Engineering construction vertical shaft

Abstract

The invention discloses an engineering construction vertical shaft which comprises a vertical shaft body. The rainproof assembly comprises a rainproof cover, the rainproof cover can be arranged above the well mouth of the vertical shaft body in a vertically adjustable mode, and the vertical projection of the rainproof cover completely covers the well mouth of the vertical shaft body; the anti-smashing assembly comprises a second adjusting mechanism and an anti-smashing part, the second adjusting mechanism is arranged on the vertical shaft body, the anti-smashing part is located on the inner side of the vertical shaft body and connected to the second adjusting mechanism, the second adjusting mechanism is configured to be capable of adjusting the height of the anti-smashing part, and the anti-smashing part is configured to be capable of intercepting falling objects falling from the upper portion of the anti-smashing part. By arranging the rainproof cover and the anti-smashing part which can be independently adjusted, a dynamic and cooperative protection system is constructed, and the rainproof cover and the anti-smashing part jointly achieve dynamic and comprehensive protection on the internal space of the vertical shaft.

Description

Technical Field

[0001] This application relates to the field of shaft technology, and in particular to an engineering construction shaft. Background Technology

[0002] In the field of construction engineering, shafts are critical underground engineering structures, and the safety and environmental protection of their shaft opening area are of paramount importance. Currently, the most known protective measures for shafts are to install fixed rain shelters at the shaft opening.

[0003] This type of static protection solution has significant inherent drawbacks. First, while fixed rain shelters provide basic rain protection, their permanent structure severely restricts equipment hoisting and material transportation operations at the shaft opening. To meet construction needs, they often need to be temporarily dismantled or modified. This not only involves cumbersome procedures and significantly impacts construction efficiency, but also completely exposes the shaft opening during dismantling, resulting in a break in the protective function and exposing personnel and equipment to the risk of rain and accidental falling objects. Second, rain shelters have very limited effectiveness in intercepting falling objects, and cannot intercept objects lower than the shelter.

[0004] Therefore, existing technologies struggle to provide a solution that can dynamically adapt to the construction process and provide comprehensive protection while ensuring the continuity and efficiency of vertical operations. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an engineering construction shaft that can achieve dynamic and comprehensive protection of the internal space of the shaft.

[0006] The engineering construction shaft according to the embodiments of this application includes: Shaft body; A rainproof component includes a rain cover, which is adjustable up and down and positioned above the wellhead of the shaft body, and the vertical projection of the rain cover completely covers the wellhead of the shaft body. The anti-smashing component includes a second adjustment mechanism and an anti-smashing part. The second adjustment mechanism is disposed on the shaft body, and the anti-smashing part is located inside the shaft body and connected to the second adjustment mechanism. The second adjustment mechanism is configured to adjust the height of the anti-smashing part, and the anti-smashing part is configured to intercept falling objects falling from above the anti-smashing part.

[0007] The engineering construction shaft according to the embodiments of this application has at least the following beneficial effects: By installing independently adjustable rain covers and impact protection sections, a dynamic and collaborative protection system is constructed. The adjustability of the rain covers overcomes the drawbacks of fixed protective structures that require dismantling for hoisting operations or transporting long components. Simply raising them creates working space, ensuring continuous and efficient construction, and they can be quickly lowered for immediate rain protection when needed. The impact protection sections effectively intercept falling objects from above, solving the problem that fixed rain shelters cannot intercept falling objects lower than their structure. Furthermore, the height adjustability of the impact protection sections fundamentally changes the safety protection mode within the shaft. They can adapt to changes in the working face, ensuring an optimal safe distance between the impact protection section and the working face, thus achieving "tracking" protection. This ensures that personnel and equipment are effectively protected by the impact protection section at any working depth. The rain covers and impact protection sections work together to achieve dynamic and comprehensive protection of the shaft's interior space.

