Self-adaptive lifting platform for underground space construction

Abstract

The invention relates to the technical field of underground building construction, and particularly discloses a self-adaptive lifting platform for underground space construction. Comprising a movable transshipment platform, a supporting assembly which is mounted in the transshipment platform and is in sliding fit with the transshipment platform in the vertical direction, a hanging basket which is mounted in the supporting assembly and is in sliding fit with the supporting assembly in the vertical direction, and a driving assembly which is mounted on the transshipment platform and is used for controlling the supporting assembly or the hanging basket to lift and slide in the vertical direction, and the lifting through opening is formed in the transshipment platform and used for transshipment of goods in the hanging basket or installation of the supporting assembly. According to the stable lifting and transferring functions, rapid adjustment and building can be carried out according to the actual environment conditions, so that the construction efficiency is improved, and the safety risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of underground building construction, and more particularly to an adaptive lifting platform for underground space construction. Background Art

[0002] At underground construction sites (such as subway stations, underground tunnels, and ultra-deep basements), the transfer of building materials and equipment often presents numerous challenges due to limited space and complex construction conditions. Currently, existing underground construction sites often lack dedicated lifting and transfer platforms, resulting in inefficient transfer of building materials and equipment and numerous safety hazards.

[0003] Traditional transfer equipment often struggles to achieve stable lifting and transfer within the confined underground construction environment. While existing technologies meet transfer requirements, they also fail to effectively adjust the lifting platform's posture to the actual construction site conditions. Specifically, existing platforms have significant shortcomings in adapting to changes in the on-site environment, making precise adjustments, and enabling rapid construction. For example, existing lifting platforms often struggle to maintain stability and reliability when faced with irregularities in underground spaces or uneven ground.

[0004] Furthermore, existing lifting and transfer platforms are often complex to operate, involving multiple steps and adjustments, which increases the difficulty for construction workers. Stabilizing and setting up the platforms also often requires considerable time and manpower, impacting overall construction efficiency.

[0005] Therefore, developing an adaptive, flexible, and easy-to-operate underground construction lifting platform has become an urgent task. This platform not only needs to have stable lifting and transport capabilities, but also needs to be able to be quickly adjusted and constructed according to actual environmental conditions to improve construction efficiency and reduce safety risks. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an adaptive lifting platform for underground space construction;

[0007] The solution adopted by the present invention to solve the technical problem is:

[0008] An adaptive lifting platform for underground space construction includes a movable transfer platform, a support assembly installed in the transfer platform and slidingly cooperating in the vertical direction, a hanging basket installed in the support assembly and slidingly cooperating with the support assembly in the vertical direction, a driving assembly installed on the transfer platform and used to control the lifting and sliding of the support assembly or the hanging basket in the vertical direction, and a lifting opening arranged on the transfer platform and used for transferring goods in the hanging basket or installing the support assembly.

[0009] In some possible embodiments, the transfer platform includes a main platform provided with a lifting passage, two groups of symmetrically arranged retractable platforms that slide horizontally with the main platform, a retractable adjustment component installed at the bottom of the main platform and used to move the two groups of retractable platforms closer to or away from each other, and a moving component installed at the bottom of the retractable platform and used to control the movement of the loading platform.

[0010] In some possible embodiments, the moving assembly includes two sets of traveling assemblies rotatably mounted on the bottom of the two sets of retractable platforms and symmetrically arranged along the sliding direction of the retractable platforms, and an angle adjustment assembly that is transmission-coordinated with the two sets of traveling assemblies.

[0011] In some possible embodiments, the retractable and extendable adjustment assembly includes a first transmission rod installed at the bottom of the main platform and transmission-connected to the two sets of retractable and extendable platforms, and a retractable and extendable driving member transmission-coordinated with the first transmission rod and installed at the bottom of the main platform;

[0012] The first transmission rods are divided into two groups and are symmetrically arranged.

[0013] In some possible embodiments, the axial direction of the first transmission rod is arranged along the sliding direction of the retractable platform; the first transmission rod includes a connecting rod that is transmission-connected to the retractable drive member and rotationally coordinated with the main platform, and two sets of coaxial first adjustment screws that are respectively connected to both ends of the connecting rod; the two sets of first adjustment screws are respectively threadedly connected to the corresponding retractable platform; the threads on the two sets of first adjustment screws have opposite rotation directions;

[0014] A guide slot is provided on the main platform along the sliding direction of the retractable platform, and a guide slide is provided on the retractable platform to slide with the guide slot; the guide slide is threadedly engaged with the first adjusting screw;

[0015] The upper part and the bottom part of the main platform are respectively provided with guide cavities which are communicated with the guide through grooves; and the retractable platform is provided with a guide seat which cooperates with the guide cavity and is located in the guide cavity.

