Intelligent deep foundation pit safety channel

Abstract

The utility model discloses an intelligent deep foundation pit safety channel which comprises a vertically-arranged frame and a walking ladder arranged in the frame, a hanging point is arranged on the frame, an inhaul cable is arranged at the hanging point in a matched mode, one end of the inhaul cable is connected to a slope face in an attached mode, the other end of the inhaul cable is provided with a triggering piece, and a monitoring piece is arranged on the frame and located below the hanging point. The monitoring piece is used for detecting the distance between the monitoring piece and the triggering piece, and the monitoring piece and the triggering piece are both located in the frame. When the safety channel is inclined, the distance between the triggering piece and the monitoring piece can be changed so as to judge whether the posture of the safety channel is abnormal or not. Compared with the prior art, the monitoring piece and the triggering piece are both arranged in the frame, so that the influence of the foundation pit operation environment on the monitoring precision can be avoided, and the aim of not easily generating missing report or false report of the inclination of the elevator cage is achieved.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit construction technology, and in particular, to an intelligent safety passage for deep foundation pits. Background Technology

[0002] During the construction of foundation pits, ladder cages are often used to assist in the movement of people up and down. A ladder cage is a temporary vertical transportation facility used in building construction, mainly serving the movement of personnel and materials up and down on the construction site. It is similar to a ladder with enclosures and layers or a small lifting platform.

[0003] Currently, Chinese patent CN119811004A discloses an intelligent monitoring and early warning system for elevated bridge piers, including a ladder cage, a wind speed monitor, a laser displacement sensor, a smart door for the ladder cage, an electronic information board, a ladder cage fence, a control unit, and an alarm in the central control room. The laser displacement sensor monitors the distance between the ladder cage and the elevated bridge pier, determining whether the ladder cage is tilting based on changes in the distance value. If tilting occurs, the alarm will sound. However, the reliability of detection using laser displacement sensors is relatively low. For example, dust generated during earthwork operations in the foundation pit can cause laser scattering or attenuation, easily leading to false alarms or missed alarms regarding ladder cage tilting. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an intelligent safety passage for deep foundation pits.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An intelligent safety passage for deep foundation pits includes a vertically arranged frame and a walking ladder set within the frame. The frame is provided with attachment points, and a cable is adapted at each attachment point. One end of the cable is attached to the slope surface, and the other end of the cable is provided with a trigger. A monitoring device is set on the frame below the attachment point. The monitoring device is used to detect the distance between itself and the trigger. Both the monitoring device and the trigger are located inside the frame.

[0007] Preferably, the attachment point includes a rotatable guide wheel.

[0008] Preferably, the attachment point is formed by the mesh of a protective netting disposed on the frame.

[0009] Preferably, the trigger includes a trigger rod, the frame is provided with a limiting slide, and the end of the trigger is adapted to the limiting slide.

[0010] Preferably, the monitoring element is disposed within the limiting slide.

[0011] Preferably, the monitoring element is provided at both the upper and lower ends of the trigger element.

[0012] Preferably, the monitoring device includes a trigger switch.

[0013] Preferably, there are two symmetrically arranged limiting slides.

[0014] Preferably, at least two cables are spaced apart on the trigger rod, and the connection points of the cables on the slope surface are on the same horizontal line.

[0015] The beneficial effects of this invention are: when the safety passage tilts, the distance between the trigger and the monitoring element changes, thereby determining whether the posture of the safety passage is abnormal. Compared with the prior art, in this invention, both the monitoring element and the trigger are set inside the frame, which avoids the influence of the pit working environment on the monitoring accuracy and achieves the goal of reducing the likelihood of missed or false alarms due to cage tilting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0017] Figure 2 This is a schematic diagram of the limiting slide.

[0018] Figure 3 for Figure 2 Enlarged view of part A.

[0019] Reference numerals in the attached drawings: 1. Frame; 2. Walking ladder; 3. Hook point; 4. Cable; 5. Trigger; 6. Monitoring component; 7. Guide wheel; 8. Trigger rod; 9. Limiting slide; 10. Slope surface; 11. Connecting unit; 12. Protective net. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figures 1 to 3 As shown, an intelligent deep foundation pit safety passage includes a frame 1 vertically installed beside the slope surface 10 of the foundation pit. The frame 1 may be equipped with a walking ladder 2, similar to existing technologies. For example, the frame 1 may be formed by splicing together connecting units 11 stacked vertically, and adjacent connecting units 11 may be fixed together by bolts.

[0022] The frame 1 has a mounting point 3, at which a cable 4 is fitted. One end of the cable 4 is fixed to the slope surface 10, for example, an anchor point can be pre-embedded on the slope surface 10, and the end of the cable 4 is connected to the anchor point by hanging. The other end of the cable 4 extends beyond the mounting point 3 into the interior of the frame 1, and a trigger element 5 is also provided on this end face. A monitoring element 6 is also provided on the frame 1 below the trigger element 5, and the monitoring element 6 is adapted to detect the distance between itself and the trigger element 5. In particular, the monitoring element 6 is also located inside the frame 1.

