Manual hole digging anti-collapse device

Abstract

The invention provides a manual hole digging anti-sloughing device, and belongs to the field of manual hole digging construction, the manual hole digging anti-sloughing device comprises an anti-sloughing steel shell which is arranged in a hole and can be opened and closed and a lifting truss arranged on the ground, the anti-sloughing steel shell is connected with a safety device assembly, and the anti-sloughing steel shell and the safety device assembly are both connected with the lifting truss. The anti-collapse steel shell comprises a plurality of shell bodies capable of being closed and connecting assemblies, the shell bodies are movably connected through the connecting assemblies, the connecting assemblies are connected with a power device, and the power device is connected with an automatic deformation monitoring system. In a normal working state, the anti-collapse steel shell is in an open state; when abnormal displacement of a certain ring of manual hole digging protection wall occurs, the emergency system is triggered, the anti-collapse steel shell starts a closing mode, and casualty accidents caused by collapse of underground constructors are prevented.

Description

Technical Field

[0001] The invention belongs to the field of manual hole digging construction, and in particular relates to a manual hole digging anti-collapse device. Background Art

[0002] Manual bored piles are a traditional construction technology that is still used in many projects. However, due to factors such as the decrease in soil side friction caused by groundwater, shrinkage of retaining walls, and uneven self-stability of the excavated surface soil, casualties caused by manual bored pile collapse have occurred repeatedly. How to set up a personal safety protection system for underground personnel before danger occurs has become an urgent problem to be solved.

[0003] CN 210421978 U discloses a protective device consisting of a vent pipe and a plurality of rotatably locked steel blocking sheets, which is placed at the mouth or inside of a bored pile well to prevent casualties caused by falling objects. However, the device needs to be set up on a wall protection structure. When the well wall itself sinks or tilts and deforms, the device will fall with it, and safety risks cannot be completely avoided.

[0004] CN 211816204 U discloses a manual bored pile anti-smashing device consisting of a triangular mounting frame, a steel cable and a circular metal protective net. However, the triangular mounting frame needs to be erected at the wellhead, and the fixed length of the steel cable cannot prevent the risk of falling objects within the height range of the metal protective net and the excavation working surface. Moreover, the device does not take into account the problem of hypoxia that may occur to underground workers.

[0005] CN 212428154 U discloses a device for preventing falling objects from a height by artificially digging holes, which is composed of a worm gear, a worm, a steel wire rope, two hinged movable net bodies and a support column under the net. The device can adjust the height of the protective net according to the depth of the excavation surface by the worm gear, the worm and the steel wire rope above the wellhead. However, when the staff go up and down the well and excavate, they will frequently open and close the movable net body, and need to repeatedly take and put the support rod and the switch positioning pin under the net body, which is not convenient to use.

[0006] CN 213448458 U discloses a manual bored pile anti-collapse device composed of a suspended casing, a folding connecting rod, a plurality of isosceles triangle guard plates, a pulling member and a compressed oxygen self-rescuer. When encountering danger, the underground personnel activate the pulling member, and under the action of the connecting rod, the guard plate is closed to form a cone structure to protect the safety of the underground personnel. The trapped personnel in the underground can use the compressed oxygen self-rescuer to rescue themselves from hypoxia. Then, the casing has a large deadweight, and the suspension measures need to provide a greater lifting force, which increases the equipment cost investment. The protective device requires the underground staff to actively activate the protective measures. When the danger comes, risk judgment and measures will consume a certain amount of time, which is not conducive to the protection of personnel. In addition, the compressed oxygen self-rescuer can only provide oxygen supply to the underground personnel within a limited time, and the rescue time is often uncontrollable and there are risks. When the underground personnel are unconscious, the rescue personnel need to first clean the soil above the casing, then lift the casing to the ground, and finally manually pull the trapped personnel to the ground, which is not conducive to on-site rescue.

[0007] In view of this, a manual hole digging anti-collapse device is provided to address the shortcomings and applicability limitations of the prior art. Summary of the invention

[0008] The present invention aims at the technical problems existing in the prior art and provides an artificial hole digging anti-collapse device with simple structure, convenient operation, stable device and comprehensive functions.

