Foundation pit high-altitude operation protection system

Abstract

The utility model relates to the technical field of foundation pit construction, specifically relates to a kind of foundation pit aerial work protection system, including anchoring structure, and the two sides of foundation pit are respectively set anchoring structure;Transverse connecting cable, and the two ends of transverse connecting cable are respectively connected with anchoring structure;Crossbeam, crossbeam is set in the below of transverse connecting cable, and the two ends of crossbeam are respectively connected with the two sides of foundation pit;Vertical support, vertical support one end is connected with crossbeam, and vertical support other end extends along height direction and supports transverse connecting cable;Safety rope, and one end of safety rope is connected with transverse connecting cable by lock catch, and lock catch can slide along transverse connecting cable.The utility model can overcome the technical problem that personnel connect safety rope in the prior art on foundation pit side wall, if safety rope is too short, then it can lead to the efficiency reduction of slag removal operation and the cleaning range is limited, if safety rope is too long, then it can lead to the technical problem that the protection effect is reduced.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit construction technology, and in particular to a protection system for high-altitude operations in foundation pits. Background Technology

[0002] An excavation pit is a space created by excavating earthwork below ground level for the construction of underground structures (such as basements, underground passages, and subway stations). Concrete supports are typically installed above the pit, requiring manual cleaning of the excavated material. However, when the pit is deep, cleaning the concrete supports carries significant risks associated with working at height. Before cleaning, workers need to anchor safety ropes to the sidewall of the pit. If the safety rope is too short, it restricts worker movement, reducing cleaning efficiency and making it difficult to clean the central area of ​​the concrete supports, which is far from the pit sidewall. Conversely, if the rope is too long, it loses its protective function. Therefore, there is an urgent need to develop a new type of high-altitude work protection system for excavations. Utility Model Content

[0003] The purpose of this invention is to overcome the technical problems in the prior art where workers connect safety ropes to the side wall of the foundation pit. If the safety rope is too short, it will reduce the efficiency of the slag removal operation and limit the cleaning range. If the safety rope is too long, it will reduce the protective effect. This invention provides a high-altitude operation protection system for foundation pits.

[0004] In a first aspect, this utility model provides a high-altitude work protection system for foundation pits, comprising: Anchoring structures are installed on both sides of the foundation pit; The transverse connecting cable has its two ends connected to the anchoring structure. A crossbeam is placed below the transverse connecting cable, and its two ends are connected to both sides of the foundation pit. The vertical support member has one end connected to the crossbeam and the other end extending along the height direction to support the transverse connecting cable. The safety rope has one end connected to the horizontal connecting cable via a buckle, which can slide along the horizontal connecting cable.

[0005] Preferably, at least one end of the transverse connecting cable is provided with a tensioning mechanism, which is used to tension the transverse connecting cable.

[0006] Preferably, the tensioning mechanism includes a turnbuckle, one end of which is connected to the anchoring structure, and the other end of which is connected to the transverse connecting cable.

[0007] Preferably, a sleeve is provided inside the anchoring structure, the sleeve runs through the anchoring structure along the width of the foundation pit, and the end of the transverse connecting cable passes through the sleeve and is anchored to the side of the anchoring structure away from the foundation pit.

[0008] Preferably, the sleeve is a flexible material component.

[0009] Preferably, the upper end of the vertical support member is provided with a wire hole, through which the horizontal connecting cable passes.

[0010] Preferably, the vertical support is located at the middle of the crossbeam along the width of the pit.

[0011] Preferably, the support is provided with reflective markings and / or warning lights.

[0012] Preferably, a guardrail is connected to the anchoring structure, and the guardrail is set along the length of the foundation pit.

[0013] Preferably, a hook is provided on the side of the anchoring structure facing away from the pit, and the hook is used to suspend the cable.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a high-altitude operation protection system for foundation pits. By installing a transverse connecting cable between the anchoring structures on both sides of the foundation pit and slidingly connecting the safety rope's buckle to the transverse connecting cable, the system can expand the range of movement of workers along the width of the foundation pit without increasing the length of the safety rope. This allows workers to move freely to various positions on the concrete support, thus enabling more efficient and comprehensive cleaning of the concrete support. It also avoids the technical problem of reduced protection effectiveness due to excessively long safety ropes.

