Clamping and fixing device for loose geological sample CT scanning

Abstract

The utility model provides a clamping and fixing device for CT scanning of a loose geological sample. The clamping and fixing device comprises a base and a containing assembly arranged on the base. The accommodating assembly is provided with an accommodating cavity; the sample tank is arranged in the accommodating cavity; the sample tank comprises a tank body, a flexible part and an inflation assembly, an opening is formed in the top of the tank body, the edge of the flexible part is connected with the inner side of the top of the tank body in a sealed mode, a space defined by the flexible part and the tank body is communicated with the inflation assembly, and the flexible part can form a sample containing space used for containing a tested sample. According to the method, the damage to the loose sample of the salt lake can be reduced in the CT scanning process, and the CT scanning data quality is improved.

Description

Technical Field

[0001] This application relates to the field of geological sample testing technology, and in particular to a clamping and fixing device for CT scanning of loose geological samples. Background Technology

[0002] The physical principle of CT technology is based on the interaction between X-rays and matter, specifically the difference in attenuation of X-rays as they pass through different media, which is then used by computers to reconstruct the three-dimensional structure of an object. In the geological field, industrial CT technology can be used to measure and analyze the porosity of rock core samples, and it is frequently applied to measuring the porosity of oil and gas reservoirs.

[0003] However, the applicant discovered the following problems when scanning loose geological samples of rock salt due to the lack of dedicated clamps: If the instrument's built-in tray is used, the sample needs to rotate 360° during scanning, posing a risk of detachment and contamination of the instrument's internal structure. Sample rotation during scanning may alter the structure of the loose geological sample (potentially causing breakage), reducing scan quality and accuracy. Using common clamps, the clamp's fixing components apply pressure to secure the sample; however, due to the loose texture of the salt lake samples, these components can easily cause breakage, affecting the accuracy of CT scans and subsequent analysis. Furthermore, samples require a sealed, light-protected environment during testing and storage to prevent changes in moisture content, which could alter the pore structure and reduce the consistency of multiple test results. Utility Model Content

[0004] In view of the above analysis, this application aims to provide a clamping and fixing device for CT scanning of loose geological samples to solve at least one of the above-mentioned problems existing in the prior art.

[0005] The purpose of this application is mainly achieved through the following technical solutions:

[0006] A clamping and fixing device for CT scanning of loose geological samples includes a base and a receiving component disposed on the base; the receiving component has a receiving cavity; a sample container is disposed in the receiving cavity; the sample container includes a container body, a flexible part and an inflation component, the top of the container body has an opening, the edge of the flexible part is sealed to the inner side of the top of the container body, the space enclosed by the flexible part and the container body is in communication with the inflation component, and the flexible part can form a sample holding space for accommodating the sample to be tested.

[0007] Furthermore, the flexible part is made of an elastic material.

[0008] Furthermore, the middle part of the flexible section is connected to the bottom of the tank, and the sample holding space is an inverted cone-shaped space.

[0009] Furthermore, the sample container includes a first state in which the flexible part expands toward the inner surface away from the container body and compresses and fixes the sample to be tested.

[0010] Furthermore, the inflation assembly includes an inflation port and an inflation valve. The inflation port penetrates the side wall of the tank, and the inflation valve is located at the end of the inflation port on the outer surface of the tank.

[0011] Furthermore, the tank body includes a side wall portion, a bottom portion, and a tank body locking portion, with the bottom portion being movably disposed relative to the side wall portion along the axis of the tank body; the tank body locking portion is disposed at the bottom portion and is movably disposed along the radial direction of the tank body.

[0012] Furthermore, the interior of the receiving component is provided with a fixing part arranged radially inward along the receiving component, and the fixing part is telescopically oriented.

[0013] Furthermore, the housing component includes a housing portion, a top cover, and a sealing portion, with the housing portion and the top cover being detachably connected; the sealing portion includes a connecting portion and an elastic sealing strip, with the connecting portion being fixedly connected to the housing portion, and the elastic sealing strip being connected to the connecting portion and capable of covering the connection between the top cover and the housing portion.

