CN113593198A - Early warning device and method for unsafe behaviors of foundation pit construction site - Google Patents
Early warning device and method for unsafe behaviors of foundation pit construction site Download PDFInfo
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- CN113593198A CN113593198A CN202110824639.1A CN202110824639A CN113593198A CN 113593198 A CN113593198 A CN 113593198A CN 202110824639 A CN202110824639 A CN 202110824639A CN 113593198 A CN113593198 A CN 113593198A
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- foundation pit
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/22—Status alarms responsive to presence or absence of persons
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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Abstract
The invention discloses an unsafe behavior early warning device and method for a foundation pit construction site, and the device comprises a main body rod, wherein the lower end face of the main body rod is fixedly connected with a first round seat, a second round seat is also arranged below the first round seat, the central position of the lower end face of the first round seat is fixedly connected with a ball sleeve, the upper end face of the second round seat is fixedly connected with a universal ball, the universal ball is arranged in the ball sleeve, springs are arranged between the side positions of the first round seat and the second round seat, and a fixing assembly is arranged on the second round seat and used for installing and fixing the second round seat; the safety of the foundation pit can be detected in real time through the arranged copper ball and the conductive cylinder, when the soil layer around the foundation pit collapses, the main body rod can be deflected to realize an early warning function, and an alarm can be given out at the first time when the soil layer around the foundation pit collapses to remind foundation pit constructors to evacuate or reinforce the foundation pit in time, so that the safety of foundation pit construction is greatly improved.
Description
Technical Field
The invention relates to the technical field of construction safety, in particular to an early warning device and method for unsafe behaviors of a foundation pit construction site.
Background
The foundation pit refers to a space below the ground excavated for the construction of a building foundation and a basement. The foundation pit belongs to temporary engineering and has the function of providing a space so that the basic masonry operation can be carried out according to the position specified by design. And excavating soil pits at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, and waterproof drainage work is performed. The person who is not excavated can use the method of putting side slope to make the earth slope stable, and the size of the slope is determined according to the relevant construction project. The urban bridge engineering foundation pit is mainly used for bearing platforms, bridge abutments and enlarged foundation construction and generally comprises two types of non-support and support.
In the process of foundation pit construction, in order to ensure safety, non-workers are not allowed to be close to the foundation pit, in the existing foundation pit protection, warning boards or warning lines are generally arranged around the foundation pit, but the method has a very little safety effect, only has a warning effect, cannot prevent the non-workers from being close to or entering the foundation pit, and cannot simultaneously treat the personnel close to the foundation pit in front of a site caregiver through early warning.
Based on the problems, the device and the method for early warning the unsafe behavior of the foundation pit construction site are provided.
Disclosure of Invention
The invention aims to provide an early warning device and method for unsafe behaviors of a foundation pit construction site, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the unsafe behavior early warning device comprises a main body rod, wherein a first round seat is fixedly connected to the lower end face of the main body rod, a second round seat is further arranged below the first round seat, a ball sleeve is fixedly connected to the central position of the lower end face of the first round seat, a universal ball is fixedly connected to the upper end face of the second round seat, the universal ball is mounted in the ball sleeve, springs are mounted between the side positions of the first round seat and the second round seat, and a fixing assembly is arranged on the second round seat and used for mounting and fixing the second round seat;
the upper end face of the main body rod is fixedly connected with a fixed cylinder, the upper end of the fixed cylinder is fixedly connected with a mounting box, the inner lower end face of the mounting box is provided with a storage battery, the upper end face of the mounting box is internally provided with a controller, the mounting box is also provided with an early warning assembly for giving an alarm when dangerous behaviors occur, and the fixed cylinder is also internally provided with a trigger assembly for triggering the early warning assembly;
the mounting box up end is fixedly connected with mounting bracket still, installs two solar cell panel that are used for battery charging on the mounting bracket, four multisection telescopic links at least of equal fixedly connected with in main part pole both sides all are equipped with the grating pole between four multisection telescopic link flexible nodes with one side, and equal fixedly connected with hollow tube between four multisection telescopic link flexible ends, all be equipped with on the hollow tube and be used for carrying out the firm subassembly that stabilizes to the multisection telescopic link.
