Sample storage device for soil detection

Abstract

The utility model relates to the technical field of soil detection, and discloses a sample storage device for soil detection, which comprises a round barrel, a barrel cover, a nut, a screw rod, a round plate, a pressing plate, a spring and a hand wheel. In the using process, the hand wheel is rotated to drive the screw rod to rotate. Through interaction of the threads, the position of the screw relative to the nut can be changed. Further, the position of the circular plate relative to the accommodating cavity is changed, and finally, the pressing plate can be driven to press the soil sample stored in the accommodating cavity. Therefore, the activity space of the soil sample is reduced and the original state of the soil sample is kept. Moreover, in the transportation process, when the stored soil is jolted, gaps of soil particles are reduced. And under the elastic action of the spring, the pressing plate is far away from the circular plate. The position of the pressing plate can be changed along with the volume of the soil, so that the pressing plate can continuously press the soil sample.

Description

Technical Field

[0001] The present application relates to the technical field of soil detection, for example, to a sample storage device for soil detection. Background Art

[0002] Currently, soil sample storage refers to the process of maintaining the usability of soil samples under specified time intervals and predetermined conditions from the time the soil samples are collected until further processing. The most basic requirement for soil sample storage is that the soil properties should not change significantly during the storage period. For freshly collected soil samples, especially those related to microbial activity, redox conditions, volatile substances, etc., they need to be sealed during storage, otherwise the soil properties will change significantly. Related technology (publication number: CN220077090U) discloses a soil sample storage device for soil testing, including a cylinder. Connecting blocks are fixedly connected to both sides of the top of the cylinder, and an opening is provided on one side of the connecting block. A connecting plate is provided at the top of the cylinder, and a clamping block is fixedly connected to the bottom of both sides of the connecting plate, and the clamping block is adapted to the opening. A screw is threadedly connected to the middle of the connecting plate, a rotating block is fixedly connected to the top of the screw, and a pressure plate is rotatably connected to the bottom of the screw, and the pressure plate is adapted to the cylinder.

[0003] In the process of implementing the above embodiments, it was found that there are at least the following problems in the related art:

[0004] The coordination of the connecting block, connecting plate, screw, rotating block, clamping block, pressing plate, and opening allows the pressing plate to be positioned according to the volume of the soil inside the cylinder. This reduces the free space for the soil sample to move, preserving its original state. However, during transportation, the stored soil is subjected to turbulence, and the gaps between soil particles gradually decrease. This reduces the volume of the soil, creating a gap between the pressing plate and the soil sample, making it impossible for the pressing plate to maintain its tight grip on the soil sample.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiment of the present disclosure provides a sample storage device for soil testing, so that the position of a pressing plate can be changed according to the volume of the soil.

[0008] In some embodiments, a sample preservation device for soil testing includes: a barrel, which includes a accommodating cavity; a barrel cover, detachably mounted on the barrel, for opening or closing the accommodating cavity; a nut, fixed at the center of the barrel cover; a screw, threadedly connected to the nut and movably passed through the barrel cover; a circular plate, rotatably mounted on one end of the screw, and can be accommodated in the accommodating cavity; a pressure plate, located below the circular plate along the height direction of the barrel; a spring, mounted between the opposite surfaces of the circular plate and the pressure plate; a handwheel, mounted on the other end of the screw for holding; wherein, when the barrel cover closes the accommodating cavity, the annular side surface of the pressure plate fits against the annular inner wall of the barrel.

[0009] Optionally, the barrel includes an external thread; the barrel cover includes an internal thread, and the internal thread matches the external thread; wherein the barrel cover is detachably mounted on the barrel via the internal thread and the external thread.

[0010] Optionally, it further includes: a deep groove ball bearing installed between the screw and the circular plate; wherein the inner ring of the deep groove ball bearing abuts against the screw, and the outer ring of the deep groove ball bearing abuts against the circular plate.

[0011] Optionally, it further includes: a first elastic retaining ring, which is clamped on the screw and located on both sides of the screw along the axial direction of the screw; wherein the deep groove ball bearing is located between the first elastic retaining rings on both sides.

[0012] Optionally, it further includes: a second elastic retaining ring, which is clamped on the circular plate and located on both sides of the circular plate along the thickness direction of the circular plate; wherein the deep groove ball bearing is located between the second elastic retaining rings on both sides.

[0013] Optionally, it further includes: a linear optical axis, which is slidably arranged on the circular plate and connected to the pressure plate; wherein the spring is sleeved on the linear optical axis.

[0014] Optionally, it further includes: a linear bearing, which is sleeved on the linear optical axis and installed on the circular plate.

[0015] Optionally, it further includes: a limiting ring installed on the linear optical axis; wherein, along the axial direction of the linear optical axis, the circular plate and the linear bearing are located between the spring and the limiting ring.

