Convenient and efficient modular wave height meter calibration device

Abstract

The utility model relates to a convenient and efficient modularized wave height meter calibration device, which belongs to the field of wave height meter calibration devices and comprises a water bucket, and the axis of the water bucket is vertically arranged; the upper part of the bucket is open; a sliding rod is fixed to the inner bottom wall of the water bucket, and the axis of the sliding rod is arranged in the vertical direction. A sliding block is arranged on the sliding rod and can slide along the axis of the sliding rod; n threaded holes are formed in the peripheral wall of the sliding block and penetrate through the sliding block; a limiting bolt is in threaded connection in one threaded hole, and the sliding block can be fixed to the sliding rod through the limiting bolt; a connecting structure is installed in at least one of the other N-1 threaded holes, a wave height meter is installed on the connecting structure, the lower ends of two stainless steel conductors of the wave height meter are equal in height, and the two stainless steel conductors of the wave height meter can stretch into the position below the water surface in the water bucket at the same time; the surface of the sliding rod is provided with scale marks used for monitoring the positions of the lower ends of the two stainless steel conductors of the wave height meter under the water surface. The device can conveniently calibrate the wave height meter.

Description

Technical Field

[0001] The utility model belongs to the field of wave height meter calibration devices, and in particular relates to a convenient and efficient modular wave height meter calibration device. Background Art

[0002] The interaction between waves and buildings is an important and complex issue. Different wave motion characteristics, wave elements, and the structure and materials of water-based buildings all have an impact on the results. Therefore, physical model testing is often used in research.

[0003] In physical model tests, wave heights are typically measured using a wave height meter. Before use, the wave height meter needs to be calibrated to ensure the accuracy of the data it measures. Calibration involves placing a portion of the wave height meter's two stainless steel conductors into the water, recording the submerged depth of the stainless steel conductors and the corresponding water resistance between the two stainless steel conductors. After multiple recordings, the results are fitted to an inversely proportional curve using a computer. The root mean square difference between the actual water resistance and the fitted value is then calculated. If the difference is within a threshold, the wave height meter is allowed to be used; otherwise, it cannot be used.

[0004] The current calibration method still involves using cable ties to bind the wave height meter and then placing the wave height meter's stainless steel conductor into water at different depths. Because the cable ties are non-rigid, they can easily cause the wave height meter's probe to shake, resulting in insufficient stability during the test. Furthermore, it is impossible to easily determine the water depth of the wave height meter probe, and a ruler or other tool is required to measure the water depth of the wave height meter probe, which is inconvenient to use.

[0005] Therefore, there is an urgent need for a modular wave height meter calibration device that is widely applicable, convenient and efficient. Utility Model Content

[0006] The utility model provides a convenient and efficient modular wave height meter calibration device, which can calibrate the wave height meter more conveniently.

[0007] The utility model discloses a convenient and efficient modular wave height meter calibration device, comprising a water bucket, wherein the axis of the water bucket is arranged vertically; the top of the water bucket is open;

[0008] A sliding rod is fixed to the inner bottom wall of the bucket, and the axis of the sliding rod is arranged vertically; a slider is provided on the sliding rod, and the slider can slide along the axis of the sliding rod; N threaded holes are provided on the peripheral wall of the slider, and the threaded holes pass through the slider; a limiting bolt is threadedly connected to one of the threaded holes, and the slider can be fixed to the sliding rod by the limiting bolt; at least one of the other N-1 threaded holes is installed in a connecting structure, and a wave height meter is installed on the connecting structure. The lower ends of the two stainless steel conductors of the wave height meter are at the same height and can simultaneously extend below the water surface in the bucket;

[0009] The surface of the sliding rod is provided with scale lines for monitoring the position of the lower ends of the two stainless steel conductors of the wave height meter below the water surface.

[0010] Furthermore, the connection structure includes:

[0011] A connecting portion capable of being threadedly connected to a corresponding threaded hole;

[0012] two limiting parts fixed to one end of the connecting part;

[0013] At least two clamping assemblies are arranged in parallel on the two limiting parts along the horizontal direction; the clamping assemblies include:

[0014] The first rubber pad has two limiting parts, namely, limiting part X and limiting part Y. The first rubber pad is bonded to the limiting part X and is located between the limiting part X and the limiting part Y.

[0015] An adjusting bolt passes through the restricting portion Y and is threadedly connected to the restricting portion Y;

[0016] The second rubber pad is fixed to the end of the adjusting bolt facing the first rubber pad.

