Flexible lifting device for rapid brushing and expanding of vertical shaft

Abstract

The utility model provides a flexible lifting device for rapid brushing and expanding of a vertical shaft, and belongs to the field of vertical shaft tunneling, and the flexible lifting device for rapid brushing and expanding of the vertical shaft comprises a suspension unit, a wall building unit, a flexible lifting unit and a brushing expanding unit which are sequentially connected from top to bottom; each wall building unit comprises a first large hanging scaffold and a second large hanging scaffold which are arranged up and down; the brush expanding unit comprises a first small hanging scaffold and a second small hanging scaffold which are arranged up and down; the diameter of the large section after the shaft is expanded and brushed, the diameters of the first large hanging scaffold and the second large hanging scaffold, the diameter of the small section before the shaft is expanded and brushed, and the diameters of the first small hanging scaffold and the second small hanging scaffold are sequentially reduced. The hanging unit and the flexible lifting unit cooperate to put the wall building unit and the brush expanding unit to the preset position of the vertical shaft, brush expanding and wall building operation is achieved through the brush expanding unit and the wall building unit, the alternating frequency of brush expanding and wall building is reduced, the working efficiency is improved, and the device is simple in structure, flexible and convenient to operate and suitable for popularization and application. Brushing expanding and wall building can be achieved at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shaft driving, in particular to a flexible lifting device for rapid brushing and expanding of a shaft. BACKGROUND

[0002] With the continuous expansion of production scale, the small-section shaft driven in the early stage cannot meet the production demand, and therefore it is necessary to brush and expand the small-section shaft in the early stage.

[0003] The shaft brushing and expanding usually uses a lifting platform to put workers into the shaft, the workers stand on the platform to first perform the brushing and expanding operation, and then perform the wall building operation on the depth of the brushing and expanding, and the brushing and expanding and the wall building operation are completed on the same platform. In order to facilitate the efficient and safe performance of the wall building operation, the diameter of the platform is usually greater than the diameter of the small-section area of the shaft and less than the diameter of the large-section area of the shaft after brushing and expanding, and therefore the platform can only be lifted in the large-section area and cannot enter the small-section area, which results in that the height of each brushing and expanding is limited, the brushing and expanding and the wall building operation are frequently alternated, the alternation process occupies a long time for worker handover, and the work efficiency is reduced. In addition, in the areas controlled by the blasting material, the blasting material is not provided at night, which causes the blasting operation and the wall building operation to be unable to be continuously performed, and only the blasting operation can be arranged in the daytime and the wall building and rock drilling can be arranged at night, further reducing the work efficiency. SUMMARY

[0004] In view of the technical problems in the background art, the present application provides a flexible lifting device for rapid brushing and expanding of a shaft, which has a simple structure, is flexible and convenient to operate, can realize long-section driving and building, can realize safe brushing and expanding and wall building at the same time, and improves the work efficiency.

[0005] In a first aspect, the present application provides a flexible lifting device for rapid brushing and expanding of a shaft, which comprises, from top to bottom, a suspension unit, a wall building unit, a flexible lifting unit and a brushing and expanding unit; the wall building unit comprises first and second large platforms arranged in a top-down manner; the brushing and expanding unit comprises first and second small platforms arranged in a top-down manner; the diameter of the large-section area of the shaft after brushing and expanding, the diameter of the first and second large platforms, the diameter of the small-section area of the shaft before brushing and expanding, and the diameter of the first and second small platforms decrease in turn.

[0006] In the technical scheme of the present application, the wall building unit and the brushing and expanding unit are placed at the preset position of the shaft by the cooperation of the suspension unit and the flexible lifting unit, the brushing and expanding and the wall building operation are respectively realized by the brushing and expanding unit and the wall building unit, the height of each brushing and expanding is 5-40 m, the alternating frequency of the brushing and expanding and the wall building operation is reduced, and the work efficiency is improved.

[0007] In some embodiments, the first small platform and the second small platform are connected by a second vertical column arranged between the first small platform and the second small platform.

[0008] In this embodiment, the first small platform and the second small platform are fixed by the second vertical column, thereby providing a stable working platform for the workers; meanwhile, the second small platform is fixed below the first small platform, thereby improving the safety of the wall-expanding operation.

[0009] In some embodiments, a second up-and-down assembly is arranged between the first small platform and the second small platform; the second up-and-down assembly is a second steel ladder arranged between the first small platform and the second small platform, or the second up-and-down assembly is a second ladder platform arranged on the second vertical column.

