Undisturbed core sampling device

Abstract

The utility model provides an undisturbed core sampling device, which comprises a base plate part, an undisturbed core sampling part, a sampling part and an undisturbed core sampling part, and is characterized in that the base plate part provides a stable foundation for the undisturbed core sampling device; the fixing part is arranged above one side of the base plate part and is used for supporting and fixing one end of a sampling tube; the moving part is connected with the base plate part in a sliding manner and is used for supporting and moving a sampling tube; and the dismounting part is detachably connected with the moving part and is used for fixing and dismounting the outer tube of the sampling tube. According to the undisturbed core sampling device provided by the invention, the outer pipe of the sampling pipe can be quickly, safely and accurately detached after sampling is completed, so that the convenience of the operation process is greatly improved, and the labor intensity and the working efficiency of field workers are effectively reduced. In addition, it is ensured that the original state of the obtained undisturbed core is not damaged, and therefore the sampling efficiency and the sample quality of soil exploration are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engineering survey, in particular to a undisturbed core sampling device. BACKGROUND

[0002] Undisturbed core refers to soil or rock samples obtained through special sampling techniques, whose structure, stress, water content and chemical composition in natural state are not significantly disturbed, which can truly reflect the nature of soil in natural state, and has important significance for engineering investigation, environmental assessment and geological research.

[0003] In current soil survey practice, the sampling tube containing a half pipe has become a standard sampling tool, which is composed of an outer tube and an internal half pipe containing precious undisturbed core. This design aims to maximize the integrity of soil structure, thereby improving the representativeness of the sample. However, during the process of disassembling the half pipe to obtain the undisturbed core, it usually relies on manual operation. Due to the lack of special disassembly equipment, this step is often tedious and time-consuming. The operator needs to carefully separate the outer tube to avoid unnecessary disturbance to the internal undisturbed soil core. This manual operation is not only inefficient, but also requires high skills of the operator, and any carelessness may affect the quality of the sample.

[0004] Therefore, how to provide a sampling device for quick sampling tube to improve the sampling efficiency has become a technical problem to be solved in the field. CONTENT OF THE INVENTION

[0005] Therefore, the present application provides a undisturbed core sampling device.

[0006] According to the present application, a undisturbed core sampling device is provided, which comprises: a base plate part for providing a stable foundation for the undisturbed core sampling device; a fixing part arranged above one side of the base plate part for supporting and fixing one end of the sampling tube; a moving part in sliding connection with the base plate part for supporting and moving the sampling tube; and a disassembling part in detachable connection with the moving part for fixing and disassembling the outer tube of the sampling tube.

[0007] Specifically, the base plate part comprises: a base plate for providing stable support for the undisturbed core sampling device, the base plate being a rectangular plate with a groove structure on top, and a support frame comprising a first support frame and a second support frame, respectively fixedly arranged at the top end of the side wall of the groove structure of the base plate.

[0008] Specifically, a sliding structure is arranged on the side surface of the end of the base plate away from the support frame to the middle of the base plate for sliding connection with the moving part of the undisturbed core sampling device, and the sliding structure is arranged on the side wall of the groove structure.

[0009] Specifically, the fixing part comprises a clamping plate for fixing one end of the sampling tube and a connecting rod for fixing and releasing the sampling tube.

[0010] Specifically, the clamping plate comprises two semicircular clamping members and a connecting member, and the clamping members are fixedly connected to the top end of the connecting member, and the connecting member is provided with a through hole vertically arranged on the connecting member.

[0011] Specifically, the connecting rod comprises a sliding rod fixed to the support frame of the backing plate part and an adjusting rod passing through the second support frame of the backing plate part, and the sliding rod and the adjusting rod are arranged in parallel.

[0012] Specifically, the adjusting rod passes through the middle of the second support frame of the backing plate part, and a rotating disc is further arranged on the outside of the second support frame for rotating the adjusting rod to change the two clamping members of the clamping plate between the state of approaching the sampling tube and the state of moving away.

