Miniature pile foundation pit support monitoring device and use method thereof

Abstract

The application provides a micro pile foundation pit supporting monitoring device and a use method thereof, and belongs to the technical field of foundation pit supporting, and comprises a base, a box, a controller, a data monitor, a first double-ear hinge shaft and a telescopic supporting mechanism, wherein: the box is arranged on the upper side of the base; the controller is arranged in the box and is connected with a wireless module and a gyroscope module in telecommunication; the data monitor is connected with the controller in telecommunication; the first double-ear hinge shaft is provided with four and is fixedly connected around the box, the shaft center side of the first double-ear hinge shaft is fixedly connected with an angle sensor, the side away from the box of the first double-ear hinge shaft is fixedly connected with a telescopic displacement sensor, and the angle sensor and the telescopic displacement sensor are connected with the controller in telecommunication; real-time monitoring of the inside of the foundation pit is realized, the deformation condition of the inside of the foundation pit can be accurately obtained, the staff can conveniently maintain and repair according to the deformation condition, the construction quality of the project is ensured, possible dangers can be warned, and the life safety of the staff is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of foundation pit support, and particularly relates to a micro pile foundation pit support monitoring device and a use method thereof. BACKGROUND

[0002] Foundation pit support is a support, reinforcement and protection measure for the side wall of a foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. There are various forms of foundation pit support structures, and the role of the foundation pit support structure is to prevent underground water and soil outside the foundation pit from flowing into the foundation pit.

[0003] The prior art discloses a building foundation pit displacement monitoring support device based on capacitance change, the right side of the baffle is fixedly connected with a horizontal rod and a connecting plate respectively, the connecting plate is hingedly connected with a moving rod through a connecting rod, the right end of the horizontal rod is fixedly connected with a supporting plate, the left side of the supporting plate is fixedly connected with a first spring, the inside of the supporting plate is movably connected with a main fixed column, the right side of the supporting plate is fixedly connected with a mounting frame, the right inner wall of the mounting frame is fixedly connected with a second spring, the left end of the second spring is fixedly connected with a pressing plate, the right side of the pressing plate is fixedly connected with a push rod, and the right end of the push rod is fixedly connected with a stop block. The building foundation pit displacement monitoring support device based on capacitance change has the effect that the baffle moves to the right and pushes the stop block to the right after the foundation pit has a large displacement, achieves the purpose of automatic detection, reduces the use of electronic components, increases the reliability of the device and reduces the cost.

[0004] The structural strength of the foundation pit support structure is limited. When the deformation of the foundation pit is large, the deformation of the foundation pit support structure is also large, and the foundation pit support structure may be broken, thereby causing a construction accident. The support structure is a supporting plate that needs to be inserted into a large depth, and the structure is relatively complex, so it is difficult to perform real-time pressure monitoring, the monitoring data is inaccurate, the displacement of the side wall of the foundation pit may occur, a large error in the size of the building foundation pit may occur, and the construction quality and engineering safety are affected. Therefore, a micro pile foundation pit support monitoring device and a use method thereof are provided. SUMMARY

[0005] The purpose of the present application is to provide a micro pile foundation pit support monitoring device and a use method thereof, which aims to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A micro pile foundation pit support monitoring device, comprising:

[0008] a base;

[0009] a box body arranged on the upper side of the base;

[0010] a controller arranged in the box, which is electrically connected with the wireless module and the gyroscope module;

[0011] a data monitor electrically connected with the controller;

[0012] four first double-ear hinges arranged around the box and fixedly connected with the box, each of which is fixedly connected with an angle sensor on one side and a telescopic displacement sensor on the other side, and the angle sensor and the telescopic displacement sensor are electrically connected with the controller; and

[0013] four telescopic supporting mechanisms arranged on the side of the first double-ear hinges away from the box, the ends of which are connected to the foundation pit support plates, the telescopic displacement sensors detect the distance change data between the telescopic supporting mechanisms and the first double-ear hinges, and the angle sensors detect the angle change data of the telescopic supporting mechanisms, so as to realize real-time monitoring of the foundation pit support.

