Elevator system

Abstract

The utility model relates to an elevator system. The elevator system comprises an upper car; the lower lift car is positioned below the upper lift car; an upper car counterweight; the first guide device and the second guide device are arranged in the shaft pit; and a first compensation rope; wherein the two ends of the first compensation rope are connected to the bottom of the upper lift car counterweight, and the first compensation rope bypasses the first guide device and the second guide device, then extends upwards to the upper lift car guide wheel at the top of the upper lift car and bypasses the upper lift car guide wheel at the top of the upper lift car; or the two ends of the first compensation rope are connected to the top of the upper lift car, and the first compensation rope bypasses the first guide device and the second guide device, then extends upwards to the upper lift car counterweight guide wheel of the upper lift car counterweight and bypasses the upper lift car counterweight guide wheel of the upper lift car counterweight. According to the elevator system, a maintainer can easily observe the connection condition of the compensation rope, and the maintenance difficulty is reduced to a great extent.

Description

Technical Field

[0001] The utility model relates to an elevator system. Background Art

[0002] The existing double-car elevator system generally includes two cars, an upper car and a lower car. The compensating rope of the upper car is generally connected to the bottom of the upper car. This connection relationship has the following problems: it is not easy to observe the connection status of the compensating rope, and maintenance is difficult.

[0003] Therefore, there is a need for further improvement in the connection scheme of the compensating rope of the upper car of the existing double-car elevator system.

[0004] The information disclosed in the background part of the present invention is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide an elevator system, which enables maintenance personnel to observe the connection status of the compensation rope more easily, thereby greatly reducing the difficulty of maintenance.

[0006] The utility model provides an elevator system, which includes: an upper car; a lower car, which is located below the upper car; an upper car counterweight; a first guide device and a second guide device, which are arranged at the bottom pit of a shaft; and a first compensation rope; wherein both ends of the first compensation rope are connected to the bottom of the upper car counterweight, and the first compensation rope passes around the first guide device and the second guide device and then extends upward to the upper car guide wheel at the top of the upper car, and passes around the upper car guide wheel at the top of the upper car; or, both ends of the first compensation rope are connected to the top of the upper car, and the first compensation rope passes around the first guide device and the second guide device and then extends upward to the upper car counterweight guide wheel of the upper car counterweight, and passes around the upper car counterweight guide wheel of the upper car counterweight.

[0007] Preferably, the elevator system further comprises: a first traction rope, a first end of which is connected to the top of the upper car, the first traction rope extends upward to the first traction wheel of the first traction machine and bypasses the first traction wheel, after bypassing the first traction wheel, the first traction rope extends downward to the top of the upper car counterweight, and the second end of the first traction rope is connected to the top of the upper car counterweight.

[0008] Preferably, the elevator system further comprises: a lower car counterweight; and a second traction rope, a first end of which is connected to a position at the top of the hoistway corresponding to the upper car or a position in the machine room corresponding to the upper car, and a second end of which is connected to a position at the top of the hoistway corresponding to the lower car counterweight or a position in the machine room corresponding to the lower car counterweight, the second traction rope extends downward to a lower car guide wheel at the top of the lower car or a lower car guide wheel at the bottom of the lower car and bypasses the lower car guide wheel, after bypassing the lower car guide wheel, the second traction rope extends upward to the second traction wheel of the second traction machine and bypasses the second traction wheel, after bypassing the second traction wheel, the second traction rope extends downward to the lower car counterweight guide wheel of the lower car counterweight and bypasses the lower car counterweight guide wheel, and after bypassing the lower car counterweight guide wheel, the second traction rope extends upward to the top of the hoistway or the machine room.

[0009] Preferably, two upper car guide wheels are provided on the top of the upper car, and the two upper car guide wheels are provided on opposite sides of the top of the upper car and protrude laterally outward from the top of the upper car.

[0010] Preferably, the top of the upper car has a first rope end termination device and a second rope end termination device, the first rope end termination device and the second rope end termination device are arranged on opposite sides of the top of the upper car and protrude laterally outward from the top of the upper car, the first end of the first compensation rope is connected to the top of the upper car through the first rope end termination device, and the second end of the first compensation rope is connected to the top of the upper car through the second rope end termination device.

[0011] Preferably, the lower car guide wheels at the top of the lower car are arranged on opposite sides of the top of the lower car and protrude laterally outward from the top of the lower car, or the lower car guide wheels at the bottom of the lower car are arranged on opposite sides of the bottom of the lower car and protrude laterally outward from the bottom of the lower car.

[0012] Preferably, the elevator system further includes: a third guide device, which is arranged at the bottom pit of the hoistway; and a second compensating rope, a first end of which is connected to the bottom of the lower car, the second compensating rope extends downward to the third guide device, and after bypassing the third guide device, extends upward to the bottom of the lower car counterweight, the second end of the second compensating rope is connected to the bottom of the lower car counterweight.

[0013] Preferably, the first guide device comprises: a first guide wheel, which is arranged below the lower car; and a second guide wheel, which is arranged below the counterweight of the upper car.

[0014] Preferably, the second guide device comprises: a third guide wheel, which is arranged between the horizontal projection of the upper car and the horizontal projection of the upper car counterweight.

[0015] Preferably, the third guide device includes: a fourth guide wheel, which is arranged below the lower car; and a fifth guide wheel, which is arranged below the counterweight of the lower car.

[0016] Preferably, the second guide device comprises: a sixth guide wheel and a seventh guide wheel, which are arranged between the horizontal projection of the upper car and the horizontal projection of the upper car counterweight.

[0017] Preferably, the elevator system further comprises: a first traction rope, a first end of which is connected to a position at the top of the hoistway corresponding to the upper car or a position in the machine room corresponding to the upper car, the first traction rope extends downward to the upper car guide wheel at the top of the upper car and bypasses the upper car guide wheel, after bypassing the upper car guide wheel, the first traction rope extends upward to the first traction wheel of the first traction machine and bypasses the first traction wheel, after bypassing the first traction wheel, the first traction rope extends downward to the upper car counterweight guide wheel at the top of the upper car counterweight and bypasses the upper car counterweight guide wheel, after bypassing the upper car counterweight guide wheel, the second end of the first traction rope extends upward to the position at the top of the hoistway corresponding to the upper car counterweight or a position in the machine room corresponding to the upper car counterweight.

