Curtain and bearing rope winding and unwinding device thereof

Abstract

The embodiment of the invention provides a curtain and a bearing rope winding and unwinding device thereof. The device comprises a base provided with a rope outlet; the rope winding wheel is pivoted on the base and is provided with at least two rope winding grooves; the rope guide mechanism is arranged on the base; one end of each bearing rope is wound in the corresponding rope winding groove in the same direction, and the other opposite end of each bearing rope extends out of the rope outlet under the guide of the rope guide mechanism after being led out of the rope winding groove; the rope guide mechanism comprises a synchronous guide assembly, and the synchronous guide assembly comprises a mandrel arranged beside the rope winding wheel in parallel with the rope winding wheel; the core shaft is sleeved with the sliding sleeve in an axial sliding mode, at least two annular guide grooves are formed in the outer side face of the sliding sleeve, the width of the groove bottom of each annular guide groove is matched with the diameter of the corresponding bearing rope, and the center distance between any two adjacent annular guide grooves is equal to the distance between the leading-out positions of the bearing ropes in any two adjacent rope winding grooves. The embodiment can ensure that the two ends of the curtain body of the curtain synchronously ascend and descend.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of curtain accessories, and in particular to a curtain and a bearing rope transceiver thereof. Background Art

[0002] At present, the existing curtains usually include an upper beam, a load-bearing rope retracting device assembled on the upper beam, and a curtain body arranged below the upper beam, wherein the rope winding device includes a base, a rope winding wheel pivotally arranged on the base, a load-bearing rope wound around the rope winding wheel at the top end and connected to the curtain body at the bottom end, and a power mechanism for driving the rope winding wheel to rotate. Usually, the curtain body is symmetrically connected to at least two load-bearing ropes in the width direction thereof to carry the curtain body so that the curtain body is subjected to balanced force and ensures that the curtain body is lifted and lowered in a balanced manner without being skewed.

[0003] To this end, a rope winding wheel of an existing curtain load-bearing rope transceiver device usually has at least two rope winding grooves arranged side by side axially on the outer side, and a load-bearing rope is correspondingly wound in each rope winding groove. After winding through the corresponding guide rod, each load-bearing rope led out from each rope winding groove of the rope winding wheel passes through the upper beam downward from the corresponding position on the upper beam and is then symmetrically connected to the curtain body.

[0004] However, the inventor discovered during the specific implementation that when the rope winding wheel reels in the load-bearing ropes, the winding position of each load-bearing rope in the corresponding rope winding groove moves circle by circle in the axial direction of the rope winding wheel, and the contact point of the load-bearing rope on the guide rod also undergoes axial changes. However, since there is no structure on the guide rod to guide the axial movement of the load-bearing ropes, it is difficult to keep the axial movement of each load-bearing rope on the guide rod synchronous, and it is easy to make the winding lengths of each load-bearing rope on the rope winding wheel inconsistent, which will correspondingly lead to inconsistent released lengths of each load-bearing rope when releasing the load-bearing rope from the rope winding wheel. It can be seen that the existing load-bearing rope taking-up and releasing device cannot ensure the synchronization of the taking-up and releasing of each load-bearing rope, and it is easy to cause the curtain body of the curtain to be skewed with one end higher than the other end when it is raised or lowered. Summary of the invention

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a curtain bearing rope retracting and releasing device, which can ensure that both ends of the curtain body of the curtain are raised and lowered synchronously.

[0006] The technical problem to be solved by the embodiments of the present invention is to provide a curtain that can ensure that both ends of the curtain body are raised and lowered synchronously.