As a further scheme of the invention: the fixing assembly comprises a ground inserting drill rod, the ground inserting drill rod is fixedly connected to the center of the lower end face of the second round seat, a plurality of guide pieces are fixedly connected to the ground inserting drill rod, and pedals are fixedly connected to the two sides of the second round seat.
As a still further scheme of the invention: the early warning subassembly includes the connecting rod, and two connecting rods are fixed connection respectively in the position of mounting box both sides, and the warning light is all installed to the one end that the mounting box was kept away from to two connecting rods, still install two buzzers on the mounting box, two buzzer symmetries set up.
As a still further scheme of the invention: the trigger assembly comprises a lifting rope, one end of the lifting rope is arranged in the middle of the lower end face of the mounting box, the lower end of the lifting rope is connected with a copper ball, a position fixedly connected conductive cylinder located in the copper ball is arranged in the fixed cylinder, a limiting rope is further arranged between the lower end faces of the copper ball and the fixed cylinder, and the limiting rope is in a loose state.
As a still further scheme of the invention: the stabilizing assembly comprises a strip-shaped groove and an auxiliary drilling rod, the strip-shaped groove is formed in the lower end of one side, far away from the multi-section telescopic rod, of the hollow pipe, the auxiliary drilling rod is connected into the hollow pipe in a sliding mode, the upper end of the auxiliary drilling rod is fixedly connected with a press-down pedal, the press-down pedal penetrates through the strip-shaped groove and is connected with the strip-shaped groove in a sliding mode, and a hanging buckle assembly used for fixing the press-down pedal is further arranged on the hollow pipe.
As a still further scheme of the invention: the hanging buckle assembly comprises an elastic rope, the elastic rope is fixedly connected to the position, above the strip-shaped groove, of the hollow pipe, and the lower end of the elastic rope is fixedly connected with a hanging buckle used for hanging a press pedal.
As a still further scheme of the invention: the upper end surfaces of the pedal and the press pedal are respectively provided with a strip-shaped anti-skidding pattern.
As a still further scheme of the invention: the controller is electrically connected with the alarm lamp, the buzzer, the storage battery, the copper ball and the conductive cylinder.
As a still further scheme of the invention: the fixed cylinder is a PVC transparent hard tube.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the copper ball, the lifting rope and the conductive cylinder are matched with the ball sleeve, the universal ball and the spring, an alarm can be given when a person crosses over the multi-section telescopic rod and the grid rod, when the early warning device is damaged, the main body rod can be inclined under the action of the ball sleeve, the spring and the universal ball when the early warning device is used, the copper ball is connected with the conductive cylinder under the action of the lifting rope and the gravity to be in contact with a circuit when the main body rod is inclined, then the alarm lamp and the buzzer are started through the controller, the buzzer gives an alarm sound after the alarm lamp and the buzzer are started, and the alarm lamp flickers to remind a caretaker in a construction site to carry out treatment in advance, so that the dangerous condition caused by the fact that a non-working person approaches the foundation pit can be effectively avoided;
the copper ball and the conductive cylinder that set up simultaneously still can carry out real-time detection to foundation ditch security, and when the soil layer takes place to sink around the foundation ditch, main part pole can take place crooked and then realize the early warning function, can take place to send out the police dispatch newspaper the very first time when sinking around the foundation ditch to remind the foundation ditch constructor to withdraw in time or consolidate the foundation ditch, make the great improvement of security of foundation ditch construction.
2. The multi-section telescopic rod and the grating rod arranged on the telescopic node of the multi-section telescopic rod are convenient to fold and unfold, so that the occupied space of the device is greatly reduced when the device is disassembled after foundation pit construction is completed, and the device is convenient to transport and transfer.
3. According to the solar energy storage device, the solar cell panel is arranged on the upper end face of the mounting box, so that the storage battery can be continuously used for storing electricity when the device is used, an external power supply is not needed when the device is used, and a complicated process when wires are pulled and connected is avoided.