[0013] Specifically, the moving part comprises an inverted T-shaped structure, the long side of the inverted T-shaped structure is in sliding connection with the sliding structure of the backing plate part, and a circular structure is arranged at the top end of the short side of the inverted T-shaped structure, the circular structure is hollow inside for supporting and moving the sampling tube.

[0014] Specifically, the dismounting part comprises a dismounting ring comprising a rotating ring and a fixing member fixedly connected to the side surface of the rotating ring, a fixing column and a fixing ring, the fixing column passes through the perforation on the fixing member and is parallel to the radial direction of the dismounting ring and the fixing ring, and is fixedly connected with the fixing ring.

[0015] Specifically, the original core sampling device further comprises a placing device, the placing device is detachably connected with the backing plate part, and is used for placing and transferring the original core.

[0016] Specifically, the placing device comprises a placing plate for placing the original core sampled for multiple times, and a sealing cylinder arranged on the placing plate for fixing the original core.

[0017] The original core sampling device provided in the application can quickly, safely and accurately dismount the outer tube of the sampling tube after sampling is completed, greatly improving the convenience of the operation process, effectively reducing the labor intensity and work efficiency of the on-site workers. In addition, it also ensures that the original state of the taken original core is not damaged, thereby improving the sampling efficiency and sample quality of soil survey.

[0018] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrate the application and, together with their description, serve to explain the application. In the drawings:

[0020] Figure 1 A schematic view of a sampling device according to the present application when the sampling tube is not fixed.

[0021] Figure 2 A schematic view of a sampling device according to the present application when the sampling tube is fixed.

[0022] Figure 3 A schematic view of a sampling device according to the present application Figure 1 A schematic view of A in the sampling device according to the present application.

[0023] Figure 4 A schematic view of B in the sampling device according to the present application Figure 1 A schematic view of B in the sampling device according to the present application.

[0024] Figure 5 A schematic view of C in the sampling device according to the present application Figure 2 A schematic view of C in the sampling device according to the present application.

[0025] Explanation of the numbered items in the drawings: 1 - sampling tube; 2 - backing plate; 3 - groove structure; 4 - support frame; 5 - sliding structure; 6 - clamping plate; 7 - connecting rod; 8 - turntable; 9 - inverted T-shaped structure; 10 - circular structure; 11 - disassembly ring; 12 - fixing column; 13 - fixing ring; 14 - placement device; 41 - first support frame; 42 - second support frame; 61 - clamping piece; 62 - connecting piece; 63 - anti-skid piece; 71 - sliding rod; 72 - adjusting rod; 81 - handle; 111 - rotating ring; 112 - fixing piece; 131 - soft pad; 141 - placement plate; 142 - sealing cylinder; 143 - positioning pin; 144 - positioning hole; 145 - hinge; 146 - buckle. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] In engineering surveying, the in-situ core is kept unchanged to truly reflect the structure and physical properties of the soil layer, ensure the reliability of experimental data, accurately assess the geological conditions, and thus provide a scientific basis for foundation design and construction, reduce human error, and improve engineering safety. This process needs to effectively avoid distortion of the soil sample during testing to ensure the accuracy and safety of engineering design. In engineering surveying, a half-pipe is often used as a sampling tool, and the half-pipe usually has an outer pipe. However, the outer pipe is difficult to remove and needs to be completely dependent on manual operation, which is low in efficiency. The removal of the outer pipe also has high technical requirements for the operator, and any slight carelessness may affect the sample quality. Therefore, the present application proposes a in-situ core sampling device.

[0028] As Figure 1 and Figure 2 According to the present application, a core sampling device is provided, which comprises: a base plate part providing a stable base for the core sampling device; a fixing part arranged above one side of the base plate part for supporting and fixing one end of a sampling tube 1; a moving part in sliding connection with the base plate part for supporting and moving the sampling tube 1; and a dismounting part in detachable connection with the moving part for fixing and dismounting the outer tube of the sampling tube 1.