[0016] Optionally, it further includes: a handle connected to the outer wall of the barrel cover for holding.

[0017] The soil testing sample storage device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] The present disclosure provides a sample storage device for soil testing, comprising a barrel, a barrel lid, a nut, a screw, a circular plate, a pressure plate, a spring, and a handwheel. The barrel includes a receiving chamber for storing soil samples. The barrel lid is removably mounted to the barrel for opening and closing the receiving chamber. A nut is fixed at the center of the barrel lid to support the mounting screw. The screw is threadedly connected to the nut and movably extends through the barrel lid to convert rotational motion into linear motion. The circular plate is rotatably mounted to one end of the screw and accommodated in the receiving chamber, enabling rotational motion relative to the screw. A pressure plate is located below the circular plate along the height of the barrel to compress the soil sample. A spring is mounted between the opposing surfaces of the circular plate and the pressure plate to provide elastic force. A handwheel is mounted on the other end of the screw for gripping, enabling manual rotation of the screw. When the barrel lid closes the receiving chamber, the annular side surface of the pressure plate abuts against the annular inner wall of the barrel to prevent the soil sample from leaking through the gap between the pressure plate and the barrel.

[0019] During use, turning the handwheel drives the screw to rotate. Through the interaction between the threads, the position of the screw relative to the nut can be changed. This in turn changes the position of the circular plate relative to the accommodating chamber, ultimately driving the pressure plate to compress the soil sample stored in the accommodating chamber. This reduces the movement space of the soil sample and maintains the original state of the soil sample. In addition, during transportation, when the stored soil is bumped and the gaps between the soil particles decrease, the pressure plate will move away from the circular plate under the elastic force of the spring. This allows the position of the pressure plate to change with the volume of the soil, ensuring that the pressure plate can continuously compress the soil sample.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0022] Figure 1 is a schematic cross-sectional view of a soil testing sample storage device provided by an embodiment of the present disclosure;

[0023] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 4This is a schematic diagram of the main structure of a sample storage device for soil testing provided by an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 1: Barrel; 2: Barrel cover; 3: Nut; 4: Screw; 5: Round plate; 6: Pressure plate; 7: Spring; 8: Handwheel; 9: Deep groove ball bearing; 10: First circlip; 11: Second circlip; 12: Linear axis; 13: Linear bearing; 14: Limiting ring; 15: Handle; 16: Grip; 17: Metal gasket. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0035] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0036] Combine Figures 1 to 4 As shown, an embodiment of the present disclosure provides a sample preservation device for soil testing, including a barrel 1, a barrel cover 2, a nut 3, a screw 4, a circular plate 5, a pressure plate 6, a spring 7 and a handwheel 8. The barrel 1 includes a accommodating chamber. The barrel cover 2 is detachably mounted on the barrel 1 for opening or closing the accommodating chamber. The nut 3 is fixed at the center of the barrel cover 2. The screw 4 is threadedly connected to the nut 3 and is movably arranged on the barrel cover 2. The circular plate 5 is rotatably mounted on one end of the screw 4 and can be accommodated in the accommodating chamber. Along the height direction of the barrel 1, the pressure plate 6 is located below the circular plate 5. The spring 7 is mounted between the opposite surfaces of the circular plate 5 and the pressure plate 6. The handwheel 8 is mounted on the other end of the screw 4 for gripping. When the barrel cover 2 closes the accommodating chamber, the annular side surface of the pressure plate 6 fits into the annular inner wall of the barrel 1.

[0037] A sample storage device for soil testing provided by an embodiment of the present disclosure includes a barrel 1, a barrel cover 2, a nut 3, a screw 4, a circular plate 5, a pressure plate 6, a spring 7 and a handwheel 8. The barrel 1 includes a accommodating chamber. The barrel 1 is used to store soil samples. The barrel cover 2 is detachably mounted on the barrel 1 for opening or closing the accommodating chamber. The nut 3 is fixed at the center of the barrel cover 2 for supporting the installation of the screw 4. The screw 4 is threadedly connected to the nut 3 and is movably inserted into the barrel cover 2 for converting rotational motion into linear motion. The circular plate 5 is rotatably mounted on one end of the screw 4 and can be accommodated in the accommodating chamber and can rotate relative to the screw 4. Along the height direction of the barrel 1, the pressure plate 6 is located below the circular plate 5 for pressing the soil sample. The spring 7 is mounted between the opposite surfaces of the circular plate 5 and the pressure plate 6 for providing elastic force. The handwheel 8 is mounted on the other end of the screw 4 for holding so that the screw 4 can be manually driven to rotate. When the barrel cover 2 closes the accommodating chamber, the annular side surface of the pressing plate 6 fits against the annular inner wall of the barrel 1 to prevent the soil sample from leaking out of the gap between the pressing plate 6 and the barrel.

