Hoisting device for top arch of underground powerhouse

By designing components such as fixed parts and expansion components to work together, the safety hazard caused by the inability to disassemble the existing underground plant roof arch lifting device was solved, realizing convenient installation and disassembly and improving safety.

CN121853798APending Publication Date: 2026-04-14GUIZHOU WUJIANG HYDROPOWER DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-01-15
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing underground plant's roof arch lifting device cannot be disassembled, and prolonged use will damage the lower lifting ring, posing a safety hazard.

Method used

A lifting device is designed, comprising a fixing component, an expansion component, a moving component, a control component, a sliding component, an adjusting component, a filling component, a lifting component, and a limiting component. Through the coordinated work of these components, the device can be quickly installed and disassembled, avoiding damage to the lifting ring.

Benefits of technology

It enables convenient installation and disassembly of the lifting device, improves safety, and avoids damage caused by prolonged use.

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Abstract

The invention discloses an object lifting device for an underground powerhouse top arch, which comprises a fixing component, a fixing assembly, an expansion assembly arranged on the fixing assembly and a moving assembly arranged on the expansion assembly, the control component comprises a control assembly arranged on the fixing assembly, a sliding assembly arranged on the control assembly and an adjusting assembly arranged on the sliding assembly. According to the hoisting device for the underground powerhouse top arch, an adjusting rod is rotated to enable an adjusting assembly to drive a filling assembly to move, so that the filling assembly is close to hexagonal grooves in a first threaded rod and a second threaded rod, the first threaded rod and the second threaded rod rotate, and therefore a moving assembly and a lifting assembly move; the moving assembly moves to drive a moving plate to move upwards, so that the moving plate drives an expansion plate to move, and a limiting groove in a limiting plate abuts against a fixing rod to achieve rapid installation of the device.
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Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, and in particular to a hoisting device for the roof arch of an underground factory building. Background Technology

[0002] The roof arch of an underground factory usually refers to the top structure inside the basement of the factory. The design and construction of the roof arch of an underground factory are similar to those of above-ground buildings. The hoisting device of the roof arch of an underground factory refers to a mechanical device used on the roof arch of an underground factory to hoist heavy objects for the purpose of facilitating the movement of heavy objects.

[0003] Currently, the hoisting devices for the roof arches of underground factories on the market still have shortcomings. The existing devices are roughly rectangular, with the top welded to eight anchor rods and a circular hole at the bottom for easy placement of the hoisting device to facilitate the hoisting of heavy objects. However, the welding method makes it impossible to disassemble, and long-term use will damage the lower hoisting ring, creating a safety hazard. This needs to be improved. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problem that the existing underground factory building's ceiling hoisting device cannot be disassembled, and that prolonged use will damage the lower hoisting ring, causing safety hazards, this invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a fixing component, including a fixing assembly, an expansion assembly disposed on the fixing assembly, and a moving assembly disposed on the expansion assembly; a control component, including a control assembly disposed on the fixing assembly, a sliding assembly disposed on the control assembly, an adjusting assembly disposed on the sliding assembly, and a filling assembly disposed on the adjusting assembly; and a limiting component, including a lifting assembly disposed on the control assembly and a limiting assembly disposed on the lifting assembly.

[0007] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the fixing component includes a fixing shell, a mounting hole disposed on the fixing shell, a fixing rod disposed inside the mounting hole, a limiting plate disposed on the outer wall of the fixing rod, and a limiting groove disposed on the limiting plate.

[0008] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the expansion assembly includes a first sliding groove disposed inside the fixed shell, a first sliding block disposed inside the first sliding groove, an expansion plate disposed on the first sliding block, a T-shaped sliding groove disposed on the expansion plate, a T-shaped sliding block disposed inside the T-shaped sliding groove, and a movable plate disposed on the T-shaped sliding block. The inner end of the limiting plate is fixedly connected to the outer side of the corresponding expansion plate.

[0009] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the moving component includes an inclined rod disposed at the bottom end of the moving plate, a moving block disposed on the inclined rod, and a first threaded rod disposed on the moving block.