[0010] In this embodiment, the second up-and-down assembly facilitates the workers to enter the second small platform from the first small platform and perform wall-expanding operations at different positions on the first small platform and the second small platform.

[0011] In some embodiments, the first small platform is provided with a T-shaped second support rod rotatably connected to the first small platform.

[0012] In this embodiment, the second support rod is arranged to make the first small platform firmly contact the original wellbore wall, thereby fixing the first small platform and improving the safety of the operation.

[0013] In some embodiments, the second small platform is provided with a hinge rotatably connected to the second small platform.

[0014] In this embodiment, the hinge is rotatably connected to the edge of the second small platform, thereby facilitating emergency operations, and the hinge can be freely folded, without affecting the diameter of the second small platform, thereby not affecting the wall-expanding operation.

[0015] In some embodiments, the wall-building unit further comprises a first vertical column arranged between the first large platform and the second large platform and used to connect the first large platform and the second large platform.

[0016] In this embodiment, the first vertical column is arranged to fix the first large platform and the second large platform, thereby providing a stable working platform for the workers; meanwhile, the second large platform is fixed below the first large platform, thereby improving the safety of the wall-building operation.

[0017] In some embodiments, a first up-and-down assembly is arranged between the first large platform and the second large platform; the first up-and-down assembly is a first steel ladder arranged between the first large platform and the second large platform, or the second up-and-down assembly is a first ladder platform arranged on the first vertical column.

[0018] In the embodiment, the first upper and lower assembly is arranged, so that the workers can enter the second large hanging tray from the first large hanging tray and perform wall building operations at different positions on the first large hanging tray and the second large hanging tray.

[0019] In some embodiments, the first large hanging tray edge is provided with a T-shaped first support rod rotatably connected with the first large hanging tray.

[0020] In the embodiment, the first large hanging tray is in firm contact with the formwork through the first support rod, so that the first large hanging tray is fixed, and a stable working platform is provided for the workers.

[0021] In some embodiments, the flexible connection unit comprises an electric winch and a second steel wire rope; the electric winch is arranged on the second large hanging tray, and one end of the second steel wire rope is connected with the electric winch and the other end is connected with the first small hanging tray.

[0022] In the embodiment, the second steel wire rope is freely unwound or wound by the electric winch, so that the positions of the first small hanging tray and the second small hanging tray in the vertical shaft can be freely adjusted, and the first small hanging tray and the second small hanging tray can be lifted for a long distance, which creates conditions for advanced wall building, so that long section excavation and building can be realized.

[0023] In some embodiments, the suspension unit is a first steel wire rope, one end of which is connected with the first large hanging tray and the other end is connected with a ground fixing system.

[0024] In the embodiment, the first steel wire rope is arranged, the wall building unit and the expansion brushing unit are fixed by connecting the first steel wire rope with the ground fixing system, and the distance of the first steel wire rope extending into the vertical shaft can be freely adjusted, so that the height of the wall building unit and the expansion brushing unit can be freely adjusted.

[0025] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following will specifically describe the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings used in the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

[0027] Figure 1Structure diagram of flexible lifting device for rapid brushing and expanding of shaft in the embodiment of the present application;

[0028] Figure 2 Top view of first large hanging plate in the embodiment of the present application;

[0029] Figure 3 Top view of first small hanging plate in the embodiment of the present application;

[0030] Legend: 100-flexible lifting device for rapid brushing and expanding of shaft; 1-suspension unit; 2-wall building unit; 3-brushing and expanding unit; 4-flexible lifting unit; 5- post-wall after wall building; 6-original shaft wall; 7-wall after brushing and expanding; 21-first large hanging plate; 22-second large hanging plate; 23-first vertical column; 24-first ladder stand; 25-first support rod; 26-first connecting seat; 31-first small hanging plate; 32-second small hanging plate; 33-second vertical column; 34-second steel ladder; 35-second support rod; 36-hinge; 37-second connecting seat; 41-electric winch; 42-second steel wire rope. DETAILED DESCRIPTION

[0031] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise specifically limited.