[0014] Furthermore, the base and housing assembly are detachably connected.

[0015] Furthermore, rubber microparticles adhere to the side of the flexible part that is away from the inner surface of the tank.

[0016] Compared with existing technologies, the clamping and fixing device for CT scanning of loose geological samples provided in this application places the sample container within the receiving cavity of the receiving component. The inner side of the top of the sample container body is sealed to the edge of the flexible part, and the middle part of the flexible part is connected to the bottom of the container body, forming a gas-accommodating chamber between the flexible part and the container body. When the chamber is not inflated, the flexible part is in an unstretched state and is inverted conical in shape. When the sample to be tested is placed in the flexible part, air can be inflated into the chamber through the inflation component, causing the flexible part to expand inward and gradually cover the sample until the expanded flexible part can fix the sample. When it is necessary to test or remove the sample, the air in the chamber can be appropriately expelled, causing the flexible part to contract appropriately, exposing at least a portion of the sample to facilitate testing or removal. Because the flexible part gradually covers and fixes the sample through expansion, damage to loose salt lake samples can be reduced. Scanning can be performed while maintaining the stability of the loose salt lake samples and preventing easy changes in their morphology and structure, thus improving the quality of CT scan data.

[0017] In this application, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this application will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing this application. The objectives and other advantages of this application can be realized and obtained from the specific points highlighted in the description and accompanying drawings. Attached Figure Description

[0018] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Throughout the drawings, the same reference numerals denote the same parts.

[0019] Figure 1 This is a schematic diagram of a clamping and fixing device for CT scanning of loose geological samples according to an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the structure of the receiving component of the clamping and fixing device for CT scanning of loose geological samples according to an embodiment of this application, after it is opened.

[0021] Figure 3 This is a schematic diagram of the interior of a sample container of a clamping and fixing device for CT scanning of loose geological samples, as described in an embodiment of this application.

[0022] Figure 4 This is an internal schematic diagram of the sample container of the clamping and fixing device for CT scanning of loose geological samples according to an embodiment of this application, when it is in the first state.

[0023] Figure 5 This is a schematic diagram showing the connection between the receiving component and the base of a clamping and fixing device for CT scanning of loose geological samples according to an embodiment of this application.

[0024] Figure 6 This is another internal schematic diagram of the sample container of the clamping and fixing device for CT scanning of loose geological samples according to an embodiment of this application.

[0025] Figure 7 This is a bottom view of the receiving component of a clamping and fixing device for CT scanning of loose geological samples according to an embodiment of this application.

[0026] Figure 8 This is a top view of the base of a clamping and fixing device for CT scanning of loose geological samples according to an embodiment of this application.

[0027] Figure 9 This is a schematic diagram of the receiving component of a clamping and fixing device for CT scanning of loose geological samples according to an embodiment of this application.

[0028] Figure 10This is a schematic diagram of the structure of the receiving component of the clamping and fixing device for CT scanning of loose geological samples in an embodiment of this application, when the encapsulation tape is not encapsulated.

[0029] Figure label:

[0030] 1. Base; 11. Second connecting part;

[0031] 2. Receiving component; 21. Fixing part; 22. First connecting part; 23. Receiving part; 24. Top cover; 25. Encapsulation tape;

[0032] 3. Sample container; 31. Container body; 311. Side wall; 312. Bottom; 313. Container locking part; 32. Flexible part; 33. Inflation assembly; 331. Inflation hole; 332. Inflation valve;

[0033] 4. Connecting components; 41. Elastic elements; 42. Supporting components;

[0034] 5. The sample to be tested;

[0035] A. First direction. Detailed Implementation

[0036] The preferred embodiments of this application are described in detail below with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of this application to illustrate the principles of this application, but are not intended to limit the scope of this application.

