Deformation monitoring device for supporting structure of deep and large foundation pit

Abstract

The utility model provides a deep and large foundation pit supporting structure deformation monitoring device which comprises supporting structures, a detection copper wire arranged between the two supporting structures and two detection copper rings close to the supporting structures on the two sides, in the normal state, the detection copper rings do not make contact with the detection copper wire, and wires at the lower ends of the detection copper rings are connected to the middle of the detection copper wire. According to the deformation monitoring device for the deep and large foundation pit supporting structure, the detection copper wires are arranged between the supporting structures, the detection copper rings which are not in contact with the detection copper wires are installed on the detection copper wires, the power source and the alarm are connected to the wires, and one side of each wire is installed in the middle of the corresponding detection copper wire. Even if one detection copper ring is not in contact with the detection copper ring, the alarm circuit can be triggered, and the purpose of timely alarming is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building monitoring especially to a deep and large foundation pit supporting structure deformation monitoring device. BACKGROUND

[0002] The deep foundation pit supporting structure is numerous in engineering construction, and the working condition is complex, and along with the safety accident caused by the instability of the deep foundation pit supporting structure more and more, the personal safety of construction personnel is seriously threatened, causes the bad social influence and the bad view of the public to the construction, and the deep foundation pit is the major hazard in construction, and effective monitoring and early warning are one of the important prerequisites for guaranteeing the construction safety.

[0003] The utility model discloses a kind of deep foundation pit monitoring devices, by being set in the detection copper line between cylinder, detection copper piece is set on the detection copper line to detect whether cylinder is displaced, but in actual application process, one of which cylinder changes, detection copper line close to change side displacement is big, detection copper line far from change side displacement is small, it can appear that one detection copper line contacts, another detection copper line does not contact, to form alarm circuit cannot, cannot timely alarm. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of deep and large foundation pit supporting structure deformation monitoring device to solve the technical problems that one contact of detection copper line, another does not contact, to form alarm circuit cannot.

[0005] To solve the above technical problems, the utility model provides a kind of deep and large foundation pit supporting structure deformation monitoring device, including supporting structure, the detection copper line being set between two supporting structures, two detection copper rings close to two sides supporting structure, in normal state, detection copper ring does not contact detection copper line, detection copper ring lower end wire is connected to the middle of detection copper line, and power supply and alarm are connected in series on the wire of connection.

[0006] In preferred scheme, current-limiting resistor is further provided on the wire.

[0007] In preferred scheme, electrically-conductive connecting rod is provided below detection copper ring, wire is connected to electrically-conductive connecting rod, insulating mounting seat is provided below electrically-conductive connecting rod, and insulating tip is provided below insulating mounting seat, when insulating tip is inserted below ground, the ground is contacted below insulating mounting seat.

[0008] In preferred scheme, notch is provided on one side of detection copper ring, and the size of notch is greater than the diameter of detection copper line.

[0009] In preferred scheme, precision adjustment plate of detection copper line is provided on detection copper ring, and precision adjustment plate covers notch.

[0010] In the preferred scheme, a semicircle is arranged at the center of the precision adjustment plate, the precision adjustment plate is provided with two plates and arranged oppositely, and the detection copper wire is arranged in the hole surrounded by the semicircles of the two precision adjustment plates.

[0011] In the preferred scheme, a fastening hole is arranged on the detection copper ring, and a U-shaped groove is arranged at the corresponding position of the precision adjustment plate.

[0012] The deep and large foundation pit supporting structure deformation monitoring device has the advantages that: the detection copper ring is not contacted, the lead wire is connected to the power supply and the alarm, the lead wire is installed in the middle of the detection copper wire, a two-side detection copper ring parallel alarm circuit is formed, even if one detection copper ring is not contacted, the alarm circuit can be triggered, and the purpose of timely alarm is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The deep and large foundation pit supporting structure deformation monitoring device will be further described below in combination with the drawings and embodiments:

[0014] Fig. 1 is the main structure diagram of the embodiment of the utility model;

[0015] Fig. 2 is the side view installation structure diagram of the precision adjustment plate of the embodiment of the utility model.

[0016] Fig. 1 is a structural diagram of the deep and large foundation pit supporting structure deformation monitoring device provided by the embodiment of the utility model, and the reference signs are as follows: supporting structure 101, detection copper wire 11, detection copper ring 12, notch 121, fastening hole 122, power supply 13, alarm 14, current limiting resistor 15, conductive connecting rod 16, mounting seat 17, insulating tip 18, precision adjustment plate 19, semicircle 191, U-shaped groove 192, lead wire 21. DETAILED DESCRIPTION

[0017] Please refer to Figs. 1-2 The embodiment of the utility model provides a technical scheme: a deep and large foundation pit supporting structure deformation monitoring device, which comprises a supporting structure 101, a detection copper wire 11 arranged between two supporting structures 101, two detection copper rings 12 close to the two supporting structures 101, in a normal state, the detection copper ring 12 is not contacted with the detection copper wire 11, the lead wire 21 at the lower end of the detection copper ring 12 is connected to the middle of the detection copper wire 11, and the power supply 13 and the alarm 14 are connected in series on the connected lead wire 21.