[0014] As a preferred scheme of the present application, each of the telescopic supporting mechanisms comprises:

[0015] a telescopic rod fixedly connected to the side of the first double-ear hinge away from the box, the circumferential surface of which is sleeved with a spring;

[0016] a steel plate, one side of which is fixedly connected to the elongated end of the telescopic rod, and the other side of which is fixedly connected with two inner rods;

[0017] two outer cylinders, which are slidingly connected to the surfaces of the corresponding inner rods;

[0018] a second double-ear hinge fixedly connected to the ends of the two outer cylinders; and

[0019] a lead screw assembly arranged on the lower side of the outer cylinder, which adjusts the distance between the second double-ear hinge and the first double-ear hinge through the principle of lead screw movement, so as to adapt to foundation pits of different widths.

[0020] As a preferred scheme of the present application, the lead screw assembly comprises:

[0021] a lead screw, which is rotatably connected to the side of the steel plate close to the second double-ear hinge, one end of which penetrates through the steel plate and is fixedly connected with a rotating handle;

[0022] a sliding sleeve, which is slidingly connected between the two outer cylinders;

[0023] a limiting bearing seat, which is fixedly connected to the lower side of the sliding sleeve, and the other end of the lead screw is rotatably connected in the limiting bearing seat;

[0024] a reinforcing plate, which is fixedly connected between the two outer cylinders; and

[0025] A screw rod sleeve is fixedly connected to the lower side of the reinforcing plate and is threadedly connected to the circumferential surface of the lead screw.

[0026] As a preferred scheme of the present application, the detection end of each telescopic displacement sensor is in contact with the adjacent steel plate, a detection groove is arranged at the side shaft center of each first double-lug hinge shaft, and the detection end of each angle sensor is fixedly connected in the corresponding detection groove.

[0027] As a preferred scheme of the present application, a first ground spike is fixedly connected to the bottom of the base, a plurality of splicing parts are arranged at the top of the base and are fixedly spliced with each other, a female sleeve is fixedly connected to the bottom of the box body, a male tip is fixedly connected to the top of the uppermost splicing part, and the male tip is fixedly connected in the female sleeve.

[0028] As a preferred scheme of the present application, each splicing part is composed of a plurality of straight rods, a reinforcing plate is welded between adjacent straight rods, a sleeving part is arranged at each end of each straight rod, adjacent sleeving parts can be inserted into each other, and a positioning hole is arranged on the surface of each sleeving part.

[0029] As a preferred scheme of the present application, a storage battery is fixedly connected in the box body, and the controller is in electrical connection with the storage battery.

[0030] As a preferred scheme of the present application, a box cover is detachably connected to the top of the box body, a photovoltaic panel is fixedly connected to the top of the box cover, the photovoltaic panel is in electrical connection with the storage battery, and a warning lamp is fixedly connected to each corner of the box cover.

[0031] As a preferred scheme of the present application, an angle lug is fixedly connected to each corner of the box body, a steel rope is fixedly connected to the outward side of each angle lug, and a second ground spike is fixedly connected to the end of each steel rope.

[0032] As a preferred scheme of the present application, the method comprises the following steps.

[0033] S1, measuring the width data of the foundation pit, inserting the first ground spike into the ground, locating the base at the center of the foundation pit, splicing the plurality of splicing parts in sequence, and then fixing the male tip in the female sleeve to fix the box body in the foundation pit.

[0034] S2, detecting the angle and position of the box body by the gyroscope module, and controlling the box body to be in a horizontal state.