[0034] In this document, the reference to "embodiments" means that the specific features, structures or properties described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean that it refers to the same embodiment, nor is it independent or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] In the description of the embodiments of the present application, the positions or position relations indicated by the technical terms "upper", "lower", etc. are based on the positions or position relations shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0036] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connecting", "fixing", etc. should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] With the continuous expansion of production scale, the small cross section shafts excavated in the early stage need to be further expanded. The expansion of the shaft is usually carried out by using a lifting platform to put workers into the shaft, and then alternately expanding and walling. The current expansion and walling operations are completed on the same platform, which limits the height of expansion each time, and makes the expansion and walling operations frequently alternate, and the transfer time of workers is long, which reduces the work efficiency.

[0038] In order to solve the technical problems of limited expansion distance of the lifting platform and low work efficiency of expansion and walling, the present application provides a flexible lifting device for rapid expansion of shaft, wherein the walling unit and the expansion unit are placed at the preset position of the shaft by setting the suspension unit, the flexible lifting unit, the walling unit and the expansion unit, and then the walling unit and the expansion unit are expanded and walled by using the expansion unit and the walling unit, the expansion height of each time is 5-40m, so as to realize long section excavation and walling, reduce the alternating frequency of expansion and walling operation, reduce the transfer time of workers, improve the work efficiency, the application of this size platform construction scheme opens up a new way for shaft expansion construction, brings new experience that can be popularized, improves the labor productivity and construction speed, has high economic benefit, meets the safety regulations, and has certain safety benefit.

[0039] Please refer to Figure 1The flexible lifting device 100 provided by the application for rapid brushing of a shaft comprises, from top to bottom, a suspension unit 1, a wall building unit 2, a flexible lifting unit 4 and a brushing unit 3; the wall building unit 2 comprises a first large hanging plate 21 and a second large hanging plate 22 arranged in sequence; the brushing unit 3 comprises a first small hanging plate 31 and a second small hanging plate 32 arranged in sequence; the diameter of a large section of the shaft after brushing, the diameter of the first large hanging plate 21 and the second large hanging plate 22 (the diameters of the two are equal), the diameter of a small section of the shaft before brushing, and the diameter of the first small hanging plate 31 and the second small hanging plate 32 (the diameters of the two are equal) decrease in sequence. Specifically, when brushing and wall building are needed, the suspension unit 1 and the wall building unit 2 are fixed by a fixing device on the ground, the first small hanging plate 31 and the second small hanging plate 32 are first placed in the shaft, the staff first brushes the wall rock of the original shaft wall 6 at a certain height from the shaft mouth; after brushing is completed, the suspension unit 1 is fixed by the fixing device on the ground, the wall building unit 2 and the brushing unit 3 are placed in the shaft, the position of the brushing unit 3 is adjusted by the flexible lifting unit 4, the wall building unit 2 is ensured to be located in the large section area of the shaft where brushing is completed, the brushing unit 3 is ensured to be located in the small section area of the shaft to be brushed, the staff is placed on the wall building unit 2 by a lifting device (such as a lifting bucket), wall building is performed after the template is installed on the brushed wall 7; then the staff enters the brushing unit 3 to further brush downward; or the staff brushes on the brushing unit 3, while another staff brushes on the wall building unit 2.

[0040] In the embodiment of the present application, the wall building unit 2 and the underpaving unit 3 are hung in the shaft by the suspension unit 1, the underpaving unit 3 is hung below the wall building unit 2 by the flexible lifting unit 4 and the height of the underpaving unit 3 is reasonably adjusted, the wall building unit 2 and the underpaving unit 3 are placed at the preset position of the shaft by the cooperation of the suspension unit 1 and the flexible lifting unit 4, the underpaving and wall building operations are respectively realized by the underpaving unit 3 and the wall building unit 2, and the underpaving height of the present application is 5-40m, that is, the underpaving working surface is 5-40m ahead of the wall building operation, the short section excavation and building is changed into long section excavation and building, the alternating frequency of the underpaving and wall building operations is reduced, the handover time of the workers is reduced, the work efficiency is improved, the underpaving and wall building operations can be simultaneously performed, and the work efficiency is further improved; meanwhile, compared with the conventional short section excavation and building, the underpaving unit 3 provides more operation space for the workers, and the convenience and safety of the operation are improved. The diameters of the first small lifting platform 31 and the second small lifting platform 32 are set to be smaller than the diameter of the small section of the shaft before underpaving, so that the first small lifting platform 31 and the second small lifting platform 32 can be smoothly placed in the shaft for underpaving operation; the diameters of the first large lifting platform 21 and the second large lifting platform 22 are set to be between the diameters of the large section after underpaving and the small section before underpaving of the shaft, the diameters of the first large lifting platform 21 and the second large lifting platform 22 are large enough to meet the industry regulation that the safety gap between the large lifting platform and the wall 5 after wall building is not greater than 100mm, meanwhile, the underpaving operation is not affected, the first large lifting platform 21 and the second large lifting platform 22 can also avoid entering the small section area of the shaft, when the second large lifting platform 22 is located at the junction of the large section and the small section, the wall rock of the small section, that is, the original shaft wall 6 can support the second large lifting platform 22, and the safety of the device is improved. In addition, after the underpaving is completed and the formwork is fixed on the underpaved wall 7, the first small lifting platform 31 and the second small lifting platform 32 can be freely lifted, and the overall risk removal work is facilitated.