4. According to the invention, the auxiliary drill rod and the pressing pedal are arranged on the hollow pipe, so that the device can be fixed in an auxiliary manner when the device is used, and the device is more stable when being arranged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the main body lever of the present invention.
FIG. 3 is a schematic diagram of the structure of the universal ball and ball sleeve of the present invention.
Fig. 4 is a schematic structural view of a multi-section telescopic rod and a grating rod in the invention.
FIG. 5 is a schematic view of the structure of the stabilizing member of the present invention.
FIG. 6 is an enlarged view of the auxiliary pin of the present invention.
Fig. 7 is a schematic view of the internal structure of the fixed cylinder and the mounting box of the present invention.
FIG. 8 is a schematic view of the multi-stage collapsible rod of the present invention shown in a retracted configuration.
Fig. 9 is a schematic structural view of the present invention arranged around a foundation pit.
Wherein: 1. a main body lever; 2. a fixed cylinder; 3. a buzzer; 4. a solar panel; 5. an alarm light; 6. a multi-section telescopic rod; 7. a grid rod; 8. a hollow tube; 9. a foot pedal; 10. inserting a ground borer; 11. a guide piece; 12. auxiliary drill rods; 13. a connecting rod; 14, a mounting frame; 15. mounting a box; 16. a spring; 17. a first circular seat; 18. a ball sleeve; 19. a universal ball; 20. a second circular seat; 21. a controller; 22. a storage battery; 23. a conductive barrel; 24. a lifting rope; 25. copper balls; 26. a limiting rope; 27. pressing down a pedal; 28. an elastic cord; 29. hanging and buckling; 30. a strip-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, in an embodiment of the present invention, an unsafe behavior early warning device for a foundation pit construction site includes a main body rod 1, a first circular seat 17 is fixedly connected to a lower end surface of the main body rod 1, a second circular seat 20 is further disposed below the first circular seat 17, a ball sleeve 18 is fixedly connected to a center position of the lower end surface of the first circular seat 17, a universal ball 19 is fixedly connected to an upper end surface of the second circular seat 20, the universal ball 19 is mounted in the ball sleeve 18, a spring 16 is mounted between side positions of the first circular seat 17 and the second circular seat 20, and a fixing component is disposed on the second circular seat 20 and used for mounting and fixing the second circular seat 20;
the fixing assembly comprises a ground inserting borer 10, the ground inserting borer 10 is fixedly connected to the center of the lower end face of the second round seat 20, a plurality of guide pieces 11 are fixedly connected to the ground inserting borer 10, and pedals 9 are fixedly connected to two sides of the second round seat 20; according to the invention, through the arranged pedal 9, force can be applied when the ground-inserting borer 10 is inserted into soil, so that the ground-inserting borer 10 is more conveniently inserted, and meanwhile, the arranged guide piece 11 can ensure that the ground-inserting borer 10 is more stably inserted.
The upper end face of the main body rod 1 is fixedly connected with a fixed cylinder 2, the upper end of the fixed cylinder 2 is fixedly connected with a mounting box 15, the lower end face inside the mounting box 15 is provided with a storage battery 22, the upper end face inside the mounting box 15 is provided with a controller 21, the mounting box 15 is also provided with an early warning assembly for giving an alarm when dangerous behaviors occur, the early warning assembly comprises connecting rods 13, the two connecting rods 13 are respectively and fixedly connected to the positions on two sides of the mounting box 15, one ends of the two connecting rods 13, far away from the mounting box 15, are provided with alarm lamps 5, the mounting box 15 is also provided with two buzzers 3, and the two buzzers 3 are symmetrically arranged; the controller 21 is electrically connected with the alarm lamp 5, the buzzer 3, the storage battery 22, the copper ball 25 and the conductive cylinder 23;
a trigger component for triggering the early warning component is further arranged in the fixed cylinder 2; the trigger assembly comprises a lifting rope 24, one end of the lifting rope 24 is arranged in the middle of the lower end face of the mounting box 15, the lower end of the lifting rope 24 is connected with a copper ball 25, a conductive cylinder 23 is fixedly connected to the position, located in the copper ball 25, in the fixing cylinder 2, a limiting rope 26 is further arranged between the copper ball 25 and the lower end face of the fixing cylinder 2, and the limiting rope 26 is in a loose state; the fixed cylinder 2 is a PVC transparent hard tube.
