Undisturbed core sampling device

Abstract

The invention 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, and in particular to an intact core sampling device. Background Art

[0002] An undisturbed core refers to a soil or rock sample obtained through special sampling techniques, whose structure, stress, moisture content and chemical composition in its natural state have not been significantly disturbed. It can truly reflect the properties of the soil in its natural state and is of great significance for engineering surveys, environmental assessments and geological research.

[0003] In current soil survey practices, a sampling tube containing a half-tube has become a standard sampling tool. The sampling tube consists of an outer tube and an inner half-tube, which contains a precious undisturbed core. This design is intended to maximize the integrity of the soil structure, thereby improving the representativeness of the sample. However, in the process of disassembling the half-tube to obtain the undisturbed core, manual operation is usually relied on. Due to the lack of dedicated disassembly equipment, this step is often cumbersome and time-consuming. The operator needs to carefully separate the outer tube to avoid unnecessary disturbance of the undisturbed soil core inside. This manual operation is not only inefficient, but also requires high skills of the operator, and the quality of the sample may be affected if not handled with care.

[0004] Therefore, how to provide a sampling device for a rapid sampling tube to improve the sampling efficiency has become a technical problem that needs to be solved in the art. Summary of the invention

[0005] In view of this, the present application proposes an original core sampling device.

[0006] According to the present application, an original core sampling device is proposed, which includes: a pad portion, which provides a stable foundation for the original core sampling device; a fixing portion, which is arranged above one side of the pad portion and is used to support and fix one end of the sampling tube; a moving portion, which is slidably connected to the pad portion and is used to support and move the sampling tube; and a disassembly portion, which is detachably connected to the moving portion and is used to fix and disassemble the outer tube of the sampling tube.

[0007] Specifically, the pad part includes: a pad, used to provide stable support for the original core sampling device, the pad is a rectangular plate with a groove structure on the top, and a support frame, the support frame includes a first support frame and a second support frame, which are respectively fixed on the top of the side wall of the pad groove structure.

[0008] Specifically, a sliding structure is provided from the side surface of one end of the pad away from the support frame to the middle of the pad, which is used for sliding connection with the moving part of the original core sampling device, and the sliding structure is provided on the side wall of the groove structure.

[0009] Specifically, the fixing part includes: a clamping plate, which is used to fix one end of the sampling tube; and a connecting rod, which facilitates the clamping plate to fix and release the sampling tube.

[0010] Specifically, the clamping plate includes two semicircular clamping members and a connecting member, and the clamping member is 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 includes a sliding rod fixed to the support frame of the pad part and an adjusting rod passing through the second support frame of the pad part, and the sliding rod is arranged in parallel with the adjusting rod.

[0012] Specifically, the adjustment rod passes through the middle of the second support frame of the pad portion, and a turntable is provided on the outer side of the second support frame for rotating the adjustment rod so that the two clamping members of the clamping plate can be switched between a state close to the sampling tube and a state away from the sampling tube.

[0013] Specifically, the moving part includes an inverted T-shaped structure, the long side of which is slidably connected to the sliding structure of the pad part; and a circular structure arranged at the top of the short side of the inverted T-shaped structure, the circular structure is hollow inside and is used to support and move the sampling tube.

[0014] Specifically, the disassembly part includes: a disassembly ring, which includes a swivel and a fixing piece fixedly connected to the side of the swivel; a fixing column and a fixing ring, wherein the fixing column passes through a through hole on the fixing piece and is parallel to the radial direction of the disassembly ring and the fixing ring, and is fixedly connected to the fixing ring.

[0015] Specifically, the original core sampling device further comprises a placing device, which is detachably connected to the pad portion and is used for placing and transferring the original core.

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

[0017] The original core sampling device proposed in this application can enable the sampling tube to be quickly, safely and accurately removed from the outer tube after sampling is completed, greatly improving the convenience of the operation process and effectively reducing the labor intensity and work efficiency of on-site staff. In addition, it also ensures that the original state of the original core taken 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 subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present application, and the schematic implementation modes and descriptions of the present application are used to explain the present application. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the original core sampling device according to the present application when the sampling tube is not fixed.

