Displacement meter device

Abstract

The utility model discloses a displacement meter device which comprises a displacement meter body and a magnetic meter seat. The magnetic gauge stand is rotatably connected with a gauge stand support, one end, far away from the magnetic gauge stand, of the gauge stand support is rotatably connected with a concave support, and one side, far away from the gauge stand support, of the concave support is connected with the displacement meter body; one end of the displacement meter body is spirally connected with a probe, and the other end is slidably connected with a measuring rod; a first universal horizontal bubble is arranged at one end, which is in sliding connection with the measuring rod, of the displacement meter body; and a second universal horizontal bubble is arranged at one end, which is close to the probe, of the concave bracket. According to the utility model, whether the displacement meter is in a vertical state can be visually judged, and the reliability and the accuracy of a measurement result are ensured; meanwhile, a worker can conveniently observe whether the displacement generated by the displacement meter is consistent with the data displayed by the displacement acquisition instrument, and the actual displacement condition can be intuitively reflected.

Description

Technical Field

[0001] The utility model relates to the technical fields of civil engineering and construction engineering, in particular to a displacement meter device for bridge load tests and convenient for calibration. Background Art

[0002] With the rapid development of infrastructure construction, the number of bridges has increased sharply. Due to long-term service aging and overloading, etc., bridge structures are facing severe safety problems. The load test is a means of inspection for directly testing the overall working state of a bridge structure outdoors, and can most directly understand the true response of the bridge structure under the action of loads. Displacement meters are often installed at the bottom of the beam of the test section of the bridge structure and at the supports to measure the deflection at the test section of the bridge structure and the settlement at the supports. At the same time, during the loading process of the indoor test beam load test in civil engineering, it is necessary to use a displacement meter to measure the displacement change value in the deformation area of the component, and then monitor the deflection of the specimen during the loading process. Displacement meters play an important role in civil engineering tests and bridge load tests because of their simple usage method and relatively accurate measurement results, providing reliable data support for engineering design, construction and maintenance.

[0003] Ensuring that the displacement meter is in a vertical state during the installation process is crucial for obtaining accurate and reliable measurement data, ensuring structural safety, and correctly interpreting the data. Since the operating space at the bottom of the main beam or test beam is limited and there is no standard reference object, it is not easy to directly determine whether the displacement meter is in a vertical state during the installation of the displacement meter; at the same time, during the test process, it is difficult to ensure whether the displacement generated by the displacement meter is consistent with the data displayed by the displacement collector. Currently, during the installation process of traditional displacement meters, whether the displacement meter is in a vertical state and whether there are errors in the displacement meter are usually observed with the naked eye, and the deviations that occur are inevitable, resulting in inaccurate measurement results and being unable to reflect the actual displacement situation. Summary of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the utility model provides a displacement meter device, which particularly solves the problem that the displacement meter is not perpendicular to the surface to be measured during the load test process.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a displacement meter device, including: a displacement meter body and a magnetic base; a base support is rotatably connected to the magnetic base, and a concave support is rotatably connected to one end of the base support away from the magnetic base, and the displacement meter body is connected to the side of the concave support away from the base support;

[0007] One end of the displacement gauge body is screwed with a probe, and the other end is slidably connected with a measuring rod; a first universal spirit level is arranged at one end of the displacement gauge body where the measuring rod is slidably connected, and a second universal spirit level is arranged at one end of the concave bracket close to the probe.

[0008] As a further technical solution, a reflective strip is glued to the side position of the displacement gauge body by strong glue. The reflective strip is composed of glass beads or polymer reflective particles and is used to reflect light to play a warning role.

[0009] As a further technical solution, a clamping groove is formed on one side of the concave bracket, and the displacement gauge body is connected to the concave bracket through the clamping groove.

[0010] As a further technical solution, the head end of the measuring rod extends into the displacement gauge body, and the tail end of the measuring rod extends out of the displacement gauge body to the outside. Scale lines are arranged on the measuring rod near the tail end, and the initial position of the measuring rod corresponds to the 0 mm scale line.