[0037] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] Throughout the text, the terms “top,” “bottom,” “above,” “below,” and “on top” refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates within the device. It is understood that the device is multifunctional and independent of its spatial orientation.

[0039] A specific embodiment of this utility model discloses a clamping and fixing device for CT scanning of loose geological samples, which can be simply referred to as a "clamping and fixing device". Figures 1 to 5As shown, the device includes a base 1, a receiving component 2, and a sample container 3. The base 1 is rotatably disposed about an axis parallel to a first direction A. The receiving component 2 is disposed on one side of the base 1 and is hollow, having a receiving cavity. The sample container 3 is placed inside the receiving cavity of the receiving component 2. The sample container 3 includes a container body 31, a flexible part 32, and an inflation component 33. The top of the container body 31 has an opening, and the edge of the flexible part 32 is sealed to the inner side of the top of the container body 31. The space enclosed by the flexible part 32 and the container body 31 is connected to the inflation component 33. The flexible part 32 can form a sample holding space for accommodating the sample to be tested.

[0040] In one alternative embodiment, the middle part of the flexible part 32 is connected to the bottom of the container 31 so that the flexible part 32 is inverted conical, that is, the sample holding space is an inverted conical space, and the inverted conical space is used to accommodate the sample 5 to be tested.

[0041] It should be noted that the clamping and fixing device of this application embodiment should have an axis, and the whole can rotate around the axis. For ease of explanation, the extension direction of the axis is the first direction A. If the clamping and fixing device of this application embodiment is placed on a horizontal plane, then the first direction A is the vertical direction.

[0042] The base 1 can be a body of revolution, such as a disk, and the axis of the body of revolution coincides with the axis of the clamping and fixing device of this embodiment, so that the base 1 can rotate around the axis and the rotation process is smoother. When the receiving component 2 is connected to the base 1, the axis of the receiving component 2 also coincides with the axis of the clamping and fixing device of this embodiment. The outer surface of the receiving component 2 can also be a body of revolution, such as a cylinder.

[0043] The sample container 3 is used to hold the sample 5 to be tested and is detachably disposed inside the receiving assembly 2. The container body 31 of the sample container 3 can be a body of revolution, such as a cylinder. The flexible part 32 can be a circular flexible film, and the edge of the flexible part 32 is sealed to the inner side of the top of the container body 31, so that a sealed cavity is formed between the flexible part 32 and the container body 31. The middle part of the flexible part 32 is connected to the bottom of the container body 31. When the flexible part 32 is in an unextended state, since the middle part of the flexible part 32 is connected to the bottom of the container body 31 and the edge of the flexible part 32 is connected to the top of the container body 31, the flexible part 32 is in the shape of an inverted cone. The inverted cone-shaped space formed by the flexible part 32 can hold the sample 5 to be tested.

[0044] When holding the sample 5 to be tested, some air can be appropriately extracted from the cavity between the flexible part 32 and the tank 31 through the inflation component 33, causing the cavity to contract appropriately and the flexible part 32 to extend, thereby increasing the space inside the flexible part 32 to hold the sample 5 to be tested. After the sample 5 to be tested is placed inside the flexible part 32, gas is injected into the cavity between the flexible part 32 and the tank 31 through the inflation component 33, causing the cavity to expand, the flexible part 32 to extend and contact the sample 5 to be tested, until the extended flexible part 32 covers the sample 5 to be tested, and then the inflation component 33 is closed. At this time, since the middle and edges of the flexible part 32 are connected to the tank 31, the flexible part 32, whose shape no longer changes, is fixed by the tank 31, and the sample to be tested, which is covered in the flexible part 32, is also fixed to the tank 31, thus realizing the clamping and fixing of the sample 5 to be tested by the clamping and fixing device of this embodiment. Because the flexible part 32 has good flexibility, its surface can fit more closely to the surface of the sample being tested, thereby increasing the contact area between the flexible part 32 and the sample being tested 5, thus reducing the external force per unit area of ​​the sample being tested 5, reducing the risk of damage to the sample being tested 5, and improving the quality of CT scan data while keeping the loose salt lake sample stable and not easily changing its morphology and structure.

