Multi-medium test device for ice structure

Abstract

The utility model provides a multi-medium testing device aiming at an ice structure. Comprising a lower supporting frame, an upper supporting frame is connected to the upper portion of the lower supporting frame, and a target plate part is connected to the upper portion of the upper supporting frame; the lower supporting frame comprises a rectangular bottom plate, the four corners of the upper surface of the rectangular bottom plate are each connected with the lower portion of a supporting bottom column, and the upper portions of the supporting bottom columns are embedded into the lower portions of the supporting top columns; the target plate part comprises an upper flange, an upper clamping plate, an ice target plate, a lower clamping plate and a lower flange which are sequentially arranged from top to bottom, and a connecting screw sequentially penetrates through connecting holes in the upper flange, the upper clamping plate, the lower clamping plate and the lower flange from top to bottom and then is connected with a threaded hole in the upper surface of the rectangular top frame; the upper flange, the upper clamping plate, the lower clamping plate and the lower flange are hollow rectangular frames. The testing device designed by the utility model can be used for a mechanical property test of interaction between a target plate structure and multiple media, and is particularly suitable for brittle materials such as ice and the like.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding and marine engineering technology, and more particularly to a multi-media testing device for ice structures. Background Technology

[0002] With global warming and the development of Arctic shipping routes, the rich resources and unique geographical location of the Arctic region are becoming increasingly important for national energy security and strategic deployment. The significance of conducting research on the interaction between air, water, sea ice and structures is self-evident. Considering the harsh environment, sensitive nature, and meter-thick sea ice in the polar regions, conducting on-site, full-scale experiments is extremely difficult. Therefore, conducting scaled-down mechanistic experiments on the response of ice structures under multi-media environments is an excellent choice.

[0003] In existing target plate response tests, two hollow flanges are typically used to clamp and fix the target plate. Holes need to be drilled at corresponding positions on both the flanges and the target plate, screws are inserted, and nuts are tightened to achieve a rigid boundary condition around the target plate. However, this method can only fix sufficiently rigid metal structures, such as steel plates, and cannot fix brittle structures. Drilling holes at the boundary of brittle materials will cause the structure to break directly or lose strength, making the test impossible. Furthermore, existing testing equipment cannot flexibly set the environmental conditions of the target plate, thus failing to meet diverse testing requirements. Utility Model Content

[0004] To address the technical problem mentioned above that existing target plate response tests cannot effectively fix ice structure materials, this invention provides a multi-media testing device for ice structures. This invention features a specially designed target plate fixing end, utilizing the moderate compression of the clamping plate to fix the ice structure around its perimeter. This avoids stress concentration from the clamping force that could damage the ice structure, and also avoids the disadvantages of drilling holes in the ice structure.

[0005] The technical means adopted in this utility model are as follows:

[0006] A multi-media testing device for ice structures includes a lower support frame, an upper support frame connected above the lower support frame, and a target plate connected above the upper support frame.

[0007] The supporting lower frame includes a rectangular base plate, and the four corners of the upper surface of the rectangular base plate are respectively connected to the lower part of a supporting base column. The upper part of the supporting base column is nested with the lower part of the supporting top column.

[0008] The supporting frame includes a hollow rectangular top frame, with the four corners of the lower surface of the rectangular top frame connected to the upper part of a supporting top column, and threaded holes provided on the upper surface of the rectangular top frame.

[0009] The target plate includes an upper flange, an upper clamping plate, an ice target plate, a lower clamping plate, and a lower flange arranged sequentially from top to bottom. The connecting screw passes through the connecting holes on the upper flange, the upper clamping plate, the lower clamping plate, and the lower flange sequentially from top to bottom and connects to the threaded hole on the upper surface of the rectangular top frame. The upper flange, the upper clamping plate, the lower clamping plate, and the lower flange are hollow rectangular frames.

[0010] Furthermore, a lower cavity box is provided below the lower clamping plate, and a medium is provided inside the lower cavity box. The lower cavity box is a hollow cuboid structure with an open top. The lower cavity box is located between the lower clamping plate and the lower flange. The edge of the opening surface of the lower cavity box is provided with an outer edge, and the inner ring of the lower flange is provided with a groove. The outer edge of the lower cavity box matches the groove of the lower flange.