[0041] Further, in the embodiment of the present application, as shown in Figure 1 the underpaving unit 3 further comprises a second vertical column 33 arranged between the first small lifting platform 31 and the second small lifting platform 32 and used for connecting the first small lifting platform 31 and the second small lifting platform 32. Specifically, the second vertical column 33 is arranged at the edge-approaching positions of the first small lifting platform 31 and the second small lifting platform 32 and is fixedly connected with the first small lifting platform 31 and the second small lifting platform 32, and the number of the second vertical column 33 is set according to specific conditions.

[0042] In the embodiment, the first small platform 31 and the second small platform 32 are fixed by arranging the second column 33 between the first small platform 31 and the second small platform 32, so as to provide a stable working platform for the staff; meanwhile, the second small platform 32 is fixed below the first small platform 31, and when the staff stands on the second small platform 32 to perform the expansion brushing operation, the first small platform 31 above can block the falling objects, so as to improve the safety.

[0043] Further, in the embodiment of the present application, as shown in Figure 1 The second up-and-down assembly is a second steel ladder 34 arranged between the first small platform 31 and the second small platform 32, and the second steel ladder 34 is fixed with the first small platform 31 and the second small platform 32; or the second up-and-down assembly is a second ladder platform arranged on the second column 33, and the second ladder platform is arranged on at least one second column 33.

[0044] In the embodiment, the second up-and-down assembly is arranged, so as to facilitate the staff to enter the second small platform 32 from the first small platform 31 and perform the expansion brushing operation at different positions on the first small platform 31 and the second small platform 32. When the second up-and-down assembly is the second steel ladder 34, the second steel ladder 34 is fixed with the first small platform 31 and the second small platform 32, so as to improve the safety during the up-and-down process of the staff. When the second up-and-down assembly is the second ladder platform, the staff enters the second small platform 32 along the second ladder platform, which is safe and convenient.

[0045] Further, in the embodiment of the present application, as shown in Figure 3As shown, the first small platform 31 is provided with a T-shaped second support rod 35 rotatably connected with the first small platform 31. Specifically, the first small platform 31 is provided with a second connecting seat 37, and the second support rod 35 is connected with the second connecting seat 37 through a bearing, so that the second support rod 35 can rotate around the second connecting seat 37. The number of the second support rod 35 is set according to specific conditions. When the first small platform 31 is moved to a preset position, the second support rod 35 is rotated to abut against and firmly contact the original shaft well wall 6 or the expanded brush well wall 7 (the rotation angle of the second support rod 35, i.e., the included angle between the second support rod 35 and the first small platform 31, depends on the distance between the first small platform 31 and the original shaft well wall 6 or the expanded brush well wall 7), and then workers drill a blast hole and place explosives in the blast hole, which facilitates subsequent blasting operations or danger removal operations. If the diameter of the original shaft is small, so that the distance between the first small platform 31 and the second small platform 32 and the original shaft well wall 6 is small, the unsafe factors caused by the shaking of the first small platform 31 and the second small platform 32 can be basically ignored, and thus the second support rod 35 does not need to abut against the original shaft well wall 6, but only needs to contact the first small platform 31.

[0046] In this embodiment, the second support rod 35 is arranged to firmly contact the first small platform 31 with the original shaft well wall 6 or the expanded brush well wall 7, fix the first small platform 31, and then fix the second small platform 32, so as to facilitate workers to perform danger removal and rock drilling and blasting operations on the first small platform 31 and the second small platform 32.