[0007] In order to solve the above technical problems, the embodiment of the present invention provides the following technical solutions: a carrying rope retracting device for a curtain, comprising: A base having a rope outlet at a predetermined position; A rope winding wheel pivotally mounted on the base and having at least two rope winding grooves arranged side by side along the axial direction on the outer wheel surface; A rope guiding mechanism disposed on the base and between the rope winding wheel and the rope outlet; and At least two load-bearing ropes are arranged one-to-one with the rope winding grooves, one end of each load-bearing rope is respectively wound in the corresponding rope winding groove in the same direction, and the other end is led out of the rope winding groove and then extends out of the rope outlet under the guidance of the rope guide mechanism; The guide rope mechanism comprises a synchronous guide assembly, and the synchronous guide assembly comprises: a mandrel arranged parallel to the rope winding wheel and beside the rope winding wheel; and A sliding sleeve can be axially slidably sleeved on the core shaft, and the outer side surface of the sliding sleeve is provided with at least two annular guide grooves which are arranged one-to-one with the rope winding grooves and are distributed side by side in the axial direction, the groove bottom width of the annular guide groove is adapted to the diameter of the load-bearing rope, and the center distance between any two adjacent annular guide grooves is the same as the spacing between the lead-out positions of the load-bearing rope in any two adjacent rope winding grooves.

[0008] Furthermore, the synchronous guide components are provided with at least two and are arranged parallel to each other at corresponding corners of the base. The load-bearing rope led out from the rope winding wheel passes through each of the synchronous guide components in sequence and then extends toward the rope outlet. The rope winding wheel is provided at one end of the base and is located as a whole on the inner side of the travel path of the load-bearing rope between each of the synchronous guide components in sequence.

[0009] Furthermore, the rope guiding mechanism also includes a plurality of guide rods having a smooth outer surface, which are arranged between the synchronous guide assembly and the rope outlet. The guide rods are parallel to the core axis. After the load-bearing rope extends out from the synchronous guide assembly, it passes through the outer surface of each of the guide rods in sequence and then extends out from the rope outlet.

[0010] Furthermore, the cross section of the annular guide groove is V-shaped or U-shaped.

[0011] Furthermore, the rope outlet is arranged at one end of the base away from the rope winding wheel, and a guide rod is arranged on the inner side of the rope outlet. A dividing rod is also assembled in the rope outlet, and the dividing rod divides the rope outlet into a plurality of channels in the axial direction of the guide rod, the number of which is the same as the number of the carrying ropes, and each of the carrying ropes extends out from the channel one by one.

[0012] Furthermore, a rope outlet is provided at each of the two opposite ends of the base.

[0013] Furthermore, the base includes a bottom shell and a shell cover which are interlocked to form an installation space for accommodating the rope winding wheel and the rope guiding mechanism, and the rope outlet is arranged on the bottom shell.

[0014] Furthermore, the device also includes a planar scroll spring mechanism assembled in the installation space for driving the rope winding wheel to rotate and wind up the load-bearing rope, a driving gear is coaxially arranged on the output shaft of the planar scroll spring mechanism, and a driven gear is coaxially arranged on the rope winding wheel, and the driving gear and the driven gear are meshed with each other.

[0015] Furthermore, each of the rope winding grooves is provided with a fixing hole for fixing the end of the load-bearing rope, and the fixing holes provided in each rope winding groove are arranged in a straight line with equal spacing in the axial direction of the rope winding wheel, and the hole spacing between any two adjacent fixing holes is the same as the center distance between any two adjacent annular guide grooves.

[0016] On the other hand, in order to solve the above-mentioned further technical problems, an embodiment of the present invention provides the following technical solutions: a curtain, comprising: an upper beam, a load-bearing rope taking-up and releasing device assembled on the upper beam, and a curtain body arranged below the upper beam and connected to the load-bearing rope of the load-bearing rope taking-up and releasing device and rising accordingly under the drive of the load-bearing rope taking-up and releasing device, wherein the load-bearing rope taking-up and releasing device is the load-bearing rope taking-up and releasing device described in any one of the above items.

[0017] After adopting the above technical scheme, the embodiment of the present invention has at least the following beneficial effects: the embodiment of the present invention adds a synchronous guide component on the side of the rope winding wheel, and the synchronous guide component includes a core shaft and a sliding sleeve slidably mounted on the core shaft, and the outer side surface of the sliding sleeve is provided with annular guide grooves which are arranged one by one in correspondence with the rope winding grooves and are distributed side by side in the axial direction for corresponding winding of each load-bearing rope, and the groove bottom width of the annular guide groove is designed to be compatible with the diameter of the load-bearing rope, which can effectively prevent the load-bearing rope from axially slipping in the corresponding annular guide groove and can only drive the sliding sleeve to slide axially. In the process of retracting and releasing the load-bearing rope, the load-bearing rope is retracted and released circle by circle in the rope winding groove along the axial direction of the rope winding wheel, and drives the sliding sleeve to slide axially on the core shaft synchronously, and, in combination with the design that the center distance between any two adjacent annular guide grooves is the same as the spacing between the lead-out positions of the load-bearing ropes in any two adjacent rope winding grooves, the retracted and released lengths of each load-bearing rope are always consistent, and it can ensure that the curtain body connected to the other end of each load-bearing rope can always be lifted and lowered in a balanced manner without being skewed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the disassembled structure of an optional embodiment of the bearing rope retracting and releasing device for the curtain of the present invention.

