Sectional compensation mechanism of elevator counterweight device, elevator counterweight device, and elevator installation

Abstract

The utility model provides a kind of segmented compensation mechanism of elevator counterweight device, elevator counterweight device and elevator equipment, the segmented compensation mechanism of elevator counterweight device, comprising: fixed base, counter pulley, rope winding device, transmission chain, first counterweight, several second counterweights and connecting rope;The counter pulley is rotatably arranged on the fixed base, a plurality of transmission gear portions are provided on the counter pulley, and the plurality of transmission gear portions are arranged around the rotation axis of the counter pulley;The first counterweight and the several second counterweights are sequentially arranged on the plurality of support portions from bottom to top respectively.Corresponding to prior art, the segmented compensation mechanism of elevator counterweight device of the utility model can balance the weight change of elevator system by the first counterweight and the second counterweight, with low installation difficulty, and the part of transmission chain between counter pulley and counterweight frame can be always kept taut, so it is not easy to shake, with simple overall structure, small demand for installation environment, and convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to a segmented compensation mechanism for an elevator counterweight device, an elevator counterweight device, and elevator equipment. Background Technology

[0002] When an elevator is running, the weight of the elevator wire rope varies significantly depending on the position of the car. When the elevator car moves upward, the counterweight and wire rope move downward. At this time, the total weight on the counterweight side is the counterweight (fixed weight) + the wire rope (weight change). Conversely, when the elevator car moves downward, the elevator car and wire rope move downward. At this time, the total weight on the car side is the car (fixed weight) + the wire rope (weight change). Therefore, regardless of whether the elevator car moves upward or downward, it will cause a weight imbalance between the elevator car and the counterweight. Therefore, a compensating chain is installed at the bottom of the elevator car and the counterweight, moving in the opposite direction as the car moves up and down (the drooping part of the compensating chain increases when the car moves upward and decreases when it moves downward). Its weight change can offset the weight difference of the wire rope, thereby maintaining the system balance. The compensating chain is roughly arranged in a U-shape.

[0003] However, the compensating chain can cause car misalignment, and the mounting holes for the elevator car cannot be installed everywhere, making it almost impossible for the compensating chain to form a perfect "U" shape. Furthermore, the compensating chain cannot be perfectly positioned at the car's center of gravity; for example, a side-mounted compensating chain can only be mounted on one side. This has been found to cause the entire car to tilt. Although the compensating chain itself is not heavy enough to cause safety issues, the tilted car causes the guide shoes to press against the guide rails, resulting in abnormal noise from the guide shoes during startup. Moreover, because each civil engineering condition is different, the installation position of the compensating chain mounting bracket often cannot meet the installation requirements, sometimes with an excessively large curvature and sometimes with an insufficient curvature. In addition, the compensating chain has many interfering components. According to on-site feedback, potential problems include, but are not limited to, the compensating chain swinging and hitting the counterweight guardrail during operation, abnormal transmission noise after the guide device is impacted, and insufficient installation space for the compensating chain. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies in the prior art and to provide a segmented compensation mechanism for an elevator counterweight device, an elevator counterweight device, and elevator equipment.

[0005] One embodiment of this utility model provides a segmented compensation mechanism for an elevator counterweight device, comprising: A fixed base, wherein multiple support parts are arranged sequentially from top to bottom; A reverse rope wheel is rotatably mounted on the fixed base. The reverse rope wheel is provided with multiple transmission teeth, which are arranged around the rotation axis of the reverse rope wheel. A rope winding device, wherein the rope winding device is mounted on the fixed base; The transmission chain, the rope winding device is driven to the transmission chain, the end of the transmission chain passes around the anti-rope pulley and is then used to connect to the counterweight frame of the elevator, the transmission chain meshes with the transmission teeth, and the movement of the transmission chain will drive the anti-rope pulley to rotate; A first counterweight and several second counterweights are arranged sequentially from bottom to top on several support portions, and the first counterweight and several second counterweights are all located below the anti-rope pulley. A connecting rope, which is connected to the first counterweight and to the anti-rope pulley; When the transmission chain is unwound from the rope winding device, the transmission chain drives the anti-rope wheel to rotate in the first preset direction. The anti-rope wheel winds up the connecting rope, and the connecting rope sequentially drives the first counterweight and several second counterweights to rise from bottom to top, causing the first counterweight and several second counterweights to disengage from the corresponding support portion. When the rope winding device winds up the transmission chain, the transmission chain drives the anti-rope wheel to rotate in a second preset direction. The first preset direction and the second preset direction are opposite. The anti-rope wheel unwinds the connecting rope. The connecting rope drives a number of second counterweights and first counterweights to descend from top to bottom, so that the number of second counterweights and first counterweights are placed on the corresponding support parts in sequence.