[0016] In some possible embodiments, the retractable drive component includes a first drive motor, a first drive shaft connected to the first drive motor, a first connecting shaft connected to both ends of the first drive shaft through universal ball joints, a first transmission shaft connected to the other end of the first connecting shaft through a universal ball joint, a first worm connected to the other end of the first transmission shaft, and a first worm wheel mounted on the connecting rod and mated with the first worm.

[0017] In some possible embodiments, the travel assembly includes two sets of travel devices that are rotatably mounted on the bottom of the two sets of retractable platforms and are symmetrically arranged, and a second transmission rod that is transmission-connected to the two sets of travel devices and is arranged parallel to the first transmission rod; the angle adjustment assembly includes a second drive shaft that is transmission-connected to an end of the second transmission rod, and a second drive motor that is transmission-connected to the other end of the second drive shaft;

[0018] The traveling device includes a rotating seat that is transmission-connected to the second driving shaft and rotates around the Z-axis, and a traveling wheel installed on the rotating seat.

[0019] In some possible embodiments, the second transmission rod includes a second main rod installed outside the main platform and arranged along the sliding direction of the retractable platform, and an adjustment shaft connected to both ends of the second main rod and coaxially arranged;

[0020] A reversing bevel gear set is provided between the adjusting shaft and the second driving shaft;

[0021] A second worm gear is provided on the rotating seat and rotates around the Z axis;

[0022] A second worm segment is provided on the second drive shaft for use in conjunction with a second worm gear;

[0023] The axes of the two sets of second drive shafts are on the same straight line and close to each other at one end and are matched with the second drive motor through a bevel gear structure.

[0024] In some possible embodiments, an outer support wheel is provided in the lifting passage and is in sliding engagement with the support assembly; the drive assembly includes two sets of symmetrically arranged support frames installed above the lifting passage, and a drive member installed on the support frames and sliding on the support frames;

[0025] The driving member includes an assembly seat slidably mounted on the support frame, a rope storage roller mounted on the assembly seat, a rope with one end wound around the rope storage roller, a guide wheel group mounted on the assembly seat, a third driving motor transmission-connected to the rope storage roller, and a moving driving device transmission-connected to the assembly seat and used to control the assembly seat to slide on the support frame; the other end of the rope passes through the guide wheel group and is connected to the support assembly or the hanging basket.

[0026] In some possible embodiments, the support assembly includes a support frame that is slidably engaged with the outer support wheel and one end of which is located in the lifting passage, and a support pad installed at the bottom of the support frame and used to support, position, and fix the hanging basket; a lifting and sliding cavity used in conjunction with the hanging basket is provided in the support frame;

[0027] An outer guide rail that slides with the outer support wheel is provided on the outside of the support frame; an inner guide rail that slides with the outer side of the hanging basket is provided inside the support frame; and a guide pulley that slides with the inner guide rail is provided on the outside of the hanging basket.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention can effectively transport building materials and construction equipment to the underground construction site through the flexible design of the support assembly and the hanging basket. The arrangement of the main platform and the retractable platform makes the present invention have good adaptive characteristics, enabling the present invention to operate efficiently in a small and complex underground environment, significantly improving the transportation efficiency of the construction site.

[0030] The present invention cooperates with the transfer platform, the retractable and extendable assembly, and the angle adjustment assembly to adjust the retractable and extendable posture of the retractable and extendable platform according to the actual construction environment, and to adjust the deflection angle of the traveling wheels assembled at the bottom of the retractable and extendable platform, so that the transfer platform meets specific span and size requirements, thereby enabling the transfer platform to be stably supported and positioned on the ground; the influence of foundation pits and wells on the transfer platform is eliminated, ensuring that the transfer platform can maintain stability in different construction site environments, adapt to various terrains and space restrictions, and improve the flexibility of construction operations;

[0031] The modular design of the present invention enables the stable construction of support components on the transfer platform and underground construction site, which is faster and easier. Construction workers can quickly complete the construction of support components in a short time, thereby forming a stable lifting channel, effectively reducing the time and manpower required during the construction process.

[0032] The invention ensures that the platform can be firmly fixed during use through the precise control of the drive assembly and the stable configuration of the outer support wheels and the guide rails, and ensures the stable lifting and transport of materials or equipment, thereby improving the safety of the construction site.

[0033] The present invention can be flexibly adjusted in different underground construction environments to meet the irregularity or unevenness requirements of the on-site environment; this design enables the platform to operate stably under various construction conditions, ensuring the smooth progress of construction tasks.