[0017] By screwing the adjusting bolt, the first rubber pad and the second rubber pad of the clamping assembly can jointly clamp the two stainless steel conductors of the wave height meter, which is easy to operate and has a simple structure.

[0018] Furthermore, the inner bottom wall of the bucket is fixedly connected with a magnetic sheet, and the sliding rod can be adsorbed on the inner bottom wall of the bucket by the magnetic force of the magnetic sheet.

[0019] Because the size of the wave height meter may be different, it is necessary to replace different sliders and slide rods, which are connected to the bucket by magnetic attraction, so that the slide rods and sliders can be directly removed from the bucket and replaced.

[0020] Furthermore, the lower end of the sliding rod is fixedly connected to a base, which is in the shape of a truncated cone. The base coincides with the axis of the sliding rod, and the end with a larger base area is magnetically attracted to the magnetic sheet; the end with a smaller base area is fixedly connected to the lower end of the sliding rod.

[0021] The base not only increases the weight of the lower end of the slider, lowering its center of gravity and improving overall stability, but also has a larger lower end area, allowing for a larger area of ​​adsorption with the magnetic sheet, making the connection more secure.

[0022] Furthermore, a drain pipe is fixedly connected to the circumferential side wall of the water bucket, and a valve is fixedly installed on the drain pipe.

[0023] After the wave height meter has been calibrated, the drain pipe can be opened through the valve to drain the water in the bucket.

[0024] Furthermore, a scale line cursor is fixed on the upper surface of the slider.

[0025] The scale lines can be indicated by the scale line cursor. If there is no scale line cursor, the scale lines can also be indicated by the slider itself. This is subject to the shape of the slider. If the slider does not have a more obvious protruding part, it will not be able to accurately point to the scale line, which may easily cause the scale of the indicated scale line to be inaccurate.

[0026] Beneficial effects

[0027] This device features a slider and a rod, allowing the wave height meter's stainless steel conductor to be adjusted in height and position in the water. Compared to using cable ties to adjust depth, using a slider and rod is more convenient.

[0028] The scale line is set so that the adjusted height can be accurately known, so that the position of the lower end of the stainless steel conductor in the water can be calculated more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the device;

[0030] Figure 2 is a top view of the connection structure;

[0031] Figure 3 It is a structural diagram of the slider and scale line cursor;

[0032] Figure 4 It is a structural diagram of the slider;

[0033] Figure 5 It is a top view of the device.

[0034] 1. Bucket; 2. Drain pipe; 3. Water valve; 4. Slide rod; 5. Slider; 6. Threaded hole; 7. Limiting bolt; 8. Connection structure; 81. Connection part; 82. Limiting part; 83. First rubber pad; 84. Adjustment bolt; 85. Second rubber pad; 9. Scale line cursor; 10. Scale line; 11. Base. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0036] See Figure 1 A convenient and efficient modular wave height meter calibration device includes a water bucket 1 with an open top. A drain pipe 2 is fixedly connected to the outer wall of the lower end of the water bucket 1. A water valve 3 is fixedly mounted on the drain pipe 2. When the water valve 3 is opened, the water in the water bucket 1 can be drained out of the water bucket 1 through the drain pipe 2.

[0037] A magnetic sheet (not shown) is fixedly connected to the inner bottom wall of the bucket 1. In this embodiment, the magnetic sheet is adhered to the inner bottom wall of the bucket 1. The magnetic sheet has magnetic force and can absorb iron objects.

[0038] See Figure 1 、 Figure 4 and Figure 5 , also includes a slide rod 4, the axis of which is arranged vertically, made of iron, and the lower end of which can be adsorbed on the magnetic sheet. In this embodiment, the end face shape of the slide rod 4 is a regular polygon. A slider 5 is sleeved on the slide rod 4, the inner wall of the slider 5 contacts the outer wall of the slide rod 4, and the slider 5 is movably clamped on the slide rod 4 and can slide along the axis of the slide rod 4. In this embodiment, the shape of the slider 5 is a regular polyhedron, and the axis of the slider 5 coincides with the axis of the slide rod 4. Figure 4 In order to ensure that the sliding rod 4 can be stably adsorbed on the magnetic sheet, a base 11 is fixed to the lower end of the sliding rod 4. The base 11 is also made of iron. In this embodiment, the shape of the base 11 is a truncated cone. The axis of the base 11 coincides with the axis of the sliding rod 4. The bottom surface of the base 11 with a smaller area is welded to the sliding rod 4, and the bottom surface of the base 11 with a larger area is adsorbed to the magnetic sheet through magnetic force.