[0010] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the control component includes a rotating rod disposed on the fixed shell, a sprocket disposed on the rotating rod, a chain disposed on the sprocket, a second threaded rod disposed on the rotating rod, and a control plate disposed on the second threaded rod.

[0011] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the sliding assembly includes a second sliding groove disposed on the outer wall of the rotating rod, a second sliding block disposed inside the second sliding groove, a control ring disposed on the second sliding block, and a connecting rod disposed on the control ring.

[0012] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the adjusting component includes a storage groove disposed inside the fixed shell, a rotating threaded rod disposed inside the storage groove, a threaded sleeve disposed on the rotating threaded rod, a connecting rod disposed on the threaded sleeve, an adjusting rod disposed on the fixed shell, and a bevel gear disposed on the adjusting rod and the rotating threaded rod.

[0013] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the filling assembly includes a movable ring disposed on the control ring, a filling groove disposed inside the movable ring, a filling rod disposed inside the filling groove, a filling spring disposed on the filling rod, and a hexagonal groove disposed on the first threaded rod and the second threaded rod.

[0014] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the lifting assembly includes a movable groove disposed on the fixed shell, a movable frame disposed on the movable groove, an inclined groove disposed on the movable frame, a control rod disposed inside the inclined groove, a lifting plate disposed on the control rod, and a lifting slide rod disposed at the bottom end of the lifting plate.

[0015] As a preferred embodiment of the hoisting device for the underground factory roof arch of the present invention, the limiting component includes a limiting plate disposed on the lifting plate, a rotating plate disposed at the bottom of the fixed shell, a limiting groove disposed on the rotating plate, and a hoisting hole disposed on the rotating plate.

[0016] The beneficial effects of this invention are as follows: By rotating the adjusting rod, the adjusting component moves the filling component, causing the filling component to approach the hexagonal grooves on the first and second threaded rods. This causes the first and second threaded rods to rotate, which in turn causes the moving component and the lifting component to move. The movement of the moving component causes the moving plate to move upward, which in turn causes the moving plate to move the expansion plate. This causes the limiting groove on the limiting plate to abut against the fixing rod, enabling quick installation of the device. When the lifting component moves, it causes the limiting plate to abut against the limiting groove, preventing the lower rotating plate from rotating, thus achieving convenient adjustment of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the hoisting device for the roof arch of the underground factory building according to the present invention.

[0019] Figure 2 This is a schematic diagram of the adjustment component structure of the hoisting device for the underground factory roof arch of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the storage trough of the hanging device for the underground factory roof arch of the present invention.

[0021] Figure 4 This is a schematic diagram of the control component structure of the hoisting device for the underground factory roof arch of the present invention.

[0022] Figure 5 This is a schematic diagram of the expansion component structure of the hoisting device for the underground factory roof arch of the present invention.

[0023] Figure 6 This is a schematic diagram of the lifting component structure of the hoisting device for the underground factory roof arch of the present invention.

[0024] Figure 7 This is a schematic diagram of the sliding component structure of the hoisting device for the roof arch of the underground factory building according to the present invention.

[0025] Figure 8This is a schematic diagram of the filling component structure of the hoisting device for the underground factory roof arch of the present invention. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0030] Example 1, referring to Figures 1-8 The first embodiment of the present invention provides a hoisting device for the roof arch of an underground factory building. The device includes a fixing component 100, including a fixing component 101, an expansion component 102 disposed on the fixing component 101, and a moving component 103 disposed on the expansion component 102.

[0031] The fixing component 101 is used to fix the entire hoisting device, the expansion component 102 is used to control the device to fix the fixing rod 101c, so that the device can be fixed. The moving component 103 is used to control the expansion component 102 to achieve the effect of expansion and contraction, thereby completing the locking and unlocking of the fixing component 101, and realizing the effect of easy fixing and disassembly of the device.

[0032] Preferably, by controlling the movement of the moving component 103, the moving component 103 drives the expansion component 102 to expand and contract. When the expansion component 102 moves, it drives the fixing component 101 to lock and unlock the device.

[0033] Furthermore, the control component 200 includes a control component 201 disposed on the fixed component 101, a sliding component 202 disposed on the control component 201, an adjustment component 203 disposed on the sliding component 202, and a filling component 204 disposed on the adjustment component 203.

