Strain gauge with improved embedded structure

Abstract

The utility model discloses a strain gauge with an improved embedded structure, and relates to the technical field of strain gauges, the strain gauge comprises a strain gauge main body, a first clamping plate and an adjustable clamping assembly, the outer side of one end of the strain gauge main body is provided with a limiting member, the rear side of the strain gauge main body is provided with a mounting plate, and the rear side of the middle part of the mounting plate is fixedly provided with the first clamping plate. And the adjustable clamping assembly is installed on the rear side of the first clamping plate and comprises an outer frame, a threaded cylinder, a threaded rod and a second clamping plate, the outer frame is a rectangular frame with an opening in one side, the threaded cylinder is embedded in the middle of the outer frame, and the threaded rod is connected to the interior of the threaded cylinder in a threaded and screwed mode. According to the strain gauge with the improved embedded structure, the first clamping plate arranged on the rear side of the mounting plate is matched with the adjustable clamping assembly, so that the strain gauge can be mounted outside the corresponding steel arch, the disassembly of each part in the mounting mode is relatively convenient, the strain gauge is suitable for being embedded and mounted at different positions, and meanwhile, the fixation of the position of the strain gauge is ensured.

Description

Technical Field

[0001] This utility model relates to the field of strain gauge technology, specifically to an improved strain gauge with an embedded structure. Background Technology

[0002] A strain gauge, sometimes called a strain meter, is a sensor that measures the change in resistance as a function of force. It converts physical quantities such as force, pressure, tension, and weight into changes in resistance, thereby measuring these physical quantities. When an external force acts on a fixed object, stress and strain are generated. The reaction force generated inside the object to the external force is called stress, and the resulting displacement and deformation is called strain. The strain gauge is one of the most important sensors in electrical measurement technology, used for measuring mechanical quantities.

[0003] Existing strain gauge mounting structures typically use glue to attach the mounting base to the specimen, and then connect the strain gauge to the mounting base. This method is prone to poor adhesion. Furthermore, using multiple fasteners to fix the strain gauge to the steel arch frame is inconvenient for disassembly and replacement, and it is also troublesome to fix it in the wrong position. Utility Model Content

[0004] The purpose of this invention is to provide an improved strain gauge for embedded structures to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved embedded strain gauge, comprising a strain gauge body, a first clamping plate, and an adjustable clamping assembly. A limiting member is installed on the outer side of one end of the strain gauge body. A mounting plate is provided on the rear side of the strain gauge body, and the first clamping plate is fixed to the rear side of the middle part of the mounting plate. An adjustable clamping assembly is installed on the rear side of the first clamping plate, and the adjustable clamping assembly includes an outer frame, a threaded cylinder, a threaded rod, and a second clamping plate. The outer frame is a rectangular frame with an opening on one side, and a threaded cylinder is embedded in the middle part of the outer frame. A threaded rod is threadedly connected to the inside of the threaded cylinder, and the end of the threaded rod near the first clamping plate is rotatably connected to the second clamping plate.

[0006] Furthermore, an anchor head is fixed to the rear side of the limiting member, and a locking screw for locking the strain gauge body passes through the middle of the anchor head.

[0007] Furthermore, one end of the mounting plate is provided with a positioning hole, and the positioning hole matches the size of the anchor head.

[0008] Furthermore, the first clamping plate has a "U" shaped structure, while the second clamping plate has an arc-shaped structure.

[0009] Furthermore, the adjustable clamping assembly also includes guide rods, with guide rods fixed to the rear sides of both sides of the second clamping plate, and the guide rods passing through the rear wall of the outer frame and slidably connected to the outer frame.

[0010] Furthermore, both the inner surfaces of the first clamping plate and the second clamping plate are bonded with an anti-slip layer, and the diameter of the second clamping plate is smaller than the diameter of the arc segment of the first clamping plate.

[0011] Furthermore, the inner sides of the outer frame are in contact with the outer sides of the first clamping plate, and threaded holes are provided on both sides of the first clamping plate and the outer frame, with locking bolts installed in the middle of the threaded holes.

[0012] This utility model provides an improved strain gauge for embedded structures, which has the following beneficial effects:

[0013] This utility model is provided with an installation plate and a first clamping plate. The limiting member can be installed on one end of the strain gauge body and connected and fastened by locking screws. The anchor head of the limiting member can be connected to the positioning hole of the installation plate. The first clamping plate provided on the rear side of the installation plate, together with the adjustable clamping assembly, can be installed on the outside of the corresponding steel arch frame. The disassembly of each part of this installation method is relatively convenient, and it is suitable for buried installation in different positions, while ensuring the fixation of the strain gauge position.