[0039] See Figure 3 and Figure 5 , it is assumed that the slider 5 has N side surfaces, each side surface of the slider 5 is provided with a threaded hole 6, and each threaded hole 6 is arranged in an array along the circumference of the axis of the slide rod 4. Each threaded hole 6 passes through the slider 5.

[0040] See Figure 5 A limiting bolt 7 is threadedly connected to one of the threaded holes 6, and a connecting structure 8 is threadedly connected to each of the other N-1 threaded holes 6. After the limiting bolt 7 is screwed into the corresponding threaded hole 6, the end of the limiting bolt 7 abuts against the outer wall of the slide bar 4, ensuring that the limiting bolt 7 and the slide bar 4 as a whole cannot slide freely along the slide bar 4.

[0041] See Figure 2 , the connection structure 8 includes:

[0042] The connecting portion 81 is rod-shaped and is threadedly connected to the corresponding threaded hole 6 ; one end is located in the corresponding threaded hole 6 , and the other end extends out of the threaded hole 6 .

[0043] The two limiting portions 82 are fixed to one end of the connecting portion 81 outside the threaded hole 6. When viewed from above, the connecting portion 81 and the two limiting portions 82 form a whole A, which is in the shape of a "Y".

[0044] Multiple clamping assemblies are arranged horizontally and side by side on the two limiting parts 82 to limit the two stainless steel conductor probes of the wave height meter. In this embodiment, the two clamping assemblies are spaced apart along the axis of the limiting part 82, and two clamping assemblies are provided on each unit A. The clamping assemblies include:

[0045] The first rubber pad 83 is provided with two limiting portions, namely the limiting portion X and the limiting portion Y. The first rubber pad 83 is bonded to the limiting portion X, and the first rubber pad 83 is located between the limiting portion X and the limiting portion Y.

[0046] The adjusting bolt 84 is threadedly connected to the restricting portion Y. The axis of the adjusting bolt 84 is arranged horizontally.

[0047] The second rubber pad 85 is fixed to one end of the adjusting bolt 84 facing the first rubber pad 83 . The adjusting bolt 84 can be screwed to move the second rubber pad 85 away from or closer to the first rubber pad 83 in the horizontal direction.

[0048] See Figure 3 The upper surface of the slider 5 is fixedly connected with a scale line cursor 9, and a scale line 10 is vertically provided on the peripheral wall of the slide rod 4. The scale line cursor 9 indicates the scale line 10, which is used to indicate the change in the depth of the wave height meter probe entering the water.

[0049] The use of this device

[0050] First, assemble the device: screw the limiting bolt 7 into one of the threaded holes 6, and ensure that the limiting bolt 7 and the slider 5 can be fixed on the slider 4 as a whole by abutting the limiting bolt 7 against the slider 4.

[0051] Then, the connecting structure 8 is screwed into the other threaded holes 6. Since there are N-1 threaded holes 6, a total of N-1 connecting structures 8 can be screwed in. Only one connecting structure 8 is used as an example here. After the single connecting structure 8 is screwed into the threaded hole 6, it is necessary to ensure that the axis of the adjustment bolt 84 is horizontal. If it is not horizontal, the connecting structure 8 needs to be screwed into the threaded hole 6 until the axis of the adjustment bolt 84 is horizontal. Auxiliary tools such as a level are used to ensure that the axis of the adjustment bolt 84 is horizontal.

[0052] Secure the wave height meter's two stainless steel conductors to the two clamping assemblies. Specifically, position the two stainless steel conductors between the first rubber pad 83 and the second rubber pad 85 of each clamping assembly. Tighten the adjustment bolts 84 of the two clamping assemblies to secure the two stainless steel conductors. During installation, use an auxiliary tool, such as a level, to ensure the lower ends of the two stainless steel conductors are at the same height and that they are positioned vertically.

[0053] Next, add water to bucket 1, ensuring that the water in bucket 1 covers the lower ends of the two stainless steel conductors of the wave height meter. At this point, although the height of the water in bucket 1 above the stainless steel conductors is unknown, the height here refers to the distance from the lower end of the stainless steel conductors to the water surface, which is set as Hx. At this time, the water resistance between the two stainless steel conductors of the wave height meter is read by the computer and recorded as R1.