[0034] Among them, the control component 201 is used to control the movement of the moving component 103 and the lifting component 301, the sliding component 202 is used to limit the movement trajectory of the filling component 204, and the adjusting component 203 is used to drive the filling component 204 to move, so that the filling component 204 drives the parts in the moving component 103 and the control component 201 to move.

[0035] Preferably, the operation of the control adjustment component 203 drives the sliding component 202 to move, causing the filling component 204 to move along with it, thereby causing the filling component 204 to drive the moving component 103 and the control component 201 to move.

[0036] Furthermore, the limiting component 300 includes a lifting component 301 disposed on the control component 201, and a limiting component 302 disposed on the lifting component 301.

[0037] The lifting component 301 is used to control the raising and lowering of the limiting component 302. The limiting component 302 is used to limit the hanging hole 302d on the lower side of the device and restrict the orientation of the hanging hole 302d.

[0038] Preferably, the lifting component 301 is moved left and right by the control component 201, thereby causing the lifting component 301 to limit the lower hanging hole 302d, thus achieving the effect of easy adjustment of the equipment.

[0039] In summary: By controlling the operation of the adjustment component 203, the sliding component 202 drives the filling component 204 to move, which in turn drives the control component 201 and the moving component 103 to operate. When the moving component 103 moves, it drives the expansion component 102 to move, which in turn drives the fixing component 101 to lock and unlock the fixing rod 101c, thus facilitating installation and disassembly. When the control component 201 moves, it drives the lifting component 301 to move, which causes the limiting component 302 to lift, thus fixing the hanging hole 302d on the lower side and facilitating adjustment.

[0040] Example 2, refer to Figures 1-5The second embodiment of the present invention includes: a fixing component 101 including a fixing shell 101a, a mounting hole 101b disposed on the fixing shell 101a, a fixing rod 101c disposed inside the mounting hole 101b, a limiting plate 101d disposed on the outer wall of the fixing rod 101c, and a limiting groove 101e disposed on the limiting plate 101d.

[0041] The mounting plate 101d is used to facilitate the insertion of the fixing rod 101c into the fixing shell 101a to fix the fixing shell 101a. The limiting groove 101e on the limiting plate 101d is used to lock and unlock the fixing rod 101c.

[0042] Preferably, by expanding and contracting the limiting plate 101d outward, the limiting groove 101e on the limiting plate 101d engages with the fixing rod 101c, so that the fixing rod 101c is restricted and cannot be pulled out to complete the installation and fixing of the fixing shell 101a.

[0043] Furthermore, the expansion assembly 102 includes a first slide groove 102a disposed inside the fixed shell 101a, a first slider 102b disposed inside the first slide groove 102a, an expansion plate 102c disposed on the first slider 102b, a T-shaped slide groove 102d disposed on the expansion plate 102c, a T-shaped slider 102e disposed inside the T-shaped slide groove 102d, and a movable plate 102f disposed on the T-shaped slider 102e. The inner end of the limiting plate 101d is fixedly connected to the outer side of the corresponding expansion plate 102c.

[0044] The first slider 102b is used to cooperate with the first slide groove 102a, so that the expansion plate 102c can expand and contract inside the fixed shell 101a. The T-shaped slider 102e and the T-shaped slide groove 102d are set to press the expansion plate 102c when the moving plate 102f moves upward, so that it expands outward. When the moving plate 102f moves downward, it drives the expansion plate 102c to contract, thereby completing the locking and unlocking of the fixed rod 101c.

[0045] Preferably, by controlling the up and down movement of the moving plate 102f, the T-shaped slider 102e on the moving plate 102f drives the expansion plate 102c to expand and contract through the T-shaped groove 102d on the expansion plate 102c, which in turn drives the limiting plate 101d to move, so that the limiting groove 101e engages with the fixing rod 101c, thus completing the fixing of the fixing shell 101a.

[0046] Furthermore, the moving assembly 103 includes a diagonal rod 103a disposed at the bottom end of the moving plate 102f, a moving block 103b disposed on the diagonal rod 103a, and a first threaded rod 103c disposed on the moving block 103b.