[0009] The present invention adopts the following technical solutions to solve the above problems: A device for preventing artificially excavated holes from collapsing comprises an openable and closable anti-collapse steel shell arranged in a hole and a lifting truss arranged on the ground, the anti-collapse steel shell is connected to a safety device assembly, the anti-collapse steel shell and the safety device assembly are both connected to the lifting truss, the anti-collapse steel shell comprises a plurality of closable shells and connecting assemblies, the shells are movably connected via connecting assemblies, the connecting assemblies are connected to a power device, and the power device is connected to an automatic deformation monitoring system.

[0010] Furthermore, a horizontal steel ring is sleeved on the outer side of the shell, and the horizontal steel ring is connected to multiple groups of lifting steel strands, and the other end of the lifting steel strands is connected to the lifting truss.

[0011] Furthermore, each group of the lifting steel strands passes through a horizontal steel ring and is connected to a lifting truss, and two of the lifting steel strands are connected and fixed by a U-shaped fastener.

[0012] Furthermore, the lifting trusses are triangular steel trusses, and each of the lifting trusses is provided with a turntable connected to the lifting steel strands.

[0013] Furthermore, the safety device assembly includes a seat belt buckle and an oxygen mask, and the seat belt buckle and the oxygen mask are both fixed to the inner wall of the shell.

[0014] Furthermore, the oxygen mask is connected to an oxygen pipeline, the oxygen pipeline is connected to an oxygen supply device, and the oxygen supply device is arranged on the ground.

[0015] Furthermore, the connecting assembly includes a plurality of sets of driving gears and driven gears, and the driving gears are connected to the power device.

[0016] Furthermore, the number of the lifting trusses is 4, and the lifting trusses are evenly arranged at the hole openings to ensure that the anti-collapse steel shell maintains a level state.

[0017] Furthermore, the power device adopts an electric motor, and the electric motor maintains a wired or wireless data connection with the automatic deformation monitoring system.

[0018] Furthermore, an alarm device is provided at the hole entrance, and when the anti-collapse steel shell is closed, the alarm device is triggered to promptly remind ground personnel to organize rescue.

[0019] The beneficial effects of the present invention are: 1. The present invention adopts a movable anti-collapse steel shell, which does not affect the excavation operation when opened and can ensure the safety of underground personnel when closed.

[0020] 2. The ground lifting truss of the present invention is controlled on four sides to ensure that the anti-collapse steel shell is in a horizontal state and works normally.

[0021] 3. The safety belt buckle and oxygen mask settings can pull the trapped people to the ground and avoid the risk of hypoxia for the trapped people underground.

[0022] 4. The synchronous operation of multiple lifting equipment, wall deformation monitoring, anti-collapse steel shell opening and closing and ground alarm devices form an intelligent linkage protection system to ensure the safety of underground personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the present invention in a normal state; Figure 2 It is a schematic diagram of the structure of the present invention in an emergency state; Figure 3 This is the general assembly drawing of the anti-collapse device; Figure 4 This is a schematic diagram of the structure of the anti-collapse steel shell; Figure 5 It is a schematic diagram of the connection structure between the horizontal steel ring and the lifting steel strand.

[0025] In the figure: 1-anti-collapse steel shell; 101-shell; 102-connecting assembly; 1021-driving gear; 1022-driven gear; 103-power unit; 104-horizontal steel ring; 2-lifting truss; 201-turntable; 3-safety device assembly; 301-safety belt buckle; 302-oxygen mask; 303-oxygen pipeline; 4-lifting steel strand; 5-U-shaped fastener; 6-ground; 7-artificial earth excavation range; 8-artificial hole protection wall. DETAILED DESCRIPTION

[0026] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "top", "bottom", "vertical" and the like indicate orientations or state relationships based on the orientations or state relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The present invention arranges a lifting truss 2 on the ground and lowers a movable anti-collapse steel shell 1 into the manhole. Under normal working conditions, the anti-collapse steel shell 1 is in an open state. When an abnormal displacement occurs in a certain ring of the artificial hole protection wall, the emergency system is triggered and the anti-collapse steel shell 1 starts the closing mode to prevent casualties of underground construction personnel due to landslides.

