Deposited sediment sampling sleeve
By designing a sediment sampling casing including outer tube, inner tube and connecting rod, the problems of drilling hole closure and mud core compression in traditional sampling methods are solved, and stable collection and high-fidelity samples are achieved.
Patent Information
- Application Number
- CN202421991046.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-16
AI Technical Summary
When collecting soft deposited mud cores in the reservoir desolation area, traditional single-tube collection methods can easily lead to drilling closure, seepage or collapse, and the pushing method sampling will lead to compression of mud cores, increasing the complexity of sampling work.
A sedimentary sediment sampling casing is designed, including an outer pipe, an inner pipe and a connecting rod. The outer pipe and a connecting rod can be lengthened by splicing. The outer walls of the inner pipe and the outer pipe have scales. The inner wall of the inner pipe is smooth to reduce friction and the teeth prevent the silt from falling.
This casing solves the problems of drilling holes, reducing mud core compression and improving sampling accuracy in traditional methods, simplifies the sampling process and improves sample fidelity.
Smart Images
Figure CN223021583U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lake and reservoir sediment sample collection, and more specifically, to a sediment sampling casing pipe. Background Technique
[0002] Sediments deposited in lakes, reservoirs, depressions, etc. are recorders of the regional environmental evolution process, with advantages such as good time continuity, high spatial coverage, and rich information storage, and are widely used in the research of environmental changes. Collecting high-fidelity sediment core samples is the key to constructing the time series framework of the sediment layer. The water-level-fluctuation zone of a reservoir is a special geomorphic unit that is periodically submerged and exposed. Among them, the exposed period is the best time to collect core samples in the water-level-fluctuation zone. However, the sediment layer in the water-level-fluctuation zone of a reservoir is different from the terrestrial soil and basin sediments, with a relatively high water content and a relatively low compactness. When using traditional single-tube to collect such soft sediment cores, at least two problems are faced. One is that when collecting the core of a thick sediment body in a segmented manner, the borehole will close and seep water to varying degrees when the sampling tube is pulled out, and even collapse, which will lead to the closure of the layer where the borehole is repeatedly collected, and ultimately make the chronology framework of the sediment layer disordered. The other is that when using the pushing method to take out the sample from the sampling tube, it will cause the core to be compressed to varying degrees. Therefore, it is necessary to measure the sampling depth and core length multiple times and calculate the compression ratio, which makes the sampling work more cumbersome.
[0003] Based on the above problems, we provide a sediment sampling casing pipe.
[0004] The above information disclosed in this background technique is only used to increase the understanding of the background technique of the utility model. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Content of the Utility Model
[0005] In order to solve the problems raised in the above background technique, the utility model provides a sediment sampling casing pipe.
[0006] The sediment sampling casing pipe provided by the utility model adopts the following technical solution:
[0007] A sediment sampling casing pipe includes a plurality of outer pipes that can be assembled and connected to each other; a plurality of inner pipes that are slidably arranged inside the outer pipes and can be assembled and connected to each other; a connecting rod joint that is threadedly assembled at the top end of the inner pipe, and a connecting rod is threadedly assembled at the top of the connecting rod joint; scale lines are engraved on the outer sides of both the outer pipes and the inner pipes.
[0008] Preferably, a handle is threadedly assembled at the top end of the connecting rod.
[0009] Preferably, a triangular ring guide wheel is threadedly assembled in the middle of the connecting rod to increase the stability of the connecting rod.
[0010] Preferably, the number of the connecting rods is at least two, and the connecting rods can be threadedly assembled with each other.
[0011] Preferably, a sampling drill bit is threadedly assembled at the bottom end of the inner tube, and a plurality of tooth pieces for blocking materials are fixedly assembled inside the sampling drill bit.
[0012] Preferably, the tooth pieces are arranged obliquely.
[0013] Preferably, the inner tubes are threadedly assembled with each other.
[0014] Preferably, limiting holes are formed in the side surfaces of both ends of the outer tube, two outer tubes are connected by a clamp, and a screw is assembled on the side surface of the clamp, and the screw is threadedly connected in the limiting hole.