[0019] Figure 2 This is a schematic diagram of the disassembled structure from another angle of an optional embodiment of the curtain carrying rope retracting and releasing device of the present invention.

[0020] Figure 3 The figure is a schematic diagram of the assembly structure of an optional embodiment of the bearing rope retracting and releasing device for the curtain of the present invention.

[0021] Figure 4 The present invention is a schematic cross-sectional structure diagram of an optional embodiment of the bearing rope retracting and releasing device for the curtain of the present invention along the plane where the central axes of the core shaft and the rope winding wheel are located.

[0022] Figure 5 The present invention is a schematic diagram of the cross-sectional structure of an optional embodiment of the curtain bearing cord retracting and releasing device of the present invention along the mid-axis plane of the shell length.

[0023] Figure 6 The present invention is a schematic cross-sectional structure diagram of an optional embodiment of the bearing rope retracting and releasing device of the curtain of the present invention along the mid-axis plane of the length of the dividing rod.

[0024] Figure 7 This is a schematic diagram of the split structure of an optional embodiment of the curtain of the present invention.

[0025] Figure 8 This is a schematic diagram of the assembly structure of an optional embodiment of the curtain of the present invention. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. In addition, the embodiments and features in the embodiments of the present application may be combined with each other without conflict.

[0027] like Figure 1-Figure 6 As shown, an optional embodiment of the present invention provides a curtain carrying rope retracting device 1, comprising: A base 10 having a rope outlet 101 at a predetermined position; A rope winding wheel 12 pivotally mounted on the base 10 and having at least two rope winding grooves 121 arranged side by side along the axial direction on the outer wheel surface; A rope guiding mechanism 14 disposed on the base 10 and between the rope winding wheel 12 and the rope outlet 101; and At least two carrying ropes 16 are arranged one-to-one corresponding to the rope winding grooves 121, one end of each carrying rope 16 is respectively wound in the corresponding rope winding groove 121 in the same direction, and the other end is led out of the rope winding groove 121 and then extends out of the rope outlet 101 under the guidance of the rope guide mechanism 14; The guide rope mechanism 14 includes a synchronous guide assembly 141, and the synchronous guide assembly 141 includes: A core shaft 141a is arranged parallel to the rope winding wheel 12 and beside the rope winding wheel 12; and A sliding sleeve 141b can be axially slidably sleeved on the core shaft 141a, and the outer side surface of the sliding sleeve 141b is provided with at least two annular guide grooves 1410 which are arranged one-to-one with the rope winding grooves 121 and are distributed side by side in the axial direction, and the groove bottom width of the annular guide grooves 1410 is adapted to the diameter of the load-bearing rope 16, and the center distance between any two adjacent annular guide grooves 1410 is the same as the spacing between the lead-out positions of the load-bearing rope 16 in any two adjacent rope winding grooves 121.

[0028] In the embodiment of the present invention, a synchronous guide assembly 141 is added to the side of the rope winding wheel 12, and the synchronous guide assembly 141 includes a core shaft 141a and a sliding sleeve 141b slidably sleeved on the core shaft 141a, and the outer side of the sliding sleeve 141b is provided with an annular guide groove 1410 corresponding to the rope winding groove 121 and arranged side by side in the axial direction for each load-bearing rope 16 to be wound accordingly, and the groove bottom width of the annular guide groove 1410 is designed to be compatible with the diameter of the load-bearing rope 16, which can effectively prevent the load-bearing rope 16 from axially sliding in the corresponding annular guide groove 1410 and can only drive the sliding sleeve 141b to move in the opposite direction. The sleeve 141b slides axially. During the process of retracting and releasing the load-bearing rope 16, the load-bearing rope 16 is retracted and released circle by circle in the rope winding groove 121 along the axial direction of the rope winding wheel 12, and drives the sliding sleeve 141b to slide axially synchronously on the core shaft 141a. Moreover, the design that the center distance between any two adjacent annular guide grooves 1410 and the spacing between the lead-out positions of the load-bearing rope 16 in any two adjacent rope winding grooves 121 are the same makes it possible to keep the retracted and released lengths of each load-bearing rope 16 consistent at all times, thereby ensuring that the curtain body connected to the other end of each load-bearing rope 16 can always be lifted and lowered in a balanced manner without being skewed.