According to the invention, the copper ball 25, the lifting rope 24 and the conductive cylinder 23 are matched with the ball sleeve 18, the universal ball 19 and the spring 16, an alarm can be given when a person crosses over the multi-section telescopic rod 6 and the grille rod 7, when the early warning device is damaged, the main rod 1 can be inclined under the action of the ball sleeve 18, the spring 16 and the universal ball 19 when the early warning device is used when the person wants to go over from the multi-section telescopic rod 6 to get close to a foundation pit, the copper ball 25 can be in contact with the conductive cylinder 23 under the action of the lifting rope 24 and the gravity to be connected with a circuit when the main rod 1 is inclined, then the alarm lamp 5 and the buzzer 3 are started through the controller 21, after the alarm lamp 5 and the buzzer 3 are started, the buzzer 3 gives an alarm sound, and meanwhile, the alarm lamp 5 flickers so as to remind a caretakers of a construction site to come forward, and the dangerous situation caused by non-workers approaching the foundation pit can be effectively avoided.
The upper end face of the mounting box 15 is also fixedly connected with the mounting frame 14, and the two solar panels 4 used for charging the storage battery 22 are mounted on the mounting frame 14.
At least four multi-section telescopic rods 6 are fixedly connected to two sides of the main rod 1, a grid rod 7 is arranged between telescopic nodes of the four multi-section telescopic rods 6 on the same side, hollow tubes 8 are fixedly connected between telescopic ends of the four multi-section telescopic rods 6, and stabilizing assemblies for stabilizing the multi-section telescopic rods 6 are arranged on the hollow tubes 8; according to the invention, the multi-section telescopic rod 6 and the grating rod 7 arranged on the telescopic node of the multi-section telescopic rod 6 are convenient to fold and unfold the grating rod 7, so that the occupied space of the device is greatly reduced when the device is dismantled after foundation pit construction is finished, and the device is convenient to transport and transfer.
The stabilizing assembly comprises a strip-shaped groove 30 and an auxiliary brazing rod 12, the strip-shaped groove 30 is formed in the lower end of one side, away from the multi-section telescopic rod 6, of the hollow tube 8, the auxiliary brazing rod 12 is connected in the hollow tube 8 in a sliding mode, the upper end of the auxiliary brazing rod 12 is also fixedly connected with a lower pressing pedal 27, the lower pressing pedal 27 penetrates through the strip-shaped groove 30 and is connected with the strip-shaped groove 30 in a sliding mode, and a hanging buckle assembly used for fixing the lower pressing pedal 27 is further arranged on the hollow tube 8; the upper end surfaces of the pedal plate 9 and the lower pressing pedal plate 27 are provided with strip-shaped anti-skidding patterns; the auxiliary drill rod 12 and the press pedal 27 arranged on the hollow pipe 8 can be used for auxiliary fixation of the device when the device is used, so that the device is more stable when being arranged.
The hanging buckle component comprises an elastic rope 28, the elastic rope 28 is fixedly connected to the position, above the strip-shaped groove 30, of the hollow pipe 8, and the lower end of the elastic rope 28 is fixedly connected with a hanging buckle 29 used for hanging the pressing pedal 27.
According to the invention, the auxiliary drill rod 12 can be put into the hollow tube 8 during the transfer of the device through the elastic rope 28 and the hanging buckle 29, and the elastic rope 28 and the hanging buckle 29 are adopted for fixing, so that the influence on the transfer of the device caused by the fact that the auxiliary drill rod 12 slides out of the hollow tube 8 during the transfer of the device is avoided.