[0008] According to some embodiments of this application, the rainproof component further includes a first adjustment mechanism, the first adjustment mechanism comprising: The first mounting part is fixed to the shaft body; The first movable part is fixed to the rain cover and can slide up and down to be connected to the first mounting part; The first locking structure includes a first locking part and a plurality of first locking holes. The first locking part is disposed on one of the first mounting part and the first movable part, and the plurality of first locking holes are arranged in the vertical direction on the other. The first locking part is configured to be selectively inserted into any of the first locking holes to lock the first movable part at a corresponding height.

[0009] According to some embodiments of this application, the first movable part is a hollow tube and sleeved on the first mounting part, the first locking part is horizontally slidably disposed on the first mounting part, and the first locking structure further includes: A first elastic portion is disposed between the first mounting portion and the first locking portion and is configured to apply an elastic force toward the first locking portion to the first locking portion. The first locking hole extends to the outer wall of the first movable part to expose the first locking part.

[0010] According to some embodiments of this application, the upper end of the first mounting part defines a mounting cavity, a horizontally extending guide rod is provided in the mounting cavity, the first locking part is slidably sleeved on the guide rod, and the first elastic part is configured as a first compression spring and sleeved on the guide rod; The first locking part can abut against the inner wall of the mounting cavity and be inserted into the first locking hole under the action of the first elastic part.

[0011] According to some embodiments of this application, the first locking part includes: An insert block is configured to be inserted into the first locking hole. The lower end of the insert block is provided with a slope. The slope is configured such that when the first movable part moves upward relative to the first mounting part, the lower edge of the first locking hole can abut against the slope, so that the first locking part retracts relative to the mounting cavity.

[0012] According to some embodiments of this application, the guide rod is provided with an external thread, and the first mounting part is provided with a mounting hole and a threaded hole on opposite sides of the mounting cavity, respectively. The mounting hole is provided through the first mounting part, and the guide rod passes through the mounting hole and the threaded hole and is threadedly engaged with the threaded hole.

[0013] According to some embodiments of this application, multiple second adjustment mechanisms are provided, and the multiple second adjustment mechanisms are arranged circumferentially along the shaft body. The second adjustment mechanism includes: The second mounting part is fixed to the inner wall of the shaft and extends vertically; The second movable part is slidably connected to the second mounting part. A lifting device is connected to the second movable part and is used to control the up and down movement of the second movable part; The anti-smashing part is connected between the second movable parts of the plurality of second adjustment mechanisms.

[0014] According to some embodiments of this application, the lifting device includes: The base frame is fixed to the upper end of the shaft body; A take-up roller is rotatably mounted on the base frame; A winding rope, one end of which is wound around the winding roller, and the other end of which is connected to the second movable part; The take-up roller is configured to be fixed at multiple set angles relative to the base frame.

[0015] According to some embodiments of this application, the winding roller is located outside the wellhead of the shaft body, and the lifting device further includes: A redirecting roller is rotatably mounted on the base frame. The redirecting roller is distributed parallel to the winding roller and is located within the vertical projection range of the wellhead of the shaft body. The take-up rope is configured to extend downward from the take-up roller, pass over the upper side of the redirecting roller, and connect to the second movable part.

[0016] According to some embodiments of this application, the anti-smashing part is made of a flexible material, and the circumferential edge of the anti-smashing part is connected between the second movable parts of a plurality of second adjustment mechanisms to unfold and form an interception surface.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the external structure of the construction shaft according to an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the construction shaft in an embodiment of this application; Figure 3 This is a schematic diagram of the external structure of the first adjusting mechanism according to an embodiment of this application; Figure 4 This is a schematic diagram of the installation structure of the first locking part according to an embodiment of this application; Figure 5 yes Figure 4 An exploded view of the installation structure; Figure 6 This is a schematic diagram of the anti-smashing component according to an embodiment of this application; Figure 7 This is a schematic diagram of the lifting device according to an embodiment of this application; Figure 8 This is an exploded view of the installation structure of the second locking part according to an embodiment of this application; Figure 9 This is a cross-sectional schematic diagram of the lifting device according to an embodiment of this application.

