates 24 are fixedly mounted on the secondary load-bearing beam 35. The first and second traction rope portions 311 and 312 are respectively connected and fixed to the corresponding counterweight rope end plates 24 after passing through the corresponding counterweight sheaves 22. The traction sheave 33 is fixed to the main load-bearing beam 32 via a base, and a buffer pad is provided at the connection between the base and the main load-bearing beam 32. The guide pulley 34 is mounted on the lower surface of the main load-bearing beam 32 via a rotating shaft.

[0059] like Figures 2 to 4 As shown, in one embodiment, a main load-bearing beam 32 extends along the centerline connecting the two elevator cars 10 and is connected to both ends of the elevator shaft 200. A secondary load-bearing beam 35 coincides with the midpoint of the main load-bearing beam 32 and is connected to the other ends of the elevator shaft 200. The first and second traction rope sections 311 and 312 are respectively fixed to either side of the main load-bearing beam 32. This ensures a traction ratio of 2:1 for the traction rope assembly 30 and connects the traction rope assembly to the center of the two elevator cars, making the traction structure safer and more stable. The secondary load-bearing beam 35 can also support the main load-bearing beam 32.

[0060] Specifically, if Figure 3 、 Figure 4As shown, one end of the traction rope 31 in the traction rope assembly 30 that controls the lifting of one of the cars 10 can be hung on the car rope head plate 36 of the car 10, and then wrapped around the car top wheel 14, the traction wheel 33 and the guide wheel 34 on the car 10. Under the diversion of the guide wheel 34, the traction rope 31 wrapped around the guide wheel 34 can be evenly divided into a first traction rope 311 and a second traction rope 312, wherein the first traction rope 311 can be connected and fixed to one of the counterweight rope head plates 24 after wrapping around the corresponding one of the counterweight wheels 22, and the second traction rope 312 can be connected and fixed to the other counterweight rope head plate 24 after wrapping around the other corresponding counterweight wheel 22. Here, the two counterweight rope head plates 24 are common to the two traction rope parts 1 311 and the traction rope parts 2 312 in the two traction rope assemblies 30; wherein, the centers of the above-mentioned car top wheel 14, traction wheel 33, guide wheel 34 and two counterweight wheels 22 are arranged coaxially to make the traction ratio of the elevator 100 2:1 and realize dual-drive counterweight.

[0061] In one embodiment, a bearing plate (not shown) is connected to the main bearing beam 32 , and both ends of the main bearing beam 32 can be fixedly mounted on the bearing holes of the machine room through the bearing plates.

[0062] Furthermore, support beams 321 are connected to the bottoms of both sides of the main load-bearing beam 32. The ends of the support beams 321 can also be mounted on the machine room's load-bearing holes via load-bearing plates. This facilitates leveling of the main load-bearing beam 32 during installation in the machine room's load-bearing holes and reduces vibrations associated with subsequent operation of the elevator 100. It should be noted that the aforementioned load-bearing plates can specifically be load-bearing steel plates. It is understood that in other embodiments, the aforementioned load-bearing plates can also be other alloy plates.

[0063] In one embodiment, the traction rope assembly 30 further includes a traction machine (not shown), and the traction sheave 33 is mounted on the traction machine to provide power for the rotation of the traction sheave 33 and to operate the traction rope assembly 30. The traction machines in the two traction rope assemblies 30 share a controller (not shown), and the controller is capable of controlling the two traction machines to operate in the same manner. This ensures that the two cars 10 move up and down synchronously when the elevator 100 is in operation, thereby meeting the requirements for the normal operation of the elevator 100. Here, the controller may specifically include a frequency converter and a circuit board. It should be noted that the controller controls the two traction machines to operate in unison, thereby ensuring that the two cars 10 have the same running direction, synchronous start and stop, and running speed, and achieve synchronous lifting and lowering of the two cars 10.

[0064] In summary, the elevator 100 of the present application connects two cars 10 to the same counterweight 20, which reduces the space occupied by the counterweight 20 in the elevator shaft 200, making the elevator shaft 200 of the elevator 100 more compact. The car guide system of the car 10 is arranged at the diagonal corners of the car 10. The reasonable layout facilitates the arrangement of the four car doors 11 of the elevator 100 with different directions. The guide pulley 34 is used to divert the traction rope 31, and a common counterweight pulley 22 is used. This eliminates the need for a return rope pulley, making the synchronous operation of the cars 10 in the elevator 100 more stable.