[0047] Further, in the embodiment of the present application, in order to further improve the tightness of the contact between the second support rod 35 and the original shaft well wall 6 or the expanded brush well wall 7, a rotating screw is arranged at one end of the second support rod 35 in contact with the original shaft well wall 6 or the expanded brush well wall 7. When the second support rod 35 is rotated into position and abuts against the original shaft well wall 6 or the expanded brush well wall 7, the length of the second support rod 35 is adjusted through the rotating screw, so that the second support rod 35 tightly contacts the original shaft well wall 6 or the expanded brush well wall 7, and the safety is improved. Meanwhile, the contact stability and safety of the second support rod 35 and the original shaft well wall 6 or the expanded brush well wall 7 can be further improved by symmetrically arranging multiple second support rods 35.

[0048] Further, in the embodiment of the present application, as shown in FIG. 4, the second support rod 35 is provided with a plurality of second connecting seats 37, and the second support rod 35 is rotatably connected with the second connecting seat 37 through a bearing. The second support rod 35 can rotate around the second connecting seat 37, and the number of the second support rod 35 is set according to specific conditions. Figure 1As shown, the edge of the second small platform 32 is provided with a hinge 36 rotatably connected with the second small platform 32. In particular, when the workers need to handle the floating stone on the expanded wall 7 in an emergency, the second small platform 32 can be lowered to the joint of the expanded wall 7 and the original wall 6, and the hinge 36 is rotated to be flush with the second small platform 32, at this time, the second support rod 35 abuts against the expanded wall 7, and the workers can approach the expanded wall 7 to perform emergency operations such as danger elimination, and after the operation is completed, the workers return to the second small platform 32, and the hinge 36 is retracted.

[0049] In this embodiment, the hinge 36 is rotatably connected with the edge of the second small platform 32, which facilitates emergency operations, and the hinge 36 can be freely retracted without affecting the diameter of the second small platform 32, thereby not affecting the expansion operation.

[0050] Further, in the embodiment of the present application, as shown in Figure 1 The wall building unit 2 further comprises a first column 23 arranged between the first large platform 21 and the second large platform 22 and used for connecting the first large platform 21 and the second large platform 22. Specifically, the first column 23 is arranged at the edge of the first large platform 21 and the second large platform 22 and is fixedly connected with the first large platform 21 and the second large platform 22, and the number of the first column 23 is arranged according to the specific situation.

[0051] In this embodiment, the first column 23 is arranged between the first large platform 21 and the second large platform 22, which can fix the first large platform 21 and the second large platform 22 and provide a stable working platform for the workers; at the same time, the second large platform 22 is fixed below the first large platform 21, and when the workers stand on the second large platform 22 to perform the wall building operation, the first large platform 21 above can block the falling objects and improve the safety.

[0052] Further, in the embodiment of the present application, as shown in Figure 1 The first large platform 21 and the second large platform 22 are provided with a first up-down assembly; the first up-down assembly is a first steel ladder arranged between the first large platform 21 and the second large platform 22, and the first steel ladder is fixed with the first large platform 21 and the second large platform 22; or the first up-down assembly is a first ladder platform 24 arranged on the first column 23, and the first ladder platform 24 is arranged on at least one first column 23.

[0053] In the embodiment, the first up-down assembly is arranged, so as to facilitate the workers to enter the second large hanging disc 22 from the first large hanging disc 21 and to carry out wall building work at different positions on the first large hanging disc 21 and the second large hanging disc 22. When the first up-down assembly is the first steel ladder, the first steel ladder is fixed by being fixed with the first large hanging disc 21 and the second large hanging disc 22, so as to improve the safety of the workers in the process of going up and down. When the first up-down assembly is the first ladder platform 24, the workers enter the second large hanging disc 22 along the first ladder platform 24, which is safe and convenient.

[0054] Further, in the embodiment of the present application, as shown in Figure 2 Specifically, the first large hanging disc 21 is provided with a first connecting seat 26, and the first supporting rod 25 is connected with the first connecting seat 26 through a bearing, so that the first supporting rod 25 can rotate around the first connecting seat 26. The number of the first supporting rod 25 is arranged according to specific conditions. When the first large hanging disc 21 is moved to a preset position, the first supporting rod 25 is rotated and abuts against the formwork and firmly contacts with the formwork (the rotation angle of the first supporting rod 25, i.e. the included angle between the first supporting rod 25 and the first large hanging disc 21, depends on the distance between the first supporting rod 25 and the formwork), and then the workers carry out wall building work.