[0011] As a further technical solution, the first universal spirit level includes a first outer shell, a first bubble tube and a first base; the first bubble tube is arranged inside the first outer shell, the first outer shell is fixed on one side of the first base, and a first bubble is arranged inside the first bubble tube.

[0012] As a further technical solution, a first groove is formed on the upper surface of the first outer shell, and a first lens matching the first groove is embedded in the first groove.

[0013] As a further technical solution, scale lines perpendicular to each other are arranged on the surface of the first bubble tube; the other side of the first base is magnetically attracted to one end of the displacement gauge body where the measuring rod is slidably connected.

[0014] As a further technical solution, the second universal spirit level includes a second outer shell, a second bubble tube and a second base; the second bubble tube is arranged inside the second outer shell, the second outer shell is fixed on one side of the second base, and a second bubble is arranged inside the second bubble tube.

[0015] As a further technical solution, a second groove is formed on the upper surface of the second outer shell, and a second lens matching the second groove is embedded in the second groove.

[0016] As a further technical solution, scale lines perpendicular to each other are arranged on the surface of the second bubble tube; the other side of the second base is magnetically attracted to one end of the concave bracket close to the probe.

[0017] One or more technical solutions of the present utility model have the following beneficial effects:

[0018] 1. The utility model is designed with a first universal spirit level, a second universal spirit level and a measuring rod with scale lines, which can effectively ensure the perpendicularity of the displacement meter to the surface to be measured and the accuracy of the displacement measurement of the displacement meter. The first universal spirit level and the second universal spirit level can accurately respond to the minute changes of the displacement meter, and can intuitively judge whether the displacement meter is in the vertical state, ensuring the reliability and accuracy of the measurement results. And the measuring rod with scale lines can facilitate the staff to observe whether the displacement generated by the displacement meter is consistent with the data displayed by the displacement acquisition instrument, and can intuitively reflect the actual displacement situation. At the same time, through the cooperation of the first bubble, the second bubble and the scale lines, the utility model can effectively judge the deviation degree of the perpendicularity, facilitate the adjustment of the perpendicularity of the displacement meter device, and improve the test accuracy of the displacement meter device.

[0019] 2. In the utility model, the first universal spirit level and the second universal spirit level can be fixed by using adsorption magnets, which is convenient for disassembly. And the utility model is also designed with a reflective strip on the displacement meter body to play a warning role in case of insufficient test light, avoid collision, and ensure the accuracy of test data. The structure of the utility model is simple, the operation is convenient, it can directly observe whether the displacement meter meets the test requirements, saves the calibration time, improves the test efficiency, and has strong economy and practicability, and has the promotion value of engineering practical application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The attached drawings forming a part of this specification are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model.

[0021] Figure 1 It is a use state diagram when measuring the lower plane of the displacement meter device of the utility model;

[0022] Figure 2 It is a top view of the displacement meter device of the utility model;

[0023] Figure 3 It is a bottom view of the displacement meter device of the utility model;

[0024] Figure 4 It is a plan view of the first universal spirit level in the displacement meter device of the utility model;

[0025] Figure 5 It is an elevation view of the first universal spirit level of the displacement meter device of the utility model;

[0026] Figure 6 It is a use state diagram when measuring the upper plane of the displacement meter device of the utility model;

[0027] Wherein: 1 - displacement gauge body, 2 - concave bracket, 3 - dial base bracket, 4 - magnetic dial gauge, 5 - second universal spirit level, 6 - first universal spirit level, 7 - surface to be measured, 8 - first air bubble, 9 - measuring rod, 10 - reflective strip, 11 - first air bubble tube, 12 - first outer shell, 13 - first base. Detailed implementation mode