[0029] The core includes, but is not limited to, undisturbed soil, undisturbed rock, undisturbed sand, undisturbed sediment, undisturbed coal seam or undisturbed karst, etc.

[0030] When the sampling tube 1 is placed in the core sampling device, the moving part is close to the fixing part to lift one end of the sampling tube 1 and slide away from the fixing part, so that the sampling tube 1 is completely placed above the base plate part, and the fixing part fixes one end of the sampling tube 1.

[0031] The dismounting part is temporarily fixed to the moving part when not working, and is disconnected from the moving part when working. On the one hand, the dismounting part fixes one end of the sampling tube 1 away from the fixing part, and then performs the dismounting action.

[0032] The core sampling device provided by the present application provides a stable base through the base plate part to ensure the stability of the device during sampling; the fixing part firmly supports the sampling tube 1 to avoid position deviation and improve the accuracy of sampling; the moving part is in sliding connection with the base plate part, which facilitates flexible adjustment of the sampling tube 1 and adapts to different operation requirements; and the dismounting part is in detachable connection with the moving part, which makes the dismounting of the outer tube of the sampling tube 1 more convenient, thereby reducing the operation time, simplifying the process, and reducing the risk of sample damage.

[0033] In order to provide a stable base for the sampling tube 1, specifically, the base plate part comprises: a base plate 2 for providing stable support for the core sampling device, the base plate 2 being a rectangular plate with a groove structure 3 on the top, and a support frame 4, the support frame 4 comprising a first support frame 41 and a second support frame 42, respectively fixedly arranged at the top of the side wall of one end of the groove structure 3. The above-mentioned base plate part can effectively stabilize each component of the sampling device, avoid sliding or displacement, and improve the sampling precision. The support frame arranged on the side wall of the groove structure 3 can lift the sampling tube 1 to a certain height, facilitating dismounting. The above-mentioned base plate 2 indirectly increases the height of the sampling tube 1 after being lifted through the design of the groove structure 3, and secondly, the groove structure 3 also provides a limiting action for the moving part.

[0034] In order to make the above-mentioned moving part can move, specifically, the base plate 2 away from the support frame 4 one end side to the middle of the base plate 2 is provided with a sliding structure 5, for with the moving part of the original state core sampling device sliding connection, the sliding structure 5 is arranged on the side wall of the groove structure 3. The above-mentioned sliding structure can be the appropriate form of the moving part sliding, for example, can be the side wall of the groove structure 3, also can be the slide rail on the side wall of the groove structure 3, preferably set in the hole of the side wall of the groove structure 3. The sliding mechanism is the hole of the side wall of the groove structure 3, on the one hand, can facilitate the movement of the moving part, on the other hand, can prevent the moving part translocation or out, resulting in the sampling tube 1 is subjected to a greater impact, cause the damage of the original state core.