[0034] The present invention greatly reduces the complexity of operation and simplifies the lifting and transporting process. Users only need to perform a few operations to complete the adjustment and use of the platform, which greatly reduces the workload of construction workers and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Figure 2It is a structural diagram of the main platform and the retractable platform in the present invention;

[0037] Figure 3 This is a structural diagram of the main platform, retractable platform, retractable adjustment component, and mobile component in the present invention;

[0038] Figure 4 Schematic diagram of the structure of the retractable and adjustable component of the present invention;

[0039] Figure 5 Schematic diagram of the structure of the mobile component in the present invention;

[0040] Figure 6 Schematic diagram of the structure of the drive assembly in the present invention;

[0041] Figure 7 It is a structural schematic diagram of the hanging basket in the present invention;

[0042] Figure 8 It is a structural schematic diagram of the mobile drive device and the support frame in the present invention;

[0043] Figure 9 It is a structural schematic diagram of the mobile drive device and the assembly seat in the present invention;

[0044] Figure 10 It is a structural schematic diagram of the support frame in the present invention;

[0045] Figure 11 It is a structural schematic diagram of the support cushion in the present invention;

[0046] Among them: 1. Transfer platform; 11. Main platform; 111. Lifting port; 1111. Outer support wheel; 112. Guide slot; 113. Guide cavity; 12. Retractable platform; 121. Guide slide; 122. Guide seat; 13. Retractable adjustment assembly; 131. First transmission rod; 1311. Connecting rod; 1312. First adjustment screw; 132. First drive motor; 133. First drive shaft; 134. Connecting shaft; 135. First transmission shaft; 136. First worm; 137. First worm gear; 14. Moving assembly; 141. Traveling device; 1411. Second drive shaft; 14111. Second worm segment; 1412. Second drive motor; 1413. Transfer assembly Moving seat; 14131, second worm gear; 1414, traveling wheel; 142, second transmission rod; 1421, second main rod; 1422, adjusting shaft; 2, support assembly; 21, support frame; 211, lifting and sliding cavity; 212, outer guide rail; 213, inner guide rail; 22, support pad seat; 221, positioning cone; 3, hanging basket; 31, guide pulley; 32, positioning cone seat; 4, driving assembly; 41, support frame; 411, guide slide; 412, give way groove; 42, assembly seat; 43, rope storage roller; 44, rope; 45, guide wheel group; 46, third driving motor; 47, fourth driving motor; 48, second adjusting screw; 49, rotating seat; 410, sliding seat. DETAILED DESCRIPTION

[0047] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; they can refer to direct connections or indirect connections through an intermediary; they can refer to internal communication between two components or interactions between two components. The terms "first," "second," and similar terms mentioned in this application do not denote any order, quantity, or importance; they are simply used to distinguish between different components. Similarly, terms such as "one" or "a" do not indicate a quantitative limitation; rather, they indicate the presence of at least one. In the implementation of this application, "and / or" describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. In the description of the embodiments of this application, unless otherwise specified, "plurality" means two or more. For example, "plurality" refers to two or more positioning posts. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0048] The present invention is described in detail below.

[0049] like Figure 1As shown, in the present invention, the sliding direction of the retractable platform 12 is the X-axis direction, the sliding direction of the support assembly 2 and the hanging basket 3 is the Z-axis direction, and the direction perpendicular to the X-axis direction and the Z-axis direction is the Y-axis direction;

[0050] like Figures 1-11 As shown:

[0051] An adaptive lifting platform for underground space construction includes a movable transfer platform 1, a support assembly 2 installed in the transfer platform 1 and slidingly engaged in the vertical direction (Z-axis direction), a hanging basket 3 installed in the support assembly 2 and slidingly engaged with the support assembly 2 in the vertical direction, a drive assembly 4 installed on the transfer platform 1 and used to control the vertical lifting and sliding of the support assembly 2 or the hanging basket 3, and a lifting port 111 provided on the transfer platform 1 and used to transfer goods in the hanging basket 3 or install the support assembly 2.

[0052] When in use, first install the transfer platform 1 on the supporting surface, and control the movement of the transfer platform 1 on the supporting surface so that the lifting port 111 is connected to the underground space; then install the support component 2 through the lifting port 111 in cooperation with the drive component 4, so that the support component 2 will be located in the lower space; then install the hanging basket 3; it can be used after the installation is completed. When in construction, the driving component 4 is used to control the lifting of the hanging basket 3 in the Z-axis direction to realize the transportation of construction materials or equipment.

[0053] In some possible implementations, in order to enable the transfer platform 1 to be effectively supported and fixed, and to enable the materials or equipment in the lower space to be transferred through the cooperation between the drive assembly 4 and the hanging basket 3;

[0054] The transfer platform 1 includes a main platform 11 with a lifting opening 111, two groups of symmetrically arranged retractable platforms 12 that slide horizontally with the main platform 11, a retractable adjustment component 13 installed at the bottom of the main platform 11 and used to move the two groups of retractable platforms 12 closer to or away from each other, and a moving component 14 installed at the bottom of the retractable platform 12 and used to control the movement of the loading platform.