[0029] In a specific implementation, the number of the rope winding grooves 121 on the rope winding wheel 12 can be 2, 3 or even more, and a corresponding number of carrying ropes 16 can be assembled to adapt to curtains of different widths. Figure 1-Figure 6 In the illustrated embodiment, two rope winding grooves 121 are formed on the rope winding wheel 12 , and two carrying ropes 16 are correspondingly arranged thereon.

[0030] In an optional embodiment of the present invention, Figure 1 and Figure 6As shown, at least two synchronous guide components 141 are provided and are arranged in parallel at corresponding corners of the base 10. The carrying rope 16 drawn out from the rope winding wheel 12 passes through each of the synchronous guide components 141 in sequence and then extends toward the rope outlet 101. The rope winding wheel 12 is provided at one end of the base 10 and is located as a whole on the inner side of the travel path of the carrying rope 16 between each of the synchronous guide components 141 in sequence. In this embodiment, by respectively providing the synchronous guide components 141 at the corresponding corners of the base 10, the spacing between adjacent carrying ropes 16 can be effectively maintained unchanged at all locations on the moving path of the carrying rope 16, which is conducive to maintaining the same retracted and released length of each carrying rope 16.

[0031] In an optional embodiment of the present invention, Figure 1-Figure 3 and Figure 6 As shown, the rope guide mechanism 14 further includes a plurality of guide rods 143 with smooth outer surfaces, which are arranged in sequence along the moving path of the carrying rope 16 between the synchronous guide assembly 141 and the rope outlet 101. After the carrying rope 16 extends from the synchronous guide assembly 141, it passes through the outer surface of each guide rod 143 in sequence and then extends from the rope outlet 101. In this embodiment, a plurality of guide rods 143 with smooth outer surfaces are arranged between the synchronous guide assembly 141 and the rope outlet 101, and the guide rods 143 are used to gradually guide the moving path of the carrying rope 16, so as to avoid interference between the carrying rope 16 and other structures of the base 10 during the moving process.

[0032] In an optional embodiment of the present invention, the cross section of the annular guide groove 1410 is V-shaped or U-shaped ( Figure 4 In this embodiment, the cross section of the annular guide groove 1410 may be V-shaped or U-shaped, so as to effectively position the load-bearing rope 16 and prevent the load-bearing rope 16 from axially sliding in the annular guide groove 1410 and escaping from the annular guide groove 1410.

[0033] In an optional embodiment of the present invention, Figure 2 , Figure 5-Figure 6As shown, the rope outlet 101 is provided at one end of the base 10 away from the rope winding wheel 12, and a guide rod 143 is provided inside the rope outlet 101. A partition rod 103 is also assembled inside the rope outlet 10, and the partition rod 103 divides the rope outlet 101 into a plurality of channels 101a in the axial direction of the guide rod 143, the number of which is the same as the number of the carrying ropes 16, and each of the carrying ropes 16 extends out from the channels 101a one by one. In this embodiment, the guide rod 143 is provided inside the rope outlet 101 to facilitate the carrying rope 16 to change direction here, and the partition rod 103 is provided to divide the rope outlet 101 into multiple layers of channels 101a, so that each carrying rope 16 can extend out from different channels 101a respectively, thereby avoiding interference between each carrying rope 16 in the rope outlet 101.