[0019] Icon labels: Shaft body 100; Rainproof component 200, rainproof cover 210, first adjustment mechanism 220, first mounting part 230, guide rod 231, mounting hole 232, threaded hole 233, first movable part 240, first locking part 250, insert block 251, inclined surface 252, base 253, first locking hole 260, first elastic part 270; Anti-smashing component 300, second adjustment mechanism 310, anti-smashing part 320, connecting rope 321, second mounting part 330, second movable part 340, first connecting ring 341, second connecting ring 342, lifting device 350, base frame 351, winding roller 352, winding rope 353, redirecting roller 354, turntable 355, handle 356, second locking hole 357, second locking part 360, second elastic part 370, pull plate 380, limit nut 390; Staircase 400. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] In the description of this application, "multiple" refers to two or more. The use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or the order in which the technical features are indicated.

[0023] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1 , Figure 2 and Figure 6 As shown, an engineering construction shaft according to one embodiment of this application includes a shaft body 100, a rainproof component 200, and an anti-smashing component 300.

[0025] The shaft body 100 can be constructed from concrete and steel structures such as steel bars.

[0026] The rainproof component 200 includes a rainproof cover 210, which is adjustable up and down and is positioned above the well opening of the shaft body 100, with the vertical projection of the rainproof cover 210 completely covering the well opening of the shaft body 100.

[0027] The anti-smashing component 300 includes a second adjustment mechanism 310 and an anti-smashing part 320. The second adjustment mechanism 310 is disposed on the shaft body 100, and the anti-smashing part 320 is located inside the shaft body 100 and connected to the second adjustment mechanism 310. The second adjustment mechanism 310 is configured to adjust the height of the anti-smashing part 320, and the anti-smashing part 320 is configured to intercept falling objects falling from above the anti-smashing part 320.

[0028] The engineering construction shaft provided in this embodiment constructs a dynamic and coordinated protection system by setting up an independently adjustable rain cover 210 and an anti-impact part 320. The adjustable rain cover 210 overcomes the drawbacks of fixed protective structures that require dismantling for hoisting operations or transporting long components. It can be raised to create working space, ensuring the continuity and efficiency of construction, and can be quickly lowered for immediate rain protection when needed. The anti-fall section 320 effectively intercepts falling objects from above, solving the problem that fixed rain shelters cannot intercept falling objects below their structure. In addition, the height adjustability of the anti-fall section 320 fundamentally changes the safety protection mode inside the shaft. It can change with the underground working face, ensuring that the anti-fall section 320 always maintains an optimal safe distance from the working face, thus achieving "tracking" protection and ensuring that personnel and equipment are effectively protected by the anti-fall section 320 at any working depth. The rain cover 210 and the anti-fall section 320 work together to achieve dynamic and comprehensive protection of the internal space of the shaft.

[0029] In some embodiments of this application, the rain cover 210 may employ a combined structure of a frame and an outer skin. Specifically, the frame, serving as the load-bearing main body of the rain cover 210, may be constructed by welding or bolting together several lightweight metal profiles (such as aluminum alloy). The outer skin, serving as the waterproof functional layer of the rain cover 210, is fixedly attached to the upper surface of the frame. This outer skin is composed of a continuous waterproof material, with its seams sealed to ensure that rainwater is effectively blocked and diverted along a preset slope; the waterproof material may be metal sheet or polymer roll material.