[0035] S3, rotate the handle to drive the lead screw to rotate, the lead screw drives the screw sleeve to move, the screw sleeve drives the reinforcing plate to move, the reinforcing plate drives the outer cylinder to move, finally drives the second double ear hinge shaft to move, to control the extension length of the outer cylinder, adjust the distance between the second double ear hinge shaft and the first double ear hinge shaft, and fix the second double ear hinge shaft with the foundation pit support plate;

[0036] S4, sequentially fix the four second double ear hinge shafts with the foundation pit support plate, detect the initial data of the distance between the steel plate through the telescopic displacement sensor, and record the initial data of the angle between the second double ear hinge shaft and the first double ear hinge shaft through the angle sensor, and send the initial data to the data monitor through the wireless module;

[0037] S5, if the inner wall of the foundation pit is deformed under force, the foundation pit support plate will be deformed, and then the second double ear hinge shaft will compress the telescopic rod to move, record the change data detected by the telescopic displacement sensor, the angle sensor and the gyroscope module at this time, and send the change data to the data monitor;

[0038] S6, compare the initial data and the change data through the data monitor, when the error between the initial data and the change data reaches a threshold value, start the warning light through the controller, the warning light emits alarm sound and flashing light to warn the staff that the foundation pit may be dangerous.

[0039] Compared with the prior art, the beneficial effects of the present application are:

[0040] 1, in the scheme, the initial data of the distance between the steel plate is detected through the telescopic displacement sensor, and the initial data of the angle between the second double ear hinge shaft and the first double ear hinge shaft is recorded through the angle sensor, and the initial data is sent to the data monitor through the wireless module, if the inner wall of the foundation pit is deformed under force, the foundation pit support plate will be deformed, and then the second double ear hinge shaft will compress the telescopic rod to move, record the change data detected by the telescopic displacement sensor, the angle sensor and the gyroscope module at this time, and send the change data to the data monitor, compare the initial data and the change data through the data monitor, when the error between the initial data and the change data reaches a threshold value, start the warning light through the controller, the warning light emits alarm sound and flashing light to warn the staff that the foundation pit may be dangerous, realize the real-time monitoring of the inside of the foundation pit, can accurately get the deformation condition of the inside of the foundation pit, facilitate the staff to maintain and repair according to the deformation condition, ensure the construction quality of the project, and give early warning to the possible danger, improve the life safety of the staff.

[0041] 2、The telescopic support mechanism in the scheme is distributed around the box body, and is used for supporting the foundation pit support plates around, when in use, the lead screw is driven to rotate through rotating the handle, and finally the second double ear hinge shaft is moved to control the extension length of the outer cylinder, the distance between the second double ear hinge shaft and the first double ear hinge shaft is adjusted, the overall length of the telescopic support mechanism can be adjusted, different width foundation pits can be flexibly adapted, the application range is wider, the four second double ear hinge shafts are fixed with the foundation pit support plates, the supporting effect can be enhanced, and the inside of the foundation pit is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0042] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, illustrate the application, and are used to explain the application together with the embodiments of the application, and do not constitute a limitation on the application.

[0043] In the drawings:

[0044] Figure 1 It is a perspective view of the application;

[0045] Figure 2 It is a bottom view of the application;

[0046] Figure 3 It is a data monitor of the application;

[0047] Figure 4 It is a structure diagram of the protection box of the application;

[0048] Figure 5 It is an explosion view of the protection box of the application;

[0049] Figure 6 It is a telescopic support mechanism diagram of the application;

[0050] Figure 7 It is an explosion view of the telescopic support mechanism of the application;

[0051] Figure 8 It is an explosion view of the screw rod assembly of the application;

[0052] Figure 9 It is an explosion view of the base and the protection box of the application;

[0053] Figure 10 It is a structure diagram of the splicing part of the application.