[0015] In summary, the utility model includes the following beneficial technical effects:
[0016] It is composed of an outer tube for stabilizing drilling, an inner tube for collecting mud cores and connecting rods supporting the inner tube. Among them, the outer tube and the connecting rods can be lengthened by splicing for sampling sediment bodies of different thicknesses; the outer walls of the outer tube, the inner tube and the connecting rods are provided with scales, and the sampling depth value can be directly obtained; the inner side of the outer tube is a smooth surface, which can reduce the friction between the inner wall of the inner tube and the deposited sediment and the resulting mud core compression rate.
[0017] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural view of the outer tube, the clamp and the limiting hole in the embodiment of the utility model;
[0019] Figure 2 is a schematic structural view of the inner tube, the connecting rod joint, the connecting rod, the handle and the triangular ring guide wheel in the embodiment of the utility model;
[0020] Figure 3 is a schematic structural view of the inner tube, the connecting rod joint, the connecting rod, the handle and the triangular ring guide wheel on the other side in the embodiment of the utility model;
[0021] Figure 4 is Figure 2 the enlarged structural view at A in
[0022] Figure 5 is a schematic structural view of the inner tube and the sampling drill bit in the embodiment of the utility model.
[0023] Description of the reference numerals: 1. Outer tube; 2. Inner tube; 3. Link joint; 4. Link; 5. Handle; 6. Triangular ring guide wheel; 7. Sampling drill bit; 8. Dental piece; 9. Limiting hole; 10. Clamp; 11. Air duct. Specific embodiments
[0024] The following will further describe the present utility model in detail with reference to the Figures 1 to 5 accompanying drawings.
[0025] It should be noted that the accompanying drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figures, the relative dimensions and ratios of the parts shown in the figures are exaggerated or reduced in size for illustration, and any dimensions are only exemplary and not limiting. In addition, the same reference numerals are used for the same structures, elements or fittings appearing in more than two figures to reflect similar features.
[0026] Embodiment 1
[0027] An embodiment of the present utility model discloses a sediment sampling sleeve. Referring to Figures 2 to 5 , a sediment sampling sleeve includes a plurality of outer tubes 1 that can be assembled and connected to each other; a plurality of inner tubes 2 that are slidably arranged inside the outer tubes 1 and can be assembled and connected to each other; a link joint 3 that is threadedly assembled at the top end of the inner tube 2, and a link 4 is threadedly assembled at the top of the link joint 3; scale lines are engraved on the outer sides of both the outer tube 1 and the inner tube 2.
[0028] Specifically, a handle 5 is threadedly assembled at the top end of the link 4, which is convenient for the user to push the inner tube 2.
[0029] Specifically, a triangular ring guide wheel 6 is threadedly assembled in the middle of the link 4, which is used to increase the stability of the link 4. By setting the triangular ring guide wheel 6, the stability of the middle part of the link 4 can be increased during the downward pressing of the link 4, avoiding the situation of the link 4 being bent.
[0030] Specifically, the number of links 4 is at least two, and the links 4 can be threadedly assembled with each other. The links 4 can be extended by splicing to meet the sampling requirements at different depths.
[0031] Specifically, a sampling drill bit 7 is threadedly assembled at the bottom end of the inner tube 2, and a plurality of dental pieces 8 for blocking materials are fixedly assembled inside the sampling drill bit 7.
[0032] Specifically, the dental pieces 8 are arranged obliquely. By setting the dental pieces 8, the falling of sediment in the inner tube 2 can be reduced.
[0033] Specifically, the inner tubes 2 are threadedly assembled with each other, and the inner tubes 2 can be extended by splicing to meet the sampling requirements.
[0034] Specifically, limiting holes 9 are provided on the sides at both ends of the outer tube 1. The two outer tubes 1 are connected by a clamp 10, and screws are assembled on the side of the clamp 10. The screws are threadedly connected in the limiting holes 9. Align the ends of the two outer tubes 1, then fix them with the clamp 10, and then assemble screws on the outside of the clamp 10 and arrange the screws in the limiting holes 9. After the two outer tubes 1 are assembled, waterproof tape is wrapped around the outside of the clamp 10.