[0018] Preferably, the elevator system further comprises: a lower car counterweight, a thirteenth rope end termination device is provided on the top of the lower car; a fourth guide device, which is arranged at the top of the hoistway or the machine room and is located above the upper car, the fourth guide device comprising an upper guide wheel assembly and a lower guide wheel assembly located below the upper guide wheel assembly, the lower guide wheel assembly comprising an eighth guide wheel and a ninth guide wheel, the lower guide wheel assembly comprising a tenth guide wheel and an eleventh guide wheel, the eighth guide wheel and the ninth guide wheel having a first preset spacing therebetween, the tenth guide wheel and the eleventh guide wheel having a second preset spacing therebetween, the first preset spacing being greater than the width of the lower car and the upper car; and a second traction rope, the first end of the second traction rope bypassing the lower car guide wheel, after bypassing the lower car guide wheel, the first end of the second traction rope extends upward to the eighth guide wheel and bypasses the outer side of the eighth guide wheel, after bypassing the outer side of the eighth guide wheel, the first end of the second traction rope extends inwardly and upwardly to the tenth guide wheel, bypasses the inner side of the tenth guide wheel, and after bypassing the After passing the inner side of the tenth guide wheel, the first end of the second hoisting rope extends upward to the second traction wheel of the second hoisting machine and bypasses the second traction wheel of the second hoisting machine. After bypassing the second traction wheel, the first end of the second hoisting rope extends downward to the thirteenth rope end termination device on the top of the lower car counterweight and is fixed on the thirteenth rope end termination device; the second end of the second traction rope bypasses the lower car guide wheel, and after bypassing the lower car guide wheel, the second end of the second traction rope extends upward to the ninth guide wheel and bypasses the outer side of the ninth guide wheel. After bypassing the outer side of the ninth guide wheel, the second end of the second traction rope extends inwardly and upward to the eleventh guide wheel and bypasses the inner side of the eleventh guide wheel. After bypassing the inner side of the eleventh guide wheel, the second end of the second traction rope extends upward to the second traction wheel of the second hoisting machine and bypasses the second traction wheel of the second hoisting machine. After bypassing the second traction wheel, the second end of the second traction rope extends downward to the thirteenth rope end termination device on the top of the lower car counterweight and is fixed on the thirteenth rope end termination device.

[0019] The elevator system of the utility model connects the compensating rope of the upper car to the top of the upper car, so that maintenance personnel can more easily observe the connection status of the compensating rope, thereby greatly reducing the difficulty of maintenance.

[0020] The method and apparatus of the present invention have other characteristics and advantages, which will be apparent from the drawings and subsequent embodiments incorporated herein, or will be described in detail in the drawings and subsequent embodiments incorporated herein, which together are used to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a first embodiment of an elevator system of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the positional relationship between the guide wheels of the middle and upper car and the common guide rail;

[0023] Figure 3 for Figure 1 Schematic diagram of the positional relationship between the middle and lower car guide wheels and the common guide rail;

[0024] Figure 4 It is a structural schematic diagram of a second embodiment of the elevator system of the utility model;

[0025] Figure 5 for Figure 4 A schematic diagram of the positional relationship between the first rope end termination device, the second rope end termination device and the common guide rail;

[0026] Figure 6 for Figure 4 Schematic diagram of the positional relationship between the middle and lower car guide wheels and the common guide rail;

[0027] Figure 7 It is a structural schematic diagram of a third embodiment of the elevator system of the utility model;

[0028] Figure 8 It is a structural schematic diagram of a fourth embodiment of the elevator system of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of a fifth embodiment of the elevator system of the utility model;

[0030] Fig.10 is a structural schematic diagram of a fourth guide device;

[0031] Fig.11 It is a top view of the fourth guide device.

[0032] Description of reference numerals:

[0033] 1: Fourth guide wheel 2: Fifth guide wheel

[0034] 3: Second compensation rope 4: First guide wheel

[0035] 5: Second guide wheel 6: First compensation rope

[0036] 7: The third guide wheel 8: The tenth rope end terminal device

[0037] 9: Lower car 10: Lower car guide wheel

[0038] 11: Lower car guide wheel 12: Second traction rope

[0039] 13: Upper car 14: Fifth rope end termination device

[0040] 15: Sixth rope end terminal device 16: Upper car counterweight

[0041] 17: Fourth rope end terminal device 18: Upper car guide wheel

[0042] 19: Upper car guide wheel 20: Third rope end terminal device

[0043] 21: Seventh rope end terminal device 22: Lower car counterweight

[0044] 23: Lower car counterweight guide wheel 24: Ninth rope end terminal device

[0045] 25: Eighth rope end terminal device 26: First traction rope

[0046] 27: Upper car counterweight guide wheel 28: Lower car guide wheel

[0047] 29: Lower car guide wheel 30: First rope end terminal device

[0048] 31: Second rope end connection device 32: First traction wheel

[0049] 33: Second traction wheel 34: Sixth guide wheel

[0050] 35: Seventh guide wheel 36: Thirteenth rope end connection device

[0051] 41: Common rail 42: Common rail

[0052] 51: Upper car guide wheel 52: Upper car counterweight guide wheel

[0053] 61: Eleventh rope end connection device 62: Twelfth rope end connection device

[0054] 71: Lower guide wheel assembly 72: Ninth guide wheel

[0055] 73: tenth guide wheel 74: eleventh guide wheel.

[0056] It should be understood that the drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of the present invention. The specific design features disclosed in the present invention (including, for example, specific dimensions, directions, positions, and shapes) will be determined in part by the specific intended application and use environment.

