A kind of roller compacted material sampling device based on ring knife method sampling

Abstract

This utility model discloses a sampling device for compacted materials based on the ring cutter method, relating to the field of auxiliary sampling technology for construction testing. The utility model includes a sampling cylinder with an open bottom, and a soil mixing cylinder with an open bottom coaxially arranged outside the sampling cylinder. A buffer cavity is provided between the inner wall of the soil mixing cylinder and the outer wall of the sampling cylinder, separated from each other. The soil mixing cylinder and the top side of the sampling cylinder are detachably and slidably connected. A disturbance block is constructed on the outer wall of the soil mixing cylinder. A drive mechanism for driving the coaxial rotation of the soil mixing cylinder is installed on the top surface of the sampling cylinder; this solves the problem of difficulty in removing samples from the ground after sampling in existing sampling devices.

Description

Technical Field

[0001] This utility model relates to the field of construction testing and sampling auxiliary technology, specifically, it is a sampling device for compacted materials based on the ring cutter method. Background Technology

[0002] The ring sampler method is a test method used to determine the density and compaction of soil. Its main purpose is to measure the dry or wet density of soil in the field by taking samples and to calculate its compaction.

[0003] Currently, when using the ring sampler method, there is a problem of difficulty in removing the sampling tube after it is inserted into the ground. Furthermore, during the removal process, precisely because the sampling tube is difficult to remove, shaking it can easily damage the sample fixed inside the tube, causing the material at both ends to leak out. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for compacted materials based on the ring cutter method, so as to solve the problem that it is difficult to remove the sample from the ground after the existing sampling device has completed the sampling.

[0005] To solve the above problems, the present invention adopts the following technical means:

[0006] A sampling device for compacted materials based on ring cutter sampling includes a sampling cylinder with an open bottom, a soil mixing cylinder with an open bottom coaxially arranged outside the sampling cylinder, a buffer cavity being separately arranged between the inner wall of the soil mixing cylinder and the outer wall of the sampling cylinder, the soil mixing cylinder and the top side of the sampling cylinder being detachably slidably connected, the outer wall of the soil mixing cylinder being constructed with a disturbance block, and a drive mechanism for driving the soil mixing cylinder to rotate coaxially on the top surface of the sampling cylinder.

[0007] Preferably, the top surface of the sampling tube has an annular groove on its outer edge, forming a stepped surface. The top surface of the soil mixing tube has a through hole, through which the top end of the sampling tube passes. The top surface of the soil mixing tube is slidably placed on the stepped surface formed by the annular groove. A drive tube is coaxially mounted on the top surface of the soil mixing tube. The inner wall of the drive tube has a first tooth structure, and the rotating end of the drive mechanism has a second tooth structure that meshes with the first tooth structure.

[0008] Furthermore, a plurality of first balls are inlaid and installed around the top surface of the annular groove along its axis, the top surface of the first balls abutting against the inner top surface of the mixing cylinder, an annular pressure plate is threadedly installed on the top side of the sampling cylinder, the annular pressure plate is installed on the side wall of the annular groove, and a plurality of second balls are inlaid and installed around the bottom surface of the annular pressure plate along its axis, the bottom surface of the second balls abutting against the outer top surface of the mixing cylinder.

[0009] Furthermore, the driving mechanism includes a rotating motor mounted on the top surface of the sampling cylinder. The rotating end of the rotating motor is upward and coaxial with the sampling cylinder. A driving disk is detachably mounted on the rotating end of the rotating motor, and the second tooth structure is located on the outer edge of the driving disk.

[0010] Furthermore, the drive disk is bonded to the rotating end, and a pressure plate is threaded onto the top of the rotating end, with the bottom surface of the pressure plate fitting against the top surface of the drive disk.

[0011] Furthermore, the pressure plate includes a pressure ring threadedly connected to the rotating end, and a bearing plate is rotatably sleeved on the outer wall of the pressure ring. The bottom surface of the pressure ring and the bearing plate abuts against the top surface of the drive plate.

[0012] Furthermore, the disturbance blocks are distributed on the outer wall of the mixing cylinder.