[0018] The power supply 13 can be a battery, and the alarm 14 can be a common alarm. The detection copper ring 12, the power supply 13 and the alarm 14 form an open-loop alarm circuit. The two detection copper rings 12 form a parallel open-loop alarm circuit. When a support structure 101 is deformed and drives the detection copper wire 11 to displace, the detection copper wire 11 contacts the detection copper ring 12 to form a closed-loop circuit. Even if the detection copper ring 12 on the side far from the support structure 101 does not contact the detection copper wire 11 due to small displacement, one alarm circuit is already connected, and the alarm 14 starts to alarm. Thus, the alarm circuit can respond quickly and alarm in time.

[0019] In the preferred embodiment, a current-limiting resistor 15 is further arranged on the wire 21. The current-limiting resistor 15 is arranged to prevent short circuit caused by excessive current. Two current-limiting resistors 15 can be arranged.

[0020] In the preferred embodiment, a conductive connecting rod 16 is arranged below the detection copper ring 12. The wire 21 is connected to the conductive connecting rod 16. An insulating mounting seat 17 is arranged below the conductive connecting rod 16. An insulating tip 18 is arranged below the insulating mounting seat 17. When the insulating tip 18 is inserted into the ground, the lower part of the insulating mounting seat 17 contacts the ground.

[0021] The conductive connecting rod 16 can be made of the same material as the detection copper ring 12. The detection copper ring 12 is conveniently installed through the insulating tip 18.

[0022] In the preferred embodiment, a notch 121 is arranged on one side of the detection copper ring 12. The size of the notch 121 is greater than the diameter of the detection copper wire 11.

[0023] Thus, the detection copper wire 11 can be put into the detection copper ring 12 from the notch 121. Thus, the installation of the detection copper ring 12 in the later stage can not be affected.

[0024] In the preferred embodiment, a precision adjusting plate 19 of the detection copper wire 11 is arranged on the detection copper ring 12. The precision adjusting plate 19 covers the notch 121. Thus, the detection copper wire 11 will not be clamped into the notch 121, and the displacement value of the detection copper wire 11 will not be affected.

[0025] In the preferred embodiment, a semicircle 191 is arranged at the center of the precision adjusting plate 19. Two precision adjusting plates 19 are arranged oppositely. The detection copper wire 11 is arranged in a hole surrounded by the semicircles 191 of the two precision adjusting plates 19.

[0026] The radius of the semicircle 191 is greater than the radius of the detection copper wire 11, and the detection copper wire 11 can be coaxially arranged outside the detection copper wire 11. Thus, the displacement of the detection copper wire 11 in any direction is equal. The radius can be slightly greater than the radius of the detection copper wire 11, and thus the detection precision is relatively high.

[0027] In the preferred scheme, the fastening hole 122 is arranged on the detection copper ring 12, and the U-shaped groove 192 is arranged at the corresponding position of the precision adjusting plate 19.

[0028] The U-shaped groove 192 is larger than the fastening hole 122, which ensures that the precision adjusting plate 19 has adjustment space in up, down, left and right directions, so that even if there is an installation error when the detection copper ring 12 is installed to the site, the circuit can be turned on by adjusting the precision adjusting plate 19, so that the offset values of the detection copper wire 11 to the four directions are the same.

[0029] The above embodiment is only a preferred technical scheme of the present application, and should not be regarded as a limitation of the present application. The protection scope of the present application should be based on the technical scheme recorded in the claims, including the equivalent replacement scheme of the technical features recorded in the claims. That is, the equivalent replacement improvement within this range is also within the protection scope of the present application.

Claims

1. A deep and large foundation pit supporting structure deformation monitoring device, characterized in that, The utility model relates to a kind of copper detection device, including support structure (101), detection copper line (11) being arranged between two support structures (101), two detection copper rings (12) close to two sides support structure (101), when normal, detection copper ring (12) does not contact detection copper line (11), detection copper ring (12) lower end wire (21) is connected to the middle of detection copper line (11), and power supply (13) and alarm (14) are connected in series on the wire (21).

2. The deep and large foundation pit support structure deformation monitoring device according to claim 1, characterized in that: Resistor (15) is also provided on wire (21).

3. The deep and large foundation pit support structure deformation monitoring device according to claim 1, characterized in that: Conductive connecting rod (16) is provided below detection copper ring (12), wire (21) is connected to conductive connecting rod (16), insulating mounting base (17) is provided below conductive connecting rod (16), insulating tip (18) is provided below insulating mounting base (17), when insulating tip (18) is inserted below ground, insulating mounting base (17) is contacted with ground below.

4. The deep and large foundation pit support structure deformation monitoring device according to claim 3, characterized in that: Notch (121) is provided on one side of detection copper ring (12), the size of notch (121) is greater than the diameter of detection copper line (11).

5. The deep and large foundation pit support structure deformation monitoring device according to claim 4, characterized in that: Precision adjustment plate (19) of detection copper line (11) is provided on detection copper ring (12), precision adjustment plate (19) covers notch (121).

6. The deep and large foundation pit support structure deformation monitoring device according to claim 5, characterized in that: Half circle (191) is provided in the center of precision adjustment plate (19), precision adjustment plate (19) is provided with two and is oppositely arranged, detection copper line (11) is arranged in the hole surrounded by two half circles (191) of precision adjustment plate (19).

7. The deep and large foundation pit support structure deformation monitoring device according to claim 5, characterized in that: Fastening hole (122) is provided on detection copper ring (12), U-shaped groove (192) is provided at the corresponding position of precision adjustment plate (19).

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