[0045] Further reading Figure 3 and Figure 4 The flexible part 32 is made of an elastic material and has elasticity; the sample container 3 includes a first state in which the flexible part 32 expands toward the inner surface away from the container body 31 and squeezes and fixes the sample 5 to be tested.

[0046] Because the flexible part 32 is elastic, it can expand and extend to cover the sample 5 under test and conform to the surface of the sample 5 under test to a greater extent, thereby reducing the pressure on the sample 5 per unit area. For example, the elongation of the flexible part 32 can be greater than 50%, so that the flexible part 32 has good extensibility. The first state of the sample container 3 means that the sample 5 under test has been placed in the sample container 3. At this time, the flexible part 32 expands in the direction away from the inner surface of the container 31 and presses and fixes the sample 5 under test. When the sample container 3 is in the first state, the sample container 3 can be installed in the receiving assembly 2, or the sample 5 under test can be transported or stored by means of transporting or storing the sample container 3.

[0047] Furthermore, when the sample container 3 is in the first state, the sample 5 to be tested is suspended and fixed inside the sample container 3 and does not contact the container body 31. Since the flexible part 32 has good elasticity, the flexible part 32 can serve as a buffer structure for the sample 5 to be tested. During the transportation of the sample container 3, the risk of the sample 5 to be tested colliding with the container body 31 can be reduced, further protecting the sample 5 to be tested.

[0048] Furthermore, rubber microparticles are adhered to the side of the flexible part 32 facing away from the inner surface of the tank 31. During the process of inflating the space between the flexible part 32 and the tank 31, causing the flexible part 32 to gradually enclose the sample 5 under test, the flexible part 32 and the sample 5 are not directly fixed together. Instead, gravity keeps the sample 5 within the inverted cone shape formed by the flexible part 32. Therefore, a slight misalignment occurs between the flexible part 32 and the sample 5. The rubber microparticles on the inner side of the flexible part 32 increase the coefficient of friction, thereby increasing the friction between the sample 5 and the inner side of the flexible part 32, and thus reducing the risk of the sample 5 detaching from the flexible part 32.

[0049] Further reading Figure 3 and Figure 4 The inflation assembly 33 includes an inflation hole 331 and an inflation valve 332. The inflation hole 331 penetrates the side wall of the tank body 31, and the inflation valve 332 is located at the end of the inflation hole 331 on the outer surface of the tank body 31.

[0050] The inflation port 331 of the inflation assembly 33 penetrates the tank body 31, allowing the cavity formed between the flexible part 32 and the tank body 31 to communicate with the outside of the tank body 31. Air can enter or exit the cavity formed between the flexible part 32 and the tank body 31 through the inflation port 331. An inflation valve 332 is located on the outer surface of the tank body 31 and is used to open or close the inflation port 331. When the inflation port 331 is closed, the air level in the cavity formed between the flexible part 32 and the tank body 31 no longer increases or decreases, thus preventing the shape of the flexible part 32 from changing. When the flexible part 32 has covered the sample 5 to be tested, the sample 5 can be fixed inside the sample tank 3. It is understood that the inflation valve 332 can be connected to an air pump to pump air into or extract air from the cavity formed between the flexible part 32 and the tank body 31.

[0051] Further, please refer to Figure 6The canister 31 includes a sidewall portion 311, a bottom portion 312, and a canister locking portion 313. The bottom portion 312 is movably disposed relative to the sidewall portion 311 along the axis of the canister 31. The canister locking portion 313 is disposed on the bottom portion 312 and is movably disposed radially along the canister 31. Since the sidewall portion 311 and the bottom portion 312 of the canister 31 are movably disposed along the axial direction of the clamping and fixing device of this embodiment, the bottom portion 312 can be moved toward the top of the canister 31. Since the middle portion of the flexible portion 32 is connected to the bottom portion 312, the flexible portion 32, together with the sample 5 covered by the flexible portion 32, can be moved toward the top of the canister 31 to expose part of the sample 5 or to remove the sample 5. It is understood that the sidewall portion 311 and the bottom portion 312 are sealed together to reduce the risk of air leakage in the cavity between the canister 31 and the flexible portion 32.

