CN211228633U

CN211228633U - Foundation detection system

Info

Publication number: CN211228633U
Application number: CN201921686129.7U
Authority: CN
Inventors: 冯秀妍
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-08-11
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a ground detection system the fixed left joint and the right joint that is provided with on the ground, left joint and right joint respectively with the left arm of right slope and the right arm of left slope articulated together, left arm and right arm pass through last joint articulated, go up the joint and be higher than the ground, the one end of left arm and right arm can rotate around left joint and right joint respectively, the other end can rotate around last joint, light emitting component is fixed in go up on the joint. This is novel can detect the ground crack.

Description

Foundation detection system

Technical Field

The present invention relates to building detection, and more particularly to a ground based detection system.

Background

The foundation is vital to the security of building, need detect the foundation in order to guarantee the security of building, for example detect indexes such as temperature, humidity of foundation, and crack detection is especially important among numerous detection indexes, and the current foundation generally adopts concrete placement to form, and can be by little grow gradually when the foundation appears the crack, can influence building structural safety finally. In order to find the gap of the foundation in time, a sensor (sensing wire) is generally laid in the foundation at present, namely a plurality of guide wires are arranged in the foundation and connected with a power supply, when the gap occurs, the guide wires break, and current cannot flow through the guide wires, so that the gap is detected. The detection mode needs to embed guide wires in the foundation, so that concrete pouring operation is not convenient, and on the other hand, the number of guide wires needs to be arranged, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a ground detection system.

A foundation detection system is arranged on a foundation of a building, an accommodating space for accommodating a crack detection device is formed between a floor of the building and the foundation, an opening is formed in the floor, the crack detection device comprises a controller positioned in the opening, a light-emitting element and a photosensitive element fixed on the building, the light-emitting element and the photosensitive element are arranged opposite to each other, so that light emitted from the light-emitting element can reach the photosensitive element, and the light-emitting element and the photosensitive element are both connected with the controller; the ground is fixedly provided with a left joint and a right joint, the left joint and the right joint are respectively hinged with a left arm inclining to the right and a right arm inclining to the left, the left arm and the right arm are hinged through an upper joint, the upper joint is higher than the ground, one ends of the left arm and the right arm can respectively rotate around the left joint and the right joint, the other ends of the left arm and the right arm can rotate around the upper joint, and the light-emitting element is fixed on the upper joint.

Optionally, the light emitting element is a laser device; the photosensitive element is a photosensitive diode; the conduction degree of the photosensitive element is related to light intensity; the controller comprises a power supply which is respectively connected with the CPU, the light-emitting element and the photosensitive element, wherein the photosensitive element is connected with the power supply through a resistor and a current sensor, and the current sensor is connected with the CPU through an amplifying filter; when the ground has cracks, the light emitted by the light-emitting element cannot reach the photosensitive element, the photosensitive element is in a high-resistance low-conduction state, the current detected by the current sensor is reduced, and the CPU judges that the ground has cracks after receiving the reduced current signal.

This neotype beneficial effect is: the novel foundation detection system connects the detection parts through joints, has a simple overall structure, and does not need to embed complex sensors; optical detection is adopted, so that the sensitivity is high, and the micro cracks can be detected; due to the adoption of the joint connection, the whole system can adapt to different cracks, and the adaptability is strong.

Drawings

FIG. 1 is a schematic view of the structure of a foundation;

FIG. 2 is a schematic diagram of the construction of the detection system;

FIG. 3 is a first schematic diagram of a detection system;

FIG. 4 is a second schematic diagram of the detection system;

fig. 5 is a schematic structural diagram of the controller.

Detailed Description

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the present invention when taken in conjunction with the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be to scale, emphasis instead being placed upon illustrating the principles of the invention.

The present novel detection system is provided on the foundation 5 of the building 1 for detecting the state of the foundation 5, such as the humidity, temperature, cracks, etc. of the foundation 5. As shown in fig. 1, a building 1 is located on a foundation 5, the building 1 may be, for example, a building, a floor 2 of the building 1 and the foundation 5 form an accommodating space 4 for accommodating a crack detection device 6, and the floor 2 has an opening 3.

Referring to fig. 2, the crack detection device comprises a controller 6.1 located in the opening 3, a light emitting element 6.3 and a light sensitive element 6.2 fixed to the building 1, for example, the light sensitive element 6.2 can be fixed to a wall of the building 1, the light emitting element 6.3 is preferably a laser light source, the light emitting element 6.3 is arranged opposite to the light sensitive element 6.2 so that light emitted from the light emitting element 6.3 can reach the light sensitive element 6.2, the light sensitive element 6.2 can be a photodiode whose conductivity is related to the light intensity, and both the light emitting element 6.3 and the light sensitive element 6.2 are connected to the controller 6.1.

A left joint 6.7 and a right joint 6.6 are fixedly arranged on a foundation 5, the left joint 6.7 and the right joint 6.6 are respectively hinged with a left arm 6.8 inclining to the right and a right arm 6.5 inclining to the left, the left arm 6.8 and the right arm 6.5 are hinged through an upper joint 6.4, the upper joint 6.4 is higher than the foundation 5, for example, the height of the upper joint 6.4 from the foundation is H, one end of the left arm 6.8 and one end of the right arm 6.5 can respectively rotate around the left joint 6.7 and the right joint 6.6, the other end can rotate around the upper joint 6.4, and a light-emitting element 6.3 is fixed on the upper joint 6.4.