[0055] In the embodiment, the first supporting rod 25 is arranged, so that the first large hanging disc 21 firmly contacts with the formwork, the first large hanging disc 21 is fixed, and then the second large hanging disc 22 is fixed, thereby facilitating the workers to carry out wall building work on the first large hanging disc 21 and the second large hanging disc 22.

[0056] Further, in the embodiment of the present application, in order to further improve the tightness of the contact between the first supporting rod 25 and the formwork, a rotating screw is arranged at one end of the first supporting rod 25 in contact with the formwork. After the first supporting rod 25 is rotated into position, when the first supporting rod 25 abuts against the formwork, the length of the first supporting rod 25 is adjusted through the rotating screw, so as to make the first supporting rod 25 tightly contact with the formwork and improve the safety. At the same time, the contact stability and safety of the first supporting rod 25 and the formwork can be further improved by symmetrically arranging a plurality of first supporting rods 25.

[0057] Further, in the embodiment of the present application, as shown in Figure 1As shown, the flexible connecting unit 4 includes an electric winch 41 and a second steel wire rope 42; the electric winch 41 is arranged on the second large hanging plate 22, one end of the second steel wire rope 42 is connected with the electric winch 41, and the other end is connected with the first small hanging plate 31. Specifically, the second steel wire rope 42 can bear the weight of the expanding brush unit 3 and the workers. The electric winch 41 works to rotate and unfold the second steel wire rope 42, so that the first small hanging plate 31 and the second small hanging plate 32 are lowered to a preset height, and then the workers perform the expanding brush work.

[0058] In this embodiment, by arranging the electric winch 41 and the second steel wire rope 42, the second steel wire rope 42 is unfolded or wound by the electric winch 41, so as to realize the lifting of the first small hanging plate 31 and the second small hanging plate 32; meanwhile, the unfolding degree of the second steel wire rope 42 can be freely adjusted, so as to freely adjust the position of the first small hanging plate 31 and the second small hanging plate 32 in the shaft and freely lift them in the 40m high section, facilitate the reciprocating movement of the first small hanging plate 31 and the second small hanging plate 32 between the tunneling work and the wall building work face, and the operation is simple, which can achieve the purpose of rapid construction. In addition, the long-distance lifting of the first small hanging plate 31 and the second small hanging plate 32 can be realized by the second steel wire rope 42, which creates conditions for tunneling and advanced wall building, so as to realize long-section tunneling and building.

[0059] Further, in the embodiment of the present application, as shown in Figure 1 The suspension unit 1 is a first steel wire rope, one end of which is connected with the first large hanging plate 21, and the other end is connected with a ground fixing system. The length of the first steel wire rope is long enough, and the first steel wire rope can bear the weight of the wall building unit 2, the expanding brush unit 3, the flexible lifting unit 4 and the workers. A winch is arranged on the ground fixing system, which facilitates the unfolding and winding of the first steel wire rope. In this embodiment, by arranging the first steel wire rope, the wall building unit 2 and the expanding brush unit 3 are fixed by connecting the first steel wire rope with the ground fixing system; meanwhile, the height of the wall building unit 2 and the expanding brush unit 3 is freely adjusted by controlling the first steel wire rope through the ground winch.

[0060] The working principle of the flexible lifting device 100 for the shaft rapid brushing and expanding is as follows: when brushing and walling work needs to be carried out, the suspension unit 1 and the walling unit 2 are fixed through the fixing device on the ground, the first small lifting platform 31 and the second small lifting platform 32 are first placed into the shaft, the second support rod 35 is rotated to be vertically abutted on the original shaft wall 6, then the workers stand on the first small lifting platform 31 and the second small lifting platform 32 to drill and form blast holes and place explosives in the blast holes, after the explosives are placed, the workers withdraw from the shaft, and the first small lifting platform 31 and the second small lifting platform 32 are lifted to a safe distance to carry out blasting to realize brushing, and the blasting waste is transported out from the transportation roadway at the bottom of the shaft; after the brushing is completed, the walling unit 2 and the brushing unit 3 are lowered through the fixing device on the ground, and the suspension unit 1 and the flexible lifting unit 4 are cooperated to ensure that the walling unit 2 is located in the large-section area of the shaft which has been brushed, and the brushing unit 3 is located in the small-section area of the shaft which needs to be brushed, the workers are placed on the first large lifting platform 21 through the lifting device, the first large lifting platform 21 is firmly contacted with the formwork through the first support rod 25, and the workers perform walling work on the first large lifting platform 21 and the second large lifting platform 22 after the formwork is installed on the brushed shaft wall 7; then the workers enter the brushing unit 3 to further brush downward, and after the explosives are placed each time in the brushing process, the workers withdraw from the shaft, and the flexible lifting device 100 for the shaft rapid brushing and expanding is lifted to a safe distance to carry out blasting to realize brushing; or, the workers perform brushing work on the brushing unit 3, and the other workers perform walling work on the walling unit 2, and the process is repeated.

