An arc-shaped self-adapting telescopic enclosure system suitable for foundation pit operation

Abstract

This application discloses an arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations, comprising: multiple modular protective bodies, which are spliced ​​together to form a continuous enclosure structure. A detachable barrier net is provided inside the continuous enclosure structure. Each modular protective body includes two supporting bodies and a metal mesh connected between the two supporting bodies. The metal mesh is composed of multiple X-shaped telescopic bending units forming a diamond-shaped mesh structure. Each X-shaped telescopic bending unit includes a first metal sheet and second metal sheets symmetrically intersecting on both sides of the first metal sheet. The intersection points of the first and second metal sheets are movably connected by telescopic bending connectors. This invention can effectively improve construction safety and operational efficiency in complex environments, while also being easy to transport and cost-effective.

Description

Technical Field

[0001] This application relates to the field of safety protection net technology, and in particular to an arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations. Background Technology

[0002] In fields such as building construction, municipal engineering, and power facility maintenance, the safe enclosure of foundation pit operations is a key link in ensuring personnel safety and construction efficiency.

[0003] Traditional safety fences mostly employ fixed or rigid structures, exhibiting significant technical drawbacks: First, they have poor environmental adaptability, failing to meet the stable enclosure requirements of complex scenarios such as mud, slopes, and uneven ground, easily leading to material waste or enclosure failure due to terrain limitations; second, transportation and storage costs are high, as traditional modular fences are bulky and heavy, difficult to handle in confined spaces such as substations, and occupy storage space; third, enclosure flexibility is insufficient, requiring additional segments to enclose irregular polygonal areas or obstacles, resulting in increased material consumption; fourth, safety protection functions are limited, with existing fences only providing basic fall protection through height and warning signs, unable to withstand secondary risks from falling objects or personnel. Although retractable or modular fences have emerged in existing technologies, they still fail to address technical challenges such as dynamic terrain adaptability, optimized folding volume, composite protection mechanisms, and material-saving curved enclosures. Therefore, this invention proposes a curved adaptive retractable enclosure system suitable for foundation pit operations. Summary of the Invention

[0004] This application provides an arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations, which can effectively improve construction safety and work efficiency in complex environments, while being easy to transport and low in cost.

[0005] In view of this, this application provides an arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations, comprising: multiple modular protective bodies;

[0006] Multiple modular protective bodies are spliced ​​together to form a continuous enclosure structure;

[0007] The continuous enclosure structure is equipped with a detachable barrier rope net on its inner side;

[0008] The modular protective body includes two supporting bodies and a metal mesh connecting the two supporting bodies;

[0009] The metal mesh is composed of a diamond-shaped mesh structure made up of multiple X-shaped telescopic bending units.

[0010] The X-shaped telescopic bending unit includes a first metal sheet and a second metal sheet symmetrically and crosswise arranged on both sides of the first metal sheet;

[0011] The intersection of the first metal sheet and the second metal sheet is movably connected by a mesh telescopic bending connector;

[0012] The first metal sheet end of the X-type telescopic bending unit and the first metal sheet end of the adjacent X-type telescopic bending unit are movably connected through the mesh telescopic bending connector.

[0013] The second metal sheet end of the X-type telescopic bending unit and the second metal sheet end of the adjacent X-type telescopic bending unit are movably connected through the mesh telescopic bending connector.

[0014] The telescopic bending connector for the mesh body includes a connecting sleeve and a rotating shaft;

[0015] The first metal sheet is fixedly connected to the connecting sleeve;

[0016] The two ends of the rotating shaft are respectively fixedly connected to the second metal plates that are symmetrically and crosswise arranged on both sides of the first metal plate;

[0017] The rotating shaft passes through the connecting sleeve, and there is a movable gap between the rotating shaft and the inner wall of the connecting sleeve, so that the rotating shaft can rotate along its own axis and tilt at various angles relative to the central axis of the connecting sleeve, thereby effectively realizing the flexible expansion and contraction and multi-angle bending of the metal mesh.

[0018] Optionally, the number of the metal meshes is two;

[0019] The two metal meshes are arranged in parallel and spaced apart, and the mesh openings of the two metal meshes are arranged in an alternating overlapping manner.