[0038] During use, turning the handwheel 8 can drive the screw 4 to rotate. Through the interaction between the threads, the position of the screw 4 relative to the nut 3 can be changed. In turn, the position of the circular plate 5 relative to the accommodating chamber is changed, and finally the pressing plate 6 can be driven to compress the soil sample stored in the accommodating chamber. This reduces the activity space of the soil sample and maintains the original state of the soil sample. In addition, during transportation, when the stored soil is bumped and the gap between the soil particles is reduced. Under the elastic force of the spring 7, the pressing plate 6 will move away from the circular plate 5. This allows the position of the pressing plate 6 to change with the volume of the soil, ensuring that the pressing plate 6 can continue to compress the soil sample.

[0039] Optionally, combined Figure 1 As shown, the drum 1 includes an external thread. The drum cover 2 includes an internal thread that matches the external thread. The drum cover 2 is detachably mounted on the drum 1 via the internal and external threads.

[0040] In the disclosed embodiment, the drum 1 includes external threads, and the lid 2 includes internal threads that match the external threads. The lid 2 is removably attached to the drum 1 via the internal and external threads. This threaded connection offers advantages such as a stable connection and ease of disassembly. It also provides a good seal, helping to preserve the freshness of soil samples and ensuring that soil properties do not significantly change during storage.

[0041] Optionally, combined Figure 1 and Figure 2 As shown, a deep groove ball bearing 9 is also included. The deep groove ball bearing 9 is installed between the screw 4 and the circular plate 5. The inner ring of the deep groove ball bearing 9 is against the screw 4, and the outer ring of the deep groove ball bearing 9 is against the circular plate 5.

[0042] In the disclosed embodiment, a deep groove ball bearing 9 is further mounted between the screw 4 and the circular plate 5. The inner ring of the deep groove ball bearing 9 abuts against the screw 4, while the outer ring of the deep groove ball bearing 9 abuts against the circular plate 5, allowing the circular plate 5 and the screw 4 to rotate relative to each other. This allows the circular plate 5, driven by the screw 4, to only move without rotating, and only compress the soil without rubbing against the soil surface.

[0043] Optionally, combined Figure 1 and Figure 2 As shown, the screw rod 4 further includes a first circlip 10. The first circlip 10 is clamped on the screw rod 4 and is located on both sides of the screw rod 4 along the axial direction of the screw rod 4. The deep groove ball bearing 9 is located between the first circlips 10 on both sides.

[0044] In the disclosed embodiment, a first circlip 10 is mounted on the screw 4. Along the axial direction of the screw 4, the first circlip 10 is located on both sides of the screw 4, and both first circlips 10 abut against the deep groove ball bearing 9. The deep groove ball bearing 9 is fixed between the two first circlips 10, thereby determining the relative position of the screw 4 and the deep groove ball bearing 9.

[0045] Optionally, combined Figure 1 and Figure 2 As shown, the second circlip 11 is further included. The second circlip 11 is clamped on the circular plate 5 and is located on both sides of the circular plate 5 along the thickness direction of the circular plate 5. The deep groove ball bearing 9 is located between the second circlips 11 on both sides.

[0046] In the disclosed embodiment, a second circlip 11 is also included, which is mounted on the circular plate 5. Along the thickness direction of the circular plate 5, the second circlip 11 is located on both sides of the circular plate 5, and each of the second circlips 11 abuts against the deep groove ball bearing 9. The deep groove ball bearing 9 is fixed between the two second circlips 11, thereby determining the relative position of the circular plate 5 and the deep groove ball bearing 9.

[0047] Optionally, combined Figure 1 and Figure 3 As shown, it also includes a linear optical axis 12. The linear optical axis 12 is slidably arranged on the circular plate 5 and connected to the pressure plate 6. The spring 7 is sleeved on the linear optical axis 12.

[0048] In the disclosed embodiment, a linear optical axis 12 is further included that is slidably disposed through the circular plate 5 and connected to the pressure plate 6. The linear optical axis 12 serves as a guide support to improve the stability of the circular plate 5 and the pressure plate 6 during relative motion and to ensure that the spring 7 can only be compressed.

[0049] Optionally, combined Figure 1 and Figure 3 As shown, a linear bearing 13 is also included. The linear bearing 13 is sleeved on the linear optical axis 12 and mounted on the circular plate 5.

[0050] In the disclosed embodiment, a linear bearing 13 is further included, which is mounted on the linear optical axis 12 and the circular plate 5. The linear bearing 13 is used to reduce the friction between the linear optical axis 12 and the circular plate 5 and improve the accuracy of the linear optical axis 12 when it moves relative to the circular plate 5.