[0054] The figure label explanation: 1, base; 2, box; 3, data monitor; 4, controller; 5, wireless module; 6, gyroscope module; 7, battery; 8, box cover; 9, photovoltaic panel; 10, warning light; 11, first double ear hinge shaft; 1101, detection groove; 12, telescopic rod; 13, spring; 14, angle sensor; 15, inner rod; 16, outer cylinder; 17, second double ear hinge shaft; 18, lead screw; 19, limit bearing seat; 20, sliding sleeve; 21, reinforcing plate; 22, screw sleeve; 23, rotating handle; 24, telescopic displacement sensor; 25, female sleeve; 26, splicing part; 2601, straight rod; 2602, sleeving part; 2603, reinforcing plate; 2604, positioning hole; 27, sub tip; 28, first ground thorn; 29, angle ear; 30, steel rope; 31, second ground thorn; 32, steel plate. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0056] EMBODIMENT

[0057] Please refer to Figures 1-10 The technical solutions provided by the embodiment are as follows:

[0058] A micro pile foundation pit support monitoring device, comprising a base 1, a box 2, a controller 4, a data monitor 3, a first double ear hinge shaft 11 and a telescopic support mechanism, wherein: the box 2 is arranged on the upper side of the base 1; the controller 4 is arranged in the box 2 and is electrically connected with a wireless module 5 and a gyroscope module 6; the data monitor 3 is electrically connected with the controller 4; the first double ear hinge shaft 11 is provided with four and is fixedly connected around the box 2, the shaft center side of which is fixedly connected with an angle sensor 14, and the side away from the box 2 is fixedly connected with a telescopic displacement sensor 24, both of which are electrically connected with the controller 4; the telescopic support mechanism is provided with four groups and is located on the side away from the box 2 of the first double ear hinge shaft 11, the tail end of which is connected to the foundation pit support plate, the distance change data between the telescopic support mechanism and the first double ear hinge shaft 11 is detected by the telescopic displacement sensor 24, and the angle change data of the telescopic support mechanism is detected by the angle sensor 14, so as to realize real-time monitoring of the foundation pit support.

[0059] In specific embodiments of the present application, the foundation pit support plate is not shown in the commonly used structure of the foundation pit support, which is attached to the inner wall of the foundation pit to play a supporting role. In use, first, the position of the base 1 is determined, the first ground spike 28 is driven into the ground, and the base 1 is located near the center of the foundation pit. Then the box body 2 is installed on the upper side of the base 1, and the telescopic support mechanism is distributed around the box body 2 for supporting the foundation pit support plates around. In use, the extension length of the outer cylinder 16 is controlled by rotating the handle 23 to drive the lead screw 18 to rotate, and finally the second double ear hinge shaft 17 is moved to adjust the distance between the second double ear hinge shaft 17 and the first double ear hinge shaft 11. The overall length of the telescopic support mechanism can be adjusted to flexibly adapt to foundation pits of different widths, and the application range is wider. The four second double ear hinge shafts 17 are fixed with the foundation pit support plates to strengthen the supporting effect and make the inside of the foundation pit more stable. The initial data of the distance between the telescopic displacement sensor 24 and the steel plate 32 is recorded, and the initial data of the angle between the second double ear hinge shaft 17 and the first double ear hinge shaft 11 is recorded by the angle sensor 14. The initial data is sent to the data monitor 3 through the wireless module 5. If the inner wall of the foundation pit is deformed under stress, the foundation pit support plate will be deformed, which will cause the second double ear hinge shaft 17 to compress the telescopic rod 12 to move. The change data detected by the telescopic displacement sensor 24, the angle sensor 14 and the gyroscope module 6 at this time is recorded and sent to the data monitor 3. The data monitor 3 compares the initial data and the change data. When the error between the initial data and the change data reaches a threshold value, the warning light 10 is started by the controller 4, and the warning light 10 emits an alarm sound and flashing light to alert the staff that the foundation pit may be dangerous. Real-time monitoring of the inside of the foundation pit is realized, the deformation of the inside of the foundation pit can be accurately obtained, the staff can maintain and repair according to the deformation, the construction quality of the project is ensured, potential dangers are warned, and the safety of the staff is improved.