[0006] In some alternative embodiments, the second counterweight is provided with movable holes, and the connecting rope passes through the movable holes of the second counterweight sequentially from bottom to top.

[0007] In some alternative embodiments, the anti-cord pulley is provided with a first winding pulley portion and a second winding pulley portion, a plurality of the transmission teeth are arranged around the rotation axis of the first winding pulley portion, the connecting rope is connected to the second winding pulley portion, and the second winding pulley portion is used to wind the connecting rope.

[0008] In some alternative implementations, the segmented compensation mechanism of the elevator counterweight includes two connecting ropes, both of which are connected to the first counterweight and to the anti-rollover pulley.

[0009] In some alternative implementations, the segmented compensation mechanism of the elevator counterweight device includes two connecting ropes, both of which are connected to the first counterweight. The anti-cord pulley is provided with two second winding pulleys, and the two connecting ropes are correspondingly connected to the second winding pulleys.

[0010] In some alternative embodiments, a barrier portion is provided between the first take-up reel portion and the second take-up reel portion; and / or, The diameter of the first take-up roller is larger than the diameter of the second take-up roller, and a step is formed between the first take-up roller and the second take-up roller.

[0011] In some optional embodiments, the plurality of support portions are respectively a first support portion and a plurality of second support portions, the first support portion and the plurality of second support portions being arranged sequentially from bottom to top, the first counterweight being placed on the first support portion, the second counterweight being placed on the second support portion, and a clearance space being formed on the second support portion; wherein, When there is one of each of the second support and the second counterweight, the size of the clearance space is larger than the size of the first counterweight, so that the first counterweight can pass through the clearance space. When the number of the second support and the second counterweight is not less than two, the clearance spaces decrease sequentially from top to bottom. The size of the clearance space of the second support is larger than the size of the second counterweight supported by the adjacent lower second support, so that the second counterweight supported by the adjacent lower second support can pass through the clearance space of the adjacent upper second support. The size of the clearance space of the lowermost second support is larger than the size of the first counterweight, so that the first counterweight can pass through the clearance space of the lowermost second support.

[0012] In some alternative embodiments, the second support includes two support members disposed opposite to each other on the fixed base, and the clearance space is formed between the two support members, which cooperate to support the second counterweight.

[0013] Another embodiment of this utility model provides an elevator counterweight device, including: a counterweight frame and a segmented compensation mechanism as described above for an elevator counterweight device, wherein the end of the transmission chain is connected to the counterweight frame.

[0014] Another embodiment of the present invention provides an elevator device, including: an elevator car, a connector, a fixed pulley, and an elevator counterweight device as described above. The elevator car is connected to the counterweight frame of the elevator counterweight device through the connector, and the connector passes around the fixed pulley.

[0015] Compared with the prior art, the segmented compensation mechanism of the elevator counterweight device of this utility model can balance the weight change of the elevator system through the first counterweight and the second counterweight. It is easy to install, and the transmission chain between the anti-rope pulley and the counterweight frame can always be kept taut, so it is not easy to shake. The overall structure is simple, has low requirements for the installation environment, and is easy to install.