[0028] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0029] Embodiment 1

[0030] A displacement gauge device provided by the present utility model, as Figure 1 shown, includes a displacement gauge body 1 and a magnetic dial gauge 4. Among them, a dial base bracket 3 is rotatably connected to the magnetic dial gauge 4, and one end of the dial base bracket 3 away from the magnetic dial gauge 4 is rotatably connected to a concave bracket 2. One side of the concave bracket 2 away from the dial base bracket 3 is connected to the displacement gauge body 1. Specifically: a card slot is provided on one side of the concave bracket 2, and the displacement gauge body 1 is connected to the concave bracket 2 through the card slot. One end of the displacement gauge body 1 is screwed with a probe for contacting the surface to be measured 7, and the other end of the displacement gauge body 1 is slidably connected with a measuring rod 9. As Figure 2 shown, a first universal spirit level 6 is provided at the end of the displacement gauge body 1 where the measuring rod 9 is slidably connected. As Figure 3 shown, a second universal spirit level 5 is provided at one end of the concave bracket 2 close to the probe; the first universal spirit level 6 and the second universal spirit level 5 can accurately respond to the minute changes of the displacement gauge, and can intuitively judge whether the displacement gauge is in a vertical state, ensuring the reliability and accuracy of the measurement results.

[0031] In this embodiment, as Figure 1 shown, a reflective strip 10 is adhered to the side position of the displacement gauge body 1 by strong glue. The reflective strip 10 is composed of tiny glass beads or polymer reflective particles, which is used to reflect light and facilitate warning in case of insufficient test light; these tiny glass beads or polymer reflective particles can effectively reflect light, making the reflective strip still significantly visible in a weak light environment, so as to improve the visibility of the displacement gauge and avoid misidentifying it during the test, resulting in damage to the displacement gauge device and affecting the measurement progress and the accuracy of test data.

[0032] By Figure 1As shown, the head end of the measuring rod 9 extends into the displacement meter body 1, and the tail end of the measuring rod 9 extends out of the displacement meter body 1 to the outside. A 45 mm scale line is marked on the measuring rod 9 near the tail end, and the initial position of the measuring rod 9 corresponds to the 0 mm scale line, so that when the measuring rod moves, the displacement situation can be observed at any time through the scale line.

[0033] In this embodiment, the structures of the first universal spirit level and the second universal spirit level are the same, and the difference lies only in the position. Taking the first universal spirit level as an example, as Figure 4 shown, the first universal spirit level includes a first outer shell 12, a first bubble tube 11 and a first base 13. The first outer shell 12 is of a circular structure and is used to protect the internal precision components from external environmental interference. The material of the first outer shell 12 is transparent plastic. The first bubble tube 11 is a glass tube containing optically transparent liquid, and the optically transparent liquid is preferably alcohol. The first bubble tube 11 is arranged inside the first outer shell 12. The first outer shell 12 is fixed on one side of the first base 13, and a first bubble 8 is arranged inside the first bubble tube 11. The position of the first bubble 8 moves with the inclination of the displacement meter body, and scale lines perpendicular to each other are arranged on the surface of the first bubble tube to help the observer accurately determine the inclination angle of the displacement meter body, so as to evaluate the levelness. The first base 13 is made of adsorbed magnet material, and the other side of the first base 13 is magnetically attracted to one end of the displacement meter body 1 where the measuring rod 9 is slidably connected, so as to ensure that the first universal spirit level can be stably placed on the displacement meter body and is convenient for disassembly. Similarly, the second universal spirit level includes a second outer shell, a second bubble tube and a second base. The second bubble tube is arranged inside the second outer shell. The second outer shell is fixed on one side of the second base, and a second bubble is arranged inside the second bubble tube. Scale lines perpendicular to each other are arranged on the surface of the second bubble tube, and the other side of the second base is magnetically attracted to one end of the concave bracket close to the probe. The technical effect of the second universal spirit level is the same as that described for the first universal spirit level.

[0034] In this embodiment, a first groove is formed on the upper surface of the first outer shell, and a first lens matching it is embedded in the first groove. Similarly, a second groove is formed on the upper surface of the second outer shell, and a second lens matching it is embedded in the second groove. The settings of the first lens and the second lens can magnify the first bubble, the second bubble and the scale lines to a certain extent, enhancing the observation effect.