[0014] This utility model is equipped with an adjustable clamping assembly. The locking bolts facilitate the connection and assembly of the outer frame and the first clamping plate, making it easy to install onto the outside of the corresponding steel arch frame. By rotating the threaded rod inside the threaded cylinder, one end of the second clamping plate can be pushed. The threaded rod and the second clamping plate are rotatably connected. At this time, the guide rod can slide with the outer frame to facilitate the stable movement of the second clamping plate. Thus, the arc-shaped second clamping plate, together with the "U"-shaped first clamping plate, is fastened to the outside of the steel arch frame. At this time, the anti-slip layer on the inner side of the first and second clamping plates can fit tightly against the outer side of the steel arch frame, making it suitable for steel arch frames of different diameters. Attached Figure Description

[0015] Figure 1 This is a right-side structural schematic diagram of an improved embedded strain gauge according to the present invention.

[0016] Figure 2 This is an exploded structural diagram of a strain gauge with an improved embedded structure according to the present invention.

[0017] Figure 3 This is a front view schematic diagram of the strain gauge with an improved embedded structure according to the present invention.

[0018] In the figure: 1. Strain gauge body; 2. Limiting component; 3. Anchor head; 4. Locking screw; 5. Mounting plate; 6. Positioning hole; 7. First clamping plate; 8. Adjustable clamping assembly; 801. Outer frame; 802. Threaded cylinder; 803. Threaded rod; 804. Second clamping plate; 805. Guide rod; 9. Anti-slip layer; 10. Threaded hole; 11. Locking bolt. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] like Figure 1 and Figure 3 As shown, an improved embedded strain gauge includes a strain gauge body 1, a first clamping plate 7, and an adjustable clamping assembly 8. A limiting member 2 is installed on the outer side of one end of the strain gauge body 1. A mounting plate 5 is provided on the rear side of the strain gauge body 1, and the first clamping plate 7 is fixed to the rear side of the middle of the mounting plate 5. An anchor head 3 is fixed to the rear side of the limiting member 2, and a locking screw 4 for locking the strain gauge body 1 passes through the middle of the anchor head 3. A positioning hole 6 is provided at one end of the mounting plate 5, and the positioning hole 6 matches the size of the anchor head 3. The first clamping plate 7 has a "U" shaped structure, while the second clamping plate 804 has an arc-shaped structure. The limiting member 2 can be installed on one end of the strain gauge body 1 and connected and fastened by the locking screw 4. The anchor head 3 of the limiting member 2 can be connected to the positioning hole 6 of the mounting plate 5. The first clamping plate 7 set on the rear side of the mounting plate 5, together with the adjustable clamping component 8, can be installed on the outside of the corresponding steel arch frame. The disassembly of each part of this installation method is relatively convenient, and it is suitable for buried installation in different positions, while ensuring the fixation of the strain gauge position.

[0021] like Figures 1-2As shown, an adjustable clamping assembly 8 is installed on the rear side of the first clamping plate 7. The adjustable clamping assembly 8 includes an outer frame 801, a threaded cylinder 802, a threaded rod 803, and a second clamping plate 804. The outer frame 801 is a rectangular frame with an opening on one side, and the threaded cylinder 802 is embedded in the middle of the outer frame 801. The threaded rod 803 is screwed onto the internal thread of the threaded cylinder 802, and the end of the threaded rod 803 near the first clamping plate 7 is rotatably connected to the second clamping plate 804. The adjustable clamping assembly 8 also includes a guide rod 805. Guide rods 805 are fixed on both rear sides of the second clamping plate 804, and the guide rods 805 penetrate the rear wall of the outer frame 801 and are slidably connected to the outer frame 801. The inner surfaces of the first clamping plate 7 and the second clamping plate 804 are both bonded with an anti-slip layer 9, and the diameter of the second clamping plate 804 is smaller than the diameter of the arc segment of the first clamping plate 7. The inner surfaces of both sides of the outer frame 801 are connected to the first clamping plate 804. The two outer sides of the first clamping plate 7 are fitted together, and threaded holes 10 are provided on both sides of the first clamping plate 7 and the outer frame 801. A locking bolt 11 is installed in the middle of the threaded hole 10. The locking bolt 11 facilitates the connection and assembly of the outer frame 801 and the first clamping plate 7, and facilitates its installation on the outside of the corresponding steel arch frame. By rotating the threaded rod 803 inside the threaded cylinder 802, the second clamping plate 804 at one end can be pushed. The threaded rod 803 and the second clamping plate 804 are rotatably connected. At this time, the guide rod 805 can slide with the outer frame 801 to facilitate the stable movement of the second clamping plate 804. Thus, the arc-shaped second clamping plate 804 and the first clamping plate 7 with the "U" structure are fastened to the outside of the steel arch frame. At this time, the anti-slip layer 9 on the inner side of the first clamping plate 7 and the second clamping plate 804 can fit tightly with the outer side of the steel arch frame, which is suitable for steel arch frames of different diameters.