[0016] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the elevator equipment according to an embodiment of the present invention after the elevator car has descended; Figure 2 This is a schematic diagram of the segmented compensation mechanism of an elevator counterweight device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the segmented compensation mechanism of the elevator counterweight device according to an embodiment of the present invention when the elevator car is rising. Figure 4 This is a schematic diagram of the elevator equipment according to an embodiment of the present invention after the elevator car has risen; Figure 5 This is a schematic diagram of the segmented compensation mechanism of the elevator counterweight device according to an embodiment of the present invention during the descent of the elevator car; Figure 6 This is a schematic diagram of the structure of a reverse rope wheel according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 10. Elevator car; 11. Connector; 12. Fixed pulley; 20. Counterweight frame; 30. Fixed base; 31. Support part; 32. First support part; 33. Second support part; 34. Clearance space; 35. Support component; 40. Reverse rope pulley; 41. Transmission gear part; 42. First winding pulley part; 43. Second winding pulley part; 44. Barrier part; 45. Step part; 50. Rope winding device; 60. Transmission chain; 70. First counterweight; 80. Second counterweight; 81. Movable hole; 90. Connecting rope. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Please see Figure 1 and Figure 2 One embodiment of this utility model provides an elevator device, including: an elevator car 10, a connector 11, a fixed pulley 12 and an elevator counterweight device. The elevator counterweight device includes a counterweight frame 20 and a segmented compensation mechanism. The elevator car 10 is connected to the counterweight frame 20 of the elevator counterweight device through the connector 11, and the connector 11 passes around the fixed pulley 12.

[0024] The segmented compensation mechanism includes: a fixed base 30, a reverse rope wheel 40, a rope winding device 50, a transmission chain 60, a first counterweight 70, several second counterweights 80, and a connecting rope 90.

[0025] The mounting base has multiple support parts 31 arranged from top to bottom, and the mounting base can be fixed in a suitable installation position according to the site environment.

[0026] The anti-cord pulley 40 is rotatably mounted on the fixed base 30. The anti-cord pulley 40 is provided with multiple transmission teeth 41, which are arranged around the rotation axis of the anti-cord pulley 40.

[0027] The rope winding device 50 is mounted on the fixed base 30.

[0028] The rope winding device is driven by the transmission chain 60. The end of the transmission chain 60 passes around the anti-rope pulley 40 and is then used to connect with the counterweight frame 20 of the elevator. The transmission chain 60 meshes with the transmission teeth 41. When the transmission chain 60 moves, it will drive the anti-rope pulley 40 to rotate.

[0029] The first counterweight 70 and several second counterweights 80 are arranged sequentially from bottom to top on multiple support parts 31. The first counterweight 70 and several second counterweights 80 are all located below the anti-rope pulley 40. In this embodiment, the example is described with three second counterweights 80.

[0030] The connecting rope 90 is connected to the first counterweight 70 and to the anti-rope pulley 40.

[0031] The end of the transmission chain 60 is connected to the counterweight frame 20.

[0032] Since the segmented compensation mechanism only needs to be connected to the counterweight frame 20 via the transmission chain 60, it does not need to be connected to the elevator car 10. Therefore, the installation is simpler and more convenient, and it is not easily restricted by the site environment.