[0011] Furthermore, an upper cavity box is provided above the upper clamping plate, and a medium is provided inside the upper cavity box. The upper cavity box is a hollow cuboid structure with an open bottom. The upper cavity box is located between the upper flange and the upper clamping plate. The edge of the opening surface of the upper cavity box is provided with an outer edge. The inner ring of the upper flange is provided with an upward groove. The outer edge of the lower cavity box matches the groove of the lower flange.

[0012] Furthermore, a lower cavity box is provided below the lower clamping plate, and a medium is provided inside the lower cavity box. The lower cavity box is a hollow cuboid structure with an open top. The lower cavity box is located between the lower support frame and the upper support frame. The edge of the opening surface of the lower cavity box is provided with an outer edge. The inner ring of the lower flange is provided with a groove. The outer edge of the lower cavity box matches the groove of the lower flange.

[0013] An upper cavity box is provided above the upper clamping plate. The upper cavity box contains a medium. The upper cavity box is a hollow cuboid structure with an open bottom. The edge of the opening surface of the upper cavity box is provided with an outer edge. The inner ring of the upper flange is provided with an upward groove. The outer edge of the upper cavity box matches the groove of the upper flange.

[0014] Furthermore, a rubber gasket is provided inside the groove.

[0015] Furthermore, a counterweight is installed on the base plate between the two supporting columns.

[0016] Furthermore, a triangular reinforcing structure is provided between the supporting column and the base plate.

[0017] Furthermore, the top support column is equipped with a scale and several height adjustment holes, and the bottom support column is equipped with a height adjustment knob and screw holes.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] First, this experimental setup features a specially designed target plate fixing end. An open-hole clamping plate is installed between the upper and lower flanges and the target plate. The moderate compression of the clamping plate secures the ice structure around its perimeter, ensuring the clamping force is evenly distributed across the structure. This clamping method avoids structural strength loss or breakage caused by drilling holes at the edges of the ice structure. Compared to existing experimental setups, this expands the range of target plate material properties that can be selected. Second, this experimental setup can utilize the grooves in the flanges and the outer edges of the cavities to create cavities on both sides of the target plate, enabling response tests on ice structures under up to five different media combinations. Finally, the flanges, clamping plates, and air chambers are all made of transparent acrylic material, facilitating observation and photography throughout the entire experimental process.

[0020] The experimental device designed in this invention can be used for mechanistic experiments on the interaction between target plate structures and multiple media, and is especially suitable for brittle materials such as ice. It can conduct cross-media interaction experiments between structures and ice to study the multiphase coupling characteristics of structure-ice-gas-water and the kinematic characteristics of structures; it can also conduct underwater explosion icebreaking mechanism experiments to study the damage characteristics of underwater explosion loads on ice structures, and can support a series of fluid-structure interaction mechanism experiments. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of the lower support frame and the upper support frame of this utility model.

[0023] Figure 2 This is a diagram showing the installation sequence of the target plate part of this utility model.

[0024] Figure 3 This is a diagram of the device when the cavity is not provided.

[0025] Figure 4 This is a half-sectional view of the target plate section when the present invention is not equipped with a cavity.

[0026] Figure 5 This is a diagram showing the installation process of the lower cavity box and lower flange of this utility model.

[0027] Figure 6 This is a diagram of the device when only the lower cavity box is provided.

[0028] Figure 7 This is a half-sectional view of the target plate portion when the present invention is equipped only with the lower cavity box.

[0029] Figure 8 This is a diagram of the device when only the upper cavity box is provided.

[0030] Figure 9 This is a half-sectional view of the target plate section when the present invention is only equipped with the upper cavity box.

[0031] Figure 10 This is a diagram of the device when the present invention is equipped with both upper and lower cavity boxes.

[0032] Figure 11 This is a half-sectional view of the target plate section when the present invention is equipped with both upper and lower cavity boxes.

