Steel structure welding seam bearing change monitoring device

Abstract

The utility model relates to a steel structure welding seam bearing change monitoring device which comprises a monitoring control assembly, the left side and the right side of the monitoring control assembly are electrically connected with strain gauges, the left side and the right side of each strain gauge are connected with fixing bases which are symmetrical front and back, connecting pieces are connected to the fixing bases in a clamped mode, and thermal compensation pieces are arranged on the strain gauges. Control parts are mounted on the left and right parts of the monitoring control assembly, a negative pressure assembly is mounted on the monitoring control assembly, mounting plates are connected to the front and rear parts of the negative pressure assembly, adsorption suckers are connected to the lower parts of the mounting plates, and lifting parts are clamped to the front and rear sides of the middle of the strain gauge. The connecting pieces and the welding seam are welded together, the fixing base and the adjacent connecting pieces are fixed in a clamping mode, the strain gauges are attached to the welding seam, and therefore the accuracy of the monitoring structure is improved, meanwhile, the control piece is used for heating the thermal compensation piece, the temperature of the monitored position is in a relatively stable state, and the stability of the monitoring structure is improved. And the monitoring result is more accurate.

Description

Technical Field

[0001] The utility model relates to the field of steel structures, in particular to a device for monitoring load-bearing changes of welds in steel structures. Background Art

[0002] Steel structure is a widely used form of building and engineering structure, mainly made of steel. It has the characteristics of high strength, light weight, fast construction speed and good seismic resistance. In order to ensure the integrity and reliability of the steel structure, the various components of the steel structure need to be welded. The quality of the welds directly affects the safety of the entire structure. After the steel structure is welded, the load-bearing capacity of the welds may change due to changes in external loads or environmental factors. Changes in the load-bearing capacity of the steel structure welds may reduce the safety of the structure. The load-bearing capacity of the welds needs to be monitored and maintained regularly. The strain gauges are used to generate corresponding electrical signal changes as the welds deform to monitor the changes in the load-bearing capacity of the welds. When the existing monitoring device is monitoring, the strain gauges may not be completely in contact with the welds, which may affect the monitoring results. In addition, in outdoor environments, temperature changes will affect the physical properties of the material and increase the error of the monitoring results.

[0003] In order to solve the above problems, a device for monitoring the load-bearing changes of steel structure welds is developed. Utility Model Content

[0004] In order to overcome the shortcomings of existing monitoring devices, such as the strain gauge may not be completely fitted to the weld during monitoring, which may affect the monitoring results, and in outdoor environments, temperature changes may affect the physical properties of the material and increase the error of the monitoring results, the utility model provides a steel structure weld load-bearing change monitoring device.

[0005] The technical solution of the present utility model is as follows: A device for monitoring the load-bearing changes of welds in steel structures includes a monitoring and control component, wherein the left and right sides of the monitoring and control component are electrically connected to strain gauges through two wires, the left and right sides of the strain gauges are connected to front and rear symmetrical fixing seats, the fixing seats are clamped with connecting pieces, the strain gauges are provided with thermal compensation plates, the left and right parts of the monitoring and control component are installed with control parts, the control parts are connected to the adjacent thermal compensation plates, a negative pressure component is installed on the monitoring and control component, the front and rear parts of the negative pressure component are connected to mounting plates, the lower part of the mounting plates are connected to adsorption suction cups, and the front and rear sides of the middle part of the strain gauge are clamped with lifting parts.

[0006] As a further preferred solution, the middle portion of the strain gauge is an arc-shaped structure.

[0007] As a further preferred solution, the connecting members are all Z-shaped structures.

[0008] As a further preferred solution, the outer sides of the connecting parts are all hollow structures.

[0009] As a further preferred solution, the lifting members are all detachable connection structures.

[0010] As a further preferred solution, each of the lifting members is provided with a power-assisting block.

[0011] By adopting the above technical solution, the utility model has the following advantages:

[0012] The utility model welds the connector and the weld together, and fixes the fixing base to the adjacent connector by means of a clamping connection, so that the strain gauge fits the weld. This method can improve the accuracy of the monitoring structure. At the same time, the control component is used to heat the thermal compensation sheet, so that the temperature of the weld at the monitored location is in a relatively stable state, further making the monitoring result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 It is a structural diagram of the present utility model.

[0015] Figure 3 It is a partial three-dimensional structural diagram of the utility model.