[0020] Optionally, the two ends of the connecting sleeve are flared.

[0021] Optionally, the support body is provided with a fixing pin assembly for fixing the support body to the ground.

[0022] Optionally, the fixed pin assembly includes a mounting plate, a fixed sleeve fixedly disposed on the mounting plate in a vertical direction, and an L-shaped pin movably passing through the fixed sleeve.

[0023] The vertical section of the L-shaped pin is located inside the fixing sleeve;

[0024] The mounting plate is provided with a positioning element for positioning the initial position of the L-shaped pin in conjunction with the horizontal section of the L-shaped pin.

[0025] Optionally, the bottom of the support body is provided with casters; the casters are provided with brake devices.

[0026] Optionally, the support body is provided with a fixing buckle and a fixing slot for cooperating with the fixing buckle on the adjacent support body;

[0027] The supporting bodies of two adjacent modular protective bodies are fixed together by the fixing buckle and the fixing slot.

[0028] Optionally, a hook assembly for connecting the barrier rope net is provided on one side of the bottom of the support body.

[0029] Optionally, the outer surface of the support body is provided with a reflective warning strip.

[0030] Optionally, both the first metal sheet and the second metal sheet are made of aluminum alloy;

[0031] The supporting body is made of stainless steel.

[0032] As can be seen from the above technical solutions, the embodiments of this application have the following advantages: This arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations is easy to use, convenient to transport, and has low operating costs. It can effectively improve construction safety and work efficiency in complex environments. By providing a detachable barrier rope net inside the continuous enclosure structure, it can effectively prevent personnel from accidentally falling into the pit, while protecting workers in the foundation pit from falling objects. By using a metal mesh, it is sturdy, durable, stable, and has good protective effects. The metal mesh consists of a diamond-shaped mesh structure composed of multiple X-shaped telescopic bending units. Each X-shaped telescopic bending unit includes a first metal sheet. The first metal sheet and the second metal sheet are symmetrically arranged on both sides of the first metal sheet. The intersection of the first metal sheet and the second metal sheet is movably connected by a mesh telescopic bending connector. The mesh telescopic bending connector includes a connecting sleeve and a rotating shaft. The rotating shaft passes through the connecting sleeve and has a movable gap between the rotating shaft and the inner wall of the connecting sleeve, so that the rotating shaft can rotate along its own axis. At the same time, it can tilt at various angles relative to the central axis of the connecting sleeve within the connecting sleeve, thereby effectively realizing the flexible expansion and contraction and multi-angle bending of the metal mesh. Thus, when facing irregular enclosure areas, it can achieve arc-shaped enclosure without dead angles, thereby achieving the purpose of saving materials. Attached Figure Description

[0033] Figure 1 This is a schematic diagram illustrating the use of the arc-shaped adaptive telescopic enclosure system applicable to foundation pit operations in the embodiments of this application;

[0034] Figure 2 This is a top view of the arc-shaped adaptive telescopic enclosure system applicable to foundation pit operations in the embodiments of this application.

[0035] Figure 3 This is a schematic diagram of the modular protective body when deployed in an embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the modular protective body during its retraction and extension in an embodiment of this application;

[0037] Figure 5 This is a front view of the supporting body in an embodiment of this application;

[0038] Figure 6 This is a side view of the supporting body in an embodiment of this application;

[0039] Figure 7 This is a top view of the modular protective body after being stretched linearly in an embodiment of this application;

[0040] Figure 8 This is a top view of the modular protective body after it has been curved in an arc shape, as described in this application embodiment;

[0041] Figure 9 This is a schematic diagram of the structure of the X-type telescopic bending unit in the embodiments of this application;

[0042] Figure 10 This is a partial structural diagram of the metal mesh in an embodiment of this application;

[0043] Figure 11 This is a schematic diagram of the structure of the telescopic bending connector in the embodiment of this application;

[0044] Figure 12 This is a schematic diagram of the structure of the mesh telescopic bending connector when the rotating shaft is in an inclined state in the embodiments of this application;

[0045] Figure 13 This is a schematic diagram of the fixed pin assembly in its initial state in an embodiment of this application;

[0046] Figure 14 This is a structural schematic diagram of the fixed pin assembly in use in the embodiments of this application;

[0047] Figure 15 This is a schematic diagram of the omnidirectional wheel structure in an embodiment of this application;

[0048] Figure 16 This is a schematic diagram showing the connection of multiple modular protection entities in an embodiment of this application.