[0033] In the diagram: 1. Rectangular base plate; 2. Supporting bottom column; 3. Supporting top column; 4. Rectangular top frame; 5. Upper flange; 6. Upper clamping plate; 7. Ice target plate; 8. Lower clamping plate; 9. Lower flange; 10. Lower cavity box; 11. Upper cavity box; 12. Counterweight; 13. Height adjustment knob; 14. Connecting screws. Detailed Implementation

[0034] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0039] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0040] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0041] like Figure 1-11 As shown, this utility model provides a multi-media testing device for ice structures, including a lower support frame, an upper support frame connected above the lower support frame, and a target plate connected above the upper support frame;

[0042] The supporting lower frame includes a rectangular base plate 1, and the four corners of the upper surface of the rectangular base plate 1 are respectively connected to the lower part of a supporting base column 2. The upper part of the supporting base column 2 is nested with the lower part of the supporting top column 3.

[0043] The supporting frame includes a hollow rectangular top frame 4, and the four corners of the lower surface of the rectangular top frame 4 are respectively connected to the upper part of a supporting top column 3. Threaded holes are opened on the upper surface of the rectangular top frame 4.

[0044] When the cavity is not provided, the target plate includes an upper flange 5, an upper clamping plate 6, an ice target plate 7, a lower clamping plate 8, and a lower flange 9 arranged sequentially from top to bottom. The connecting screw 14 passes through the connecting holes on the upper flange 5, the upper clamping plate 6, the lower clamping plate 8, and the lower flange 9 sequentially from top to bottom and is connected to the threaded hole on the upper surface of the rectangular top frame 4. The upper flange 5, the upper clamping plate 6, the lower clamping plate 8, and the lower flange 9 are hollow rectangular frames.

[0045] When only the lower cavity box is equipped, the target plate part further includes: a lower cavity box 10 is provided below the lower clamping plate 8, the lower cavity box 10 contains a medium, the lower cavity box 10 is a hollow cuboid structure with an open top, the lower cavity box 10 is located between the lower clamping plate 8 and the lower flange 9, the edge of the opening surface of the lower cavity box 10 is provided with an outer edge, the inner ring of the lower flange 9 is provided with a groove, and the outer edge of the lower cavity box 10 matches the groove of the lower flange 9.

[0046] When only the upper cavity box is equipped, the target plate part further includes: an upper cavity box 11 is provided above the upper clamping plate 6, the upper cavity box 11 contains a medium, the upper cavity box 11 is a hollow cuboid structure with an open bottom, the edge of the opening surface of the upper cavity box 11 is provided with an outer edge, the inner ring of the upper flange 5 is provided with an upward groove, and the outer edge of the upper cavity box 11 matches the groove of the upper flange 5.

[0047] When both upper and lower cavity boxes are equipped, the target plate part further includes: a lower cavity box 10 is provided below the lower clamping plate 8, the lower cavity box 10 contains a medium, the lower cavity box 10 is a hollow cuboid structure with an open top, the lower cavity box 10 is located between the lower support frame and the upper support frame, the edge of the opening surface of the lower cavity box 10 is provided with an outer edge, the inner ring of the lower flange 9 is provided with a groove, and the outer edge of the lower cavity box 10 matches the groove of the lower flange 9.

[0048] An upper cavity box 11 is provided above the upper clamping plate 6. A medium is provided inside the upper cavity box 11. The upper cavity box 11 is a hollow cuboid structure with an open bottom. An outer edge is provided on the edge of the opening surface of the upper cavity box 11. A groove is provided on the inner ring of the upper flange 5. The outer edge of the upper cavity box 11 matches the groove of the upper flange 5.

[0049] The experimental apparatus of this utility model is as follows:

[0050] This device mainly consists of three parts: First, the main structure, which comprises a supporting frame, counterweights, and a protective layer. Second, the target plate fixing part, which consists of flanges, perforated clamping plates, and a brittle target plate. The flanges and clamping plates have an odd number of holes (five or more) on each side, depending on the specific dimensions of the test apparatus. Multiple sets of the target plate fixing part can be manufactured for quick installation during multiple tests, shortening test intervals and improving test efficiency. The perforation size and thickness of the clamping plates are determined based on the properties of the brittle material being tested. Third, the cavity part, which consists of a cavity with an outer edge and a flange with a groove. The cavity size can be adjusted according to the specific test conditions. To facilitate observation and recording of the entire test process, the flanges, clamping plates, and cavity are all made of transparent acrylic material.

