An aid for multi-axial strain gauge installation

Abstract

The utility model discloses an auxiliary device for multi -direction strain gauge installation, including L type board and a plurality of I type board, the L type board includes long side and short side, one end of I type board is connected on the short side, and I type board is used for binding and connecting strain gauge. The utility model aims at solving the technical problem existing in the prior art, provides an auxiliary device for multi -direction strain gauge installation, and it can guarantee the position and direction of each strain gauge embedding, realizes the embedding position and direction fixedness of each direction strain gauge.

Description

Technical Field

[0001] This utility model relates to the field of structural monitoring technology, specifically to an auxiliary installation device suitable for installing embedded strain gauges during the construction of reinforced concrete structures. Background Technology

[0002] Embedded strain gauges are widely used in civil engineering, bridge monitoring, and mine safety to measure strain changes within structures. Civil engineering structures are often subjected to triaxial stress and strain. To monitor stress and strain changes in the reinforced concrete within the structure, strain gauges need to be embedded in multiple directions to monitor strain changes in different directions. However, due to structural construction and other factors, it is often difficult to fix the orientation of the strain gauges in each direction. Therefore, an auxiliary device needs to be developed to fix the strain gauges to the reinforcing steel within the structure, thereby ensuring the correct position and orientation of each strain gauge. Utility Model Content

[0003] 1. Technical problem to be solved by the utility model

[0004] The purpose of this utility model is to solve the technical problems existing in the prior art and provide an auxiliary device for the installation of multi-directional strain gauges, which can ensure the position and direction of each strain gauge and realize the fixation of the position and direction of each strain gauge.

[0005] 2. Technical Solution

[0006] To solve the above problems, the technical solution provided by this utility model is as follows:

[0007] An auxiliary device for installing a multi-directional strain gauge includes an L-shaped plate and several I-shaped plates. The L-shaped plate has a long side and a short side, and one end of each I-shaped plate is attached to the short side. The I-shaped plates are used to bind the strain gauge.

[0008] Preferably, the short side is provided with a first connecting hole, the I-shaped plate is provided with a second connecting hole, and the short side and the plurality of I-shaped plates are connected by bolts.

[0009] Preferably, a binding structure is provided on the long side.

[0010] Preferably, the binding structure includes arc-shaped grooves symmetrically arranged on both sides of the long side.

[0011] Preferably, a rubber sleeve is movably fitted onto the I-shaped plate.

[0012] Preferably, a scale is provided on the short side, and marking lines are provided on the I-shaped plate.

[0013] Preferably, the dial is transparent.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0016] This auxiliary device for installing multi-directional strain gauges consists of an L-shaped plate and three I-shaped plates, which are fixed to the reinforcing steel bars within the structure. This ensures the fixed position and orientation of each strain gauge, achieving precise control over their installation. Its simple, reliable, and practical structure allows for widespread application in structural safety monitoring, offering significant economic and social benefits. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an auxiliary device for installing a multi-directional strain gauge, as proposed in an embodiment of the present invention.

[0018] 10. L-shaped plate; 101. Long side; 1011. Binding structure; 102. Short side; 20. I-shaped plate; 201. Marking line; 30. Bolt; 40. Rubber sleeve; 50. Dial. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the scope of protection of this utility model.

[0020] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in the prior art and will not be elaborated further here. When a component is perpendicular or approximately perpendicular to another component, it means that the ideal state is perpendicularity, but due to manufacturing and assembly effects, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] The terms "first" and "second" in this utility model do not represent specific quantities or orders, but are merely used to distinguish names.

[0023] Combined with appendix Figure 1 An auxiliary device for installing multi-directional strain gauges according to this embodiment includes an L-shaped plate 10 and several I-shaped plates 20. Both the L-shaped plate 10 and the I-shaped plates 20 are steel plates. The L-shaped plate 10 includes a vertical and integrally formed long side 101 and a short side 102. The L-shaped plate is 30mm wide and 5mm thick. The long side 101 is 305mm long and the short side 102 is 70mm long. One end of the I-shaped plate 20 is attached to the short side 102. The long side of the L-shaped plate 10 is fixed to the reinforcing bars in the reinforced concrete by binding or welding. The I-shaped plate 20 is used to bind the strain gauge. The I-shaped plate 20 is 300mm long, 30mm wide, and 5mm thick. The strain gauge is placed along the length of the I-shaped plate 20.

