Embedded strain gauge mounting device

Abstract

The utility model discloses an embedded strain gauge installation device. A traditional embedded strain gauge has many problems and defects in the installation process. Two ends of the strain gauge are provided with self-adaptive clamping seats; an adjustable connecting plate and a mounting cylinder are arranged below the clamping seat; the bottoms of the connecting plate and the mounting cylinder are respectively connected with connecting columns, and limiting seats are arranged at the bottoms of the connecting columns; the connecting plate and the mounting cylinder are respectively connected with the clamping seat through a connecting mechanism; the connecting mechanism comprises mounting blocks; the mounting blocks are respectively fixed on the connecting plate and the mounting cylinder; a sliding rod is slidably mounted on the mounting block, and a connecting block is arranged at the other end of the sliding rod; a first spring is arranged on the sliding rod and is arranged between the mounting block and the connecting block; the top of the connecting block is connected with the bottom of the clamping seat. According to the utility model, the spring is arranged, so that impact force generated in the installation and use process can be absorbed and relieved, and the strain gauge is protected from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering and construction detection, and in particular relates to an embedded strain gauge installation device. Background Art

[0002] With the rapid development of civil engineering construction, the safety monitoring and evaluation of concrete structures such as bridges and buildings has become increasingly important. Among them, the strain state inside the concrete is an important indicator reflecting the health status and safety performance of the structure.

[0003] Traditional embedded strain gauges have many problems and shortcomings during installation. For example, it is inconvenient to fix the strain gauges, and construction workers need to use a wire wrench to manually tie them one by one, which is not only inefficient, but also easy to slip and difficult to fix. Although the existing embedded strain gauge installation device is efficient, the strain gauge is easily impacted and damaged during installation and use. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides an embedded strain gauge installation device, which can absorb and alleviate the impact force generated during installation and use, thereby protecting the strain gauge from damage, by arranging a spring.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An embedded strain gauge installation device, characterized in that: it comprises an embedded strain gauge body, both ends of the embedded strain gauge body are respectively provided with adaptive clamping seats for limiting; an adjustable connecting plate and an installation cylinder are provided below the adaptive clamping seat;

[0007] The adjustable connecting plate and the bottom of the installation tube are respectively fixedly connected with connecting columns, and the bottom of the connecting column is provided with a limiting seat for clamping and fixing the steel bar frame;

[0008] The adjustable connecting plate and the mounting tube are respectively connected to the adaptive card holder through connecting mechanisms;

[0009] The connecting mechanism includes a mounting block, which is respectively fixed on the adjustable connecting plate and the mounting cylinder; a sliding rod is slidably mounted on the mounting block, and a connecting block is provided at the other end of the sliding rod; a first spring is sleeved on the sliding rod, and the first spring is provided between the mounting block and the connecting block; the top of the connecting block is fixedly connected to the bottom of the adaptive card seat.

[0010] Furthermore, a clamping plate is arranged in the limiting seat, a first bolt is arranged on the limiting seat, and one end of the first bolt is fixedly connected to the clamping plate.

[0011] Furthermore, an anti-sliding block is arranged in the adaptive card seat, and a second bolt for adjusting the height of the anti-sliding block is arranged on the adaptive card seat, and the top end of the second bolt is fixedly connected to the bottom end of the anti-sliding block.

[0012] Further, the mounting tube is provided with a telescopic adjustment mechanism, the telescopic adjustment mechanism comprising a slide plate slidably mounted in the mounting tube, one end of the slide plate being fixedly connected to the adjustable connecting plate;

[0013] A plurality of limit grooves are arranged at the bottom of the slide plate; a mounting frame is fixed at the bottom of the mounting tube, a pin rod is penetrated and arranged in the mounting frame, the top end of the pin rod is fixedly connected with the limit block, and the limit block is arranged in the limit groove; a second spring is arranged in the mounting frame, and the second spring is sleeved on the pin rod.

[0014] Furthermore, a pull ring is fixedly installed on the bottom end of the pin rod.

[0015] Furthermore, a level bubble for measuring level is inlaid on one side of the adaptive card seat.

[0016] Furthermore, the installation tube is provided with a through hole through which the pin rod and the limit block can pass.

[0017] Beneficial effects of the utility model:

[0018] 1) The first spring of the utility model can absorb and alleviate the impact force generated during the installation process, protecting the strain gauge from damage. At the same time, when the position of the strain gauge needs to be adjusted, the reset effect of the first spring can help the slide bar quickly return to the initial position, which is convenient for the next installation;

[0019] 2) The utility model has an anti-sliding block inside the adaptive card holder, and a second bolt for adjusting the height of the anti-sliding block is provided on the adaptive card holder. The anti-sliding block can be adjusted according to the diameter and surface condition of the steel bar, and its height can be changed to adapt to different installation environments;

[0020] 3) The connecting plate of the utility model can be slidably adjusted in the installation tube to change the installation size, thereby improving the flexibility of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the embedded strain gauge of the utility model;

[0022] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0023] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0024] Figure 4It is a structural schematic diagram of the limit seat in the utility model;

[0025] Figure numerals: 1. embedded strain gauge body; 2. adaptive socket; 3. adjustable connecting plate; 4. mounting tube; 5. connecting column; 6. limit seat; 7. clamping plate; 8. first bolt; 9. mounting block; 10. slide bar; 11. first spring; 12. connecting block; 13. anti-sliding block; 14. second bolt; 15. slide plate; 16. limit groove; 17. limit block; 18. mounting frame; 19. pin rod; 20. second spring; 21. level bubble. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with specific implementation methods.