[0049] The attached figures are labeled as follows:

[0050] 1-Modular protective main body, 11-Supporting main body, 12-Metal mesh body, 121-First metal sheet, 122-Second metal sheet, 123-Connecting sleeve, 124-Rotating shaft, 13-Handle, 14-Universal wheel, 15-Fixing pin assembly, 151-Mounting plate, 152-Fixing sleeve, 153-L-shaped pin, 154-Positioning component, 155-Limiting plate, 16-Fixing buckle, 17-Fixing locking position, 18-Brake device, 2-Barrier rope net. Detailed Implementation

[0051] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0052] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] The inventors discovered that in current substation maintenance settings, the enclosure areas often present various irregular shapes. Traditional techniques (such as metal frame fences and water-filled barriers) are difficult to implement effectively due to their fixed geometric dimensions. For example, a 1.5m gap might be unsuitable for a 2.0m long metal frame fence, or it could be installed but would require expanding the enclosure area. Similarly, a 1.5m gap might be too large for a 1.0m long water-filled barrier, leaving gaps and failing to meet safety requirements. In contrast, rope net fences often leave excess material, which, being non-extendable, creates redundancy, affecting the aesthetics of the work area and potentially hindering construction (and possibly tripping workers).

[0055] This application provides an embodiment of an arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations. Please refer to [link / reference needed] for details. Figures 1 to 4 as well as Figures 7 to 12 .

[0056] The arc-shaped adaptive telescopic enclosure system for foundation pit operations in this embodiment includes: multiple modular protective bodies 1, which are spliced ​​together to form a continuous enclosure structure. A detachable barrier net 2 is provided inside the continuous enclosure structure. Each modular protective body 1 includes two supporting bodies 11 and a metal mesh 12 connected between the two supporting bodies 11. The metal mesh 12 is composed of multiple X-shaped telescopic bending units forming a diamond-shaped mesh structure. Each X-shaped telescopic bending unit includes a first metal sheet 121 and second metal sheets 122 symmetrically and intersectingly arranged on both sides of the first metal sheet 121. The intersection of the first metal sheet 121 and the second metal sheet 122 is movably connected by a mesh telescopic bending connector. The end of the first metal sheet 121 of the X-shaped telescopic bending unit and the end of the first metal sheet 121 of its adjacent X-shaped telescopic bending unit are connected by a mesh extension... The telescopic bending connector is movably connected; the end of the second metal sheet 122 of the X-shaped telescopic bending unit is movably connected to the end of the second metal sheet 122 of the adjacent X-shaped telescopic bending unit through the telescopic bending connector; the telescopic bending connector includes a connecting sleeve 123 and a rotating shaft 124; the first metal sheet 121 is fixedly connected to the connecting sleeve 123; both ends of the rotating shaft 124 are fixedly connected to the second metal sheets 122 that are symmetrically and crosswise arranged on both sides of the first metal sheet 121; the rotating shaft 124 passes through the connecting sleeve 123, and there is a movable gap between the rotating shaft 124 and the inner wall of the connecting sleeve 123, so that the rotating shaft 124 can rotate along its own axis, and can tilt at various angles relative to the central axis of the connecting sleeve 123 within the connecting sleeve 123, thereby effectively realizing the flexible telescopic and multi-angle bending of the metal mesh 12.