[0033] The working principle of an elevator device according to one embodiment of the present invention will be explained below: Please see Figures 1 to 3When the elevator car 10 descends, the elevator car 10 will pull the counterweight frame 20 upward through the connector 11. At this time, the portion of the connector 11 between the fixed pulley 12 and the elevator car 10 will increase, thus increasing the total weight on the elevator car 10 side. Meanwhile, the portion of the connector 11 between the fixed pulley 12 and the counterweight frame 20 will decrease, thus decreasing the total weight on the counterweight side. When the counterweight frame 20 rises, it will drive the transmission chain 60 to rise. At this time, the transmission chain 60 will unwind from the rope winding device 50. When the drive chain 60 is unwound from the rope winding device 50, it drives the anti-roll wheel 40 to rotate in the first preset direction. The anti-roll wheel 40 winds up the connecting rope 90, which in turn drives the first counterweight 70 and several second counterweights 80 upwards, causing them to detach from their corresponding support parts 31. The connecting rope 90 first drives the first counterweight 70 to detach from the support part 31. At this point, the compensating force is equal to the weight of the first counterweight 70. This compensating force acts on the anti-roll wheel 40 through the connecting rope 90. The torque generated by this compensating force causes the anti-roll wheel 40 to tend to rotate in the second preset direction. Therefore, this torque can act on the drive chain 60 through the transmission teeth, pulling the end of the drive chain 60 downwards. In other words, the torque generated by the compensating force can be converted into a downward pulling force applied to the counterweight frame 20. This downward pulling force interacts with the side of the elevator car 10. The added connecting parts 11 balance each other's weight, thus achieving weight compensation and balancing the weight of the elevator car 10 side and the counterweight side. As the elevator car 10 continues to descend, the counterweight frame 20 will continue to rise, and the anti-corrosion pulley 40 will continue to rotate in the first preset direction, causing the connecting rope 90 to wind up. The winding of the connecting rope 90 causes the first counterweight 70 to rise. When the first counterweight 70 rises to the position of the second support part 31 from the bottom, the first counterweight 70 will contact the second counterweight 80. Subsequently, the first counterweight 70 will drive the second counterweight 80 to rise and detach from the corresponding support part 31. At this time, the compensation force is equal to the sum of the weight of the first counterweight 70 and the second counterweight 80. As the first counterweight 70 and the second counterweight 80 continue to rise, they will sequentially drive each second counterweight 80 to detach from the support part 31, thus achieving a gradual increase in compensation force.

[0034] Please see Figures 4 to 5When the elevator car 10 rises, the counterweight frame 20 falls accordingly. At this time, the portion of the connector 11 between the fixed pulley 12 and the elevator car 10 will decrease, thus reducing the total weight on the elevator car 10 side. Meanwhile, the portion of the connector 11 between the fixed pulley 12 and the counterweight frame 20 will increase, thus increasing the total weight on the counterweight side. When the counterweight frame 20 falls, it will drive the end of the transmission chain 60 to fall. At this time, the rope winding device 50 needs to actively wind up the transmission chain 60. When the rope winding device 50 winds up the transmission chain 60, the transmission chain 60 drives the anti-rope wheel 40 to rotate in the second preset direction. The first preset direction and the second preset direction are opposite. The anti-rope wheel 40 unwinds the connecting rope 90. Taking the initial state where all the second counterweights 80 are detached from the support part 31 as an example, as the anti-rope wheel 40 unwinds the connecting rope 90, the connecting rope 90 drives several second counterweights 80 and first counterweights 70 to descend from top to bottom, and causes several second counterweights 80 and first counterweights 70 to be placed on the corresponding support parts 31 in sequence, thereby realizing the gradual reduction of the compensation force. After a second counterweight 80 is placed on the support part 31, the compensation force will reduce the weight of the second counterweight 80, thereby compensating for the reduction of gravity on the elevator car 10 side and the increase of gravity on the counterweight side. After the first counterweight 70 is placed on the support part 31, no counterweight applies the compensation force.