The detection principle of the detection system will be described with reference to fig. 3, when the crack is substantially perpendicular to the connection line between the left joint 6.7 and the right joint 6.6, at this time, since the left joint 6.7 and the right joint 6.6 will be separated from each other along the connection line therebetween, for example, due to the crack on the foundation 5, so that the right joint 6.6 moves to the right along with the foundation 5, the right arm 6.5 is pulled by the right arm 6.6 in the moving process, the right arm 6.8 is further pulled by the upper joint 6.4, and since the left arm 6.8 and the right arm 6.5 are hinged by the upper joint 6.4, the height of the upper joint 6.4 is reduced to the position shown by the dotted line in the figure, at this time, the light emitted by the light emitting element 6.3 cannot reach the light sensitive element 6.2, the conduction degree of the light sensitive element 6.2 is reduced, the current flowing through the light sensitive element 6.2 is reduced, and when the current is reduced, it can be determined.

When the crack forms a certain angle with the connection line of the left joint 6.7 and the right joint 6.6, as shown by the dotted line a in fig. 4, the foundation 5 moves along the direction indicated by the arrow in fig. 4, so that the right joint 6.6 moves along with the foundation 5 in the direction indicated by the arrow, the right joint 6.6 pulls the right arm 6.5 during the movement, the right arm 6.5 further pulls the left arm 6.8 through the upper joint 6.4, because the left arm 6.8 and the right arm 6.5 are hinged through the upper joint 6.4, both the left arm 6.8 and the right arm 6.5 can rotate around the upper joint 6.4, so that the height of the upper joint 6.4 is reduced to the position shown by the dotted line in fig. 4, at this time, the light emitted by the light emitting element 6.3 also cannot reach the photosensitive element 6.2, the current flowing through the photosensitive element 6.2 is reduced, and when the current is reduced, it can be determined that the crack occurs in the foundation 5.

Referring to fig. 5, the controller 6.1 includes a power supply 6.16, the power supply 6.16 is connected to the CPU6.13, the light emitting device 6.3 and the light sensitive device 6.2, respectively, wherein the light sensitive device 6.2 is connected to the power supply 6.16 through a resistor 6.11 and a current sensor 6.12, the current sensor is connected to the CPU6.13 through an amplifying filter 6.15, and the CPU6.13 may also be connected to, for example, a display, a speaker 6.14, and the like. The power supply 6.16 is used for supplying power to each electric component, the current sensor 6.12 is used for detecting the current flowing through the photosensitive element 6.2, the detected current is amplified and filtered and then is sent to the CPU6.13, and the resistor 6.11 is used for limiting the current so as to reduce the power consumption of the system.

When no crack appears on the foundation, the light emitted by the light-emitting element 6.3 can reach the photosensitive element 6.2, the photosensitive element 6.2 is in a low-resistance high-conduction state, the current detected by the current sensor 6.12 is a large current, and the CPU6.13 judges that no crack appears on the foundation after receiving the large current signal; when the ground has cracks, the light emitted by the light-emitting element 6.3 cannot reach the photosensitive element 6.2, the photosensitive element 6.2 is in a high-resistance low-conduction state, the current detected by the current sensor 6.12 is a small current, the CPU6.13 judges that the ground has cracks after receiving the small current signal, and the CPU6.13 can drive the loudspeaker 6.14 to give an alarm.

The novel foundation detection system connects the detection parts through joints, has a simple overall structure, and does not need to embed complex sensors; optical detection is adopted, so that the sensitivity is high, and the micro cracks can be detected; due to the adoption of the joint connection, the whole system can adapt to different cracks, and the adaptability is strong.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only illustrative of the preferred embodiments of this invention and, therefore, the invention is not limited to the specific details disclosed herein, since the invention can be practiced in many other ways than those specifically described herein. While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. Any simple modification, equivalent change and modification made to the above embodiments according to the novel technical substance are still within the protection scope of the novel technical scheme.

Claims

1. A foundation detection system is characterized in that the foundation detection system is arranged on a foundation of a building, a containing space for containing a crack detection device is formed between a floor of the building and the foundation, an opening is formed in the floor, the crack detection device comprises a controller positioned in the opening, a light-emitting element and a photosensitive element fixed on the building, the light-emitting element and the photosensitive element are arranged opposite to each other, so that light emitted from the light-emitting element can reach the photosensitive element, and the light-emitting element and the photosensitive element are both connected with the controller; the ground is fixedly provided with a left joint and a right joint, the left joint and the right joint are respectively hinged with a left arm inclining to the right and a right arm inclining to the left, the left arm and the right arm are hinged through an upper joint, the upper joint is higher than the ground, one ends of the left arm and the right arm can respectively rotate around the left joint and the right joint, the other ends of the left arm and the right arm can rotate around the upper joint, and the light-emitting element is fixed on the upper joint.

2. The ground based detection system of claim 1, wherein the light emitting element is a laser device.

3. The ground based detection system of claim 1, wherein the photosensitive element is a photodiode.

4. The ground based detection system of claim 1, wherein the on-state of the photosensitive element is related to light intensity.

5. The ground detection system of claim 1, wherein the controller comprises a power source, the power source is connected to the CPU, the light emitting element and the light sensitive element, respectively, wherein the light sensitive element is connected to the power source through a resistor and a current sensor, and the current sensor is connected to the CPU through an amplification filter.

6. The ground detection system of claim 5, wherein when the ground cracks, the light emitted from the light emitting device can not reach the light sensitive device, the light sensitive device is in a high resistance and low conduction state, the current detected by the current sensor is reduced, and the CPU receives the reduced current signal to determine that the ground cracks.