[0030] Reference Figure 2 and Figure 3 As shown, in some embodiments of this application, the rainproof component 200 further includes a first adjustment mechanism 220, which includes a first mounting portion 230, a first movable portion 240, and a first locking structure. The first mounting portion 230 is fixed to the upper end of the shaft body 100; the first movable portion 240 is fixed to the lower end of the rainproof cover 210, and the first movable portion 240 is slidably connected to the first mounting portion 230, so that the rainproof cover 210 can move up and down relative to the first mounting portion 230; the first locking structure includes a first locking portion 250 and a plurality of first locking holes 260. The first locking portion 250 is disposed on one of the first mounting portion 230 and the first movable portion 240, and the plurality of first locking holes 260 are arranged vertically on the other. The first locking portion 250 is configured to selectively insert into any of the first locking holes 260 to lock the first movable portion 240 at a corresponding height.

[0031] In this embodiment, the rain cover 210 is reliably locked at multiple set height positions by selectively engaging the first locking part 250 with the first locking holes 260 at different heights. This locking method has a simple structure and effectively solves the problem that fixed rain shelters cannot flexibly adjust their height.

[0032] Reference Figure 1 and Figure 2 As shown, in some embodiments of this application, multiple first adjustment mechanisms 220 are provided and arranged circumferentially along the shaft body 100.

[0033] In some embodiments of this application, the first locking part 250 can be configured as a screw, which is threaded onto one of the first mounting part 230 and the first movable part 240. By screwing the screw, it can be engaged or disengaged from the first locking hole 260, resulting in a simple and stable structure. Of course, other structural forms can also be adopted.

[0034] For example, refer to Figure 3 and Figure 4 As shown, in some embodiments of this application, the first movable part 240 is a hollow tube and sleeved on the first mounting part 230, the first locking part 250 is horizontally slidably disposed on the first mounting part 230, the first locking hole 260 is disposed on the first movable part 240, and the first locking structure further includes a first elastic part 270, which is disposed between the first mounting part 230 and the first locking part 250. The first elastic part 270 is configured to apply an elastic force toward the first locking hole 260 to the first locking part 250 so that the first locking part 250 can be inserted into the first locking hole 260. The first locking hole 260 extends to the outer wall of the first movable part 240 to expose the first locking part 250, thereby facilitating the operator to apply force to the first locking part 250 to make it retract from the first locking hole 260.

[0035] In this embodiment, by setting the first movable part 240 as a hollow tube and sleeved on the first mounting part 230, a directional sliding function can be realized; by horizontally sliding the first locking part 250 on the first mounting part 230 and providing a first elastic part 270 that can apply an elastic force toward the first locking hole 260, an automatic reset and continuous locking function can be realized. Furthermore, by extending the first locking hole 260 to the outer wall of the first movable part 240, the first locking part 250 is directly exposed in the operating field of vision, realizing the visualization of the locking state and improving the convenience of unlocking operation.

[0036] In some embodiments of this application, the first mounting part 230 can be fixed to the shaft body 100 by pouring concrete, or the first mounting part 230 can be fixed to the shaft body 100 by pre-embedding anchor bolts when constructing the shaft body 100.

[0037] Reference Figure 4 and Figure 5 As shown, in some embodiments of this application, the upper end of the first mounting part 230 defines a mounting cavity, a horizontally extending guide rod 231 is provided in the mounting cavity, the first locking part 250 is slidably sleeved on the guide rod 231, the first elastic part 270 is configured as a first compression spring and sleeved on the guide rod 231, and the two ends of the first compression spring abut against the first locking part 250 and the inner wall of the mounting cavity, respectively; wherein, the first locking part 250 can abut against the inner wall of the mounting cavity and insert into the first locking hole 260 under the action of the first elastic part 270.

[0038] In this embodiment, by setting the guide rod 231, the first locking part 250 slides along the guide rod 231, ensuring the accuracy and stability of its horizontal movement and effectively preventing skew and jamming; the first elastic part 270 is specifically set as a first compression spring and sleeved on the guide rod 231, which can stably and reliably apply an elastic force pointing towards the first locking hole 260 to the first locking part 250.

[0039] In some embodiments of this application, the first mounting part 230 is configured as a hollow tubular structure.