[0035] As shown in Figure 1 and Figure 3 In order to fix the sampling tube 1 firmly, facilitate the disassembly of the outer tube of the sampling tube 1, specifically, the fixed part can include: the clamping plate 6, the clamping plate 6 is used to fix one end of the sampling tube 1; Connecting rod 7, the connecting rod 7 is convenient for the clamping plate 6 to fix and loosen the sampling tube 1. By clamping plate 6 firmly fixed one end of the sampling tube 1, avoid the sampling tube 1 shaking in the operation process, so as to guarantee the outer tube disassembly smoothly. The connecting rod 7 makes the clamping plate 6 can easily realize the fixation and loosening of the sampling tube 1, simplifies the operation process, improves the replacement efficiency. The adjusting function of the connecting rod 7 makes the fixing and disassembly more labor-saving. In addition, the clamping plate 6 and the connecting rod 7 have strong adaptability, which can be applied to sampling tubes 1 of different sizes, improving the universality of the fixed part. The above-mentioned clamping plate 6 can include two semicircular clamping pieces 61 and connecting pieces 62, and the clamping pieces 61 are fixedly connected to the top end of the connecting pieces 62, and the connecting pieces 62 are provided with through holes vertically arranged on the connecting pieces 62 for penetrating the above-mentioned connecting rod 7. The two semicircular clamping pieces 61 form a stable fixing effect around the sampling tube 1, ensuring that the sampling tube 1 does not slide or deviate. The above-mentioned through hole allows the connecting rod 7 to pass through, realizing flexible adjustment of the clamping piece 61, facilitating quick fixing or loosening of the sampling tube 1, simplifying the operation process and improving the replacement efficiency. At the same time, this design is suitable for sampling tubes 1 of different diameters, enhancing the compatibility and structural stability of the equipment, ensuring higher reliability of the device in operation. The inside of the above-mentioned clamping piece 61 semicircular is also provided with an antiskid piece 63, and the above-mentioned antiskid piece 63 can be an antiskid coating, an antiskid patch, a friction powder layer, a soft lining, a micro suction disc layer, preferably an antiskid strip, which can provide high friction, effectively preventing the sampling tube 1 from sliding, and the soft material can also provide cushioning to prevent damage to the sampling tube 1. The antiskid strip is easy to install, easy to replace, durable and suitable for long-term use, which can reduce the maintenance frequency and prolong the service life of the device. The above-mentioned antiskid strip can be of appropriate material, for example, it can be rubber.

[0036] As shown in Figure 2As shown, in order to facilitate the movement of the clamping pieces 61, the clamping pieces 61 can slide on the connecting rod 7. Specifically, the connecting rod 7 can include a sliding rod 71 fixed to the base plate support frame and an adjusting rod 72 passing through the second base plate support frame 42, and the sliding rod 71 and the adjusting rod 72 are arranged in parallel. The number of sliding rods 71 can be appropriate. In order to keep the balance of the clamping pieces 61, the number of sliding rods 71 in the preferred embodiment of the present application is 2, which are arranged on both sides of the adjusting rod 72.

[0037] In order to adjust the clamping state of the clamping pieces 61, specifically, the adjusting rod 72 passes through the middle of the second support frame 42 of the base plate, and a turntable 8 is arranged outside the second support frame 42 for rotating the adjusting rod 72 to change the two clamping pieces 61 of the clamping plate 6 between the close and far states of the sampling tube 1. The clamping pieces 61 and the adjusting rod 72 are threadedly connected. The upper part of the adjusting rod 72 is provided with two opposite threads. The threaded connection can make the two clamping pieces 61 close or far away at the same time, and ensure the stable fixation of the sampling tube 1. The outside of the turntable 8 is provided with a handle 81 perpendicular to the axial direction of the turntable 8, which facilitates the rotation of the turntable 8.

[0038] As shown in Figure 1 and Figure 2 In order to improve the operation stability of the device, specifically, the moving part can include an inverted T-shaped structure 9, the long side of the inverted T-shaped structure 9 is in sliding connection with the sliding structure 5 of the base plate, and a circular structure 10 is arranged at the top end of the short side of the inverted T-shaped structure 9. The circular structure 10 is hollow inside for supporting and moving the sampling tube 1. It can ensure smooth movement and controlled direction, and improve the operation stability of the device. The circular structure 10 and the inverted T-shaped structure 9 are fixedly connected by welding. The short side of the inverted T-shaped structure 9 is provided with a hollow circular structure 10 at the top end, which is convenient for supporting the sampling tube 1, keeping it stable and protected during movement. This design not only facilitates the adjustment and positioning of the sampling tube 1, but also can adapt to different operation requirements, and enhances the flexibility and reliability of the device. The long side of the T-shaped structure 9 is also provided with a limiting groove at both ends for connecting the sliding mechanism 5, preventing the displacement of the moving part.