[0060] Specifically, each telescopic support mechanism includes:

[0061] The telescopic rod 12 is fixedly connected to the side of the first double ear hinge shaft 11 away from the box body 2, and the circumferential surface thereof is sleeved with the spring 13;

[0062] The steel plate 32 is fixedly connected to the extension end of the telescopic rod 12 on one side, and two inner rods 15 are fixedly connected to the other side;

[0063] The outer cylinder 16 is provided with two and is slidably connected to the surfaces of the corresponding inner rods 15;

[0064] The second double ear hinge shaft 17 is fixedly connected to the ends of the two outer cylinders 16; and

[0065] A screw rod assembly is arranged at the lower side of the outer cylinder 16, which adjusts the distance between the second double ear hinge shaft 17 and the first double ear hinge shaft 11 through the principle of screw rod movement, so as to adapt to different widths of the foundation pit; the screw rod assembly comprises:

[0066] A lead screw 18 is rotationally connected to the steel plate 32 at the side close to the second double ear hinge shaft 17, one end of the lead screw 18 penetrates through the steel plate 32 and is fixedly connected with a rotary handle 23;

[0067] A sliding sleeve 20 is slidingly connected between the two outer cylinders 16;

[0068] A limiting bearing seat 19 is fixedly connected to the lower side of the sliding sleeve 20, and the other end of the lead screw 18 is rotationally connected in the limiting bearing seat 19;

[0069] A reinforcing plate 21 is fixedly connected between the two outer cylinders 16; and

[0070] A screw rod sleeve 22 is fixedly connected to the lower side of the reinforcing plate 21, and is threadedly connected to the circumferential surface of the lead screw 18.

[0071] In the specific embodiment of the present application, the first double ear hinge shaft 11 and the second double ear hinge shaft 17 cooperate with the telescopic support mechanism to adjust the angle, the telescopic rod 12 is provided with two, the telescopic displacement sensor 24 is located between the two telescopic rods 12, the telescopic rod 12 is located between the steel plate 32 and the first double ear hinge shaft 11, the second double ear hinge shaft 17 is fixed with the foundation pit support plate, the initial distance data of the steel plate 32 is monitored through the telescopic displacement sensor 24, the angle sensor 14 is located at the side close to the detection groove 1101, the detection end of the angle sensor 14 is located in the detection groove 1101, the angle sensor 14 can detect the initial angle data after the second double ear hinge shaft 17 is fixed, when the foundation pit side support plate is deformed or displaced due to pressure, the pressure is transmitted to the steel plate 32, at this time the spring 13 is deformed, the telescopic rod 12 is also contracted, the distance between the steel plate 32 and the first double ear hinge shaft 11 is reduced, the distance change data of the steel plate 32 can be monitored through the telescopic displacement sensor 24, when the distance change data is too large compared with the initial data, it can be known that the foundation pit side support plate may be deformed, and similarly, the overall position of the second double ear hinge shaft 17 and the first double ear hinge shaft 11 is deflected, the overall angle change data of the telescopic support mechanism can be monitored in real time through the angle sensor 14, and the support plate may be deformed by comparing the overall angle change data with the initial data, the double detection mode effectively monitors the internal situation of the foundation pit in real time;

[0072] Preferably, a lead screw 18 is arranged at the lower side of the outer cylinder 16, the lead screw 18 is driven to rotate by rotating the knob 23, the lead screw 18 drives the screw sleeve 22 to move, the screw sleeve 22 drives the reinforcing plate 21 to move, the reinforcing plate 21 drives the outer cylinder 16 to move, and finally drives the second double-ear hinge shaft 17 to move, so as to control the extension length of the outer cylinder 16, adjust the distance between the second double-ear hinge shaft 17 and the first double-ear hinge shaft 11, and adjust the overall length of the telescopic support mechanism, so that the telescopic support mechanism can be flexibly adapted to different widths of foundation pits, and the application range is wider.

[0073] Specifically, the detection end of each telescopic displacement sensor 24 is in contact with the adjacent steel plate 32, and the side shaft center of each first double-ear hinge shaft 11 is provided with a detection groove 1101, and the detection end of each angle sensor 14 is fixedly connected in the corresponding detection groove 1101.