[0051] The method of using this utility model is as follows:

[0052] (1) Test environment:

[0053] Choose a suitable test environment based on the brittle target plate being tested. The following example uses an ice structure. If the brittle target plate is ice, the test needs to be conducted in a low-temperature environment such as a cryogenic laboratory or ice chamber. Depending on the specific ice preparation materials or methods, the ambient temperature can be adjusted appropriately to ensure the ice structure does not melt for as long as possible, maintaining its structural shape and preventing structural strength loss or fixation failure. If the test involves a water medium, the temperature conditions need to be more stringent, requiring the temperature to be maintained near 0 degrees Celsius to prevent the water from freezing. The entire test setup needs to be kept in a low-temperature environment for at least half an hour to avoid unnecessary heat transfer during the experiment. If the low-temperature test conditions cannot be met, the temperature difference between the components or medium in direct contact with the ice structure and the ice structure must be minimized. Otherwise, the ice structure will experience cracks and damage due to the temperature difference, especially with highly penetrating fluids such as water. If other brittle materials requiring special test conditions are used as the target plate, please set up the test environment accordingly and ensure that other test equipment is installed before installing this test setup to reduce the target plate's exposure time to unsuitable environmental conditions, which could affect the test results.

[0054] (2) Preparations before installation:

[0055] The installation sequence of the test apparatus is crucial to ensuring the smooth conduct of the test. The installation order is determined based on the specific layout of the test apparatus and the test environment: whether to assemble the test apparatus outside the test environment and then move it into the environment, or to assemble the apparatus directly in the test environment, prioritizing minimizing the impact of the installation process on the brittle target plate. Finally, based on the media arrangement required for the test, it is decided whether to add a cavity behind the target plate. The multi-media setups corresponding to different cavity arrangements are as follows: (a) No cavity: With the brittle target plate as the horizontal plane, the upper part is media 1, the lower part is media 2, and the brittle target plate is media 3, supporting a maximum of 3 media combinations; (b) Only upper / lower cavities: Based on (a), media 4 is added within the upper / lower cavities, supporting a maximum of 4 media combinations; (c) Both upper and lower cavities: Based on (a), media 4 is added within the upper cavity and media 5 within the lower cavity, supporting a maximum of 5 media combinations.

[0056] (3) Assemble the main structural components:

[0057] Figure 1 The main structure of the experimental setup is shown. The supporting frame is a rectangular structure, consisting of a base and four retractable legs. These legs are a combination of upper support columns, top support columns, and height adjustment knobs. Eight triangular structures are installed between the legs and the base to ensure structural stability. The top surface of the upper support frame has threaded holes at corresponding positions for tightening screws to secure the target plate. A scale is installed on the upper side of the retractable legs, marking the vertical distance between the target plate and the bottom of the experimental setup. The target plate height is adjusted according to the specific experimental conditions, ensuring that the scales on all four legs are identical to guarantee the target plate is level with the base. Then, the four knobs are tightened to secure the legs. Counterweights are evenly placed on the base to lower the center of gravity and stabilize the device, preventing the experimental setup from tipping over and causing injury due to violent responses during the experiment. If the experimental setup is placed in a high-density medium, the counterweights can counteract the buoyancy of the setup. With a large-volume cavity, more and heavier counterweights are required. If the test requires an excessively large load, has a high risk factor, and poses a threat to personal safety and the main structure of the test equipment, such as a projectile penetration test or an explosive ice-breaking test, then a protective layer needs to be placed at the bottom or other appropriate locations to buffer the impact load or explosive load and avoid loss of life and property.