[0057] It should be noted that this arc-shaped adaptive telescopic enclosure system, suitable for foundation pit operations, is easy to use, convenient to transport, and has low operating costs. It can effectively improve construction safety and work efficiency in complex environments. By providing a detachable barrier net 2 inside the continuous enclosure structure, it can effectively prevent personnel from accidentally falling into the pit and protect workers inside the pit from falling objects. By using a metal mesh 12, it is sturdy, durable, and highly stable (it will not sag due to excessive enclosure length, eliminating the need for additional support frames), has good protective effects, and will not tangle. The metal mesh 12 consists of a diamond-shaped mesh structure composed of multiple X-shaped telescopic bending units. Each X-shaped telescopic bending unit includes a first metal sheet 121 and symmetrically intersected... The second metal sheets 122 on both sides of the first metal sheet 121 and the intersection of the second metal sheet 122 are movably connected by a mesh telescopic bending connector. The mesh telescopic bending connector includes a connecting sleeve 123 and a rotating shaft 124. The rotating shaft 124 passes through the connecting sleeve 123 and has a movable gap between the rotating shaft 124 and the inner wall of the connecting sleeve 123, so that the rotating shaft 124 can rotate along its own axis and tilt at various angles relative to the central axis of the connecting sleeve 123 within the connecting sleeve 123. This effectively realizes the flexible telescopic and multi-angle bending of the metal mesh 12, thus achieving arc-shaped enclosure without dead angles when facing irregular enclosure areas, achieving the purpose of saving materials.

[0058] The above is Embodiment 1 of an arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations provided in this application. The following is Embodiment 2 of an arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations provided in this application. Please refer to the following for details. Figures 1 to 16 .

[0059] The arc-shaped adaptive telescopic enclosure system for foundation pit operations in this embodiment includes: multiple modular protective bodies 1, which are spliced ​​together to form a continuous enclosure structure. A detachable barrier net 2 is provided inside the continuous enclosure structure. Each modular protective body 1 includes two supporting bodies 11 and a metal mesh 12 connected between the two supporting bodies 11. The metal mesh 12 is composed of multiple X-shaped telescopic bending units forming a diamond-shaped mesh structure. Each X-shaped telescopic bending unit includes a first metal sheet 121 and second metal sheets 122 symmetrically and intersectingly arranged on both sides of the first metal sheet 121. The intersection of the first metal sheet 121 and the second metal sheet 122 is movably connected by a mesh telescopic bending connector. The end of the first metal sheet 121 of the X-shaped telescopic bending unit and the end of the first metal sheet 121 of its adjacent X-shaped telescopic bending unit are connected by a mesh extension... The telescopic bending connector is movably connected; the end of the second metal sheet 122 of the X-shaped telescopic bending unit is movably connected to the end of the second metal sheet 122 of the adjacent X-shaped telescopic bending unit through the telescopic bending connector; the telescopic bending connector includes a connecting sleeve 123 and a rotating shaft 124; the first metal sheet 121 is fixedly connected to the connecting sleeve 123; both ends of the rotating shaft 124 are fixedly connected to the second metal sheets 122 that are symmetrically and crosswise arranged on both sides of the first metal sheet 121; the rotating shaft 124 passes through the connecting sleeve 123, and there is a movable gap between the rotating shaft 124 and the inner wall of the connecting sleeve 123, so that the rotating shaft 124 can rotate along its own axis, and can tilt at various angles relative to the central axis of the connecting sleeve 123 within the connecting sleeve 123, thereby effectively realizing the flexible telescopic and multi-angle bending of the metal mesh 12. Specifically, the length of the first metal sheet 121 is equal to the length of the second metal sheet 122, and the intersection of the first metal sheet 121 and the second metal sheet 122 is located at the midpoint between the first metal sheet 121 and the second metal sheet 122.

[0060] Understandably, this arc-shaped adaptive telescopic enclosure system, suitable for foundation pit operations, is easy to use and can be assembled and dismantled in a short time. The metal mesh 12, in addition to its telescopic capability, also possesses a certain degree of arc bending, further addressing the issue of excessive quantities required when using ordinary polygonal enclosures. This results in material savings and cost reduction during construction, while also adapting to various jagged working environments. During enclosure, it can completely isolate the work area while adhering to the principle of "no overlap and no leakage." Furthermore, it offers advantages such as not occupying excessive space, convenient assembly and disassembly, easy relocation and transportation, and no obstruction of construction operations.

[0061] The number of metal meshes 12 can be two; the two metal meshes 12 are arranged in parallel and spaced apart to form a double-layer structure, and the mesh of the two metal meshes 12 is arranged in an alternating overlapping manner.