[0047] Preferably, the movable block 103b is used to cooperate with the rotation of the first threaded rod 103c and move on the outer wall of the first threaded rod 103c, thereby driving the movable plate 102f to move up and down through the inclined rod 103a, so that the movable plate 102f drives the expansion component 102 to achieve the effect of expansion and contraction.

[0048] Furthermore, the control assembly 201 includes a rotating rod 201a disposed on the fixed housing 101a, a sprocket 201b disposed on the rotating rod 201a, a chain 201c disposed on the sprocket 201b, a second threaded rod 201d disposed on the rotating rod 201a, and a control plate 201e disposed on the second threaded rod 201d.

[0049] Preferably, the chain 201c is used to drive the rotating rod 201a to rotate via the sprocket 201b, thereby enabling the sliding component 202 to drive the filling component 204 to move, so that the filling component 204 drives the first threaded rod 103c and the second threaded rod 201d to rotate, thereby controlling the moving component 103.

[0050] Furthermore, the sliding assembly 202 includes a second slide groove 202a disposed on the outer wall of the rotating rod 201a, a second slider 202b disposed inside the second slide groove 202a, a control ring 202c disposed on the second slider 202b, and a connecting rod 202d disposed on the control ring 202c.

[0051] The second slide 202a is used to limit the movement trajectory of the second slider 202b, the second slider 202b is used to drive the control ring 202c to move on the outer wall of the rotating rod 201a, and the connecting rod 202d is used to connect the control ring 202c and the adjusting component 203, so that the adjusting component 203 can control its movement.

[0052] Preferably, by controlling the operation of the adjustment component 203, the connecting rod 202d is moved by the electric filling component 204, which in turn causes the filling component 204 to rotate the first threaded rod 103c, and the moving block 103b is moved up and down by the inclined rod 103a.

[0053] In summary: By adjusting component 203, the connecting rod 202d is controlled to move left and right, thereby causing the sliding component 202 to drive the filling component 204 to approach the first threaded rod 103c, causing the first threaded rod to rotate. The rotation of the first threaded rod 103c causes the moving block 103b to move left and right. The inclined rod 103a drives the moving plate 102f to move up and down, thereby causing the T-shaped slider 102e to drive the expansion plate 102c to expand and contract through the T-shaped groove 102d. This causes the limiting plate 101d to move, completing the locking and unlocking of the limiting groove 101e on the fixed rod 101c, achieving the effect of easy installation and disassembly.

[0054] Example 3, referring to Figures 4-8 The third embodiment of the present invention includes: an adjustment assembly 203 comprising a storage groove 203a disposed inside a fixed housing 101a, a rotating threaded rod 203b disposed inside the storage groove 203a, a threaded sleeve 203c disposed on the rotating threaded rod 203b, a connecting rod 203d disposed on the threaded sleeve 203c, an adjustment rod 203e disposed on the fixed housing 101a, and a bevel gear 203f disposed on the adjustment rod 203e and the rotating threaded rod 203b.

[0055] Among them, the adjusting rod 203e is used to drive the bevel gear 203f to rotate, the rotating threaded rod 203b drives the threaded sleeve 203c to move left and right through the rotation of the body, and the connecting rod 203d is used to connect the threaded sleeve 203c and the connecting rod 202d, so that when the threaded sleeve 203c moves, it drives the connecting rod 202d to move left and right.

[0056] Preferably, the rotation of the adjusting rod 203e causes the bevel gear 203f to drive the rotating threaded rod 203b to rotate, thereby enabling the threaded sleeve 203c to move left and right, which in turn causes the connecting rod 203d to drive the connecting rod 202d to move, thereby driving the sliding component 202 to move left and right.

[0057] Furthermore, the filling assembly 204 includes a movable ring 204a disposed on the control ring 202c, a filling groove 204b disposed inside the movable ring 204a, a filling rod 204c disposed inside the filling groove 204b, a filling spring 204d disposed on the filling rod 204c, and a hexagonal groove 204e disposed on the first threaded rod 103c and the second threaded rod 201d.