The working principle of the invention is as follows: when the invention is used, a plurality of the devices are arranged around a foundation pit, the ground inserting drill rods 10 and the guide sheets 11 are inserted into the soil to be fixed and the main body rod 1 is in a vertical state during arrangement, the arranged foot pedals 9 can conveniently insert the ground inserting drill rods 10 into the soil, then the hollow pipes 8 at two sides are respectively pulled to ensure that a plurality of sections of telescopic rods 6 are completely extended to protect and prevent personnel from approaching the foundation pit, then the hanging buckles 29 are respectively taken down, the auxiliary drill rods 12 are inserted into the soil to be fixed in an auxiliary way through pressing the foot pedals 27 downwards, when the invention is used, when personnel want to overturn from the plurality of sections of telescopic rods 6 or want to destroy the early warning device, the main body rod 1 can be inclined under the action of the ball sleeve 18, the spring 16 and the universal ball 19, when the main body rod 1 is inclined, the copper ball 25 can be contacted with the conductive cylinder 23 under the action of the lifting rope 24 and gravity to be connected with a power circuit, then the warning lamp 5 and the buzzer 3 are started through the controller 21, after the alarm lamp 5 and the buzzer 3 are started, the buzzer 3 gives out alarm sound, and the alarm lamp 5 flickers at the same time, so that a site caregiver can be reminded of processing before, and dangerous conditions caused by non-working personnel approaching a foundation pit can be effectively avoided; meanwhile, the solar cell panel 4 arranged on the upper end face of the mounting box 15 can continuously store electricity for the storage battery 22 when the device is used, so that the device does not need an external power supply when in use, and a complex process when a wire is connected in a pulling mode is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. Although the present description is described in terms of embodiments, not every embodiment includes only one technical solution, and such description of the embodiments is merely for clarity, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (10)
1. The utility model provides a foundation ditch construction site unsafe behavior early warning device, includes main part pole (1), terminal surface fixedly connected with first round seat (17) under main part pole (1), its characterized in that: a second round seat (20) is further arranged below the first round seat (17), a ball sleeve (18) is fixedly connected to the center of the lower end face of the first round seat (17), a universal ball (19) is fixedly connected to the upper end face of the second round seat (20), the universal ball (19) is installed in the ball sleeve (18), springs (16) are installed between the lateral positions of the first round seat (17) and the second round seat (20), and a fixing assembly is arranged on the second round seat (20) and used for installing and fixing the second round seat (20);
the upper end face of the main body rod (1) is fixedly connected with a fixed cylinder (2), the upper end of the fixed cylinder (2) is fixedly connected with a mounting box (15), a storage battery (22) is arranged on the lower end face inside the mounting box (15), a controller (21) is arranged on the upper end face inside the mounting box (15), an early warning assembly is further arranged on the mounting box (15) and used for giving an alarm when dangerous behaviors occur, and a triggering assembly used for triggering the early warning assembly is further arranged in the fixed cylinder (2);
mounting box (15) up end is fixedly connected with mounting bracket (14) still, installs two solar cell panel (4) that are used for charging for battery (22) on mounting bracket (14), equal four multisection telescopic links (6) of all fixedly connected with in main part pole (1) both sides all are equipped with grid pole (7) between four multisection telescopic links (6) flexible nodes with one side, equal fixedly connected with hollow tube (8) between four multisection telescopic links (6) flexible ends, all be equipped with on hollow tube (8) and be used for carrying out the firm subassembly that stabilizes multisection telescopic link (6).
2. The unsafe behavior early warning device of a foundation pit construction site according to claim 1, wherein the fixing component comprises a ground inserting drill rod (10), the ground inserting drill rod (10) is fixedly connected to the center of the lower end face of the second round seat (20), a plurality of guide plates (11) are fixedly connected to the ground inserting drill rod (10), and foot pedals (9) are fixedly connected to both sides of the second round seat (20).
3. The early warning device for the unsafe behavior of a foundation pit construction site according to claim 1, wherein the early warning component comprises two connecting rods (13), the two connecting rods (13) are respectively and fixedly connected to positions on two sides of the mounting box (15), one ends of the two connecting rods (13) far away from the mounting box (15) are respectively provided with the warning lamp (5), the mounting box (15) is further provided with two buzzers (3), and the two buzzers (3) are symmetrically arranged.