[0015] Meanwhile, this utility model also provides a crossbeam and a vertical support below the horizontal connecting cable, which can support the horizontal connecting cable from the bottom, thereby suppressing the downward deflection of the horizontal connecting cable and preventing the worker's extreme movement distance in the vertical direction from exceeding the length of the safety rope too much, which could lead to the worker falling and hitting the bottom of the pit. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the elevation structure of a high-altitude operation protection system for foundation pits according to this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the elevation structure of a high-altitude operation protection system for foundation pits according to this utility model. Figure 2 ; Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure of section AA; Figure 4 yes Figure 2 A magnified view of the structure at point B in the middle; icon: 1-Anchoring structure; 11-Casing; 12-Hook; 2-Horizontal connecting cable; 3-Crossbeam; 4-Vertical support; 5-Safety rope; 51-Locking buckle; 6-Tensioning mechanism; 7-Guardrail; 8-Foundation pit. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0018] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0020] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0021] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0022] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0023] Example 1 like Figures 1 to 4 As shown, a high-altitude operation protection system for foundation pits includes an anchoring structure 1, a transverse connecting cable 2, a crossbeam 3, a vertical support 4, and a safety rope 5. Anchoring structures 1 are respectively installed on both sides of the foundation pit 8. The transverse connecting cable 2 is extended along the width of the foundation pit 8, and both ends of the transverse connecting cable 2 are connected to the anchoring structure 1. The crossbeam 3 is extended along the width of the foundation pit 8, positioned below the transverse connecting cable 2, and both ends of the crossbeam 3 are connected to both sides of the foundation pit 8. One end of the vertical support 4 is connected to the crossbeam 3, and the other end of the vertical support 4 extends along the height direction and supports the transverse connecting cable 2. One end of the safety rope 5 is connected to the transverse connecting cable 2 via a buckle 51, and the other end of the safety rope 5 is used to connect to the worker. The buckle 51 can slide along the transverse connecting cable 2.

[0024] exist Figures 1 to 4 The embodiment also uses a rectangular coordinate system to mark the various directions, where the X-axis represents the length of the pit 8, the Y-axis represents the width of the pit 8, and the Z-axis represents the height.

[0025] This high-altitude operation protection system for the foundation pit involves erecting a transverse connecting cable 2 between the anchoring structures 1 on both sides of the foundation pit 8. The safety rope 5's buckle 51 is slidably connected to the transverse connecting cable 2. During debris removal operations, the end of the safety rope 5 furthest from the transverse connecting cable 2 is connected to the worker. The worker's maximum range of motion along the height direction is the sum of the length of the safety rope 5 and the maximum deflection of the transverse connecting cable 2. The worker's maximum range of motion along the width direction of the foundation pit 8 is the sum of the length of the safety rope 5 and the stroke of the buckle 51. Therefore, this implementation method can expand the worker's range of motion along the width direction of the foundation pit 8 without increasing the length of the safety rope 5. This allows workers to move freely to various positions on the concrete support, enabling more efficient and comprehensive debris removal operations. It also avoids the technical problem of reduced protective effectiveness due to an excessively long safety rope 5.

[0026] Meanwhile, this embodiment also provides a crossbeam 3 and a vertical support 4 below the transverse connecting cable 2, which can support the transverse connecting cable 2 from the bottom, thereby suppressing the downward deflection of the transverse connecting cable 2 and preventing the worker's extreme activity distance in the height direction from exceeding the length of the safety rope 5 too much, which could lead to the worker falling into the bottom of the pit 8.

[0027] In optional embodiments, the anchoring structure 1 can employ existing technology, and its specific form includes, but is not limited to, anchor bolts, anchor cables, or ground anchors; and the anchoring structure 1 can be a component specifically designed for the transverse connecting cable 2, or it can be an existing component located on both sides of the foundation; for example Figure 1 As shown, the retaining walls on both sides of the foundation can be directly used as anchoring structures 1.

[0028] In optional embodiments, the specific structural form of the transverse connecting cable 2 includes, but is not limited to, rigid or flexible components, such as steel pipes, steel cables or chains, as long as the buckle 51 can be fitted onto the outside of the transverse connecting cable 2 and can slide along the transverse connecting cable 2.