[0058] The movable ring 204a is used to move left and right together with the sliding component 202. The filling groove 204b is used to place the filling rod 204c and the filling spring 204d. The filling spring 204d is used to push the filling rod 204c so that the filling rod 204c is always at the outer end of the filling groove 204b. The hexagonal groove 204e is used to cooperate with the filling rod 204c to drive the first threaded rod 103c and the second threaded rod 201d to rotate.

[0059] Preferably, the sliding component 202 drives the moving ring 204a to move left and right. When the filling rod 204c and the hexagonal groove 204e come into contact, the filling rod 204c within the range of the hexagonal groove 204e is unaffected, while the one outside the range is squeezed by the outer wall of the threaded rod. This causes the rotating rod 201a to rotate through the cooperation between the filling rod 204c and the hexagonal groove 204e on the moving ring 204a, thus enabling the lifting component 301 and the moving component 103 to operate.

[0060] Furthermore, the lifting assembly 301 includes a movable groove 301a disposed on the fixed housing 101a, a movable frame 301b disposed on the movable groove 301a, an inclined groove 301c disposed on the movable frame 301b, a control rod 301d disposed inside the inclined groove 301c, a lifting plate 301e disposed on the control rod 301d, and a lifting slide rod 301f disposed at the bottom end of the lifting plate 301e.

[0061] The movable groove 301a is used to restrict the movement of the movable frame 301b, the inclined groove 301c is used to cooperate with the control rod 301d to drive the lifting plate 301e to move up and down, and the lifting slide bar 301f ensures that the lifting plate 301e is always in a balanced state when it moves up and down.

[0062] Preferably, the second threaded rod 201d drives the control plate 201e to move left and right, so that the moving frame 301b moves inside the moving groove 301a, and the inclined groove 301c moves together with the moving frame 301b, so that the control rod 301d drives the lifting plate 301e to move up and down, so that the limiting component 302 operates.

[0063] Furthermore, the limiting component 302 includes a limiting plate 302a disposed on the lifting plate 301e, a rotating plate 302b disposed at the bottom of the fixed shell 101a, a limiting groove 302c disposed on the rotating plate 302b, and a hanging hole 302d disposed on the rotating plate 302b.

[0064] The limiting plate 302a is configured to cooperate with the limiting groove 302c on the rotating plate 302b to limit the rotation plate 302b, thereby fixing the direction of the lifting hole 302d.

[0065] Preferably, the bottom end of the limiting plate 302a is arc-shaped and matches the limiting groove 302c. By controlling the left and right movement of the moving frame 301b, the inclined groove 301c drives the control rod 301d to move up and down, thus completing the lifting control of the lifting plate 301e. When the lifting plate 301e rises, the limiting plate 302a disengages from the limiting groove 302c, allowing the rotating plate 302b to rotate freely. When the lifting plate 301e descends, it engages with the limiting groove 302c, preventing the rotating plate 302b from rotating, thus completing the adjustment of the direction of the lifting hole 302d.

[0066] In summary: By rotating the adjusting rod 203e, the bevel gear 203f drives the rotating threaded rod 203b to rotate, which in turn causes the threaded sleeve 203c to drive the connecting rod 203d to move left and right. This controls the sliding component 202 to move left and right on the outer wall of the rotating rod 201a, allowing the filling rod 204c and the hexagonal groove 204e to engage. Then, by controlling the rotation of the rotating rod 201a, the threaded rod rotates, causing the moving frame 301b to move. The inclined groove 301c allows the limiting plate 302a on the lifting plate 301e to limit the rotating plate 302b, thus achieving the effect of easy adjustment of the direction of the lifting hole 302d.

[0067] The remaining structure is the same as that in Example 2.

[0068] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0069] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hoisting device for the arch of an underground factory building, characterized in that: include, The fixing component (100) includes a fixing component (101), an expansion component (102) disposed on the fixing component (101), and a moving component (103) disposed on the expansion component (102); The control component (200) includes a control component (201) disposed on the fixed component (101), a sliding component (202) disposed on the control component (201), an adjustment component (203) disposed on the sliding component (202), and a filling component (204) disposed on the adjustment component (203); as well as, The limiting component (300) includes a lifting component (301) disposed on the control component (201) and a limiting component (302) disposed on the lifting component (301).