[0027] The embedded strain gauge is a concrete strain gauge directly buried in the concrete or reinforced concrete of hydraulic structures and other structures, and is used to monitor the strain of concrete. When burying the embedded strain gauge in the reinforced concrete structure, the embedded strain gauge should be installed before the steel cage is tied and the concrete is poured. The embedded strain gauge should be located at the pre-designed strain test position, and then the lead wire of the embedded strain gauge should be led out to the outside of the reinforced concrete structure being constructed. When leading out the lead wire of the embedded strain gauge, the lead wire should be led out along a steel bar in the steel cage to the outside of the steel cage, and the lead wire should be tied and fixed to the steel bar through multiple wire ties. After the embedded strain gauge is completed, the concrete pouring construction can be carried out.

[0028] like Figure 1 , 2 As shown, the strain gauge installation device of the utility model comprises an embedded strain gauge body 1, and adaptive clamping seats 2 for limiting are respectively arranged at both ends of the embedded strain gauge body 1; the design of the adaptive clamping seat 2 enables the strain gauge body to be conveniently fixed at a predetermined position in the steel cage, and the adaptive clamping seat 2 can be adaptively adjusted according to different steel bar diameters and positions, thereby ensuring that the strain gauge body can be firmly installed on the steel bar;

[0029] An adjustable connecting plate 3 and a mounting tube 4 are arranged below the adaptive card holder 2; the adjustable connecting plate 3 and the mounting tube 4 are respectively connected to the adaptive card holder 2 through a connecting mechanism; the connecting mechanism includes a mounting block 9, and the mounting block 9 is respectively fixed on the adjustable connecting plate 3 and the mounting tube 4; a sliding rod 10 is slidably installed on the mounting block 9, and a connecting block 12 is arranged at the other end of the sliding rod 10; a first spring 11 is sleeved on the sliding rod 10, and the first spring 11 is arranged between the mounting block 9 and the connecting block 12; the top of the connecting block 12 is fixedly connected to the bottom of the adaptive card holder 2.

[0030] This sliding design allows the slide bar 10 to move within a certain range to adapt to different installation environments and requirements; the first spring 11 is sleeved on the slide bar 10 to play a buffering and resetting role. During the installation of the strain gauge, the first spring 11 can absorb and relieve the impact force generated during the installation process to protect the strain gauge from damage. At the same time, when the position of the strain gauge needs to be adjusted, the resetting function of the first spring 11 can help the slide bar 10 quickly return to the initial position, which is convenient for the next installation;

[0031] The setting of the adjustable connecting plate 3 and the mounting tube 4 further enhances the fixing effect of the strain gauge. By adjusting the position and angle of the connecting plate 3 and the mounting tube 4, the strain gauge body can be better adapted to the structure of the steel cage, ensuring that it is stable in position and not easily displaced during the concrete pouring process;

[0032] The design of the connection mechanism enables the holder 2 to be stably connected to the connection plate 3 and the installation tube 4, ensuring the stability and reliability of the entire strain gauge structure; through the coordinated use of the adaptive holder 2, the adjustable connection plate 3 and the installation tube 4, the strain gauge can be quickly fixed at a predetermined position in the steel cage;

[0033] The adjustable connecting plate 3 and the bottom of the installation tube 4 are respectively fixedly connected with connecting columns 5, and the bottom of the connecting column 5 is provided with a limit seat 6 for clamping and fixing the steel bar frame; Figure 4 As shown, a clamping plate 7 is arranged in the limiting seat 6 , a first bolt 8 is arranged on the limiting seat 6 , and one end of the first bolt 8 is fixedly connected to the clamping plate 7 .

[0034] The connecting column 5 and the limit seat 6 connect and fix the strain gauge to the steel cage. The adjustable clamp 7 in the limit seat 6 can be adjusted according to the diameter of the steel bar. Through the tightening action of the first bolt 8, the clamp 7 tightly clamps the steel bar, thereby achieving a firm connection between the strain gauge and the steel bar. Since the strain gauge is firmly fixed, it is not easily affected by the steel bar welding and concrete pouring process, thereby reducing the safety hazards caused by the displacement and overturning of the strain gauge.

[0035] An anti-sliding block 13 is arranged in the adaptive card holder 2, and a second bolt 14 for adjusting the height of the anti-sliding block 13 is arranged on the adaptive card holder 2, and the top of the second bolt 14 is fixedly connected to the bottom of the anti-sliding block 13. The anti-sliding block 13 can be adjusted according to the diameter and surface conditions of the steel bar, and its height can be changed to adapt to different installation environments. This adjustable design not only improves the flexibility of strain gauge installation, but also ensures its stability under various conditions.