[0057] In the figures, like reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0058] Reference will be made in detail to various embodiments of the present invention, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. On the contrary, the present invention is intended to cover not only these exemplary embodiments, but also various alternative forms, modified forms, equivalent forms and other embodiments that may be included in the spirit of the present invention and within the scope defined by the appended claims.

[0059] When an element is referred to as being “on” or “over” another element, the element may be in contact with the other element or intervening elements may also be present.

[0060] Figure 1 It is a structural schematic diagram of a first embodiment of an elevator system of the utility model; Figure 2 for Figure 1 Schematic diagram of the positional relationship between the middle and upper car guide wheels 18, 19 and the common guide rails 41, 42, Figure 2 It is obtained by observing the upper car 13 from above and below; Figure 3 for Figure 1 Schematic diagram of the positional relationship between the middle and lower car guide wheels 10, 11 and the common guide rails 41, 42, Figure 3 It is obtained by observing the lower car 9 from above and below; Figure 4 It is a structural schematic diagram of a second embodiment of the elevator system of the utility model; Figure 5 for Figure 4 Schematic diagram of the positional relationship between the first rope end termination device 30, the second rope end termination device 31 and the common guide rails 41, 42, Figure 5 It is obtained by observing the upper car 13 from above and below; Figure 6 for Figure 4 Schematic diagram of the positional relationship between the middle and lower car guide wheels 28, 29 and the common guide rails 41, 42, Figure 6 It is obtained by observing the lower car 9 from above and below; Figure 7 It is a structural schematic diagram of a third embodiment of the elevator system of the utility model; Figure 8 It is a structural schematic diagram of a fourth embodiment of the elevator system of the utility model; Fig. 9 It is a structural schematic diagram of a fifth embodiment of the elevator system of the utility model; Fig.10 is a structural schematic diagram of a fourth guide device;

[0061] Fig.11 is a top view of the fourth guide device, Fig.11 for Fig.10 A top view with part of the housing omitted.

[0062] The first compensation rope and the second compensation rope mentioned in the embodiment of the utility model can be a conventional compensation rope made of multiple strands of high-strength steel wire rope, or a compensation chain mainly composed of a chain structure.

[0063] Combine the following Figure 1 and Figure 4 An elevator system according to an embodiment of the present invention is described.

[0064] The elevator system of the implementation scheme of the utility model includes: an upper car 13, a lower car 9, an upper car counterweight 16, a first guide device, a second guide device and a first compensation rope 6.

[0065] The lower car 9 is located below the upper car 13. The upper car 13 and the lower car 9 can move up and down along a common rail in the same hoistway, and the common rail is not shown in the drawings. The common rail extends in a vertical direction. There are generally two common rails, which are arranged on opposite sides of the lower car 9.

[0066] The first guide device and the second guide device are arranged at the bottom pit of the hoistway.

[0067] The two ends of the first compensation rope 6 are connected to the bottom of the upper car counterweight 16, and the first compensation rope 6 passes around the first guide device and the second guide device and then extends upward to the upper car guide wheels 18 and 19 at the top of the upper car 13, and passes around the upper car guide wheels 18 and 19 at the top of the upper car 13 (see Figure 1 ). The connection here can be a fixed connection, a spring connection or other connection methods.

[0068] Alternatively, both ends of the first compensation rope 6 are connected to the top of the upper car 13, and the first compensation rope 6 passes around the first guide device and the second guide device and then extends upward to the upper car counterweight guide wheel 27 of the upper car counterweight 16, and passes around the upper car counterweight guide wheel 27 of the upper car counterweight 16 (see Figure 4 ).

[0069] The implementation scheme of the utility model connects the compensating rope of the upper car to the top of the upper car, so that maintenance personnel can easily observe the connection status of the compensating rope, which greatly reduces the difficulty of maintenance.

[0070] The elevator system will be described in detail below with reference to detailed drawings and embodiments.

[0071] First embodiment

[0072] like Figure 1As shown, the elevator system includes an upper car 13, a lower car 9, an upper car counterweight 16, a lower car counterweight 22, a first guide device, a second guide device, a third guide device, a first traction rope 26, a first compensation rope 6, a second traction rope 12, a second compensation rope 3, a first traction machine and a second traction machine.

[0073] The top of the hoistway or the machine room is provided with an eighth rope end termination device 25 and a ninth rope end termination device 24. The eighth rope end termination device 25 is provided above the upper car 13, and the ninth rope end termination device 24 is provided above the lower car counterweight 22. The first traction machine and the second traction machine are provided at the top of the hoistway. The first traction machine has a first traction sheave 32 to pull the upper car 13, and the second traction machine has a second traction sheave 33 to pull the lower car 9.

[0074] The upper car 13 and the lower car 9 operate independently, and the upper car counterweight 16 and the lower car counterweight 22 are distributed independently.

[0075] The first guide device, the second guide device and the third guide device are arranged at the bottom pit of the hoistway.

[0076] like Figure 1 As shown, the top of the upper car 13 is provided with a third rope end termination device 20, and the first traction rope 26 is connected to the top of the upper car 13 through the third rope end termination device 20. Specifically, the third rope end termination device 20 is arranged in the middle of the top of the upper car 13.

[0077] like Figure 1 As shown, the top of the upper car 13 is provided with an upper car guide wheel 18 and an upper car guide wheel 19, which are arranged on opposite sides of the top of the upper car 13 and protrude laterally outward from the top of the upper car 13, and the first compensation rope 6 passes around the upper car guide wheel 18 and the upper car guide wheel 19 on the top of the upper car 13.

[0078] Two common guide rails 41 and 42 are arranged in the elevator shaft, and the upper car 13 and the lower car 9 slide up and down along the common guide rails 41 and 42. Figure 2 As shown, the two common guide rails 41, 42 are distributed in the middle of the left and right sides of the upper car 13, the upper car guide wheel 18 is located at the front position on the left side of the upper car 13, and the upper car guide wheel 19 is located at the rear position on the right side of the upper car 13. The angle ∠1 between the line L2 connecting the upper car guide wheel 18 and the upper car guide wheel 19 and the line L1 connecting the two common guide rails 41, 42 is in the range of 0° to 45°.