[0035] It should be noted that the weight on the elevator car 10 side equals the weight of the elevator car 10 plus the weight of the portion of the connecting member 11 located between the fixed pulley 12 and the elevator car 10. The weight on the counterweight side equals the weight of the counterweight frame 20 plus the weight of the portion of the connecting member 11 located between the fixed pulley 12 and the counterweight frame 20. The weight of the portion of the connecting member 11 located between the fixed pulley 12 and the elevator car 10, and the weight of the portion of the connecting member 11 located between the fixed pulley 12 and the counterweight frame 20, changes with the movement of the connecting member 11, causing an imbalance between the weight on the elevator car 10 side and the counterweight side. Therefore, a compensating force is applied to the counterweight frame 20 through a segmented compensation mechanism, so that the weight on the counterweight side equals the weight of the counterweight frame 20 plus the weight of the portion of the connecting member 11 located between the fixed pulley 12 and the counterweight frame 20 plus the compensating force. This compensating force helps maintain the weight difference between the elevator car 10 side and the counterweight side within a reasonable range. It should be noted that the increase or decrease of the compensating force is to compensate for the changes in gravity on the elevator car 10 side and the counterweight side caused by the descent or ascent of the elevator car 10. The changes in gravity on the counterweight side and the elevator car 10 side caused by the movement of the connecting member 11 are smooth, while the change in the compensating force instantaneously increases the gravity of either the first counterweight 70 or the second counterweight 80. For example, during the descent of the elevator car 10, from the moment the first counterweight 70 detaches from the support 31 to the moment the lowest second counterweight 80 detaches from the support 31, the movement of the connecting member 11 still causes changes in gravity on the counterweight side and the elevator car 10 side, but the compensating force remains approximately unchanged. However, since the gravity of the first counterweight 70 or the second counterweight 80 is relatively small compared to the elevator car 10, even if the compensating force cannot completely balance the changes in gravity on the counterweight side and the elevator car 10 side, it can still keep the gravity on the counterweight side and the elevator car 10 side within a reasonable range, thus making the elevator operation more stable.

[0036] When the elevator car 10 rises, the rope winding device 50 actively winds up the transmission chain 60, thus keeping the transmission chain 60 taut. When the elevator car 10 descends, the rope winding device 50 can actively unwind the transmission chain 60, or it can use the rise of the counterweight frame 20 to drive the transmission chain 60 to unwind from the rope winding device 50, thus achieving passive unwinding of the rope winding device 50. The structure and principle of the rope winding device 50 are well known to those skilled in the art and will not be described in detail here.

[0037] It should be noted that connector 11 is usually a steel wire rope, but this example is not the only one.

[0038] In some alternative embodiments, the second counterweight 80 is provided with a movable hole 81. The connecting rope 90 passes through the movable hole 81 of the second counterweight 80 from bottom to top. When the connecting rope 90 is wound by the anti-rope pulley 40, the connecting rope 90 will move relative to the movable hole 81. After the connecting rope 90 pulls the first counterweight 70 to rise, the first counterweight 70 can abut against the bottom of the second counterweight 80 located at the bottommost. Then the connecting rope 90 drives the second counterweight 80 located at the bottommost to rise through the first counterweight 70. Subsequently, the first counterweight 70 and the second counterweight 80 located at the bottommost continue to rise. Then the second counterweight 80 located at the bottommost will abut against the bottom of the second second counterweight 80 counted from the bottom. Subsequently, the connecting rope 90 drives the second second counterweight 80 counted from the bottommost to rise through the first counterweight 70 and the second counterweight 80 located at the bottommost. And so on. This design makes it convenient for the connecting rope 90 to drive each counterweight to rise sequentially to disengage from the support part 31.

[0039] Please see Figure 6In some optional embodiments, the anti-cord pulley 40 is provided with a first winding pulley portion 42 and a second winding pulley portion 43. A plurality of transmission teeth 41 are arranged around the rotation axis of the first winding pulley portion 42. The connecting rope 90 is connected to the second winding pulley portion. The second winding pulley portion 43 is used to wind up the connecting rope 90. The transmission teeth 41 on the first winding pulley portion 42 drive the transmission chain 60 to move, while the second winding pulley portion 43 winds up the connecting rope 90 accordingly, thereby avoiding mutual interference and entanglement between the transmission chain 60 and the connecting rope 90.

[0040] In some alternative implementations, the segmented compensation mechanism of the elevator counterweight device includes two connecting ropes 90, both of which are connected to the first counterweight 70 and to the anti-roll wheel 40. The two connecting ropes 90 improve the posture stability of the first counterweight 70 and prevent the anti-roll wheel 40 from becoming unbalanced due to the tilting of the first counterweight 70.

[0041] In some alternative embodiments, the deflector 40 is provided with two second take-up reels 43, and two connecting ropes 90 are connected to the second take-up reels 43 respectively. The two second take-up reels 43 respectively wind up the connecting ropes 90, thereby avoiding mutual interference between the two connecting ropes 90. In this embodiment, the first take-up reel 42 is located between the two second take-up reels 43, thereby improving the stress stability of the deflector 40.