[0029] like Figure 1 , Figure 2 As shown, an artificial earth excavation range 7 is selected at the bottom of the ground 1, and artificial digging operations are carried out within the artificial earth excavation range 7. Artificial digging hole protective walls 8 are set in sections. The artificial digging hole anti-collapse device provided by the present invention is arranged inside the artificial digging hole protective wall 8, including an anti-collapse steel shell 1 that can be opened and closed in the hole and a lifting truss 2 arranged on the ground. The anti-collapse steel shell 1 is connected to a safety device assembly 3, and the anti-collapse steel shell 1 and the safety device assembly 3 are both connected to the lifting truss 2. An alarm device is also provided at the hole entrance.

[0030] like Figure 3 , Figure 4As shown, the anti-collapse steel shell 1 includes a plurality of closable shells 101 and connecting components 102, the shells 101 are movably connected through the connecting components 102, the connecting components 102 are connected to a power device 103, the power device 103 is connected to an automatic deformation monitoring system, a horizontal steel ring 104 is sleeved on the outer side of the shell 101, the horizontal steel ring 104 is connected to a plurality of groups of lifting steel strands 4, and the other end of the lifting steel strands 4 is connected to the lifting truss 2, as shown in FIG. Figure 5 As shown, each set of lifting steel strands 4 passes through the horizontal steel ring 104 and is connected to the lifting truss 2, and the two lifting steel strands 4 are connected and fixed by U-shaped fasteners 5.

[0031] In this embodiment, the shell 101 adopts two quarter-sphere steel shells, the connecting component 102 includes multiple sets of driving gears 1021 and driven gears 1022, the driving gears 1021 and the driven gears 1022 are respectively connected to the two shells 101 through steel shafts, the power device 103 adopts an electric motor, the driving gear 1021 is connected to the electric motor, and the electric motor maintains a wired or wireless data connection with the automated deformation monitoring system.

[0032] The driving gear 1021 and the driven gear 1022 mesh with each other, ensuring the synchronous opening and closing of the two shells 101; the hoisting steel strand 4 passes through the horizontal steel ring 104, driving the anti-collapse steel shell 1 to rise and fall freely with the horizontal steel ring 104; the motor maintains a wired or wireless data link with the automatic deformation monitoring system. Under normal working conditions, the anti-collapse steel shell is in an open state, which does not affect the staff going up and down the well and out of the well. When the wall protection monitoring data is abnormal and exceeds the set deformation index, the motor is started through the control system to close the anti-collapse steel shell 1 to form a convex hemispherical shell to prevent the underground personnel from being hit or buried by the collapse of the well wall soil; at the same time, the closure of the steel shell triggers the wellhead alarm device, which promptly reminds the ground personnel to organize rescue.

[0033] The safety device assembly 3 includes a seat belt buckle 301 and an oxygen mask 302, both of which are fixed to the inner wall of the shell 101, and the oxygen mask 302 is connected to an oxygen pipeline 303, and the oxygen pipeline 303 is connected to an oxygen supply device, which is arranged on the ground.

[0034] like Figure 3 As shown, the safety belt buckle 301 is connected to the horizontal steel ring 104. During the whole process of underground operation, the underground personnel need to connect their bodies to the safety belt buckle 301 through the safety belt. When a landslide occurs and personnel rescue is carried out, the trapped personnel underground can be pulled to the ground through the safety belt; the oxygen mask 302 is connected to the ground oxygen supply device through the oxygen pipeline 303, and the trapped personnel can use the oxygen mask to avoid the risk of hypoxia caused by the uncontrollable rescue time.

[0035] The lifting trusses 2 are triangular steel trusses, and each lifting truss 2 is provided with a turntable 201 connected to the lifting steel strand 4. In this embodiment, the number of lifting trusses 2 is 4, and the 4 groups of lifting trusses 2 are evenly arranged at the hole opening to ensure that the anti-collapse steel shell 1 remains horizontal.

[0036] Four sets of triangular steel trusses are set on the ground at the hole of the artificial bored pile. The horizontal steel ring 104 is connected to the lifting steel strand 4 by a U-shaped fastener 5. The rotating disk 201 in the lifting truss 2 is rotated to drive the lifting steel strand 4 to extend and retract, thereby controlling the lifting and lowering of the anti-collapse steel shell 1; Figure 3 As shown, the oxygen pipeline 303 is connected in parallel with the lifting steel strand 4, and the oxygen supply device is connected to the oxygen mask 302 under the anti-collapse steel shell 1; four sets of ground safety device lifting trusses 2 are controlled by computers to ensure that the anti-collapse steel shell 1 maintains a horizontal level and ensure the normal operation of the anti-collapse device.