[0034] In an optional embodiment of the present invention, a rope outlet 101 is provided at each of the opposite ends of the base 10. In this embodiment, rope outlets 101 are provided at both ends of the base 10, so that different load-bearing ropes 16 can be respectively extended from the opposite ends of the base 10 to the outside of the base 10 and then connected to the curtain body 5, and the load-bearing rope retracting device 1 can be conveniently assembled to the middle section of the upper beam 3 of the curtain. Moreover, when necessary, all the load-bearing ropes 16 can also be extended from the rope outlet 101 at one end of the base 10, and the load-bearing rope retracting device 1 is usually arranged at one end of the upper beam 3. It can be seen that this embodiment enriches the installation position of the load-bearing rope retracting device 1 on the upper beam 3, and can be flexibly selected and adjusted according to needs in actual application.

[0035] In an optional embodiment of the present invention, Figure 1-Figure 6 As shown, the base 10 includes a bottom shell 10a and a shell cover 10b that are buckled together to form an installation space 10c for accommodating the rope winding wheel 12 and the rope guiding mechanism 14, and the rope outlet 101 is provided on the bottom shell 10a. In this embodiment, the base 10 is buckled by the bottom shell 10a and the shell cover 10b to form an installation space 10c corresponding to accommodating the rope winding wheel 12 and the rope guiding mechanism 14, which can effectively protect the internal structure and achieve a protective effect.

[0036] In an optional embodiment of the present invention, Figure 1-Figure 6As shown, the device also includes a plane scroll spring mechanism 18 assembled in the installation space 10c for driving the rope winding wheel 12 to rotate and reel in the load-bearing rope 16, a driving gear 1810 is coaxially arranged on the output shaft 181 of the plane scroll spring mechanism 18, a driven gear 123 is coaxially arranged on the rope winding wheel 12, and the driving gear 1810 and the driven gear 123 are meshed with each other. This embodiment drives the rope winding wheel 12 by adopting the plane scroll spring mechanism 18, which is a relatively common power mechanism, specifically, the driving gear 1810 on the output shaft 181 of the plane scroll spring mechanism 18 is meshed with the driven gear 123 on the rope winding wheel 12 to achieve driving, and the structure is simple and the driving is stable.

[0037] In an optional embodiment of the present invention, Figure 1-Figure 5 As shown, each of the rope winding grooves 121 is provided with a fixing hole 125 for fixing the end of the carrying rope 16, and the fixing holes 125 arranged in each rope winding groove 121 are arranged in a straight line with equal spacing in the axial direction of the rope winding wheel 12, and the hole spacing between any two adjacent fixing holes 125 is the same as the center distance between any two adjacent annular guide grooves 1410. In this embodiment, by designing the fixing holes 125 for fixing the end of the carrying rope 16 arranged in each rope winding groove 121 to be arranged in a straight line with equal spacing in the axial direction of the rope winding wheel 12, and the hole spacing between any two adjacent fixing holes 125 is the same as the center distance between any two adjacent annular guide grooves 1410, the carrying rope 16 can be synchronously wound in the corresponding annular guide groove 1410, and the spacing between the lead-out positions of the carrying rope 16 in any two adjacent rope winding grooves 12 is the same as the center distance between any two adjacent annular guide grooves 1410, so that the length of each carrying rope 16 synchronously retracted and released is always consistent.

[0038] On the other hand, Figure 7-Figure 8 As shown, another embodiment of the present invention provides a curtain, comprising an upper beam 3, a load-bearing rope retracting device 1 assembled on the upper beam 3, and a curtain body 5 arranged below the upper beam 3 and connected to a load-bearing rope 16 of the load-bearing rope retracting device 1 and rising accordingly under the drive of the load-bearing rope retracting device 1, wherein the load-bearing rope retracting device 1 is the load-bearing rope retracting device 1 described in any of the above embodiments. The curtain provided in this embodiment can effectively achieve the smooth lifting and lowering of both ends of each curtain body 5 by adopting the load-bearing rope retracting device 1 of any of the above embodiments. Figure 7-Figure 8 In the embodiment, the curtain is a Venetian blind. It can be understood that the curtain can also be a Roman blind, a honeycomb blind, or other curtain product that uses a load-bearing rope to suspend and drive the curtain body 5 to rise and fall.

[0039] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, which all belong to the protection scope of the present invention.