[0052] The can locking part 313 is used to fix the relative position of the side wall part 311 and the bottom 312. The can locking part 313 is provided on the bottom side of the bottom 312. For example, the can locking part 313 can be in the form of a bolt. By unscrewing the bolt, the bolt shank abuts against the inside of the side wall part 311, thereby fixing the relative position of the side wall part 311 and the bottom 312.

[0053] Further reading Figure 6 The interior of the receiving component 2 is provided with a fixing part 21 arranged radially inward along the receiving component 2, and the fixing part 21 is telescopically oriented.

[0054] To facilitate easier placement and removal of samples from the receiving assembly 2, the outer diameter of the sample container 3 should be smaller than the inner diameter of the receiving assembly 2. The fixing part 21 secures the relative position of the sample container 3 and the receiving assembly 2, ensuring that the axis of the sample container 3 coincides with the axis of the receiving assembly 2, thus aligning the axis of the sample container 3 with the axis of the clamping and fixing device of this embodiment. Exemplarily, the fixing part 21 can be in the form of a bolt, with the screw penetrating the side wall of the receiving assembly 2 and abutting against the outer wall of the sample container 3. The portion of the screw penetrating the receiving assembly 2 can be lengthened or shortened by rotating the fixing part 21.

[0055] In one alternative embodiment, the base and the receiving component are detachably connected. Specifically, the base 1 and the receiving component 2 are detachably connected via a connecting component 4, which is disposed within the receiving component 2.

[0056] Further reading Figure 5The connecting component 4 includes an elastic element 41 and a support element 42. The support element 42 is disposed on the base 1, and the support element 42 and the base 1 are connected by the elastic element 41. The bottom of the receiving component 2 is provided with a first connecting part 22, and the base 1 is provided with a second connecting part 11. The first connecting part 22 and the second connecting part 11 are detachably connected.

[0057] The base 1 and the support member 42 of the connecting assembly 4 are connected by an elastic member 41. When connecting the receiving assembly 2 and the base 1, the support member 42 abuts against the bottom of the receiving assembly 2, and the elastic member 41 provides stable support for the bottom of the receiving assembly 2. When connecting the receiving assembly 2 and the base 1, the first connecting part 22 of the receiving assembly 2 and the second connecting part 11 of the base 1 are detachably connected. At this time, the elastic member 41 is in a compressed state, which can provide elastic support for the receiving assembly 2. When separating the receiving assembly 2 and the base 1, the connection between the first connecting part 22 and the second connecting part 11 is released. Under the elastic thrust of the elastic member 41, the receiving assembly 2 and the base 1 are more easily separated.

[0058] Further, please refer to Figure 7 and Figure 8 The first connecting portion 22 has at least two pairs, and the distances from the two first connecting portions 22 in each pair to the axis of the base 1 are equal, while the distances from the two first connecting portions 22 in at least two pairs to the axis of the base 1 are not equal; the number of second connecting portions 11 is equal to the number of first connecting portions 22. Taking the arrangement of two pairs of first connecting portions 22 as an example, the distances from the two first connecting portions 22 in the first pair to the axis of the base 1 are both a first distance, and the distances from the two first connecting portions 22 in the second pair to the axis of the base 1 are both a second distance, and the first distance and the second distance are not equal.