[0022] In summary, as Figures 1-3As shown, in use, the strain gauge with the improved embedded structure can first be installed on one end of the strain gauge body 1 and fastened by the locking screw 4. Then, the anchor head 3 of the limiting member 2 is connected to the positioning hole 6 of the mounting plate 5. Then, the first clamping plate 7 set on the rear side of the mounting plate 5 is installed on the outside of the corresponding steel arch frame in conjunction with the adjustable clamping assembly 8. In this process, the outer frame 801 and the first clamping plate 7 can be connected and assembled by the locking bolt 11 to install it on the outside of the corresponding steel arch frame. One end of the screw can be pushed by rotating the threaded rod 803 inside the threaded cylinder 802. The second clamping plate 804 and the threaded rod 803 are rotatably connected to the second clamping plate 804. At this time, the guide rod 805 can slide with the outer frame 801 to facilitate the stable movement of the second clamping plate 804. Thus, the arc-shaped second clamping plate 804, together with the first clamping plate 7 with a "U" structure, is fastened to the outside of the steel arch frame. At this time, the anti-slip layer 9 on the inner side of the first clamping plate 7 and the second clamping plate 804 can fit tightly with the outer side of the steel arch frame, which is suitable for steel arch frames of different diameters. Finally, concrete is poured to realize the embedding of the strain gauge body 1. This completes the use process of the strain gauge with the improved embedding structure.

[0023] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An improved strain gauge for embedding in a structure, comprising a strain gauge body (1), a first clamping plate (7) and an adjustable clamping assembly (8), characterised in that, One end outside of the strain gauge body (1) is provided with a limiting piece (2), the rear side of the strain gauge body (1) is provided with a mounting plate (5), and the middle rear side of the mounting plate (5) is fixedly provided with a first clamping plate (7), the rear side of the first clamping plate (7) is provided with an adjustable clamping assembly (8), and the adjustable clamping assembly (8) comprises an outer frame (801), a threaded barrel (802), a threaded rod (803) and a second clamping plate (804), the outer frame (801) is a rectangular frame with one side opening, and the middle of the outer frame (801) is embedded with the threaded barrel (802), the threaded barrel (802) is screw-connected with the threaded rod (803) inside, and one end of the threaded rod (803) close to the first clamping plate (7) is rotatably connected with the second clamping plate (804).

2. A strain gauge for improved embedment of a structure according to claim 1, wherein, The rear side of the limiting piece (2) is fixedly provided with an anchor head (3), and the middle of the anchor head (3) is penetrated by a locking screw (4) for locking the strain gauge body (1).

3. A strain gauge for improved embedment of a structure according to claim 1, wherein, One end of the mounting plate (5) is provided with a positioning hole (6), and the size of the positioning hole (6) is consistent with that of the anchor head (3).

4. A strain gauge for improved embedment of a structure according to claim 1, wherein The first clamping plate (7) is in "U" type structure, and the second clamping plate (804) is in arc shape structure.

5. A strain gauge for improved embedment of a structure according to claim 1, wherein, The adjustable clamping assembly (8) further comprises a guide rod (805), the rear side of the two edges of the second clamping plate (804) is fixedly provided with the guide rod (805), and the guide rod (805) penetrates the rear wall of the outer frame (801) and is slidably connected with the outer frame (801).

6. A strain gauge for improved embedment of a structure according to claim 1, wherein, The inner side surface of the first clamping plate (7) and the second clamping plate (804) is adhered with an anti-skid layer (9), and the diameter of the second clamping plate (804) is smaller than that of the circular arc segment of the first clamping plate (7).

7. A strain gauge for improving a buried structure according to claim 1, wherein The two inner side surfaces of the outer frame (801) are inlaid with the two outer side surfaces of the first clamping plate (7), and the two edges of the first clamping plate (7) and the outer frame (801) are provided with threaded holes (10), and the middle of the threaded holes (10) is provided with locking bolts (11).

Images