[0016] Among them: 1-monitoring and control component, 2-strain gauge, 3-fixed seat, 4-connector, 5-thermal compensation plate, 6-control component, 7-negative pressure component, 8-mounting plate, 9-adsorption suction cup, 10-lifting component. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to specific embodiments. It should be noted that, unless otherwise specified or limited, terms such as "dispose," "install," "connect," and "connect" should be understood in a broad sense. For example, "connect" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; or it may refer to internal communication between two components. A person skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0018] A device for monitoring the load-bearing changes of steel structure welds, such as Figure 1-Figure 3As shown, it includes a monitoring and control component 1, and the left and right sides of the monitoring and control component 1 are electrically connected to strain gauges 2 through two wires. The middle part of the strain gauge 2 is an arc structure, and the left and right sides of the strain gauge 2 are connected to front and rear symmetrical fixing seats 3, and the fixing seats 3 are clamped with connectors 4, which are all Z-shaped structures, and the outer sides of the connectors 4 are all hollow structures. Thermal compensation plates 5 are provided on the strain gauges 2, and control components 6 are installed on the left and right parts of the monitoring and control component 1. The control components 6 are connected to the adjacent thermal compensation plates 5. A negative pressure component 7 is installed on the monitoring and control component 1, and the front and rear parts of the negative pressure component 7 are connected to mounting plates 8, and the lower part of the mounting plate 8 is connected to an adsorption suction cup 9. Lifting components 10 are clamped on the front and rear sides of the middle of the strain gauge 2, and the lifting components 10 are all detachable connection structures, and the lifting components 10 are provided with power-assisting blocks.

[0019] It should be noted that steel structure is a widely used form of building and engineering structure, mainly made of steel, with the characteristics of high strength, light weight, fast construction speed, good seismic performance, etc. In order to ensure the integrity and reliability of the steel structure, it is necessary to weld the various components of the steel structure. The quality of the weld directly affects the safety of the entire structure. After the steel structure is welded, the load-bearing capacity of the weld may change due to changes in external loads or environmental factors. The load-bearing capacity of the steel structure weld may reduce the safety of the structure. The weld load-bearing capacity needs to be monitored and maintained regularly. First, the suction cup 9 is adsorbed on the steel structure through the negative pressure component 7, and then the connector 4 is welded at the weld. Welding the weld at the hollow part of the connector 4 can increase the contact area between the connector 4 and the weld, so that The strain gauge 2 contacts the weld more firmly, and then the connector 4 is clamped with the adjacent fixing seat 3 so that the weld fits the surface of the strain gauge 2. The strain gauge 2 will generate corresponding electrical signal changes as the weld deforms, and then transmit it to the monitoring and control component 1 electrically. Since temperature changes will affect the physical properties of the material, the thermal compensation sheet 5 can be heated by the control member 6 to make the weld temperature at the monitored location relatively stable, thereby making the monitoring result more accurate. When the monitoring is completed, the lifting member 10 is lifted upward to make the middle part of the strain gauge 2 deform upward, thereby making the connector 4 and the fixing seat 3 disengage from the clamping state, thereby quickly storing the weld load-bearing change monitoring device. The clamping connection method of the lifting member 10 makes it more convenient to disassemble and replace the lifting member 10.

[0020] It should be understood that the embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A device for monitoring the load-bearing changes of steel structure welds, characterized in that: The invention comprises a monitoring and control component (1), wherein the left and right sides of the monitoring and control component (1) are electrically connected to strain gauges (2) through two wires, the left and right sides of the strain gauge (2) are connected to front and rear symmetrical fixing seats (3), the fixing seats (3) are clamped with connecting members (4), the strain gauges (2) are provided with thermal compensation plates (5), the left and right sides of the monitoring and control component (1) are installed with control members (6), the control members (6) are connected to the adjacent thermal compensation plates (5), the monitoring and control component (1) is installed with a negative pressure component (7), the front and rear sides of the negative pressure component (7) are connected to mounting plates (8), the lower part of the mounting plates (8) are connected to adsorption cups (9), and the front and rear sides of the middle part of the strain gauge (2) are clamped with lifting members (10).

2. A steel structure weld load-bearing change monitoring device as claimed in claim 1, characterized in that: The middle portion of the strain gauge (2) is an arc-shaped structure.

3. The device for monitoring the load-bearing changes of steel structure welds according to claim 1, characterized in that: The connecting pieces (4) are all Z-shaped structures.

4. The device for monitoring the load-bearing changes of steel structure welds according to claim 1, wherein: The outer sides of the connecting pieces (4) are all hollow structures.

5. The device for monitoring the load-bearing changes of steel structure welds according to claim 1, wherein: The lifting members (10) are all detachable connection structures.

6. The device for monitoring the load-bearing changes of steel structure welds according to claim 1, characterized in that: The lifting members (10) are each provided with a power-assisting block.

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