[0055] The two sets of retractable platforms 12 are symmetrically arranged along the Y-axis direction, and slide together with the main platform 11 along the sliding direction of the retractable platform under the drive of the retractable adjustment component 13;

[0056] Furthermore, a lifting port 111 is provided at the center of the main platform 11, and the two sets of retractable platforms 12 are controlled by the retractable and retractable adjustment assembly 13 to move closer to or further away from each other on the support surface via the moving assembly 14, thereby meeting the span and size requirements of the support surface at the construction site, and enabling the transfer platform 1 to be stably supported and positioned on the support surface;

[0057] The retractable and extendable adjustment component 13 provided on the transfer platform 1 is used to drive the two groups of retractable and extendable platforms 12 to be retracted and adjusted along the sliding direction of the retractable and extendable platforms to adjust the overall size of the transfer platform 1; eliminate the influence of the foundation pit and the shaft on the transfer platform 1, ensure that the transfer platform 1 can maintain stability in different construction site environments, adapt to various terrains and space restrictions, and improve the flexibility of construction operations.

[0058] In some possible embodiments, the retractable and extendable adjustment assembly 13 includes a first transmission rod 131 installed at the bottom of the main platform 11 and transmission-connected to the two sets of retractable and extendable platforms 12, and a retractable and extendable driving member transmission-coordinated with the first transmission rod 131 and installed at the bottom of the main platform 11;

[0059] The first transmission rods 131 are divided into two groups and are symmetrically arranged.

[0060] In some possible embodiments, the axial direction of the first transmission rod 131 is arranged along the sliding direction of the retractable platform 12; the first transmission rod 131 includes a connecting rod 1311 that is transmission-connected to the retractable drive member and rotationally engaged with the main platform 11, and two sets of coaxial first adjustment screws 1312 that are respectively connected to both ends of the connecting rod 1311; the two sets of first adjustment screws 1312 are respectively threadedly connected to the corresponding retractable platform 12; and the threads on the two sets of first adjustment screws 1312 have opposite rotation directions.

[0061] A guide slot 112 is provided on the main platform 11 along the sliding direction of the retractable platform 12, and a guide slide 121 is provided on the retractable platform 12 to slide with the guide slot 112; the guide slide 121 is threadedly engaged with the first adjusting screw 1312;

[0062] The upper and bottom portions of the main platform 11 are provided with guide cavities 113 that are in communication with the guide slots 112 . The retractable platform 12 is provided with a guide seat 122 that cooperates with the guide cavity 113 and is located within the guide cavity 113 .

[0063] Two groups of guide grooves 112 are provided on both sides of the main platform 11, and outer guide support plates forming a guide cavity 113 are fixed on the upper and lower sides of the guide grooves 112, and guide seats 122 are provided on the upper and lower sides of the guide slide 121. A through groove arranged along the sliding direction of the folding and unfolding platform is formed between the two groups of guide seats 122 corresponding to each group of guide slides 121; the end of the first adjusting screw 1312 away from the connecting rod 1311 will be located in the through groove and will be screwed into the guide seat 122; the guide seat 122 is arranged in the guide cavity 113 and maintains sliding fit. This design can ensure that the folding and unfolding platform 12 slides stably on the main platform 11.

[0064] Specifically, there are two groups of guide seats 122 on each group of retractable platforms, and there are also two groups of guide slots 112 that cooperate with each other.

[0065] In some possible embodiments, the moving component 14 includes two sets of traveling components that are rotatably mounted on the bottom of the two sets of retractable platforms 12 and symmetrically arranged along the sliding direction (X-axis direction) of the retractable platforms, and an angle adjustment component that is transmission-coordinated with the two sets of traveling components.

[0066] In some possible embodiments, the retractable drive member includes a first drive motor 132, a first drive shaft 133 connected to the first drive motor 132 and arranged along the Y-axis direction, a first connecting shaft 134 connected to both ends of the first drive shaft 133 via a universal ball joint, a first transmission shaft 135 connected to the other end of the first connecting shaft 134 via a universal ball joint, a first worm 136 connected to the other end of the first transmission shaft 135, and a first worm wheel 137 sleeved on the connecting rod 1311 and drivingly engaged with the first worm 136; the first transmission shaft 135 and the first worm 136 are coaxially arranged along the Y-axis direction;

[0067] When in use, the first drive motor 132 is started to drive the first drive shaft 133 to rotate through the bevel gear structure, thereby driving the two groups of first connecting shafts 134 to rotate, and the rotation of the first connecting shaft 134 drives the first transmission shaft 135 to rotate around its axial direction, and the first worm 136 and the first worm gear 137 cooperate to realize the rotation of the connecting rod 1311, thereby driving the first adjusting screw 1312 connected to the connecting rod 1311 to rotate, because the two groups of first adjusting screws 1312 connected to the same connecting rod 1311 have opposite thread rotation directions, thereby realizing the guide slides 121 matched with the two coaxial groups of first adjusting screws 1312 to approach or move away from each other, thereby realizing the two groups of retractable platforms 12 respectively connected to the guide slides to approach or move away from each other along the sliding direction of the retractable platforms;