[0023] It can be imagined that when frame 1 tilts, since the end of cable 4 is relatively fixed on one side of slope surface 10, a relative displacement will occur between trigger 5 and frame 1. At this time, monitoring element 6 can detect the change in distance between itself and trigger 5, thereby determining whether frame 1 has tilted. Furthermore, since both monitoring element 6 and trigger 5 are located inside frame 1, the influence of the foundation pit working environment on monitoring accuracy can be avoided.

[0024] In some embodiments, protective netting 12 is also provided on the four sides of the frame 1, which can prevent people from falling and also provide a relatively isolated space inside the frame 1.

[0025] Typically, a certain gap is left between adjacent protective nets 12, and the hook point 3 preferably includes a guide wheel 7 rotatably mounted at the top of the protective net 12. Alternatively, the hook point 3 can also be provided directly by the mesh of the protective net 12. Two limiting slides 9 are symmetrically arranged in the lower middle part of the protective net 12, and the aforementioned triggering element 5 includes a trigger rod 8, with both ends of the trigger rod 8 respectively adapted to the two limiting slides 9.

[0026] When the frame 1 tilts, the trigger rod 8 will slide accordingly within the limiting slide 9. For example, the monitoring component 6 may include two trigger switches respectively located at the upper and lower ends of the limiting slide 9. For example, when the frame 1 tilts away from the slope surface 10, the trigger rod 8 will move upward relative to the limiting slide 9 until the trigger rod 8 presses the trigger switch located at the upper end. The trigger switch sends an electrical signal to the controller, and then the controller controls the alarm to sound an alarm. When the frame 1 tilts closer to the slope surface 10, the trigger rod will descend relative to the limiting slide 9. The subsequent triggering process is similar to the above and will not be described in detail here.

[0027] The limiting slide 9 can be specifically constructed with a "U"-shaped cross-section to facilitate the lateral insertion of the trigger rod 8. This construction also provides a more enclosed operating environment for the monitoring component 6. In fact, the monitoring component 6 is not limited to the aforementioned trigger switch; any existing monitoring device capable of detecting changes in distance between two components can be used as a reference.

[0028] In addition, each connecting unit 11 can be adapted to the hook point 3 and the cable 4. After the safety passage tilts, in extreme cases, the frame 1 may tilt and collapse. The contact between the top of the trigger rod 8 and the limit slide 9 can counteract the tilting tendency of the frame 1, providing valuable time for personnel evacuation.

[0029] In a preferred embodiment, at least two cables 4 are spaced apart on the trigger rod 8, and the connection points of the cables 4 on the slope surface 10 are adapted to be on the same horizontal line. It is conceivable that if the slope surface 10 deforms and settles, the displacement of the ends of the cables 4 on the slope surface 10 will differ, causing the trigger rod 8 to deflect. This allows for a preliminary assessment that the slope surface 10 has deformed, facilitating a more intuitive and timely discovery by personnel passing through the safety passage, enabling timely implementation of appropriate measures.

[0030] Working principle:

[0031] If the safety passage tilts, the distance between the trigger 5 and the monitoring element 6 will change, thus determining whether the safety passage's posture is abnormal. Since both the trigger 5 and the monitoring element 6 are located within the safety passage, the impact of the external environment on detection accuracy can be reduced.

[0032] If the trigger lever 8 presses the trigger switch, indicating that the safety passage is tilting, the trigger switch will send an electrical signal to the controller, and the controller will then control the alarm to sound an alarm.

[0033] The engagement of the trigger lever 8 and the limiting slide 9 counteracts the tilting tendency of the frame 1, providing valuable time for personnel evacuation.

[0034] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. An intelligent safety passage for deep foundation pits, comprising a vertically arranged frame (1) and a walking ladder (2) disposed within the frame (1), characterized in that: The frame (1) is provided with a mounting point (3), and a cable (4) is adapted at the mounting point (3). One end of the cable (4) is attached to the slope surface, and the other end of the cable (4) is provided with a trigger (5). A monitoring element (6) is provided on the frame (1) below the mounting point (3). The monitoring element (6) is used to detect the distance between itself and the trigger (5). Both the monitoring element (6) and the trigger (5) are located inside the frame (1).

2. The intelligent deep foundation pit safety passage according to claim 1, characterized in that: The attachment point (3) includes a rotatable guide wheel (7).

3. The intelligent deep foundation pit safety passage according to claim 1, characterized in that: The mounting point (3) is formed by the mesh of the protective netting set on the frame (1).

4. The intelligent deep foundation pit safety passage according to claim 1, characterized in that: The trigger (5) includes a trigger rod (8), and a limiting slide (9) is provided on the frame (1). The end of the trigger (5) is adapted to the limiting slide (9).

5. The intelligent deep foundation pit safety passage according to claim 4, characterized in that: The monitoring component (6) is installed inside the limiting slide (9).

6. The intelligent deep foundation pit safety passage according to claim 1, characterized in that: The monitoring element (6) is provided at both the upper and lower ends of the trigger element (5).

7. The intelligent deep foundation pit safety passage according to any one of claims 1-6, characterized in that: The monitoring device (6) includes a trigger switch.

8. The intelligent deep foundation pit safety passage according to claim 4, characterized in that: The limiting slide (9) is symmetrically arranged in two parts.

9. The intelligent deep foundation pit safety passage according to claim 4, characterized in that: At least two cables (4) are spaced apart on the trigger rod (8), and the connection points of several cables (4) on the slope surface are on the same horizontal line.

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