[0042] To prevent the connecting rope 90 from getting tangled in the drive chain 60, in some optional embodiments, a blocking portion 44 is provided between the first take-up reel 42 and the second take-up reel 43, preventing the connecting rope 90 from reaching the first take-up reel 42. In other optional embodiments, the diameter of the first take-up reel 42 is larger than the diameter of the second take-up reel 43, forming a step portion 45 between the first take-up reel 42 and the second take-up reel 43. The step portion 45 blocks the connecting rope 90, preventing it from reaching the first take-up reel 42. In this embodiment, a blocking portion 44 is provided between the first take-up reel 42 and the second take-up reel 43, and a step portion 45 is formed between the first take-up reel 42 and the second take-up reel 43. The blocking portion 44 is located at the edge of the step portion 45, thereby effectively preventing the connecting rope 90 and the drive chain 60 from interfering with each other.

[0043] In some optional embodiments, the plurality of support portions 31 are respectively a first support portion 32 and a plurality of second support portions 33, the first support portion 32 and the plurality of second support portions 33 are arranged sequentially from bottom to top, a first counterweight 70 is placed on the first support portion 32, and a second counterweight 80 is placed on the second support portion 33, and a clearance space 34 is formed on the second support portion 33; wherein, When there is one second support 33 and one second counterweight 80, the size of the clearance space 34 is larger than the size of the first counterweight 70, so that the first counterweight 70 can pass through the clearance space 34. When the number of the second support part 33 and the second counterweight 80 is not less than two, the clearance spaces 34 decrease in size from top to bottom. The size of the clearance space 34 of the second support part 33 is larger than the size of the second counterweight 80 supported by the adjacent lower second support part 33, so that the second counterweight 80 supported by the adjacent lower second support part 33 can pass through the clearance space 34 of the adjacent upper second support part 33. The size of the clearance space 34 of the lowermost second support part 33 is larger than the size of the first counterweight 70, so that the first counterweight 70 can pass through the clearance space 34 of the lowermost second support part 33.

[0044] In this embodiment, we will take an example where there are three second support parts 33 and three second counterweights 80. Since the connecting rope 90 drives the second counterweight 80 to rise through the first counterweight 70, and the second counterweight 80 located below drives the second counterweight 80 located above, the first counterweight 70 and the second counterweight 80 are kept as much as possible on the same vertical line to ensure that the force is balanced among the counterweights. In order to prevent the second support part 33 located above from blocking the movement of the first counterweight 70 or the second counterweight 80 located below, the design of increasing the clearance space 34 and adjusting the size of each clearance space 34 are used so that the first counterweight 70 can smoothly pass through each clearance space 34 to reach the first support part 32, and the second counterweight 80 can also pass through the corresponding clearance space 34 to reach the corresponding second support part 33.

[0045] To facilitate the formation of the clearance space 34, in some optional embodiments, the second support portion 33 includes two support members 35, which are disposed opposite to each other on the fixed base. The clearance space 34 is formed between the two support members 35, which cooperate to support the second counterweight 80. The two support members 35 cooperate to support the bottom of the second counterweight 80 near both sides of the second counterweight 80, thereby achieving stable support for the second counterweight 80. Although the first support portion 32 does not need to be designed with the clearance space 34, it can also adopt a design similar to that of the second support portion 33, or other suitable structures can be used, and it is not limited to this example.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A segmented compensation mechanism for an elevator counterweight device, characterized in that, include: A fixed base, wherein multiple support parts are arranged sequentially from top to bottom; A reverse rope wheel is rotatably mounted on the fixed base. The reverse rope wheel is provided with multiple transmission teeth, which are arranged around the rotation axis of the reverse rope wheel. A rope winding device, wherein the rope winding device is mounted on the fixed base; The transmission chain, the rope winding device is driven to the transmission chain, the end of the transmission chain passes around the anti-rope pulley and is then used to connect to the counterweight frame of the elevator, the transmission chain meshes with the transmission teeth, and the movement of the transmission chain will drive the anti-rope pulley to rotate; A first counterweight and several second counterweights are arranged sequentially from bottom to top on several support portions, and the first counterweight and several second counterweights are all located below the anti-rope pulley. A connecting rope, which is connected to the first counterweight and to the anti-rope pulley; When the transmission chain is unwound from the rope winding device, the transmission chain drives the anti-rope wheel to rotate in the first preset direction. The anti-rope wheel winds up the connecting rope, and the connecting rope sequentially drives the first counterweight and several second counterweights to rise from bottom to top, causing the first counterweight and several second counterweights to disengage from the corresponding support portion. When the rope winding device winds up the transmission chain, the transmission chain drives the anti-rope wheel to rotate in a second preset direction. The first preset direction and the second preset direction are opposite. The anti-rope wheel unwinds the connecting rope. The connecting rope drives a number of second counterweights and first counterweights to descend from top to bottom, so that the number of second counterweights and first counterweights are placed on the corresponding support parts in sequence.