[0079] like Figure 1As shown, a fourth rope end termination device 17 is provided on the top of the upper car counterweight 16, and the first traction rope 26 is connected to the top of the upper car counterweight 16 through the fourth rope end termination device 17. Specifically, the fourth rope end termination device 17 is arranged in the middle of the top of the upper car counterweight 16.

[0080] like Figure 1 As shown, a fifth rope end termination device 14 and a sixth rope end termination device 15 are provided at the bottom of the upper car counterweight 16, the first end of the first compensation rope 6 is connected to the bottom of the upper car counterweight 16 through the fifth rope end termination device 14, and the second end of the first compensation rope 6 is connected to the bottom of the upper car counterweight 16 through the sixth rope end termination device 15. The fifth rope end termination device 14 and the sixth rope end termination device 15 are provided on opposite sides of the bottom of the upper car counterweight 16.

[0081] In one embodiment, if Figure 1 As shown, a lower car guide wheel 10 and a lower car guide wheel 11 are provided on the top of the lower car 9. Specifically, the lower car guide wheel 10 and the lower car guide wheel 11 are provided on opposite sides of the top of the lower car 9 and protrude laterally outward from the top of the lower car 9. The second traction rope 12 can pass around the lower car guide wheel 10 and the lower car guide wheel 11.

[0082] Specifically, Figure 3 As shown, the two common guide rails 41, 42 are distributed in the middle of the left and right sides of the lower car 9, the lower car guide wheel 10 is located at the front position on the left side of the lower car 9, and the lower car guide wheel 11 is located at the rear position on the right side of the lower car 9. The angle ∠2 between the line L3 connecting the lower car guide wheel 10 and the lower car guide wheel 11 and the line L1 connecting the two common guide rails 41, 42 is in the range of 0° to 45°.

[0083] In an exemplary embodiment, Figure 1 As shown, the bottom of the lower car 9 is provided with a tenth rope end termination device 8. Specifically, the tenth rope end termination device 8 is arranged in the middle of the bottom of the lower car 9. The first end of the second compensation rope 3 is connected to the bottom of the lower car 9 through the tenth rope end termination device 8.

[0084] like Figure 1 As shown, a lower car counterweight guide wheel 23 is provided on the top of the lower car counterweight 22. Specifically, the lower car counterweight guide wheel 23 is arranged in the middle of the top of the lower car counterweight 22. The second traction rope 12 can pass around the lower car counterweight guide wheel 23 of the lower car counterweight 22.

[0085] like Figure 1As shown, a seventh rope end termination device 21 is provided at the bottom of the lower car counterweight 22, specifically, the seventh rope end termination device 21 is provided in the middle of the bottom of the lower car counterweight 22. The second end of the second compensation rope 3 is connected to the bottom of the lower car counterweight 22 through the seventh rope end termination device 21.

[0086] like Figure 1 As shown, the first guide device includes: a first guide wheel 4 and a second guide wheel 5. The first guide wheel 4 and the second guide wheel 5 are substantially in the same horizontal plane. The first guide wheel 4 is arranged below the lower car 9, and the second guide wheel 5 is arranged below the counterweight 16 of the upper car.

[0087] Specifically, in Figure 1 In the figure, the first guide wheel 4 is below the upper car guide wheel 18 of the upper car 13, and the second guide wheel 5 is below the sixth rope end termination device 15 at the bottom of the upper car counterweight 16.

[0088] like Figure 1 As shown, the second guide device includes: a third guide wheel 7, and the third guide wheel 7 is arranged between the horizontal projection of the upper car 13 and the horizontal projection of the upper car counterweight 16.

[0089] like Figure 1 As shown, the third guide device includes a fourth guide wheel 1 and a fifth guide wheel 2. The fourth guide wheel 1 and the fifth guide wheel 2 are substantially in the same horizontal plane. The fourth guide wheel 1 is arranged below the lower car 9, and the fifth guide wheel 2 is arranged below the counterweight 22 of the lower car.

[0090] Specifically, the fourth guide wheel 1 is arranged below the tenth rope end termination device 8 of the lower car 9, and the fifth guide wheel 2 is arranged below the seventh rope end termination device 21 of the lower car counterweight 22.

[0091] The first end of the first hoisting rope 26 is connected to the third rope end termination device 20 at the top of the upper car 13, and the first hoisting rope 26 extends upward to the first traction wheel 32 of the first traction machine and bypasses the first traction wheel 32. After bypassing the first traction wheel 32, the first hoisting rope 26 extends downward to the top of the upper car counterweight 16, and the second end of the first hoisting rope 26 is connected to the fourth rope end termination device 17 at the top of the upper car counterweight 16. The first hoisting rope 26 is used to connect the upper car 13 and the upper car counterweight 16, and relies on the first traction machine to drive the upper car 13 to make the upper car 13 rise and fall.

[0092] The first end of the first compensating rope 6 is connected to the fifth rope end termination device 14 at the bottom of the upper car counterweight 16, and the first compensating rope 6 extends downward from the fifth rope end termination device 14 to the third guide wheel 7 and bypasses the third guide wheel 7. After bypassing the third guide wheel 7, the first compensating rope 6 extends upward to the upper car guide wheel 19 of the upper car 13 and bypasses the upper car guide wheel 19. After bypassing the upper car guide wheel 19, the first compensating rope 6 extends to the side away from the upper car counterweight 16 and bypasses the upper car guide wheel 18 of the upper car 13 and bypasses the upper car guide wheel 18. After bypassing the upper car guide wheel 18, the first compensating rope 6 extends downward to the first guide wheel 4 of the first guide device and bypasses the first guide wheel 4. After bypassing the first guide wheel 4, the first compensating rope 6 extends to the side close to the upper car counterweight 16 and bypasses the second guide wheel 5 of the first guide device. After passing around the second guide wheel 5, the first compensating rope 6 extends upward to the sixth rope end termination device 15 of the upper car counterweight 16, and the second end of the first compensating rope 6 is connected to the sixth rope end termination device 15 of the upper car counterweight 16. The first compensating rope 6 is used to compensate for the weight of the first traction rope 26 to maintain the stability and safety of the upper car 13 in operation.