[0021] Figure 2 This is a schematic diagram of fixing the sampling tube according to the original core sampling device of the present application.

[0022] Figure 3 For the original core sampling device according to the present application Figure 1 An enlarged schematic diagram of A in FIG.

[0023] Figure 4 For the original core sampling device according to the present application Figure 1 An enlarged schematic diagram of B in FIG.

[0024] Figure 5 For the original core sampling device according to the present application Figure 2 Schematic diagram of C in FIG.

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

[0026] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with the implementation modes.

[0027] In engineering surveys, the original core is kept unchanged in order to truly reflect the structure and physical properties of the soil layer, ensure the reliability of experimental data, accurately evaluate geological conditions, and thus provide a scientific basis for foundation design and construction, reduce human errors, and improve engineering safety. This process needs to effectively avoid distortion of soil samples during testing to ensure the accuracy and safety of engineering design. In engineering surveys, semi-closed tubes are often used as sampling tools. Semi-closed tubes usually have outer tubes outside, but the outer tubes are difficult to remove and require manual operation, which is inefficient. The removal of the outer tube also has high technical requirements for the operator, and the quality of the sample may be affected if it is not careful. Therefore, the present application proposes an original core sampling device.

[0028] like Figure 1 and Figure 2 As shown, according to the present application, an original core sampling device is proposed, which includes: a pad portion, which provides a stable foundation for the original core sampling device; a fixing portion, which is arranged above one side of the pad portion and is used to support and fix one end of the sampling tube 1; a moving portion, which is slidably connected to the pad portion and is used to support and move the sampling tube 1; a disassembly portion, which is detachably connected to the moving portion and is used to fix and disassemble the outer tube of the sampling tube 1.

[0029] The above-mentioned original core includes but is not limited to original soil, original rock, original sand, original sediment, original coal seam or original karst.

[0030] When the sampling tube 1 is placed in the original core sampling device, the moving part approaches the fixing part to lift one end of the sampling tube 1 and slides away from the fixing part so that the sampling tube 1 is completely placed above the pad part. The fixing part fixes one end of the sampling tube 1.

[0031] The disassembly part is temporarily fixed on the moving part when not in operation, and disconnected from the moving part when in operation. On the one hand, the end of the sampling tube 1 away from the fixed part is fixed, and then the disassembly action is performed.

[0032] The original core sampling device proposed in the present application provides a solid foundation through the pad part to ensure the stability of the device during the sampling process; the fixed part firmly supports the sampling tube 1 to avoid position displacement to improve the accuracy of sampling; the movable part is slidably connected to the pad part, which is convenient for flexible adjustment of the sampling tube 1 to adapt to different operation requirements; the disassembly part is detachably connected to the movable part, making the disassembly 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 foundation for the above-mentioned sampling tube 1, specifically, the pad portion includes: a pad 2, which is used to provide stable support for the original core sampling device, the pad 2 is a rectangular plate with a groove structure 3 on the top, and a support frame 4, the support frame 4 includes a first support frame 41 and a second support frame 42, which are respectively fixedly arranged on the top of the side wall of one end of the groove structure 3. The above-mentioned pad portion can effectively stabilize the various components of the sampling device, avoid sliding or displacement, and improve the sampling accuracy. The support frame arranged on the side wall of the groove structure 3 can raise the sampling tube 1 to a certain height for easy disassembly. The above-mentioned pad 2 indirectly increases the height of the sampling tube 1 after it is raised through the design of the groove structure 3. Secondly, the groove structure 3 can also provide a limiting effect for the moving part.

[0034] In order to enable the above-mentioned moving part to move, specifically, a sliding structure 5 is provided from the side surface of one end of the pad 2 away from the support frame 4 to the middle of the pad 2, which is used 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. The above-mentioned sliding structure can be in a suitable form for sliding the moving part, for example, it can be the side wall of the groove structure 3, or it can be a slide rail on the side wall of the groove structure 3, preferably a hole arranged on the side wall of the groove structure 3. The sliding mechanism is a hole on the side wall of the groove structure 3, which can facilitate the movement of the moving part on the one hand, and prevent the moving part from being displaced or falling out on the other hand, causing the sampling tube 1 to be hit hard, causing damage to the original core.