[0061] According to one or more embodiments of the present application, the walling unit 2 and the brushing unit 3 are simultaneously arranged, and the walling unit 2 and the brushing unit 3 are placed at the preset position of the shaft through the cooperation of the suspension unit 1 and the flexible lifting unit 4, then the brushing and walling work is respectively realized by the brushing unit 3 and the walling unit 2, the brushing height is 5-40 m each time, so that long-section excavation and walling is realized, the alternating frequency of brushing and walling work is reduced, the handover time of the workers is reduced, the work efficiency is improved, the brushing and expanding speed is increased from 6-9 m / d to 12-15 m / d, and the construction period is saved by 260÷9-260÷15=11.6 days during 260 m brushing and expanding without waste pile in the shaft. In addition, the brushing and walling work can be simultaneously carried out, and the work efficiency is further improved.

[0062] Note that the present application is not limited to the above-described embodiments. The above-described embodiments are merely examples, and embodiments having substantially the same configuration, function, and effect as the technical idea of the present application are included in the technical scope of the present application. Furthermore, other modes constructed by applying various modifications to the embodiments, or by combining part of the configurations of the embodiments, which can be conceived by those skilled in the art, without departing from the spirit of the present application, are also included in the scope of the present application.

Claims

1. A flexible lifting device for rapid shaft expansion, characterized in that, It includes a suspension unit, a wall-building unit, a flexible lifting unit, and a brush-expanding unit connected sequentially from top to bottom; the wall-building unit includes a first large hanging platform and a second large hanging platform arranged vertically; the brush-expanding unit includes a first small hanging platform and a second small hanging platform arranged vertically; the diameter of the large section after the shaft is brushed, the diameter of the first large hanging platform and the second large hanging platform, the diameter of the small section before the shaft is brushed, and the diameter of the first small hanging platform and the second small hanging platform decrease sequentially.

2. The flexible lifting device for rapid shaft expansion according to claim 1, characterized in that, The brush expansion unit also includes a second column disposed between the first small hanging plate and the second small hanging plate for connecting the first small hanging plate and the second small hanging plate.

3. The flexible lifting device for rapid shaft expansion according to claim 2, characterized in that, A second vertical assembly is provided between the first small hanging plate and the second small hanging plate; the second vertical assembly is a second steel ladder provided between the first small hanging plate and the second small hanging plate, or the second vertical assembly is a second platform provided on the second column.

4. The flexible lifting device for rapid shaft expansion according to claim 3, characterized in that, The edge of the first small hanging plate is provided with a T-shaped second support rod that is rotatably connected to the first small hanging plate.

5. The flexible lifting device for rapid shaft expansion according to claim 4, characterized in that, The edge of the second small hanging plate is provided with a hinge that is rotatably connected to the second small hanging plate.

6. The flexible lifting device for rapid shaft expansion according to claim 1, characterized in that, The wall-building unit also includes a first column disposed between the first large hanging plate and the second large hanging plate for connecting the first large hanging plate and the second large hanging plate.

7. The flexible lifting device for rapid shaft expansion according to claim 6, characterized in that, A first vertical assembly is provided between the first large hanging platform and the second large hanging platform; the first vertical assembly is a first steel ladder provided between the first large hanging platform and the second large hanging platform, or the second vertical assembly is a first platform provided on the first column.

8. The flexible lifting device for rapid shaft expansion according to claim 7, characterized in that, The edge of the first large hanging platform is provided with a first support rod that is rotatably connected to the first large hanging platform.

9. The flexible lifting device for rapid shaft expansion according to claim 1, characterized in that, The flexible connection unit includes an electric winch and a second steel wire rope; the electric winch is mounted on the second large hanging plate, one end of the second steel wire rope is connected to the electric winch, and the other end is connected to the first small hanging plate.

10. The flexible lifting device for rapid shaft widening according to claim 1, characterized in that, The suspension unit is a first steel wire rope, one end of which is connected to the first large hanging platform, and the other end is connected to the ground fixing system.

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