[0093] The first end of the second hoisting rope 12 is connected to the eighth rope end termination device 25 of the hoistway or the machine room. The second hoisting rope 12 extends downward from the eighth rope end termination device 25 to the lower car guide wheel 10 of the lower car 9 and bypasses the lower car guide wheel 10. After bypassing the lower car guide wheel 10, the second hoisting rope 12 extends to the lower car guide wheel 11 to the side close to the lower car counterweight 22 and bypasses the lower car guide wheel 11. After bypassing the lower car guide wheel 11, the second hoisting rope 12 extends upward to the second traction sheave 33 of the second traction machine and bypasses the second traction sheave 33 of the second traction machine. After bypassing the second traction sheave 33, the second hoisting rope 12 extends downward to the lower car counterweight guide wheel 23 at the top of the lower car counterweight 22 and bypasses the lower car counterweight guide wheel 23. After passing the lower car counterweight guide wheel 23, the second traction rope 12 extends upward to the ninth rope end terminal 24 of the hoistway or the machine room, and the second end of the second traction rope 12 is connected to the ninth rope end terminal 24. The second traction rope 12 is used to connect the lower car 9 and the lower car counterweight 22, and drives the lower car 9 by the second traction machine to make the lower car 9 rise and fall.

[0094] In the prior art, the second traction rope 12 requires at least three fixed points connected to the shaft / machine room and the lower car 9, while the second traction rope 12 of the present embodiment is wrapped around the top lower car guide wheel 10 and the lower car guide wheel 11 on the lower car 9, and only needs to be connected at both ends to the eighth rope end termination device 25 and the ninth rope end termination device 24. The entire second traction rope 12 only requires two fixed points, reducing the installation operations.

[0095] The first end of the second compensating rope 3 is connected to the tenth rope end termination device 8 of the lower car 9. The second compensating rope 3 extends downward from the tenth rope end termination device 8 to the fourth guide wheel 1 of the third guide device and bypasses the fourth guide wheel 1. After bypassing the fourth guide wheel 1, the second compensating rope 3 extends to the side close to the lower car counterweight 22 to the fifth guide wheel 2 of the third guide device and bypasses the fifth guide wheel 2. After the fifth guide wheel 2, the second compensating rope 3 extends upward to the seventh rope end termination device 21 of the lower car counterweight 22, and the second end of the second compensating rope 3 is connected to the seventh rope end termination device 21 of the lower car counterweight 22. The second compensating rope 3 is used to compensate for the weight of the second traction rope 12 to maintain the stability and safety of the operation of the lower car 9.

[0096] This embodiment connects the first compensation rope 6 of the upper car 13 to the upper car guide wheel 18 and the upper car guide wheel 19 at the top of the upper car 13, so that maintenance personnel can easily observe the connection status of the compensation rope, which greatly reduces the difficulty of maintenance.

[0097] Second embodiment

[0098] like Figure 4 As shown, the elevator system includes an upper car 13, a lower car 9, an upper car counterweight 16, a lower car counterweight 22, a first guide device, a second guide device, a third guide device, a first traction rope 26, a first compensation rope 6, a second traction rope 12, a second compensation rope 3, a first traction machine and a second traction machine.

[0099] Among them, the lower car counterweight 22, the second guide device, the third guide device, the first traction machine and the second traction machine are the same as those in the first embodiment and are not described again here.

[0100] The upper car 13 and the lower car 9 operate independently, and the upper car counterweight 16 and the lower car counterweight 22 are distributed independently.

[0101] like Figure 4 As shown, a third rope end termination device 20 is provided on the top of the upper car 13. The arrangement of the third rope end termination device 20 is the same as that of the first embodiment and will not be described again.

[0102] like Figure 4As shown, the top of the upper car 13 has a first rope end termination device 30 and a second rope end termination device 31, the first rope end termination device 30 and the second rope end termination device 31 are arranged on opposite sides of the top of the upper car 13 and protrude laterally outward from the top of the upper car 13, the first end of the first compensation rope 6 is connected to the top of the upper car 13 through the first rope end termination device 30, and the second end of the first compensation rope 6 is connected to the top of the upper car 13 through the second rope end termination device 31. The angle between the connecting line of the first rope end termination device 30 and the second rope end termination device 31 and the connecting line of the two common guide rails is in the range of 0° to 45°. Specifically, as Figure 5 As shown, the two common guide rails 41, 42 are distributed in the middle of the left and right sides of the upper car 13, the first rope termination device 30 is located at the front position on the left side of the upper car 13, and the second rope termination device 31 is located at the rear position on the right side of the upper car 13. The angle ∠3 between the line L4 connecting the first rope termination device 30 and the second rope termination device 31 and the line L1 connecting the two common guide rails 41, 42 is in the range of 0° to 45°.

[0103] like Figure 4 As shown, a fourth rope end termination device 17 is provided on the top of the upper car counterweight 16. The arrangement of the fourth rope end termination device 17 is the same as that of the first embodiment and will not be described again here.

[0104] like Figure 4 As shown, an upper car counterweight guide wheel 27 is provided at the bottom of the upper car counterweight 16. Specifically, the upper car counterweight guide wheel 27 is arranged in the middle of the bottom of the upper car counterweight 16. The first compensation rope 6 can pass around the upper car counterweight guide wheel 27.

[0105] like Figure 4 As shown, the bottom of the lower car 9 is provided with a lower car guide wheel 28 and a lower car guide wheel 29, which are arranged on opposite sides of the bottom of the lower car 9 and protrude laterally outward from the bottom of the lower car 9. The second traction rope 12 introduced later can pass around the lower car guide wheel 28 and the lower car guide wheel 29. The angle between the line connecting the lower car guide wheel 28 and the lower car guide wheel 29 and the line connecting the two common guide rails is in the range of 0° to 45°. Specifically, as Figure 6 As shown, the two common guide rails 41, 42 are distributed in the middle of the left and right sides of the lower car 9, the lower car guide wheel 28 is located at the front position on the left side of the lower car 9, and the lower car guide wheel 29 is located at the rear position on the right side of the lower car 9. The angle ∠4 between the line L5 connecting the lower car guide wheel 28 and the lower car guide wheel 29 and the line L1 connecting the two common guide rails 41, 42 is in the range of 0° to 45°.

