Rock core holder
By designing the non-uniform plug surface and sliding pull rod structure, the problem that existing core holders can only apply uniform loads is solved, and the uneven load application of core samples is achieved, simulating more realistic core load conditions and improving the The accuracy and reliability of the tests are carried out.
Patent Information
- Application Number
- CN202420934112.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing core holders can only apply uniform loads when simulating pressurization tests, and cannot simulate uneven loads, resulting in inaccurate test results.
A non-uniform plug surface is designed to apply uneven loads through the sliding of the first and second plug assembly and the action of the pull rod to simulate a more realistic pressurization test.
The non-uniform load application of core samples is achieved, and more realistic core load conditions are simulated, improving the accuracy and reliability of the test.
Smart Images
Figure CN222439267U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of core testing, in particular to a core clamp. Background Art
[0002] By clamping the core sample, various physical and chemical tests can be performed on it in the laboratory, including pressure tests to simulate the behavior of rocks under underground pressure conditions. These test results are crucial for work in fields such as oil exploration, geological research and rock engineering, and can help people evaluate rock mechanical properties, pore structure, permeability and other parameters to better understand the characteristics and behavior of underground rocks. The design and use of core holders are also very important to ensure the integrity and accuracy of core samples, because the data provided by these samples are of great significance for research and decision-making in the fields of geology and engineering.
[0003] However, the core holder currently has the following problems when in use: when the core holder simulates the sample, a plug is used to apply pressure, but the plug is currently usually in the shape of a single cylinder, which can only apply a uniform load but not an uneven load. Utility Model Content
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a core clamp, which applies uneven loads to the core clamping simulation test process by designing a non-uniform plug surface, and the simulation effect is more realistic.
[0005] The technical solution adopted by the utility model is as follows: the utility model provides a core clamp, comprising a base, a clamping sleeve is mounted on the base, and a first guide sleeve and a second guide sleeve are fixedly mounted on both sides of the clamping sleeve.
[0006] A first sleeve is fixedly disposed in the first guide sleeve, a second sleeve is fixedly disposed in the first sleeve, and a first plug assembly is slidably disposed in the second sleeve;
[0007] A third shaft sleeve is fixedly disposed in the second guide sleeve, and a second plug assembly is slidably disposed in the third shaft sleeve;
[0008] A first structure is installed outside the first plug assembly and the second plug assembly, and the first structure is fixedly arranged in the clamping sleeve;
[0009] A first fastening body is arranged between the first structure and the clamping sleeve, and is used for fastening the first structure and the clamping sleeve.
[0010] Furthermore, the clamping sleeve is threadedly fastened to the first guide sleeve, and the clamping sleeve is threadedly fastened to the second guide sleeve.
[0011] Furthermore, the first plug assembly includes a first plug installed in the second sleeve, a first draw rod is slidably provided in the first plug, and a first push plate is installed at one end of the first draw rod.
[0012] Furthermore, the second plug assembly includes a second plug installed in the third sleeve, the first plug is slidably provided with a second draw rod, and a second push plate is installed at one end of the second draw rod.
[0013] Furthermore, a first pressing body is fixedly provided on the first push plate, and a second pressing body is fixedly provided on the second push plate.
[0014] Furthermore, the cross-sectional shape of the first pressing body is triangular in design, and the cross-sectional shape of the second pressing body is triangular in design.
[0015] Furthermore, the first sleeve is threadedly fastened to the second sleeve, thereby making the fit more secure.
[0016] Furthermore, the second guide sleeve and the third shaft sleeve are in interference fit.
[0017] Furthermore, a first support plate is installed between the clamping sleeve and the base, for supporting the clamping sleeve to be fixed on the base.
[0018] The beneficial effects achieved by the utility model using the above structure are as follows: the core clamp provided by the present solution can apply a non-uniform load to the core sample by designing a non-uniform plug surface, thereby simulating a more realistic pressure test. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of the main structure of a core holder provided by the utility model;
[0020] Figure 2 A schematic diagram of the internal structure of a core holder provided by the utility model;
[0021] Figure 3 A main structural diagram of the first drawer rod provided by the utility model;
[0022] Figure 4 This is a main structural diagram of the second drawer rod provided by the utility model.
[0023] Among them, 1. base, 2. clamping sleeve, 3. first guide sleeve, 301. first sleeve, 302. second sleeve, 303. first plug assembly, 304. first pull rod, 305. first push plate, 306. second pull rod, 307. second push plate, 308. first clamping body, 309. second clamping body, 4. second guide sleeve, 401. third sleeve, 402. second plug assembly, 5. first structure, 6. first fastening body, 7. first support plate.
[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Specific embodiment:
[0028] like Figure 1 and Figure 2 As shown, the utility model provides a core clamp, comprising a base 1, a clamping sleeve 2 is mounted on the base 1, and a first guide sleeve 3 and a second guide sleeve 4 are fixedly mounted on both sides of the clamping sleeve 2.