[0059] It is understood that the first connecting part 22 and the second connecting part 11 are correspondingly arranged so that the first connecting part 22 and the second connecting part 11 can be connected one-to-one. In order to make the connection between the receiving component 2 and the base 1 more stable, the first connecting parts 22 are arranged in pairs. The axis of the clamping and fixing device of this embodiment passes through the center of the line connecting each pair of first connecting parts 22, so that the force exerted by each pair of first connecting parts 22 on the base 1 is more uniform along the circumference of the clamping and fixing device of this embodiment. The distances from at least two pairs of first connecting parts 22 to the axis of the base 1 are not equal, so that the force exerted by at least two pairs of first connecting parts 22 on the base 1 is more uniform along the radial direction of the clamping and fixing device of this embodiment. Since the first connecting part 22 and the second connecting part 11 can be connected one-to-one, the arrangement of the second connecting part 11 corresponds to that of the first connecting part 22, and will not be described again here. Exemplarily, the first connecting part 22 and the second connecting part 11 can be connected in the form of a slot and a buckle, which is simple in structure and convenient for processing and manufacturing.

[0060] In one alternative implementation, such as Figure 9 and Figure 10 As shown, the housing component 2 includes a housing portion 23, a top cover 24, and a packaging portion 25. The housing portion 23 and the top cover 24 are detachably connected. The packaging portion 25 includes a connecting portion and an elastic packaging strip. The connecting portion is fixedly connected to the housing portion 23, and the elastic packaging strip is connected to the connecting portion and can cover the connection between the top cover 24 and the housing portion 23.

[0061] The receiving portion 23 of the receiving component 2 can be cylindrical. The top cover 24 is detachably connected to the receiving portion 23, forming a hollow receiving component 2. The internal cavity of the receiving component 2 is used to accommodate the sample container 3. The encapsulation portion 25 is used to seal the connection gap between the top cover 24 and the receiving portion 23, forming a sealed, light-proof space, reducing the entry of moisture into the receiving component 2, lowering the risk of moisture contamination of the sample 5, and ensuring that the moisture content of the sample 5 does not change. The connecting portion of the encapsulation portion 25 is connected to the receiving portion 23, and the elastic encapsulation strip is annular and connected to the connecting portion. After the top cover 24 is connected to the receiving portion 23, the elastic encapsulation strip can cover the connection gap between the top cover 24 and the receiving portion 23. At this time, the elastic encapsulation strip is in a stretched state and presses the connection gap between the top cover 24 and the receiving portion 23, achieving the purpose of sealing the connection gap between the top cover 24 and the receiving portion 23.

[0062] The method of using the clamping and fixing device for CT scanning of loose geological samples in this embodiment to clamp loose samples from salt lakes includes the following steps:

[0063] Sample 5 was obtained from the field at a salt lake. The outdoor sample was then transported indoors. Partial air was extracted from the cavity between the canister body 31 and the flexible part 32 of the sample container 3 using the inflation component 33, causing the cavity to contract while the flexible part 32 extended. Sample 5 was placed inside the flexible part 32, now positioned within the sample container 3. Air was then injected into the cavity between the canister body 31 and the flexible part 32 using the inflation component 33, causing the cavity to expand and the flexible part 32 to extend, gradually conforming to and enveloping the sample 5 until it completely covers it, thus completing the container's containment and fixation of the sample 5. The sample container 3 containing sample 5 was then installed inside the receiving component 2, and the receiving component 2 and base 1 were connected, securing the sample 5. A CT scan was then performed.

[0064] After scanning the sample 5, it can be removed. During removal, the receiving assembly 2 is first removed from the base 1, then the seal of the encapsulation part 25 at the connection between the receiving part 23 and the top cover 24 is released. The top cover 24 is then removed from the receiving part 23, and the sample container 3 containing the sample 5 is removed. Air is gradually extracted from the space between the body 31 and the flexible part 32 by the inflation assembly 33, causing the flexible part 32 to gradually contract, gradually exposing the sample 5 covered by the flexible part 32 until it is fully exposed. At this point, the bottom 312 of the container 31 can be moved, causing it to rise. The flexible part 32 and the sample 5 rise together until at least a portion of the sample 5 protrudes above the side wall 311, facilitating its removal. The removal process does not damage the sample 5, and the removed sample can be used for other analytical tests, achieving the reuse of loose samples from the salt lake.