[0037] The steps for using this device are as follows: 1) Construct the lifting truss 2 of the anti-collapse system on the ground. According to the foundation bearing calculation, if necessary, take the foundation reinforcement treatment under the foundation of the lifting truss 2; 2) The open anti-collapse steel shell 1 is lowered into the well by hoisting the steel strand 4, and the anti-collapse steel shell 1 is maintained at a position 2m above the excavation surface at the bottom of the well. Under normal conditions, the anti-collapse steel shell 1 does not affect the underground workers going up and down the well or out of the well; 3) An automated deformation monitoring system is installed on the bored pile retaining wall 8. When the retaining wall monitoring data is abnormal and exceeds the set deformation index, the system controls the motor to start, driving the gear to rotate, so that the anti-collapse steel shell 1 is closed to form an upward convex hemispherical shell to prevent the underground personnel from being injured or buried by the collapse of the well wall soil; 4) People trapped underground can wear oxygen masks 302 under the anti-collapse steel shell to avoid the risk of hypoxia caused by uncontrollable rescue time; 5) The trapped person underground needs to connect his body to the safety belt buckle 301 through the safety belt. When the danger of landslide occurs and personnel rescue is carried out, the trapped person underground can be pulled to the ground through the safety belt.

[0038] The above embodiments describe the present invention in detail, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A device for preventing collapse of artificial holes, characterized in that: The invention comprises an openable and closable anti-collapse steel shell (1) arranged in a hole and a lifting truss (2) arranged on the ground, wherein the anti-collapse steel shell (1) is connected to a safety device component (3), and both the anti-collapse steel shell (1) and the safety device component (3) are connected to the lifting truss (2). The anti-collapse steel shell (1) comprises a plurality of closable shells (101) and connecting components (102), wherein the shells (101) are movably connected to each other via connecting components (102), and the connecting components (102) are connected to a power device (103), and the power device (103) is connected to an automatic deformation monitoring system.

2. The artificial hole-digging anti-collapse device according to claim 1, characterized in that: A horizontal steel ring (104) is sleeved on the outer side of the shell (101), and the horizontal steel ring (104) is connected to a plurality of groups of lifting steel strands (4), and the other ends of the lifting steel strands (4) are connected to the lifting truss (2).

3. The artificial hole-digging anti-collapse device according to claim 2, characterized in that: Each group of the hoisting steel strands (4) passes through a horizontal steel ring (104) and is connected to the lifting truss (2); two of the hoisting steel strands (4) are connected and fixed via a U-shaped fastener (5).

4. The artificial hole-digging anti-collapse device according to claim 2, characterized in that: The lifting trusses (2) are triangular-shaped steel trusses, and each of the lifting trusses (2) is provided with a turntable (201) connected to the lifting steel strands (4) inside.

5. The artificial hole-digging anti-collapse device according to claim 1 or 2, characterized in that: The safety device assembly (3) comprises a safety belt buckle (301) and an oxygen mask (302), and the safety belt buckle (301) and the oxygen mask (302) are both fixed to the inner wall of the housing (101).

6. The artificial hole-digging anti-collapse device according to claim 5, characterized in that: The oxygen mask (302) is connected to an oxygen pipeline (303), and the oxygen pipeline (303) is connected to an oxygen supply device, and the oxygen supply device is arranged on the ground.

7. The artificial hole-digging anti-collapse device according to any one of claims 1 to 6, characterized in that: The connection assembly (102) comprises a plurality of sets of driving gears (1021) and driven gears (1022), and the driving gears (1021) are connected to the power device (103).

8. The artificial hole-digging anti-collapse device according to any one of claims 1 to 6, characterized in that: The number of the lifting trusses (2) is four, and the four groups of lifting trusses (2) are evenly arranged at the openings of the holes to ensure that the anti-collapse steel shell (1) remains horizontal.

9. The artificial hole-digging anti-collapse device according to any one of claims 1 to 6, characterized in that: The power device (3) adopts an electric motor, and the electric motor maintains a wired or wireless data connection with the automatic deformation monitoring system.

10. The artificial hole-digging anti-collapse device according to any one of claims 1 to 6, characterized in that: An alarm device is provided at the hole opening, and when the anti-collapse steel shell (1) is closed, the alarm device is triggered to promptly alert ground personnel to organize rescue.

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