[0035] First, insert the outer tube 1 into the sediment deposition layer (multiple outer tubes 1 can be assembled according to the sediment thickness and the depth to be sampled), then insert the inner tube 2 into the outer tube 1, and then press down the handle 5 to make the inner tube 2 move downward in the outer tube 1. In this way, the sediment in the outer tube 1 can enter the inner tube 2. When the inner tube 2 collects the sediment sample, pull out the inner tube 2. At this time, the dental film 8 can block the sediment to prevent the sediment from falling out of the inner tube 2;
[0036] It is composed of an outer tube 1 for stabilizing the drilling, an inner tube 2 for collecting the core, and a connecting rod 4 supporting the inner tube 2. Among them, the outer tube 1 and the connecting rod 4 can be lengthened by splicing for sampling sediment bodies with different thicknesses; scales are provided on the outer walls of the outer tube 1, the inner tube 2, and the connecting rod 4, and the sampling depth value can be directly obtained; the inner side of the outer tube 1 is a smooth surface, which can reduce the friction between the inner wall of the inner tube 2 and the deposited sediment and the resulting core compression rate;
[0037] The inner tube 2 is smooth on both sides to ensure that the inner wall of the outer tube 1 and the inner wall of the inner tube 2 can be fully fitted and move freely. The inner tube 2 has a specific length. The stress end of the inner tube 2 is connected to the connecting rod 4. A triangular ring guide wheel 6 is provided in the middle of the connecting rod 4 to ensure that the pressure applied to the top of the connecting rod 4 can be efficiently transmitted to the inner tube 2 and the inner tube 2 does not deform after being stressed.
[0038] Embodiment 2
[0039] This embodiment is further optimized on the basis of the above embodiment. The same parts as the foregoing technical solutions will not be described in detail herein. As Figure 4 shown, in order to better implement the present invention, the following setting method is particularly adopted: in this embodiment, an air guide tube 11 is connected and assembled at the top of the connecting rod joint 3. By providing the air guide tube 11, it is convenient to discharge the gas in the inner tube 2 during sampling.
[0040] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the existing technology. The machines, parts, and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail herein.
[0041] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0042] In the present utility model, unless otherwise clearly specified and defined, the terms such as "mounted", "connected", "connected to", "fixed" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0043] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature in terms of horizontal height.
[0044] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0045] In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0046] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A sediment sampling casing, characterized in that: include: A plurality of outer tubes (1), wherein the outer tubes (1) can be assembled and connected to each other; A plurality of inner tubes (2) are slidably arranged in the outer tube (1), and the inner tubes (2) can be assembled and connected to each other; A connecting rod joint (3) is threadedly assembled on the top of the inner tube (2), and a connecting rod (4) is threadedly assembled on the top of the connecting rod joint (3); The outer side surfaces of the outer tube (1) and the inner tube (2) are both engraved with scale lines.
2. A sediment sampling sleeve according to claim 1, characterized in that: The top end of the connecting rod (4) is threadedly equipped with a handle (5).
3. A sediment sampling sleeve according to claim 1, characterized in that: The middle thread of the connecting rod (4) is equipped with a triangular ring guide wheel (6) for increasing the stability of the connecting rod (4).
4. A sediment sampling sleeve according to claim 1, characterized in that: The number of the connecting rods (4) is at least two, and the connecting rods (4) can be threadedly assembled.
5. The sediment sampling sleeve according to claim 1, characterized in that: The bottom end of the inner tube (2) is threadedly mounted with a sampling drill bit (7), and a plurality of tooth pieces (8) for blocking materials are fixedly mounted inside the sampling drill bit (7).
6. A sediment sampling sleeve according to claim 5, characterized in that: The tooth blade (8) is arranged obliquely.
7. A sediment sampling sleeve according to claim 1, characterized in that: The inner tubes (2) are threadedly assembled.
8. The sediment sampling sleeve according to claim 1, characterized in that: The sides of both ends of the outer tube (1) are provided with limiting holes (9), and the two outer tubes (1) are connected by a clamp (10). The sides of the clamp (10) are equipped with screws, and the screws are threadedly connected in the limiting holes (9).