Claims

1. A curtain carrying rope retracting and releasing device, comprising: A base having a rope outlet at a predetermined position; A rope winding wheel pivotally mounted on the base and having at least two rope winding grooves arranged side by side along the axial direction on the outer wheel surface; A rope guiding mechanism disposed on the base and between the rope winding wheel and the rope outlet; as well as At least two load-bearing ropes are arranged one-to-one with the rope winding grooves, one end of each load-bearing rope is respectively wound in the corresponding rope winding groove in the same direction, and the other end is led out of the rope winding groove and then extends out of the rope outlet under the guidance of the rope guide mechanism; It is characterized in that the guide rope mechanism includes a synchronous guide assembly, and the synchronous guide assembly includes: a mandrel arranged parallel to the rope winding wheel and beside the rope winding wheel; and A sliding sleeve can be axially slidably sleeved on the core shaft, and the outer side surface of the sliding sleeve is provided with at least two annular guide grooves which are arranged one-to-one with the rope winding grooves and are distributed side by side in the axial direction, the groove bottom width of the annular guide groove is adapted to the diameter of the load-bearing rope, and the center distance between any two adjacent annular guide grooves is the same as the spacing between the lead-out positions of the load-bearing rope in any two adjacent rope winding grooves.

2. The curtain carrying rope retracting device according to claim 1, characterized in that: The synchronous guide components are provided with at least two and are arranged parallel to each other at corresponding corners of the base. The load-bearing rope led out from the rope winding wheel passes through each of the synchronous guide components in turn and then extends toward the rope outlet. The rope winding wheel is arranged at one end of the base and is located as a whole on the inner side of the travel path of the load-bearing rope between each of the synchronous guide components in turn.

3. The curtain carrying rope retracting device according to claim 2, characterized in that: The rope guide mechanism also includes a plurality of guide rods having smooth outer surfaces which are arranged between the synchronous guide assembly and the rope outlet. The guide rods are parallel to the core shaft. After extending from the synchronous guide assembly, the load-bearing rope sequentially passes around the outer surfaces of each of the guide rods and then extends from the rope outlet.

4. The curtain carrying rope retracting device according to claim 1, characterized in that: The cross section of the annular guide groove is V-shaped or U-shaped.

5. The curtain carrying rope retracting device according to claim 3, characterized in that: The rope outlet is arranged at one end of the base away from the rope winding wheel, and a guide rod is arranged on the inner side of the rope outlet. A dividing rod is also assembled in the rope outlet, and the dividing rod divides the rope outlet into a plurality of channels in the axial direction of the guide rod, the number of which is the same as the number of the carrying ropes, and each of the carrying ropes extends out from the channel one by one.

6. The curtain carrying rope retracting device according to claim 3, characterized in that: The base is provided with a rope outlet at two opposite ends thereof.

7. The curtain carrying rope retracting device according to claim 1, characterized in that: The base comprises a bottom shell and a shell cover which are buckled together to form an installation space for accommodating the rope winding wheel and the rope guiding mechanism, and the rope outlet is arranged on the bottom shell.

8. The curtain carrying rope retracting device according to claim 7, characterized in that: The device also includes a planar scroll spring mechanism assembled in the installation space and used to drive the rope winding wheel to rotate and wind up the load-bearing rope. A driving gear is coaxially arranged on the output shaft of the planar scroll spring mechanism, and a driven gear is coaxially arranged on the rope winding wheel. The driving gear and the driven gear are meshed with each other.

9. The curtain carrying rope retracting and releasing device according to claim 1, characterized in that: A fixing hole for fixing the end of the load-bearing rope is provided in each of the rope winding grooves, and the fixing holes provided in each of the rope winding grooves are arranged in a straight line with equal spacing in the axial direction of the rope winding wheel, and the hole spacing between any two adjacent fixing holes is the same as the center distance between any two adjacent annular guide grooves.

10. A curtain comprising: An upper beam, a load-bearing rope taking-up and releasing device assembled on the upper beam, and a curtain body arranged below the upper beam and connected to the load-bearing rope of the load-bearing rope taking-up and releasing device and rising accordingly under the drive of the load-bearing rope taking-up and releasing device, characterized in that the load-bearing rope taking-up and releasing device is the load-bearing rope taking-up and releasing device according to any one of claims 1-9.

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