Detachable roadbed ground sampler
By designing a detachable roadbed surface sampler, and utilizing the snap-fit structure of the limiting cylinder, sampling cylinder flap, and screw, the problem of the cumbersome process of repeatedly removing samples required by existing samplers is solved, thus achieving rapid multiple sampling and efficient sampling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-20
AI Technical Summary
Existing roadbed surface samplers require the previously collected samples to be removed before sampling can be done again when multiple sampling tests are conducted. This process is cumbersome, and the samples inside the sampling tube are squeezed and compacted, making removal difficult and resulting in low sampling efficiency.
A detachable roadbed surface sampler was designed, including a limiting cylinder, a sampling cylinder flap, a screw, and a handle. Through a threaded connection and snap-fit structure, the screw can be separated from the sampling cylinder flap, which facilitates quick replacement of the sampling cylinder flap for multiple samplings.
It enables rapid, multiple sampling by the sampler, simplifies the sample collection process, and improves sampling efficiency.
Smart Images
Figure CN224019349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roadbed sampling technology, specifically a detachable roadbed surface sampler. Background Technology
[0002] Subgrade surface samplers are widely used in road construction, subgrade testing, and soil research. During road construction, samplers can be used to test the quality of road materials; in subgrade testing, they can be used to assess the stability and bearing capacity of the subgrade; and in soil research, they can be used to analyze the physicochemical properties and microbial communities of the soil.
[0003] The working principle of roadbed surface samplers mainly relies on their mechanical actions such as cutting, digging or drilling. When in use, the operator inserts the sampler into the soil to a specified depth, and then collects soil samples into the sampler through actions such as rotation, pushing and pulling or lifting. Different types of samplers may have different working principles, but they all follow this basic process in general.
[0004] Existing roadbed surface samplers require the removal of previously collected samples before repeated sampling when performing multiple sampling tests on the roadbed. However, removing samples necessitates using a pressing tool to force the sample out of the sampling cylinder, a cumbersome process with low sampling efficiency. Furthermore, the compacted sample within the sampling cylinder makes removal difficult. Therefore, those skilled in the art have developed a detachable roadbed surface sampler to address the problems described in the background section. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a detachable roadbed surface sampler. This solves the problem that existing roadbed surface samplers require removing the collected samples before sampling again when performing multiple sampling tests on the roadbed. However, removing the samples requires using a pressing tool to push the samples out of the sampling tube, which is cumbersome, has low sampling efficiency, and makes it difficult to remove the samples because they are compressed and compacted inside the sampling tube.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a detachable roadbed surface sampler, comprising a limiting cylinder, a sampling cylinder flap, a screw, and a handle. The sampling cylinder flap is disposed inside the limiting cylinder, and the handle is disposed above the screw. A threaded hole is provided at the top of the limiting cylinder, and the screw is threadedly connected to the limiting cylinder through the threaded hole. A hexagonal groove is provided at the top of the screw, and a hexagonal rod is installed in the middle of the handle. An insert is installed at the bottom of the screw, and slots are provided on both sides of the insert. A retaining groove is provided on the side wall of the sampling cylinder flap, and a retaining strip is slidably engaged in the retaining groove. A positioning groove is provided at the bottom of the sampling cylinder flap, and a movable groove is provided on one side of the positioning groove. A retaining block is disposed in the movable groove, and a limiting rod is installed on the inner wall of the movable groove, with a spring sleeved on the limiting rod.
[0009] Preferably, the handle is connected to the hexagonal slot on the screw via a hexagonal rod, which facilitates the removal of the handle for disassembly and cleaning of the screw later.
[0010] Preferably, the locking block is slidably engaged with the movable groove, the locking block is slidably inserted with the limiting rod, one end of the spring is in pressure contact with the locking block, and the other end of the spring is in pressure contact with the inner wall of the movable groove.
[0011] Preferably, the insert block is inserted into the positioning groove, and the locking block is inserted into the slot, thereby fixing the screw and the insert block, so that the screw can drive the sampling cylinder to rotate downward for sampling.
[0012] Preferably, the top of the sampling tube flap is provided with a snap-fit groove, which is located on one side of the positioning groove. The snap-fit groove facilitates the pulling out of the locking strip.