[0051] Optionally, combined Figure 1 and Figure 3 As shown, it also includes a limiting ring 14. The limiting ring 14 is installed on the linear optical axis 12. Wherein, along the axial direction of the linear optical axis 12, the circular plate 5 and the linear bearing 13 are located between the spring 7 and the limiting ring 14.

[0052] In the disclosed embodiment, a retaining ring 14 is also included, which is mounted on the linear optical axis 12. Along the axial direction of the linear optical axis 12, the circular plate 5 and the linear bearing 13 are located between the spring 7 and the retaining ring 14, thereby preventing the linear optical axis 12 from falling off the circular plate 5 and the linear bearing 13 due to the elastic force of the spring 7.

[0053] Optionally, combined Figure 1 and Figure 4 As shown, the bucket lid 2 further comprises a handle 15. The handle 15 is connected to the outer wall of the bucket lid 2 for holding.

[0054] In the embodiment of the present disclosure, a handle 15 is further included that is connected to the outer wall of the bucket cover 2. The handle 15 is used for holding so as to facilitate the removal of the bucket cover 2.

[0055] Optionally, combined Figure 1 and Figure 4 As shown, a handle 16 is also included. The handle 16 is rotatably mounted on the hand wheel 8 for holding. Wherein, the center line of the handle 16 is parallel to the center line of the hand wheel 8.

[0056] In the disclosed embodiment, a handle 16 rotatably mounted on the hand wheel 8 is further included. The handle 16 is used for holding so as to manually drive the hand wheel 8 to rotate.

[0057] Optionally, combined Figure 1 and Figure 3 As shown, a metal gasket 17 is also included. The metal gasket 17 is sleeved on the linear optical axis 12 and is located at the contact point between the spring 7, the circular plate 5 and the pressure plate 6.

[0058] In the embodiment of the present disclosure, a metal washer 17 is further included which is sleeved on the linear optical axis 12. The metal washer 17 is located at the contact point between the spring 7 and the circular plate 5 and the pressure plate 6 to prevent the surfaces of the circular plate 5 and the pressure plate 6 from being worn and damaged by the spring 7.

[0059] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A soil testing sample storage device, characterized in that: include: A barrel, the barrel comprising a receiving chamber; a barrel cover, detachably mounted on the barrel, for opening or closing the containing chamber; A nut, fixed at the center of the barrel cover; a screw, threadedly connected to the nut and movably inserted into the barrel cover; a circular plate rotatably mounted on one end of the screw and capable of being accommodated in the accommodation cavity; A pressing plate, located below the circular plate along the height direction of the barrel; a spring mounted between the circular plate and the opposing surfaces of the pressure plate; A hand wheel is mounted on the other end of the screw and is used for gripping; When the barrel cover closes the accommodating cavity, the annular side surface of the pressure plate fits into the annular inner wall of the barrel.

2. The soil testing sample storage device according to claim 1, characterized in that: The barrel includes external threads; The barrel cover includes an internal thread, and the internal thread matches the external thread; Wherein, the barrel cover is detachably mounted on the barrel via the internal thread and the external thread.

3. The soil testing sample storage device according to claim 1, characterized in that: Also includes: A deep groove ball bearing is installed between the screw and the circular plate; The inner ring of the deep groove ball bearing abuts against the screw, and the outer ring of the deep groove ball bearing abuts against the circular plate.

4. A soil testing sample storage device according to claim 3, characterized in that: Also includes: A first elastic retaining ring is clamped on the screw and is located on both sides of the screw along the axial direction of the screw; Wherein, the deep groove ball bearing is located between the first elastic retaining rings on both sides.

5. The soil testing sample storage device according to claim 3, characterized in that: Also includes: A second elastic retaining ring is clamped on the circular plate and is located on both sides of the circular plate along the thickness direction of the circular plate; Wherein, the deep groove ball bearing is located between the second elastic retaining rings on both sides.

6. The soil testing sample storage device according to claim 1, characterized in that: Also includes: A linear optical axis is slidably disposed on the circular plate and connected to the pressure plate; Wherein, the spring is sleeved on the linear optical axis.

7. A soil testing sample storage device according to claim 6, characterized in that: Also includes: A linear bearing is sleeved on the linear optical axis and installed on the circular plate.

8. The soil testing sample storage device according to claim 7, characterized in that: Also includes: A limiting ring, mounted on the linear optical axis; Wherein, along the axial direction of the linear optical axis, the circular plate and the linear bearing are located between the spring and the limiting ring.

9. A soil testing sample storage device according to any one of claims 1 to 8, characterized in that: Also includes: A handle is connected to the outer wall of the barrel cover and is used for holding.

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