[0074] In specific embodiments of the present application, referring to Figure 7 , the telescopic displacement sensor 24 is located between the steel plate 32 and the first double-ear hinge shaft 11, when the steel plate 32 is pressed to extrude the telescopic rod 12 and the spring 13, the steel plate 32 moves towards the first double-ear hinge shaft 11, and the displacement data of the steel plate 32 can be monitored in real time through the telescopic displacement sensor 24, and the detection end of the angle sensor 14 is located in the detection groove 1101, when the angle of the steel plate 32 changes, the shaft center of the first double-ear hinge shaft 11 is driven to rotate, and the overall angle change data of the telescopic support mechanism can be monitored in real time through the angle sensor 14.

[0075] Specifically, the bottom of the base 1 is fixedly connected with a first ground spike 28, the top of the base 1 is provided with a plurality of splicing parts 26, the plurality of splicing parts 26 are fixedly spliced with each other, the bottom of the box body 2 is fixedly connected with a female sleeve 25, the top of the uppermost splicing part 26 is fixedly connected with a male tip 27, the male tip 27 is fixedly connected in the female sleeve 25, each splicing part 26 is composed of a plurality of straight rods 2601, a reinforcing plate 2603 is welded between adjacent straight rods 2601, each straight rod 2601 is provided with a sleeving part 2602 at both ends, adjacent sleeving parts 2602 can be inserted with each other, and a positioning hole 2604 is formed in the surface of each sleeving part 2602.

[0076] In specific embodiments of the present application, the first ground spike 28 is used to fix the position of the base 1, the first ground spike 28 is driven into the ground, the adjacent splicing parts 26 are designed to be spliced up and down, and then are fixed by bolts, the number of splicing parts 26 can be assembled according to the depth of the foundation pit, the height of the box body 2 can be flexibly configured, and the staff can use conveniently.

[0077] Specifically, the box body 2 is fixedly connected with a storage battery 7, and the controller 4 is electrically connected with the storage battery 7.

[0078] In the specific embodiments of the present application, the battery 7 is used to provide power for the controller 4, the wireless module 5, the gyroscope module 6, the telescopic displacement sensor 24, the angle sensor 14 and the warning light 10.

[0079] Specifically, the top of the box body 2 is detachably connected with a box cover 8, the top of the box cover 8 is fixedly connected with a photovoltaic panel 9, the photovoltaic panel 9 is in electrical connection with the battery 7, and the four corners of the box cover 8 are all fixedly connected with warning lights 10.

[0080] In the specific embodiments of the present application, the box cover 8 is fixed on the top of the box body 2 by bolts, the photovoltaic panel 9 converts light energy into electric energy to charge the battery 7, thereby prolonging the endurance of the battery 7, and the warning light 10 can emit alarm sound and flashing light to remind the workers.

[0081] Specifically, the four corners of the box body 2 are all fixedly connected with angle ears 29, the outer side of each angle ear 29 is fixedly connected with a steel rope 30, and the end of each steel rope 30 is fixedly connected with a second ground thorn 31.

[0082] In the specific embodiments of the present application, the steel rope 30 is located at the four corners of the box body 2, and the second ground thorn 31 is also punched into the ground to reinforce the stability of the box body 2 and avoid the box body 2 from falling down.

[0083] A use method of a micro pile foundation pit support monitoring device, comprising the following steps:

[0084] S1, measuring the width data of the foundation pit, inserting the first ground thorn 28 into the ground to make the base 1 located at the center inside the foundation pit, sequentially splicing a plurality of splicing parts 26, and then fixing the sub-shoot 27 in the female sleeve 25 to fix the box body 2 inside the foundation pit;

[0085] S2, detecting the angle and position of the box body 2 by the gyroscope module 6 to control the box body 2 to be in a horizontal state;

[0086] S3, rotating the rotating handle 23 to drive the lead screw 18 to rotate, the lead screw 18 drives the lead screw sleeve 22 to move, the lead screw sleeve 22 drives the reinforcing plate 21 to move, the reinforcing plate 21 drives the outer cylinder 16 to move, and finally drives the second double ear hinge shaft 17 to move, so as to control the extension length of the outer cylinder 16, adjust the distance between the second double ear hinge shaft 17 and the first double ear hinge shaft 11, and fix the second double ear hinge shaft 17 with the foundation pit support plate;