[0065] Compared with existing technologies, the clamping and fixing device for CT scanning of loose geological samples provided in this application embodiment has a receiving component that is detachably connected to a base via a connecting component. The sample container can be placed inside the receiving component. The inner side of the top of the container is sealed to the edge of the flexible part, and the middle part of the flexible part is connected to the bottom of the container, forming a chamber that can contain gas. This reduces the risk of water vapor contamination of the sample and ensures that the moisture content of the sample does not change. When the chamber is not inflated, the flexible part is in an unstretched state and is inverted conical in shape. When the sample is placed in the flexible part, air can be inflated into the chamber through the inflation component, causing the flexible part to expand inward and gradually cover the sample until the expanded flexible part can fix the sample. When it is necessary to test or remove the sample, the air in the chamber can be appropriately expelled, causing the flexible part to contract appropriately, exposing at least a portion of the sample for testing or removal. In this embodiment, the flexible part gradually covers and fixes the sample under test by extending and expanding, which can reduce damage to the loose salt lake sample. The loose salt lake sample can be scanned while maintaining its stability and not easily changing its morphology and structure, thereby improving the quality of the data obtained by CT scan. The removed sample can also be used for other analytical tests, realizing the reuse of the loose salt lake sample.

[0066] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A clamping and fixing device for CT scanning of loose geological samples, characterized in that, The device includes a base and a receiving assembly disposed on the base; the receiving assembly has a receiving cavity; a sample container is disposed within the receiving cavity; the sample container includes a container body, a flexible part, and an inflation assembly, the top of the container body has an opening, the edge of the flexible part is sealed to the inner side of the top of the container body, the space enclosed by the flexible part and the container body is in communication with the inflation assembly, and the flexible part can form a sample holding space for accommodating the sample to be tested.

2. The clamping and fixing device for CT scanning of loose geological samples according to claim 1, characterized in that, The flexible part is made of an elastic material.

3. The clamping and fixing device for CT scanning of loose geological samples according to claim 2, characterized in that, The middle part of the flexible section is connected to the bottom of the container, and the sample holding space is an inverted cone-shaped space.

4. The clamping and fixing device for CT scanning of loose geological samples according to claim 3, characterized in that, The sample container includes a first state in which the flexible part expands toward the inner surface away from the container body and compresses and fixes the sample to be tested.

5. The clamping and fixing device for CT scanning of loose geological samples according to claim 4, characterized in that, The inflation assembly includes an inflation port and an inflation valve. The inflation port penetrates the side wall of the tank, and the inflation valve is located at the end of the inflation port on the outer surface of the tank.

6. The clamping and fixing device for CT scanning of loose geological samples according to claim 5, characterized in that, The tank includes a side wall, a bottom, and a tank locking part. The bottom is movably disposed relative to the side wall along the axis of the tank. The tank locking part is disposed at the bottom and is movably disposed along the radial direction of the tank.

7. The clamping and fixing device for CT scanning of loose geological samples according to claim 1, characterized in that, The housing component has a fixing part arranged radially inward along the housing component, and the fixing part is telescopically oriented.

8. The clamping and fixing device for CT scanning of loose geological samples according to claim 7, characterized in that, The receiving component includes a receiving part, a top cover, and a sealing part, wherein the receiving part and the top cover are detachably connected; the sealing part includes a connecting part and an elastic sealing strip, wherein the connecting part is fixedly connected to the receiving part, and the elastic sealing strip is connected to the connecting part and can cover the connection between the top cover and the receiving part.

9. The clamping and fixing device for CT scanning of loose geological samples according to any one of claims 1 to 8, characterized in that, The base is detachably connected to the housing component.

10. The clamping and fixing device for CT scanning of loose geological samples according to claim 9, characterized in that, Rubber particles adhere to the side of the flexible part that is away from the inner surface of the tank.

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