[0036] like Figure 3As shown, the mounting tube 4 is provided with a telescopic adjustment mechanism, which includes a slide plate 15 slidably mounted in the mounting tube 4, one end of the slide plate 15 being fixedly connected to the adjustable connecting plate 3; a plurality of limit slots 16 are provided at the bottom of the slide plate 15; a mounting frame 18 is fixed at the bottom of the mounting tube 4, a pin rod 19 is provided through the mounting frame 18, the top end of the pin rod 19 is fixedly connected to a limit block 17, and the limit block 17 is provided in the limit slot 16; a second spring 20 is provided in the mounting frame 18, the second spring 20 is sleeved on the pin rod 19, and a through hole is provided on the mounting tube 4 for the pin rod 19 and the limit block 17 to pass through. A pull ring is fixedly installed at the bottom end of the pin rod 19, so that the user can easily pull the pin rod 19.

[0037] The connecting plate 3 can be slidably adjusted in the installation tube 4. When the pin rod 19 moves, the limit block 17 will also move accordingly, thereby realizing the adjustment of the limit position in the limit groove 16; the second spring 20 is sleeved on the pin rod 19, which plays a buffering and resetting role. When adjusting the position of the limit block 17, the second spring 20 can absorb and alleviate the impact force during the operation, and protect the limit block 17 and the pin rod 19 from damage. At the same time, when the position of the limit block 17 needs to be fixed, the resetting effect of the second spring 20 can help the pin rod 19 and the limit block 17 quickly return to the initial position, which is convenient for the next adjustment and improves the flexibility of installation.

[0038] A level bubble 21 for measuring level is embedded on one side of the adaptive card holder 2. During the installation process, the user can easily observe the state of the level bubble 21 to ensure that the card holder 2 and the strain gauge are installed in a horizontal state. The use of the level bubble 21 greatly improves the accuracy and reliability of the installation, avoiding problems such as measurement errors or installation failures caused by uneven installation.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The content of the utility model is not limited to the examples listed, and any equivalent changes made to the technical solution of the utility model by ordinary technicians in this field after reading the specification of the utility model are covered by the claims of the utility model.

Claims

1. An embedded strain gauge installation device, characterized in that: It comprises an embedded strain gauge body (1), wherein both ends of the embedded strain gauge body (1) are respectively provided with adaptive clamping seats (2) for limiting position; an adjustable connecting plate (3) and a mounting cylinder (4) are provided below the adaptive clamping seat (2); The adjustable connecting plate (3) and the bottom of the installation tube (4) are respectively fixedly connected with connecting columns (5), and the bottom of the connecting column (5) is provided with a limiting seat (6) for clamping and fixing the steel bar frame; The adjustable connecting plate (3) and the mounting tube (4) are respectively connected to the adaptive card holder (2) via connecting mechanisms; The connecting mechanism comprises a mounting block (9), wherein the mounting block (9) is respectively fixed on the adjustable connecting plate (3) and the mounting tube (4); a slide rod (10) is slidably mounted on the mounting block (9), and a connecting block (12) is arranged at the other end of the slide rod (10); a first spring (11) is sleeved on the slide rod (10), and the first spring (11) is arranged between the mounting block (9) and the connecting block (12); the top of the connecting block (12) is fixedly connected to the bottom of the adaptive card seat (2).

2. The embedded strain gauge installation device according to claim 1, characterized in that: A clamping plate (7) is arranged inside the limiting seat (6), and a first bolt (8) is arranged on the limiting seat (6), and one end of the first bolt (8) is fixedly connected to the clamping plate (7).

3. The embedded strain gauge installation device according to claim 1, characterized in that: An anti-sliding block (13) is arranged inside the adaptive card seat (2), and a second bolt (14) for adjusting the height of the anti-sliding block (13) is arranged on the adaptive card seat (2), and the top end of the second bolt (14) is fixedly connected to the bottom end of the anti-sliding block (13).

4. The embedded strain gauge installation device according to claim 3, characterized in that: The mounting tube (4) is provided with a telescopic adjustment mechanism, the telescopic adjustment mechanism comprising a slide plate (15) slidably mounted in the mounting tube (4), one end of the slide plate (15) being fixedly connected to the adjustable connecting plate (3); A plurality of limiting grooves (16) are arranged at the bottom of the slide plate (15); a mounting frame (18) is fixed at the bottom of the mounting tube (4); a pin rod (19) is arranged through the mounting frame (18); the top end of the pin rod (19) is fixedly connected to a limiting block (17); the limiting block (17) is arranged in the limiting groove (16); a second spring (20) is arranged in the mounting frame (18); the second spring (20) is sleeved on the pin rod (19).

5. The embedded strain gauge installation device according to claim 4, characterized in that: A pull ring is fixedly mounted on the bottom end of the pin rod (19).

6. The embedded strain gauge installation device according to claim 5, characterized in that: A level bubble (21) for measuring level is inlaid on one side of the adaptive card seat (2).

7. The embedded strain gauge installation device according to claim 6, characterized in that: The installation cylinder (4) is provided with a through hole through which the pin rod (19) and the limit block (17) can pass.

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