[0029] A first sleeve 301 is fixedly disposed in the first guide sleeve 3, a second sleeve 302 is fixedly disposed in the first sleeve 301, and a first plug assembly 303 is slidably disposed in the second sleeve 302;
[0030] A third sleeve 401 is fixedly disposed in the second guide sleeve 4, and a second plug assembly 402 is slidably disposed in the third sleeve 401;
[0031] A first structure 5 is installed outside the first plug assembly 303 and the second plug assembly 402, and the first structure 5 is fixedly disposed in the clamping sleeve 2;
[0032] A first fastening body 6 is installed between the first structure 5 and the clamping sleeve 2 for fastening the first structure 5 and the clamping sleeve 2 .
[0033] like Figure 1 As shown, the utility model provides a core clamp, wherein the clamping sleeve 2 is threadedly fastened to the first guide sleeve 3 , and the clamping sleeve 2 is threadedly fastened to the second guide sleeve 4 .
[0034] like Figure 2 and Figure 3 As shown, the utility model provides a core clamp, the first plug assembly 303 includes a first plug installed in the second sleeve 302, a first draw rod 304 is slidably provided in the first plug, and a first push plate 305 is installed at one end of the first draw rod 304.
[0035] like Figure 2 and Figure 4 As shown, the utility model provides a core clamp, the second plug assembly 402 includes a second plug installed in the third sleeve, the first plug is slidably provided with a second draw rod 306, and a second push plate 307 is installed at one end of the second draw rod 306.
[0036] like Figure 3 and Figure 4 As shown, in the core clamp provided by the utility model, a first pressing body 308 is fixedly provided on the first push plate 305 , and a second pressing body 309 is fixedly provided on the second push plate 307 .
[0037] like Figure 3 and Figure 4 As shown, the utility model provides a core clamp, wherein the cross-sectional shape of the first pressing body 308 is a triangular design, and the cross-sectional shape of the second pressing body 309 is a triangular design.
[0038] like Figure 2 As shown, in the core clamp provided by the present invention, the first sleeve 301 and the second sleeve 302 are threadedly fastened to each other.
[0039] like Figure 2 As shown, in the core clamp provided by the present invention, the second guide sleeve 4 and the third shaft sleeve 401 are in interference fit.
[0040] like Figure 1As shown, the utility model provides a core clamp, wherein a first support plate 7 is installed between the clamping sleeve 2 and the base 1 for supporting the clamping sleeve 2 and fixing it on the base 1 .
[0041] During specific use, the first plug assembly 303 and the second plug assembly 402 are pushed to slide in the first sleeve 301 and the third sleeve 401 respectively, and then the first push plate 305 and the second push plate 307 first contact the core sample, and then apply an action load to the core sample. At the same time, the secondary load can be applied to one side of the core sample through the first pumping rod 304. The first clamping bodies 308 at different locations on the first push plate 307 are arranged at unequal intervals, and then the load applied to the core sample is inconsistent. At the same time, the secondary load can be applied to the other side of the core sample through the second pumping rod 306. The second clamping bodies 3009 are at different positions on the second push plate 307, and then the load applied to the core sample is inconsistent, and then the overall load applied to the core sample is inconsistent, so that a more realistic core load condition can be simulated.
[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
[0044] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A core holder, characterized in that: It comprises a base, on which a clamping sleeve is mounted, and on both sides of the clamping sleeve a first guide sleeve and a second guide sleeve are fixedly mounted respectively. A first sleeve is fixedly disposed in the first guide sleeve, a second sleeve is fixedly disposed in the first sleeve, and a first plug assembly is slidably disposed in the second sleeve; A third shaft sleeve is fixedly disposed in the second guide sleeve, and a second plug assembly is slidably disposed in the third shaft sleeve; A first structure is installed outside the first plug assembly and the second plug assembly, and the first structure is fixedly arranged in the clamping sleeve; A first fastening body is arranged between the first structure and the clamping sleeve, and is used for fastening the first structure and the clamping sleeve.
2. A core holder according to claim 1, characterized in that: The clamping sleeve is threadedly fastened to the first guide sleeve, and the clamping sleeve is threadedly fastened to the second guide sleeve.
3. A core holder according to claim 2, characterized in that: The first plug assembly comprises a first plug installed in the second shaft sleeve, a first draw rod is slidably provided in the first plug, and a first push plate is installed at one end of the first draw rod.
4. A core holder according to claim 3, characterized in that: The second plug assembly includes a second plug installed in the third sleeve, the first plug is slidably provided with a second draw rod, and a second push plate is installed at one end of the second draw rod.
5. A core holder according to claim 4, characterized in that: A first pressing body is fixedly disposed on the first push plate, and a second pressing body is fixedly disposed on the second push plate.
6. A core holder according to claim 5, characterized in that: The cross-sectional shape of the first pressing body is triangular in design, and the cross-sectional shape of the second pressing body is triangular in design.
7. A core holder according to claim 6, characterized in that: The first sleeve is threadedly fastened to the second sleeve.
8. A core holder according to claim 7, characterized in that: The second guide sleeve and the third shaft sleeve are in interference fit.
9. A core holder according to claim 8, characterized in that: A first supporting plate is arranged between the clamping sleeve and the base, and is used for supporting the clamping sleeve to be fixed on the base.