[0068] The combination of the first worm gear 137 and the first worm 136 has a deceleration and torque increase and self-locking effect, ensuring that the first adjusting screw 1312 can operate stably and drive the guide slide 121 to slide stably along the corresponding guide groove 112; thereby ensuring that the retractable and extendable adjustment assembly 13 can drive the two sets of retractable and extendable platforms 12 to perform synchronous retraction and adjustment, thereby adjusting the size of the transfer platform 1 and the span of the traveling assembly;

[0069] Specifically, when the first drive motor 132 rotates, it drives the first drive shaft 133 to rotate around its axis, thereby causing the two groups of first connecting shafts 134 to rotate. The two groups of first connecting shafts 134 rotate in opposite directions, thereby driving the two groups of first transmission shafts 135 to rotate, and the two groups of first transmission shafts 135 rotate in the same direction, driving the two groups of connecting rods 1311 to rotate separately, thereby driving the first adjusting screws 1312 connected to each other to rotate.

[0070] When used in underground space construction, the transfer platform 1 is above the ground and is stably supported on the ground by the traveling assembly. When the retractable and retractable postures of the two sets of retractable platforms 12 are adjusted by the retractable and retractable assembly, the traveling assembly is adjusted at the same time so that the traveling assembly is located outside the excavated foundation pit and shaft and is stably supported on the ground, so that the transfer platform 1 is erected as a whole above the foundation pit and shaft extending into the underground.

[0071] In some possible embodiments, the traveling assembly includes two sets of traveling devices 141 rotatably mounted on the bottom of the two sets of retractable platforms 12 and symmetrically arranged in the Y-axis direction, and a second transmission rod 142 that is transmission-connected to the two sets of traveling devices 141 and arranged parallel to the first transmission rod 131;

[0072] The angle adjustment assembly includes a second drive shaft 1411 that is transmission-connected to the end of the second transmission rod 142, and a second drive motor 1412 that is transmission-connected to the other end of the second drive shaft 1411;

[0073] The traveling device 141 includes a rotating base 1413 that is transmission-connected to the second driving shaft 1411 and rotates around the Z-axis, and a traveling wheel 1414 mounted on the rotating base 1413;

[0074] The second drive shaft 1411 is arranged along the Y-axis direction; the two sets of second transmission rods 142 are arranged along the sliding direction of the retractable platform 12; the rotating seat 1413 is installed at the bottom of the retractable platform 12 and rotates with the retractable platform 12 around the Z-axis direction;

[0075] By cooperating with the rotating seat 1413 and the angle adjustment assembly, the traveling wheel 1414 rotates synchronously, thereby adjusting the direction angle of the traveling wheel 1414.

[0076] At least two sets of traveling wheels 1414 are installed on each set of folding and unfolding platforms 12 to provide stable support for the transfer platform 1 and drive the entire vehicle-mounted platform to move stably. The traveling wheels 1414 are adjusted in conjunction with the angle adjustment component to control the transfer platform 1 to move in the required direction.

[0077] In some possible embodiments, the second transmission rod 142 includes a second main rod 1421 installed on the outside of the main platform 11 and arranged along the sliding direction (X-axis direction) of the retractable platform 12, and an adjustment shaft 1422 connected to both ends of the second main rod 1421 and coaxially arranged; the adjustment shaft 1422 is sleeved within the second main rod 1421 and connected to the outer side of the retractable platform 12; the adjustment shaft 1422 is slidably engaged with the second main rod 1421, and the rotation of the second main rod 1421 drives the adjustment shaft 1422 to rotate.

[0078] Preferably, the adjustment shaft 1422 is a spline shaft, the second main rod 1421 is a spline sleeve, the second main rod 1421 is fixed to the outer side of the retractable platform 12, and the spline shaft and the corresponding spline sleeve maintain sliding insertion;

[0079] A reversing bevel gear set is provided between the adjusting shaft 1422 and the second driving shaft 1411;

[0080] A second worm gear 14131 is provided on the rotating seat 1413 and rotates around the Z axis.

[0081] The second drive shaft 1411 is provided with a second worm segment 14111 used in conjunction with the second worm gear 14131;

[0082] The axes of the two sets of second drive shafts 1411 are on the same straight line and close to each other at one end, and are engaged with the second drive motor 1412 through a bevel gear structure.

[0083] Specifically, the output shaft of the second drive motor 1412 is arranged in the vertical direction, and a second bevel gear is provided on the output shaft. A second transmission bevel gear meshing with the second bevel gear is provided at one end of the two groups of second drive shafts 1411 away from the corresponding second transmission rod 142; the second drive motor 1412 will drive the two groups of second drive shafts 1411 to rotate, and since the end of the adjusting shaft 1422 away from the second main rod 1421 is connected to the second drive shaft 1411 through the bevel gear structure, the two groups of second drive shafts 1411 are driven to rotate synchronously. At the same time, since the second worm gear 14131 and the second worm segment 14111 are coordinated in transmission, the rotation angle of the traveling wheel 1414 is adjusted, thereby realizing the synchronous rotation of all the traveling wheels 1414.