4. The unsafe behavior early warning device for foundation pit construction sites according to claim 3, wherein the trigger assembly comprises a lifting rope (24), one end of the lifting rope (24) is arranged in the middle of the lower end face of the mounting box (15), the lower end of the lifting rope (24) is connected with a copper ball (25), a conductive cylinder (23) is fixedly connected to the position of the copper ball (25) in the fixing cylinder (2), a limiting rope (26) is further arranged between the copper ball (25) and the lower end face of the fixing cylinder (2), and the limiting rope (26) is in a loose state.
5. The early warning device of unsafe behaviors of foundation pit construction sites according to claim 1, wherein the stabilizing component comprises a strip-shaped groove (30) and an auxiliary rod (12), the strip-shaped groove (30) is formed in the lower end of one side of the hollow pipe (8) far away from the multi-section telescopic rod (6), the auxiliary rod (12) is slidably connected in the hollow pipe (8), a pressing pedal (27) is fixedly connected to the upper end of the auxiliary rod (12), the pressing pedal (27) penetrates through the strip-shaped groove (30) and is slidably connected with the strip-shaped groove (30), and a hanging and buckling component for fixing the pressing pedal (27) is further arranged on the hollow pipe (8).
6. The unsafe behavior early warning device of a foundation pit construction site according to claim 5, wherein the hanging buckle component comprises an elastic rope (28), the elastic rope (28) is fixedly connected to the position, above the strip-shaped groove (30), of the hollow pipe (8), and a hanging buckle (29) for hanging the lower pressing pedal (27) is fixedly connected to the lower end of the elastic rope (28).
7. A pre-warning device for unsafe behaviors of a foundation pit construction site according to claim 6, wherein the upper end surfaces of the pedal (9) and the press-down pedal (27) are provided with anti-slip ribs.
8. A pre-warning device for unsafe behavior of a foundation pit construction site according to claim 4, wherein the controller (21) is electrically connected with the alarm lamp (5), the buzzer (3), the storage battery (22), the copper ball (25) and the conductive cylinder (23).
9. A device for early warning of unsafe behavior of a foundation pit construction site according to claim 1, wherein the fixed cylinder (2) is a PVC transparent hard pipe.
10. An early warning method for an unsafe behavior early warning device of a foundation pit construction site according to any one of claims 1 to 9, comprising the steps of:
step 1, arranging the device around a foundation pit, inserting a ground inserting drill rod (10) and a guide sheet (11) into soil for fixing and enabling a main body rod (1) to be in a vertical state during arrangement, and inserting the ground inserting drill rod (10) into soil conveniently by a pedal (9);
step 2, respectively pulling the hollow pipes (8) at the two sides to enable the multiple sections of telescopic rods (6) to completely extend out for protection, preventing personnel from approaching the foundation pit, respectively taking down the hanging buckles (29), and inserting the auxiliary drill rods (12) into the soil for auxiliary fixing by pressing down the pedals (27);
step 3, when the early warning device is used, when a person wants to climb over the multi-section telescopic rod (6) or wants to destroy the early warning device, the main body rod (1) can be inclined under the action of the ball sleeve (18), the spring (16) and the universal ball (19), when the main body rod (1) is inclined, the copper ball (25) can be in contact with the conductive cylinder (23) under the action of the lifting rope (24) and the gravity to be in a connection circuit, then the alarm lamp (5) and the buzzer (3) are started through the controller (21), after the alarm lamp (5) and the buzzer (3) are started, the buzzer (3) gives out alarm sound, the alarm lamp (5) flickers at the same time, and then a construction site caregiver can be reminded to deal with the situation before, and the dangerous situation caused by non-workers approaching a foundation pit can be effectively avoided.
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| CN202110824639.1A CN113593198B (en) | 2021-07-21 | 2021-07-21 | Early warning device and method for unsafe behaviors of foundation pit construction site |
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| CN202110824639.1A CN113593198B (en) | 2021-07-21 | 2021-07-21 | Early warning device and method for unsafe behaviors of foundation pit construction site |
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