[0029] In optional embodiments, the specific form of the crossbeam 3 includes, but is not limited to, a concrete beam, a steel beam, or a truss beam; and the crossbeam 3 can be a component specifically designed for the vertical support 4, or it can be an existing component above the foundation; for example... Figure 1 As shown, the through beam set above the foundation along the width of the foundation can be directly used as the crossbeam 3.

[0030] In optional embodiments, the vertical support member 4 can support the horizontal connecting cable 2 in various ways. For example, the top of the vertical support member 4 can be directly made to abut against the horizontal connecting cable 2, or a pulley group can be set at the top of the vertical support member 4 to tension the horizontal connecting cable 2, thereby reducing the friction between the horizontal connecting cable 2 and the vertical support member 4.

[0031] In an optional embodiment, the safety rope 5 and its buckle 51 can be existing products, such as D-type buckle 51, oval buckle 51 or pear-shaped buckle 51, as long as they can be fitted over the outside of the transverse connecting cable 2 and slide along the transverse connecting cable 2.

[0032] In an optional implementation, the length of the safety rope 5 is less than the depth of the pit 8.

[0033] In an optional embodiment, at least one end of the transverse connecting cable 2 is provided with a tensioning mechanism 6. The tensioning mechanism 6 is used to tension the transverse connecting cable 2. The tensioning mechanism 6 can be an existing product, such as a tensioning spiral sleeve 11, a jack tensioning system, a ratchet tensioner, or an electric winch tensioning system.

[0034] This embodiment can use the tension generated by the tensioning mechanism 6 to straighten the transverse connecting cable 2, thereby avoiding excessive downward deflection of the transverse connecting cable 2, which would cause the worker's limit of movement in the vertical direction to increase excessively, and thus cause the worker to hit the bottom of the pit 8 in the event of a fall accident; therefore, this embodiment is particularly suitable for the case where the transverse connecting cable 2 is a steel wire rope.

[0035] In an optional embodiment, the tensioning mechanism 6 includes a turnbuckle, one end of which is connected to the anchoring structure 1, and the other end of which is connected to the transverse connecting cable 2.

[0036] Turnbuckles can be purchased directly from existing products; for example... Figure 4 The turnbuckle shown includes a frame with two screws threaded to both ends. One screw is connected to the anchoring structure 1, and the other screw is connected to the transverse connecting cable 2. Rotating the frame can move the two screws closer or further apart, thereby adjusting the tension of the turnbuckle on the transverse connecting cable 2.

[0037] This embodiment utilizes the mature turnbuckle as the tensioning mechanism 6, which can reduce the design difficulty and manufacturing cost of the high-altitude operation protection system for this foundation pit.

[0038] In an optional embodiment, a sleeve 11 is provided inside the anchoring structure 1. The sleeve 11 extends through the anchoring structure 1 along the width direction of the foundation pit 8. The end of the transverse connecting cable 2 passes through the sleeve 11 and is anchored to the side of the anchoring structure 1 away from the foundation pit 8.

[0039] If the transverse connecting cable 2 is directly anchored to the side of the anchoring structure 1 near the pit 8, tensile stress will be generated between the transverse connecting cable 2 and the anchor structure. When the anchoring structure 1 is a concrete structure, this connection method is prone to damage or loosening because concrete has high compressive strength but low tensile strength. Therefore, in this embodiment, the transverse connecting cable 2 passes through the sleeve 11 and is anchored to the side of the anchoring structure 1 away from the pit 8. This not only makes it more difficult for the transverse connecting cable 2 to separate from the anchoring structure 1, but also transforms the tensile stress between the transverse connecting cable 2 and the anchor structure into compressive stress. This makes this embodiment more suitable for situations where the anchoring structure 1 is a concrete structure.

[0040] In an optional embodiment, the sleeve 11 is a flexible material component, such as a rubber component or a leather component.

[0041] This embodiment can prevent the transverse connecting cable 2 from being scratched by the sleeve 11, which would lead to a decrease in the strength of the transverse connecting cable 2 or even breakage, and endanger the life safety of the workers.

[0042] In an optional embodiment, the upper end of the vertical support member 4 is provided with a wire hole, through which the horizontal connecting cable 2 passes.

[0043] This embodiment provides one specific structural form of the vertical support member 4; the through hole can provide complete restraint on the transverse connecting cable 2 along the circumference of the transverse connecting cable 2, thereby suppressing the displacement of the transverse connecting cable 2 along the length and / or height of the pit 8 to the greatest extent, thus ensuring the safety of the workers.