[0024] This auxiliary device for installing multi-directional strain gauges consists of an L-shaped plate 10 and three I-shaped plates 20, which are fixed to the reinforcing steel bars within the structure. This ensures the fixed position and orientation of each strain gauge, achieving precise control over its installation. Its structure is simple, reliable, and practical, and it can be widely applied to structural safety monitoring, offering significant economic and social benefits.

[0025] As a preferred embodiment of this utility model, a first connecting hole is provided on the short side 102, which is a small hole with a diameter of 10mm at the center of the short side 102. A second connecting hole is provided on the I-shaped plate 20, which is a small hole with a diameter of 10mm on the center line at one end 20mm away from the edge. The short side 102 and multiple I-shaped plates 20 are connected by bolts 30. The bolts 30 pass through the first connecting hole and multiple second connecting holes to realize the connection between the L-shaped plate 10 and the multiple I-shaped plates 20.

[0026] As a preferred embodiment of this utility model, the contact surfaces of L-shaped plate 10 and I-shaped plate 20, as well as the contact surfaces of I-shaped plate 20 and I-shaped plate 20, are all treated with sanding. The surface smoothness is reduced after sanding, so that the two plates are not easy to rotate relative to each other after being fixed, and the angle is fixed.

[0027] As a preferred embodiment of this utility model, in order to improve the stability when the long side 101 is tied to the reinforcing bar, a tying structure 1011 is provided on the long side 101. In this embodiment, the tying structure 1011 includes arc-shaped grooves symmetrically arranged on both sides of the long side 101. The arc-shaped grooves can be made by manual grinding on site. Multiple sets of arc-shaped grooves can be arranged at intervals on the long side 101.

[0028] As a preferred embodiment of this utility model, a rubber sleeve 40 is movably fitted on the I-shaped plate 20. The inner diameter of the rubber sleeve 40 is appropriately larger than the outer diameter of the I-shaped plate 20. Without external force, the rubber sleeve 40 can move freely relative to the I-shaped plate 20. When fixing the strain gauge, the strain gauge is placed on the rubber sleeve 40 and secured by a cable tie. At this time, the cable tie applies pressure to the rubber sleeve 40, causing the rubber sleeve 40 and the I-shaped plate 20 to stick together tightly. The frictional resistance between the rubber sleeve 40 and the I-shaped plate 20 increases, thereby making the strain gauge firmly fixed on the I-shaped plate 20.

[0029] As a preferred embodiment of this utility model, a scale 50 is provided on the short side 102. The scale 50 is evenly distributed with several indicator scales along the circumference. The center of the scale 50 is consistent with the center of the first connecting hole. A marking line 201 is provided on the I-shaped plate 20. The marking line 201 extends along the center line of the I-shaped plate 20. The operator can compare the marking line 201 and the scale on the scale 50 to determine the angle of the I-shaped plate 20.

[0030] As a preferred embodiment of this utility model, in order to facilitate comparison between the marking line 201 and the scale on the dial 50, the dial 50 is a transparent structure, such as acrylic.

[0031] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An auxiliary device for installing a multi-directional strain gauge, characterized in that: It includes an L-shaped plate and several I-shaped plates. The L-shaped plate includes a long side and a short side. One end of the I-shaped plate is attached to the short side. The I-shaped plate is used to bind the strain gauge.

2. The auxiliary device for installing a multi-directional strain gauge according to claim 1, characterized in that: The short side is provided with a first connecting hole, and the I-shaped plate is provided with a second connecting hole. The short side and the multiple I-shaped plates are connected by bolts.

3. The auxiliary device for installing a multi-directional strain gauge according to claim 1, characterized in that: A binding structure is provided on the long side.

4. The auxiliary device for installing a multi-directional strain gauge according to claim 3, characterized in that: The binding structure includes arc-shaped grooves symmetrically arranged on both sides of the long side.

5. An auxiliary device for installing a multi-directional strain gauge according to any one of claims 1-4, characterized in that: A rubber sleeve is movably fitted onto the I-shaped plate.

6. An auxiliary device for installing a multi-directional strain gauge according to any one of claims 1-4, characterized in that: A scale is provided on the short side, and marking lines are provided on the I-shaped plate.

7. An auxiliary device for installing a multi-directional strain gauge according to claim 6, characterized in that: The dial is transparent.

Images