2. The segmented compensation mechanism for an elevator counterweight device according to claim 1, characterized in that: The second counterweight is provided with a movable hole, and the connecting rope passes through the movable hole of the second counterweight sequentially from bottom to top.

3. The segmented compensation mechanism for an elevator counterweight device according to claim 1, characterized in that: The anti-cord pulley is provided with a first winding pulley and a second winding pulley. A plurality of the transmission teeth are arranged around the rotation axis of the first winding pulley. The connecting rope is connected to the second winding pulley, and the second winding pulley is used to wind up the connecting rope.

4. The segmented compensation mechanism for an elevator counterweight device according to claim 1, characterized in that, It includes two connecting ropes, both of which are connected to the first counterweight and to the anti-cord pulley.

5. The segmented compensation mechanism for an elevator counterweight device according to claim 3, characterized in that, It includes two connecting ropes, both of which are connected to the first counterweight. The anti-cord pulley is provided with two second winding pulleys, and the two connecting ropes are connected to the second winding pulleys respectively.

6. A segmented compensation mechanism for an elevator counterweight device according to claim 3 or 5, characterized in that: A barrier is provided between the first take-up reel and the second take-up reel; and / or, The diameter of the first take-up roller is larger than the diameter of the second take-up roller, and a step is formed between the first take-up roller and the second take-up roller.

7. A segmented compensation mechanism for an elevator counterweight device according to any one of claims 1 to 6, characterized in that: The plurality of support portions are defined as a first support portion and a plurality of second support portions, arranged sequentially from bottom to top. A first counterweight is placed on the first support portion, and a second counterweight is placed on the second support portion. A clearance space is formed on the second support portion. When there is one of each of the second support and the second counterweight, the size of the clearance space is larger than the size of the first counterweight, so that the first counterweight can pass through the clearance space. When the number of the second support and the second counterweight is not less than two, the clearance spaces decrease sequentially from top to bottom. The size of the clearance space of the second support is larger than the size of the second counterweight supported by the adjacent lower second support, so that the second counterweight supported by the adjacent lower second support can pass through the clearance space of the adjacent upper second support. The size of the clearance space of the lowermost second support is larger than the size of the first counterweight, so that the first counterweight can pass through the clearance space of the lowermost second support.

8. The segmented compensation mechanism for an elevator counterweight device according to claim 7, characterized in that: The second support includes two support members, which are disposed opposite to each other on the fixed base. The clearance space is formed between the two support members, and the two support members cooperate to support the second counterweight.

9. A counterweight device for an elevator, characterized in that, include: The counterweight frame and the segmented compensation mechanism of an elevator counterweight device as described in any one of claims 1 to 8, wherein the end of the transmission chain is connected to the counterweight frame.

10. An elevator device, characterized in that, include: The elevator car, the connector, the fixed pulley, and the elevator counterweight device as described in claim 9, wherein the elevator car is connected to the counterweight frame of the elevator counterweight device via the connector, and the connector passes around the fixed pulley.

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