[0044] In an optional embodiment, the vertical support 4 is located at the middle of the crossbeam 3 along the width direction of the pit 8.

[0045] Since the vertical support 4 may obstruct the movement of the latch 51 along the transverse connecting cable 2, thus preventing workers from passing through the location of the vertical support 4 when moving along the width of the pit 8, this embodiment places the vertical support 4 in the middle of the crossbeam 3, which is beneficial for workers to move through the pit. Figures 1 to 2 As shown, the cleaning operation is carried out from both sides of the concrete support and converges in the middle of the concrete support to reduce blind spots in the cleaning.

[0046] In an optional embodiment, the support is provided with reflective markings and / or warning lights.

[0047] This implementation method can alert workers to the location of the support components, preventing collisions or safety accidents caused by workers not noticing the support components.

[0048] In an optional embodiment, a guardrail 7 is connected to the anchoring structure 1, and the guardrail 7 is set along the length direction of the foundation pit 8.

[0049] This implementation method can prevent safety accidents caused by workers accidentally falling from the outside of the anchoring structure 1 into the foundation pit 8.

[0050] In an optional embodiment, a hook 12 is provided on the side of the anchoring structure 1 facing away from the pit 8, and the hook 12 is used to suspend the cable.

[0051] This embodiment can suspend the cable on the side wall of the anchoring structure 1, which can avoid the disorderly stacking of cables, which could cause the cables to entangle the workers and thus lead to safety accidents; and it can also avoid the cables being damaged by scraping against the ground.

[0052] In an optional embodiment, the number of hooks 12 is at least two, and the hooks 12 are distributed at intervals along the length direction of the pit 8.

[0053] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protection system for high-altitude operations in foundation pits, characterized in that, include: Anchoring structure (1) is provided on both sides of the foundation pit (8). A transverse connecting cable (2), the two ends of which are respectively connected to the anchoring structure (1); A crossbeam (3) is located below the transverse connecting cable (2), and the two ends of the crossbeam (3) are respectively connected to the two sides of the foundation pit (8); A vertical support member (4) is connected at one end to the crossbeam (3), and the other end of the vertical support member (4) extends along the height direction and supports the transverse connecting cable (2). Safety rope (5), one end of which is connected to the transverse connecting cable (2) via a buckle (51), the buckle (51) being able to slide along the transverse connecting cable (2).

2. The high-altitude operation protection system for foundation pits according to claim 1, characterized in that, At least one end of the transverse connecting cable (2) is provided with a tensioning mechanism (6), which is used to tension the transverse connecting cable (2).

3. The high-altitude operation protection system for foundation pits according to claim 2, characterized in that, The tensioning mechanism (6) includes a turnbuckle, one end of which is connected to the anchoring structure (1), and the other end of which is connected to the transverse connecting cable (2).

4. The high-altitude operation protection system for foundation pits according to claim 1, characterized in that, The anchoring structure (1) is provided with a sleeve (11) inside. The sleeve (11) passes through the anchoring structure (1) along the width direction of the foundation pit (8). The end of the transverse connecting cable (2) passes through the sleeve (11) and is anchored to the side of the anchoring structure (1) away from the foundation pit (8).

5. The high-altitude operation protection system for foundation pits according to claim 4, characterized in that, The sleeve (11) is a flexible material component.

6. A pit high-altitude operation protection system according to any one of claims 1 to 5, characterized in that, The upper end of the vertical support member (4) is provided with a wire hole, through which the horizontal connecting cable (2) passes.

7. A pit high-altitude operation protection system according to any one of claims 1 to 5, characterized in that, The vertical support (4) is located at the middle of the crossbeam (3) along the width direction of the foundation pit (8).

8. A high-altitude work protection system for foundation pits according to any one of claims 1 to 5, characterized in that, The support is equipped with reflective markings and / or warning lights.

9. A pit high-altitude operation protection system according to any one of claims 1 to 5, characterized in that, The anchoring structure (1) is connected to a guardrail (7), which is set along the length of the foundation pit (8).

10. A high-altitude work protection system for foundation pits according to any one of claims 1 to 5, characterized in that, The anchoring structure (1) has a hook (12) on the side facing away from the pit (8), and the hook (12) is used to suspend the cable.

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