[0106] like Figure 4As shown, a tenth rope end termination device 8 is provided at the bottom of the lower car 9. The arrangement of the tenth rope end termination device 8 is the same as that of the first embodiment and will not be described again.

[0107] In an exemplary embodiment, Figure 4 As shown, the first guide device includes: a first guide wheel 4 and a second guide wheel 5. The first guide wheel 4 and the second guide wheel 5 are substantially in the same horizontal plane. The first guide wheel 4 is arranged below the lower car 9, and the second guide wheel 5 is arranged below the counterweight 16 of the upper car.

[0108] Specifically, in Figure 4 In the figure, the first guide wheel 4 is below the first rope end termination device 30 of the upper car 13, and the second guide wheel 5 is below the upper car counterweight guide wheel 27 at the bottom of the upper car counterweight 16.

[0109] The winding conditions of the first traction rope 26 and the second compensation rope 3 are the same as those in the first embodiment and will not be described again here.

[0110] The first end of the first compensating rope 6 is connected to the first rope end termination device 30 at the top of the upper car 13, and the first compensating rope 6 extends downward from the first rope end termination device 30 to the first guide wheel 4 and bypasses the first guide wheel 4. After bypassing the first guide wheel 4, the first compensating rope 6 extends to the second guide wheel 5 on the side close to the upper car counterweight 16 and bypasses the second guide wheel 5. After bypassing the second guide wheel 5, the first compensating rope 6 extends upward to the upper car counterweight guide wheel 27 at the bottom of the upper car counterweight 16 and bypasses the upper car counterweight guide wheel 27. After bypassing the upper car counterweight guide wheel 27, the first compensating rope 6 extends downward to the third guide wheel 7. After the third guide wheel 7, the first compensating rope 6 extends upward to the second rope end termination device 31 of the upper car 13, and the second end of the first compensating rope 6 is connected to the second rope end termination device 31.

[0111] The first end of the second hoisting rope 12 is connected to the eighth rope end termination device 25 of the hoistway or the machine room. The second hoisting rope 12 extends downward from the eighth rope end termination device 25 to the lower car guide wheel 28 of the lower car 9 and bypasses the lower car guide wheel 28. After bypassing the lower car guide wheel 28, the second hoisting rope 12 extends to the lower car guide wheel 29 to the side close to the lower car counterweight 22 and bypasses the lower car guide wheel 29. After bypassing the lower car guide wheel 29, the second hoisting rope 12 extends upward to the second traction sheave 33 of the second traction machine and bypasses the second traction sheave 33 of the second traction machine. After bypassing the second traction sheave 33, the second hoisting rope 12 extends downward to the lower car counterweight guide wheel 23 at the top of the lower car counterweight 22 and bypasses the lower car counterweight guide wheel 23. After passing around the lower car counterweight guide wheel 23 , the second hoisting rope 12 extends upward to a ninth rope end termination device 24 of the hoistway or the machine room, and the second end of the second hoisting rope 12 is connected to the ninth rope end termination device 24 .

[0112] Different from the first embodiment, the second traction rope 12 of this embodiment is wound around the lower car guide wheel 28 and the lower car guide wheel 29 at the bottom of the lower car 9. The entire second traction rope 12 also only needs two fixing points, reducing installation operations.

[0113] This embodiment connects the first compensating rope 6 of the upper car 13 to the first rope end termination device 30 and the second rope end termination device 31 at the top of the upper car 13, so that maintenance personnel can easily observe the connection status of the compensating rope, which greatly reduces the difficulty of maintenance.

[0114] Third embodiment

[0115] like Figure 7 As shown, the elevator system includes an upper car 13, a lower car 9, an upper car counterweight 16, a lower car counterweight 22, a first guide device, a second guide device, a third guide device, a first traction rope 26, a first compensation rope 6, a second traction rope 12, a second compensation rope 3, a first traction machine and a second traction machine.

[0116] The difference between this embodiment and the second embodiment lies in the connection method of the first traction rope 26. Figure 7 In the embodiment, an upper car guide wheel 51 is provided on the top of the upper car 13, and an upper car counterweight guide wheel 52 is provided on the top of the upper car counterweight 16. Specifically, the upper car guide wheel 51 is provided in the middle of the top of the upper car 13, and the upper car counterweight guide wheel 52 is provided in the middle of the top of the upper car counterweight 16.

[0117] The top of the hoistway or the machine room is provided with an eleventh rope end termination device 61 and a twelfth rope end termination device 62.

[0118] The eleventh rope end termination device 61 is arranged above the upper car guide wheel 51 of the upper car 13, and the twelfth rope end termination device 62 is arranged above the upper car counterweight guide wheel 52 of the upper car counterweight 16.

[0119] The first end of the first hoisting rope 26 is connected to the eleventh rope end termination device 61 above the upper car 13, and the first hoisting rope 26 extends downward to the upper car guide wheel 51 at the top of the upper car 13 and bypasses the upper car guide wheel 51. After bypassing the upper car guide wheel 51, the first hoisting rope 26 extends upward to the first traction wheel 32 of the first traction machine and bypasses the first traction wheel 32. After bypassing the first traction wheel 32, the first hoisting rope 26 extends downward to the upper car counterweight guide wheel 52 at the top of the upper car counterweight 16 and bypasses the upper car counterweight guide wheel 52. After bypassing the upper car counterweight guide wheel 52, the first hoisting rope 26 extends upward to the twelfth rope end termination device 62 above the upper car counterweight guide wheel 52, and the second end of the first hoisting rope 26 is connected to the twelfth rope end termination device 62.