[0084] When in use, when the retractable and unfolding platforms 12 on both sides are driven to adjust the retractable and unfolding postures through the retractable and unfolding adjustment components 13, the traveling wheels 1414 are controlled by the angle adjustment components to deflect to the telescopic and unfolding direction toward the retractable and unfolding platforms 12, so that the retractable and unfolding postures of the retractable and unfolding platforms 12 can be easily adjusted;

[0085] When in use, the second drive motor 1412 rotates, driving the two groups of second drive shafts 1411 to rotate in opposite directions. The two groups of second drive shafts 1411 respectively drive the rotating seats 1413 transmitted thereto to rotate in the same direction around the Z axis. At the same time, the two groups of second drive shafts 1411 will also drive the second main rods 1421 to rotate respectively. The two groups of second main rods 1421 rotate in opposite directions, thereby driving the second drive shafts 1411 respectively connected to the other ends of the two groups of second main rods 1421 to rotate. The two groups of second drive shafts 1411 rotate in opposite directions, and the rotation of the two groups of second drive shafts 1411 drives the rotating seats 1413 transmitted thereto to rotate in the direction of the Z axis, so that all the rotating seats 1413 rotate and rotate in the same direction.

[0086] In some possible embodiments, an outer support wheel 1111 that slides with the support assembly 2 is provided in the lifting opening 111; the driving assembly 4 includes two groups of symmetrically arranged assembly brackets 41 installed above the lifting opening 111, and a driving member installed on the assembly bracket 41 and sliding on the assembly bracket 41 along the sliding direction of the folding platform 12; the two groups of assembly brackets 41 are symmetrically arranged along the Y axis.

[0087] The driving member includes an assembly base 42 slidably mounted on the assembly bracket 41 and sliding along the X-axis direction, a rope storage roller 43 mounted on the assembly base 42 and sliding along the Y-axis direction, a rope 44 with one end wound around the rope storage roller 43, a guide wheel group 45 mounted on the assembly base 42 and used to guide the rope 44, a third drive motor 46 transmission-connected to the rope storage roller 43, and a mobile drive device transmission-connected to the assembly base 42 and used to control the assembly base 42 to slide on the assembly bracket 41; the other end of the rope 44 passes through the guide wheel group 45 and is connected to the support assembly 2 or the hanging basket 3.

[0088] A rope storage roller 43 is rotatably mounted on the assembly base 42. A third drive motor 46 is fixedly mounted on the assembly base 42. A third worm is fixedly connected to the output shaft of the third drive motor 46. A rope 44 is wound around each rope storage roller 43. A plurality of guide wheel assemblies 45 are rotatably mounted on the assembly base 42, each of which is matched with the rope storage roller 43. The outer end of each rope 44 is released from the rope storage roller 43, passes around the corresponding guide wheel assemblies 45, and then extends vertically downward to the lifting port 111.

[0089] When the third drive motor 46 drives the third worm to rotate, it can transmit power to the third worm wheel and the rope storage roller 43 to rotate, and can control the retraction and release posture of each group of ropes 44. The released ropes 44 are connected to the support frame 21 or the hanging basket 3. When the two groups of drive components 4 are controlled to run synchronously, the ropes 44 or the support frame 21 can be driven to rise and fall stably in the vertical direction to realize the construction of the support component 2 or the transfer of goods by the hanging basket 3; when the rope 44 is connected to the support frame 21, the erection of the support component 2 is realized; when the rope 44 is connected to the hanging basket 3, material transfer is realized.

[0090] Since the third worm wheel and the third worm have a self-locking effect, that is, the power of the third worm can be stably transmitted to the third worm wheel and drive the third worm wheel to operate, and the power at the third worm wheel end cannot be transmitted back to the third worm and drive the third worm to rotate, the hoisted support frame 21 or the hanging basket 3 can be stably suspended.

[0091] Furthermore, the mobile driving device is specifically a screw linear transmission structure, including a fourth driving motor 47 installed at the bottom of the assembly bracket 41, a second adjusting screw 48 connected to the fourth driving motor 47 and arranged along the X-axis direction, a rotating seat 49 screwed with the second adjusting screw 48 and connected to the assembly bracket 41 and the assembly seat 42, and a sliding seat 410 connected to the assembly bracket 41 and the assembly seat 42: a guide groove 411 and a clearance groove 41 are arranged on the top of the assembly bracket 41 to maintain parallel arrangement. 2. A sliding seat 410 fixed to the bottom of the assembly seat 42 maintains a sliding combination with the guide groove 411. A rotating seat 49 fixed to the bottom of the assembly seat 42 is arranged in the clearance groove 412. The fourth drive motor 47 is fixed to the bottom of the assembly bracket 41. The second adjustment screw 48 is rotatably mounted on the assembly bracket 41 and maintains a power connection with the fourth drive motor 47. The guide groove 411 and the clearance groove 412 are arranged along the sliding direction of the retractable platform. The longitudinal direction of the guide groove 411 and the clearance groove 412 is arranged along the X-axis direction.