[0035] like Figure 1 and Figure 3 As shown, in order to firmly fix the sampling tube 1 and facilitate the disassembly of the outer tube of the sampling tube 1, specifically, the fixing part may include: a splint 6, which is used to fix one end of the sampling tube 1; and a connecting rod 7, which facilitates the splint 6 to fix and loosen the sampling tube 1. By firmly fixing one end of the sampling tube 1 by the splint 6, the sampling tube 1 is prevented from shaking during operation, thereby ensuring smooth disassembly of the outer tube. The connecting rod 7 enables the splint 6 to easily fix and loosen the sampling tube 1, simplifying the operating process and improving the replacement efficiency. The adjustment function of the connecting rod 7 makes fixing and disassembly more labor-saving. In addition, the cooperation between the splint 6 and the connecting rod 7 has strong adaptability, and can be applied to sampling tubes 1 of different sizes, thereby improving the versatility of the fixing part. The clamp 6 may include two semicircular clamps 61 and a connector 62, and the clamp 61 is fixedly connected to the top of the connector 62, and the connector 62 is provided with a through hole vertically arranged on the connector 62 for passing the connecting rod 7. The two semicircular clamps 61 form a stable fixing effect around the sampling tube 1 to ensure that the sampling tube 1 does not slide or deflect. The through hole allows the connecting rod 7 to pass through, so as to realize flexible adjustment of the clamp 61, facilitate quick fixing or loosening of the sampling tube 1, simplify the operation process and improve the replacement efficiency. At the same time, the design is suitable for sampling tubes 1 of different diameters, enhances the compatibility and structural stability of the equipment, and ensures that the device is more reliable during operation. The semicircular interior of the clamping member 61 is also provided with an anti-slip member 63, which may be an anti-slip coating, an anti-slip patch, a friction powder layer, a soft lining, or a micro-suction cup layer, preferably an anti-slip strip, which can provide a high friction force to effectively prevent the sampling tube 1 from sliding, and the soft material can also provide a buffer to prevent damage to the sampling tube 1. The anti-slip strip is easy to install, easy to replace, durable and suitable for long-term use, which can reduce the maintenance frequency and extend the life of the device. The anti-slip strip may be made of a suitable material, such as rubber.

[0036] like Figure 2As shown, in order to facilitate the movement of the clamping member 61, the clamping member 61 can slide on the connecting rod 7. Specifically, the connecting rod 7 may include a slide bar 71 fixed to the pad support frame and an adjustment rod 72 passing through the pad second support frame 42, and the slide bar 71 is arranged in parallel with the adjustment rod 72. The slide bars 71 may be of appropriate number. In order to maintain the balance of the clamping member 61, in the preferred embodiment of the present application, the number of the slide bars 71 is 2, which are respectively arranged on both sides of the adjustment rod 72.

[0037] In order to adjust the clamping state of the clamping member 61, specifically, the adjustment rod 72 passes through the middle of the second support frame 42 of the pad portion, and a turntable 8 is also provided on the outside of the second support frame 42 for rotating the adjustment rod 72 so that the two clamping members 61 of the clamping plate 6 can be changed between the state of being close to the sampling tube 1 and being away from it. The clamping member 61 and the adjustment rod 72 are threadedly matched, and two opposite threads are provided on the top of the adjustment rod 72. The threaded matching method can make the two clamping members 61 approach or be away from each other at the same time, ensuring that the sampling tube 1 is stably fixed. A handle 81 perpendicular to the axial direction of the turntable 8 is provided on the outside of the turntable 8 to facilitate the rotation of the turntable 8.