[0039] As shown in Figure 4As shown, in order to facilitate the disassembly of the outer tube of the sampling tube 1, specifically, the disassembly part can include: a disassembly ring 11, the disassembly ring 11 includes a swivel ring 111 and a fixed part 112 fixedly connected to the side of the swivel ring 111; a fixed column 12 and a fixed ring 13, the fixed column 12 passes through the perforation on the fixed part 112 and is parallel to the radial direction of the disassembly ring 11 and the fixed ring 13, and is fixedly connected with the fixed ring 13. The number of the above-mentioned fixed part 112 is two, which are symmetrically arranged on the side of the above-mentioned swivel ring 111, and the number of the above-mentioned fixed column 12 is also two, which respectively pass through the above-mentioned fixed part 112 and are connected with the above-mentioned fixed part 112 through thread cooperation, used for adjusting the fixed ring 13 to fix the sampling tube 1. A handle 15 is further arranged on the outside of the above-mentioned swivel ring 111, used for rotating the swivel ring 111 and disassembling the outer tube. The above-mentioned handle 15 can be a proper number, for example, it can be one or two, and it is preferably symmetrically arranged on the outside of the above-mentioned swivel ring. The form of the above-mentioned handle can be a proper form convenient for rotating the swivel ring. The inside of the above-mentioned fixed ring 13 is further provided with a soft pad 131, used for increasing the friction between the fixed ring 13 and the sampling tube 1, and also providing a certain buffer. The soft pad 131 can be a proper material with anti-skid performance, for example, it can be rubber.

[0040] The outer diameter and the inner diameter of the above-mentioned swivel ring 111 are both greater than the outer diameter of the above-mentioned moving part circular structure 10. On the one hand, the disassembly part can be temporarily fixed on the moving part when no disassembly work is performed, preventing the disassembly part from being lost. On the other hand, when the sampling tube 1 is installed, the sampling tube 1 is also conveniently fixed by the fixed ring 13. In the process of disassembly, the swivel ring 111 is gradually disconnected from the moving part. The outer side of the above-mentioned swivel ring 111 and the outer diameter of the moving part circular structure 10 are provided with threads of the same width for cooperation and connection.

[0041] As shown in Figure 2 In order to temporarily store the original core in the half-combined tube after the sampling tube 1 is disassembled, specifically, the original core sampling device can further include a placing device 14, which is detachably connected with the pad part and used for placing and transferring the original core. The placing device 14 can temporarily store the original core, and then transfer it after all sampling is completed, effectively ensuring the consistency of the original core sampling and avoiding differences caused by batch transfer.

[0042] As shown in Figure 2 and Figure 5As shown, in order to temporarily store the undisturbed core, specifically, the placing device can include a placing plate 141 for placing the undisturbed core of multiple samplings, and a sealing cylinder 142 arranged on the placing plate 141 for fixing the undisturbed core. The placing plate 141 is detachably connected with the pad plate part, facilitating the transfer of the placing plate. The detachable connection can be any suitable manner, such as bolt connection, buckle connection, magnetic attraction connection, sliding groove connection, and preferably positioning pin connection. Positioning pins 143 are arranged at both ends of the long side of the pad plate 2, and corresponding positioning holes 144 are arranged at both ends of the placing plate 141. When in use, the placing plate 141 is connected with the pad plate 2, and when it needs to be transferred, the connection is disconnected. The use of positioning pin connection makes the transfer of the undisturbed core more convenient and avoids the problem of damage to the undisturbed core caused by vibration during the transfer process. A semicircular groove is also arranged on the placing plate 141 for storing the undisturbed core. The sealing cylinder 142 is also a semicircular groove structure corresponding to the groove on the placing plate 141. The sealing cylinder 142 is connected with one end of the placing plate 141 through a hinge 145 and connected with the other end through a buckle 146, facilitating the opening or closing of the sealing cylinder. The number of grooves on the placing plate 141 can be set according to needs.