[0013] Preferably, the bottom end of the limiting cylinder is equipped with foot pedals on both sides, which are used for the operator to step on and fix the cylinder, and the foot pedals are provided with anti-slip textures.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a detachable roadbed surface sampler, which has the following advantages:
[0016] The sampler in this utility model is designed to consist of a limiting cylinder, a sampling cylinder segment, a screw, and a handle. The screw and handle are movably connected via a hexagonal rod and a hexagonal slot. The screw is threadedly connected to the sampling cylinder. After removing the handle, the screw can be removed from the sampling cylinder for easy disassembly and cleaning. After sampling, the locking block on the sampling cylinder segment can be pushed outward to disengage it from the locking block, thus separating the sampling cylinder segment from the screw. When collecting the sample, the locking strip can be pulled out of the slot, allowing the two sampling cylinder segments to separate, facilitating sample collection. Furthermore, multiple sampling cylinder segments can be prepared to form a sampling cylinder, allowing for rapid and multiple samplings by directly replacing the sampling cylinder. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of a detachable roadbed surface sampler provided in an embodiment of this application.
[0018] Figure 2 This is a schematic diagram of the limiting cylinder in a detachable roadbed surface sampler provided in an embodiment of this application.
[0019] Figure 3 This is a schematic diagram of the sampling cylinder segment in a detachable roadbed surface sampler provided in an embodiment of this application.
[0020] Figure 4 This is a schematic diagram of the pedal structure in a detachable roadbed surface sampler provided in an embodiment of this application.
[0021] Figure 5 This is a cross-sectional view of the screw in a detachable roadbed surface sampler provided in an embodiment of this application.
[0022] Figure 6 This is a schematic diagram of the structure of the clip in a detachable roadbed surface sampler provided in an embodiment of this application.
[0023] Figure 7 This is a detachable roadbed surface sampler provided in an embodiment of this application. Figure 6 Enlarged view of the structure at point A.
[0024] In the diagram: 1. Limiting cylinder; 101. Foot pedal; 102. Threaded hole; 2. Screw; 201. Hexagonal groove; 3. Handle; 301. Hexagonal rod; 4. Insert block; 401. Slot; 5. Sampling cylinder flap; 501. Locking groove; 502. Buckling groove; 503. Positioning groove; 504. Movable groove; 505. Limiting rod; 6. Spring; 7. Locking block; 8. Locking strip. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model provides a technical solution: a detachable roadbed surface sampler. Please refer to [link / reference]. Figure 1-7The device includes a limiting cylinder 1, a sampling cylinder 5, a screw 2, and a handle 3. Foot pedals 101 are installed on both sides of the bottom end of the limiting cylinder 1 for foot support and are provided with anti-slip textures. The sampling cylinder 5 is disposed inside the limiting cylinder 1. The handle 3 is positioned above the screw 2. A threaded hole 102 is provided at the top of the limiting cylinder 1, through which the screw 2 is threadedly connected to the limiting cylinder 1. A hexagonal groove 201 is provided at the top of the screw 2. A hexagonal rod 301 is installed in the middle of the handle 3, and an insert block 4 is installed at the bottom of the screw 2. Slots 401 are opened on both sides of the insert block 4. A slot 501 is opened on the side wall of the sampling cylinder 5. A locking strip 8 is slidably engaged in the slot 501. A positioning groove 503 is opened at the bottom of the sampling cylinder 5. A movable groove 504 is opened on one side of the positioning groove 503. A locking block 7 is set in the movable groove 504. A limit rod 505 is installed on the inner wall of the movable groove 504. A spring 6 is sleeved on the limit rod 505.
[0027] Please refer to 4-7. The handle 3 is inserted into the hexagonal groove 201 on the screw 2 via the hexagonal rod 301, which facilitates the removal of the handle 3 for disassembly and cleaning of the screw 2 later. The locking block 7 is slidably locked into the movable groove 504 and slidably inserted into the limiting rod 505. One end of the spring 6 is pressed against the locking block 7, and the other end of the spring 6 is pressed against the inner wall of the movable groove 504. The insert 4 is inserted into the positioning groove 503 and the locking block 7 is inserted into the slot 401, thereby fixing the screw 2 and the insert 4, which facilitates the screw 2 to drive the sampling cylinder 5 to rotate downward for sampling. The top of the sampling cylinder 5 is provided with a retaining groove 502, which is on one side of the positioning groove 503. The retaining groove 502 facilitates the pulling out of the locking strip 8.
[0028] The sampler in this utility model consists of a limiting cylinder 1, a sampling cylinder 5, a screw 2, and a handle 3. The bottom end of the limiting cylinder 1 is equipped with two foot pedals 101, which are used for the operator to step on and fix the device. The foot pedals 101 are also provided with anti-slip textures.