[0040] Reference Figure 4 and Figure 5 As shown, in some embodiments of this application, the first locking part 250 includes a base 253 and an insert 251. The base 253 is slidably sleeved on the guide rod 231 and is used to abut against the first elastic part 270. The insert 251 is fixed to the side of the base 253 away from the first elastic part 270. The insert 251 is configured to be inserted into the first locking hole 260. The lower end of the insert 251 is provided with a slope 252. The slope 252 is configured such that when the first movable part 240 moves upward relative to the first mounting part 230, the lower edge of the first locking hole 260 can abut against the slope 252, so that the first locking part 250 retracts relative to the mounting cavity.

[0041] In this embodiment, by providing an inclined surface 252 at the lower end of the insert block 251, when the first movable part 240 moves upward relative to the first mounting part 230, it can directly contact the inclined surface 252 through the lower edge of the first locking hole 260, automatically converting the vertical movement into an unlocking force that drives the first locking part 250 to retract horizontally, thus realizing one-way automatic unlocking during the lifting process of the rain cover 210 and improving the convenience of operation.

[0042] Reference Figure 4 and Figure 5As shown, in some embodiments of this application, the upper end of the mounting cavity is open, the guide rod 231 is provided with external threads, the first mounting part 230 is provided with mounting holes 232 and threaded holes 233 on opposite sides of the mounting cavity, the mounting holes 232 are provided through the first mounting part 230, the guide rod 231 passes through the mounting holes 232 and the threaded holes 233, and is threadedly engaged with the threaded holes 233.

[0043] In this embodiment, an opening at the upper end of the mounting cavity provides a direct operating channel for the assembly and maintenance of internal components, improving assembly convenience and maintainability. Furthermore, the detachable guide rod 231 facilitates the assembly and disassembly of the first locking part 250 and the first elastic part 270. Specifically, during assembly, the first locking part 250 and the first elastic part 270 are first placed inside the mounting cavity, and then the guide rod 231 is inserted, passing through the first locking part 250 and the first elastic part 270. Disassembly is performed by reversing the operation.

[0044] Reference Figure 5 As shown, in some embodiments of this application, two guide rods 231 are arranged side by side to improve structural stability.

[0045] Reference Figure 5 As shown, in some embodiments of this application, the first mounting part 230 is provided with a clearance hole on the inner wall of the mounting cavity for the insertion block 251 to pass through.

[0046] Reference Figure 4 As shown, in some embodiments of this application, the upper end face of the insert 251 is horizontal to form a stable support for the first movable part 240.

[0047] In some embodiments of this application, a threaded cylinder may be provided on the inner wall of the mounting cavity to form a threaded hole 233.

[0048] Reference Figure 1 , Figure 2 and Figure 6 As shown, in some embodiments of this application, multiple second adjustment mechanisms 310 are provided, arranged circumferentially along the shaft body 100. Each second adjustment mechanism 310 includes a second mounting portion 330, a second movable portion 340, and a lifting device 350. The second mounting portion 330 is fixed to the inner wall of the shaft and extends vertically; the second movable portion 340 is slidably connected to the second mounting portion 330; the lifting device 350 is drively connected to the second movable portion 340 and is used to control the vertical movement of the second movable portion 340; wherein, the anti-smashing portion 320 is connected between the second movable portions 340 of the multiple second adjustment mechanisms 310.

[0049] In this embodiment, by setting multiple second adjustment mechanisms 310 arranged circumferentially along the vertical shaft, a stable and uniform support structure is provided for the anti-smashing part 320. Each second adjustment mechanism 310 converts the transmission of the lifting device 350 into the vertical displacement of the anti-smashing part 320 through a second mounting part 330 fixed to the shaft wall and a second movable part 340 that can slide up and down relative to it. By connecting the anti-smashing part 320 between all the second movable parts 340, a rigid or flexible interception surface driven by multiple points synchronously is formed, which not only ensures sufficient protection area, but also effectively prevents the anti-smashing part 320 from deflecting, shaking or getting stuck on one side during the lifting process, thereby achieving stable lifting of the anti-smashing part 320.