2. The hoisting device for the roof arch of an underground factory building according to claim 1, characterized in that: The fixing component (101) includes a fixing shell (101a), a mounting hole (101b) disposed on the fixing shell (101a), a fixing rod (101c) disposed inside the mounting hole (101b), a limiting plate (101d) disposed on the outer wall of the fixing rod (101c), and a limiting groove (101e) disposed on the limiting plate (101d).

3. The hoisting device for the roof arch of an underground factory building according to claim 2, characterized in that: The expansion assembly (102) includes a first slide groove (102a) disposed inside the fixed shell (101a), a first slider (102b) disposed inside the first slide groove (102a), an expansion plate (102c) disposed on the first slider (102b), a T-shaped slide groove (102d) disposed on the expansion plate (102c), a T-shaped slider (102e) disposed inside the T-shaped slide groove (102d), and a movable plate (102f) disposed on the T-shaped slider (102e). The inner end of the limiting plate (101d) is fixedly connected to the outer side of the corresponding expansion plate (102c).

4. The hoisting device for the roof arch of an underground factory building according to claim 3, characterized in that: The moving assembly (103) includes a diagonal rod (103a) disposed at the bottom end of the moving plate (102f), a moving block (103b) disposed on the diagonal rod (103a), and a first threaded rod (103c) disposed on the moving block (103b).

5. The hoisting device for the roof arch of an underground factory building according to claim 4, characterized in that: The control assembly (201) includes a rotating rod (201a) disposed on the fixed housing (101a), a sprocket (201b) disposed on the rotating rod (201a), a chain (201c) disposed on the sprocket (201b), a second threaded rod (201d) disposed on the rotating rod (201a), and a control plate (201e) disposed on the second threaded rod (201d).

6. The hoisting device for the roof arch of an underground factory building according to claim 5, characterized in that: The sliding assembly (202) includes a second slide groove (202a) disposed on the outer wall of the rotating rod (201a), a second slider (202b) disposed inside the second slide groove (202a), a control ring (202c) disposed on the second slider (202b), and a connecting rod (202d) disposed on the control ring (202c).

7. The hoisting device for the roof arch of an underground factory building according to claim 6, characterized in that: The adjustment assembly (203) includes a storage slot (203a) disposed inside the fixed housing (101a), a rotating threaded rod (203b) disposed inside the storage slot (203a), a threaded sleeve (203c) disposed on the rotating threaded rod (203b), a connecting rod (203d) disposed on the threaded sleeve (203c), an adjustment rod (203e) disposed on the fixed housing (101a), and a bevel gear (203f) disposed on the adjustment rod (203e) and the rotating threaded rod (203b).

8. The hoisting device for the roof arch of an underground factory building according to claim 7, characterized in that: The filling assembly (204) includes a movable ring (204a) disposed on the control ring (202c), a filling groove (204b) disposed inside the movable ring (204a), a filling rod (204c) disposed inside the filling groove (204b), a filling spring (204d) disposed on the filling rod (204c), and a hexagonal groove (204e) disposed on the first threaded rod (103c) and the second threaded rod (201d).

9. The hoisting device for the roof arch of an underground factory building according to claim 8, characterized in that: The lifting assembly (301) includes a moving groove (301a) disposed on the fixed housing (101a), a moving frame (301b) disposed on the moving groove (301a), an inclined groove (301c) disposed on the moving frame (301b), a control rod (301d) disposed inside the inclined groove (301c), a lifting plate (301e) disposed on the control rod (301d), and a lifting slide rod (301f) disposed at the bottom end of the lifting plate (301e).

10. The hoisting device for the roof arch of an underground factory building according to claim 9, characterized in that: The limiting component (302) includes a limiting plate (302a) disposed on the lifting plate (301e), a rotating plate (302b) disposed at the bottom of the fixed shell (101a), a limiting groove (302c) disposed on the rotating plate (302b), and a hanging hole (302d) disposed on the rotating plate (302b).