[0029] The sampling cylinder segment 5 is set inside the limiting cylinder 1. The two sampling cylinder segments 5 form a sampling cylinder shape. A slot 501 is opened on the side wall of the sampling cylinder segment 5. A locking strip 8 is inserted into the slot 501. The locking strip 8 is I-shaped. The two sampling cylinder segments 5 can be connected and fixed by the locking strip 8. A positioning groove 503 is opened on the top of the sampling cylinder plate. A buckle groove 502 is opened on both sides of the positioning groove 503. A movable groove 504 is opened on the other side of the positioning groove 503. A locking block 7 is set in the movable groove 504. The locking block 7 passes through the movable groove 504 and protrudes into the positioning groove 503. A limiting rod 505 is installed on the inner wall of the movable groove 504. The limiting rod 505 is slidably inserted into the locking block 7. A spring 6 is sleeved on the limiting rod 505. One end of the spring 6 is pressed against the locking block 7, and the other end is pressed against the inner wall of the movable groove 504. Under the action of the spring 6, one end of the locking block 7 can always protrude into the positioning groove 503.
[0030] A hexagonal groove 201 is provided at the upper end of the screw 2, and a hexagonal rod 301 is installed at the bottom of the handle 3. Therefore, the handle 3 and the screw 2 can be positioned and connected through the hexagonal rod 301 and the hexagonal groove 201. An insert block 4 is installed at the bottom end of the screw 2. Slots 401 are provided on both sides of the insert block 4. The insert block 4 can be inserted into the positioning groove 503 on the sampling cylinder 5. After insertion, the locking block 7 is inserted into the slot 401 on the insert block 4 for positioning, thereby fixing the screw 2 and the insert block 4, so that the screw 2 can drive the sampling cylinder 5 to rotate downward for sampling.
[0031] In this structure, the screw 2 and the handle 3 are movably connected via a hexagonal rod 301 and a hexagonal groove 201. The screw 2 is threadedly connected to the sampling cylinder. After disassembling the handle 3, the screw 2 can be removed from the sampling cylinder. After sampling is completed, the locking block 7 on the sampling cylinder lobe 5 can be pushed outward to disengage the locking block 7 from the locking block 4. At this time, the sampling cylinder lobe 5 is separated from the screw 2. When collecting the sample, the locking strip 8 can be pulled out of the locking groove 501. At this time, the two sampling cylinder lobe 5 can be separated, which facilitates the collection of the collected sample. Furthermore, by preparing a sampling cylinder composed of multiple sampling cylinder lobe 5, multiple samplings can be performed quickly by directly replacing the sampling cylinder.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A detachable roadbed surface sampler, comprising a limiting cylinder (1), a sampling cylinder flap (5), a screw (2), and a handle (3), wherein the sampling cylinder flap (5) is disposed inside the limiting cylinder (1), and the handle (3) is disposed above the screw (2), characterized in that: The top of the limiting cylinder (1) is provided with a threaded hole (102). The screw (2) is threadedly connected to the limiting cylinder (1) through the threaded hole (102). The top of the screw (2) is provided with a hexagonal groove (201). The middle of the handle (3) is provided with a hexagonal rod (301). The bottom of the screw (2) is provided with a plug (4). The two sides of the plug (4) are provided with slots (401). The side wall of the sampling cylinder (5) is provided with a slot (501). The slot (501) is slidably engaged with a locking strip (8). The bottom of the sampling cylinder (5) is provided with a positioning groove (503). The side of the positioning groove (503) is provided with a movable groove (504). The movable groove (504) is provided with a locking block (7). The inner wall of the movable groove (504) is provided with a limiting rod (505). The limiting rod (505) is fitted with a spring (6).
2. The detachable roadbed surface sampler according to claim 1, characterized in that: The handle (3) is inserted into the hexagonal slot (201) on the screw (2) via a hexagonal rod (301).
3. A detachable roadbed surface sampler according to claim 1, characterized in that: The locking block (7) is slidably engaged with the movable groove (504), the locking block (7) is slidably inserted with the limiting rod (505), one end of the spring (6) is pressed against the locking block (7), and the other end of the spring (6) is pressed against the inner wall of the movable groove (504).
4. A detachable roadbed surface sampler according to claim 1, characterized in that: The insert (4) is inserted into the positioning groove (503), and the card block (7) is inserted into the slot (401).
5. A detachable roadbed surface sampler according to claim 1, characterized in that: The top of the sampling tube (5) is provided with a snap groove (502), which is located on one side of the positioning groove (503).
6. A detachable roadbed surface sampler according to claim 1, characterized in that: The bottom end of the limiting cylinder (1) is equipped with a foot pedal (101) on both sides.