[0038] like Figure 1 and Figure 2 As shown, in order to improve the operational stability of the device, specifically, the moving part may include an inverted T-shaped structure 9, the long side of which is slidably connected to the sliding structure 5 of the pad part; and a circular structure 10 arranged at the top of the short side of the inverted T-shaped structure 9, the circular structure 10 is hollow inside and is used to support and move the sampling tube 1. It can ensure that the moving process is smooth and the direction is controlled, thereby improving the operational stability of the device. The circular structure 10 is fixedly connected to the inverted T-shaped structure 9 by welding, and a hollow circular structure 10 is provided at the top of the short side of the inverted T-shaped structure 9, which is convenient for supporting the sampling tube 1 so that it remains stable and protected during the movement. This design is convenient for adjusting and positioning the sampling tube 1, and can adapt to different operating requirements, thereby enhancing the flexibility and reliability of the device. Limiting grooves are also provided at both ends of the long side of the T-shaped structure 9, which are used for connecting the sliding mechanism 5 to prevent the displacement of the moving part.

[0039] like Figure 4As shown, in order to facilitate the disassembly of the outer tube of the sampling tube 1, specifically, the disassembly part may include: a disassembly ring 11, which includes a rotating ring 111 and a fixing piece 112 fixedly connected to the side of the rotating ring 111; a fixing column 12 and a fixing ring 13, wherein the fixing column 12 passes through the through hole on the fixing piece 112 and is parallel to the radial direction of the disassembly ring 11 and the fixing ring 13, and is fixedly connected to the fixing ring 13. There are two fixing pieces 112, which are symmetrically arranged on the side of the rotating ring 111, and there are two fixing columns 12, which pass through the fixing pieces 112, and are connected to the fixing pieces 112 by threaded cooperation, and are used to adjust the fixing ring 13 to fix the sampling tube 1. A handle 15 is also provided on the outside of the rotating ring 111, which is used to rotate the rotating ring 111 and disassemble the outer tube. The handle 15 may be of an appropriate number, for example, one or two, and is preferably symmetrically arranged on the outside of the rotating ring. The handle may be in an appropriate form to facilitate the rotation of the rotating ring. A soft pad 131 is also provided on the inner side of the fixing ring 13 to increase the friction between the fixing ring 13 and the sampling tube 1 and to provide a certain buffer. The soft pad 131 may be made of a suitable material with anti-slip properties, such as rubber.

[0040] The outer diameter and inner diameter of the rotating ring 111 are larger than the outer diameter of the circular structure 10 of the moving part. On the one hand, the disassembly part can be temporarily fixed to the moving part when the disassembly work is not being carried out to prevent the disassembly part from being lost; on the other hand, when the sampling tube 1 is installed, it is also convenient for the sampling tube 1 to be fixed by the fixing ring 13. During the disassembly process, the rotating ring 111 is gradually disconnected from the moving part. The outer side of the rotating ring 111 and the outer diameter of the circular structure 10 of the moving part are provided with threads of the same width for matching connection.

[0041] like Figure 2 As shown, in order to temporarily store the original core in the half-closed tube after the sampling tube 1 is disassembled, specifically, the original core sampling device can also include a placement device 14, which is detachably connected to the pad part and is used to place and transfer the original core. The placement device 14 can temporarily store the original core, and transfer it after all sampling is completed, which effectively ensures the consistency of the original core sampling and avoids differences caused by batch transfer.

[0042] like Figure 2 and Figure 5As shown, in order to temporarily store the original core, specifically, the placement device may include: a placement plate 141 for placing the original core sampled multiple times; and a sealing cylinder 142, which is arranged on the placement plate 141 and used to fix the original core. The placement plate 141 is detachably connected to the backing plate part to facilitate the transfer of the placement plate. The detachable connection method may be an appropriate method, such as bolt connection, snap connection, magnetic connection, and slide connection. Preferably, it is a positioning pin connection. Positioning pins 143 are respectively arranged at both ends of the long side of the backing plate 2, and corresponding positioning holes 144 are respectively arranged at both ends of the placement plate 141. When in use, the placement plate 141 can be connected to the backing plate 2. When it is necessary to transfer, the connection can be disconnected. The use of the positioning pin connection makes the transfer of the original core more convenient, and also avoids the problem of damage to the original core caused by vibration that may occur during the transfer process. A semicircular groove is also arranged on the placement plate 141 for storing the original core; the sealing cylinder 142 is also a semicircular groove structure, corresponding to the groove on the placement plate 141. The sealing cylinder 142 is connected to the placing plate 141 at one end by a hinge 145 and at the other end by a buckle 146, so as to facilitate the opening or closing of the sealing cylinder. The number of grooves on the placing plate of the sealing cylinder machine can be set as required.