[0120] Fourth embodiment

[0121] like Figure 8 As shown, the elevator system includes an upper car 13, a lower car 9, an upper car counterweight 16, a lower car counterweight 22, a first guide device, a second guide device, a third guide device, a first traction rope 26, a first compensation rope 6, a second traction rope 12, a second compensation rope 3, a first traction machine and a second traction machine.

[0122] The difference between this embodiment and the second embodiment is that the second guide device is composed of Figure 4 The third guide wheel 7 is changed into a sixth guide wheel 34 and a seventh guide wheel 35 , and the diameter of the sixth guide wheel 34 and the diameter of the seventh guide wheel 35 are both smaller than the diameter of the third guide wheel 7 .

[0123] Fifth embodiment

[0124] like Fig. 9 , Fig.10 and Fig.11 As shown, the elevator system includes an upper car 13, a lower car 9, an upper car counterweight 16, a lower car counterweight 22, a first guide device, a second guide device, a third guide device, a fourth guide device, a first traction rope 26, a first compensation rope 6, a second traction rope 12, a second compensation rope 3, a first traction machine and a second traction machine.

[0125] The difference between this embodiment and the second embodiment is that:

[0126] A lower car guide wheel 10 and a lower car guide wheel 11 are provided on the top of the lower car 9 .

[0127] The top of the lower cage counterweight 22 has a thirteenth rope end terminating device 36. Specifically, the thirteenth rope end terminating device 36 is arranged in the middle of the top of the lower cage counterweight 22.

[0128] A fourth guide device is added to the top of the hoistway or the machine room. The fourth guide device is located above the upper car. The fourth guide device includes an upper guide wheel assembly and a lower guide wheel assembly located below the upper guide wheel assembly. The lower guide wheel assembly includes an eighth guide wheel 71 and a ninth guide wheel 72. The lower guide wheel assembly includes a tenth guide wheel 73 and an eleventh guide wheel 74. There is a first preset spacing between the eighth guide wheel 71 and the ninth guide wheel 72, and there is a second preset spacing between the tenth guide wheel 73 and the eleventh guide wheel 74. The first preset spacing is greater than the width of the lower car 9 and the upper car 13, and the second preset spacing is smaller.

[0129] The first end of the second hoisting rope 12 passes around the lower car guide wheel 10. After passing around the lower car guide wheel 10, the first end of the second hoisting rope 12 extends upward to the eighth guide wheel 71 and passes around the outer side of the eighth guide wheel 71 (the side away from the ninth guide wheel 72). After passing around the outer side of the eighth guide wheel 71, the first end of the second hoisting rope 12 extends inwardly and upwardly to the tenth guide wheel 73 and passes around the inner side of the tenth guide wheel 73 (the side close to the eleventh guide wheel 74). After passing around the inner side of the tenth guide wheel 73, the first end of the second hoisting rope 12 extends upward to the second traction sheave 33 of the second traction machine and passes around the second traction sheave 33 of the second traction machine. After passing around the second traction sheave 33, the first end of the second hoisting rope 12 extends downward to the thirteenth rope end termination device 36 at the top of the lower car counterweight 22. The first end of the second hoisting rope 12 is connected to the top of the lower car counterweight 22.

[0130] The second end of the second hoisting rope 12 passes around the lower car guide wheel 11. After passing around the lower car guide wheel 11, the second end of the second hoisting rope 12 extends upward to the ninth guide wheel 72 and passes around the outer side of the ninth guide wheel 72 (the side away from the eighth guide wheel 71). After passing around the outer side of the ninth guide wheel 72, the second end of the second hoisting rope 12 extends inwardly and upwardly to the eleventh guide wheel 74 and passes around the inner side of the eleventh guide wheel 74 (the side close to the tenth guide wheel 73). After passing around the inner side of the eleventh guide wheel 74, the second end of the second hoisting rope 12 extends upward to the second traction sheave 33 of the second traction machine and passes around the second traction sheave 33 of the second traction machine. After passing around the second traction sheave 33, the second end of the second hoisting rope 12 extends downward to the thirteenth rope end termination device 36 at the top of the lower car counterweight 22. The second end of the second hoisting rope 12 is connected to the top of the lower car counterweight 22.

[0131] For convenience of interpretation and precise definition of the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upper", "lower", "upward", "downward", "front", "back", "back", "inside", "outside", "inward", "outward", "interior", "exterior", "inner", "external", "forward", and "backward" are used to describe the features of the exemplary embodiments with reference to the positions of such features as shown in the accompanying drawings.

[0132] The description presented above of the specific exemplary embodiments of the utility model is for the purpose of illustration and description. The foregoing description is not intended to be exhaustive, nor is it intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations are possible based on the above teachings. The exemplary embodiments are selected and described in order to explain the specific principles of the utility model and its practical application, so that other technicians in the field can realize and utilize the various exemplary embodiments of the utility model and its different selected forms and modified forms. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An elevator system, characterized in that: include: Get on the car; a lower car, which is located below the upper car; Upper car counterweight; A first guide device and a second guide device, which are arranged at the bottom pit of the hoistway; as well as The first compensation rope; Wherein, both ends of the first compensation rope are connected to the bottom of the upper car counterweight, and the first compensation rope passes around the first guide device and the second guide device and then extends upward to the upper car guide wheel at the top of the upper car, and passes around the upper car guide wheel at the top of the upper car; Alternatively, both ends of the first compensation rope are connected to the top of the upper car, and the first compensation rope passes around the first guide device and the second guide device and then extends upward to the upper car counterweight guide wheel of the upper car counterweight, and passes around the upper car counterweight guide wheel of the upper car counterweight.

2. The elevator system according to claim 1, characterized in that It further includes: a first traction rope, a first end of which is connected to the top of the upper car, the first traction rope extends upward to the first traction wheel of the first hoisting machine and bypasses the first traction wheel, after bypassing the first traction wheel, the first traction rope extends downward to the top of the upper car counterweight, and the second end of the first traction rope is connected to the top of the upper car counterweight.