[0092] The second adjusting screw 48 is driven by the fourth driving motor 47 to operate, which can drive the assembly seat 42 to slide along the assembly bracket 41 to adjust the position of the rope 44 thereon, thereby enabling the rope 44 to be stably connected to the support frame 21, or enabling the rope 44 to be stably connected to the support assembly 2 or the hanging basket 3.

[0093] In some possible embodiments, the support assembly 2 includes a support frame 21 that is slidably engaged with the outer support wheel 1111 and has one end located in the lifting passage 111, and a support pad 22 installed at the bottom of the support frame and used to support, position, and fix the hanging basket 3; the support frame 21 is provided with a lifting and sliding cavity 211 used in conjunction with the hanging basket 3;

[0094] The support frame 21 is assembled and fixed with square steel, angle steel and other structures, similar to the standard section of a tower crane, and its interior is set as an unobstructed lifting and sliding cavity 211 to ensure that the loading basket 3 can be stably lifted and lowered inside the lifting channel;

[0095] The support frames 21 are stacked and arranged along the Z-axis direction, and adjacent support frames 21 are fixed and combined by bolts. The number of support frames 21 can be increased or decreased according to the depth of the foundation pit and shaft of the underground construction. The support pads 22 are also connected to the lowest support frame 21 by bolts, and the support pads 22 are fixedly connected to the bolts pre-buried on the underground construction site. Through the construction of the support frames 21, a lifting channel is formed from the underground construction site to the transfer platform 1, thereby ensuring that the hanging basket 3 can move stably in the lifting channel to carry out the transfer of construction materials and equipment.

[0096] Furthermore, for the lowest support frame 21, some of its sides lack the diagonal bracing structure to form an unobstructed transfer passage, which facilitates the transfer of materials and construction equipment between the underground construction site and the hanging basket 3 through the transfer passage.

[0097] An outer guide rail 212 that slides with the outer support wheel 1111 is provided on the outer side of the support frame 21; an inner guide rail 213 that slides with the outer side of the hanging basket 3 is provided inside the support frame 21; and a guide pulley 31 that slides with the inner guide rail 213 is provided on the outer side of the hanging basket 3.

[0098] The outer guide rail 212 is matched with the outer support wheel 1111 to ensure that the support frame 21 can be stably lifted and lowered along the Z-axis direction in the lifting opening 111.

[0099] The hanging basket 3 includes a load-bearing frame, a fixed frame, and a movable frame. The load-bearing frame is a rectangular frame assembled and welded from square steel, and a steel plate fixed to the rectangular frame. The fixed frame and the movable frame each include two sets of relatively arranged fixed frames, the two sets of fixed frames being fixedly connected to the load-bearing frame, and the movable frame being hingedly mounted on the fixed frame. The movable frame is designed to open outward to prevent spatial interference between the inward-rotating movable frame and materials and equipment loaded on the load-bearing frame. The load-bearing frame primarily bears the load, while the fixed frame and the movable frame provide lateral protection to prevent the transported goods from falling.

[0100] Both the fixed and movable frames are constructed of steel with weight-reducing holes cut into them. Multiple sets of inner guide pulleys 31 are rotatably mounted on the outer wall of the fixed frame. A vertical inner guide rail 213 is affixed to the inner side of the support frame 21. This integrated assembly of the inner guide rail 213 and the guide pulleys 31 ensures stable vertical movement of the hanging basket 3.

[0101] The support pad 22 is designed as a structure with an internal leakage hole, and a support foot is fixedly connected to the inner wall of the support pad 22, and a positioning cone 221 is fixedly connected to the support foot. A positioning cone seat 32 arranged on the same vertical axis as the positioning cone 221 is fixedly connected to the bottom of the load-bearing frame. When the hanging basket 3 runs to the bottom of the lifting channel, the positioning cone seat 32 is nested and plugged with the positioning cone 221 at the corresponding position to ensure that the hanging basket 3 can be stably docked at the underground construction site, and the movable frame can be turned outward to extend out of the transfer port, and materials and equipment can be transferred to the underground construction site through the transfer port.

[0102] Furthermore, a spade can be installed at the corners of the retractable platform 12. During the construction process, the spade can be turned down and inserted into the support surface to further improve the stability of the support of the transfer platform 1.

[0103] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An adaptive lifting platform for underground space construction, characterized in that: It includes a movable transfer platform, a support assembly installed in the transfer platform and slidingly cooperating in the vertical direction, a hanging basket installed in the support assembly and slidingly cooperating with the support assembly in the vertical direction, a driving assembly installed on the transfer platform and used to control the lifting and sliding of the support assembly or the hanging basket in the vertical direction, and a lifting port set on the transfer platform and used for transferring goods in the hanging basket or installing the support assembly.