[0043] The original core sampling device proposed in this application can enable the sampling tube to be quickly, safely and accurately removed from the outer tube after sampling is completed, greatly improving the convenience of the operation process and effectively reducing the labor intensity and work efficiency of on-site staff. In addition, it also ensures that the original state of the original core taken is not damaged, thereby improving the sampling efficiency and sample quality of soil survey.

[0044] The preferred embodiments of the present application are described in detail above; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0045] It should also 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, this application will not further describe various possible combinations.

[0046] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed by the present invention.

Claims

1. The original core sampling device is characterized in that: The original core sampling device comprises: A pad portion, the pad portion providing a stable foundation for the original core sampling device; A fixing portion, which is arranged above one side of the pad portion and is used to support and fix one end of the sampling tube (1); A moving part, which is slidably connected to the backing plate part and is used to support and move the sampling tube (1); A disassembly part is detachably connected to the moving part and is used for fixing and disassembling the outer tube of the sampling tube (1).

2. The original core sampling device according to claim 1, characterized in that: The pad part comprises: a pad (2) for providing stable support for the original core sampling device, the pad (1) being a rectangular plate with a groove structure (3) on the upper side, and A support frame (4), the support frame (4) comprising a first support frame (41) and a second support frame (42), which are respectively fixedly arranged on the top end of a side wall of one end of the groove structure (3).

3. The original core sampling device according to claim 2, characterized in that: A sliding structure (5) is provided from the side surface of one end of the pad (2) away from the support frame (4) to the middle of the pad (2), which is used 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).

4. The original core sampling device according to claim 1, characterized in that: The fixing part comprises: a clamping plate (6), which is used to fix one end of the sampling tube (1); A connecting rod (7) is provided to facilitate the clamping plate (6) to fix and release the sampling tube (1).

5. The original core sampling device according to claim 4, characterized in that: The clamping plate (6) comprises two semicircular clamping members (61) and a connecting member (62), wherein the clamping member (61) is fixedly connected to the top end of the connecting member (62), and the connecting member (62) is provided with a through hole vertically arranged on the connecting member (62).

6. The original core sampling device according to claim 4, characterized in that: The connecting rod (7) comprises a sliding rod (71) fixed to the support frame (4) of the pad portion and an adjusting rod (72) passing through the second support frame (42) of the pad portion, and the sliding rod (71) and the adjusting rod (72) are arranged in parallel.

7. The original core sampling device according to claim 6, characterized in that: The adjusting rod (72) passes through the middle of the second supporting frame (42) of the pad portion, and a turntable (8) is also provided on the outer side of the second supporting frame (42) for rotating the adjusting rod (72) so that the two clamping parts (61) of the clamping plate (6) can be switched between a state close to the sampling tube (1) and a state away from the sampling tube (1).

8. The original core sampling device according to claim 1, characterized in that: The moving part comprises an inverted T-shaped structure (9), the long side of which is slidably connected to the sliding structure (5) of the pad part; and A circular structure (10) is arranged at the top end of the short side of the inverted T-shaped structure (9), wherein the circular structure (10) is hollow inside and is used to support and move the sampling tube (1).

9. The original core sampling device according to claim 1, characterized in that: The disassembly unit comprises: A disassembly ring (11), the disassembly ring (11) comprising a swivel ring (111) and a fixing member (112) fixedly connected to a side surface of the swivel ring (111); A fixing column (12) and a fixing ring (13), wherein the fixing column (12) passes through a through hole on the fixing member (112) and is parallel to the radial direction of the disassembly ring (111) and the fixing ring (13), and is fixedly connected to the fixing ring (13).

10. The original core sampling device according to claim 1, characterized in that: The original core sampling device further comprises a placing device (14), wherein the placing device (14) is detachably connected to the pad portion and is used for placing and transferring the original core.

11. The original core sampling device according to claim 10, characterized in that: The placement device comprises: a placement plate (141) for placing the original cores sampled multiple times; and a sealing cylinder (142), which is arranged on the placement plate (141) and is used to fix the original core.

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