3. The elevator system according to claim 1, characterized in that It further includes: Lower car counterweight; and A second traction rope, a first end of which is connected to a position at the top of the shaft corresponding to the upper car or a position in the machine room corresponding to the upper car, and a second end of which is connected to a position at the top of the shaft corresponding to the lower car counterweight or a position in the machine room corresponding to the lower car counterweight, the second traction rope extends downward to the lower car guide wheel at the top of the lower car or the lower car guide wheel at the bottom of the lower car and bypasses the lower car guide wheel, after bypassing the lower car guide wheel, the second traction rope extends upward to the second traction wheel of the second traction machine and bypasses the second traction wheel, after bypassing the second traction wheel, the second traction rope extends downward to the lower car counterweight guide wheel of the lower car counterweight and bypasses the lower car counterweight guide wheel, after bypassing the lower car counterweight guide wheel, the second traction rope extends upward to the top of the shaft or the machine room.

4. The elevator system according to claim 1, characterized in that Two upper car guide wheels are provided on the top of the upper car. The two upper car guide wheels are provided on opposite sides of the top of the upper car and protrude laterally outward from the top of the upper car.

5. The elevator system according to claim 1, characterized in that The top of the upper car is provided with a first rope end termination device and a second rope end termination device, which are arranged on opposite sides of the top of the upper car and protrude laterally outward from the top of the upper car, and the first end of the first compensation rope is connected to the top of the upper car through the first rope end termination device, and the second end of the first compensation rope is connected to the top of the upper car through the second rope end termination device.

6. The elevator system according to claim 3, characterized in that The lower car guide wheels at the top of the lower car are arranged on opposite sides of the top of the lower car and protrude laterally outward from the top of the lower car, or the lower car guide wheels at the bottom of the lower car are arranged on opposite sides of the bottom of the lower car and protrude laterally outward from the bottom of the lower car.

7. The elevator system according to claim 3, characterized in that It further includes: A third guide device is arranged at the bottom pit of the hoistway; and A second compensation rope, a first end of which is connected to the bottom of the lower car, the second compensation rope extends downward to the third guide device, and after bypassing the third guide device, extends upward to the bottom of the lower car counterweight, and the second end of the second compensation rope is connected to the bottom of the lower car counterweight.

8. The elevator system according to claim 1, characterized in that The first guiding device comprises: A first guide wheel, which is arranged below the lower car; and The second guide wheel is arranged below the upper car counterweight.

9. The elevator system according to claim 1, characterized in that The second guiding device comprises: The third guide wheel is arranged between the horizontal projection of the upper car and the horizontal projection of the upper car counterweight.

10. The elevator system according to claim 7, characterized in that The third guiding device comprises: a fourth guide wheel disposed below the lower car; and A fifth guide wheel is arranged below the lower car counterweight.

11. The elevator system according to claim 1, characterized in that The second guiding device comprises: The sixth guide wheel and the seventh guide wheel are arranged between the horizontal projection of the upper car and the horizontal projection of the upper car counterweight.

12. The elevator system according to claim 1, characterized in that It further includes: a first traction rope, a first end of which is connected to a position at the top of the hoistway corresponding to the upper car or a position in the machine room corresponding to the upper car, the first traction rope extends downward to the upper car guide wheel at the top of the upper car and bypasses the upper car guide wheel, after bypassing the upper car guide wheel, the first traction rope extends upward to the first traction wheel of the first traction machine and bypasses the first traction wheel, after bypassing the first traction wheel, the first traction rope extends downward to the upper car counterweight guide wheel at the top of the upper car counterweight and bypasses the upper car counterweight guide wheel, after bypassing the upper car counterweight guide wheel, the second end of the first traction rope extends upward to the top of the hoistway corresponding to the upper car counterweight or a position in the machine room corresponding to the upper car counterweight.

13. The elevator system according to claim 1, characterized in that It further includes: a lower car counterweight having a thirteenth rope end termination device on the top; a fourth guide device, which is arranged at the top of the hoistway or the machine room and is located above the upper car, the fourth guide device includes an upper guide wheel assembly and a lower guide wheel assembly located below the upper guide wheel assembly, the lower guide wheel assembly includes an eighth guide wheel and a ninth guide wheel, the lower guide wheel assembly includes a tenth guide wheel and an eleventh guide wheel, there is a first preset distance between the eighth guide wheel and the ninth guide wheel, there is a second preset distance between the tenth guide wheel and the eleventh guide wheel, and the first preset distance is greater than the width of the lower car and the upper car; and a second hoisting rope, wherein the first end of the second hoisting rope passes around the guide wheel of the lower car, and after passing around the guide wheel of the lower car, the first end of the second hoisting rope extends upward to the eighth guide wheel and passes around the outer side of the eighth guide wheel, and after passing around the outer side of the eighth guide wheel, the first end of the second hoisting rope extends inwardly and upwardly to the tenth guide wheel and passes around the inner side of the tenth guide wheel, and after passing around the inner side of the tenth guide wheel, the first end of the second hoisting rope extends upward to the second traction wheel of the second traction machine and passes around the second traction wheel of the second traction machine, and after passing around the second traction wheel, the first end of the second hoisting rope extends downwardly to the thirteenth rope end termination device on the top of the counterweight of the lower car, and is fixed to the thirteenth rope end termination device; The second end of the second hoisting rope passes around the lower car guide wheel. After passing around the lower car guide wheel, the second end of the second hoisting rope extends upward to the ninth guide wheel and passes around the outer side of the ninth guide wheel. After passing around the outer side of the ninth guide wheel, the second end of the second hoisting rope extends inward and upward to the eleventh guide wheel and passes around the inner side of the eleventh guide wheel. After passing around the inner side of the eleventh guide wheel, the second end of the second hoisting rope extends upward to the second traction wheel of the second hoisting machine and passes around the second traction wheel of the second hoisting machine. After passing around the second traction wheel, the second end of the second hoisting rope extends downward to the thirteenth rope end termination device on the top of the lower car counterweight and is fixed on the thirteenth rope end termination device.

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