[0087] S4, sequentially fixing the four second double ear hinge shafts 17 with the foundation pit support plate, recording the initial data of the distance between the telescopic displacement sensor 24 and the steel plate 32, and recording the initial data of the angle between the second double ear hinge shaft 17 and the first double ear hinge shaft 11 by the angle sensor 14, and sending the initial data to the data monitor 3 through the wireless module 5;

[0088] S5, if the inner wall of the foundation pit is deformed by force, the foundation pit support plate will be deformed, and then the second double ear hinge shaft 17 will compress the telescopic rod 12 to move, record the change data detected by the telescopic displacement sensor 24, the angle sensor 14 and the gyroscope module 6 at this time, and send the change data to the data monitor 3;

[0089] S6, by comparing the initial data and the change data through the data monitor 3, when the error between the initial data and the change data reaches a threshold value, the warning light 10 is started through the controller 4, the warning light 10 emits alarm sound and flashing light to warn the workers that the foundation pit may be dangerous.

[0090] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for the purpose of limiting the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified to the technical scheme recorded in the foregoing each embodiment, or equivalent replacement of part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A micro pile foundation pit support monitoring device, characterized in that, The utility model relates to a kind of real-time monitoring device for foundation pit support, including: Base (1); Box (2) is arranged on the upper side of base (1); Controller (4) is arranged in box (2), and wireless module (5) and gyroscope module (6) are electrically connected with controller (4); Data monitor (3) is electrically connected with controller (4); First double ear hinge shaft (11) is provided with four and is fixedly connected to the four around box (2), and the shaft center side is fixedly connected with angle sensor (14), and the side away from box (2) is fixedly connected with telescopic displacement sensor (24), and angle sensor (14) and telescopic displacement sensor (24) are electrically connected with controller (4);And Telescopic support mechanism is provided with four groups and is located at the side away from box (2) of first double ear hinge shaft (11), and its tail end is connected to foundation pit support plate respectively, and it detects the distance change data between telescopic support mechanism and first double ear hinge shaft (11) by telescopic displacement sensor (24), and it detects the angle change data of telescopic support mechanism by angle sensor (14), to realize the real-time monitoring of foundation pit support; Each telescopic support mechanism includes: Telescopic rod (12) is fixedly connected to the side away from box (2) of first double ear hinge shaft (11), and the circumferential surface is sleeved with spring (13); Steel sheet (32) is fixedly connected to the elongated end of telescopic rod (12) on one side, and the other side is fixedly connected with two inner rods (15); Outer cylinder (16) is provided with two and is slidingly connected to the surface of corresponding inner rod (15) respectively; Second double ear hinge shaft (17) is fixedly connected to the tail end of two outer cylinders (16);And Lead screw assembly is arranged on the lower side of outer cylinder (16), and the distance between second double ear hinge shaft (17) and first double ear hinge shaft (11) is adjusted by the principle of lead screw movement, to adapt to the foundation pit of different width.

2. The micropile foundation pit support monitoring device according to claim 1, characterized in that, The lead screw assembly includes: Lead screw (18) is rotatably connected to the side of steel sheet (32) close to second double ear hinge shaft (17), and one end penetrates steel sheet (32) and is fixedly connected with rotary handle (23); Slip bushing (20) is slidingly connected between two outer cylinders (16); Limit bearing seat (19) is fixedly connected to the lower side of slip bushing (20), and the other end of lead screw (18) is rotatably connected in limit bearing seat (19); Reinforcing plate (21) is fixedly connected between two outer cylinders (16);And Lead screw sleeve (22) is fixedly connected to the lower side of reinforcing plate (21), and is screw-connected to the circumferential surface of lead screw (18).