[0050] Reference Figures 6 to 8 As shown, in some embodiments of this application, the lifting device 350 includes a base frame 351, a winding roller 352, and a winding rope 353. The base frame 351 is fixed to the upper end of the shaft body 100; the winding roller 352 is rotatably mounted on the base frame 351, with its rotation axis extending horizontally; one end of the winding rope 353 is wound around the winding roller 352, and the other end is connected to the second movable part 340; wherein, the winding roller 352 is configured to be fixed relative to the base frame 351 at multiple set angles. By winding the winding rope 353 with the winding roller 352, the anti-smashing part 320 can be raised, and by releasing the winding rope 353, the anti-smashing part 320 can be lowered under its own weight and the weight of the second movable part 340.

[0051] In this embodiment, the height of the anti-impact part 320 is adjusted by winding and unwinding the take-up rope 353 using the take-up roller 352. Furthermore, the device utilizes the weight of the anti-impact part 320 and the second movable part 340 to achieve descent, eliminating the need for a complex descent drive mechanism, thus simplifying the system structure and reducing costs. By configuring the take-up roller 352 to be fixed at multiple set angles, the anti-impact part 320 can stably remain at different height positions, ensuring the reliability of the protection.

[0052] Reference Figure 2 , Figure 6 and Figure 7 As shown, in some embodiments of this application, the take-up roller 352 is located outside the wellhead of the shaft body 100, and the lifting device 350 also includes a redirecting roller 354, which is rotatably mounted on the base frame 351. The redirecting roller 354 is distributed parallel to the take-up roller 352 and is located within the vertical projection range of the wellhead of the shaft body 100. The take-up rope 353 is configured to extend downward from the take-up roller 352, pass over the upper side of the redirecting roller 354, and connect to the second movable part 340.

[0053] In this embodiment, by placing the take-up roller 352 outside the wellhead and arranging the redirecting roller 354 directly above the wellhead, it not only facilitates the operation and maintenance of the take-up roller 352 but also reduces interference with the wellhead working space. The take-up rope 353, through its path design of winding around the upper side of the redirecting roller 354 and then connecting downward to the second movable part 340, converts the rotational winding motion provided by the take-up roller 352 into the vertical lifting motion required inside the well. At the same time, the redirecting roller 354 avoids direct friction between the take-up rope 353 and the edge of the wellhead, significantly extending the service life of the take-up rope 353. This layout, while ensuring transmission efficiency, optimizes the spatial distribution of the equipment and improves operational reliability and safety.

[0054] In some embodiments of this application, the redirecting roller 354 is also rotatably mounted on the base frame 351 to reduce friction with the winding rope 353.

[0055] Reference Figure 6 As shown, in some embodiments of this application, the second mounting portion 330 is configured as a wedge-shaped guide rail structure, and the second movable portion 340 is configured as a wedge-shaped slider structure. This not only enables the sliding engagement between the two but also prevents the second movable portion 340 from disengaging from the second mounting portion 330. Furthermore, the second mounting portion 330 extends from the bottom of the well to the wellhead.

[0056] Reference Figure 6 As shown, in some embodiments of this application, a first connecting ring 341 is provided on the second movable part 340 for binding the winding rope 353.

[0057] In some embodiments of this application, when the shaft depth is large, the winding roller 352 can be driven by a motor to reduce the labor intensity of the operator. Of course, it can also be driven manually.