[0054] Then, loosen the limiting bolt 7 and lower it to a certain height H1. At this point, the height to which the water in bucket 1 submerges the stainless steel conductor is (Hx + H1). At this point, the water resistance between the two stainless steel conductors of the wave height meter is read again by the computer and recorded as R2. According to the rule that the water resistance between conductors is inversely proportional to the depth of conductor immersion, we can know that Hx*R1=(Hx+H1)*R2(1). In equation (1), only Hx is unknown, so Hx can be solved. Because Hx has been solved, the height to which the water in bucket 1 submerges the stainless steel conductor is known, and the height to which the water in bucket 1 submerges the stainless steel conductor is also known.

[0055] Loosen the limiting bolt 7 again and lower the height to a certain level H2. At this time, the height to which the water in the bucket 1 covers the stainless steel conductor is (Hx+H1+H2). The water resistance between the two stainless steel conductors of the wave height meter is read by a computer and recorded as R3. Similarly, the heights of several groups of stainless steel conductors submerged in water and the corresponding water resistances between the two stainless steel conductors are obtained and summarized as data.

[0056] Based on the principle that the water resistance between conductors is inversely proportional to the conductor's submergence depth, we can fit the data using an inverse proportional curve, denoted as Curve K. Next, we calculate the root mean square error between the actual water resistance in the data and the fitted water resistance obtained from the inverse proportional curve K. If the error is less than a threshold, the wave height meter is accurate and can be used. Otherwise, it is inaccurate and cannot be used. This completes the calibration of the wave height meter. After calibration, drain the water from bucket 1 through valve 3.

[0057] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A convenient and efficient modular wave height meter calibration device, characterized in that: The invention comprises a water bucket (1), wherein the axis of the water bucket (1) is arranged vertically; the top of the water bucket (1) is open; A slide bar (4) is fixed to the inner bottom wall of the water bucket (1), and the axis of the slide bar (4) is arranged in the vertical direction; a slider (5) is provided on the slide bar (4), and the slider (5) can slide along the axis of the slide bar (4); N threaded holes (6) are provided on the peripheral wall of the slider (5), and the threaded holes (6) pass through the slider (5); a limiting bolt (7) is threadedly connected in one of the threaded holes (6), and the slider (5) can be fixed to the slide bar (4) through the limiting bolt (7); a connecting structure (8) is installed in at least one of the other N-1 threaded holes (6), and a wave height meter is installed on the connecting structure (8), and the lower ends of two stainless steel conductors of the wave height meter are at the same height, and the two stainless steel conductors of the wave height meter can simultaneously extend below the water surface in the water bucket (1); The surface of the sliding rod (4) is provided with a scale line (10) for monitoring the position of the lower ends of the two stainless steel conductors of the wave height meter below the water surface.

2. A convenient and efficient modular wave height meter calibration device according to claim 1, characterized in that: The connecting structure (8) comprises: A connecting portion (81) capable of being threadedly connected to a corresponding threaded hole (6); Two limiting parts (82) are fixed to one end of the connecting part (81); At least two clamping assemblies are arranged in parallel on two limiting parts (82) along the horizontal direction; the clamping assemblies include: A first rubber pad (83) is provided with two limiting parts (82), namely, limiting part X and limiting part Y. The first rubber pad (83) is bonded to the limiting part X, and the first rubber pad (83) is located between the limiting part X and the limiting part Y. an adjusting bolt (84) passing through the restriction portion Y and being threadedly connected to the restriction portion Y; The second rubber pad (85) is fixed to one end of the adjusting bolt (84) facing the first rubber pad (83).

3. A convenient and efficient modular wave height meter calibration device according to claim 1, characterized in that: The inner bottom wall of the water bucket (1) is fixedly connected with a magnetic sheet, and the slide rod (4) can be adsorbed on the inner bottom wall of the water bucket (1) by the magnetic force of the magnetic sheet.

4. A convenient and efficient modular wave height meter calibration device according to claim 3, characterized in that: The lower end of the slide bar (4) is fixedly connected to a base (11), the base (11) is in the shape of a truncated cone, the base (11) coincides with the axis of the slide bar (4), the end of the base (11) with a larger area is attracted to the magnetic sheet by magnetic force; the end of the base (11) with a smaller area is fixedly connected to the lower end of the slide bar (4).

5. A convenient and efficient modular wave height meter calibration device according to claim 3, characterized in that: A drainage pipe (2) is fixedly connected to the circumferential side wall of the water bucket (1), and a valve is fixedly installed on the drainage pipe (2).

6. A convenient and efficient modular wave height meter calibration device according to claim 3, characterized in that: A scale line cursor (9) is fixed on the upper surface of the slider (5).

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