2. The adaptive lifting platform for underground space construction according to claim 1, characterized in that: The transfer platform includes a main platform with a lifting opening, two groups of symmetrically arranged retractable platforms that slide with the main platform in the horizontal direction, a retractable adjustment component installed at the bottom of the main platform and used to move the two groups of retractable platforms closer to or away from each other, and a moving component installed at the bottom of the retractable platform and used to control the movement of the loading platform.

3. The adaptive lifting platform for underground space construction according to claim 2, characterized in that: The moving assembly includes two groups of traveling assemblies rotatably mounted on the bottom of the two groups of folding and unfolding platforms and symmetrically arranged along the sliding direction of the folding and unfolding platforms, and an angle adjustment assembly that is transmission-coordinated with the two groups of traveling assemblies.

4. The adaptive lifting platform for underground space construction according to claim 2, characterized in that: The retractable and extendable adjustment assembly includes a first transmission rod installed at the bottom of the main platform and transmission-connected to the two sets of retractable and extendable platforms, and a retractable and extendable driving member transmission-coordinated with the first transmission rod and installed at the bottom of the main platform; The first transmission rods are divided into two groups and are symmetrically arranged.

5. The adaptive lifting platform for underground space construction according to claim 4, characterized in that: The axial direction of the first transmission rod is arranged along the sliding direction of the retractable platform; the first transmission rod includes a connecting rod that is transmission-connected to the retractable drive member and rotatably cooperates with the main platform, and two sets of coaxial first adjustment screws that are respectively connected to both ends of the connecting rod; the two sets of first adjustment screws are respectively threadedly connected to the corresponding retractable platform; the threads on the two sets of first adjustment screws have opposite rotation directions; A guide slot is provided on the main platform along the sliding direction of the retractable platform, and a guide slide is provided on the retractable platform to slide with the guide slot; the guide slide is threadedly engaged with the first adjusting screw; The upper part and the bottom part of the main platform are respectively provided with guide cavities which are communicated with the guide through grooves; and the retractable platform is provided with a guide seat which cooperates with the guide cavity and is located in the guide cavity.

6. The adaptive lifting platform for underground space construction according to claim 4, characterized in that: The retractable drive component includes a first drive motor, a first drive shaft connected to the first drive motor, a first connecting shaft connected to both ends of the first drive shaft through universal ball joints, a first transmission shaft connected to the other end of the first connecting shaft through a universal ball joint, a first worm connected to the other end of the first transmission shaft, and a first worm wheel sleeved on the connecting rod and mated with the first worm.

7. The adaptive lifting platform for underground space construction according to claim 3, characterized in that: The travel assembly includes two sets of travel devices that are rotatably mounted on the bottom of the two sets of retractable platforms and are symmetrically arranged, and a second transmission rod that is transmission-connected to the two sets of travel devices and is arranged parallel to the first transmission rod; the angle adjustment assembly includes a second drive shaft that is transmission-connected to the end of the second transmission rod, and a second drive motor that is transmission-connected to the other end of the second drive shaft; The traveling device includes a rotating seat that is transmission-connected to the second driving shaft and rotates around the Z-axis, and a traveling wheel installed on the rotating seat.

8. The adaptive lifting platform for underground space construction according to claim 7, characterized in that: The second transmission rod includes a second main rod installed on the outside of the main platform and arranged along the sliding direction of the retractable platform, and an adjustment shaft connected to both ends of the second main rod and coaxially arranged; A reversing bevel gear set is provided between the adjusting shaft and the second driving shaft; A second worm gear is provided on the rotating seat and rotates around the Z axis; A second worm segment is provided on the second drive shaft for use in conjunction with a second worm gear; The axes of the two sets of second drive shafts are on the same straight line and close to each other at one end and are matched with the second drive motor through a bevel gear structure.

9. The adaptive lifting platform for underground space construction according to claim 2, characterized in that: An outer support wheel is provided in the lifting passage and is in sliding cooperation with the support assembly; the drive assembly includes two sets of support frames symmetrically arranged and installed above the lifting passage, and a drive member installed on the support frames and sliding on the support frames; The driving member includes an assembly seat slidably mounted on the support frame, a rope storage roller mounted on the assembly seat, a rope with one end wound around the rope storage roller, a guide wheel group mounted on the assembly seat, a third driving motor transmission-connected to the rope storage roller, and a moving driving device transmission-connected to the assembly seat and used to control the assembly seat to slide on the support frame; the other end of the rope passes through the guide wheel group and is connected to the support assembly or the hanging basket.

10. The adaptive lifting platform for underground space construction according to claim 9, characterized in that: The support assembly includes a support frame that is slidably matched with the outer support wheel and one end of which is located in the lifting passage, and a support pad installed at the bottom of the support frame and used to support, position and fix the hanging basket; a lifting and sliding cavity used in conjunction with the hanging basket is provided in the support frame; An outer guide rail that slides with the outer support wheel is provided on the outside of the support frame; an inner guide rail that slides with the outer side of the hanging basket is provided inside the support frame; and a guide pulley that slides with the inner guide rail is provided on the outside of the hanging basket.

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