[0058] (4) Assemble the target plate fixing part (without cavity):

[0059] First, place the standard lower flange 4 above the support frame and align it with the hole. Then, from bottom to top, insert the lower clamping plate 5, the ice target plate structure 6, the upper clamping plate with holes 7, and the standard upper flange 8. Since there is no cavity, the upper and lower flanges can be standard flanges without grooves. Figure 2The installation sequence of the target plate end is demonstrated. Next, select screws of appropriate length according to the thickness of the ice structure. First, insert the screws into the holes at the four corners and slowly tighten them. During this process, use a socket wrench to manually tighten them; do not use an electric wrench to avoid violent vibration that could damage the brittle target plate. Ensure that the upper and lower clamping plates are in full contact with the ice structure to meet the boundary conditions, while also avoiding over-tightening to prevent crushing damage to the ice structure. Finally, slowly tighten the remaining screws in the same manner, ensuring that the target plate remains horizontal. Figure 3 This is a structural diagram of a test apparatus without a cavity. Figure 4 A half-sectional view of the test apparatus without a cavity.

[0060] (5) Assemble the target plate fixing part (equipped with a cavity):

[0061] First, the required multi-media arrangement for the experiment determines whether a lower cavity, upper cavity, or both cavities are needed. The size of the cavity is determined by the specific experimental conditions. Before the experiment, the cavity is filled with the required media. The cavity is a rectangular container with one open side. The edge of the open side has a certain width of outer rim, which is used with a flange with a groove. The outer rim dimension is the same as the flange groove dimension, allowing the outer rim of the cavity to be perfectly embedded into the flange groove, thus fixing the cavity. A rubber gasket is attached to the groove to fill the contact gap and prevent media penetration. The width of the outer rim can be determined according to the mass of the media filled in the cavity, ensuring that the outer rim has sufficient strength to fix the cavity. Taking the lower cavity and lower flange as an example, the specific design details are as follows: Figure 5 As shown. The target plate end installation sequence for different cavity arrangement methods is as follows: (a) Only equipped with the lower cavity: from bottom to top, the sequence is: lower groove flange, lower cavity, lower perforated clamping plate, ice target plate structure, upper perforated clamping plate and ordinary upper flange. Figure 6 and Figure 7 (a) Structural diagram and half-sectional view of the test apparatus; (b) Equipped only with the upper cavity: from bottom to top, the components are: lower ordinary flange, lower perforated clamping plate, ice target plate structure, upper perforated clamping plate, upper cavity and grooved upper flange. Figure 8 and Figure 9 (c) The test apparatus is equipped with upper and lower cavities: from bottom to top, they are a lower grooved flange, a lower cavity, a lower perforated clamping plate, an ice target plate structure, an upper perforated clamping plate, an upper cavity, and a grooved upper flange. Figure 10 and Figure 11 The diagram shows the structure of the test apparatus and a half-sectional view of the test apparatus. Then, tighten the screws as described in (4) to fix the target plate portion when the cavity is provided. Steps (4) or (5) can be repeated, and multiple sets of target plates can be prepared to reduce the time spent changing target plates and improve test efficiency when conducting multiple sets of tests.

[0062] (6) Conduct experiments:

[0063] The medium in the test environment is prepared in advance. The test device is slowly placed into the test environment / slowly adjusted to its position within the test environment. The medium in the test environment is adjusted, and all media are allowed to stabilize. Once the corresponding cross-medium test conditions are met, the test is prepared to commence. A series of response tests of ice structures under multi-medium conditions are conducted in coordination with other test equipment systems, including load input systems (projectile launch systems or detonator systems, etc.), data acquisition systems (strain gauges, sensors, or high-speed cameras, etc.), and lighting systems.

[0064] (7) Replacement of the target plate end during multiple tests:

[0065] After a set of tests, if the ice structure and cavity are damaged, the test environment needs to be cleaned and all media replaced. First, slowly loosen the screws at the four corners, then the other screws, remove the target plate end, and take photos / scans of the ice target plate structure for record-keeping. If the bottom support structure moves due to severe disturbance during the test or the legs are misaligned, the support structure also needs to be adjusted to ensure consistency across multiple sets of tests. Quickly install the pre-prepared target plate end, prepare the other test environment, media, and test equipment, and begin the next set of tests.