[0035] The specific working method of a displacement meter device provided in this embodiment is as follows:

[0036] First is the installation of the displacement meter device, as Figure 1As shown, place the probe of the displacement meter body 1 on the plane 7 to be measured, and observe the first bubble 8 and the second bubble in the first universal spirit level 6 and the second universal spirit level 5 respectively. If the first bubble 8 and the second bubble are not in the central position, the inclination angle of the displacement meter body can be determined through the vertical scale lines on the first universal spirit level 6 and the second universal spirit level 5, so as to evaluate the levelness; by finely adjusting the position and angle of the meter base bracket 3 or the magnetic base 4, make the first bubble 8 and the second bubble return to the central position, ensure that the perpendicularity of the displacement meter body 1 meets the accuracy requirements, and ensure the reliability and accuracy of the measurement results. As Figure 2 shown, when measuring that the plane 7 to be measured is the upper plane, it is the same as Figure 1 measuring that the plane 7 to be measured is the lower plane.

[0037] After the displacement meter device is installed, gently pull the measuring rod 9 to about 20 mm and observe the change of the data displayed on the displacement acquisition instrument. If the data displayed on the displacement acquisition instrument is consistent with the scale corresponding to the measuring rod 9, it is confirmed that the displacement meter device works effectively.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A displacement gauge device, characterized in that, Comprising: A displacement gauge body and a magnetic base; a base support is rotatably connected to the magnetic base, and a concave support is rotatably connected to the end of the base support away from the magnetic base, and the displacement gauge body is connected to the side of the concave support away from the base support. One end of the displacement gauge body is screwed with a probe, and the other end is slidably connected with a measuring rod; a first universal level bubble is arranged at the end of the displacement gauge body where the measuring rod is slidably connected, and a second universal level bubble is arranged at the end of the concave support close to the probe.

2. The displacement meter device according to claim 1, wherein A reflective strip is adhered by strong glue at the side position of the displacement gauge body, and the reflective strip is composed of glass beads or polymer reflective particles for reflecting light to play a warning role.

3. A displacement gauge device according to claim 1, characterized in that A clamping groove is formed on one side of the concave support, and the displacement gauge body is connected to the concave support through the clamping groove.

4. A displacement gauge device according to claim 1, characterized in that, The head end of the measuring rod extends into the displacement gauge body, and the tail end of the measuring rod extends out of the displacement gauge body to the outside. Scale lines are arranged on the measuring rod near the tail end, and the initial position of the measuring rod corresponds to the 0mm scale line.

5. A displacement gauge device according to claim 1, characterized in that, The first universal level bubble includes a first outer shell, a first bubble tube and a first base; the first bubble tube is arranged inside the first outer shell, the first outer shell is fixed on one side of the first base, and a first bubble is arranged in the first bubble tube.

6. A displacement gauge device according to claim 5, characterized in that, A first groove is formed on the upper surface of the first outer shell, and a first lens matching the first groove is embedded in the first groove.

7. The displacement gauge device according to claim 5, characterized in that, Scale lines perpendicular to each other are arranged on the surface of the first bubble tube; the other side of the first base is magnetically attracted to the end of the displacement gauge body where the measuring rod is slidably connected.

8. A displacement gauge device according to claim 1, characterized in that, The second universal level bubble includes a second outer shell, a second bubble tube and a second base; the second bubble tube is arranged inside the second outer shell, the second outer shell is fixed on one side of the second base, and a second bubble is arranged in the second bubble tube.

9. A displacement gauge device according to claim 8, characterized in that, A second groove is formed on the upper surface of the second outer shell, and a second lens matching the second groove is embedded in the second groove.

10. A displacement meter device according to claim 8, characterized in that, Scale lines perpendicular to each other are arranged on the surface of the second bubble tube; the other side of the second base is magnetically attracted to the end of the concave support close to the probe.

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