[0013] This utility model has the following beneficial effects during use:

[0014] During sampling, the sampling tube is placed on the ground and pressed down to move it downwards, allowing the material to be collected into the tube. Simultaneously, the drive mechanism is activated during this downward movement, causing the mixing drum to rotate around its axis. As the mixing drum moves downwards with the sampling tube, the agitator blocks outside the mixing drum loosen the soil on its outer wall, resulting in relatively vigorous agitation of the soil on the outer side. While the soil entering the buffer chamber is still scraped by the inner wall of the mixing drum as the equipment moves downwards, the agitation force is relatively small. This ensures that the soil outside the sampling tube becomes loose without excessive disturbance affecting the sample collected inside. In this way, after sampling, when the sampling tube is lifted upwards, the material inside the sampling tube can be removed along with the soil in the buffer chamber, ensuring that the bottom of the sampling tube will not collapse when the tube is removed. Thus, after removing the equipment, simply cleaning the soil from the buffer chamber allows the sample inside the sampling tube to settle. This effectively prevents damage to the end face of the material inside the sampling tube during the sampling process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 This is a cross-sectional front view of the present invention.

[0018] Among them, 1-sampling cylinder, 2-soil mixing cylinder, 3-buffer chamber, 4-disturbance block, 5-annular groove, 6-drive cylinder, 7-first tooth structure, 8-second tooth structure, 9-first ball bearing, 10-annular pressure plate, 11-second ball bearing, 12-rotating motor, 13-drive disc, 14-pressure plate, 15-pressure ring, 16-bearing plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please refer to Figures 1 to 3 As shown, a sampling device for compacted materials based on ring cutter sampling includes a sampling cylinder 1 with an open bottom, and a soil mixing cylinder 2 with an open bottom coaxially arranged outside the sampling cylinder 1. A buffer cavity 3 is provided between the inner wall of the soil mixing cylinder 2 and the outer wall of the sampling cylinder 1. The soil mixing cylinder 2 is detachably and slidably connected to the top side of the sampling cylinder 1. A disturbance block 4 is constructed on the outer wall of the soil mixing cylinder 2. A drive mechanism for driving the soil mixing cylinder 2 to rotate coaxially is installed on the top surface of the sampling cylinder 1.

[0026] In this way, during sampling, the sampling cylinder 1 is placed on the ground to be sampled, and then pressed down to move it downwards, allowing the material to be collected to be contained within it. Simultaneously, during the pressing down of the sampling cylinder 1, the drive mechanism is activated, causing the mixing cylinder 2 to rotate around its axis. As the mixing cylinder 2 moves downwards with the sampling cylinder 1, the agitator 4 located outside the mixing cylinder 2 loosens the soil on its outer wall, resulting in relatively vigorous agitation of the soil on the outer side. While the soil entering the buffer chamber 3 is still scraped by the inner wall of the mixing cylinder 2 as the equipment moves downwards, the external force of the agitation is relatively small. This ensures that the soil outside the sampling cylinder 1 becomes loose without excessive agitation affecting the sample collected inside. In this way, after sampling, when the sampling cylinder 1 is lifted upwards, the material inside the sampling cylinder 1 can be removed along with the soil in the buffer chamber 3, thus ensuring that the bottom of the material inside the sampling cylinder 1 will not collapse when the sampling cylinder 1 is removed. Therefore, after removing the equipment, simply cleaning the soil in the buffer chamber 3 is sufficient to allow the sample inside the sampling cylinder 1 to solidify. This effectively prevents damage to the end face of the material inside the sampling cylinder 1 during the sampling process.

[0027] Furthermore, the top outer edge of the sampling cylinder 1 is constructed with an annular groove 5 and forms a stepped surface, the top surface of the soil mixing cylinder 2 is constructed with a through hole, the top end of the sampling cylinder 1 passes through the through hole, the top surface of the soil mixing cylinder 2 is slidably placed on the stepped surface formed by the annular groove 5, a drive cylinder 6 is coaxially mounted on the top surface of the soil mixing cylinder 2, the inner wall of the drive cylinder 6 is constructed with a first tooth structure 7, and the rotating end of the drive mechanism is constructed with a second tooth structure 8 that meshes with the first tooth structure 7.

[0028] Furthermore, in order to reduce the intense friction between the mixing drum 2 and the sampling drum 1 during the rotation of the mixing drum 2, a plurality of first balls 9 are inlaid around the top surface of the annular groove 5 around its axis. The top surface of the first balls 9 abuts against the inner top surface of the mixing drum 2. An annular pressure plate 10 is threadedly installed on the top side of the sampling drum 1. The annular pressure plate 10 is installed on the side wall of the annular groove 5. A plurality of second balls 11 are inlaid around the bottom surface of the annular pressure plate 10 around its axis. The bottom surface of the second balls 11 abuts against the outer top surface of the mixing drum 2.