[0065] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. An elevator with doors that can be opened on multiple sides, running in an elevator shaft (200), characterized in that: The elevator (100) comprises: Two elevator cars (10), the two elevator cars (10) are arranged at intervals, and the two elevator cars (10) can form elevator car doors (11) facing in different directions from each other; a counterweight (20) disposed between the two elevator cars (10); Two traction rope assemblies (30), the two traction rope assemblies (30) corresponding to the two cars (10) one by one, and the two cars (10) can be respectively connected to the counterweight (20) through the corresponding traction rope assemblies (30); The two traction rope assemblies (30) operate synchronously to control the synchronous lifting of the two cars (10).

2. The elevator with multi-door opening according to claim 1, characterized in that: The counterweight (20) includes a counterweight device (21) and two counterweight wheels (22), and the two counterweight wheels (22) are installed on the counterweight device (21); Each of the traction rope assemblies (30) includes a traction rope (31), the traction rope (31) is connected to the corresponding car (10), and the traction rope (31) can be divided into a first traction rope (311) and a second traction rope (312). The first traction rope (311) is connected to one of the counterweight wheels (22), and the second traction rope (312) is connected to the other counterweight wheel (22).

3. The elevator with multi-door opening according to claim 2, characterized in that: Each of the traction rope assemblies (30) further includes a traction wheel (33) and a guide wheel (34). The guide wheel (34) and the traction wheel (33) are arranged in the same direction. The counterweight wheel (22) and the traction wheel (33) are arranged crosswise. Each of the traction ropes (31) is guided by the corresponding guide wheel (34) to between the two counterweight wheels (22) and then divided into the first traction rope part (311) and the second traction rope part (312). The ropes are then wound along the two counterweight wheels (22) close to the corresponding side of the car (10).

4. The elevator with multi-door opening according to claim 3, characterized in that: Each of the traction rope assemblies (30) further includes a car top wheel (14), wherein the car top wheel (14) and the traction wheel (33) are arranged in the same direction; A main load-bearing beam (32) and a secondary load-bearing beam (35) are cross-arranged in the elevator shaft (200); one end of the traction rope (31) is connected and fixed to the main load-bearing beam (32); and the other end is divided into the first traction rope portion (311) and the second traction rope portion (312) after winding through the car top wheel (14), the traction wheel (33), and the guide wheel (34) in sequence; The first traction rope part (311) and the second traction rope part (312) are connected and fixed to the secondary load-bearing beam (35) after passing through the corresponding counterweight wheel (22).

5. The elevator with multi-door opening according to claim 4, characterized in that: The main load-bearing beam (32) extends along the center line connecting the two elevator cars (10) and is connected to the two ends of the elevator shaft (200); the secondary load-bearing beam (35) coincides with the midpoint of the main load-bearing beam (32) and is connected to the other two ends of the elevator shaft (200); the first traction rope (311) and the second traction rope (312) are respectively fixed to the two sides of the main load-bearing beam (32).

6. The elevator with multi-door opening according to claim 1, characterized in that: The elevator (100) further includes two car guide systems (12), wherein the two car guide systems (12) are arranged in a one-to-one correspondence with the two cars (10); Each of the car guide systems (12) includes two car guide rails (121) fixed to the elevator shaft (200), and the two car guide rails (121) are arranged at diagonal positions of the corresponding cars (10) and are respectively slidably connected to the cars (10), so that the diagonal directions of the two cars (10) can form the car doors (11) in different directions.

7. The elevator with multi-door opening according to claim 1, characterized in that: The elevator (100) further includes a car corridor (13), and the two cars (10) can be connected via the car corridor (13); Each of the elevator cars (10) includes two elevator car doors (11); The elevator shaft (200), the car corridor (13) and the two cars (10) together form a counterweight operation area, the counterweight (20) includes a counterweight device (21) and two counterweight guide rails (23), the two counterweight guide rails (23) are installed on the elevator shaft (200) in the counterweight operation area, and the counterweight device (21) is slidably connected between the two counterweight guide rails (23).

8. The elevator with multi-door opening according to claim 1, characterized in that: The masses of the two cars (10) are equal.

9. The elevator with multi-door opening according to claim 8, characterized in that: The traction ratio of the traction rope assembly (30) is 2:1; The mass of the car (10) is set to P, and the rated load capacity of the car (10) is set to Q. Then, the total mass of the counterweight (20) is 2(P+KQ), where 0.5≥K≥0.

4.

10. The elevator with multi-door opening according to claim 1, characterized in that: The traction rope assembly (30) includes a traction machine; The traction machines in the two traction rope assemblies (30) share a controller, and the controller can control the two sets of traction machines to operate synchronously.

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