[0058] For example, refer to Figures 7 to 9As shown, in some embodiments of this application, one end of the take-up roller 352 is coaxially fixedly connected to a turntable 355, and a handle 356 is eccentrically disposed on the turntable 355. Rotation of the handle 356 allows the take-up roller 352 to rotate. Furthermore, to fix the take-up roller 352 at multiple set angles, a second locking structure is provided between the base frame 351 and the turntable 355. The second locking structure includes a second locking part 360, a second elastic part 370, and multiple second locking holes 357, which are disposed on the base frame 351. Furthermore, multiple second locking holes 357 and second locking portions 360 are circumferentially distributed around the center line of the take-up roller 352. The second locking portion 360 is slidably connected to the turntable 355 along the axial direction of the take-up roller 352 and can selectively insert into any of the second locking holes 357 to achieve angle locking of the turntable 355. A second elastic portion 370 is disposed between the turntable 355 and the second locking portion 360 to apply an elastic force toward the second locking hole 357 to keep the second locking portion 360 inserted into the second locking hole 357. When it is necessary to rotate and adjust the take-up roller 352, first disengage the second locking portion 360 from the second locking hole 357, and then rotate the turntable 355. When the anti-smashing portion 320 reaches the specified height, release the second locking portion 360 so that the second locking portion 360 re-inserts into the second locking hole 357.

[0059] Furthermore, the handle 356 is provided with a receiving cavity, which is opened on the side facing the second locking hole 357. A through hole is provided on the inner wall of the side facing away from the second locking hole 357. The second locking part 360 is configured as a stepped shaft and has a stepped surface. The second locking part 360 is slidably disposed in the receiving cavity and passes through the through hole. The second elastic part 370 is configured as a second compression spring. The second compression spring is sleeved on the second locking part 360, and its two ends respectively abut against the stepped surface of the second locking part 360 and the inner wall of the receiving cavity with the through hole. A pull plate 380 is sleeved on the side of the second locking part 360 facing away from the second compression spring, and a limit nut 390 is threadedly connected to the side of the pull plate 380 facing away from the handle 356. By pulling the pull plate 380, the second locking part 360 can be separated from the second locking hole 357.

[0060] Reference Figure 6 As shown, in some embodiments of this application, the anti-smashing part 320 is made of a flexible material, and the circumferential edge of the anti-smashing part 320 is connected between the second movable parts 340 of a plurality of second adjustment mechanisms 310 to unfold and form an interception surface.

[0061] In this embodiment, a protective structure with excellent adaptability and buffering performance is constructed by using a flexible material to make the anti-impact part 320 and connecting its circumferential edge between multiple circumferentially distributed second movable parts 340. This flexible anti-impact part 320 can deform appropriately when naturally drooping and under load, effectively catching falling objects and preventing them from bouncing and splashing, while also evenly distributing the impact load to multiple second adjusting mechanisms 310, significantly improving the reliability and safety of the protection.

[0062] In some embodiments of this application, the anti-smashing part 320 may be made of high-strength polymer fiber woven mesh, rubber-based composite fabric, or flexible steel wire mesh, etc.

[0063] Reference Figure 6 As shown in some embodiments of this application, the circumferential edge of the anti-smashing part 320 is provided with a plurality of connecting ropes 321, each corresponding to a second movable part 340. A second connecting ring 342 is provided on the second movable part 340 for binding the connecting ropes 321, facilitating both connection and disassembly. The connecting ropes 321 can be made of steel wire rope or nylon rope.

[0064] Reference Figure 1 As shown, in some embodiments of this application, the inner wall of the shaft body 100 is also fixedly provided with vertically distributed stairs 400. The stairs 400 can be made of metal and locked to the inner wall of the shaft body 100 by bolts, or fixed to the inner wall of the shaft body 100 by concrete pouring. Since the anti-smashing part 320 is made of flexible material, it can easily avoid the stairs 400.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this specification.