[0062] It should be noted that by using two metal mesh bodies 12 to form a double-layer composite mesh, the protective effect is greatly improved while increasing strength and stability.

[0063] The connecting sleeve 123 has flared ends, which can further increase the tilt angle of the rotating shaft 124 within the connecting sleeve 123, thereby increasing the overall flexibility of the metal mesh 12.

[0064] The support body 11 is provided with a fixing pin assembly 15 for fixing the support body 11 to the ground. It is applicable to various types of construction sites (hard cement ground, mud ground, depression ground, etc.) and terrains (flat ground, slope ground and uneven ground). By using the fixing pin assembly 15 to fix the support body 11 to the ground, it is not easy for it to tilt, overturn, sink or be placed unevenly.

[0065] Specifically, the fixed pin assembly 15 includes a mounting plate 151, a fixed sleeve 152 fixedly mounted on the mounting plate 151 in a vertical direction, and an L-shaped pin 153 movably passing through the fixed sleeve 152. The vertical section of the L-shaped pin 153 is located inside the fixed sleeve 152. The mounting plate 151 is provided with a positioning member 154 for cooperating with the horizontal section of the L-shaped pin 153 to position the initial position of the L-shaped pin 153. The mounting plate 151 is also provided with a limiting plate 155 for limiting the movement of the L-shaped pin 153.

[0066] It should be noted that when the L-shaped pin 153 is not in use, the L-shaped pin 153 can be rotated and its horizontal section can be placed on the positioning member 154 to achieve the initial positioning of the L-shaped pin 153; when it is necessary to fix the support body 11 to the ground, the L-shaped pin 153 can be rotated to disengage its horizontal section from the positioning member 154, and then the L-shaped pin 153 can be pressed downward into the ground to achieve the fixation of the support body 11.

[0067] The bottom of the support body 11 can be equipped with casters 14, and the casters 14 are equipped with brake devices 18 for easy movement and fixation. The support body 11 can also be equipped with a handle 13 for easier use and movement.

[0068] The support body 11 is provided with a fixing buckle 16 and a fixing slot 17 for cooperating with the fixing buckle 16 on the adjacent support body 11. The support bodies 11 of two adjacent modular protective bodies 1 are fixed together by the fixing buckle 16 and the fixing slot 17. Specifically, the fixing buckle 16 has an L-shaped structure, and one end of the fixing buckle 16 is rotatably connected to the support body 11, while the other end is used to engage with the fixing slot 17.

[0069] A hook assembly for connecting the barrier rope net 2 is provided on one side of the bottom of the support body 11. The barrier rope net 2 is connected to the bottom of the inner side of the continuous enclosure structure through the hook assembly on each support body 11.

[0070] The outer surface of the support body 11 is equipped with reflective warning strips, making it easy for workers to notice during nighttime construction.

[0071] The first metal sheet 121 and the second metal sheet 122 can both be made of aluminum alloy, which has a certain strength, is sturdy and durable, and is lightweight, not easy to rust or corrode, and is easy to maintain (it can be kept clean by simply rinsing with water after being contaminated with oil, dust or mud); the support body 11 has a columnar structure and is made of stainless steel, which has high strength, is not easy to bend or deform, and has stronger safety and durability.

[0072] In practice, multiple modular protective bodies 1 can be transported to the area that needs to be enclosed. Then, each modular protective body 1 can be stretched and bent according to the shape of the area to be enclosed. The multiple modular protective bodies 1 can be connected end to end to achieve an arc-shaped enclosure without blind spots. Then, as needed, a barrier rope net 2 can be installed inside the continuous enclosure structure.

[0073] This arc-shaped adaptive telescopic enclosure system, suitable for foundation pit operations, effectively prevents personnel from falling into the pit and being struck by falling objects when used in conjunction with the barrier rope net 2. The double-layered composite net (i.e., two parallel and spaced metal mesh bodies 12), the barrier rope net 2, the fixing pin assembly 15, and the braking device 18 form a three-tiered defense against personnel falling into the pit. The first line of defense: the double-layered composite net prevents personnel from approaching the deep foundation pit, and the addition of red and yellow reflective warning signs effectively prevents personnel from approaching the pit. The second line of defense: the bottom layer of barrier rope net 2 within the enclosure area prevents personnel and falling objects from falling into the pit. The third line of defense: if the falling object is heavy enough that the bottom layer of barrier rope net 2 cannot bear the weight, causing the entire object to fall into the pit, the barrier rope net 2, in conjunction with the supporting body 11, will firmly lock (lock) the pit opening due to the force of gravity (through the tension of the barrier rope net 2, the double-layered composite net itself, and the anchoring force of the supporting body 11), preventing further descent.