[0043] The undisturbed core sampling device provided by the present application can quickly, safely and accurately disassemble the outer tube after sampling, greatly improving the convenience of the operation process, effectively reducing the labor intensity and work efficiency of the on-site workers. In addition, it also ensures that the original state of the taken undisturbed core is not damaged, thereby improving the sampling efficiency and sample quality of soil exploration.

[0044] The above describes the preferred embodiments of the present application, but the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all belong to the protection scope of the present application.

[0045] In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present application.

[0046] In addition, the various embodiments of the present application can also be combined in any manner, as long as they do not deviate from the idea of the present application, and they should also be considered as disclosed by the present application.

Claims

1. An undisturbed core sampling device characterized by, The original core sampling device comprises: a base plate part providing a stable base for the original core sampling device; a fixing part arranged on one side of the base plate part for supporting and fixing one end of a sampling tube (1); a moving part in sliding connection with the base plate part for supporting and moving the sampling tube (1); a dismounting part in detachable connection with the moving part for fixing and dismounting the outer tube of the sampling tube (1).

2. The intact core sampling device of claim 1, wherein, The base plate part comprises a base plate (2) for providing a stable support for the original core sampling device, the base plate (2) being a rectangular plate with a groove structure (3) on the top, and a support frame (4) comprising a first support frame (41) and a second support frame (42) fixedly arranged on the top end of the side wall of one end of the groove structure (3) respectively. The side surface of one end of the base plate (2) away from the support frame (4) is provided with a sliding structure (5) in the middle of the base plate (2) for sliding connection with the moving part of the original core sampling device, and the sliding structure (5) is arranged on the side wall of the groove structure (3).

3. The intact core sampling device of claim 2, wherein, The fixing part comprises a clamping plate (6) for fixing one end of the sampling tube (1), and a connecting rod (7) for facilitating the fixing and loosening of the sampling tube (1) by the clamping plate (6).

4. The intact core sampling device of claim 1, wherein, The clamping plate (6) comprises two semicircular clamping pieces (61) and a connecting piece (62), the clamping pieces (61) are fixedly connected to the top end of the connecting piece (62), and the connecting piece (62) is provided with a through hole arranged vertically on the connecting piece (62). The connecting rod (7) comprises a sliding rod (71) fixed to the support frame (4) of the base plate part and an adjusting rod (72) passing through the second support frame (42) of the base plate part, and the sliding rod (71) and the adjusting rod (72) are arranged in parallel.

5. The intact core sampling device of claim 4, wherein, The adjusting rod (72) passes through the middle of the second support frame (42) of the base plate part, and a turntable (8) is further arranged on the outside of the second support frame (42) for rotating the adjusting rod (72) to change the two clamping pieces (61) of the clamping plate (6) between the state of approaching the sampling tube (1) and the state of being away from it.

6. The intact core sampling device of claim 4, wherein, The moving part comprises an inverted T-shaped structure (9) in sliding connection with the sliding structure (5) of the base plate part, and a circular structure (10) arranged at the top end of the short side of the inverted T-shaped structure (9), the circular structure (10) being hollow inside for supporting and moving the sampling tube (1).

7. The intact core sampling device of claim 6, wherein, The dismounting part comprises a dismounting ring (11) comprising a rotating ring (111) and a fixing piece (112) fixedly connected to the side surface of the rotating ring (111), a fixing column (12) passing through a through hole on the fixing piece (112) in parallel with the radial direction of the dismounting ring (11) and the fixing ring (13), and the fixing ring (13) is fixedly connected with the fixing column (12).

8. The intact core sampling device of claim 1, wherein, ​ ​ 9. The intact core sampling device of claim 1, wherein, ​ ​ ​ 10. The intact core sampling device of claim 1, wherein, The in-situ core sampling device further comprises a placing device (14) detachably connected with the pad plate portion, used for placing and transferring the in-situ core.

11. The intact core sampling device of claim 10, wherein, The placing device comprises a placing plate (141) used for placing the in-situ cores sampled for multiple times; and a sealing cylinder (142) arranged on the placing plate (141) and used for fixing the in-situ core.

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