3. A micropile foundation pit support monitoring device according to claim 2, characterized by, The detection end of each telescopic displacement sensor (24) is in contact with the steel sheet (32) close to each other, and detection groove (1101) is arranged at the side of each first double ear hinge shaft (11) shaft center, and the detection end of each angle sensor (14) is fixedly connected in corresponding detection groove (1101).

4. The micropile foundation pit support monitoring device according to claim 3, characterized in that, The bottom of the base (1) is fixedly connected with a first ground spike (28), the top of the base (1) is provided with a plurality of splicing parts (26), the plurality of splicing parts (26) are fixedly spliced with each other, the bottom of the box body (2) is fixedly connected with a female sleeve (25), the top of the uppermost splicing part (26) is fixedly connected with a male tip (27), and the male tip (27) is fixedly connected in the female sleeve (25).

5. A micropile foundation pit support monitoring device according to claim 4, characterized by, Each splicing part (26) is composed of a plurality of straight rods (2601), reinforcing plates (2603) are welded between adjacent straight rods (2601), both ends of each straight rod (2601) are provided with sleeve joint parts (2602), adjacent sleeve joint parts (2602) can be inserted with each other, and a positioning hole (2604) is formed in the surface of each sleeve joint part (2602).

6. A micropile foundation pit support monitoring device according to claim 5, characterized by, The box body (2) is fixedly connected with a storage battery (7), and the controller (4) is in electrical signal connection with the storage battery (7).

7. A micropile foundation pit support monitoring device according to claim 6, characterized by, The top of the box body (2) is detachably connected with a box cover (8), the top of the box cover (8) is fixedly connected with a photovoltaic panel (9), the photovoltaic panel (9) is in electrical signal connection with the storage battery (7), and the four corners of the box cover (8) are fixedly connected with warning lights (10).

8. A micropile foundation pit support monitoring device according to claim 7, characterized by, The four corners of the box body (2) are fixedly connected with corner ears (29), the outer sides of each corner ear (29) are fixedly connected with steel ropes (30), and the ends of each steel rope (30) are fixedly connected with second ground spikes (31).

9. A method for using a micro-pile foundation pit support monitoring device, applied to the micro-pile foundation pit support monitoring device of claim 8, characterized in that, The method comprises the following steps: S1, measuring the width data of the foundation pit, inserting the first ground spike (28) into the ground, placing the base (1) at the center of the foundation pit, splicing the plurality of splicing parts (26) in sequence, then fixing the male tip (27) in the female sleeve (25), and fixing the box body (2) in the foundation pit; S2, detecting the angle and position of the box body (2) through the gyroscope module (6), and controlling the box body (2) to be in a horizontal state; S3, rotating the rotating handle (23) to drive the lead screw (18) to rotate, the lead screw (18) drives the screw sleeve (22) to move, the screw sleeve (22) drives the reinforcing plate (21) to move, the reinforcing plate (21) drives the outer cylinder (16) to move, and finally drives the second double-ear hinge shaft (17) to move, so as to control the extension length of the outer cylinder (16), adjust the distance between the second double-ear hinge shaft (17) and the first double-ear hinge shaft (11), and fix the second double-ear hinge shaft (17) and the foundation pit support plate; S4, fixing the four second double-ear hinge shafts (17) and the foundation pit support plate in sequence, detecting the initial distance between the telescopic displacement sensor (24) and the steel plate (32), and recording the initial angle between the second double-ear hinge shaft (17) and the first double-ear hinge shaft (11) through the angle sensor (14), and sending the initial data to the data monitor (3) through the wireless module (5). S5, if the inner wall of the foundation pit is stressed and deformed, the foundation pit support plate will be deformed, and then the second double ear hinge shaft (17) will compress the telescopic rod (12) to move, record the change data detected by the telescopic displacement sensor (24), the angle sensor (14) and the gyroscope module (6) at this time, and send the change data to the data monitor (3); S6, through the data monitor (3) to compare the initial data and the change data, when the error between the initial data and the change data reaches a threshold value, the warning light (10) is started through the controller (4), the warning light (10) emits alarm sound and flashing light, so as to warn the workers that the foundation pit may be dangerous.

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