[0066] (8) Disassembly of the test apparatus:

[0067] First, disassemble the target plate fixing part, then loosen the height adjustment knob, retract the support legs of the bottom support structure, and finally store the test equipment back in the warehouse.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-medium testing device for ice structures, characterized by, The support lower frame is connected with a support upper frame, and the support upper frame is connected with a target plate part; The support lower frame comprises a rectangular bottom plate (1), four corners of the upper surface of the rectangular bottom plate (1) are connected with the lower parts of four support bottom columns (2) respectively, and the upper parts of the support bottom columns (2) are nested with the lower parts of support top columns (3). The support upper frame comprises a hollow rectangular top frame (4), four corners of the lower surface of the rectangular top frame (4) are connected with the upper parts of the support top columns (3) respectively, and the upper surface of the rectangular top frame (4) is provided with threaded holes. The target plate part comprises an upper flange (5), an upper clamping plate (6), an ice target plate (7), a lower clamping plate (8) and a lower flange (9) arranged from top to bottom in sequence, and connecting screws (14) are connected with the threaded holes in the upper surface of the rectangular top frame (4) after penetrating the connecting holes in the upper flange (5), the upper clamping plate (6), the lower clamping plate (8) and the lower flange (9) from top to bottom in sequence, and the upper flange (5), the upper clamping plate (6), the lower clamping plate (8) and the lower flange (9) are hollow rectangular frames.

2. The multi-media testing device for ice structures of claim 1, wherein, A lower cavity box (10) is arranged below the lower clamping plate (8), a medium is arranged in the lower cavity box (10), the lower cavity box (10) is a hollow cuboid structure with an open top, the lower cavity box (10) is located between the lower clamping plate (8) and the lower flange (9), an outer edge is arranged on the edge of the opening surface of the lower cavity box (10), a groove is arranged in the inner ring of the lower flange (9), and the outer edge of the lower cavity box (10) is matched with the groove of the lower flange (9).

3. The multi-media testing apparatus for ice structures of claim 1, wherein, An upper cavity box (11) is arranged above the upper clamping plate (6), a medium is arranged in the upper cavity box (11), the upper cavity box (11) is a hollow cuboid structure with an open bottom, the upper cavity box (11) is located between the upper flange (5) and the upper clamping plate (6), an outer edge is arranged on the edge of the opening surface of the upper cavity box (11), a groove is arranged in the inner ring of the upper flange (5) upwards, and the outer edge of the upper cavity box (11) is matched with the groove of the upper flange (5).

4. The multi-media testing apparatus for ice structures of claim 1, wherein, A lower cavity box (10) is arranged below the lower clamping plate (8), a medium is arranged in the lower cavity box (10), the lower cavity box (10) is a hollow cuboid structure with an open top, the lower cavity box (10) is located between the support lower frame and the support upper frame, an outer edge is arranged on the edge of the opening surface of the lower cavity box (10), a groove is arranged in the inner ring of the lower flange (9), and the outer edge of the lower cavity box (10) is matched with the groove of the lower flange (9). An upper cavity box (11) is arranged above the upper clamping plate (6), a medium is arranged in the upper cavity box (11), the upper cavity box (11) is a hollow cuboid structure with an open bottom, an outer edge is arranged on the edge of the opening surface of the upper cavity box (11), a groove is arranged in the inner ring of the upper flange (5) upwards, and the outer edge of the upper cavity box (11) is matched with the groove of the upper flange (5).

5. A multi-media testing device for ice structures according to claim 2 or 3 or 4, characterized in that, The groove is provided with a rubber ring.

6. The multi-media testing apparatus for ice structures of claim 1, wherein, A counterweight (12) is arranged on the bottom plate between the two support bottom columns (2).

7. The multi-media testing apparatus for ice structures of claim 1, wherein, The support bottom column (2) and the bottom plate are provided with a triangular reinforcing structure.

8. The multi-media testing apparatus for ice structures of claim 1, wherein, The support top column (3) is provided with a scale and a plurality of height adjusting holes, and the support bottom column (2) is provided with a height adjusting knob (13) and a screw hole.

Images