[0066] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. An engineering construction shaft, characterized in that, include: Shaft body; A rainproof component includes a rain cover, which is adjustable up and down and positioned above the wellhead of the shaft body, and the vertical projection of the rain cover completely covers the wellhead of the shaft body. The anti-smashing component includes a second adjustment mechanism and an anti-smashing part. The second adjustment mechanism is disposed on the shaft body, and the anti-smashing part is located inside the shaft body and connected to the second adjustment mechanism. The second adjustment mechanism is configured to adjust the height of the anti-smashing part, and the anti-smashing part is configured to intercept falling objects falling from above the anti-smashing part.

2. The construction shaft according to claim 1, characterized in that The rainproof component further includes a first adjustment mechanism, the first adjustment mechanism comprising: The first mounting part is fixed to the shaft body; The first movable part is fixed to the rain cover and can slide up and down to be connected to the first mounting part; The first locking structure includes a first locking part and a plurality of first locking holes. The first locking part is disposed on one of the first mounting part and the first movable part, and the plurality of first locking holes are arranged in the vertical direction on the other. The first locking part is configured to be selectively inserted into any of the first locking holes to lock the first movable part at a corresponding height.

3. The construction shaft according to claim 2, characterized in that The first movable part is a hollow tubular part sleeved on the first mounting part, the first locking part is horizontally slidably disposed on the first mounting part, and the first locking structure further includes: A first elastic portion is disposed between the first mounting portion and the first locking portion and is configured to apply an elastic force toward the first locking portion to the first locking portion. The first locking hole extends to the outer wall of the first movable part to expose the first locking part.

4. The construction shaft according to claim 3, characterized in that, The upper end of the first mounting part defines a mounting cavity, and a horizontally extending guide rod is provided in the mounting cavity. The first locking part is slidably sleeved on the guide rod, and the first elastic part is configured as a first compression spring and sleeved on the guide rod. The first locking part can abut against the inner wall of the mounting cavity and be inserted into the first locking hole under the action of the first elastic part.

5. The construction shaft according to claim 4, characterized in that, The first locking part includes: An insert block is configured to be inserted into the first locking hole. The lower end of the insert block is provided with a slope. The slope is configured such that when the first movable part moves upward relative to the first mounting part, the lower edge of the first locking hole can abut against the slope, so that the first locking part retracts relative to the mounting cavity.

6. The construction shaft according to claim 4, characterized in that, The guide rod is provided with an external thread. The first mounting part is provided with a mounting hole and a threaded hole on opposite sides of the mounting cavity. The mounting hole passes through the first mounting part. The guide rod passes through the mounting hole and the threaded hole and is threadedly engaged with the threaded hole.

7. The construction shaft according to claim 1, characterized in that, Multiple second adjustment mechanisms are provided, and these mechanisms are arranged circumferentially along the shaft body. Each second adjustment mechanism includes: The second mounting part is fixed to the inner wall of the shaft and extends vertically; The second movable part is slidably connected to the second mounting part. A lifting device is connected to the second movable part and is used to control the up and down movement of the second movable part; The anti-smashing part is connected between the second movable parts of the plurality of second adjustment mechanisms.

8. The construction shaft according to claim 7, characterized in that, The lifting device includes: The base frame is fixed to the upper end of the shaft body; A take-up roller is rotatably mounted on the base frame; A winding rope, one end of which is wound around the winding roller, and the other end of which is connected to the second movable part; The take-up roller is configured to be fixed at multiple set angles relative to the base frame.

9. The construction shaft according to claim 8, characterized in that, The winding roller is located outside the wellhead of the shaft body, and the lifting device further includes: A redirecting roller is rotatably mounted on the base frame. The redirecting roller is distributed parallel to the winding roller and is located within the vertical projection range of the wellhead of the shaft body. The take-up rope is configured to extend downward from the take-up roller, pass over the upper side of the redirecting roller, and connect to the second movable part.

10. The construction shaft according to any one of claims 7 to 9, characterized in that, The anti-smashing part is made of flexible material, and its circumferential edge is connected between the second movable parts of a plurality of second adjustment mechanisms to unfold and form an interception surface.

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