[0029] Furthermore, the driving mechanism includes a rotating motor 12 mounted on the top surface of the sampling cylinder 1. The rotating end of the rotating motor 12 is arranged upward and coaxially with the sampling cylinder 1. A driving disk 13 is detachably mounted on the rotating end of the rotating motor 12, and the second tooth structure 8 is located on the outer edge of the driving disk 13.

[0030] In this way, by removing the pressure plate 14 and then the annular pressure plate 10, the soil mixing cylinder 2 can be removed from the outer wall of the sampling cylinder 1, thereby exposing the buffer chamber 3 and facilitating the cleaning of the soil inside the buffer chamber 3.

[0031] Meanwhile, the drive disk 13 is bonded to the rotating end, and a pressure plate 14 is threadedly installed on the top end of the rotating end. The bottom surface of the pressure plate 14 is fitted to the top surface of the drive disk 13.

[0032] Furthermore, the pressure plate 14 includes a pressure ring 15 threadedly connected to the rotating end, and a bearing plate 16 is rotatably sleeved on the outer wall of the pressure ring 15. The bottom surface of the pressure ring 15 and the bearing plate 16 abuts against the top surface of the drive plate 13.

[0033] In this way, a counterweight can be placed on the support plate 16, which facilitates the downward movement of the sampling cylinder 1.

[0034] Furthermore, the disturbance blocks 4 are distributed on the outer wall of the mixing cylinder 2.

[0035] Although the present invention 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for sampling compacted material based on the method of the gyratory shear, characterized in that, The sample includes a sampling tube (1) with an open bottom, and a soil mixing tube (2) with an open bottom is coaxially arranged outside the sampling tube (1). A buffer cavity (3) is provided between the inner wall of the soil mixing tube (2) and the outer wall of the sampling tube (1). The soil mixing tube (2) is detachably and slidably connected to the top side of the sampling tube (1). A disturbance block (4) is constructed on the outer wall of the soil mixing tube (2). A drive mechanism for driving the soil mixing tube (2) to rotate coaxially is installed on the top surface of the sampling tube (1).

2. A device for sampling rolled material based on the ring method according to claim 1, characterized in that, The top surface of the sampling cylinder (1) has an annular groove (5) and forms a stepped surface. The top surface of the soil mixing cylinder (2) has a through hole. The top of the sampling cylinder (1) passes through the through hole. The top surface of the soil mixing cylinder (2) is slidably placed on the stepped surface formed by the annular groove (5). The top surface of the soil mixing cylinder (2) is coaxially mounted with a drive cylinder (6). The inner wall of the drive cylinder (6) has a first tooth structure (7). The rotating end of the drive mechanism has a second tooth structure (8) that meshes with the first tooth structure (7).

3. A device for sampling rolled material based on the ring method according to claim 2, characterized in that, The top surface of the annular groove (5) is inlaid with a plurality of first balls (9) around its axis. The top surface of the first balls (9) abuts against the inner top surface of the soil mixing cylinder (2). The top side of the sampling cylinder (1) is threaded with an annular pressure plate (10). The annular pressure plate (10) is installed on the side wall of the annular groove (5). The bottom surface of the annular pressure plate (10) is inlaid with a plurality of second balls (11) around its axis. The bottom surface of the second balls (11) abuts against the outer top surface of the soil mixing cylinder (2).

4. A device for sampling rolled material based on the ring method according to claim 3, characterized in that, The driving mechanism includes a rotating motor (12) installed on the top surface of the sampling cylinder (1). The rotating end of the rotating motor (12) is arranged upward and coaxially with the sampling cylinder (1). A driving disk (13) is detachably installed on the rotating end of the rotating motor (12). The second tooth structure (8) is located on the outer edge of the driving disk (13).

5. A device for sampling rolled material based on the ring method according to claim 4, characterized in that, The drive disk (13) is bonded to the rotating end, and a pressure plate (14) is threadedly installed on the top end of the rotating end. The bottom surface of the pressure plate (14) is fitted to the top surface of the drive disk (13).

6. A device for sampling rolled material based on the ring method according to claim 5, characterized in that, The pressure plate (14) includes a pressure ring (15) threadedly connected to the rotating end. The outer wall of the pressure ring (15) is rotatably fitted with a bearing plate (16). The bottom surface of the pressure ring (15) and the bearing plate (16) abuts against the top surface of the drive plate (13).

7. A sampling device for compacted materials based on ring cutter sampling according to claim 1, characterized in that, The disturbance blocks (4) are distributed on the outer wall of the mixing cylinder (2).

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