[0074] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An arc-shaped adaptive telescopic enclosure system suitable for foundation pit operations, characterized in that, include: Multiple modular protective bodies; Multiple modular protective bodies are spliced ​​together to form a continuous enclosure structure; The continuous enclosure structure is equipped with a detachable barrier rope net on its inner side; The modular protective body includes two supporting bodies and a metal mesh connecting the two supporting bodies; The support body is provided with a fixing pin assembly for fixing the support body to the ground; The fixed pin assembly includes a mounting plate, a fixed sleeve fixedly mounted on the mounting plate in a vertical direction, and an L-shaped pin movably passing through the fixed sleeve. The vertical section of the L-shaped pin is located inside the fixing sleeve; The mounting plate is provided with a positioning element for positioning the initial position of the L-shaped pin in conjunction with the horizontal section of the L-shaped pin. The metal mesh is composed of a diamond-shaped mesh structure made up of multiple X-shaped telescopic bending units. The X-shaped telescopic bending unit includes a first metal sheet and a second metal sheet symmetrically and crosswise arranged on both sides of the first metal sheet; The intersection of the first metal sheet and the second metal sheet is movably connected by a mesh telescopic bending connector; The first metal sheet end of the X-type telescopic bending unit and the first metal sheet end of the adjacent X-type telescopic bending unit are movably connected through the mesh telescopic bending connector. The second metal sheet end of the X-type telescopic bending unit and the second metal sheet end of the adjacent X-type telescopic bending unit are movably connected through the mesh telescopic bending connector. The telescopic bending connector for the mesh body includes a connecting sleeve and a rotating shaft; The first metal sheet is fixedly connected to the connecting sleeve; The two ends of the rotating shaft are respectively fixedly connected to the second metal plates that are symmetrically and crosswise arranged on both sides of the first metal plate; The rotating shaft passes through the connecting sleeve, and there is a movable gap between the rotating shaft and the inner wall of the connecting sleeve, so that the rotating shaft can rotate along its own axis and tilt at various angles relative to the central axis of the connecting sleeve, thereby effectively realizing the flexible expansion and contraction and multi-angle bending of the metal mesh.

2. The arc-shaped adaptive telescopic enclosure system for foundation pit operations according to claim 1, characterized in that, The number of metal meshes is two; The two metal meshes are arranged in parallel and spaced apart, and the mesh openings of the two metal meshes are arranged in an alternating overlapping manner.

3. The arc-shaped adaptive telescopic enclosure system for foundation pit operations according to claim 1, characterized in that, The connecting sleeve has flared ends.

4. The arc-shaped adaptive telescopic enclosure system for foundation pit operations according to claim 1, characterized in that, The bottom of the support body is equipped with casters; the casters are equipped with brake devices.

5. The arc-shaped adaptive telescopic enclosure system for foundation pit operations according to claim 1, characterized in that, The supporting body is provided with a fixing buckle and a fixing slot for cooperating with the fixing buckle on the adjacent supporting body; The supporting bodies of two adjacent modular protective bodies are fixed together by the fixing buckle and the fixing slot.

6. The arc-shaped adaptive telescopic enclosure system for foundation pit operations according to claim 1, characterized in that, The bottom side of the support body is provided with a hook assembly for connecting the barrier rope net.

7. The arc-shaped adaptive telescopic enclosure system for foundation pit operations according to claim 1, characterized in that, The outer surface of the support body is provided with reflective warning strips.

8. The arc-shaped adaptive telescopic enclosure system for foundation pit operations according to claim 1, characterized in that, Both the first metal sheet and the second metal sheet are made of aluminum alloy; The supporting body is made of stainless steel.

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